linux-kernel - Re: [PATCH] Revert "arm64: dts: amlogic: add missing ethernet reset ID"

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Date:   Tue, 02 Mar 2021 15:28:43 -0800
From:   Kevin Hilman <khilman@...libre.com>
To:     Neil Armstrong <narmstrong@...libre.com>
Cc:     linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Neil Armstrong <narmstrong@...libre.com>,
        Corentin Labbe <clabbe@...libre.com>,
        Jérôme Brunet <jbrunet@...libre.com>
Subject: Re: [PATCH] Revert "arm64: dts: amlogic: add missing ethernet reset
 ID"

Hi Neil,

Neil Armstrong <narmstrong@...libre.com> writes:

> It has been reported on IRC and in KernelCI boot tests, this change breaks
> internal PHY support on the Amlogic G12A/SM1 Based boards.
>
> We suspect the added signal to reset more than the Ethernet MAC but also
> the MDIO/(RG)MII mux used to redirect the MAC signals to the internal PHY.
>
> This reverts commit f3362f0c18174a1f334a419ab7d567a36bd1b3f3 while we find
> and acceptable solution to cleanly reset the Ethernet MAC.
>
> Reported-by: Corentin Labbe <clabbe@...libre.com>
> Acked-by: Jérôme Brunet <jbrunet@...libre.com>
> Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
> ---
> Hi Kevin,
>
> This has been reported to also break on 5.10, when this lands on 5.11, I'll send another
> patch for 5.10 because meson-axg.dtsi needs a conflict resolution on 5.11.

Looks like this never got submitted to v5.10.  I just discovered it that
v5.10 in SEI610 (internal PHY) is broken.

Could you submit this to v5.10 stable also please?

Thanks,

Kevin