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ASoC: rockchip-max98090: Support usage with and without HDMI

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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>
Link: https://lore.kernel.org/r/20191028071930.145899-3-cychiang@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cheng-Yi Chiang 2019-10-28 15:19:26 +08:00 committed by Mark Brown
parent a9c82d63ca
commit f03412b78a
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GPG Key ID: 24D68B725D5487D0
1 changed files with 25 additions and 2 deletions
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27
Documentation/devicetree/bindings/sound/rockchip-max98090.txt
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@ -5,11 +5,16 @@ 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";
@ -17,3 +22,21 @@ sound {
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>;
};