[openwrt/staging/hauke.git] / target / linux / bcm27xx / patches-6.1 / 950-0124-Add-support-for-all-the-downstream-rpi-sound-card-dr.patch

From c30c73263981026201fc45fcc54d6e58d061b61e Mon Sep 17 00:00:00 2001
From: Florian Meier <florian.meier@koalo.de>
Date: Mon, 25 Jan 2016 15:48:59 +0000
Subject: [PATCH] Add support for all the downstream rpi sound card
 drivers
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ASoC: Add support for Rpi-DAC

ASoC: Add prompt for ICS43432 codec

Without a prompt string, a config setting can't be included in a
defconfig. Give CONFIG_SND_SOC_ICS43432 a prompt so that Pi soundcards
can use the driver.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

Add IQaudIO Sound Card support for Raspberry Pi

Set a limit of 0dB on Digital Volume Control

The main volume control in the PCM512x DAC has a range up to
+24dB. This is dangerously loud and can potentially cause massive
clipping in the output stages. Therefore this sets a sensible
limit of 0dB for this control.

Allow up to 24dB digital gain to be applied when using IQAudIO DAC+

24db_digital_gain DT param can be used to specify that PCM512x
codec "Digital" volume control should not be limited to 0dB gain,
and if specified will allow the full 24dB gain.

Modify IQAudIO DAC+ ASoC driver to set card/dai config from dt

Add the ability to set the card name, dai name and dai stream name, from
dt config.

Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>

IQaudIO: auto-mute for AMP+ and DigiAMP+

IQAudIO amplifier mute via GPIO22. Add dt params for "one-shot" unmute
and auto mute.

Revision 2, auto mute implementing HiassofT suggestion to mute/unmute
using set_bias_level, rather than startup/shutdown....
"By default DAPM waits 5 seconds (pmdown_time) before shutting down
playback streams so a close/stop immediately followed by open/start
doesn't trigger an amp mute+unmute."

Tested on both AMP+ (via DAC+) and DigiAMP+, with both options...

dtoverlay=iqaudio-dacplus,unmute_amp
 "one-shot" unmute when kernel module loads.

dtoverlay=iqaudio-dacplus,auto_mute_amp
 Unmute amp when ALSA device opened by a client. Mute, with 5 second delay
 when ALSA device closed. (Re-opening the device within the 5 second close
 window, will cancel mute.)

Revision 4, using gpiod.

Revision 5, clean-up formatting before adding mute code.
 - Convert tab plus 4 space formatting to 2x tab
 - Remove '// NOT USED' commented code

Revision 6, don't attempt to "one-shot" unmute amp, unless card is
successfully registered.

Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>

ASoC: iqaudio-dac: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: iqaudio-dac: use modern dai_link style

Signed-off-by: Matthias Reichl <hias@horus.com>

Added support for HiFiBerry DAC+

The driver is based on the HiFiBerry DAC driver. However HiFiBerry DAC+ uses
a different codec chip (PCM5122), therefore a new driver is necessary.

Add support for the HiFiBerry DAC+ Pro.

The HiFiBerry DAC+ and DAC+ Pro products both use the existing bcm sound driver with the DAC+ Pro having a special clock device driver representing the two high precision oscillators.

An addition bug fix is included for the PCM512x codec where by the physical size of the sample frame is used in the calculation of the LRCK divisor as it was found to be wrong when using 24-bit depth sample contained in a little endian 4-byte sample frame.

Limit PCM512x "Digital" gain to 0dB by default with HiFiBerry DAC+

24db_digital_gain DT param can be used to specify that PCM512x
codec "Digital" volume control should not be limited to 0dB gain,
and if specified will allow the full 24dB gain.

Add dt param to force HiFiBerry DAC+ Pro into slave mode

"dtoverlay=hifiberry-dacplus,slave"

Add 'slave' param to use HiFiBerry DAC+ Pro in slave mode,
with Pi as master for bit and frame clock.

Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>

Fixed a bug when using 352.8kHz sample rate

Signed-off-by: Daniel Matuschek <daniel@hifiberry.com>

ASoC: pcm512x: revert downstream changes

This partially reverts commit 185ea05465aac8bf02a0d2b2f4289d42c72870b7
which was added by https://github.com/raspberrypi/linux/pull/1152

The downstream pcm512x changes caused a regression, it broke normal
use of the 24bit format with the codec, eg when using simple-audio-card.

The actual bug with 24bit playback is the incorrect usage
of physical_width in various drivers in the downstream tree
which causes 24bit data to be transmitted with 32 clock
cycles. So it's not the pcm512x that needs fixing, it's the
soundcard drivers.

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: hifiberry_dacplus: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: hifiberry_dacplus: transmit S24_LE with 64 BCLK cycles

Signed-off-by: Matthias Reichl <hias@horus.com>

hifiberry_dacplus: switch to snd_soc_dai_set_bclk_ratio

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: hifiberry_dacplus: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

Add driver for rpi-proto

Forward port of 3.10.x driver from https://github.com/koalo
We are using a custom board and would like to use rpi 3.18.x
kernel. Patch works fine for our embedded system.

URL to the audio chip:
http://www.mikroe.com/add-on-boards/audio-voice/audio-codec-proto/

Playback tested with devicetree enabled.

Signed-off-by: Waldemar Brodkorb <wbrodkorb@conet.de>

ASoC: rpi-proto: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

Add Support for JustBoom Audio boards

justboom-dac: Adjust for ALSA API change

As of 4.4, snd_soc_limit_volume now takes a struct snd_soc_card *
rather than a struct snd_soc_codec *.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

ASoC: justboom-dac: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Also remove hw_params as it's no longer needed.

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: justboom-dac: use modern dai_link style

Signed-off-by: Matthias Reichl <hias@horus.com>

New AudioInjector.net Pi soundcard with low jitter audio in and out.

Contains the sound/soc/bcm ALSA machine driver and necessary alterations to the Kconfig and Makefile.
Adds the dts overlay and updates the Makefile and README.
Updates the relevant defconfig files to enable building for the Raspberry Pi.
Thanks to Phil Elwell (pelwell) for the review, simple-card concepts and discussion. Thanks to Clive Messer for overlay naming suggestions.

Added support for headphones, microphone and bclk_ratio settings.

This patch adds headphone and microphone capability to the Audio Injector sound card. The patch also sets the bit clock ratio for use in the bcm2835-i2s driver. The bcm2835-i2s can't handle an 8 kHz sample rate when the bit clock is at 12 MHz because its register is only 10 bits wide which can't represent the ch2 offset of 1508. For that reason, the rate constraint is added.

ASoC: audioinjector-pi-soundcard: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

New driver for RRA DigiDAC1 soundcard using WM8741 + WM8804

ASoC: digidac1-soundcard: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

Add support for Dion Audio LOCO DAC-AMP HAT

Using dedicated machine driver and pcm5102a codec driver.

Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>

ASoC: dionaudio_loco: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

Allo Piano DAC boards: Initial 2 channel (stereo) support (#1645)

Add initial 2 channel (stereo) support for Allo Piano DAC (2.0/2.1) boards,
using allo-piano-dac-pcm512x-audio overlay and allo-piano-dac ALSA ASoC
machine driver.

NB. The initial support is 2 channel (stereo) ONLY!
(The Piano DAC 2.1 will only support 2 channel (stereo) left/right output,
 pending an update to the upstream pcm512x codec driver, which will have
 to be submitted via upstream. With the initial downstream support,
 provided by this patch, the Piano DAC 2.1 subwoofer outputs will
 not function.)

Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Signed-off-by: Clive Messer <clive.messer@digitaldreamtime.co.uk>
Tested-by: Clive Messer <clive.messer@digitaldreamtime.co.uk>

ASoC: allo-piano-dac: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Also remove hw_params and ops as they are no longer needed.

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: allo-piano-dac: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

Add support for Allo Piano DAC 2.1 plus add-on board for Raspberry Pi.

The Piano DAC 2.1 has support for 4 channels with subwoofer.

Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Reviewed-by: Vijay Kumar B. <vijaykumar@zilogic.com>
Reviewed-by: Raashid Muhammed <raashidmuhammed@zilogic.com>

Add clock changes and mute gpios (#1938)

Also improve code style and adhere to ALSA coding conventions.

Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Reviewed-by: Vijay Kumar B. <vijaykumar@zilogic.com>
Reviewed-by: Raashid Muhammed <raashidmuhammed@zilogic.com>

PianoPlus: Dual Mono & Dual Stereo features added (#2069)

allo-piano-dac-plus: Master volume added + fixes

Master volume added, which controls both DACs volumes.

See: https://github.com/raspberrypi/linux/pull/2149

Also fix initial max volume, default mode value, and unmute.

Signed-off-by: allocom <sparky-dev@allo.com>

ASoC: allo-piano-dac-plus: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Signed-off-by: Matthias Reichl <hias@horus.com>

sound: bcm: Fix memset dereference warning

This warning appears with GCC 6.4.0 from toolchains.bootlin.com:

../sound/soc/bcm/allo-piano-dac-plus.c: In function ‘snd_allo_piano_dac_init’:
../sound/soc/bcm/allo-piano-dac-plus.c:711:30: warning: argument to ‘sizeof’ in ‘memset’ call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess]
  memset(glb_ptr, 0x00, sizeof(glb_ptr));
                              ^

Suggested-by: Phil Elwell <phil@raspberrypi.org>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>

ASoC: allo-piano-dac-plus: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

Add support for Allo Boss DAC add-on board for Raspberry Pi. (#1924)

Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Reviewed-by: Deepak <deepak@zilogic.com>
Reviewed-by: BabuSubashChandar <babusubashchandar@zilogic.com>

Add support for new clock rate and mute gpios.

Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Reviewed-by: Deepak <deepak@zilogic.com>
Reviewed-by: BabuSubashChandar <babusubashchandar@zilogic.com>

ASoC: allo-boss-dac: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: allo-boss-dac: transmit S24_LE with 64 BCLK cycles

Signed-off-by: Matthias Reichl <hias@horus.com>

allo-boss-dac: switch to snd_soc_dai_set_bclk_ratio

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: allo-boss-dac: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

Support for Blokas Labs pisound board

Pisound dynamic overlay (#1760)

Restructuring pisound-overlay.dts, so it can be loaded and unloaded dynamically using dtoverlay.

Print a logline when the kernel module is removed.

pisound improvements:

* Added a writable sysfs object to enable scripts / user space software
to blink MIDI activity LEDs for variable duration.
* Improved hw_param constraints setting.
* Added compatibility with S16_LE sample format.
* Exposed some simple placeholder volume controls, so the card appears
in volumealsa widget.

Add missing SND_PISOUND selects dependency to SND_RAWMIDI

Without it the Pisound module fails to compile.
See https://github.com/raspberrypi/linux/issues/2366

Updates for Pisound module code:

        * Merged 'Fix a warning in DEBUG builds' (1c8b82b).
        * Updating some strings and copyright information.
        * Fix for handling high load of MIDI input and output.
        * Use dual rate oversampling ratio for 96kHz instead of single
          rate one.

Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io>

Fixing memset call in pisound.c

Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io>

Fix for Pisound's MIDI Input getting blocked for a while in rare cases.

There was a possible race condition which could lead to Input's FIFO queue
to be underflown, causing high amount of processing in the worker thread for
some period of time.

Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io>

Fix for Pisound kernel module in Real Time kernel configuration.

When handler of data_available interrupt is fired, queue_work ends up
getting called and it can block on a spin lock which is not allowed in
interrupt context. The fix was to run the handler from a thread context
instead.

Pisound: Remove spinlock usage around spi_sync

ASoC: pisound: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

ASoC: pisound: fix the parameter for spi_device_match

Signed-off-by: Hui Wang <hui.wang@canonical.com>

ASoC: Add driver for Cirrus Logic Audio Card

Note: due to problems with deferred probing of regulators
the following softdep should be added to a modprobe.d file

softdep arizona-spi pre: arizona-ldo1

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: rpi-cirrus: use modern dai_link style

Signed-off-by: Matthias Reichl <hias@horus.com>

sound: Support for Dion Audio LOCO-V2 DAC-AMP HAT

Signed-off-by: Miquel Blauw <info@dionaudio.nl>

ASoC: dionaudio_loco-v2: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Also remove hw_params and ops as they are no longer needed.

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: dionaudio_loco-v2: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

Add support for Fe-Pi audio sound card. (#1867)

Fe-Pi Audio Sound Card is based on NXP SGTL5000 codec.
Mechanical specification of the board is the same the Raspberry Pi Zero.
3.5mm jacks for Headphone/Mic, Line In, and Line Out.

Signed-off-by: Henry Kupis <fe-pi@cox.net>

ASoC: fe-pi-audio: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

Add support for the AudioInjector.net Octo sound card

AudioInjector Octo: sample rates, regulators, reset

This patch adds new sample rates to the Audioinjector Octo sound card. The
new supported rates are (in kHz) :
96, 48, 32, 24, 16, 8, 88.2, 44.1, 29.4, 22.05, 14.7

Reference the bcm270x DT regulators in the overlay.

This patch adds a reset GPIO for the AudioInjector.net octo sound card.

Audioinjector octo : Make the playback and capture symmetric

This patch ensures that the sample rate and channel count of the audioinjector
octo sound card are symmetric.

audioinjector-octo: Add continuous clock feature

By user request, add a switch to prevent the clocks being stopped when
the stream is paused, stopped or shutdown. Provide access to the switch
by adding a 'non-stop-clocks' parameter to the audioinjector-addons
overlay.

See: https://github.com/raspberrypi/linux/issues/2409

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

sound: Fixes for audioinjector-octo under 4.19

1. Move the DT alias declaration to the I2C shim in the cases
where the shim is enabled. This works around a problem caused by a
4.19 commit [1] that generates DT/OF uevents for I2C drivers.

2. Fix the diagnostics in an error path of the soundcard driver to
correctly identify the reason for the failure to load.

3. Move the declaration of the clock node in the overlay outside
the I2C node to avoid warnings.

4. Sort the overlay nodes so that dependencies are only to earlier
fragments, in an attempt to get runtime dtoverlay application to
work (it still doesn't...)

See: https://github.com/Audio-Injector/Octo/issues/14
Signed-off-by: Phil Elwell <phil@raspberrypi.org>

[1] af503716ac14 ("i2c: core: report OF style module alias for devices registered via OF")

ASoC: audioinjector-octo-soundcard: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

Driver support for Google voiceHAT soundcard.

ASoC: googlevoicehat-codec: Use correct device when grabbing GPIO

The fixup for the VoiceHAT in 4.18 incorrectly tried to find the
sdmode GPIO pin under the card device, not the codec device.
This failed, and therefore caused the device probe to fail.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>

ASoC: googlevoicehat-codec: Reformat for kernel coding standards

Fix all whitespace, indentation, and bracing errors.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>

ASoC: googlevoicehat-codec: Make driver function structure const

Make voicehat_component_driver a const structure.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>

ASoC: googlevoicehat-codec: Only convert from ms to jiffies once

Minor optimisation and allows to become checkpatch clean.
A msec value is read out of DT or from a define, and convert once to
jiffies, rather than every time that it is used.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>

Driver and overlay for Allo Katana DAC

Allo Katana DAC: Updated default values

Signed-off-by: Jaikumar <jaikumar@cem-solutions.com>

Added mute stream func

Signed-off-by: Jaikumar <jaikumar@cem-solutions.net>

codecs: Correct Katana minimum volume

Update Katana minimum volume to get the exact 0.5 dB value in each step.

Signed-off-by: Sudeep Kumar <sudeepkumar@cem-solutions.net>

ASoC: Add generic RPI driver for simple soundcards.

The RPI simple sound card driver provides a generic ALSA SOC card driver
supporting a variety of Pi HAT soundcards. The intention is to avoid
the duplication of code for cards that can't be fully supported by
the soc simple/graph cards but are otherwise almost identical.

This initial commit adds support for the ADAU1977 ADC, Google VoiceHat,
HifiBerry AMP, HifiBerry DAC and RPI DAC.

Signed-off-by: Tim Gover <tim.gover@raspberrypi.org>

ASoC: Use correct card name in rpi-simple driver

Use the specific card name from drvdata instead of the snd_rpi_simple

rpi-simple-soundcard: Use nicer driver name "RPi-simple"

Rename the driver from "RPI simple soundcard" to "RPi-simple" so that
the driver name won't be mangled allowing to be used unaltered as the
card conf filename.

ASoC: rpi-simple-soundcard: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

ASoC: Add Kconfig and Makefile for sound/soc/bcm

Signed-off-by: popcornmix <popcornmix@gmail.com>

ASoC: Create a generic Pi Hat WM8804 driver

Reduce the amount of duplicated code by creating a generic driver for
Pi Hat digi cards using the WM8804 codec.

This replaces the
Allo DigiOne, Hifiberry Digi/Pro, JustBoom Digi and IQAudIO Digi
dedicate soundcard drivers with a generic driver.

There are no significant changes to the runtime behavior of the drivers
and end users should not have to change any configuration settings
after upgrading.

Minor changes
* Check the return value of snd_soc_component_update_bits
* Added some pr_debug tracing
* Various checkpatch tidyups
* Updated allodigi-one to use use 128FS at > 96 Khz. This appears to
  be an omission in the original driver code so followed the Hifiberry
  DAC driver approach.

ASoC: rpi-wm8804-soundcard: use modern dai_link style

Signed-off-by: Matthias Reichl <hias@horus.com>

rpi-wm8804-soundcard: drop PWRDN register writes

Since kernel 4.0 the PWRDN register bits are under DAPM
control from the wm8804 driver.

Drop code that modifies that register to avoid interfering
with DAPM.

Signed-off-by: Matthias Reichl <hias@horus.com>

rpi-wm8804-soundcard: configure wm8804 clocks only on rate change

This should avoid clicks when stopping and immediately afterwards
starting a stream with the same samplerate as before.

Signed-off-by: Matthias Reichl <hias@horus.com>

rpi-wm8804-soundcard: Fixed MCLKDIV for Allo Digione

The Allo Digione board wants a fixed MCLKDIV of 256.

See: https://github.com/raspberrypi/linux/issues/3296

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

ASoC: Add support for AudioSense-Pi add-on soundcard

AudioSense-Pi is a RPi HAT based on a TI's TLV320AIC32x4 stereo codec

This hardware provides multiple audio I/O capabilities to the RPi.
The codec connects to the RPi's SoC through the I2S Bus.

The following devices can be connected through a 3.5mm jack
        1. Line-In: Plain old audio in from mobile phones, PCs, etc.,
        2. Mic-In: Connect a microphone
        3. Line-Out: Connect the output to a speaker
        4. Headphones: Connect a Headphone w or w/o microphones

Multiple Inputs:
        It supports the following combinations
        1. Two stereo Line-Inputs and a microphone
        2. One stereo Line-Input and two microphones
        3. Two stereo Line-Inputs, a microphone and
                one mono line-input (with h/w hack)
        4. One stereo Line-Input, two microphones and
                one mono line-input (with h/w hack)

Multiple Outputs:
        Audio output can be routed to the headphones or
                speakers (with additional hardware)

Signed-off-by: b-ak <anur.bhargav@gmail.com>

ASoC: audiosense-pi: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

Added driver for the HiFiBerry DAC+ ADC (#2694)

Signed-off-by: Daniel Matuschek <daniel@hifiberry.com>

hifiberry_dacplusadc: switch to snd_soc_dai_set_bclk_ratio

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: hifiberry_dacplusadc: fix DAI link setup

The driver only defines a single DAI link and the code that tries
to setup the second (non-existent) DAI link looks wrong - using dmic
as a CPU/platform driver doesn't make any sense.

The DT overlay doesn't define a dmic property, so the code was never
executed (otherwise it would have resulted in a memory corruption).

So drop the offending code to prevent issues if a dmic property
should be added to the DT overlay.

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: hifiberry_dacplusadc: use modern dai_link style

Signed-off-by: Matthias Reichl <hias@horus.com>

Audiophonics I-Sabre 9038Q2M DAC driver

Signed-off-by: Audiophonics <contact@audiophonics.fr>

ASoC: i-sabre-q2m: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

Added IQaudIO Pi-Codec board support (#2969)

Add support for the IQaudIO Pi-Codec board.

Signed-off-by: Gordon <gordon@iqaudio.com>

Fixed 48k timing issue

ASoC: iqaudio-codec: use modern dai_link style

Signed-off-by: Hui Wang <hui.wang@canonical.com>

adds the Hifiberry DAC+ADC PRO version

This adds the driver for the DAC+ADC PRO version of the Hifiberry soundcard with software controlled PCM1863 ADC
Signed-off-by: Joerg Schambacher joerg@i2audio.com

Add Hifiberry DAC+DSP soundcard driver (#3224)

Adds the driver for the Hifiberry DAC+DSP. It supports capture and
playback depending on the DSP firmware.

Signed-off-by: Joerg Schambacher <joerg@i2audio.com>

Allow simultaneous use of JustBoom DAC and Digi

Signed-off-by: Johannes Krude <johannes@krude.de>

Pisound: MIDI communication fixes for scaled down CPU.

* Increased maximum SPI communication speed to avoid running too slow
  when the CPU is scaled down and losing MIDI data.

* Keep track of buffer usage in millibytes for higher precision.

Signed-off-by: Giedrius Trainavičius <giedrius@blokas.io>

sound: Add the HiFiBerry DAC+HD version

This adds the driver for the DAC+HD version supporting HiFiBerry's
PCM179x based DACs. It also adds PLL control for clock generation.

Signed-off-by: Joerg Schambacher <joerg@i2audio.com>

Fix master mode settings of HiFiBerry DAC+ADC PRO card (#3424)

This patch fixes the board DAI setting when in master-mode.
Wrong setting could have caused random pop noise.

Signed-off-by: Joerg Schambacher <joerg@i2audio.com>

adds LED OFF feature to HiFiBerry DAC+ADC PRO sound card

This adds a DT overlay parameter 'leds_off' which allows
to switch off the onboard activity LEDs at all times
which has been requested by some users.

Signed-off-by: Joerg Schambacher <joerg@i2audio.com>

adds LED OFF feature to HiFiBerry DAC+ADC sound card

This adds a DT overlay parameter 'leds_off' which allows
to switch off the onboard activity LEDs at all times
which has been requested by some users.

Signed-off-by: Joerg Schambacher <joerg@i2audio.com>

adds LED OFF feature to HiFiBerry DAC+/DAC+PRO sound cards

This adds a DT overlay parameter 'leds_off' which allows
to switch off the onboard activity LEDs at all times
which has been requested by some users.

Signed-off-by: Joerg Schambacher <joerg@i2audio.com>

pisound: Added reading Pisound board hardware revision and exposing it (#3425)

pisound: Added reading Pisound board hardware revision and exposing it in kernel log and sysfs file:

/sys/kernel/pisound/hw_version

Signed-off-by: Giedrius <giedrius@blokas.io>

Added driver for HiFiBerry Amp amplifier add-on board

The driver contains a low-level hardware driver for the TAS5713 and the
drivers for the Raspberry Pi I2S subsystem.

TAS5713: return error if initialisation fails

Existing TAS5713 driver logs errors during initialisation, but does not return
an error code. Therefore even if initialisation fails, the driver will still be
loaded, but won't work. This patch fixes this. I2C communication error will now
reported correctly by a non-zero return code.

HiFiBerry Amp: fix device-tree problems

Some code to load the driver based on device-tree-overlays was missing. This is added by this patch.

According to 5713 pdf doc CLOCK_CTRL is a readonly status register, and it behaves so. Remove useless setting

sound: pcm512x-codec: Adding 352.8kHz samplerate support

sound/soc: only first codec is master in multicodec setup

When using multiple codecs, at most one codec should generate the master
clock. All codecs except the first are therefore configured for slave
mode.

Signed-off-by: Johannes Krude <johannes@krude.de>

ASoC: Fix snd_soc_get_pcm_runtime usage

Commit [1] changed the snd_soc_get_pcm_runtime to take a dai_link
pointer instead of a string. Patch up the downstream drivers to use
the modified API.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>

[1] 4468189ff307 ("ASoC: soc-core: find rtd via dai_link pointer at snd_soc_get_pcm_runtime()")

Add support for the AudioInjector.net Isolated sound card

This patch adds support for the Audio Injector Isolated sound card.

Signed-off-by: Matt Flax <flatmax@flatmax.org>

Add support for merus-amp soundcard and ma120x0p codec

Add 96KHz rate support to MA120X0P codec and make enable and mute gpio
pins optional.

Signed-off-by: AMuszkat <ariel.muszkat@gmail.com>

Fixes a problem with clock settings of HiFiBerry DAC+ADC PRO (#3545)

This patch fixes a problem of the re-calculation of
i2s-clock and -parameter settings when only the ADC is activated.

Signed-off-by: Joerg Schambacher <joerg@i2audio.com>

configs: Enable the AD193x codecs

See: https://github.com/raspberrypi/linux/issues/2850

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

Switch to snd_soc_dai_set_bclk_ratio
Replaces obsolete function snd_soc_dai_set_tdm_slot

Signed-off-by: Joerg Schambacher <joerg@i2audio.com>

Enhances the DAC+ driver to control the optional headphone amplifier

Probes on the I2C bus for TPA6130A2, if successful, it sets DT-parameter
'status' from 'disabled' to 'okay' using change_sets to enable
the headphone control.

Signed-off-by: Joerg Schambacher joerg@i2audio.com

Update Allo Piano Dac Driver

Add unique names to the individual dac coded drivers
Remove some of the codec controls that are not used.

Signed-off-by: Paul Hermann <paul@picoreplayer.org>

Fixes an onboard clock detection problem of the PRO versions

Increasing the sleep time after clock selection to 3-4ms
allows the correct detection of all combinations of DAC+ Pro
and DAC+ADC Pro sound cards and the various PI revisions.

Signed-off-by: Joerg Schambacher <joerg@hifiberry.com>

ASoC:ma120x0p: Increase maximum sample rate to 192KHz

Change the maximum sample rate for the amplifier to
192KHz as given in the Infineon specification.

Signed-off-by: Joerg Schambacher <joerg@hifiberry.com>

ASoC: ma120x0p: Remove unnecessary const specifier

Clang warns:

  sound/soc/codecs/ma120x0p.c:891:14: warning: duplicate 'const' declaration specifier [-Wduplicate-decl-specifier]
  static const SOC_VALUE_ENUM_SINGLE_DECL(pwr_mode_ctrl,
               ^
  ./include/sound/soc.h:362:2: note: expanded from macro 'SOC_VALUE_ENUM_SINGLE_DECL'
          SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues)
          ^
  ./include/sound/soc.h:359:2: note: expanded from macro 'SOC_VALUE_ENUM_DOUBLE_DECL'
          const struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \
          ^
  1 warning generated.

SOC_VALUE_ENUM_DOUBLE_DECL already has a const specifier. Remove the duplicate
const to clean up the warning.

Fixes: 42444979e710 ("Add support for all the downstream rpi sound card drivers")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>

ASoC: bcm: allo-piano-dac-plus: Remove unnecessary const specifiers

Clang warns:

  sound/soc/bcm/allo-piano-dac-plus.c:66:14: warning: duplicate 'const' declaration specifier [-Wduplicate-decl-specifier]
  static const SOC_ENUM_SINGLE_DECL(allo_piano_mode_enum,
               ^
  ./include/sound/soc.h:355:2: note: expanded from macro 'SOC_ENUM_SINGLE_DECL'
          SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
          ^
  ./include/sound/soc.h:352:2: note: expanded from macro 'SOC_ENUM_DOUBLE_DECL'
          const struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
          ^
  sound/soc/bcm/allo-piano-dac-plus.c:75:14: warning: duplicate 'const' declaration specifier [-Wduplicate-decl-specifier]
  static const SOC_ENUM_SINGLE_DECL(allo_piano_dual_mode_enum,
               ^
  ./include/sound/soc.h:355:2: note: expanded from macro 'SOC_ENUM_SINGLE_DECL'
          SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
          ^
  ./include/sound/soc.h:352:2: note: expanded from macro 'SOC_ENUM_DOUBLE_DECL'
          const struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
          ^
  sound/soc/bcm/allo-piano-dac-plus.c:96:14: warning: duplicate 'const' declaration specifier [-Wduplicate-decl-specifier]
  static const SOC_ENUM_SINGLE_DECL(allo_piano_enum,
               ^
  ./include/sound/soc.h:355:2: note: expanded from macro 'SOC_ENUM_SINGLE_DECL'
          SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
          ^
  ./include/sound/soc.h:352:2: note: expanded from macro 'SOC_ENUM_DOUBLE_DECL'
          const struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
          ^
  3 warnings generated.

SOC_VALUE_ENUM_DOUBLE_DECL already has a const specifier. Remove the duplicate
const specifiers to clean up the warnings.

Fixes: 42444979e710 ("Add support for all the downstream rpi sound card drivers")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>

rpi-simple-soundcard: Add Dion Audio KIWI streamer

Signed-off-by: Miquel Blauw <miquelblauw@hotmail.com>

rpi-simple-soundcard: adds definitions for the HiFiBerry AMP3 card

Uses Infineon MA120x0 amplifier and supports full sample rate of 192ksps.

Signed-off-by: Joerg Schambacher <joerg@hifiberry.com>

sound: soc: bcm: Added Sound card driver for Dacberry400 Audio card for Raspberry Pi 400

Added Sound card driver for DACberry400 Audio card.

Signed-off-by: Ashish Vara <ashishhvara@gmail.com>
---
 .../devicetree/bindings/vendor-prefixes.txt   |  463 ++++++
 .../devicetree/bindings/vendor-prefixes.yaml  |    2 +
 drivers/clk/Kconfig                           |    6 +
 drivers/clk/Makefile                          |    3 +
 drivers/clk/clk-allo-dac.c                    |  161 ++
 drivers/clk/clk-hifiberry-dachd.c             |  332 ++++
 drivers/clk/clk-hifiberry-dacpro.c            |  160 ++
 sound/soc/bcm/Kconfig                         |  305 ++++
 sound/soc/bcm/Makefile                        |   71 +-
 sound/soc/bcm/allo-boss-dac.c                 |  457 ++++++
 sound/soc/bcm/allo-boss2-dac.c                | 1131 ++++++++++++++
 sound/soc/bcm/allo-katana-codec.c             |  387 +++++
 sound/soc/bcm/allo-piano-dac-plus.c           | 1064 +++++++++++++
 sound/soc/bcm/allo-piano-dac.c                |  122 ++
 .../bcm/audioinjector-isolated-soundcard.c    |  183 +++
 sound/soc/bcm/audioinjector-octo-soundcard.c  |  346 +++++
 sound/soc/bcm/audioinjector-pi-soundcard.c    |  189 +++
 sound/soc/bcm/audiosense-pi.c                 |  248 +++
 sound/soc/bcm/chipdip-dac.c                   |  275 ++++
 sound/soc/bcm/dacberry400.c                   |  259 ++++
 sound/soc/bcm/digidac1-soundcard.c            |  421 +++++
 sound/soc/bcm/dionaudio_loco-v2.c             |  117 ++
 sound/soc/bcm/dionaudio_loco.c                |  117 ++
 sound/soc/bcm/fe-pi-audio.c                   |  154 ++
 sound/soc/bcm/googlevoicehat-codec.c          |  214 +++
 sound/soc/bcm/hifiberry_dacplus.c             |  527 +++++++
 sound/soc/bcm/hifiberry_dacplusadc.c          |  398 +++++
 sound/soc/bcm/hifiberry_dacplusadcpro.c       |  605 ++++++++
 sound/soc/bcm/hifiberry_dacplusdsp.c          |   90 ++
 sound/soc/bcm/hifiberry_dacplushd.c           |  238 +++
 sound/soc/bcm/i-sabre-q2m.c                   |  159 ++
 sound/soc/bcm/iqaudio-codec.c                 |  275 ++++
 sound/soc/bcm/iqaudio-dac.c                   |  224 +++
 sound/soc/bcm/justboom-both.c                 |  267 ++++
 sound/soc/bcm/justboom-dac.c                  |  147 ++
 sound/soc/bcm/pifi-40.c                       |  284 ++++
 sound/soc/bcm/pisound.c                       | 1241 +++++++++++++++
 sound/soc/bcm/rpi-cirrus.c                    | 1025 ++++++++++++
 sound/soc/bcm/rpi-proto.c                     |  147 ++
 sound/soc/bcm/rpi-simple-soundcard.c          |  487 ++++++
 sound/soc/bcm/rpi-wm8804-soundcard.c          |  410 +++++
 sound/soc/codecs/Kconfig                      |   26 +-
 sound/soc/codecs/Makefile                     |    8 +
 sound/soc/codecs/cs42xx8-i2c.c                |    9 +-
 sound/soc/codecs/cs42xx8.c                    |    2 +
 sound/soc/codecs/i-sabre-codec.c              |  390 +++++
 sound/soc/codecs/i-sabre-codec.h              |   42 +
 sound/soc/codecs/ma120x0p.c                   | 1381 +++++++++++++++++
 sound/soc/codecs/pcm1794a.c                   |   69 +
 sound/soc/codecs/pcm512x.c                    |    2 +-
 sound/soc/codecs/tas5713.c                    |  361 +++++
 sound/soc/codecs/tas5713.h                    |  210 +++
 sound/soc/soc-core.c                          |   10 +-
 sound/usb/card.c                              |    8 +-
 sound/usb/quirks.c                            |    2 +
 55 files changed, 16224 insertions(+), 7 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/vendor-prefixes.txt
 create mode 100644 drivers/clk/clk-allo-dac.c
 create mode 100644 drivers/clk/clk-hifiberry-dachd.c
 create mode 100644 drivers/clk/clk-hifiberry-dacpro.c
 create mode 100644 sound/soc/bcm/allo-boss-dac.c
 create mode 100644 sound/soc/bcm/allo-boss2-dac.c
 create mode 100644 sound/soc/bcm/allo-katana-codec.c
 create mode 100644 sound/soc/bcm/allo-piano-dac-plus.c
 create mode 100644 sound/soc/bcm/allo-piano-dac.c
 create mode 100644 sound/soc/bcm/audioinjector-isolated-soundcard.c
 create mode 100644 sound/soc/bcm/audioinjector-octo-soundcard.c
 create mode 100644 sound/soc/bcm/audioinjector-pi-soundcard.c
 create mode 100644 sound/soc/bcm/audiosense-pi.c
 create mode 100644 sound/soc/bcm/chipdip-dac.c
 create mode 100644 sound/soc/bcm/dacberry400.c
 create mode 100644 sound/soc/bcm/digidac1-soundcard.c
 create mode 100644 sound/soc/bcm/dionaudio_loco-v2.c
 create mode 100644 sound/soc/bcm/dionaudio_loco.c
 create mode 100644 sound/soc/bcm/fe-pi-audio.c
 create mode 100644 sound/soc/bcm/googlevoicehat-codec.c
 create mode 100644 sound/soc/bcm/hifiberry_dacplus.c
 create mode 100644 sound/soc/bcm/hifiberry_dacplusadc.c
 create mode 100644 sound/soc/bcm/hifiberry_dacplusadcpro.c
 create mode 100644 sound/soc/bcm/hifiberry_dacplusdsp.c
 create mode 100644 sound/soc/bcm/hifiberry_dacplushd.c
 create mode 100644 sound/soc/bcm/i-sabre-q2m.c
 create mode 100644 sound/soc/bcm/iqaudio-codec.c
 create mode 100644 sound/soc/bcm/iqaudio-dac.c
 create mode 100644 sound/soc/bcm/justboom-both.c
 create mode 100644 sound/soc/bcm/justboom-dac.c
 create mode 100644 sound/soc/bcm/pifi-40.c
 create mode 100644 sound/soc/bcm/pisound.c
 create mode 100644 sound/soc/bcm/rpi-cirrus.c
 create mode 100644 sound/soc/bcm/rpi-proto.c
 create mode 100644 sound/soc/bcm/rpi-simple-soundcard.c
 create mode 100644 sound/soc/bcm/rpi-wm8804-soundcard.c
 create mode 100644 sound/soc/codecs/i-sabre-codec.c
 create mode 100644 sound/soc/codecs/i-sabre-codec.h
 create mode 100644 sound/soc/codecs/ma120x0p.c
 create mode 100644 sound/soc/codecs/pcm1794a.c
 create mode 100644 sound/soc/codecs/tas5713.c
 create mode 100644 sound/soc/codecs/tas5713.h

--- /dev/null
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -0,0 +1,463 @@
+Device tree binding vendor prefix registry.  Keep list in alphabetical order.
+
+This isn't an exhaustive list, but you should add new prefixes to it before
+using them to avoid name-space collisions.
+
+abilis Abilis Systems
+abracon        Abracon Corporation
+actions        Actions Semiconductor Co., Ltd.
+active-semi    Active-Semi International Inc
+ad     Avionic Design GmbH
+adafruit       Adafruit Industries, LLC
+adapteva       Adapteva, Inc.
+adaptrum       Adaptrum, Inc.
+adh    AD Holdings Plc.
+adi    Analog Devices, Inc.
+advantech      Advantech Corporation
+aeroflexgaisler        Aeroflex Gaisler AB
+al     Annapurna Labs
+allo   Allo.com
+allwinner      Allwinner Technology Co., Ltd.
+alphascale     AlphaScale Integrated Circuits Systems, Inc.
+altr   Altera Corp.
+amarula        Amarula Solutions
+amazon Amazon.com, Inc.
+amcc   Applied Micro Circuits Corporation (APM, formally AMCC)
+amd    Advanced Micro Devices (AMD), Inc.
+amediatech     Shenzhen Amediatech Technology Co., Ltd
+amlogic        Amlogic, Inc.
+ampire Ampire Co., Ltd.
+ams    AMS AG
+amstaos        AMS-Taos Inc.
+analogix       Analogix Semiconductor, Inc.
+andestech      Andes Technology Corporation
+apm    Applied Micro Circuits Corporation (APM)
+aptina Aptina Imaging
+arasan Arasan Chip Systems
+archermind ArcherMind Technology (Nanjing) Co., Ltd.
+arctic Arctic Sand
+aries  Aries Embedded GmbH
+arm    ARM Ltd.
+armadeus       ARMadeus Systems SARL
+arrow  Arrow Electronics
+artesyn        Artesyn Embedded Technologies Inc.
+asahi-kasei    Asahi Kasei Corp.
+aspeed ASPEED Technology Inc.
+asus   AsusTek Computer Inc.
+atlas  Atlas Scientific LLC
+atmel  Atmel Corporation
+auo    AU Optronics Corporation
+auvidea Auvidea GmbH
+avago  Avago Technologies
+avia   avia semiconductor
+avic   Shanghai AVIC Optoelectronics Co., Ltd.
+avnet  Avnet, Inc.
+axentia        Axentia Technologies AB
+axis   Axis Communications AB
+bananapi BIPAI KEJI LIMITED
+bhf    Beckhoff Automation GmbH & Co. KG
+bitmain        Bitmain Technologies
+blokaslabs     Vilniaus Blokas UAB
+boe    BOE Technology Group Co., Ltd.
+bosch  Bosch Sensortec GmbH
+boundary       Boundary Devices Inc.
+brcm   Broadcom Corporation
+buffalo        Buffalo, Inc.
+bticino Bticino International
+calxeda        Calxeda
+capella        Capella Microsystems, Inc
+cascoda        Cascoda, Ltd.
+catalyst       Catalyst Semiconductor, Inc.
+cavium Cavium, Inc.
+cdns   Cadence Design Systems Inc.
+cdtech CDTech(H.K.) Electronics Limited
+ceva   Ceva, Inc.
+chipidea       Chipidea, Inc
+chipone                ChipOne
+chipspark      ChipSPARK
+chrp   Common Hardware Reference Platform
+chunghwa       Chunghwa Picture Tubes Ltd.
+ciaa   Computadora Industrial Abierta Argentina
+cirrus Cirrus Logic, Inc.
+cloudengines   Cloud Engines, Inc.
+cnm    Chips&Media, Inc.
+cnxt   Conexant Systems, Inc.
+compulab       CompuLab Ltd.
+cortina        Cortina Systems, Inc.
+cosmic Cosmic Circuits
+crane  Crane Connectivity Solutions
+creative       Creative Technology Ltd
+crystalfontz   Crystalfontz America, Inc.
+csky   Hangzhou C-SKY Microsystems Co., Ltd
+cubietech      Cubietech, Ltd.
+cypress        Cypress Semiconductor Corporation
+cznic  CZ.NIC, z.s.p.o.
+dallas Maxim Integrated Products (formerly Dallas Semiconductor)
+dataimage      DataImage, Inc.
+davicom        DAVICOM Semiconductor, Inc.
+delta  Delta Electronics, Inc.
+denx   Denx Software Engineering
+devantech      Devantech, Ltd.
+dh     DH electronics GmbH
+digi   Digi International Inc.
+digilent       Diglent, Inc.
+dioo   Dioo Microcircuit Co., Ltd
+dlc    DLC Display Co., Ltd.
+dlg    Dialog Semiconductor
+dlink  D-Link Corporation
+dmo    Data Modul AG
+domintech      Domintech Co., Ltd.
+dongwoon       Dongwoon Anatech
+dptechnics     DPTechnics
+dragino        Dragino Technology Co., Limited
+ea     Embedded Artists AB
+ebs-systart EBS-SYSTART GmbH
+ebv    EBV Elektronik
+eckelmann      Eckelmann AG
+edt    Emerging Display Technologies
+eeti   eGalax_eMPIA Technology Inc
+elan   Elan Microelectronic Corp.
+elgin  Elgin S/A.
+embest Shenzhen Embest Technology Co., Ltd.
+emlid  Emlid, Ltd.
+emmicro        EM Microelectronic
+emtrion        emtrion GmbH
+endless        Endless Mobile, Inc.
+energymicro    Silicon Laboratories (formerly Energy Micro AS)
+engicam        Engicam S.r.l.
+epcos  EPCOS AG
+epfl   Ecole Polytechnique Fédérale de Lausanne
+epson  Seiko Epson Corp.
+est    ESTeem Wireless Modems
+ettus  NI Ettus Research
+eukrea  Eukréa Electromatique
+everest        Everest Semiconductor Co. Ltd.
+everspin       Everspin Technologies, Inc.
+exar   Exar Corporation
+excito Excito
+ezchip EZchip Semiconductor
+facebook       Facebook
+fairphone      Fairphone B.V.
+faraday        Faraday Technology Corporation
+fastrax        Fastrax Oy
+fcs    Fairchild Semiconductor
+feiyang        Shenzhen Fly Young Technology Co.,LTD.
+firefly        Firefly
+focaltech      FocalTech Systems Co.,Ltd
+friendlyarm    Guangzhou FriendlyARM Computer Tech Co., Ltd
+fsl    Freescale Semiconductor
+fujitsu        Fujitsu Ltd.
+gateworks      Gateworks Corporation
+gcw Game Consoles Worldwide
+ge     General Electric Company
+geekbuying     GeekBuying
+gef    GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+GEFanuc        GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+geniatech      Geniatech, Inc.
+giantec        Giantec Semiconductor, Inc.
+giantplus      Giantplus Technology Co., Ltd.
+globalscale    Globalscale Technologies, Inc.
+globaltop      GlobalTop Technology, Inc.
+gmt    Global Mixed-mode Technology, Inc.
+goodix Shenzhen Huiding Technology Co., Ltd.
+google Google, Inc.
+grinn  Grinn
+grmn   Garmin Limited
+gumstix        Gumstix, Inc.
+gw     Gateworks Corporation
+hannstar       HannStar Display Corporation
+haoyu  Haoyu Microelectronic Co. Ltd.
+hardkernel     Hardkernel Co., Ltd
+hideep HiDeep Inc.
+himax  Himax Technologies, Inc.
+hisilicon      Hisilicon Limited.
+hit    Hitachi Ltd.
+hitex  Hitex Development Tools
+holt   Holt Integrated Circuits, Inc.
+honeywell      Honeywell
+hp     Hewlett Packard
+holtek Holtek Semiconductor, Inc.
+hwacom HwaCom Systems Inc.
+i2se   I2SE GmbH
+ibm    International Business Machines (IBM)
+icplus IC Plus Corp.
+idt    Integrated Device Technologies, Inc.
+ifi    Ingenieurburo Fur Ic-Technologie (I/F/I)
+ilitek ILI Technology Corporation (ILITEK)
+img    Imagination Technologies Ltd.
+infineon Infineon Technologies
+inforce        Inforce Computing
+ingenic        Ingenic Semiconductor
+innolux        Innolux Corporation
+inside-secure  INSIDE Secure
+intel  Intel Corporation
+intercontrol   Inter Control Group
+invensense     InvenSense Inc.
+inversepath    Inverse Path
+iom    Iomega Corporation
+isee   ISEE 2007 S.L.
+isil   Intersil
+issi   Integrated Silicon Solutions Inc.
+itead  ITEAD Intelligent Systems Co.Ltd
+iwave  iWave Systems Technologies Pvt. Ltd.
+jdi    Japan Display Inc.
+jedec  JEDEC Solid State Technology Association
+jianda Jiandangjing Technology Co., Ltd.
+karo   Ka-Ro electronics GmbH
+keithkoep      Keith & Koep GmbH
+keymile        Keymile GmbH
+khadas Khadas
+kiebackpeter    Kieback & Peter GmbH
+kinetic Kinetic Technologies
+kingdisplay    King & Display Technology Co., Ltd.
+kingnovel      Kingnovel Technology Co., Ltd.
+koe    Kaohsiung Opto-Electronics Inc.
+kosagi Sutajio Ko-Usagi PTE Ltd.
+kyo    Kyocera Corporation
+lacie  LaCie
+laird  Laird PLC
+lantiq Lantiq Semiconductor
+lattice        Lattice Semiconductor
+lego   LEGO Systems A/S
+lemaker        Shenzhen LeMaker Technology Co., Ltd.
+lenovo Lenovo Group Ltd.
+lg     LG Corporation
+libretech      Shenzhen Libre Technology Co., Ltd
+licheepi       Lichee Pi
+linaro Linaro Limited
+linksys        Belkin International, Inc. (Linksys)
+linux  Linux-specific binding
+linx   Linx Technologies
+lltc   Linear Technology Corporation
+logicpd        Logic PD, Inc.
+lsi    LSI Corp. (LSI Logic)
+lwn    Liebherr-Werk Nenzing GmbH
+macnica        Macnica Americas
+marvell        Marvell Technology Group Ltd.
+maxim  Maxim Integrated Products
+mbvl   Mobiveil Inc.
+mcube  mCube
+meas   Measurement Specialties
+mediatek       MediaTek Inc.
+megachips      MegaChips
+mele   Shenzhen MeLE Digital Technology Ltd.
+melexis        Melexis N.V.
+melfas MELFAS Inc.
+mellanox       Mellanox Technologies
+memsic MEMSIC Inc.
+merrii Merrii Technology Co., Ltd.
+micrel Micrel Inc.
+microchip      Microchip Technology Inc.
+microcrystal   Micro Crystal AG
+micron Micron Technology Inc.
+mikroe         MikroElektronika d.o.o.
+minix  MINIX Technology Ltd.
+miramems       MiraMEMS Sensing Technology Co., Ltd.
+mitsubishi     Mitsubishi Electric Corporation
+mosaixtech     Mosaix Technologies, Inc.
+motorola       Motorola, Inc.
+moxa   Moxa Inc.
+mpl    MPL AG
+mqmaker        mqmaker Inc.
+mscc   Microsemi Corporation
+msi    Micro-Star International Co. Ltd.
+mti    Imagination Technologies Ltd. (formerly MIPS Technologies Inc.)
+multi-inno     Multi-Inno Technology Co.,Ltd
+mundoreader    Mundo Reader S.L.
+murata Murata Manufacturing Co., Ltd.
+mxicy  Macronix International Co., Ltd.
+myir   MYIR Tech Limited
+national       National Semiconductor
+nec    NEC LCD Technologies, Ltd.
+neonode                Neonode Inc.
+netgear        NETGEAR
+netlogic       Broadcom Corporation (formerly NetLogic Microsystems)
+netron-dy      Netron DY
+netxeon                Shenzhen Netxeon Technology CO., LTD
+nexbox Nexbox
+nextthing      Next Thing Co.
+newhaven       Newhaven Display International
+ni     National Instruments
+nintendo       Nintendo
+nlt    NLT Technologies, Ltd.
+nokia  Nokia
+nordic Nordic Semiconductor
+novtech NovTech, Inc.
+nutsboard      NutsBoard
+nuvoton        Nuvoton Technology Corporation
+nvd    New Vision Display
+nvidia NVIDIA
+nxp    NXP Semiconductors
+okaya  Okaya Electric America, Inc.
+oki    Oki Electric Industry Co., Ltd.
+olimex OLIMEX Ltd.
+olpc   One Laptop Per Child
+onion  Onion Corporation
+onnn   ON Semiconductor Corp.
+ontat  On Tat Industrial Company
+opalkelly      Opal Kelly Incorporated
+opencores      OpenCores.org
+openrisc       OpenRISC.io
+option Option NV
+oranth Shenzhen Oranth Technology Co., Ltd.
+ORCL   Oracle Corporation
+orisetech      Orise Technology
+ortustech      Ortus Technology Co., Ltd.
+ovti   OmniVision Technologies
+oxsemi Oxford Semiconductor, Ltd.
+panasonic      Panasonic Corporation
+parade Parade Technologies Inc.
+pda    Precision Design Associates, Inc.
+pericom        Pericom Technology Inc.
+pervasive      Pervasive Displays, Inc.
+phicomm PHICOMM Co., Ltd.
+phytec PHYTEC Messtechnik GmbH
+picochip       Picochip Ltd
+pine64 Pine64
+pixcir  PIXCIR MICROELECTRONICS Co., Ltd
+plantower Plantower Co., Ltd
+plathome       Plat'Home Co., Ltd.
+plda   PLDA
+plx    Broadcom Corporation (formerly PLX Technology)
+pni    PNI Sensor Corporation
+portwell       Portwell Inc.
+poslab Poslab Technology Co., Ltd.
+powervr        PowerVR (deprecated, use img)
+probox2        PROBOX2 (by W2COMP Co., Ltd.)
+pulsedlight    PulsedLight, Inc
+qca    Qualcomm Atheros, Inc.
+qcom   Qualcomm Technologies, Inc
+qemu   QEMU, a generic and open source machine emulator and virtualizer
+qi     Qi Hardware
+qiaodian       QiaoDian XianShi Corporation
+qnap   QNAP Systems, Inc.
+radxa  Radxa
+raidsonic      RaidSonic Technology GmbH
+ralink Mediatek/Ralink Technology Corp.
+ramtron        Ramtron International
+raspberrypi    Raspberry Pi Foundation
+raydium        Raydium Semiconductor Corp.
+rda    Unisoc Communications, Inc.
+realtek Realtek Semiconductor Corp.
+renesas        Renesas Electronics Corporation
+richtek        Richtek Technology Corporation
+ricoh  Ricoh Co. Ltd.
+rikomagic      Rikomagic Tech Corp. Ltd
+riscv  RISC-V Foundation
+rockchip       Fuzhou Rockchip Electronics Co., Ltd
+rohm   ROHM Semiconductor Co., Ltd
+roofull        Shenzhen Roofull Technology Co, Ltd
+samsung        Samsung Semiconductor
+samtec Samtec/Softing company
+sancloud       Sancloud Ltd
+sandisk        Sandisk Corporation
+sbs    Smart Battery System
+schindler      Schindler
+seagate        Seagate Technology PLC
+semtech        Semtech Corporation
+sensirion      Sensirion AG
+sff    Small Form Factor Committee
+sgd    Solomon Goldentek Display Corporation
+sgx    SGX Sensortech
+sharp  Sharp Corporation
+shimafuji      Shimafuji Electric, Inc.
+si-en  Si-En Technology Ltd.
+sifive SiFive, Inc.
+sigma  Sigma Designs, Inc.
+sii    Seiko Instruments, Inc.
+sil    Silicon Image
+silabs Silicon Laboratories
+silead Silead Inc.
+silergy        Silergy Corp.
+siliconmitus   Silicon Mitus, Inc.
+simtek
+sirf   SiRF Technology, Inc.
+sis    Silicon Integrated Systems Corp.
+sitronix       Sitronix Technology Corporation
+skyworks       Skyworks Solutions, Inc.
+smsc   Standard Microsystems Corporation
+snps   Synopsys, Inc.
+socionext      Socionext Inc.
+solidrun       SolidRun
+solomon        Solomon Systech Limited
+sony   Sony Corporation
+spansion       Spansion Inc.
+sprd   Spreadtrum Communications Inc.
+sst    Silicon Storage Technology, Inc.
+st     STMicroelectronics
+starry Starry Electronic Technology (ShenZhen) Co., LTD
+startek        Startek
+ste    ST-Ericsson
+stericsson     ST-Ericsson
+summit Summit microelectronics
+sunchip        Shenzhen Sunchip Technology Co., Ltd
+SUNW   Sun Microsystems, Inc
+swir   Sierra Wireless
+syna   Synaptics Inc.
+synology       Synology, Inc.
+tbs    TBS Technologies
+tbs-biometrics Touchless Biometric Systems AG
+tcg    Trusted Computing Group
+tcl    Toby Churchill Ltd.
+technexion     TechNexion
+technologic    Technologic Systems
+tempo  Tempo Semiconductor
+techstar       Shenzhen Techstar Electronics Co., Ltd.
+terasic        Terasic Inc.
+thine  THine Electronics, Inc.
+ti     Texas Instruments
+tianma Tianma Micro-electronics Co., Ltd.
+tlm    Trusted Logic Mobility
+tmt    Tecon Microprocessor Technologies, LLC.
+topeet  Topeet
+toradex        Toradex AG
+toshiba        Toshiba Corporation
+toumaz Toumaz
+tpk    TPK U.S.A. LLC
+tplink TP-LINK Technologies Co., Ltd.
+tpo    TPO
+tronfy Tronfy
+tronsmart      Tronsmart
+truly  Truly Semiconductors Limited
+tsd    Theobroma Systems Design und Consulting GmbH
+tyan   Tyan Computer Corporation
+u-blox u-blox
+ucrobotics     uCRobotics
+ubnt   Ubiquiti Networks
+udoo   Udoo
+uniwest        United Western Technologies Corp (UniWest)
+upisemi        uPI Semiconductor Corp.
+urt    United Radiant Technology Corporation
+usi    Universal Scientific Industrial Co., Ltd.
+v3     V3 Semiconductor
+vamrs  Vamrs Ltd.
+variscite      Variscite Ltd.
+via    VIA Technologies, Inc.
+virtio Virtual I/O Device Specification, developed by the OASIS consortium
+vishay Vishay Intertechnology, Inc
+vitesse        Vitesse Semiconductor Corporation
+vivante        Vivante Corporation
+vocore VoCore Studio
+voipac Voipac Technologies s.r.o.
+vot    Vision Optical Technology Co., Ltd.
+wd     Western Digital Corp.
+wetek  WeTek Electronics, limited.
+wexler Wexler
+whwave  Shenzhen whwave Electronics, Inc.
+wi2wi  Wi2Wi, Inc.
+winbond Winbond Electronics corp.
+winstar        Winstar Display Corp.
+wlf    Wolfson Microelectronics
+wm     Wondermedia Technologies, Inc.
+x-powers       X-Powers
+xes    Extreme Engineering Solutions (X-ES)
+xillybus       Xillybus Ltd.
+xlnx   Xilinx
+xunlong        Shenzhen Xunlong Software CO.,Limited
+ysoft  Y Soft Corporation a.s.
+zarlink        Zarlink Semiconductor
+zeitec ZEITEC Semiconductor Co., LTD.
+zidoo  Shenzhen Zidoo Technology Co., Ltd.
+zii    Zodiac Inflight Innovations
+zte    ZTE Corp.
+zyxel  ZyXEL Communications Corp.
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -188,6 +188,8 @@ patternProperties:
     description: Beckhoff Automation GmbH & Co. KG
   "^bitmain,.*":
     description: Bitmain Technologies
+  "^blokaslabs,.*":
+    description: Vilniaus Blokas UAB
   "^blutek,.*":
     description: BluTek Power
   "^boe,.*":
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -99,6 +99,12 @@ config COMMON_CLK_HI655X
          multi-function device has one fixed-rate oscillator, clocked
          at 32KHz.
 
+config COMMON_CLK_HIFIBERRY_DACPLUSHD
+       tristate
+
+config COMMON_CLK_HIFIBERRY_DACPRO
+       tristate
+
 config COMMON_CLK_SCMI
        tristate "Clock driver controlled via SCMI interface"
        depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -19,6 +19,7 @@ endif
 
 # hardware specific clock types
 # please keep this section sorted lexicographically by file path name
+obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC)    += clk-allo-dac.o
 obj-$(CONFIG_COMMON_CLK_APPLE_NCO)     += clk-apple-nco.o
 obj-$(CONFIG_MACH_ASM9260)             += clk-asm9260.o
 obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN)    += clk-axi-clkgen.o
@@ -43,6 +44,8 @@ obj-$(CONFIG_COMMON_CLK_K210)         += clk-k2
 obj-$(CONFIG_LMK04832)                 += clk-lmk04832.o
 obj-$(CONFIG_COMMON_CLK_LAN966X)       += clk-lan966x.o
 obj-$(CONFIG_COMMON_CLK_LOCHNAGAR)     += clk-lochnagar.o
+obj-$(CONFIG_COMMON_CLK_HIFIBERRY_DACPRO)      += clk-hifiberry-dacpro.o
+obj-$(CONFIG_COMMON_CLK_HIFIBERRY_DACPLUSHD)   += clk-hifiberry-dachd.o
 obj-$(CONFIG_COMMON_CLK_MAX77686)      += clk-max77686.o
 obj-$(CONFIG_COMMON_CLK_MAX9485)       += clk-max9485.o
 obj-$(CONFIG_ARCH_MILBEAUT_M10V)       += clk-milbeaut.o
--- /dev/null
+++ b/drivers/clk/clk-allo-dac.c
@@ -0,0 +1,161 @@
+/*
+ * Clock Driver for Allo DAC
+ *
+ * Author:     Baswaraj K <jaikumar@cem-solutions.net>
+ *             Copyright 2016
+ *             based on code by Stuart MacLean
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+
+/* Clock rate of CLK44EN attached to GPIO6 pin */
+#define CLK_44EN_RATE 45158400UL
+/* Clock rate of CLK48EN attached to GPIO3 pin */
+#define CLK_48EN_RATE 49152000UL
+
+/**
+ * struct allo_dac_clk - Common struct to the Allo DAC
+ * @hw: clk_hw for the common clk framework
+ * @mode: 0 => CLK44EN, 1 => CLK48EN
+ */
+struct clk_allo_hw {
+       struct clk_hw hw;
+       uint8_t mode;
+};
+
+#define to_allo_clk(_hw) container_of(_hw, struct clk_allo_hw, hw)
+
+static const struct of_device_id clk_allo_dac_dt_ids[] = {
+       { .compatible = "allo,dac-clk",},
+       { }
+};
+MODULE_DEVICE_TABLE(of, clk_allo_dac_dt_ids);
+
+static unsigned long clk_allo_dac_recalc_rate(struct clk_hw *hw,
+       unsigned long parent_rate)
+{
+       return (to_allo_clk(hw)->mode == 0) ? CLK_44EN_RATE :
+               CLK_48EN_RATE;
+}
+
+static long clk_allo_dac_round_rate(struct clk_hw *hw,
+       unsigned long rate, unsigned long *parent_rate)
+{
+       long actual_rate;
+
+       if (rate <= CLK_44EN_RATE) {
+               actual_rate = (long)CLK_44EN_RATE;
+       } else if (rate >= CLK_48EN_RATE) {
+               actual_rate = (long)CLK_48EN_RATE;
+       } else {
+               long diff44Rate = (long)(rate - CLK_44EN_RATE);
+               long diff48Rate = (long)(CLK_48EN_RATE - rate);
+
+               if (diff44Rate < diff48Rate)
+                       actual_rate = (long)CLK_44EN_RATE;
+               else
+                       actual_rate = (long)CLK_48EN_RATE;
+       }
+       return actual_rate;
+}
+
+
+static int clk_allo_dac_set_rate(struct clk_hw *hw,
+       unsigned long rate, unsigned long parent_rate)
+{
+       unsigned long actual_rate;
+       struct clk_allo_hw *clk = to_allo_clk(hw);
+
+       actual_rate = (unsigned long)clk_allo_dac_round_rate(hw, rate,
+               &parent_rate);
+       clk->mode = (actual_rate == CLK_44EN_RATE) ? 0 : 1;
+       return 0;
+}
+
+
+const struct clk_ops clk_allo_dac_rate_ops = {
+       .recalc_rate = clk_allo_dac_recalc_rate,
+       .round_rate = clk_allo_dac_round_rate,
+       .set_rate = clk_allo_dac_set_rate,
+};
+
+static int clk_allo_dac_probe(struct platform_device *pdev)
+{
+       int ret;
+       struct clk_allo_hw *proclk;
+       struct clk *clk;
+       struct device *dev;
+       struct clk_init_data init;
+
+       dev = &pdev->dev;
+
+       proclk = kzalloc(sizeof(struct clk_allo_hw), GFP_KERNEL);
+       if (!proclk)
+               return -ENOMEM;
+
+       init.name = "clk-allo-dac";
+       init.ops = &clk_allo_dac_rate_ops;
+       init.flags = 0;
+       init.parent_names = NULL;
+       init.num_parents = 0;
+
+       proclk->mode = 0;
+       proclk->hw.init = &init;
+
+       clk = devm_clk_register(dev, &proclk->hw);
+       if (!IS_ERR(clk)) {
+               ret = of_clk_add_provider(dev->of_node, of_clk_src_simple_get,
+                       clk);
+       } else {
+               dev_err(dev, "Fail to register clock driver\n");
+               kfree(proclk);
+               ret = PTR_ERR(clk);
+       }
+       return ret;
+}
+
+static int clk_allo_dac_remove(struct platform_device *pdev)
+{
+       of_clk_del_provider(pdev->dev.of_node);
+       return 0;
+}
+
+static struct platform_driver clk_allo_dac_driver = {
+       .probe = clk_allo_dac_probe,
+       .remove = clk_allo_dac_remove,
+       .driver = {
+               .name = "clk-allo-dac",
+               .of_match_table = clk_allo_dac_dt_ids,
+       },
+};
+
+static int __init clk_allo_dac_init(void)
+{
+       return platform_driver_register(&clk_allo_dac_driver);
+}
+core_initcall(clk_allo_dac_init);
+
+static void __exit clk_allo_dac_exit(void)
+{
+       platform_driver_unregister(&clk_allo_dac_driver);
+}
+module_exit(clk_allo_dac_exit);
+
+MODULE_DESCRIPTION("Allo DAC clock driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:clk-allo-dac");
--- /dev/null
+++ b/drivers/clk/clk-hifiberry-dachd.c
@@ -0,0 +1,332 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Clock Driver for HiFiBerry DAC+ HD
+ *
+ * Author: Joerg Schambacher, i2Audio GmbH for HiFiBerry
+ *         Copyright 2020
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clk.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+
+#define NO_PLL_RESET                   0
+#define PLL_RESET                      1
+#define HIFIBERRY_PLL_MAX_REGISTER     256
+#define DEFAULT_RATE                   44100
+
+static struct reg_default hifiberry_pll_reg_defaults[] = {
+       {0x02, 0x53}, {0x03, 0x00}, {0x07, 0x20}, {0x0F, 0x00},
+       {0x10, 0x0D}, {0x11, 0x1D}, {0x12, 0x0D}, {0x13, 0x8C},
+       {0x14, 0x8C}, {0x15, 0x8C}, {0x16, 0x8C}, {0x17, 0x8C},
+       {0x18, 0x2A}, {0x1C, 0x00}, {0x1D, 0x0F}, {0x1F, 0x00},
+       {0x2A, 0x00}, {0x2C, 0x00}, {0x2F, 0x00}, {0x30, 0x00},
+       {0x31, 0x00}, {0x32, 0x00}, {0x34, 0x00}, {0x37, 0x00},
+       {0x38, 0x00}, {0x39, 0x00}, {0x3A, 0x00}, {0x3B, 0x01},
+       {0x3E, 0x00}, {0x3F, 0x00}, {0x40, 0x00}, {0x41, 0x00},
+       {0x5A, 0x00}, {0x5B, 0x00}, {0x95, 0x00}, {0x96, 0x00},
+       {0x97, 0x00}, {0x98, 0x00}, {0x99, 0x00}, {0x9A, 0x00},
+       {0x9B, 0x00}, {0xA2, 0x00}, {0xA3, 0x00}, {0xA4, 0x00},
+       {0xB7, 0x92},
+       {0x1A, 0x3D}, {0x1B, 0x09}, {0x1E, 0xF3}, {0x20, 0x13},
+       {0x21, 0x75}, {0x2B, 0x04}, {0x2D, 0x11}, {0x2E, 0xE0},
+       {0x3D, 0x7A},
+       {0x35, 0x9D}, {0x36, 0x00}, {0x3C, 0x42},
+       { 177, 0xAC},
+};
+static struct reg_default common_pll_regs[HIFIBERRY_PLL_MAX_REGISTER];
+static int num_common_pll_regs;
+static struct reg_default dedicated_192k_pll_regs[HIFIBERRY_PLL_MAX_REGISTER];
+static int num_dedicated_192k_pll_regs;
+static struct reg_default dedicated_96k_pll_regs[HIFIBERRY_PLL_MAX_REGISTER];
+static int num_dedicated_96k_pll_regs;
+static struct reg_default dedicated_48k_pll_regs[HIFIBERRY_PLL_MAX_REGISTER];
+static int num_dedicated_48k_pll_regs;
+static struct reg_default dedicated_176k4_pll_regs[HIFIBERRY_PLL_MAX_REGISTER];
+static int num_dedicated_176k4_pll_regs;
+static struct reg_default dedicated_88k2_pll_regs[HIFIBERRY_PLL_MAX_REGISTER];
+static int num_dedicated_88k2_pll_regs;
+static struct reg_default dedicated_44k1_pll_regs[HIFIBERRY_PLL_MAX_REGISTER];
+static int num_dedicated_44k1_pll_regs;
+
+/**
+ * struct clk_hifiberry_drvdata - Common struct to the HiFiBerry DAC HD Clk
+ * @hw: clk_hw for the common clk framework
+ */
+struct clk_hifiberry_drvdata {
+       struct regmap *regmap;
+       struct clk *clk;
+       struct clk_hw hw;
+       unsigned long rate;
+};
+
+#define to_hifiberry_clk(_hw) \
+       container_of(_hw, struct clk_hifiberry_drvdata, hw)
+
+static int clk_hifiberry_dachd_write_pll_regs(struct regmap *regmap,
+                               struct reg_default *regs,
+                               int num, int do_pll_reset)
+{
+       int i;
+       int ret = 0;
+       char pll_soft_reset[] = { 177, 0xAC, };
+
+       for (i = 0; i < num; i++) {
+               ret |= regmap_write(regmap, regs[i].reg, regs[i].def);
+               if (ret)
+                       return ret;
+       }
+       if (do_pll_reset) {
+               ret |= regmap_write(regmap, pll_soft_reset[0],
+                                               pll_soft_reset[1]);
+               mdelay(10);
+       }
+       return ret;
+}
+
+static unsigned long clk_hifiberry_dachd_recalc_rate(struct clk_hw *hw,
+       unsigned long parent_rate)
+{
+       return to_hifiberry_clk(hw)->rate;
+}
+
+static long clk_hifiberry_dachd_round_rate(struct clk_hw *hw,
+       unsigned long rate, unsigned long *parent_rate)
+{
+       return rate;
+}
+
+static int clk_hifiberry_dachd_set_rate(struct clk_hw *hw,
+       unsigned long rate, unsigned long parent_rate)
+{
+       int ret;
+       struct clk_hifiberry_drvdata *drvdata = to_hifiberry_clk(hw);
+
+       switch (rate) {
+       case 44100:
+               ret = clk_hifiberry_dachd_write_pll_regs(drvdata->regmap,
+                       dedicated_44k1_pll_regs, num_dedicated_44k1_pll_regs,
+                       PLL_RESET);
+               break;
+       case 88200:
+               ret = clk_hifiberry_dachd_write_pll_regs(drvdata->regmap,
+                       dedicated_88k2_pll_regs, num_dedicated_88k2_pll_regs,
+                       PLL_RESET);
+               break;
+       case 176400:
+               ret = clk_hifiberry_dachd_write_pll_regs(drvdata->regmap,
+                       dedicated_176k4_pll_regs, num_dedicated_176k4_pll_regs,
+                       PLL_RESET);
+               break;
+       case 48000:
+               ret = clk_hifiberry_dachd_write_pll_regs(drvdata->regmap,
+                       dedicated_48k_pll_regs, num_dedicated_48k_pll_regs,
+                       PLL_RESET);
+               break;
+       case 96000:
+               ret = clk_hifiberry_dachd_write_pll_regs(drvdata->regmap,
+                       dedicated_96k_pll_regs, num_dedicated_96k_pll_regs,
+                       PLL_RESET);
+               break;
+       case 192000:
+               ret = clk_hifiberry_dachd_write_pll_regs(drvdata->regmap,
+                       dedicated_192k_pll_regs, num_dedicated_192k_pll_regs,
+                       PLL_RESET);
+               break;
+       default:
+               ret = -EINVAL;
+               break;
+       }
+       to_hifiberry_clk(hw)->rate = rate;
+
+       return ret;
+}
+
+const struct clk_ops clk_hifiberry_dachd_rate_ops = {
+       .recalc_rate = clk_hifiberry_dachd_recalc_rate,
+       .round_rate = clk_hifiberry_dachd_round_rate,
+       .set_rate = clk_hifiberry_dachd_set_rate,
+};
+
+static int clk_hifiberry_get_prop_values(struct device *dev,
+                                       char *prop_name,
+                                       struct reg_default *regs)
+{
+       int ret;
+       int i;
+       u8 tmp[2 * HIFIBERRY_PLL_MAX_REGISTER];
+
+       ret = of_property_read_variable_u8_array(dev->of_node, prop_name,
+                       tmp, 0, 2 * HIFIBERRY_PLL_MAX_REGISTER);
+       if (ret < 0)
+               return ret;
+       if (ret & 1) {
+               dev_err(dev,
+                       "%s <%s> -> #%i odd number of bytes for reg/val pairs!",
+                       __func__,
+                       prop_name,
+                       ret);
+               return -EINVAL;
+       }
+       ret /= 2;
+       for (i = 0; i < ret; i++) {
+               regs[i].reg = (u32)tmp[2 * i];
+               regs[i].def = (u32)tmp[2 * i + 1];
+       }
+       return ret;
+}
+
+
+static int clk_hifiberry_dachd_dt_parse(struct device *dev)
+{
+       num_common_pll_regs = clk_hifiberry_get_prop_values(dev,
+                               "common_pll_regs", common_pll_regs);
+       num_dedicated_44k1_pll_regs = clk_hifiberry_get_prop_values(dev,
+                               "44k1_pll_regs", dedicated_44k1_pll_regs);
+       num_dedicated_88k2_pll_regs = clk_hifiberry_get_prop_values(dev,
+                               "88k2_pll_regs", dedicated_88k2_pll_regs);
+       num_dedicated_176k4_pll_regs = clk_hifiberry_get_prop_values(dev,
+                               "176k4_pll_regs", dedicated_176k4_pll_regs);
+       num_dedicated_48k_pll_regs = clk_hifiberry_get_prop_values(dev,
+                               "48k_pll_regs", dedicated_48k_pll_regs);
+       num_dedicated_96k_pll_regs = clk_hifiberry_get_prop_values(dev,
+                               "96k_pll_regs", dedicated_96k_pll_regs);
+       num_dedicated_192k_pll_regs = clk_hifiberry_get_prop_values(dev,
+                               "192k_pll_regs", dedicated_192k_pll_regs);
+       return 0;
+}
+
+
+static int clk_hifiberry_dachd_remove(struct device *dev)
+{
+       of_clk_del_provider(dev->of_node);
+       return 0;
+}
+
+const struct regmap_config hifiberry_pll_regmap = {
+       .reg_bits = 8,
+       .val_bits = 8,
+       .max_register = HIFIBERRY_PLL_MAX_REGISTER,
+       .reg_defaults = hifiberry_pll_reg_defaults,
+       .num_reg_defaults = ARRAY_SIZE(hifiberry_pll_reg_defaults),
+       .cache_type = REGCACHE_RBTREE,
+};
+EXPORT_SYMBOL_GPL(hifiberry_pll_regmap);
+
+
+static int clk_hifiberry_dachd_i2c_probe(struct i2c_client *i2c,
+                            const struct i2c_device_id *id)
+{
+       struct clk_hifiberry_drvdata *hdclk;
+       int ret = 0;
+       struct clk_init_data init;
+       struct device *dev = &i2c->dev;
+       struct device_node *dev_node = dev->of_node;
+       struct regmap_config config = hifiberry_pll_regmap;
+
+       hdclk = devm_kzalloc(&i2c->dev,
+                       sizeof(struct clk_hifiberry_drvdata), GFP_KERNEL);
+       if (!hdclk)
+               return -ENOMEM;
+
+       i2c_set_clientdata(i2c, hdclk);
+
+       hdclk->regmap = devm_regmap_init_i2c(i2c, &config);
+
+       if (IS_ERR(hdclk->regmap))
+               return PTR_ERR(hdclk->regmap);
+
+       /* start PLL to allow detection of DAC */
+       ret = clk_hifiberry_dachd_write_pll_regs(hdclk->regmap,
+                               hifiberry_pll_reg_defaults,
+                               ARRAY_SIZE(hifiberry_pll_reg_defaults),
+                               PLL_RESET);
+       if (ret)
+               return ret;
+
+       clk_hifiberry_dachd_dt_parse(dev);
+
+       /* restart PLL with configs from DTB */
+       ret = clk_hifiberry_dachd_write_pll_regs(hdclk->regmap, common_pll_regs,
+                                       num_common_pll_regs, PLL_RESET);
+       if (ret)
+               return ret;
+
+       init.name = "clk-hifiberry-dachd";
+       init.ops = &clk_hifiberry_dachd_rate_ops;
+       init.flags = 0;
+       init.parent_names = NULL;
+       init.num_parents = 0;
+
+       hdclk->hw.init = &init;
+
+       hdclk->clk = devm_clk_register(dev, &hdclk->hw);
+       if (IS_ERR(hdclk->clk)) {
+               dev_err(dev, "unable to register %s\n", init.name);
+               return PTR_ERR(hdclk->clk);
+       }
+
+       ret = of_clk_add_provider(dev_node, of_clk_src_simple_get, hdclk->clk);
+       if (ret != 0) {
+               dev_err(dev, "Cannot of_clk_add_provider");
+               return ret;
+       }
+
+       ret = clk_set_rate(hdclk->hw.clk, DEFAULT_RATE);
+       if (ret != 0) {
+               dev_err(dev, "Cannot set rate : %d\n",  ret);
+               return -EINVAL;
+       }
+
+       return ret;
+}
+
+static void clk_hifiberry_dachd_i2c_remove(struct i2c_client *i2c)
+{
+       clk_hifiberry_dachd_remove(&i2c->dev);
+}
+
+static const struct i2c_device_id clk_hifiberry_dachd_i2c_id[] = {
+       { "dachd-clk", },
+       { }
+};
+MODULE_DEVICE_TABLE(i2c, clk_hifiberry_dachd_i2c_id);
+
+static const struct of_device_id clk_hifiberry_dachd_of_match[] = {
+       { .compatible = "hifiberry,dachd-clk", },
+       { }
+};
+MODULE_DEVICE_TABLE(of, clk_hifiberry_dachd_of_match);
+
+static struct i2c_driver clk_hifiberry_dachd_i2c_driver = {
+       .probe          = clk_hifiberry_dachd_i2c_probe,
+       .remove         = clk_hifiberry_dachd_i2c_remove,
+       .id_table       = clk_hifiberry_dachd_i2c_id,
+       .driver         = {
+               .name   = "dachd-clk",
+               .of_match_table = of_match_ptr(clk_hifiberry_dachd_of_match),
+       },
+};
+
+module_i2c_driver(clk_hifiberry_dachd_i2c_driver);
+
+
+MODULE_DESCRIPTION("HiFiBerry DAC+ HD clock driver");
+MODULE_AUTHOR("Joerg Schambacher <joerg@i2audio.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:clk-hifiberry-dachd");
--- /dev/null
+++ b/drivers/clk/clk-hifiberry-dacpro.c
@@ -0,0 +1,160 @@
+/*
+ * Clock Driver for HiFiBerry DAC Pro
+ *
+ * Author: Stuart MacLean
+ *         Copyright 2015
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+
+/* Clock rate of CLK44EN attached to GPIO6 pin */
+#define CLK_44EN_RATE 22579200UL
+/* Clock rate of CLK48EN attached to GPIO3 pin */
+#define CLK_48EN_RATE 24576000UL
+
+/**
+ * struct hifiberry_dacpro_clk - Common struct to the HiFiBerry DAC Pro
+ * @hw: clk_hw for the common clk framework
+ * @mode: 0 => CLK44EN, 1 => CLK48EN
+ */
+struct clk_hifiberry_hw {
+       struct clk_hw hw;
+       uint8_t mode;
+};
+
+#define to_hifiberry_clk(_hw) container_of(_hw, struct clk_hifiberry_hw, hw)
+
+static const struct of_device_id clk_hifiberry_dacpro_dt_ids[] = {
+       { .compatible = "hifiberry,dacpro-clk",},
+       { }
+};
+MODULE_DEVICE_TABLE(of, clk_hifiberry_dacpro_dt_ids);
+
+static unsigned long clk_hifiberry_dacpro_recalc_rate(struct clk_hw *hw,
+       unsigned long parent_rate)
+{
+       return (to_hifiberry_clk(hw)->mode == 0) ? CLK_44EN_RATE :
+               CLK_48EN_RATE;
+}
+
+static long clk_hifiberry_dacpro_round_rate(struct clk_hw *hw,
+       unsigned long rate, unsigned long *parent_rate)
+{
+       long actual_rate;
+
+       if (rate <= CLK_44EN_RATE) {
+               actual_rate = (long)CLK_44EN_RATE;
+       } else if (rate >= CLK_48EN_RATE) {
+               actual_rate = (long)CLK_48EN_RATE;
+       } else {
+               long diff44Rate = (long)(rate - CLK_44EN_RATE);
+               long diff48Rate = (long)(CLK_48EN_RATE - rate);
+
+               if (diff44Rate < diff48Rate)
+                       actual_rate = (long)CLK_44EN_RATE;
+               else
+                       actual_rate = (long)CLK_48EN_RATE;
+       }
+       return actual_rate;
+}
+
+
+static int clk_hifiberry_dacpro_set_rate(struct clk_hw *hw,
+       unsigned long rate, unsigned long parent_rate)
+{
+       unsigned long actual_rate;
+       struct clk_hifiberry_hw *clk = to_hifiberry_clk(hw);
+
+       actual_rate = (unsigned long)clk_hifiberry_dacpro_round_rate(hw, rate,
+               &parent_rate);
+       clk->mode = (actual_rate == CLK_44EN_RATE) ? 0 : 1;
+       return 0;
+}
+
+
+const struct clk_ops clk_hifiberry_dacpro_rate_ops = {
+       .recalc_rate = clk_hifiberry_dacpro_recalc_rate,
+       .round_rate = clk_hifiberry_dacpro_round_rate,
+       .set_rate = clk_hifiberry_dacpro_set_rate,
+};
+
+static int clk_hifiberry_dacpro_probe(struct platform_device *pdev)
+{
+       int ret;
+       struct clk_hifiberry_hw *proclk;
+       struct clk *clk;
+       struct device *dev;
+       struct clk_init_data init;
+
+       dev = &pdev->dev;
+
+       proclk = kzalloc(sizeof(struct clk_hifiberry_hw), GFP_KERNEL);
+       if (!proclk)
+               return -ENOMEM;
+
+       init.name = "clk-hifiberry-dacpro";
+       init.ops = &clk_hifiberry_dacpro_rate_ops;
+       init.flags = 0;
+       init.parent_names = NULL;
+       init.num_parents = 0;
+
+       proclk->mode = 0;
+       proclk->hw.init = &init;
+
+       clk = devm_clk_register(dev, &proclk->hw);
+       if (!IS_ERR(clk)) {
+               ret = of_clk_add_provider(dev->of_node, of_clk_src_simple_get,
+                       clk);
+       } else {
+               dev_err(dev, "Fail to register clock driver\n");
+               kfree(proclk);
+               ret = PTR_ERR(clk);
+       }
+       return ret;
+}
+
+static int clk_hifiberry_dacpro_remove(struct platform_device *pdev)
+{
+       of_clk_del_provider(pdev->dev.of_node);
+       return 0;
+}
+
+static struct platform_driver clk_hifiberry_dacpro_driver = {
+       .probe = clk_hifiberry_dacpro_probe,
+       .remove = clk_hifiberry_dacpro_remove,
+       .driver = {
+               .name = "clk-hifiberry-dacpro",
+               .of_match_table = clk_hifiberry_dacpro_dt_ids,
+       },
+};
+
+static int __init clk_hifiberry_dacpro_init(void)
+{
+       return platform_driver_register(&clk_hifiberry_dacpro_driver);
+}
+core_initcall(clk_hifiberry_dacpro_init);
+
+static void __exit clk_hifiberry_dacpro_exit(void)
+{
+       platform_driver_unregister(&clk_hifiberry_dacpro_driver);
+}
+module_exit(clk_hifiberry_dacpro_exit);
+
+MODULE_DESCRIPTION("HiFiBerry DAC Pro clock driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:clk-hifiberry-dacpro");
--- a/sound/soc/bcm/Kconfig
+++ b/sound/soc/bcm/Kconfig
@@ -26,3 +26,308 @@ config SND_BCM63XX_I2S_WHISTLER
          DSL/PON chips (bcm63158, bcm63178)
 
