185 static int acpi_thermal_get_temperature(struct acpi_thermal *tz)  in acpi_thermal_get_temperature()  argument
190 	if (!tz)  in acpi_thermal_get_temperature()
193 	tz->last_temperature = tz->temperature;  in acpi_thermal_get_temperature()
195 	status = acpi_evaluate_integer(tz->device->handle, "_TMP", NULL, &tmp);  in acpi_thermal_get_temperature()
199 	tz->temperature = tmp;  in acpi_thermal_get_temperature()
201 			  tz->temperature));  in acpi_thermal_get_temperature()
206 static int acpi_thermal_get_polling_frequency(struct acpi_thermal *tz)  in acpi_thermal_get_polling_frequency()  argument
211 	if (!tz)  in acpi_thermal_get_polling_frequency()
214 	status = acpi_evaluate_integer(tz->device->handle, "_TZP", NULL, &tmp);  in acpi_thermal_get_polling_frequency()
218 	tz->polling_frequency = tmp;  in acpi_thermal_get_polling_frequency()
220 			  tz->polling_frequency));  in acpi_thermal_get_polling_frequency()
225 static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode)  in acpi_thermal_set_cooling_mode()  argument
227 	if (!tz)  in acpi_thermal_set_cooling_mode()
230 	if (ACPI_FAILURE(acpi_execute_simple_method(tz->device->handle,  in acpi_thermal_set_cooling_mode()
265 static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)  in acpi_thermal_trips_update()  argument
275 		status = acpi_evaluate_integer(tz->device->handle,  in acpi_thermal_trips_update()
277 		tz->trips.critical.temperature = tmp;  in acpi_thermal_trips_update()
285 			tz->trips.critical.flags.valid = 0;  in acpi_thermal_trips_update()
291 			tz->trips.critical.flags.valid = 0;  in acpi_thermal_trips_update()
293 			tz->trips.critical.flags.valid = 1;  in acpi_thermal_trips_update()
296 					  tz->trips.critical.temperature));  in acpi_thermal_trips_update()
298 		if (tz->trips.critical.flags.valid == 1) {  in acpi_thermal_trips_update()
300 				tz->trips.critical.flags.valid = 0;  in acpi_thermal_trips_update()
307 				if (crt_k > tz->trips.critical.temperature)  in acpi_thermal_trips_update()
310 				tz->trips.critical.temperature = crt_k;  in acpi_thermal_trips_update()
317 		status = acpi_evaluate_integer(tz->device->handle,  in acpi_thermal_trips_update()
320 			tz->trips.hot.flags.valid = 0;  in acpi_thermal_trips_update()
324 			tz->trips.hot.temperature = tmp;  in acpi_thermal_trips_update()
325 			tz->trips.hot.flags.valid = 1;  in acpi_thermal_trips_update()
328 					tz->trips.hot.temperature));  in acpi_thermal_trips_update()
333 	if (((flag & ACPI_TRIPS_PASSIVE) && tz->trips.passive.flags.valid) ||  in acpi_thermal_trips_update()
335 		valid = tz->trips.passive.flags.valid;  in acpi_thermal_trips_update()
342 			status = acpi_evaluate_integer(tz->device->handle,  in acpi_thermal_trips_update()
347 			tz->trips.passive.flags.valid = 0;  in acpi_thermal_trips_update()
349 			tz->trips.passive.temperature = tmp;  in acpi_thermal_trips_update()
350 			tz->trips.passive.flags.valid = 1;  in acpi_thermal_trips_update()
353 						tz->device->handle, "_TC1",  in acpi_thermal_trips_update()
356 					tz->trips.passive.flags.valid = 0;  in acpi_thermal_trips_update()
358 					tz->trips.passive.tc1 = tmp;  in acpi_thermal_trips_update()
360 						tz->device->handle, "_TC2",  in acpi_thermal_trips_update()
363 					tz->trips.passive.flags.valid = 0;  in acpi_thermal_trips_update()
365 					tz->trips.passive.tc2 = tmp;  in acpi_thermal_trips_update()
367 						tz->device->handle, "_TSP",  in acpi_thermal_trips_update()
370 					tz->trips.passive.flags.valid = 0;  in acpi_thermal_trips_update()
