linux_dsm_epyc7002/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt

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ROCKCHIP with MAX98357A/RT5514/DA7219 codecs on GRU boards
Required properties:
- compatible: "rockchip,rk3399-gru-sound"
- rockchip,cpu: The phandle of the Rockchip I2S controller that's
connected to the codecs
- rockchip,codec: The phandle of the MAX98357A/RT5514/DA7219 codecs
Example:
sound {
compatible = "rockchip,rk3399-gru-sound";
rockchip,cpu = <&i2s0>;
rockchip,codec = <&max98357a &rt5514 &da7219>;
};