linux-kernel - Re: [PATCH net-next v2 0/3] net: phy: marvell10g: implement suspend/resume callbacks

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Message-Id: <20190304.104608.454889553821306700.davem@davemloft.net>
Date:   Mon, 04 Mar 2019 10:46:08 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     antoine.tenart@...tlin.com
Cc:     linux@...linux.org.uk, andrew@...n.ch, f.fainelli@...il.com,
        hkallweit1@...il.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, thomas.petazzoni@...tlin.com,
        maxime.chevallier@...tlin.com, gregory.clement@...tlin.com,
        miquel.raynal@...tlin.com, nadavh@...vell.com, stefanc@...vell.com,
        mw@...ihalf.com
Subject: Re: [PATCH net-next v2 0/3] net: phy: marvell10g: implement
 suspend/resume callbacks

From: Antoine Tenart <antoine.tenart@...tlin.com>
Date: Fri,  1 Mar 2019 12:00:44 +0100

> This series implements the suspend/resume callbacks in the marvell10g
> PHY driver:
> 
> - When the PHY isn't used, it is set in low power mode.
> - At boot time we might now know the PHY status (as it's depending on
>   the hardware configuration, or on what the previous stages
>   configured), it is forced in low power.
> 
> Doing this prevents a PHY which was initialized in a previous stage from
> negotiating with the link partner when a local port is down. If the PHY
> isn't shutdown when a port is not used, the link partner's PHY may
> report the link being up while it's not.

Looks like this needs some more discussion and Russell has some
concerns still.

So deferring to the next merge window, sorry.