Index: linux-pm/drivers/thermal/thermal_core.h
===================================================================
--- linux-pm.orig/drivers/thermal/thermal_core.h
+++ linux-pm/drivers/thermal/thermal_core.h
@@ -122,6 +122,15 @@ void __thermal_zone_device_update(struct
 void __thermal_zone_set_trips(struct thermal_zone_device *tz);
 int __thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
 			    struct thermal_trip *trip);
+
+enum thermal_set_trip_target {
+	THERMAL_TRIP_SET_TEMP,
+	THERMAL_TRIP_SET_HYST,
+};
+
+int thermal_zone_set_trip(struct thermal_zone_device *tz, int trip_id,
+			  enum thermal_set_trip_target what, const char *buf);
+
 int thermal_zone_trip_id(struct thermal_zone_device *tz,
 			 const struct thermal_trip *trip);
 int __thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp);
Index: linux-pm/drivers/thermal/thermal_sysfs.c
===================================================================
--- linux-pm.orig/drivers/thermal/thermal_sysfs.c
+++ linux-pm/drivers/thermal/thermal_sysfs.c
@@ -120,31 +120,17 @@ trip_point_temp_store(struct device *dev
 		      const char *buf, size_t count)
 {
 	struct thermal_zone_device *tz = to_thermal_zone(dev);
-	struct thermal_trip trip;
-	int trip_id, ret;
+	int trip_id;
+	int ret;
+
+	if (!device_is_registered(dev))
+		return -ENODEV;
 
 	if (sscanf(attr->attr.name, "trip_point_%d_temp", &trip_id) != 1)
 		return -EINVAL;
 
-	mutex_lock(&tz->lock);
-
-	if (!device_is_registered(dev)) {
-		ret = -ENODEV;
-		goto unlock;
-	}
-
-	ret = __thermal_zone_get_trip(tz, trip_id, &trip);
-	if (ret)
-		goto unlock;
-
-	ret = kstrtoint(buf, 10, &trip.temperature);
-	if (ret)
-		goto unlock;
+	ret = thermal_zone_set_trip(tz, trip_id, THERMAL_TRIP_SET_TEMP, buf);
 
-	ret = thermal_zone_set_trip(tz, trip_id, &trip);
-unlock:
-	mutex_unlock(&tz->lock);
-	
 	return ret ? ret : count;
 }
 
@@ -179,30 +165,16 @@ trip_point_hyst_store(struct device *dev
 		      const char *buf, size_t count)
 {
 	struct thermal_zone_device *tz = to_thermal_zone(dev);
-	struct thermal_trip trip;
-	int trip_id, ret;
+	int trip_id;
+	int ret;
+
+	if (!device_is_registered(dev))
+		return -ENODEV;
 
 	if (sscanf(attr->attr.name, "trip_point_%d_hyst", &trip_id) != 1)
 		return -EINVAL;
 
-	mutex_lock(&tz->lock);
-
-	if (!device_is_registered(dev)) {
-		ret = -ENODEV;
-		goto unlock;
-	}
-
-	ret = __thermal_zone_get_trip(tz, trip_id, &trip);
-	if (ret)
-		goto unlock;
-
-	ret = kstrtoint(buf, 10, &trip.hysteresis);
-	if (ret)
-		goto unlock;
-
-	ret = thermal_zone_set_trip(tz, trip_id, &trip);
-unlock:
-	mutex_unlock(&tz->lock);
+	ret = thermal_zone_set_trip(tz, trip_id, THERMAL_TRIP_SET_HYST, buf);
 
 	return ret ? ret : count;
 }
Index: linux-pm/drivers/thermal/thermal_trip.c
===================================================================
--- linux-pm.orig/drivers/thermal/thermal_trip.c
+++ linux-pm/drivers/thermal/thermal_trip.c
@@ -148,39 +148,61 @@ int thermal_zone_get_trip(struct thermal
 EXPORT_SYMBOL_GPL(thermal_zone_get_trip);
 
 int thermal_zone_set_trip(struct thermal_zone_device *tz, int trip_id,
-			  const struct thermal_trip *trip)
+			  enum thermal_set_trip_target what, const char *buf)
 {
-	struct thermal_trip t;
-	int ret;
+	struct thermal_trip *trip;
+	int val, ret = 0;
 
-	ret = __thermal_zone_get_trip(tz, trip_id, &t);
+	if (trip_id < 0 || trip_id >= tz->num_trips)
+		return -EINVAL;
+
+	ret = kstrtoint(buf, 10, &val);
 	if (ret)
 		return ret;
 
-	if (t.type != trip->type)
-		return -EINVAL;
+	mutex_lock(&tz->lock);
 
-	if (t.temperature != trip->temperature && tz->ops->set_trip_temp) {
-		ret = tz->ops->set_trip_temp(tz, trip_id, trip->temperature);
-		if (ret)
-			return ret;
-	}
+	trip = &tz->trips[trip_id];
 
-	if (t.hysteresis != trip->hysteresis && tz->ops->set_trip_hyst) {
-		ret = tz->ops->set_trip_hyst(tz, trip_id, trip->hysteresis);
-		if (ret)
-			return ret;
+	switch (what) {
+	case THERMAL_TRIP_SET_TEMP:
+		if (val == trip->temperature)
+			goto unlock;
+
+		if (tz->ops->set_trip_temp) {
+			ret = tz->ops->set_trip_temp(tz, trip_id, val);
+			if (ret)
+				goto unlock;
+		}
+		trip->temperature = val;
+		break;
+
+	case THERMAL_TRIP_SET_HYST:
+		if (val == trip->hysteresis)
+			goto unlock;
+
+		if (tz->ops->set_trip_hyst) {
+			ret = tz->ops->set_trip_hyst(tz, trip_id, val);
+			if (ret)
+				goto unlock;
+		}
+		trip->hysteresis = val;
+		break;
+
+	default:
+		ret = -EINVAL;
+		goto unlock;
 	}
 
-	if (tz->trips && (t.temperature != trip->temperature || t.hysteresis != trip->hysteresis))
-		tz->trips[trip_id] = *trip;
-
 	thermal_notify_tz_trip_change(tz->id, trip_id, trip->type,
 				      trip->temperature, trip->hysteresis);
 
 	__thermal_zone_device_update(tz, THERMAL_TRIP_CHANGED);
 
-	return 0;
+unlock:
+	mutex_unlock(&tz->lock);
+
+	return ret;
 }
 
 int thermal_zone_trip_id(struct thermal_zone_device *tz,
Index: linux-pm/include/linux/thermal.h
===================================================================
--- linux-pm.orig/include/linux/thermal.h
+++ linux-pm/include/linux/thermal.h
@@ -283,9 +283,6 @@ int __thermal_zone_get_trip(struct therm
 int thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
 			  struct thermal_trip *trip);
 
-int thermal_zone_set_trip(struct thermal_zone_device *tz, int trip_id,
-			  const struct thermal_trip *trip);
-
 int for_each_thermal_trip(struct thermal_zone_device *tz,
 			  int (*cb)(struct thermal_trip *, void *),
 			  void *data);
