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Subject[PATCH net-next 09/15] net: phy: national: implement generic .handle_interrupt() callback
Date
From: Ioana Ciornei <ioana.ciornei@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.ciornei@nxp.com>
---
drivers/net/phy/national.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)

diff --git a/drivers/net/phy/national.c b/drivers/net/phy/national.c
index a5bf0874c7d8..8c71fd66b0b1 100644
--- a/drivers/net/phy/national.c
+++ b/drivers/net/phy/national.c
@@ -89,6 +89,27 @@ static int ns_ack_interrupt(struct phy_device *phydev)
return ret;
}

+static irqreturn_t ns_handle_interrupt(struct phy_device *phydev)
+{
+ int irq_status;
+
+ irq_status = phy_read(phydev, DP83865_INT_STATUS);
+ if (irq_status < 0) {
+ phy_error(phydev);
+ return IRQ_NONE;
+ }
+
+ if (!(irq_status & DP83865_INT_MASK_DEFAULT))
+ return IRQ_NONE;
+
+ /* clear the interrupt */
+ phy_write(phydev, DP83865_INT_CLEAR, irq_status & ~0x7);
+
+ phy_trigger_machine(phydev);
+
+ return IRQ_HANDLED;
+}
+
static void ns_giga_speed_fallback(struct phy_device *phydev, int mode)
{
int bmcr = phy_read(phydev, MII_BMCR);
@@ -135,6 +156,7 @@ static struct phy_driver dp83865_driver[] = { {
.config_init = ns_config_init,
.ack_interrupt = ns_ack_interrupt,
.config_intr = ns_config_intr,
+ .handle_interrupt = ns_handle_interrupt,
} };

module_phy_driver(dp83865_driver);
--
2.28.0
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