arch/arm/boot/dts/overlays/googlevoicehat-soundcard-overlay.dts

   1 // Definitions for Google voiceHAT v1 soundcard overlay
   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 = <&gpio>;
  17                 __overlay__ {
  18                         googlevoicehat_pins: googlevoicehat_pins {
  19                                 brcm,pins = <16>;
  20                                 brcm,function = <1>; /* out */
  21                                 brcm,pull = <0>; /* up */
  22                         };
  23                 };
  24         };
  25
  26
  27         fragment@2 {
  28                 target-path = "/";
  29                 __overlay__ {
  30                         voicehat-codec {
  31                                 #sound-dai-cells = <0>;
  32                                 compatible = "google,voicehat";
  33                                 pinctrl-names = "default";
  34                                 pinctrl-0 = <&googlevoicehat_pins>;
  35                                 sdmode-gpios= <&gpio 16 0>;
  36                                 status = "okay";
  37                         };
  38                 };
  39         };
  40
  41         fragment@3 {
  42                 target = <&sound>;
  43                 __overlay__ {
  44                         compatible = "googlevoicehat,googlevoicehat-soundcard";
  45                         i2s-controller = <&i2s>;
  46                         status = "okay";
  47                 };
  48         };
  49 };