target/linux/bcm27xx/patches-6.1/950-1283-Overlays-Add-definitions-for-HiFiBerry-8-channel-DAC.patch

   1 From 813135a7ff3f0c2b91dc06a5b3f8deac15570466 Mon Sep 17 00:00:00 2001
   2 From: j-schambacher <joerg@hifiberry.com>
   3 Date: Wed, 28 Feb 2024 11:34:05 +0100
   4 Subject: [PATCH 1283/1295] Overlays: Add definitions for HiFiBerry 8 channel
   5  DAC8X
   6
   7 Dedicated overlay claiming all 4 data lanes of the designware
   8 I2S0 module to drive 4x PCM5102. THe devices share BCLK and
   9 LRCLK, therefore all outputs will always run at the same
  10 samplerate and format.
  11
  12 Compatible only with PI5!
  13
  14 Signed-off-by: j-schambacher <joerg@hifiberry.com>
  15 ---
  16  arch/arm/boot/dts/overlays/Makefile           |  1 +
  17  arch/arm/boot/dts/overlays/README             |  6 +++
  18  .../dts/overlays/hifiberry-dac8x-overlay.dts  | 50 +++++++++++++++++++
  19  arch/arm/boot/dts/overlays/overlay_map.dts    |  4 ++
  20  4 files changed, 61 insertions(+)
  21  create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dac8x-overlay.dts
  22
  23 --- a/arch/arm/boot/dts/overlays/Makefile
  24 +++ b/arch/arm/boot/dts/overlays/Makefile
  25 @@ -88,6 +88,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
  26         hifiberry-amp3.dtbo \
  27         hifiberry-amp4pro.dtbo \
  28         hifiberry-dac.dtbo \
  29 +       hifiberry-dac8x.dtbo \
  30         hifiberry-dacplus.dtbo \
  31         hifiberry-dacplusadc.dtbo \
  32         hifiberry-dacplusadcpro.dtbo \
  33 --- a/arch/arm/boot/dts/overlays/README
  34 +++ b/arch/arm/boot/dts/overlays/README
  35 @@ -1772,6 +1772,12 @@ Load:   dtoverlay=hifiberry-dac
  36  Params: <None>
  37
  38
  39 +Name:   hifiberry-dac8x
  40 +Info:   Configures the HifiBerry DAC8X audio cards (only on PI5)
  41 +Load:   dtoverlay=hifiberry-dac8x
  42 +Params: <None>
  43 +
  44 +
  45  Name:   hifiberry-dacplus
  46  Info:   Configures the HifiBerry DAC+ audio card
  47  Load:   dtoverlay=hifiberry-dacplus,<param>=<val>
  48 --- /dev/null
  49 +++ b/arch/arm/boot/dts/overlays/hifiberry-dac8x-overlay.dts
  50 @@ -0,0 +1,50 @@
  51 +// Definitions for HiFiBerry DAC8x
  52 +/dts-v1/;
  53 +/plugin/;
  54 +
  55 +/ {
  56 +       compatible = "brcm,bcm2712";
  57 +
  58 +       fragment@0 {
  59 +               target = <&gpio>;
  60 +               __overlay__ {
  61 +                       rp1_i2s0_dac8x: rp1_i2s0_dac8x {
  62 +                               function = "i2s0";
  63 +                               pins = "gpio18", "gpio19", "gpio21",
  64 +                                      "gpio23", "gpio25", "gpio27";
  65 +                               bias-disable;
  66 +                               status = "okay";
  67 +                       };
  68 +               };
  69 +       };
  70 +
  71 +       fragment@1 {
  72 +               target = <&i2s_clk_producer>;
  73 +               __overlay__ {
  74 +                       pinctrl-names = "default";
  75 +                       pinctrl-0 = <&rp1_i2s0_dac8x>;
  76 +                       status = "okay";
  77 +               };
  78 +       };
  79 +
  80 +       fragment@2 {
  81 +               target-path = "/";
  82 +               __overlay__ {
  83 +                       pcm5102a-codec {
  84 +                               #sound-dai-cells = <0>;
  85 +                               compatible = "ti,pcm5102a";
  86 +                               status = "okay";
  87 +                       };
  88 +               };
  89 +       };
  90 +
  91 +       fragment@3 {
  92 +               target = <&sound>;
  93 +               __overlay__ {
  94 +                       compatible = "hifiberry,hifiberry-dac8x";
  95 +                       i2s-controller = <&i2s_clk_producer>;
  96 +                       status = "okay";
  97 +               };
  98 +       };
  99 +
 100 +};
 101 --- a/arch/arm/boot/dts/overlays/overlay_map.dts
 102 +++ b/arch/arm/boot/dts/overlays/overlay_map.dts
 103 @@ -48,6 +48,10 @@
 104                 bcm2712;
 105         };
 106
 107 +       hifiberry-dac8x {
 108 +               bcm2712;
 109 +       };
 110 +
 111         highperi {
 112                 bcm2711;
 113         };