linux-kernel - Re: [PATCH v2 1/2] dt-bindings: arm64: mediatek: add Kontron 3.5"-SBC-i1200

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Message-Id: <CZ8YCQETS7LL.1BLJJZNCLV7DT@kernel.org>
Date: Mon, 19 Feb 2024 10:36:26 +0100
From: "Michael Walle" <mwalle@...nel.org>
To: "AngeloGioacchino Del Regno" <angelogioacchino.delregno@...labora.com>,
 "Rob Herring" <robh@...nel.org>, "Krzysztof Kozlowski"
 <krzysztof.kozlowski+dt@...aro.org>, "Conor Dooley" <conor+dt@...nel.org>,
 "Matthias Brugger" <matthias.bgg@...il.com>
Cc: <devicetree@...r.kernel.org>, "Sean Wang" <sean.wang@...iatek.com>,
 <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
 <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH v2 1/2] dt-bindings: arm64: mediatek: add Kontron
 3.5"-SBC-i1200

On Mon Feb 19, 2024 at 10:23 AM CET, AngeloGioacchino Del Regno wrote:
> Il 19/02/24 09:44, Michael Walle ha scritto:
> > Add the compatible string for the Kontron 3.5"-SBC-i1200 single board
> > computer.
> > 
> > Signed-off-by: Michael Walle <mwalle@...nel.org>
> > ---
> > v2:
> >   - convert enum to const as there is only one specific board
> > 
> >   Documentation/devicetree/bindings/arm/mediatek.yaml | 5 +++++
> >   1 file changed, 5 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/arm/mediatek.yaml b/Documentation/devicetree/bindings/arm/mediatek.yaml
> > index 09f9ffd3ff7b..add167d8b8da 100644
> > --- a/Documentation/devicetree/bindings/arm/mediatek.yaml
> > +++ b/Documentation/devicetree/bindings/arm/mediatek.yaml
> > @@ -357,6 +357,11 @@ properties:
> >                 - radxa,nio-12l
> >             - const: mediatek,mt8395
> >             - const: mediatek,mt8195
> > +      - description: Kontron 3.5"-SBC-i1200
> > +        items:
> > +          - const: kontron,3-5-sbc-i1200
> > +          - const: mediatek,mt8395
> > +          - const: mediatek,mt8195
> >         - items:
> >             - enum:
> >                 - mediatek,mt8516-pumpkin
>
> I understand that you took inspiration from the Google Chromebooks entries, but
> those are separated only because they've got "a bunch of revisions".
>

I don't really care about the description. It's just the way I've
done it in the past. And in this file, there is also google,burnet,
google,cozmo, google,damu, without any further revs.

> For machines that don't have a billion compatible strings, I would suggest to
> add the compatible under a single big entry: like this, the binding is (imo) a
> bit more readable .. and cleaner.
>
> Eventually, the machine name is in the devicetree so we're not losing any kind
> of information anyway... :-)
>
>        - items:
>            - enum:
>                - kontron,3-5-sbc-i1200
>                - mediatek,mt8395-evk
>                - radxa,nio-12l
>            - const: mediatek,mt8395
>            - const: mediatek,mt8195

Ack. I'll give you some time to look at the actual DTS before
posting a new version.

-michael

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