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

   1 // Definitions for JustBoom 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                         pcm5122@4d {
  23                                 #sound-dai-cells = <0>;
  24                                 compatible = "ti,pcm5122";
  25                                 reg = <0x4d>;
  26                                 AVDD-supply = <&vdd_3v3_reg>;
  27                                 DVDD-supply = <&vdd_3v3_reg>;
  28                                 CPVDD-supply = <&vdd_3v3_reg>;
  29                                 status = "okay";
  30                         };
  31                 };
  32         };
  33
  34         fragment@2 {
  35                 target = <&sound>;
  36                 frag2: __overlay__ {
  37                         compatible = "justboom,justboom-dac";
  38                         i2s-controller = <&i2s>;
  39                         status = "okay";
  40                 };
  41         };
  42
  43         __overrides__ {
  44                 24db_digital_gain = <&frag2>,"justboom,24db_digital_gain?";
  45         };
  46 };