372 					tz->trips.passive.tsp = tmp;  in acpi_thermal_trips_update()
376 	if ((flag & ACPI_TRIPS_DEVICES) && tz->trips.passive.flags.valid) {  in acpi_thermal_trips_update()
378 		status = acpi_evaluate_reference(tz->device->handle, "_PSL",  in acpi_thermal_trips_update()
382 			tz->trips.passive.flags.valid = 0;  in acpi_thermal_trips_update()
385 			tz->trips.passive.flags.valid = 1;  in acpi_thermal_trips_update()
387 		if (memcmp(&tz->trips.passive.devices, &devices,  in acpi_thermal_trips_update()
389 			memcpy(&tz->trips.passive.devices, &devices,  in acpi_thermal_trips_update()
395 		if (valid != tz->trips.passive.flags.valid)  in acpi_thermal_trips_update()
402 		valid = tz->trips.active[i].flags.valid;  in acpi_thermal_trips_update()
408 			tz->trips.active[i].flags.valid)) {  in acpi_thermal_trips_update()
409 			status = acpi_evaluate_integer(tz->device->handle,  in acpi_thermal_trips_update()
412 				tz->trips.active[i].flags.valid = 0;  in acpi_thermal_trips_update()
418 					tz->trips.active[0].temperature =  in acpi_thermal_trips_update()
425 					tz->trips.active[i - 1].temperature =  in acpi_thermal_trips_update()
426 						(tz->trips.active[i - 2].temperature <  in acpi_thermal_trips_update()
428 						tz->trips.active[i - 2].temperature :  in acpi_thermal_trips_update()
432 				tz->trips.active[i].temperature = tmp;  in acpi_thermal_trips_update()
433 				tz->trips.active[i].flags.valid = 1;  in acpi_thermal_trips_update()
438 		if ((flag & ACPI_TRIPS_DEVICES) && tz->trips.active[i].flags.valid ) {  in acpi_thermal_trips_update()
440 			status = acpi_evaluate_reference(tz->device->handle,  in acpi_thermal_trips_update()
445 				tz->trips.active[i].flags.valid = 0;  in acpi_thermal_trips_update()
448 				tz->trips.active[i].flags.valid = 1;  in acpi_thermal_trips_update()
450 			if (memcmp(&tz->trips.active[i].devices, &devices,  in acpi_thermal_trips_update()
452 				memcpy(&tz->trips.active[i].devices, &devices,  in acpi_thermal_trips_update()
458 			if (valid != tz->trips.active[i].flags.valid)  in acpi_thermal_trips_update()
461 		if (!tz->trips.active[i].flags.valid)  in acpi_thermal_trips_update()
467 		status = acpi_evaluate_reference(tz->device->handle, "_TZD",  in acpi_thermal_trips_update()
470 		    && memcmp(&tz->devices, &devices, sizeof(devices))) {  in acpi_thermal_trips_update()
471 			tz->devices = devices;  in acpi_thermal_trips_update()
479 static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)  in acpi_thermal_get_trip_points()  argument
481 	int i, valid, ret = acpi_thermal_trips_update(tz, ACPI_TRIPS_INIT);  in acpi_thermal_get_trip_points()
486 	valid = tz->trips.critical.flags.valid |  in acpi_thermal_get_trip_points()
487 		tz->trips.hot.flags.valid |  in acpi_thermal_get_trip_points()
488 		tz->trips.passive.flags.valid;  in acpi_thermal_get_trip_points()
491 		valid |= tz->trips.active[i].flags.valid;  in acpi_thermal_get_trip_points()
504 	struct acpi_thermal *tz = thermal->devdata;  in thermal_get_temp()  local
507 	if (!tz)  in thermal_get_temp()
510 	result = acpi_thermal_get_temperature(tz);  in thermal_get_temp()
514 	*temp = deci_kelvin_to_millicelsius_with_offset(tz->temperature,  in thermal_get_temp()
515 							tz->kelvin_offset);  in thermal_get_temp()
522 	struct acpi_thermal *tz = thermal->devdata;  in thermal_get_trip_type()  local
525 	if (!tz || trip < 0)  in thermal_get_trip_type()
528 	if (tz->trips.critical.flags.valid) {  in thermal_get_trip_type()
