On 02/08/17 10:42, Hans Verkuil wrote:
> From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
>
> Document the bindings for the cec-gpio module for hardware where the
> CEC pin is connected to a GPIO pin.
ping?
>
> Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
> ---
> Documentation/devicetree/bindings/media/cec-gpio.txt | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/media/cec-gpio.txt
>
> diff --git a/Documentation/devicetree/bindings/media/cec-gpio.txt b/Documentation/devicetree/bindings/media/cec-gpio.txt
> new file mode 100644
> index 000000000000..58fa56080cda
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/cec-gpio.txt
> @@ -0,0 +1,18 @@
> +* HDMI CEC GPIO driver
> +
> +The HDMI CEC GPIO module supports CEC implementations where the CEC pin
> +is hooked up to a pull-up GPIO pin.
> +
> +The CEC GPIO
> +
> +Required properties:
> + - compatible: value must be "cec-gpio"
> + - gpio: gpio that the CEC line is connected to
> +
> +Example for the Raspberry Pi 3 where the CEC line is connected to
> +pin 7 aka BCM4 aka GPCLK0 on the GPIO pin header:
> +
> +cec-gpio {
> + compatible = "cec-gpio";
> + gpio = <&gpio 4 GPIO_ACTIVE_HIGH>;
> +};
>
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