From: Florian Fainelli <f.fainelli@gmail.com>
Date: Tue, 11 Nov 2014 02:06:20 +0000 (-0800)
Subject: net: bcmgenet: connect and disconnect from the PHY state machine
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~119^2~9^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c96e731c93ff0c9f53442c11c68e50fd07929d27;p=pandora-kernel.git

net: bcmgenet: connect and disconnect from the PHY state machine

phy_disconnect() is the only way to guarantee that we are not going to
schedule more work on the PHY state machine workqueue for that
particular PHY device.

This fixes an issue where a network interface was suspended prior to a
system suspend/resume cycle and would then be resumed as part of
mdio_bus_resume(), since the GENET interface clocks would have been
disabled, this basically resulted in bus errors to appear since we are
invoking the GENET driver adjust_link() callback.

Fixes: b6e978e50444 ("net: bcmgenet: add suspend/resume callbacks")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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