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net: phy: marvell: Fix MDI-x polarity setting in 88e1118-compatible PHYs 

When setting up autonegotiation for 88E1118R and compatible PHYs,
a software reset of PHY is issued before setting up polarity.
This is incorrect as changes of MDI Crossover Mode bits are
disruptive to the normal operation and must be followed by a
software reset to take effect. Let's patch m88e1118_config_aneg()
to fix the issue mentioned before by invoking software reset
of the PHY just after setting up MDI-x polarity.

Fixes: 605f196efb ("phy: Add support for Marvell 88E1118 PHY")
Signed-off-by: Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Cc: stable@vger.kernel.org
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Parkhomenko 2022-02-06 00:49:51 +03:00 committed by David S. Miller
parent 59085208e4
commit aec12836e7
1 changed files with 4 additions and 5 deletions
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9
drivers/net/phy/marvell.c
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@ -1213,16 +1213,15 @@ static int m88e1118_config_aneg(struct phy_device *phydev)
{
int err;
err = genphy_soft_reset(phydev);
if (err < 0)
return err;
err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
if (err < 0)
return err;
err = genphy_config_aneg(phydev);
return 0;
if (err < 0)
return err;
return genphy_soft_reset(phydev);
}
static int m88e1118_config_init(struct phy_device *phydev)