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From: Rajeev Nandan <rajeevny@codeaurora.org>
To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
	freedreno@lists.freedesktop.org, devicetree@vger.kernel.org
Cc: Rajeev Nandan <rajeevny@codeaurora.org>,
	linux-kernel@vger.kernel.org, robdclark@gmail.com,
	dianders@chromium.org, mkrishn@codeaurora.org,
	kalyan_t@codeaurora.org, hoegsberg@chromium.org,
	abhinavk@codeaurora.org, seanpaul@chromium.org
Subject: [v1 2/3] dt-bindings: drm/bridge: ti-sn65dsi86: Document use-aux-backlight
Date: Wed, 14 Apr 2021 22:09:49 +0530
Message-ID: <1618418390-15055-3-git-send-email-rajeevny@codeaurora.org> (raw)
In-Reply-To: <1618418390-15055-1-git-send-email-rajeevny@codeaurora.org>

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:
+    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>;
-- 
2.7.4


  parent reply index

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-14 16:39 [v1 0/3] drm: Add support for backlight control of eDP panel on ti-sn65dsi86 bridge Rajeev Nandan
2021-04-14 16:39 ` [v1 1/3] drm/dp: Add DisplayPort aux backlight control support Rajeev Nandan
2021-04-14 16:39 ` Rajeev Nandan [this message]
2021-04-15 22:04   ` [v1 2/3] dt-bindings: drm/bridge: ti-sn65dsi86: Document use-aux-backlight Rob Herring
2021-04-14 16:39 ` [v1 3/3] drm/bridge: ti-sn65dsi86: Add DisplayPort aux backlight support Rajeev Nandan
2021-04-16 23:02 ` [v1 0/3] drm: Add support for backlight control of eDP panel on ti-sn65dsi86 bridge Doug Anderson
2021-04-20  8:14 ` Jani Nikula

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