netdev - Re: [PATCH net v2 0/2] Fix 88x3310 leaving power save mode

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Message-Id: <20200414.164825.457585417402726076.davem@davemloft.net>
Date:   Tue, 14 Apr 2020 16:48:25 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     linux@...linux.org.uk
Cc:     andrew@...n.ch, f.fainelli@...il.com, hkallweit1@...il.com,
        mcroce@...hat.com, netdev@...r.kernel.org
Subject: Re: [PATCH net v2 0/2] Fix 88x3310 leaving power save mode

From: Russell King - ARM Linux admin <linux@...linux.org.uk>
Date: Tue, 14 Apr 2020 20:47:53 +0100

> This series fixes a problem with the 88x3310 PHY on Macchiatobin
> coming out of powersave mode noticed by Matteo Croce.  It seems
> that certain PHY firmwares do not properly exit powersave mode,
> resulting in a fibre link not coming up.
> 
> The solution appears to be to soft-reset the PHY after clearing
> the powersave bit.
> 
> We add support for reporting the PHY firmware version to the kernel
> log, and use it to trigger this new behaviour if we have v0.3.x.x
> or more recent firmware on the PHY.  This, however, is a guess as
> the firmware revision documentation does not mention this issue,
> and we know that v0.2.1.0 works without this fix but v0.3.3.0 and
> later does not.

Series applied, thanks.