linux-kernel - Re: [PATCH 1/4] dt-bindings: pinctrl: Combine MediaTek MT67xx pinctrl binding docs

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Date:   Wed, 21 Sep 2022 09:20:43 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Yassine Oudjana <yassine.oudjana@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sean Wang <sean.wang@...nel.org>,
        Andy Teng <andy.teng@...iatek.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     Yassine Oudjana <y.oudjana@...tonmail.com>,
        linux-mediatek@...ts.infradead.org, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] dt-bindings: pinctrl: Combine MediaTek MT67xx pinctrl
 binding docs

On 19/09/2022 19:01, Yassine Oudjana wrote:
> From: Yassine Oudjana <y.oudjana@...tonmail.com>
> 
> Documents for MT6779, MT6795 and MT6797 that currently exist share
> most properties, and each one has slightly differently worded
> descriptions for those properties. Combine all three documents into
> one common document for all MT67xx SoC pin controllers, picking a few
> parts from each and accounting for differences such as items in reg
> and reg-names properties. Also document the MT6765 pin controller
> which currently has a driver but no DT binding documentation. It should
> be possible to also include bindings for MT8183 and MT8188, but these
> have some additional properties that might complicate things a bit,
> so they are left alone for now.
> 

>  properties:
>    compatible:
> -    const: mediatek,mt6795-pinctrl
> +    oneOf:
> +      - enum:
> +          - mediatek,mt6765-pinctrl
> +          - mediatek,mt6795-pinctrl
> +          - mediatek,mt6797-pinctrl
> +      - items:
> +          - const: mediatek,mt6779-pinctrl
> +          - const: syscon

No, this is not like old bindings at all. It's not merging, it's a
change sneaked inside huge diff. Also - probably totally untested on DTS
(or old bindings were broken).

That's a no-go.

Best regards,
Krzysztof