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authorAndrew Lunn <andrew@lunn.ch>2016-04-13 02:40:45 +0200
committerDavid S. Miller <davem@davemloft.net>2016-04-13 18:15:23 -0400
commitc156913b5d62cbaa0e3be29409de562b7d2e006e (patch)
tree502d26a5f6e655a657f4280b98ac257d83adeaf4
parent74c3e2a54b7d9eb57f23fb0e157b90bb6dae629f (diff)
dsa: mv88e6xxx: Use bus in mv88e6xxx_lookup_name()
mv88e6xxx_lookup_name() returns the model name of a switch at a given address on an MII bus. Using mii_bus to identify the bus rather than the host device is more logical, so change the parameter. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/dsa/mv88e6xxx.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index c242ffd8eb09..9985a0cf31f1 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -3068,11 +3068,10 @@ int mv88e6xxx_get_temp_alarm(struct dsa_switch *ds, bool *alarm)
}
#endif /* CONFIG_NET_DSA_HWMON */
-static char *mv88e6xxx_lookup_name(struct device *host_dev, int sw_addr,
+static char *mv88e6xxx_lookup_name(struct mii_bus *bus, int sw_addr,
const struct mv88e6xxx_switch_id *table,
unsigned int num)
{
- struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev);
int i, ret;
if (!bus)
@@ -3090,7 +3089,8 @@ static char *mv88e6xxx_lookup_name(struct device *host_dev, int sw_addr,
/* Look up only the product number */
for (i = 0; i < num; ++i) {
if (table[i].id == (ret & PORT_SWITCH_ID_PROD_NUM_MASK)) {
- dev_warn(host_dev, "unknown revision %d, using base switch 0x%x\n",
+ dev_warn(&bus->dev,
+ "unknown revision %d, using base switch 0x%x\n",
ret & PORT_SWITCH_ID_REV_MASK,
ret & PORT_SWITCH_ID_PROD_NUM_MASK);
return table[i].name;
@@ -3106,9 +3106,13 @@ char *mv88e6xxx_drv_probe(struct device *dsa_dev, struct device *host_dev,
unsigned int num)
{
struct mv88e6xxx_priv_state *ps;
+ struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev);
char *name;
- name = mv88e6xxx_lookup_name(host_dev, sw_addr, table, num);
+ if (!bus)
+ return NULL;
+
+ name = mv88e6xxx_lookup_name(bus, sw_addr, table, num);
if (name) {
ps = devm_kzalloc(dsa_dev, sizeof(*ps), GFP_KERNEL);
if (!ps)