          If you don't know what to do here, say N
+
+config SND_BCM2708_SOC_CHIPDIP_DAC
+         tristate "Support for the ChipDip DAC"
+         depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+         help
+          Say Y or M if you want to add support for the ChipDip DAC soundcard
+
+config SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD
+       tristate "Support for Google voiceHAT soundcard"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_VOICEHAT
+       select SND_RPI_SIMPLE_SOUNDCARD
+       help
+          Say Y or M if you want to add support for voiceHAT soundcard.
+
+config SND_BCM2708_SOC_HIFIBERRY_DAC
+        tristate "Support for HifiBerry DAC"
+        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+        select SND_SOC_PCM5102A
+        select SND_RPI_SIMPLE_SOUNDCARD
+        help
+         Say Y or M if you want to add support for HifiBerry DAC.
+
+config SND_BCM2708_SOC_HIFIBERRY_DACPLUS
+        tristate "Support for HifiBerry DAC+"
+        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+        select SND_SOC_PCM512x
+        select SND_SOC_TPA6130A2
+        select COMMON_CLK_HIFIBERRY_DACPRO
+        help
+         Say Y or M if you want to add support for HifiBerry DAC+.
+
+config SND_BCM2708_SOC_HIFIBERRY_DACPLUSHD
+        tristate "Support for HifiBerry DAC+ HD"
+        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+        select SND_SOC_PCM179X_I2C
+        select COMMON_CLK_HIFIBERRY_DACPLUSHD
+        help
+         Say Y or M if you want to add support for HifiBerry DAC+ HD.
+
+config SND_BCM2708_SOC_HIFIBERRY_DACPLUSADC
+        tristate "Support for HifiBerry DAC+ADC"
+        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+        select SND_SOC_PCM512x_I2C
+       select SND_SOC_DMIC
+        select COMMON_CLK_HIFIBERRY_DACPRO
+        help
+         Say Y or M if you want to add support for HifiBerry DAC+ADC.
+
+config SND_BCM2708_SOC_HIFIBERRY_DACPLUSADCPRO
+        tristate "Support for HifiBerry DAC+ADC PRO"
+        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+        select SND_SOC_PCM512x_I2C
+        select SND_SOC_PCM186X_I2C
+        select SND_SOC_TPA6130A2
+        select COMMON_CLK_HIFIBERRY_DACPRO
+        help
+         Say Y or M if you want to add support for HifiBerry DAC+ADC PRO.
+
+config SND_BCM2708_SOC_HIFIBERRY_DACPLUSDSP
+        tristate "Support for HifiBerry DAC+DSP"
+        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_RPI_SIMPLE_SOUNDCARD
+        help
+         Say Y or M if you want to add support for HifiBerry DSP-DAC.
+
+config SND_BCM2708_SOC_HIFIBERRY_DIGI
+        tristate "Support for HifiBerry Digi"
+        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+        select SND_SOC_WM8804
+        help
+         Say Y or M if you want to add support for HifiBerry Digi S/PDIF output board.
+
+config SND_BCM2708_SOC_HIFIBERRY_AMP
+        tristate "Support for the HifiBerry Amp"
+        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+        select SND_SOC_TAS5713
+        select SND_RPI_SIMPLE_SOUNDCARD
+        help
+         Say Y or M if you want to add support for the HifiBerry Amp amplifier board.
+
+ config SND_BCM2708_SOC_PIFI_40
+         tristate "Support for the PiFi-40 amp"
+         depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+         select SND_SOC_TAS571X
+         select SND_PIFI_40
+         help
+          Say Y or M if you want to add support for the PiFi40 amp board
+
+config SND_BCM2708_SOC_RPI_CIRRUS
+        tristate "Support for Cirrus Logic Audio Card"
+        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+        select SND_SOC_WM5102
+        select SND_SOC_WM8804
+        help
+         Say Y or M if you want to add support for the Wolfson and
+         Cirrus Logic audio cards.
+
+config SND_BCM2708_SOC_RPI_DAC
+        tristate "Support for RPi-DAC"
+        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+        select SND_SOC_PCM1794A
+        select SND_RPI_SIMPLE_SOUNDCARD
+        help
+         Say Y or M if you want to add support for RPi-DAC.
+
+config SND_BCM2708_SOC_RPI_PROTO
+       tristate "Support for Rpi-PROTO"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_WM8731
+       help
+         Say Y or M if you want to add support for Audio Codec Board PROTO (WM8731).
+
+config SND_BCM2708_SOC_JUSTBOOM_BOTH
+       tristate "Support for simultaneous JustBoom Digi and JustBoom DAC"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_WM8804
+       select SND_SOC_PCM512x
+       help
+               Say Y or M if you want to add support for simultaneous
+               JustBoom Digi and JustBoom DAC.
+
+               This is not the right choice if you only have one but both of
+               these cards.
+
+config SND_BCM2708_SOC_JUSTBOOM_DAC
+       tristate "Support for JustBoom DAC"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_PCM512x
+       help
+         Say Y or M if you want to add support for JustBoom DAC.
+
+config SND_BCM2708_SOC_JUSTBOOM_DIGI
+       tristate "Support for JustBoom Digi"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_WM8804
+        select SND_RPI_WM8804_SOUNDCARD
+       help
+         Say Y or M if you want to add support for JustBoom Digi.
+
+config SND_BCM2708_SOC_IQAUDIO_CODEC
+       tristate "Support for IQaudIO-CODEC"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_DA7213
+       help
+         Say Y or M if you want to add support for IQaudIO-CODEC.
+
+config SND_BCM2708_SOC_IQAUDIO_DAC
+       tristate "Support for IQaudIO-DAC"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_PCM512x_I2C
+       help
+         Say Y or M if you want to add support for IQaudIO-DAC.
+
+config SND_BCM2708_SOC_IQAUDIO_DIGI
+       tristate "Support for IQAudIO Digi"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_WM8804
+       select SND_RPI_WM8804_SOUNDCARD
+       help
+         Say Y or M if you want to add support for IQAudIO Digital IO board.
+
+config SND_BCM2708_SOC_I_SABRE_Q2M
+        tristate "Support for Audiophonics I-Sabre Q2M DAC"
+        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+        select SND_SOC_I_SABRE_CODEC
+        help
+        Say Y or M if you want to add support for Audiophonics I-SABRE Q2M DAC
+
+config SND_BCM2708_SOC_ADAU1977_ADC
+       tristate "Support for ADAU1977 ADC"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_ADAU1977_I2C
+       select SND_RPI_SIMPLE_SOUNDCARD
+       help
+         Say Y or M if you want to add support for ADAU1977 ADC.
+
+config SND_AUDIOINJECTOR_PI_SOUNDCARD
+       tristate "Support for audioinjector.net Pi add on soundcard"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_WM8731
+       help
+         Say Y or M if you want to add support for audioinjector.net Pi Hat
+
+config SND_AUDIOINJECTOR_OCTO_SOUNDCARD
+       tristate "Support for audioinjector.net Octo channel (Hat) soundcard"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_CS42XX8_I2C
+       help
+         Say Y or M if you want to add support for audioinjector.net octo add on
+
+config SND_AUDIOINJECTOR_ISOLATED_SOUNDCARD
+       tristate "Support for audioinjector.net isolated DAC and ADC soundcard"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_CS4271_I2C
+       help
+         Say Y or M if you want to add support for audioinjector.net isolated soundcard
+
+config SND_AUDIOSENSE_PI
+       tristate "Support for AudioSense Add-On Soundcard"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_TLV320AIC32X4_I2C
+       help
+         Say Y or M if you want to add support for tlv320aic32x4 add-on
+
+config SND_DIGIDAC1_SOUNDCARD
+        tristate "Support for Red Rocks Audio DigiDAC1"
+        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+        select SND_SOC_WM8804
+        select SND_SOC_WM8741
+        help
+         Say Y or M if you want to add support for Red Rocks Audio DigiDAC1 board.
+
+config SND_BCM2708_SOC_DIONAUDIO_LOCO
+       tristate "Support for Dion Audio LOCO DAC-AMP"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_PCM5102a
+       help
+         Say Y or M if you want to add support for Dion Audio LOCO.
+
+config SND_BCM2708_SOC_DIONAUDIO_LOCO_V2
+       tristate "Support for Dion Audio LOCO-V2 DAC-AMP"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_PCM5122
+       help
+         Say Y or M if you want to add support for Dion Audio LOCO-V2.
+
+config SND_BCM2708_SOC_ALLO_PIANO_DAC
+       tristate "Support for Allo Piano DAC"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_PCM512x_I2C
+       help
+         Say Y or M if you want to add support for Allo Piano DAC.
+
+config SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS
+       tristate "Support for Allo Piano DAC Plus"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_PCM512x_I2C
+       help
+         Say Y or M if you want to add support for Allo Piano DAC Plus.
+
+config SND_BCM2708_SOC_ALLO_BOSS_DAC
+       tristate "Support for Allo Boss DAC"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_PCM512x_I2C
+       help
+         Say Y or M if you want to add support for Allo Boss DAC.
+
+config SND_BCM2708_SOC_ALLO_BOSS2_DAC
+       tristate "Support for Allo Boss2 DAC"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       depends on I2C
+       select REGMAP_I2C
+       select SND_AUDIO_GRAPH_CARD
+       help
+         Say Y or M if you want to add support for Allo Boss2 DAC.
+
+config SND_BCM2708_SOC_ALLO_DIGIONE
+       tristate "Support for Allo DigiOne"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_WM8804
+       select SND_RPI_WM8804_SOUNDCARD
+       help
+         Say Y or M if you want to add support for Allo DigiOne.
+
+config SND_BCM2708_SOC_ALLO_KATANA_DAC
+       tristate "Support for Allo Katana DAC"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       depends on I2C
+       select REGMAP_I2C
+       select SND_AUDIO_GRAPH_CARD
+       help
+         Say Y or M if you want to add support for Allo Katana DAC.
+
+config SND_BCM2708_SOC_FE_PI_AUDIO
+       tristate "Support for Fe-Pi-Audio"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_SGTL5000
+       help
+         Say Y or M if you want to add support for Fe-Pi-Audio.
+
+config SND_PISOUND
+       tristate "Support for Blokas Labs pisound"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_RAWMIDI
+       help
+         Say Y or M if you want to add support for Blokas Labs pisound.
+
+config SND_RPI_SIMPLE_SOUNDCARD
+       tristate "Support for Raspberry Pi simple soundcards"
+       help
+         Say Y or M if you want to add support Raspbery Pi simple soundcards
+
+config SND_RPI_WM8804_SOUNDCARD
+       tristate "Support for Raspberry Pi generic WM8804 soundcards"
+       help
+         Say Y or M if you want to add support for the Raspberry Pi
+          generic driver for WM8804 based soundcards.
+
+config SND_DACBERRY400
+       tristate "Support for DACBERRY400 Soundcard"
+       depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+       select SND_SOC_TLV320AIC3X_I2C
+       help
+         Say Y or M if you want to add support for tlv320aic3x add-on
--- a/sound/soc/bcm/Makefile
+++ b/sound/soc/bcm/Makefile
@@ -12,4 +12,73 @@ obj-$(CONFIG_SND_SOC_CYGNUS) += snd-soc-
 # BCM63XX Platform Support
 snd-soc-63xx-objs := bcm63xx-i2s-whistler.o bcm63xx-pcm-whistler.o
 
