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[v15,1/3] dt-bindings: display: mediatek: control dpi pins mode to avoid leakage

Message ID 20200415011319.25559-2-jitao.shi@mediatek.com
State Superseded
Headers show
Series [v15,1/3] dt-bindings: display: mediatek: control dpi pins mode to avoid leakage | expand

Commit Message

Jitao Shi April 15, 2020, 1:13 a.m. UTC 
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>

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

Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>

---
 Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt | 6 ++++++
 1 file changed, 6 insertions(+)

-- 
2.12.5
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Patch

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
index 58914cf681b8..77def4456706 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
@@ -17,6 +17,9 @@  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 {
@@ -27,6 +30,9 @@  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 {