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Date:   Wed, 06 Feb 2019 17:16:57 -0800 (PST)
Message-Id: <20190206.171657.1823157800327376584.davem@davemloft.net>
To:     miquel.raynal@bootlin.com
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Subject: Re: [PATCH net-next v3] net: dsa: mv88e6xxx: Prevent suspend to RAM
From:   David Miller <davem@davemloft.net>
In-Reply-To: <20190205110728.11451-1-miquel.raynal@bootlin.com>
References: <20190205110728.11451-1-miquel.raynal@bootlin.com>
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From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue,  5 Feb 2019 12:07:28 +0100

> On one hand, the mv88e6xxx driver has a work queue called in loop
> which will attempt register accesses after MDIO bus suspension, that
> entirely freezes the platform during suspend.
> 
> On the other hand, the DSA core is not ready yet to support suspend to
> RAM operation because so far there is no way to recover reliably the
> switch configuration.
> 
> To avoid the kernel to freeze when suspending with a switch driven by
> the mv88e6xxx driver, we choose to prevent the driver suspension and
> in the same way, the whole platform.
> 
> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

Applied to net-next, thanks.