On 08/10/2017 10:33 AM, 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.
No need to review this, there will be a v3 that will add a second optional
HPD gpio.
Regards,
Hans
>
> Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
> ---
> Documentation/devicetree/bindings/media/cec-gpio.txt | 16 ++++++++++++++++
> 1 file changed, 16 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..e34a175468e2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/cec-gpio.txt
> @@ -0,0 +1,16 @@
> +* HDMI CEC GPIO-based hardware
> +
> +Use these bindings for HDMI CEC hardware where the CEC pin is hooked up
> +to a pull-up GPIO pin.
> +
> +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>;
> +};
>
