net: dsa: Pass device pointer to dsa_register_switch

In preparation for allowing dsa_register_switch() to be supplied with
device/platform data, pass down a struct device pointer instead of a
struct device_node.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 866222a..2cf489c 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -578,8 +578,9 @@ static struct device_node *dsa_get_ports(struct dsa_switch *ds,
 	return ports;
 }
 
-static int _dsa_register_switch(struct dsa_switch *ds, struct device_node *np)
+static int _dsa_register_switch(struct dsa_switch *ds, struct device *dev)
 {
+	struct device_node *np = dev->of_node;
 	struct device_node *ports = dsa_get_ports(ds, np);
 	struct dsa_switch_tree *dst;
 	u32 tree, index;
@@ -659,12 +660,12 @@ static int _dsa_register_switch(struct dsa_switch *ds, struct device_node *np)
 	return err;
 }
 
-int dsa_register_switch(struct dsa_switch *ds, struct device_node *np)
+int dsa_register_switch(struct dsa_switch *ds, struct device *dev)
 {
 	int err;
 
 	mutex_lock(&dsa2_mutex);
-	err = _dsa_register_switch(ds, np);
+	err = _dsa_register_switch(ds, dev);
 	mutex_unlock(&dsa2_mutex);
 
 	return err;