-obj-$(CONFIG_SND_BCM63XX_I2S_WHISTLER) += snd-soc-63xx.o
\ No newline at end of file
+obj-$(CONFIG_SND_BCM63XX_I2S_WHISTLER) += snd-soc-63xx.o
+
+# Google voiceHAT custom codec support
+snd-soc-googlevoicehat-codec-objs := googlevoicehat-codec.o
+
+# BCM2708 Machine Support
+snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o
+snd-soc-hifiberry-dacplushd-objs := hifiberry_dacplushd.o
+snd-soc-hifiberry-dacplusadc-objs := hifiberry_dacplusadc.o
+snd-soc-hifiberry-dacplusadcpro-objs := hifiberry_dacplusadcpro.o
+snd-soc-hifiberry-dacplusdsp-objs := hifiberry_dacplusdsp.o
+snd-soc-justboom-both-objs := justboom-both.o
+snd-soc-justboom-dac-objs := justboom-dac.o
+snd-soc-rpi-cirrus-objs := rpi-cirrus.o
+snd-soc-rpi-proto-objs := rpi-proto.o
+snd-soc-iqaudio-codec-objs := iqaudio-codec.o
+snd-soc-iqaudio-dac-objs := iqaudio-dac.o
+ snd-soc-i-sabre-q2m-objs := i-sabre-q2m.o
+snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o
+snd-soc-audioinjector-octo-soundcard-objs := audioinjector-octo-soundcard.o
+snd-soc-audioinjector-isolated-soundcard-objs := audioinjector-isolated-soundcard.o
+snd-soc-audiosense-pi-objs := audiosense-pi.o
+snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o
+snd-soc-dionaudio-loco-objs := dionaudio_loco.o
+snd-soc-dionaudio-loco-v2-objs := dionaudio_loco-v2.o
+snd-soc-allo-boss-dac-objs := allo-boss-dac.o
+snd-soc-allo-boss2-dac-objs := allo-boss2-dac.o
+snd-soc-allo-piano-dac-objs := allo-piano-dac.o
+snd-soc-allo-piano-dac-plus-objs := allo-piano-dac-plus.o
+snd-soc-allo-katana-codec-objs := allo-katana-codec.o
+snd-soc-pisound-objs := pisound.o
+snd-soc-fe-pi-audio-objs := fe-pi-audio.o
+snd-soc-rpi-simple-soundcard-objs := rpi-simple-soundcard.o
+snd-soc-rpi-wm8804-soundcard-objs := rpi-wm8804-soundcard.o
+snd-soc-pifi-40-objs := pifi-40.o
+snd-soc-chipdip-dac-objs := chipdip-dac.o
+snd-soc-dacberry400-objs := dacberry400.o
+
+obj-$(CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD)  += snd-soc-googlevoicehat-codec.o
+obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o
+obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSHD) += snd-soc-hifiberry-dacplushd.o
+obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADC) += snd-soc-hifiberry-dacplusadc.o
+obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADCPRO) += snd-soc-hifiberry-dacplusadcpro.o
+obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSDSP) += snd-soc-hifiberry-dacplusdsp.o
+obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_BOTH) += snd-soc-justboom-both.o
+obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC) += snd-soc-justboom-dac.o
+obj-$(CONFIG_SND_BCM2708_SOC_RPI_CIRRUS) += snd-soc-rpi-cirrus.o
+obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o
+obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_CODEC) += snd-soc-iqaudio-codec.o
+obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o
+obj-$(CONFIG_SND_BCM2708_SOC_I_SABRE_Q2M) += snd-soc-i-sabre-q2m.o
+obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o
+obj-$(CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD) += snd-soc-audioinjector-octo-soundcard.o
+obj-$(CONFIG_SND_AUDIOINJECTOR_ISOLATED_SOUNDCARD) += snd-soc-audioinjector-isolated-soundcard.o
+obj-$(CONFIG_SND_AUDIOSENSE_PI) += snd-soc-audiosense-pi.o
+obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o
+obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o
+obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2) += snd-soc-dionaudio-loco-v2.o
+obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC) += snd-soc-allo-boss-dac.o
+obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS2_DAC) += snd-soc-allo-boss2-dac.o
+obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o
+obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS) += snd-soc-allo-piano-dac-plus.o
+obj-$(CONFIG_SND_BCM2708_SOC_ALLO_KATANA_DAC) += snd-soc-allo-katana-codec.o
+obj-$(CONFIG_SND_PISOUND) += snd-soc-pisound.o
+obj-$(CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO) += snd-soc-fe-pi-audio.o
+obj-$(CONFIG_SND_RPI_SIMPLE_SOUNDCARD) += snd-soc-rpi-simple-soundcard.o
+obj-$(CONFIG_SND_RPI_WM8804_SOUNDCARD) += snd-soc-rpi-wm8804-soundcard.o
+obj-$(CONFIG_SND_BCM2708_SOC_PIFI_40) += snd-soc-pifi-40.o
+obj-$(CONFIG_SND_BCM2708_SOC_CHIPDIP_DAC) += snd-soc-chipdip-dac.o
+obj-$(CONFIG_SND_DACBERRY400) += snd-soc-dacberry400.o
--- /dev/null
+++ b/sound/soc/bcm/allo-boss-dac.c
@@ -0,0 +1,457 @@
+/*
+ * ALSA ASoC Machine Driver for Allo Boss DAC
+ *
+ * Author:     Baswaraj K <jaikumar@cem-solutions.net>
+ *             Copyright 2017
+ *             based on code by Daniel Matuschek,
+ *                              Stuart MacLean <stuart@hifiberry.com>
+ *             based on code by Florian Meier <florian.meier@koalo.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/gpio/consumer.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include "../codecs/pcm512x.h"
+
+#define ALLO_BOSS_NOCLOCK 0
+#define ALLO_BOSS_CLK44EN 1
+#define ALLO_BOSS_CLK48EN 2
+
+struct pcm512x_priv {
+       struct regmap *regmap;
+       struct clk *sclk;
+};
+
+static struct gpio_desc *mute_gpio;
+
+/* Clock rate of CLK44EN attached to GPIO6 pin */
+#define CLK_44EN_RATE 45158400UL
+/* Clock rate of CLK48EN attached to GPIO3 pin */
+#define CLK_48EN_RATE 49152000UL
+
+static bool slave;
+static bool snd_soc_allo_boss_master;
+static bool digital_gain_0db_limit = true;
+
+static void snd_allo_boss_select_clk(struct snd_soc_component *component,
+       int clk_id)
+{
+       switch (clk_id) {
+       case ALLO_BOSS_NOCLOCK:
+               snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x00);
+               break;
+       case ALLO_BOSS_CLK44EN:
+               snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x20);
+               break;
+       case ALLO_BOSS_CLK48EN:
+               snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x04);
+               break;
+       }
+}
+
+static void snd_allo_boss_clk_gpio(struct snd_soc_component *component)
+{
+       snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x24, 0x24);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02);
+}
+
+static bool snd_allo_boss_is_sclk(struct snd_soc_component *component)
+{
+       unsigned int sck;
+
+       sck = snd_soc_component_read(component, PCM512x_RATE_DET_4);
+       return (!(sck & 0x40));
+}
+
+static bool snd_allo_boss_is_sclk_sleep(
+       struct snd_soc_component *component)
+{
+       msleep(2);
+       return snd_allo_boss_is_sclk(component);
+}
+
+static bool snd_allo_boss_is_master_card(struct snd_soc_component *component)
+{
+       bool isClk44EN, isClk48En, isNoClk;
+
+       snd_allo_boss_clk_gpio(component);
+
+       snd_allo_boss_select_clk(component, ALLO_BOSS_CLK44EN);
+       isClk44EN = snd_allo_boss_is_sclk_sleep(component);
+
+       snd_allo_boss_select_clk(component, ALLO_BOSS_NOCLOCK);
+       isNoClk = snd_allo_boss_is_sclk_sleep(component);
+
+       snd_allo_boss_select_clk(component, ALLO_BOSS_CLK48EN);
+       isClk48En = snd_allo_boss_is_sclk_sleep(component);
+
+       return (isClk44EN && isClk48En && !isNoClk);
+}
+
+static int snd_allo_boss_clk_for_rate(int sample_rate)
+{
+       int type;
+
+       switch (sample_rate) {
+       case 11025:
+       case 22050:
+       case 44100:
+       case 88200:
+       case 176400:
+       case 352800:
+               type = ALLO_BOSS_CLK44EN;
+               break;
+       default:
+               type = ALLO_BOSS_CLK48EN;
+               break;
+       }
+       return type;
+}
+
+static void snd_allo_boss_set_sclk(struct snd_soc_component *component,
+       int sample_rate)
+{
+       struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
+
+       if (!IS_ERR(pcm512x->sclk)) {
+               int ctype;
+
+               ctype = snd_allo_boss_clk_for_rate(sample_rate);
+               clk_set_rate(pcm512x->sclk, (ctype == ALLO_BOSS_CLK44EN)
+                               ? CLK_44EN_RATE : CLK_48EN_RATE);
+               snd_allo_boss_select_clk(component, ctype);
+       }
+}
+
+static int snd_allo_boss_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       struct pcm512x_priv *priv = snd_soc_component_get_drvdata(component);
+
+       if (slave)
+               snd_soc_allo_boss_master = false;
+       else
+               snd_soc_allo_boss_master =
+                       snd_allo_boss_is_master_card(component);
+
+       if (snd_soc_allo_boss_master) {
+               struct snd_soc_dai_link *dai = rtd->dai_link;
+
+               dai->name = "BossDAC";
+               dai->stream_name = "Boss DAC HiFi [Master]";
+               dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+                       | SND_SOC_DAIFMT_CBM_CFM;
+
+               snd_soc_component_update_bits(component, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11);
+               snd_soc_component_update_bits(component, PCM512x_MASTER_MODE, 0x03, 0x03);
+               snd_soc_component_update_bits(component, PCM512x_MASTER_CLKDIV_2, 0x7f, 63);
+               /*
+               * Default sclk to CLK_48EN_RATE, otherwise codec
+               *  pcm512x_dai_startup_master method could call
+               *  snd_pcm_hw_constraint_ratnums using CLK_44EN/64
+               *  which will mask 384k sample rate.
+               */
+               if (!IS_ERR(priv->sclk))
+                       clk_set_rate(priv->sclk, CLK_48EN_RATE);
+       } else {
+               priv->sclk = ERR_PTR(-ENOENT);
+       }
+
+       snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
+
+       if (digital_gain_0db_limit) {
+               int ret;
+               struct snd_soc_card *card = rtd->card;
+
+               ret = snd_soc_limit_volume(card, "Digital Playback Volume",
+                               207);
+               if (ret < 0)
+                       dev_warn(card->dev, "Failed to set volume limit: %d\n",
+                                       ret);
+       }
+
+       return 0;
+}
+
+static int snd_allo_boss_update_rate_den(
+       struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
+       struct snd_ratnum *rats_no_pll;
+       unsigned int num = 0, den = 0;
+       int err;
+
+       rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL);
+       if (!rats_no_pll)
+               return -ENOMEM;
+
+       rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64;
+       rats_no_pll->den_min = 1;
+       rats_no_pll->den_max = 128;
+       rats_no_pll->den_step = 1;
+
+       err = snd_interval_ratnum(hw_param_interval(params,
+               SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den);
+       if (err >= 0 && den) {
+               params->rate_num = num;
+               params->rate_den = den;
+       }
+
+       devm_kfree(rtd->dev, rats_no_pll);
+       return 0;
+}
+
+static void snd_allo_boss_gpio_mute(struct snd_soc_card *card)
+{
+       if (mute_gpio)
+               gpiod_set_value_cansleep(mute_gpio, 1);
+}
+
+static void snd_allo_boss_gpio_unmute(struct snd_soc_card *card)
+{
+       if (mute_gpio)
+               gpiod_set_value_cansleep(mute_gpio, 0);
+}
+
+static int snd_allo_boss_set_bias_level(struct snd_soc_card *card,
+       struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level)
+{
+       struct snd_soc_pcm_runtime *rtd;
+       struct snd_soc_dai *codec_dai;
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+       codec_dai = asoc_rtd_to_codec(rtd, 0);
+
+       if (dapm->dev != codec_dai->dev)
+               return 0;
+
+       switch (level) {
+       case SND_SOC_BIAS_PREPARE:
+               if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
+                       break;
+               /* UNMUTE DAC */
+               snd_allo_boss_gpio_unmute(card);
+               break;
+
+       case SND_SOC_BIAS_STANDBY:
+               if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
+                       break;
+               /* MUTE DAC */
+               snd_allo_boss_gpio_mute(card);
+               break;
+
+       default:
+               break;
+       }
+
+       return 0;
+}
+
+static int snd_allo_boss_hw_params(
+       struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
+{
+       int ret = 0;
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       int channels = params_channels(params);
+       int width = snd_pcm_format_physical_width(params_format(params));
+
+       if (snd_soc_allo_boss_master) {
+               struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+               snd_allo_boss_set_sclk(component,
+                       params_rate(params));
+
+               ret = snd_allo_boss_update_rate_den(
+                       substream, params);
+               if (ret)
+                       return ret;
+       }
+
+       ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), channels * width);
+       if (ret)
+               return ret;
+       ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_codec(rtd, 0), channels * width);
+       return ret;
+}
+
+static int snd_allo_boss_startup(
+       struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       struct snd_soc_card *card = rtd->card;
+
+       snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
+       snd_allo_boss_gpio_mute(card);
+
+       if (snd_soc_allo_boss_master) {
+               struct pcm512x_priv *priv = snd_soc_component_get_drvdata(component);
+               /*
+                * Default sclk to CLK_48EN_RATE, otherwise codec
+                * pcm512x_dai_startup_master method could call
+                * snd_pcm_hw_constraint_ratnums using CLK_44EN/64
+                * which will mask 384k sample rate.
+                */
+               if (!IS_ERR(priv->sclk))
+                       clk_set_rate(priv->sclk, CLK_48EN_RATE);
+       }
+
+       return 0;
+}
+
+static void snd_allo_boss_shutdown(
+       struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+       snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
+}
+
+static int snd_allo_boss_prepare(
+       struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_card *card = rtd->card;
+
+       snd_allo_boss_gpio_unmute(card);
+       return 0;
+}
+/* machine stream operations */
+static struct snd_soc_ops snd_allo_boss_ops = {
+       .hw_params = snd_allo_boss_hw_params,
+       .startup = snd_allo_boss_startup,
+       .shutdown = snd_allo_boss_shutdown,
+       .prepare = snd_allo_boss_prepare,
+};
+
+SND_SOC_DAILINK_DEFS(allo_boss,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link snd_allo_boss_dai[] = {
+{
+       .name           = "Boss DAC",
+       .stream_name    = "Boss DAC HiFi",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S |
+                         SND_SOC_DAIFMT_NB_NF |
+                         SND_SOC_DAIFMT_CBS_CFS,
+       .ops            = &snd_allo_boss_ops,
+       .init           = snd_allo_boss_init,
+       SND_SOC_DAILINK_REG(allo_boss),
+},
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_allo_boss = {
+       .name         = "BossDAC",
+       .owner        = THIS_MODULE,
+       .dai_link     = snd_allo_boss_dai,
+       .num_links    = ARRAY_SIZE(snd_allo_boss_dai),
+};
+
+static int snd_allo_boss_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+
+       snd_allo_boss.dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_dai_link *dai;
+
+               dai = &snd_allo_boss_dai[0];
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                                           "i2s-controller", 0);
+
+               if (i2s_node) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_node;
+               }
+
+               digital_gain_0db_limit = !of_property_read_bool(
+                       pdev->dev.of_node, "allo,24db_digital_gain");
+               slave = of_property_read_bool(pdev->dev.of_node,
+                                               "allo,slave");
+
+               mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute",
+                                                       GPIOD_OUT_LOW);
+               if (IS_ERR(mute_gpio)) {
+                       ret = PTR_ERR(mute_gpio);
+                       dev_err(&pdev->dev,
+                               "failed to get mute gpio: %d\n", ret);
+                       return ret;
+               }
+
+               if (mute_gpio)
+                       snd_allo_boss.set_bias_level =
+                               snd_allo_boss_set_bias_level;
+
+               ret = snd_soc_register_card(&snd_allo_boss);
+               if (ret) {
+                       dev_err(&pdev->dev,
+                               "snd_soc_register_card() failed: %d\n", ret);
+                       return ret;
+               }
+
+               if (mute_gpio)
+                       snd_allo_boss_gpio_mute(&snd_allo_boss);
+
+               return 0;
+       }
+
+       return -EINVAL;
+}
+
+static int snd_allo_boss_remove(struct platform_device *pdev)
+{
+       snd_allo_boss_gpio_mute(&snd_allo_boss);
+       snd_soc_unregister_card(&snd_allo_boss);
+       return 0;
+}
+
+static const struct of_device_id snd_allo_boss_of_match[] = {
+       { .compatible = "allo,boss-dac", },
+       { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, snd_allo_boss_of_match);
+
+static struct platform_driver snd_allo_boss_driver = {
+       .driver = {
+               .name   = "snd-allo-boss-dac",
+               .owner  = THIS_MODULE,
+               .of_match_table = snd_allo_boss_of_match,
+       },
+       .probe          = snd_allo_boss_probe,
+       .remove         = snd_allo_boss_remove,
+};
+
+module_platform_driver(snd_allo_boss_driver);
+
+MODULE_AUTHOR("Baswaraj K <jaikumar@cem-solutions.net>");
+MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Boss DAC");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/allo-boss2-dac.c
@@ -0,0 +1,1131 @@
+/*
+ * Driver for the ALLO KATANA CODEC
+ *
+ * Author: Jaikumar <sudeepkumar@cem-solutions.net>
+ *             Copyright 2018
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+#include <linux/of_gpio.h>
+#include <linux/regulator/consumer.h>
+#include <linux/pm_runtime.h>
+#include <linux/of_irq.h>
+#include <linux/completion.h>
+#include <linux/mutex.h>
+#include <linux/workqueue.h>
+#include <sound/jack.h>
+
+#include "../codecs/cs43130.h"
+
+#include <linux/clk.h>
+#include <linux/gcd.h>
+#define DEBUG
+
+#define CS43130_DSD_EN_MASK             0x10
+#define CS43130_PDN_DONE_INT_MASK        0x00
+
+static struct gpio_desc *snd_allo_clk44gpio;
+static struct gpio_desc *snd_allo_clk48gpio;
+
+struct  cs43130_priv {
+       struct snd_soc_component        *component;
+       struct regmap                   *regmap;
+       struct regulator_bulk_data      supplies[CS43130_NUM_SUPPLIES];
+       struct gpio_desc                *reset_gpio;
+       unsigned int                    dev_id; /* codec device ID */
+       int                             xtal_ibias;
+       /* shared by both DAIs */
+       struct mutex                    clk_mutex;
+       int                             clk_req;
+       bool                            pll_bypass;
+       struct completion               xtal_rdy;
+       struct completion               pll_rdy;
+       unsigned int                    mclk;
+       unsigned int                    mclk_int;
+       int                             mclk_int_src;
+
+       /* DAI specific */
+       struct cs43130_dai              dais[CS43130_DAI_ID_MAX];
+
+       /* HP load specific */
+       bool                            dc_meas;
+       bool                            ac_meas;
+       bool                            hpload_done;
+       struct completion               hpload_evt;
+       unsigned int                    hpload_stat;
+       u16                             hpload_dc[2];
+       u16                             dc_threshold[CS43130_DC_THRESHOLD];
+       u16                             ac_freq[CS43130_AC_FREQ];
+       u16                             hpload_ac[CS43130_AC_FREQ][2];
+       struct workqueue_struct         *wq;
+       struct work_struct              work;
+       struct snd_soc_jack             jack;
+};
+
+static const struct reg_default cs43130_reg_defaults[] = {
+       {CS43130_SYS_CLK_CTL_1, 0x06},
+       {CS43130_SP_SRATE, 0x01},
+       {CS43130_SP_BITSIZE, 0x05},
+       {CS43130_PAD_INT_CFG, 0x03},
+       {CS43130_PWDN_CTL, 0xFE},
+       {CS43130_CRYSTAL_SET, 0x04},
+       {CS43130_PLL_SET_1, 0x00},
+       {CS43130_PLL_SET_2, 0x00},
+       {CS43130_PLL_SET_3, 0x00},
+       {CS43130_PLL_SET_4, 0x00},
+       {CS43130_PLL_SET_5, 0x40},
+       {CS43130_PLL_SET_6, 0x10},
+       {CS43130_PLL_SET_7, 0x80},
+       {CS43130_PLL_SET_8, 0x03},
+       {CS43130_PLL_SET_9, 0x02},
+       {CS43130_PLL_SET_10, 0x02},
+       {CS43130_CLKOUT_CTL, 0x00},
+       {CS43130_ASP_NUM_1, 0x01},
+       {CS43130_ASP_NUM_2, 0x00},
+       {CS43130_ASP_DEN_1, 0x08},
+       {CS43130_ASP_DEN_2, 0x00},
+       {CS43130_ASP_LRCK_HI_TIME_1, 0x1F},
+       {CS43130_ASP_LRCK_HI_TIME_2, 0x00},
+       {CS43130_ASP_LRCK_PERIOD_1, 0x3F},
+       {CS43130_ASP_LRCK_PERIOD_2, 0x00},
+       {CS43130_ASP_CLOCK_CONF, 0x0C},
+       {CS43130_ASP_FRAME_CONF, 0x0A},
+       {CS43130_XSP_NUM_1, 0x01},
+       {CS43130_XSP_NUM_2, 0x00},
+       {CS43130_XSP_DEN_1, 0x02},
+       {CS43130_XSP_DEN_2, 0x00},
+       {CS43130_XSP_LRCK_HI_TIME_1, 0x1F},
+       {CS43130_XSP_LRCK_HI_TIME_2, 0x00},
+       {CS43130_XSP_LRCK_PERIOD_1, 0x3F},
+       {CS43130_XSP_LRCK_PERIOD_2, 0x00},
+       {CS43130_XSP_CLOCK_CONF, 0x0C},
+       {CS43130_XSP_FRAME_CONF, 0x0A},
+       {CS43130_ASP_CH_1_LOC, 0x00},
+       {CS43130_ASP_CH_2_LOC, 0x00},
+       {CS43130_ASP_CH_1_SZ_EN, 0x06},
+       {CS43130_ASP_CH_2_SZ_EN, 0x0E},
+       {CS43130_XSP_CH_1_LOC, 0x00},
+       {CS43130_XSP_CH_2_LOC, 0x00},
+       {CS43130_XSP_CH_1_SZ_EN, 0x06},
+       {CS43130_XSP_CH_2_SZ_EN, 0x0E},
+       {CS43130_DSD_VOL_B, 0x78},
+       {CS43130_DSD_VOL_A, 0x78},
+       {CS43130_DSD_PATH_CTL_1, 0xA8},
+       {CS43130_DSD_INT_CFG, 0x00},
+       {CS43130_DSD_PATH_CTL_2, 0x02},
+       {CS43130_DSD_PCM_MIX_CTL, 0x00},
+       {CS43130_DSD_PATH_CTL_3, 0x40},
+       {CS43130_HP_OUT_CTL_1, 0x30},
+       {CS43130_PCM_FILT_OPT, 0x02},
+       {CS43130_PCM_VOL_B, 0x78},
+       {CS43130_PCM_VOL_A, 0x78},
+       {CS43130_PCM_PATH_CTL_1, 0xA8},
+       {CS43130_PCM_PATH_CTL_2, 0x00},
+       {CS43130_CLASS_H_CTL, 0x1E},
+       {CS43130_HP_DETECT, 0x04},
+       {CS43130_HP_LOAD_1, 0x00},
+       {CS43130_HP_MEAS_LOAD_1, 0x00},
+       {CS43130_HP_MEAS_LOAD_2, 0x00},
+       {CS43130_INT_MASK_1, 0xFF},
+       {CS43130_INT_MASK_2, 0xFF},
+       {CS43130_INT_MASK_3, 0xFF},
+       {CS43130_INT_MASK_4, 0xFF},
+       {CS43130_INT_MASK_5, 0xFF},
+};
+static bool cs43130_volatile_register(struct device *dev, unsigned int reg)
+{
+       switch (reg) {
+       case CS43130_INT_STATUS_1 ... CS43130_INT_STATUS_5:
+       case CS43130_HP_DC_STAT_1 ... CS43130_HP_DC_STAT_2:
+       case CS43130_HP_AC_STAT_1 ... CS43130_HP_AC_STAT_2:
+               return true;
+       default:
+               return false;
+       }
+}
+
+static const char * const pcm_spd_texts[] = {
+       "Fast",
+       "Slow",
+};
+
+static SOC_ENUM_SINGLE_DECL(pcm_spd_enum, CS43130_PCM_FILT_OPT, 7,
+                       pcm_spd_texts);
+
+static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(master_tlv, -12750, 0);
+
+static const struct snd_kcontrol_new cs43130_controls[] = {
+       SOC_DOUBLE_R_TLV("Master Playback Volume", CS43130_PCM_VOL_B,
+                       CS43130_PCM_VOL_A, 0, 255, 1, master_tlv),
+       SOC_DOUBLE("Master Playback Switch", CS43130_PCM_PATH_CTL_1,
+                       0, 1, 1, 1),
+       SOC_DOUBLE_R_TLV("Digital Playback Volume", CS43130_DSD_VOL_B,
+                       CS43130_DSD_VOL_A, 0, 255, 1, master_tlv),
+       SOC_DOUBLE("Digital Playback Switch", CS43130_DSD_PATH_CTL_1,
+                       0, 1, 1, 1),
+       SOC_SINGLE("HV_Enable", CS43130_HP_OUT_CTL_1, 0, 1, 0),
+       SOC_ENUM("PCM Filter Speed", pcm_spd_enum),
+       SOC_SINGLE("PCM Phase Compensation", CS43130_PCM_FILT_OPT, 6, 1, 0),
+       SOC_SINGLE("PCM Nonoversample Emulate", CS43130_PCM_FILT_OPT, 5, 1, 0),
+       SOC_SINGLE("PCM High-pass Filter", CS43130_PCM_FILT_OPT, 1, 1, 0),
+       SOC_SINGLE("PCM De-emphasis Filter", CS43130_PCM_FILT_OPT, 0, 1, 0),
+};
+
+static bool cs43130_readable_register(struct device *dev, unsigned int reg)
+{
+       switch (reg) {
+       case CS43130_DEVID_AB ... CS43130_SYS_CLK_CTL_1:
+       case CS43130_SP_SRATE ... CS43130_PAD_INT_CFG:
+       case CS43130_PWDN_CTL:
+       case CS43130_CRYSTAL_SET:
+       case CS43130_PLL_SET_1 ... CS43130_PLL_SET_5:
+       case CS43130_PLL_SET_6:
+       case CS43130_PLL_SET_7:
+       case CS43130_PLL_SET_8:
+       case CS43130_PLL_SET_9:
+       case CS43130_PLL_SET_10:
+       case CS43130_CLKOUT_CTL:
+       case CS43130_ASP_NUM_1 ... CS43130_ASP_FRAME_CONF:
+       case CS43130_XSP_NUM_1 ... CS43130_XSP_FRAME_CONF:
+       case CS43130_ASP_CH_1_LOC:
+       case CS43130_ASP_CH_2_LOC:
+       case CS43130_ASP_CH_1_SZ_EN:
+       case CS43130_ASP_CH_2_SZ_EN:
+       case CS43130_XSP_CH_1_LOC:
+       case CS43130_XSP_CH_2_LOC:
+       case CS43130_XSP_CH_1_SZ_EN:
+       case CS43130_XSP_CH_2_SZ_EN:
+       case CS43130_DSD_VOL_B ... CS43130_DSD_PATH_CTL_3:
+       case CS43130_HP_OUT_CTL_1:
+       case CS43130_PCM_FILT_OPT ... CS43130_PCM_PATH_CTL_2:
+       case CS43130_CLASS_H_CTL:
+       case CS43130_HP_DETECT:
+       case CS43130_HP_STATUS:
+       case CS43130_HP_LOAD_1:
+       case CS43130_HP_MEAS_LOAD_1:
+       case CS43130_HP_MEAS_LOAD_2:
+       case CS43130_HP_DC_STAT_1:
+       case CS43130_HP_DC_STAT_2:
+       case CS43130_HP_AC_STAT_1:
+       case CS43130_HP_AC_STAT_2:
+       case CS43130_HP_LOAD_STAT:
+       case CS43130_INT_STATUS_1 ... CS43130_INT_STATUS_5:
+       case CS43130_INT_MASK_1 ... CS43130_INT_MASK_5:
+               return true;
+       default:
+               return false;
+       }
+}
+static bool cs43130_precious_register(struct device *dev, unsigned int reg)
+{
+       switch (reg) {
+       case CS43130_INT_STATUS_1 ... CS43130_INT_STATUS_5:
+               return true;
+       default:
+               return false;
+       }
+}
+static int cs43130_pcm_pdn(struct snd_soc_component *component)
+{
+       struct cs43130_priv *cs43130 =
+                               snd_soc_component_get_drvdata(component);
+       int ret;
+       unsigned int reg, pdn_int;
+
+       regmap_write(cs43130->regmap, CS43130_DSD_PATH_CTL_2, 0x02);
+       regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
+                       CS43130_PDN_DONE_INT_MASK, 0);
+       regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
+                       CS43130_PDN_HP_MASK, 1 << CS43130_PDN_HP_SHIFT);
+       usleep_range(10, 50);
+       ret = regmap_read(cs43130->regmap, CS43130_INT_STATUS_1, &reg);
+       pdn_int = reg & 0xFE;
+       regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
+                       CS43130_PDN_ASP_MASK, 1 << CS43130_PDN_ASP_SHIFT);
+       return 0;
+
+}
+static int cs43130_pwr_up_asp_dac(struct snd_soc_component *component)
+{
+       struct cs43130_priv *cs43130 =
+                               snd_soc_component_get_drvdata(component);
+
+       regmap_update_bits(cs43130->regmap, CS43130_PAD_INT_CFG,
+                       CS43130_ASP_3ST_MASK, 0);
+       regmap_write(cs43130->regmap, CS43130_DXD1, 0x99);
+       regmap_write(cs43130->regmap, CS43130_DXD13, 0x20);
+       regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
+                       CS43130_PDN_ASP_MASK, 0);
+       regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
+                       CS43130_PDN_HP_MASK, 0);
+       usleep_range(10000, 12000);
+       regmap_write(cs43130->regmap, CS43130_DXD1, 0x00);
+       regmap_write(cs43130->regmap, CS43130_DXD13, 0x00);
+       return 0;
+}
+static int cs43130_change_clksrc(struct snd_soc_component *component,
+                               enum cs43130_mclk_src_sel src)
+{
+       int ret;
+       struct cs43130_priv *cs43130 =
+                               snd_soc_component_get_drvdata(component);
+       int mclk_int_decoded;
+
+       if (src == cs43130->mclk_int_src) {
+               /* clk source has not changed */
+               return 0;
+       }
+       switch (cs43130->mclk_int) {
+       case CS43130_MCLK_22M:
+               mclk_int_decoded = CS43130_MCLK_22P5;
+               break;
+       case CS43130_MCLK_24M:
+               mclk_int_decoded = CS43130_MCLK_24P5;
+               break;
+       default:
+               dev_err(component->dev, "Invalid MCLK INT freq: %u\n",
+                       cs43130->mclk_int);
+               return -EINVAL;
+       }
+
+       switch (src) {
+       case CS43130_MCLK_SRC_EXT:
+               cs43130->pll_bypass = true;
+               cs43130->mclk_int_src = CS43130_MCLK_SRC_EXT;
+               if (cs43130->xtal_ibias == CS43130_XTAL_UNUSED) {
+                       regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
+                                       CS43130_PDN_XTAL_MASK,
+                                       1 << CS43130_PDN_XTAL_SHIFT);
+               } else {
+                       reinit_completion(&cs43130->xtal_rdy);
+                       regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
+                                       CS43130_XTAL_RDY_INT_MASK, 0);
+                       regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
+                                       CS43130_PDN_XTAL_MASK, 0);
+                       ret = wait_for_completion_timeout(&cs43130->xtal_rdy,
+                                       msecs_to_jiffies(100));
+                       regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
+                                       CS43130_XTAL_RDY_INT_MASK,
+                                       1 << CS43130_XTAL_RDY_INT_SHIFT);
+                       if (ret == 0) {
+                               dev_err(component->dev, "Timeout waiting for XTAL_READY interrupt\n");
+                               return -ETIMEDOUT;
+                       }
+               }
+       regmap_update_bits(cs43130->regmap, CS43130_SYS_CLK_CTL_1,
+                               CS43130_MCLK_SRC_SEL_MASK,
+                               src << CS43130_MCLK_SRC_SEL_SHIFT);
+       regmap_update_bits(cs43130->regmap, CS43130_SYS_CLK_CTL_1,
+                               CS43130_MCLK_INT_MASK,
+                               mclk_int_decoded << CS43130_MCLK_INT_SHIFT);
+       usleep_range(150, 200);
+       regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
+                               CS43130_PDN_PLL_MASK,
+                               1 << CS43130_PDN_PLL_SHIFT);
+       break;
+       case CS43130_MCLK_SRC_RCO:
+               cs43130->mclk_int_src = CS43130_MCLK_SRC_RCO;
+
+               regmap_update_bits(cs43130->regmap, CS43130_SYS_CLK_CTL_1,
+                               CS43130_MCLK_SRC_SEL_MASK,
+                               src << CS43130_MCLK_SRC_SEL_SHIFT);
+               regmap_update_bits(cs43130->regmap, CS43130_SYS_CLK_CTL_1,
+                               CS43130_MCLK_INT_MASK,
+                               CS43130_MCLK_22P5 << CS43130_MCLK_INT_SHIFT);
+               usleep_range(150, 200);
+               regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
+                               CS43130_PDN_XTAL_MASK,
+                               1 << CS43130_PDN_XTAL_SHIFT);
+               regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
+                               CS43130_PDN_PLL_MASK,
+                               1 << CS43130_PDN_PLL_SHIFT);
+       break;
+       default:
+               dev_err(component->dev, "Invalid MCLK source value\n");
+               return -EINVAL;
+       }
+
+       return 0;
+}
+static const struct cs43130_bitwidth_map cs43130_bitwidth_table[] = {
+       {8,     CS43130_SP_BIT_SIZE_8,  CS43130_CH_BIT_SIZE_8},
+       {16,    CS43130_SP_BIT_SIZE_16, CS43130_CH_BIT_SIZE_16},
+       {24,    CS43130_SP_BIT_SIZE_24, CS43130_CH_BIT_SIZE_24},
+       {32,    CS43130_SP_BIT_SIZE_32, CS43130_CH_BIT_SIZE_32},
+};
+
+static const struct cs43130_bitwidth_map *cs43130_get_bitwidth_table(
+                                       unsigned int bitwidth)
+{
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(cs43130_bitwidth_table); i++) {
+               if (cs43130_bitwidth_table[i].bitwidth == bitwidth)
+                       return &cs43130_bitwidth_table[i];
+       }
+
+       return NULL;
+}
+static int cs43130_set_bitwidth(int dai_id, unsigned int bitwidth_dai,
+                               struct regmap *regmap)
+{
+       const struct cs43130_bitwidth_map *bw_map;
+
+       bw_map = cs43130_get_bitwidth_table(bitwidth_dai);
+       if (!bw_map)
+               return -EINVAL;
+
+       switch (dai_id) {
+       case CS43130_ASP_PCM_DAI:
+       case CS43130_ASP_DOP_DAI:
+               regmap_update_bits(regmap, CS43130_ASP_CH_1_SZ_EN,
+                               CS43130_CH_BITSIZE_MASK, bw_map->ch_bit);
+               regmap_update_bits(regmap, CS43130_ASP_CH_2_SZ_EN,
+                               CS43130_CH_BITSIZE_MASK, bw_map->ch_bit);
+               regmap_update_bits(regmap, CS43130_SP_BITSIZE,
+                               CS43130_ASP_BITSIZE_MASK, bw_map->sp_bit);
+               break;
+       case CS43130_XSP_DOP_DAI:
+               regmap_update_bits(regmap, CS43130_XSP_CH_1_SZ_EN,
+                               CS43130_CH_BITSIZE_MASK, bw_map->ch_bit);
+               regmap_update_bits(regmap, CS43130_XSP_CH_2_SZ_EN,
+                               CS43130_CH_BITSIZE_MASK, bw_map->ch_bit);
+               regmap_update_bits(regmap, CS43130_SP_BITSIZE,
+                               CS43130_XSP_BITSIZE_MASK, bw_map->sp_bit <<
+                               CS43130_XSP_BITSIZE_SHIFT);
+       break;
+       default:
+               return -EINVAL;
+       }
+
+       return 0;
+}
+static const struct cs43130_rate_map cs43130_rate_table[] = {
+       {32000,         CS43130_ASP_SPRATE_32K},
+       {44100,         CS43130_ASP_SPRATE_44_1K},
+       {48000,         CS43130_ASP_SPRATE_48K},
+       {88200,         CS43130_ASP_SPRATE_88_2K},
+       {96000,         CS43130_ASP_SPRATE_96K},
+       {176400,        CS43130_ASP_SPRATE_176_4K},
+       {192000,        CS43130_ASP_SPRATE_192K},
+       {352800,        CS43130_ASP_SPRATE_352_8K},
+       {384000,        CS43130_ASP_SPRATE_384K},
+};
+
+static const struct cs43130_rate_map *cs43130_get_rate_table(int fs)
+{
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(cs43130_rate_table); i++) {
+               if (cs43130_rate_table[i].fs == fs)
+                       return &cs43130_rate_table[i];
+       }
+
+       return NULL;
+}
+
+static const struct cs43130_clk_gen *cs43130_get_clk_gen(int mclk_int, int fs,
+       const struct cs43130_clk_gen *clk_gen_table, int len_clk_gen_table)
+{
+       int i;
+
+       for (i = 0; i < len_clk_gen_table; i++) {
+               if (clk_gen_table[i].mclk_int == mclk_int &&
+                                       clk_gen_table[i].fs == fs)
+                       return &clk_gen_table[i];
+       }
+       return NULL;
+}
+
+static int cs43130_set_sp_fmt(int dai_id, unsigned int bitwidth_sclk,
+                               struct snd_pcm_hw_params *params,
+                               struct cs43130_priv *cs43130)
+{
+       u16 frm_size;
+       u16 hi_size;
+       u8 frm_delay;
+       u8 frm_phase;
+       u8 frm_data;
+       u8 sclk_edge;
+       u8 lrck_edge;
+       u8 clk_data;
+       u8 loc_ch1;
+       u8 loc_ch2;
+       u8 dai_mode_val;
+       const struct cs43130_clk_gen *clk_gen;
+
+       switch (cs43130->dais[dai_id].dai_format) {
+       case SND_SOC_DAIFMT_I2S:
+               hi_size = bitwidth_sclk;
+               frm_delay = 2;
+               frm_phase = 0;
+               break;
+       case SND_SOC_DAIFMT_LEFT_J:
+               hi_size = bitwidth_sclk;
+               frm_delay = 2;
+               frm_phase = 1;
+               break;
+       case SND_SOC_DAIFMT_DSP_A:
+               hi_size = 1;
+               frm_delay = 2;
+               frm_phase = 1;
+               break;
+       case SND_SOC_DAIFMT_DSP_B:
+               hi_size = 1;
+               frm_delay = 0;
+               frm_phase = 1;
+               break;
+       default:
+               return -EINVAL;
+       }
+       switch (cs43130->dais[dai_id].dai_mode) {
+       case SND_SOC_DAIFMT_CBS_CFS:
+               dai_mode_val = 0;
+               break;
+       case SND_SOC_DAIFMT_CBM_CFM:
+               dai_mode_val = 1;
+               break;
+       default:
+               return -EINVAL;
+       }
+
+       frm_size = bitwidth_sclk * params_channels(params);
+       sclk_edge = 1;
+       lrck_edge = 0;
+       loc_ch1 = 0;
+       loc_ch2 = bitwidth_sclk * (params_channels(params) - 1);
+
+       frm_data = frm_delay & CS43130_SP_FSD_MASK;
+       frm_data |= (frm_phase << CS43130_SP_STP_SHIFT) & CS43130_SP_STP_MASK;
+
+       clk_data = lrck_edge & CS43130_SP_LCPOL_IN_MASK;
+       clk_data |= (lrck_edge << CS43130_SP_LCPOL_OUT_SHIFT) &
+                       CS43130_SP_LCPOL_OUT_MASK;
+       clk_data |= (sclk_edge << CS43130_SP_SCPOL_IN_SHIFT) &
+                       CS43130_SP_SCPOL_IN_MASK;
+       clk_data |= (sclk_edge << CS43130_SP_SCPOL_OUT_SHIFT) &
+                       CS43130_SP_SCPOL_OUT_MASK;
+       clk_data |= (dai_mode_val << CS43130_SP_MODE_SHIFT) &
+                       CS43130_SP_MODE_MASK;
+       switch (dai_id) {
+       case CS43130_ASP_PCM_DAI:
+       case CS43130_ASP_DOP_DAI:
+               regmap_update_bits(cs43130->regmap, CS43130_ASP_LRCK_PERIOD_1,
+                       CS43130_SP_LCPR_DATA_MASK, (frm_size - 1) >>
+                       CS43130_SP_LCPR_LSB_DATA_SHIFT);
+               regmap_update_bits(cs43130->regmap, CS43130_ASP_LRCK_PERIOD_2,
+                       CS43130_SP_LCPR_DATA_MASK, (frm_size - 1) >>
+                       CS43130_SP_LCPR_MSB_DATA_SHIFT);
+               regmap_update_bits(cs43130->regmap, CS43130_ASP_LRCK_HI_TIME_1,
+                       CS43130_SP_LCHI_DATA_MASK, (hi_size - 1) >>
+                       CS43130_SP_LCHI_LSB_DATA_SHIFT);
+               regmap_update_bits(cs43130->regmap, CS43130_ASP_LRCK_HI_TIME_2,
+                       CS43130_SP_LCHI_DATA_MASK, (hi_size - 1) >>
+                       CS43130_SP_LCHI_MSB_DATA_SHIFT);
+               regmap_write(cs43130->regmap, CS43130_ASP_FRAME_CONF, frm_data);
+               regmap_write(cs43130->regmap, CS43130_ASP_CH_1_LOC, loc_ch1);
+               regmap_write(cs43130->regmap, CS43130_ASP_CH_2_LOC, loc_ch2);
+               regmap_update_bits(cs43130->regmap, CS43130_ASP_CH_1_SZ_EN,
+                       CS43130_CH_EN_MASK, 1 << CS43130_CH_EN_SHIFT);
+               regmap_update_bits(cs43130->regmap, CS43130_ASP_CH_2_SZ_EN,
+                       CS43130_CH_EN_MASK, 1 << CS43130_CH_EN_SHIFT);
+               regmap_write(cs43130->regmap, CS43130_ASP_CLOCK_CONF, clk_data);
+               break;
+       case CS43130_XSP_DOP_DAI:
+               regmap_update_bits(cs43130->regmap, CS43130_XSP_LRCK_PERIOD_1,
+                       CS43130_SP_LCPR_DATA_MASK, (frm_size - 1) >>
+                       CS43130_SP_LCPR_LSB_DATA_SHIFT);
+               regmap_update_bits(cs43130->regmap, CS43130_XSP_LRCK_PERIOD_2,
+                       CS43130_SP_LCPR_DATA_MASK, (frm_size - 1) >>
+                       CS43130_SP_LCPR_MSB_DATA_SHIFT);
+               regmap_update_bits(cs43130->regmap, CS43130_XSP_LRCK_HI_TIME_1,
+                       CS43130_SP_LCHI_DATA_MASK, (hi_size - 1) >>
+                       CS43130_SP_LCHI_LSB_DATA_SHIFT);
+               regmap_update_bits(cs43130->regmap, CS43130_XSP_LRCK_HI_TIME_2,
+                       CS43130_SP_LCHI_DATA_MASK, (hi_size - 1) >>
+                       CS43130_SP_LCHI_MSB_DATA_SHIFT);
+               regmap_write(cs43130->regmap, CS43130_XSP_FRAME_CONF, frm_data);
+               regmap_write(cs43130->regmap, CS43130_XSP_CH_1_LOC, loc_ch1);
+               regmap_write(cs43130->regmap, CS43130_XSP_CH_2_LOC, loc_ch2);
+               regmap_update_bits(cs43130->regmap, CS43130_XSP_CH_1_SZ_EN,
+                       CS43130_CH_EN_MASK, 1 << CS43130_CH_EN_SHIFT);
+               regmap_update_bits(cs43130->regmap, CS43130_XSP_CH_2_SZ_EN,
+                       CS43130_CH_EN_MASK, 1 << CS43130_CH_EN_SHIFT);
+               regmap_write(cs43130->regmap, CS43130_XSP_CLOCK_CONF, clk_data);
+               break;
+       default:
+               return -EINVAL;
+       }
+       switch (frm_size) {
+       case 16:
+               clk_gen = cs43130_get_clk_gen(cs43130->mclk_int,
+                                               params_rate(params),
+                                               cs43130_16_clk_gen,
+                                               ARRAY_SIZE(cs43130_16_clk_gen));
+               break;
+       case 32:
+               clk_gen = cs43130_get_clk_gen(cs43130->mclk_int,
+                                               params_rate(params),
+                                               cs43130_32_clk_gen,
+                                               ARRAY_SIZE(cs43130_32_clk_gen));
+               break;
+       case 48:
+               clk_gen = cs43130_get_clk_gen(cs43130->mclk_int,
+                                               params_rate(params),
+                                               cs43130_48_clk_gen,
+                                               ARRAY_SIZE(cs43130_48_clk_gen));
+               break;
+       case 64:
+               clk_gen = cs43130_get_clk_gen(cs43130->mclk_int,
+                                               params_rate(params),
+                                               cs43130_64_clk_gen,
+                                               ARRAY_SIZE(cs43130_64_clk_gen));
+               break;
+       default:
+               return -EINVAL;
+       }
+       if (!clk_gen)
+               return -EINVAL;
+       switch (dai_id) {
+       case CS43130_ASP_PCM_DAI:
+       case CS43130_ASP_DOP_DAI:
+               regmap_write(cs43130->regmap, CS43130_ASP_DEN_1,
+                               (clk_gen->v.denominator & CS43130_SP_M_LSB_DATA_MASK) >>
+                               CS43130_SP_M_LSB_DATA_SHIFT);
+               regmap_write(cs43130->regmap, CS43130_ASP_DEN_2,
+                               (clk_gen->v.denominator & CS43130_SP_M_MSB_DATA_MASK) >>
+                               CS43130_SP_M_MSB_DATA_SHIFT);
+               regmap_write(cs43130->regmap, CS43130_ASP_NUM_1,
+                               (clk_gen->v.numerator & CS43130_SP_N_LSB_DATA_MASK) >>
+                               CS43130_SP_N_LSB_DATA_SHIFT);
+               regmap_write(cs43130->regmap, CS43130_ASP_NUM_2,
+                               (clk_gen->v.numerator & CS43130_SP_N_MSB_DATA_MASK) >>
+                               CS43130_SP_N_MSB_DATA_SHIFT);
+               break;
+       case CS43130_XSP_DOP_DAI:
+               regmap_write(cs43130->regmap, CS43130_XSP_DEN_1,
+                               (clk_gen->v.denominator & CS43130_SP_M_LSB_DATA_MASK) >>
+                               CS43130_SP_M_LSB_DATA_SHIFT);
+               regmap_write(cs43130->regmap, CS43130_XSP_DEN_2,
+                               (clk_gen->v.denominator & CS43130_SP_M_MSB_DATA_MASK) >>
+                               CS43130_SP_M_MSB_DATA_SHIFT);
+               regmap_write(cs43130->regmap, CS43130_XSP_NUM_1,
+                               (clk_gen->v.numerator & CS43130_SP_N_LSB_DATA_MASK) >>
+                               CS43130_SP_N_LSB_DATA_SHIFT);
+               regmap_write(cs43130->regmap, CS43130_XSP_NUM_2,
+                               (clk_gen->v.numerator & CS43130_SP_N_MSB_DATA_MASK) >>
+                               CS43130_SP_N_MSB_DATA_SHIFT);
+               break;
+       default:
+               return -EINVAL;
+       }
+       return 0;
+}
+
+static int cs43130_hw_params(struct snd_pcm_substream *substream,
+                               struct snd_pcm_hw_params *params,
+                               struct snd_soc_dai *dai)
+{
+       struct snd_soc_component *component = dai->component;
+       struct cs43130_priv *cs43130 =
+                               snd_soc_component_get_drvdata(component);
+       const struct cs43130_rate_map *rate_map;
+       unsigned int sclk = cs43130->dais[dai->id].sclk;
+       unsigned int bitwidth_sclk;
+       unsigned int bitwidth_dai = (unsigned int)(params_width(params));
+       unsigned int dop_rate = (unsigned int)(params_rate(params));
+       unsigned int required_clk, ret;
+       u8 dsd_speed;
+
+       cs43130->pll_bypass = true;
+       cs43130_pcm_pdn(component);
+       mutex_lock(&cs43130->clk_mutex);
+       if (!cs43130->clk_req) {
+               /* no DAI is currently using clk */
+               if (!(CS43130_MCLK_22M % params_rate(params))) {
+                       required_clk = CS43130_MCLK_22M;
+                       cs43130->mclk_int =  CS43130_MCLK_22M;
+                       gpiod_set_value_cansleep(snd_allo_clk44gpio, 1);
+                       gpiod_set_value_cansleep(snd_allo_clk48gpio, 0);
+                       usleep_range(13500, 14000);
+               } else {
+                       required_clk = CS43130_MCLK_24M;
+                       cs43130->mclk_int =  CS43130_MCLK_24M;
+                       gpiod_set_value_cansleep(snd_allo_clk48gpio, 1);
+                       gpiod_set_value_cansleep(snd_allo_clk44gpio, 0);
+                       usleep_range(13500, 14000);
+               }
+               if (cs43130->pll_bypass)
+                       cs43130_change_clksrc(component, CS43130_MCLK_SRC_EXT);
+               else
+                       cs43130_change_clksrc(component, CS43130_MCLK_SRC_PLL);
+       }
+
+       cs43130->clk_req++;
+       mutex_unlock(&cs43130->clk_mutex);
+
+       switch (dai->id) {
+       case CS43130_ASP_DOP_DAI:
+       case CS43130_XSP_DOP_DAI:
+               /* DoP bitwidth is always 24-bit */
+               bitwidth_dai = 24;
+               sclk = params_rate(params) * bitwidth_dai *
+                               params_channels(params);
+
+               switch (params_rate(params)) {
+               case 176400:
+                       dsd_speed = 0;
+                       break;
+               case 352800:
+                       dsd_speed = 1;
+                       break;
+               default:
+                       dev_err(component->dev, "Rate(%u) not supported\n",
+                               params_rate(params));
+                       return -EINVAL;
+               }
+
+               regmap_update_bits(cs43130->regmap, CS43130_DSD_PATH_CTL_2,
+                                       CS43130_DSD_SPEED_MASK,
+                                       dsd_speed << CS43130_DSD_SPEED_SHIFT);
+               break;
+       case CS43130_ASP_PCM_DAI:
+               rate_map = cs43130_get_rate_table(params_rate(params));
+               if (!rate_map)
+                       return -EINVAL;
+
+               regmap_write(cs43130->regmap, CS43130_SP_SRATE, rate_map->val);
+               if ((dop_rate == 176400) && (bitwidth_dai == 24)) {
+                       dsd_speed = 0;
+                       regmap_update_bits(cs43130->regmap,
+                                       CS43130_DSD_PATH_CTL_2,
+                                       CS43130_DSD_SPEED_MASK,
+                                       dsd_speed << CS43130_DSD_SPEED_SHIFT);
+                       regmap_update_bits(cs43130->regmap,
+                                       CS43130_DSD_PATH_CTL_2,
+                                       CS43130_DSD_SRC_MASK,
+                                       CS43130_DSD_SRC_ASP <<
+                                       CS43130_DSD_SRC_SHIFT);
+                       regmap_update_bits(cs43130->regmap,
+                                       CS43130_DSD_PATH_CTL_2,
+                                       CS43130_DSD_EN_MASK, 0x01 <<
+                                       CS43130_DSD_EN_SHIFT);
+               }
+               break;
+       default:
+               dev_err(component->dev, "Invalid DAI (%d)\n", dai->id);
+               return -EINVAL;
+       }
+
+       switch (dai->id) {
+       case CS43130_ASP_DOP_DAI:
+               regmap_update_bits(cs43130->regmap, CS43130_DSD_PATH_CTL_2,
+                               CS43130_DSD_SRC_MASK, CS43130_DSD_SRC_ASP <<
+                               CS43130_DSD_SRC_SHIFT);
+               regmap_update_bits(cs43130->regmap, CS43130_DSD_PATH_CTL_2,
+                               CS43130_DSD_EN_MASK, 0x01 <<
+                               CS43130_DSD_EN_SHIFT);
+               break;
+       case CS43130_XSP_DOP_DAI:
+               regmap_update_bits(cs43130->regmap, CS43130_DSD_PATH_CTL_2,
+                               CS43130_DSD_SRC_MASK, CS43130_DSD_SRC_XSP <<
+                               CS43130_DSD_SRC_SHIFT);
+               break;
+       }
+       if (!sclk && cs43130->dais[dai->id].dai_mode ==
+                                               SND_SOC_DAIFMT_CBM_CFM) {
+               /* Calculate SCLK in master mode if unassigned */
+               sclk = params_rate(params) * bitwidth_dai *
+                               params_channels(params);
+       }
+       if (!sclk) {
+               /* at this point, SCLK must be set */
+               dev_err(component->dev, "SCLK freq is not set\n");
+               return -EINVAL;
+       }
+
+       bitwidth_sclk = (sclk / params_rate(params)) / params_channels(params);
+       if (bitwidth_sclk < bitwidth_dai) {
+               dev_err(component->dev, "Format not supported: SCLK freq is too low\n");
+               return -EINVAL;
+       }
+
+       dev_dbg(component->dev,
+               "sclk = %u, fs = %d, bitwidth_dai = %u\n",
+               sclk, params_rate(params), bitwidth_dai);
+
+       dev_dbg(component->dev,
+               "bitwidth_sclk = %u, num_ch = %u\n",
+               bitwidth_sclk, params_channels(params));
+
+       cs43130_set_bitwidth(dai->id, bitwidth_dai, cs43130->regmap);
+       cs43130_set_sp_fmt(dai->id, bitwidth_sclk, params, cs43130);
+       ret = cs43130_pwr_up_asp_dac(component);
+       return 0;
+}
+
+static int cs43130_hw_free(struct snd_pcm_substream *substream,
+                                       struct snd_soc_dai *dai)
+{
+       struct snd_soc_component *component = dai->component;
+       struct cs43130_priv *cs43130 =
+                               snd_soc_component_get_drvdata(component);
+
+       mutex_lock(&cs43130->clk_mutex);
+       cs43130->clk_req--;
+       if (!cs43130->clk_req) {
+               /* no DAI is currently using clk */
+               cs43130_change_clksrc(component, CS43130_MCLK_SRC_RCO);
+               cs43130_pcm_pdn(component);
+       }
+       mutex_unlock(&cs43130->clk_mutex);
+
+       return 0;
+}
+
+static const unsigned int cs43130_asp_src_rates[] = {
+       32000, 44100, 48000, 88200, 96000, 176400, 192000
+};
+
+static const struct snd_pcm_hw_constraint_list cs43130_asp_constraints = {
+       .count  = ARRAY_SIZE(cs43130_asp_src_rates),
+       .list   = cs43130_asp_src_rates,
+};
+
+static int cs43130_pcm_startup(struct snd_pcm_substream *substream,
+                                       struct snd_soc_dai *dai)
+{
+       return snd_pcm_hw_constraint_list(substream->runtime, 0,
+                                       SNDRV_PCM_HW_PARAM_RATE,
+                                       &cs43130_asp_constraints);
+}
+
+static int cs43130_pcm_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
+{
+       struct snd_soc_component *component = codec_dai->component;
+       struct cs43130_priv *cs43130 =
+                               snd_soc_component_get_drvdata(component);
+
+       switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+       case SND_SOC_DAIFMT_CBS_CFS:
+               cs43130->dais[codec_dai->id].dai_mode = SND_SOC_DAIFMT_CBS_CFS;
+               break;
+       case SND_SOC_DAIFMT_CBM_CFM:
+               cs43130->dais[codec_dai->id].dai_mode = SND_SOC_DAIFMT_CBM_CFM;
+               break;
+       default:
+               dev_err(component->dev, "unsupported mode\n");
+               return -EINVAL;
+       }
+
+       switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+       case SND_SOC_DAIFMT_I2S:
+               cs43130->dais[codec_dai->id].dai_format = SND_SOC_DAIFMT_I2S;
+               break;
+       case SND_SOC_DAIFMT_LEFT_J:
+               cs43130->dais[codec_dai->id].dai_format = SND_SOC_DAIFMT_LEFT_J;
+               break;
+       default:
+               dev_err(component->dev,
+                       "unsupported audio format\n");
+               return -EINVAL;
+       }
+
+       dev_dbg(component->dev, "dai_id = %d,  dai_mode = %u, dai_format = %u\n",
+                       codec_dai->id,
+                       cs43130->dais[codec_dai->id].dai_mode,
+                       cs43130->dais[codec_dai->id].dai_format);
+
+       return 0;
+}
+
+static int cs43130_set_sysclk(struct snd_soc_dai *codec_dai,
+                                       int clk_id, unsigned int freq, int dir)
+{
+       struct snd_soc_component *component = codec_dai->component;
+       struct cs43130_priv *cs43130 =
+                               snd_soc_component_get_drvdata(component);
+
+       cs43130->dais[codec_dai->id].sclk = freq;
+       dev_dbg(component->dev, "dai_id = %d,  sclk = %u\n", codec_dai->id,
+                               cs43130->dais[codec_dai->id].sclk);
+
+       return 0;
+}
+
+static int cs43130_component_set_sysclk(struct snd_soc_component *component,
+                                       int clk_id, int source,
+                                       unsigned int freq, int dir)
+{
+       struct cs43130_priv *cs43130 =
+                               snd_soc_component_get_drvdata(component);
+
+       dev_dbg(component->dev, "clk_id = %d, source = %d, freq = %d, dir = %d\n",
+               clk_id, source, freq, dir);
+
+       switch (freq) {
+       case CS43130_MCLK_22M:
+       case CS43130_MCLK_24M:
+               cs43130->mclk = freq;
+               break;
+       default:
+               dev_err(component->dev, "Invalid MCLK INT freq: %u\n", freq);
+               return -EINVAL;
+       }
+
+       if (source == CS43130_MCLK_SRC_EXT) {
+               cs43130->pll_bypass = true;
+       } else {
+               dev_err(component->dev, "Invalid MCLK source\n");
+               return -EINVAL;
+       }
+
+       return 0;
+}
+static u16 const cs43130_ac_freq[CS43130_AC_FREQ] = {
+       24,
+       43,
+       93,
+       200,
+       431,
+       928,
+       2000,
+       4309,
+       9283,
+       20000,
+};
+static const struct snd_soc_dai_ops cs43130_dai_ops = {
+       .startup        = cs43130_pcm_startup,
+       .hw_params      = cs43130_hw_params,
+       .hw_free        = cs43130_hw_free,
+       .set_sysclk     = cs43130_set_sysclk,
+       .set_fmt        = cs43130_pcm_set_fmt,
+};
+
+static struct snd_soc_dai_driver cs43130_codec_dai = {
+       .name = "allo-cs43130",
+       .playback = {
+               .stream_name = "Playback",
+               .channels_min = 2,
+               .channels_max = 2,
+               .rates = SNDRV_PCM_RATE_CONTINUOUS,
+               .rate_min = 44100,
+               .rate_max = 192000,
+               .formats = SNDRV_PCM_FMTBIT_S16_LE |
+                       SNDRV_PCM_FMTBIT_S24_LE |
+                       SNDRV_PCM_FMTBIT_S32_LE
+
+       },
+       .ops = &cs43130_dai_ops,
+};
+
+static struct snd_soc_component_driver cs43130_component_driver = {
+       .idle_bias_on           = true,
+       .controls               = cs43130_controls,
+       .num_controls           = ARRAY_SIZE(cs43130_controls),
+       .set_sysclk             = cs43130_component_set_sysclk,
+       .idle_bias_on           = 1,
+       .use_pmdown_time        = 1,
+       .endianness             = 1,
+};
+
+static const struct regmap_config cs43130_regmap = {
+       .reg_bits               = 24,
+       .pad_bits               = 8,
+       .val_bits               = 8,
+
+       .max_register           = CS43130_LASTREG,
+       .reg_defaults           = cs43130_reg_defaults,
+       .num_reg_defaults       = ARRAY_SIZE(cs43130_reg_defaults),
+       .readable_reg           = cs43130_readable_register,
+       .precious_reg           = cs43130_precious_register,
+       .volatile_reg           = cs43130_volatile_register,
+       .cache_type             = REGCACHE_RBTREE,
+       /* needed for regcache_sync */
+       .use_single_read        = true,
+       .use_single_write       = true,
+};
+
+static u16 const cs43130_dc_threshold[CS43130_DC_THRESHOLD] = {
+       50,
+       120,
+};
+
+static int cs43130_handle_device_data(struct i2c_client *i2c_client,
+                                       struct cs43130_priv *cs43130)
+{
+       struct device_node *np = i2c_client->dev.of_node;
+       unsigned int val;
+       int i;
+
+       if (of_property_read_u32(np, "cirrus,xtal-ibias", &val) < 0) {
+       /* Crystal is unused. System clock is used for external MCLK */
+               cs43130->xtal_ibias = CS43130_XTAL_UNUSED;
+               return 0;
+       }
+
+       switch (val) {
+       case 1:
+               cs43130->xtal_ibias = CS43130_XTAL_IBIAS_7_5UA;
+               break;
+       case 2:
+               cs43130->xtal_ibias = CS43130_XTAL_IBIAS_12_5UA;
+               break;
+       case 3:
+               cs43130->xtal_ibias = CS43130_XTAL_IBIAS_15UA;
+               break;
+       default:
+               dev_err(&i2c_client->dev,
+                       "Invalid cirrus,xtal-ibias value: %d\n", val);
+               return -EINVAL;
+       }
+
+       cs43130->dc_meas = of_property_read_bool(np, "cirrus,dc-measure");
+       cs43130->ac_meas = of_property_read_bool(np, "cirrus,ac-measure");
+
+       if (of_property_read_u16_array(np, "cirrus,ac-freq", cs43130->ac_freq,
+                                       CS43130_AC_FREQ) < 0) {
+               for (i = 0; i < CS43130_AC_FREQ; i++)
+                       cs43130->ac_freq[i] = cs43130_ac_freq[i];
+       }
+
+       if (of_property_read_u16_array(np, "cirrus,dc-threshold",
+                                       cs43130->dc_threshold,
+                                       CS43130_DC_THRESHOLD) < 0) {
+               for (i = 0; i < CS43130_DC_THRESHOLD; i++)
+                       cs43130->dc_threshold[i] = cs43130_dc_threshold[i];
+       }
+
+       return 0;
+}
+
+
+static int allo_cs43130_component_probe(struct i2c_client *i2c,
+                            const struct i2c_device_id *id)
+{
+       struct regmap *regmap;
+       struct regmap_config config = cs43130_regmap;
+       struct device *dev = &i2c->dev;
+       struct cs43130_priv *cs43130;
+       unsigned int devid = 0;
+       unsigned int reg;
+       int ret;
+
+       regmap = devm_regmap_init_i2c(i2c, &config);
+       if (IS_ERR(regmap))
+               return PTR_ERR(regmap);
+
+       cs43130 = devm_kzalloc(dev, sizeof(struct cs43130_priv),
+                                       GFP_KERNEL);
+       if (!cs43130)
+               return -ENOMEM;
+
+       dev_set_drvdata(dev, cs43130);
+       cs43130->regmap = regmap;
+
+       if (i2c->dev.of_node) {
+               ret = cs43130_handle_device_data(i2c, cs43130);
+               if (ret != 0)
+                       return ret;
+       }
+       usleep_range(2000, 2050);
+
+       ret = regmap_read(cs43130->regmap, CS43130_DEVID_AB, &reg);
+       devid = (reg & 0xFF) << 12;
+       ret = regmap_read(cs43130->regmap, CS43130_DEVID_CD, &reg);
+       devid |= (reg & 0xFF) << 4;
+       ret = regmap_read(cs43130->regmap, CS43130_DEVID_E, &reg);
+       devid |= (reg & 0xF0) >> 4;
+       if (devid != CS43198_CHIP_ID) {
+               dev_err(dev, "Failed to read Chip or wrong Chip id: %d\n", ret);
+               return ret;
+       }
+
+       cs43130->mclk_int_src = CS43130_MCLK_SRC_RCO;
+       msleep(20);
+
+       ret = snd_soc_register_component(dev, &cs43130_component_driver,
+                                   &cs43130_codec_dai, 1);
+       if (ret != 0) {
+               dev_err(dev, "failed to register codec: %d\n", ret);
+               return ret;
+       }
+       regmap_update_bits(cs43130->regmap, CS43130_PAD_INT_CFG,
+                       CS43130_ASP_3ST_MASK, 0);
+       regmap_update_bits(cs43130->regmap, CS43130_PAD_INT_CFG,
+                       CS43130_XSP_3ST_MASK, 1);
+       regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
+                       CS43130_PDN_HP_MASK, 1 << CS43130_PDN_HP_SHIFT);
+       msleep(20);
+       regmap_write(cs43130->regmap, CS43130_CLASS_H_CTL, 0x06);
+       snd_allo_clk44gpio = devm_gpiod_get(dev, "clock44", GPIOD_OUT_HIGH);
+       if (IS_ERR(snd_allo_clk44gpio))
+               dev_err(dev, "devm_gpiod_get() failed\n");
+
+       snd_allo_clk48gpio = devm_gpiod_get(dev, "clock48", GPIOD_OUT_LOW);
+       if (IS_ERR(snd_allo_clk48gpio))
+               dev_err(dev, "devm_gpiod_get() failed\n");
+
+       return 0;
+}
+
+static void allo_cs43130_component_remove(struct i2c_client *i2c)
+{
+       snd_soc_unregister_component(&i2c->dev);
+}
+
+static const struct i2c_device_id allo_cs43130_component_id[] = {
+       { "allo-cs43198", },
+       { }
+};
+MODULE_DEVICE_TABLE(i2c, allo_cs43130_component_id);
+
+static const struct of_device_id allo_cs43130_codec_of_match[] = {
+       { .compatible = "allo,allo-cs43198", },
+       { }
+};
+MODULE_DEVICE_TABLE(of, allo_cs43130_codec_of_match);
+
+static struct i2c_driver allo_cs43130_component_driver = {
+       .probe          = allo_cs43130_component_probe,
+       .remove         = allo_cs43130_component_remove,
+       .id_table       = allo_cs43130_component_id,
+       .driver         = {
+       .name           = "allo-cs43198",
+       .of_match_table = allo_cs43130_codec_of_match,
+       },
+};
+
+module_i2c_driver(allo_cs43130_component_driver);
+
+MODULE_DESCRIPTION("ASoC Allo Boss2 Codec Driver");
+MODULE_AUTHOR("Sudeepkumar <sudeepkumar@cem-solutions.net>");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/allo-katana-codec.c
@@ -0,0 +1,387 @@
+/*
+ * Driver for the ALLO KATANA CODEC
+ *
+ * Author: Jaikumar <jaikumar@cem-solutions.net>
+ *             Copyright 2018
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/kernel.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/gcd.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/pcm_params.h>
+#include <sound/tlv.h>
+#include <linux/i2c.h>
+
+
+#define KATANA_CODEC_CHIP_ID           0x30
+#define KATANA_CODEC_VIRT_BASE         0x100
+#define KATANA_CODEC_PAGE              0
+
+#define KATANA_CODEC_CHIP_ID_REG       (KATANA_CODEC_VIRT_BASE + 0)
+#define KATANA_CODEC_RESET             (KATANA_CODEC_VIRT_BASE + 1)
+#define KATANA_CODEC_VOLUME_1          (KATANA_CODEC_VIRT_BASE + 2)
+#define KATANA_CODEC_VOLUME_2          (KATANA_CODEC_VIRT_BASE + 3)
+#define KATANA_CODEC_MUTE              (KATANA_CODEC_VIRT_BASE + 4)
+#define KATANA_CODEC_DSP_PROGRAM       (KATANA_CODEC_VIRT_BASE + 5)
+#define KATANA_CODEC_DEEMPHASIS                (KATANA_CODEC_VIRT_BASE + 6)
+#define KATANA_CODEC_DOP               (KATANA_CODEC_VIRT_BASE + 7)
+#define KATANA_CODEC_FORMAT            (KATANA_CODEC_VIRT_BASE + 8)
+#define KATANA_CODEC_COMMAND           (KATANA_CODEC_VIRT_BASE + 9)
+#define KATANA_CODEC_MUTE_STREAM       (KATANA_CODEC_VIRT_BASE + 10)
+
+#define KATANA_CODEC_MAX_REGISTER      (KATANA_CODEC_VIRT_BASE + 10)
+
+#define KATANA_CODEC_FMT               0xff
+#define KATANA_CODEC_CHAN_MONO         0x00
+#define KATANA_CODEC_CHAN_STEREO       0x80
+#define KATANA_CODEC_ALEN_16           0x10
+#define KATANA_CODEC_ALEN_24           0x20
+#define KATANA_CODEC_ALEN_32           0x30
+#define KATANA_CODEC_RATE_11025                0x01
+#define KATANA_CODEC_RATE_22050                0x02
+#define KATANA_CODEC_RATE_32000                0x03
+#define KATANA_CODEC_RATE_44100                0x04
+#define KATANA_CODEC_RATE_48000                0x05
+#define KATANA_CODEC_RATE_88200                0x06
+#define KATANA_CODEC_RATE_96000                0x07
+#define KATANA_CODEC_RATE_176400       0x08
+#define KATANA_CODEC_RATE_192000       0x09
+#define KATANA_CODEC_RATE_352800       0x0a
+#define KATANA_CODEC_RATE_384000       0x0b
+
+
+struct katana_codec_priv {
+       struct regmap *regmap;
+       int fmt;
+};
+
+static const struct reg_default katana_codec_reg_defaults[] = {
+       { KATANA_CODEC_RESET,           0x00 },
+       { KATANA_CODEC_VOLUME_1,        0xF0 },
+       { KATANA_CODEC_VOLUME_2,        0xF0 },
+       { KATANA_CODEC_MUTE,            0x00 },
+       { KATANA_CODEC_DSP_PROGRAM,     0x04 },
+       { KATANA_CODEC_DEEMPHASIS,      0x00 },
+       { KATANA_CODEC_DOP,             0x00 },
+       { KATANA_CODEC_FORMAT,          0xb4 },
+};
+
+static const char * const katana_codec_dsp_program_texts[] = {
+       "Linear Phase Fast Roll-off Filter",
+       "Linear Phase Slow Roll-off Filter",
+       "Minimum Phase Fast Roll-off Filter",
+       "Minimum Phase Slow Roll-off Filter",
+       "Apodizing Fast Roll-off Filter",
+       "Corrected Minimum Phase Fast Roll-off Filter",
+       "Brick Wall Filter",
+};
+
+static const unsigned int katana_codec_dsp_program_values[] = {
+       0,
+       1,
+       2,
+       3,
+       4,
+       6,
+       7,
+};
+
+static SOC_VALUE_ENUM_SINGLE_DECL(katana_codec_dsp_program,
+                                 KATANA_CODEC_DSP_PROGRAM, 0, 0x07,
+                                 katana_codec_dsp_program_texts,
+                                 katana_codec_dsp_program_values);
+
+static const char * const katana_codec_deemphasis_texts[] = {
+       "Bypass",
+       "32kHz",
+       "44.1kHz",
+       "48kHz",
+};
+
+static const unsigned int katana_codec_deemphasis_values[] = {
+       0,
+       1,
+       2,
+       3,
+};
+
+static SOC_VALUE_ENUM_SINGLE_DECL(katana_codec_deemphasis,
+                                 KATANA_CODEC_DEEMPHASIS, 0, 0x03,
+                                 katana_codec_deemphasis_texts,
+                                 katana_codec_deemphasis_values);
+
+static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(master_tlv, -12750, 0);
+
+static const struct snd_kcontrol_new katana_codec_controls[] = {
+       SOC_DOUBLE_R_TLV("Master Playback Volume", KATANA_CODEC_VOLUME_1,
+                       KATANA_CODEC_VOLUME_2, 0, 255, 1, master_tlv),
+       SOC_DOUBLE("Master Playback Switch", KATANA_CODEC_MUTE, 0, 0, 1, 1),
+       SOC_ENUM("DSP Program Route", katana_codec_dsp_program),
+       SOC_ENUM("Deemphasis Route", katana_codec_deemphasis),
+       SOC_SINGLE("DoP Playback Switch", KATANA_CODEC_DOP, 0, 1, 1)
+};
+
+static bool katana_codec_readable_register(struct device *dev,
+                               unsigned int reg)
+{
+       switch (reg) {
+       case KATANA_CODEC_CHIP_ID_REG:
+               return true;
+       default:
+               return reg < 0xff;
+       }
+}
+
+static int katana_codec_hw_params(struct snd_pcm_substream *substream,
+                            struct snd_pcm_hw_params *params,
+                            struct snd_soc_dai *dai)
+{
+       struct snd_soc_component *component = dai->component;
+       struct katana_codec_priv *katana_codec =
+               snd_soc_component_get_drvdata(component);
+       int fmt = 0;
+       int ret;
+
+       dev_dbg(component->card->dev, "hw_params %u Hz, %u channels, %u bits\n",
+                       params_rate(params),
+                       params_channels(params),
+                       params_width(params));
+
+       switch (katana_codec->fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+       case SND_SOC_DAIFMT_CBM_CFM: // master
+               if (params_channels(params) == 2)
+                       fmt = KATANA_CODEC_CHAN_STEREO;
+               else
+                       fmt = KATANA_CODEC_CHAN_MONO;
+
+               switch (params_width(params)) {
+               case 16:
+                       fmt |= KATANA_CODEC_ALEN_16;
+                       break;
+               case 24:
+                       fmt |= KATANA_CODEC_ALEN_24;
+                       break;
+               case 32:
+                       fmt |= KATANA_CODEC_ALEN_32;
+                       break;
+               default:
+                       dev_err(component->card->dev, "Bad frame size: %d\n",
+                                       params_width(params));
+                       return -EINVAL;
+               }
+
+               switch (params_rate(params)) {
+               case 44100:
+                       fmt |= KATANA_CODEC_RATE_44100;
+                       break;
+               case 48000:
+                       fmt |= KATANA_CODEC_RATE_48000;
+                       break;
+               case 88200:
+                       fmt |= KATANA_CODEC_RATE_88200;
+                       break;
+               case 96000:
+                       fmt |= KATANA_CODEC_RATE_96000;
+                       break;
+               case 176400:
+                       fmt |= KATANA_CODEC_RATE_176400;
+                       break;
+               case 192000:
+                       fmt |= KATANA_CODEC_RATE_192000;
+                       break;
+               case 352800:
+                       fmt |= KATANA_CODEC_RATE_352800;
+                       break;
+               case 384000:
+                       fmt |= KATANA_CODEC_RATE_384000;
+                       break;
+               default:
+                       dev_err(component->card->dev, "Bad sample rate: %d\n",
+                                       params_rate(params));
+                       return -EINVAL;
+               }
+
+               ret = regmap_write(katana_codec->regmap, KATANA_CODEC_FORMAT,
+                                       fmt);
+               if (ret != 0) {
+                       dev_err(component->card->dev, "Failed to set format: %d\n", ret);
+                       return ret;
+               }
+               break;
+
+       case SND_SOC_DAIFMT_CBS_CFS:
+               break;
+
+       default:
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
+static int katana_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+       struct snd_soc_component *component = dai->component;
+       struct katana_codec_priv *katana_codec =
+               snd_soc_component_get_drvdata(component);
+
+       katana_codec->fmt = fmt;
+
+       return 0;
+}
+
+int katana_codec_dai_mute_stream(struct snd_soc_dai *dai, int mute,
+                                               int stream)
+{
+       struct snd_soc_component *component = dai->component;
+       struct katana_codec_priv *katana_codec =
+               snd_soc_component_get_drvdata(component);
+       int ret = 0;
+
+       ret = regmap_write(katana_codec->regmap, KATANA_CODEC_MUTE_STREAM,
+                               mute);
+       if (ret != 0) {
+               dev_err(component->card->dev, "Failed to set mute: %d\n", ret);
+               return ret;
+       }
+       return ret;
+}
+
+static const struct snd_soc_dai_ops katana_codec_dai_ops = {
+       .mute_stream = katana_codec_dai_mute_stream,
+       .hw_params = katana_codec_hw_params,
+       .set_fmt = katana_codec_set_fmt,
+};
+
+static struct snd_soc_dai_driver katana_codec_dai = {
+       .name = "allo-katana-codec",
+       .playback = {
+               .stream_name = "Playback",
+               .channels_min = 2,
+               .channels_max = 2,
+               .rates = SNDRV_PCM_RATE_CONTINUOUS,
+               .rate_min = 44100,
+               .rate_max = 384000,
+               .formats = SNDRV_PCM_FMTBIT_S16_LE |
+                       SNDRV_PCM_FMTBIT_S32_LE
+       },
+       .ops = &katana_codec_dai_ops,
+};
+
+static struct snd_soc_component_driver katana_codec_component_driver = {
+       .idle_bias_on = true,
+
+       .controls               = katana_codec_controls,
+       .num_controls   = ARRAY_SIZE(katana_codec_controls),
+};
+
+static const struct regmap_range_cfg katana_codec_range = {
+       .name = "Pages", .range_min = KATANA_CODEC_VIRT_BASE,
+       .range_max = KATANA_CODEC_MAX_REGISTER,
+       .selector_reg = KATANA_CODEC_PAGE,
+       .selector_mask = 0xff,
+       .window_start = 0, .window_len = 0x100,
+};
+
+const struct regmap_config katana_codec_regmap = {
+       .reg_bits = 8,
+       .val_bits = 8,
+
+       .ranges = &katana_codec_range,
+       .num_ranges = 1,
+
+       .max_register = KATANA_CODEC_MAX_REGISTER,
+       .readable_reg = katana_codec_readable_register,
+       .reg_defaults = katana_codec_reg_defaults,
+       .num_reg_defaults = ARRAY_SIZE(katana_codec_reg_defaults),
+       .cache_type = REGCACHE_RBTREE,
+};
+
+static int allo_katana_component_probe(struct i2c_client *i2c,
+                            const struct i2c_device_id *id)
+{
+       struct regmap *regmap;
+       struct regmap_config config = katana_codec_regmap;
+       struct device *dev = &i2c->dev;
+       struct katana_codec_priv *katana_codec;
+       unsigned int chip_id = 0;
+       int ret;
+
+       regmap = devm_regmap_init_i2c(i2c, &config);
+       if (IS_ERR(regmap))
+               return PTR_ERR(regmap);
+
+       katana_codec = devm_kzalloc(dev, sizeof(struct katana_codec_priv),
+                                       GFP_KERNEL);
+       if (!katana_codec)
+               return -ENOMEM;
+
+       dev_set_drvdata(dev, katana_codec);
+       katana_codec->regmap = regmap;
+
+       ret = regmap_read(regmap, KATANA_CODEC_CHIP_ID_REG, &chip_id);
+       if ((ret != 0) || (chip_id != KATANA_CODEC_CHIP_ID)) {
+               dev_err(dev, "Failed to read Chip or wrong Chip id: %d\n", ret);
+               return ret;
+       }
+       regmap_update_bits(regmap, KATANA_CODEC_RESET, 0x01, 0x01);
+       msleep(10);
+
+       ret = snd_soc_register_component(dev, &katana_codec_component_driver,
+                                   &katana_codec_dai, 1);
+       if (ret != 0) {
+               dev_err(dev, "failed to register codec: %d\n", ret);
+               return ret;
+       }
+
+       return 0;
+}
+
+static void allo_katana_component_remove(struct i2c_client *i2c)
+{
+       snd_soc_unregister_component(&i2c->dev);
+}
+
+static const struct i2c_device_id allo_katana_component_id[] = {
+       { "allo-katana-codec", },
+       { }
+};
+MODULE_DEVICE_TABLE(i2c, allo_katana_component_id);
+
+static const struct of_device_id allo_katana_codec_of_match[] = {
+       { .compatible = "allo,allo-katana-codec", },
+       { }
+};
+MODULE_DEVICE_TABLE(of, allo_katana_codec_of_match);
+
+static struct i2c_driver allo_katana_component_driver = {
+       .probe          = allo_katana_component_probe,
+       .remove         = allo_katana_component_remove,
+       .id_table       = allo_katana_component_id,
+       .driver         = {
+       .name           = "allo-katana-codec",
+       .of_match_table = allo_katana_codec_of_match,
+       },
+};
+
+module_i2c_driver(allo_katana_component_driver);
+
+MODULE_DESCRIPTION("ASoC Allo Katana Codec Driver");
+MODULE_AUTHOR("Jaikumar <jaikumar@cem-solutions.net>");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/allo-piano-dac-plus.c
@@ -0,0 +1,1064 @@
+/*
+ * ALSA ASoC Machine Driver for Allo Piano DAC Plus Subwoofer
+ *
+ * Author:     Baswaraj K <jaikumar@cem-solutions.net>
+ *             Copyright 2020
+ *             based on code by David Knell <david.knell@gmail.com)
+ *             based on code by Daniel Matuschek <info@crazy-audio.com>
+ *             based on code by Florian Meier <florian.meier@koalo.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/gpio/consumer.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <linux/firmware.h>
+#include <linux/delay.h>
+#include <sound/tlv.h>
+#include "../codecs/pcm512x.h"
+
+#define P_DAC_LEFT_MUTE                0x10
+#define P_DAC_RIGHT_MUTE       0x01
+#define P_DAC_MUTE             0x11
+#define P_DAC_UNMUTE           0x00
+#define P_MUTE                 1
+#define P_UNMUTE               0
+
+struct dsp_code {
+       char i2c_addr;
+       char offset;
+       char val;
+};
+
+struct glb_pool {
+       struct mutex lock;
+       unsigned int dual_mode;
+       unsigned int set_lowpass;
+       unsigned int set_mode;
+       unsigned int set_rate;
+       unsigned int dsp_page_number;
+};
+
+static bool digital_gain_0db_limit = true;
+bool glb_mclk;
+
+static struct gpio_desc *mute_gpio[2];
+
+static const char * const allo_piano_mode_texts[] = {
+       "None",
+       "2.0",
+       "2.1",
+       "2.2",
+};
+
+static SOC_ENUM_SINGLE_DECL(allo_piano_mode_enum,
+               0, 0, allo_piano_mode_texts);
+
+static const char * const allo_piano_dual_mode_texts[] = {
+       "None",
+       "Dual-Mono",
+       "Dual-Stereo",
+};
+
+static SOC_ENUM_SINGLE_DECL(allo_piano_dual_mode_enum,
+               0, 0, allo_piano_dual_mode_texts);
+
+static const char * const allo_piano_dsp_low_pass_texts[] = {
+       "60",
+       "70",
+       "80",
+       "90",
+       "100",
+       "110",
+       "120",
+       "130",
+       "140",
+       "150",
+       "160",
+       "170",
+       "180",
+       "190",
+       "200",
+};
+
+static SOC_ENUM_SINGLE_DECL(allo_piano_enum,
+               0, 0, allo_piano_dsp_low_pass_texts);
+
+static int __snd_allo_piano_dsp_program(struct snd_soc_pcm_runtime *rtd,
+               unsigned int mode, unsigned int rate, unsigned int lowpass)
+{
+       const struct firmware *fw;
+       struct snd_soc_card *card = rtd->card;
+       struct glb_pool *glb_ptr = card->drvdata;
+       char firmware_name[60];
+       int ret = 0, dac = 0;
+
+       if (rate <= 46000)
+               rate = 44100;
+       else if (rate <= 68000)
+               rate = 48000;
+       else if (rate <= 92000)
+               rate = 88200;
+       else if (rate <= 136000)
+               rate = 96000;
+       else if (rate <= 184000)
+               rate = 176400;
+       else
+               rate = 192000;
+
+       if (lowpass > 14)
+               glb_ptr->set_lowpass = lowpass = 0;
+
+       if (mode > 3)
+               glb_ptr->set_mode = mode = 0;
+
+       if (mode > 0)
+               glb_ptr->dual_mode = 0;
+
+       /* same configuration loaded */
+       if ((rate == glb_ptr->set_rate) && (lowpass == glb_ptr->set_lowpass)
+                       && (mode == glb_ptr->set_mode))
+               return 0;
+
+       switch (mode) {
+       case 0: /* None */
+               return 1;
+
+       case 1: /* 2.0 */
+               snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
+                               PCM512x_MUTE, P_DAC_UNMUTE);
+               snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
+                               PCM512x_MUTE, P_DAC_MUTE);
+               glb_ptr->set_rate = rate;
+               glb_ptr->set_mode = mode;
+               glb_ptr->set_lowpass = lowpass;
+               return 1;
+
+       default:
+               snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
+                               PCM512x_MUTE, P_DAC_UNMUTE);
+               snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
+                               PCM512x_MUTE, P_DAC_UNMUTE);
+       }
+
+       for (dac = 0; dac < rtd->dai_link->num_codecs; dac++) {
+               struct dsp_code *dsp_code_read;
+               int i = 1;
+
+               if (dac == 0) { /* high */
+                       snprintf(firmware_name, sizeof(firmware_name),
+                               "allo/piano/2.2/allo-piano-dsp-%d-%d-%d.bin",
+                               rate, ((lowpass * 10) + 60), dac);
+               } else { /* low */
+                       snprintf(firmware_name, sizeof(firmware_name),
+                               "allo/piano/2.%d/allo-piano-dsp-%d-%d-%d.bin",
+                               (mode - 1), rate, ((lowpass * 10) + 60), dac);
+               }
+
+               dev_info(rtd->card->dev, "Dsp Firmware File Name: %s\n",
+                               firmware_name);
+
+               ret = request_firmware(&fw, firmware_name, rtd->card->dev);
+               if (ret < 0) {
+                       dev_err(rtd->card->dev,
+                               "Error: Allo Piano Firmware %s missing. %d\n",
+                               firmware_name, ret);
+                       goto err;
+               }
+
+               while (i < (fw->size - 1)) {
+                       dsp_code_read = (struct dsp_code *)&fw->data[i];
+
+                       if (dsp_code_read->offset == 0) {
+                               glb_ptr->dsp_page_number = dsp_code_read->val;
+                               ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, dac)->component,
+                                               PCM512x_PAGE_BASE(0),
+                                               dsp_code_read->val);
+
+                       } else if (dsp_code_read->offset != 0) {
+                               ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, dac)->component,
+                                       (PCM512x_PAGE_BASE(
+                                               glb_ptr->dsp_page_number) +
+                                       dsp_code_read->offset),
+                                       dsp_code_read->val);
+                       }
+                       if (ret < 0) {
+                               dev_err(rtd->card->dev,
+                                       "Failed to write Register: %d\n", ret);
+                               release_firmware(fw);
+                               goto err;
+                       }
+                       i = i + 3;
+               }
+               release_firmware(fw);
+       }
+       glb_ptr->set_rate = rate;
+       glb_ptr->set_mode = mode;
+       glb_ptr->set_lowpass = lowpass;
+       return 1;
+
+err:
+       return ret;
+}
+
+static int snd_allo_piano_dsp_program(struct snd_soc_pcm_runtime *rtd,
+               unsigned int mode, unsigned int rate, unsigned int lowpass)
+{
+       struct snd_soc_card *card = rtd->card;
+       struct glb_pool *glb_ptr = card->drvdata;
+       int ret = 0;
+
+       mutex_lock(&glb_ptr->lock);
+
+       ret = __snd_allo_piano_dsp_program(rtd, mode, rate, lowpass);
+
+       mutex_unlock(&glb_ptr->lock);
+
+       return ret;
+}
+
+static int snd_allo_piano_dual_mode_get(struct snd_kcontrol *kcontrol,
+               struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct glb_pool *glb_ptr = card->drvdata;
+
+       ucontrol->value.integer.value[0] = glb_ptr->dual_mode;
+
+       return 0;
+}
+
+static int snd_allo_piano_dual_mode_put(struct snd_kcontrol *kcontrol,
+               struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct glb_pool *glb_ptr = card->drvdata;
+       struct snd_soc_pcm_runtime *rtd;
+       struct snd_card *snd_card_ptr = card->snd_card;
+       struct snd_kcontrol *kctl;
+       struct soc_mixer_control *mc;
+       unsigned int left_val = 0, right_val = 0;
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+
+       if (ucontrol->value.integer.value[0] > 0) {
+               glb_ptr->dual_mode = ucontrol->value.integer.value[0];
+               glb_ptr->set_mode = 0;
+       } else {
+               if (glb_ptr->set_mode <= 0) {
+                       glb_ptr->dual_mode = 1;
+                       glb_ptr->set_mode = 0;
+               } else {
+                       glb_ptr->dual_mode = 0;
+                       return 0;
+               }
+       }
+
+       if (glb_ptr->dual_mode == 1) { // Dual Mono
+               snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
+                               PCM512x_MUTE, P_DAC_RIGHT_MUTE);
+               snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
+                               PCM512x_MUTE, P_DAC_LEFT_MUTE);
+               snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
+                               PCM512x_DIGITAL_VOLUME_3, 0xff);
+               snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
+                               PCM512x_DIGITAL_VOLUME_2, 0xff);
+
+               list_for_each_entry(kctl, &snd_card_ptr->controls, list) {
+                       if (!strncmp(kctl->id.name, "Main Digital Playback Volume",
+                               sizeof(kctl->id.name))) {
+                               mc = (struct soc_mixer_control *)
+                                       kctl->private_value;
+                               mc->rreg = mc->reg;
+                               break;
+                       }
+                       if (!strncmp(kctl->id.name, "Sub Digital Playback Volume",
+                               sizeof(kctl->id.name))) {
+                               mc = (struct soc_mixer_control *)
+                                       kctl->private_value;
+                               mc->rreg = mc->reg;
+                               break;
+                       }
+               }
+       } else {
+               left_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 0)->component,
+                                               PCM512x_DIGITAL_VOLUME_2);
+               right_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component,
+                                               PCM512x_DIGITAL_VOLUME_3);
+
+               list_for_each_entry(kctl, &snd_card_ptr->controls, list) {
+                       if (!strncmp(kctl->id.name, "Main Digital Playback Volume",
+                               sizeof(kctl->id.name))) {
+                               mc = (struct soc_mixer_control *)
+                                       kctl->private_value;
+                               mc->rreg = PCM512x_DIGITAL_VOLUME_3;
+                               break;
+                       }
+                       if (!strncmp(kctl->id.name, "Sub Digital Playback Volume",
+                               sizeof(kctl->id.name))) {
+                               mc = (struct soc_mixer_control *)
+                                       kctl->private_value;
+                               mc->rreg = PCM512x_DIGITAL_VOLUME_2;
+                               break;
+                       }
+               }
+
+               snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
+                               PCM512x_DIGITAL_VOLUME_3, left_val);
+               snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
+                               PCM512x_DIGITAL_VOLUME_2, right_val);
+               snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
+                               PCM512x_MUTE, P_DAC_UNMUTE);
+               snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
+                               PCM512x_MUTE, P_DAC_UNMUTE);
+       }
+
+       return 0;
+}
+
+static int snd_allo_piano_mode_get(struct snd_kcontrol *kcontrol,
+               struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct glb_pool *glb_ptr = card->drvdata;
+
+       ucontrol->value.integer.value[0] = glb_ptr->set_mode;
+       return 0;
+}
+
+static int snd_allo_piano_mode_put(struct snd_kcontrol *kcontrol,
+               struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_pcm_runtime *rtd;
+       struct glb_pool *glb_ptr = card->drvdata;
+       struct snd_card *snd_card_ptr = card->snd_card;
+       struct snd_kcontrol *kctl;
+       struct soc_mixer_control *mc;
+       unsigned int left_val = 0, right_val = 0;
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+
+       if ((glb_ptr->dual_mode == 1) &&
+                       (ucontrol->value.integer.value[0] > 0)) {
+               left_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 0)->component,
+                                               PCM512x_DIGITAL_VOLUME_2);
+               right_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component,
+                                               PCM512x_DIGITAL_VOLUME_2);
+
+               list_for_each_entry(kctl, &snd_card_ptr->controls, list) {
+                       if (!strncmp(kctl->id.name, "Main Digital Playback Volume",
+                               sizeof(kctl->id.name))) {
+                               mc = (struct soc_mixer_control *)
+                                       kctl->private_value;
+                               mc->rreg = PCM512x_DIGITAL_VOLUME_3;
+                               break;
+                       }
+                       if (!strncmp(kctl->id.name, "Sub Digital Playback Volume",
+                               sizeof(kctl->id.name))) {
+                               mc = (struct soc_mixer_control *)
+                                       kctl->private_value;
+                               mc->rreg = PCM512x_DIGITAL_VOLUME_2;
+                               break;
+                       }
+               }
+               snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
+                               PCM512x_DIGITAL_VOLUME_3, left_val);
+               snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
+                               PCM512x_DIGITAL_VOLUME_3, right_val);
+       }
+
+       return(snd_allo_piano_dsp_program(rtd,
+                               ucontrol->value.integer.value[0],
+                               glb_ptr->set_rate, glb_ptr->set_lowpass));
+}
+
+static int snd_allo_piano_lowpass_get(struct snd_kcontrol *kcontrol,
+               struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct glb_pool *glb_ptr = card->drvdata;
+
+       ucontrol->value.integer.value[0] = glb_ptr->set_lowpass;
+       return 0;
+}
+
+static int snd_allo_piano_lowpass_put(struct snd_kcontrol *kcontrol,
+               struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_pcm_runtime *rtd;
+       struct glb_pool *glb_ptr = card->drvdata;
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+       return(snd_allo_piano_dsp_program(rtd,
+                               glb_ptr->set_mode, glb_ptr->set_rate,
+                               ucontrol->value.integer.value[0]));
+}
+
+static int pcm512x_get_reg_sub(struct snd_kcontrol *kcontrol,
+               struct snd_ctl_elem_value *ucontrol)
+{
+       struct soc_mixer_control *mc =
+               (struct soc_mixer_control *)kcontrol->private_value;
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct glb_pool *glb_ptr = card->drvdata;
+       struct snd_soc_pcm_runtime *rtd;
+       unsigned int left_val = 0;
+       unsigned int right_val = 0;
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+
+       right_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component,
+                       PCM512x_DIGITAL_VOLUME_3);
+       if (glb_ptr->dual_mode != 1) {
+               left_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component,
+                               PCM512x_DIGITAL_VOLUME_2);
+
+       } else {
+               left_val = right_val;
+       }
+
+       ucontrol->value.integer.value[0] =
+                               (~(left_val >> mc->shift)) & mc->max;
+       ucontrol->value.integer.value[1] =
+                               (~(right_val >> mc->shift)) & mc->max;
+
+       return 0;
+}
+
+static int pcm512x_set_reg_sub(struct snd_kcontrol *kcontrol,
+               struct snd_ctl_elem_value *ucontrol)
+{
+       struct soc_mixer_control *mc =
+               (struct soc_mixer_control *)kcontrol->private_value;
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct glb_pool *glb_ptr = card->drvdata;
+       struct snd_soc_pcm_runtime *rtd;
+       unsigned int left_val = (ucontrol->value.integer.value[0] & mc->max);
+       unsigned int right_val = (ucontrol->value.integer.value[1] & mc->max);
+       int ret = 0;
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+
+       if (digital_gain_0db_limit) {
+               ret = snd_soc_limit_volume(card, "Subwoofer Playback Volume",
+                                       207);
+               if (ret < 0)
+                       dev_warn(card->dev, "Failed to set volume limit: %d\n",
+                               ret);
+       }
+
+       // When in Dual Mono, Sub vol control should not set anything.
+       if (glb_ptr->dual_mode != 1) { //Not in Dual Mono mode
+
+               ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
+                               PCM512x_DIGITAL_VOLUME_2, (~left_val));
+               if (ret < 0)
+                       return ret;
+
+               ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
+                               PCM512x_DIGITAL_VOLUME_3, (~right_val));
+               if (ret < 0)
+                       return ret;
+
+       }
+
+       return 1;
+}
+
+static int pcm512x_get_reg_sub_switch(struct snd_kcontrol *kcontrol,
+               struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_pcm_runtime *rtd;
+       int val = 0;
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+       val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component, PCM512x_MUTE);
+
+       ucontrol->value.integer.value[0] =
+                       (val & P_DAC_LEFT_MUTE) ? P_UNMUTE : P_MUTE;
+       ucontrol->value.integer.value[1] =
+                       (val & P_DAC_RIGHT_MUTE) ? P_UNMUTE : P_MUTE;
+
+       return val;
+}
+
+static int pcm512x_set_reg_sub_switch(struct snd_kcontrol *kcontrol,
+               struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_pcm_runtime *rtd;
+       struct glb_pool *glb_ptr = card->drvdata;
+       unsigned int left_val = (ucontrol->value.integer.value[0]);
+       unsigned int right_val = (ucontrol->value.integer.value[1]);
+       int ret = 0;
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+       if (glb_ptr->set_mode != 1) {
+               ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component, PCM512x_MUTE,
+                               ~((left_val & 0x01)<<4 | (right_val & 0x01)));
+               if (ret < 0)
+                       return ret;
+       }
+       return 1;
+
+}
+
+static int pcm512x_get_reg_master(struct snd_kcontrol *kcontrol,
+               struct snd_ctl_elem_value *ucontrol)
+{
+       struct soc_mixer_control *mc =
+               (struct soc_mixer_control *)kcontrol->private_value;
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct glb_pool *glb_ptr = card->drvdata;
+       struct snd_soc_pcm_runtime *rtd;
+       unsigned int left_val = 0, right_val = 0;
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+
+       left_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 0)->component,
+                       PCM512x_DIGITAL_VOLUME_2);
+
+       if (glb_ptr->dual_mode == 1) {  // in Dual Mono mode
+               right_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component,
+                               PCM512x_DIGITAL_VOLUME_3);
+       } else {
+               right_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 0)->component,
+                               PCM512x_DIGITAL_VOLUME_3);
+       }
+
+       ucontrol->value.integer.value[0] =
+               (~(left_val  >> mc->shift)) & mc->max;
+       ucontrol->value.integer.value[1] =
+               (~(right_val >> mc->shift)) & mc->max;
+
+       return 0;
+}
+
+static int pcm512x_set_reg_master(struct snd_kcontrol *kcontrol,
+               struct snd_ctl_elem_value *ucontrol)
+{
+       struct soc_mixer_control *mc =
+               (struct soc_mixer_control *)kcontrol->private_value;
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct glb_pool *glb_ptr = card->drvdata;
+       struct snd_soc_pcm_runtime *rtd;
+       unsigned int left_val = (ucontrol->value.integer.value[0] & mc->max);
+       unsigned int right_val = (ucontrol->value.integer.value[1] & mc->max);
+       int ret = 0;
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+
+       if (digital_gain_0db_limit) {
+               ret = snd_soc_limit_volume(card, "Master Playback Volume",
+                                       207);
+               if (ret < 0)
+                       dev_warn(card->dev, "Failed to set volume limit: %d\n",
+                               ret);
+       }
+
+       if (glb_ptr->dual_mode == 1) { //in Dual Mono Mode
+
+               ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
+                               PCM512x_DIGITAL_VOLUME_2, (~left_val));
+               if (ret < 0)
+                       return ret;
+
+               ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
+                               PCM512x_DIGITAL_VOLUME_3, (~right_val));
+               if (ret < 0)
+                       return ret;
+
+       } else {
+
+               ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
+                               PCM512x_DIGITAL_VOLUME_2, (~left_val));
+               if (ret < 0)
+                       return ret;
+
+               ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
+                               PCM512x_DIGITAL_VOLUME_3, (~right_val));
+               if (ret < 0)
+                       return ret;
+
+       }
+       return 1;
+}
+
+static int pcm512x_get_reg_master_switch(struct snd_kcontrol *kcontrol,
+               struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct glb_pool *glb_ptr = card->drvdata;
+       struct snd_soc_pcm_runtime *rtd;
+       int val = 0;
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+
+       val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 0)->component, PCM512x_MUTE);
+
+       ucontrol->value.integer.value[0] =
+                       (val & P_DAC_LEFT_MUTE) ? P_UNMUTE : P_MUTE;
+
+       if (glb_ptr->dual_mode == 1) {
+               val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component, PCM512x_MUTE);
+       }
+       ucontrol->value.integer.value[1] =
+                       (val & P_DAC_RIGHT_MUTE) ? P_UNMUTE : P_MUTE;
+
+       return val;
+}
+
+static int pcm512x_set_reg_master_switch(struct snd_kcontrol *kcontrol,
+               struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_pcm_runtime *rtd;
+       struct glb_pool *glb_ptr = card->drvdata;
+       unsigned int left_val = (ucontrol->value.integer.value[0]);
+       unsigned int right_val = (ucontrol->value.integer.value[1]);
+       int ret = 0;
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+       if (glb_ptr->dual_mode == 1) {
+               ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component, PCM512x_MUTE,
+                               ~((left_val & 0x01)<<4));
+               if (ret < 0)
+                       return ret;
+               ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component, PCM512x_MUTE,
+                               ~((right_val & 0x01)));
+               if (ret < 0)
+                       return ret;
+
+       } else if (glb_ptr->set_mode == 1) {
+               ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component, PCM512x_MUTE,
+                               ~((left_val & 0x01)<<4 | (right_val & 0x01)));
+               if (ret < 0)
+                       return ret;
+
+       } else {
+               ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component, PCM512x_MUTE,
+                               ~((left_val & 0x01)<<4 | (right_val & 0x01)));
+               if (ret < 0)
+                       return ret;
+
+               ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component, PCM512x_MUTE,
+                               ~((left_val & 0x01)<<4 | (right_val & 0x01)));
+               if (ret < 0)
+                       return ret;
+       }
+       return 1;
+}
+
+static const DECLARE_TLV_DB_SCALE(digital_tlv_sub, -10350, 50, 1);
+static const DECLARE_TLV_DB_SCALE(digital_tlv_master, -10350, 50, 1);
+
+static const struct snd_kcontrol_new allo_piano_controls[] = {
+       SOC_ENUM_EXT("Subwoofer mode Route",
+                       allo_piano_mode_enum,
+                       snd_allo_piano_mode_get,
+                       snd_allo_piano_mode_put),
+
+       SOC_ENUM_EXT("Dual Mode Route",
+                       allo_piano_dual_mode_enum,
+                       snd_allo_piano_dual_mode_get,
+                       snd_allo_piano_dual_mode_put),
+
+       SOC_ENUM_EXT("Lowpass Route", allo_piano_enum,
+                       snd_allo_piano_lowpass_get,
+                       snd_allo_piano_lowpass_put),
+
+       SOC_DOUBLE_R_EXT_TLV("Subwoofer Playback Volume",
+                       PCM512x_DIGITAL_VOLUME_2,
+                       PCM512x_DIGITAL_VOLUME_3, 0, 255, 1,
+                       pcm512x_get_reg_sub,
+                       pcm512x_set_reg_sub,
+                       digital_tlv_sub),
+
+       SOC_DOUBLE_EXT("Subwoofer Playback Switch",
+                       PCM512x_MUTE,
+                       PCM512x_RQML_SHIFT,
+                       PCM512x_RQMR_SHIFT, 1, 1,
+                       pcm512x_get_reg_sub_switch,
+                       pcm512x_set_reg_sub_switch),
+
+       SOC_DOUBLE_R_EXT_TLV("Master Playback Volume",
+                       PCM512x_DIGITAL_VOLUME_2,
+                       PCM512x_DIGITAL_VOLUME_3, 0, 255, 1,
+                       pcm512x_get_reg_master,
+                       pcm512x_set_reg_master,
+                       digital_tlv_master),
+
+       SOC_DOUBLE_EXT("Master Playback Switch",
+                       PCM512x_MUTE,
+                       PCM512x_RQML_SHIFT,
