Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt

   1 ROCKCHIP with MAX98357A/RT5514/DA7219 codecs on GRU boards
   2
   3 Required properties:
   4 - compatible: "rockchip,rk3399-gru-sound"
   5 - rockchip,cpu: The phandle of the Rockchip I2S controller that's
   6   connected to the codecs
   7 - rockchip,codec: The phandle of the MAX98357A/RT5514/DA7219 codecs
   8
   9 Example:
  10
  11 sound {
  12         compatible = "rockchip,rk3399-gru-sound";
  13         rockchip,cpu = <&i2s0>;
  14         rockchip,codec = <&max98357a &rt5514 &da7219>;
  15 };