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| author | Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru> | 2022-02-06 00:49:51 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-02-16 12:52:47 +0100 |
| commit | 09295a9893198a3c3e36bf44810a078927722fd1 (patch) | |
| tree | acac148d9a5eb90c0e83c3613ca3628bfb7d342a | |
| parent | f84d17e6dd9050e1a9fb4ab570e6cde78c607df0 (diff) | |
| download | linux-stable-09295a9893198a3c3e36bf44810a078927722fd1.tar.gz linux-stable-09295a9893198a3c3e36bf44810a078927722fd1.tar.bz2 linux-stable-09295a9893198a3c3e36bf44810a078927722fd1.zip | |
net: phy: marvell: Fix MDI-x polarity setting in 88e1118-compatible PHYs
commit aec12836e7196e4d360b2cbf20cf7aa5139ad2ec upstream.
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: 605f196efbf8 ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/phy/marvell.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index 3db82162292e..53420c531266 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -888,16 +888,15 @@ static int m88e1118_config_aneg(struct phy_device *phydev) { int err; - err = genphy_soft_reset(phydev); + err = marvell_set_polarity(phydev, phydev->mdix_ctrl); if (err < 0) return err; - err = marvell_set_polarity(phydev, phydev->mdix_ctrl); + err = genphy_config_aneg(phydev); if (err < 0) return err; - err = genphy_config_aneg(phydev); - return 0; + return genphy_soft_reset(phydev); } static int m88e1118_config_init(struct phy_device *phydev) |