+                       PCM512x_RQMR_SHIFT, 1, 1,
+                       pcm512x_get_reg_master_switch,
+                       pcm512x_set_reg_master_switch),
+};
+
+static const char * const codec_ctl_pfx[] = { "Main", "Sub" };
+static const char * const codec_ctl_name[] = {
+       "Digital Playback Volume",
+       "Digital Playback Switch",
+       "Auto Mute Mono Switch",
+       "Auto Mute Switch",
+       "Auto Mute Time Left",
+       "Auto Mute Time Right",
+       "Clock Missing Period",
+       "Max Overclock DAC",
+       "Max Overclock DSP",
+       "Max Overclock PLL",
+       "Volume Ramp Down Emergency Rate",
+       "Volume Ramp Down Emergency Step",
+       "Volume Ramp Up Rate",
+       "Volume Ramp Down Rate",
+       "Volume Ramp Up Step",
+       "Volume Ramp Down Step"
+};
+
+static int snd_allo_piano_dac_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_card *card = rtd->card;
+       struct glb_pool *glb_ptr;
+       struct snd_kcontrol *kctl;
+       int i, j;
+
+       glb_ptr = kzalloc(sizeof(struct glb_pool), GFP_KERNEL);
+       if (!glb_ptr)
+               return -ENOMEM;
+
+       card->drvdata = glb_ptr;
+       glb_ptr->dual_mode = 2;
+       glb_ptr->set_mode = 0;
+
+       mutex_init(&glb_ptr->lock);
+
+       if (digital_gain_0db_limit) {
+               int ret;
+
+               //Set volume limit on both dacs
+               for (i = 0; i < ARRAY_SIZE(codec_ctl_pfx); i++) {
+                       char cname[256];
+
+                       sprintf(cname, "%s %s", codec_ctl_pfx[i], codec_ctl_name[0]);
+                       ret = snd_soc_limit_volume(card, cname, 207);
+                       if (ret < 0)
+                               dev_warn(card->dev, "Failed to set volume limit: %d\n",
+                                       ret);
+               }
+       }
+
+       // Remove codec controls
+       for (i = 0; i < ARRAY_SIZE(codec_ctl_pfx); i++) {
+               for (j = 0; j < ARRAY_SIZE(codec_ctl_name); j++) {
+                       char cname[256];
+
+                       sprintf(cname, "%s %s", codec_ctl_pfx[i], codec_ctl_name[j]);
+                       kctl = snd_soc_card_get_kcontrol(card, cname);
+                       if (!kctl) {
+                               dev_err(rtd->card->dev, "Control %s not found\n",
+                                      cname);
+                       } else {
+                               kctl->vd[0].access =
+                                       SNDRV_CTL_ELEM_ACCESS_READWRITE;
+                               snd_ctl_remove(card->snd_card, kctl);
+                       }
+               }
+       }
+
+       return 0;
+}
+
+static void snd_allo_piano_gpio_mute(struct snd_soc_card *card)
+{
+       if (mute_gpio[0])
+               gpiod_set_value_cansleep(mute_gpio[0], P_MUTE);
+
+       if (mute_gpio[1])
+               gpiod_set_value_cansleep(mute_gpio[1], P_MUTE);
+}
+
+static void snd_allo_piano_gpio_unmute(struct snd_soc_card *card)
+{
+       if (mute_gpio[0])
+               gpiod_set_value_cansleep(mute_gpio[0], P_UNMUTE);
+
+       if (mute_gpio[1])
+               gpiod_set_value_cansleep(mute_gpio[1], P_UNMUTE);
+}
+
+static int snd_allo_piano_set_bias_level(struct snd_soc_card *card,
+       struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level)
+{
+       struct snd_soc_pcm_runtime *rtd;
+       struct snd_soc_dai *codec_dai;
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+       codec_dai = asoc_rtd_to_codec(rtd, 0);
+
+       if (dapm->dev != codec_dai->dev)
+               return 0;
+
+       switch (level) {
+       case SND_SOC_BIAS_PREPARE:
+               if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
+                       break;
+               /* UNMUTE DAC */
+               snd_allo_piano_gpio_unmute(card);
+               break;
+
+       case SND_SOC_BIAS_STANDBY:
+               if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
+                       break;
+               /* MUTE DAC */
+               snd_allo_piano_gpio_mute(card);
+               break;
+
+       default:
+               break;
+       }
+
+       return 0;
+}
+
+static int snd_allo_piano_dac_startup(
+       struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_card *card = rtd->card;
+
+       snd_allo_piano_gpio_mute(card);
+
+       return 0;
+}
+
+static int snd_allo_piano_dac_hw_params(
+               struct snd_pcm_substream *substream,
+               struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       unsigned int rate = params_rate(params);
+       struct snd_soc_card *card = rtd->card;
+       struct glb_pool *glb_ptr = card->drvdata;
+       int ret = 0, val = 0, dac;
+
+       for (dac = 0; (glb_mclk && dac < 2); dac++) {
+               /* Configure the PLL clock reference for both the Codecs */
+               val = snd_soc_component_read(asoc_rtd_to_codec(rtd, dac)->component,
+                                       PCM512x_RATE_DET_4);
+
+               if (val & 0x40) {
+                       snd_soc_component_write(asoc_rtd_to_codec(rtd, dac)->component,
+                                       PCM512x_PLL_REF,
+                                       PCM512x_SREF_BCK);
+
+                       dev_info(asoc_rtd_to_codec(rtd, dac)->component->dev,
+                               "Setting BCLK as input clock & Enable PLL\n");
+               } else {
+                       snd_soc_component_write(asoc_rtd_to_codec(rtd, dac)->component,
+                                       PCM512x_PLL_EN,
+                                       0x00);
+
+                       snd_soc_component_write(asoc_rtd_to_codec(rtd, dac)->component,
+                                       PCM512x_PLL_REF,
+                                       PCM512x_SREF_SCK);
+
+                       dev_info(asoc_rtd_to_codec(rtd, dac)->component->dev,
+                               "Setting SCLK as input clock & disabled PLL\n");
+               }
+       }
+
+       ret = snd_allo_piano_dsp_program(rtd, glb_ptr->set_mode, rate,
+                                               glb_ptr->set_lowpass);
+       if (ret < 0)
+               return ret;
+
+       return ret;
+}
+
+static int snd_allo_piano_dac_prepare(
+       struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_card *card = rtd->card;
+
+       snd_allo_piano_gpio_unmute(card);
+
+       return 0;
+}
+
+/* machine stream operations */
+static struct snd_soc_ops snd_allo_piano_dac_ops = {
+       .startup = snd_allo_piano_dac_startup,
+       .hw_params = snd_allo_piano_dac_hw_params,
+       .prepare = snd_allo_piano_dac_prepare,
+};
+
+static struct snd_soc_dai_link_component allo_piano_2_1_codecs[] = {
+       {
+               .dai_name = "pcm512x-hifi",
+       },
+       {
+               .dai_name = "pcm512x-hifi",
+       },
+};
+
+SND_SOC_DAILINK_DEFS(allo_piano_dai_plus,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004c", "pcm512x-hifi"),
+                          COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_allo_piano_dac_dai[] = {
+       {
+               .name           = "PianoDACPlus",
+               .stream_name    = "PianoDACPlus",
+               .dai_fmt        = SND_SOC_DAIFMT_I2S |
+                               SND_SOC_DAIFMT_NB_NF |
+                               SND_SOC_DAIFMT_CBS_CFS,
+               .ops            = &snd_allo_piano_dac_ops,
+               .init           = snd_allo_piano_dac_init,
+               SND_SOC_DAILINK_REG(allo_piano_dai_plus),
+       },
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_allo_piano_dac = {
+       .name = "PianoDACPlus",
+       .owner = THIS_MODULE,
+       .dai_link = snd_allo_piano_dac_dai,
+       .num_links = ARRAY_SIZE(snd_allo_piano_dac_dai),
+       .controls = allo_piano_controls,
+       .num_controls = ARRAY_SIZE(allo_piano_controls),
+};
+
+static int snd_allo_piano_dac_probe(struct platform_device *pdev)
+{
+       struct snd_soc_card *card = &snd_allo_piano_dac;
+       int ret = 0, i = 0;
+
+       card->dev = &pdev->dev;
+       platform_set_drvdata(pdev, &snd_allo_piano_dac);
+
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_dai_link *dai;
+
+               dai = &snd_allo_piano_dac_dai[0];
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                                               "i2s-controller", 0);
+               if (i2s_node) {
+                       for (i = 0; i < card->num_links; i++) {
+                               dai->cpus->dai_name = NULL;
+                               dai->cpus->of_node = i2s_node;
+                               dai->platforms->name = NULL;
+                               dai->platforms->of_node = i2s_node;
+                       }
+               }
+               digital_gain_0db_limit =
+                       !of_property_read_bool(pdev->dev.of_node,
+                                               "allo,24db_digital_gain");
+
+               glb_mclk = of_property_read_bool(pdev->dev.of_node,
+                                               "allo,glb_mclk");
+
+               allo_piano_2_1_codecs[0].of_node =
+                       of_parse_phandle(pdev->dev.of_node, "audio-codec", 0);
+               if (!allo_piano_2_1_codecs[0].of_node) {
+                       dev_err(&pdev->dev,
+                               "Property 'audio-codec' missing or invalid\n");
+                       return -EINVAL;
+               }
+
+               allo_piano_2_1_codecs[1].of_node =
+                       of_parse_phandle(pdev->dev.of_node, "audio-codec", 1);
+               if (!allo_piano_2_1_codecs[1].of_node) {
+                       dev_err(&pdev->dev,
+                               "Property 'audio-codec' missing or invalid\n");
+                       return -EINVAL;
+               }
+
+               mute_gpio[0] = devm_gpiod_get_optional(&pdev->dev, "mute1",
+                                                       GPIOD_OUT_LOW);
+               if (IS_ERR(mute_gpio[0])) {
+                       ret = PTR_ERR(mute_gpio[0]);
+                       dev_err(&pdev->dev,
+                               "failed to get mute1 gpio6: %d\n", ret);
+                       return ret;
+               }
+
+               mute_gpio[1] = devm_gpiod_get_optional(&pdev->dev, "mute2",
+                                                       GPIOD_OUT_LOW);
+               if (IS_ERR(mute_gpio[1])) {
+                       ret = PTR_ERR(mute_gpio[1]);
+                       dev_err(&pdev->dev,
+                               "failed to get mute2 gpio25: %d\n", ret);
+                       return ret;
+               }
+
+               if (mute_gpio[0] && mute_gpio[1])
+                       snd_allo_piano_dac.set_bias_level =
+                               snd_allo_piano_set_bias_level;
+
+               ret = snd_soc_register_card(&snd_allo_piano_dac);
+               if (ret < 0) {
+                       dev_err(&pdev->dev,
+                               "snd_soc_register_card() failed: %d\n", ret);
+                       return ret;
+               }
+
+               if ((mute_gpio[0]) && (mute_gpio[1]))
+                       snd_allo_piano_gpio_mute(&snd_allo_piano_dac);
+
+               return 0;
+       }
+
+       return -EINVAL;
+}
+
+static int snd_allo_piano_dac_remove(struct platform_device *pdev)
+{
+       struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+       kfree(&card->drvdata);
+       snd_allo_piano_gpio_mute(&snd_allo_piano_dac);
+       snd_soc_unregister_card(&snd_allo_piano_dac);
+       return 0;
+}
+
+static const struct of_device_id snd_allo_piano_dac_of_match[] = {
+       { .compatible = "allo,piano-dac-plus", },
+       { /* sentinel */ },
+};
+
+MODULE_DEVICE_TABLE(of, snd_allo_piano_dac_of_match);
+
+static struct platform_driver snd_allo_piano_dac_driver = {
+       .driver = {
+               .name = "snd-allo-piano-dac-plus",
+               .owner = THIS_MODULE,
+               .of_match_table = snd_allo_piano_dac_of_match,
+       },
+       .probe = snd_allo_piano_dac_probe,
+       .remove = snd_allo_piano_dac_remove,
+};
+
+module_platform_driver(snd_allo_piano_dac_driver);
+
+MODULE_AUTHOR("Baswaraj K <jaikumar@cem-solutions.net>");
+MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Piano DAC Plus");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/allo-piano-dac.c
@@ -0,0 +1,122 @@
+/*
+ * ALSA ASoC Machine Driver for Allo Piano DAC
+ *
+ * Author:     Baswaraj K <jaikumar@cem-solutions.net>
+ *             Copyright 2016
+ *             based on code by Daniel Matuschek <info@crazy-audio.com>
+ *             based on code by Florian Meier <florian.meier@koalo.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+static bool digital_gain_0db_limit = true;
+
+static int snd_allo_piano_dac_init(struct snd_soc_pcm_runtime *rtd)
+{
+       if (digital_gain_0db_limit) {
+               int ret;
+               struct snd_soc_card *card = rtd->card;
+
+               ret = snd_soc_limit_volume(card, "Digital Playback Volume",
+                                          207);
+               if (ret < 0)
+                       dev_warn(card->dev, "Failed to set volume limit: %d\n",
+                                ret);
+       }
+
+       return 0;
+}
+
+SND_SOC_DAILINK_DEFS(allo_piano_dai,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004c", "pcm512x-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link snd_allo_piano_dac_dai[] = {
+{
+       .name           = "Piano DAC",
+       .stream_name    = "Piano DAC HiFi",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S |
+                         SND_SOC_DAIFMT_NB_NF |
+                         SND_SOC_DAIFMT_CBS_CFS,
+       .init           = snd_allo_piano_dac_init,
+       SND_SOC_DAILINK_REG(allo_piano_dai),
+},
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_allo_piano_dac = {
+       .name         = "PianoDAC",
+       .owner        = THIS_MODULE,
+       .dai_link     = snd_allo_piano_dac_dai,
+       .num_links    = ARRAY_SIZE(snd_allo_piano_dac_dai),
+};
+
+static int snd_allo_piano_dac_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+
+       snd_allo_piano_dac.dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_dai_link *dai;
+
+               dai = &snd_allo_piano_dac_dai[0];
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                                           "i2s-controller", 0);
+
+               if (i2s_node) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_node;
+               }
+
+               digital_gain_0db_limit = !of_property_read_bool(
+                       pdev->dev.of_node, "allo,24db_digital_gain");
+       }
+
+       ret = devm_snd_soc_register_card(&pdev->dev, &snd_allo_piano_dac);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev,
+                       "snd_soc_register_card() failed: %d\n", ret);
+
+       return ret;
+}
+
+static const struct of_device_id snd_allo_piano_dac_of_match[] = {
+       { .compatible = "allo,piano-dac", },
+       { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, snd_allo_piano_dac_of_match);
+
+static struct platform_driver snd_allo_piano_dac_driver = {
+       .driver = {
+               .name   = "snd-allo-piano-dac",
+               .owner  = THIS_MODULE,
+               .of_match_table = snd_allo_piano_dac_of_match,
+       },
+       .probe          = snd_allo_piano_dac_probe,
+};
+
+module_platform_driver(snd_allo_piano_dac_driver);
+
+MODULE_AUTHOR("Baswaraj K <jaikumar@cem-solutions.net>");
+MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Piano DAC");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/audioinjector-isolated-soundcard.c
@@ -0,0 +1,183 @@
+/*
+ * ASoC Driver for AudioInjector.net isolated soundcard
+ *
+ *  Created on: 20-February-2020
+ *      Author: flatmax@flatmax.org
+ *              based on audioinjector-octo-soundcard.c
+ *
+ * Copyright (C) 2020 Flatmax Pty. Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/gpio/consumer.h>
+
+#include <sound/core.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+#include <sound/control.h>
+
+static struct gpio_desc *mute_gpio;
+
+static const unsigned int audioinjector_isolated_rates[] = {
+       192000, 96000, 48000, 32000, 24000, 16000, 8000
+};
+
+static struct snd_pcm_hw_constraint_list audioinjector_isolated_constraints = {
+       .list = audioinjector_isolated_rates,
+       .count = ARRAY_SIZE(audioinjector_isolated_rates),
+};
+
+static int audioinjector_isolated_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+       int ret=snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 24576000, 0);
+       if (ret)
+               return ret;
+
+       return snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), 64);
+}
+
+static int audioinjector_isolated_startup(struct snd_pcm_substream *substream)
+{
+       snd_pcm_hw_constraint_list(substream->runtime, 0,
+                               SNDRV_PCM_HW_PARAM_RATE, &audioinjector_isolated_constraints);
+
+       return 0;
+}
+
+static int audioinjector_isolated_trigger(struct snd_pcm_substream *substream,
+                                                               int cmd){
+
+       switch (cmd) {
+       case SNDRV_PCM_TRIGGER_STOP:
+       case SNDRV_PCM_TRIGGER_SUSPEND:
+       case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+               gpiod_set_value(mute_gpio, 0);
+               break;
+       case SNDRV_PCM_TRIGGER_START:
+       case SNDRV_PCM_TRIGGER_RESUME:
+       case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+               gpiod_set_value(mute_gpio, 1);
+               break;
+       default:
+               return -EINVAL;
+       }
+       return 0;
+}
+
+static struct snd_soc_ops audioinjector_isolated_ops = {
+       .startup        = audioinjector_isolated_startup,
+       .trigger = audioinjector_isolated_trigger,
+};
+
+SND_SOC_DAILINK_DEFS(audioinjector_isolated,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("cs4271.1-0010", "cs4271-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link audioinjector_isolated_dai[] = {
+       {
+               .name = "AudioInjector ISO",
+               .stream_name = "AI-HIFI",
+               .ops = &audioinjector_isolated_ops,
+               .init = audioinjector_isolated_dai_init,
+               .symmetric_rate = 1,
+               .symmetric_channels = 1,
+               .dai_fmt = SND_SOC_DAIFMT_CBM_CFM|SND_SOC_DAIFMT_I2S|SND_SOC_DAIFMT_NB_NF,
+               SND_SOC_DAILINK_REG(audioinjector_isolated),
+       }
+};
+
+static const struct snd_soc_dapm_widget audioinjector_isolated_widgets[] = {
+       SND_SOC_DAPM_OUTPUT("OUTPUTS"),
+       SND_SOC_DAPM_INPUT("INPUTS"),
+};
+
+static const struct snd_soc_dapm_route audioinjector_isolated_route[] = {
+       /* Balanced outputs */
+       {"OUTPUTS", NULL, "AOUTA+"},
+       {"OUTPUTS", NULL, "AOUTA-"},
+       {"OUTPUTS", NULL, "AOUTB+"},
+       {"OUTPUTS", NULL, "AOUTB-"},
+
+       /* Balanced inputs */
+       {"AINA", NULL, "INPUTS"},
+       {"AINB", NULL, "INPUTS"},
+};
+
+static struct snd_soc_card snd_soc_audioinjector_isolated = {
+       .name = "audioinjector-isolated-soundcard",
+       .dai_link = audioinjector_isolated_dai,
+       .num_links = ARRAY_SIZE(audioinjector_isolated_dai),
+
+       .dapm_widgets = audioinjector_isolated_widgets,
+       .num_dapm_widgets = ARRAY_SIZE(audioinjector_isolated_widgets),
+       .dapm_routes = audioinjector_isolated_route,
+       .num_dapm_routes = ARRAY_SIZE(audioinjector_isolated_route),
+};
+
+static int audioinjector_isolated_probe(struct platform_device *pdev)
+{
+       struct snd_soc_card *card = &snd_soc_audioinjector_isolated;
+       int ret;
+
+       card->dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+               struct snd_soc_dai_link *dai = &audioinjector_isolated_dai[0];
+               struct device_node *i2s_node =
+                                       of_parse_phandle(pdev->dev.of_node, "i2s-controller", 0);
+
+               if (i2s_node) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_node;
+               } else {
+                               dev_err(&pdev->dev,
+                               "i2s-controller missing or invalid in DT\n");
+                               return -EINVAL;
+               }
+
+               mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute", GPIOD_OUT_LOW);
+               if (IS_ERR(mute_gpio)){
+                       dev_err(&pdev->dev, "mute gpio not found in dt overlay\n");
+                       return PTR_ERR(mute_gpio);
+               }
+       }
+
+       ret = devm_snd_soc_register_card(&pdev->dev, card);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
+       return ret;
+}
+
+static const struct of_device_id audioinjector_isolated_of_match[] = {
+       { .compatible = "ai,audioinjector-isolated-soundcard", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, audioinjector_isolated_of_match);
+
+static struct platform_driver audioinjector_isolated_driver = {
+       .driver = {
+               .name                   = "audioinjector-isolated",
+               .owner                  = THIS_MODULE,
+               .of_match_table = audioinjector_isolated_of_match,
+       },
+       .probe  = audioinjector_isolated_probe,
+};
+
+module_platform_driver(audioinjector_isolated_driver);
+MODULE_AUTHOR("Matt Flax <flatmax@flatmax.org>");
+MODULE_DESCRIPTION("AudioInjector.net isolated Soundcard");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:audioinjector-isolated-soundcard");
--- /dev/null
+++ b/sound/soc/bcm/audioinjector-octo-soundcard.c
@@ -0,0 +1,346 @@
+/*
+ * ASoC Driver for AudioInjector Pi octo channel soundcard (hat)
+ *
+ *  Created on: 27-October-2016
+ *      Author: flatmax@flatmax.org
+ *              based on audioinjector-pi-soundcard.c
+ *
+ * Copyright (C) 2016 Flatmax Pty. Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/gpio/consumer.h>
+
+#include <sound/core.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+#include <sound/control.h>
+
+static struct gpio_descs *mult_gpios;
+static struct gpio_desc *codec_rst_gpio;
+static unsigned int audioinjector_octo_rate;
+static bool non_stop_clocks;
+
+static const unsigned int audioinjector_octo_rates[] = {
+       96000, 48000, 32000, 24000, 16000, 8000, 88200, 44100, 29400, 22050, 14700,
+};
+
+static struct snd_pcm_hw_constraint_list audioinjector_octo_constraints = {
+       .list = audioinjector_octo_rates,
+       .count = ARRAY_SIZE(audioinjector_octo_rates),
+};
+
+static int audioinjector_octo_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+       return snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), 64);
+}
+
+static int audioinjector_octo_startup(struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       asoc_rtd_to_cpu(rtd, 0)->driver->playback.channels_min = 8;
+       asoc_rtd_to_cpu(rtd, 0)->driver->playback.channels_max = 8;
+       asoc_rtd_to_cpu(rtd, 0)->driver->capture.channels_min = 8;
+       asoc_rtd_to_cpu(rtd, 0)->driver->capture.channels_max = 8;
+       asoc_rtd_to_codec(rtd, 0)->driver->capture.channels_max = 8;
+
+       snd_pcm_hw_constraint_list(substream->runtime, 0,
+                               SNDRV_PCM_HW_PARAM_RATE,
+                               &audioinjector_octo_constraints);
+
+       return 0;
+}
+
+static void audioinjector_octo_shutdown(struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       asoc_rtd_to_cpu(rtd, 0)->driver->playback.channels_min = 2;
+       asoc_rtd_to_cpu(rtd, 0)->driver->playback.channels_max = 2;
+       asoc_rtd_to_cpu(rtd, 0)->driver->capture.channels_min = 2;
+       asoc_rtd_to_cpu(rtd, 0)->driver->capture.channels_max = 2;
+       asoc_rtd_to_codec(rtd, 0)->driver->capture.channels_max = 6;
+}
+
+static int audioinjector_octo_hw_params(struct snd_pcm_substream *substream,
+       struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+       // set codec DAI configuration
+       int ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0),
+                       SND_SOC_DAIFMT_CBS_CFS|SND_SOC_DAIFMT_DSP_A|
+                       SND_SOC_DAIFMT_NB_NF);
+       if (ret < 0)
+               return ret;
+
+       // set cpu DAI configuration
+       ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0),
+                       SND_SOC_DAIFMT_CBM_CFM|SND_SOC_DAIFMT_I2S|
+                       SND_SOC_DAIFMT_NB_NF);
+       if (ret < 0)
+               return ret;
+
+       audioinjector_octo_rate = params_rate(params);
+
+       // Set the correct sysclock for the codec
+       switch (audioinjector_octo_rate) {
+       case 96000:
+       case 48000:
+               return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 49152000,
+                                                                       0);
+               break;
+       case 24000:
+               return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 49152000/2,
+                                                                       0);
+               break;
+       case 32000:
+       case 16000:
+               return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 49152000/3,
+                                                                       0);
+               break;
+       case 8000:
+               return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 49152000/6,
+                                                                       0);
+               break;
+       case 88200:
+       case 44100:
+               return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 45185400,
+                                                                       0);
+               break;
+       case 22050:
+               return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 45185400/2,
+                                                                       0);
+               break;
+       case 29400:
+       case 14700:
+               return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 45185400/3,
+                                                                       0);
+               break;
+       default:
+               return -EINVAL;
+       }
+}
+
+static int audioinjector_octo_trigger(struct snd_pcm_substream *substream,
+                                                               int cmd){
+       DECLARE_BITMAP(mult, 4);
+
+       memset(mult, 0, sizeof(mult));
+
+       switch (cmd) {
+       case SNDRV_PCM_TRIGGER_STOP:
+       case SNDRV_PCM_TRIGGER_SUSPEND:
+       case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+               if (!non_stop_clocks)
+                       break;
+               fallthrough;
+       case SNDRV_PCM_TRIGGER_START:
+       case SNDRV_PCM_TRIGGER_RESUME:
+       case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+               switch (audioinjector_octo_rate) {
+               case 96000:
+                       __assign_bit(3, mult, 1);
+                       fallthrough;
+               case 88200:
+                       __assign_bit(1, mult, 1);
+                       __assign_bit(2, mult, 1);
+                       break;
+               case 48000:
+                       __assign_bit(3, mult, 1);
+                       fallthrough;
+               case 44100:
+                       __assign_bit(2, mult, 1);
+                       break;
+               case 32000:
+                       __assign_bit(3, mult, 1);
+                       fallthrough;
+               case 29400:
+                       __assign_bit(0, mult, 1);
+                       __assign_bit(1, mult, 1);
+                       break;
+               case 24000:
+                       __assign_bit(3, mult, 1);
+                       fallthrough;
+               case 22050:
+                       __assign_bit(1, mult, 1);
+                       break;
+               case 16000:
+                       __assign_bit(3, mult, 1);
+                       fallthrough;
+               case 14700:
+                       __assign_bit(0, mult, 1);
+                       break;
+               case 8000:
+                       __assign_bit(3, mult, 1);
+                       break;
+               default:
+                       return -EINVAL;
+               }
+               break;
+       default:
+               return -EINVAL;
+       }
+       gpiod_set_array_value_cansleep(mult_gpios->ndescs, mult_gpios->desc,
+                                      NULL, mult);
+
+       return 0;
+}
+
+static struct snd_soc_ops audioinjector_octo_ops = {
+       .startup        = audioinjector_octo_startup,
+       .shutdown       = audioinjector_octo_shutdown,
+       .hw_params = audioinjector_octo_hw_params,
+       .trigger = audioinjector_octo_trigger,
+};
+
+SND_SOC_DAILINK_DEFS(audioinjector_octo,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "cs42448")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link audioinjector_octo_dai[] = {
+       {
+               .name = "AudioInjector Octo",
+               .stream_name = "AudioInject-HIFI",
+               .ops = &audioinjector_octo_ops,
+               .init = audioinjector_octo_dai_init,
+               .symmetric_rate = 1,
+               .symmetric_channels = 1,
+               SND_SOC_DAILINK_REG(audioinjector_octo),
+       },
+};
+
+static const struct snd_soc_dapm_widget audioinjector_octo_widgets[] = {
+       SND_SOC_DAPM_OUTPUT("OUTPUTS0"),
+       SND_SOC_DAPM_OUTPUT("OUTPUTS1"),
+       SND_SOC_DAPM_OUTPUT("OUTPUTS2"),
+       SND_SOC_DAPM_OUTPUT("OUTPUTS3"),
+       SND_SOC_DAPM_INPUT("INPUTS0"),
+       SND_SOC_DAPM_INPUT("INPUTS1"),
+       SND_SOC_DAPM_INPUT("INPUTS2"),
+};
+
+static const struct snd_soc_dapm_route audioinjector_octo_route[] = {
+       /* Balanced outputs */
+       {"OUTPUTS0", NULL, "AOUT1L"},
+       {"OUTPUTS0", NULL, "AOUT1R"},
+       {"OUTPUTS1", NULL, "AOUT2L"},
+       {"OUTPUTS1", NULL, "AOUT2R"},
+       {"OUTPUTS2", NULL, "AOUT3L"},
+       {"OUTPUTS2", NULL, "AOUT3R"},
+       {"OUTPUTS3", NULL, "AOUT4L"},
+       {"OUTPUTS3", NULL, "AOUT4R"},
+
+       /* Balanced inputs */
+       {"AIN1L", NULL, "INPUTS0"},
+       {"AIN1R", NULL, "INPUTS0"},
+       {"AIN2L", NULL, "INPUTS1"},
+       {"AIN2R", NULL, "INPUTS1"},
+       {"AIN3L", NULL, "INPUTS2"},
+       {"AIN3R", NULL, "INPUTS2"},
+};
+
+static struct snd_soc_card snd_soc_audioinjector_octo = {
+       .name = "audioinjector-octo-soundcard",
+       .dai_link = audioinjector_octo_dai,
+       .num_links = ARRAY_SIZE(audioinjector_octo_dai),
+
+       .dapm_widgets = audioinjector_octo_widgets,
+       .num_dapm_widgets = ARRAY_SIZE(audioinjector_octo_widgets),
+       .dapm_routes = audioinjector_octo_route,
+       .num_dapm_routes = ARRAY_SIZE(audioinjector_octo_route),
+};
+
+static int audioinjector_octo_probe(struct platform_device *pdev)
+{
+       struct snd_soc_card *card = &snd_soc_audioinjector_octo;
+       int ret;
+
+       card->dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+               struct snd_soc_dai_link *dai = &audioinjector_octo_dai[0];
+               struct device_node *i2s_node =
+                                       of_parse_phandle(pdev->dev.of_node,
+                                                       "i2s-controller", 0);
+               struct device_node *codec_node =
+                                       of_parse_phandle(pdev->dev.of_node,
+                                                               "codec", 0);
+
+               mult_gpios = devm_gpiod_get_array_optional(&pdev->dev, "mult",
+                                                               GPIOD_OUT_LOW);
+               if (IS_ERR(mult_gpios))
+                       return PTR_ERR(mult_gpios);
+
+               codec_rst_gpio = devm_gpiod_get_optional(&pdev->dev, "reset",
+                                                               GPIOD_OUT_LOW);
+               if (IS_ERR(codec_rst_gpio))
+                       return PTR_ERR(codec_rst_gpio);
+
+               non_stop_clocks = of_property_read_bool(pdev->dev.of_node, "non-stop-clocks");
+
+               if (codec_rst_gpio)
+                       gpiod_set_value(codec_rst_gpio, 1);
+               msleep(500);
+               if (codec_rst_gpio)
+                       gpiod_set_value(codec_rst_gpio, 0);
+               msleep(500);
+               if (codec_rst_gpio)
+                       gpiod_set_value(codec_rst_gpio, 1);
+               msleep(500);
+
+               if (i2s_node && codec_node) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_node;
+                       dai->codecs->name = NULL;
+                       dai->codecs->of_node = codec_node;
+               } else
+                       if (!i2s_node) {
+                               dev_err(&pdev->dev,
+                               "i2s-controller missing or invalid in DT\n");
+                               return -EINVAL;
+                       } else {
+                               dev_err(&pdev->dev,
+                               "Property 'codec' missing or invalid\n");
+                               return -EINVAL;
+                       }
+       }
+
+       ret = devm_snd_soc_register_card(&pdev->dev, card);
+       if (ret != 0)
+               dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
+       return ret;
+}
+
+static const struct of_device_id audioinjector_octo_of_match[] = {
+       { .compatible = "ai,audioinjector-octo-soundcard", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, audioinjector_octo_of_match);
+
+static struct platform_driver audioinjector_octo_driver = {
+       .driver = {
+               .name                   = "audioinjector-octo",
+               .owner                  = THIS_MODULE,
+               .of_match_table = audioinjector_octo_of_match,
+       },
+       .probe  = audioinjector_octo_probe,
+};
+
+module_platform_driver(audioinjector_octo_driver);
+MODULE_AUTHOR("Matt Flax <flatmax@flatmax.org>");
+MODULE_DESCRIPTION("AudioInjector.net octo Soundcard");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:audioinjector-octo-soundcard");
--- /dev/null
+++ b/sound/soc/bcm/audioinjector-pi-soundcard.c
@@ -0,0 +1,189 @@
+/*
+ * ASoC Driver for AudioInjector Pi add on soundcard
+ *
+ *  Created on: 13-May-2016
+ *      Author: flatmax@flatmax.org
+ *              based on code by  Cliff Cai <Cliff.Cai@analog.com> for the ssm2602 machine blackfin.
+ *              with help from Lars-Peter Clausen for simplifying the original code to use the dai_fmt field.
+ *             i2s_node code taken from the other sound/soc/bcm machine drivers.
+ *
+ * Copyright (C) 2016 Flatmax Pty. Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include <sound/core.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+#include <sound/control.h>
+
+#include "../codecs/wm8731.h"
+
+static const unsigned int bcm2835_rates_12000000[] = {
+       8000, 16000, 32000, 44100, 48000, 96000, 88200,
+};
+
+static struct snd_pcm_hw_constraint_list bcm2835_constraints_12000000 = {
+       .list = bcm2835_rates_12000000,
+       .count = ARRAY_SIZE(bcm2835_rates_12000000),
+};
+
+static int snd_audioinjector_pi_soundcard_startup(struct snd_pcm_substream *substream)
+{
+       /* Setup constraints, because there is a 12 MHz XTAL on the board */
+       snd_pcm_hw_constraint_list(substream->runtime, 0,
+                               SNDRV_PCM_HW_PARAM_RATE,
+                               &bcm2835_constraints_12000000);
+       return 0;
+}
+
+static int snd_audioinjector_pi_soundcard_hw_params(struct snd_pcm_substream *substream,
+                                      struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+
+       switch (params_rate(params)){
+               case 8000:
+                       return snd_soc_dai_set_bclk_ratio(cpu_dai, 1);
+               case 16000:
+                       return snd_soc_dai_set_bclk_ratio(cpu_dai, 750);
+               case 32000:
+                       return snd_soc_dai_set_bclk_ratio(cpu_dai, 375);
+               case 44100:
+                       return snd_soc_dai_set_bclk_ratio(cpu_dai, 272);
+               case 48000:
+                       return snd_soc_dai_set_bclk_ratio(cpu_dai, 250);
+               case 88200:
+                       return snd_soc_dai_set_bclk_ratio(cpu_dai, 136);
+               case 96000:
+                       return snd_soc_dai_set_bclk_ratio(cpu_dai, 125);
+               default:
+                       return snd_soc_dai_set_bclk_ratio(cpu_dai, 125);
+       }
+}
+
+/* machine stream operations */
+static struct snd_soc_ops snd_audioinjector_pi_soundcard_ops = {
+       .startup = snd_audioinjector_pi_soundcard_startup,
+       .hw_params = snd_audioinjector_pi_soundcard_hw_params,
+};
+
+static int audioinjector_pi_soundcard_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+       return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), WM8731_SYSCLK_XTAL, 12000000, SND_SOC_CLOCK_IN);
+}
+
+SND_SOC_DAILINK_DEFS(audioinjector_pi,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("wm8731.1-001a", "wm8731-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2835-i2s.0")));
+
+static struct snd_soc_dai_link audioinjector_pi_soundcard_dai[] = {
+       {
+               .name = "AudioInjector audio",
+               .stream_name = "AudioInjector audio",
+               .ops = &snd_audioinjector_pi_soundcard_ops,
+               .init = audioinjector_pi_soundcard_dai_init,
+               .dai_fmt = SND_SOC_DAIFMT_CBM_CFM|SND_SOC_DAIFMT_I2S|SND_SOC_DAIFMT_NB_NF,
+               SND_SOC_DAILINK_REG(audioinjector_pi),
+       },
+};
+
+static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
+       SND_SOC_DAPM_HP("Headphone Jack", NULL),
+       SND_SOC_DAPM_SPK("Ext Spk", NULL),
+       SND_SOC_DAPM_LINE("Line In Jacks", NULL),
+       SND_SOC_DAPM_MIC("Microphone", NULL),
+};
+
+static const struct snd_soc_dapm_route audioinjector_audio_map[] = {
+       /* headphone connected to LHPOUT, RHPOUT */
+       {"Headphone Jack", NULL, "LHPOUT"},
+       {"Headphone Jack", NULL, "RHPOUT"},
+
+       /* speaker connected to LOUT, ROUT */
+       {"Ext Spk", NULL, "ROUT"},
+       {"Ext Spk", NULL, "LOUT"},
+
+       /* line inputs */
+       {"Line In Jacks", NULL, "Line Input"},
+
+       /* mic is connected to Mic Jack, with WM8731 Mic Bias */
+       {"Microphone", NULL, "Mic Bias"},
+};
+
+static struct snd_soc_card snd_soc_audioinjector = {
+       .name = "audioinjector-pi-soundcard",
+       .dai_link = audioinjector_pi_soundcard_dai,
+       .num_links = ARRAY_SIZE(audioinjector_pi_soundcard_dai),
+
+       .dapm_widgets = wm8731_dapm_widgets,
+       .num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets),
+       .dapm_routes = audioinjector_audio_map,
+       .num_dapm_routes = ARRAY_SIZE(audioinjector_audio_map),
+};
+
+static int audioinjector_pi_soundcard_probe(struct platform_device *pdev)
+{
+       struct snd_soc_card *card = &snd_soc_audioinjector;
+       int ret;
+       
+       card->dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+               struct snd_soc_dai_link *dai = &audioinjector_pi_soundcard_dai[0];
+               struct device_node *i2s_node = of_parse_phandle(pdev->dev.of_node,
+                                                               "i2s-controller", 0);
+
+               if (i2s_node) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_node;
+               } else
+                       if (!dai->cpus->of_node) {
+                               dev_err(&pdev->dev, "Property 'i2s-controller' missing or invalid\n");
+                               return -EINVAL;
+                       }
+       }
+
+       if ((ret = devm_snd_soc_register_card(&pdev->dev, card)))
+               return dev_err_probe(&pdev->dev, ret, "%s\n", __func__);
+
+       dev_info(&pdev->dev, "successfully loaded\n");
+
+       return ret;
+}
+
+static const struct of_device_id audioinjector_pi_soundcard_of_match[] = {
+       { .compatible = "ai,audioinjector-pi-soundcard", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, audioinjector_pi_soundcard_of_match);
+
+static struct platform_driver audioinjector_pi_soundcard_driver = {
+       .driver         = {
+               .name   = "audioinjector-stereo",
+               .owner  = THIS_MODULE,
+               .of_match_table = audioinjector_pi_soundcard_of_match,
+       },
+       .probe          = audioinjector_pi_soundcard_probe,
+};
+
+module_platform_driver(audioinjector_pi_soundcard_driver);
+MODULE_AUTHOR("Matt Flax <flatmax@flatmax.org>");
+MODULE_DESCRIPTION("AudioInjector.net Pi Soundcard");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:audioinjector-pi-soundcard");
+
--- /dev/null
+++ b/sound/soc/bcm/audiosense-pi.c
@@ -0,0 +1,248 @@
+/*
+ * ASoC Driver for AudioSense add on soundcard
+ * Author:
+ *     Bhargav A K <anur.bhargav@gmail.com>
+ *     Copyright 2017
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/i2c.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <sound/control.h>
+
+#include <sound/tlv320aic32x4.h>
+#include "../codecs/tlv320aic32x4.h"
+
+#define AIC32X4_SYSCLK_XTAL    0x00
+
+/*
+ * Setup Codec Sample Rates and Channels
+ * Supported Rates:
+ *     8000, 11025, 16000, 22050, 32000, 44100, 48000, 64000, 88200, 96000,
+ */
+static const unsigned int audiosense_pi_rate[] = {
+       48000,
+};
+
+static struct snd_pcm_hw_constraint_list audiosense_constraints_rates = {
+       .list = audiosense_pi_rate,
+       .count = ARRAY_SIZE(audiosense_pi_rate),
+};
+
+static const unsigned int audiosense_pi_channels[] = {
+       2,
+};
+
+static struct snd_pcm_hw_constraint_list audiosense_constraints_ch = {
+       .count = ARRAY_SIZE(audiosense_pi_channels),
+       .list = audiosense_pi_channels,
+       .mask = 0,
+};
+
+/* Setup DAPM widgets and paths */
+static const struct snd_soc_dapm_widget audiosense_pi_dapm_widgets[] = {
+       SND_SOC_DAPM_HP("Headphone Jack", NULL),
+       SND_SOC_DAPM_LINE("Line Out", NULL),
+       SND_SOC_DAPM_LINE("Line In", NULL),
+       SND_SOC_DAPM_INPUT("CM_L"),
+       SND_SOC_DAPM_INPUT("CM_R"),
+};
+
+static const struct snd_soc_dapm_route audiosense_pi_audio_map[] = {
+       /* Line Inputs are connected to
+        * (IN1_L | IN1_R)
+        * (IN2_L | IN2_R)
+        * (IN3_L | IN3_R)
+        */
+       {"IN1_L", NULL, "Line In"},
+       {"IN1_R", NULL, "Line In"},
+       {"IN2_L", NULL, "Line In"},
+       {"IN2_R", NULL, "Line In"},
+       {"IN3_L", NULL, "Line In"},
+       {"IN3_R", NULL, "Line In"},
+
+       /* Mic is connected to IN2_L and IN2_R */
+       {"Left ADC", NULL, "Mic Bias"},
+       {"Right ADC", NULL, "Mic Bias"},
+
+       /* Headphone connected to HPL, HPR */
+       {"Headphone Jack", NULL, "HPL"},
+       {"Headphone Jack", NULL, "HPR"},
+
+       /* Speakers connected to LOL and LOR */
+       {"Line Out", NULL, "LOL"},
+       {"Line Out", NULL, "LOR"},
+};
+
+static int audiosense_pi_card_init(struct snd_soc_pcm_runtime *rtd)
+{
+       /* TODO: init of the codec specific dapm data, ignore suspend/resume */
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+       snd_soc_component_update_bits(component, AIC32X4_MICBIAS, 0x78,
+                                     AIC32X4_MICBIAS_LDOIN |
+                                     AIC32X4_MICBIAS_2075V);
+       snd_soc_component_update_bits(component, AIC32X4_PWRCFG, 0x08,
+                                     AIC32X4_AVDDWEAKDISABLE);
+       snd_soc_component_update_bits(component, AIC32X4_LDOCTL, 0x01,
+                                     AIC32X4_LDOCTLEN);
+
+       return 0;
+}
+
+static int audiosense_pi_card_hw_params(
+               struct snd_pcm_substream *substream,
+               struct snd_pcm_hw_params *params)
+{
+       int ret = 0;
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+
+       /* Set the codec system clock, there is a 12 MHz XTAL on the board */
+       ret = snd_soc_dai_set_sysclk(codec_dai, AIC32X4_SYSCLK_XTAL,
+                                    12000000, SND_SOC_CLOCK_IN);
+       if (ret) {
+               dev_err(rtd->card->dev,
+                       "could not set codec driver clock params\n");
+               return ret;
+       }
+       return 0;
+}
+
+static int audiosense_pi_card_startup(struct snd_pcm_substream *substream)
+{
+       struct snd_pcm_runtime *runtime = substream->runtime;
+
+       /*
+        * Set codec to 48Khz Sampling, Stereo I/O and 16 bit audio
+        */
+       runtime->hw.channels_max = 2;
+       snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+                                  &audiosense_constraints_ch);
+
+       runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
+       snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
+
+
+       snd_pcm_hw_constraint_list(substream->runtime, 0,
+                                  SNDRV_PCM_HW_PARAM_RATE,
+                                  &audiosense_constraints_rates);
+       return 0;
+}
+
+static struct snd_soc_ops audiosense_pi_card_ops = {
+       .startup = audiosense_pi_card_startup,
+       .hw_params = audiosense_pi_card_hw_params,
+};
+
+SND_SOC_DAILINK_DEFS(audiosense_pi,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic32x4.1-0018", "tlv320aic32x4-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link audiosense_pi_card_dai[] = {
+       {
+               .name           = "TLV320AIC3204 Audio",
+               .stream_name    = "TLV320AIC3204 Hifi Audio",
+               .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                       SND_SOC_DAIFMT_CBM_CFM,
+               .ops            = &audiosense_pi_card_ops,
+               .init           = audiosense_pi_card_init,
+               SND_SOC_DAILINK_REG(audiosense_pi),
+       },
+};
+
+static struct snd_soc_card audiosense_pi_card = {
+       .name           = "audiosense-pi",
+       .driver_name    = "audiosense-pi",
+       .dai_link       = audiosense_pi_card_dai,
+       .owner          = THIS_MODULE,
+       .num_links      = ARRAY_SIZE(audiosense_pi_card_dai),
+       .dapm_widgets   = audiosense_pi_dapm_widgets,
+       .num_dapm_widgets = ARRAY_SIZE(audiosense_pi_dapm_widgets),
+       .dapm_routes    = audiosense_pi_audio_map,
+       .num_dapm_routes = ARRAY_SIZE(audiosense_pi_audio_map),
+};
+
+static int audiosense_pi_card_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+       struct snd_soc_card *card = &audiosense_pi_card;
+       struct snd_soc_dai_link *dai = &audiosense_pi_card_dai[0];
+       struct device_node *i2s_node = pdev->dev.of_node;
+
+       card->dev = &pdev->dev;
+
+       if (!dai) {
+               dev_err(&pdev->dev, "DAI not found. Missing or Invalid\n");
+               return -EINVAL;
+       }
+
+       i2s_node = of_parse_phandle(pdev->dev.of_node, "i2s-controller", 0);
+       if (!i2s_node) {
+               dev_err(&pdev->dev,
+                       "Property 'i2s-controller' missing or invalid\n");
+               return -EINVAL;
+       }
+
+       dai->cpus->dai_name = NULL;
+       dai->cpus->of_node = i2s_node;
+       dai->platforms->name = NULL;
+       dai->platforms->of_node = i2s_node;
+
+       of_node_put(i2s_node);
+
+       ret = snd_soc_register_card(card);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev,
+                       "snd_soc_register_card() failed: %d\n", ret);
+
+       return ret;
+}
+
+static int audiosense_pi_card_remove(struct platform_device *pdev)
+{
+       struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+       snd_soc_unregister_card(card);
+       return 0;
+}
+
+static const struct of_device_id audiosense_pi_card_of_match[] = {
+       { .compatible = "as,audiosense-pi", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, audiosense_pi_card_of_match);
+
+static struct platform_driver audiosense_pi_card_driver = {
+       .driver = {
+               .name = "audiosense-snd-card",
+               .owner = THIS_MODULE,
+               .of_match_table = audiosense_pi_card_of_match,
+       },
+       .probe = audiosense_pi_card_probe,
+       .remove = audiosense_pi_card_remove,
+};
+
+module_platform_driver(audiosense_pi_card_driver);
+
+MODULE_AUTHOR("Bhargav AK <anur.bhargav@gmail.com>");
+MODULE_DESCRIPTION("ASoC Driver for TLV320AIC3204 Audio");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:audiosense-pi");
+
--- /dev/null
+++ b/sound/soc/bcm/chipdip-dac.c
@@ -0,0 +1,275 @@
+/*
+ * ASoC Driver for ChipDip DAC
+ *
+ * Author:     Evgenij Sapunov
+ *             Copyright 2021
+ *             based on code by Milan Neskovic <info@justboom.co>
+ *             based on code by Jaikumar <jaikumar@cem-solutions.net>
+ *
+ * Thanks to Phil Elwell (pelwell) for help.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/gpio/consumer.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#define SR_BIT_0                  0 //sample rate bits
+#define SR_BIT_1                  1
+#define SR_BIT_2                  2
+#define BD_BIT_0                  3 //bit depth bits
+#define BD_BIT_1                  4
+
+#define SAMPLE_RATE_MASK_44_1     0
+#define SAMPLE_RATE_MASK_48       (1 << SR_BIT_0)
+#define SAMPLE_RATE_MASK_88_2     ((1 << SR_BIT_2) | (1 << SR_BIT_1))
+#define SAMPLE_RATE_MASK_96       (1 << SR_BIT_1)
+#define SAMPLE_RATE_MASK_176_4    ((1 << SR_BIT_2) | (1 << SR_BIT_1) | (1 << SR_BIT_0))
+#define SAMPLE_RATE_MASK_192      ((1 << SR_BIT_1) | (1 << SR_BIT_0))
+#define SAMPLE_RATE_MASK          ((1 << SR_BIT_2) | (1 << SR_BIT_1) | (1 << SR_BIT_0))
+
+#define BIT_DEPTH_MASK_16         0
+#define BIT_DEPTH_MASK_24         (1 << BD_BIT_0)
+#define BIT_DEPTH_MASK_32         (1 << BD_BIT_1)
+#define BIT_DEPTH_MASK            ((1 << BD_BIT_1) | (1 << BD_BIT_0))
+
+#define MUTE_ACTIVE               0
+#define MUTE_NOT_ACTIVE           1
+
+#define HW_PARAMS_GPIO_COUNT      5
+
+static struct gpio_desc *mute_gpio;
+static struct gpio_desc *sdwn_gpio;
+static struct gpio_desc *hw_params_gpios[HW_PARAMS_GPIO_COUNT];
+static int current_width;
+static int current_rate;
+
+static void snd_rpi_chipdip_dac_gpio_array_set(int value);
+static void snd_rpi_chipdip_dac_gpio_set(struct gpio_desc *gpio_item, int value);
+
+static void snd_rpi_chipdip_dac_gpio_array_set(int value)
+{
+       int i = 0;
+
+       for (i = 0; i < HW_PARAMS_GPIO_COUNT; i++)
+               snd_rpi_chipdip_dac_gpio_set(hw_params_gpios[i], ((value >> i) & 1));
+}
+
+static void snd_rpi_chipdip_dac_gpio_set(struct gpio_desc *gpio_item, int value)
+{
+       if (gpio_item)
+               gpiod_set_value_cansleep(gpio_item, value);
+}
+
+static int snd_rpi_chipdip_dac_init(struct snd_soc_pcm_runtime *rtd)
+{
+       return 0;
+}
+
+static int snd_rpi_chipdip_dac_hw_params(struct snd_pcm_substream *substream,
+                                        struct snd_pcm_hw_params *params)
+{
+       int ret = 0;
+       int gpio_change_pending = 0;
+       int sample_rate_state = 0;
+       int bit_depth_state = 0;
+       int param_value = params_width(params);
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+       ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), 2 * 32);
+
+       if (current_width != param_value) {
+               current_width = param_value;
+               gpio_change_pending = 1;
+
+               switch (param_value) {
+               case 16:
+                       bit_depth_state = BIT_DEPTH_MASK_16;
+                       break;
+               case 24:
+                       bit_depth_state = BIT_DEPTH_MASK_24;
+                       break;
+               case 32:
+                       bit_depth_state = BIT_DEPTH_MASK_32;
+                       break;
+               default:
+                       return -EINVAL;
+               }
+       }
+
+       param_value = params_rate(params);
+       if (current_rate != param_value) {
+               current_rate = param_value;
+               gpio_change_pending = 1;
+
+               switch (param_value) {
+               case 44100:
+                       sample_rate_state = SAMPLE_RATE_MASK_44_1;
+                       break;
+               case 48000:
+                       sample_rate_state = SAMPLE_RATE_MASK_48;
+                       break;
+               case 88200:
+                       sample_rate_state = SAMPLE_RATE_MASK_88_2;
+                       break;
+               case 96000:
+                       sample_rate_state = SAMPLE_RATE_MASK_96;
+                       break;
+               case 176400:
+                       sample_rate_state = SAMPLE_RATE_MASK_176_4;
+                       break;
+               case 192000:
+                       sample_rate_state = SAMPLE_RATE_MASK_192;
+                       break;
+               default:
+                       return -EINVAL;
+               }
+       }
+
+       if (gpio_change_pending) {
+               snd_rpi_chipdip_dac_gpio_set(mute_gpio, MUTE_ACTIVE);
+               snd_rpi_chipdip_dac_gpio_array_set(bit_depth_state | sample_rate_state);
+               msleep(300);
+               snd_rpi_chipdip_dac_gpio_set(mute_gpio, MUTE_NOT_ACTIVE);
+       }
+
+       return ret;
+}
+
+static int snd_rpi_chipdip_dac_startup(struct snd_pcm_substream *substream)
+{
+       return 0;
+}
+
+static void snd_rpi_chipdip_dac_shutdown(struct snd_pcm_substream *substream)
+{
+
+}
+
+/* machine stream operations */
+static struct snd_soc_ops snd_rpi_chipdip_dac_ops = {
+       .hw_params = snd_rpi_chipdip_dac_hw_params,
+       .startup = snd_rpi_chipdip_dac_startup,
+       .shutdown = snd_rpi_chipdip_dac_shutdown,
+};
+
+SND_SOC_DAILINK_DEFS(hifi,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("spdif-transmitter", "dit-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link snd_rpi_chipdip_dac_dai[] = {
+{
+       .name           = "ChipDip DAC",
+       .stream_name    = "ChipDip DAC HiFi",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                               SND_SOC_DAIFMT_CBM_CFM,
+       .ops            = &snd_rpi_chipdip_dac_ops,
+       .init           = snd_rpi_chipdip_dac_init,
+       SND_SOC_DAILINK_REG(hifi),
+},
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_rpi_chipdip_dac = {
+       .name         = "ChipDipDAC",
+       .driver_name  = "ChipdipDac",
+       .owner        = THIS_MODULE,
+       .dai_link     = snd_rpi_chipdip_dac_dai,
+       .num_links    = ARRAY_SIZE(snd_rpi_chipdip_dac_dai),
+};
+
+static int snd_rpi_chipdip_dac_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+       int i = 0;
+
+       snd_rpi_chipdip_dac.dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_dai_link *dai = &snd_rpi_chipdip_dac_dai[0];
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                                       "i2s-controller", 0);
+
+               if (i2s_node) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_node;
+               }
+       }
+
+       hw_params_gpios[SR_BIT_0] = devm_gpiod_get_optional(&pdev->dev, "sr0", GPIOD_OUT_LOW);
+       hw_params_gpios[SR_BIT_1] = devm_gpiod_get_optional(&pdev->dev, "sr1", GPIOD_OUT_LOW);
+       hw_params_gpios[SR_BIT_2] = devm_gpiod_get_optional(&pdev->dev, "sr2", GPIOD_OUT_LOW);
+       hw_params_gpios[BD_BIT_0] = devm_gpiod_get_optional(&pdev->dev, "res0", GPIOD_OUT_LOW);
+       hw_params_gpios[BD_BIT_1] = devm_gpiod_get_optional(&pdev->dev, "res1", GPIOD_OUT_LOW);
+       mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute", GPIOD_OUT_LOW);
+       sdwn_gpio = devm_gpiod_get_optional(&pdev->dev, "sdwn", GPIOD_OUT_HIGH);
+
+       for (i = 0; i < HW_PARAMS_GPIO_COUNT; i++) {
+               if (IS_ERR(hw_params_gpios[i])) {
+                       ret = PTR_ERR(hw_params_gpios[i]);
+                       dev_err(&pdev->dev, "failed to get hw_params gpio: %d\n", ret);
+                       return ret;
+               }
+       }
+
+       if (IS_ERR(mute_gpio)) {
+               ret = PTR_ERR(mute_gpio);
+               dev_err(&pdev->dev, "failed to get mute gpio: %d\n", ret);
+               return ret;
+       }
+
+       if (IS_ERR(sdwn_gpio)) {
+               ret = PTR_ERR(sdwn_gpio);
+               dev_err(&pdev->dev, "failed to get sdwn gpio: %d\n", ret);
+               return ret;
+       }
+
+       snd_rpi_chipdip_dac_gpio_set(sdwn_gpio, 1);
+
+       ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_chipdip_dac);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev,
+                       "snd_soc_register_card() failed: %d\n", ret);
+
+       return ret;
+}
+
+static const struct of_device_id snd_rpi_chipdip_dac_of_match[] = {
+       { .compatible = "chipdip,chipdip-dac", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, snd_rpi_chipdip_dac_of_match);
+
+static struct platform_driver snd_rpi_chipdip_dac_driver = {
+       .driver = {
+               .name   = "snd-rpi-chipdip-dac",
+               .owner  = THIS_MODULE,
+               .of_match_table = snd_rpi_chipdip_dac_of_match,
+       },
+       .probe          = snd_rpi_chipdip_dac_probe,
+};
+
+module_platform_driver(snd_rpi_chipdip_dac_driver);
+
+MODULE_AUTHOR("Evgenij Sapunov <evgenij.sapunov@chipdip.ru>");
+MODULE_DESCRIPTION("ASoC Driver for ChipDip DAC");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/dacberry400.c
@@ -0,0 +1,259 @@
+/*
+ * ASoC Driver for Dacberry400 soundcard
+ * Author:
+ *      Ashish Vara<ashishhvara@gmail.com>
+ *      Copyright 2022
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/gpio/consumer.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <linux/i2c.h>
+#include <linux/acpi.h>
+#include <linux/slab.h>
+#include "../sound/soc/codecs/tlv320aic3x.h"
+
+static const struct snd_kcontrol_new dacberry400_controls[] = {
+       SOC_DAPM_PIN_SWITCH("MIC Jack"),
+       SOC_DAPM_PIN_SWITCH("Line In"),
+       SOC_DAPM_PIN_SWITCH("Line Out"),
+       SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+};
+
+static const struct snd_soc_dapm_widget dacberry400_widgets[] = {
+       SND_SOC_DAPM_HP("Headphone Jack", NULL),
+       SND_SOC_DAPM_MIC("MIC Jack", NULL),
+       SND_SOC_DAPM_LINE("Line In", NULL),
+       SND_SOC_DAPM_LINE("Line Out", NULL),
+};
+
+static const struct snd_soc_dapm_route dacberry400_audio_map[] = {
+       {"Headphone Jack", NULL, "HPLOUT"},
+       {"Headphone Jack", NULL, "HPROUT"},
+
+       {"LINE1L", NULL, "Line In"},
+       {"LINE1R", NULL, "Line In"},
+
+       {"Line Out", NULL, "LLOUT"},
+       {"Line Out", NULL, "RLOUT"},
+
+       {"MIC3L", NULL, "MIC Jack"},
+       {"MIC3R", NULL, "MIC Jack"},
+};
+
+static int snd_rpi_dacberry400_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+       struct snd_soc_component *component = codec_dai->component;
+       int ret;
+
+       ret = snd_soc_dai_set_sysclk(codec_dai, 2, 12000000,
+                                       SND_SOC_CLOCK_OUT);
+
+       if (ret && ret != -ENOTSUPP)
+               goto err;
+
+       snd_soc_component_write(component, HPRCOM_CFG, 0x20);
+       snd_soc_component_write(component, DACL1_2_HPLOUT_VOL, 0x80);
+       snd_soc_component_write(component, DACR1_2_HPROUT_VOL, 0x80);
+err:
+       return ret;
+}
+
+static int snd_rpi_dacberry400_set_bias_level(struct snd_soc_card *card,
+       struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level)
+{
+       struct snd_soc_pcm_runtime *rtd;
+       struct snd_soc_dai *codec_dai;
+       struct snd_soc_component *component;
+       struct dacberry_priv *aic3x;
+       u8 hpcom_reg = 0;
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+       codec_dai = asoc_rtd_to_codec(rtd, 0);
+       component = codec_dai->component;
+       aic3x = snd_soc_component_get_drvdata(component);
+       if (dapm->dev != codec_dai->dev)
+               return 0;
+
+       switch (level) {
+       case SND_SOC_BIAS_PREPARE:
+               if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
+                       break;
+               /* UNMUTE ADC/DAC */
+               hpcom_reg = snd_soc_component_read(component, HPLCOM_CFG);
+               snd_soc_component_write(component, HPLCOM_CFG, hpcom_reg | 0x20);
+               snd_soc_component_write(component, LINE1R_2_RADC_CTRL, 0x04);
+               snd_soc_component_write(component, LINE1L_2_LADC_CTRL, 0x04);
+               snd_soc_component_write(component, LADC_VOL, 0x00);
+               snd_soc_component_write(component, RADC_VOL, 0x00);
+               pr_info("%s: unmute ADC/DAC\n", __func__);
+               break;
+
+       case SND_SOC_BIAS_STANDBY:
+               if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
+                       break;
+               /* MUTE ADC/DAC */
+               snd_soc_component_write(component, LDAC_VOL, 0x80);
+               snd_soc_component_write(component, RDAC_VOL, 0x80);
+               snd_soc_component_write(component, LADC_VOL, 0x80);
+               snd_soc_component_write(component, RADC_VOL, 0x80);
+               snd_soc_component_write(component, LINE1R_2_RADC_CTRL, 0x00);
+               snd_soc_component_write(component, LINE1L_2_LADC_CTRL, 0x00);
+               snd_soc_component_write(component, HPLCOM_CFG, 0x00);
+               pr_info("%s: mute ADC/DAC\n", __func__);
+               break;
+       default:
+               break;
+       }
+
+       return 0;
+}
+
+static int snd_rpi_dacberry400_hw_params(struct snd_pcm_substream *substream,
+                                          struct snd_pcm_hw_params *params)
+{
+       int ret = 0;
+       u8 data;
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+       struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+       struct snd_soc_component *component = codec_dai->component;
+       int fsref = (params_rate(params) % 11025 == 0) ? 44100 : 48000;
+       int channels = params_channels(params);
+       int width = 32;
+       u8 clock = 0;
+
+       data = (LDAC2LCH | RDAC2RCH);
+       data |= (fsref == 44100) ? FSREF_44100 : FSREF_48000;
+       if (params_rate(params) >= 64000)
+               data |= DUAL_RATE_MODE;
+       ret = snd_soc_component_write(component, 0x7, data);
+       width = params_width(params);
+
+       clock = snd_soc_component_read(component, 2);
+
+       ret = snd_soc_dai_set_bclk_ratio(cpu_dai, channels*width);
+
+       return ret;
+}
+
+static const struct snd_soc_ops snd_rpi_dacberry400_ops = {
+       .hw_params = snd_rpi_dacberry400_hw_params,
+};
+
+
+SND_SOC_DAILINK_DEFS(rpi_dacberry400,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2835-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x.1-0018", "tlv320aic3x-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2835-i2s.0")));
+
+static struct snd_soc_dai_link snd_rpi_dacberry400_dai[] = {
+{
+       .dai_fmt                = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                                       SND_SOC_DAIFMT_CBS_CFS,
+       .init                   = snd_rpi_dacberry400_init,
+       .ops                    = &snd_rpi_dacberry400_ops,
+       .symmetric_rate         = 1,
+       SND_SOC_DAILINK_REG(rpi_dacberry400),
+},
+};
+
+static struct snd_soc_card snd_rpi_dacberry400 = {
+       .owner                  = THIS_MODULE,
+       .dai_link               = snd_rpi_dacberry400_dai,
+       .num_links              = ARRAY_SIZE(snd_rpi_dacberry400_dai),
+       .controls               = dacberry400_controls,
+       .num_controls           = ARRAY_SIZE(dacberry400_controls),
+       .dapm_widgets           = dacberry400_widgets,
+       .num_dapm_widgets       = ARRAY_SIZE(dacberry400_widgets),
+       .dapm_routes            = dacberry400_audio_map,
+       .num_dapm_routes        = ARRAY_SIZE(dacberry400_audio_map),
+       .set_bias_level         = snd_rpi_dacberry400_set_bias_level,
+};
+
+static int snd_rpi_dacberry400_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+
+       snd_rpi_dacberry400.dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_card *card = &snd_rpi_dacberry400;
+               struct snd_soc_dai_link *dai = &snd_rpi_dacberry400_dai[0];
+
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                                           "i2s-controller", 0);
+               if (i2s_node) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_node;
+                       of_node_put(i2s_node);
+               }
+
+               if (of_property_read_string(pdev->dev.of_node, "card_name",
+                                           &card->name))
+                       card->name = "tlvaudioCODEC";
+
+               if (of_property_read_string(pdev->dev.of_node, "dai_name",
+                                           &dai->name))
+                       dai->name = "tlvaudio CODEC";
+
+       }
+
+       ret = snd_soc_register_card(&snd_rpi_dacberry400);
+       if (ret) {
+               if (ret != -EPROBE_DEFER)
+                       dev_err(&pdev->dev,
+                               "snd_soc_register_card() failed: %d\n", ret);
+               return ret;
+       }
+
+       return 0;
+}
+
+static int snd_rpi_dacberry400_remove(struct platform_device *pdev)
+{
+       snd_soc_unregister_card(&snd_rpi_dacberry400);
+       return 0;
+}
+
+static const struct of_device_id dacberry400_match_id[] = {
+       { .compatible = "osaelectronics,dacberry400",},
+       {},
+};
+MODULE_DEVICE_TABLE(of, dacberry400_match_id);
+
+static struct platform_driver snd_rpi_dacberry400_driver = {
+       .driver = {
+               .name = "snd-rpi-dacberry400",
+               .owner = THIS_MODULE,
+               .of_match_table = dacberry400_match_id,
+       },
+       .probe = snd_rpi_dacberry400_probe,
+       .remove = snd_rpi_dacberry400_remove,
+};
+
+module_platform_driver(snd_rpi_dacberry400_driver);
+
+MODULE_AUTHOR("Ashish Vara");
+MODULE_DESCRIPTION("Dacberry400 sound card driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:dacberry400");
+MODULE_SOFTDEP("pre: snd-soc-tlv320aic3x");
--- /dev/null
+++ b/sound/soc/bcm/digidac1-soundcard.c
@@ -0,0 +1,421 @@
+/*
+ * ASoC Driver for RRA DigiDAC1
+ * Copyright 2016
+ * Author: José M. Tasende <vintage@redrocksaudio.es>
+ * based on the HifiBerry DAC driver by Florian Meier <florian.meier@koalo.de>
+ * and the Wolfson card driver by Nikesh Oswal, <Nikesh.Oswal@wolfsonmicro.com>
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <sound/soc-dapm.h>
+#include <sound/tlv.h>
+#include <linux/regulator/consumer.h>
+
+#include "../codecs/wm8804.h"
+#include "../codecs/wm8741.h"
+
+#define WM8741_NUM_SUPPLIES 2
+
+/* codec private data */
+struct wm8741_priv {
+       struct wm8741_platform_data pdata;
+       struct regmap *regmap;
+       struct regulator_bulk_data supplies[WM8741_NUM_SUPPLIES];
+       unsigned int sysclk;
+       const struct snd_pcm_hw_constraint_list *sysclk_constraints;
+};
+
+static int samplerate = 44100;
+
+/* New Alsa Controls not exposed by original wm8741 codec driver       */
+/* in actual driver the att. adjustment is wrong because               */
+/* this DAC has a coarse attenuation register with 4dB steps           */
+/* and a fine level register with 0.125dB steps                                */
+/* each register has 32 steps so combining both we have        1024 steps      */
+/* of 0.125 dB.                                                                */
+/* The original level controls from driver are removed at startup      */
+/* and replaced by the corrected ones.                                 */
+/* The same wm8741 driver can be used for wm8741 and wm8742 devices    */
+
+static const DECLARE_TLV_DB_SCALE(dac_tlv_fine, 0, 13, 0);
+static const DECLARE_TLV_DB_SCALE(dac_tlv_coarse, -12700, 400, 1);
+static const char *w8741_dither[4] = {"Off", "RPDF", "TPDF", "HPDF"};
+static const char *w8741_filter[5] = {
+               "Type 1", "Type 2", "Type 3", "Type 4", "Type 5"};
+static const char *w8741_switch[2] = {"Off", "On"};
+static const struct soc_enum w8741_enum[] = {
+SOC_ENUM_SINGLE(WM8741_MODE_CONTROL_2, 0, 4, w8741_dither),/* dithering type */
+SOC_ENUM_SINGLE(WM8741_FILTER_CONTROL, 0, 5, w8741_filter),/* filter type */
+SOC_ENUM_SINGLE(WM8741_FORMAT_CONTROL, 6, 2, w8741_switch),/* phase invert */
+SOC_ENUM_SINGLE(WM8741_VOLUME_CONTROL, 0, 2, w8741_switch),/* volume ramp */
+SOC_ENUM_SINGLE(WM8741_VOLUME_CONTROL, 3, 2, w8741_switch),/* soft mute */
+};
+
+static const struct snd_kcontrol_new w8741_snd_controls_stereo[] = {
+SOC_DOUBLE_R_TLV("DAC Fine Playback Volume", WM8741_DACLLSB_ATTENUATION,
+               WM8741_DACRLSB_ATTENUATION, 0, 31, 1, dac_tlv_fine),
+SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8741_DACLMSB_ATTENUATION,
+               WM8741_DACRMSB_ATTENUATION, 0, 31, 1, dac_tlv_coarse),
+SOC_ENUM("DAC Dither", w8741_enum[0]),
+SOC_ENUM("DAC Digital Filter", w8741_enum[1]),
+SOC_ENUM("DAC Phase Invert", w8741_enum[2]),
+SOC_ENUM("DAC Volume Ramp", w8741_enum[3]),
+SOC_ENUM("DAC Soft Mute", w8741_enum[4]),
+};
+
+static const struct snd_kcontrol_new w8741_snd_controls_mono_left[] = {
+SOC_SINGLE_TLV("DAC Fine Playback Volume", WM8741_DACLLSB_ATTENUATION,
+               0, 31, 0, dac_tlv_fine),
+SOC_SINGLE_TLV("Digital Playback Volume", WM8741_DACLMSB_ATTENUATION,
+               0, 31, 1, dac_tlv_coarse),
+SOC_ENUM("DAC Dither", w8741_enum[0]),
+SOC_ENUM("DAC Digital Filter", w8741_enum[1]),
+SOC_ENUM("DAC Phase Invert", w8741_enum[2]),
+SOC_ENUM("DAC Volume Ramp", w8741_enum[3]),
+SOC_ENUM("DAC Soft Mute", w8741_enum[4]),
+};
+
+static const struct snd_kcontrol_new w8741_snd_controls_mono_right[] = {
+SOC_SINGLE_TLV("DAC Fine Playback Volume", WM8741_DACRLSB_ATTENUATION,
+       0, 31, 0, dac_tlv_fine),
+SOC_SINGLE_TLV("Digital Playback Volume", WM8741_DACRMSB_ATTENUATION,
+       0, 31, 1, dac_tlv_coarse),
+SOC_ENUM("DAC Dither", w8741_enum[0]),
+SOC_ENUM("DAC Digital Filter", w8741_enum[1]),
+SOC_ENUM("DAC Phase Invert", w8741_enum[2]),
+SOC_ENUM("DAC Volume Ramp", w8741_enum[3]),
+SOC_ENUM("DAC Soft Mute", w8741_enum[4]),
+};
+
+static int w8741_add_controls(struct snd_soc_component *component)
+{
+       struct wm8741_priv *wm8741 = snd_soc_component_get_drvdata(component);
+
+       switch (wm8741->pdata.diff_mode) {
+       case WM8741_DIFF_MODE_STEREO:
+       case WM8741_DIFF_MODE_STEREO_REVERSED:
+               snd_soc_add_component_controls(component,
+                               w8741_snd_controls_stereo,
+                               ARRAY_SIZE(w8741_snd_controls_stereo));
+               break;
+       case WM8741_DIFF_MODE_MONO_LEFT:
+               snd_soc_add_component_controls(component,
+                               w8741_snd_controls_mono_left,
+                               ARRAY_SIZE(w8741_snd_controls_mono_left));
+               break;
+       case WM8741_DIFF_MODE_MONO_RIGHT:
+               snd_soc_add_component_controls(component,
+                               w8741_snd_controls_mono_right,
+                               ARRAY_SIZE(w8741_snd_controls_mono_right));
+               break;
+       default:
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
+static int digidac1_soundcard_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       struct snd_soc_card *card = rtd->card;
+       struct snd_soc_pcm_runtime *wm8741_rtd;
+       struct snd_soc_component *wm8741_component;
+       struct snd_card *sound_card = card->snd_card;
+       struct snd_kcontrol *kctl;
+       int ret;
+
+       wm8741_rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[1]);
+       if (!wm8741_rtd) {
+               dev_warn(card->dev, "digidac1_soundcard_init: couldn't get wm8741 rtd\n");
+               return -EFAULT;
+       }
+       wm8741_component = asoc_rtd_to_codec(wm8741_rtd, 0)->component;
+       ret = w8741_add_controls(wm8741_component);
+       if (ret < 0)
+               dev_warn(card->dev, "Failed to add new wm8741 controls: %d\n",
+               ret);
+
+       /* enable TX output */
+       snd_soc_component_update_bits(component, WM8804_PWRDN, 0x4, 0x0);
+
+       kctl = snd_soc_card_get_kcontrol(card,
+               "Playback Volume");
+       if (kctl) {
+               kctl->vd[0].access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
+               snd_ctl_remove(sound_card, kctl);
+               }
+       kctl = snd_soc_card_get_kcontrol(card,
+               "Fine Playback Volume");
+       if (kctl) {
+               kctl->vd[0].access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
+               snd_ctl_remove(sound_card, kctl);
+               }
+       return 0;
+}
+
+static int digidac1_soundcard_startup(struct snd_pcm_substream *substream)
+{
+       /* turn on wm8804 digital output */
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       struct snd_soc_card *card = rtd->card;
+       struct snd_soc_pcm_runtime *wm8741_rtd;
+       struct snd_soc_component *wm8741_component;
+
+       snd_soc_component_update_bits(component, WM8804_PWRDN, 0x3c, 0x00);
+       wm8741_rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[1]);
+       if (!wm8741_rtd) {
+               dev_warn(card->dev, "digidac1_soundcard_startup: couldn't get WM8741 rtd\n");
+               return -EFAULT;
+       }
+       wm8741_component = asoc_rtd_to_codec(wm8741_rtd, 0)->component;
+
+       /* latch wm8741 level */
+       snd_soc_component_update_bits(wm8741_component, WM8741_DACLLSB_ATTENUATION,
+               WM8741_UPDATELL, WM8741_UPDATELL);
+       snd_soc_component_update_bits(wm8741_component, WM8741_DACLMSB_ATTENUATION,
+               WM8741_UPDATELM, WM8741_UPDATELM);
+       snd_soc_component_update_bits(wm8741_component, WM8741_DACRLSB_ATTENUATION,
+               WM8741_UPDATERL, WM8741_UPDATERL);
+       snd_soc_component_update_bits(wm8741_component, WM8741_DACRMSB_ATTENUATION,
+               WM8741_UPDATERM, WM8741_UPDATERM);
+
+       return 0;
+}
+
+static void digidac1_soundcard_shutdown(struct snd_pcm_substream *substream)
+{
+       /* turn off wm8804 digital output */
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+       snd_soc_component_update_bits(component, WM8804_PWRDN, 0x3c, 0x3c);
+}
+
+static int digidac1_soundcard_hw_params(struct snd_pcm_substream *substream,
+                                      struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+       struct snd_soc_card *card = rtd->card;
+       struct snd_soc_pcm_runtime *wm8741_rtd;
+       struct snd_soc_component *wm8741_component;
+
+       int sysclk = 27000000;
+       long mclk_freq = 0;
+       int mclk_div = 1;
+       int sampling_freq = 1;
+       int ret;
+
+       wm8741_rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[1]);
+       if (!wm8741_rtd) {
+               dev_warn(card->dev, "digidac1_soundcard_hw_params: couldn't get WM8741 rtd\n");
+               return -EFAULT;
+       }
+       wm8741_component = asoc_rtd_to_codec(wm8741_rtd, 0)->component;
+       samplerate = params_rate(params);
+
+       if (samplerate <= 96000) {
+               mclk_freq = samplerate*256;
+               mclk_div = WM8804_MCLKDIV_256FS;
+       } else {
+               mclk_freq = samplerate*128;
+               mclk_div = WM8804_MCLKDIV_128FS;
+               }
+
+       switch (samplerate) {
+       case 32000:
+               sampling_freq = 0x03;
+               break;
+       case 44100:
+               sampling_freq = 0x00;
+               break;
+       case 48000:
+               sampling_freq = 0x02;
+               break;
+       case 88200:
+               sampling_freq = 0x08;
+               break;
+       case 96000:
+               sampling_freq = 0x0a;
+               break;
+       case 176400:
+               sampling_freq = 0x0c;
+               break;
+       case 192000:
+               sampling_freq = 0x0e;
+               break;
+       default:
+               dev_err(card->dev,
+               "Failed to set WM8804 SYSCLK, unsupported samplerate %d\n",
+               samplerate);
+       }
+
+       snd_soc_dai_set_clkdiv(codec_dai, WM8804_MCLK_DIV, mclk_div);
+       snd_soc_dai_set_pll(codec_dai, 0, 0, sysclk, mclk_freq);
+
+       ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL,
+               sysclk, SND_SOC_CLOCK_OUT);
+       if (ret < 0) {
+               dev_err(card->dev,
+               "Failed to set WM8804 SYSCLK: %d\n", ret);
+               return ret;
+       }
+       /* Enable wm8804 TX output */
+       snd_soc_component_update_bits(component, WM8804_PWRDN, 0x4, 0x0);
+
+       /* wm8804 Power on */
+       snd_soc_component_update_bits(component, WM8804_PWRDN, 0x9, 0);
+
+       /* wm8804 set sampling frequency status bits */
+       snd_soc_component_update_bits(component, WM8804_SPDTX4, 0x0f, sampling_freq);
+
+       /* Now update wm8741 registers for the correct oversampling */
+       if (samplerate <= 48000)
+               snd_soc_component_update_bits(wm8741_component, WM8741_MODE_CONTROL_1,
+                WM8741_OSR_MASK, 0x00);
+       else if (samplerate <= 96000)
+               snd_soc_component_update_bits(wm8741_component, WM8741_MODE_CONTROL_1,
+                WM8741_OSR_MASK, 0x20);
+       else
+               snd_soc_component_update_bits(wm8741_component, WM8741_MODE_CONTROL_1,
+                WM8741_OSR_MASK, 0x40);
+
+       /* wm8741 bit size */
+       switch (params_width(params)) {
+       case 16:
+               snd_soc_component_update_bits(wm8741_component, WM8741_FORMAT_CONTROL,
+                WM8741_IWL_MASK, 0x00);
+               break;
+       case 20:
+               snd_soc_component_update_bits(wm8741_component, WM8741_FORMAT_CONTROL,
+                WM8741_IWL_MASK, 0x01);
+               break;
+       case 24:
+               snd_soc_component_update_bits(wm8741_component, WM8741_FORMAT_CONTROL,
+                WM8741_IWL_MASK, 0x02);
+               break;
+       case 32:
+               snd_soc_component_update_bits(wm8741_component, WM8741_FORMAT_CONTROL,
+                WM8741_IWL_MASK, 0x03);
+               break;
+       default:
+               dev_dbg(card->dev, "wm8741_hw_params:    Unsupported bit size param = %d",
+                       params_width(params));
+               return -EINVAL;
+       }
+
+       return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
+}
+/* machine stream operations */
+static struct snd_soc_ops digidac1_soundcard_ops = {
+       .hw_params      = digidac1_soundcard_hw_params,
+       .startup        = digidac1_soundcard_startup,
+       .shutdown       = digidac1_soundcard_shutdown,
+};
+
+SND_SOC_DAILINK_DEFS(digidac1,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("wm8804.1-003b", "wm8804-spdif")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2835-i2s.0")));
+
+SND_SOC_DAILINK_DEFS(digidac11,
+       DAILINK_COMP_ARRAY(COMP_CPU("wm8804-spdif")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("wm8741.1-001a", "wm8741")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link digidac1_soundcard_dai[] = {
+       {
+       .name           = "RRA DigiDAC1",
+       .stream_name    = "RRA DigiDAC1 HiFi",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                               SND_SOC_DAIFMT_CBM_CFM,
+       .ops            = &digidac1_soundcard_ops,
+       .init           = digidac1_soundcard_init,
+       SND_SOC_DAILINK_REG(digidac1),
+       },
+       {
+       .name           = "RRA DigiDAC11",
+       .stream_name    = "RRA DigiDAC11 HiFi",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S
+                       | SND_SOC_DAIFMT_NB_NF
+                       | SND_SOC_DAIFMT_CBS_CFS,
+       SND_SOC_DAILINK_REG(digidac11),
+       },
+};
+
+/* audio machine driver */
+static struct snd_soc_card digidac1_soundcard = {
+       .name           = "digidac1-soundcard",
+       .owner          = THIS_MODULE,
+       .dai_link       = digidac1_soundcard_dai,
+       .num_links      = ARRAY_SIZE(digidac1_soundcard_dai),
+};
+
+static int digidac1_soundcard_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+
+       digidac1_soundcard.dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_dai_link *dai = &digidac1_soundcard_dai[0];
+
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                                       "i2s-controller", 0);
+
+               if (i2s_node) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_node;
+               }
+       }
+
+       ret = devm_snd_soc_register_card(&pdev->dev, &digidac1_soundcard);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+                       ret);
+
+       return ret;
+}
+
+static const struct of_device_id digidac1_soundcard_of_match[] = {
+       { .compatible = "rra,digidac1-soundcard", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, digidac1_soundcard_of_match);
+
+static struct platform_driver digidac1_soundcard_driver = {
+       .driver = {
+                       .name           = "digidac1-audio",
+                       .owner          = THIS_MODULE,
+                       .of_match_table = digidac1_soundcard_of_match,
+       },
+       .probe          = digidac1_soundcard_probe,
+};
+
+module_platform_driver(digidac1_soundcard_driver);
+
+MODULE_AUTHOR("José M. Tasende <vintage@redrocksaudio.es>");
+MODULE_DESCRIPTION("ASoC Driver for RRA DigiDAC1");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/dionaudio_loco-v2.c
@@ -0,0 +1,117 @@
+/*
+ * ASoC Driver for Dion Audio LOCO-V2 DAC-AMP
+ *
+ * Author:      Miquel Blauw <info@dionaudio.nl>
+ *              Copyright 2017
+ *
+ * Based on the software of the RPi-DAC writen by Florian Meier
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+static bool digital_gain_0db_limit = true;
+
+static int snd_rpi_dionaudio_loco_v2_init(struct snd_soc_pcm_runtime *rtd)
+{
+       if (digital_gain_0db_limit) {
+               int ret;
+               struct snd_soc_card *card = rtd->card;
+
+               ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
+               if (ret < 0)
+                       dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
+       }
+
+       return 0;
+}
+
+SND_SOC_DAILINK_DEFS(dionaudio_loco_v2,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link snd_rpi_dionaudio_loco_v2_dai[] = {
+{
+       .name           = "DionAudio LOCO-V2",
+       .stream_name    = "DionAudio LOCO-V2 DAC-AMP",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                         SND_SOC_DAIFMT_CBS_CFS,
+       .init           = snd_rpi_dionaudio_loco_v2_init,
+       SND_SOC_DAILINK_REG(dionaudio_loco_v2),
+},};
+
+/* audio machine driver */
+static struct snd_soc_card snd_rpi_dionaudio_loco_v2 = {
+       .name         = "Dion Audio LOCO-V2",
+       .dai_link     = snd_rpi_dionaudio_loco_v2_dai,
+       .num_links    = ARRAY_SIZE(snd_rpi_dionaudio_loco_v2_dai),
+};
+
+static int snd_rpi_dionaudio_loco_v2_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+
+       snd_rpi_dionaudio_loco_v2.dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_dai_link *dai =
+                                       &snd_rpi_dionaudio_loco_v2_dai[0];
+
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                                           "i2s-controller", 0);
+               if (i2s_node) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_node;
+               }
+
+               digital_gain_0db_limit = !of_property_read_bool(
+                       pdev->dev.of_node, "dionaudio,24db_digital_gain");
+       }
+
+       ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_dionaudio_loco_v2);
+       if (ret)
+               dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+                       ret);
+
+       return ret;
+}
+
+static const struct of_device_id dionaudio_of_match[] = {
+       { .compatible = "dionaudio,dionaudio-loco-v2", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, dionaudio_of_match);
+
+static struct platform_driver snd_rpi_dionaudio_loco_v2_driver = {
+       .driver = {
+               .name   = "snd-rpi-dionaudio-loco-v2",
+               .owner  = THIS_MODULE,
+               .of_match_table = dionaudio_of_match,
+       },
+       .probe          = snd_rpi_dionaudio_loco_v2_probe,
+};
+
+module_platform_driver(snd_rpi_dionaudio_loco_v2_driver);
+
+MODULE_AUTHOR("Miquel Blauw <info@dionaudio.nl>");
+MODULE_DESCRIPTION("ASoC Driver for DionAudio LOCO-V2");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/dionaudio_loco.c
@@ -0,0 +1,117 @@
+/*
+ * ASoC Driver for Dion Audio LOCO DAC-AMP
+ *
+ * Author:      Miquel Blauw <info@dionaudio.nl>
+ *              Copyright 2016
+ *
+ * Based on the software of the RPi-DAC writen by Florian Meier
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+static int snd_rpi_dionaudio_loco_hw_params(
+       struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+
+       unsigned int sample_bits =
+               snd_pcm_format_physical_width(params_format(params));
+
+       return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2);
+}
+
+/* machine stream operations */
+static struct snd_soc_ops snd_rpi_dionaudio_loco_ops = {
+       .hw_params = snd_rpi_dionaudio_loco_hw_params,
+};
+
+SND_SOC_DAILINK_DEFS(dionaudio_loco,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("pcm5102a-codec", "pcm5102a-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link snd_rpi_dionaudio_loco_dai[] = {
+{
+       .name           = "DionAudio LOCO",
+       .stream_name    = "DionAudio LOCO DAC-AMP",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S |
+                         SND_SOC_DAIFMT_NB_NF |
+                         SND_SOC_DAIFMT_CBS_CFS,
+       .ops            = &snd_rpi_dionaudio_loco_ops,
+       SND_SOC_DAILINK_REG(dionaudio_loco),
+},
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_rpi_dionaudio_loco = {
+       .name           = "snd_rpi_dionaudio_loco",
+       .dai_link       = snd_rpi_dionaudio_loco_dai,
+       .num_links      = ARRAY_SIZE(snd_rpi_dionaudio_loco_dai),
+};
+
+static int snd_rpi_dionaudio_loco_probe(struct platform_device *pdev)
+{
+       struct device_node *np;
+       int ret = 0;
+
+       snd_rpi_dionaudio_loco.dev = &pdev->dev;
+
+       np = pdev->dev.of_node;
+       if (np) {
+               struct snd_soc_dai_link *dai = &snd_rpi_dionaudio_loco_dai[0];
+               struct device_node *i2s_np;
+
+               i2s_np = of_parse_phandle(np, "i2s-controller", 0);
+               if (i2s_np) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_np;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_np;
+               }
+       }
+
+       ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_dionaudio_loco);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+                       ret);
+
+       return ret;
+}
+
+static const struct of_device_id snd_rpi_dionaudio_loco_of_match[] = {
+       { .compatible = "dionaudio,loco-pcm5242-tpa3118", },
+       { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, snd_rpi_dionaudio_loco_of_match);
+
+static struct platform_driver snd_rpi_dionaudio_loco_driver = {
+       .driver = {
+               .name           = "snd-dionaudio-loco",
+               .owner          = THIS_MODULE,
+               .of_match_table = snd_rpi_dionaudio_loco_of_match,
+       },
+       .probe  = snd_rpi_dionaudio_loco_probe,
+};
+
+module_platform_driver(snd_rpi_dionaudio_loco_driver);
+
+MODULE_AUTHOR("Miquel Blauw <info@dionaudio.nl>");
+MODULE_DESCRIPTION("ASoC Driver for DionAudio LOCO");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/fe-pi-audio.c
@@ -0,0 +1,154 @@
+/*
+ * ASoC Driver for Fe-Pi Audio Sound Card
+ *
+ * Author:     Henry Kupis <kuupaz@gmail.com>
+ *             Copyright 2016
+ *             based on code by Florian Meier <florian.meier@koalo.de>
+ *             based on code by Shawn Guo <shawn.guo@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include "../codecs/sgtl5000.h"
+
+static int snd_fe_pi_audio_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_card *card = rtd->card;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+       snd_soc_dapm_force_enable_pin(&card->dapm, "LO");
+       snd_soc_dapm_force_enable_pin(&card->dapm, "ADC");
+       snd_soc_dapm_force_enable_pin(&card->dapm, "DAC");
+       snd_soc_dapm_force_enable_pin(&card->dapm, "HP");
+       snd_soc_component_update_bits(component, SGTL5000_CHIP_ANA_POWER,
+                       SGTL5000_VAG_POWERUP, SGTL5000_VAG_POWERUP);
+
+       return 0;
+}
+
+static int snd_fe_pi_audio_hw_params(struct snd_pcm_substream *substream,
+       struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct device *dev = rtd->card->dev;
+       struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+
+       int ret;
+
+       /* Set SGTL5000's SYSCLK */
+       ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, 12288000, SND_SOC_CLOCK_IN);
+       if (ret) {
+               dev_err(dev, "could not set codec driver clock params\n");
+               return ret;
+       }
+
+       return 0;
+}
+
+
+static struct snd_soc_ops snd_fe_pi_audio_ops = {
+       .hw_params = snd_fe_pi_audio_hw_params,
+};
+
+SND_SOC_DAILINK_DEFS(fe_pi,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("sgtl5000.1-000a", "sgtl5000")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link snd_fe_pi_audio_dai[] = {
+       {
+               .name           = "FE-PI",
+               .stream_name    = "Fe-Pi HiFi",
+               .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                                       SND_SOC_DAIFMT_CBM_CFM,
+               .ops            = &snd_fe_pi_audio_ops,
+               .init           = snd_fe_pi_audio_init,
+               SND_SOC_DAILINK_REG(fe_pi),
+       },
+};
+
+static const struct snd_soc_dapm_route fe_pi_audio_dapm_routes[] = {
+       {"ADC", NULL, "Mic Bias"},
+};
+
+
+static struct snd_soc_card fe_pi_audio = {
+       .name         = "Fe-Pi Audio",
+       .owner        = THIS_MODULE,
+       .dai_link     = snd_fe_pi_audio_dai,
+       .num_links    = ARRAY_SIZE(snd_fe_pi_audio_dai),
+
+       .dapm_routes = fe_pi_audio_dapm_routes,
+       .num_dapm_routes = ARRAY_SIZE(fe_pi_audio_dapm_routes),
+};
+
+static int snd_fe_pi_audio_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+       struct snd_soc_card *card = &fe_pi_audio;
+       struct device_node *np = pdev->dev.of_node;
+       struct device_node *i2s_node;
+       struct snd_soc_dai_link *dai = &snd_fe_pi_audio_dai[0];
+
+       fe_pi_audio.dev = &pdev->dev;
+
+       i2s_node = of_parse_phandle(np, "i2s-controller", 0);
+       if (!i2s_node) {
+               dev_err(&pdev->dev, "i2s_node phandle missing or invalid\n");
+               return -EINVAL;
+       }
+
+       dai->cpus->dai_name = NULL;
+       dai->cpus->of_node = i2s_node;
+       dai->platforms->name = NULL;
+       dai->platforms->of_node = i2s_node;
+
+       of_node_put(i2s_node);
+
+       card->dev = &pdev->dev;
+       platform_set_drvdata(pdev, card);
+
+       ret = devm_snd_soc_register_card(&pdev->dev, card);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret);
+
+       return ret;
+}
+
+static const struct of_device_id snd_fe_pi_audio_of_match[] = {
+       { .compatible = "fe-pi,fe-pi-audio", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, snd_fe_pi_audio_of_match);
+
+static struct platform_driver snd_fe_pi_audio_driver = {
+        .driver = {
+                .name   = "snd-fe-pi-audio",
+                .owner  = THIS_MODULE,
+                .of_match_table = snd_fe_pi_audio_of_match,
+        },
+        .probe          = snd_fe_pi_audio_probe,
+};
+
+module_platform_driver(snd_fe_pi_audio_driver);
+
+MODULE_AUTHOR("Henry Kupis <fe-pi@cox.net>");
+MODULE_DESCRIPTION("ASoC Driver for Fe-Pi Audio");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/googlevoicehat-codec.c
@@ -0,0 +1,214 @@
+/*
+ * Driver for the Google voiceHAT audio codec for Raspberry Pi.
+ *
+ * Author:     Peter Malkin <petermalkin@google.com>
+ *             Copyright 2016
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/version.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <sound/soc-dapm.h>
+
+#define ICS43432_RATE_MIN_HZ   7190  /* from data sheet */
+#define ICS43432_RATE_MAX_HZ   52800 /* from data sheet */
+/* Delay in enabling SDMODE after clock settles to remove pop */
+#define SDMODE_DELAY_MS                5
+
+struct voicehat_priv {
+       struct delayed_work enable_sdmode_work;
+       struct gpio_desc *sdmode_gpio;
+       unsigned long sdmode_delay_jiffies;
+};
+
+static void voicehat_enable_sdmode_work(struct work_struct *work)
+{
+       struct voicehat_priv *voicehat = container_of(work,
+                                                     struct voicehat_priv,
+                                                     enable_sdmode_work.work);
+       gpiod_set_value(voicehat->sdmode_gpio, 1);
+}
+
+static int voicehat_component_probe(struct snd_soc_component *component)
+{
+       struct voicehat_priv *voicehat =
+                               snd_soc_component_get_drvdata(component);
+
+       voicehat->sdmode_gpio = devm_gpiod_get(component->dev, "sdmode",
+                                              GPIOD_OUT_LOW);
+       if (IS_ERR(voicehat->sdmode_gpio)) {
+               dev_err(component->dev, "Unable to allocate GPIO pin\n");
+               return PTR_ERR(voicehat->sdmode_gpio);
+       }
+
+       INIT_DELAYED_WORK(&voicehat->enable_sdmode_work,
+                         voicehat_enable_sdmode_work);
+       return 0;
+}
+
+static void voicehat_component_remove(struct snd_soc_component *component)
+{
+       struct voicehat_priv *voicehat =
+                               snd_soc_component_get_drvdata(component);
+
+       cancel_delayed_work_sync(&voicehat->enable_sdmode_work);
+}
+
+static const struct snd_soc_dapm_widget voicehat_dapm_widgets[] = {
+       SND_SOC_DAPM_OUTPUT("Speaker"),
+};
+
+static const struct snd_soc_dapm_route voicehat_dapm_routes[] = {
+       {"Speaker", NULL, "HiFi Playback"},
+};
+
+static const struct snd_soc_component_driver voicehat_component_driver = {
+       .probe = voicehat_component_probe,
+       .remove = voicehat_component_remove,
+       .dapm_widgets = voicehat_dapm_widgets,
+       .num_dapm_widgets = ARRAY_SIZE(voicehat_dapm_widgets),
+       .dapm_routes = voicehat_dapm_routes,
+       .num_dapm_routes = ARRAY_SIZE(voicehat_dapm_routes),
+};
+
+static int voicehat_daiops_trigger(struct snd_pcm_substream *substream, int cmd,
+                                  struct snd_soc_dai *dai)
+{
+       struct snd_soc_component *component = dai->component;
+       struct voicehat_priv *voicehat =
+                               snd_soc_component_get_drvdata(component);
+
+       if (voicehat->sdmode_delay_jiffies == 0)
+               return 0;
+
+       dev_dbg(dai->dev, "CMD             %d", cmd);
+       dev_dbg(dai->dev, "Playback Active %d", dai->stream_active[SNDRV_PCM_STREAM_PLAYBACK]);
+       dev_dbg(dai->dev, "Capture Active  %d", dai->stream_active[SNDRV_PCM_STREAM_CAPTURE]);
+
+       switch (cmd) {
+       case SNDRV_PCM_TRIGGER_START:
+       case SNDRV_PCM_TRIGGER_RESUME:
+       case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+               if (dai->stream_active[SNDRV_PCM_STREAM_PLAYBACK]) {
+                       dev_info(dai->dev, "Enabling audio amp...\n");
+                       queue_delayed_work(
+                               system_power_efficient_wq,
+                               &voicehat->enable_sdmode_work,
+                               voicehat->sdmode_delay_jiffies);
+               }
+               break;
+       case SNDRV_PCM_TRIGGER_STOP:
+       case SNDRV_PCM_TRIGGER_SUSPEND:
+       case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+               if (dai->stream_active[SNDRV_PCM_STREAM_PLAYBACK]) {
+                       cancel_delayed_work(&voicehat->enable_sdmode_work);
+                       dev_info(dai->dev, "Disabling audio amp...\n");
+                       gpiod_set_value(voicehat->sdmode_gpio, 0);
+               }
+               break;
+       }
+       return 0;
+}
+
+static const struct snd_soc_dai_ops voicehat_dai_ops = {
+       .trigger = voicehat_daiops_trigger,
+};
+
+static struct snd_soc_dai_driver voicehat_dai = {
+       .name = "voicehat-hifi",
+       .capture = {
+               .stream_name = "HiFi Capture",
+               .channels_min = 2,
+               .channels_max = 2,
+               .rates = SNDRV_PCM_RATE_48000,
+               .formats = SNDRV_PCM_FMTBIT_S32_LE
+       },
+       .playback = {
+               .stream_name = "HiFi Playback",
+               .channels_min = 2,
+               .channels_max = 2,
+               .rates = SNDRV_PCM_RATE_48000,
+               .formats = SNDRV_PCM_FMTBIT_S32_LE
+       },
+       .ops = &voicehat_dai_ops,
+       .symmetric_rate = 1
+};
+
+#ifdef CONFIG_OF
+static const struct of_device_id voicehat_ids[] = {
+               { .compatible = "google,voicehat", }, {}
+       };
+       MODULE_DEVICE_TABLE(of, voicehat_ids);
+#endif
+
+static int voicehat_platform_probe(struct platform_device *pdev)
+{
+       struct voicehat_priv *voicehat;
+       unsigned int sdmode_delay;
+       int ret;
+
+       voicehat = devm_kzalloc(&pdev->dev, sizeof(*voicehat), GFP_KERNEL);
+       if (!voicehat)
+               return -ENOMEM;
+
+       ret = device_property_read_u32(&pdev->dev, "voicehat_sdmode_delay",
+                                      &sdmode_delay);
+
+       if (ret) {
+               sdmode_delay = SDMODE_DELAY_MS;
+               dev_info(&pdev->dev,
+                        "property 'voicehat_sdmode_delay' not found default 5 mS");
+       } else {
+               dev_info(&pdev->dev, "property 'voicehat_sdmode_delay' found delay= %d mS",
+                        sdmode_delay);
+       }
+       voicehat->sdmode_delay_jiffies = msecs_to_jiffies(sdmode_delay);
+
+       dev_set_drvdata(&pdev->dev, voicehat);
+
+       return snd_soc_register_component(&pdev->dev,
+                                         &voicehat_component_driver,
+                                         &voicehat_dai,
+                                         1);
+}
+
+static int voicehat_platform_remove(struct platform_device *pdev)
+{
+       snd_soc_unregister_component(&pdev->dev);
+       return 0;
+}
+
+static struct platform_driver voicehat_driver = {
+       .driver = {
+               .name = "voicehat-codec",
+               .of_match_table = of_match_ptr(voicehat_ids),
+       },
+       .probe = voicehat_platform_probe,
+       .remove = voicehat_platform_remove,
+};
+
+module_platform_driver(voicehat_driver);
+
+MODULE_DESCRIPTION("Google voiceHAT Codec driver");
+MODULE_AUTHOR("Peter Malkin <petermalkin@google.com>");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/hifiberry_dacplus.c
@@ -0,0 +1,527 @@
+/*
+ * ASoC Driver for HiFiBerry DAC+ / DAC Pro / AMP100
+ *
+ * Author:     Daniel Matuschek, Stuart MacLean <stuart@hifiberry.com>
+ *             Copyright 2014-2015
+ *             based on code by Florian Meier <florian.meier@koalo.de>
+ *             Headphone/AMP100 Joerg Schambacher <joerg@hifiberry.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/gpio/consumer.h>
+#include <../drivers/gpio/gpiolib.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include "../codecs/pcm512x.h"
+
+#define HIFIBERRY_DACPRO_NOCLOCK 0
+#define HIFIBERRY_DACPRO_CLK44EN 1
+#define HIFIBERRY_DACPRO_CLK48EN 2
+
+struct pcm512x_priv {
+       struct regmap *regmap;
+       struct clk *sclk;
+};
+
+/* Clock rate of CLK44EN attached to GPIO6 pin */
+#define CLK_44EN_RATE 22579200UL
+/* Clock rate of CLK48EN attached to GPIO3 pin */
+#define CLK_48EN_RATE 24576000UL
+
+static bool slave;
+static bool snd_rpi_hifiberry_is_dacpro;
+static bool digital_gain_0db_limit = true;
+static bool leds_off;
+static bool auto_mute;
+static int mute_ext_ctl;
+static int mute_ext;
+static struct gpio_desc *snd_mute_gpio;
+static struct gpio_desc *snd_reset_gpio;
+static struct snd_soc_card snd_rpi_hifiberry_dacplus;
+
+static int snd_rpi_hifiberry_dacplus_mute_set(int mute)
+{
+       gpiod_set_value_cansleep(snd_mute_gpio, mute);
+       return 1;
+}
+
+static int snd_rpi_hifiberry_dacplus_mute_get(struct snd_kcontrol *kcontrol,
+                               struct snd_ctl_elem_value *ucontrol)
+{
+       ucontrol->value.integer.value[0] = mute_ext;
+
+       return 0;
+}
+
+static int snd_rpi_hifiberry_dacplus_mute_put(struct snd_kcontrol *kcontrol,
+                               struct snd_ctl_elem_value *ucontrol)
+{
+       if (mute_ext == ucontrol->value.integer.value[0])
+               return 0;
+
+       mute_ext = ucontrol->value.integer.value[0];
+
+       return snd_rpi_hifiberry_dacplus_mute_set(mute_ext);
+}
+
+static const char * const mute_text[] = {"Play", "Mute"};
+static const struct soc_enum hb_dacplus_opt_mute_enum =
+       SOC_ENUM_SINGLE_EXT(2, mute_text);
+
+static const struct snd_kcontrol_new hb_dacplus_opt_mute_controls[] = {
+       SOC_ENUM_EXT("Mute(ext)", hb_dacplus_opt_mute_enum,
+                             snd_rpi_hifiberry_dacplus_mute_get,
+                             snd_rpi_hifiberry_dacplus_mute_put),
+};
+
+static void snd_rpi_hifiberry_dacplus_select_clk(struct snd_soc_component *component,
+       int clk_id)
+{
+       switch (clk_id) {
+       case HIFIBERRY_DACPRO_NOCLOCK:
+               snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x00);
+               break;
+       case HIFIBERRY_DACPRO_CLK44EN:
+               snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x20);
+               break;
+       case HIFIBERRY_DACPRO_CLK48EN:
+               snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x04);
+               break;
+       }
+       usleep_range(3000, 4000);
+}
+
+static void snd_rpi_hifiberry_dacplus_clk_gpio(struct snd_soc_component *component)
+{
