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

[ 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>
zero-colors
Jitao Shi 2020-04-15 09:13:17 +08:00 committed by Greg Kroah-Hartman
parent 4f8c523202
commit 878ca9ebf1
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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@ -16,6 +16,9 @@ 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 {
@ -26,6 +29,9 @@ 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 {