linux-kernel - Re: [PATCH V4 1/3] dt-bindings: mmc: imx-esdhc: Update compatible fallbacks

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Message-ID: <CAHCN7xKpoCrLgFfM30ZgYCgTan7FymhopcMQE0=VkzNuYryu9w@mail.gmail.com>
Date:   Mon, 11 Apr 2022 10:18:49 -0500
From:   Adam Ford <aford173@...il.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     linux-mmc <linux-mmc@...r.kernel.org>,
        Adam Ford-BE <aford@...conembedded.com>,
        Haibo Chen <haibo.chen@....com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        devicetree <devicetree@...r.kernel.org>,
        arm-soc <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V4 1/3] dt-bindings: mmc: imx-esdhc: Update compatible fallbacks

On Mon, Apr 11, 2022 at 1:42 AM Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 10/04/2022 21:35, Adam Ford wrote:
> > The SDHC controller in the imx8mn and imx8mp have the same controller
> > as the imx8mm which is slightly different than that of the imx7d.
> >
> > Using the fallback of the imx8mm enables the controllers to support
> > HS400-ES which is not available on the imx7d. After discussion with NXP,
> > it turns out that the imx8qm should fall back to the imx8qxp, because
> > those have some additional flags not present in the imx8mm.
> >
> > Mark the current state of the fallbacks as deprecated, and add the
> > proper fallbacks so in the future, the deprecated combination can be
> > removed and prevent any future devices from using the wrong fallback.
> >
> > Suggested-by: haibo.chen@....com
> > Signed-off-by: Adam Ford <aford173@...il.com>
>
>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
>
Thanks for the help and guidance.  I always seem to struggle with the
YAML syntax.

>
> Best regards,
> Krzysztof