+       snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x24, 0x24);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02);
+}
+
+static bool snd_rpi_hifiberry_dacplus_is_sclk(struct snd_soc_component *component)
+{
+       unsigned int sck;
+
+       sck = snd_soc_component_read(component, PCM512x_RATE_DET_4);
+       return (!(sck & 0x40));
+}
+
+static bool snd_rpi_hifiberry_dacplus_is_pro_card(struct snd_soc_component *component)
+{
+       bool isClk44EN, isClk48En, isNoClk;
+
+       snd_rpi_hifiberry_dacplus_clk_gpio(component);
+
+       snd_rpi_hifiberry_dacplus_select_clk(component, HIFIBERRY_DACPRO_CLK44EN);
+       isClk44EN = snd_rpi_hifiberry_dacplus_is_sclk(component);
+
+       snd_rpi_hifiberry_dacplus_select_clk(component, HIFIBERRY_DACPRO_NOCLOCK);
+       isNoClk = snd_rpi_hifiberry_dacplus_is_sclk(component);
+
+       snd_rpi_hifiberry_dacplus_select_clk(component, HIFIBERRY_DACPRO_CLK48EN);
+       isClk48En = snd_rpi_hifiberry_dacplus_is_sclk(component);
+
+       return (isClk44EN && isClk48En && !isNoClk);
+}
+
+static int snd_rpi_hifiberry_dacplus_clk_for_rate(int sample_rate)
+{
+       int type;
+
+       switch (sample_rate) {
+       case 11025:
+       case 22050:
+       case 44100:
+       case 88200:
+       case 176400:
+       case 352800:
+               type = HIFIBERRY_DACPRO_CLK44EN;
+               break;
+       default:
+               type = HIFIBERRY_DACPRO_CLK48EN;
+               break;
+       }
+       return type;
+}
+
+static void snd_rpi_hifiberry_dacplus_set_sclk(struct snd_soc_component *component,
+       int sample_rate)
+{
+       struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
+
+       if (!IS_ERR(pcm512x->sclk)) {
+               int ctype;
+
+               ctype = snd_rpi_hifiberry_dacplus_clk_for_rate(sample_rate);
+               clk_set_rate(pcm512x->sclk, (ctype == HIFIBERRY_DACPRO_CLK44EN)
+                       ? CLK_44EN_RATE : CLK_48EN_RATE);
+               snd_rpi_hifiberry_dacplus_select_clk(component, ctype);
+       }
+}
+
+static int snd_rpi_hifiberry_dacplus_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       struct pcm512x_priv *priv;
+       struct snd_soc_card *card = &snd_rpi_hifiberry_dacplus;
+
+       if (slave)
+               snd_rpi_hifiberry_is_dacpro = false;
+       else
+               snd_rpi_hifiberry_is_dacpro =
+                               snd_rpi_hifiberry_dacplus_is_pro_card(component);
+
+       if (snd_rpi_hifiberry_is_dacpro) {
+               struct snd_soc_dai_link *dai = rtd->dai_link;
+
+               dai->name = "HiFiBerry DAC+ Pro";
+               dai->stream_name = "HiFiBerry DAC+ Pro HiFi";
+               dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+                       | SND_SOC_DAIFMT_CBM_CFM;
+
+               snd_soc_component_update_bits(component, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11);
+               snd_soc_component_update_bits(component, PCM512x_MASTER_MODE, 0x03, 0x03);
+               snd_soc_component_update_bits(component, PCM512x_MASTER_CLKDIV_2, 0x7f, 63);
+       } else {
+               priv = snd_soc_component_get_drvdata(component);
+               priv->sclk = ERR_PTR(-ENOENT);
+       }
+
+       snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
+       if (leds_off)
+               snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
+       else
+               snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
+
+       if (digital_gain_0db_limit) {
+               int ret;
+               struct snd_soc_card *card = rtd->card;
+
+               ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
+               if (ret < 0)
+                       dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
+       }
+       if (snd_reset_gpio) {
+               gpiod_set_value_cansleep(snd_reset_gpio, 0);
+               msleep(1);
+               gpiod_set_value_cansleep(snd_reset_gpio, 1);
+               msleep(1);
+               gpiod_set_value_cansleep(snd_reset_gpio, 0);
+       }
+
+       if (mute_ext_ctl)
+               snd_soc_add_card_controls(card, hb_dacplus_opt_mute_controls,
+                               ARRAY_SIZE(hb_dacplus_opt_mute_controls));
+
+       if (snd_mute_gpio)
+               gpiod_set_value_cansleep(snd_mute_gpio, mute_ext);
+
+       return 0;
+}
+
+static int snd_rpi_hifiberry_dacplus_update_rate_den(
+       struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
+       struct snd_ratnum *rats_no_pll;
+       unsigned int num = 0, den = 0;
+       int err;
+
+       rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL);
+       if (!rats_no_pll)
+               return -ENOMEM;
+
+       rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64;
+       rats_no_pll->den_min = 1;
+       rats_no_pll->den_max = 128;
+       rats_no_pll->den_step = 1;
+
+       err = snd_interval_ratnum(hw_param_interval(params,
+               SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den);
+       if (err >= 0 && den) {
+               params->rate_num = num;
+               params->rate_den = den;
+       }
+
+       devm_kfree(rtd->dev, rats_no_pll);
+       return 0;
+}
+
+static int snd_rpi_hifiberry_dacplus_hw_params(
+       struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
+{
+       int ret = 0;
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       int channels = params_channels(params);
+       int width = 32;
+
+       if (snd_rpi_hifiberry_is_dacpro) {
+               struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+               width = snd_pcm_format_physical_width(params_format(params));
+
+               snd_rpi_hifiberry_dacplus_set_sclk(component,
+                       params_rate(params));
+
+               ret = snd_rpi_hifiberry_dacplus_update_rate_den(
+                       substream, params);
+       }
+
+       ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), channels * width);
+       if (ret)
+               return ret;
+       ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_codec(rtd, 0), channels * width);
+       return ret;
+}
+
+static int snd_rpi_hifiberry_dacplus_startup(
+       struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+       if (auto_mute)
+               gpiod_set_value_cansleep(snd_mute_gpio, 0);
+       if (leds_off)
+               return 0;
+       snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
+       return 0;
+}
+
+static void snd_rpi_hifiberry_dacplus_shutdown(
+       struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+       snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
+       if (auto_mute)
+               gpiod_set_value_cansleep(snd_mute_gpio, 1);
+}
+
+/* machine stream operations */
+static struct snd_soc_ops snd_rpi_hifiberry_dacplus_ops = {
+       .hw_params = snd_rpi_hifiberry_dacplus_hw_params,
+       .startup = snd_rpi_hifiberry_dacplus_startup,
+       .shutdown = snd_rpi_hifiberry_dacplus_shutdown,
+};
+
+SND_SOC_DAILINK_DEFS(rpi_hifiberry_dacplus,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link snd_rpi_hifiberry_dacplus_dai[] = {
+{
+       .name           = "HiFiBerry DAC+",
+       .stream_name    = "HiFiBerry DAC+ HiFi",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                               SND_SOC_DAIFMT_CBS_CFS,
+       .ops            = &snd_rpi_hifiberry_dacplus_ops,
+       .init           = snd_rpi_hifiberry_dacplus_init,
+       SND_SOC_DAILINK_REG(rpi_hifiberry_dacplus),
+},
+};
+
+/* aux device for optional headphone amp */
+static struct snd_soc_aux_dev hifiberry_dacplus_aux_devs[] = {
+       {
+               .dlc = {
+                       .name = "tpa6130a2.1-0060",
+               },
+       },
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_rpi_hifiberry_dacplus = {
+       .name         = "snd_rpi_hifiberry_dacplus",
+       .driver_name  = "HifiberryDacp",
+       .owner        = THIS_MODULE,
+       .dai_link     = snd_rpi_hifiberry_dacplus_dai,
+       .num_links    = ARRAY_SIZE(snd_rpi_hifiberry_dacplus_dai),
+};
+
+static int hb_hp_detect(void)
+{
+       struct i2c_adapter *adap = i2c_get_adapter(1);
+       int ret;
+       struct i2c_client tpa_i2c_client = {
+               .addr = 0x60,
+               .adapter = adap,
+       };
+
+       if (!adap)
+               return -EPROBE_DEFER;   /* I2C module not yet available */
+
+       ret = i2c_smbus_read_byte(&tpa_i2c_client) >= 0;
+       i2c_put_adapter(adap);
+       return ret;
+};
+
+static struct property tpa_enable_prop = {
+              .name = "status",
+              .length = 4 + 1, /* length 'okay' + 1 */
+              .value = "okay",
+       };
+
+static int snd_rpi_hifiberry_dacplus_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+       struct snd_soc_card *card = &snd_rpi_hifiberry_dacplus;
+       int len;
+       struct device_node *tpa_node;
+       struct property *tpa_prop;
+       struct of_changeset ocs;
+       struct property *pp;
+       int tmp;
+
+       /* probe for head phone amp */
+       ret = hb_hp_detect();
+       if (ret < 0)
+               return ret;
+       if (ret) {
+               card->aux_dev = hifiberry_dacplus_aux_devs;
+               card->num_aux_devs =
+                               ARRAY_SIZE(hifiberry_dacplus_aux_devs);
+               tpa_node = of_find_compatible_node(NULL, NULL, "ti,tpa6130a2");
+               tpa_prop = of_find_property(tpa_node, "status", &len);
+
+               if (strcmp((char *)tpa_prop->value, "okay")) {
+                       /* and activate headphone using change_sets */
+                       dev_info(&pdev->dev, "activating headphone amplifier");
+                       of_changeset_init(&ocs);
+                       ret = of_changeset_update_property(&ocs, tpa_node,
+                                                       &tpa_enable_prop);
+                       if (ret) {
+                               dev_err(&pdev->dev,
+                               "cannot activate headphone amplifier\n");
+                               return -ENODEV;
+                       }
+                       ret = of_changeset_apply(&ocs);
+                       if (ret) {
+                               dev_err(&pdev->dev,
+                               "cannot activate headphone amplifier\n");
+                               return -ENODEV;
+                       }
+               }
+       }
+
+       snd_rpi_hifiberry_dacplus.dev = &pdev->dev;
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_dai_link *dai;
+
+               dai = &snd_rpi_hifiberry_dacplus_dai[0];
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                       "i2s-controller", 0);
+
+               if (i2s_node) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_node;
+               }
+
+               digital_gain_0db_limit = !of_property_read_bool(
+                       pdev->dev.of_node, "hifiberry,24db_digital_gain");
+               slave = of_property_read_bool(pdev->dev.of_node,
+                                               "hifiberry-dacplus,slave");
+               leds_off = of_property_read_bool(pdev->dev.of_node,
+                                               "hifiberry-dacplus,leds_off");
+               auto_mute = of_property_read_bool(pdev->dev.of_node,
+                                               "hifiberry-dacplus,auto_mute");
+
+               /*
+                * check for HW MUTE as defined in DT-overlay
+                * active high, therefore default to HIGH to MUTE
+                */
+               snd_mute_gpio = devm_gpiod_get_optional(&pdev->dev,
+                                                "mute", GPIOD_OUT_HIGH);
+               if (IS_ERR(snd_mute_gpio)) {
+                       dev_err(&pdev->dev, "Can't allocate GPIO (HW-MUTE)");
+                       return PTR_ERR(snd_mute_gpio);
+               }
+
+               /* add ALSA control if requested in DT-overlay (AMP100) */
+               pp = of_find_property(pdev->dev.of_node,
+                               "hifiberry-dacplus,mute_ext_ctl", &tmp);
+               if (pp) {
+                       if (!of_property_read_u32(pdev->dev.of_node,
+                               "hifiberry-dacplus,mute_ext_ctl", &mute_ext)) {
+                               /* ALSA control will be used */
+                               mute_ext_ctl = 1;
+                       }
+               }
+
+               /* check for HW RESET (AMP100) */
+               snd_reset_gpio = devm_gpiod_get_optional(&pdev->dev,
+                                               "reset", GPIOD_OUT_HIGH);
+               if (IS_ERR(snd_reset_gpio)) {
+                       dev_err(&pdev->dev, "Can't allocate GPIO (HW-RESET)");
+                       return PTR_ERR(snd_reset_gpio);
+               }
+
+       }
+
+       ret = devm_snd_soc_register_card(&pdev->dev,
+                       &snd_rpi_hifiberry_dacplus);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev,
+                       "snd_soc_register_card() failed: %d\n", ret);
+       if (!ret) {
+               if (snd_mute_gpio)
+                       dev_info(&pdev->dev, "GPIO%i for HW-MUTE selected",
+                                       gpio_chip_hwgpio(snd_mute_gpio));
+               if (snd_reset_gpio)
+                       dev_info(&pdev->dev, "GPIO%i for HW-RESET selected",
+                                       gpio_chip_hwgpio(snd_reset_gpio));
+       }
+       return ret;
+}
+
+static const struct of_device_id snd_rpi_hifiberry_dacplus_of_match[] = {
+       { .compatible = "hifiberry,hifiberry-dacplus", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dacplus_of_match);
+
+static struct platform_driver snd_rpi_hifiberry_dacplus_driver = {
+       .driver = {
+               .name   = "snd-rpi-hifiberry-dacplus",
+               .owner  = THIS_MODULE,
+               .of_match_table = snd_rpi_hifiberry_dacplus_of_match,
+       },
+       .probe          = snd_rpi_hifiberry_dacplus_probe,
+};
+
+module_platform_driver(snd_rpi_hifiberry_dacplus_driver);
+
+MODULE_AUTHOR("Daniel Matuschek <daniel@hifiberry.com>");
+MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/hifiberry_dacplusadc.c
@@ -0,0 +1,398 @@
+/*
+ * ASoC Driver for HiFiBerry DAC+ / DAC Pro with ADC
+ *
+ * Author:     Daniel Matuschek, Stuart MacLean <stuart@hifiberry.com>
+ *             Copyright 2014-2015
+ *             based on code by Florian Meier <florian.meier@koalo.de>
+ *             ADC added by Joerg Schambacher <joscha@schambacher.com>
+ *             Copyright 2018
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include "../codecs/pcm512x.h"
+
+#define HIFIBERRY_DACPRO_NOCLOCK 0
+#define HIFIBERRY_DACPRO_CLK44EN 1
+#define HIFIBERRY_DACPRO_CLK48EN 2
+
+struct platform_device *dmic_codec_dev;
+
+struct pcm512x_priv {
+       struct regmap *regmap;
+       struct clk *sclk;
+};
+
+/* Clock rate of CLK44EN attached to GPIO6 pin */
+#define CLK_44EN_RATE 22579200UL
+/* Clock rate of CLK48EN attached to GPIO3 pin */
+#define CLK_48EN_RATE 24576000UL
+
+static bool slave;
+static bool snd_rpi_hifiberry_is_dacpro;
+static bool digital_gain_0db_limit = true;
+static bool leds_off;
+
+static void snd_rpi_hifiberry_dacplusadc_select_clk(struct snd_soc_component *component,
+       int clk_id)
+{
+       switch (clk_id) {
+       case HIFIBERRY_DACPRO_NOCLOCK:
+               snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x00);
+               break;
+       case HIFIBERRY_DACPRO_CLK44EN:
+               snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x20);
+               break;
+       case HIFIBERRY_DACPRO_CLK48EN:
+               snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x04);
+               break;
+       }
+}
+
+static void snd_rpi_hifiberry_dacplusadc_clk_gpio(struct snd_soc_component *component)
+{
+       snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x24, 0x24);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02);
+}
+
+static bool snd_rpi_hifiberry_dacplusadc_is_sclk(struct snd_soc_component *component)
+{
+       unsigned int sck;
+
+       sck = snd_soc_component_read(component, PCM512x_RATE_DET_4);
+       return (!(sck & 0x40));
+}
+
+static bool snd_rpi_hifiberry_dacplusadc_is_sclk_sleep(
+       struct snd_soc_component *component)
+{
+       msleep(2);
+       return snd_rpi_hifiberry_dacplusadc_is_sclk(component);
+}
+
+static bool snd_rpi_hifiberry_dacplusadc_is_pro_card(struct snd_soc_component *component)
+{
+       bool isClk44EN, isClk48En, isNoClk;
+
+       snd_rpi_hifiberry_dacplusadc_clk_gpio(component);
+
+       snd_rpi_hifiberry_dacplusadc_select_clk(component, HIFIBERRY_DACPRO_CLK44EN);
+       isClk44EN = snd_rpi_hifiberry_dacplusadc_is_sclk_sleep(component);
+
+       snd_rpi_hifiberry_dacplusadc_select_clk(component, HIFIBERRY_DACPRO_NOCLOCK);
+       isNoClk = snd_rpi_hifiberry_dacplusadc_is_sclk_sleep(component);
+
+       snd_rpi_hifiberry_dacplusadc_select_clk(component, HIFIBERRY_DACPRO_CLK48EN);
+       isClk48En = snd_rpi_hifiberry_dacplusadc_is_sclk_sleep(component);
+
+       return (isClk44EN && isClk48En && !isNoClk);
+}
+
+static int snd_rpi_hifiberry_dacplusadc_clk_for_rate(int sample_rate)
+{
+       int type;
+
+       switch (sample_rate) {
+       case 11025:
+       case 22050:
+       case 44100:
+       case 88200:
+       case 176400:
+       case 352800:
+               type = HIFIBERRY_DACPRO_CLK44EN;
+               break;
+       default:
+               type = HIFIBERRY_DACPRO_CLK48EN;
+               break;
+       }
+       return type;
+}
+
+static void snd_rpi_hifiberry_dacplusadc_set_sclk(struct snd_soc_component *component,
+       int sample_rate)
+{
+       struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
+
+       if (!IS_ERR(pcm512x->sclk)) {
+               int ctype;
+
+               ctype = snd_rpi_hifiberry_dacplusadc_clk_for_rate(sample_rate);
+               clk_set_rate(pcm512x->sclk, (ctype == HIFIBERRY_DACPRO_CLK44EN)
+                       ? CLK_44EN_RATE : CLK_48EN_RATE);
+               snd_rpi_hifiberry_dacplusadc_select_clk(component, ctype);
+       }
+}
+
+static int snd_rpi_hifiberry_dacplusadc_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       struct pcm512x_priv *priv;
+
+       if (slave)
+               snd_rpi_hifiberry_is_dacpro = false;
+       else
+               snd_rpi_hifiberry_is_dacpro =
+                               snd_rpi_hifiberry_dacplusadc_is_pro_card(component);
+
+       if (snd_rpi_hifiberry_is_dacpro) {
+               struct snd_soc_dai_link *dai = rtd->dai_link;
+
+               dai->name = "HiFiBerry ADCDAC+ Pro";
+               dai->stream_name = "HiFiBerry ADCDAC+ Pro HiFi";
+               dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+                       | SND_SOC_DAIFMT_CBM_CFM;
+
+               snd_soc_component_update_bits(component, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11);
+               snd_soc_component_update_bits(component, PCM512x_MASTER_MODE, 0x03, 0x03);
+               snd_soc_component_update_bits(component, PCM512x_MASTER_CLKDIV_2, 0x7f, 63);
+       } else {
+               priv = snd_soc_component_get_drvdata(component);
+               priv->sclk = ERR_PTR(-ENOENT);
+       }
+
+       snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
+       if (leds_off)
+               snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
+       else
+               snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
+
+       if (digital_gain_0db_limit) {
+               int ret;
+               struct snd_soc_card *card = rtd->card;
+
+               ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
+               if (ret < 0)
+                       dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
+       }
+
+       return 0;
+}
+
+static int snd_rpi_hifiberry_dacplusadc_update_rate_den(
+       struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
+       struct snd_ratnum *rats_no_pll;
+       unsigned int num = 0, den = 0;
+       int err;
+
+       rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL);
+       if (!rats_no_pll)
+               return -ENOMEM;
+
+       rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64;
+       rats_no_pll->den_min = 1;
+       rats_no_pll->den_max = 128;
+       rats_no_pll->den_step = 1;
+
+       err = snd_interval_ratnum(hw_param_interval(params,
+               SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den);
+       if (err >= 0 && den) {
+               params->rate_num = num;
+               params->rate_den = den;
+       }
+
+       devm_kfree(rtd->dev, rats_no_pll);
+       return 0;
+}
+
+static int snd_rpi_hifiberry_dacplusadc_hw_params(
+       struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
+{
+       int ret = 0;
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       int channels = params_channels(params);
+       int width = 32;
+
+       if (snd_rpi_hifiberry_is_dacpro) {
+               struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+               width = snd_pcm_format_physical_width(params_format(params));
+
+               snd_rpi_hifiberry_dacplusadc_set_sclk(component,
+                       params_rate(params));
+
+               ret = snd_rpi_hifiberry_dacplusadc_update_rate_den(
+                       substream, params);
+       }
+
+       ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), channels * width);
+       if (ret)
+               return ret;
+       ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_codec(rtd, 0), channels * width);
+       return ret;
+}
+
+static int hifiberry_dacplusadc_LED_cnt;
+
+static int snd_rpi_hifiberry_dacplusadc_startup(
+       struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+       if (leds_off)
+               return 0;
+       snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1,
+                                        0x08, 0x08);
+       hifiberry_dacplusadc_LED_cnt++;
+       return 0;
+}
+
+static void snd_rpi_hifiberry_dacplusadc_shutdown(
+       struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+       hifiberry_dacplusadc_LED_cnt--;
+       if (!hifiberry_dacplusadc_LED_cnt)
+               snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1,
+                                                0x08, 0x00);
+}
+
+/* machine stream operations */
+static struct snd_soc_ops snd_rpi_hifiberry_dacplusadc_ops = {
+       .hw_params = snd_rpi_hifiberry_dacplusadc_hw_params,
+       .startup = snd_rpi_hifiberry_dacplusadc_startup,
+       .shutdown = snd_rpi_hifiberry_dacplusadc_shutdown,
+};
+
+SND_SOC_DAILINK_DEFS(hifi,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi"),
+                          COMP_CODEC("dmic-codec", "dmic-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link snd_rpi_hifiberry_dacplusadc_dai[] = {
+{
+       .name           = "HiFiBerry DAC+ADC",
+       .stream_name    = "HiFiBerry DAC+ADC HiFi",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                               SND_SOC_DAIFMT_CBS_CFS,
+       .ops            = &snd_rpi_hifiberry_dacplusadc_ops,
+       .init           = snd_rpi_hifiberry_dacplusadc_init,
+       SND_SOC_DAILINK_REG(hifi),
+},
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_rpi_hifiberry_dacplusadc = {
+       .name         = "snd_rpi_hifiberry_dacplusadc",
+       .driver_name  = "HifiberryDacpAdc",
+       .owner        = THIS_MODULE,
+       .dai_link     = snd_rpi_hifiberry_dacplusadc_dai,
+       .num_links    = ARRAY_SIZE(snd_rpi_hifiberry_dacplusadc_dai),
+};
+
+
+static int snd_rpi_hifiberry_dacplusadc_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+
+       snd_rpi_hifiberry_dacplusadc.dev = &pdev->dev;
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_dai_link *dai;
+
+               dai = &snd_rpi_hifiberry_dacplusadc_dai[0];
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                       "i2s-controller", 0);
+               if (i2s_node) {
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->of_node = i2s_node;
+                       dai->cpus->dai_name = NULL;
+                       dai->platforms->name = NULL;
+               }
+       }
+       digital_gain_0db_limit = !of_property_read_bool(
+               pdev->dev.of_node, "hifiberry,24db_digital_gain");
+       slave = of_property_read_bool(pdev->dev.of_node,
+                                       "hifiberry-dacplusadc,slave");
+       leds_off = of_property_read_bool(pdev->dev.of_node,
+                                       "hifiberry-dacplusadc,leds_off");
+
+       ret = devm_snd_soc_register_card(&pdev->dev,
+                                                &snd_rpi_hifiberry_dacplusadc);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev,
+                       "snd_soc_register_card() failed: %d\n", ret);
+
+       return ret;
+}
+
+static const struct of_device_id snd_rpi_hifiberry_dacplusadc_of_match[] = {
+       { .compatible = "hifiberry,hifiberry-dacplusadc", },
+       {},
+};
+
+MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dacplusadc_of_match);
+
+static struct platform_driver snd_rpi_hifiberry_dacplusadc_driver = {
+       .driver = {
+               .name   = "snd-rpi-hifiberry-dacplusadc",
+               .owner  = THIS_MODULE,
+               .of_match_table = snd_rpi_hifiberry_dacplusadc_of_match,
+       },
+       .probe          = snd_rpi_hifiberry_dacplusadc_probe,
+};
+
+static int __init hifiberry_dacplusadc_init(void)
+{
+       int ret;
+
+       dmic_codec_dev = platform_device_register_simple("dmic-codec", -1, NULL,
+                                                        0);
+       if (IS_ERR(dmic_codec_dev)) {
+               pr_err("%s: dmic-codec device registration failed\n", __func__);
+               return PTR_ERR(dmic_codec_dev);
+       }
+
+       ret = platform_driver_register(&snd_rpi_hifiberry_dacplusadc_driver);
+       if (ret) {
+               pr_err("%s: platform driver registration failed\n", __func__);
+               platform_device_unregister(dmic_codec_dev);
+       }
+
+       return ret;
+}
+module_init(hifiberry_dacplusadc_init);
+
+static void __exit hifiberry_dacplusadc_exit(void)
+{
+       platform_driver_unregister(&snd_rpi_hifiberry_dacplusadc_driver);
+       platform_device_unregister(dmic_codec_dev);
+}
+module_exit(hifiberry_dacplusadc_exit);
+
+MODULE_AUTHOR("Joerg Schambacher <joscha@schambacher.com>");
+MODULE_AUTHOR("Daniel Matuschek <daniel@hifiberry.com>");
+MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+ADC");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/hifiberry_dacplusadcpro.c
@@ -0,0 +1,605 @@
+/*
+ * ASoC Driver for HiFiBerry DAC+ / DAC Pro with ADC PRO Version (SW control)
+ *
+ * Author:     Daniel Matuschek, Stuart MacLean <stuart@hifiberry.com>
+ *             Copyright 2014-2015
+ *             based on code by Florian Meier <florian.meier@koalo.de>
+ *             ADC, HP added by Joerg Schambacher <joerg@hifiberry.com>
+ *             Copyright 2018-21
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <sound/tlv.h>
+
+#include "../codecs/pcm512x.h"
+#include "../codecs/pcm186x.h"
+
+#define HIFIBERRY_DACPRO_NOCLOCK 0
+#define HIFIBERRY_DACPRO_CLK44EN 1
+#define HIFIBERRY_DACPRO_CLK48EN 2
+
+struct pcm512x_priv {
+       struct regmap *regmap;
+       struct clk *sclk;
+};
+
+/* Clock rate of CLK44EN attached to GPIO6 pin */
+#define CLK_44EN_RATE 22579200UL
+/* Clock rate of CLK48EN attached to GPIO3 pin */
+#define CLK_48EN_RATE 24576000UL
+
+static bool slave;
+static bool snd_rpi_hifiberry_is_dacpro;
+static bool digital_gain_0db_limit = true;
+static bool leds_off;
+
+static const unsigned int pcm186x_adc_input_channel_sel_value[] = {
+       0x00, 0x01, 0x02, 0x03, 0x10
+};
+
+static const char * const pcm186x_adcl_input_channel_sel_text[] = {
+       "No Select",
+       "VINL1[SE]",                                    /* Default for ADCL */
+       "VINL2[SE]",
+       "VINL2[SE] + VINL1[SE]",
+       "{VIN1P, VIN1M}[DIFF]"
+};
+
+static const char * const pcm186x_adcr_input_channel_sel_text[] = {
+       "No Select",
+       "VINR1[SE]",                                    /* Default for ADCR */
+       "VINR2[SE]",
+       "VINR2[SE] + VINR1[SE]",
+       "{VIN2P, VIN2M}[DIFF]"
+};
+
+static const struct soc_enum pcm186x_adc_input_channel_sel[] = {
+       SOC_VALUE_ENUM_SINGLE(PCM186X_ADC1_INPUT_SEL_L, 0,
+                             PCM186X_ADC_INPUT_SEL_MASK,
+                             ARRAY_SIZE(pcm186x_adcl_input_channel_sel_text),
+                             pcm186x_adcl_input_channel_sel_text,
+                             pcm186x_adc_input_channel_sel_value),
+       SOC_VALUE_ENUM_SINGLE(PCM186X_ADC1_INPUT_SEL_R, 0,
+                             PCM186X_ADC_INPUT_SEL_MASK,
+                             ARRAY_SIZE(pcm186x_adcr_input_channel_sel_text),
+                             pcm186x_adcr_input_channel_sel_text,
+                             pcm186x_adc_input_channel_sel_value),
+};
+
+static const unsigned int pcm186x_mic_bias_sel_value[] = {
+       0x00, 0x01, 0x11
+};
+
+static const char * const pcm186x_mic_bias_sel_text[] = {
+       "Mic Bias off",
+       "Mic Bias on",
+       "Mic Bias with Bypass Resistor"
+};
+
+static const struct soc_enum pcm186x_mic_bias_sel[] = {
+       SOC_VALUE_ENUM_SINGLE(PCM186X_MIC_BIAS_CTRL, 0,
+                             GENMASK(4, 0),
+                             ARRAY_SIZE(pcm186x_mic_bias_sel_text),
+                             pcm186x_mic_bias_sel_text,
+                             pcm186x_mic_bias_sel_value),
+};
+
+static const unsigned int pcm186x_gain_sel_value[] = {
+       0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
+       0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+       0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
+       0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+       0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+       0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+       0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+       0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
+       0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
+       0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
+       0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
+       0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
+       0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
+       0x50
+};
+
+static const char * const pcm186x_gain_sel_text[] = {
+       "-12.0dB", "-11.5dB", "-11.0dB", "-10.5dB", "-10.0dB", "-9.5dB",
+       "-9.0dB", "-8.5dB", "-8.0dB", "-7.5dB", "-7.0dB", "-6.5dB",
+       "-6.0dB", "-5.5dB", "-5.0dB", "-4.5dB", "-4.0dB", "-3.5dB",
+       "-3.0dB", "-2.5dB", "-2.0dB", "-1.5dB", "-1.0dB", "-0.5dB",
+       "0.0dB", "0.5dB", "1.0dB", "1.5dB", "2.0dB", "2.5dB",
+       "3.0dB", "3.5dB", "4.0dB", "4.5dB", "5.0dB", "5.5dB",
+       "6.0dB", "6.5dB", "7.0dB", "7.5dB", "8.0dB", "8.5dB",
+       "9.0dB", "9.5dB", "10.0dB", "10.5dB", "11.0dB", "11.5dB",
+       "12.0dB", "12.5dB", "13.0dB", "13.5dB", "14.0dB", "14.5dB",
+       "15.0dB", "15.5dB", "16.0dB", "16.5dB", "17.0dB", "17.5dB",
+       "18.0dB", "18.5dB", "19.0dB", "19.5dB", "20.0dB", "20.5dB",
+       "21.0dB", "21.5dB", "22.0dB", "22.5dB", "23.0dB", "23.5dB",
+       "24.0dB", "24.5dB", "25.0dB", "25.5dB", "26.0dB", "26.5dB",
+       "27.0dB", "27.5dB", "28.0dB", "28.5dB", "29.0dB", "29.5dB",
+       "30.0dB", "30.5dB", "31.0dB", "31.5dB", "32.0dB", "32.5dB",
+       "33.0dB", "33.5dB", "34.0dB", "34.5dB", "35.0dB", "35.5dB",
+       "36.0dB", "36.5dB", "37.0dB", "37.5dB", "38.0dB", "38.5dB",
+       "39.0dB", "39.5dB", "40.0dB"};
+
+static const struct soc_enum pcm186x_gain_sel[] = {
+       SOC_VALUE_ENUM_SINGLE(PCM186X_PGA_VAL_CH1_L, 0,
+                             0xff,
+                             ARRAY_SIZE(pcm186x_gain_sel_text),
+                             pcm186x_gain_sel_text,
+                             pcm186x_gain_sel_value),
+       SOC_VALUE_ENUM_SINGLE(PCM186X_PGA_VAL_CH1_R, 0,
+                             0xff,
+                             ARRAY_SIZE(pcm186x_gain_sel_text),
+                             pcm186x_gain_sel_text,
+                             pcm186x_gain_sel_value),
+};
+
+static const struct snd_kcontrol_new pcm1863_snd_controls_card[] = {
+       SOC_ENUM("ADC Left Input", pcm186x_adc_input_channel_sel[0]),
+       SOC_ENUM("ADC Right Input", pcm186x_adc_input_channel_sel[1]),
+       SOC_ENUM("ADC Mic Bias", pcm186x_mic_bias_sel),
+       SOC_ENUM("PGA Gain Left", pcm186x_gain_sel[0]),
+       SOC_ENUM("PGA Gain Right", pcm186x_gain_sel[1]),
+};
+
+static int pcm1863_add_controls(struct snd_soc_component *component)
+{
+       snd_soc_add_component_controls(component,
+                       pcm1863_snd_controls_card,
+                       ARRAY_SIZE(pcm1863_snd_controls_card));
+       return 0;
+}
+
+static void snd_rpi_hifiberry_dacplusadcpro_select_clk(
+                                       struct snd_soc_component *component, int clk_id)
+{
+       switch (clk_id) {
+       case HIFIBERRY_DACPRO_NOCLOCK:
+               snd_soc_component_update_bits(component,
+                               PCM512x_GPIO_CONTROL_1, 0x24, 0x00);
+               break;
+       case HIFIBERRY_DACPRO_CLK44EN:
+               snd_soc_component_update_bits(component,
+                               PCM512x_GPIO_CONTROL_1, 0x24, 0x20);
+               break;
+       case HIFIBERRY_DACPRO_CLK48EN:
+               snd_soc_component_update_bits(component,
+                               PCM512x_GPIO_CONTROL_1, 0x24, 0x04);
+               break;
+       }
+       usleep_range(3000, 4000);
+}
+
+static void snd_rpi_hifiberry_dacplusadcpro_clk_gpio(struct snd_soc_component *component)
+{
+       snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x24, 0x24);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02);
+}
+
+static bool snd_rpi_hifiberry_dacplusadcpro_is_sclk(struct snd_soc_component *component)
+{
+       unsigned int sck;
+
+       sck = snd_soc_component_read(component, PCM512x_RATE_DET_4);
+       return (!(sck & 0x40));
+}
+
+static bool snd_rpi_hifiberry_dacplusadcpro_is_pro_card(struct snd_soc_component *component)
+{
+       bool isClk44EN, isClk48En, isNoClk;
+
+       snd_rpi_hifiberry_dacplusadcpro_clk_gpio(component);
+
+       snd_rpi_hifiberry_dacplusadcpro_select_clk(component, HIFIBERRY_DACPRO_CLK44EN);
+       isClk44EN = snd_rpi_hifiberry_dacplusadcpro_is_sclk(component);
+
+       snd_rpi_hifiberry_dacplusadcpro_select_clk(component, HIFIBERRY_DACPRO_NOCLOCK);
+       isNoClk = snd_rpi_hifiberry_dacplusadcpro_is_sclk(component);
+
+       snd_rpi_hifiberry_dacplusadcpro_select_clk(component, HIFIBERRY_DACPRO_CLK48EN);
+       isClk48En = snd_rpi_hifiberry_dacplusadcpro_is_sclk(component);
+
+       return (isClk44EN && isClk48En && !isNoClk);
+}
+
+static int snd_rpi_hifiberry_dacplusadcpro_clk_for_rate(int sample_rate)
+{
+       int type;
+
+       switch (sample_rate) {
+       case 11025:
+       case 22050:
+       case 44100:
+       case 88200:
+       case 176400:
+       case 352800:
+               type = HIFIBERRY_DACPRO_CLK44EN;
+               break;
+       default:
+               type = HIFIBERRY_DACPRO_CLK48EN;
+               break;
+       }
+       return type;
+}
+
+static void snd_rpi_hifiberry_dacplusadcpro_set_sclk(struct snd_soc_component *component,
+       int sample_rate)
+{
+       struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
+
+       if (!IS_ERR(pcm512x->sclk)) {
+               int ctype;
+
+               ctype = snd_rpi_hifiberry_dacplusadcpro_clk_for_rate(sample_rate);
+               clk_set_rate(pcm512x->sclk, (ctype == HIFIBERRY_DACPRO_CLK44EN)
+                       ? CLK_44EN_RATE : CLK_48EN_RATE);
+               snd_rpi_hifiberry_dacplusadcpro_select_clk(component, ctype);
+       }
+}
+
+static int snd_rpi_hifiberry_dacplusadcpro_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 0)->component;
+       struct snd_soc_component *adc = asoc_rtd_to_codec(rtd, 1)->component;
+       struct snd_soc_dai_driver *adc_driver = asoc_rtd_to_codec(rtd, 1)->driver;
+       struct pcm512x_priv *priv;
+       int ret;
+
+       if (slave)
+               snd_rpi_hifiberry_is_dacpro = false;
+       else
+               snd_rpi_hifiberry_is_dacpro =
+                               snd_rpi_hifiberry_dacplusadcpro_is_pro_card(dac);
+
+       if (snd_rpi_hifiberry_is_dacpro) {
+               struct snd_soc_dai_link *dai = rtd->dai_link;
+
+               dai->name = "HiFiBerry DAC+ADC Pro";
+               dai->stream_name = "HiFiBerry DAC+ADC Pro HiFi";
+               dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+                       | SND_SOC_DAIFMT_CBM_CFM;
+
+               // set DAC DAI configuration
+               ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0),
+                               SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+                       | SND_SOC_DAIFMT_CBM_CFM);
+               if (ret < 0)
+                       return ret;
+
+               // set ADC DAI configuration
+               ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 1),
+                               SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+                       | SND_SOC_DAIFMT_CBS_CFS);
+               if (ret < 0)
+                       return ret;
+
+               // set CPU DAI configuration
+               ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0),
+                       SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
+               if (ret < 0)
+                       return ret;
+
+               snd_soc_component_update_bits(dac, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11);
+               snd_soc_component_update_bits(dac, PCM512x_MASTER_MODE, 0x03, 0x03);
+               snd_soc_component_update_bits(dac, PCM512x_MASTER_CLKDIV_2, 0x7f, 63);
+       } else {
+               priv = snd_soc_component_get_drvdata(dac);
+               priv->sclk = ERR_PTR(-ENOENT);
+       }
+
+       /* disable 24bit mode as long as I2S module does not have sign extension fixed */
+       adc_driver->capture.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE;
+
+       snd_soc_component_update_bits(dac, PCM512x_GPIO_EN, 0x08, 0x08);
+       snd_soc_component_update_bits(dac, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
+       if (leds_off)
+               snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
+       else
+               snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
+
+       ret = pcm1863_add_controls(adc);
+       if (ret < 0)
+               dev_warn(rtd->dev, "Failed to add pcm1863 controls: %d\n",
+               ret);
+
+       /* set GPIO2 to output, GPIO3 input */
+       snd_soc_component_write(adc, PCM186X_GPIO3_2_CTRL, 0x00);
+       snd_soc_component_write(adc, PCM186X_GPIO3_2_DIR_CTRL, 0x04);
+       if (leds_off)
+               snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x00);
+       else
+               snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x40);
+
+       if (digital_gain_0db_limit) {
+               int ret;
+               struct snd_soc_card *card = rtd->card;
+
+               ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
+               if (ret < 0)
+                       dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
+       }
+
+       return 0;
+}
+
+static int snd_rpi_hifiberry_dacplusadcpro_update_rate_den(
+       struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; /* only use DAC */
+       struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
+       struct snd_ratnum *rats_no_pll;
+       unsigned int num = 0, den = 0;
+       int err;
+
+       rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL);
+       if (!rats_no_pll)
+               return -ENOMEM;
+
+       rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64;
+       rats_no_pll->den_min = 1;
+       rats_no_pll->den_max = 128;
+       rats_no_pll->den_step = 1;
+
+       err = snd_interval_ratnum(hw_param_interval(params,
+               SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den);
+       if (err >= 0 && den) {
+               params->rate_num = num;
+               params->rate_den = den;
+       }
+
+       devm_kfree(rtd->dev, rats_no_pll);
+       return 0;
+}
+
+static int snd_rpi_hifiberry_dacplusadcpro_hw_params(
+       struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
+{
+       int ret = 0;
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       int channels = params_channels(params);
+       int width = 32;
+       struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 0)->component;
+       struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
+       struct snd_soc_dai_driver *drv = dai->driver;
+       const struct snd_soc_dai_ops *ops = drv->ops;
+
+       if (snd_rpi_hifiberry_is_dacpro) {
+               width = snd_pcm_format_physical_width(params_format(params));
+
+               snd_rpi_hifiberry_dacplusadcpro_set_sclk(dac,
+                       params_rate(params));
+
+               ret = snd_rpi_hifiberry_dacplusadcpro_update_rate_den(
+                       substream, params);
+               if (ret)
+                       return ret;
+       }
+
+       ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), channels * width);
+       if (ret)
+               return ret;
+       ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_codec(rtd, 0), channels * width);
+       if (ret)
+               return ret;
+       if (snd_rpi_hifiberry_is_dacpro && ops->hw_params)
+               ret = ops->hw_params(substream, params, dai);
+       return ret;
+}
+
+static int snd_rpi_hifiberry_dacplusadcpro_startup(
+       struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 0)->component;
+       struct snd_soc_component *adc = asoc_rtd_to_codec(rtd, 1)->component;
+
+       if (leds_off)
+               return 0;
+       /* switch on respective LED */
+       if (!substream->stream)
+               snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
+       else
+               snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x40);
+       return 0;
+}
+
+static void snd_rpi_hifiberry_dacplusadcpro_shutdown(
+       struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 0)->component;
+       struct snd_soc_component *adc = asoc_rtd_to_codec(rtd, 1)->component;
+
+       /* switch off respective LED */
+       if (!substream->stream)
+               snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
+       else
+               snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x00);
+}
+
+
+/* machine stream operations */
+static struct snd_soc_ops snd_rpi_hifiberry_dacplusadcpro_ops = {
+       .hw_params = snd_rpi_hifiberry_dacplusadcpro_hw_params,
+       .startup = snd_rpi_hifiberry_dacplusadcpro_startup,
+       .shutdown = snd_rpi_hifiberry_dacplusadcpro_shutdown,
+};
+
+SND_SOC_DAILINK_DEFS(hifi,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi"),
+                          COMP_CODEC("pcm186x.1-004a", "pcm1863-aif")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link snd_rpi_hifiberry_dacplusadcpro_dai[] = {
+{
+       .name           = "HiFiBerry DAC+ADC PRO",
+       .stream_name    = "HiFiBerry DAC+ADC PRO HiFi",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                               SND_SOC_DAIFMT_CBS_CFS,
+       .ops            = &snd_rpi_hifiberry_dacplusadcpro_ops,
+       .init           = snd_rpi_hifiberry_dacplusadcpro_init,
+       SND_SOC_DAILINK_REG(hifi),
+},
+};
+
+/* aux device for optional headphone amp */
+static struct snd_soc_aux_dev hifiberry_dacplusadcpro_aux_devs[] = {
+       {
+               .dlc = {
+                       .name = "tpa6130a2.1-0060",
+               },
+       },
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_rpi_hifiberry_dacplusadcpro = {
+       .name         = "snd_rpi_hifiberry_dacplusadcpro",
+       .driver_name  = "HifiberryDacpAdcPro",
+       .owner        = THIS_MODULE,
+       .dai_link     = snd_rpi_hifiberry_dacplusadcpro_dai,
+       .num_links    = ARRAY_SIZE(snd_rpi_hifiberry_dacplusadcpro_dai),
+};
+
+static int hb_hp_detect(void)
+{
+       struct i2c_adapter *adap = i2c_get_adapter(1);
+       int ret;
+       struct i2c_client tpa_i2c_client = {
+               .addr = 0x60,
+               .adapter = adap,
+       };
+
+       if (!adap)
+               return -EPROBE_DEFER;   /* I2C module not yet available */
+
+       ret = i2c_smbus_read_byte(&tpa_i2c_client) >= 0;
+       i2c_put_adapter(adap);
+       return ret;
+};
+
+static struct property tpa_enable_prop = {
+              .name = "status",
+              .length = 4 + 1, /* length 'okay' + 1 */
+              .value = "okay",
+       };
+
+static int snd_rpi_hifiberry_dacplusadcpro_probe(struct platform_device *pdev)
+{
+       int ret = 0, i = 0;
+       struct snd_soc_card *card = &snd_rpi_hifiberry_dacplusadcpro;
+       struct device_node *tpa_node;
+       struct property *tpa_prop;
+       struct of_changeset ocs;
+       int len;
+
+       /* probe for head phone amp */
+       ret = hb_hp_detect();
+       if (ret < 0)
+               return ret;
+       if (ret) {
+               card->aux_dev = hifiberry_dacplusadcpro_aux_devs;
+               card->num_aux_devs =
+                               ARRAY_SIZE(hifiberry_dacplusadcpro_aux_devs);
+               tpa_node = of_find_compatible_node(NULL, NULL, "ti,tpa6130a2");
+               tpa_prop = of_find_property(tpa_node, "status", &len);
+
+               if (strcmp((char *)tpa_prop->value, "okay")) {
+                       /* and activate headphone using change_sets */
+                       dev_info(&pdev->dev, "activating headphone amplifier");
+                       of_changeset_init(&ocs);
+                       ret = of_changeset_update_property(&ocs, tpa_node,
+                                                       &tpa_enable_prop);
+                       if (ret) {
+                               dev_err(&pdev->dev,
+                               "cannot activate headphone amplifier\n");
+                               return -ENODEV;
+                       }
+                       ret = of_changeset_apply(&ocs);
+                       if (ret) {
+                               dev_err(&pdev->dev,
+                               "cannot activate headphone amplifier\n");
+                               return -ENODEV;
+                       }
+               }
+       }
+
+       snd_rpi_hifiberry_dacplusadcpro.dev = &pdev->dev;
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_dai_link *dai;
+
+               dai = &snd_rpi_hifiberry_dacplusadcpro_dai[0];
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                       "i2s-controller", 0);
+               if (i2s_node) {
+                       for (i = 0; i < card->num_links; i++) {
+                               dai->cpus->dai_name = NULL;
+                               dai->cpus->of_node = i2s_node;
+                               dai->platforms->name = NULL;
+                               dai->platforms->of_node = i2s_node;
+                       }
+               }
+       }
+       digital_gain_0db_limit = !of_property_read_bool(
+               pdev->dev.of_node, "hifiberry-dacplusadcpro,24db_digital_gain");
+       slave = of_property_read_bool(pdev->dev.of_node,
+                                       "hifiberry-dacplusadcpro,slave");
+       leds_off = of_property_read_bool(pdev->dev.of_node,
+                                       "hifiberry-dacplusadcpro,leds_off");
+       ret = snd_soc_register_card(&snd_rpi_hifiberry_dacplusadcpro);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev,
+                       "snd_soc_register_card() failed: %d\n", ret);
+
+       return ret;
+}
+
+static const struct of_device_id snd_rpi_hifiberry_dacplusadcpro_of_match[] = {
+       { .compatible = "hifiberry,hifiberry-dacplusadcpro", },
+       {},
+};
+
+MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dacplusadcpro_of_match);
+
+static struct platform_driver snd_rpi_hifiberry_dacplusadcpro_driver = {
+       .driver = {
+               .name   = "snd-rpi-hifiberry-dacplusadcpro",
+               .owner  = THIS_MODULE,
+               .of_match_table = snd_rpi_hifiberry_dacplusadcpro_of_match,
+       },
+       .probe          = snd_rpi_hifiberry_dacplusadcpro_probe,
+};
+
+module_platform_driver(snd_rpi_hifiberry_dacplusadcpro_driver);
+
+MODULE_AUTHOR("Joerg Schambacher <joerg@hifiberry.com>");
+MODULE_AUTHOR("Daniel Matuschek <daniel@hifiberry.com>");
+MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+ADC");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/hifiberry_dacplusdsp.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ASoC Driver for HiFiBerry DAC + DSP
+ *
+ * Author:     Joerg Schambacher <joscha@schambacher.com>
+ *             Copyright 2018
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <sound/soc.h>
+
+static struct snd_soc_component_driver dacplusdsp_component_driver;
+
+static struct snd_soc_dai_driver dacplusdsp_dai = {
+       .name = "dacplusdsp-hifi",
+       .capture = {
+               .stream_name = "DAC+DSP Capture",
+               .channels_min = 2,
+               .channels_max = 2,
+               .rates = SNDRV_PCM_RATE_CONTINUOUS,
+               .formats = SNDRV_PCM_FMTBIT_S16_LE |
+                          SNDRV_PCM_FMTBIT_S24_LE |
+                          SNDRV_PCM_FMTBIT_S32_LE,
+       },
+       .playback = {
+               .stream_name = "DACP+DSP Playback",
+               .channels_min = 2,
+               .channels_max = 2,
+               .rates = SNDRV_PCM_RATE_CONTINUOUS,
+               .formats = SNDRV_PCM_FMTBIT_S16_LE |
+                          SNDRV_PCM_FMTBIT_S24_LE |
+                          SNDRV_PCM_FMTBIT_S32_LE,
+       },
+       .symmetric_rate = 1};
+
+#ifdef CONFIG_OF
+static const struct of_device_id dacplusdsp_ids[] = {
+       {
+               .compatible = "hifiberry,dacplusdsp",
+       },
+       {} };
+MODULE_DEVICE_TABLE(of, dacplusdsp_ids);
+#endif
+
+static int dacplusdsp_platform_probe(struct platform_device *pdev)
+{
+       int ret;
+
+       ret = snd_soc_register_component(&pdev->dev,
+                       &dacplusdsp_component_driver, &dacplusdsp_dai, 1);
+       if (ret) {
+               pr_alert("snd_soc_register_component failed\n");
+               return ret;
+       }
+
+       return 0;
+}
+
+static int dacplusdsp_platform_remove(struct platform_device *pdev)
+{
+       snd_soc_unregister_component(&pdev->dev);
+       return 0;
+}
+
+static struct platform_driver dacplusdsp_driver = {
+       .driver = {
+               .name = "hifiberry-dacplusdsp-codec",
+               .of_match_table = of_match_ptr(dacplusdsp_ids),
+               },
+               .probe = dacplusdsp_platform_probe,
+               .remove = dacplusdsp_platform_remove,
+};
+
+module_platform_driver(dacplusdsp_driver);
+
+MODULE_AUTHOR("Joerg Schambacher <joerg@i2audio.com>");
+MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+DSP");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/hifiberry_dacplushd.c
@@ -0,0 +1,238 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ASoC Driver for HiFiBerry DAC+ HD
+ *
+ * Author:     Joerg Schambacher, i2Audio GmbH for HiFiBerry
+ *             Copyright 2020
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <linux/i2c.h>
+#include <linux/clk.h>
+
+#include "../codecs/pcm179x.h"
+
+#define DEFAULT_RATE           44100
+
+struct brd_drv_data {
+       struct regmap *regmap;
+       struct clk *sclk;
+};
+
+static struct brd_drv_data drvdata;
+static struct gpio_desc *reset_gpio;
+static const unsigned int hb_dacplushd_rates[] = {
+       192000, 96000, 48000, 176400, 88200, 44100,
+};
+
+static struct snd_pcm_hw_constraint_list hb_dacplushd_constraints = {
+       .list = hb_dacplushd_rates,
+       .count = ARRAY_SIZE(hb_dacplushd_rates),
+};
+
+static int snd_rpi_hb_dacplushd_startup(struct snd_pcm_substream *substream)
+{
+       /* constraints for standard sample rates */
+       snd_pcm_hw_constraint_list(substream->runtime, 0,
+                               SNDRV_PCM_HW_PARAM_RATE,
+                               &hb_dacplushd_constraints);
+       return 0;
+}
+
+static void snd_rpi_hifiberry_dacplushd_set_sclk(
+               struct snd_soc_component *component,
+               int sample_rate)
+{
+       if (!IS_ERR(drvdata.sclk))
+               clk_set_rate(drvdata.sclk, sample_rate);
+}
+
+static int snd_rpi_hifiberry_dacplushd_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_dai_link *dai = rtd->dai_link;
+       struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+
+       dai->name = "HiFiBerry DAC+ HD";
+       dai->stream_name = "HiFiBerry DAC+ HD HiFi";
+       dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+               | SND_SOC_DAIFMT_CBM_CFM;
+
+       /* allow only fixed 32 clock counts per channel */
+       snd_soc_dai_set_bclk_ratio(cpu_dai, 32*2);
+
+       return 0;
+}
+
+static int snd_rpi_hifiberry_dacplushd_hw_params(
+       struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
+{
+       int ret = 0;
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+       snd_rpi_hifiberry_dacplushd_set_sclk(component, params_rate(params));
+       return ret;
+}
+
+/* machine stream operations */
+static struct snd_soc_ops snd_rpi_hifiberry_dacplushd_ops = {
+       .startup = snd_rpi_hb_dacplushd_startup,
+       .hw_params = snd_rpi_hifiberry_dacplushd_hw_params,
+};
+
+SND_SOC_DAILINK_DEFS(hifi,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("pcm179x.1-004c", "pcm179x-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+
+static struct snd_soc_dai_link snd_rpi_hifiberry_dacplushd_dai[] = {
+{
+       .name           = "HiFiBerry DAC+ HD",
+       .stream_name    = "HiFiBerry DAC+ HD HiFi",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                               SND_SOC_DAIFMT_CBS_CFS,
+       .ops            = &snd_rpi_hifiberry_dacplushd_ops,
+       .init           = snd_rpi_hifiberry_dacplushd_init,
+       SND_SOC_DAILINK_REG(hifi),
+},
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_rpi_hifiberry_dacplushd = {
+       .name         = "snd_rpi_hifiberry_dacplushd",
+       .driver_name  = "HifiberryDacplusHD",
+       .owner        = THIS_MODULE,
+       .dai_link     = snd_rpi_hifiberry_dacplushd_dai,
+       .num_links    = ARRAY_SIZE(snd_rpi_hifiberry_dacplushd_dai),
+};
+
+static int snd_rpi_hifiberry_dacplushd_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+       static int dac_reset_done;
+       struct device *dev = &pdev->dev;
+       struct device_node *dev_node = dev->of_node;
+
+       snd_rpi_hifiberry_dacplushd.dev = &pdev->dev;
+
+       /* get GPIO and release DAC from RESET */
+       if (!dac_reset_done) {
+               reset_gpio = gpiod_get(&pdev->dev, "reset", GPIOD_OUT_LOW);
+               if (IS_ERR(reset_gpio)) {
+                       dev_err(&pdev->dev, "gpiod_get() failed\n");
+                       return -EINVAL;
+               }
+               dac_reset_done = 1;
+       }
+       if (!IS_ERR(reset_gpio))
+               gpiod_set_value(reset_gpio, 0);
+       msleep(1);
+       if (!IS_ERR(reset_gpio))
+               gpiod_set_value(reset_gpio, 1);
+       msleep(1);
+       if (!IS_ERR(reset_gpio))
+               gpiod_set_value(reset_gpio, 0);
+
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_dai_link *dai;
+
+               dai = &snd_rpi_hifiberry_dacplushd_dai[0];
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                       "i2s-controller", 0);
+
+               if (i2s_node) {
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->of_node = i2s_node;
+                       dai->cpus->dai_name = NULL;
+                       dai->platforms->name = NULL;
+               } else {
+                       return -EPROBE_DEFER;
+               }
+
+       }
+
+       ret = devm_snd_soc_register_card(&pdev->dev,
+                       &snd_rpi_hifiberry_dacplushd);
+       if (ret && ret != -EPROBE_DEFER) {
+               dev_err(&pdev->dev,
+                       "snd_soc_register_card() failed: %d\n", ret);
+               return ret;
+       }
+       if (ret == -EPROBE_DEFER)
+               return ret;
+
+       dev_set_drvdata(dev, &drvdata);
+       if (dev_node == NULL) {
+               dev_err(&pdev->dev, "Device tree node not found\n");
+               return -ENODEV;
+       }
+
+       drvdata.sclk = devm_clk_get(dev, NULL);
+       if (IS_ERR(drvdata.sclk)) {
+               drvdata.sclk = ERR_PTR(-ENOENT);
+               return -ENODEV;
+       }
+
+       clk_set_rate(drvdata.sclk, DEFAULT_RATE);
+
+       return ret;
+}
+
+static int snd_rpi_hifiberry_dacplushd_remove(struct platform_device *pdev)
+{
+       if (IS_ERR(reset_gpio))
+               return -EINVAL;
+
+       /* put DAC into RESET and release GPIO */
+       gpiod_set_value(reset_gpio, 0);
+       gpiod_put(reset_gpio);
+
+       return 0;
+}
+
+static const struct of_device_id snd_rpi_hifiberry_dacplushd_of_match[] = {
+       { .compatible = "hifiberry,hifiberry-dacplushd", },
+       {},
+};
+
+MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dacplushd_of_match);
+
+static struct platform_driver snd_rpi_hifiberry_dacplushd_driver = {
+       .driver = {
+               .name   = "snd-rpi-hifiberry-dacplushd",
+               .owner  = THIS_MODULE,
+               .of_match_table = snd_rpi_hifiberry_dacplushd_of_match,
+       },
+       .probe          = snd_rpi_hifiberry_dacplushd_probe,
+       .remove         = snd_rpi_hifiberry_dacplushd_remove,
+};
+
+module_platform_driver(snd_rpi_hifiberry_dacplushd_driver);
+
+MODULE_AUTHOR("Joerg Schambacher <joerg@i2audio.com>");
+MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+ HD");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/i-sabre-q2m.c
@@ -0,0 +1,159 @@
+/*
+ * ASoC Driver for I-Sabre Q2M
+ *
+ * Author: Satoru Kawase
+ * Modified by: Xiao Qingyong
+ * Update kernel v4.18+ by : Audiophonics
+ *             Copyright 2018 Audiophonics
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/fs.h>
+#include <asm/uaccess.h>
+#include <sound/core.h>
+#include <sound/soc.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+
+#include "../codecs/i-sabre-codec.h"
+
+
+static int snd_rpi_i_sabre_q2m_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       unsigned int value;
+
+       /* Device ID */
+       value = snd_soc_component_read(component, ISABRECODEC_REG_01);
+       dev_info(component->card->dev, "Audiophonics Device ID : %02X\n", value);
+
+       /* API revision */
+       value = snd_soc_component_read(component, ISABRECODEC_REG_02);
+       dev_info(component->card->dev, "Audiophonics API revision : %02X\n", value);
+
+       return 0;
+}
+
+static int snd_rpi_i_sabre_q2m_hw_params(
+       struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd     = substream->private_data;
+       struct snd_soc_dai         *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+       int bclk_ratio;
+
+       bclk_ratio = snd_pcm_format_physical_width(
+                       params_format(params)) * params_channels(params);
+       return snd_soc_dai_set_bclk_ratio(cpu_dai, bclk_ratio);
+}
+
+/* machine stream operations */
+static struct snd_soc_ops snd_rpi_i_sabre_q2m_ops = {
+       .hw_params = snd_rpi_i_sabre_q2m_hw_params,
+};
+
+SND_SOC_DAILINK_DEFS(rpi_i_sabre_q2m,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("i-sabre-codec-i2c.1-0048", "i-sabre-codec-dai")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link snd_rpi_i_sabre_q2m_dai[] = {
+       {
+               .name           = "I-Sabre Q2M",
+               .stream_name    = "I-Sabre Q2M DAC",
+               .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+                                               | SND_SOC_DAIFMT_CBS_CFS,
+               .init           = snd_rpi_i_sabre_q2m_init,
+               .ops            = &snd_rpi_i_sabre_q2m_ops,
+               SND_SOC_DAILINK_REG(rpi_i_sabre_q2m),
+       }
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_rpi_i_sabre_q2m = {
+       .name      = "I-Sabre Q2M DAC",
+       .owner     = THIS_MODULE,
+       .dai_link  = snd_rpi_i_sabre_q2m_dai,
+       .num_links = ARRAY_SIZE(snd_rpi_i_sabre_q2m_dai)
+};
+
+
+static int snd_rpi_i_sabre_q2m_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+
+       snd_rpi_i_sabre_q2m.dev = &pdev->dev;
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_dai_link *dai;
+
+               dai = &snd_rpi_i_sabre_q2m_dai[0];
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                                                       "i2s-controller", 0);
+               if (i2s_node) {
+                       dai->cpus->dai_name     = NULL;
+                       dai->cpus->of_node      = i2s_node;
+                       dai->platforms->name    = NULL;
+                       dai->platforms->of_node = i2s_node;
+               } else {
+                       dev_err(&pdev->dev,
+                           "Property 'i2s-controller' missing or invalid\n");
+                       return (-EINVAL);
+               }
+
+               dai->name        = "I-Sabre Q2M";
+               dai->stream_name = "I-Sabre Q2M DAC";
+               dai->dai_fmt     = SND_SOC_DAIFMT_I2S
+                                       | SND_SOC_DAIFMT_NB_NF
+                                       | SND_SOC_DAIFMT_CBS_CFS;
+       }
+
+       /* Wait for registering codec driver */
+       mdelay(50);
+
+       ret = snd_soc_register_card(&snd_rpi_i_sabre_q2m);
+       if (ret) {
+               dev_err(&pdev->dev,
+                       "snd_soc_register_card() failed: %d\n", ret);
+       }
+
+       return ret;
+}
+
+static int snd_rpi_i_sabre_q2m_remove(struct platform_device *pdev)
+{
+       snd_soc_unregister_card(&snd_rpi_i_sabre_q2m);
+       return 0;
+}
+
+static const struct of_device_id snd_rpi_i_sabre_q2m_of_match[] = {
+       { .compatible = "audiophonics,i-sabre-q2m", },
+       {}
+};
+MODULE_DEVICE_TABLE(of, snd_rpi_i_sabre_q2m_of_match);
+
+static struct platform_driver snd_rpi_i_sabre_q2m_driver = {
+       .driver = {
+               .name           = "snd-rpi-i-sabre-q2m",
+               .owner          = THIS_MODULE,
+               .of_match_table = snd_rpi_i_sabre_q2m_of_match,
+       },
+       .probe  = snd_rpi_i_sabre_q2m_probe,
+       .remove = snd_rpi_i_sabre_q2m_remove,
+};
+module_platform_driver(snd_rpi_i_sabre_q2m_driver);
+
+MODULE_DESCRIPTION("ASoC Driver for I-Sabre Q2M");
+MODULE_AUTHOR("Audiophonics <http://www.audiophonics.fr>");
+MODULE_LICENSE("GPL");
--- /dev/null
+++ b/sound/soc/bcm/iqaudio-codec.c
@@ -0,0 +1,275 @@
+/*
+ * ASoC Driver for IQaudIO Raspberry Pi Codec board
+ *
+ * Author:     Gordon Garrity <gordon@iqaudio.com>
+ *             (C) Copyright IQaudio Limited, 2017-2019
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/gpio/consumer.h>
+#include <linux/platform_device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include <linux/acpi.h>
+#include <linux/slab.h>
+#include "../codecs/da7213.h"
+
+static int pll_out = DA7213_PLL_FREQ_OUT_90316800;
+
+static int snd_rpi_iqaudio_pll_control(struct snd_soc_dapm_widget *w,
+                                      struct snd_kcontrol *k, int  event)
+{
+       int ret = 0;
+       struct snd_soc_dapm_context *dapm = w->dapm;
+       struct snd_soc_card *card = dapm->card;
+       struct snd_soc_pcm_runtime *rtd =
+               snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+       struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+
+       if (SND_SOC_DAPM_EVENT_OFF(event)) {
+               ret = snd_soc_dai_set_pll(codec_dai, 0, DA7213_SYSCLK_MCLK, 0,
+                                         0);
+               if (ret)
+                       dev_err(card->dev, "Failed to bypass PLL: %d\n", ret);
+               /* Allow PLL time to bypass */
+               msleep(100);
+       } else if (SND_SOC_DAPM_EVENT_ON(event)) {
+               ret = snd_soc_dai_set_pll(codec_dai, 0, DA7213_SYSCLK_PLL, 0,
+                                         pll_out);
+               if (ret)
+                       dev_err(card->dev, "Failed to enable PLL: %d\n", ret);
+               /* Allow PLL time to lock */
+               msleep(100);
+       }
+
+       return ret;
+}
+
+static int snd_rpi_iqaudio_post_dapm_event(struct snd_soc_dapm_widget *w,
+                              struct snd_kcontrol *kcontrol,
+                              int event)
+{
+     switch (event) {
+     case SND_SOC_DAPM_POST_PMU:
+           /* Delay for mic bias ramp */
+           msleep(1000);
+           break;
+     default:
+           break;
+     }
+
+     return 0;
+}
+
+static const struct snd_kcontrol_new dapm_controls[] = {
+       SOC_DAPM_PIN_SWITCH("HP Jack"),
+       SOC_DAPM_PIN_SWITCH("MIC Jack"),
+       SOC_DAPM_PIN_SWITCH("Onboard MIC"),
+       SOC_DAPM_PIN_SWITCH("AUX Jack"),
+};
+
+static const struct snd_soc_dapm_widget dapm_widgets[] = {
+       SND_SOC_DAPM_HP("HP Jack", NULL),
+       SND_SOC_DAPM_MIC("MIC Jack", NULL),
+       SND_SOC_DAPM_MIC("Onboard MIC", NULL),
+       SND_SOC_DAPM_LINE("AUX Jack", NULL),
+       SND_SOC_DAPM_SUPPLY("PLL Control", SND_SOC_NOPM, 0, 0,
+                           snd_rpi_iqaudio_pll_control,
+                           SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+       SND_SOC_DAPM_POST("Post Power Up Event", snd_rpi_iqaudio_post_dapm_event),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+       {"HP Jack", NULL, "HPL"},
+       {"HP Jack", NULL, "HPR"},
+       {"HP Jack", NULL, "PLL Control"},
+
+       {"AUXR", NULL, "AUX Jack"},
+       {"AUXL", NULL, "AUX Jack"},
+       {"AUX Jack", NULL, "PLL Control"},
+
+       /* Assume Mic1 is linked to Headset and Mic2 to on-board mic */
+       {"MIC1", NULL, "MIC Jack"},
+       {"MIC Jack", NULL, "PLL Control"},
+       {"MIC2", NULL, "Onboard MIC"},
+       {"Onboard MIC", NULL, "PLL Control"},
+};
+
+/* machine stream operations */
+
+static int snd_rpi_iqaudio_codec_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+       struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+       int ret;
+
+       /*
+        * Disable AUX Jack Pin by default to prevent PLL being enabled at
+        * startup. This avoids holding the PLL to a fixed SR config for
+        * subsequent streams.
+        *
+        * This pin can still be enabled later, as required by user-space.
+        */
+       snd_soc_dapm_disable_pin(&rtd->card->dapm, "AUX Jack");
+       snd_soc_dapm_sync(&rtd->card->dapm);
+
+       /* Set bclk ratio to align with codec's BCLK rate */
+       ret = snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
+       if (ret) {
+               dev_err(rtd->dev, "Failed to set CPU BLCK ratio\n");
+               return ret;
+       }
+
+       /* Set MCLK frequency to codec, onboard 11.2896MHz clock */
+       return snd_soc_dai_set_sysclk(codec_dai, DA7213_CLKSRC_MCLK, 11289600,
+                                     SND_SOC_CLOCK_OUT);
+}
+
+static int snd_rpi_iqaudio_codec_hw_params(struct snd_pcm_substream *substream,
+                                          struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       unsigned int samplerate = params_rate(params);
+
+       switch (samplerate) {
+       case  8000:
+       case 16000:
+       case 32000:
+       case 48000:
+       case 96000:
+               pll_out = DA7213_PLL_FREQ_OUT_98304000;
+               return 0;
+       case 44100:
+       case 88200:
+               pll_out = DA7213_PLL_FREQ_OUT_90316800;
+               return 0;
+       default:
+               dev_err(rtd->dev,"Unsupported samplerate %d\n", samplerate);
+               return -EINVAL;
+       }
+}
+
+static const struct snd_soc_ops snd_rpi_iqaudio_codec_ops = {
+       .hw_params = snd_rpi_iqaudio_codec_hw_params,
+};
+
+SND_SOC_DAILINK_DEFS(rpi_iqaudio,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("da7213.1-001a", "da7213-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2835-i2s.0")));
+
+static struct snd_soc_dai_link snd_rpi_iqaudio_codec_dai[] = {
+{
+       .dai_fmt                = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                                 SND_SOC_DAIFMT_CBM_CFM,
+       .init                   = snd_rpi_iqaudio_codec_init,
+       .ops                    = &snd_rpi_iqaudio_codec_ops,
+       .symmetric_rate = 1,
+       .symmetric_channels     = 1,
+       .symmetric_sample_bits  = 1,
+       SND_SOC_DAILINK_REG(rpi_iqaudio),
+},
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_rpi_iqaudio_codec = {
+       .owner                  = THIS_MODULE,
+       .dai_link               = snd_rpi_iqaudio_codec_dai,
+       .num_links              = ARRAY_SIZE(snd_rpi_iqaudio_codec_dai),
+       .controls               = dapm_controls,
+       .num_controls           = ARRAY_SIZE(dapm_controls),
+       .dapm_widgets           = dapm_widgets,
+       .num_dapm_widgets       = ARRAY_SIZE(dapm_widgets),
+       .dapm_routes            = audio_map,
+       .num_dapm_routes        = ARRAY_SIZE(audio_map),
+};
+
+static int snd_rpi_iqaudio_codec_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+
+       snd_rpi_iqaudio_codec.dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_card *card = &snd_rpi_iqaudio_codec;
+               struct snd_soc_dai_link *dai = &snd_rpi_iqaudio_codec_dai[0];
+
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                                           "i2s-controller", 0);
+               if (i2s_node) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_node;
+               }
+
+               if (of_property_read_string(pdev->dev.of_node, "card_name",
+                                           &card->name))
+                       card->name = "IQaudIOCODEC";
+
+               if (of_property_read_string(pdev->dev.of_node, "dai_name",
+                                           &dai->name))
+                       dai->name = "IQaudIO CODEC";
+
+               if (of_property_read_string(pdev->dev.of_node,
+                                       "dai_stream_name", &dai->stream_name))
+                       dai->stream_name = "IQaudIO CODEC HiFi v1.2";
+
+       }
+
+       ret = snd_soc_register_card(&snd_rpi_iqaudio_codec);
+       if (ret) {
+               if (ret != -EPROBE_DEFER)
+                       dev_err(&pdev->dev,
+                               "snd_soc_register_card() failed: %d\n", ret);
+               return ret;
+       }
+
+       return 0;
+}
+
+static int snd_rpi_iqaudio_codec_remove(struct platform_device *pdev)
+{
+       snd_soc_unregister_card(&snd_rpi_iqaudio_codec);
+       return 0;
+}
+
+static const struct of_device_id iqaudio_of_match[] = {
+       { .compatible = "iqaudio,iqaudio-codec", },
+       {},
+};
+
+MODULE_DEVICE_TABLE(of, iqaudio_of_match);
+
+static struct platform_driver snd_rpi_iqaudio_codec_driver = {
+       .driver = {
+               .name   = "snd-rpi-iqaudio-codec",
+               .owner  = THIS_MODULE,
+               .of_match_table = iqaudio_of_match,
+       },
+       .probe          = snd_rpi_iqaudio_codec_probe,
+       .remove         = snd_rpi_iqaudio_codec_remove,
+};
+
+
+
+module_platform_driver(snd_rpi_iqaudio_codec_driver);
+
+MODULE_AUTHOR("Gordon Garrity <gordon@iqaudio.com>");
+MODULE_DESCRIPTION("ASoC Driver for IQaudIO CODEC");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/iqaudio-dac.c
@@ -0,0 +1,224 @@
+/*
+ * ASoC Driver for IQaudIO DAC
+ *
+ * Author:     Florian Meier <florian.meier@koalo.de>
+ *             Copyright 2013
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/gpio/consumer.h>
+#include <linux/platform_device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+static bool digital_gain_0db_limit = true;
+
+static struct gpio_desc *mute_gpio;
+
+static int snd_rpi_iqaudio_dac_init(struct snd_soc_pcm_runtime *rtd)
+{
+       if (digital_gain_0db_limit)
+       {
+               int ret;
+               struct snd_soc_card *card = rtd->card;
+
+               ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
+               if (ret < 0)
+                       dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
+       }
+
+       return 0;
+}
+
+static void snd_rpi_iqaudio_gpio_mute(struct snd_soc_card *card)
+{
+       if (mute_gpio) {
+               dev_info(card->dev, "%s: muting amp using GPIO22\n",
+                        __func__);
+               gpiod_set_value_cansleep(mute_gpio, 0);
+       }
+}
+
+static void snd_rpi_iqaudio_gpio_unmute(struct snd_soc_card *card)
+{
+       if (mute_gpio) {
+               dev_info(card->dev, "%s: un-muting amp using GPIO22\n",
+                        __func__);
+               gpiod_set_value_cansleep(mute_gpio, 1);
+       }
+}
+
+static int snd_rpi_iqaudio_set_bias_level(struct snd_soc_card *card,
+       struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level)
+{
+       struct snd_soc_pcm_runtime *rtd;
+       struct snd_soc_dai *codec_dai;
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+       codec_dai = asoc_rtd_to_codec(rtd, 0);
+
+       if (dapm->dev != codec_dai->dev)
+               return 0;
+
+       switch (level) {
+       case SND_SOC_BIAS_PREPARE:
+               if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
+                       break;
+
+               /* UNMUTE AMP */
+               snd_rpi_iqaudio_gpio_unmute(card);
+
+               break;
+       case SND_SOC_BIAS_STANDBY:
+               if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
+                       break;
+
+               /* MUTE AMP */
+               snd_rpi_iqaudio_gpio_mute(card);
+
+               break;
+       default:
+               break;
+       }
+
+       return 0;
+}
+
+SND_SOC_DAILINK_DEFS(hifi,
+        DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+        DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004c", "pcm512x-hifi")),
+        DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link snd_rpi_iqaudio_dac_dai[] = {
+{
+       .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                               SND_SOC_DAIFMT_CBS_CFS,
+       .init           = snd_rpi_iqaudio_dac_init,
+       SND_SOC_DAILINK_REG(hifi),
+},
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_rpi_iqaudio_dac = {
+       .owner        = THIS_MODULE,
+       .dai_link     = snd_rpi_iqaudio_dac_dai,
+       .num_links    = ARRAY_SIZE(snd_rpi_iqaudio_dac_dai),
+};
+
+static int snd_rpi_iqaudio_dac_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+       bool gpio_unmute = false;
+
+       snd_rpi_iqaudio_dac.dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_card *card = &snd_rpi_iqaudio_dac;
+               struct snd_soc_dai_link *dai = &snd_rpi_iqaudio_dac_dai[0];
+               bool auto_gpio_mute = false;
+
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                                           "i2s-controller", 0);
+               if (i2s_node) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_node;
+               }
+
+               digital_gain_0db_limit = !of_property_read_bool(
+                       pdev->dev.of_node, "iqaudio,24db_digital_gain");
+
+               if (of_property_read_string(pdev->dev.of_node, "card_name",
+                                           &card->name))
+                       card->name = "IQaudIODAC";
+
+               if (of_property_read_string(pdev->dev.of_node, "dai_name",
+                                           &dai->name))
+                       dai->name = "IQaudIO DAC";
+
+               if (of_property_read_string(pdev->dev.of_node,
+                                       "dai_stream_name", &dai->stream_name))
+                       dai->stream_name = "IQaudIO DAC HiFi";
+
+               /* gpio_unmute - one time unmute amp using GPIO */
+               gpio_unmute = of_property_read_bool(pdev->dev.of_node,
+                                                   "iqaudio-dac,unmute-amp");
+
+               /* auto_gpio_mute - mute/unmute amp using GPIO */
+               auto_gpio_mute = of_property_read_bool(pdev->dev.of_node,
+                                               "iqaudio-dac,auto-mute-amp");
+
+               if (auto_gpio_mute || gpio_unmute) {
+                       mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute",
+                                                           GPIOD_OUT_LOW);
+                       if (IS_ERR(mute_gpio)) {
+                               ret = PTR_ERR(mute_gpio);
+                               dev_err(&pdev->dev,
+                                       "Failed to get mute gpio: %d\n", ret);
+                               return ret;
+                       }
+
+                       if (auto_gpio_mute && mute_gpio)
+                               snd_rpi_iqaudio_dac.set_bias_level =
+                                               snd_rpi_iqaudio_set_bias_level;
+               }
+       }
+
+       ret = snd_soc_register_card(&snd_rpi_iqaudio_dac);
+       if (ret) {
+               if (ret != -EPROBE_DEFER)
+                       dev_err(&pdev->dev,
+                               "snd_soc_register_card() failed: %d\n", ret);
+               return ret;
+       }
+
+       if (gpio_unmute && mute_gpio)
+               snd_rpi_iqaudio_gpio_unmute(&snd_rpi_iqaudio_dac);
+
+       return 0;
+}
+
+static int snd_rpi_iqaudio_dac_remove(struct platform_device *pdev)
+{
+       snd_rpi_iqaudio_gpio_mute(&snd_rpi_iqaudio_dac);
+
+       snd_soc_unregister_card(&snd_rpi_iqaudio_dac);
+       return 0;
+}
+
+static const struct of_device_id iqaudio_of_match[] = {
+       { .compatible = "iqaudio,iqaudio-dac", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, iqaudio_of_match);
+
+static struct platform_driver snd_rpi_iqaudio_dac_driver = {
+       .driver = {
+               .name   = "snd-rpi-iqaudio-dac",
+               .owner  = THIS_MODULE,
+               .of_match_table = iqaudio_of_match,
+       },
+       .probe          = snd_rpi_iqaudio_dac_probe,
+       .remove         = snd_rpi_iqaudio_dac_remove,
+};
+
+module_platform_driver(snd_rpi_iqaudio_dac_driver);
+
+MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>");
+MODULE_DESCRIPTION("ASoC Driver for IQAudio DAC");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/justboom-both.c
@@ -0,0 +1,267 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * rpi--wm8804.c -- ALSA SoC Raspberry Pi soundcard.
+ *
+ * Authors: Johannes Krude <johannes@krude.de
+ *
+ * Driver for when connecting simultaneously justboom-digi and justboom-dac
+ *
+ * Based upon code from:
+ * justboom-digi.c
+ * by Milan Neskovic <info@justboom.co>
+ * justboom-dac.c
+ * by Milan Neskovic <info@justboom.co>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include "../codecs/wm8804.h"
+#include "../codecs/pcm512x.h"
+
+
+static bool digital_gain_0db_limit = true;
+
+static int snd_rpi_justboom_both_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_component *digi = asoc_rtd_to_codec(rtd, 0)->component;
+       struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 1)->component;
+
+       /* enable  TX output */
+       snd_soc_component_update_bits(digi, WM8804_PWRDN, 0x4, 0x0);
+
+       snd_soc_component_update_bits(dac, PCM512x_GPIO_EN, 0x08, 0x08);
+       snd_soc_component_update_bits(dac, PCM512x_GPIO_OUTPUT_4, 0xf, 0x02);
+       snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
+
+       if (digital_gain_0db_limit) {
+               int ret;
+               struct snd_soc_card *card = rtd->card;
+
+               ret = snd_soc_limit_volume(card, "Digital Playback Volume",
+                                                                       207);
+               if (ret < 0)
+                       dev_warn(card->dev, "Failed to set volume limit: %d\n",
+                                                                       ret);
+       }
+
+       return 0;
+}
+
+static int snd_rpi_justboom_both_hw_params(struct snd_pcm_substream *substream,
+                                      struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+       struct snd_soc_component *digi = asoc_rtd_to_codec(rtd, 0)->component;
+       struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+
+       int sysclk = 27000000; /* This is fixed on this board */
+
+       long mclk_freq    = 0;
+       int mclk_div      = 1;
+       int sampling_freq = 1;
+
+       int ret;
+
+       int samplerate = params_rate(params);
+
+       if (samplerate <= 96000) {
+               mclk_freq = samplerate*256;
+               mclk_div  = WM8804_MCLKDIV_256FS;
+       } else {
+               mclk_freq = samplerate*128;
+               mclk_div  = WM8804_MCLKDIV_128FS;
+       }
+
+       switch (samplerate) {
+       case 32000:
+               sampling_freq = 0x03;
+               break;
+       case 44100:
+               sampling_freq = 0x00;
+               break;
+       case 48000:
+               sampling_freq = 0x02;
+               break;
+       case 88200:
+               sampling_freq = 0x08;
+               break;
+       case 96000:
+               sampling_freq = 0x0a;
+               break;
+       case 176400:
+               sampling_freq = 0x0c;
+               break;
+       case 192000:
+               sampling_freq = 0x0e;
+               break;
+       default:
+               dev_err(rtd->card->dev,
+               "Failed to set WM8804 SYSCLK, unsupported samplerate %d\n",
+               samplerate);
+       }
+
+       snd_soc_dai_set_clkdiv(codec_dai, WM8804_MCLK_DIV, mclk_div);
+       snd_soc_dai_set_pll(codec_dai, 0, 0, sysclk, mclk_freq);
+
+       ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL,
+                                       sysclk, SND_SOC_CLOCK_OUT);
+       if (ret < 0) {
+               dev_err(rtd->card->dev,
+               "Failed to set WM8804 SYSCLK: %d\n", ret);
+               return ret;
+       }
+
+       /* Enable TX output */
+       snd_soc_component_update_bits(digi, WM8804_PWRDN, 0x4, 0x0);
+
+       /* Power on */
+       snd_soc_component_update_bits(digi, WM8804_PWRDN, 0x9, 0);
+
+       /* set sampling frequency status bits */
+       snd_soc_component_update_bits(digi, WM8804_SPDTX4, 0x0f, sampling_freq);
+
+       return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
+}
+
+static int snd_rpi_justboom_both_startup(struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *digi = asoc_rtd_to_codec(rtd, 0)->component;
+       struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 1)->component;
+
+       /* turn on digital output */
+       snd_soc_component_update_bits(digi, WM8804_PWRDN, 0x3c, 0x00);
+
+       snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
+
+       return 0;
+}
+
+static void snd_rpi_justboom_both_shutdown(struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *digi = asoc_rtd_to_codec(rtd, 0)->component;
+       struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 1)->component;
+
+       snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
+
+       /* turn off output */
+       snd_soc_component_update_bits(digi, WM8804_PWRDN, 0x3c, 0x3c);
+}
+
+/* machine stream operations */
+static struct snd_soc_ops snd_rpi_justboom_both_ops = {
+       .hw_params = snd_rpi_justboom_both_hw_params,
+       .startup   = snd_rpi_justboom_both_startup,
+       .shutdown  = snd_rpi_justboom_both_shutdown,
+};
+
+SND_SOC_DAILINK_DEFS(rpi_justboom_both,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi"),
+                          COMP_CODEC("wm8804.1-003b", "wm8804-spdif")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link snd_rpi_justboom_both_dai[] = {
+{
+       .name           = "JustBoom Digi",
+       .stream_name    = "JustBoom Digi HiFi",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                                       SND_SOC_DAIFMT_CBM_CFM,
+       .ops            = &snd_rpi_justboom_both_ops,
+       .init           = snd_rpi_justboom_both_init,
+       SND_SOC_DAILINK_REG(rpi_justboom_both),
+},
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_rpi_justboom_both = {
+       .name             = "snd_rpi_justboom_both",
+       .driver_name      = "JustBoomBoth",
+       .owner            = THIS_MODULE,
+       .dai_link         = snd_rpi_justboom_both_dai,
+       .num_links        = ARRAY_SIZE(snd_rpi_justboom_both_dai),
+};
+
+static int snd_rpi_justboom_both_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+       struct snd_soc_card *card = &snd_rpi_justboom_both;
+
+       snd_rpi_justboom_both.dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_dai_link *dai = &snd_rpi_justboom_both_dai[0];
+
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                                           "i2s-controller", 0);
+
+               if (i2s_node) {
+                       int i;
+
+                       for (i = 0; i < card->num_links; i++) {
+                               dai->cpus->dai_name = NULL;
+                               dai->cpus->of_node = i2s_node;
+                               dai->platforms->name = NULL;
+                               dai->platforms->of_node = i2s_node;
+                       }
+               }
+
+               digital_gain_0db_limit = !of_property_read_bool(
+                       pdev->dev.of_node, "justboom,24db_digital_gain");
+       }
+
+       ret = snd_soc_register_card(card);
+       if (ret && ret != -EPROBE_DEFER) {
+               dev_err(&pdev->dev,
+                       "snd_soc_register_card() failed: %d\n", ret);
+       }
+
+       return ret;
+}
+
+static int snd_rpi_justboom_both_remove(struct platform_device *pdev)
+{
+       snd_soc_unregister_card(&snd_rpi_justboom_both);
+       return 0;
+}
+
+static const struct of_device_id snd_rpi_justboom_both_of_match[] = {
+       { .compatible = "justboom,justboom-both", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, snd_rpi_justboom_both_of_match);
+
+static struct platform_driver snd_rpi_justboom_both_driver = {
+       .driver = {
+               .name   = "snd-rpi-justboom-both",
+               .owner  = THIS_MODULE,
+               .of_match_table = snd_rpi_justboom_both_of_match,
+       },
+       .probe          = snd_rpi_justboom_both_probe,
+       .remove         = snd_rpi_justboom_both_remove,
+};
+
+module_platform_driver(snd_rpi_justboom_both_driver);
+
+MODULE_AUTHOR("Johannes Krude <johannes@krude.de>");
+MODULE_DESCRIPTION("ASoC Driver for simultaneous use of JustBoom PI Digi & DAC HAT Sound Cards");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/justboom-dac.c
@@ -0,0 +1,147 @@
+/*
+ * ASoC Driver for JustBoom DAC Raspberry Pi HAT Sound Card
+ *
+ * Author:     Milan Neskovic
+ *             Copyright 2016
+ *             based on code by Daniel Matuschek <info@crazy-audio.com>
+ *             based on code by Florian Meier <florian.meier@koalo.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include "../codecs/pcm512x.h"
+
+static bool digital_gain_0db_limit = true;
+
+static int snd_rpi_justboom_dac_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0xf, 0x02);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08,0x08);
+
+       if (digital_gain_0db_limit)
+       {
+               int ret;
+               struct snd_soc_card *card = rtd->card;
+
+               ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
+               if (ret < 0)
+                       dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
+       }
+
+       return 0;
+}
+
+static int snd_rpi_justboom_dac_startup(struct snd_pcm_substream *substream) {
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08,0x08);
+       return 0;
+}
+
+static void snd_rpi_justboom_dac_shutdown(struct snd_pcm_substream *substream) {
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08,0x00);
+}
+
+/* machine stream operations */
+static struct snd_soc_ops snd_rpi_justboom_dac_ops = {
+       .startup = snd_rpi_justboom_dac_startup,
+       .shutdown = snd_rpi_justboom_dac_shutdown,
+};
+
+SND_SOC_DAILINK_DEFS(hifi,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link snd_rpi_justboom_dac_dai[] = {
+{
+       .name           = "JustBoom DAC",
+       .stream_name    = "JustBoom DAC HiFi",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                               SND_SOC_DAIFMT_CBS_CFS,
+       .ops            = &snd_rpi_justboom_dac_ops,
+       .init           = snd_rpi_justboom_dac_init,
+       SND_SOC_DAILINK_REG(hifi),
+},
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_rpi_justboom_dac = {
+       .name         = "snd_rpi_justboom_dac",
+       .driver_name  = "JustBoomDac",
+       .owner        = THIS_MODULE,
+       .dai_link     = snd_rpi_justboom_dac_dai,
+       .num_links    = ARRAY_SIZE(snd_rpi_justboom_dac_dai),
+};
+
+static int snd_rpi_justboom_dac_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+
+       snd_rpi_justboom_dac.dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+           struct device_node *i2s_node;
+           struct snd_soc_dai_link *dai = &snd_rpi_justboom_dac_dai[0];
+           i2s_node = of_parse_phandle(pdev->dev.of_node,
+                                       "i2s-controller", 0);
+
+           if (i2s_node) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_node;
+           }
+
+           digital_gain_0db_limit = !of_property_read_bool(
+                       pdev->dev.of_node, "justboom,24db_digital_gain");
+       }
+
+       ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_justboom_dac);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev,
+                       "snd_soc_register_card() failed: %d\n", ret);
+
+       return ret;
+}
+
+static const struct of_device_id snd_rpi_justboom_dac_of_match[] = {
+       { .compatible = "justboom,justboom-dac", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, snd_rpi_justboom_dac_of_match);
+
+static struct platform_driver snd_rpi_justboom_dac_driver = {
+       .driver = {
+               .name   = "snd-rpi-justboom-dac",
+               .owner  = THIS_MODULE,
+               .of_match_table = snd_rpi_justboom_dac_of_match,
+       },
+       .probe          = snd_rpi_justboom_dac_probe,
+};
+
+module_platform_driver(snd_rpi_justboom_dac_driver);
+
+MODULE_AUTHOR("Milan Neskovic <info@justboom.co>");
+MODULE_DESCRIPTION("ASoC Driver for JustBoom PI DAC HAT Sound Card");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/pifi-40.c
@@ -0,0 +1,284 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * ALSA ASoC Machine Driver for PiFi-40
+ *
+ * Author:     David Knell <david.knell@gmail.com)
+ *             based on code by Daniel Matuschek <info@crazy-audio.com>
+ *             based on code by Florian Meier <florian.meier@koalo.de>
+ * Copyright (C) 2020
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/gpio/consumer.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <linux/firmware.h>
+#include <linux/delay.h>
+#include <sound/tlv.h>
+
+static struct gpio_desc *pdn_gpio;
+static int vol = 0x30;
+
+// Volume control
+static int pifi_40_vol_get(struct snd_kcontrol *kcontrol,
+                          struct snd_ctl_elem_value *ucontrol)
+{
+       ucontrol->value.integer.value[0] = vol;
+       ucontrol->value.integer.value[1] = vol;
+       return 0;
+}
+
+static int pifi_40_vol_set(struct snd_kcontrol *kcontrol,
+                          struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_pcm_runtime *rtd;
+       unsigned int v = ucontrol->value.integer.value[0];
+       struct snd_soc_component *dac[2];
+
+       rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+       dac[0] = asoc_rtd_to_codec(rtd, 0)->component;
+       dac[1] = asoc_rtd_to_codec(rtd, 1)->component;
+
+       snd_soc_component_write(dac[0], 0x07, 255 - v);
+       snd_soc_component_write(dac[1], 0x07, 255 - v);
+
+       vol = v;
+       return 1;
+}
+
+static const DECLARE_TLV_DB_SCALE(digital_tlv_master, -10350, 50, 1);
+static const struct snd_kcontrol_new pifi_40_controls[] = {
+       SOC_DOUBLE_R_EXT_TLV("Master Volume", 0x00, 0x01,
+                            0x00, // Min
+                            0xff, // Max
+                            0x01, // Invert
+                            pifi_40_vol_get, pifi_40_vol_set,
+                            digital_tlv_master)
+};
+
+static const char * const codec_ctl_pfx[] = { "Left", "Right" };
+
+static const char * const codec_ctl_name[] = { "Master Volume",
+                                       "Speaker Volume",
+                                       "Speaker Switch" };
+
+static int snd_pifi_40_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_card *card = rtd->card;
+       struct snd_soc_component *dac[2];
+       struct snd_kcontrol *kctl;
+       int i, j;
+
+       dac[0] = asoc_rtd_to_codec(rtd, 0)->component;
+       dac[1] = asoc_rtd_to_codec(rtd, 1)->component;
+
+
+       // Set up cards - pulse power down first
+       gpiod_set_value_cansleep(pdn_gpio, 1);
+       usleep_range(1000, 10000);
+       gpiod_set_value_cansleep(pdn_gpio, 0);
+       usleep_range(20000, 30000);
+
+       // Oscillator trim
+       snd_soc_component_write(dac[0], 0x1b, 0);
+       snd_soc_component_write(dac[1], 0x1b, 0);
+       usleep_range(60000, 80000);
+
+       // Common setup
+       for (i = 0; i < 2; i++) {
+               // MCLK at 64fs, sample rate 44.1 or 48kHz
+               snd_soc_component_write(dac[i], 0x00, 0x60);
+
+               // Set up for PBTL
+               snd_soc_component_write(dac[i], 0x19, 0x3A);
+               snd_soc_component_write(dac[i], 0x25, 0x01103245);
+
+               // Master vol to -10db
+               snd_soc_component_write(dac[i], 0x07, 0x44);
+       }
+       // Inputs set to L and R respectively
+       snd_soc_component_write(dac[0], 0x20, 0x00017772);
+       snd_soc_component_write(dac[1], 0x20, 0x00107772);
+
+       // Remove codec controls
+       for (i = 0; i < 2; i++) {
+               for (j = 0; j < 3; j++) {
+                       char cname[256];
+
+                       sprintf(cname, "%s %s", codec_ctl_pfx[i],
+                               codec_ctl_name[j]);
+                       kctl = snd_soc_card_get_kcontrol(card, cname);
+                       if (!kctl) {
+                               pr_info("Control %s not found\n",
+                                      cname);
+                       } else {
+                               kctl->vd[0].access =
+                                       SNDRV_CTL_ELEM_ACCESS_READWRITE;
+                               snd_ctl_remove(card->snd_card, kctl);
+                       }
+               }
+       }
+
+       return 0;
+}
+
+static int snd_pifi_40_hw_params(struct snd_pcm_substream *substream,
+                                struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+       unsigned int sample_bits;
+
+       sample_bits = snd_pcm_format_physical_width(params_format(params));
+       return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
+}
+
+static struct snd_soc_ops snd_pifi_40_ops = { .hw_params =
+                                                     snd_pifi_40_hw_params };
+
+static struct snd_soc_dai_link_component pifi_40_codecs[] = {
+       {
+               .dai_name = "tas571x-hifi",
+       },
+       {
+               .dai_name = "tas571x-hifi",
+       },
+};
+
+SND_SOC_DAILINK_DEFS(
+       pifi_40_dai, DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_CODEC("tas571x.1-001a", "tas571x-hifi"),
+                          COMP_CODEC("tas571x.1-001b", "tas571x-hifi")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_pifi_40_dai[] = {
+       {
+               .name = "PiFi40",
+               .stream_name = "PiFi40",
+               .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                          SND_SOC_DAIFMT_CBS_CFS,
+               .ops = &snd_pifi_40_ops,
+               .init = snd_pifi_40_init,
+               SND_SOC_DAILINK_REG(pifi_40_dai),
+       },
+};
+
+// Machine driver
+static struct snd_soc_card snd_pifi_40 = {
+       .name = "PiFi40",
+       .owner = THIS_MODULE,
+       .dai_link = snd_pifi_40_dai,
+       .num_links = ARRAY_SIZE(snd_pifi_40_dai),
+       .controls = pifi_40_controls,
+       .num_controls = ARRAY_SIZE(pifi_40_controls)
+};
+
+static void snd_pifi_40_pdn(struct snd_soc_card *card, int on)
+{
+       if (pdn_gpio)
+               gpiod_set_value_cansleep(pdn_gpio, on ? 0 : 1);
+}
+
+static int snd_pifi_40_probe(struct platform_device *pdev)
+{
+       struct snd_soc_card *card = &snd_pifi_40;
+       int ret = 0, i = 0;
+
+       card->dev = &pdev->dev;
+       platform_set_drvdata(pdev, &snd_pifi_40);
+
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_dai_link *dai;
+
+               dai = &snd_pifi_40_dai[0];
+               i2s_node = of_parse_phandle(pdev->dev.of_node, "i2s-controller",
+                                           0);
+               if (i2s_node) {
+                       for (i = 0; i < card->num_links; i++) {
+                               dai->cpus->dai_name = NULL;
+                               dai->cpus->of_node = i2s_node;
+                               dai->platforms->name = NULL;
+                               dai->platforms->of_node = i2s_node;
+                       }
+               }
+
+               pifi_40_codecs[0].of_node =
+                       of_parse_phandle(pdev->dev.of_node, "audio-codec", 0);
+               pifi_40_codecs[1].of_node =
+                       of_parse_phandle(pdev->dev.of_node, "audio-codec", 1);
+               if (!pifi_40_codecs[0].of_node || !pifi_40_codecs[1].of_node) {
+                       dev_err(&pdev->dev,
+                               "Property 'audio-codec' missing or invalid\n");
+                       return -EINVAL;
+               }
+
+               pdn_gpio = devm_gpiod_get_optional(&pdev->dev, "pdn",
+                                                  GPIOD_OUT_LOW);
+               if (IS_ERR(pdn_gpio)) {
+                       ret = PTR_ERR(pdn_gpio);
+                       dev_err(&pdev->dev, "failed to get pdn gpio: %d\n",
+                               ret);
+                       return ret;
+               }
+
+               ret = snd_soc_register_card(&snd_pifi_40);
+               if (ret < 0) {
+                       dev_err(&pdev->dev,
+                               "snd_soc_register_card() failed: %d\n", ret);
+                       return ret;
+               }
+
+               return 0;
+       }
+
+       return -EINVAL;
+}
+
+static int snd_pifi_40_remove(struct platform_device *pdev)
+{
+       struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+       kfree(&card->drvdata);
+       snd_pifi_40_pdn(&snd_pifi_40, 0);
+       snd_soc_unregister_card(&snd_pifi_40);
+       return 0;
+}
+
+static const struct of_device_id snd_pifi_40_of_match[] = {
+       {
+               .compatible = "pifi,pifi-40",
+       },
+       { /* sentinel */ },
+};
+
+MODULE_DEVICE_TABLE(of, snd_pifi_40_of_match);
+
+static struct platform_driver snd_pifi_40_driver = {
+       .driver = {
+               .name = "snd-pifi-40",
+               .owner = THIS_MODULE,
+               .of_match_table = snd_pifi_40_of_match,
+       },
+       .probe = snd_pifi_40_probe,
+       .remove = snd_pifi_40_remove,
+};
+
+module_platform_driver(snd_pifi_40_driver);
+
+MODULE_AUTHOR("David Knell <david.knell@gmail.com>");
+MODULE_DESCRIPTION("ALSA ASoC Machine Driver for PiFi-40");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/pisound.c
@@ -0,0 +1,1241 @@
+/*
+ * Pisound Linux kernel module.
+ * Copyright (C) 2016-2020  Vilniaus Blokas UAB, https://blokas.io/pisound
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA  02110-1301, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/kobject.h>
+#include <linux/sysfs.h>
+#include <linux/delay.h>
+#include <linux/spi/spi.h>
+#include <linux/interrupt.h>
+#include <linux/kfifo.h>
+#include <linux/jiffies.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <sound/rawmidi.h>
+#include <sound/asequencer.h>
+#include <sound/control.h>
+
+static int pisnd_spi_init(struct device *dev);
+static void pisnd_spi_uninit(void);
+
+static void pisnd_spi_flush(void);
+static void pisnd_spi_start(void);
+static uint8_t pisnd_spi_recv(uint8_t *buffer, uint8_t length);
+
+typedef void (*pisnd_spi_recv_cb)(void *data);
+static void pisnd_spi_set_callback(pisnd_spi_recv_cb cb, void *data);
+
+static const char *pisnd_spi_get_serial(void);
+static const char *pisnd_spi_get_id(void);
+static const char *pisnd_spi_get_fw_version(void);
+static const char *pisnd_spi_get_hw_version(void);
+
+static int pisnd_midi_init(struct snd_card *card);
+static void pisnd_midi_uninit(void);
+
+enum task_e {
+       TASK_PROCESS = 0,
+};
+
+static void pisnd_schedule_process(enum task_e task);
+
+#define PISOUND_LOG_PREFIX "pisound: "
+
+#ifdef PISOUND_DEBUG
+#      define printd(...) pr_alert(PISOUND_LOG_PREFIX __VA_ARGS__)
+#else
+#      define printd(...) do {} while (0)
+#endif
+
+#define printe(...) pr_err(PISOUND_LOG_PREFIX __VA_ARGS__)
+#define printi(...) pr_info(PISOUND_LOG_PREFIX __VA_ARGS__)
+
+static struct snd_rawmidi *g_rmidi;
+static struct snd_rawmidi_substream *g_midi_output_substream;
+
+static int pisnd_output_open(struct snd_rawmidi_substream *substream)
+{
