net: phy: add interrupt support for aquantia phy

By implementing config_intr & ack_interrupt, now the phy can support
link connect/disconnect interrupt.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 49 insertions, 0 deletions

diff --git a/drivers/net/phy/aquantia.c b/drivers/net/phy/aquantia.c
index 73d347d7cb04..d6111affbcb6 100644
--- a/drivers/net/phy/aquantia.c
+++ b/drivers/net/phy/aquantia.c
@@ -44,6 +44,43 @@ static int aquantia_aneg_done(struct phy_device *phydev)
         return (reg < 0) ? reg : (reg & BMSR_ANEGCOMPLETE);
 }
 
+static int aquantia_config_intr(struct phy_device *phydev)
+{
+        int err;
+
+        if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+                err = phy_write_mmd(phydev, MDIO_MMD_AN, 0xd401, 1);
+                if (err < 0)
+                        return err;
+
+                err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff00, 1);
+                if (err < 0)
+                        return err;
+
+                err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff01, 0x1001);
+        } else {
+                err = phy_write_mmd(phydev, MDIO_MMD_AN, 0xd401, 0);
+                if (err < 0)
+                        return err;
+
+                err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff00, 0);
+                if (err < 0)
+                        return err;
+
+                err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff01, 0);
+        }
+
+        return err;
+}
+
+static int aquantia_ack_interrupt(struct phy_device *phydev)
+{
+        int reg;
+
+        reg = phy_read_mmd(phydev, MDIO_MMD_AN, 0xcc01);
+        return (reg < 0) ? reg : 0;
+}
+
 static int aquantia_read_status(struct phy_device *phydev)
 {
         int reg;
@@ -85,8 +122,11 @@ static struct phy_driver aquantia_driver[] = {
         .phy_id_mask    = 0xfffffff0,
         .name           = "Aquantia AQ1202",
         .features       = PHY_AQUANTIA_FEATURES,
+        .flags          = PHY_HAS_INTERRUPT,
         .aneg_done      = aquantia_aneg_done,
         .config_aneg    = aquantia_config_aneg,
+        .config_intr    = aquantia_config_intr,
+        .ack_interrupt  = aquantia_ack_interrupt,
         .read_status    = aquantia_read_status,
         .driver         = { .owner = THIS_MODULE,},
 },
@@ -95,8 +135,11 @@ static struct phy_driver aquantia_driver[] = {
         .phy_id_mask    = 0xfffffff0,
         .name           = "Aquantia AQ2104",
         .features       = PHY_AQUANTIA_FEATURES,
+        .flags          = PHY_HAS_INTERRUPT,
         .aneg_done      = aquantia_aneg_done,
         .config_aneg    = aquantia_config_aneg,
+        .config_intr    = aquantia_config_intr,
+        .ack_interrupt  = aquantia_ack_interrupt,
         .read_status    = aquantia_read_status,
         .driver         = { .owner = THIS_MODULE,},
 },
@@ -105,8 +148,11 @@ static struct phy_driver aquantia_driver[] = {
         .phy_id_mask    = 0xfffffff0,
         .name           = "Aquantia AQR105",
         .features       = PHY_AQUANTIA_FEATURES,
+        .flags          = PHY_HAS_INTERRUPT,
         .aneg_done      = aquantia_aneg_done,
         .config_aneg    = aquantia_config_aneg,
+        .config_intr    = aquantia_config_intr,
+        .ack_interrupt  = aquantia_ack_interrupt,
         .read_status    = aquantia_read_status,
         .driver         = { .owner = THIS_MODULE,},
 },
@@ -115,8 +161,11 @@ static struct phy_driver aquantia_driver[] = {
         .phy_id_mask    = 0xfffffff0,
         .name           = "Aquantia AQR405",
         .features       = PHY_AQUANTIA_FEATURES,
+        .flags          = PHY_HAS_INTERRUPT,
         .aneg_done      = aquantia_aneg_done,
         .config_aneg    = aquantia_config_aneg,
+        .config_intr    = aquantia_config_intr,
+        .ack_interrupt  = aquantia_ack_interrupt,
         .read_status    = aquantia_read_status,
         .driver         = { .owner = THIS_MODULE,},
 },