linux-kernel - Re: [PATCH] arm64: dts: renesas: r8a77990: document Ebisu-4D support

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Date:   Tue, 3 Oct 2023 10:53:45 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc:     linux-renesas-soc@...r.kernel.org,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: renesas: r8a77990: document Ebisu-4D support

Hi Wolfram,

On Mon, Oct 2, 2023 at 7:00 PM Wolfram Sang
<wsa+renesas@...g-engineering.com> wrote:
> Document properly that Ebisu-support includes the Ebisu-4D variant, so
> there won't be confusion what happened with support for this board.
>
> Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>

Thanks for your patch!

> --- a/Documentation/devicetree/bindings/soc/renesas/renesas.yaml
> +++ b/Documentation/devicetree/bindings/soc/renesas/renesas.yaml
> @@ -302,7 +302,7 @@ properties:
>        - description: R-Car E3 (R8A77990)
>          items:
>            - enum:
> -              - renesas,ebisu # Ebisu (RTP0RC77990SEB0010S)
> +              - renesas,ebisu # Ebisu/Ebisu-4D (RTP0RC77990SEB0010S)

Ebisu-4D has a different part number: RTP0RC77990SEB0020S.

According to the schematics, the only difference is the presence of
four DRAM chips ("4D") instead of two.

The rest LGTM.

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