+       g_midi_output_substream = substream;
+       return 0;
+}
+
+static int pisnd_output_close(struct snd_rawmidi_substream *substream)
+{
+       g_midi_output_substream = NULL;
+       return 0;
+}
+
+static void pisnd_output_trigger(
+       struct snd_rawmidi_substream *substream,
+       int up
+       )
+{
+       if (substream != g_midi_output_substream) {
+               printe("MIDI output trigger called for an unexpected stream!");
+               return;
+       }
+
+       if (!up)
+               return;
+
+       pisnd_spi_start();
+}
+
+static void pisnd_output_drain(struct snd_rawmidi_substream *substream)
+{
+       pisnd_spi_flush();
+}
+
+static int pisnd_input_open(struct snd_rawmidi_substream *substream)
+{
+       return 0;
+}
+
+static int pisnd_input_close(struct snd_rawmidi_substream *substream)
+{
+       return 0;
+}
+
+static void pisnd_midi_recv_callback(void *substream)
+{
+       uint8_t data[128];
+       uint8_t n = 0;
+
+       while ((n = pisnd_spi_recv(data, sizeof(data)))) {
+               int res = snd_rawmidi_receive(substream, data, n);
+               (void)res;
+               printd("midi recv %u bytes, res = %d\n", n, res);
+       }
+}
+
+static void pisnd_input_trigger(struct snd_rawmidi_substream *substream, int up)
+{
+       if (up) {
+               pisnd_spi_set_callback(pisnd_midi_recv_callback, substream);
+               pisnd_schedule_process(TASK_PROCESS);
+       } else {
+               pisnd_spi_set_callback(NULL, NULL);
+       }
+}
+
+static struct snd_rawmidi_ops pisnd_output_ops = {
+       .open = pisnd_output_open,
+       .close = pisnd_output_close,
+       .trigger = pisnd_output_trigger,
+       .drain = pisnd_output_drain,
+};
+
+static struct snd_rawmidi_ops pisnd_input_ops = {
+       .open = pisnd_input_open,
+       .close = pisnd_input_close,
+       .trigger = pisnd_input_trigger,
+};
+
+static void pisnd_get_port_info(
+       struct snd_rawmidi *rmidi,
+       int number,
+       struct snd_seq_port_info *seq_port_info
+       )
+{
+       seq_port_info->type =
+               SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC |
+               SNDRV_SEQ_PORT_TYPE_HARDWARE |
+               SNDRV_SEQ_PORT_TYPE_PORT;
+       seq_port_info->midi_voices = 0;
+}
+
+static struct snd_rawmidi_global_ops pisnd_global_ops = {
+       .get_port_info = pisnd_get_port_info,
+};
+
+static int pisnd_midi_init(struct snd_card *card)
+{
+       int err;
+
+       g_midi_output_substream = NULL;
+
+       err = snd_rawmidi_new(card, "pisound MIDI", 0, 1, 1, &g_rmidi);
+
+       if (err < 0) {
+               printe("snd_rawmidi_new failed: %d\n", err);
+               return err;
+       }
+
+       strcpy(g_rmidi->name, "pisound MIDI ");
+       strcat(g_rmidi->name, pisnd_spi_get_serial());
+
+       g_rmidi->info_flags =
+               SNDRV_RAWMIDI_INFO_OUTPUT |
+               SNDRV_RAWMIDI_INFO_INPUT |
+               SNDRV_RAWMIDI_INFO_DUPLEX;
+
+       g_rmidi->ops = &pisnd_global_ops;
+
+       g_rmidi->private_data = (void *)0;
+
+       snd_rawmidi_set_ops(
+               g_rmidi,
+               SNDRV_RAWMIDI_STREAM_OUTPUT,
+               &pisnd_output_ops
+               );
+
+       snd_rawmidi_set_ops(
+               g_rmidi,
+               SNDRV_RAWMIDI_STREAM_INPUT,
+               &pisnd_input_ops
+               );
+
+       return 0;
+}
+
+static void pisnd_midi_uninit(void)
+{
+}
+
+static void *g_recvData;
+static pisnd_spi_recv_cb g_recvCallback;
+
+#define FIFO_SIZE 4096
+
+static char g_serial_num[11];
+static char g_id[25];
+enum { MAX_VERSION_STR_LEN = 6 };
+static char g_fw_version[MAX_VERSION_STR_LEN];
+static char g_hw_version[MAX_VERSION_STR_LEN];
+
+static uint8_t g_ledFlashDuration;
+static bool    g_ledFlashDurationChanged;
+
+DEFINE_KFIFO(spi_fifo_in,  uint8_t, FIFO_SIZE);
+DEFINE_KFIFO(spi_fifo_out, uint8_t, FIFO_SIZE);
+
+static struct gpio_desc *data_available;
+static struct gpio_desc *spi_reset;
+
+static struct spi_device *pisnd_spi_device;
+
+static struct workqueue_struct *pisnd_workqueue;
+static struct work_struct pisnd_work_process;
+
+static void pisnd_work_handler(struct work_struct *work);
+
+static void spi_transfer(const uint8_t *txbuf, uint8_t *rxbuf, int len);
+static uint16_t spi_transfer16(uint16_t val);
+
+static int pisnd_init_workqueues(void)
+{
+       pisnd_workqueue = create_singlethread_workqueue("pisnd_workqueue");
+       INIT_WORK(&pisnd_work_process, pisnd_work_handler);
+
+       return 0;
+}
+
+static void pisnd_uninit_workqueues(void)
+{
+       flush_workqueue(pisnd_workqueue);
+       destroy_workqueue(pisnd_workqueue);
+
+       pisnd_workqueue = NULL;
+}
+
+static bool pisnd_spi_has_more(void)
+{
+       return gpiod_get_value(data_available);
+}
+
+static void pisnd_schedule_process(enum task_e task)
+{
+       if (pisnd_spi_device != NULL &&
+               pisnd_workqueue != NULL &&
+               !work_pending(&pisnd_work_process)
+               ) {
+               printd("schedule: has more = %d\n", pisnd_spi_has_more());
+               if (task == TASK_PROCESS)
+                       queue_work(pisnd_workqueue, &pisnd_work_process);
+       }
+}
+
+static irqreturn_t data_available_interrupt_handler(int irq, void *dev_id)
+{
+       if (irq == gpiod_to_irq(data_available) && pisnd_spi_has_more()) {
+               printd("schedule from irq\n");
+               pisnd_schedule_process(TASK_PROCESS);
+       }
+
+       return IRQ_HANDLED;
+}
+
+static uint16_t spi_transfer16(uint16_t val)
+{
+       uint8_t txbuf[2];
+       uint8_t rxbuf[2];
+
+       if (!pisnd_spi_device) {
+               printe("pisnd_spi_device null, returning\n");
+               return 0;
+       }
+
+       txbuf[0] = val >> 8;
+       txbuf[1] = val & 0xff;
+
+       spi_transfer(txbuf, rxbuf, sizeof(txbuf));
+
+       printd("received: %02x%02x\n", rxbuf[0], rxbuf[1]);
+
+       return (rxbuf[0] << 8) | rxbuf[1];
+}
+
+static void spi_transfer(const uint8_t *txbuf, uint8_t *rxbuf, int len)
+{
+       int err;
+       struct spi_transfer transfer;
+       struct spi_message msg;
+
+       memset(rxbuf, 0, len);
+
+       if (!pisnd_spi_device) {
+               printe("pisnd_spi_device null, returning\n");
+               return;
+       }
+
+       spi_message_init(&msg);
+
+       memset(&transfer, 0, sizeof(transfer));
+
+       transfer.tx_buf = txbuf;
+       transfer.rx_buf = rxbuf;
+       transfer.len = len;
+       transfer.speed_hz = 150000;
+       transfer.delay.value = 10;
+       transfer.delay.unit = SPI_DELAY_UNIT_USECS;
+
+       spi_message_add_tail(&transfer, &msg);
+
+       err = spi_sync(pisnd_spi_device, &msg);
+
+       if (err < 0) {
+               printe("spi_sync error %d\n", err);
+               return;
+       }
+
+       printd("hasMore %d\n", pisnd_spi_has_more());
+}
+
+static int spi_read_bytes(char *dst, size_t length, uint8_t *bytesRead)
+{
+       uint16_t rx;
+       uint8_t size;
+       uint8_t i;
+
+       memset(dst, 0, length);
+       *bytesRead = 0;
+
+       rx = spi_transfer16(0);
+       if (!(rx >> 8))
+               return -EINVAL;
+
+       size = rx & 0xff;
+
+       if (size > length)
+               return -EINVAL;
+
+       for (i = 0; i < size; ++i) {
+               rx = spi_transfer16(0);
+               if (!(rx >> 8))
+                       return -EINVAL;
+
+               dst[i] = rx & 0xff;
+       }
+
+       *bytesRead = i;
+
+       return 0;
+}
+
+static int spi_device_match(struct device *dev, const void *data)
+{
+       struct spi_device *spi = container_of(dev, struct spi_device, dev);
+
+       printd("      %s %s %dkHz %d bits mode=0x%02X\n",
+               spi->modalias, dev_name(dev), spi->max_speed_hz/1000,
+               spi->bits_per_word, spi->mode);
+
+       if (strcmp("pisound-spi", spi->modalias) == 0) {
+               printi("\tFound!\n");
+               return 1;
+       }
+
+       printe("\tNot found!\n");
+       return 0;
+}
+
+static struct spi_device *pisnd_spi_find_device(void)
+{
+       struct device *dev;
+
+       printi("Searching for spi device...\n");
+       dev = bus_find_device(&spi_bus_type, NULL, NULL, spi_device_match);
+       if (dev != NULL)
+               return container_of(dev, struct spi_device, dev);
+       else
+               return NULL;
+}
+
+static void pisnd_work_handler(struct work_struct *work)
+{
+       enum { TRANSFER_SIZE = 4 };
+       enum { PISOUND_OUTPUT_BUFFER_SIZE_MILLIBYTES = 127 * 1000 };
+       enum { MIDI_MILLIBYTES_PER_JIFFIE = (3125 * 1000) / HZ };
+       int out_buffer_used_millibytes = 0;
+       unsigned long now;
+       uint8_t val;
+       uint8_t txbuf[TRANSFER_SIZE];
+       uint8_t rxbuf[TRANSFER_SIZE];
+       uint8_t midibuf[TRANSFER_SIZE];
+       int i, n;
+       bool had_data;
+
+       unsigned long last_transfer_at = jiffies;
+
+       if (work == &pisnd_work_process) {
+               if (pisnd_spi_device == NULL)
+                       return;
+
+               do {
+                       if (g_midi_output_substream &&
+                               kfifo_avail(&spi_fifo_out) >= sizeof(midibuf)) {
+
+                               n = snd_rawmidi_transmit_peek(
+                                       g_midi_output_substream,
+                                       midibuf, sizeof(midibuf)
+                               );
+
+                               if (n > 0) {
+                                       for (i = 0; i < n; ++i)
+                                               kfifo_put(
+                                                       &spi_fifo_out,
+                                                       midibuf[i]
+                                                       );
+                                       snd_rawmidi_transmit_ack(
+                                               g_midi_output_substream,
+                                               i
+                                               );
+                               }
+                       }
+
+                       had_data = false;
+                       memset(txbuf, 0, sizeof(txbuf));
+                       for (i = 0; i < sizeof(txbuf) &&
+                               ((out_buffer_used_millibytes+1000 <
+                               PISOUND_OUTPUT_BUFFER_SIZE_MILLIBYTES) ||
+                               g_ledFlashDurationChanged);
+                               i += 2) {
+
+                               val = 0;
+
+                               if (g_ledFlashDurationChanged) {
+                                       txbuf[i+0] = 0xf0;
+                                       txbuf[i+1] = g_ledFlashDuration;
+                                       g_ledFlashDuration = 0;
+                                       g_ledFlashDurationChanged = false;
+                               } else if (kfifo_get(&spi_fifo_out, &val)) {
+                                       txbuf[i+0] = 0x0f;
+                                       txbuf[i+1] = val;
+                                       out_buffer_used_millibytes += 1000;
+                               }
+                       }
+
+                       spi_transfer(txbuf, rxbuf, sizeof(txbuf));
+                       /* Estimate the Pisound's MIDI output buffer usage, so
+                        * that we don't overflow it. Space in the buffer should
+                        * be becoming available at the UART MIDI byte transfer
+                        * rate.
+                        */
+                       now = jiffies;
+                       if (now != last_transfer_at) {
+                               out_buffer_used_millibytes -=
+                                       (now - last_transfer_at) *
+                                       MIDI_MILLIBYTES_PER_JIFFIE;
+                               if (out_buffer_used_millibytes < 0)
+                                       out_buffer_used_millibytes = 0;
+                               last_transfer_at = now;
+                       }
+
+                       for (i = 0; i < sizeof(rxbuf); i += 2) {
+                               if (rxbuf[i]) {
+                                       kfifo_put(&spi_fifo_in, rxbuf[i+1]);
+                                       if (kfifo_len(&spi_fifo_in) > 16 &&
+                                               g_recvCallback)
+                                               g_recvCallback(g_recvData);
+                                       had_data = true;
+                               }
+                       }
+               } while (had_data
+                       || !kfifo_is_empty(&spi_fifo_out)
+                       || pisnd_spi_has_more()
+                       || g_ledFlashDurationChanged
+                       || out_buffer_used_millibytes != 0
+                       );
+
+               if (!kfifo_is_empty(&spi_fifo_in) && g_recvCallback)
+                       g_recvCallback(g_recvData);
+       }
+}
+
+static int pisnd_spi_gpio_init(struct device *dev)
+{
+       spi_reset = gpiod_get_index(dev, "reset", 1, GPIOD_ASIS);
+       data_available = gpiod_get_index(dev, "data_available", 0, GPIOD_ASIS);
+
+       gpiod_direction_output(spi_reset, 1);
+       gpiod_direction_input(data_available);
+
+       /* Reset the slave. */
+       gpiod_set_value(spi_reset, false);
+       mdelay(1);
+       gpiod_set_value(spi_reset, true);
+
+       /* Give time for spi slave to start. */
+       mdelay(64);
+
+       return 0;
+}
+
+static void pisnd_spi_gpio_uninit(void)
+{
+       gpiod_set_value(spi_reset, false);
+       gpiod_put(spi_reset);
+       spi_reset = NULL;
+
+       gpiod_put(data_available);
+       data_available = NULL;
+}
+
+static int pisnd_spi_gpio_irq_init(struct device *dev)
+{
+       return request_threaded_irq(
+               gpiod_to_irq(data_available), NULL,
+               data_available_interrupt_handler,
+               IRQF_TIMER | IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+               "data_available_int",
+               NULL
+               );
+}
+
+static void pisnd_spi_gpio_irq_uninit(void)
+{
+       free_irq(gpiod_to_irq(data_available), NULL);
+}
+
+static int spi_read_info(void)
+{
+       uint16_t tmp;
+       uint8_t count;
+       uint8_t n;
+       uint8_t i;
+       uint8_t j;
+       char buffer[257];
+       int ret;
+       char *p;
+
+       memset(g_serial_num, 0, sizeof(g_serial_num));
+       memset(g_fw_version, 0, sizeof(g_fw_version));
+       strcpy(g_hw_version, "1.0"); // Assume 1.0 hw version.
+       memset(g_id, 0, sizeof(g_id));
+
+       tmp = spi_transfer16(0);
+
+       if (!(tmp >> 8))
+               return -EINVAL;
+
+       count = tmp & 0xff;
+
+       for (i = 0; i < count; ++i) {
+               memset(buffer, 0, sizeof(buffer));
+               ret = spi_read_bytes(buffer, sizeof(buffer)-1, &n);
+
+               if (ret < 0)
+                       return ret;
+
+               switch (i) {
+               case 0:
+                       if (n != 2)
+                               return -EINVAL;
+
+                       snprintf(
+                               g_fw_version,
+                               MAX_VERSION_STR_LEN,
+                               "%x.%02x",
+                               buffer[0],
+                               buffer[1]
+                               );
+
+                       g_fw_version[MAX_VERSION_STR_LEN-1] = '\0';
+                       break;
+               case 3:
+                       if (n != 2)
+                               return -EINVAL;
+
+                       snprintf(
+                               g_hw_version,
+                               MAX_VERSION_STR_LEN,
+                               "%x.%x",
+                               buffer[0],
+                               buffer[1]
+                       );
+
+                       g_hw_version[MAX_VERSION_STR_LEN-1] = '\0';
+                       break;
+               case 1:
+                       if (n >= sizeof(g_serial_num))
+                               return -EINVAL;
+
+                       memcpy(g_serial_num, buffer, sizeof(g_serial_num));
+                       break;
+               case 2:
+                       {
+                               if (n*2 >= sizeof(g_id))
+                                       return -EINVAL;
+
+                               p = g_id;
+                               for (j = 0; j < n; ++j)
+                                       p += sprintf(p, "%02x", buffer[j]);
+
+                               *p = '\0';
+                       }
+                       break;
+               default:
+                       break;
+               }
+       }
+
+       return 0;
+}
+
+static int pisnd_spi_init(struct device *dev)
+{
+       int ret;
+       struct spi_device *spi;
+
+       memset(g_serial_num, 0, sizeof(g_serial_num));
+       memset(g_id, 0, sizeof(g_id));
+       memset(g_fw_version, 0, sizeof(g_fw_version));
+       memset(g_hw_version, 0, sizeof(g_hw_version));
+
+       spi = pisnd_spi_find_device();
+
+       if (spi != NULL) {
+               printd("initializing spi!\n");
+               pisnd_spi_device = spi;
+               ret = spi_setup(pisnd_spi_device);
+       } else {
+               printe("SPI device not found, deferring!\n");
+               return -EPROBE_DEFER;
+       }
+
+       ret = pisnd_spi_gpio_init(dev);
+
+       if (ret < 0) {
+               printe("SPI GPIO init failed: %d\n", ret);
+               spi_dev_put(pisnd_spi_device);
+               pisnd_spi_device = NULL;
+               pisnd_spi_gpio_uninit();
+               return ret;
+       }
+
+       ret = spi_read_info();
+
+       if (ret < 0) {
+               printe("Reading card info failed: %d\n", ret);
+               spi_dev_put(pisnd_spi_device);
+               pisnd_spi_device = NULL;
+               pisnd_spi_gpio_uninit();
+               return ret;
+       }
+
+       /* Flash the LEDs. */
+       spi_transfer16(0xf008);
+
+       ret = pisnd_spi_gpio_irq_init(dev);
+       if (ret < 0) {
+               printe("SPI irq request failed: %d\n", ret);
+               spi_dev_put(pisnd_spi_device);
+               pisnd_spi_device = NULL;
+               pisnd_spi_gpio_irq_uninit();
+               pisnd_spi_gpio_uninit();
+       }
+
+       ret = pisnd_init_workqueues();
+       if (ret != 0) {
+               printe("Workqueue initialization failed: %d\n", ret);
+               spi_dev_put(pisnd_spi_device);
+               pisnd_spi_device = NULL;
+               pisnd_spi_gpio_irq_uninit();
+               pisnd_spi_gpio_uninit();
+               pisnd_uninit_workqueues();
+               return ret;
+       }
+
+       if (pisnd_spi_has_more()) {
+               printd("data is available, scheduling from init\n");
+               pisnd_schedule_process(TASK_PROCESS);
+       }
+
+       return 0;
+}
+
+static void pisnd_spi_uninit(void)
+{
+       pisnd_uninit_workqueues();
+
+       spi_dev_put(pisnd_spi_device);
+       pisnd_spi_device = NULL;
+
+       pisnd_spi_gpio_irq_uninit();
+       pisnd_spi_gpio_uninit();
+}
+
+static void pisnd_spi_flash_leds(uint8_t duration)
+{
+       g_ledFlashDuration = duration;
+       g_ledFlashDurationChanged = true;
+       printd("schedule from spi_flash_leds\n");
+       pisnd_schedule_process(TASK_PROCESS);
+}
+
+static void pisnd_spi_flush(void)
+{
+       while (!kfifo_is_empty(&spi_fifo_out)) {
+               pisnd_spi_start();
+               flush_workqueue(pisnd_workqueue);
+       }
+}
+
+static void pisnd_spi_start(void)
+{
+       printd("schedule from spi_start\n");
+       pisnd_schedule_process(TASK_PROCESS);
+}
+
+static uint8_t pisnd_spi_recv(uint8_t *buffer, uint8_t length)
+{
+       return kfifo_out(&spi_fifo_in, buffer, length);
+}
+
+static void pisnd_spi_set_callback(pisnd_spi_recv_cb cb, void *data)
+{
+       g_recvData = data;
+       g_recvCallback = cb;
+}
+
+static const char *pisnd_spi_get_serial(void)
+{
+       return g_serial_num;
+}
+
+static const char *pisnd_spi_get_id(void)
+{
+       return g_id;
+}
+
+static const char *pisnd_spi_get_fw_version(void)
+{
+       return g_fw_version;
+}
+
+static const char *pisnd_spi_get_hw_version(void)
+{
+       return g_hw_version;
+}
+
+static const struct of_device_id pisound_of_match[] = {
+       { .compatible = "blokaslabs,pisound", },
+       { .compatible = "blokaslabs,pisound-spi", },
+       {},
+};
+
+enum {
+       SWITCH = 0,
+       VOLUME = 1,
+};
+
+static int pisnd_ctl_info(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_info *uinfo)
+{
+       if (kcontrol->private_value == SWITCH) {
+               uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+               uinfo->count = 1;
+               uinfo->value.integer.min = 0;
+               uinfo->value.integer.max = 1;
+               return 0;
+       } else if (kcontrol->private_value == VOLUME) {
+               uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+               uinfo->count = 1;
+               uinfo->value.integer.min = 0;
+               uinfo->value.integer.max = 100;
+               return 0;
+       }
+       return -EINVAL;
+}
+
+static int pisnd_ctl_get(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_value *ucontrol)
+{
+       if (kcontrol->private_value == SWITCH) {
+               ucontrol->value.integer.value[0] = 1;
+               return 0;
+       } else if (kcontrol->private_value == VOLUME) {
+               ucontrol->value.integer.value[0] = 100;
+               return 0;
+       }
+
+       return -EINVAL;
+}
+
+static struct snd_kcontrol_new pisnd_ctl[] = {
+       {
+               .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .name = "PCM Playback Switch",
+               .index = 0,
+               .private_value = SWITCH,
+               .access = SNDRV_CTL_ELEM_ACCESS_READ,
+               .info = pisnd_ctl_info,
+               .get = pisnd_ctl_get,
+       },
+       {
+               .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .name = "PCM Playback Volume",
+               .index = 0,
+               .private_value = VOLUME,
+               .access = SNDRV_CTL_ELEM_ACCESS_READ,
+               .info = pisnd_ctl_info,
+               .get = pisnd_ctl_get,
+       },
+};
+
+static int pisnd_ctl_init(struct snd_card *card)
+{
+       int err, i;
+
+       for (i = 0; i < ARRAY_SIZE(pisnd_ctl); ++i) {
+               err = snd_ctl_add(card, snd_ctl_new1(&pisnd_ctl[i], NULL));
+               if (err < 0)
+                       return err;
+       }
+
+       return 0;
+}
+
+static int pisnd_ctl_uninit(void)
+{
+       return 0;
+}
+
+static struct gpio_desc *osr0, *osr1, *osr2;
+static struct gpio_desc *reset;
+static struct gpio_desc *button;
+
+static int pisnd_hw_params(
+       struct snd_pcm_substream *substream,
+       struct snd_pcm_hw_params *params
+       )
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+
+       /* Pisound runs on fixed 32 clock counts per channel,
+        * as generated by the master ADC.
+        */
+       snd_soc_dai_set_bclk_ratio(cpu_dai, 32*2);
+
+       printd("rate   = %d\n", params_rate(params));
+       printd("ch     = %d\n", params_channels(params));
+       printd("bits   = %u\n",
+               snd_pcm_format_physical_width(params_format(params)));
+       printd("format = %d\n", params_format(params));
+
+       gpiod_set_value(reset, false);
+
+       switch (params_rate(params)) {
+       case 48000:
+               gpiod_set_value(osr0, true);
+               gpiod_set_value(osr1, false);
+               gpiod_set_value(osr2, false);
+               break;
+       case 96000:
+               gpiod_set_value(osr0, true);
+               gpiod_set_value(osr1, false);
+               gpiod_set_value(osr2, true);
+               break;
+       case 192000:
+               gpiod_set_value(osr0, true);
+               gpiod_set_value(osr1, true);
+               gpiod_set_value(osr2, true);
+               break;
+       default:
+               printe("Unsupported rate %u!\n", params_rate(params));
+               return -EINVAL;
+       }
+
+       gpiod_set_value(reset, true);
+
+       return 0;
+}
+
+static unsigned int rates[3] = {
+       48000, 96000, 192000
+};
+
+static struct snd_pcm_hw_constraint_list constraints_rates = {
+       .count = ARRAY_SIZE(rates),
+       .list = rates,
+       .mask = 0,
+};
+
+static int pisnd_startup(struct snd_pcm_substream *substream)
+{
+       int err = snd_pcm_hw_constraint_list(
+               substream->runtime,
+               0,
+               SNDRV_PCM_HW_PARAM_RATE,
+               &constraints_rates
+               );
+
+       if (err < 0)
+               return err;
+
+       err = snd_pcm_hw_constraint_single(
+               substream->runtime,
+               SNDRV_PCM_HW_PARAM_CHANNELS,
+               2
+               );
+
+       if (err < 0)
+               return err;
+
+       err = snd_pcm_hw_constraint_mask64(
+               substream->runtime,
+               SNDRV_PCM_HW_PARAM_FORMAT,
+               SNDRV_PCM_FMTBIT_S16_LE |
+               SNDRV_PCM_FMTBIT_S24_LE |
+               SNDRV_PCM_FMTBIT_S32_LE
+               );
+
+       if (err < 0)
+               return err;
+
+       return 0;
+}
+
+static struct snd_soc_ops pisnd_ops = {
+       .startup = pisnd_startup,
+       .hw_params = pisnd_hw_params,
+};
+
+SND_SOC_DAILINK_DEFS(pisnd,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_DUMMY()),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link pisnd_dai[] = {
+       {
+               .name           = "pisound",
+               .stream_name    = "pisound",
+               .dai_fmt        =
+                       SND_SOC_DAIFMT_I2S |
+                       SND_SOC_DAIFMT_NB_NF |
+                       SND_SOC_DAIFMT_CBM_CFM,
+               .ops            = &pisnd_ops,
+               SND_SOC_DAILINK_REG(pisnd),
+       },
+};
+
+static int pisnd_card_probe(struct snd_soc_card *card)
+{
+       int err = pisnd_midi_init(card->snd_card);
+
+       if (err < 0) {
+               printe("pisnd_midi_init failed: %d\n", err);
+               return err;
+       }
+
+       err = pisnd_ctl_init(card->snd_card);
+       if (err < 0) {
+               printe("pisnd_ctl_init failed: %d\n", err);
+               return err;
+       }
+
+       return 0;
+}
+
+static int pisnd_card_remove(struct snd_soc_card *card)
+{
+       pisnd_ctl_uninit();
+       pisnd_midi_uninit();
+       return 0;
+}
+
+static struct snd_soc_card pisnd_card = {
+       .name         = "pisound",
+       .owner        = THIS_MODULE,
+       .dai_link     = pisnd_dai,
+       .num_links    = ARRAY_SIZE(pisnd_dai),
+       .probe        = pisnd_card_probe,
+       .remove       = pisnd_card_remove,
+};
+
+static int pisnd_init_gpio(struct device *dev)
+{
+       osr0 = gpiod_get_index(dev, "osr", 0, GPIOD_ASIS);
+       osr1 = gpiod_get_index(dev, "osr", 1, GPIOD_ASIS);
+       osr2 = gpiod_get_index(dev, "osr", 2, GPIOD_ASIS);
+
+       reset = gpiod_get_index(dev, "reset", 0, GPIOD_ASIS);
+
+       button = gpiod_get_index(dev, "button", 0, GPIOD_ASIS);
+
+       gpiod_direction_output(osr0,  1);
+       gpiod_direction_output(osr1,  1);
+       gpiod_direction_output(osr2,  1);
+       gpiod_direction_output(reset, 1);
+
+       gpiod_set_value(reset, false);
+       gpiod_set_value(osr0,   true);
+       gpiod_set_value(osr1,  false);
+       gpiod_set_value(osr2,  false);
+       gpiod_set_value(reset,  true);
+
+       gpiod_export(button, false);
+
+       return 0;
+}
+
+static int pisnd_uninit_gpio(void)
+{
+       int i;
+
+       struct gpio_desc **gpios[] = {
+               &osr0, &osr1, &osr2, &reset, &button,
+       };
+
+       gpiod_unexport(button);
+
+       for (i = 0; i < ARRAY_SIZE(gpios); ++i) {
+               if (*gpios[i] == NULL) {
+                       printd("weird, GPIO[%d] is NULL already\n", i);
+                       continue;
+               }
+
+               gpiod_put(*gpios[i]);
+               *gpios[i] = NULL;
+       }
+
+       return 0;
+}
+
+static struct kobject *pisnd_kobj;
+
+static ssize_t pisnd_serial_show(
+       struct kobject *kobj,
+       struct kobj_attribute *attr,
+       char *buf
+       )
+{
+       return sprintf(buf, "%s\n", pisnd_spi_get_serial());
+}
+
+static ssize_t pisnd_id_show(
+       struct kobject *kobj,
+       struct kobj_attribute *attr,
+       char *buf
+       )
+{
+       return sprintf(buf, "%s\n", pisnd_spi_get_id());
+}
+
+static ssize_t pisnd_fw_version_show(
+       struct kobject *kobj,
+       struct kobj_attribute *attr,
+       char *buf
+       )
+{
+       return sprintf(buf, "%s\n", pisnd_spi_get_fw_version());
+}
+
+static ssize_t pisnd_hw_version_show(
+       struct kobject *kobj,
+       struct kobj_attribute *attr,
+       char *buf
+)
+{
+       return sprintf(buf, "%s\n", pisnd_spi_get_hw_version());
+}
+
+static ssize_t pisnd_led_store(
+       struct kobject *kobj,
+       struct kobj_attribute *attr,
+       const char *buf,
+       size_t length
+       )
+{
+       uint32_t timeout;
+       int err;
+
+       err = kstrtou32(buf, 10, &timeout);
+
+       if (err == 0 && timeout <= 255)
+               pisnd_spi_flash_leds(timeout);
+
+       return length;
+}
+
+static struct kobj_attribute pisnd_serial_attribute =
+       __ATTR(serial, 0444, pisnd_serial_show, NULL);
+static struct kobj_attribute pisnd_id_attribute =
+       __ATTR(id, 0444, pisnd_id_show, NULL);
+static struct kobj_attribute pisnd_fw_version_attribute =
+       __ATTR(version, 0444, pisnd_fw_version_show, NULL);
+static struct kobj_attribute pisnd_hw_version_attribute =
+__ATTR(hw_version, 0444, pisnd_hw_version_show, NULL);
+static struct kobj_attribute pisnd_led_attribute =
+       __ATTR(led, 0644, NULL, pisnd_led_store);
+
+static struct attribute *attrs[] = {
+       &pisnd_serial_attribute.attr,
+       &pisnd_id_attribute.attr,
+       &pisnd_fw_version_attribute.attr,
+       &pisnd_hw_version_attribute.attr,
+       &pisnd_led_attribute.attr,
+       NULL
+};
+
+static struct attribute_group attr_group = { .attrs = attrs };
+
+static int pisnd_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+       int i;
+
+       ret = pisnd_spi_init(&pdev->dev);
+       if (ret < 0) {
+               printe("pisnd_spi_init failed: %d\n", ret);
+               return ret;
+       }
+
+       printi("Detected Pisound card:\n");
+       printi("\tSerial:           %s\n", pisnd_spi_get_serial());
+       printi("\tFirmware Version: %s\n", pisnd_spi_get_fw_version());
+       printi("\tHardware Version: %s\n", pisnd_spi_get_hw_version());
+       printi("\tId:               %s\n", pisnd_spi_get_id());
+
+       pisnd_kobj = kobject_create_and_add("pisound", kernel_kobj);
+       if (!pisnd_kobj) {
+               pisnd_spi_uninit();
+               return -ENOMEM;
+       }
+
+       ret = sysfs_create_group(pisnd_kobj, &attr_group);
+       if (ret < 0) {
+               pisnd_spi_uninit();
+               kobject_put(pisnd_kobj);
+               return -ENOMEM;
+       }
+
+       pisnd_init_gpio(&pdev->dev);
+       pisnd_card.dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+
+               i2s_node = of_parse_phandle(
+                       pdev->dev.of_node,
+                       "i2s-controller",
+                       0
+                       );
+
+               for (i = 0; i < pisnd_card.num_links; ++i) {
+                       struct snd_soc_dai_link *dai = &pisnd_dai[i];
+
+                       if (i2s_node) {
+                               dai->cpus->dai_name = NULL;
+                               dai->cpus->of_node = i2s_node;
+                               dai->platforms->name = NULL;
+                               dai->platforms->of_node = i2s_node;
+                               dai->stream_name = pisnd_spi_get_serial();
+                       }
+               }
+       }
+
+       ret = snd_soc_register_card(&pisnd_card);
+
+       if (ret < 0) {
+               if (ret != -EPROBE_DEFER)
+                       printe("snd_soc_register_card() failed: %d\n", ret);
+               pisnd_uninit_gpio();
+               kobject_put(pisnd_kobj);
+               pisnd_spi_uninit();
+       }
+
+       return ret;
+}
+
+static int pisnd_remove(struct platform_device *pdev)
+{
+       printi("Unloading.\n");
+
+       if (pisnd_kobj) {
+               kobject_put(pisnd_kobj);
+               pisnd_kobj = NULL;
+       }
+
+       pisnd_spi_uninit();
+
+       /* Turn off */
+       gpiod_set_value(reset, false);
+       pisnd_uninit_gpio();
+
+       snd_soc_unregister_card(&pisnd_card);
+       return 0;
+}
+
+MODULE_DEVICE_TABLE(of, pisound_of_match);
+
+static struct platform_driver pisnd_driver = {
+       .driver = {
+               .name           = "snd-rpi-pisound",
+               .owner          = THIS_MODULE,
+               .of_match_table = pisound_of_match,
+       },
+       .probe              = pisnd_probe,
+       .remove             = pisnd_remove,
+};
+
+module_platform_driver(pisnd_driver);
+
+MODULE_AUTHOR("Giedrius Trainavicius <giedrius@blokas.io>");
+MODULE_DESCRIPTION("ASoC Driver for Pisound, https://blokas.io/pisound");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/rpi-cirrus.c
@@ -0,0 +1,1025 @@
+/*
+ * ASoC machine driver for Cirrus Logic Audio Card
+ * (with WM5102 and WM8804 codecs)
+ *
+ * Copyright 2015-2017 Matthias Reichl <hias@horus.com>
+ *
+ * Based on rpi-cirrus-sound-pi driver (c) Wolfson / Cirrus Logic Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/list.h>
+#include <linux/delay.h>
+#include <sound/pcm_params.h>
+
+#include <linux/mfd/arizona/registers.h>
+
+#include "../codecs/wm5102.h"
+#include "../codecs/wm8804.h"
+
+#define WM8804_CLKOUT_HZ 12000000
+
+#define RPI_CIRRUS_DEFAULT_RATE 44100
+#define WM5102_MAX_SYSCLK_1 49152000 /* max sysclk for 4K family */
+#define WM5102_MAX_SYSCLK_2 45158400 /* max sysclk for 11.025K family */
+
+static inline unsigned int calc_sysclk(unsigned int rate)
+{
+       return (rate % 4000) ? WM5102_MAX_SYSCLK_2 : WM5102_MAX_SYSCLK_1;
+}
+
+enum {
+       DAI_WM5102 = 0,
+       DAI_WM8804,
+};
+
+struct rpi_cirrus_priv {
+       /* mutex for synchronzing FLL1 access with DAPM */
+       struct mutex lock;
+       unsigned int card_rate;
+       int sync_path_enable;
+       int fll1_freq; /* negative means RefClock in spdif rx case */
+
+       /* track hw params/free for substreams */
+       unsigned int params_set;
+       unsigned int min_rate_idx, max_rate_idx;
+       unsigned char iec958_status[4];
+};
+
+/* helper functions */
+static inline struct snd_soc_pcm_runtime *get_wm5102_runtime(
+       struct snd_soc_card *card) {
+       return snd_soc_get_pcm_runtime(card, &card->dai_link[DAI_WM5102]);
+}
+
+static inline struct snd_soc_pcm_runtime *get_wm8804_runtime(
+       struct snd_soc_card *card) {
+       return snd_soc_get_pcm_runtime(card, &card->dai_link[DAI_WM8804]);
+}
+
+
+struct rate_info {
+       unsigned int value;
+       char *text;
+};
+
+static struct rate_info min_rates[] = {
+       {     0, "off"},
+       { 32000, "32kHz"},
+       { 44100, "44.1kHz"}
+};
+
+#define NUM_MIN_RATES ARRAY_SIZE(min_rates)
+
+static int rpi_cirrus_min_rate_info(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_info *uinfo)
+{
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+       uinfo->count = 1;
+       uinfo->value.enumerated.items = NUM_MIN_RATES;
+
+       if (uinfo->value.enumerated.item >= NUM_MIN_RATES)
+               uinfo->value.enumerated.item = NUM_MIN_RATES - 1;
+       strcpy(uinfo->value.enumerated.name,
+               min_rates[uinfo->value.enumerated.item].text);
+       return 0;
+}
+
+static int rpi_cirrus_min_rate_get(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
+
+       ucontrol->value.enumerated.item[0] = priv->min_rate_idx;
+       return 0;
+}
+
+static int rpi_cirrus_min_rate_put(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
+       int changed = 0;
+
+       if (priv->min_rate_idx != ucontrol->value.enumerated.item[0]) {
+               changed = 1;
+               priv->min_rate_idx = ucontrol->value.enumerated.item[0];
+       }
+
+       return changed;
+}
+
+static struct rate_info max_rates[] = {
+       {     0, "off"},
+       { 48000, "48kHz"},
+       { 96000, "96kHz"}
+};
+
+#define NUM_MAX_RATES ARRAY_SIZE(max_rates)
+
+static int rpi_cirrus_max_rate_info(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_info *uinfo)
+{
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+       uinfo->count = 1;
+       uinfo->value.enumerated.items = NUM_MAX_RATES;
+       if (uinfo->value.enumerated.item >= NUM_MAX_RATES)
+               uinfo->value.enumerated.item = NUM_MAX_RATES - 1;
+       strcpy(uinfo->value.enumerated.name,
+               max_rates[uinfo->value.enumerated.item].text);
+       return 0;
+}
+
+static int rpi_cirrus_max_rate_get(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
+
+       ucontrol->value.enumerated.item[0] = priv->max_rate_idx;
+       return 0;
+}
+
+static int rpi_cirrus_max_rate_put(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
+       int changed = 0;
+
+       if (priv->max_rate_idx != ucontrol->value.enumerated.item[0]) {
+               changed = 1;
+               priv->max_rate_idx = ucontrol->value.enumerated.item[0];
+       }
+
+       return changed;
+}
+
+static int rpi_cirrus_spdif_info(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_info *uinfo)
+{
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+       uinfo->count = 1;
+       return 0;
+}
+
+static int rpi_cirrus_spdif_playback_get(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
+       int i;
+
+       for (i = 0; i < 4; i++)
+               ucontrol->value.iec958.status[i] = priv->iec958_status[i];
+
+       return 0;
+}
+
+static int rpi_cirrus_spdif_playback_put(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_component *wm8804_component =
+               asoc_rtd_to_codec(get_wm8804_runtime(card), 0)->component;
+       struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
+       unsigned char *stat = priv->iec958_status;
+       unsigned char *ctrl_stat = ucontrol->value.iec958.status;
+       unsigned int mask;
+       int i, changed = 0;
+
+       for (i = 0; i < 4; i++) {
+               mask = (i == 3) ? 0x3f : 0xff;
+               if ((ctrl_stat[i] & mask) != (stat[i] & mask)) {
+                       changed = 1;
+                       stat[i] = ctrl_stat[i] & mask;
+                       snd_soc_component_update_bits(wm8804_component,
+                               WM8804_SPDTX1 + i, mask, stat[i]);
+               }
+       }
+
+       return changed;
+}
+
+static int rpi_cirrus_spdif_mask_get(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_value *ucontrol)
+{
+       ucontrol->value.iec958.status[0] = 0xff;
+       ucontrol->value.iec958.status[1] = 0xff;
+       ucontrol->value.iec958.status[2] = 0xff;
+       ucontrol->value.iec958.status[3] = 0x3f;
+
+       return 0;
+}
+
+static int rpi_cirrus_spdif_capture_get(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_component *wm8804_component =
+               asoc_rtd_to_codec(get_wm8804_runtime(card), 0)->component;
+       unsigned int val, mask;
+       int i;
+
+       for (i = 0; i < 4; i++) {
+               val = snd_soc_component_read(wm8804_component,
+                       WM8804_RXCHAN1 + i);
+               mask = (i == 3) ? 0x3f : 0xff;
+               ucontrol->value.iec958.status[i] = val & mask;
+       }
+
+       return 0;
+}
+
+#define SPDIF_FLAG_CTRL(desc, reg, bit, invert) \
+{ \
+               .access =  SNDRV_CTL_ELEM_ACCESS_READ \
+                          | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
+               .iface =   SNDRV_CTL_ELEM_IFACE_MIXER, \
+               .name =    SNDRV_CTL_NAME_IEC958("", CAPTURE, NONE) \
+                               desc " Flag", \
+               .info =    snd_ctl_boolean_mono_info, \
+               .get =     rpi_cirrus_spdif_status_flag_get, \
+               .private_value = \
+                       (bit) | ((reg) << 8) | ((invert) << 16) \
+}
+
+static int rpi_cirrus_spdif_status_flag_get(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_component *wm8804_component =
+               asoc_rtd_to_codec(get_wm8804_runtime(card), 0)->component;
+
+       unsigned int bit = kcontrol->private_value & 0xff;
+       unsigned int reg = (kcontrol->private_value >> 8) & 0xff;
+       unsigned int invert = (kcontrol->private_value >> 16) & 0xff;
+       unsigned int val;
+       bool flag;
+
+       val = snd_soc_component_read(wm8804_component, reg);
+
+       flag = val & (1 << bit);
+
+       ucontrol->value.integer.value[0] = invert ? !flag : flag;
+
+       return 0;
+}
+
+static const char * const recovered_frequency_texts[] = {
+       "176.4/192 kHz",
+       "88.2/96 kHz",
+       "44.1/48 kHz",
+       "32 kHz"
+};
+
+#define NUM_RECOVERED_FREQUENCIES \
+       ARRAY_SIZE(recovered_frequency_texts)
+
+static int rpi_cirrus_recovered_frequency_info(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_info *uinfo)
+{
+       uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+       uinfo->count = 1;
+       uinfo->value.enumerated.items = NUM_RECOVERED_FREQUENCIES;
+       if (uinfo->value.enumerated.item >= NUM_RECOVERED_FREQUENCIES)
+               uinfo->value.enumerated.item = NUM_RECOVERED_FREQUENCIES - 1;
+       strcpy(uinfo->value.enumerated.name,
+               recovered_frequency_texts[uinfo->value.enumerated.item]);
+       return 0;
+}
+
+static int rpi_cirrus_recovered_frequency_get(struct snd_kcontrol *kcontrol,
+       struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_component *wm8804_component =
+               asoc_rtd_to_codec(get_wm8804_runtime(card), 0)->component;
+       unsigned int val;
+
+       val = snd_soc_component_read(wm8804_component, WM8804_SPDSTAT);
+
+       ucontrol->value.enumerated.item[0] = (val >> 4) & 0x03;
+       return 0;
+}
+
+static const struct snd_kcontrol_new rpi_cirrus_controls[] = {
+       {
+               .iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
+               .name =    "Min Sample Rate",
+               .info =    rpi_cirrus_min_rate_info,
+               .get =     rpi_cirrus_min_rate_get,
+               .put =     rpi_cirrus_min_rate_put,
+       },
+       {
+               .iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
+               .name =    "Max Sample Rate",
+               .info =    rpi_cirrus_max_rate_info,
+               .get =     rpi_cirrus_max_rate_get,
+               .put =     rpi_cirrus_max_rate_put,
+       },
+       {
+               .iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
+               .name =    SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
+               .info =    rpi_cirrus_spdif_info,
+               .get =     rpi_cirrus_spdif_playback_get,
+               .put =     rpi_cirrus_spdif_playback_put,
+       },
+       {
+               .access =  SNDRV_CTL_ELEM_ACCESS_READ
+                          | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+               .iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
+               .name =    SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
+               .info =    rpi_cirrus_spdif_info,
+               .get =     rpi_cirrus_spdif_capture_get,
+       },
+       {
+               .access =  SNDRV_CTL_ELEM_ACCESS_READ,
+               .iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
+               .name =    SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
+               .info =    rpi_cirrus_spdif_info,
+               .get =     rpi_cirrus_spdif_mask_get,
+       },
+       {
+               .access =  SNDRV_CTL_ELEM_ACCESS_READ
+                          | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+               .iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
+               .name =    SNDRV_CTL_NAME_IEC958("", CAPTURE, NONE)
+                               "Recovered Frequency",
+               .info =    rpi_cirrus_recovered_frequency_info,
+               .get =     rpi_cirrus_recovered_frequency_get,
+       },
+       SPDIF_FLAG_CTRL("Audio", WM8804_SPDSTAT, 0, 1),
+       SPDIF_FLAG_CTRL("Non-PCM", WM8804_SPDSTAT, 1, 0),
+       SPDIF_FLAG_CTRL("Copyright", WM8804_SPDSTAT, 2, 1),
+       SPDIF_FLAG_CTRL("De-Emphasis", WM8804_SPDSTAT, 3, 0),
+       SPDIF_FLAG_CTRL("Lock", WM8804_SPDSTAT, 6, 1),
+       SPDIF_FLAG_CTRL("Invalid", WM8804_INTSTAT, 1, 0),
+       SPDIF_FLAG_CTRL("TransErr", WM8804_INTSTAT, 3, 0),
+};
+
+static const char * const linein_micbias_texts[] = {
+       "off", "on",
+};
+
+static SOC_ENUM_SINGLE_VIRT_DECL(linein_micbias_enum,
+       linein_micbias_texts);
+
+static const struct snd_kcontrol_new linein_micbias_mux =
+       SOC_DAPM_ENUM("Route", linein_micbias_enum);
+
+static int rpi_cirrus_spdif_rx_enable_event(struct snd_soc_dapm_widget *w,
+       struct snd_kcontrol *kcontrol, int event);
+
+const struct snd_soc_dapm_widget rpi_cirrus_dapm_widgets[] = {
+       SND_SOC_DAPM_MIC("DMIC", NULL),
+       SND_SOC_DAPM_MIC("Headset Mic", NULL),
+       SND_SOC_DAPM_INPUT("Line Input"),
+       SND_SOC_DAPM_MIC("Line Input with Micbias", NULL),
+       SND_SOC_DAPM_MUX("Line Input Micbias", SND_SOC_NOPM, 0, 0,
+               &linein_micbias_mux),
+       SND_SOC_DAPM_INPUT("dummy SPDIF in"),
+       SND_SOC_DAPM_PGA_E("dummy SPDIFRX", SND_SOC_NOPM, 0, 0, NULL, 0,
+               rpi_cirrus_spdif_rx_enable_event,
+               SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+       SND_SOC_DAPM_INPUT("Dummy Input"),
+       SND_SOC_DAPM_OUTPUT("Dummy Output"),
+};
+
+const struct snd_soc_dapm_route rpi_cirrus_dapm_routes[] = {
+       { "IN1L", NULL, "Headset Mic" },
+       { "IN1R", NULL, "Headset Mic" },
+       { "Headset Mic", NULL, "MICBIAS1" },
+
+       { "IN2L", NULL, "DMIC" },
+       { "IN2R", NULL, "DMIC" },
+       { "DMIC", NULL, "MICBIAS2" },
+
+       { "IN3L", NULL, "Line Input Micbias" },
+       { "IN3R", NULL, "Line Input Micbias" },
+
+       { "Line Input Micbias", "off", "Line Input" },
+       { "Line Input Micbias", "on", "Line Input with Micbias" },
+
+       /* Make sure MICVDD is enabled, otherwise we get noise */
+       { "Line Input", NULL, "MICVDD" },
+       { "Line Input with Micbias", NULL, "MICBIAS3" },
+
+       /* Dummy routes to check whether SPDIF RX is enabled or not */
+       {"dummy SPDIFRX", NULL, "dummy SPDIF in"},
+       {"AIFTX", NULL, "dummy SPDIFRX"},
+
+       /*
+        * Dummy routes to keep wm5102 from staying off on
+        * playback/capture if all mixers are off.
+        */
+       { "Dummy Output", NULL, "AIF1RX1" },
+       { "Dummy Output", NULL, "AIF1RX2" },
+       { "AIF1TX1", NULL, "Dummy Input" },
+       { "AIF1TX2", NULL, "Dummy Input" },
+};
+
+static int rpi_cirrus_clear_flls(struct snd_soc_card *card,
+       struct snd_soc_component *wm5102_component) {
+
+       int ret1, ret2;
+
+       ret1 = snd_soc_component_set_pll(wm5102_component,
+               WM5102_FLL1, ARIZONA_FLL_SRC_NONE, 0, 0);
+       ret2 = snd_soc_component_set_pll(wm5102_component,
+               WM5102_FLL1_REFCLK, ARIZONA_FLL_SRC_NONE, 0, 0);
+
+       if (ret1) {
+               dev_warn(card->dev,
+                       "setting FLL1 to zero failed: %d\n", ret1);
+               return ret1;
+       }
+       if (ret2) {
+               dev_warn(card->dev,
+                       "setting FLL1_REFCLK to zero failed: %d\n", ret2);
+               return ret2;
+       }
+       return 0;
+}
+
+static int rpi_cirrus_set_fll(struct snd_soc_card *card,
+       struct snd_soc_component *wm5102_component, unsigned int clk_freq)
+{
+       int ret = snd_soc_component_set_pll(wm5102_component,
+               WM5102_FLL1,
+               ARIZONA_CLK_SRC_MCLK1,
+               WM8804_CLKOUT_HZ,
+               clk_freq);
+       if (ret)
+               dev_err(card->dev, "Failed to set FLL1 to %d: %d\n",
+                       clk_freq, ret);
+
+       usleep_range(1000, 2000);
+       return ret;
+}
+
+static int rpi_cirrus_set_fll_refclk(struct snd_soc_card *card,
+       struct snd_soc_component *wm5102_component,
+       unsigned int clk_freq, unsigned int aif2_freq)
+{
+       int ret = snd_soc_component_set_pll(wm5102_component,
+               WM5102_FLL1_REFCLK,
+               ARIZONA_CLK_SRC_MCLK1,
+               WM8804_CLKOUT_HZ,
+               clk_freq);
+       if (ret) {
+               dev_err(card->dev,
+                       "Failed to set FLL1_REFCLK to %d: %d\n",
+                       clk_freq, ret);
+               return ret;
+       }
+
+       ret = snd_soc_component_set_pll(wm5102_component,
+               WM5102_FLL1,
+               ARIZONA_CLK_SRC_AIF2BCLK,
+               aif2_freq, clk_freq);
+       if (ret)
+               dev_err(card->dev,
+                       "Failed to set FLL1 with Sync Clock %d to %d: %d\n",
+                       aif2_freq, clk_freq, ret);
+
+       usleep_range(1000, 2000);
+       return ret;
+}
+
+static int rpi_cirrus_spdif_rx_enable_event(struct snd_soc_dapm_widget *w,
+       struct snd_kcontrol *kcontrol, int event)
+{
+       struct snd_soc_card *card = w->dapm->card;
+       struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
+       struct snd_soc_component *wm5102_component =
+               asoc_rtd_to_codec(get_wm5102_runtime(card), 0)->component;
+
+       unsigned int clk_freq, aif2_freq;
+       int ret = 0;
+
+       switch (event) {
+       case SND_SOC_DAPM_POST_PMU:
+               mutex_lock(&priv->lock);
+
+               /* Enable sync path in case of SPDIF capture use case */
+
+               clk_freq = calc_sysclk(priv->card_rate);
+               aif2_freq = 64 * priv->card_rate;
+
+               dev_dbg(card->dev,
+                       "spdif_rx: changing FLL1 to use Ref Clock clk: %d spdif: %d\n",
+                       clk_freq, aif2_freq);
+
+               ret = rpi_cirrus_clear_flls(card, wm5102_component);
+               if (ret) {
+                       dev_err(card->dev, "spdif_rx: failed to clear FLLs\n");
+                       goto out;
+               }
+
+               ret = rpi_cirrus_set_fll_refclk(card, wm5102_component,
+                       clk_freq, aif2_freq);
+
+               if (ret) {
+                       dev_err(card->dev, "spdif_rx: failed to set FLLs\n");
+                       goto out;
+               }
+
+               /* set to negative to indicate we're doing spdif rx */
+               priv->fll1_freq = -clk_freq;
+               priv->sync_path_enable = 1;
+               break;
+
+       case SND_SOC_DAPM_POST_PMD:
+               mutex_lock(&priv->lock);
+               priv->sync_path_enable = 0;
+               break;
+
+       default:
+               return 0;
+       }
+
+out:
+       mutex_unlock(&priv->lock);
+       return ret;
+}
+
+static int rpi_cirrus_set_bias_level(struct snd_soc_card *card,
+       struct snd_soc_dapm_context *dapm,
+       enum snd_soc_bias_level level)
+{
+       struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
+       struct snd_soc_pcm_runtime *wm5102_runtime = get_wm5102_runtime(card);
+       struct snd_soc_component *wm5102_component =
+               asoc_rtd_to_codec(wm5102_runtime, 0)->component;
+
+       int ret = 0;
+       unsigned int clk_freq;
+
+       if (dapm->dev != asoc_rtd_to_codec(wm5102_runtime, 0)->dev)
+               return 0;
+
+       switch (level) {
+       case SND_SOC_BIAS_PREPARE:
+               if (dapm->bias_level == SND_SOC_BIAS_ON)
+                       break;
+
+               mutex_lock(&priv->lock);
+
+               if (!priv->sync_path_enable) {
+                       clk_freq = calc_sysclk(priv->card_rate);
+
+                       dev_dbg(card->dev,
+                               "set_bias: changing FLL1 from %d to %d\n",
+                               priv->fll1_freq, clk_freq);
+
+                       ret = rpi_cirrus_set_fll(card,
+                               wm5102_component, clk_freq);
+                       if (ret)
+                               dev_err(card->dev,
+                                       "set_bias: Failed to set FLL1\n");
+                       else
+                               priv->fll1_freq = clk_freq;
+               }
+               mutex_unlock(&priv->lock);
+               break;
+       default:
+               break;
+       }
+
+       return ret;
+}
+
+static int rpi_cirrus_set_bias_level_post(struct snd_soc_card *card,
+       struct snd_soc_dapm_context *dapm,
+       enum snd_soc_bias_level level)
+{
+       struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
+       struct snd_soc_pcm_runtime *wm5102_runtime = get_wm5102_runtime(card);
+       struct snd_soc_component *wm5102_component =
+               asoc_rtd_to_codec(wm5102_runtime, 0)->component;
+
+       if (dapm->dev != asoc_rtd_to_codec(wm5102_runtime, 0)->dev)
+               return 0;
+
+       switch (level) {
+       case SND_SOC_BIAS_STANDBY:
+               mutex_lock(&priv->lock);
+
+               dev_dbg(card->dev,
+                       "set_bias_post: changing FLL1 from %d to off\n",
+                               priv->fll1_freq);
+
+               if (rpi_cirrus_clear_flls(card, wm5102_component))
+                       dev_err(card->dev,
+                               "set_bias_post: failed to clear FLLs\n");
+               else
+                       priv->fll1_freq = 0;
+
+               mutex_unlock(&priv->lock);
+
+               break;
+       default:
+               break;
+       }
+
+       return 0;
+}
+
+static int rpi_cirrus_set_wm8804_pll(struct snd_soc_card *card,
+       struct snd_soc_dai *wm8804_dai, unsigned int rate)
+{
+       int ret;
+
+       /* use 256fs */
+       unsigned int clk_freq = rate * 256;
+
+       ret = snd_soc_dai_set_pll(wm8804_dai, 0, 0,
+               WM8804_CLKOUT_HZ, clk_freq);
+       if (ret) {
+               dev_err(card->dev,
+                       "Failed to set WM8804 PLL to %d: %d\n", clk_freq, ret);
+               return ret;
+       }
+
+       /* Set MCLK as PLL Output */
+       ret = snd_soc_dai_set_sysclk(wm8804_dai,
+               WM8804_TX_CLKSRC_PLL, clk_freq, 0);
+       if (ret) {
+               dev_err(card->dev,
+                       "Failed to set MCLK as PLL Output: %d\n", ret);
+               return ret;
+       }
+
+       return ret;
+}
+
+static int rpi_cirrus_startup(struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_card *card = rtd->card;
+       struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
+       unsigned int min_rate = min_rates[priv->min_rate_idx].value;
+       unsigned int max_rate = max_rates[priv->max_rate_idx].value;
+
+       if (min_rate || max_rate) {
+               if (max_rate == 0)
+                       max_rate = UINT_MAX;
+
+               dev_dbg(card->dev,
+                       "startup: limiting rate to %u-%u\n",
+                       min_rate, max_rate);
+
+               snd_pcm_hw_constraint_minmax(substream->runtime,
+                       SNDRV_PCM_HW_PARAM_RATE, min_rate, max_rate);
+       }
+
+       return 0;
+}
+
+static struct snd_soc_pcm_stream rpi_cirrus_dai_link2_params = {
+       .formats = SNDRV_PCM_FMTBIT_S24_LE,
+       .channels_min = 2,
+       .channels_max = 2,
+       .rate_min = RPI_CIRRUS_DEFAULT_RATE,
+       .rate_max = RPI_CIRRUS_DEFAULT_RATE,
+};
+
+static int rpi_cirrus_hw_params(struct snd_pcm_substream *substream,
+       struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_card *card = rtd->card;
+       struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
+       struct snd_soc_dai *bcm_i2s_dai = asoc_rtd_to_cpu(rtd, 0);
+       struct snd_soc_component *wm5102_component = asoc_rtd_to_codec(rtd, 0)->component;
+       struct snd_soc_dai *wm8804_dai = asoc_rtd_to_codec(get_wm8804_runtime(card), 0);
+
+       int ret;
+
+       unsigned int width = snd_pcm_format_physical_width(
+               params_format(params));
+       unsigned int rate = params_rate(params);
+       unsigned int clk_freq = calc_sysclk(rate);
+
+       mutex_lock(&priv->lock);
+
+       dev_dbg(card->dev, "hw_params: setting rate to %d\n", rate);
+
+       ret = snd_soc_dai_set_bclk_ratio(bcm_i2s_dai, 2 * width);
+       if (ret) {
+               dev_err(card->dev, "set_bclk_ratio failed: %d\n", ret);
+               goto out;
+       }
+
+       ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(rtd, 0), 0x03, 0x03, 2, width);
+       if (ret) {
+               dev_err(card->dev, "set_tdm_slot failed: %d\n", ret);
+               goto out;
+       }
+
+       /* WM8804 supports sample rates from 32k only */
+       if (rate >= 32000) {
+               ret = rpi_cirrus_set_wm8804_pll(card, wm8804_dai, rate);
+               if (ret)
+                       goto out;
+       }
+
+       ret = snd_soc_component_set_sysclk(wm5102_component,
+               ARIZONA_CLK_SYSCLK,
+               ARIZONA_CLK_SRC_FLL1,
+               clk_freq,
+               SND_SOC_CLOCK_IN);
+       if (ret) {
+               dev_err(card->dev, "Failed to set SYSCLK: %d\n", ret);
+               goto out;
+       }
+
+       if ((priv->fll1_freq > 0) && (priv->fll1_freq != clk_freq)) {
+               dev_dbg(card->dev,
+                       "hw_params: changing FLL1 from %d to %d\n",
+                       priv->fll1_freq, clk_freq);
+
+               if (rpi_cirrus_clear_flls(card, wm5102_component)) {
+                       dev_err(card->dev, "hw_params: failed to clear FLLs\n");
+                       goto out;
+               }
+
+               if (rpi_cirrus_set_fll(card, wm5102_component, clk_freq)) {
+                       dev_err(card->dev, "hw_params: failed to set FLL\n");
+                       goto out;
+               }
+
+               priv->fll1_freq = clk_freq;
+       }
+
+       priv->card_rate = rate;
+       rpi_cirrus_dai_link2_params.rate_min = rate;
+       rpi_cirrus_dai_link2_params.rate_max = rate;
+
+       priv->params_set |= 1 << substream->stream;
+
+out:
+       mutex_unlock(&priv->lock);
+
+       return ret;
+}
+
+static int rpi_cirrus_hw_free(struct snd_pcm_substream *substream)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_card *card = rtd->card;
+       struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
+       struct snd_soc_component *wm5102_component = asoc_rtd_to_codec(rtd, 0)->component;
+       int ret;
+       unsigned int old_params_set = priv->params_set;
+
+       priv->params_set &= ~(1 << substream->stream);
+
+       /* disable sysclk if this was the last open stream */
+       if (priv->params_set == 0 && old_params_set) {
+               dev_dbg(card->dev,
+                       "hw_free: Setting SYSCLK to Zero\n");
+
+               ret = snd_soc_component_set_sysclk(wm5102_component,
+                       ARIZONA_CLK_SYSCLK,
+                       ARIZONA_CLK_SRC_FLL1,
+                       0,
+                       SND_SOC_CLOCK_IN);
+               if (ret)
+                       dev_err(card->dev,
+                               "hw_free: Failed to set SYSCLK to Zero: %d\n",
+                               ret);
+       }
+       return 0;
+}
+
+static int rpi_cirrus_init_wm5102(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       int ret;
+
+       /* no 32kHz input, derive it from sysclk if needed  */
+       snd_soc_component_update_bits(component,
+                       ARIZONA_CLOCK_32K_1, ARIZONA_CLK_32K_SRC_MASK, 2);
+
+       if (rpi_cirrus_clear_flls(rtd->card, component))
+               dev_warn(rtd->card->dev,
+                       "init_wm5102: failed to clear FLLs\n");
+
+       ret = snd_soc_component_set_sysclk(component,
+               ARIZONA_CLK_SYSCLK, ARIZONA_CLK_SRC_FLL1,
+               0, SND_SOC_CLOCK_IN);
+       if (ret) {
+               dev_err(rtd->card->dev,
+                       "Failed to set SYSCLK to Zero: %d\n", ret);
+               return ret;
+       }
+
+       return 0;
+}
+
+static int rpi_cirrus_init_wm8804(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+       struct snd_soc_component *component = codec_dai->component;
+       struct snd_soc_card *card = rtd->card;
+       struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
+       unsigned int val, mask;
+       int i, ret;
+
+       for (i = 0; i < 4; i++) {
+               val = snd_soc_component_read(component,
+                       WM8804_SPDTX1 + i);
+               mask = (i == 3) ? 0x3f : 0xff;
+               priv->iec958_status[i] = val & mask;
+       }
+
+       /* Setup for 256fs */
+       ret = snd_soc_dai_set_clkdiv(codec_dai,
+               WM8804_MCLK_DIV, WM8804_MCLKDIV_256FS);
+       if (ret) {
+               dev_err(card->dev,
+                       "init_wm8804: Failed to set MCLK_DIV to 256fs: %d\n",
+                       ret);
+               return ret;
+       }
+
+       /* Output OSC on CLKOUT */
+       ret = snd_soc_dai_set_sysclk(codec_dai,
+               WM8804_CLKOUT_SRC_OSCCLK, WM8804_CLKOUT_HZ, 0);
+       if (ret)
+               dev_err(card->dev,
+                       "init_wm8804: Failed to set CLKOUT as OSC Frequency: %d\n",
+                       ret);
+
+       /* Init PLL with default samplerate */
+       ret = rpi_cirrus_set_wm8804_pll(card, codec_dai,
+               RPI_CIRRUS_DEFAULT_RATE);
+       if (ret)
+               dev_err(card->dev,
+                       "init_wm8804: Failed to setup PLL for %dHz: %d\n",
+                       RPI_CIRRUS_DEFAULT_RATE, ret);
+
+       return ret;
+}
+
+static struct snd_soc_ops rpi_cirrus_ops = {
+       .startup = rpi_cirrus_startup,
+       .hw_params = rpi_cirrus_hw_params,
+       .hw_free = rpi_cirrus_hw_free,
+};
+
+SND_SOC_DAILINK_DEFS(wm5102,
+     DAILINK_COMP_ARRAY(COMP_EMPTY()),
+     DAILINK_COMP_ARRAY(COMP_CODEC("wm5102-codec", "wm5102-aif1")),
+     DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(wm8804,
+     DAILINK_COMP_ARRAY(COMP_CPU("wm5102-aif2")),
+     DAILINK_COMP_ARRAY(COMP_CODEC("wm8804.1-003b", "wm8804-spdif")));
+
+static struct snd_soc_dai_link rpi_cirrus_dai[] = {
+       [DAI_WM5102] = {
+               .name           = "WM5102",
+               .stream_name    = "WM5102 AiFi",
+               .dai_fmt        =   SND_SOC_DAIFMT_I2S
+                                 | SND_SOC_DAIFMT_NB_NF
+                                 | SND_SOC_DAIFMT_CBM_CFM,
+               .ops            = &rpi_cirrus_ops,
+               .init           = rpi_cirrus_init_wm5102,
+               SND_SOC_DAILINK_REG(wm5102),
+       },
+       [DAI_WM8804] = {
+               .name           = "WM5102 SPDIF",
+               .stream_name    = "SPDIF Tx/Rx",
+               .dai_fmt        =   SND_SOC_DAIFMT_I2S
+                                 | SND_SOC_DAIFMT_NB_NF
+                                 | SND_SOC_DAIFMT_CBM_CFM,
+               .ignore_suspend = 1,
+               .params         = &rpi_cirrus_dai_link2_params,
+               .init           = rpi_cirrus_init_wm8804,
+               SND_SOC_DAILINK_REG(wm8804),
+       },
+};
+
+
+static int rpi_cirrus_late_probe(struct snd_soc_card *card)
+{
+       struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
+       struct snd_soc_pcm_runtime *wm5102_runtime = get_wm5102_runtime(card);
+       struct snd_soc_pcm_runtime *wm8804_runtime = get_wm8804_runtime(card);
+       int ret;
+
+       dev_dbg(card->dev, "iec958_bits: %02x %02x %02x %02x\n",
+               priv->iec958_status[0],
+               priv->iec958_status[1],
+               priv->iec958_status[2],
+               priv->iec958_status[3]);
+
+       ret = snd_soc_dai_set_sysclk(
+               asoc_rtd_to_codec(wm5102_runtime, 0), ARIZONA_CLK_SYSCLK, 0, 0);
+       if (ret) {
+               dev_err(card->dev,
+                       "Failed to set WM5102 codec dai clk domain: %d\n", ret);
+               return ret;
+       }
+
+       ret = snd_soc_dai_set_sysclk(
+               asoc_rtd_to_cpu(wm8804_runtime, 0), ARIZONA_CLK_SYSCLK, 0, 0);
+       if (ret)
+               dev_err(card->dev,
+                       "Failed to set WM8804 codec dai clk domain: %d\n", ret);
+
+       return ret;
+}
+
+/* audio machine driver */
+static struct snd_soc_card rpi_cirrus_card = {
+       .name                   = "RPi-Cirrus",
+       .driver_name            = "RPiCirrus",
+       .owner                  = THIS_MODULE,
+       .dai_link               = rpi_cirrus_dai,
+       .num_links              = ARRAY_SIZE(rpi_cirrus_dai),
+       .late_probe             = rpi_cirrus_late_probe,
+       .controls               = rpi_cirrus_controls,
+       .num_controls           = ARRAY_SIZE(rpi_cirrus_controls),
+       .dapm_widgets           = rpi_cirrus_dapm_widgets,
+       .num_dapm_widgets       = ARRAY_SIZE(rpi_cirrus_dapm_widgets),
+       .dapm_routes            = rpi_cirrus_dapm_routes,
+       .num_dapm_routes        = ARRAY_SIZE(rpi_cirrus_dapm_routes),
+       .set_bias_level         = rpi_cirrus_set_bias_level,
+       .set_bias_level_post    = rpi_cirrus_set_bias_level_post,
+};
+
+static int rpi_cirrus_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+       struct rpi_cirrus_priv *priv;
+       struct device_node *i2s_node;
+
+       priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+       if (!priv)
+               return -ENOMEM;
+
+       priv->min_rate_idx = 1; /* min samplerate 32kHz */
+       priv->card_rate = RPI_CIRRUS_DEFAULT_RATE;
+
+       mutex_init(&priv->lock);
+
+       snd_soc_card_set_drvdata(&rpi_cirrus_card, priv);
+
+       if (!pdev->dev.of_node)
+               return -ENODEV;
+
+       i2s_node = of_parse_phandle(
+                       pdev->dev.of_node, "i2s-controller", 0);
+       if (!i2s_node) {
+               dev_err(&pdev->dev, "i2s-controller missing in DT\n");
+               return -ENODEV;
+       }
+
+       rpi_cirrus_dai[DAI_WM5102].cpus->of_node = i2s_node;
+       rpi_cirrus_dai[DAI_WM5102].platforms->of_node = i2s_node;
+
+       rpi_cirrus_card.dev = &pdev->dev;
+
+       ret = devm_snd_soc_register_card(&pdev->dev, &rpi_cirrus_card);
+       if (ret) {
+               if (ret == -EPROBE_DEFER)
+                       dev_dbg(&pdev->dev,
+                               "register card requested probe deferral\n");
+               else
+                       dev_err(&pdev->dev,
+                               "Failed to register card: %d\n", ret);
+       }
+
+       return ret;
+}
+
+static const struct of_device_id rpi_cirrus_of_match[] = {
+       { .compatible = "wlf,rpi-cirrus", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, rpi_cirrus_of_match);
+
+static struct platform_driver rpi_cirrus_driver = {
+       .driver = {
+               .name   = "snd-rpi-cirrus",
+               .of_match_table = of_match_ptr(rpi_cirrus_of_match),
+       },
+       .probe  = rpi_cirrus_probe,
+};
+
+module_platform_driver(rpi_cirrus_driver);
+
+MODULE_AUTHOR("Matthias Reichl <hias@horus.com>");
+MODULE_DESCRIPTION("ASoC driver for Cirrus Logic Audio Card");
+MODULE_LICENSE("GPL");
--- /dev/null
+++ b/sound/soc/bcm/rpi-proto.c
@@ -0,0 +1,147 @@
+/*
+ * ASoC driver for PROTO AudioCODEC (with a WM8731)
+ * connected to a Raspberry Pi
+ *
+ * Author:      Florian Meier, <koalo@koalo.de>
+ *           Copyright 2013
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include "../codecs/wm8731.h"
+
+static const unsigned int wm8731_rates_12288000[] = {
+       8000, 32000, 48000, 96000,
+};
+
+static struct snd_pcm_hw_constraint_list wm8731_constraints_12288000 = {
+       .list = wm8731_rates_12288000,
+       .count = ARRAY_SIZE(wm8731_rates_12288000),
+};
+
+static int snd_rpi_proto_startup(struct snd_pcm_substream *substream)
+{
+       /* Setup constraints, because there is a 12.288 MHz XTAL on the board */
+       snd_pcm_hw_constraint_list(substream->runtime, 0,
+                               SNDRV_PCM_HW_PARAM_RATE,
+                               &wm8731_constraints_12288000);
+       return 0;
+}
+
+static int snd_rpi_proto_hw_params(struct snd_pcm_substream *substream,
+                                      struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+       struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+       int sysclk = 12288000; /* This is fixed on this board */
+
+       /* Set proto bclk */
+       int ret = snd_soc_dai_set_bclk_ratio(cpu_dai,32*2);
+       if (ret < 0){
+               dev_err(rtd->card->dev,
+                               "Failed to set BCLK ratio %d\n", ret);
+               return ret;
+       }
+
+       /* Set proto sysclk */
+       ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
+                       sysclk, SND_SOC_CLOCK_IN);
+       if (ret < 0) {
+               dev_err(rtd->card->dev,
+                               "Failed to set WM8731 SYSCLK: %d\n", ret);
+               return ret;
+       }
+
+       return 0;
+}
+
+/* machine stream operations */
+static struct snd_soc_ops snd_rpi_proto_ops = {
+       .startup = snd_rpi_proto_startup,
+       .hw_params = snd_rpi_proto_hw_params,
+};
+
+SND_SOC_DAILINK_DEFS(rpi_proto,
+       DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+       DAILINK_COMP_ARRAY(COMP_CODEC("wm8731.1-001a", "wm8731-hifi")),
+       DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
+
+static struct snd_soc_dai_link snd_rpi_proto_dai[] = {
+{
+       .name           = "WM8731",
+       .stream_name    = "WM8731 HiFi",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S
+                               | SND_SOC_DAIFMT_NB_NF
+                               | SND_SOC_DAIFMT_CBM_CFM,
+       .ops            = &snd_rpi_proto_ops,
+       SND_SOC_DAILINK_REG(rpi_proto),
+},
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_rpi_proto = {
+       .name           = "snd_rpi_proto",
+       .owner          = THIS_MODULE,
+       .dai_link       = snd_rpi_proto_dai,
+       .num_links      = ARRAY_SIZE(snd_rpi_proto_dai),
+};
+
+static int snd_rpi_proto_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+
+       snd_rpi_proto.dev = &pdev->dev;
+
+       if (pdev->dev.of_node) {
+               struct device_node *i2s_node;
+               struct snd_soc_dai_link *dai = &snd_rpi_proto_dai[0];
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                                           "i2s-controller", 0);
+
+               if (i2s_node) {
+                       dai->cpus->dai_name = NULL;
+                       dai->cpus->of_node = i2s_node;
+                       dai->platforms->name = NULL;
+                       dai->platforms->of_node = i2s_node;
+               }
+       }
+
+       ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_proto);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev,
+                               "snd_soc_register_card() failed: %d\n", ret);
+
+       return ret;
+}
+
+static const struct of_device_id snd_rpi_proto_of_match[] = {
+       { .compatible = "rpi,rpi-proto", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, snd_rpi_proto_of_match);
+
+static struct platform_driver snd_rpi_proto_driver = {
+       .driver = {
+               .name   = "snd-rpi-proto",
+               .owner  = THIS_MODULE,
+               .of_match_table = snd_rpi_proto_of_match,
+       },
+       .probe    = snd_rpi_proto_probe,
+};
+
+module_platform_driver(snd_rpi_proto_driver);
+
+MODULE_AUTHOR("Florian Meier");
+MODULE_DESCRIPTION("ASoC Driver for Raspberry Pi connected to PROTO board (WM8731)");
+MODULE_LICENSE("GPL");
--- /dev/null
+++ b/sound/soc/bcm/rpi-simple-soundcard.c
@@ -0,0 +1,487 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * rpi-simple-soundcard.c -- ALSA SoC Raspberry Pi soundcard.
+ *
+ * Copyright (C) 2018 Raspberry Pi.
+ *
+ * Authors: Tim Gover <tim.gover@raspberrypi.org>
+ *
+ * Based on code:
+ * hifiberry_amp.c, hifiberry_dac.c, rpi-dac.c
+ * by Florian Meier <florian.meier@koalo.de>
+ *
+ * googlevoicehat-soundcard.c
+ * by Peter Malkin <petermalkin@google.com>
+ *
+ * adau1977-adc.c
+ * by Andrey Grodzovsky <andrey2805@gmail.com>
+ *
+ * merus-amp.c
+ * by Ariel Muszkat <ariel.muszkat@gmail.com>
+ *             Jorgen Kragh Jakobsen <jorgen.kraghjakobsen@infineon.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/gpio/consumer.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+/* Parameters for generic RPI functions */
+struct snd_rpi_simple_drvdata {
+       struct snd_soc_dai_link *dai;
+       const char* card_name;
+       unsigned int fixed_bclk_ratio;
+};
+
+static struct snd_soc_card snd_rpi_simple = {
+       .driver_name  = "RPi-simple",
+       .owner        = THIS_MODULE,
+       .dai_link     = NULL,
+       .num_links    = 1, /* Only a single DAI supported at the moment */
+};
+
+static int snd_rpi_simple_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_rpi_simple_drvdata *drvdata =
+               snd_soc_card_get_drvdata(rtd->card);
+       struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+
+       if (drvdata->fixed_bclk_ratio > 0)
+               return snd_soc_dai_set_bclk_ratio(cpu_dai,
+                               drvdata->fixed_bclk_ratio);
+
+       return 0;
+}
+
+static int pifi_mini_210_init(struct snd_soc_pcm_runtime *rtd)
+{
+       struct snd_soc_component *dac;
+       struct gpio_desc *pdn_gpio, *rst_gpio;
+       struct snd_soc_dai *codec_dai;
+       int ret;
+
+       snd_rpi_simple_init(rtd);
+       codec_dai = asoc_rtd_to_codec(rtd, 0);
+
+       dac = codec_dai[0].component;
+
+       pdn_gpio = devm_gpiod_get_optional(snd_rpi_simple.dev, "pdn",
+                                               GPIOD_OUT_LOW);
+       if (IS_ERR(pdn_gpio)) {
+               ret = PTR_ERR(pdn_gpio);
+               dev_err(snd_rpi_simple.dev, "failed to get pdn gpio: %d\n", ret);
+               return ret;
+       }
+
+       rst_gpio = devm_gpiod_get_optional(snd_rpi_simple.dev, "rst",
+                                               GPIOD_OUT_LOW);
+       if (IS_ERR(rst_gpio)) {
+               ret = PTR_ERR(rst_gpio);
+               dev_err(snd_rpi_simple.dev, "failed to get rst gpio: %d\n", ret);
+               return ret;
+       }
+
+       // Set up cards - pulse power down and reset first, then
+       // set up according to datasheet
+       gpiod_set_value_cansleep(pdn_gpio, 1);
+       gpiod_set_value_cansleep(rst_gpio, 1);
+       usleep_range(1000, 10000);
+       gpiod_set_value_cansleep(pdn_gpio, 0);
+       usleep_range(20000, 30000);
+       gpiod_set_value_cansleep(rst_gpio, 0);
+       usleep_range(20000, 30000);
+
+       // Oscillator trim
+       snd_soc_component_write(dac, 0x1b, 0);
+       usleep_range(60000, 80000);
+
+       // MCLK at 64fs, sample rate 44.1 or 48kHz
+       snd_soc_component_write(dac, 0x00, 0x60);
+
+       // Set up for BTL - AD/BD mode - AD is 0x00107772, BD is 0x00987772
+       snd_soc_component_write(dac, 0x20, 0x00107772);
+
+       // End mute
+       snd_soc_component_write(dac, 0x05, 0x00);
+
+       return 0;
+}
+
+static int snd_rpi_simple_hw_params(struct snd_pcm_substream *substream,
+               struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+       struct snd_rpi_simple_drvdata *drvdata;
+       unsigned int sample_bits;
+
+       drvdata = snd_soc_card_get_drvdata(rtd->card);
+
+       if (drvdata->fixed_bclk_ratio > 0)
+               return 0; // BCLK is configured in .init
+
+       /* The simple drivers just set the bclk_ratio to sample_bits * 2 so
+        * hard-code this for now. More complex drivers could just replace
+        * the hw_params routine.
+        */
+       sample_bits = snd_pcm_format_physical_width(params_format(params));
+       return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2);
+}
+
+static struct snd_soc_ops snd_rpi_simple_ops = {
+       .hw_params = snd_rpi_simple_hw_params,
+};
+
+static int snd_merus_amp_hw_params(struct snd_pcm_substream *substream,
+               struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+       int rate;
+
+       rate = params_rate(params);
+       if (rate > 48000) {
+               dev_err(rtd->card->dev,
+               "Unsupported samplerate %d\n",
+               rate);
+               return -EINVAL;
+       }
+       return 0;
+}
+
+static struct snd_soc_ops snd_merus_amp_ops = {
+       .hw_params = snd_merus_amp_hw_params,
+};
+
+enum adau1977_clk_id {
+       ADAU1977_SYSCLK,
+};
+
+enum adau1977_sysclk_src {
+       ADAU1977_SYSCLK_SRC_MCLK,
+       ADAU1977_SYSCLK_SRC_LRCLK,
+};
+
+static int adau1977_init(struct snd_soc_pcm_runtime *rtd)
+{
+       int ret;
+       struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+
+       ret = snd_soc_dai_set_tdm_slot(codec_dai, 0, 0, 0, 0);
+       if (ret < 0)
+               return ret;
+
+       return snd_soc_component_set_sysclk(codec_dai->component,
+                       ADAU1977_SYSCLK, ADAU1977_SYSCLK_SRC_MCLK,
+                       11289600, SND_SOC_CLOCK_IN);
+}
+
+SND_SOC_DAILINK_DEFS(adau1977,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_CODEC("adau1977.1-0011", "adau1977-hifi")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_rpi_adau1977_dai[] = {
+       {
+       .name           = "adau1977",
+       .stream_name    = "ADAU1977",
+       .init           = adau1977_init,
+       .dai_fmt = SND_SOC_DAIFMT_I2S |
+               SND_SOC_DAIFMT_NB_NF |
+               SND_SOC_DAIFMT_CBM_CFM,
+       SND_SOC_DAILINK_REG(adau1977),
+       },
+};
+
+static struct snd_rpi_simple_drvdata drvdata_adau1977 = {
+       .card_name = "snd_rpi_adau1977_adc",
+       .dai       = snd_rpi_adau1977_dai,
+};
+
+SND_SOC_DAILINK_DEFS(gvchat,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_CODEC("voicehat-codec", "voicehat-hifi")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_googlevoicehat_soundcard_dai[] = {
+{
+       .name           = "Google voiceHAT SoundCard",
+       .stream_name    = "Google voiceHAT SoundCard HiFi",
+       .dai_fmt        =  SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                               SND_SOC_DAIFMT_CBS_CFS,
+       SND_SOC_DAILINK_REG(gvchat),
+},
+};
+
+static struct snd_rpi_simple_drvdata drvdata_googlevoicehat = {
+       .card_name = "snd_rpi_googlevoicehat_soundcard",
+       .dai       = snd_googlevoicehat_soundcard_dai,
+};
+
+SND_SOC_DAILINK_DEFS(hifiberry_dacplusdsp,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_CODEC("dacplusdsp-codec", "dacplusdsp-hifi")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_hifiberrydacplusdsp_soundcard_dai[] = {
+{
+       .name           = "Hifiberry DAC+DSP SoundCard",
+       .stream_name    = "Hifiberry DAC+DSP SoundCard HiFi",
+       .dai_fmt        =  SND_SOC_DAIFMT_I2S |
+                          SND_SOC_DAIFMT_NB_NF |
+                          SND_SOC_DAIFMT_CBS_CFS,
+       SND_SOC_DAILINK_REG(hifiberry_dacplusdsp),
+},
+};
+
+static struct snd_rpi_simple_drvdata drvdata_hifiberrydacplusdsp = {
+       .card_name = "snd_rpi_hifiberrydacplusdsp_soundcard",
+       .dai       = snd_hifiberrydacplusdsp_soundcard_dai,
+};
+
+SND_SOC_DAILINK_DEFS(hifiberry_amp,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_CODEC("tas5713.1-001b", "tas5713-hifi")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_hifiberry_amp_dai[] = {
+       {
+               .name           = "HifiBerry AMP",
+               .stream_name    = "HifiBerry AMP HiFi",
+               .dai_fmt        = SND_SOC_DAIFMT_I2S |
+                                       SND_SOC_DAIFMT_NB_NF |
+                                       SND_SOC_DAIFMT_CBS_CFS,
+               SND_SOC_DAILINK_REG(hifiberry_amp),
+       },
+};
+
+static struct snd_rpi_simple_drvdata drvdata_hifiberry_amp = {
+       .card_name        = "snd_rpi_hifiberry_amp",
+       .dai              = snd_hifiberry_amp_dai,
+       .fixed_bclk_ratio = 64,
+};
+
+SND_SOC_DAILINK_DEFS(hifiberry_amp3,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_CODEC("ma120x0p.1-0020", "ma120x0p-amp")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_hifiberry_amp3_dai[] = {
+       {
+               .name           = "HifiberryAmp3",
+               .stream_name    = "Hifiberry Amp3",
+               .dai_fmt        = SND_SOC_DAIFMT_I2S |
+                                       SND_SOC_DAIFMT_NB_NF |
+                                       SND_SOC_DAIFMT_CBS_CFS,
+               SND_SOC_DAILINK_REG(hifiberry_amp3),
+       },
+};
+
+static struct snd_rpi_simple_drvdata drvdata_hifiberry_amp3 = {
+       .card_name       = "snd_rpi_hifiberry_amp3",
+       .dai             = snd_hifiberry_amp3_dai,
+       .fixed_bclk_ratio = 64,
+};
+
+SND_SOC_DAILINK_DEFS(hifiberry_dac,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_CODEC("pcm5102a-codec", "pcm5102a-hifi")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_hifiberry_dac_dai[] = {
+       {
+               .name           = "HifiBerry DAC",
+               .stream_name    = "HifiBerry DAC HiFi",
+               .dai_fmt        = SND_SOC_DAIFMT_I2S |
+                                       SND_SOC_DAIFMT_NB_NF |
+                                       SND_SOC_DAIFMT_CBS_CFS,
+               SND_SOC_DAILINK_REG(hifiberry_dac),
+       },
+};
+
+static struct snd_rpi_simple_drvdata drvdata_hifiberry_dac = {
+       .card_name = "snd_rpi_hifiberry_dac",
+       .dai       = snd_hifiberry_dac_dai,
+};
+
+SND_SOC_DAILINK_DEFS(dionaudio_kiwi,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_CODEC("pcm1794a-codec", "pcm1794a-hifi")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_dionaudio_kiwi_dai[] = {
+{
+       .name           = "DionAudio KIWI",
+       .stream_name    = "DionAudio KIWI STREAMER",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                               SND_SOC_DAIFMT_CBS_CFS,
+       SND_SOC_DAILINK_REG(dionaudio_kiwi),
+},
+};
+
+static struct snd_rpi_simple_drvdata drvdata_dionaudio_kiwi = {
+       .card_name        = "snd_rpi_dionaudio_kiwi",
+       .dai              = snd_dionaudio_kiwi_dai,
+       .fixed_bclk_ratio = 64,
+};
+
+SND_SOC_DAILINK_DEFS(rpi_dac,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_CODEC("pcm1794a-codec", "pcm1794a-hifi")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_rpi_dac_dai[] = {
+{
+       .name           = "RPi-DAC",
+       .stream_name    = "RPi-DAC HiFi",
+       .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                               SND_SOC_DAIFMT_CBS_CFS,
+       SND_SOC_DAILINK_REG(rpi_dac),
+},
+};
+
+static struct snd_rpi_simple_drvdata drvdata_rpi_dac = {
+       .card_name        = "snd_rpi_rpi_dac",
+       .dai              = snd_rpi_dac_dai,
+       .fixed_bclk_ratio = 64,
+};
+
+SND_SOC_DAILINK_DEFS(merus_amp,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_CODEC("ma120x0p.1-0020", "ma120x0p-amp")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_merus_amp_dai[] = {
+       {
+               .name           = "MerusAmp",
+               .stream_name    = "Merus Audio Amp",
+               .ops            = &snd_merus_amp_ops,
+               .dai_fmt        = SND_SOC_DAIFMT_I2S |
+                                       SND_SOC_DAIFMT_NB_NF |
+                                       SND_SOC_DAIFMT_CBS_CFS,
+               SND_SOC_DAILINK_REG(merus_amp),
+       },
+};
+
+static struct snd_rpi_simple_drvdata drvdata_merus_amp = {
+       .card_name        = "snd_rpi_merus_amp",
+       .dai              = snd_merus_amp_dai,
+       .fixed_bclk_ratio = 64,
+};
+
+SND_SOC_DAILINK_DEFS(pifi_mini_210,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_CODEC("tas571x.1-001a", "tas571x-hifi")),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_pifi_mini_210_dai[] = {
+       {
+               .name           = "PiFi Mini 210",
+               .stream_name    = "PiFi Mini 210 HiFi",
+               .init                   = pifi_mini_210_init,
+               .dai_fmt        = SND_SOC_DAIFMT_I2S |
+                                       SND_SOC_DAIFMT_NB_NF |
+                                       SND_SOC_DAIFMT_CBS_CFS,
+               SND_SOC_DAILINK_REG(pifi_mini_210),
+       },
+};
+
+static struct snd_rpi_simple_drvdata drvdata_pifi_mini_210 = {
+       .card_name        = "snd_pifi_mini_210",
+       .dai              = snd_pifi_mini_210_dai,
+       .fixed_bclk_ratio = 64,
+};
+
+static const struct of_device_id snd_rpi_simple_of_match[] = {
+       { .compatible = "adi,adau1977-adc",
+               .data = (void *) &drvdata_adau1977 },
+       { .compatible = "googlevoicehat,googlevoicehat-soundcard",
+               .data = (void *) &drvdata_googlevoicehat },
+       { .compatible = "hifiberrydacplusdsp,hifiberrydacplusdsp-soundcard",
+               .data = (void *) &drvdata_hifiberrydacplusdsp },
+       { .compatible = "hifiberry,hifiberry-amp",
+               .data = (void *) &drvdata_hifiberry_amp },
+       { .compatible = "hifiberry,hifiberry-amp3",
+               .data = (void *) &drvdata_hifiberry_amp3 },
+       { .compatible = "hifiberry,hifiberry-dac",
+               .data = (void *) &drvdata_hifiberry_dac },
+       { .compatible = "dionaudio,dionaudio-kiwi",
+               .data = (void *) &drvdata_dionaudio_kiwi },
+       { .compatible = "rpi,rpi-dac", &drvdata_rpi_dac},
+       { .compatible = "merus,merus-amp",
+               .data = (void *) &drvdata_merus_amp },
+       { .compatible = "pifi,pifi-mini-210",
+               .data = (void *) &drvdata_pifi_mini_210 },
+       {},
+};
+
+static int snd_rpi_simple_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+       const struct of_device_id *of_id;
+
+       snd_rpi_simple.dev = &pdev->dev;
+       of_id = of_match_node(snd_rpi_simple_of_match, pdev->dev.of_node);
+
+       if (pdev->dev.of_node && of_id->data) {
+               struct device_node *i2s_node;
+               struct snd_rpi_simple_drvdata *drvdata =
+                       (struct snd_rpi_simple_drvdata *) of_id->data;
+               struct snd_soc_dai_link *dai = drvdata->dai;
+
+               snd_soc_card_set_drvdata(&snd_rpi_simple, drvdata);
+
+               /* More complex drivers might override individual functions */
+               if (!dai->init)
+                       dai->init = snd_rpi_simple_init;
+               if (!dai->ops)
+                       dai->ops = &snd_rpi_simple_ops;
+
+               snd_rpi_simple.name = drvdata->card_name;
+
+               snd_rpi_simple.dai_link = dai;
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                               "i2s-controller", 0);
+               if (!i2s_node) {
+                       pr_err("Failed to find i2s-controller DT node\n");
+                       return -ENODEV;
+               }
+
+               dai->cpus->of_node = i2s_node;
+               dai->platforms->of_node = i2s_node;
+       }
+
+       ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_simple);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev, "Failed to register card %d\n", ret);
+
+       return ret;
+}
+
+static struct platform_driver snd_rpi_simple_driver = {
+       .driver = {
+               .name   = "snd-rpi-simple",
+               .owner  = THIS_MODULE,
+               .of_match_table = snd_rpi_simple_of_match,
+       },
+       .probe          = snd_rpi_simple_probe,
+};
+MODULE_DEVICE_TABLE(of, snd_rpi_simple_of_match);
+
+module_platform_driver(snd_rpi_simple_driver);
+
+MODULE_AUTHOR("Tim Gover <tim.gover@raspberrypi.org>");
+MODULE_DESCRIPTION("ASoC Raspberry Pi simple soundcard driver ");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/bcm/rpi-wm8804-soundcard.c
@@ -0,0 +1,410 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * rpi--wm8804.c -- ALSA SoC Raspberry Pi soundcard.
+ *
+ * Copyright (C) 2018 Raspberry Pi.
+ *
+ * Authors: Tim Gover <tim.gover@raspberrypi.org>
+ *
+ * Generic driver for Pi Hat WM8804 digi sounds cards
+ *
+ * Based upon code from:
+ * justboom-digi.c
+ * by Milan Neskovic <info@justboom.co>
+ *
+ * iqaudio_digi.c
+ * by Daniel Matuschek <info@crazy-audio.com>
+ *
+ * allo-digione.c
+ * by Baswaraj <jaikumar@cem-solutions.net>
+ *
+ * hifiberry-digi.c
+ * Daniel Matuschek <info@crazy-audio.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/gpio/consumer.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "../codecs/wm8804.h"
+
+struct wm8804_clk_cfg {
+       unsigned int sysclk_freq;
+       unsigned int mclk_freq;
+       unsigned int mclk_div;
+};
+
+/* Parameters for generic functions */
+struct snd_rpi_wm8804_drvdata {
+       /* Required - pointer to the DAI structure */
+       struct snd_soc_dai_link *dai;
+       /* Required - snd_soc_card name */
+       const char *card_name;
+       /* Optional DT node names if card info is defined in DT */
+       const char *card_name_dt;
+       const char *dai_name_dt;
+       const char *dai_stream_name_dt;
+       /* Optional probe extension - called prior to register_card */
+       int (*probe)(struct platform_device *pdev);
+};
+
+static struct gpio_desc *snd_clk44gpio;
+static struct gpio_desc *snd_clk48gpio;
+static int wm8804_samplerate = 0;
+
+/* Forward declarations */
+static struct snd_soc_dai_link snd_allo_digione_dai[];
+static struct snd_soc_card snd_rpi_wm8804;
+
+
+#define CLK_44EN_RATE 22579200UL
+#define CLK_48EN_RATE 24576000UL
+
+static unsigned int snd_rpi_wm8804_enable_clock(unsigned int samplerate)
+{
+       switch (samplerate) {
+       case 11025:
+       case 22050:
+       case 44100:
+       case 88200:
+       case 176400:
+               gpiod_set_value_cansleep(snd_clk44gpio, 1);
+               gpiod_set_value_cansleep(snd_clk48gpio, 0);
+               return CLK_44EN_RATE;
+       default:
+               gpiod_set_value_cansleep(snd_clk48gpio, 1);
+               gpiod_set_value_cansleep(snd_clk44gpio, 0);
+               return CLK_48EN_RATE;
+       }
+}
+
+static void snd_rpi_wm8804_clk_cfg(unsigned int samplerate,
+               struct wm8804_clk_cfg *clk_cfg)
+{
+       clk_cfg->sysclk_freq = 27000000;
+
+       if (samplerate <= 96000 ||
+           snd_rpi_wm8804.dai_link == snd_allo_digione_dai) {
+               clk_cfg->mclk_freq = samplerate * 256;
+               clk_cfg->mclk_div = WM8804_MCLKDIV_256FS;
+       } else {
+               clk_cfg->mclk_freq = samplerate * 128;
+               clk_cfg->mclk_div = WM8804_MCLKDIV_128FS;
+       }
+
+       if (!(IS_ERR(snd_clk44gpio) || IS_ERR(snd_clk48gpio)))
+               clk_cfg->sysclk_freq = snd_rpi_wm8804_enable_clock(samplerate);
+}
+
+static int snd_rpi_wm8804_hw_params(struct snd_pcm_substream *substream,
+               struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+       struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+       int sampling_freq = 1;
+       int ret;
+       struct wm8804_clk_cfg clk_cfg;
+       int samplerate = params_rate(params);
+
+       if (samplerate == wm8804_samplerate)
+               return 0;
+
+       /* clear until all clocks are setup properly */
+       wm8804_samplerate = 0;
+
+       snd_rpi_wm8804_clk_cfg(samplerate, &clk_cfg);
+
+       pr_debug("%s samplerate: %d mclk_freq: %u mclk_div: %u sysclk: %u\n",
+                       __func__, samplerate, clk_cfg.mclk_freq,
+                       clk_cfg.mclk_div, clk_cfg.sysclk_freq);
+
+       switch (samplerate) {
+       case 32000:
+               sampling_freq = 0x03;
+               break;
+       case 44100:
+               sampling_freq = 0x00;
+               break;
+       case 48000:
+               sampling_freq = 0x02;
+               break;
+       case 88200:
+               sampling_freq = 0x08;
+               break;
+       case 96000:
+               sampling_freq = 0x0a;
+               break;
+       case 176400:
+               sampling_freq = 0x0c;
+               break;
+       case 192000:
+               sampling_freq = 0x0e;
+               break;
+       default:
+               dev_err(rtd->card->dev,
+               "Failed to set WM8804 SYSCLK, unsupported samplerate %d\n",
+               samplerate);
+       }
+
+       snd_soc_dai_set_clkdiv(codec_dai, WM8804_MCLK_DIV, clk_cfg.mclk_div);
+       snd_soc_dai_set_pll(codec_dai, 0, 0,
+                       clk_cfg.sysclk_freq, clk_cfg.mclk_freq);
+
+       ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL,
+                       clk_cfg.sysclk_freq, SND_SOC_CLOCK_OUT);
+       if (ret < 0) {
+               dev_err(rtd->card->dev,
+               "Failed to set WM8804 SYSCLK: %d\n", ret);
+               return ret;
+       }
+
+       wm8804_samplerate = samplerate;
+
+       /* set sampling frequency status bits */
+       snd_soc_component_update_bits(component, WM8804_SPDTX4, 0x0f,
+                       sampling_freq);
+
+       return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
+}
+
+static struct snd_soc_ops snd_rpi_wm8804_ops = {
+       .hw_params = snd_rpi_wm8804_hw_params,
+};
+
+SND_SOC_DAILINK_DEFS(justboom_digi,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_justboom_digi_dai[] = {
+{
+       .name        = "JustBoom Digi",
+       .stream_name = "JustBoom Digi HiFi",
+       SND_SOC_DAILINK_REG(justboom_digi),
+},
+};
+
+static struct snd_rpi_wm8804_drvdata drvdata_justboom_digi = {
+       .card_name            = "snd_rpi_justboom_digi",
+       .dai                  = snd_justboom_digi_dai,
+};
+
+SND_SOC_DAILINK_DEFS(iqaudio_digi,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_iqaudio_digi_dai[] = {
+{
+       .name        = "IQAudIO Digi",
+       .stream_name = "IQAudIO Digi HiFi",
+       SND_SOC_DAILINK_REG(iqaudio_digi),
+},
+};
+
+static struct snd_rpi_wm8804_drvdata drvdata_iqaudio_digi = {
+       .card_name          = "IQAudIODigi",
+       .dai                = snd_iqaudio_digi_dai,
+       .card_name_dt       = "wm8804-digi,card-name",
+       .dai_name_dt        = "wm8804-digi,dai-name",
+       .dai_stream_name_dt = "wm8804-digi,dai-stream-name",
+};
+
+static int snd_allo_digione_probe(struct platform_device *pdev)
+{
+       pr_debug("%s\n", __func__);
+
+       if (IS_ERR(snd_clk44gpio) || IS_ERR(snd_clk48gpio)) {
+               dev_err(&pdev->dev, "devm_gpiod_get() failed\n");
+               return -EINVAL;
+       }
+       return 0;
+}
+
+SND_SOC_DAILINK_DEFS(allo_digione,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_allo_digione_dai[] = {
+{
+       .name        = "Allo DigiOne",
+       .stream_name = "Allo DigiOne HiFi",
+       SND_SOC_DAILINK_REG(allo_digione),
+},
+};
+
+static struct snd_rpi_wm8804_drvdata drvdata_allo_digione = {
+       .card_name = "snd_allo_digione",
+       .dai       = snd_allo_digione_dai,
+       .probe     = snd_allo_digione_probe,
+};
+
+SND_SOC_DAILINK_DEFS(hifiberry_digi,
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()),
+       DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link snd_hifiberry_digi_dai[] = {
+{
+       .name        = "HifiBerry Digi",
+       .stream_name = "HifiBerry Digi HiFi",
+       SND_SOC_DAILINK_REG(hifiberry_digi),
+},
+};
+
+static int snd_hifiberry_digi_probe(struct platform_device *pdev)
+{
+       pr_debug("%s\n", __func__);
+
+       if (IS_ERR(snd_clk44gpio) || IS_ERR(snd_clk48gpio))
+               return 0;
+
+       snd_hifiberry_digi_dai->name = "HiFiBerry Digi+ Pro";
+       snd_hifiberry_digi_dai->stream_name = "HiFiBerry Digi+ Pro HiFi";
+       return 0;
+}
+
+static struct snd_rpi_wm8804_drvdata drvdata_hifiberry_digi = {
+       .card_name = "snd_rpi_hifiberry_digi",
+       .dai       = snd_hifiberry_digi_dai,
+       .probe     = snd_hifiberry_digi_probe,
+};
+
+static const struct of_device_id snd_rpi_wm8804_of_match[] = {
+       { .compatible = "justboom,justboom-digi",
+               .data = (void *) &drvdata_justboom_digi },
+       { .compatible = "iqaudio,wm8804-digi",
+               .data = (void *) &drvdata_iqaudio_digi },
+       { .compatible = "allo,allo-digione",
+               .data = (void *) &drvdata_allo_digione },
+       { .compatible = "hifiberry,hifiberry-digi",
+               .data = (void *) &drvdata_hifiberry_digi },
+       {},
+};
+
+static struct snd_soc_card snd_rpi_wm8804 = {
+       .driver_name  = "RPi-WM8804",
+       .owner        = THIS_MODULE,
+       .dai_link     = NULL,
+       .num_links    = 1,
+};
+
+static int snd_rpi_wm8804_probe(struct platform_device *pdev)
+{
+       int ret = 0;
+       const struct of_device_id *of_id;
+
+       snd_rpi_wm8804.dev = &pdev->dev;
+       of_id = of_match_node(snd_rpi_wm8804_of_match, pdev->dev.of_node);
+
+       if (pdev->dev.of_node && of_id->data) {
+               struct device_node *i2s_node;
+               struct snd_rpi_wm8804_drvdata *drvdata =
+                       (struct snd_rpi_wm8804_drvdata *) of_id->data;
+               struct snd_soc_dai_link *dai = drvdata->dai;
+
+               snd_soc_card_set_drvdata(&snd_rpi_wm8804, drvdata);
+
+               if (!dai->ops)
+                       dai->ops = &snd_rpi_wm8804_ops;
+               if (!dai->codecs->dai_name)
+                       dai->codecs->dai_name = "wm8804-spdif";
+               if (!dai->codecs->name)
+                       dai->codecs->name = "wm8804.1-003b";
+               if (!dai->dai_fmt)
+                       dai->dai_fmt = SND_SOC_DAIFMT_I2S |
+                               SND_SOC_DAIFMT_NB_NF |
+                               SND_SOC_DAIFMT_CBM_CFM;
+
+               snd_rpi_wm8804.dai_link = dai;
+               i2s_node = of_parse_phandle(pdev->dev.of_node,
+                               "i2s-controller", 0);
+               if (!i2s_node) {
+                       pr_err("Failed to find i2s-controller DT node\n");
+                       return -ENODEV;
+               }
+
+               snd_rpi_wm8804.name = drvdata->card_name;
+
+               /* If requested by in drvdata get card & DAI names from DT */
+               if (drvdata->card_name_dt)
+                       of_property_read_string(i2s_node,
+                                       drvdata->card_name_dt,
+                                       &snd_rpi_wm8804.name);
+
+               if (drvdata->dai_name_dt)
+                       of_property_read_string(i2s_node,
+                                       drvdata->dai_name_dt,
+                                       &dai->name);
+
+               if (drvdata->dai_stream_name_dt)
+                       of_property_read_string(i2s_node,
+                                       drvdata->dai_stream_name_dt,
+                                       &dai->stream_name);
+
+               dai->cpus->of_node = i2s_node;
+               dai->platforms->of_node = i2s_node;
+
+               /*
+                * clk44gpio and clk48gpio are not required by all cards so
+                * don't check the error status.
+                */
+               snd_clk44gpio =
+                       devm_gpiod_get(&pdev->dev, "clock44", GPIOD_OUT_LOW);
+
+               snd_clk48gpio =
+                       devm_gpiod_get(&pdev->dev, "clock48", GPIOD_OUT_LOW);
+
+               if (drvdata->probe) {
+                       ret = drvdata->probe(pdev);
+                       if (ret < 0) {
+                               dev_err(&pdev->dev, "Custom probe failed %d\n",
+                                               ret);
+                               return ret;
+                       }
+               }
+
+               pr_debug("%s card: %s dai: %s stream: %s\n", __func__,
+                               snd_rpi_wm8804.name,
+                               dai->name, dai->stream_name);
+       }
+
+       ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_wm8804);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev, "Failed to register card %d\n", ret);
+
+       return ret;
+}
+
+static struct platform_driver snd_rpi_wm8804_driver = {
+       .driver = {
+               .name           = "snd-rpi-wm8804",
+               .owner          = THIS_MODULE,
+               .of_match_table = snd_rpi_wm8804_of_match,
+       },
+       .probe  = snd_rpi_wm8804_probe,
+};
+MODULE_DEVICE_TABLE(of, snd_rpi_wm8804_of_match);
+
+module_platform_driver(snd_rpi_wm8804_driver);
+
+MODULE_AUTHOR("Tim Gover <tim.gover@raspberrypi.org>");
+MODULE_DESCRIPTION("ASoC Raspberry Pi Hat generic digi driver for WM8804 based cards");
+MODULE_LICENSE("GPL v2");
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -109,6 +109,7 @@ config SND_SOC_ALL_CODECS
        imply SND_SOC_ICS43432
        imply SND_SOC_INNO_RK3036
        imply SND_SOC_ISABELLE
+       imply SND_SOC_I_SABRE_CODEC
        imply SND_SOC_JZ4740_CODEC
        imply SND_SOC_JZ4725B_CODEC
        imply SND_SOC_JZ4760_CODEC
@@ -116,6 +117,7 @@ config SND_SOC_ALL_CODECS
        imply SND_SOC_LM4857
        imply SND_SOC_LM49453
        imply SND_SOC_LOCHNAGAR_SC
+       imply SND_SOC_MA120X0P
        imply SND_SOC_MAX98088
        imply SND_SOC_MAX98090
        imply SND_SOC_MAX98095
@@ -156,6 +158,7 @@ config SND_SOC_ALL_CODECS
        imply SND_SOC_PCM179X_SPI
        imply SND_SOC_PCM186X_I2C
        imply SND_SOC_PCM186X_SPI
+       imply SND_SOC_PCM1794A
        imply SND_SOC_PCM3008
        imply SND_SOC_PCM3060_I2C
        imply SND_SOC_PCM3060_SPI
@@ -234,6 +237,7 @@ config SND_SOC_ALL_CODECS
        imply SND_SOC_TLV320ADCX140
        imply SND_SOC_TLV320AIC23_I2C
        imply SND_SOC_TLV320AIC23_SPI
+       imply SND_SOC_TAS5713
        imply SND_SOC_TLV320AIC26
        imply SND_SOC_TLV320AIC31XX
        imply SND_SOC_TLV320AIC32X4_I2C
@@ -383,12 +387,12 @@ config SND_SOC_AD193X
        tristate
 
