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phy: micrel: Ensure interrupts are reenabled on resume 

At least on ksz8081, when getting back from power down, interrupts are
disabled. ensure they are reenabled if they were previously enabled.

This fixes resuming which is failing on the xplained boards from atmel
since 321beec504 (net: phy: Use interrupts when available in NOLINK
state)

Fixes: 321beec504 (net: phy: Use interrupts when available in NOLINK state)
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexandre Belloni 2016-02-26 19:18:22 +01:00 committed by David S. Miller
parent edffc2178d
commit f5aba91d7f
1 changed files with 16 additions and 1 deletions
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17
drivers/net/phy/micrel.c
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@ -635,6 +635,21 @@ static void kszphy_get_stats(struct phy_device *phydev,
data[i] = kszphy_get_stat(phydev, i);
}
static int kszphy_resume(struct phy_device *phydev)
{
int value;
mutex_lock(&phydev->lock);
value = phy_read(phydev, MII_BMCR);
phy_write(phydev, MII_BMCR, value & ~BMCR_PDOWN);
kszphy_config_intr(phydev);
mutex_unlock(&phydev->lock);
return 0;
}
static int kszphy_probe(struct phy_device *phydev)
{
const struct kszphy_type *type = phydev->drv->driver_data;
@ -844,7 +859,7 @@ static struct phy_driver ksphy_driver[] = {
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
.suspend = genphy_suspend,
.resume = genphy_resume,
.resume = kszphy_resume,
}, {
.phy_id = PHY_ID_KSZ8061,
.name = "Micrel KSZ8061",