65 #define ACPI_THERMAL_TRIPS_EXCEPTION(flags, tz, str) \  argument
68 		acpi_handle_info(tz->device->handle, \
141 static int acpi_thermal_get_temperature(struct acpi_thermal *tz)  in acpi_thermal_get_temperature()  argument
146 	if (!tz)  in acpi_thermal_get_temperature()
149 	tz->last_temperature = tz->temperature;  in acpi_thermal_get_temperature()
151 	status = acpi_evaluate_integer(tz->device->handle, "_TMP", NULL, &tmp);  in acpi_thermal_get_temperature()
155 	tz->temperature = tmp;  in acpi_thermal_get_temperature()
157 	acpi_handle_debug(tz->device->handle, "Temperature is %lu dK\n",  in acpi_thermal_get_temperature()
158 			  tz->temperature);  in acpi_thermal_get_temperature()
163 static int acpi_thermal_get_polling_frequency(struct acpi_thermal *tz)  in acpi_thermal_get_polling_frequency()  argument
168 	if (!tz)  in acpi_thermal_get_polling_frequency()
171 	status = acpi_evaluate_integer(tz->device->handle, "_TZP", NULL, &tmp);  in acpi_thermal_get_polling_frequency()
175 	tz->polling_frequency = tmp;  in acpi_thermal_get_polling_frequency()
176 	acpi_handle_debug(tz->device->handle, "Polling frequency is %lu dS\n",  in acpi_thermal_get_polling_frequency()
177 			  tz->polling_frequency);  in acpi_thermal_get_polling_frequency()
182 static int acpi_thermal_temp(struct acpi_thermal *tz, int temp_deci_k)  in acpi_thermal_temp()  argument
188 						       tz->kelvin_offset);  in acpi_thermal_temp()
191 static void __acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)  in __acpi_thermal_trips_update()  argument
201 		status = acpi_evaluate_integer(tz->device->handle, "_CRT", NULL, &tmp);  in __acpi_thermal_trips_update()
202 		tz->trips.critical.temperature = tmp;  in __acpi_thermal_trips_update()
210 			tz->trips.critical.valid = false;  in __acpi_thermal_trips_update()
211 			acpi_handle_debug(tz->device->handle,  in __acpi_thermal_trips_update()
215 			tz->trips.critical.valid = false;  in __acpi_thermal_trips_update()
217 			tz->trips.critical.valid = true;  in __acpi_thermal_trips_update()
218 			acpi_handle_debug(tz->device->handle,  in __acpi_thermal_trips_update()
220 					  tz->trips.critical.temperature);  in __acpi_thermal_trips_update()
222 		if (tz->trips.critical.valid) {  in __acpi_thermal_trips_update()
224 				tz->trips.critical.valid = false;  in __acpi_thermal_trips_update()
231 				if (crt_k > tz->trips.critical.temperature)  in __acpi_thermal_trips_update()
234 				tz->trips.critical.temperature = crt_k;  in __acpi_thermal_trips_update()
241 		status = acpi_evaluate_integer(tz->device->handle, "_HOT", NULL, &tmp);  in __acpi_thermal_trips_update()
243 			tz->trips.hot.valid = false;  in __acpi_thermal_trips_update()
244 			acpi_handle_debug(tz->device->handle,  in __acpi_thermal_trips_update()
247 			tz->trips.hot.temperature = tmp;  in __acpi_thermal_trips_update()
248 			tz->trips.hot.valid = true;  in __acpi_thermal_trips_update()
249 			acpi_handle_debug(tz->device->handle,  in __acpi_thermal_trips_update()
251 					  tz->trips.hot.temperature);  in __acpi_thermal_trips_update()
256 	if (((flag & ACPI_TRIPS_PASSIVE) && tz->trips.passive.trip.valid) ||  in __acpi_thermal_trips_update()
258 		valid = tz->trips.passive.trip.valid;  in __acpi_thermal_trips_update()
265 			status = acpi_evaluate_integer(tz->device->handle,  in __acpi_thermal_trips_update()
270 			tz->trips.passive.trip.valid = false;  in __acpi_thermal_trips_update()
272 			tz->trips.passive.trip.temperature = tmp;  in __acpi_thermal_trips_update()
273 			tz->trips.passive.trip.valid = true;  in __acpi_thermal_trips_update()
275 				status = acpi_evaluate_integer(tz->device->handle,  in __acpi_thermal_trips_update()
278 					tz->trips.passive.trip.valid = false;  in __acpi_thermal_trips_update()
