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net: phy: marvell: don't interpret PHY status unless resolved

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Don't attempt to interpret the PHY specific status register unless
the PHY is indicating that the resolution is valid.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Russell King 2020-02-27 09:44:49 +00:00 committed by David S. Miller
parent e387f7d5fc
commit b82cf17ff1
1 changed files with 5 additions and 0 deletions
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5
drivers/net/phy/marvell.c
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@ -1306,6 +1306,9 @@ static int marvell_read_status_page_an(struct phy_device *phydev,
}
}
if (!(status & MII_M1011_PHY_STATUS_RESOLVED))
return 0;
if (status & MII_M1011_PHY_STATUS_FULLDUPLEX)
phydev->duplex = DUPLEX_FULL;
else
@ -1365,6 +1368,8 @@ static int marvell_read_status_page(struct phy_device *phydev, int page)
linkmode_zero(phydev->lp_advertising);
phydev->pause = 0;
phydev->asym_pause = 0;
phydev->speed = SPEED_UNKNOWN;
phydev->duplex = DUPLEX_UNKNOWN;
if (phydev->autoneg == AUTONEG_ENABLE)
err = marvell_read_status_page_an(phydev, fiber, status);