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

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Add a property to control mipi tx drive current:
"mipitx-current-drive"

Signed-off-by: Jitao Shi <jitao.shi@xxxxxxxxxxxx>
---
 .../devicetree/bindings/display/mediatek/mediatek,dsi.txt     | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
index a19a6cc375ed..780201ddcd5c 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
@@ -33,6 +33,9 @@ Required properties:
 - #clock-cells: must be <0>;
 - #phy-cells: must be <0>.
 
+Optional properties:
+- mipitx-current-drive: adjust driving current, should be 1 ~ 0xF
+
 Example:
 
 mipi_tx0: mipi-dphy@10215000 {
@@ -42,6 +45,7 @@ mipi_tx0: mipi-dphy@10215000 {
 	clock-output-names = "mipi_tx0_pll";
 	#clock-cells = <0>;
 	#phy-cells = <0>;
+	mipitx-current-drive = <0x8>;
 };
 
 dsi0: dsi@1401b000 {
-- 
2.21.0
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