[PATCH v2] net: phy: micrel: Add specific suspend
From: Wenyou Yang <hidden>
Date: 2016-08-05 06:47:57
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> --- Changes in v2: - Use fairly generic phydrv->config_intr() with PHY_INTERRUPT_DISABLED, then call genphy_suspend(). - Modify kszphy_resume() with PHY_INTERRUPT_ENABLED accordingly. - Add static attribute for kszphy_suspend(). drivers/net/phy/micrel.c | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-)
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 5a8fefc..b598d46 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c@@ -647,17 +647,28 @@ static void kszphy_get_stats(struct phy_device *phydev, data[i] = kszphy_get_stat(phydev, i); } -static int kszphy_resume(struct phy_device *phydev) +static int kszphy_suspend(struct phy_device *phydev) { - int value; + /* Disable PHY Interrupts */ + if (phy_interrupt_is_valid(phydev)) { + phydev->interrupts = PHY_INTERRUPT_DISABLED; + if (phydev->drv->config_intr) + phydev->drv->config_intr(phydev); + } - mutex_lock(&phydev->lock); + return genphy_suspend(phydev); +} - value = phy_read(phydev, MII_BMCR); - phy_write(phydev, MII_BMCR, value & ~BMCR_PDOWN); +static int kszphy_resume(struct phy_device *phydev) +{ + genphy_resume(phydev); - kszphy_config_intr(phydev); - mutex_unlock(&phydev->lock); + /* Enable PHY Interrupts */ + if (phy_interrupt_is_valid(phydev)) { + phydev->interrupts = PHY_INTERRUPT_ENABLED; + if (phydev->drv->config_intr) + phydev->drv->config_intr(phydev); + } return 0; }
@@ -870,7 +881,7 @@ 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,
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2.7.4