[PATCH v1] net: phy: micrel: Add specific suspend
From: Wenyou Yang <hidden>
Date: 2016-08-04 00:34:01
Also in:
linux-arm-kernel, lkml
Subsystem:
ethernet phy library, networking drivers, the rest · Maintainers:
Andrew Lunn, Heiner Kallweit, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Disable all interrupts when suspend, they will be enabled when resume. Otherwise, the suspend/resume process will be blocked occasionally. Signed-off-by: Wenyou Yang <redacted> Acked-by: Nicolas Ferre <redacted> --- drivers/net/phy/micrel.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 5a8fefc..8cb778a 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c@@ -647,6 +647,23 @@ static void kszphy_get_stats(struct phy_device *phydev, data[i] = kszphy_get_stat(phydev, i); } +int kszphy_suspend(struct phy_device *phydev) +{ + int value; + + mutex_lock(&phydev->lock); + + /* disable interrupts */ + phy_write(phydev, MII_KSZPHY_INTCS, 0x0); + + value = phy_read(phydev, MII_BMCR); + phy_write(phydev, MII_BMCR, value | BMCR_PDOWN); + + mutex_unlock(&phydev->lock); + + return 0; +} + static int kszphy_resume(struct phy_device *phydev) { int value;
@@ -870,7 +887,7 @@ static struct phy_driver ksphy_driver[] = { .get_sset_count = kszphy_get_sset_count, .get_strings = kszphy_get_strings, .get_stats = kszphy_get_stats, - .suspend = genphy_suspend, + .suspend = kszphy_suspend, .resume = kszphy_resume, }, { .phy_id = PHY_ID_KSZ8061,
--
2.7.4