[PATCH v4 1/4] dt-bindings: display: mediatek: add property to control mipi tx drive current

[Chun-Kuang Hu]

Hi, Jitao:

Jitao Shi <jitao.shi at mediatek.com> 於 2020年3月31日 週二 下午4:28寫道：
>
> Add a property to control mipi tx drive current:
> "drive-strength-microamp"

Reviewed-by: Chun-Kuang Hu <chunkuang.hu at kernel.org>

>
> Signed-off-by: Jitao Shi <jitao.shi at mediatek.com>
> ---
>  .../devicetree/bindings/display/mediatek/mediatek,dsi.txt    | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
> index a19a6cc375ed..d78b6d6d8fab 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
> @@ -33,6 +33,10 @@ Required properties:
>  - #clock-cells: must be <0>;
>  - #phy-cells: must be <0>.
>
> +Optional properties:
> +- drive-strength-microamp: adjust driving current, should be 3000 ~ 6000. And
> +                                                  the step is 200.
> +
>  Example:
>
>  mipi_tx0: mipi-dphy at 10215000 {
> @@ -42,6 +46,7 @@ mipi_tx0: mipi-dphy at 10215000 {
>         clock-output-names = "mipi_tx0_pll";
>         #clock-cells = <0>;
>         #phy-cells = <0>;
> +       drive-strength-microamp = <4600>;
>  };
>
>  dsi0: dsi at 1401b000 {
> --
> 2.21.0
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