netdev - [PATCH net-next 16/19] net: phy: davicom: remove the use of .ack

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Message-Id: <20201029100741.462818-17-ciorneiioana@gmail.com>
Date:   Thu, 29 Oct 2020 12:07:38 +0200
From:   Ioana Ciornei <ciorneiioana@...il.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Ioana Ciornei <ioana.ciornei@....com>
Subject: [PATCH net-next 16/19] net: phy: davicom: remove the use of .ack_interrupt()

From: Ioana Ciornei <ioana.ciornei@....com>

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.

Signed-off-by: Ioana Ciornei <ioana.ciornei@....com>
---
 drivers/net/phy/davicom.c | 37 +++++++++++++++++++++----------------
 1 file changed, 21 insertions(+), 16 deletions(-)

diff --git a/drivers/net/phy/davicom.c b/drivers/net/phy/davicom.c
index 262ff6c79860..a5a2468732c2 100644
--- a/drivers/net/phy/davicom.c
+++ b/drivers/net/phy/davicom.c
@@ -57,24 +57,40 @@ MODULE_AUTHOR("Andy Fleming");
 MODULE_LICENSE("GPL");
 
 
+static int dm9161_ack_interrupt(struct phy_device *phydev)
+{
+	int err = phy_read(phydev, MII_DM9161_INTR);
+
+	return (err < 0) ? err : 0;
+}
+
 #define DM9161_DELAY 1
 static int dm9161_config_intr(struct phy_device *phydev)
 {
-	int temp;
+	int temp, err;
 
 	temp = phy_read(phydev, MII_DM9161_INTR);
 
 	if (temp < 0)
 		return temp;
 
-	if (PHY_INTERRUPT_ENABLED == phydev->interrupts)
+	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+		err = dm9161_ack_interrupt(phydev);
+		if (err)
+			return err;
+
 		temp &= ~(MII_DM9161_INTR_STOP);
-	else
+		err = phy_write(phydev, MII_DM9161_INTR, temp);
+	} else {
 		temp |= MII_DM9161_INTR_STOP;
+		err = phy_write(phydev, MII_DM9161_INTR, temp);
+		if (err)
+			return err;
 
-	temp = phy_write(phydev, MII_DM9161_INTR, temp);
+		err = dm9161_ack_interrupt(phydev);
+	}
 
-	return temp;
+	return err;
 }
 
 static irqreturn_t dm9161_handle_interrupt(struct phy_device *phydev)
@@ -150,13 +166,6 @@ static int dm9161_config_init(struct phy_device *phydev)
 	return phy_write(phydev, MII_BMCR, BMCR_ANENABLE);
 }
 
-static int dm9161_ack_interrupt(struct phy_device *phydev)
-{
-	int err = phy_read(phydev, MII_DM9161_INTR);
-
-	return (err < 0) ? err : 0;
-}
-
 static struct phy_driver dm91xx_driver[] = {
 {
 	.phy_id		= 0x0181b880,
@@ -165,7 +174,6 @@ static struct phy_driver dm91xx_driver[] = {
 	/* PHY_BASIC_FEATURES */
 	.config_init	= dm9161_config_init,
 	.config_aneg	= dm9161_config_aneg,
-	.ack_interrupt	= dm9161_ack_interrupt,
 	.config_intr	= dm9161_config_intr,
 	.handle_interrupt = dm9161_handle_interrupt,
 }, {
@@ -175,7 +183,6 @@ static struct phy_driver dm91xx_driver[] = {
 	/* PHY_BASIC_FEATURES */
 	.config_init	= dm9161_config_init,
 	.config_aneg	= dm9161_config_aneg,
-	.ack_interrupt	= dm9161_ack_interrupt,
 	.config_intr	= dm9161_config_intr,
 	.handle_interrupt = dm9161_handle_interrupt,
 }, {
@@ -185,7 +192,6 @@ static struct phy_driver dm91xx_driver[] = {
 	/* PHY_BASIC_FEATURES */
 	.config_init	= dm9161_config_init,
 	.config_aneg	= dm9161_config_aneg,
-	.ack_interrupt	= dm9161_ack_interrupt,
 	.config_intr	= dm9161_config_intr,
 	.handle_interrupt = dm9161_handle_interrupt,
 }, {
@@ -193,7 +199,6 @@ static struct phy_driver dm91xx_driver[] = {
 	.name		= "Davicom DM9131",
 	.phy_id_mask	= 0x0ffffff0,
 	/* PHY_BASIC_FEATURES */
-	.ack_interrupt	= dm9161_ack_interrupt,
 	.config_intr	= dm9161_config_intr,
 	.handle_interrupt = dm9161_handle_interrupt,
 } };
-- 
2.28.0