* [PATCH AUTOSEL 4.9 19/50] dt-bindings: display: mediatek: control dpi pins mode to avoid leakage
[not found] <20200608232640.3370262-1-sashal@kernel.org>
@ 2020-06-08 23:26 ` Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2020-06-08 23:26 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Sasha Levin, Rob Herring, Jitao Shi, devicetree, dri-devel,
linux-mediatek, Chun-Kuang Hu, linux-arm-kernel
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 --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 {
--
2.25.1
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2020-06-08 23:26 ` [PATCH AUTOSEL 4.9 19/50] dt-bindings: display: mediatek: control dpi pins mode to avoid leakage Sasha Levin
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