phy: make some bits preserved while setup forced mode

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When tested the PHY SGMII Loopback:
1.set the LOOPBACK bit,
2.set the autoneg to AUTONEG_DISABLE, it calls the
genphy_setup_forced which will clear the bit.

The BMCR_LOOPBACK bit should be preserved.

As Florian pointed out that other bits should be preserved too.
So I make the BMCR_ISOLATE and BMCR_PDOWN as well.

Signed-off-by: Weidong Wang <wangweidong1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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wangweidong 2016-04-14 15:43:52 +08:00 • committed by David S. Miller

parent 4e811b1e11

commit f48256efed

1 changed files with 2 additions and 1 deletions

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drivers/net/phy/phy_device.c

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