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dt-bindings: display: mediatek: control dpi pins mode to avoid leakage 

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>
alistair/sunxi64-5.8
Jitao Shi 2020-04-15 09:13:17 +08:00 committed by Chun-Kuang Hu
parent 8f3d9f3542
commit b0ff9b5907
1 changed files with 6 additions and 0 deletions
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6
Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
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@ -17,6 +17,9 @@ Required properties:
Documentation/devicetree/bindings/graph.txt. This port should be connected Documentation/devicetree/bindings/graph.txt. This port should be connected
to the input port of an attached HDMI or LVDS encoder chip. to the input port of an attached HDMI or LVDS encoder chip.
Optional properties:
- pinctrl-names: Contain "default" and "sleep".
Example: Example:
dpi0: dpi@1401d000 { dpi0: dpi@1401d000 {
@ -27,6 +30,9 @@ dpi0: dpi@1401d000 {
<&mmsys CLK_MM_DPI_ENGINE>, <&mmsys CLK_MM_DPI_ENGINE>,
<&apmixedsys CLK_APMIXED_TVDPLL>; <&apmixedsys CLK_APMIXED_TVDPLL>;
clock-names = "pixel", "engine", "pll"; clock-names = "pixel", "engine", "pll";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&dpi_pin_func>;
pinctrl-1 = <&dpi_pin_idle>;
port { port {
dpi0_out: endpoint { dpi0_out: endpoint {