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net: phy: meson-gxl: fix interrupt support

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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: cf127ff20a ("net: phy: meson-gxl: add interrupt support")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jerome Brunet 2019-03-14 14:49:45 +01:00 committed by David S. Miller
parent 8a3c245c03
commit daa5c4d016
1 changed files with 6 additions and 0 deletions
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6
drivers/net/phy/meson-gxl.c
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@ -201,6 +201,7 @@ 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
@ -213,6 +214,11 @@ 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);
}