280 					tz->trips.passive.tc1 = tmp;  in __acpi_thermal_trips_update()
282 				status = acpi_evaluate_integer(tz->device->handle,  in __acpi_thermal_trips_update()
285 					tz->trips.passive.trip.valid = false;  in __acpi_thermal_trips_update()
287 					tz->trips.passive.tc2 = tmp;  in __acpi_thermal_trips_update()
289 				status = acpi_evaluate_integer(tz->device->handle,  in __acpi_thermal_trips_update()
292 					tz->trips.passive.trip.valid = false;  in __acpi_thermal_trips_update()
294 					tz->trips.passive.tsp = tmp;  in __acpi_thermal_trips_update()
298 	if ((flag & ACPI_TRIPS_DEVICES) && tz->trips.passive.trip.valid) {  in __acpi_thermal_trips_update()
300 		status = acpi_evaluate_reference(tz->device->handle, "_PSL",  in __acpi_thermal_trips_update()
303 			acpi_handle_info(tz->device->handle,  in __acpi_thermal_trips_update()
305 			tz->trips.passive.trip.valid = false;  in __acpi_thermal_trips_update()
307 			tz->trips.passive.trip.valid = true;  in __acpi_thermal_trips_update()
310 		if (memcmp(&tz->trips.passive.devices, &devices,  in __acpi_thermal_trips_update()
312 			memcpy(&tz->trips.passive.devices, &devices,  in __acpi_thermal_trips_update()
314 			ACPI_THERMAL_TRIPS_EXCEPTION(flag, tz, "device");  in __acpi_thermal_trips_update()
318 		if (valid != tz->trips.passive.trip.valid)  in __acpi_thermal_trips_update()
319 			ACPI_THERMAL_TRIPS_EXCEPTION(flag, tz, "state");  in __acpi_thermal_trips_update()
325 		valid = tz->trips.active[i].trip.valid;  in __acpi_thermal_trips_update()
331 		    tz->trips.active[i].trip.valid)) {  in __acpi_thermal_trips_update()
332 			status = acpi_evaluate_integer(tz->device->handle,  in __acpi_thermal_trips_update()
335 				tz->trips.active[i].trip.valid = false;  in __acpi_thermal_trips_update()
343 					tz->trips.active[0].trip.temperature =  in __acpi_thermal_trips_update()
350 					tz->trips.active[i-1].trip.temperature =  in __acpi_thermal_trips_update()
352 						      tz->trips.active[i-2].trip.temperature,  in __acpi_thermal_trips_update()
357 				tz->trips.active[i].trip.temperature = tmp;  in __acpi_thermal_trips_update()
358 				tz->trips.active[i].trip.valid = true;  in __acpi_thermal_trips_update()
363 		if ((flag & ACPI_TRIPS_DEVICES) && tz->trips.active[i].trip.valid) {  in __acpi_thermal_trips_update()
365 			status = acpi_evaluate_reference(tz->device->handle,  in __acpi_thermal_trips_update()
368 				acpi_handle_info(tz->device->handle,  in __acpi_thermal_trips_update()
370 				tz->trips.active[i].trip.valid = false;  in __acpi_thermal_trips_update()
372 				tz->trips.active[i].trip.valid = true;  in __acpi_thermal_trips_update()
375 			if (memcmp(&tz->trips.active[i].devices, &devices,  in __acpi_thermal_trips_update()
377 				memcpy(&tz->trips.active[i].devices, &devices,  in __acpi_thermal_trips_update()
379 				ACPI_THERMAL_TRIPS_EXCEPTION(flag, tz, "device");  in __acpi_thermal_trips_update()
383 			if (valid != tz->trips.active[i].trip.valid)  in __acpi_thermal_trips_update()
384 				ACPI_THERMAL_TRIPS_EXCEPTION(flag, tz, "state");  in __acpi_thermal_trips_update()
386 		if (!tz->trips.active[i].trip.valid)  in __acpi_thermal_trips_update()
392 		status = acpi_evaluate_reference(tz->device->handle, "_TZD",  in __acpi_thermal_trips_update()
395 		    memcmp(&tz->devices, &devices, sizeof(devices))) {  in __acpi_thermal_trips_update()
396 			tz->devices = devices;  in __acpi_thermal_trips_update()
397 			ACPI_THERMAL_TRIPS_EXCEPTION(flag, tz, "device");  in __acpi_thermal_trips_update()
405 	struct acpi_thermal *tz = data;  in acpi_thermal_adjust_trip()  local
411 		trip->temperature = acpi_thermal_temp(tz, acpi_trip->temperature);  in acpi_thermal_adjust_trip()
