Re: [PATCH v4 1/9] dt-bindings: soc: renesas: Document RZ/V2H EVK board

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Hi Krzysztof,

On Wed, Aug 28, 2024 at 3:34 PM Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote:
>
> On 28/08/2024 14:41, Prabhakar wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> >
> > Add "renesas,rzv2h-evk" which targets the Renesas RZ/V2H ("R9A09G057")
> > EVK board.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> > Acked-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
> > ---
> > Hi Rob, I have restored your Ack with the below change, I hope that's OK.
> >
> > Cheers, Prabhakar
> >
> > v1->v4
> > - Updated 'renesas,gp-evk # GP-EVK' -> 'renesas,rzv2h-evk # RZ/V2H EVK'
> > - Updated commit message
> >
> > v1: https://patchwork.kernel.org/project/linux-renesas-soc/patch/20240724094707.569596-2-prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx/
> > ---
> >  Documentation/devicetree/bindings/soc/renesas/renesas.yaml | 2 ++
> >  1 file changed, 2 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/soc/renesas/renesas.yaml b/Documentation/devicetree/bindings/soc/renesas/renesas.yaml
> > index d582992aaf0e..b7acb65bdecd 100644
> > --- a/Documentation/devicetree/bindings/soc/renesas/renesas.yaml
> > +++ b/Documentation/devicetree/bindings/soc/renesas/renesas.yaml
> > @@ -527,6 +527,8 @@ properties:
> >
> >        - description: RZ/V2H(P) (R9A09G057)
> >          items:
> > +          - enum:
> > +              - renesas,rzv2h-evk # RZ/V2H EVK
> >            - enum:
>
> This is unusual pattern for me, but maybe I miss here something. Commit
> message does not explain why EXISTING boards needs to be changed. What
> does it mean "rzv2h-evk targets evk board"? How does this work?
>
This commit is not changing the existing boards. The entries below the
addition are the RZ/V2H(P) SoC variants. Here we are just adding the
board entry which is based on RZ/V2H SoC [0].
In the board DTS file it will be used as "compatible =
"renesas,rzv2h-evk", "renesas,r9a09g057h44", "renesas,r9a09g057";",
see [1].

               ^^                              ^^
                 ^^

              Board variant             SoC  variant
    Generic RZ/V2H SoC

> You have EVK board and now it is not valid anymore?
>
No this is not the case.

[0] https://www.renesas.com/us/en/products/microcontrollers-microprocessors/rz-mpus/rzv2h-evk-rzv2h-quad-core-vision-ai-mpu-evaluation-kit
[1] https://patchwork.kernel.org/project/linux-renesas-soc/patch/20240828124134.188864-4-prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx/

Cheers,
Prabhakar





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