diff mbox series

[v1,2/3] dt-bindings: drm/bridge: ti-sn65dsi86: Document use-aux-backlight

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

Commit Message

Rajeev Nandan April 14, 2021, 4:39 p.m. UTC
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(+)

Comments

Rob Herring April 15, 2021, 10:04 p.m. UTC | #1
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 mbox series

Patch

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>;