linux-kernel - Re: [PATCH] dt-bindings: mmc: fsl-imx-esdhc: allow more compatible combinations

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Message-ID: <0ab84fb8-6173-54e0-abad-a0e0e4ba82e7@linaro.org>
Date:   Sat, 7 Jan 2023 15:09:24 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Andreas Kemnade <andreas@...nade.info>
Cc:     ulf.hansson@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        linux-imx@....com, linux-mmc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: mmc: fsl-imx-esdhc: allow more compatible
 combinations

On 07/01/2023 15:07, Andreas Kemnade wrote:
> On Sat, 7 Jan 2023 15:00:56 +0100
> Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org> wrote:
> 
> [...]
>>>> I asked to remove half-compatible. Not to enforce.
>>>>  
> so you are saying that allowing
> compatible = "A", "B" 
> is not ok, if B is not fully compatible. I agree with that
> one.

I did not say that. It's not related to this problem.

Again - you cannot have device which is and is not compatible with
something else. It's not a Schroedinger's cat to be in two states,
unless you explicitly document the cases (there are exception). If this
is such exception, it requires it's own documentation.

Best regards,
Krzysztof