net: phy: deal properly with autoneg incomplete in genphy_c45_read_lpa

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The link partner advertisement registers are not guaranteed to contain
valid values if autoneg is incomplete. Therefore, if
MDIO_AN_STAT1_COMPLETE isn't set, let's clear all link partner
capability bits. This also avoids unnecessary register reads if link
is down and phylib is in polling mode.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Heiner Kallweit 2019-03-31 19:54:07 +02:00 • committed by David S. Miller

parent 5d237a07f1

commit 372fcc1b8b

1 changed files with 11 additions and 0 deletions

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drivers/net/phy/phy-c45.c

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