536 	if (tz->trips.hot.flags.valid) {  in thermal_get_trip_type()
544 	if (tz->trips.passive.flags.valid) {  in thermal_get_trip_type()
553 		tz->trips.active[i].flags.valid; i++) {  in thermal_get_trip_type()
567 	struct acpi_thermal *tz = thermal->devdata;  in thermal_get_trip_temp()  local
570 	if (!tz || trip < 0)  in thermal_get_trip_temp()
573 	if (tz->trips.critical.flags.valid) {  in thermal_get_trip_temp()
576 				tz->trips.critical.temperature,  in thermal_get_trip_temp()
577 				tz->kelvin_offset);  in thermal_get_trip_temp()
583 	if (tz->trips.hot.flags.valid) {  in thermal_get_trip_temp()
586 				tz->trips.hot.temperature,  in thermal_get_trip_temp()
587 				tz->kelvin_offset);  in thermal_get_trip_temp()
593 	if (tz->trips.passive.flags.valid) {  in thermal_get_trip_temp()
596 				tz->trips.passive.temperature,  in thermal_get_trip_temp()
597 				tz->kelvin_offset);  in thermal_get_trip_temp()
604 		tz->trips.active[i].flags.valid; i++) {  in thermal_get_trip_temp()
607 				tz->trips.active[i].temperature,  in thermal_get_trip_temp()
608 				tz->kelvin_offset);  in thermal_get_trip_temp()
620 	struct acpi_thermal *tz = thermal->devdata;  in thermal_get_crit_temp()  local
622 	if (tz->trips.critical.flags.valid) {  in thermal_get_crit_temp()
624 				tz->trips.critical.temperature,  in thermal_get_crit_temp()
625 				tz->kelvin_offset);  in thermal_get_crit_temp()
634 	struct acpi_thermal *tz = thermal->devdata;  in thermal_get_trend()  local
644 					tz->temperature, tz->kelvin_offset);  in thermal_get_trend()
661 	i = (tz->trips.passive.tc1 * (tz->temperature - tz->last_temperature))  in thermal_get_trend()
662 		+ (tz->trips.passive.tc2  in thermal_get_trend()
663 		* (tz->temperature - tz->trips.passive.temperature));  in thermal_get_trend()
679 	struct acpi_thermal *tz = thermal->devdata;  in thermal_notify()  local
688 	acpi_bus_generate_netlink_event(tz->device->pnp.device_class,  in thermal_notify()
689 					dev_name(&tz->device->dev), type, 1);  in thermal_notify()
702 	struct acpi_thermal *tz = thermal->devdata;  in acpi_thermal_cooling_device_cb()  local
711 	if (tz->trips.critical.flags.valid)  in acpi_thermal_cooling_device_cb()
714 	if (tz->trips.hot.flags.valid)  in acpi_thermal_cooling_device_cb()
717 	if (tz->trips.passive.flags.valid) {  in acpi_thermal_cooling_device_cb()
719 		for (i = 0; i < tz->trips.passive.devices.count;  in acpi_thermal_cooling_device_cb()
721 			handle = tz->trips.passive.devices.handles[i];  in acpi_thermal_cooling_device_cb()
741 		if (!tz->trips.active[i].flags.valid)  in acpi_thermal_cooling_device_cb()
745 		    j < tz->trips.active[i].devices.count;  in acpi_thermal_cooling_device_cb()
747 			handle = tz->trips.active[i].devices.handles[j];  in acpi_thermal_cooling_device_cb()
764 	for (i = 0; i < tz->devices.count; i++) {  in acpi_thermal_cooling_device_cb()
765 		handle = tz->devices.handles[i];  in acpi_thermal_cooling_device_cb()
812 static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)  in acpi_thermal_register_thermal_zone()  argument
819 	if (tz->trips.critical.flags.valid)  in acpi_thermal_register_thermal_zone()
822 	if (tz->trips.hot.flags.valid)  in acpi_thermal_register_thermal_zone()
825 	if (tz->trips.passive.flags.valid)  in acpi_thermal_register_thermal_zone()
829 			tz->trips.active[i].flags.valid; i++, trips++);  in acpi_thermal_register_thermal_zone()
831 	if (tz->trips.passive.flags.valid)  in acpi_thermal_register_thermal_zone()
832 		tz->thermal_zone =  in acpi_thermal_register_thermal_zone()
