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net: phy: dp83822: disable MDI crossover status change interrupt

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If the cable is disconnected the PHY seems to toggle between MDI and
MDI-X modes. With the MDI crossover status interrupt active this causes
roughly 10 interrupts per second.

As the crossover status isn't checked by the driver, the interrupt can
be disabled to reduce the interrupt load.

Fixes: 87461f7a58 ("net: phy: DP83822 initial driver submission")
Signed-off-by: Felix Riemann <felix.riemann@sma.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20221018104755.30025-1-svc.sw.rte.linux@sma.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Felix Riemann 2022-10-18 12:47:54 +02:00 • committed by Jakub Kicinski
parent ebda44da44
commit 7f378c03aa
1 changed files with 1 additions and 2 deletions

3
drivers/net/phy/dp83822.c
View file

@ -254,8 +254,7 @@ static int dp83822_config_intr(struct phy_device *phydev)
DP83822_EEE_ERROR_CHANGE_INT_EN); DP83822_EEE_ERROR_CHANGE_INT_EN);
if (!dp83822->fx_enabled) if (!dp83822->fx_enabled)
misr_status |= DP83822_MDI_XOVER_INT_EN | misr_status |= DP83822_ANEG_ERR_INT_EN |
DP83822_ANEG_ERR_INT_EN |
DP83822_WOL_PKT_INT_EN; DP83822_WOL_PKT_INT_EN;
err = phy_write(phydev, MII_DP83822_MISR2, misr_status); err = phy_write(phydev, MII_DP83822_MISR2, misr_status);