linux-kernel - Re: [PATCH] net: phy: marvell: Fix RGMII Tx/Rx delays setting in 88e1121-compatible PHYs

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Message-ID: <5dd77fec0f9a2d38fd4473cd0e357e80aeafe0cb.camel@baikalelectronics.ru>
Date:   Sat, 5 Feb 2022 15:22:44 +0000
From:   <Pavel.Parkhomenko@...kalelectronics.ru>
To:     <andrew@...n.ch>
CC:     <Alexey.Malahov@...kalelectronics.ru>,
        <Sergey.Semin@...kalelectronics.ru>,
        <linux-kernel@...r.kernel.org>, <michael@...pelberg.de>,
        <afleming@...il.com>, <f.fainelli@...il.com>,
        <netdev@...r.kernel.org>
Subject: Re: [PATCH] net: phy: marvell: Fix RGMII Tx/Rx delays setting in
 88e1121-compatible PHYs

On Fri, 04/02/2022 at 14:10 +0100, Andrew Lunn wrote:
> Hi Pavel
> 
> There appears to be another path which has the same issue.
> 
> m88e1118_config_aneg() calls marvell_set_polarity(), which also needs
> a reset afterwards.
> 
> Could you fix this case as well?
> 
> Thanks
>         Andrew

m88e1118_config_aneg() was added back in 2008 and has unconditional
genphy_soft_reset() at the very beginning. I haven't got 88E1118R or
88E11149R by the hand and the full documentation is also not available.
I believe that in this case it would be safe to still issue reset
unconditionally, but do it at the very end of m88e1118_config_aneg().
Anyways, I'd like to post it as a separate patch as I cannot test the fix
properly, unlike previous patch regarding 88E1510.

-- 
Best regards,
Pavel Parkhomenko