netdev - [PATCH net-next 02/18] net: phy: vitesse: remove the use of .ack

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Message-Id: <20201112155513.411604-3-ciorneiioana@gmail.com>
Date:   Thu, 12 Nov 2020 17:54:57 +0200
From:   Ioana Ciornei <ciorneiioana@...il.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Florian Fainelli <f.fainelli@...il.com>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Ioana Ciornei <ioana.ciornei@....com>,
        Kavya Sree Kotagiri <kavyasree.kotagiri@...rochip.com>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH net-next 02/18] net: phy: vitesse: 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.

Cc: Kavya Sree Kotagiri <kavyasree.kotagiri@...rochip.com>
Cc: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Ioana Ciornei <ioana.ciornei@....com>
---
 drivers/net/phy/vitesse.c | 24 +++---------------------
 1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c
index 9f6cd6ec9747..16704e243162 100644
--- a/drivers/net/phy/vitesse.c
+++ b/drivers/net/phy/vitesse.c
@@ -275,25 +275,14 @@ static int vsc8601_config_init(struct phy_device *phydev)
 	return 0;
 }
 
-static int vsc824x_ack_interrupt(struct phy_device *phydev)
-{
-	int err = 0;
-
-	/* Don't bother to ACK the interrupts if interrupts
-	 * are disabled.  The 824x cannot clear the interrupts
-	 * if they are disabled.
-	 */
-	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
-		err = phy_read(phydev, MII_VSC8244_ISTAT);
-
-	return (err < 0) ? err : 0;
-}
-
 static int vsc82xx_config_intr(struct phy_device *phydev)
 {
 	int err;
 
 	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+		/* Don't bother to ACK the interrupts since the 824x cannot
+		 * clear the interrupts if they are disabled.
+		 */
 		err = phy_write(phydev, MII_VSC8244_IMASK,
 			(phydev->drv->phy_id == PHY_ID_VSC8234 ||
 			 phydev->drv->phy_id == PHY_ID_VSC8244 ||
@@ -420,7 +409,6 @@ static struct phy_driver vsc82xx_driver[] = {
 	/* PHY_GBIT_FEATURES */
 	.config_init    = &vsc824x_config_init,
 	.config_aneg    = &vsc82x4_config_aneg,
-	.ack_interrupt  = &vsc824x_ack_interrupt,
 	.config_intr    = &vsc82xx_config_intr,
 	.handle_interrupt = &vsc82xx_handle_interrupt,
 }, {
@@ -430,7 +418,6 @@ static struct phy_driver vsc82xx_driver[] = {
 	/* PHY_GBIT_FEATURES */
 	.config_init	= &vsc824x_config_init,
 	.config_aneg	= &vsc82x4_config_aneg,
-	.ack_interrupt	= &vsc824x_ack_interrupt,
 	.config_intr	= &vsc82xx_config_intr,
 	.handle_interrupt = &vsc82xx_handle_interrupt,
 }, {
@@ -440,7 +427,6 @@ static struct phy_driver vsc82xx_driver[] = {
 	/* PHY_GBIT_FEATURES */
 	.config_init    = &vsc824x_config_init,
 	.config_aneg    = &vsc82x4_config_aneg,
-	.ack_interrupt  = &vsc824x_ack_interrupt,
 	.config_intr    = &vsc82xx_config_intr,
 	.handle_interrupt = &vsc82xx_handle_interrupt,
 }, {
@@ -449,7 +435,6 @@ static struct phy_driver vsc82xx_driver[] = {
 	.phy_id_mask    = 0x000ffff0,
 	/* PHY_GBIT_FEATURES */
 	.config_init    = &vsc8601_config_init,
-	.ack_interrupt  = &vsc824x_ack_interrupt,
 	.config_intr    = &vsc82xx_config_intr,
 	.handle_interrupt = &vsc82xx_handle_interrupt,
 }, {
@@ -495,7 +480,6 @@ static struct phy_driver vsc82xx_driver[] = {
 	/* PHY_GBIT_FEATURES */
 	.config_init    = &vsc824x_config_init,
 	.config_aneg    = &vsc82x4_config_aneg,
-	.ack_interrupt  = &vsc824x_ack_interrupt,
 	.config_intr    = &vsc82xx_config_intr,
 	.handle_interrupt = &vsc82xx_handle_interrupt,
 }, {
@@ -505,7 +489,6 @@ static struct phy_driver vsc82xx_driver[] = {
 	.name		= "Vitesse VSC8221",
 	/* PHY_GBIT_FEATURES */
 	.config_init	= &vsc8221_config_init,
-	.ack_interrupt	= &vsc824x_ack_interrupt,
 	.config_intr	= &vsc82xx_config_intr,
 	.handle_interrupt = &vsc82xx_handle_interrupt,
 }, {
@@ -515,7 +498,6 @@ static struct phy_driver vsc82xx_driver[] = {
 	.name		= "Vitesse VSC8211",
 	/* PHY_GBIT_FEATURES */
 	.config_init	= &vsc8221_config_init,
-	.ack_interrupt	= &vsc824x_ack_interrupt,
 	.config_intr	= &vsc82xx_config_intr,
 	.handle_interrupt = &vsc82xx_handle_interrupt,
 } };
-- 
2.28.0