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| author | Maxime Chevallier <maxime.chevallier@bootlin.com> | 2019-02-28 22:14:33 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-02-28 15:16:06 -0800 |
| commit | d235c48b40d399328585a68f3f9bf7cc3062d586 (patch) | |
| tree | e2105a41094025e102dc351007fafd5c3e71fffe /drivers/net/dsa | |
| parent | 6e46e2d821bb22b285ae8187959096b65d063b0d (diff) | |
| download | linux-d235c48b40d399328585a68f3f9bf7cc3062d586.tar.gz linux-d235c48b40d399328585a68f3f9bf7cc3062d586.tar.bz2 linux-d235c48b40d399328585a68f3f9bf7cc3062d586.zip | |
net: dsa: mv88e6xxx: power serdes on/off for 10G interfaces on 6390X
Upon setting the cmode on 6390 and 6390X, the associated serdes
interfaces must be powered off/on.
Both 6390X and 6390 share code to do so, but it currently uses the 6390
specific helper mv88e6390_serdes_power() to disable and enable the
serdes interface.
This call will fail silently on 6390X when trying so set a 10G interface
such as XAUI or RXAUI, since mv88e6390_serdes_power() internally grabs
the lane number based on modes supported by the 6390, and returns 0 when
getting -ENODEV as a lane number.
Using mv88e6390x_serdes_power() should be safe here, since we explicitly
rule-out all ports but the 9 and 10, and because modes supported by 6390
ports 9 and 10 are a subset of those supported on 6390X.
This was tested on 6390X using RXAUI mode.
Fixes: 364e9d7776a3 ("net: dsa: mv88e6xxx: Power on/off SERDES on cmode change")
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/port.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c index ebd26b6a93e6..4b02c96f6786 100644 --- a/drivers/net/dsa/mv88e6xxx/port.c +++ b/drivers/net/dsa/mv88e6xxx/port.c @@ -408,7 +408,7 @@ int mv88e6390x_port_set_cmode(struct mv88e6xxx_chip *chip, int port, return err; } - err = mv88e6390_serdes_power(chip, port, false); + err = mv88e6390x_serdes_power(chip, port, false); if (err) return err; @@ -424,7 +424,7 @@ int mv88e6390x_port_set_cmode(struct mv88e6xxx_chip *chip, int port, if (err) return err; - err = mv88e6390_serdes_power(chip, port, true); + err = mv88e6390x_serdes_power(chip, port, true); if (err) return err; |