Re: [PATCH 07/16] dt-bindings: display: renesas,rzg2l-du: Document RZ/G3L SoC

[Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>]

Hi Biju,
Thanks for your patch.

On Sat, Jul 04, 2026 at 10:34:17AM +0100, Biju wrote:
> From: Biju Das <biju.das.jz@bp.renesas.com>
> 
> The DU block on the RZ/G3L SoC is identical to the one found on the RZ/G2L
> SoC. However, it supports the DSI, DPI, and LVDS interfaces, while the
> RZ/G2L supports only the DSI and DPI interfaces.
> 
> Due to this difference, a SoC-specific compatible string,
> 'renesas,r9a08g046-du', is added for the RZ/G3L SoC.
> 
> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> ---
>  .../bindings/display/renesas,rzg2l-du.yaml    | 27 +++++++++++++++++--
>  1 file changed, 25 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
> index 7c84a9ecc7a7..65368649fe77 100644
> --- a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
> +++ b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml
> @@ -20,6 +20,7 @@ properties:
>        - enum:
>            - renesas,r9a07g043u-du # RZ/G2UL
>            - renesas,r9a07g044-du # RZ/G2{L,LC}
> +          - renesas,r9a08g046-du # RZ/G3L
>            - renesas,r9a09g057-du # RZ/V2H(P)
>            - renesas,r9a09g077-du # RZ/T2H
>        - items:
> @@ -65,7 +66,7 @@ properties:
>        model-dependent. Each port shall have a single endpoint.
>  
>      patternProperties:
> -      "^port@[0-1]$":
> +      "^port@[0-2]$":
>          $ref: /schemas/graph.yaml#/properties/port
>          unevaluatedProperties: false
>  
> @@ -88,7 +89,6 @@ required:
>    - clocks
>    - clock-names
>    - power-domains
> -  - ports
>    - renesas,vsps
>  
>  additionalProperties: false
> @@ -108,6 +108,7 @@ allOf:
>              port@0:
>                description: DPI
>              port@1: false
> +            port@2: false
>  
>            required:
>              - port@0
> @@ -124,10 +125,31 @@ allOf:
>                description: DSI
>              port@1:
>                description: DPI
> +            port@2: false
>  
>            required:
>              - port@0
>              - port@1
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: renesas,r9a08g046-du
> +    then:
> +      properties:
> +        port:
> +          properties:
> +            endpoint@0:
> +              description: DSI
> +            endpoint@1:
> +              description: DPI
> +            endpoint@2:
> +              description: LVDS

I'm seeing you are using ports + port@{0,1,2} in driver and soc .dtsi
so I think here we will need to have ports + port@{0,1,2} aswell.

Kind Regards,
Tommaso

> +
> +          required:
> +            - port@0
> +            - port@1
> +            - port@2
>    - if:
>        properties:
>          compatible:
> @@ -140,6 +162,7 @@ allOf:
>              port@0:
>                description: DSI
>              port@1: false
> +            port@2: false
>  
>            required:
>              - port@0
> -- 
> 2.43.0
>