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Date: Mon, 23 Nov 2020 17:38:11 +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 09/15] net: phy: national: 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. Signed-off-by: Ioana Ciornei <ioana.ciornei@....com> --- drivers/net/phy/national.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/net/phy/national.c b/drivers/net/phy/national.c index a5bf0874c7d8..8c71fd66b0b1 100644 --- a/drivers/net/phy/national.c +++ b/drivers/net/phy/national.c @@ -89,6 +89,27 @@ static int ns_ack_interrupt(struct phy_device *phydev) return ret; } +static irqreturn_t ns_handle_interrupt(struct phy_device *phydev) +{ + int irq_status; + + irq_status = phy_read(phydev, DP83865_INT_STATUS); + if (irq_status < 0) { + phy_error(phydev); + return IRQ_NONE; + } + + if (!(irq_status & DP83865_INT_MASK_DEFAULT)) + return IRQ_NONE; + + /* clear the interrupt */ + phy_write(phydev, DP83865_INT_CLEAR, irq_status & ~0x7); + + phy_trigger_machine(phydev); + + return IRQ_HANDLED; +} + static void ns_giga_speed_fallback(struct phy_device *phydev, int mode) { int bmcr = phy_read(phydev, MII_BMCR); @@ -135,6 +156,7 @@ static struct phy_driver dp83865_driver[] = { { .config_init = ns_config_init, .ack_interrupt = ns_ack_interrupt, .config_intr = ns_config_intr, + .handle_interrupt = ns_handle_interrupt, } }; module_phy_driver(dp83865_driver); -- 2.28.0
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