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Date: Sun, 1 Nov 2020 14:51:02 +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>
Subject: [PATCH net-next v2 07/19] net: phy: mscc: implement generic .handle_interrupt() callback
From: Ioana Ciornei <ioana.ciornei@....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@....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(-)
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,
--
2.28.0
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