linux-kernel - Re: [PATCH] arm64: dts: ensure backward compatibility of the AP807 Xenon

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Date:   Wed, 12 May 2021 17:50:19 +0200
From:   Marcin Wojtas <mw@...ihalf.com>
To:     Grégory Clement <gregory.clement@...tlin.com>
Cc:     linux-arm-kernel@...ts.infradead.org, Andrew Lunn <andrew@...n.ch>,
        devicetree@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH] arm64: dts: ensure backward compatibility of the AP807 Xenon

Hi Gregory,

pon., 22 mar 2021 o 13:14 Andrew Lunn <andrew@...n.ch> napisał(a):
>
> On Mon, Mar 22, 2021 at 01:39:15AM +0100, Marcin Wojtas wrote:
> > A recent switch to a dedicated AP807 compatible string for the Xenon
> > SD/MMC controller result in the driver not being probed when
> > using updated device tree with the older kernel revisions.
> > It may also be problematic for other OSs/firmware that use
> > Linux device tree sources as a reference. Resolve the problem
> > with backward compatibility by restoring a previous compatible
> > string as secondary one.
> >
> > Signed-off-by: Marcin Wojtas <mw@...ihalf.com>
>
> Reviewed-by: Andrew Lunn <andrew@...n.ch>
>

Do you have any feedback about this patch? I just noticed it's not
merged in v5.13-rc1, it would be great to have it in the next release
though.

Best regards,
Marcin