From fa371c803c4fafbf088381aa1235ccde7dfa09dd Mon Sep 17 00:00:00 2001 From: Vivien Didelot Date: Tue, 5 Dec 2017 15:34:10 -0500 Subject: net: dsa: mv88e6xxx: helper to setup upstream port Add a helper function to setup the upstream port of a given port. This is the port used to reach the dedicated CPU port. This function will be extended later to setup the global upstream port as well. Signed-off-by: Vivien Didelot Signed-off-by: David S. Miller --- drivers/net/dsa/mv88e6xxx/chip.c | 27 ++++++++++++++++++++------- 1 file changed, 20 insertions(+), 7 deletions(-) (limited to 'drivers/net/dsa') diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 4b9ac962fd49..77488b40cceb 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -1744,6 +1744,23 @@ static int mv88e6xxx_serdes_power(struct mv88e6xxx_chip *chip, int port, return 0; } +static int mv88e6xxx_setup_upstream_port(struct mv88e6xxx_chip *chip, int port) +{ + struct dsa_switch *ds = chip->ds; + int upstream_port; + int err; + + upstream_port = dsa_upstream_port(ds); + if (chip->info->ops->port_set_upstream_port) { + err = chip->info->ops->port_set_upstream_port(chip, port, + upstream_port); + if (err) + return err; + } + + return 0; +} + static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port) { struct dsa_switch *ds = chip->ds; @@ -1814,13 +1831,9 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port) if (err) return err; - reg = 0; - if (chip->info->ops->port_set_upstream_port) { - err = chip->info->ops->port_set_upstream_port( - chip, port, dsa_upstream_port(ds)); - if (err) - return err; - } + err = mv88e6xxx_setup_upstream_port(chip, port); + if (err) + return err; err = mv88e6xxx_port_set_8021q_mode(chip, port, MV88E6XXX_PORT_CTL2_8021Q_MODE_DISABLED); -- cgit v1.2.3