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,bcm2708";
   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                         pcm5122_4c: pcm5122@4c {
  23                                 #sound-dai-cells = <0>;
  24                                 compatible = "ti,pcm5122";
  25                                 reg = <0x4c>;
  26                                 status = "okay";
  27                         };
  28                         pcm5122_4d: pcm5122@4d {
  29                                 #sound-dai-cells = <0>;
  30                                 compatible = "ti,pcm5122";
  31                                 reg = <0x4d>;
  32                                 status = "okay";
  33                         };
  34                 };
  35         };
  36
  37         fragment@2 {
  38                 target = <&sound>;
  39                 piano_dac: __overlay__ {
  40                         compatible = "allo,piano-dac-plus";
  41                         audio-codec = <&pcm5122_4c &pcm5122_4d>;
  42                         i2s-controller = <&i2s>;
  43                         status = "okay";
  44                 };
  45         };
  46
  47         __overrides__ {
  48                 24db_digital_gain =
  49                         <&piano_dac>,"piano,24db_digital_gain?";
  50         };
  51 };