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path: root/drivers/net/phy/phy_led_triggers.c
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Diffstat (limited to 'drivers/net/phy/phy_led_triggers.c')
-rw-r--r--drivers/net/phy/phy_led_triggers.c63
1 files changed, 50 insertions, 13 deletions
diff --git a/drivers/net/phy/phy_led_triggers.c b/drivers/net/phy/phy_led_triggers.c
index 94ca42e630bb..39ecad25b201 100644
--- a/drivers/net/phy/phy_led_triggers.c
+++ b/drivers/net/phy/phy_led_triggers.c
@@ -27,12 +27,21 @@ static struct phy_led_trigger *phy_speed_to_led_trigger(struct phy_device *phy,
return NULL;
}
+static void phy_led_trigger_no_link(struct phy_device *phy)
+{
+ if (phy->last_triggered) {
+ led_trigger_event(&phy->last_triggered->trigger, LED_OFF);
+ led_trigger_event(&phy->led_link_trigger->trigger, LED_OFF);
+ phy->last_triggered = NULL;
+ }
+}
+
void phy_led_trigger_change_speed(struct phy_device *phy)
{
struct phy_led_trigger *plt;
if (!phy->link)
- goto out_change_speed;
+ return phy_led_trigger_no_link(phy);
if (phy->speed == 0)
return;
@@ -42,25 +51,28 @@ void phy_led_trigger_change_speed(struct phy_device *phy)
netdev_alert(phy->attached_dev,
"No phy led trigger registered for speed(%d)\n",
phy->speed);
- goto out_change_speed;
+ return phy_led_trigger_no_link(phy);
}
if (plt != phy->last_triggered) {
+ if (!phy->last_triggered)
+ led_trigger_event(&phy->led_link_trigger->trigger,
+ LED_FULL);
+
led_trigger_event(&phy->last_triggered->trigger, LED_OFF);
led_trigger_event(&plt->trigger, LED_FULL);
phy->last_triggered = plt;
}
- return;
-
-out_change_speed:
- if (phy->last_triggered) {
- led_trigger_event(&phy->last_triggered->trigger,
- LED_OFF);
- phy->last_triggered = NULL;
- }
}
EXPORT_SYMBOL_GPL(phy_led_trigger_change_speed);
+static void phy_led_trigger_format_name(struct phy_device *phy, char *buf,
+ size_t size, char *suffix)
+{
+ snprintf(buf, size, PHY_ID_FMT ":%s",
+ phy->mdio.bus->id, phy->mdio.addr, suffix);
+}
+
static int phy_led_trigger_register(struct phy_device *phy,
struct phy_led_trigger *plt,
unsigned int speed)
@@ -77,8 +89,8 @@ static int phy_led_trigger_register(struct phy_device *phy,
snprintf(name_suffix, sizeof(name_suffix), "%dGbps",
DIV_ROUND_CLOSEST(speed, 1000));
- snprintf(plt->name, sizeof(plt->name), PHY_ID_FMT ":%s",
- phy->mdio.bus->id, phy->mdio.addr, name_suffix);
+ phy_led_trigger_format_name(phy, plt->name, sizeof(plt->name),
+ name_suffix);
plt->trigger.name = plt->name;
return led_trigger_register(&plt->trigger);
@@ -99,13 +111,30 @@ int phy_led_triggers_register(struct phy_device *phy)
if (!phy->phy_num_led_triggers)
return 0;
+ phy->led_link_trigger = devm_kzalloc(&phy->mdio.dev,
+ sizeof(*phy->led_link_trigger),
+ GFP_KERNEL);
+ if (!phy->led_link_trigger) {
+ err = -ENOMEM;
+ goto out_clear;
+ }
+
+ phy_led_trigger_format_name(phy, phy->led_link_trigger->name,
+ sizeof(phy->led_link_trigger->name),
+ "link");
+ phy->led_link_trigger->trigger.name = phy->led_link_trigger->name;
+
+ err = led_trigger_register(&phy->led_link_trigger->trigger);
+ if (err)
+ goto out_free_link;
+
phy->phy_led_triggers = devm_kzalloc(&phy->mdio.dev,
sizeof(struct phy_led_trigger) *
phy->phy_num_led_triggers,
GFP_KERNEL);
if (!phy->phy_led_triggers) {
err = -ENOMEM;
- goto out_clear;
+ goto out_unreg_link;
}
for (i = 0; i < phy->phy_num_led_triggers; i++) {
@@ -123,6 +152,11 @@ out_unreg:
while (i--)
phy_led_trigger_unregister(&phy->phy_led_triggers[i]);
devm_kfree(&phy->mdio.dev, phy->phy_led_triggers);
+out_unreg_link:
+ phy_led_trigger_unregister(phy->led_link_trigger);
+out_free_link:
+ devm_kfree(&phy->mdio.dev, phy->led_link_trigger);
+ phy->led_link_trigger = NULL;
out_clear:
phy->phy_num_led_triggers = 0;
return err;
@@ -135,5 +169,8 @@ void phy_led_triggers_unregister(struct phy_device *phy)
for (i = 0; i < phy->phy_num_led_triggers; i++)
phy_led_trigger_unregister(&phy->phy_led_triggers[i]);
+
+ if (phy->led_link_trigger)
+ phy_led_trigger_unregister(phy->led_link_trigger);
}
EXPORT_SYMBOL_GPL(phy_led_triggers_unregister);