Add support for HDMI codec in rockchip-max98090.
Let user specify HDMI device node in DTS so machine driver can find
hdmi-codec device node for codec DAI.

Signed-off-by: Cheng-Yi Chiang <cychi...@chromium.org>
---
 Documentation/devicetree/bindings/sound/rockchip-max98090.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/rockchip-max98090.txt 
b/Documentation/devicetree/bindings/sound/rockchip-max98090.txt
index a805aa99ad75..97fc838458f7 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-max98090.txt
+++ b/Documentation/devicetree/bindings/sound/rockchip-max98090.txt
@@ -7,6 +7,7 @@ Required properties:
   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
+- rockchip,hdmi-codec: The phandle of HDMI device for HDMI codec.
 
 Example:
 
@@ -16,4 +17,5 @@ sound {
        rockchip,i2s-controller = <&i2s>;
        rockchip,audio-codec = <&max98090>;
        rockchip,headset-codec = <&headsetcodec>;
+       rockchip,hdmi-codec = <&hdmi>;
 };
-- 
2.23.0.237.gc6a4ce50a0-goog

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