net: dsa: mv88e6xxx: Set STP disable state in port_disable

When requested to disable a port, set the port STP state to disabled. This fully disables the port and should save some power. Signed-off-by: Andrew Lunn <[email protected]> Reviewed-by: Vivien Didelot <[email protected]> Reviewed-by: Florian Fainelli <[email protected]> Signed-off-by: David S. Miller <[email protected]>
adn770 · May 4, 2019 · 4a0eb73 · 4a0eb73
1 parent 2ce1aef
commit 4a0eb73
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2428,6 +2428,9 @@ static void mv88e6xxx_port_disable(struct dsa_switch *ds, int port)
 
 	mutex_lock(&chip->reg_lock);
 
+	if (mv88e6xxx_port_set_state(chip, port, BR_STATE_DISABLED))
+		dev_err(chip->dev, "failed to disable port\n");
+
 	if (chip->info->ops->serdes_irq_free)
 		chip->info->ops->serdes_irq_free(chip, port);