 config SND_SOC_AD193X_SPI
-       tristate
+       tristate "Analog Devices AU193X CODEC - SPI"
        depends on SPI_MASTER
        select SND_SOC_AD193X
 
 config SND_SOC_AD193X_I2C
-       tristate
+       tristate "Analog Devices AU193X CODEC - I2C"
        depends on I2C
        select SND_SOC_AD193X
 
@@ -991,6 +995,13 @@ config SND_SOC_LOCHNAGAR_SC
          This driver support the sound card functionality of the Cirrus
          Logic Lochnagar audio development board.
 
+config SND_SOC_MA120X0P
+       tristate "Infineon Merus(TM) MA120X0P Multilevel Class-D Audio amplifiers"
+       depends on I2C
+       help
+               Enable support for Infineon MA120X0P Multilevel Class-D audio power
+               amplifiers.
+
 config SND_SOC_MADERA
        tristate
        default y if SND_SOC_CS47L15=y
@@ -1333,6 +1344,10 @@ config SND_SOC_RT5616
        tristate "Realtek RT5616 CODEC"
        depends on I2C
 
+config SND_SOC_PCM1794A
+       tristate
+       depends on I2C
+
 config SND_SOC_RT5631
        tristate "Realtek ALC5631/RT5631 CODEC"
        depends on I2C
@@ -1622,6 +1637,9 @@ config SND_SOC_TFA9879
        tristate "NXP Semiconductors TFA9879 amplifier"
        depends on I2C
 
+config SND_SOC_TAS5713
+       tristate
+
 config SND_SOC_TFA989X
        tristate "NXP/Goodix TFA989X (TFA1) amplifiers"
        depends on I2C
@@ -2168,4 +2186,8 @@ config SND_SOC_LPASS_TX_MACRO
        select SND_SOC_LPASS_MACRO_COMMON
        tristate "Qualcomm TX Macro in LPASS(Low Power Audio SubSystem)"
 
+config SND_SOC_I_SABRE_CODEC
+       tristate "Audiophonics I-SABRE Codec"
+       depends on I2C
+
 endmenu
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -113,6 +113,7 @@ snd-soc-hda-codec-objs := hda.o hda-dai.
 snd-soc-ics43432-objs := ics43432.o
 snd-soc-inno-rk3036-objs := inno_rk3036.o
 snd-soc-isabelle-objs := isabelle.o
+snd-soc-i-sabre-codec-objs := i-sabre-codec.o
 snd-soc-jz4740-codec-objs := jz4740.o
 snd-soc-jz4725b-codec-objs := jz4725b.o
 snd-soc-jz4760-codec-objs := jz4760.o
@@ -126,6 +127,7 @@ snd-soc-lpass-rx-macro-objs := lpass-rx-
 snd-soc-lpass-tx-macro-objs := lpass-tx-macro.o
 snd-soc-lpass-wsa-macro-objs := lpass-wsa-macro.o
 snd-soc-lpass-va-macro-objs := lpass-va-macro.o
+snd-soc-ma120x0p-objs := ma120x0p.o
 snd-soc-madera-objs := madera.o
 snd-soc-max9759-objs := max9759.o
 snd-soc-max9768-objs := max9768.o
@@ -172,6 +174,7 @@ snd-soc-pcm179x-spi-objs := pcm179x-spi.
 snd-soc-pcm186x-objs := pcm186x.o
 snd-soc-pcm186x-i2c-objs := pcm186x-i2c.o
 snd-soc-pcm186x-spi-objs := pcm186x-spi.o
+snd-soc-pcm1794a-objs := pcm1794a.o
 snd-soc-pcm3008-objs := pcm3008.o
 snd-soc-pcm3060-objs := pcm3060.o
 snd-soc-pcm3060-i2c-objs := pcm3060-i2c.o
@@ -256,6 +259,7 @@ snd-soc-tas6424-objs := tas6424.o
 snd-soc-tda7419-objs := tda7419.o
 snd-soc-tas2770-objs := tas2770.o
 snd-soc-tfa9879-objs := tfa9879.o
+snd-soc-tas5713-objs := tas5713.o
 snd-soc-tfa989x-objs := tfa989x.o
 snd-soc-tlv320adc3xxx-objs := tlv320adc3xxx.o
 snd-soc-tlv320aic23-objs := tlv320aic23.o
@@ -474,6 +478,7 @@ obj-$(CONFIG_SND_SOC_HDA) += snd-soc-hda
 obj-$(CONFIG_SND_SOC_ICS43432) += snd-soc-ics43432.o
 obj-$(CONFIG_SND_SOC_INNO_RK3036)      += snd-soc-inno-rk3036.o
 obj-$(CONFIG_SND_SOC_ISABELLE) += snd-soc-isabelle.o
+obj-$(CONFIG_SND_SOC_I_SABRE_CODEC)    += snd-soc-i-sabre-codec.o
 obj-$(CONFIG_SND_SOC_JZ4740_CODEC)     += snd-soc-jz4740-codec.o
 obj-$(CONFIG_SND_SOC_JZ4725B_CODEC)    += snd-soc-jz4725b-codec.o
 obj-$(CONFIG_SND_SOC_JZ4760_CODEC)      += snd-soc-jz4760-codec.o
@@ -482,6 +487,7 @@ obj-$(CONFIG_SND_SOC_L3)    += snd-soc-l3.o
 obj-$(CONFIG_SND_SOC_LM4857)   += snd-soc-lm4857.o
 obj-$(CONFIG_SND_SOC_LM49453)   += snd-soc-lm49453.o
 obj-$(CONFIG_SND_SOC_LOCHNAGAR_SC)     += snd-soc-lochnagar-sc.o
+obj-$(CONFIG_SND_SOC_MA120X0P)   += snd-soc-ma120x0p.o
 obj-$(CONFIG_SND_SOC_MADERA)   += snd-soc-madera.o
 obj-$(CONFIG_SND_SOC_MAX9759)  += snd-soc-max9759.o
 obj-$(CONFIG_SND_SOC_MAX9768)  += snd-soc-max9768.o
@@ -539,6 +545,7 @@ obj-$(CONFIG_SND_SOC_PCM5102A)      += snd-so
 obj-$(CONFIG_SND_SOC_PCM512x)  += snd-soc-pcm512x.o
 obj-$(CONFIG_SND_SOC_PCM512x_I2C)      += snd-soc-pcm512x-i2c.o
 obj-$(CONFIG_SND_SOC_PCM512x_SPI)      += snd-soc-pcm512x-spi.o
+obj-$(CONFIG_SND_SOC_PCM1794A) += snd-soc-pcm1794a.o
 obj-$(CONFIG_SND_SOC_RK3328)   += snd-soc-rk3328.o
 obj-$(CONFIG_SND_SOC_RK817)    += snd-soc-rk817.o
 obj-$(CONFIG_SND_SOC_RL6231)   += snd-soc-rl6231.o
@@ -613,6 +620,7 @@ obj-$(CONFIG_SND_SOC_TAS5805M)      += snd-so
 obj-$(CONFIG_SND_SOC_TAS6424)  += snd-soc-tas6424.o
 obj-$(CONFIG_SND_SOC_TDA7419)  += snd-soc-tda7419.o
 obj-$(CONFIG_SND_SOC_TAS2770) += snd-soc-tas2770.o
+obj-$(CONFIG_SND_SOC_TAS5713)  += snd-soc-tas5713.o
 obj-$(CONFIG_SND_SOC_TFA9879)  += snd-soc-tfa9879.o
 obj-$(CONFIG_SND_SOC_TFA989X)  += snd-soc-tfa989x.o
 obj-$(CONFIG_SND_SOC_TLV320ADC3XXX)    += snd-soc-tlv320adc3xxx.o
--- a/sound/soc/codecs/cs42xx8-i2c.c
+++ b/sound/soc/codecs/cs42xx8-i2c.c
@@ -42,11 +42,18 @@ static struct i2c_device_id cs42xx8_i2c_
 };
 MODULE_DEVICE_TABLE(i2c, cs42xx8_i2c_id);
 
+const struct of_device_id cs42xx8_i2c_of_match[] = {
+       { .compatible = "cirrus,cs42448", .data = &cs42448_data, },
+       { .compatible = "cirrus,cs42888", .data = &cs42888_data, },
+       { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, cs42xx8_i2c_of_match);
+
 static struct i2c_driver cs42xx8_i2c_driver = {
        .driver = {
                .name = "cs42xx8",
                .pm = &cs42xx8_pm,
-               .of_match_table = cs42xx8_of_match,
+               .of_match_table = cs42xx8_i2c_of_match,
        },
        .probe_new = cs42xx8_i2c_probe,
        .remove = cs42xx8_i2c_remove,
--- a/sound/soc/codecs/cs42xx8.c
+++ b/sound/soc/codecs/cs42xx8.c
@@ -516,8 +516,10 @@ const struct of_device_id cs42xx8_of_mat
        { .compatible = "cirrus,cs42888", .data = &cs42888_data, },
        { /* sentinel */ }
 };
+#if !IS_ENABLED(CONFIG_SND_SOC_CS42XX8_I2C)
 MODULE_DEVICE_TABLE(of, cs42xx8_of_match);
 EXPORT_SYMBOL_GPL(cs42xx8_of_match);
+#endif
 
