diff mbox series

[net-next,v2,07/19] net: phy: mscc: implement generic .handle_interrupt() callback

Message ID 20201101125114.1316879-8-ciorneiioana@gmail.com (mailing list archive)
State Not Applicable
Delegated to: Netdev Maintainers
Headers show
Series net: phy: add support for shared interrupts (part 1) | expand

Commit Message

Ioana Ciornei Nov. 1, 2020, 12:51 p.m. UTC 
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.

Also, remove the .did_interrupt() callback since it's not anymore used.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
---
Changes in v2:
 - adjust .handle_interrupt() so that we only take into account the
   enabled IRQs.

 drivers/net/phy/mscc/mscc_main.c | 56 ++++++++++++++++----------------
 1 file changed, 28 insertions(+), 28 deletions(-)

Comments

Vladimir Oltean Nov. 5, 2020, 12:08 a.m. UTC | #1 
On Sun, Nov 01, 2020 at 02:51:02PM +0200, Ioana Ciornei wrote:
> 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.
> 
> Also, remove the .did_interrupt() callback since it's not anymore used.
> 
> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
> ---

Tested-by: Vladimir Oltean <olteanv@gmail.com> # VSC8514
diff mbox series

Patch

diff --git a/drivers/net/phy/mscc/mscc_main.c b/drivers/net/phy/mscc/mscc_main.c
index b705121c9d26..48883730bf6f 100644
--- a/drivers/net/phy/mscc/mscc_main.c
+++ b/drivers/net/phy/mscc/mscc_main.c
@@ -1541,16 +1541,6 @@  static int vsc85xx_config_init(struct phy_device *phydev)
 	return 0;
 }
 
-static int vsc8584_did_interrupt(struct phy_device *phydev)
-{
-	int rc = 0;
-
-	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
-		rc = phy_read(phydev, MII_VSC85XX_INT_STATUS);
-
-	return (rc < 0) ? 0 : rc & MII_VSC85XX_INT_MASK_MASK;
-}
-
 static int vsc8514_config_pre_init(struct phy_device *phydev)
 {
 	/* These are the settings to override the silicon default
@@ -1948,6 +1938,24 @@  static int vsc85xx_config_intr(struct phy_device *phydev)
 	return rc;
 }
 
