[PATCH net-next 13/19] net: phy: cicada: implement the generic .handle_interrupt() callback

[Ioana Ciornei]

From: Ioana Ciornei <ioana.cior...@nxp.com>

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.cior...@nxp.com>
---
 drivers/net/phy/cicada.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/net/phy/cicada.c b/drivers/net/phy/cicada.c
index 9d1612a4d7e6..03b957483023 100644
--- a/drivers/net/phy/cicada.c
+++ b/drivers/net/phy/cicada.c
@@ -96,6 +96,24 @@ static int cis820x_config_intr(struct phy_device *phydev)
        return err;
 }
 
+static irqreturn_t cis820x_handle_interrupt(struct phy_device *phydev)
+{
+       int irq_status;
+
+       irq_status = phy_read(phydev, MII_CIS8201_ISTAT);
+       if (irq_status < 0) {
+               phy_error(phydev);
+               return IRQ_NONE;
+       }
+
+       if (irq_status == 0)
+               return IRQ_NONE;
+
+       phy_trigger_machine(phydev);
+
+       return IRQ_HANDLED;
+}
+
 /* Cicada 8201, a.k.a Vitesse VSC8201 */
 static struct phy_driver cis820x_driver[] = {
 {
@@ -106,6 +124,7 @@ static struct phy_driver cis820x_driver[] = {
        .config_init    = &cis820x_config_init,
        .ack_interrupt  = &cis820x_ack_interrupt,
        .config_intr    = &cis820x_config_intr,
+       .handle_interrupt = &cis820x_handle_interrupt,
 }, {
        .phy_id         = 0x000fc440,
        .name           = "Cicada Cis8204",
@@ -114,6 +133,7 @@ static struct phy_driver cis820x_driver[] = {
        .config_init    = &cis820x_config_init,
        .ack_interrupt  = &cis820x_ack_interrupt,
        .config_intr    = &cis820x_config_intr,
+       .handle_interrupt = &cis820x_handle_interrupt,
 } };
 
 module_phy_driver(cis820x_driver);
-- 
2.28.0