| Message ID | 1618418390-15055-3-git-send-email-rajeevny@codeaurora.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm: Add support for backlight control of eDP panel on ti-sn65dsi86 bridge | expand |
On Wed, Apr 14, 2021 at 10:09:49PM +0530, Rajeev Nandan wrote: > If the panel connected to the bridge supports backlight control > using DPCD registers on the DisplayPort aux channel, setting > "use-aux-backlight" property in the bridge node will enable the > registration of a DP aux backlight device from the bridge driver. > > Signed-off-by: Rajeev Nandan <rajeevny@codeaurora.org> > --- > .../devicetree/bindings/display/bridge/ti,sn65dsi86.yaml | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml > index 26932d2..c8d8c00 100644 > --- a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml > +++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml > @@ -58,6 +58,12 @@ properties: > clock-names: > const: refclk > > + use-aux-backlight: use-dp-aux-backlight perhaps. > + type: boolean > + description: > + The panel backlight to be controlled using DPCD registers on > + the DP aux channel. Sounds like a property of the panel, not the bridge. So it should be in the panel node. Rob
diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml index 26932d2..c8d8c00 100644 --- a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml +++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml @@ -58,6 +58,12 @@ properties: clock-names: const: refclk + use-aux-backlight: + type: boolean + description: + The panel backlight to be controlled using DPCD registers on + the DP aux channel. + gpio-controller: true '#gpio-cells': const: 2 @@ -188,6 +194,8 @@ examples: no-hpd; + use-aux-backlight; + ports { #address-cells = <1>; #size-cells = <0>;
If the panel connected to the bridge supports backlight control using DPCD registers on the DisplayPort aux channel, setting "use-aux-backlight" property in the bridge node will enable the registration of a DP aux backlight device from the bridge driver. Signed-off-by: Rajeev Nandan <rajeevny@codeaurora.org> --- .../devicetree/bindings/display/bridge/ti,sn65dsi86.yaml | 8 ++++++++ 1 file changed, 8 insertions(+)