u-boot/doc/device-tree-bindings/sound/snow.txt
Simon Glass b4bf71456d sound: Add codec enable to the sound bindings
For U-Boot we allow a GPIO to be specified to enable the codec. Add this
to the relevant binding files.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2019-08-09 10:01:34 -07:00

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Audio Binding for Snow boards
Required properties:
- compatible : Can be one of the following,
"google,snow-audio-max98090" or
"google,snow-audio-max98091" or
"google,snow-audio-max98095"
- samsung,i2s-controller (deprecated): The phandle of the Samsung I2S controller
- samsung,audio-codec (deprecated): The phandle of the audio codec
Required sub-nodes:
- 'cpu' subnode with a 'sound-dai' property containing the phandle of the I2S
controller
- 'codec' subnode with a 'sound-dai' property containing list of phandles
to the CODEC nodes, first entry must be the phandle of the MAX98090,
MAX98091 or MAX98095 CODEC (exact device type is indicated by the compatible
string) and the second entry must be the phandle of the HDMI IP block node
Optional:
- samsung,model: The name of the sound-card
- codec-enable-gpio : The GPIO used to enable the audio codec
Example:
sound {
compatible = "google,snow-audio-max98095";
samsung,model = "Snow-I2S-MAX98095";
samsung,i2s-controller = <&i2s0>;
samsung,audio-codec = <&max98095>;
};