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path: root/drivers/thermal/thermal_core.c
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Diffstat (limited to 'drivers/thermal/thermal_core.c')
-rw-r--r--drivers/thermal/thermal_core.c43
1 files changed, 27 insertions, 16 deletions
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 64de09861c05..4a291d205d5c 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -380,6 +380,25 @@ static void thermal_emergency_poweroff(void)
msecs_to_jiffies(poweroff_delay_ms));
}
+void thermal_zone_device_critical(struct thermal_zone_device *tz)
+{
+ dev_emerg(&tz->device, "%s: critical temperature reached, "
+ "shutting down\n", tz->type);
+
+ mutex_lock(&poweroff_lock);
+ if (!power_off_triggered) {
+ /*
+ * Queue a backup emergency shutdown in the event of
+ * orderly_poweroff failure
+ */
+ thermal_emergency_poweroff();
+ orderly_poweroff(true);
+ power_off_triggered = true;
+ }
+ mutex_unlock(&poweroff_lock);
+}
+EXPORT_SYMBOL(thermal_zone_device_critical);
+
static void handle_critical_trips(struct thermal_zone_device *tz,
int trip, enum thermal_trip_type trip_type)
{
@@ -396,22 +415,10 @@ static void handle_critical_trips(struct thermal_zone_device *tz,
if (tz->ops->notify)
tz->ops->notify(tz, trip, trip_type);
- if (trip_type == THERMAL_TRIP_CRITICAL) {
- dev_emerg(&tz->device,
- "critical temperature reached (%d C), shutting down\n",
- tz->temperature / 1000);
- mutex_lock(&poweroff_lock);
- if (!power_off_triggered) {
- /*
- * Queue a backup emergency shutdown in the event of
- * orderly_poweroff failure
- */
- thermal_emergency_poweroff();
- orderly_poweroff(true);
- power_off_triggered = true;
- }
- mutex_unlock(&poweroff_lock);
- }
+ if (trip_type == THERMAL_TRIP_HOT && tz->ops->hot)
+ tz->ops->hot(tz);
+ else if (trip_type == THERMAL_TRIP_CRITICAL)
+ tz->ops->critical(tz);
}
static void handle_thermal_trip(struct thermal_zone_device *tz, int trip)
@@ -1336,6 +1343,10 @@ thermal_zone_device_register(const char *type, int trips, int mask,
tz->id = id;
strlcpy(tz->type, type, sizeof(tz->type));
+
+ if (!ops->critical)
+ ops->critical = thermal_zone_device_critical;
+
tz->ops = ops;
tz->tzp = tzp;
tz->device.class = &thermal_class;