net: phy: Use threaded IRQ, to allow IRQ from sleeping devices

The interrupt lines from PHYs maybe connected to I2C bus expanders, or from switches on MDIO busses. Such interrupts are sourced from devices which sleep, so use threaded interrupts. Threaded interrupts require that the interrupt requester also uses the threaded API. Change the phylib to use the threaded API, which is backwards compatible with none-threaded IRQs. Signed-off-by: Andrew Lunn <[email protected]> Signed-off-by: David S. Miller <[email protected]>
nathanchance · Oct 17, 2016 · c974bdb · c974bdb
1 parent dc30c35
commit c974bdb
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
@@ -739,10 +739,10 @@ static int phy_disable_interrupts(struct phy_device *phydev)
 int phy_start_interrupts(struct phy_device *phydev)
 {
 	atomic_set(&phydev->irq_disable, 0);
-	if (request_irq(phydev->irq, phy_interrupt,
-				IRQF_SHARED,
-				"phy_interrupt",
-				phydev) < 0) {
+	if (request_threaded_irq(phydev->irq, NULL, phy_interrupt,
+				 IRQF_ONESHOT | IRQF_SHARED,
+				 "phy_interrupt",
+				 phydev) < 0) {
 		pr_warn("%s: Can't get IRQ %d (PHY)\n",
 			phydev->mdio.bus->name, phydev->irq);
 		phydev->irq = PHY_POLL;