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authorIoana Ciornei <ioana.ciornei@nxp.com>2020-11-23 17:38:09 +0200
committerJakub Kicinski <kuba@kernel.org>2020-11-25 11:18:37 -0800
commit59ca4e58b9176989b11b1311c903b3a05e6b87a1 (patch)
tree84e36204b7e3c4b5d45da5471296a56d123ee7c7
parent84c8f773d2dc17193aba2e707338f6e107fb71e5 (diff)
net: phy: micrel: implement generic .handle_interrupt() callback
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. Cc: Divya Koppera <Divya.Koppera@microchip.com> Cc: Oleksij Rempel <o.rempel@pengutronix.de> Cc: Philippe Schenker <philippe.schenker@toradex.com> Cc: Marek Vasut <marex@denx.de> Cc: Antoine Tenart <atenart@kernel.org> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/net/phy/micrel.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index a7f74b3b97af..9aa96ebd31c8 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -48,6 +48,10 @@
#define KSZPHY_INTCS_LINK_UP BIT(8)
#define KSZPHY_INTCS_ALL (KSZPHY_INTCS_LINK_UP |\
KSZPHY_INTCS_LINK_DOWN)
+#define KSZPHY_INTCS_LINK_DOWN_STATUS BIT(2)
+#define KSZPHY_INTCS_LINK_UP_STATUS BIT(0)
+#define KSZPHY_INTCS_STATUS (KSZPHY_INTCS_LINK_DOWN_STATUS |\
+ KSZPHY_INTCS_LINK_UP_STATUS)
/* PHY Control 1 */
#define MII_KSZPHY_CTRL_1 0x1e
@@ -182,6 +186,24 @@ static int kszphy_config_intr(struct phy_device *phydev)
return phy_write(phydev, MII_KSZPHY_INTCS, temp);
}
+static irqreturn_t kszphy_handle_interrupt(struct phy_device *phydev)
+{
+ int irq_status;
+
+ irq_status = phy_read(phydev, MII_KSZPHY_INTCS);
+ if (irq_status < 0) {
+ phy_error(phydev);
+ return IRQ_NONE;
+ }
+
+ if ((irq_status & KSZPHY_INTCS_STATUS))
+ return IRQ_NONE;
+
+ phy_trigger_machine(phydev);
+
+ return IRQ_HANDLED;
+}
+
static int kszphy_rmii_clk_sel(struct phy_device *phydev, bool val)
{
int ctrl;
@@ -1162,6 +1184,7 @@ static struct phy_driver ksphy_driver[] = {
.config_init = kszphy_config_init,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
+ .handle_interrupt = kszphy_handle_interrupt,
.suspend = genphy_suspend,
.resume = genphy_resume,
}, {
@@ -1174,6 +1197,7 @@ static struct phy_driver ksphy_driver[] = {
.config_init = kszphy_config_init,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
+ .handle_interrupt = kszphy_handle_interrupt,
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
@@ -1189,6 +1213,7 @@ static struct phy_driver ksphy_driver[] = {
.config_init = kszphy_config_init,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
+ .handle_interrupt = kszphy_handle_interrupt,
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
@@ -1205,6 +1230,7 @@ static struct phy_driver ksphy_driver[] = {
.config_aneg = ksz8041_config_aneg,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
+ .handle_interrupt = kszphy_handle_interrupt,
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
@@ -1220,6 +1246,7 @@ static struct phy_driver ksphy_driver[] = {
.config_init = kszphy_config_init,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
+ .handle_interrupt = kszphy_handle_interrupt,
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
@@ -1233,6 +1260,7 @@ static struct phy_driver ksphy_driver[] = {
.config_init = kszphy_config_init,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
+ .handle_interrupt = kszphy_handle_interrupt,
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
@@ -1249,6 +1277,7 @@ static struct phy_driver ksphy_driver[] = {
.config_init = kszphy_config_init,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
+ .handle_interrupt = kszphy_handle_interrupt,
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
@@ -1264,6 +1293,7 @@ static struct phy_driver ksphy_driver[] = {
.config_init = ksz8081_config_init,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
+ .handle_interrupt = kszphy_handle_interrupt,
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
@@ -1277,6 +1307,7 @@ static struct phy_driver ksphy_driver[] = {
.config_init = ksz8061_config_init,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
+ .handle_interrupt = kszphy_handle_interrupt,
.suspend = genphy_suspend,
.resume = genphy_resume,
}, {
@@ -1290,6 +1321,7 @@ static struct phy_driver ksphy_driver[] = {
.config_init = ksz9021_config_init,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
+ .handle_interrupt = kszphy_handle_interrupt,
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
@@ -1309,6 +1341,7 @@ static struct phy_driver ksphy_driver[] = {
.read_status = ksz9031_read_status,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
+ .handle_interrupt = kszphy_handle_interrupt,
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
@@ -1338,6 +1371,7 @@ static struct phy_driver ksphy_driver[] = {
.read_status = genphy_read_status,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,
+ .handle_interrupt = kszphy_handle_interrupt,
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,