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

   1 /*
   2  * Device Tree overlay for ChipDip DAC
   3  */
   4
   5 /dts-v1/;
   6 /plugin/;
   7
   8 / {
   9         compatible = "brcm,bcm2835";
  10
  11         fragment@0 {
  12                 target = <&i2s>;
  13                 __overlay__ {
  14                         status = "okay";
  15                 };
  16         };
  17
  18         fragment@1 {
  19                 target-path = "/";
  20                 __overlay__ {
  21                         spdif-transmitter {
  22                                 #address-cells = <0>;
  23                                 #size-cells = <0>;
  24                                 #sound-dai-cells = <0>;
  25                                 compatible = "linux,spdif-dit";
  26                                 status = "okay";
  27                         };
  28                 };
  29         };
  30
  31         fragment@2 {
  32                 target = <&sound>;
  33                 __overlay__ {
  34                         compatible = "chipdip,chipdip-dac";
  35                         i2s-controller = <&i2s>;
  36                         sr0-gpios = <&gpio 5 0>;
  37                         sr1-gpios = <&gpio 6 0>;
  38                         sr2-gpios = <&gpio 12 0>;
  39                         res0-gpios = <&gpio 24 0>;
  40                         res1-gpios = <&gpio 27 0>;
  41                         mute-gpios = <&gpio 4 0>;
  42                         sdwn-gpios = <&gpio 13 0>;
  43                         status = "okay";
  44                 };
  45         };
  46 };