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

Message ID 20200331082725.81048-2-jitao.shi@mediatek.com
State New
Headers show
Series
  • Config mipi tx current and impedance
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Commit Message

Jitao Shi March 31, 2020, 8:27 a.m. UTC
Add a property to control mipi tx drive current:
"drive-strength-microamp"

Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
 .../devicetree/bindings/display/mediatek/mediatek,dsi.txt    | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Chun-Kuang Hu April 4, 2020, 3:45 p.m. UTC | #1
Hi, Jitao:

Jitao Shi <jitao.shi@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@kernel.org>

>
> Signed-off-by: Jitao Shi <jitao.shi@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@10215000 {
> @@ -42,6 +46,7 @@ mipi_tx0: mipi-dphy@10215000 {
>         clock-output-names = "mipi_tx0_pll";
>         #clock-cells = <0>;
>         #phy-cells = <0>;
> +       drive-strength-microamp = <4600>;
>  };
>
>  dsi0: dsi@1401b000 {
> --
> 2.21.0
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

Patch
diff mbox series

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@10215000 {
@@ -42,6 +46,7 @@  mipi_tx0: mipi-dphy@10215000 {
 	clock-output-names = "mipi_tx0_pll";
 	#clock-cells = <0>;
 	#phy-cells = <0>;
+	drive-strength-microamp = <4600>;
 };
 
 dsi0: dsi@1401b000 {