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authorJitao Shi <jitao.shi@mediatek.com>2020-04-11 15:44:05 +0800
committerChun-Kuang Hu <chunkuang.hu@kernel.org>2020-04-22 07:04:07 +0800
commitda2a97323133d0c7caeee399881a590eb8e83c34 (patch)
tree19ccf1def33c0c84500cad22d4cd66803470688f
parentdrm/mediatek: set dpi pin mode to gpio low to avoid leakage current (diff)
downloadlinux-dev-da2a97323133d0c7caeee399881a590eb8e83c34.tar.xz
linux-dev-da2a97323133d0c7caeee399881a590eb8e83c34.zip
dt-bindings: display: mediatek: add property to control mipi tx drive current
Add a property to control mipi tx drive current: "drive-strength-microamp" Signed-off-by: Jitao Shi <jitao.shi@mediatek.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
-rw-r--r--Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt5
1 files changed, 5 insertions, 0 deletions
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 {