linux-kernel - Re: [PATCH v2 1/2] dt-bindings: arm64: dts: mediatek: add mt8395-evk board

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Message-ID: <50f7fbdd-8592-7a47-b2d8-a1af8ed93b92@linaro.org>
Date:   Wed, 6 Sep 2023 13:24:23 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Macpaul Lin <macpaul.lin@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Frank Wunderlich <frank-w@...lic-files.de>,
        Bernhard Rosenkränzer <bero@...libre.com>,
        Sean Wang <sean.wang@...iatek.com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Cc:     Bear Wang <bear.wang@...iatek.com>,
        Pablo Sun <pablo.sun@...iatek.com>,
        Macpaul Lin <macpaul@...il.com>
Subject: Re: [PATCH v2 1/2] dt-bindings: arm64: dts: mediatek: add mt8395-evk
 board

On 06/09/2023 12:48, AngeloGioacchino Del Regno wrote:
>> Yes, mt8395 is fully compatible with mt8195.
>>
>> But after reading Angelo's comment, we thought it is necessary to create a new 
>> compatible to avoid confusion for users.
>> https://lore.kernel.org/lkml/bf8394c6-5460-8696-f46b-0c39927aaf84@collabora.com/
>>
>> Although they are fully compatible, developers cannot arbitrarily replace the chip 
>> on the board with another one. So separated bindings might be better.
> 
> Sorry you've misunderstood; I was trying to explain to Krzysztof that the two
> SoCs are fully compatible... my suggestion was in like with what you're trying to
> do as in I am agreeing with your first version, Macpaul, to inherit MT8195.
> 
> So,
> 
> - enum
>      - mediatek,mt8395-evk
> - const: mediatek,mt8195
> - const: mediatek,mt8395

The other way - mt8395 followed by mt8195 :)

Best regards,
Krzysztof