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From: "Rob Herring (Arm)" <robh@kernel.org>
To: "Sandy Huang" <hjc@rock-chips.com>,
	"Heiko Stübner" <heiko@sntech.de>, "Andy Yan" <andyshrk@163.com>,
	"David Airlie" <airlied@gmail.com>,
	"Simona Vetter" <simona@ffwll.ch>,
	"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
	"Maxime Ripard" <mripard@kernel.org>,
	"Thomas Zimmermann" <tzimmermann@suse.de>,
	"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
	"Conor Dooley" <conor+dt@kernel.org>
Cc: Andy Yan <andy.yan@rock-chip.com>,
	dri-devel@lists.freedesktop.org,
	linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] dt-bindings: display: rockchip: Allow single 'port' node for DP input port
Date: Mon,  9 Nov 2026 12:47:58 -0600	[thread overview]
Message-ID: <20261109184759.467215-1-robh@kernel.org> (raw)

Existing RK3399 users have only a single 'port' node. This was common before
connector nodes were defined. Allow for this since there are already stable
users.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 .../rockchip/rockchip,rk3399-cdn-dp.yaml      | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3399-cdn-dp.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3399-cdn-dp.yaml
index 195f665970bf..425b27346132 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3399-cdn-dp.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3399-cdn-dp.yaml
@@ -63,7 +63,12 @@ properties:
     $ref: /schemas/graph.yaml#/properties/ports
 
     properties:
-      port@0:
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Output of the CDN DP
+
+    patternProperties:
+      '^port(@0)?$':
         $ref: /schemas/graph.yaml#/properties/port
         description: Input of the CDN DP
 
@@ -74,13 +79,11 @@ properties:
           endpoint@1:
             description: Connection to the VOPL
 
-      port@1:
-        $ref: /schemas/graph.yaml#/properties/port
-        description: Output of the CDN DP
-
-    required:
-      - port@0
-      - port@1
+    oneOf:
+      - required:
+          - port@0
+      - required:
+          - port
 
   power-domains:
     maxItems: 1
-- 
2.53.0


WARNING: multiple messages have this Message-ID (diff)
From: "Rob Herring (Arm)" <robh@kernel.org>
To: "Sandy Huang" <hjc@rock-chips.com>,
	"Heiko Stübner" <heiko@sntech.de>, "Andy Yan" <andyshrk@163.com>,
	"David Airlie" <airlied@gmail.com>,
	"Simona Vetter" <simona@ffwll.ch>,
	"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
	"Maxime Ripard" <mripard@kernel.org>,
	"Thomas Zimmermann" <tzimmermann@suse.de>,
	"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
	"Conor Dooley" <conor+dt@kernel.org>
Cc: Andy Yan <andy.yan@rock-chip.com>,
	dri-devel@lists.freedesktop.org,
	linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] dt-bindings: display: rockchip: Allow single 'port' node for DP input port
Date: Mon,  9 Nov 2026 12:47:58 -0600	[thread overview]
Message-ID: <20261109184759.467215-1-robh@kernel.org> (raw)

Existing RK3399 users have only a single 'port' node. This was common before
connector nodes were defined. Allow for this since there are already stable
users.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 .../rockchip/rockchip,rk3399-cdn-dp.yaml      | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3399-cdn-dp.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3399-cdn-dp.yaml
index 195f665970bf..425b27346132 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3399-cdn-dp.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3399-cdn-dp.yaml
@@ -63,7 +63,12 @@ properties:
     $ref: /schemas/graph.yaml#/properties/ports
 
     properties:
-      port@0:
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Output of the CDN DP
+
+    patternProperties:
+      '^port(@0)?$':
         $ref: /schemas/graph.yaml#/properties/port
         description: Input of the CDN DP
 
@@ -74,13 +79,11 @@ properties:
           endpoint@1:
             description: Connection to the VOPL
 
-      port@1:
-        $ref: /schemas/graph.yaml#/properties/port
-        description: Output of the CDN DP
-
-    required:
-      - port@0
-      - port@1
+    oneOf:
+      - required:
+          - port@0
+      - required:
+          - port
 
   power-domains:
     maxItems: 1
-- 
2.53.0


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

             reply	other threads:[~2026-11-09 18:48 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-09 18:47 Rob Herring (Arm) [this message]
2026-11-09 18:47 ` [PATCH] dt-bindings: display: rockchip: Allow single 'port' node for DP input port Rob Herring (Arm)

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