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     1 ROCKCHIP with MAX98090 CODEC
    2 
    3 Required properties:
    4 - compatible: "rockchip,rockchip-audio-max98090"
    5 - rockchip,model: The user-visible name of this sound complex
    6 - rockchip,i2s-controller: The phandle of the Rockchip I2S controller that's
    7   connected to the CODEC
    8 
    9 Optional properties:
   10 - rockchip,audio-codec: The phandle of the MAX98090 audio codec.
   11 - rockchip,headset-codec: The phandle of Ext chip for jack detection. This is
   12                           required if there is rockchip,audio-codec.
   13 - rockchip,hdmi-codec: The phandle of HDMI device for HDMI codec.
   14 
   15 Example:
   16 
   17 /* For max98090-only board. */
   18 sound {
   19         compatible = "rockchip,rockchip-audio-max98090";
   20         rockchip,model = "ROCKCHIP-I2S";
   21         rockchip,i2s-controller = <&i2s>;
   22         rockchip,audio-codec = <&max98090>;
   23         rockchip,headset-codec = <&headsetcodec>;
   24 };
   25 
   26 /* For HDMI-only board. */
   27 sound {
   28         compatible = "rockchip,rockchip-audio-max98090";
   29         rockchip,model = "ROCKCHIP-I2S";
   30         rockchip,i2s-controller = <&i2s>;
   31         rockchip,hdmi-codec = <&hdmi>;
   32 };
   33 
   34 /* For max98090 plus HDMI board. */
   35 sound {
   36         compatible = "rockchip,rockchip-audio-max98090";
   37         rockchip,model = "ROCKCHIP-I2S";
   38         rockchip,i2s-controller = <&i2s>;
   39         rockchip,audio-codec = <&max98090>;
   40         rockchip,headset-codec = <&headsetcodec>;
   41         rockchip,hdmi-codec = <&hdmi>;
   42 };
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