linux-kernel - [PATCH 1/1] dt-bindings: display: nwl-dsi: Allow 'data-lanes' property for port@1

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Message-Id: <20241031194714.2398527-1-Frank.Li@nxp.com>
Date: Thu, 31 Oct 2024 15:47:14 -0400
From: Frank Li <Frank.Li@....com>
To: Andrzej Hajda <andrzej.hajda@...el.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Robert Foss <rfoss@...nel.org>,
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
	Jonas Karlman <jonas@...boo.se>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Guido Gúnther <agx@...xcpu.org>,
	Robert Chiras <robert.chiras@....com>,
	dri-devel@...ts.freedesktop.org (open list:DRM DRIVERS),
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	linux-kernel@...r.kernel.org (open list)
Cc: imx@...ts.linux.dev
Subject: [PATCH 1/1] dt-bindings: display: nwl-dsi: Allow 'data-lanes' property for port@1

Change $ref of port@1 from 'port' to 'port-base' and add 'endpoint'
property referencing video-interfaces.yaml. Allow 'data-lanes' values
1, 2, 3, and 4 for port@1.

Fix below CHECK_DTB warnings:
arch/arm64/boot/dts/freescale/imx8mq-tqma8mq-mba8mx-lvds-tm070jvhg33.dtb:
 dsi@...00000: ports:port@1:endpoint: Unevaluated properties are not allowed ('data-lanes' was unexpected)

Signed-off-by: Frank Li <Frank.Li@....com>
---
 .../bindings/display/bridge/nwl-dsi.yaml       | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml b/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
index 350fb8f400f02..5952e6448ed47 100644
--- a/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
@@ -111,11 +111,27 @@ properties:
         unevaluatedProperties: false
 
       port@1:
-        $ref: /schemas/graph.yaml#/properties/port
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
         description:
           DSI output port node to the panel or the next bridge
           in the chain
 
+        properties:
+          endpoint:
+            $ref: /schemas/media/video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              data-lanes:
+                description: array of physical DSI data lane indexes.
+                minItems: 1
+                items:
+                  - const: 1
+                  - const: 2
+                  - const: 3
+                  - const: 4
+
     required:
       - port@0
       - port@1
-- 
2.34.1