mirror_ubuntu-kernels/Documentation/devicetree/bindings/sound/rockchip,rk3288-hdmi-analog.txt

37 lines
1.3 KiB
Plaintext

ROCKCHIP RK3288 with HDMI and analog audio
Required properties:
- compatible: "rockchip,rk3288-hdmi-analog"
- 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 analog audio codec.
- rockchip,routing: A list of the connections between audio components.
Each entry is a pair of strings, the first being the
connection's sink, the second being the connection's
source. For this driver the first string should always be
"Analog".
Optional properties:
- rockchip,hp-en-gpios = The phandle of the GPIO that power up/down the
headphone (when the analog output is an headphone).
- rockchip,hp-det-gpios = The phandle of the GPIO that detects the headphone
(when the analog output is an headphone).
- pinctrl-names, pinctrl-0: Please refer to pinctrl-bindings.txt
Example:
sound {
compatible = "rockchip,rk3288-hdmi-analog";
rockchip,model = "Analog audio output";
rockchip,i2s-controller = <&i2s>;
rockchip,audio-codec = <&es8388>;
rockchip,routing = "Analog", "LOUT2",
"Analog", "ROUT2";
rockchip,hp-en-gpios = <&gpio8 0 GPIO_ACTIVE_HIGH>;
rockchip,hp-det-gpios = <&gpio7 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&headphone>;
};