Add one optional property "rockchip,hdmi-codec" to let user specify HDMI device node in DTS so machine driver can find hdmi-codec device node for HDMI codec DAI.
Use the presence of rockchip,audio-codec and rockchip,hdmi-codec to specify the use case.
Use max98090 only : specify rockchip,audio-codec. Use HDMI only: specify rockchip,hdmi-codec. Use both max98090 and HDMI: specify rockchip,audio-codec and rockchip,hdmi-codec.
Move these properties to optional because they are not needed for HDMI-only use case. "rockchip,audio-codec": The phandle of the MAX98090 audio codec "rockchip,headset-codec": The phandle of Ext chip for jack detection
Signed-off-by: Cheng-Yi Chiang cychiang@chromium.org --- .../bindings/sound/rockchip-max98090.txt | 27 +++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/sound/rockchip-max98090.txt b/Documentation/devicetree/bindings/sound/rockchip-max98090.txt index a805aa99ad75..e9c58b204399 100644 --- a/Documentation/devicetree/bindings/sound/rockchip-max98090.txt +++ b/Documentation/devicetree/bindings/sound/rockchip-max98090.txt @@ -5,15 +5,38 @@ Required properties: - rockchip,model: The user-visible name of this sound complex - rockchip,i2s-controller: The phandle of the Rockchip I2S controller that's connected to the CODEC -- rockchip,audio-codec: The phandle of the MAX98090 audio codec -- rockchip,headset-codec: The phandle of Ext chip for jack detection + +Optional properties: +- rockchip,audio-codec: The phandle of the MAX98090 audio codec. +- rockchip,headset-codec: The phandle of Ext chip for jack detection. This is + required if there is rockchip,audio-codec. +- rockchip,hdmi-codec: The phandle of HDMI device for HDMI codec.
Example:
+/* For max98090-only board. */ +sound { + compatible = "rockchip,rockchip-audio-max98090"; + rockchip,model = "ROCKCHIP-I2S"; + rockchip,i2s-controller = <&i2s>; + rockchip,audio-codec = <&max98090>; + rockchip,headset-codec = <&headsetcodec>; +}; + +/* For HDMI-only board. */ +sound { + compatible = "rockchip,rockchip-audio-max98090"; + rockchip,model = "ROCKCHIP-I2S"; + rockchip,i2s-controller = <&i2s>; + rockchip,hdmi-codec = <&hdmi>; +}; + +/* For max98090 plus HDMI board. */ sound { compatible = "rockchip,rockchip-audio-max98090"; rockchip,model = "ROCKCHIP-I2S"; rockchip,i2s-controller = <&i2s>; rockchip,audio-codec = <&max98090>; rockchip,headset-codec = <&headsetcodec>; + rockchip,hdmi-codec = <&hdmi>; };