net: phy: resume phydev when going to RESUMING
authorZhangfei Gao <zhangfei.gao@linaro.org>
Thu, 15 May 2014 05:35:34 +0000 (13:35 +0800)
committerDavid S. Miller <davem@davemloft.net>
Fri, 16 May 2014 19:17:58 +0000 (15:17 -0400)
commit6e14a5eeb158215881ef4507833a3574d0dbad19
tree729b51179e2cf5a3616b5520684219052722616f
parent0c2e3fa9583192b0255fa9ec0260350e6ed202bd
net: phy: resume phydev when going to RESUMING

With commit be9dad1f9f26604fb ("net: phy: suspend phydev when going
to HALTED"), an unused PHY device will be put in a low-power mode
using BMCR_PDOWN. Some Ethernet drivers might be calling phy_start()
and phy_stop() from ndo_open and ndo_close() respectively, while
calling phy_connect() and phy_disconnect() from probe and remove.
In such a case, the PHY will be powered down during the phy_stop()
call, but will fail to be powered up in phy_start().
This patch fixes this scenario.

Signed-off-by: Jiancheng Xue <xuejiancheng@huawei.com>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/phy/phy.c