[PATCH net-next 04/19] net: phy: at803x: implement generic .handle_interrupt() callback
From: Ioana Ciornei <hidden>
Date: 2020-10-29 10:10:51
Also in:
lkml
Subsystem:
ethernet phy library, networking drivers, the rest · Maintainers:
Andrew Lunn, Heiner Kallweit, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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. Cc: Oleksij Rempel <o.rempel@pengutronix.de> Cc: Michael Walle <redacted> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> --- drivers/net/phy/at803x.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+)
diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index ed601a7e46a0..106c6f53755f 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c@@ -628,6 +628,24 @@ static int at803x_config_intr(struct phy_device *phydev) return err; } +static irqreturn_t at803x_handle_interrupt(struct phy_device *phydev) +{ + int irq_status; + + irq_status = phy_read(phydev, AT803X_INTR_STATUS); + if (irq_status < 0) { + phy_error(phydev); + return IRQ_NONE; + } + + if (irq_status == 0) + return IRQ_NONE; + + phy_trigger_machine(phydev); + + return IRQ_HANDLED; +} + static void at803x_link_change_notify(struct phy_device *phydev) { /*
@@ -1064,6 +1082,7 @@ static struct phy_driver at803x_driver[] = { .read_status = at803x_read_status, .ack_interrupt = at803x_ack_interrupt, .config_intr = at803x_config_intr, + .handle_interrupt = at803x_handle_interrupt, .get_tunable = at803x_get_tunable, .set_tunable = at803x_set_tunable, .cable_test_start = at803x_cable_test_start,
@@ -1084,6 +1103,7 @@ static struct phy_driver at803x_driver[] = { /* PHY_BASIC_FEATURES */ .ack_interrupt = at803x_ack_interrupt, .config_intr = at803x_config_intr, + .handle_interrupt = at803x_handle_interrupt, }, { /* Qualcomm Atheros AR8031/AR8033 */ PHY_ID_MATCH_EXACT(ATH8031_PHY_ID),
@@ -1102,6 +1122,7 @@ static struct phy_driver at803x_driver[] = { .aneg_done = at803x_aneg_done, .ack_interrupt = &at803x_ack_interrupt, .config_intr = &at803x_config_intr, + .handle_interrupt = at803x_handle_interrupt, .get_tunable = at803x_get_tunable, .set_tunable = at803x_set_tunable, .cable_test_start = at803x_cable_test_start,
@@ -1122,6 +1143,7 @@ static struct phy_driver at803x_driver[] = { /* PHY_BASIC_FEATURES */ .ack_interrupt = at803x_ack_interrupt, .config_intr = at803x_config_intr, + .handle_interrupt = at803x_handle_interrupt, .cable_test_start = at803x_cable_test_start, .cable_test_get_status = at803x_cable_test_get_status, }, {
@@ -1134,6 +1156,7 @@ static struct phy_driver at803x_driver[] = { /* PHY_BASIC_FEATURES */ .ack_interrupt = &at803x_ack_interrupt, .config_intr = &at803x_config_intr, + .handle_interrupt = at803x_handle_interrupt, .cable_test_start = at803x_cable_test_start, .cable_test_get_status = at803x_cable_test_get_status, .read_status = at803x_read_status,
--
2.28.0