421 	struct acpi_thermal *tz = thermal_zone_device_priv(thermal);  in acpi_thermal_adjust_thermal_zone()  local
425 	__acpi_thermal_trips_update(tz, flag);  in acpi_thermal_adjust_thermal_zone()
427 	for_each_thermal_trip(tz->thermal_zone, acpi_thermal_adjust_trip, tz);  in acpi_thermal_adjust_thermal_zone()
430 static void acpi_queue_thermal_check(struct acpi_thermal *tz)  in acpi_queue_thermal_check()  argument
432 	if (!work_pending(&tz->thermal_check_work))  in acpi_queue_thermal_check()
433 		queue_work(acpi_thermal_pm_queue, &tz->thermal_check_work);  in acpi_queue_thermal_check()
436 static void acpi_thermal_trips_update(struct acpi_thermal *tz, u32 event)  in acpi_thermal_trips_update()  argument
438 	struct acpi_device *adev = tz->device;  in acpi_thermal_trips_update()
447 	thermal_zone_device_exec(tz->thermal_zone,  in acpi_thermal_trips_update()
449 	acpi_queue_thermal_check(tz);  in acpi_thermal_trips_update()
454 static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)  in acpi_thermal_get_trip_points()  argument
459 	__acpi_thermal_trips_update(tz, ACPI_TRIPS_INIT);  in acpi_thermal_get_trip_points()
461 	valid = tz->trips.critical.valid |  in acpi_thermal_get_trip_points()
462 		tz->trips.hot.valid |  in acpi_thermal_get_trip_points()
463 		tz->trips.passive.trip.valid;  in acpi_thermal_get_trip_points()
466 		valid = valid || tz->trips.active[i].trip.valid;  in acpi_thermal_get_trip_points()
479 	struct acpi_thermal *tz = thermal_zone_device_priv(thermal);  in thermal_get_temp()  local
482 	if (!tz)  in thermal_get_temp()
485 	result = acpi_thermal_get_temperature(tz);  in thermal_get_temp()
489 	*temp = deci_kelvin_to_millicelsius_with_offset(tz->temperature,  in thermal_get_temp()
490 							tz->kelvin_offset);  in thermal_get_temp()
498 	struct acpi_thermal *tz = thermal_zone_device_priv(thermal);  in thermal_get_trend()  local
502 	if (!tz || !trip)  in thermal_get_trend()
511 		t = tz->trips.passive.tc1 * (tz->temperature -  in thermal_get_trend()
512 						tz->last_temperature) +  in thermal_get_trend()
513 			tz->trips.passive.tc2 * (tz->temperature -  in thermal_get_trend()
525 		t = acpi_thermal_temp(tz, tz->temperature);  in thermal_get_trend()
542 	struct acpi_thermal *tz = thermal_zone_device_priv(thermal);  in acpi_thermal_zone_device_hot()  local
544 	acpi_bus_generate_netlink_event(tz->device->pnp.device_class,  in acpi_thermal_zone_device_hot()
545 					dev_name(&tz->device->dev),  in acpi_thermal_zone_device_hot()
551 	struct acpi_thermal *tz = thermal_zone_device_priv(thermal);  in acpi_thermal_zone_device_critical()  local
553 	acpi_bus_generate_netlink_event(tz->device->pnp.device_class,  in acpi_thermal_zone_device_critical()
554 					dev_name(&tz->device->dev),  in acpi_thermal_zone_device_critical()
565 	struct acpi_thermal *tz = thermal_zone_device_priv(thermal);  in acpi_thermal_cooling_device_cb()  local
573 	if (tz->trips.critical.valid)  in acpi_thermal_cooling_device_cb()
576 	if (tz->trips.hot.valid)  in acpi_thermal_cooling_device_cb()
579 	if (tz->trips.passive.trip.valid) {  in acpi_thermal_cooling_device_cb()
581 		for (i = 0; i < tz->trips.passive.devices.count; i++) {  in acpi_thermal_cooling_device_cb()
582 			handle = tz->trips.passive.devices.handles[i];  in acpi_thermal_cooling_device_cb()
604 		if (!tz->trips.active[i].trip.valid)  in acpi_thermal_cooling_device_cb()
608 		for (j = 0; j < tz->trips.active[i].devices.count; j++) {  in acpi_thermal_cooling_device_cb()
609 			handle = tz->trips.active[i].devices.handles[j];  in acpi_thermal_cooling_device_cb()
656 static int acpi_thermal_zone_sysfs_add(struct acpi_thermal *tz)  in acpi_thermal_zone_sysfs_add()  argument
