[v6] Add support for DU and DSI on the Renesas RZ/G3E SoC

[PATCH v6 09/21] dt-bindings: display: renesas,rzg2l-du: Refuse port@1 for RZ/G2UL

Posted by Tommaso Merciai 3 days, 8 hours ago

The RZ/G2UL DU supports only a single port@0 DPI. Explicitly refuse
port@1 in the ports node.

Fixes: 2ef7cb1cea7d ("dt-bindings: display: renesas,rzg2l-du: Document RZ/G2UL DU bindings")
Cc: stable@vger.kernel.org
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
v5->v6:
 - New patch.

 Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
index 2cc66dcef870..5add3b832eab 100644
--- a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
+++ b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
@@ -102,6 +102,7 @@ allOf:
           properties:
             port@0:
               description: DPI
+            port@1: false
 
           required:
             - port@0
-- 
2.43.0

Re: [PATCH v6 09/21] dt-bindings: display: renesas,rzg2l-du: Refuse port@1 for RZ/G2UL

Posted by Krzysztof Kozlowski 2 days, 12 hours ago

On Wed, Apr 08, 2026 at 12:36:54PM +0200, Tommaso Merciai wrote:
> The RZ/G2UL DU supports only a single port@0 DPI. Explicitly refuse
> port@1 in the ports node.
> 
> Fixes: 2ef7cb1cea7d ("dt-bindings: display: renesas,rzg2l-du: Document RZ/G2UL DU bindings")
> Cc: stable@vger.kernel.org

Please describe bug being fixed here in such case.

Commit msg so far explains none.

Best regards,
Krzysztof

Re: [PATCH v6 09/21] dt-bindings: display: renesas,rzg2l-du: Refuse port@1 for RZ/G2UL

Posted by Laurent Pinchart 3 days, 6 hours ago

On Wed, Apr 08, 2026 at 12:36:54PM +0200, Tommaso Merciai wrote:
> The RZ/G2UL DU supports only a single port@0 DPI. Explicitly refuse
> port@1 in the ports node.
> 
> Fixes: 2ef7cb1cea7d ("dt-bindings: display: renesas,rzg2l-du: Document RZ/G2UL DU bindings")
> Cc: stable@vger.kernel.org
> Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

> ---
> v5->v6:
>  - New patch.
> 
>  Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
> index 2cc66dcef870..5add3b832eab 100644
> --- a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
> +++ b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
> @@ -102,6 +102,7 @@ allOf:
>            properties:
>              port@0:
>                description: DPI
> +            port@1: false
>  
>            required:
>              - port@0

-- 
Regards,

Laurent Pinchart