833 			thermal_zone_device_register("acpitz", trips, 0, tz,  in acpi_thermal_register_thermal_zone()
835 						     tz->trips.passive.tsp*100,  in acpi_thermal_register_thermal_zone()
836 						     tz->polling_frequency*100);  in acpi_thermal_register_thermal_zone()
838 		tz->thermal_zone =  in acpi_thermal_register_thermal_zone()
839 			thermal_zone_device_register("acpitz", trips, 0, tz,  in acpi_thermal_register_thermal_zone()
841 						0, tz->polling_frequency*100);  in acpi_thermal_register_thermal_zone()
842 	if (IS_ERR(tz->thermal_zone))  in acpi_thermal_register_thermal_zone()
845 	result = sysfs_create_link(&tz->device->dev.kobj,  in acpi_thermal_register_thermal_zone()
846 				   &tz->thermal_zone->device.kobj, "thermal_zone");  in acpi_thermal_register_thermal_zone()
850 	result = sysfs_create_link(&tz->thermal_zone->device.kobj,  in acpi_thermal_register_thermal_zone()
851 				   &tz->device->dev.kobj, "device");  in acpi_thermal_register_thermal_zone()
855 	status =  acpi_bus_attach_private_data(tz->device->handle,  in acpi_thermal_register_thermal_zone()
856 					       tz->thermal_zone);  in acpi_thermal_register_thermal_zone()
862 	result = thermal_zone_device_enable(tz->thermal_zone);  in acpi_thermal_register_thermal_zone()
866 	dev_info(&tz->device->dev, "registered as thermal_zone%d\n",  in acpi_thermal_register_thermal_zone()
867 		 tz->thermal_zone->id);  in acpi_thermal_register_thermal_zone()
872 	acpi_bus_detach_private_data(tz->device->handle);  in acpi_thermal_register_thermal_zone()
874 	sysfs_remove_link(&tz->thermal_zone->device.kobj, "device");  in acpi_thermal_register_thermal_zone()
876 	sysfs_remove_link(&tz->device->dev.kobj, "thermal_zone");  in acpi_thermal_register_thermal_zone()
878 	thermal_zone_device_unregister(tz->thermal_zone);  in acpi_thermal_register_thermal_zone()
883 static void acpi_thermal_unregister_thermal_zone(struct acpi_thermal *tz)  in acpi_thermal_unregister_thermal_zone()  argument
885 	sysfs_remove_link(&tz->device->dev.kobj, "thermal_zone");  in acpi_thermal_unregister_thermal_zone()
886 	sysfs_remove_link(&tz->thermal_zone->device.kobj, "device");  in acpi_thermal_unregister_thermal_zone()
887 	thermal_zone_device_unregister(tz->thermal_zone);  in acpi_thermal_unregister_thermal_zone()
888 	tz->thermal_zone = NULL;  in acpi_thermal_unregister_thermal_zone()
889 	acpi_bus_detach_private_data(tz->device->handle);  in acpi_thermal_unregister_thermal_zone()
897 static void acpi_queue_thermal_check(struct acpi_thermal *tz)  in acpi_queue_thermal_check()  argument
899 	if (!work_pending(&tz->thermal_check_work))  in acpi_queue_thermal_check()
900 		queue_work(acpi_thermal_pm_queue, &tz->thermal_check_work);  in acpi_queue_thermal_check()
905 	struct acpi_thermal *tz = acpi_driver_data(device);  in acpi_thermal_notify()  local
908 	if (!tz)  in acpi_thermal_notify()
913 		acpi_queue_thermal_check(tz);  in acpi_thermal_notify()
916 		acpi_thermal_trips_update(tz, ACPI_TRIPS_REFRESH_THRESHOLDS);  in acpi_thermal_notify()
917 		acpi_queue_thermal_check(tz);  in acpi_thermal_notify()
922 		acpi_thermal_trips_update(tz, ACPI_TRIPS_REFRESH_DEVICES);  in acpi_thermal_notify()
923 		acpi_queue_thermal_check(tz);  in acpi_thermal_notify()
946 static void acpi_thermal_aml_dependency_fix(struct acpi_thermal *tz)  in acpi_thermal_aml_dependency_fix()  argument
948 	acpi_handle handle = tz->device->handle;  in acpi_thermal_aml_dependency_fix()
