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From:   Nick Bowler <nbowler@draconx.ca>
Date:   Sat, 5 Aug 2023 03:10:18 -0400
Message-ID: <CADyTPExypWjMW2PF0EfSFc+vvdzRtNEi_H0p3S-mw1BNWyq6VQ@mail.gmail.com>
Subject: Re: PROBLEM: Broken or delayed ethernet on Xilinx ZCU104 since 5.18 (regression)
To:     Andrew Lunn <andrew@lunn.ch>
Cc:     Rob Herring <robh@kernel.org>,
        Saravana Kannan <saravanak@google.com>,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        netdev@vger.kernel.org, regressions@lists.linux.dev
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Hi,

On 2023-08-05, Andrew Lunn <andrew@lunn.ch> wrote:
>> When I revert that commit, I can locate the phy device under all these
>> locations.
>
> Please do what Russell requested, but also try commenting out the PHY
> reset-gpios line in DT which was added by
> c720a1f5e6ee8cb39c28435efc0819cec84d6ee2.

Removing the reset-gpios line from the dts appears to be sufficient to
restore working behaviour.

> It was also commented out before that change. It could be that gpio
> controller is missing. Do you have the driver for the tca6416 in
> your kernel configuration?

I have CONFIG_GPIO_PCA953X=y which I think is the correct driver?

Thanks,
  Nick