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[4.14,099/190] dt-bindings: display: mediatek: control dpi pins mode to avoid leakage

Message ID 20200619141638.538977445@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman June 19, 2020, 2:32 p.m. UTC 
From: Jitao Shi <jitao.shi@mediatek.com>

[ Upstream commit b0ff9b590733079f7f9453e5976a9dd2630949e3 ]

Add property "pinctrl-names" to swap pin mode between gpio and dpi mode.
Set the dpi pins to gpio mode and output-low to avoid leakage current
when dpi disabled.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../devicetree/bindings/display/mediatek/mediatek,dpi.txt   | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
index b6a7e7397b8b..b944fe067188 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
@@ -16,6 +16,9 @@  Required properties:
   Documentation/devicetree/bindings/graph.txt. This port should be connected
   to the input port of an attached HDMI or LVDS encoder chip.
 
+Optional properties:
+- pinctrl-names: Contain "default" and "sleep".
+
 Example:
 
 dpi0: dpi@1401d000 {
@@ -26,6 +29,9 @@  dpi0: dpi@1401d000 {
 		 <&mmsys CLK_MM_DPI_ENGINE>,
 		 <&apmixedsys CLK_APMIXED_TVDPLL>;
 	clock-names = "pixel", "engine", "pll";
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&dpi_pin_func>;
+	pinctrl-1 = <&dpi_pin_idle>;
 
 	port {
 		dpi0_out: endpoint {