From a6f0168e668169768cb076ed6ecc4891855aaebd Mon Sep 17 00:00:00 2001 From: Jerome Brunet Date: Thu, 14 Mar 2019 14:49:45 +0100 Subject: [PATCH] net: phy: meson-gxl: fix interrupt support [ Upstream commit daa5c4d0167a308306525fd5ab9a5e18e21f4f74 ] If an interrupt is already pending when the interrupt is enabled on the GXL phy, no IRQ will ever be triggered. The fix is simply to make sure pending IRQs are cleared before setting up the irq mask. Fixes: cf127ff20af1 ("net: phy: meson-gxl: add interrupt support") Signed-off-by: Jerome Brunet Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/phy/meson-gxl.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/phy/meson-gxl.c b/drivers/net/phy/meson-gxl.c index ddc2c5ea3787..7ceebbc4bcc2 100644 --- a/drivers/net/phy/meson-gxl.c +++ b/drivers/net/phy/meson-gxl.c @@ -211,6 +211,7 @@ static int meson_gxl_ack_interrupt(struct phy_device *phydev) static int meson_gxl_config_intr(struct phy_device *phydev) { u16 val; + int ret; if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { val = INTSRC_ANEG_PR @@ -223,6 +224,11 @@ static int meson_gxl_config_intr(struct phy_device *phydev) val = 0; } + /* Ack any pending IRQ */ + ret = meson_gxl_ack_interrupt(phydev); + if (ret) + return ret; + return phy_write(phydev, INTSRC_MASK, val); } -- GitLab