arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts

   1 // Definitions for Piano DAC
   2 /dts-v1/;
   3 /plugin/;
   4
   5 / {
   6         compatible = "brcm,bcm2835";
   7
   8         fragment@0 {
   9                 target = <&i2s>;
  10                 __overlay__ {
  11                         status = "okay";
  12                 };
  13         };
  14
  15         fragment@1 {
  16                 target = <&i2c1>;
  17                 __overlay__ {
  18                         #address-cells = <1>;
  19                         #size-cells = <0>;
  20                         status = "okay";
  21
  22                         allo_pcm5122_4c: pcm5122@4c {
  23                                 #sound-dai-cells = <0>;
  24                                 compatible = "ti,pcm5122";
  25                                 reg = <0x4c>;
  26                                 sound-name-prefix = "Main";
  27                                 status = "okay";
  28                         };
  29                         allo_pcm5122_4d: pcm5122@4d {
  30                                 #sound-dai-cells = <0>;
  31                                 compatible = "ti,pcm5122";
  32                                 reg = <0x4d>;
  33                                 sound-name-prefix = "Sub";
  34                                 status = "okay";
  35                         };
  36                 };
  37         };
  38
  39         fragment@2 {
  40                 target = <&sound>;
  41                 piano_dac: __overlay__ {
  42                         compatible = "allo,piano-dac-plus";
  43                         audio-codec = <&allo_pcm5122_4c &allo_pcm5122_4d>;
  44                         i2s-controller = <&i2s>;
  45                         mute1-gpios = <&gpio 6 1>;
  46                         mute2-gpios = <&gpio 25 1>;
  47                         status = "okay";
  48                 };
  49         };
  50
  51         __overrides__ {
  52                 24db_digital_gain =
  53                         <&piano_dac>,"allo,24db_digital_gain?";
  54                 glb_mclk =
  55                         <&piano_dac>,"allo,glb_mclk?";
  56         };
  57 };