target/linux/bcm27xx/patches-6.1/950-1290-Overlays-Add-specific-clk-producer-consumer-overlays.patch

   1 From 9e31e8ce44ef11cabcb1b95830e1fdd8a9655ad3 Mon Sep 17 00:00:00 2001
   2 From: j-schambacher <joerg@hifiberry.com>
   3 Date: Mon, 11 Mar 2024 15:32:28 +0100
   4 Subject: [PATCH 1290/1295] Overlays:Add specific clk-producer/-consumer
   5  overlays for Hifiberry DAC+
   6
   7 As the easy switching of the I2S module bewteen clock producer/consumer
   8 on the PI5 is not possible, two specific DT-overlays are introduced.
   9 The DAC+PRO boards with onboard clocks use the -PRO overlay, the boards
  10 without oscillators the -STD version.
  11 The "hifiberry-dacplus,slave" parameter in the -STD overlay disables
  12 the automatic clock detection inside the hifiberry-dacplus driver.
  13
  14 The former hifiberry-dacplus overlay is kept for compatibility but
  15 will be deprecated.
  16
  17 Signed-off-by: j-schambacher <joerg@hifiberry.com>
  18 ---
  19  arch/arm/boot/dts/overlays/Makefile           |  2 +
  20  arch/arm/boot/dts/overlays/README             | 42 ++++++++++++
  21  .../hifiberry-dacplus-pro-overlay.dts         | 64 ++++++++++++++++++
  22  .../hifiberry-dacplus-std-overlay.dts         | 65 +++++++++++++++++++
  23  4 files changed, 173 insertions(+)
  24  create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dacplus-pro-overlay.dts
  25  create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dacplus-std-overlay.dts
  26
  27 --- a/arch/arm/boot/dts/overlays/Makefile
  28 +++ b/arch/arm/boot/dts/overlays/Makefile
  29 @@ -90,6 +90,8 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
  30         hifiberry-dac.dtbo \
  31         hifiberry-dac8x.dtbo \
  32         hifiberry-dacplus.dtbo \
  33 +       hifiberry-dacplus-pro.dtbo \
  34 +       hifiberry-dacplus-std.dtbo \
  35         hifiberry-dacplusadc.dtbo \
  36         hifiberry-dacplusadcpro.dtbo \
  37         hifiberry-dacplusdsp.dtbo \
  38 --- a/arch/arm/boot/dts/overlays/README
  39 +++ b/arch/arm/boot/dts/overlays/README
  40 @@ -1801,6 +1801,48 @@ Params: 24db_digital_gain       Allow ga
  41                                  are switched off at all times.
  42
  43
  44 +Name:   hifiberry-dacplus-pro
  45 +Info:   Configures the HifiBerry DAC+ PRO audio card (onboard clocks)
  46 +Load:   dtoverlay=hifiberry-dacplus-pro,<param>=<val>
  47 +Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
  48 +                                Digital volume control. Enable with
  49 +                                "dtoverlay=hifiberry-dacplus,24db_digital_gain"
  50 +                                (The default behaviour is that the Digital
  51 +                                volume control is limited to a maximum of
  52 +                                0dB. ie. it can attenuate but not provide
  53 +                                gain. For most users, this will be desired
  54 +                                as it will prevent clipping. By appending
  55 +                                the 24dB_digital_gain parameter, the Digital
  56 +                                volume control will allow up to 24dB of
  57 +                                gain. If this parameter is enabled, it is the
  58 +                                responsibility of the user to ensure that
  59 +                                the Digital volume control is set to a value
  60 +                                that does not result in clipping/distortion!)
  61 +        leds_off                If set to 'true' the onboard indicator LEDs
  62 +                                are switched off at all times.
  63 +
  64 +
  65 +Name:   hifiberry-dacplus-std
  66 +Info:   Configures the HifiBerry DAC+ standard audio card (no onboard clocks)
  67 +Load:   dtoverlay=hifiberry-dacplus-std,<param>=<val>
  68 +Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
  69 +                                Digital volume control. Enable with
  70 +                                "dtoverlay=hifiberry-dacplus,24db_digital_gain"
  71 +                                (The default behaviour is that the Digital
  72 +                                volume control is limited to a maximum of
  73 +                                0dB. ie. it can attenuate but not provide
  74 +                                gain. For most users, this will be desired
  75 +                                as it will prevent clipping. By appending
  76 +                                the 24dB_digital_gain parameter, the Digital
  77 +                                volume control will allow up to 24dB of
  78 +                                gain. If this parameter is enabled, it is the
  79 +                                responsibility of the user to ensure that
  80 +                                the Digital volume control is set to a value
  81 +                                that does not result in clipping/distortion!)
  82 +        leds_off                If set to 'true' the onboard indicator LEDs
  83 +                                are switched off at all times.