 int cs42xx8_probe(struct device *dev, struct regmap *regmap)
 {
--- /dev/null
+++ b/sound/soc/codecs/i-sabre-codec.c
@@ -0,0 +1,390 @@
+/*
+ * Driver for I-Sabre Q2M
+ *
+ * Author: Satoru Kawase
+ * Modified by: Xiao Qingyong
+ * Modified by: JC BARBAUD (Mute)
+ * Update kernel v4.18+ by : Audiophonics
+ *             Copyright 2018 Audiophonics
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/i2c.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+#include <sound/tlv.h>
+
+#include "i-sabre-codec.h"
+
+
+/* I-Sabre Q2M Codec Private Data */
+struct i_sabre_codec_priv {
+       struct regmap *regmap;
+       unsigned int fmt;
+};
+
+
+/* I-Sabre Q2M Codec Default Register Value */
+static const struct reg_default i_sabre_codec_reg_defaults[] = {
+       { ISABRECODEC_REG_10, 0x00 },
+       { ISABRECODEC_REG_20, 0x00 },
+       { ISABRECODEC_REG_21, 0x00 },
+       { ISABRECODEC_REG_22, 0x00 },
+       { ISABRECODEC_REG_24, 0x00 },
+};
+
+
+static bool i_sabre_codec_writeable(struct device *dev, unsigned int reg)
+{
+       switch (reg) {
+       case ISABRECODEC_REG_10:
+       case ISABRECODEC_REG_20:
+       case ISABRECODEC_REG_21:
+       case ISABRECODEC_REG_22:
+       case ISABRECODEC_REG_24:
+               return true;
+
+       default:
+               return false;
+       }
+}
+
+static bool i_sabre_codec_readable(struct device *dev, unsigned int reg)
+{
+       switch (reg) {
+       case ISABRECODEC_REG_01:
+       case ISABRECODEC_REG_02:
+       case ISABRECODEC_REG_10:
+       case ISABRECODEC_REG_20:
+       case ISABRECODEC_REG_21:
+       case ISABRECODEC_REG_22:
+       case ISABRECODEC_REG_24:
+               return true;
+
+       default:
+               return false;
+       }
+}
+
+static bool i_sabre_codec_volatile(struct device *dev, unsigned int reg)
+{
+       switch (reg) {
+       case ISABRECODEC_REG_01:
+       case ISABRECODEC_REG_02:
+               return true;
+
+       default:
+               return false;
+       }
+}
+
+
+/* Volume Scale */
+static const DECLARE_TLV_DB_SCALE(volume_tlv, -10000, 100, 0);
+
+
+/* Filter Type */
+static const char * const fir_filter_type_texts[] = {
+       "brick wall",
+       "corrected minimum phase fast",
+       "minimum phase slow",
+       "minimum phase fast",
+       "linear phase slow",
+       "linear phase fast",
+       "apodizing fast",
+};
+
+static SOC_ENUM_SINGLE_DECL(i_sabre_fir_filter_type_enum,
+                               ISABRECODEC_REG_22, 0, fir_filter_type_texts);
+
+
+/* I2S / SPDIF Select */
+static const char * const iis_spdif_sel_texts[] = {
+       "I2S",
+       "SPDIF",
+};
+
+static SOC_ENUM_SINGLE_DECL(i_sabre_iis_spdif_sel_enum,
+                               ISABRECODEC_REG_24, 0, iis_spdif_sel_texts);
+
+
+/* Control */
+static const struct snd_kcontrol_new i_sabre_codec_controls[] = {
+SOC_SINGLE_RANGE_TLV("Digital Playback Volume", ISABRECODEC_REG_20, 0, 0, 100, 1, volume_tlv),
+SOC_SINGLE("Digital Playback Switch", ISABRECODEC_REG_21, 0, 1, 1),
+SOC_ENUM("FIR Filter Type", i_sabre_fir_filter_type_enum),
+SOC_ENUM("I2S/SPDIF Select", i_sabre_iis_spdif_sel_enum),
+};
+
+
+static const u32 i_sabre_codec_dai_rates_slave[] = {
+       8000, 11025, 16000, 22050, 32000,
+       44100, 48000, 64000, 88200, 96000,
+       176400, 192000, 352800, 384000,
+       705600, 768000, 1411200, 1536000
+};
+
+static const struct snd_pcm_hw_constraint_list constraints_slave = {
+       .list  = i_sabre_codec_dai_rates_slave,
+       .count = ARRAY_SIZE(i_sabre_codec_dai_rates_slave),
+};
+
+static int i_sabre_codec_dai_startup_slave(
+               struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+       struct snd_soc_component *component = dai->component;
+       int ret;
+
+       ret = snd_pcm_hw_constraint_list(substream->runtime,
+                       0, SNDRV_PCM_HW_PARAM_RATE, &constraints_slave);
+       if (ret != 0) {
+               dev_err(component->card->dev, "Failed to setup rates constraints: %d\n", ret);
+       }
+
+       return ret;
+}
+
+static int i_sabre_codec_dai_startup(
+               struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+       struct snd_soc_component      *component = dai->component;
+       struct i_sabre_codec_priv *i_sabre_codec
+                                       = snd_soc_component_get_drvdata(component);
+
+       switch (i_sabre_codec->fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+       case SND_SOC_DAIFMT_CBS_CFS:
+               return i_sabre_codec_dai_startup_slave(substream, dai);
+
+       default:
+               return (-EINVAL);
+       }
+}
+
+static int i_sabre_codec_hw_params(
+       struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params,
+       struct snd_soc_dai *dai)
+{
+       struct snd_soc_component      *component = dai->component;
+       struct i_sabre_codec_priv *i_sabre_codec
+                                       = snd_soc_component_get_drvdata(component);
+       unsigned int daifmt;
+       int format_width;
+
+       dev_dbg(component->card->dev, "hw_params %u Hz, %u channels\n",
+                       params_rate(params), params_channels(params));
+
+       /* Check I2S Format (Bit Size) */
+       format_width = snd_pcm_format_width(params_format(params));
+       if ((format_width != 32) && (format_width != 16)) {
+               dev_err(component->card->dev, "Bad frame size: %d\n",
+                               snd_pcm_format_width(params_format(params)));
+               return (-EINVAL);
+       }
+
+       /* Check Slave Mode */
+       daifmt = i_sabre_codec->fmt & SND_SOC_DAIFMT_MASTER_MASK;
+       if (daifmt != SND_SOC_DAIFMT_CBS_CFS) {
+               return (-EINVAL);
+       }
+
+       /* Notify Sampling Frequency  */
+       switch (params_rate(params))
+       {
+       case 44100:
+       case 48000:
+       case 88200:
+       case 96000:
+       case 176400:
+       case 192000:
+               snd_soc_component_update_bits(component, ISABRECODEC_REG_10, 0x01, 0x00);
+               break;
+
+       case 352800:
+       case 384000:
+       case 705600:
+       case 768000:
+       case 1411200:
+       case 1536000:
+               snd_soc_component_update_bits(component, ISABRECODEC_REG_10, 0x01, 0x01);
+               break;
+       }
+
+       return 0;
+}
+
+static int i_sabre_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+       struct snd_soc_component      *component = dai->component;
+       struct i_sabre_codec_priv *i_sabre_codec
+                                       = snd_soc_component_get_drvdata(component);
+
+       /* interface format */
+       switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+       case SND_SOC_DAIFMT_I2S:
+               break;
+
+       case SND_SOC_DAIFMT_RIGHT_J:
+       case SND_SOC_DAIFMT_LEFT_J:
+       default:
+               return (-EINVAL);
+       }
+
+       /* clock inversion */
+       if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) {
+               return (-EINVAL);
+       }
+
+       /* Set Audio Data Format */
+       i_sabre_codec->fmt = fmt;
+
+       return 0;
+}
+
+static int i_sabre_codec_dac_mute(struct snd_soc_dai *dai, int mute, int direction)
+{
+       struct snd_soc_component *component = dai->component;
+
+       if (mute) {
+               snd_soc_component_update_bits(component, ISABRECODEC_REG_21, 0x01, 0x01);
+       } else {
+               snd_soc_component_update_bits(component, ISABRECODEC_REG_21, 0x01, 0x00);
+       }
+
+       return 0;
+}
+
+
+static const struct snd_soc_dai_ops i_sabre_codec_dai_ops = {
+       .startup      = i_sabre_codec_dai_startup,
+       .hw_params    = i_sabre_codec_hw_params,
+       .set_fmt      = i_sabre_codec_set_fmt,
+       .mute_stream  = i_sabre_codec_dac_mute,
+};
+
+static struct snd_soc_dai_driver i_sabre_codec_dai = {
+       .name = "i-sabre-codec-dai",
+       .playback = {
+               .stream_name  = "Playback",
+               .channels_min = 2,
+               .channels_max = 2,
+               .rates = SNDRV_PCM_RATE_CONTINUOUS,
+               .rate_min = 8000,
+               .rate_max = 1536000,
+               .formats      = SNDRV_PCM_FMTBIT_S16_LE
+                               | SNDRV_PCM_FMTBIT_S32_LE,
+       },
+       .ops = &i_sabre_codec_dai_ops,
+};
+
+static struct snd_soc_component_driver i_sabre_codec_codec_driver = {
+               .controls         = i_sabre_codec_controls,
+               .num_controls     = ARRAY_SIZE(i_sabre_codec_controls),
+};
+
+
+static const struct regmap_config i_sabre_codec_regmap = {
+       .reg_bits         = 8,
+       .val_bits         = 8,
+       .max_register     = ISABRECODEC_MAX_REG,
+
+       .reg_defaults     = i_sabre_codec_reg_defaults,
+       .num_reg_defaults = ARRAY_SIZE(i_sabre_codec_reg_defaults),
+
+       .writeable_reg    = i_sabre_codec_writeable,
+       .readable_reg     = i_sabre_codec_readable,
+       .volatile_reg     = i_sabre_codec_volatile,
+
+       .cache_type       = REGCACHE_RBTREE,
+};
+
+
+static int i_sabre_codec_probe(struct device *dev, struct regmap *regmap)
+{
+       struct i_sabre_codec_priv *i_sabre_codec;
+       int ret;
+
+       i_sabre_codec = devm_kzalloc(dev, sizeof(*i_sabre_codec), GFP_KERNEL);
+       if (!i_sabre_codec) {
+               dev_err(dev, "devm_kzalloc");
+               return (-ENOMEM);
+       }
+
+       i_sabre_codec->regmap = regmap;
+
+       dev_set_drvdata(dev, i_sabre_codec);
+
+       ret = snd_soc_register_component(dev,
+                       &i_sabre_codec_codec_driver, &i_sabre_codec_dai, 1);
+       if (ret != 0) {
+               dev_err(dev, "Failed to register CODEC: %d\n", ret);
+               return ret;
+       }
+
+       return 0;
+}
+
+static void i_sabre_codec_remove(struct device *dev)
+{
+       snd_soc_unregister_component(dev);
+}
+
+
+static int i_sabre_codec_i2c_probe(
+               struct i2c_client *i2c, const struct i2c_device_id *id)
+{
+       struct regmap *regmap;
+
+       regmap = devm_regmap_init_i2c(i2c, &i_sabre_codec_regmap);
+       if (IS_ERR(regmap)) {
+               return PTR_ERR(regmap);
+       }
+
+       return i_sabre_codec_probe(&i2c->dev, regmap);
+}
+
+static void i_sabre_codec_i2c_remove(struct i2c_client *i2c)
+{
+       i_sabre_codec_remove(&i2c->dev);
+}
+
+
+static const struct i2c_device_id i_sabre_codec_i2c_id[] = {
+       { "i-sabre-codec", },
+       { }
+};
+MODULE_DEVICE_TABLE(i2c, i_sabre_codec_i2c_id);
+
+static const struct of_device_id i_sabre_codec_of_match[] = {
+       { .compatible = "audiophonics,i-sabre-codec", },
+       { }
+};
+MODULE_DEVICE_TABLE(of, i_sabre_codec_of_match);
+
+static struct i2c_driver i_sabre_codec_i2c_driver = {
+       .driver = {
+               .name           = "i-sabre-codec-i2c",
+               .owner          = THIS_MODULE,
+               .of_match_table = of_match_ptr(i_sabre_codec_of_match),
+       },
+       .probe    = i_sabre_codec_i2c_probe,
+       .remove   = i_sabre_codec_i2c_remove,
+       .id_table = i_sabre_codec_i2c_id,
+};
+module_i2c_driver(i_sabre_codec_i2c_driver);
+
+
+MODULE_DESCRIPTION("ASoC I-Sabre Q2M codec driver");
+MODULE_AUTHOR("Audiophonics <http://www.audiophonics.fr>");
+MODULE_LICENSE("GPL");
--- /dev/null
+++ b/sound/soc/codecs/i-sabre-codec.h
@@ -0,0 +1,42 @@
+/*
+ * Driver for I-Sabre Q2M
+ *
+ * Author: Satoru Kawase
+ * Modified by: Xiao Qingyong
+ *      Copyright 2018 Audiophonics
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef _SND_SOC_ISABRECODEC
+#define _SND_SOC_ISABRECODEC
+
+
+/* ISABRECODEC Register Address */
+#define ISABRECODEC_REG_01     0x01    /* Virtual Device ID  :  0x01 = es9038q2m */
+#define ISABRECODEC_REG_02     0x02    /* API revision       :  0x01 = Revision 01 */
+#define ISABRECODEC_REG_10     0x10    /* 0x01 = above 192kHz, 0x00 = otherwise */
+#define ISABRECODEC_REG_20     0x20    /* 0 - 100 (decimal value, 0 = min., 100 = max.) */
+#define ISABRECODEC_REG_21     0x21    /* 0x00 = Mute OFF, 0x01 = Mute ON */
+#define ISABRECODEC_REG_22     0x22    
+/*
+   0x00 = brick wall,
+   0x01 = corrected minimum phase fast,
+   0x02 = minimum phase slow,
+   0x03 = minimum phase fast,
+   0x04 = linear phase slow,
+   0x05 = linear phase fast,
+   0x06 = apodizing fast,
+*/
+//#define ISABRECODEC_REG_23   0x23    /* reserved */
+#define ISABRECODEC_REG_24     0x24    /* 0x00 = I2S, 0x01 = SPDIF */
+#define ISABRECODEC_MAX_REG    0x24    /* Maximum Register Number */
+
+#endif /* _SND_SOC_ISABRECODEC */
--- /dev/null
+++ b/sound/soc/codecs/ma120x0p.c
@@ -0,0 +1,1381 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * ASoC Driver for Infineon Merus(TM) ma120x0p multi-level class-D amplifier
+ *
+ * Authors:    Ariel Muszkat <ariel.muszkat@gmail.com>
+ * Jorgen Kragh Jakobsen <jorgen.kraghjakobsen@infineon.com>
+ *
+ * Copyright (C) 2019 Infineon Technologies AG
+ *
+ */
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm_runtime.h>
+#include <linux/i2c.h>
+#include <linux/of_device.h>
+#include <linux/spi/spi.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/gpio/consumer.h>
+#include <linux/gpio.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+#include <linux/interrupt.h>
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/fs.h>
+#include <linux/uaccess.h>
+
+#ifndef _MA120X0P_
+#define _MA120X0P_
+//------------------------------------------------------------------manualPM---
+// Select Manual PowerMode control
+#define ma_manualpm__a 0
+#define ma_manualpm__len 1
+#define ma_manualpm__mask 0x40
+#define ma_manualpm__shift 0x06
+#define ma_manualpm__reset 0x00
+//--------------------------------------------------------------------pm_man---
+// manual selected power mode
+#define ma_pm_man__a 0
+#define ma_pm_man__len 2
+#define ma_pm_man__mask 0x30
+#define ma_pm_man__shift 0x04
+#define ma_pm_man__reset 0x03
+//------------------------------------------ ----------------------mthr_1to2---
+// mod. index threshold value for pm1=>pm2 change.
+#define ma_mthr_1to2__a 1
+#define ma_mthr_1to2__len 8
+#define ma_mthr_1to2__mask 0xff
+#define ma_mthr_1to2__shift 0x00
+#define ma_mthr_1to2__reset 0x3c
+//-----------------------------------------------------------------mthr_2to1---
+// mod. index threshold value for pm2=>pm1 change.
+#define ma_mthr_2to1__a 2
+#define ma_mthr_2to1__len 8
+#define ma_mthr_2to1__mask 0xff
+#define ma_mthr_2to1__shift 0x00
+#define ma_mthr_2to1__reset 0x32
+//-----------------------------------------------------------------mthr_2to3---
+// mod. index threshold value for pm2=>pm3 change.
+#define ma_mthr_2to3__a 3
+#define ma_mthr_2to3__len 8
+#define ma_mthr_2to3__mask 0xff
+#define ma_mthr_2to3__shift 0x00
+#define ma_mthr_2to3__reset 0x5a
+//-----------------------------------------------------------------mthr_3to2---
+// mod. index threshold value for pm3=>pm2 change.
+#define ma_mthr_3to2__a 4
+#define ma_mthr_3to2__len 8
+#define ma_mthr_3to2__mask 0xff
+#define ma_mthr_3to2__shift 0x00
+#define ma_mthr_3to2__reset 0x50
+//-------------------------------------------------------------pwmclkdiv_nom---
+// pwm default clock divider value
+#define ma_pwmclkdiv_nom__a 8
+#define ma_pwmclkdiv_nom__len 8
+#define ma_pwmclkdiv_nom__mask 0xff
+#define ma_pwmclkdiv_nom__shift 0x00
+#define ma_pwmclkdiv_nom__reset 0x26
+//--------- ----------------------------------------------------ocp_latch_en---
+// high to use permanently latching level-2 ocp
+#define ma_ocp_latch_en__a 10
+#define ma_ocp_latch_en__len 1
+#define ma_ocp_latch_en__mask 0x02
+#define ma_ocp_latch_en__shift 0x01
+#define ma_ocp_latch_en__reset 0x00
+//---------------------------------------------------------------lf_clamp_en---
+// high (default) to enable lf int2+3 clamping on clip
+#define ma_lf_clamp_en__a 10
+#define ma_lf_clamp_en__len 1
+#define ma_lf_clamp_en__mask 0x80
+#define ma_lf_clamp_en__shift 0x07
+#define ma_lf_clamp_en__reset 0x00
+//-------------------------------------------------------pmcfg_btl_b.modtype---
+//
+#define ma_pmcfg_btl_b__modtype__a 18
+#define ma_pmcfg_btl_b__modtype__len 2
+#define ma_pmcfg_btl_b__modtype__mask 0x18
+#define ma_pmcfg_btl_b__modtype__shift 0x03
+#define ma_pmcfg_btl_b__modtype__reset 0x02
+//-------------------------------------------------------pmcfg_btl_b.freqdiv---
+#define ma_pmcfg_btl_b__freqdiv__a 18
+#define ma_pmcfg_btl_b__freqdiv__len 2
+#define ma_pmcfg_btl_b__freqdiv__mask 0x06
+#define ma_pmcfg_btl_b__freqdiv__shift 0x01
+#define ma_pmcfg_btl_b__freqdiv__reset 0x01
+//----------------------------------------------------pmcfg_btl_b.lf_gain_ol---
+//
+#define ma_pmcfg_btl_b__lf_gain_ol__a 18
+#define ma_pmcfg_btl_b__lf_gain_ol__len 1
+#define ma_pmcfg_btl_b__lf_gain_ol__mask 0x01
+#define ma_pmcfg_btl_b__lf_gain_ol__shift 0x00
+#define ma_pmcfg_btl_b__lf_gain_ol__reset 0x01
+//-------------------------------------------------------pmcfg_btl_c.freqdiv---
+//
+#define ma_pmcfg_btl_c__freqdiv__a 19
+#define ma_pmcfg_btl_c__freqdiv__len 2
+#define ma_pmcfg_btl_c__freqdiv__mask 0x06
+#define ma_pmcfg_btl_c__freqdiv__shift 0x01
+#define ma_pmcfg_btl_c__freqdiv__reset 0x01
+//-------------------------------------------------------pmcfg_btl_c.modtype---
+//
+#define ma_pmcfg_btl_c__modtype__a 19
+#define ma_pmcfg_btl_c__modtype__len 2
+#define ma_pmcfg_btl_c__modtype__mask 0x18
+#define ma_pmcfg_btl_c__modtype__shift 0x03
+#define ma_pmcfg_btl_c__modtype__reset 0x01
+//----------------------------------------------------pmcfg_btl_c.lf_gain_ol---
+//
+#define ma_pmcfg_btl_c__lf_gain_ol__a 19
+#define ma_pmcfg_btl_c__lf_gain_ol__len 1
+#define ma_pmcfg_btl_c__lf_gain_ol__mask 0x01
+#define ma_pmcfg_btl_c__lf_gain_ol__shift 0x00
+#define ma_pmcfg_btl_c__lf_gain_ol__reset 0x00
+//-------------------------------------------------------pmcfg_btl_d.modtype---
+//
+#define ma_pmcfg_btl_d__modtype__a 20
+#define ma_pmcfg_btl_d__modtype__len 2
+#define ma_pmcfg_btl_d__modtype__mask 0x18
+#define ma_pmcfg_btl_d__modtype__shift 0x03
+#define ma_pmcfg_btl_d__modtype__reset 0x02
+//-------------------------------------------------------pmcfg_btl_d.freqdiv---
+//
+#define ma_pmcfg_btl_d__freqdiv__a 20
+#define ma_pmcfg_btl_d__freqdiv__len 2
+#define ma_pmcfg_btl_d__freqdiv__mask 0x06
+#define ma_pmcfg_btl_d__freqdiv__shift 0x01
+#define ma_pmcfg_btl_d__freqdiv__reset 0x02
+//----------------------------------------------------pmcfg_btl_d.lf_gain_ol---
+//
+#define ma_pmcfg_btl_d__lf_gain_ol__a 20
+#define ma_pmcfg_btl_d__lf_gain_ol__len 1
+#define ma_pmcfg_btl_d__lf_gain_ol__mask 0x01
+#define ma_pmcfg_btl_d__lf_gain_ol__shift 0x00
+#define ma_pmcfg_btl_d__lf_gain_ol__reset 0x00
+//------------ -------------------------------------------pmcfg_se_a.modtype---
+//
+#define ma_pmcfg_se_a__modtype__a 21
+#define ma_pmcfg_se_a__modtype__len 2
+#define ma_pmcfg_se_a__modtype__mask 0x18
+#define ma_pmcfg_se_a__modtype__shift 0x03
+#define ma_pmcfg_se_a__modtype__reset 0x01
+//--------------------------------------------------------pmcfg_se_a.freqdiv---
+//
+#define ma_pmcfg_se_a__freqdiv__a 21
+#define ma_pmcfg_se_a__freqdiv__len 2
+#define ma_pmcfg_se_a__freqdiv__mask 0x06
+#define ma_pmcfg_se_a__freqdiv__shift 0x01
+#define ma_pmcfg_se_a__freqdiv__reset 0x00
+//-----------------------------------------------------pmcfg_se_a.lf_gain_ol---
+//
+#define ma_pmcfg_se_a__lf_gain_ol__a 21
+#define ma_pmcfg_se_a__lf_gain_ol__len 1
+#define ma_pmcfg_se_a__lf_gain_ol__mask 0x01
+#define ma_pmcfg_se_a__lf_gain_ol__shift 0x00
+#define ma_pmcfg_se_a__lf_gain_ol__reset 0x01
+//-----------------------------------------------------pmcfg_se_b.lf_gain_ol---
+//
+#define ma_pmcfg_se_b__lf_gain_ol__a 22
+#define ma_pmcfg_se_b__lf_gain_ol__len 1
+#define ma_pmcfg_se_b__lf_gain_ol__mask 0x01
+#define ma_pmcfg_se_b__lf_gain_ol__shift 0x00
+#define ma_pmcfg_se_b__lf_gain_ol__reset 0x00
+//--------------------------------------------------------pmcfg_se_b.freqdiv---
+//
+#define ma_pmcfg_se_b__freqdiv__a 22
+#define ma_pmcfg_se_b__freqdiv__len 2
+#define ma_pmcfg_se_b__freqdiv__mask 0x06
+#define ma_pmcfg_se_b__freqdiv__shift 0x01
+#define ma_pmcfg_se_b__freqdiv__reset 0x01
+//--------------------------------------------------------pmcfg_se_b.modtype---
+//
+#define ma_pmcfg_se_b__modtype__a 22
+#define ma_pmcfg_se_b__modtype__len 2
+#define ma_pmcfg_se_b__modtype__mask 0x18
+#define ma_pmcfg_se_b__modtype__shift 0x03
+#define ma_pmcfg_se_b__modtype__reset 0x01
+//----------------------------------------------------------balwaitcount_pm1---
+// pm1 balancing period.
+#define ma_balwaitcount_pm1__a 23
+#define ma_balwaitcount_pm1__len 8
+#define ma_balwaitcount_pm1__mask 0xff
+#define ma_balwaitcount_pm1__shift 0x00
+#define ma_balwaitcount_pm1__reset 0x14
+//----------------------------------------------------------balwaitcount_pm2---
+// pm2 balancing period.
+#define ma_balwaitcount_pm2__a 24
+#define ma_balwaitcount_pm2__len 8
+#define ma_balwaitcount_pm2__mask 0xff
+#define ma_balwaitcount_pm2__shift 0x00
+#define ma_balwaitcount_pm2__reset 0x14
+//----------------------------------------------------------balwaitcount_pm3---
+// pm3 balancing period.
+#define ma_balwaitcount_pm3__a 25
+#define ma_balwaitcount_pm3__len 8
+#define ma_balwaitcount_pm3__mask 0xff
+#define ma_balwaitcount_pm3__shift 0x00
+#define ma_balwaitcount_pm3__reset 0x1a
+//-------------------------------------------------------------usespread_pm1---
+// pm1 pwm spread-spectrum mode on/off.
+#define ma_usespread_pm1__a 26
+#define ma_usespread_pm1__len 1
+#define ma_usespread_pm1__mask 0x40
+#define ma_usespread_pm1__shift 0x06
+#define ma_usespread_pm1__reset 0x00
+//---------------------------------------------------------------dtsteps_pm1---
+// pm1 dead time setting [10ns steps].
+#define ma_dtsteps_pm1__a 26
+#define ma_dtsteps_pm1__len 3
+#define ma_dtsteps_pm1__mask 0x38
+#define ma_dtsteps_pm1__shift 0x03
+#define ma_dtsteps_pm1__reset 0x04
+//---------------------------------------------------------------baltype_pm1---
+// pm1 balancing sensor scheme.
+#define ma_baltype_pm1__a 26
+#define ma_baltype_pm1__len 3
+#define ma_baltype_pm1__mask 0x07
+#define ma_baltype_pm1__shift 0x00
+#define ma_baltype_pm1__reset 0x00
+//-------------------------------------------------------------usespread_pm2---
+// pm2 pwm spread-spectrum mode on/off.
+#define ma_usespread_pm2__a 27
+#define ma_usespread_pm2__len 1
+#define ma_usespread_pm2__mask 0x40
+#define ma_usespread_pm2__shift 0x06
+#define ma_usespread_pm2__reset 0x00
+//---------------------------------------------------------------dtsteps_pm2---
+// pm2 dead time setting [10ns steps].
+#define ma_dtsteps_pm2__a 27
+#define ma_dtsteps_pm2__len 3
+#define ma_dtsteps_pm2__mask 0x38
+#define ma_dtsteps_pm2__shift 0x03
+#define ma_dtsteps_pm2__reset 0x03
+//---------------------------------------------------------------baltype_pm2---
+// pm2 balancing sensor scheme.
+#define ma_baltype_pm2__a 27
+#define ma_baltype_pm2__len 3
+#define ma_baltype_pm2__mask 0x07
+#define ma_baltype_pm2__shift 0x00
+#define ma_baltype_pm2__reset 0x01
+//-------------------------------------------------------------usespread_pm3---
+// pm3 pwm spread-spectrum mode on/off.
+#define ma_usespread_pm3__a 28
+#define ma_usespread_pm3__len 1
+#define ma_usespread_pm3__mask 0x40
+#define ma_usespread_pm3__shift 0x06
+#define ma_usespread_pm3__reset 0x00
+//---------------------------------------------------------------dtsteps_pm3---
+// pm3 dead time setting [10ns steps].
+#define ma_dtsteps_pm3__a 28
+#define ma_dtsteps_pm3__len 3
+#define ma_dtsteps_pm3__mask 0x38
+#define ma_dtsteps_pm3__shift 0x03
+#define ma_dtsteps_pm3__reset 0x01
+//---------------------------------------------------------------baltype_pm3---
+// pm3 balancing sensor scheme.
+#define ma_baltype_pm3__a 28
+#define ma_baltype_pm3__len 3
+#define ma_baltype_pm3__mask 0x07
+#define ma_baltype_pm3__shift 0x00
+#define ma_baltype_pm3__reset 0x03
+//-----------------------------------------------------------------pmprofile---
+// pm profile select. valid presets: 0-1-2-3-4. 5=> custom profile.
+#define ma_pmprofile__a 29
+#define ma_pmprofile__len 3
+#define ma_pmprofile__mask 0x07
+#define ma_pmprofile__shift 0x00
+#define ma_pmprofile__reset 0x00
+//-------------------------------------------------------------------pm3_man---
+// custom profile pm3 contents. 0=>a,  1=>b,  2=>c,  3=>d
+#define ma_pm3_man__a 30
+#define ma_pm3_man__len 2
+#define ma_pm3_man__mask 0x30
+#define ma_pm3_man__shift 0x04
+#define ma_pm3_man__reset 0x02
+//-------------------------------------------------------------------pm2_man---
+// custom profile pm2 contents. 0=>a,  1=>b,  2=>c,  3=>d
+#define ma_pm2_man__a 30
+#define ma_pm2_man__len 2
+#define ma_pm2_man__mask 0x0c
+#define ma_pm2_man__shift 0x02
+#define ma_pm2_man__reset 0x03
+//-------------------------------------------------------------------pm1_man---
+// custom profile pm1 contents. 0=>a,  1=>b,  2=>c,  3=>d
+#define ma_pm1_man__a 30
+#define ma_pm1_man__len 2
+#define ma_pm1_man__mask 0x03
+#define ma_pm1_man__shift 0x00
+#define ma_pm1_man__reset 0x03
+//-----------------------------------------------------------ocp_latch_clear---
+// low-high clears current ocp latched condition.
+#define ma_ocp_latch_clear__a 32
+#define ma_ocp_latch_clear__len 1
+#define ma_ocp_latch_clear__mask 0x80
+#define ma_ocp_latch_clear__shift 0x07
+#define ma_ocp_latch_clear__reset 0x00
+//-------------------------------------------------------------audio_in_mode---
+// audio input mode; 0-1-2-3-4-5
+#define ma_audio_in_mode__a 37
+#define ma_audio_in_mode__len 3
+#define ma_audio_in_mode__mask 0xe0
+#define ma_audio_in_mode__shift 0x05
+#define ma_audio_in_mode__reset 0x00
+//-----------------------------------------------------------------eh_dcshdn---
+// high to enable dc protection
+#define ma_eh_dcshdn__a 38
+#define ma_eh_dcshdn__len 1
+#define ma_eh_dcshdn__mask 0x04
+#define ma_eh_dcshdn__shift 0x02
+#define ma_eh_dcshdn__reset 0x01
+//---------------------------------------------------------audio_in_mode_ext---
+// if set,  audio_in_mode is controlled from audio_in_mode register. if not set
+//audio_in_mode is set from fuse bank setting
+#define ma_audio_in_mode_ext__a 39
+#define ma_audio_in_mode_ext__len 1
+#define ma_audio_in_mode_ext__mask 0x20
+#define ma_audio_in_mode_ext__shift 0x05
+#define ma_audio_in_mode_ext__reset 0x00
+//------------------------------------------------------------------eh_clear---
+// flip to clear error registers
+#define ma_eh_clear__a 45
+#define ma_eh_clear__len 1
+#define ma_eh_clear__mask 0x04
+#define ma_eh_clear__shift 0x02
+#define ma_eh_clear__reset 0x00
+//----------------------------------------------------------thermal_compr_en---
+// enable otw-contr.  input compression?
+#define ma_thermal_compr_en__a 45
+#define ma_thermal_compr_en__len 1
+#define ma_thermal_compr_en__mask 0x20
+#define ma_thermal_compr_en__shift 0x05
+#define ma_thermal_compr_en__reset 0x01
+//---------------------------------------------------------------system_mute---
+// 1 = mute system,  0 = normal operation
+#define ma_system_mute__a 45
+#define ma_system_mute__len 1
+#define ma_system_mute__mask 0x40
+#define ma_system_mute__shift 0x06
+#define ma_system_mute__reset 0x00
+//------------------------------------------------------thermal_compr_max_db---
+// audio limiter max thermal reduction
+#define ma_thermal_compr_max_db__a 46
+#define ma_thermal_compr_max_db__len 3
+#define ma_thermal_compr_max_db__mask 0x07
+#define ma_thermal_compr_max_db__shift 0x00
+#define ma_thermal_compr_max_db__reset 0x04
+//---------------------------------------------------------audio_proc_enable---
+// enable audio proc,  bypass if not enabled
+#define ma_audio_proc_enable__a 53
+#define ma_audio_proc_enable__len 1
+#define ma_audio_proc_enable__mask 0x08
+#define ma_audio_proc_enable__shift 0x03
+#define ma_audio_proc_enable__reset 0x00
+//--------------------------------------------------------audio_proc_release---
+// 00:slow,  01:normal,  10:fast
+#define ma_audio_proc_release__a 53
+#define ma_audio_proc_release__len 2
+#define ma_audio_proc_release__mask 0x30
+#define ma_audio_proc_release__shift 0x04
+#define ma_audio_proc_release__reset 0x00
+//---------------------------------------------------------audio_proc_attack---
+// 00:slow,  01:normal,  10:fast
+#define ma_audio_proc_attack__a 53
+#define ma_audio_proc_attack__len 2
+#define ma_audio_proc_attack__mask 0xc0
+#define ma_audio_proc_attack__shift 0x06
+#define ma_audio_proc_attack__reset 0x00
+//----------------------------------------------------------------i2s_format---
+// i2s basic data format,  000 = std. i2s,  001 = left justified (default)
+#define ma_i2s_format__a 53
+#define ma_i2s_format__len 3
+#define ma_i2s_format__mask 0x07
+#define ma_i2s_format__shift 0x00
+#define ma_i2s_format__reset 0x01
+//--------------------------------------------------audio_proc_limiterenable---
+// 1: enable limiter,  0: disable limiter
+#define ma_audio_proc_limiterenable__a 54
+#define ma_audio_proc_limiterenable__len 1
+#define ma_audio_proc_limiterenable__mask 0x40
+#define ma_audio_proc_limiterenable__shift 0x06
+#define ma_audio_proc_limiterenable__reset 0x00
+//-----------------------------------------------------------audio_proc_mute---
+// 1: mute,  0: unmute
+#define ma_audio_proc_mute__a 54
+#define ma_audio_proc_mute__len 1
+#define ma_audio_proc_mute__mask 0x80
+#define ma_audio_proc_mute__shift 0x07
+#define ma_audio_proc_mute__reset 0x00
+//---------------------------------------------------------------i2s_sck_pol---
+// i2s sck polarity cfg. 0 = rising edge data change
+#define ma_i2s_sck_pol__a 54
+#define ma_i2s_sck_pol__len 1
+#define ma_i2s_sck_pol__mask 0x01
+#define ma_i2s_sck_pol__shift 0x00
+#define ma_i2s_sck_pol__reset 0x01
+//-------------------------------------------------------------i2s_framesize---
+// i2s word length. 00 = 32bit,  01 = 24bit
+#define ma_i2s_framesize__a 54
+#define ma_i2s_framesize__len 2
+#define ma_i2s_framesize__mask 0x18
+#define ma_i2s_framesize__shift 0x03
+#define ma_i2s_framesize__reset 0x00
+//----------------------------------------------------------------i2s_ws_pol---
+// i2s ws polarity. 0 = low first
+#define ma_i2s_ws_pol__a 54
+#define ma_i2s_ws_pol__len 1
+#define ma_i2s_ws_pol__mask 0x02
+#define ma_i2s_ws_pol__shift 0x01
+#define ma_i2s_ws_pol__reset 0x00
+//-----------------------------------------------------------------i2s_order---
+// i2s word bit order. 0 = msb first
+#define ma_i2s_order__a 54
+#define ma_i2s_order__len 1
+#define ma_i2s_order__mask 0x04
+#define ma_i2s_order__shift 0x02
+#define ma_i2s_order__reset 0x00
+//------------------------------------------------------------i2s_rightfirst---
+// i2s l/r word order; 0 = left first
+#define ma_i2s_rightfirst__a 54
+#define ma_i2s_rightfirst__len 1
+#define ma_i2s_rightfirst__mask 0x20
+#define ma_i2s_rightfirst__shift 0x05
+#define ma_i2s_rightfirst__reset 0x00
+//-------------------------------------------------------------vol_db_master---
+// master volume db
+#define ma_vol_db_master__a 64
+#define ma_vol_db_master__len 8
+#define ma_vol_db_master__mask 0xff
+#define ma_vol_db_master__shift 0x00
+#define ma_vol_db_master__reset 0x18
+//------------------------------------------------------------vol_lsb_master---
+// master volume lsb 1/4 steps
+#define ma_vol_lsb_master__a 65
+#define ma_vol_lsb_master__len 2
+#define ma_vol_lsb_master__mask 0x03
+#define ma_vol_lsb_master__shift 0x00
+#define ma_vol_lsb_master__reset 0x00
+//----------------------------------------------------------------vol_db_ch0---
+// volume channel 0
+#define ma_vol_db_ch0__a 66
+#define ma_vol_db_ch0__len 8
+#define ma_vol_db_ch0__mask 0xff
+#define ma_vol_db_ch0__shift 0x00
+#define ma_vol_db_ch0__reset 0x18
+//----------------------------------------------------------------vol_db_ch1---
+// volume channel 1
+#define ma_vol_db_ch1__a 67
+#define ma_vol_db_ch1__len 8
+#define ma_vol_db_ch1__mask 0xff
+#define ma_vol_db_ch1__shift 0x00
+#define ma_vol_db_ch1__reset 0x18
+//----------------------------------------------------------------vol_db_ch2---
+// volume channel 2
+#define ma_vol_db_ch2__a 68
+#define ma_vol_db_ch2__len 8
+#define ma_vol_db_ch2__mask 0xff
+#define ma_vol_db_ch2__shift 0x00
+#define ma_vol_db_ch2__reset 0x18
+//----------------------------------------------------------------vol_db_ch3---
+// volume channel 3
+#define ma_vol_db_ch3__a 69
+#define ma_vol_db_ch3__len 8
+#define ma_vol_db_ch3__mask 0xff
+#define ma_vol_db_ch3__shift 0x00
+#define ma_vol_db_ch3__reset 0x18
+//---------------------------------------------------------------vol_lsb_ch0---
+// volume channel 1 - 1/4 steps
+#define ma_vol_lsb_ch0__a 70
+#define ma_vol_lsb_ch0__len 2
+#define ma_vol_lsb_ch0__mask 0x03
+#define ma_vol_lsb_ch0__shift 0x00
+#define ma_vol_lsb_ch0__reset 0x00
+//---------------------------------------------------------------vol_lsb_ch1---
+// volume channel 3 - 1/4 steps
+#define ma_vol_lsb_ch1__a 70
+#define ma_vol_lsb_ch1__len 2
+#define ma_vol_lsb_ch1__mask 0x0c
+#define ma_vol_lsb_ch1__shift 0x02
+#define ma_vol_lsb_ch1__reset 0x00
+//---------------------------------------------------------------vol_lsb_ch2---
+// volume channel 2 - 1/4 steps
+#define ma_vol_lsb_ch2__a 70
+#define ma_vol_lsb_ch2__len 2
+#define ma_vol_lsb_ch2__mask 0x30
+#define ma_vol_lsb_ch2__shift 0x04
+#define ma_vol_lsb_ch2__reset 0x00
+//---------------------------------------------------------------vol_lsb_ch3---
+// volume channel 3 - 1/4 steps
+#define ma_vol_lsb_ch3__a 70
+#define ma_vol_lsb_ch3__len 2
+#define ma_vol_lsb_ch3__mask 0xc0
+#define ma_vol_lsb_ch3__shift 0x06
+#define ma_vol_lsb_ch3__reset 0x00
+//----------------------------------------------------------------thr_db_ch0---
+// thr_db channel 0
+#define ma_thr_db_ch0__a 71
+#define ma_thr_db_ch0__len 8
+#define ma_thr_db_ch0__mask 0xff
+#define ma_thr_db_ch0__shift 0x00
+#define ma_thr_db_ch0__reset 0x18
+//----------------------------------------------------------------thr_db_ch1---
+// thr db ch1
+#define ma_thr_db_ch1__a 72
+#define ma_thr_db_ch1__len 8
+#define ma_thr_db_ch1__mask 0xff
+#define ma_thr_db_ch1__shift 0x00
+#define ma_thr_db_ch1__reset 0x18
+//----------------------------------------------------------------thr_db_ch2---
+// thr db ch2
+#define ma_thr_db_ch2__a 73
+#define ma_thr_db_ch2__len 8
+#define ma_thr_db_ch2__mask 0xff
+#define ma_thr_db_ch2__shift 0x00
+#define ma_thr_db_ch2__reset 0x18
+//----------------------------------------------------------------thr_db_ch3---
+// threshold db ch3
+#define ma_thr_db_ch3__a 74
+#define ma_thr_db_ch3__len 8
+#define ma_thr_db_ch3__mask 0xff
+#define ma_thr_db_ch3__shift 0x00
+#define ma_thr_db_ch3__reset 0x18
+//---------------------------------------------------------------thr_lsb_ch0---
+// thr lsb ch0
+#define ma_thr_lsb_ch0__a 75
+#define ma_thr_lsb_ch0__len 2
+#define ma_thr_lsb_ch0__mask 0x03
+#define ma_thr_lsb_ch0__shift 0x00
+#define ma_thr_lsb_ch0__reset 0x00
+//---------------------------------------------------------------thr_lsb_ch1---
+// thr lsb ch1
+#define ma_thr_lsb_ch1__a 75
+#define ma_thr_lsb_ch1__len 2
+#define ma_thr_lsb_ch1__mask 0x0c
+#define ma_thr_lsb_ch1__shift 0x02
+#define ma_thr_lsb_ch1__reset 0x00
+//---------------------------------------------------------------thr_lsb_ch2---
+// thr lsb ch2 1/4 db step
+#define ma_thr_lsb_ch2__a 75
+#define ma_thr_lsb_ch2__len 2
+#define ma_thr_lsb_ch2__mask 0x30
+#define ma_thr_lsb_ch2__shift 0x04
+#define ma_thr_lsb_ch2__reset 0x00
+//---------------------------------------------------------------thr_lsb_ch3---
+// threshold lsb ch3
+#define ma_thr_lsb_ch3__a 75
+#define ma_thr_lsb_ch3__len 2
+#define ma_thr_lsb_ch3__mask 0xc0
+#define ma_thr_lsb_ch3__shift 0x06
+#define ma_thr_lsb_ch3__reset 0x00
+//-----------------------------------------------------------dcu_mon0.pm_mon---
+// power mode monitor channel 0
+#define ma_dcu_mon0__pm_mon__a 96
+#define ma_dcu_mon0__pm_mon__len 2
+#define ma_dcu_mon0__pm_mon__mask 0x03
+#define ma_dcu_mon0__pm_mon__shift 0x00
+#define ma_dcu_mon0__pm_mon__reset 0x00
+//-----------------------------------------------------dcu_mon0.freqmode_mon---
+// frequence mode monitor channel 0
+#define ma_dcu_mon0__freqmode_mon__a 96
+#define ma_dcu_mon0__freqmode_mon__len 3
+#define ma_dcu_mon0__freqmode_mon__mask 0x70
+#define ma_dcu_mon0__freqmode_mon__shift 0x04
+#define ma_dcu_mon0__freqmode_mon__reset 0x00
+//-------------------------------------------------------dcu_mon0.pps_passed---
+// dcu0 pps completion indicator
+#define ma_dcu_mon0__pps_passed__a 96
+#define ma_dcu_mon0__pps_passed__len 1
+#define ma_dcu_mon0__pps_passed__mask 0x80
+#define ma_dcu_mon0__pps_passed__shift 0x07
+#define ma_dcu_mon0__pps_passed__reset 0x00
+//----------------------------------------------------------dcu_mon0.ocp_mon---
+// ocp monitor channel 0
+#define ma_dcu_mon0__ocp_mon__a 97
+#define ma_dcu_mon0__ocp_mon__len 1
+#define ma_dcu_mon0__ocp_mon__mask 0x01
+#define ma_dcu_mon0__ocp_mon__shift 0x00
+#define ma_dcu_mon0__ocp_mon__reset 0x00
+//--------------------------------------------------------dcu_mon0.vcfly1_ok---
+// cfly1 protection monitor channel 0.
+#define ma_dcu_mon0__vcfly1_ok__a 97
+#define ma_dcu_mon0__vcfly1_ok__len 1
+#define ma_dcu_mon0__vcfly1_ok__mask 0x02
+#define ma_dcu_mon0__vcfly1_ok__shift 0x01
+#define ma_dcu_mon0__vcfly1_ok__reset 0x00
+//--------------------------------------------------------dcu_mon0.vcfly2_ok---
+// cfly2 protection monitor channel 0.
+#define ma_dcu_mon0__vcfly2_ok__a 97
+#define ma_dcu_mon0__vcfly2_ok__len 1
+#define ma_dcu_mon0__vcfly2_ok__mask 0x04
+#define ma_dcu_mon0__vcfly2_ok__shift 0x02
+#define ma_dcu_mon0__vcfly2_ok__reset 0x00
+//----------------------------------------------------------dcu_mon0.pvdd_ok---
+// dcu0 pvdd monitor
+#define ma_dcu_mon0__pvdd_ok__a 97
+#define ma_dcu_mon0__pvdd_ok__len 1
+#define ma_dcu_mon0__pvdd_ok__mask 0x08
+#define ma_dcu_mon0__pvdd_ok__shift 0x03
+#define ma_dcu_mon0__pvdd_ok__reset 0x00
+//-----------------------------------------------------------dcu_mon0.vdd_ok---
+// dcu0 vdd monitor
+#define ma_dcu_mon0__vdd_ok__a 97
+#define ma_dcu_mon0__vdd_ok__len 1
+#define ma_dcu_mon0__vdd_ok__mask 0x10
+#define ma_dcu_mon0__vdd_ok__shift 0x04
+#define ma_dcu_mon0__vdd_ok__reset 0x00
+//-------------------------------------------------------------dcu_mon0.mute---
+// dcu0 mute monitor
+#define ma_dcu_mon0__mute__a 97
+#define ma_dcu_mon0__mute__len 1
+#define ma_dcu_mon0__mute__mask 0x20
+#define ma_dcu_mon0__mute__shift 0x05
+#define ma_dcu_mon0__mute__reset 0x00
+//------------------------------------------------------------dcu_mon0.m_mon---
+// m sense monitor channel 0
+#define ma_dcu_mon0__m_mon__a 98
+#define ma_dcu_mon0__m_mon__len 8
+#define ma_dcu_mon0__m_mon__mask 0xff
+#define ma_dcu_mon0__m_mon__shift 0x00
+#define ma_dcu_mon0__m_mon__reset 0x00
+//-----------------------------------------------------------dcu_mon1.pm_mon---
+// power mode monitor channel 1
+#define ma_dcu_mon1__pm_mon__a 100
+#define ma_dcu_mon1__pm_mon__len 2
+#define ma_dcu_mon1__pm_mon__mask 0x03
+#define ma_dcu_mon1__pm_mon__shift 0x00
+#define ma_dcu_mon1__pm_mon__reset 0x00
+//-----------------------------------------------------dcu_mon1.freqmode_mon---
+// frequence mode monitor channel 1
+#define ma_dcu_mon1__freqmode_mon__a 100
+#define ma_dcu_mon1__freqmode_mon__len 3
+#define ma_dcu_mon1__freqmode_mon__mask 0x70
+#define ma_dcu_mon1__freqmode_mon__shift 0x04
+#define ma_dcu_mon1__freqmode_mon__reset 0x00
+//-------------------------------------------------------dcu_mon1.pps_passed---
+// dcu1 pps completion indicator
+#define ma_dcu_mon1__pps_passed__a 100
+#define ma_dcu_mon1__pps_passed__len 1
+#define ma_dcu_mon1__pps_passed__mask 0x80
+#define ma_dcu_mon1__pps_passed__shift 0x07
+#define ma_dcu_mon1__pps_passed__reset 0x00
+//----------------------------------------------------------dcu_mon1.ocp_mon---
+// ocp monitor channel 1
+#define ma_dcu_mon1__ocp_mon__a 101
+#define ma_dcu_mon1__ocp_mon__len 1
+#define ma_dcu_mon1__ocp_mon__mask 0x01
+#define ma_dcu_mon1__ocp_mon__shift 0x00
+#define ma_dcu_mon1__ocp_mon__reset 0x00
+//--------------------------------------------------------dcu_mon1.vcfly1_ok---
+// cfly1 protcetion monitor channel 1
+#define ma_dcu_mon1__vcfly1_ok__a 101
+#define ma_dcu_mon1__vcfly1_ok__len 1
+#define ma_dcu_mon1__vcfly1_ok__mask 0x02
+#define ma_dcu_mon1__vcfly1_ok__shift 0x01
+#define ma_dcu_mon1__vcfly1_ok__reset 0x00
+//--------------------------------------------------------dcu_mon1.vcfly2_ok---
+// cfly2 protection monitor channel 1
+#define ma_dcu_mon1__vcfly2_ok__a 101
+#define ma_dcu_mon1__vcfly2_ok__len 1
+#define ma_dcu_mon1__vcfly2_ok__mask 0x04
+#define ma_dcu_mon1__vcfly2_ok__shift 0x02
+#define ma_dcu_mon1__vcfly2_ok__reset 0x00
+//----------------------------------------------------------dcu_mon1.pvdd_ok---
+// dcu1 pvdd monitor
+#define ma_dcu_mon1__pvdd_ok__a 101
+#define ma_dcu_mon1__pvdd_ok__len 1
+#define ma_dcu_mon1__pvdd_ok__mask 0x08
+#define ma_dcu_mon1__pvdd_ok__shift 0x03
+#define ma_dcu_mon1__pvdd_ok__reset 0x00
+//-----------------------------------------------------------dcu_mon1.vdd_ok---
+// dcu1 vdd monitor
+#define ma_dcu_mon1__vdd_ok__a 101
+#define ma_dcu_mon1__vdd_ok__len 1
+#define ma_dcu_mon1__vdd_ok__mask 0x10
+#define ma_dcu_mon1__vdd_ok__shift 0x04
+#define ma_dcu_mon1__vdd_ok__reset 0x00
+//-------------------------------------------------------------dcu_mon1.mute---
+// dcu1 mute monitor
+#define ma_dcu_mon1__mute__a 101
+#define ma_dcu_mon1__mute__len 1
+#define ma_dcu_mon1__mute__mask 0x20
+#define ma_dcu_mon1__mute__shift 0x05
+#define ma_dcu_mon1__mute__reset 0x00
+//------------------------------------------------------------dcu_mon1.m_mon---
+// m sense monitor channel 1
+#define ma_dcu_mon1__m_mon__a 102
+#define ma_dcu_mon1__m_mon__len 8
+#define ma_dcu_mon1__m_mon__mask 0xff
+#define ma_dcu_mon1__m_mon__shift 0x00
+#define ma_dcu_mon1__m_mon__reset 0x00
+//--------------------------------------------------------dcu_mon0.sw_enable---
+// dcu0 switch enable monitor
+#define ma_dcu_mon0__sw_enable__a 104
+#define ma_dcu_mon0__sw_enable__len 1
+#define ma_dcu_mon0__sw_enable__mask 0x40
+#define ma_dcu_mon0__sw_enable__shift 0x06
+#define ma_dcu_mon0__sw_enable__reset 0x00
+//--------------------------------------------------------dcu_mon1.sw_enable---
+// dcu1 switch enable monitor
+#define ma_dcu_mon1__sw_enable__a 104
+#define ma_dcu_mon1__sw_enable__len 1
+#define ma_dcu_mon1__sw_enable__mask 0x80
+#define ma_dcu_mon1__sw_enable__shift 0x07
+#define ma_dcu_mon1__sw_enable__reset 0x00
+//------------------------------------------------------------hvboot0_ok_mon---
+// hvboot0_ok for test/debug
+#define ma_hvboot0_ok_mon__a 105
+#define ma_hvboot0_ok_mon__len 1
+#define ma_hvboot0_ok_mon__mask 0x40
+#define ma_hvboot0_ok_mon__shift 0x06
+#define ma_hvboot0_ok_mon__reset 0x00
+//------------------------------------------------------------hvboot1_ok_mon---
+// hvboot1_ok for test/debug
+#define ma_hvboot1_ok_mon__a 105
+#define ma_hvboot1_ok_mon__len 1
+#define ma_hvboot1_ok_mon__mask 0x80
+#define ma_hvboot1_ok_mon__shift 0x07
+#define ma_hvboot1_ok_mon__reset 0x00
+//-----------------------------------------------------------------error_acc---
+// accumulated errors,  at and after triggering
+#define ma_error_acc__a 109
+#define ma_error_acc__len 8
+#define ma_error_acc__mask 0xff
+#define ma_error_acc__shift 0x00
+#define ma_error_acc__reset 0x00
+//-------------------------------------------------------------i2s_data_rate---
+// detected i2s data rate: 00/01/10 = x1/x2/x4
+#define ma_i2s_data_rate__a 116
+#define ma_i2s_data_rate__len 2
+#define ma_i2s_data_rate__mask 0x03
+#define ma_i2s_data_rate__shift 0x00
+#define ma_i2s_data_rate__reset 0x00
+//---------------------------------------------------------audio_in_mode_mon---
+// audio input mode monitor
+#define ma_audio_in_mode_mon__a 116
+#define ma_audio_in_mode_mon__len 3
+#define ma_audio_in_mode_mon__mask 0x1c
+#define ma_audio_in_mode_mon__shift 0x02
+#define ma_audio_in_mode_mon__reset 0x00
+//------------------------------------------------------------------msel_mon---
+// msel[2:0] monitor register
+#define ma_msel_mon__a 117
+#define ma_msel_mon__len 3
+#define ma_msel_mon__mask 0x07
+#define ma_msel_mon__shift 0x00
+#define ma_msel_mon__reset 0x00
+//---------------------------------------------------------------------error---
+// current error flag monitor reg - for app. ctrl.
+#define ma_error__a 124
+#define ma_error__len 8
+#define ma_error__mask 0xff
+#define ma_error__shift 0x00
+#define ma_error__reset 0x00
+//----------------------------------------------------audio_proc_limiter_mon---
+// b7-b4: channel 3-0 limiter active
+#define ma_audio_proc_limiter_mon__a 126
+#define ma_audio_proc_limiter_mon__len 4
+#define ma_audio_proc_limiter_mon__mask 0xf0
+#define ma_audio_proc_limiter_mon__shift 0x04
+#define ma_audio_proc_limiter_mon__reset 0x00
+//-------------------------------------------------------audio_proc_clip_mon---
+// b3-b0: channel 3-0 clipping monitor
+#define ma_audio_proc_clip_mon__a 126
+#define ma_audio_proc_clip_mon__len 4
+#define ma_audio_proc_clip_mon__mask 0x0f
+#define ma_audio_proc_clip_mon__shift 0x00
+#define ma_audio_proc_clip_mon__reset 0x00
+#endif
+
+#define SOC_ENUM_ERR(xname, xenum)\
+{      .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
+       .access = SNDRV_CTL_ELEM_ACCESS_READ,\
+       .info = snd_soc_info_enum_double,\
+       .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double,\
+       .private_value = (unsigned long)&(xenum) }
+
+static struct i2c_client *i2c;
+
+struct ma120x0p_priv {
+       struct regmap *regmap;
+       int mclk_div;
+       struct snd_soc_component *component;
+       struct gpio_desc *enable_gpio;
+       struct gpio_desc *mute_gpio;
+       struct gpio_desc *booster_gpio;
+       struct gpio_desc *error_gpio;
+};
+
+static struct ma120x0p_priv *priv_data;
+
+//Used to share the IRQ number within this file
+static unsigned int irqNumber;
+
+// Function prototype for the custom IRQ handler function
+static irqreturn_t ma120x0p_irq_handler(int irq, void *data);
+
+//Alsa Controls
+static const char * const limenable_text[] = {"Bypassed", "Enabled"};
+static const char * const limatack_text[] = {"Slow", "Normal", "Fast"};
+static const char * const limrelease_text[] = {"Slow", "Normal", "Fast"};
+
+static const char * const err_flycap_text[] = {"Ok", "Error"};
+static const char * const err_overcurr_text[] = {"Ok", "Error"};
+static const char * const err_pllerr_text[] = {"Ok", "Error"};
+static const char * const err_pvddunder_text[] = {"Ok", "Error"};
+static const char * const err_overtempw_text[] = {"Ok", "Error"};
+static const char * const err_overtempe_text[] = {"Ok", "Error"};
+static const char * const err_pinlowimp_text[] = {"Ok", "Error"};
+static const char * const err_dcprot_text[] = {"Ok", "Error"};
+
+static const char * const pwr_mode_prof_text[] = {"PMF0", "PMF1", "PMF2",
+"PMF3", "PMF4"};
+
+static const struct soc_enum lim_enable_ctrl =
+       SOC_ENUM_SINGLE(ma_audio_proc_limiterenable__a,
+               ma_audio_proc_limiterenable__shift,
+               ma_audio_proc_limiterenable__len + 1,
+               limenable_text);
+static const struct soc_enum limatack_ctrl =
+       SOC_ENUM_SINGLE(ma_audio_proc_attack__a,
+               ma_audio_proc_attack__shift,
+               ma_audio_proc_attack__len + 1,
+               limatack_text);
+static const struct soc_enum limrelease_ctrl =
+       SOC_ENUM_SINGLE(ma_audio_proc_release__a,
+               ma_audio_proc_release__shift,
+               ma_audio_proc_release__len + 1,
+               limrelease_text);
+static const struct soc_enum err_flycap_ctrl =
+       SOC_ENUM_SINGLE(ma_error__a, 0, 3, err_flycap_text);
+static const struct soc_enum err_overcurr_ctrl =
+       SOC_ENUM_SINGLE(ma_error__a, 1, 3, err_overcurr_text);
+static const struct soc_enum err_pllerr_ctrl =
+       SOC_ENUM_SINGLE(ma_error__a, 2, 3, err_pllerr_text);
+static const struct soc_enum err_pvddunder_ctrl =
+       SOC_ENUM_SINGLE(ma_error__a, 3, 3, err_pvddunder_text);
+static const struct soc_enum err_overtempw_ctrl =
+       SOC_ENUM_SINGLE(ma_error__a, 4, 3, err_overtempw_text);
+static const struct soc_enum err_overtempe_ctrl =
+       SOC_ENUM_SINGLE(ma_error__a, 5, 3, err_overtempe_text);
+static const struct soc_enum err_pinlowimp_ctrl =
+       SOC_ENUM_SINGLE(ma_error__a, 6, 3, err_pinlowimp_text);
+static const struct soc_enum err_dcprot_ctrl =
+       SOC_ENUM_SINGLE(ma_error__a, 7, 3, err_dcprot_text);
+static const struct soc_enum pwr_mode_prof_ctrl =
+       SOC_ENUM_SINGLE(ma_pmprofile__a, ma_pmprofile__shift, 5,
+               pwr_mode_prof_text);
+
+static const char * const pwr_mode_texts[] = {
+               "Dynamic power mode",
+               "Power mode 1",
+               "Power mode 2",
+               "Power mode 3",
+       };
+
+static const int pwr_mode_values[] = {
+               0x10,
+               0x50,
+               0x60,
+               0x70,
+       };
+
+static SOC_VALUE_ENUM_SINGLE_DECL(pwr_mode_ctrl,
+       ma_pm_man__a, 0, 0x70,
+       pwr_mode_texts,
+       pwr_mode_values);
+
+static const DECLARE_TLV_DB_SCALE(ma120x0p_vol_tlv, -5000, 100,  0);
+static const DECLARE_TLV_DB_SCALE(ma120x0p_lim_tlv, -14400, 100,  0);
+static const DECLARE_TLV_DB_SCALE(ma120x0p_lr_tlv, -5000, 100,  0);
+
+static const struct snd_kcontrol_new ma120x0p_snd_controls[] = {
+       //Master Volume
+       SOC_SINGLE_RANGE_TLV("A.Mstr Vol Volume",
+               ma_vol_db_master__a, 0, 0x18, 0xa8, 1, ma120x0p_vol_tlv),
+
+       //L-R Volume ch0
+       SOC_SINGLE_RANGE_TLV("B.L Vol Volume",
+               ma_vol_db_ch0__a, 0, 0x18, 0x4a, 1, ma120x0p_lr_tlv),
+       SOC_SINGLE_RANGE_TLV("C.R Vol Volume",
+               ma_vol_db_ch1__a, 0, 0x18, 0x4a, 1, ma120x0p_lr_tlv),
+
+       //L-R Limiter Threshold ch0-ch1
+       SOC_DOUBLE_R_RANGE_TLV("D.Lim thresh Volume",
+               ma_thr_db_ch0__a, ma_thr_db_ch1__a, 0, 0x0e, 0x4a, 1,
+               ma120x0p_lim_tlv),
+
+       //Enum Switches/Selectors
+       //SOC_ENUM("E.AudioProc Mute", audioproc_mute_ctrl),
+       SOC_ENUM("F.Limiter Enable", lim_enable_ctrl),
+       SOC_ENUM("G.Limiter Attck", limatack_ctrl),
+       SOC_ENUM("H.Limiter Rls", limrelease_ctrl),
+
+       //Enum Error Monitor (read-only)
+       SOC_ENUM_ERR("I.Err flycap", err_flycap_ctrl),
+       SOC_ENUM_ERR("J.Err overcurr", err_overcurr_ctrl),
+       SOC_ENUM_ERR("K.Err pllerr", err_pllerr_ctrl),
+       SOC_ENUM_ERR("L.Err pvddunder", err_pvddunder_ctrl),
+       SOC_ENUM_ERR("M.Err overtempw", err_overtempw_ctrl),
+       SOC_ENUM_ERR("N.Err overtempe", err_overtempe_ctrl),
+       SOC_ENUM_ERR("O.Err pinlowimp", err_pinlowimp_ctrl),
+       SOC_ENUM_ERR("P.Err dcprot", err_dcprot_ctrl),
+
+       //Power modes profiles
+       SOC_ENUM("Q.PM Prof", pwr_mode_prof_ctrl),
+
+       // Power mode selection (Dynamic,1,2,3)
+       SOC_ENUM("R.Power Mode", pwr_mode_ctrl),
+};
+
+//Machine Driver
+static int ma120x0p_hw_params(struct snd_pcm_substream *substream,
+       struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+       u16 blen = 0x00;
+
+       struct snd_soc_component *component = dai->component;
+
+       priv_data->component = component;
+
+       switch (params_format(params)) {
+       case SNDRV_PCM_FORMAT_S16_LE:
+               blen = 0x10;
+               break;
+       case SNDRV_PCM_FORMAT_S24_LE:
+               blen = 0x00;
+               break;
+       case SNDRV_PCM_FORMAT_S32_LE:
+               blen = 0x00;
+               break;
+       default:
+               dev_err(dai->dev, "Unsupported word length: %u\n",
+               params_format(params));
+               return -EINVAL;
+       }
+
+       // set word length
+       snd_soc_component_update_bits(component, ma_i2s_framesize__a,
+               ma_i2s_framesize__mask, blen);
+
+       return 0;
+}
+
+static int ma120x0p_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
+{
+       int val = 0;
+
+       struct ma120x0p_priv *ma120x0p;
+
+       struct snd_soc_component *component = dai->component;
+
+       ma120x0p = snd_soc_component_get_drvdata(component);
+
+       if (mute)
+               val = 0;
+       else
+               val = 1;
+
+       gpiod_set_value_cansleep(priv_data->mute_gpio, val);
+
+       return 0;
+}
+
+static const struct snd_soc_dai_ops ma120x0p_dai_ops = {
+       .hw_params              =       ma120x0p_hw_params,
+       .mute_stream    =       ma120x0p_mute_stream,
+};
+
+static struct snd_soc_dai_driver ma120x0p_dai = {
+       .name           = "ma120x0p-amp",
+       .playback       =       {
+               .stream_name    = "Playback",
+               .channels_min   = 2,
+               .channels_max   = 2,
+               .rates = SNDRV_PCM_RATE_CONTINUOUS,
+               .rate_min = 44100,
+               .rate_max = 192000,
+               .formats = SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE
+       },
+       .ops        = &ma120x0p_dai_ops,
+};
+
+//Codec Driver
+static int ma120x0p_clear_err(struct snd_soc_component *component)
+{
+       int ret = 0;
+
+       struct ma120x0p_priv *ma120x0p;
+
+       ma120x0p = snd_soc_component_get_drvdata(component);
+
+       ret = snd_soc_component_update_bits(component,
+               ma_eh_clear__a, ma_eh_clear__mask, 0x00);
+       if (ret < 0)
+               return ret;
+
+       ret = snd_soc_component_update_bits(component,
+               ma_eh_clear__a, ma_eh_clear__mask, 0x04);
+       if (ret < 0)
+               return ret;
+
+       ret = snd_soc_component_update_bits(component,
+               ma_eh_clear__a, ma_eh_clear__mask, 0x00);
+       if (ret < 0)
+               return ret;
+
+       return 0;
+}
+
+static void ma120x0p_remove(struct snd_soc_component *component)
+{
+       struct ma120x0p_priv *ma120x0p;
+
+       ma120x0p = snd_soc_component_get_drvdata(component);
+}
+
+static int ma120x0p_probe(struct snd_soc_component *component)
+{
+       struct ma120x0p_priv *ma120x0p;
+
+       int ret = 0;
+
+       i2c = container_of(component->dev, struct i2c_client, dev);
+
+       ma120x0p = snd_soc_component_get_drvdata(component);
+
+       //Reset error
+       ma120x0p_clear_err(component);
+       if (ret < 0)
+               return ret;
+
+       // set serial audio format I2S and enable audio processor
+       ret = snd_soc_component_write(component, ma_i2s_format__a, 0x08);
+       if (ret < 0)
+               return ret;
+
+       // Enable audio limiter
+       ret = snd_soc_component_update_bits(component,
+               ma_audio_proc_limiterenable__a,
+               ma_audio_proc_limiterenable__mask, 0x40);
+       if (ret < 0)
+               return ret;
+
+       // Set lim attack to fast
+       ret = snd_soc_component_update_bits(component,
+               ma_audio_proc_attack__a, ma_audio_proc_attack__mask, 0x80);
+       if (ret < 0)
+               return ret;
+
+       // Set lim attack to low
+       ret = snd_soc_component_update_bits(component,
+               ma_audio_proc_release__a, ma_audio_proc_release__mask, 0x00);
+       if (ret < 0)
+               return ret;
+
+       // set volume to 0dB
+       ret = snd_soc_component_write(component, ma_vol_db_master__a, 0x18);
+       if (ret < 0)
+               return ret;
+
+       // set ch0 lim thresh to -15dB
+       ret = snd_soc_component_write(component, ma_thr_db_ch0__a, 0x27);
+       if (ret < 0)
+               return ret;
+
+       // set ch1 lim thresh to -15dB
+       ret = snd_soc_component_write(component, ma_thr_db_ch1__a, 0x27);
+       if (ret < 0)
+               return ret;
+
+       //Check for errors
+       ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x00, 0);
+       if (ret < 0)
+               return ret;
+       ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x01, 0);
+       if (ret < 0)
+               return ret;
+       ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x02, 0);
+       if (ret < 0)
+               return ret;
+       ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x08, 0);
+       if (ret < 0)
+               return ret;
+       ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x10, 0);
+       if (ret < 0)
+               return ret;
+       ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x20, 0);
+       if (ret < 0)
+               return ret;
+       ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x40, 0);
+       if (ret < 0)
+               return ret;
+       ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x80, 0);
+       if (ret < 0)
+               return ret;
+
+       return 0;
+}
+
+static int ma120x0p_set_bias_level(struct snd_soc_component *component,
+       enum snd_soc_bias_level level)
+{
+       int ret = 0;
+
+       struct ma120x0p_priv *ma120x0p;
+
+       ma120x0p = snd_soc_component_get_drvdata(component);
+
+       switch (level) {
+       case SND_SOC_BIAS_ON:
+               break;
+
+       case SND_SOC_BIAS_PREPARE:
+               break;
+
+       case SND_SOC_BIAS_STANDBY:
+               ret = gpiod_get_value_cansleep(priv_data->enable_gpio);
+               if (ret != 0) {
+                       dev_err(component->dev, "Device ma120x0p disabled in STANDBY BIAS: %d\n",
+                       ret);
+                       return ret;
+               }
+               break;
+
+       case SND_SOC_BIAS_OFF:
+               break;
+       }
+
+       return 0;
+}
+
+static const struct snd_soc_dapm_widget ma120x0p_dapm_widgets[] = {
+       SND_SOC_DAPM_OUTPUT("OUT_A"),
+       SND_SOC_DAPM_OUTPUT("OUT_B"),
+};
+
+static const struct snd_soc_dapm_route ma120x0p_dapm_routes[] = {
+       { "OUT_B",  NULL, "Playback" },
+       { "OUT_A",  NULL, "Playback" },
+};
+
+static const struct snd_soc_component_driver ma120x0p_component_driver = {
+       .probe = ma120x0p_probe,
+       .remove = ma120x0p_remove,
+       .set_bias_level = ma120x0p_set_bias_level,
+       .dapm_widgets           = ma120x0p_dapm_widgets,
+       .num_dapm_widgets       = ARRAY_SIZE(ma120x0p_dapm_widgets),
+       .dapm_routes            = ma120x0p_dapm_routes,
+       .num_dapm_routes        = ARRAY_SIZE(ma120x0p_dapm_routes),
+       .controls = ma120x0p_snd_controls,
+       .num_controls = ARRAY_SIZE(ma120x0p_snd_controls),
+       .use_pmdown_time        = 1,
+       .endianness             = 1,
+};
+
+//I2C Driver
+static const struct reg_default ma120x0p_reg_defaults[] = {
+       {       0x01,   0x3c    },
+};
+
+static bool ma120x0p_reg_volatile(struct device *dev, unsigned int reg)
+{
+       switch (reg) {
+       case ma_error__a:
+                       return true;
+       default:
+                       return false;
+       }
+}
+
+static const struct of_device_id ma120x0p_of_match[] = {
+       { .compatible = "ma,ma120x0p", },
+       { }
+};
+
+MODULE_DEVICE_TABLE(of, ma120x0p_of_match);
+
+static struct regmap_config ma120x0p_regmap_config = {
+       .reg_bits = 8,
+       .val_bits = 8,
+
+       .max_register = 255,
+       .volatile_reg = ma120x0p_reg_volatile,
+
+       .cache_type = REGCACHE_RBTREE,
+       .reg_defaults = ma120x0p_reg_defaults,
+       .num_reg_defaults = ARRAY_SIZE(ma120x0p_reg_defaults),
+};
+
+static int ma120x0p_i2c_probe(struct i2c_client *i2c,
+       const struct i2c_device_id *id)
+{
+       int ret;
+
+       priv_data = devm_kzalloc(&i2c->dev, sizeof(*priv_data), GFP_KERNEL);
+       if (!priv_data)
+               return -ENOMEM;
+       i2c_set_clientdata(i2c, priv_data);
+
+       priv_data->regmap = devm_regmap_init_i2c(i2c, &ma120x0p_regmap_config);
+       if (IS_ERR(priv_data->regmap)) {
+               ret = PTR_ERR(priv_data->regmap);
+               return ret;
+       }
+
+       //Startup sequence
+
+       //Make sure the device is muted
+       priv_data->mute_gpio = devm_gpiod_get_optional(&i2c->dev, "mute_gp",
+               GPIOD_OUT_LOW);
+       if (IS_ERR(priv_data->mute_gpio)) {
+               ret = PTR_ERR(priv_data->mute_gpio);
+               dev_err(&i2c->dev, "Failed to get mute gpio line: %d\n", ret);
+               return ret;
+       }
+       msleep(50);
+
+// MA120xx0P devices are usually powered by an integrated boost converter.
+// An option GPIO control line is provided to enable the booster properly and
+// in sync with the enable and mute GPIO lines.
+       priv_data->booster_gpio = devm_gpiod_get_optional(&i2c->dev,
+               "booster_gp", GPIOD_OUT_LOW);
+       if (IS_ERR(priv_data->booster_gpio)) {
+               ret = PTR_ERR(priv_data->booster_gpio);
+               dev_err(&i2c->dev,
+               "Failed to get booster enable gpio line: %d\n", ret);
+               return ret;
+       }
+       msleep(50);
+
+       //Enable booster and wait 200ms until stable PVDD
+       gpiod_set_value_cansleep(priv_data->booster_gpio, 1);
+       msleep(200);
+
+       //Enable ma120x0pp
+       priv_data->enable_gpio = devm_gpiod_get_optional(&i2c->dev,
+               "enable_gp", GPIOD_OUT_LOW);
+       if (IS_ERR(priv_data->enable_gpio)) {
+               ret = PTR_ERR(priv_data->enable_gpio);
+               dev_err(&i2c->dev,
+               "Failed to get ma120x0p enable gpio line: %d\n", ret);
+               return ret;
+       }
+       msleep(50);
+
+       //Optional use of ma120x0pp error line as an interrupt trigger to
+       //platform GPIO.
+       //Get error input gpio ma120x0p
+       priv_data->error_gpio = devm_gpiod_get_optional(&i2c->dev,
+                "error_gp", GPIOD_IN);
+       if (IS_ERR(priv_data->error_gpio)) {
+               ret = PTR_ERR(priv_data->error_gpio);
+               dev_err(&i2c->dev,
+                       "Failed to get ma120x0p error gpio line: %d\n", ret);
+               return ret;
+       }
+
+       if (priv_data->error_gpio != NULL) {
+               irqNumber = gpiod_to_irq(priv_data->error_gpio);
+
+               ret = devm_request_threaded_irq(&i2c->dev,
+                        irqNumber, ma120x0p_irq_handler,
+                        NULL, IRQF_TRIGGER_FALLING,
+                        "ma120x0p", priv_data);
+               if (ret != 0)
+                       dev_warn(&i2c->dev, "Failed to request IRQ: %d\n",
+                               ret);
+       }
+
+       ret = devm_snd_soc_register_component(&i2c->dev,
+               &ma120x0p_component_driver, &ma120x0p_dai, 1);
+
+       return ret;
+}
+
+static irqreturn_t ma120x0p_irq_handler(int irq, void *data)
+{
+       gpiod_set_value_cansleep(priv_data->mute_gpio, 0);
+       gpiod_set_value_cansleep(priv_data->enable_gpio, 1);
+       return IRQ_HANDLED;
+}
+
+static void ma120x0p_i2c_remove(struct i2c_client *i2c)
+{
+       snd_soc_unregister_component(&i2c->dev);
+       i2c_set_clientdata(i2c, NULL);
+
+       gpiod_set_value_cansleep(priv_data->mute_gpio, 0);
+       msleep(30);
+       gpiod_set_value_cansleep(priv_data->enable_gpio, 1);
+       msleep(200);
+       gpiod_set_value_cansleep(priv_data->booster_gpio, 0);
+       msleep(200);
+
+       kfree(priv_data);
+}
+
+static void ma120x0p_i2c_shutdown(struct i2c_client *i2c)
+{
+       snd_soc_unregister_component(&i2c->dev);
+       i2c_set_clientdata(i2c, NULL);
+
+       gpiod_set_value_cansleep(priv_data->mute_gpio, 0);
+       msleep(30);
+       gpiod_set_value_cansleep(priv_data->enable_gpio, 1);
+       msleep(200);
+       gpiod_set_value_cansleep(priv_data->booster_gpio, 0);
+       msleep(200);
+
+       kfree(priv_data);
+}
+
+static const struct i2c_device_id ma120x0p_i2c_id[] = {
+       { "ma120x0p", 0 },
+       { }
+};
+
+MODULE_DEVICE_TABLE(i2c, ma120x0p_i2c_id);
+
+static struct i2c_driver ma120x0p_i2c_driver = {
+       .driver = {
+               .name = "ma120x0p",
+               .owner = THIS_MODULE,
+               .of_match_table = ma120x0p_of_match,
+       },
+       .probe = ma120x0p_i2c_probe,
+       .remove = ma120x0p_i2c_remove,
+       .shutdown = ma120x0p_i2c_shutdown,
+       .id_table = ma120x0p_i2c_id
+};
+
+static int __init ma120x0p_modinit(void)
+{
+       int ret = 0;
+
+       ret = i2c_add_driver(&ma120x0p_i2c_driver);
+       if (ret != 0) {
+               pr_err("Failed to register MA120X0P I2C driver: %d\n", ret);
+               return ret;
+       }
+       return ret;
+}
+module_init(ma120x0p_modinit);
+
+static void __exit ma120x0p_exit(void)
+{
+       i2c_del_driver(&ma120x0p_i2c_driver);
+}
+module_exit(ma120x0p_exit);
+
+MODULE_AUTHOR("Ariel Muszkat ariel.muszkat@gmail.com>");
+MODULE_DESCRIPTION("ASoC driver for ma120x0p");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/codecs/pcm1794a.c
@@ -0,0 +1,69 @@
+/*
+ * Driver for the PCM1794A codec
+ *
+ * Author:     Florian Meier <florian.meier@koalo.de>
+ *             Copyright 2013
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <sound/soc.h>
+
+static struct snd_soc_dai_driver pcm1794a_dai = {
+       .name = "pcm1794a-hifi",
+       .playback = {
+               .channels_min = 2,
+               .channels_max = 2,
+               .rates = SNDRV_PCM_RATE_8000_192000,
+               .formats = SNDRV_PCM_FMTBIT_S16_LE |
+                          SNDRV_PCM_FMTBIT_S24_LE
+       },
+};
+
+static struct snd_soc_component_driver soc_component_dev_pcm1794a;
+
+static int pcm1794a_probe(struct platform_device *pdev)
+{
+       return snd_soc_register_component(&pdev->dev, &soc_component_dev_pcm1794a,
+                       &pcm1794a_dai, 1);
+}
+
+static int pcm1794a_remove(struct platform_device *pdev)
+{
+       snd_soc_unregister_component(&pdev->dev);
+       return 0;
+}
+
+static const struct of_device_id pcm1794a_of_match[] = {
+       { .compatible = "ti,pcm1794a", },
+       { }
+};
+MODULE_DEVICE_TABLE(of, pcm1794a_of_match);
+
+static struct platform_driver pcm1794a_component_driver = {
+       .probe          = pcm1794a_probe,
+       .remove         = pcm1794a_remove,
+       .driver         = {
+               .name   = "pcm1794a-codec",
+               .owner  = THIS_MODULE,
+               .of_match_table = of_match_ptr(pcm1794a_of_match),
+       },
+};
+
+module_platform_driver(pcm1794a_component_driver);
+
+MODULE_DESCRIPTION("ASoC PCM1794A codec driver");
+MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>");
+MODULE_LICENSE("GPL v2");
--- a/sound/soc/codecs/pcm512x.c
+++ b/sound/soc/codecs/pcm512x.c
@@ -536,7 +536,7 @@ static unsigned long pcm512x_ncp_target(
 
 static const u32 pcm512x_dai_rates[] = {
        8000, 11025, 16000, 22050, 32000, 44100, 48000, 64000,
-       88200, 96000, 176400, 192000, 384000,
+       88200, 96000, 176400, 192000, 352800, 384000,
 };
 
 static const struct snd_pcm_hw_constraint_list constraints_slave = {
--- /dev/null
+++ b/sound/soc/codecs/tas5713.c
@@ -0,0 +1,361 @@
+/*
+ * ASoC Driver for TAS5713
+ *
+ * Author:     Sebastian Eickhoff <basti.eickhoff@googlemail.com>
+ *             Copyright 2014
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/of_device.h>
+#include <linux/spi/spi.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/fs.h>
+#include <asm/uaccess.h>
+
+#include "tas5713.h"
+
+
+static struct i2c_client *i2c;
+
+struct tas5713_priv {
+       struct regmap *regmap;
+       int mclk_div;
+       struct snd_soc_component *component;
+};
+
+static struct tas5713_priv *priv_data;
+
+
+
+
+/*
+ *    _   _    ___   _      ___         _           _
+ *   /_\ | |  / __| /_\    / __|___ _ _| |_ _ _ ___| |___
+ *  / _ \| |__\__ \/ _ \  | (__/ _ \ ' \  _| '_/ _ \ (_-<
+ * /_/ \_\____|___/_/ \_\  \___\___/_||_\__|_| \___/_/__/
+ *
+ */
+
+static const DECLARE_TLV_DB_SCALE(tas5713_vol_tlv, -10000, 50, 1);
+
+
+static const struct snd_kcontrol_new tas5713_snd_controls[] = {
+       SOC_SINGLE_TLV  ("Master"    , TAS5713_VOL_MASTER, 0, 248, 1, tas5713_vol_tlv),
+       SOC_DOUBLE_R_TLV("Channels"  , TAS5713_VOL_CH1, TAS5713_VOL_CH2, 0, 248, 1, tas5713_vol_tlv)
+};
+
+
+
+
+/*
+ *  __  __         _    _            ___      _
+ * |  \/  |__ _ __| |_ (_)_ _  ___  |   \ _ _(_)_ _____ _ _
+ * | |\/| / _` / _| ' \| | ' \/ -_) | |) | '_| \ V / -_) '_|
+ * |_|  |_\__,_\__|_||_|_|_||_\___| |___/|_| |_|\_/\___|_|
+ *
+ */
+
+static int tas5713_hw_params(struct snd_pcm_substream *substream,
+                           struct snd_pcm_hw_params *params,
+                           struct snd_soc_dai *dai)
+{
+       u16 blen = 0x00;
+
+       struct snd_soc_component *component = dai->component;
+       priv_data->component = component;
+
+       switch (params_format(params)) {
+       case SNDRV_PCM_FORMAT_S16_LE:
+               blen = 0x03;
+               break;
+       case SNDRV_PCM_FORMAT_S20_3LE:
+               blen = 0x1;
+               break;
+       case SNDRV_PCM_FORMAT_S24_LE:
+               blen = 0x04;
+               break;
+       case SNDRV_PCM_FORMAT_S32_LE:
+               blen = 0x05;
+               break;
+       default:
+               dev_err(dai->dev, "Unsupported word length: %u\n",
+                       params_format(params));
+               return -EINVAL;
+       }
+
+       // set word length
+       snd_soc_component_update_bits(component, TAS5713_SERIAL_DATA_INTERFACE, 0x7, blen);
+
+       return 0;
+}
+
+
+static int tas5713_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
+{
+       unsigned int val = 0;
+
+       struct tas5713_priv *tas5713;
+       struct snd_soc_component *component = dai->component;
+       tas5713 = snd_soc_component_get_drvdata(component);
+
+       if (mute) {
+               val = TAS5713_SOFT_MUTE_ALL;
+       }
+
+       return regmap_write(tas5713->regmap, TAS5713_SOFT_MUTE, val);
+}
+
+
+static const struct snd_soc_dai_ops tas5713_dai_ops = {
+       .hw_params              = tas5713_hw_params,
+       .mute_stream    = tas5713_mute_stream,
+};
+
+
+static struct snd_soc_dai_driver tas5713_dai = {
+       .name           = "tas5713-hifi",
+       .playback       = {
+               .stream_name    = "Playback",
+               .channels_min   = 2,
+               .channels_max   = 2,
+               .rates              = SNDRV_PCM_RATE_8000_48000,
+               .formats            = (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE ),
+       },
+       .ops        = &tas5713_dai_ops,
+};
+
+
+
+
+/*
+ *   ___         _          ___      _
+ *  / __|___  __| |___ __  |   \ _ _(_)_ _____ _ _
+ * | (__/ _ \/ _` / -_) _| | |) | '_| \ V / -_) '_|
+ *  \___\___/\__,_\___\__| |___/|_| |_|\_/\___|_|
+ *
+ */
+
+static void tas5713_remove(struct snd_soc_component *component)
+{
+       struct tas5713_priv *tas5713;
+
+       tas5713 = snd_soc_component_get_drvdata(component);
+}
+
+
+static int tas5713_probe(struct snd_soc_component *component)
+{
+       struct tas5713_priv *tas5713;
+       int i, ret;
+
+       i2c = container_of(component->dev, struct i2c_client, dev);
+
+       tas5713 = snd_soc_component_get_drvdata(component);
+
+       // Reset error
+       ret = snd_soc_component_write(component, TAS5713_ERROR_STATUS, 0x00);
+       if (ret < 0) return ret;
+
+       // Trim oscillator
+       ret = snd_soc_component_write(component, TAS5713_OSC_TRIM, 0x00);
+       if (ret < 0) return ret;
+       msleep(1000);
+
+       // Reset error
+       ret = snd_soc_component_write(component, TAS5713_ERROR_STATUS, 0x00);
+       if (ret < 0) return ret;
+
+       // I2S 24bit
+       ret = snd_soc_component_write(component, TAS5713_SERIAL_DATA_INTERFACE, 0x05);
+       if (ret < 0) return ret;
+
+       // Unmute
+       ret = snd_soc_component_write(component, TAS5713_SYSTEM_CTRL2, 0x00);
+       if (ret < 0) return ret;
+       ret = snd_soc_component_write(component, TAS5713_SOFT_MUTE, 0x00);
+       if (ret < 0) return ret;
+
+       // Set volume to 0db
+       ret = snd_soc_component_write(component, TAS5713_VOL_MASTER, 0x00);
+       if (ret < 0) return ret;
+
+       // Now start programming the default initialization sequence
+       for (i = 0; i < ARRAY_SIZE(tas5713_init_sequence); ++i) {
+               ret = i2c_master_send(i2c,
+                                    tas5713_init_sequence[i].data,
+                                    tas5713_init_sequence[i].size);
+               if (ret < 0) {
+                       printk(KERN_INFO "TAS5713 CODEC PROBE: InitSeq returns: %d\n", ret);
+               }
+       }
+
+       // Unmute
+       ret = snd_soc_component_write(component, TAS5713_SYSTEM_CTRL2, 0x00);
+       if (ret < 0) return ret;
+
+       return 0;
+}
+
+
+static struct snd_soc_component_driver soc_codec_dev_tas5713 = {
+       .probe = tas5713_probe,
+       .remove = tas5713_remove,
+       .controls = tas5713_snd_controls,
+       .num_controls = ARRAY_SIZE(tas5713_snd_controls),
+};
+
+
+
+
+/*
+ *   ___ ___ ___   ___      _
+ *  |_ _|_  ) __| |   \ _ _(_)_ _____ _ _
+ *   | | / / (__  | |) | '_| \ V / -_) '_|
+ *  |___/___\___| |___/|_| |_|\_/\___|_|
+ *
+ */
+
+static const struct reg_default tas5713_reg_defaults[] = {
+       { 0x07 ,0x80 },     // R7  - VOL_MASTER    - -40dB
+       { 0x08 ,  30 },     // R8  - VOL_CH1       -   0dB
+       { 0x09 ,  30 },     // R9  - VOL_CH2       -   0dB
+       { 0x0A ,0x80 },     // R10 - VOL_HEADPHONE - -40dB
+};
+
+
+static bool tas5713_reg_volatile(struct device *dev, unsigned int reg)
+{
+       switch (reg) {
+               case TAS5713_DEVICE_ID:
+               case TAS5713_ERROR_STATUS:
+               case TAS5713_CLOCK_CTRL:
+                       return true;
+       default:
+                       return false;
+       }
+}
+
+
+static const struct of_device_id tas5713_of_match[] = {
+       { .compatible = "ti,tas5713", },
+       { }
+};
+MODULE_DEVICE_TABLE(of, tas5713_of_match);
+
+
+static struct regmap_config tas5713_regmap_config = {
+       .reg_bits = 8,
+       .val_bits = 8,
+
+       .max_register = TAS5713_MAX_REGISTER,
+       .volatile_reg = tas5713_reg_volatile,
+
+       .cache_type = REGCACHE_RBTREE,
+       .reg_defaults = tas5713_reg_defaults,
+       .num_reg_defaults = ARRAY_SIZE(tas5713_reg_defaults),
+};
+
+
+static int tas5713_i2c_probe(struct i2c_client *i2c,
+                           const struct i2c_device_id *id)
+{
+       int ret;
+
+       priv_data = devm_kzalloc(&i2c->dev, sizeof *priv_data, GFP_KERNEL);
+       if (!priv_data)
+               return -ENOMEM;
+
+       priv_data->regmap = devm_regmap_init_i2c(i2c, &tas5713_regmap_config);
+       if (IS_ERR(priv_data->regmap)) {
+               ret = PTR_ERR(priv_data->regmap);
+               return ret;
+       }
+
+       i2c_set_clientdata(i2c, priv_data);
+
+       ret = snd_soc_register_component(&i2c->dev,
+                                    &soc_codec_dev_tas5713, &tas5713_dai, 1);
+
+       return ret;
+}
+
+
+static void tas5713_i2c_remove(struct i2c_client *i2c)
+{
+       snd_soc_unregister_component(&i2c->dev);
+       i2c_set_clientdata(i2c, NULL);
+
+       kfree(priv_data);
+}
+
+
+static const struct i2c_device_id tas5713_i2c_id[] = {
+       { "tas5713", 0 },
+       { }
+};
+
+MODULE_DEVICE_TABLE(i2c, tas5713_i2c_id);
+
+
+static struct i2c_driver tas5713_i2c_driver = {
+       .driver = {
+               .name = "tas5713",
+               .owner = THIS_MODULE,
+               .of_match_table = tas5713_of_match,
+       },
+       .probe = tas5713_i2c_probe,
+       .remove = tas5713_i2c_remove,
+       .id_table = tas5713_i2c_id
+};
+
+
+static int __init tas5713_modinit(void)
+{
+       int ret = 0;
+
+       ret = i2c_add_driver(&tas5713_i2c_driver);
+       if (ret) {
+               printk(KERN_ERR "Failed to register tas5713 I2C driver: %d\n",
+                      ret);
+       }
+
+       return ret;
+}
+module_init(tas5713_modinit);
+
+
+static void __exit tas5713_exit(void)
+{
+       i2c_del_driver(&tas5713_i2c_driver);
+}
+module_exit(tas5713_exit);
+
+
+MODULE_AUTHOR("Sebastian Eickhoff <basti.eickhoff@googlemail.com>");
+MODULE_DESCRIPTION("ASoC driver for TAS5713");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/sound/soc/codecs/tas5713.h
@@ -0,0 +1,210 @@
+/*
+ * ASoC Driver for TAS5713
+ *
+ * Author:      Sebastian Eickhoff <basti.eickhoff@googlemail.com>
+ *              Copyright 2014
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef _TAS5713_H
+#define _TAS5713_H
+
+
+// TAS5713 I2C-bus register addresses
+
+#define TAS5713_CLOCK_CTRL              0x00
+#define TAS5713_DEVICE_ID               0x01
+#define TAS5713_ERROR_STATUS            0x02
+#define TAS5713_SYSTEM_CTRL1            0x03
+#define TAS5713_SERIAL_DATA_INTERFACE   0x04
+#define TAS5713_SYSTEM_CTRL2            0x05
+#define TAS5713_SOFT_MUTE               0x06
+#define TAS5713_VOL_MASTER              0x07
+#define TAS5713_VOL_CH1                 0x08
+#define TAS5713_VOL_CH2                 0x09
+#define TAS5713_VOL_HEADPHONE           0x0A
+#define TAS5713_VOL_CONFIG              0x0E
+#define TAS5713_MODULATION_LIMIT        0x10
+#define TAS5713_IC_DLY_CH1              0x11
+#define TAS5713_IC_DLY_CH2              0x12
+#define TAS5713_IC_DLY_CH3              0x13
+#define TAS5713_IC_DLY_CH4              0x14
+
+#define TAS5713_START_STOP_PERIOD       0x1A
+#define TAS5713_OSC_TRIM                0x1B
+#define TAS5713_BKND_ERR                0x1C
+
+#define TAS5713_INPUT_MUX               0x20
+#define TAS5713_SRC_SELECT_CH4          0x21
+#define TAS5713_PWM_MUX                 0x25
+
+#define TAS5713_CH1_BQ0                 0x29
+#define TAS5713_CH1_BQ1                 0x2A
+#define TAS5713_CH1_BQ2                 0x2B
+#define TAS5713_CH1_BQ3                 0x2C
+#define TAS5713_CH1_BQ4                 0x2D
+#define TAS5713_CH1_BQ5                 0x2E
+#define TAS5713_CH1_BQ6                 0x2F
+#define TAS5713_CH1_BQ7                 0x58
+#define TAS5713_CH1_BQ8                 0x59
+
+#define TAS5713_CH2_BQ0                 0x30
+#define TAS5713_CH2_BQ1                 0x31
+#define TAS5713_CH2_BQ2                 0x32
+#define TAS5713_CH2_BQ3                 0x33
+#define TAS5713_CH2_BQ4                 0x34
+#define TAS5713_CH2_BQ5                 0x35
+#define TAS5713_CH2_BQ6                 0x36
+#define TAS5713_CH2_BQ7                 0x5C
+#define TAS5713_CH2_BQ8                 0x5D
+
+#define TAS5713_CH4_BQ0                 0x5A
+#define TAS5713_CH4_BQ1                 0x5B
+#define TAS5713_CH3_BQ0                 0x5E
+#define TAS5713_CH3_BQ1                 0x5F
+
+#define TAS5713_DRC1_SOFTENING_FILTER_ALPHA_OMEGA       0x3B
+#define TAS5713_DRC1_ATTACK_RELEASE_RATE                0x3C
+#define TAS5713_DRC2_SOFTENING_FILTER_ALPHA_OMEGA       0x3E
+#define TAS5713_DRC2_ATTACK_RELEASE_RATE                0x3F
+#define TAS5713_DRC1_ATTACK_RELEASE_THRES               0x40
+#define TAS5713_DRC2_ATTACK_RELEASE_THRES               0x43
+#define TAS5713_DRC_CTRL                                0x46
+
+#define TAS5713_BANK_SW_CTRL            0x50
+#define TAS5713_CH1_OUTPUT_MIXER        0x51
+#define TAS5713_CH2_OUTPUT_MIXER        0x52
+#define TAS5713_CH1_INPUT_MIXER         0x53
+#define TAS5713_CH2_INPUT_MIXER         0x54
+#define TAS5713_OUTPUT_POST_SCALE       0x56
+#define TAS5713_OUTPUT_PRESCALE         0x57
+
+#define TAS5713_IDF_POST_SCALE          0x62
+
+#define TAS5713_CH1_INLINE_MIXER        0x70
+#define TAS5713_CH1_INLINE_DRC_EN_MIXER 0x71
+#define TAS5713_CH1_R_CHANNEL_MIXER     0x72
+#define TAS5713_CH1_L_CHANNEL_MIXER     0x73
+#define TAS5713_CH2_INLINE_MIXER        0x74
+#define TAS5713_CH2_INLINE_DRC_EN_MIXER 0x75
+#define TAS5713_CH2_L_CHANNEL_MIXER     0x76
+#define TAS5713_CH2_R_CHANNEL_MIXER     0x77
+
+#define TAS5713_UPDATE_DEV_ADDR_KEY     0xF8
+#define TAS5713_UPDATE_DEV_ADDR_REG     0xF9
+
+#define TAS5713_REGISTER_COUNT          0x46
+#define TAS5713_MAX_REGISTER            0xF9
+
+
+// Bitmasks for registers
+#define TAS5713_SOFT_MUTE_ALL           0x07
+
+
+
+struct tas5713_init_command {
+        const int size;
+        const char *const data;
+};
+
+static const struct tas5713_init_command tas5713_init_sequence[] = {
+
+        // Trim oscillator
+    { .size = 2,  .data = "\x1B\x00" },
+    // System control register 1 (0x03): block DC
+    { .size = 2,  .data = "\x03\x80" },
+    // Mute everything
+    { .size = 2,  .data = "\x05\x40" },
+    // Modulation limit register (0x10): 97.7%
+    { .size = 2,  .data = "\x10\x02" },
+    // Interchannel delay registers
+    // (0x11, 0x12, 0x13, and 0x14): BD mode
+    { .size = 2,  .data = "\x11\xB8" },
+    { .size = 2,  .data = "\x12\x60" },
+    { .size = 2,  .data = "\x13\xA0" },
+    { .size = 2,  .data = "\x14\x48" },
+    // PWM shutdown group register (0x19): no shutdown
+    { .size = 2,  .data = "\x19\x00" },
+    // Input multiplexer register (0x20): BD mode
+    { .size = 2,  .data = "\x20\x00\x89\x77\x72" },
+    // PWM output mux register (0x25)
+    // Channel 1 --> OUTA, channel 1 neg --> OUTB
+    // Channel 2 --> OUTC, channel 2 neg --> OUTD
+    { .size = 5,  .data = "\x25\x01\x02\x13\x45" },
+    // DRC control (0x46): DRC off
+    { .size = 5,  .data = "\x46\x00\x00\x00\x00" },
+    // BKND_ERR register (0x1C): 299ms reset period
+    { .size = 2,  .data = "\x1C\x07" },
+    // Mute channel 3
+    { .size = 2,  .data = "\x0A\xFF" },
+    // Volume configuration register (0x0E): volume slew 512 steps
+    { .size = 2,  .data = "\x0E\x90" },
+    // Clock control register (0x00): 44/48kHz, MCLK=64xfs
+    { .size = 2,  .data = "\x00\x60" },
+    // Bank switch and eq control (0x50): no bank switching
+    { .size = 5,  .data = "\x50\x00\x00\x00\x00" },
+    // Volume registers (0x07, 0x08, 0x09, 0x0A)
+    { .size = 2,  .data = "\x07\x20" },
+    { .size = 2,  .data = "\x08\x30" },
+    { .size = 2,  .data = "\x09\x30" },
+    { .size = 2,  .data = "\x0A\xFF" },
+    // 0x72, 0x73, 0x76, 0x77 input mixer:
+    // no intermix between channels
+    { .size = 5,  .data = "\x72\x00\x00\x00\x00" },
+    { .size = 5,  .data = "\x73\x00\x80\x00\x00" },
+    { .size = 5,  .data = "\x76\x00\x00\x00\x00" },
+    { .size = 5,  .data = "\x77\x00\x80\x00\x00" },
+    // 0x70, 0x71, 0x74, 0x75 inline DRC mixer:
+    // no inline DRC inmix
+    { .size = 5,  .data = "\x70\x00\x80\x00\x00" },
+    { .size = 5,  .data = "\x71\x00\x00\x00\x00" },
+    { .size = 5,  .data = "\x74\x00\x80\x00\x00" },
+    { .size = 5,  .data = "\x75\x00\x00\x00\x00" },
+    // 0x56, 0x57 Output scale
+    { .size = 5,  .data = "\x56\x00\x80\x00\x00" },
+    { .size = 5,  .data = "\x57\x00\x02\x00\x00" },
+    // 0x3B, 0x3c
+    { .size = 9,  .data = "\x3B\x00\x08\x00\x00\x00\x78\x00\x00" },
+    { .size = 9,  .data = "\x3C\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
+    { .size = 9,  .data = "\x3E\x00\x08\x00\x00\x00\x78\x00\x00" },
+    { .size = 9,  .data = "\x3F\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
+    { .size = 9,  .data = "\x40\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
+    { .size = 9,  .data = "\x43\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
+    // 0x51, 0x52: output mixer
+    { .size = 9,  .data = "\x51\x00\x80\x00\x00\x00\x00\x00\x00" },
+    { .size = 9,  .data = "\x52\x00\x80\x00\x00\x00\x00\x00\x00" },
+    // PEQ defaults
+    { .size = 21,  .data = "\x29\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x2A\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x2B\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x2C\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x2D\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x2E\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x2F\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x30\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x31\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x32\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x33\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x34\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x35\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x36\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x58\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x59\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x5C\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x5D\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x5E\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x5F\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x5A\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+    { .size = 21,  .data = "\x5B\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
+};
+
+
+#endif  /* _TAS5713_H */
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1220,7 +1220,15 @@ int snd_soc_runtime_set_dai_fmt(struct s
                return 0;
 
        for_each_rtd_codec_dais(rtd, i, codec_dai) {
-               ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt);
+               unsigned int codec_dai_fmt = dai_fmt;
+
+               // there can only be one master when using multiple codecs
+               if (i && (codec_dai_fmt & SND_SOC_DAIFMT_MASTER_MASK)) {
+                       codec_dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
+                       codec_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
+               }
+
+               ret = snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
                if (ret != 0 && ret != -ENOTSUPP)
                        return ret;
        }
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -856,8 +856,14 @@ static int usb_audio_probe(struct usb_in
        if (ignore_ctl_error)
                chip->quirk_flags |= QUIRK_FLAG_IGNORE_CTL_ERROR;
 
-       if (chip->quirk_flags & QUIRK_FLAG_DISABLE_AUTOSUSPEND)
+       if (chip->quirk_flags & QUIRK_FLAG_DISABLE_AUTOSUSPEND) {
+               /*
+               * Grab the interface, because on a webcam uvcvideo may race
+               * with snd-usb-audio during probe and re-enable autosuspend.
+               */
+               usb_autopm_get_interface(intf);
                usb_disable_autosuspend(interface_to_usbdev(intf));
+       }
 
        /*
         * For devices with more than one control interface, we assume the
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -2156,6 +2156,8 @@ static const struct usb_audio_quirk_flag
                   QUIRK_FLAG_FIXED_RATE),
        DEVICE_FLG(0x0ecb, 0x2069, /* JBL Quantum810 Wireless */
                   QUIRK_FLAG_FIXED_RATE),
+       DEVICE_FLG(0x09da, 0x2695, /* A4Tech FHD 1080p webcam */
+                  QUIRK_FLAG_DISABLE_AUTOSUSPEND | QUIRK_FLAG_GET_SAMPLE_RATE),
 
        /* Vendor matches */
        VENDOR_FLG(0x045e, /* MS Lifecam */