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

[Biju Das]

Hi Tommaso,

> -----Original Message-----
> From: Tommaso Merciai <tommaso.merciai.xr@xxxxxxxxxxxxxx>
> Sent: 08 July 2026 17:46
> Subject: Re: [PATCH 07/16] dt-bindings: display: renesas,rzg2l-du: Document RZ/G3L SoC
> 
> Hi Biju,
> Thanks for your patch.
> 
> On Sat, Jul 04, 2026 at 10:34:17AM +0100, Biju wrote:
> > From: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> >
> > 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@xxxxxxxxxxxxxx>
> > ---
> >  .../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.

Good catch. My binding test did not catch this.

I will fix it in next version.

Cheers,
Biju