966 static int acpi_thermal_get_info(struct acpi_thermal *tz)  in acpi_thermal_get_info()  argument
971 	if (!tz)  in acpi_thermal_get_info()
974 	acpi_thermal_aml_dependency_fix(tz);  in acpi_thermal_get_info()
977 	result = acpi_thermal_get_trip_points(tz);  in acpi_thermal_get_info()
982 	result = acpi_thermal_get_temperature(tz);  in acpi_thermal_get_info()
987 	result = acpi_thermal_set_cooling_mode(tz, ACPI_THERMAL_MODE_ACTIVE);  in acpi_thermal_get_info()
989 		tz->flags.cooling_mode = 1;  in acpi_thermal_get_info()
993 		tz->polling_frequency = tzp;  in acpi_thermal_get_info()
995 		acpi_thermal_get_polling_frequency(tz);  in acpi_thermal_get_info()
1010 static void acpi_thermal_guess_offset(struct acpi_thermal *tz)  in acpi_thermal_guess_offset()  argument
1012 	if (tz->trips.critical.flags.valid &&  in acpi_thermal_guess_offset()
1013 	    (tz->trips.critical.temperature % 5) == 1)  in acpi_thermal_guess_offset()
1014 		tz->kelvin_offset = 273100;  in acpi_thermal_guess_offset()
1016 		tz->kelvin_offset = 273200;  in acpi_thermal_guess_offset()
1021 	struct acpi_thermal *tz = container_of(work, struct acpi_thermal,  in acpi_thermal_check_fn()  local
1032 	if (!refcount_dec_not_one(&tz->thermal_check_count))  in acpi_thermal_check_fn()
1035 	mutex_lock(&tz->thermal_check_lock);  in acpi_thermal_check_fn()
1037 	thermal_zone_device_update(tz->thermal_zone, THERMAL_EVENT_UNSPECIFIED);  in acpi_thermal_check_fn()
1039 	refcount_inc(&tz->thermal_check_count);  in acpi_thermal_check_fn()
1041 	mutex_unlock(&tz->thermal_check_lock);  in acpi_thermal_check_fn()
1047 	struct acpi_thermal *tz = NULL;  in acpi_thermal_add()  local
1053 	tz = kzalloc(sizeof(struct acpi_thermal), GFP_KERNEL);  in acpi_thermal_add()
1054 	if (!tz)  in acpi_thermal_add()
1057 	tz->device = device;  in acpi_thermal_add()
1058 	strcpy(tz->name, device->pnp.bus_id);  in acpi_thermal_add()
1061 	device->driver_data = tz;  in acpi_thermal_add()
1063 	result = acpi_thermal_get_info(tz);  in acpi_thermal_add()
1067 	acpi_thermal_guess_offset(tz);  in acpi_thermal_add()
1069 	result = acpi_thermal_register_thermal_zone(tz);  in acpi_thermal_add()
1073 	refcount_set(&tz->thermal_check_count, 3);  in acpi_thermal_add()
1074 	mutex_init(&tz->thermal_check_lock);  in acpi_thermal_add()
1075 	INIT_WORK(&tz->thermal_check_work, acpi_thermal_check_fn);  in acpi_thermal_add()
1078 		acpi_device_bid(device), deci_kelvin_to_celsius(tz->temperature));  in acpi_thermal_add()
1082 	kfree(tz);  in acpi_thermal_add()
1089 	struct acpi_thermal *tz = NULL;  in acpi_thermal_remove()  local
1095 	tz = acpi_driver_data(device);  in acpi_thermal_remove()
1097 	acpi_thermal_unregister_thermal_zone(tz);  in acpi_thermal_remove()
1098 	kfree(tz);  in acpi_thermal_remove()
1112 	struct acpi_thermal *tz;  in acpi_thermal_resume()  local
1118 	tz = acpi_driver_data(to_acpi_device(dev));  in acpi_thermal_resume()
1119 	if (!tz)  in acpi_thermal_resume()
1123 		if (!(&tz->trips.active[i]))  in acpi_thermal_resume()
1125 		if (!tz->trips.active[i].flags.valid)  in acpi_thermal_resume()
1127 		tz->trips.active[i].flags.enabled = 1;  in acpi_thermal_resume()
1128 		for (j = 0; j < tz->trips.active[i].devices.count; j++) {  in acpi_thermal_resume()
1130 					tz->trips.active[i].devices.handles[j],  in acpi_thermal_resume()
1133 				tz->trips.active[i].flags.enabled = 0;  in acpi_thermal_resume()
1137 		tz->state.active |= tz->trips.active[i].flags.enabled;  in acpi_thermal_resume()
1140 	acpi_queue_thermal_check(tz);  in acpi_thermal_resume()