--- a/drivers/net/phy/realtek.c +++ b/drivers/net/phy/realtek.c @@ -979,6 +979,51 @@ static int rtl8221b_config_init(struct p return 0; } +static int rtl8221b_ack_interrupt(struct phy_device *phydev) +{ + int err; + + err = phy_read_mmd(phydev, RTL8221B_MMD_PHY_CTRL, 0xa4d4); + + return (err < 0) ? err : 0; +} + +static int rtl8221b_config_intr(struct phy_device *phydev) +{ + int err; + + if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { + err = rtl8221b_ack_interrupt(phydev); + if (err) + return err; + + err = phy_write_mmd(phydev, RTL8221B_MMD_PHY_CTRL, 0xa4d2, 0x7ff); + } else { + err = phy_write_mmd(phydev, RTL8221B_MMD_PHY_CTRL, 0xa4d2, 0x0); + if (err) + return err; + + err = rtl8221b_ack_interrupt(phydev); + } + + return err; +} + +static irqreturn_t rtl8221b_handle_interrupt(struct phy_device *phydev) +{ + int err; + + err = rtl8221b_ack_interrupt(phydev); + if (err) { + phy_error(phydev); + return IRQ_NONE; + } + + phy_trigger_machine(phydev); + + return IRQ_HANDLED; +} + static struct phy_driver realtek_drvs[] = { { PHY_ID_MATCH_EXACT(0x00008201), @@ -1139,6 +1184,8 @@ static struct phy_driver realtek_drvs[] .get_features = rtl822x_get_features, .config_init = rtl8221b_config_init, .config_aneg = rtl822x_config_aneg, + .config_intr = rtl8221b_config_intr, + .handle_interrupt = rtl8221b_handle_interrupt, .probe = rtl822x_probe, .read_status = rtl822x_read_status, .suspend = genphy_suspend,