diff options
| author | Ioana Ciornei <ioana.ciornei@nxp.com> | 2020-11-13 18:52:19 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-17 11:37:00 -0800 |
| commit | d995a36b7e967e2f990984c741c26710eb8651d4 (patch) | |
| tree | 328f77ab859401bcf24f8b15907e5d73d584c6e2 /drivers/net/phy | |
| parent | 45f52f1238512768c8ca29eb272e5794faf5b471 (diff) | |
| download | linux-d995a36b7e967e2f990984c741c26710eb8651d4.tar.bz2 | |
net: phy: amd: 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.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/phy')
| -rw-r--r-- | drivers/net/phy/amd.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/net/phy/amd.c b/drivers/net/phy/amd.c index eef35f8c8d45..ae75d95c398c 100644 --- a/drivers/net/phy/amd.c +++ b/drivers/net/phy/amd.c @@ -20,6 +20,10 @@ #define MII_AM79C_IR_EN_ANEG 0x0100 /* IR enable Aneg Complete */ #define MII_AM79C_IR_IMASK_INIT (MII_AM79C_IR_EN_LINK | MII_AM79C_IR_EN_ANEG) +#define MII_AM79C_IR_LINK_DOWN BIT(2) +#define MII_AM79C_IR_ANEG_DONE BIT(0) +#define MII_AM79C_IR_IMASK_STAT (MII_AM79C_IR_LINK_DOWN | MII_AM79C_IR_ANEG_DONE) + MODULE_DESCRIPTION("AMD PHY driver"); MODULE_AUTHOR("Heiko Schocher <hs@denx.de>"); MODULE_LICENSE("GPL"); @@ -56,6 +60,24 @@ static int am79c_config_intr(struct phy_device *phydev) return err; } +static irqreturn_t am79c_handle_interrupt(struct phy_device *phydev) +{ + int irq_status; + + irq_status = phy_read(phydev, MII_AM79C_IR); + if (irq_status < 0) { + phy_error(phydev); + return IRQ_NONE; + } + + if (!(irq_status & MII_AM79C_IR_IMASK_STAT)) + return IRQ_NONE; + + phy_trigger_machine(phydev); + + return IRQ_HANDLED; +} + static struct phy_driver am79c_driver[] = { { .phy_id = PHY_ID_AM79C874, .name = "AM79C874", @@ -64,6 +86,7 @@ static struct phy_driver am79c_driver[] = { { .config_init = am79c_config_init, .ack_interrupt = am79c_ack_interrupt, .config_intr = am79c_config_intr, + .handle_interrupt = am79c_handle_interrupt, } }; module_phy_driver(am79c_driver); |