diff options
Diffstat (limited to 'drivers/net/dsa')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/chip.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 65da6709a173..bfd5a7faef3b 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -553,11 +553,28 @@ int mv88e6xxx_port_setup_mac(struct mv88e6xxx_chip *chip, int port, int link, int speed, int duplex, int pause, phy_interface_t mode) { + struct phylink_link_state state; int err; if (!chip->info->ops->port_set_link) return 0; + if (!chip->info->ops->port_link_state) + return 0; + + err = chip->info->ops->port_link_state(chip, port, &state); + if (err) + return err; + + /* Has anything actually changed? We don't expect the + * interface mode to change without one of the other + * parameters also changing + */ + if (state.link == link && + state.speed == speed && + state.duplex == duplex) + return 0; + /* Port's MAC control must not be changed unless the link is down */ err = chip->info->ops->port_set_link(chip, port, 0); if (err) |