net: phy: nxp-tja11xx: remove the use of .ack_interrupt()

In preparation of removing the .ack_interrupt() callback, we must replace
its occurrences (aka phy_clear_interrupt), from the 2 places where it is
called from (phy_enable_interrupts and phy_disable_interrupts), with
equivalent functionality.

This means that clearing interrupts now becomes something that the PHY
driver is responsible of doing, before enabling interrupts and after
clearing them. Make this driver follow the new contract.

Cc: Marek Vasut <[e-mail]>
Cc: Oleksij Rempel <[e-mail]>
Signed-off-by: Ioana Ciornei <[e-mail]>
Signed-off-by: Jakub Kicinski <[e-mail]>

drivers/net/phy/nxp-tja11xx.c

···
 static int tja11xx_config_intr(struct phy_device *phydev)
 {
 	int value = 0;
+	int err;
 
-	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+		err = tja11xx_ack_interrupt(phydev);
+		if (err)
+			return err;
+
 		value = MII_INTEN_LINK_FAIL | MII_INTEN_LINK_UP;
+		err = phy_write(phydev, MII_INTEN, value);
+	} else {
+		err = phy_write(phydev, MII_INTEN, value);
+		if (err)
+			return err;
 
-	return phy_write(phydev, MII_INTEN, value);
+		err = tja11xx_ack_interrupt(phydev);
+	}
+
+	return err;
 }
 
 static irqreturn_t tja11xx_handle_interrupt(struct phy_device *phydev)
···
 		.get_sset_count = tja11xx_get_sset_count,
 		.get_strings	= tja11xx_get_strings,
 		.get_stats	= tja11xx_get_stats,
-		.ack_interrupt	= tja11xx_ack_interrupt,
 		.config_intr	= tja11xx_config_intr,
 		.handle_interrupt = tja11xx_handle_interrupt,
 		.cable_test_start = tja11xx_cable_test_start,
···
 		.get_sset_count = tja11xx_get_sset_count,
 		.get_strings	= tja11xx_get_strings,
 		.get_stats	= tja11xx_get_stats,
-		.ack_interrupt	= tja11xx_ack_interrupt,
 		.config_intr	= tja11xx_config_intr,
 		.handle_interrupt = tja11xx_handle_interrupt,
 		.cable_test_start = tja11xx_cable_test_start,