658 	struct device *tzdev = thermal_zone_device(tz->thermal_zone);  in acpi_thermal_zone_sysfs_add()
661 	ret = sysfs_create_link(&tz->device->dev.kobj,  in acpi_thermal_zone_sysfs_add()
667 				   &tz->device->dev.kobj, "device");  in acpi_thermal_zone_sysfs_add()
669 		sysfs_remove_link(&tz->device->dev.kobj, "thermal_zone");  in acpi_thermal_zone_sysfs_add()
674 static void acpi_thermal_zone_sysfs_remove(struct acpi_thermal *tz)  in acpi_thermal_zone_sysfs_remove()  argument
676 	struct device *tzdev = thermal_zone_device(tz->thermal_zone);  in acpi_thermal_zone_sysfs_remove()
678 	sysfs_remove_link(&tz->device->dev.kobj, "thermal_zone");  in acpi_thermal_zone_sysfs_remove()
682 static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)  in acpi_thermal_register_thermal_zone()  argument
691 	if (tz->trips.critical.valid)  in acpi_thermal_register_thermal_zone()
694 	if (tz->trips.hot.valid)  in acpi_thermal_register_thermal_zone()
697 	if (tz->trips.passive.trip.valid) {  in acpi_thermal_register_thermal_zone()
699 		passive_delay = tz->trips.passive.tsp * 100;  in acpi_thermal_register_thermal_zone()
702 	for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE && tz->trips.active[i].trip.valid; i++)  in acpi_thermal_register_thermal_zone()
709 	tz->trip_table = trip;  in acpi_thermal_register_thermal_zone()
711 	if (tz->trips.critical.valid) {  in acpi_thermal_register_thermal_zone()
713 		trip->temperature = acpi_thermal_temp(tz, tz->trips.critical.temperature);  in acpi_thermal_register_thermal_zone()
717 	if (tz->trips.hot.valid) {  in acpi_thermal_register_thermal_zone()
719 		trip->temperature = acpi_thermal_temp(tz, tz->trips.hot.temperature);  in acpi_thermal_register_thermal_zone()
723 	acpi_trip = &tz->trips.passive.trip;  in acpi_thermal_register_thermal_zone()
726 		trip->temperature = acpi_thermal_temp(tz, acpi_trip->temperature);  in acpi_thermal_register_thermal_zone()
732 		acpi_trip = &tz->trips.active[i].trip;  in acpi_thermal_register_thermal_zone()
738 		trip->temperature = acpi_thermal_temp(tz, acpi_trip->temperature);  in acpi_thermal_register_thermal_zone()
743 	tz->thermal_zone = thermal_zone_device_register_with_trips("acpitz",  in acpi_thermal_register_thermal_zone()
744 								   tz->trip_table,  in acpi_thermal_register_thermal_zone()
746 								   0, tz,  in acpi_thermal_register_thermal_zone()
750 								   tz->polling_frequency * 100);  in acpi_thermal_register_thermal_zone()
751 	if (IS_ERR(tz->thermal_zone)) {  in acpi_thermal_register_thermal_zone()
752 		result = PTR_ERR(tz->thermal_zone);  in acpi_thermal_register_thermal_zone()
756 	result = acpi_thermal_zone_sysfs_add(tz);  in acpi_thermal_register_thermal_zone()
760 	result = thermal_zone_device_enable(tz->thermal_zone);  in acpi_thermal_register_thermal_zone()
764 	dev_info(&tz->device->dev, "registered as thermal_zone%d\n",  in acpi_thermal_register_thermal_zone()
765 		 thermal_zone_device_id(tz->thermal_zone));  in acpi_thermal_register_thermal_zone()
770 	acpi_thermal_zone_sysfs_remove(tz);  in acpi_thermal_register_thermal_zone()
772 	thermal_zone_device_unregister(tz->thermal_zone);  in acpi_thermal_register_thermal_zone()
774 	kfree(tz->trip_table);  in acpi_thermal_register_thermal_zone()
779 static void acpi_thermal_unregister_thermal_zone(struct acpi_thermal *tz)  in acpi_thermal_unregister_thermal_zone()  argument
781 	thermal_zone_device_disable(tz->thermal_zone);  in acpi_thermal_unregister_thermal_zone()
782 	acpi_thermal_zone_sysfs_remove(tz);  in acpi_thermal_unregister_thermal_zone()
783 	thermal_zone_device_unregister(tz->thermal_zone);  in acpi_thermal_unregister_thermal_zone()
784 	tz->thermal_zone = NULL;  in acpi_thermal_unregister_thermal_zone()
