Add support for handling the TJA11xx PHY IRQ signal.
Signed-off-by: Marek Vasut <marex@xxxxxxx>
Cc: Andrew Lunn <andrew@xxxxxxx>
Cc: Florian Fainelli <f.fainelli@xxxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Cc: Heiner Kallweit <hkallweit1@xxxxxxxxx>
Cc: Jean Delvare <jdelvare@xxxxxxxx>
Cc: linux-hwmon@xxxxxxxxxxxxxxx
---
drivers/net/phy/nxp-tja11xx.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/drivers/net/phy/nxp-tja11xx.c b/drivers/net/phy/nxp-tja11xx.c
index b705d0bd798b..0be9fe9a9604 100644
--- a/drivers/net/phy/nxp-tja11xx.c
+++ b/drivers/net/phy/nxp-tja11xx.c
@@ -40,6 +40,8 @@
#define MII_INTSRC_TEMP_ERR BIT(1)
#define MII_INTSRC_UV_ERR BIT(3)
+#define MII_INTEN 22
+
#define MII_COMMSTAT 23
#define MII_COMMSTAT_LINK_UP BIT(15)
@@ -239,6 +241,30 @@ static int tja11xx_read_status(struct phy_device *phydev)
return 0;
}
+static int tja11xx_config_intr(struct phy_device *phydev)
+{
+ int ret;
+
+ if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+ ret = phy_write(phydev, MII_INTEN, 0xcfef);
+ else
+ ret = phy_write(phydev, MII_INTEN, 0);
+
+ if (ret < 0)
+ return ret;
+
+ ret = phy_read(phydev, MII_INTSRC);
+
+ return ret < 0 ? ret : 0;
+}
+
+static int tja11xx_ack_interrupt(struct phy_device *phydev)
+{
+ int ret = phy_read(phydev, MII_INTSRC);
+
+ return ret < 0 ? ret : 0;
+}
+
static int tja11xx_get_sset_count(struct phy_device *phydev)
{
return ARRAY_SIZE(tja11xx_hw_stats);
@@ -366,6 +392,9 @@ static struct phy_driver tja11xx_driver[] = {
.suspend = genphy_suspend,
.resume = genphy_resume,
.set_loopback = genphy_loopback,
+ /* IRQ related */
+ .config_intr = tja11xx_config_intr,
+ .ack_interrupt = tja11xx_ack_interrupt,
/* Statistics */
.get_sset_count = tja11xx_get_sset_count,
.get_strings = tja11xx_get_strings,
@@ -381,6 +410,9 @@ static struct phy_driver tja11xx_driver[] = {
.suspend = genphy_suspend,
.resume = genphy_resume,
.set_loopback = genphy_loopback,
+ /* IRQ related */
+ .config_intr = tja11xx_config_intr,
+ .ack_interrupt = tja11xx_ack_interrupt,
/* Statistics */
.get_sset_count = tja11xx_get_sset_count,
.get_strings = tja11xx_get_strings,
--
2.20.1
