arch/arm/boot/dts/overlays/audioinjector-isolated-soundcard-overlay.dts

   1 // Definitions for audioinjector.net audio isolated soundcard
   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-path = "/";
  17                 __overlay__ {
  18                         cs4272_mclk: codec-mclk {
  19                                 compatible = "fixed-clock";
  20                                 #clock-cells = <0>;
  21                                 clock-frequency = <24576000>;
  22                         };
  23                 };
  24         };
  25
  26         fragment@2 {
  27                 target = <&i2c1>;
  28                 __overlay__ {
  29                         #address-cells = <1>;
  30                         #size-cells = <0>;
  31                         status = "okay";
  32
  33                         cs4272: cs4271@10 {
  34                                 #sound-dai-cells = <0>;
  35                                 compatible = "cirrus,cs4271";
  36                                 reg = <0x10>;
  37                                 reset-gpio = <&gpio 5 0>;
  38                                 clocks = <&cs4272_mclk>;
  39                                 clock-names = "mclk";
  40                                 status = "okay";
  41                         };
  42                 };
  43         };
  44
  45         fragment@3 {
  46                 target = <&sound>;
  47                 snd: __overlay__ {
  48                         compatible = "ai,audioinjector-isolated-soundcard";
  49                         mute-gpios = <&gpio 17 0>;
  50                         i2s-controller = <&i2s>;
  51                         codec = <&cs4272>;
  52                         status = "okay";
  53                 };
  54         };
  55 };