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

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Date: Mon, 19 Feb 2024 10:23:49 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Michael Walle <mwalle@...nel.org>, 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

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".

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

Cheers,
Angelo