arch/arm/boot/dts/overlays/iqaudio-dac-overlay.dts

   1 // Definitions for IQaudIO 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 {
  23                                 #sound-dai-cells = <0>;
  24                                 compatible = "ti,pcm5122";
  25                                 reg = <0x4c>;
  26                                 status = "okay";
  27                         };
  28                 };
  29         };
  30
  31         fragment@2 {
  32                 target = <&sound>;
  33                 frag2: __overlay__ {
  34                         compatible = "iqaudio,iqaudio-dac";
  35                         i2s-controller = <&i2s>;
  36                         status = "okay";
  37                 };
  38         };
  39
  40         __overrides__ {
  41                 24db_digital_gain = <&frag2>,"iqaudio,24db_digital_gain?";
  42         };
  43 };