net: phy: davicom: implement generic .handle_interrupt() calback

In an attempt to actually support shared IRQs in phylib, we now move the
responsibility of triggering the phylib state machine or just returning
IRQ_NONE, based on the IRQ status register, to the PHY driver. Having
3 different IRQ handling callbacks (.handle_interrupt(),
.did_interrupt() and .ack_interrupt() ) is confusing so let the PHY
driver implement directly an IRQ handler like any other device driver.
Make this driver follow the new convention.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/phy/davicom.c b/drivers/net/phy/davicom.c
index 942f277463a4d4776f3a954eca782a00e71c52be..bfa6c835070fffd0963f763d02d6aeb0d2be57f7 100644 (file)
--- a/drivers/net/phy/davicom.c
+++ b/drivers/net/phy/davicom.c
@@ -47,6 +47,10 @@
 #define MII_DM9161_INTR_STOP   \
 (MII_DM9161_INTR_DPLX_MASK | MII_DM9161_INTR_SPD_MASK \
  | MII_DM9161_INTR_LINK_MASK | MII_DM9161_INTR_MASK)
+#define MII_DM9161_INTR_CHANGE \
+       (MII_DM9161_INTR_DPLX_CHANGE | \
+        MII_DM9161_INTR_SPD_CHANGE | \
+        MII_DM9161_INTR_LINK_CHANGE)
 
 /* DM9161 10BT Configuration/Status */
 #define MII_DM9161_10BTCSR     0x12
@@ -77,6 +81,24 @@ static int dm9161_config_intr(struct phy_device *phydev)
        return temp;
 }
 
+static irqreturn_t dm9161_handle_interrupt(struct phy_device *phydev)
+{
+       int irq_status;
+
+       irq_status = phy_read(phydev, MII_DM9161_INTR);
+       if (irq_status < 0) {
+               phy_error(phydev);
+               return IRQ_NONE;
+       }
+
+       if (!(irq_status & MII_DM9161_INTR_CHANGE))
+               return IRQ_NONE;
+
+       phy_trigger_machine(phydev);
+
+       return IRQ_HANDLED;
+}
+
 static int dm9161_config_aneg(struct phy_device *phydev)
 {
        int err;
@@ -149,6 +171,7 @@ static struct phy_driver dm91xx_driver[] = {
        .config_aneg    = dm9161_config_aneg,
        .ack_interrupt  = dm9161_ack_interrupt,
        .config_intr    = dm9161_config_intr,
+       .handle_interrupt = dm9161_handle_interrupt,
 }, {
        .phy_id         = 0x0181b8b0,
        .name           = "Davicom DM9161B/C",
@@ -158,6 +181,7 @@ static struct phy_driver dm91xx_driver[] = {
        .config_aneg    = dm9161_config_aneg,
        .ack_interrupt  = dm9161_ack_interrupt,
        .config_intr    = dm9161_config_intr,
+       .handle_interrupt = dm9161_handle_interrupt,
 }, {
        .phy_id         = 0x0181b8a0,
        .name           = "Davicom DM9161A",
@@ -167,6 +191,7 @@ static struct phy_driver dm91xx_driver[] = {
        .config_aneg    = dm9161_config_aneg,
        .ack_interrupt  = dm9161_ack_interrupt,
        .config_intr    = dm9161_config_intr,
+       .handle_interrupt = dm9161_handle_interrupt,
 }, {
        .phy_id         = 0x00181b80,
        .name           = "Davicom DM9131",
@@ -174,6 +199,7 @@ static struct phy_driver dm91xx_driver[] = {
        /* PHY_BASIC_FEATURES */
        .ack_interrupt  = dm9161_ack_interrupt,
        .config_intr    = dm9161_config_intr,
+       .handle_interrupt = dm9161_handle_interrupt,
 } };
 
 module_phy_driver(dm91xx_driver);