diff options
Diffstat (limited to 'drivers/net/phy/bcm-phy-lib.c')
| -rw-r--r-- | drivers/net/phy/bcm-phy-lib.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/net/phy/bcm-phy-lib.c b/drivers/net/phy/bcm-phy-lib.c index ef6825b30323..c232fcfe0e20 100644 --- a/drivers/net/phy/bcm-phy-lib.c +++ b/drivers/net/phy/bcm-phy-lib.c @@ -196,6 +196,37 @@ int bcm_phy_config_intr(struct phy_device *phydev) } EXPORT_SYMBOL_GPL(bcm_phy_config_intr); +irqreturn_t bcm_phy_handle_interrupt(struct phy_device *phydev) +{ + int irq_status, irq_mask; + + irq_status = phy_read(phydev, MII_BCM54XX_ISR); + if (irq_status < 0) { + phy_error(phydev); + return IRQ_NONE; + } + + /* If a bit from the Interrupt Mask register is set, the corresponding + * bit from the Interrupt Status register is masked. So read the IMR + * and then flip the bits to get the list of possible interrupt + * sources. + */ + irq_mask = phy_read(phydev, MII_BCM54XX_IMR); + if (irq_mask < 0) { + phy_error(phydev); + return IRQ_NONE; + } + irq_mask = ~irq_mask; + + if (!(irq_status & irq_mask)) + return IRQ_NONE; + + phy_trigger_machine(phydev); + + return IRQ_HANDLED; +} +EXPORT_SYMBOL_GPL(bcm_phy_handle_interrupt); + int bcm_phy_read_shadow(struct phy_device *phydev, u16 shadow) { phy_write(phydev, MII_BCM54XX_SHD, MII_BCM54XX_SHD_VAL(shadow)); |