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From:   Rob Herring <robh+dt@kernel.org>
Date:   Fri, 8 Apr 2022 10:14:27 -0500
Message-ID: <CAL_JsqJwcS5VhhOwqV7258YC2zvb759UBt5cusn7f_niswdxbA@mail.gmail.com>
Subject: Re: What means "sysfs: cannot create duplicate filename '/devices/platform/ff000100.localbus/d0000044.gpio-controller'"
To:     Christophe Leroy <christophe.leroy@csgroup.eu>
Cc:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
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On Mon, Apr 4, 2022 at 3:16 AM Christophe Leroy
<christophe.leroy@csgroup.eu> wrote:
>
> Hi,
>
> During boot I'm getting "sysfs: cannot create duplicate filename
> '/devices/platform/ff000100.localbus/d0000044.gpio-controller'"
>
> Below is a grep of "d0000044.gpio-controller" in the log.
>
> Any of what the problem can be and what I have to look for and do to
> avoid it ?

Do you have 2 DT nodes at the same address?

If not maybe something with fw_devlink is screwing up. Can you try
disabling (there's a cmdline option).

Rob