linux-kernel - Re: [PATCH 01/10] dt: bindings: clock: add mtmips SoCs clock device tree binding documentation

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Date:   Tue, 21 Mar 2023 07:56:25 +0100
From:   Sergio Paracuellos <sergio.paracuellos@...il.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Arınç ÜNAL <arinc.unal@...nc9.com>,
        linux-clk@...r.kernel.org, linux-mips@...r.kernel.org,
        tsbogend@...ha.franken.de, john@...ozen.org,
        linux-kernel@...r.kernel.org, p.zabel@...gutronix.de,
        mturquette@...libre.com, sboyd@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, matthias.bgg@...il.com,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 01/10] dt: bindings: clock: add mtmips SoCs clock device
 tree binding documentation

On Tue, Mar 21, 2023 at 7:43 AM Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 21/03/2023 07:38, Arınç ÜNAL wrote:
> >>>>
> >>>> Ah, but indeed there are newer Mediatek MT6xxx and MT8xxx SoCs which are
> >>>> ARM, so mediatek,mtmips-sysc would work.
> >>>
> >>> I can use 'mediatek,mtmips-sysc.yaml' as the name but compatibles will
> >>> start with ralink. There are already some existent compatibles for
> >>> mt762x already having ralink as prefix, so to be coherent ralink
> >>> should be maintained as prefix.
> >>
> >> The compatibles I mentioned start already with mediatek, so why do you
> >> want to introduce incorrect vendor name for these?
> >
> > Can you point out where these compatible strings for mt7620 and mt7628 are?
>
> git grep

Not for *-sysc nodes. The only current one in use (from git grep):

arch/mips/ralink/mt7620.c:      rt_sysc_membase =
plat_of_remap_node("ralink,mt7620a-sysc");

That's the reason I also used prefix ralink for the rest.

Does it make sense to you to maintain this one as ralink,mt7620a-sysc
and add the following with mediatek prefix?

mediatek,mt7620-sysc
mediatek,mt7628-sysc
mediatek,mt7688-sysc

That would be weird IMHO.

> Best regards,
> Krzysztof

Thanks,
    Sergio Paracuellos