| Message ID | 20200303052722.94795-3-jitao.shi@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | mt8183 dpi supports dual edge and pin mode swap | expand |
On Tue, Mar 03, 2020 at 01:27:18PM +0800, Jitao Shi wrote: > 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. > > Signed-off-by: Jitao Shi <jitao.shi@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..77ca32a32399 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". Doesn't match the example. > + pinctrl-names see Documentation/devicetree/bindings/pinctrlpinctrl-bindings.txt > + > Example: > > dpi0: dpi@1401d000 { > @@ -27,6 +31,9 @@ dpi0: dpi@1401d000 { > <&mmsys CLK_MM_DPI_ENGINE>, > <&apmixedsys CLK_APMIXED_TVDPLL>; > clock-names = "pixel", "engine", "pll"; > + pinctrl-names = "active", "idle"; > + pinctrl-0 = <&dpi_pin_func>; > + pinctrl-1 = <&dpi_pin_idle>; > > port { > dpi0_out: endpoint { > -- > 2.21.0
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt index 58914cf681b8..77ca32a32399 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@1401d000 { @@ -27,6 +31,9 @@ dpi0: dpi@1401d000 { <&mmsys CLK_MM_DPI_ENGINE>, <&apmixedsys CLK_APMIXED_TVDPLL>; clock-names = "pixel", "engine", "pll"; + pinctrl-names = "active", "idle"; + pinctrl-0 = <&dpi_pin_func>; + pinctrl-1 = <&dpi_pin_idle>; port { dpi0_out: endpoint {
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. Signed-off-by: Jitao Shi <jitao.shi@mediatek.com> --- .../devicetree/bindings/display/mediatek/mediatek,dpi.txt | 7 +++++++ 1 file changed, 7 insertions(+)