[Freedreno] [PATCH v1] arm64: dts: qcom: sc7180: Add DisplayPort HPD pin dt node

[Stephen Boyd]

Quoting Tanmay Shah (2020-08-17 15:45:27)
> This node defines alternate DP HPD functionality of GPIO.
> 
> Signed-off-by: Tanmay Shah <tanmay at codeaurora.org>
> ---
>  arch/arm64/boot/dts/qcom/sc7180.dtsi | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> index bf2f2bb1aa79..9f97cf5dd9ab 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> @@ -1457,6 +1457,20 @@ pinconf-sd-cd {
>                                         drive-strength = <2>;
>                                 };
>                         };
> +
> +                       dp_hot_plug_det: dp-hot-plug-det {
> +                               pinmux {
> +                                       pins = "gpio117";
> +                                       function = "dp_hot";
> +                               };
> +
> +                               config {

The node name is usualy called pinconf. Please use that.

> +                                       pins = "gpio117";
> +                                       bias-disable;
> +                                       input-enable;
> +                                       drive-strength = <2>;

My understanding is that drive-strength doesn't do anything when the pin
is input. So this line should be removed.

> +                               };
> +                       };
>                 };
>  
>                 gpu: gpu at 5000000 {
>