[PATCH v8 3/7] dt-bindings: display: mediatek: control dpi pins mode to avoid leakage

[Jitao Shi]

Add property "pinctrl-names" to swap pin mode between gpio and dpi mode. Set
pin mode to gpio oupput-low to avoid leakage current when dpi disable.

Signed-off-by: Jitao Shi <jitao.shi at mediatek.com>
---
 .../devicetree/bindings/display/mediatek/mediatek,dpi.txt  | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
index 58914cf681b8..a7b1b8bfb65e 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
@@ -17,6 +17,10 @@ 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 "gpiomode" and "dpimode".
+  pinctrl-names see Documentation/devicetree/bindings/pinctrlpinctrl-bindings.txt
+
 Example:
 
 dpi0: dpi at 1401d000 {
@@ -27,6 +31,9 @@ dpi0: dpi at 1401d000 {
 		 <&mmsys CLK_MM_DPI_ENGINE>,
 		 <&apmixedsys CLK_APMIXED_TVDPLL>;
 	clock-names = "pixel", "engine", "pll";
+	pinctrl-names = "gpiomode", "dpimode";
+	pinctrl-0 = <&dpi_pin_gpio>;
+	pinctrl-1 = <&dpi_pin_func>;
 
 	port {
 		dpi0_out: endpoint {
-- 
2.21.0