795 	struct acpi_thermal *tz = acpi_driver_data(device);  in acpi_thermal_notify()  local
797 	if (!tz)  in acpi_thermal_notify()
802 		acpi_queue_thermal_check(tz);  in acpi_thermal_notify()
806 		acpi_thermal_trips_update(tz, event);  in acpi_thermal_notify()
827 static void acpi_thermal_aml_dependency_fix(struct acpi_thermal *tz)  in acpi_thermal_aml_dependency_fix()  argument
829 	acpi_handle handle = tz->device->handle;  in acpi_thermal_aml_dependency_fix()
847 static int acpi_thermal_get_info(struct acpi_thermal *tz)  in acpi_thermal_get_info()  argument
851 	if (!tz)  in acpi_thermal_get_info()
854 	acpi_thermal_aml_dependency_fix(tz);  in acpi_thermal_get_info()
857 	result = acpi_thermal_get_trip_points(tz);  in acpi_thermal_get_info()
862 	result = acpi_thermal_get_temperature(tz);  in acpi_thermal_get_info()
867 	acpi_execute_simple_method(tz->device->handle, "_SCP",  in acpi_thermal_get_info()
872 		tz->polling_frequency = tzp;  in acpi_thermal_get_info()
874 		acpi_thermal_get_polling_frequency(tz);  in acpi_thermal_get_info()
889 static void acpi_thermal_guess_offset(struct acpi_thermal *tz)  in acpi_thermal_guess_offset()  argument
891 	if (tz->trips.critical.valid &&  in acpi_thermal_guess_offset()
892 	    (tz->trips.critical.temperature % 5) == 1)  in acpi_thermal_guess_offset()
893 		tz->kelvin_offset = 273100;  in acpi_thermal_guess_offset()
895 		tz->kelvin_offset = 273200;  in acpi_thermal_guess_offset()
900 	struct acpi_thermal *tz = container_of(work, struct acpi_thermal,  in acpi_thermal_check_fn()  local
911 	if (!refcount_dec_not_one(&tz->thermal_check_count))  in acpi_thermal_check_fn()
914 	mutex_lock(&tz->thermal_check_lock);  in acpi_thermal_check_fn()
916 	thermal_zone_device_update(tz->thermal_zone, THERMAL_EVENT_UNSPECIFIED);  in acpi_thermal_check_fn()
918 	refcount_inc(&tz->thermal_check_count);  in acpi_thermal_check_fn()
920 	mutex_unlock(&tz->thermal_check_lock);  in acpi_thermal_check_fn()
925 	struct acpi_thermal *tz;  in acpi_thermal_add()  local
931 	tz = kzalloc(sizeof(struct acpi_thermal), GFP_KERNEL);  in acpi_thermal_add()
932 	if (!tz)  in acpi_thermal_add()
935 	tz->device = device;  in acpi_thermal_add()
936 	strcpy(tz->name, device->pnp.bus_id);  in acpi_thermal_add()
939 	device->driver_data = tz;  in acpi_thermal_add()
941 	result = acpi_thermal_get_info(tz);  in acpi_thermal_add()
945 	acpi_thermal_guess_offset(tz);  in acpi_thermal_add()
947 	result = acpi_thermal_register_thermal_zone(tz);  in acpi_thermal_add()
951 	refcount_set(&tz->thermal_check_count, 3);  in acpi_thermal_add()
952 	mutex_init(&tz->thermal_check_lock);  in acpi_thermal_add()
953 	INIT_WORK(&tz->thermal_check_work, acpi_thermal_check_fn);  in acpi_thermal_add()
956 		acpi_device_bid(device), deci_kelvin_to_celsius(tz->temperature));  in acpi_thermal_add()
967 	acpi_thermal_unregister_thermal_zone(tz);  in acpi_thermal_add()
969 	kfree(tz);  in acpi_thermal_add()
976 	struct acpi_thermal *tz;  in acpi_thermal_remove()  local
981 	tz = acpi_driver_data(device);  in acpi_thermal_remove()
987 	acpi_thermal_unregister_thermal_zone(tz);  in acpi_thermal_remove()
988 	kfree(tz->trip_table);  in acpi_thermal_remove()
989 	kfree(tz);  in acpi_thermal_remove()
1002 	struct acpi_thermal *tz;  in acpi_thermal_resume()  local
1008 	tz = acpi_driver_data(to_acpi_device(dev));  in acpi_thermal_resume()
1009 	if (!tz)  in acpi_thermal_resume()
1013 		if (!tz->trips.active[i].trip.valid)  in acpi_thermal_resume()
1016 		for (j = 0; j < tz->trips.active[i].devices.count; j++) {  in acpi_thermal_resume()
1017 			acpi_bus_update_power(tz->trips.active[i].devices.handles[j],  in acpi_thermal_resume()
1022 	acpi_queue_thermal_check(tz);  in acpi_thermal_resume()