arch/arm/boot/dts/overlays/ugreen-dabboard-overlay.dts

   1 // Definitions for the ugreen dabboard I2S
   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                         dmic_codec: dmic-codec {
  19                                 #sound-dai-cells = <0>;
  20                                 compatible = "dmic-codec";
  21                                 status = "okay";
  22                         };
  23                 };
  24         };
  25
  26         fragment@2 {
  27                 target = <&sound>;
  28                 sound_overlay: __overlay__ {
  29                         compatible = "simple-audio-card";
  30                         simple-audio-card,format = "i2s";
  31                         simple-audio-card,name = "dabboard";
  32                         simple-audio-card,bitclock-master = <&dailink0_slave>;
  33                         simple-audio-card,frame-master = <&dailink0_slave>;
  34                         simple-audio-card,widgets = "Microphone", "Microphone Jack";
  35                         status = "okay";
  36                         simple-audio-card,cpu {
  37                                 sound-dai = <&i2s>;
  38                         };
  39                         dailink0_slave: simple-audio-card,codec {
  40                                 #sound-dai-cells = <0>;
  41                                 sound-dai = <&dmic_codec>;
  42                         };
  43                 };
  44         };
  45
  46         __overrides__ {
  47                 card-name = <&sound_overlay>,"simple-audio-card,name";
  48         };
  49 };