Re: [PATCH v3 3/4] dt-bindings: serial: renesas,scif: Document R9A09G057 support

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Hi Prabhakar,

On Mon, Mar 18, 2024 at 6:22 PM Prabhakar <prabhakar.csengg@xxxxxxxxx> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
>
> Document support for the Serial Communication Interface with FIFO (SCIF)
> available in the Renesas RZ/V2H(P) (R9A09G057) SoC. The SCIF interface in
> the Renesas RZ/V2H(P) is similar to that available in the RZ/G2L
> (R9A07G044) SoC, with the only difference being that the RZ/V2H(P) SoC has
> three additional interrupts: one for Tx end/Rx ready and the other two for
> Rx and Tx buffer full, which are edge-triggered.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> ---
> v2->v3
> - Added SoC specific compat string

Thanks for the update!

> --- a/Documentation/devicetree/bindings/serial/renesas,scif.yaml
> +++ b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
> @@ -79,6 +79,8 @@ properties:
>                - renesas,scif-r9a08g045      # RZ/G3S
>            - const: renesas,scif-r9a07g044   # RZ/G2{L,LC} fallback
>
> +      - const: renesas,scif-r9a09g057       # RZ/V2H(P)
> +
>    reg:
>      maxItems: 1
>
> @@ -204,6 +206,37 @@ allOf:
>              - const: dri
>              - const: tei
>
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: renesas,scif-r9a09g057
> +    then:
> +      properties:
> +        interrupts:
> +          items:
> +            - description: Error interrupt

[...]

These descriptions should be at the top level.  The SoC-specific rules
should just restrict the lower limit (interrupts/minItems).

> +
> +        interrupt-names:
> +          items:
> +            - const: eri

[...]

Likewise.

In addition, you should restrict clocks/maxItems to 1, as on RZ/V2H
only the UART functional clock is supported.

Gr{oetje,eeting}s,

                        Geert


--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds





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