Commit 9148e21d authored by Jingju Hou's avatar Jingju Hou Committed by Greg Kroah-Hartman

net: phy: marvell: clear wol event before setting it

[ Upstream commit b6a930fa ]

If WOL event happened once, the LED[2] interrupt pin will not be
cleared unless we read the CSISR register. If interrupts are in use,
the normal interrupt handling will clear the WOL event. Let's clear the
WOL event before enabling it if !phy_interrupt_is_valid().
Signed-off-by: default avatarJingju Hou <Jingju.Hou@synaptics.com>
Signed-off-by: default avatarJisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarSasha Levin <alexander.levin@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b0471926
......@@ -1409,6 +1409,15 @@ static int m88e1318_set_wol(struct phy_device *phydev,
if (err < 0)
return err;
/* If WOL event happened once, the LED[2] interrupt pin
* will not be cleared unless we reading the interrupt status
* register. If interrupts are in use, the normal interrupt
* handling will clear the WOL event. Clear the WOL event
* before enabling it if !phy_interrupt_is_valid()
*/
if (!phy_interrupt_is_valid(phydev))
phy_read(phydev, MII_M1011_IEVENT);
/* Enable the WOL interrupt */
temp = phy_read(phydev, MII_88E1318S_PHY_CSIER);
temp |= MII_88E1318S_PHY_CSIER_WOL_EIE;
......
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