drivers/thermal/thermal_core.c

48  * the thermal core and by the thermal governor code.
66  * bind_previous_governor() - bind the previous governor of the thermal zone
68  * @failed_gov_name:	the name of the governor that failed to register
70  * Register the previous governor of the thermal zone after a new
71  * governor has failed to be bound.
76 	if (tz->governor && tz->governor->bind_to_tz) {
77 		if (tz->governor->bind_to_tz(tz)) {
79 				"governor %s failed to bind and the previous one (%s) failed to bind again, thermal zone %s has no governor\n",
80 				failed_gov_name, tz->governor->name, tz->type);
81 			tz->governor = NULL;
87  * thermal_set_governor() - Switch to another governor
89  * @new_gov:	pointer to the new governor
91  * Change the governor of thermal zone @tz.
93  * Return: 0 on success, an error if the new governor's bind_to_tz() failed.
100 	if (tz->governor && tz->governor->unbind_from_tz)
101 		tz->governor->unbind_from_tz(tz);
112 	tz->governor = new_gov;
117 int thermal_register_governor(struct thermal_governor *governor)
123 	if (!governor)
129 	if (!__find_governor(governor->name)) {
133 		list_add(&governor->governor_list, &thermal_governor_list);
134 		match_default = !strncmp(governor->name,
139 			def_governor = governor;
149 		if (pos->governor)
154 		if (!strncasecmp(name, governor->name, THERMAL_NAME_LENGTH)) {
157 			ret = thermal_set_governor(pos, governor);
160 					"Failed to set governor %s for thermal zone %s: %d\n",
161 					governor->name, pos->type, ret);
168 void thermal_unregister_governor(struct thermal_governor *governor)
172 	if (!governor)
177 	if (!__find_governor(governor->name))
180 	list_del(&governor->governor_list);
185 		if (!strncasecmp(pos->governor->name, governor->name,
226 	struct thermal_governor **governor;
228 	for_each_governor_table(governor)
229 		thermal_unregister_governor(*governor);
235 	struct thermal_governor **governor;
237 	for_each_governor_table(governor) {
238 		ret = thermal_register_governor(*governor);
240 			pr_err("Failed to register governor: '%s'",
241 			       (*governor)->name);
245 		pr_info("Registered thermal governor '%s'",
246 			(*governor)->name);
253 			if (gov == governor)
306  * - Non-critical trips will invoke the governor responsible for that zone;
357 	if (tz->governor)
358 		return tz->governor;
366 	if (!tz->governor || !tz->governor->update_tz)
369 	tz->governor->update_tz(tz, reason);
456 static void thermal_governor_trip_crossed(struct thermal_governor *governor,
464 	if (governor->trip_crossed)
465 		governor->trip_crossed(tz, trip, upward);
470 				 struct thermal_governor *governor,
492 	thermal_governor_trip_crossed(governor, tz, trip, upward);
562 				      struct thermal_governor *governor,
573 		thermal_trip_crossed(tz, td, governor, false);
585 		thermal_trip_crossed(tz, td, governor, true);
612 	struct thermal_governor *governor = thermal_get_tz_governor(tz);
644 	thermal_zone_handle_trips(tz, governor, &low, &high);
650 	if (governor->manage)
651 		governor->manage(tz);
1434 	struct thermal_governor *governor;
1439 		governor = __find_governor(tz->tzp->governor_name);
1441 		governor = def_governor;
1443 	return thermal_set_governor(tz, governor);