diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 16ef91dc102f..2675671781cd 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1211,6 +1211,53 @@ int thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
 }
 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)
+{
+	struct thermal_trip t;
+	int ret = -EINVAL;
+
+	mutex_lock(&tz->lock);
+
+	if (!tz->ops->set_trip_temp && !tz->ops->set_trip_hyst && !tz->trips)
+		goto out;
+
+	ret = __thermal_zone_get_trip(tz, trip_id, &t);
+	if (ret)
+		goto out;
+
+	if (t.type != trip->type) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (t.temperature != trip->temperature && tz->ops->set_trip_temp) {
+		ret = tz->ops->set_trip_temp(tz, trip_id, trip->temperature);
+		if (ret)
+			goto out;
+	}
+
+	if (t.hysteresis != trip->hysteresis && tz->ops->set_trip_hyst) {
+		ret = tz->ops->set_trip_hyst(tz, trip_id, trip->hysteresis);
+		if (ret)
+			goto out;
+	}
+
+	if (tz->trips && ((t.temperature != trip->temperature) ||
+			  (t.hysteresis != trip->hysteresis)))
+		tz->trips[trip_id] = *trip;
+out:
+	mutex_unlock(&tz->lock);
+
+	if (!ret) {
+		thermal_notify_tz_trip_change(tz->id, trip_id, trip->type,
+					      trip->temperature, trip->hysteresis);
+		thermal_zone_device_update(tz, THERMAL_TRIP_CHANGED);
+	}
+
+	return ret;
+}
+
 /**
  * thermal_zone_device_register_with_trips() - register a new thermal zone device
  * @type:	the thermal zone device type
diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index 6c45194aaabb..8d7b25ab67c2 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -115,32 +115,19 @@ trip_point_temp_store(struct device *dev, struct device_attribute *attr,
 	struct thermal_trip trip;
 	int trip_id, ret;
 
-	if (!tz->ops->set_trip_temp && !tz->trips)
-		return -EPERM;
-
 	if (sscanf(attr->attr.name, "trip_point_%d_temp", &trip_id) != 1)
 		return -EINVAL;
 
-	if (kstrtoint(buf, 10, &trip.temperature))
-		return -EINVAL;
-
-	if (tz->ops->set_trip_temp) {
-		ret = tz->ops->set_trip_temp(tz, trip_id, trip.temperature);
-		if (ret)
-			return ret;
-	}
-
-	if (tz->trips)
-		tz->trips[trip_id].temperature = trip.temperature;
-
 	ret = thermal_zone_get_trip(tz, trip_id, &trip);
 	if (ret)
 		return ret;
 
-	thermal_notify_tz_trip_change(tz->id, trip_id, trip.type,
-				      trip.temperature, trip.hysteresis);
+	if (kstrtoint(buf, 10, &trip.temperature))
+		return -EINVAL;
 
-	thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
+	ret = thermal_zone_set_trip(tz, trip_id, &trip);
+	if (ret)
+		return ret;
 
 	return count;
 }
@@ -168,29 +155,24 @@ trip_point_hyst_store(struct device *dev, struct device_attribute *attr,
 		      const char *buf, size_t count)
 {
 	struct thermal_zone_device *tz = to_thermal_zone(dev);
-	int trip, ret;
-	int temperature;
-
-	if (!tz->ops->set_trip_hyst)
-		return -EPERM;
+	struct thermal_trip trip;
+	int trip_id, ret;
 
-	if (sscanf(attr->attr.name, "trip_point_%d_hyst", &trip) != 1)
+	if (sscanf(attr->attr.name, "trip_point_%d_hyst", &trip_id) != 1)
 		return -EINVAL;
 
-	if (kstrtoint(buf, 10, &temperature))
-		return -EINVAL;
+	ret = thermal_zone_get_trip(tz, trip_id, &trip);
+	if (ret)
+		return ret;
 
-	/*
-	 * We are not doing any check on the 'temperature' value
-	 * here. The driver implementing 'set_trip_hyst' has to
-	 * take care of this.
-	 */
-	ret = tz->ops->set_trip_hyst(tz, trip, temperature);
+	if (kstrtoint(buf, 10, &trip.hysteresis))
+		return -EINVAL;
 
-	if (!ret)
-		thermal_zone_set_trips(tz);
+	ret = thermal_zone_set_trip(tz, trip_id, &trip);
+	if (ret)
+		return ret;
 
-	return ret ? ret : count;
+	return count;
 }
 
 static ssize_t
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index feb8b61df746..66373f872237 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -338,6 +338,9 @@ static inline void devm_thermal_of_zone_unregister(struct device *dev,
 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 thermal_zone_get_num_trips(struct thermal_zone_device *tz);
 
 int thermal_zone_get_crit_temp(struct thermal_zone_device *tz, int *temp);