+static irqreturn_t vsc85xx_handle_interrupt(struct phy_device *phydev)
+{
+	int irq_status;
+
+	irq_status = phy_read(phydev, MII_VSC85XX_INT_STATUS);
+	if (irq_status < 0) {
+		phy_error(phydev);
+		return IRQ_NONE;
+	}
+
+	if (!(irq_status & MII_VSC85XX_INT_MASK_MASK))
+		return IRQ_NONE;
+
+	phy_trigger_machine(phydev);
+
+	return IRQ_HANDLED;
+}
+
 static int vsc85xx_config_aneg(struct phy_device *phydev)
 {
 	int rc;
@@ -2114,7 +2122,7 @@  static struct phy_driver vsc85xx_driver[] = {
 	.config_init	= &vsc85xx_config_init,
 	.config_aneg    = &vsc85xx_config_aneg,
 	.read_status	= &vsc85xx_read_status,
-	.ack_interrupt	= &vsc85xx_ack_interrupt,
+	.handle_interrupt = vsc85xx_handle_interrupt,
 	.config_intr	= &vsc85xx_config_intr,
 	.suspend	= &genphy_suspend,
 	.resume		= &genphy_resume,
@@ -2139,9 +2147,8 @@  static struct phy_driver vsc85xx_driver[] = {
 	.config_aneg    = &vsc85xx_config_aneg,
 	.aneg_done	= &genphy_aneg_done,
 	.read_status	= &vsc85xx_read_status,
-	.ack_interrupt  = &vsc85xx_ack_interrupt,
+	.handle_interrupt = vsc85xx_handle_interrupt,
 	.config_intr    = &vsc85xx_config_intr,
-	.did_interrupt  = &vsc8584_did_interrupt,
 	.suspend	= &genphy_suspend,
 	.resume		= &genphy_resume,
 	.probe		= &vsc8574_probe,
@@ -2163,7 +2170,7 @@  static struct phy_driver vsc85xx_driver[] = {
 	.config_init    = &vsc8514_config_init,
 	.config_aneg    = &vsc85xx_config_aneg,
 	.read_status	= &vsc85xx_read_status,
-	.ack_interrupt  = &vsc85xx_ack_interrupt,
+	.handle_interrupt = vsc85xx_handle_interrupt,
 	.config_intr    = &vsc85xx_config_intr,
 	.suspend	= &genphy_suspend,
 	.resume		= &genphy_resume,
@@ -2187,7 +2194,7 @@  static struct phy_driver vsc85xx_driver[] = {
 	.config_init	= &vsc85xx_config_init,
 	.config_aneg    = &vsc85xx_config_aneg,
 	.read_status	= &vsc85xx_read_status,
-	.ack_interrupt	= &vsc85xx_ack_interrupt,
+	.handle_interrupt = vsc85xx_handle_interrupt,
 	.config_intr	= &vsc85xx_config_intr,
 	.suspend	= &genphy_suspend,
 	.resume		= &genphy_resume,
@@ -2211,7 +2218,7 @@  static struct phy_driver vsc85xx_driver[] = {
 	.config_init    = &vsc85xx_config_init,
 	.config_aneg    = &vsc85xx_config_aneg,
 	.read_status	= &vsc85xx_read_status,
-	.ack_interrupt  = &vsc85xx_ack_interrupt,
+	.handle_interrupt = vsc85xx_handle_interrupt,
 	.config_intr    = &vsc85xx_config_intr,
 	.suspend	= &genphy_suspend,
 	.resume		= &genphy_resume,
@@ -2235,7 +2242,7 @@  static struct phy_driver vsc85xx_driver[] = {
 	.config_init	= &vsc85xx_config_init,
 	.config_aneg	= &vsc85xx_config_aneg,
 	.read_status	= &vsc85xx_read_status,
-	.ack_interrupt	= &vsc85xx_ack_interrupt,
+	.handle_interrupt = vsc85xx_handle_interrupt,
 	.config_intr	= &vsc85xx_config_intr,
 	.suspend	= &genphy_suspend,
 	.resume		= &genphy_resume,
@@ -2259,7 +2266,7 @@  static struct phy_driver vsc85xx_driver[] = {
 	.config_init    = &vsc85xx_config_init,
 	.config_aneg    = &vsc85xx_config_aneg,
 	.read_status	= &vsc85xx_read_status,
-	.ack_interrupt  = &vsc85xx_ack_interrupt,
+	.handle_interrupt = vsc85xx_handle_interrupt,
 	.config_intr    = &vsc85xx_config_intr,
 	.suspend	= &genphy_suspend,
 	.resume		= &genphy_resume,
@@ -2283,9 +2290,8 @@  static struct phy_driver vsc85xx_driver[] = {
 	.config_init    = &vsc8584_config_init,
 	.config_aneg    = &vsc85xx_config_aneg,
 	.read_status	= &vsc85xx_read_status,
-	.ack_interrupt  = &vsc85xx_ack_interrupt,
+	.handle_interrupt = vsc85xx_handle_interrupt,
 	.config_intr    = &vsc85xx_config_intr,
-	.did_interrupt  = &vsc8584_did_interrupt,
 	.suspend	= &genphy_suspend,
 	.resume		= &genphy_resume,
 	.probe		= &vsc8574_probe,
@@ -2308,9 +2314,8 @@  static struct phy_driver vsc85xx_driver[] = {
 	.config_init    = &vsc8584_config_init,
 	.config_aneg    = &vsc85xx_config_aneg,
 	.read_status	= &vsc85xx_read_status,
-	.ack_interrupt  = &vsc85xx_ack_interrupt,
+	.handle_interrupt = vsc85xx_handle_interrupt,
 	.config_intr    = &vsc85xx_config_intr,
-	.did_interrupt  = &vsc8584_did_interrupt,
 	.suspend	= &genphy_suspend,
 	.resume		= &genphy_resume,
 	.probe		= &vsc8584_probe,
@@ -2335,7 +2340,6 @@  static struct phy_driver vsc85xx_driver[] = {
 	.handle_interrupt = &vsc8584_handle_interrupt,
 	.ack_interrupt  = &vsc85xx_ack_interrupt,
 	.config_intr    = &vsc85xx_config_intr,
-	.did_interrupt  = &vsc8584_did_interrupt,
 	.suspend	= &genphy_suspend,
 	.resume		= &genphy_resume,
 	.probe		= &vsc8574_probe,
@@ -2359,9 +2363,8 @@  static struct phy_driver vsc85xx_driver[] = {
 	.config_aneg    = &vsc85xx_config_aneg,
 	.aneg_done	= &genphy_aneg_done,
 	.read_status	= &vsc85xx_read_status,
-	.ack_interrupt  = &vsc85xx_ack_interrupt,
+	.handle_interrupt = vsc85xx_handle_interrupt,
 	.config_intr    = &vsc85xx_config_intr,
-	.did_interrupt  = &vsc8584_did_interrupt,
 	.suspend	= &genphy_suspend,
 	.resume		= &genphy_resume,
 	.probe		= &vsc8574_probe,
@@ -2388,7 +2391,6 @@  static struct phy_driver vsc85xx_driver[] = {
 	.handle_interrupt = &vsc8584_handle_interrupt,
 	.ack_interrupt  = &vsc85xx_ack_interrupt,
 	.config_intr    = &vsc85xx_config_intr,
-	.did_interrupt  = &vsc8584_did_interrupt,
 	.suspend	= &genphy_suspend,
 	.resume		= &genphy_resume,
 	.probe		= &vsc8584_probe,
@@ -2413,7 +2415,6 @@  static struct phy_driver vsc85xx_driver[] = {
 	.handle_interrupt = &vsc8584_handle_interrupt,
 	.ack_interrupt  = &vsc85xx_ack_interrupt,
 	.config_intr    = &vsc85xx_config_intr,
-	.did_interrupt  = &vsc8584_did_interrupt,
 	.suspend	= &genphy_suspend,
 	.resume		= &genphy_resume,
 	.probe		= &vsc8584_probe,
@@ -2438,7 +2439,6 @@  static struct phy_driver vsc85xx_driver[] = {
 	.handle_interrupt = &vsc8584_handle_interrupt,
 	.ack_interrupt  = &vsc85xx_ack_interrupt,
 	.config_intr    = &vsc85xx_config_intr,
-	.did_interrupt  = &vsc8584_did_interrupt,
 	.suspend	= &genphy_suspend,
 	.resume		= &genphy_resume,
 	.probe		= &vsc8584_probe,