linux-kernel - Re: [PATCH 35/37] dt-bindings: arm: renesas: document SMARC Carrier-II EVK

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Message-ID: <CAMuHMdWntLTk9ZmAF1voE-tdB+4vVzE804h=qsfaoN-8_6RN_Q@mail.gmail.com>
Date:   Wed, 13 Sep 2023 17:16:52 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     claudiu beznea <claudiu.beznea@...on.dev>
Cc:     Rob Herring <robh@...nel.org>, mturquette@...libre.com,
        sboyd@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, ulf.hansson@...aro.org,
        linus.walleij@...aro.org, gregkh@...uxfoundation.org,
        jirislaby@...nel.org, magnus.damm@...il.com,
        catalin.marinas@....com, will@...nel.org,
        prabhakar.mahadev-lad.rj@...renesas.com,
        biju.das.jz@...renesas.com, quic_bjorande@...cinc.com,
        arnd@...db.de, konrad.dybcio@...aro.org, neil.armstrong@...aro.org,
        nfraprado@...labora.com, rafal@...ecki.pl,
        wsa+renesas@...g-engineering.com,
        linux-renesas-soc@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mmc@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-serial@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
Subject: Re: [PATCH 35/37] dt-bindings: arm: renesas: document SMARC
 Carrier-II EVK

Hi Claudiu,

On Wed, Sep 13, 2023 at 7:32 AM claudiu beznea <claudiu.beznea@...on.dev> wrote:
> On 12.09.2023 19:16, Rob Herring wrote:
> > On Tue, Sep 12, 2023 at 07:51:55AM +0300, Claudiu wrote:
> >> From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
> >>
> >> Document Renesas SMARC Carrier-II EVK board which is based on RZ/G3S
> >> (R9A08G045) SoC. The SMARC Carrier-II EVK consists of RZ/G3S SoM module and
> >> SMARC Carrier-II carrier board, the SoM module sits on top of carrier
> >> board.
> >>
> >> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>

Thanks for your patch!

> >> --- a/Documentation/devicetree/bindings/soc/renesas/renesas.yaml
> >> +++ b/Documentation/devicetree/bindings/soc/renesas/renesas.yaml
> >> @@ -476,6 +476,8 @@ properties:
> >>
> >>        - description: RZ/G3S (R9A08G045)
> >>          items:
> >> +          - enum:
> >> +              - renesas,smarc2-evk # SMARC Carrier-II EVK
> >
> > You just changed the existing binding...
> >
> >>            - enum:
> >>                - renesas,r9a08g045s33 # PCIe support
> >
> > This is the SoM module?
>
> No, this is a SoC variant which supports PCIe.

Ideally, we need a compatible value for the SoM as well, as the SoM
can be used stand-alone, or plugged in a different carrier board.

For iWave Systems RZ/G1E SODIMM, we have that.
For the existing RZ/G2L variants, we forgot, but it can still be added...

>
> > You either need to squash this change or add
> > another case with 3 entries and maintain the 2 entry case. (there's no
> > way to express any entry at the beginning or middle can be optional)
> >
> >>            - const: renesas,r9a08g045

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

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