  84 +
  85 +
  86  Name:   hifiberry-dacplusadc
  87  Info:   Configures the HifiBerry DAC+ADC audio card
  88  Load:   dtoverlay=hifiberry-dacplusadc,<param>=<val>
  89 --- /dev/null
  90 +++ b/arch/arm/boot/dts/overlays/hifiberry-dacplus-pro-overlay.dts
  91 @@ -0,0 +1,64 @@
  92 +// Definitions for HiFiBerry DAC+ PRO, with onboard clocks
  93 +/dts-v1/;
  94 +/plugin/;
  95 +
  96 +/ {
  97 +       compatible = "brcm,bcm2835";
  98 +
  99 +       fragment@0 {
 100 +               target-path = "/";
 101 +               __overlay__ {
 102 +                       dacpro_osc: dacpro_osc {
 103 +                               compatible = "hifiberry,dacpro-clk";
 104 +                               #clock-cells = <0>;
 105 +                       };
 106 +               };
 107 +       };
 108 +
 109 +       frag1: fragment@1 {
 110 +               target = <&i2s_clk_consumer>;
 111 +               __overlay__ {
 112 +                       status = "okay";
 113 +               };
 114 +       };
 115 +
 116 +       fragment@2 {
 117 +               target = <&i2c1>;
 118 +               __overlay__ {
 119 +                       #address-cells = <1>;
 120 +                       #size-cells = <0>;
 121 +                       status = "okay";
 122 +
 123 +                       pcm5122@4d {
 124 +                               #sound-dai-cells = <0>;
 125 +                               compatible = "ti,pcm5122";
 126 +                               reg = <0x4d>;
 127 +                               clocks = <&dacpro_osc>;
 128 +                               AVDD-supply = <&vdd_3v3_reg>;
 129 +                               DVDD-supply = <&vdd_3v3_reg>;
 130 +                               CPVDD-supply = <&vdd_3v3_reg>;
 131 +                               status = "okay";
 132 +                       };
 133 +                       hpamp: hpamp@60 {
 134 +                               compatible = "ti,tpa6130a2";
 135 +                               reg = <0x60>;
 136 +                               status = "disabled";
 137 +                       };
 138 +               };
 139 +       };
 140 +
 141 +       fragment@3 {
 142 +               target = <&sound>;
 143 +               hifiberry_dacplus: __overlay__ {
 144 +                       compatible = "hifiberry,hifiberry-dacplus";
 145 +                       i2s-controller = <&i2s_clk_consumer>;
 146 +                       status = "okay";
 147 +               };
 148 +       };
 149 +
 150 +       __overrides__ {
 151 +               24db_digital_gain =
 152 +                       <&hifiberry_dacplus>,"hifiberry,24db_digital_gain?";
 153 +               leds_off = <&hifiberry_dacplus>,"hifiberry-dacplus,leds_off?";
 154 +       };
 155 +};
 156 --- /dev/null
 157 +++ b/arch/arm/boot/dts/overlays/hifiberry-dacplus-std-overlay.dts
 158 @@ -0,0 +1,65 @@
 159 +// Definitions for HiFiBerry DAC+ Standard w/o onboard clocks
 160 +/dts-v1/;
 161 +/plugin/;
 162 +
 163 +/ {
 164 +       compatible = "brcm,bcm2835";
 165 +
 166 +       fragment@0 {
 167 +               target-path = "/";
 168 +               __overlay__ {
 169 +                       dacpro_osc: dacpro_osc {
 170 +                               compatible = "hifiberry,dacpro-clk";
 171 +                               #clock-cells = <0>;
 172 +                       };
 173 +               };
 174 +       };
 175 +
 176 +       fragment@1 {
 177 +               target = <&i2s_clk_producer>;
 178 +               __overlay__ {
 179 +                       status = "okay";
 180 +               };
 181 +       };
 182 +
 183 +       fragment@2 {
 184 +               target = <&i2c1>;
 185 +               __overlay__ {
 186 +                       #address-cells = <1>;
 187 +                       #size-cells = <0>;
 188 +                       status = "okay";
 189 +
 190 +                       pcm5122@4d {
 191 +                               #sound-dai-cells = <0>;
 192 +                               compatible = "ti,pcm5122";
 193 +                               reg = <0x4d>;
 194 +                               clocks = <&dacpro_osc>;
 195 +                               AVDD-supply = <&vdd_3v3_reg>;
 196 +                               DVDD-supply = <&vdd_3v3_reg>;
 197 +                               CPVDD-supply = <&vdd_3v3_reg>;
 198 +                               status = "okay";
 199 +                       };
 200 +                       hpamp: hpamp@60 {
 201 +                               compatible = "ti,tpa6130a2";
 202 +                               reg = <0x60>;
 203 +                               status = "disabled";
 204 +                       };
 205 +               };
 206 +       };
 207 +
 208 +       fragment@3 {
 209 +               target = <&sound>;
 210 +               hifiberry_dacplus: __overlay__ {
 211 +                       compatible = "hifiberry,hifiberry-dacplus";
 212 +                       i2s-controller = <&i2s_clk_producer>;
 213 +                       hifiberry-dacplus,slave;
 214 +                       status = "okay";
 215 +               };
 216 +       };
 217 +
 218 +       __overrides__ {
 219 +               24db_digital_gain =
 220 +                       <&hifiberry_dacplus>,"hifiberry,24db_digital_gain?";
 221 +               leds_off = <&hifiberry_dacplus>,"hifiberry-dacplus,leds_off?";
 222 +       };
 223 +};