61 	struct acpi_power_resource *resource;  member
95 	struct acpi_power_resource *resource = acpi_power_get_context(handle);  in acpi_power_resources_list_add()  local
98 	if (!resource || !list)  in acpi_power_resources_list_add()
105 	entry->resource = resource;  in acpi_power_resources_list_add()
110 			if (e->resource->order > resource->order) {  in acpi_power_resources_list_add()
205 static int acpi_power_get_state(struct acpi_power_resource *resource, u8 *state)  in acpi_power_get_state()  argument
207 	if (resource->state == ACPI_POWER_RESOURCE_STATE_UNKNOWN) {  in acpi_power_get_state()
210 		ret = __get_state(resource->device.handle, &resource->state);  in acpi_power_get_state()
215 	*state = resource->state;  in acpi_power_get_state()
229 		struct acpi_power_resource *resource = entry->resource;  in acpi_power_get_list_state()  local
232 		mutex_lock(&resource->resource_lock);  in acpi_power_get_list_state()
233 		result = acpi_power_get_state(resource, &cur_state);  in acpi_power_get_list_state()
234 		mutex_unlock(&resource->resource_lock);  in acpi_power_get_list_state()
249 acpi_power_resource_add_dependent(struct acpi_power_resource *resource,  in acpi_power_resource_add_dependent()  argument
255 	mutex_lock(&resource->resource_lock);  in acpi_power_resource_add_dependent()
256 	list_for_each_entry(dep, &resource->dependents, node) {  in acpi_power_resource_add_dependent()
269 	list_add_tail(&dep->node, &resource->dependents);  in acpi_power_resource_add_dependent()
271 		resource_dev_name(resource));  in acpi_power_resource_add_dependent()
274 	mutex_unlock(&resource->resource_lock);  in acpi_power_resource_add_dependent()
279 acpi_power_resource_remove_dependent(struct acpi_power_resource *resource,  in acpi_power_resource_remove_dependent()  argument
284 	mutex_lock(&resource->resource_lock);  in acpi_power_resource_remove_dependent()
285 	list_for_each_entry(dep, &resource->dependents, node) {  in acpi_power_resource_remove_dependent()
290 				resource_dev_name(resource));  in acpi_power_resource_remove_dependent()
294 	mutex_unlock(&resource->resource_lock);  in acpi_power_resource_remove_dependent()
324 		ret = acpi_power_resource_add_dependent(entry->resource, dev);  in acpi_device_power_add_dependent()
333 		acpi_power_resource_remove_dependent(entry->resource, dev);  in acpi_device_power_add_dependent()
358 		acpi_power_resource_remove_dependent(entry->resource, dev);  in acpi_device_power_remove_dependent()
361 static int __acpi_power_on(struct acpi_power_resource *resource)  in __acpi_power_on()  argument
363 	acpi_handle handle = resource->device.handle;  in __acpi_power_on()
369 		resource->state = ACPI_POWER_RESOURCE_STATE_UNKNOWN;  in __acpi_power_on()
373 	resource->state = ACPI_POWER_RESOURCE_STATE_ON;  in __acpi_power_on()
382 	if (list_empty(&resource->dependents) ||  in __acpi_power_on()
383 	    list_is_singular(&resource->dependents))  in __acpi_power_on()
386 	list_for_each_entry(dep, &resource->dependents, node) {  in __acpi_power_on()
388 			resource_dev_name(resource));  in __acpi_power_on()
395 static int acpi_power_on_unlocked(struct acpi_power_resource *resource)  in acpi_power_on_unlocked()  argument
399 	if (resource->ref_count++) {  in acpi_power_on_unlocked()
400 		acpi_handle_debug(resource->device.handle,  in acpi_power_on_unlocked()
403 		result = __acpi_power_on(resource);  in acpi_power_on_unlocked()
405 			resource->ref_count--;  in acpi_power_on_unlocked()
410 static int acpi_power_on(struct acpi_power_resource *resource)  in acpi_power_on()  argument
414 	mutex_lock(&resource->resource_lock);  in acpi_power_on()
415 	result = acpi_power_on_unlocked(resource);  in acpi_power_on()
416 	mutex_unlock(&resource->resource_lock);  in acpi_power_on()
420 static int __acpi_power_off(struct acpi_power_resource *resource)  in __acpi_power_off()  argument
422 	acpi_handle handle = resource->device.handle;  in __acpi_power_off()
427 		resource->state = ACPI_POWER_RESOURCE_STATE_UNKNOWN;  in __acpi_power_off()
431 	resource->state = ACPI_POWER_RESOURCE_STATE_OFF;  in __acpi_power_off()
438 static int acpi_power_off_unlocked(struct acpi_power_resource *resource)  in acpi_power_off_unlocked()  argument
442 	if (!resource->ref_count) {  in acpi_power_off_unlocked()
443 		acpi_handle_debug(resource->device.handle,  in acpi_power_off_unlocked()
448 	if (--resource->ref_count) {  in acpi_power_off_unlocked()
449 		acpi_handle_debug(resource->device.handle,  in acpi_power_off_unlocked()
452 		result = __acpi_power_off(resource);  in acpi_power_off_unlocked()
454 			resource->ref_count++;  in acpi_power_off_unlocked()
459 static int acpi_power_off(struct acpi_power_resource *resource)  in acpi_power_off()  argument
463 	mutex_lock(&resource->resource_lock);  in acpi_power_off()
464 	result = acpi_power_off_unlocked(resource);  in acpi_power_off()
465 	mutex_unlock(&resource->resource_lock);  in acpi_power_off()
475 		result = acpi_power_off(entry->resource);  in acpi_power_off_list()
483 		acpi_power_on(entry->resource);  in acpi_power_off_list()
494 		result = acpi_power_on(entry->resource);  in acpi_power_on_list()
502 		acpi_power_off(entry->resource);  in acpi_power_on_list()
545 		struct acpi_device *res_dev = &entry->resource->device;  in acpi_power_hide_list()
569 		struct acpi_device *res_dev = &entry->resource->device;  in acpi_power_expose_list()
616 		struct acpi_power_resource *resource = entry->resource;  in acpi_power_wakeup_list_init()  local
619 		mutex_lock(&resource->resource_lock);  in acpi_power_wakeup_list_init()
625 		if (!resource->ref_count &&  in acpi_power_wakeup_list_init()
626 		    !acpi_power_get_state(resource, &state) &&  in acpi_power_wakeup_list_init()
628 			__acpi_power_off(resource);  in acpi_power_wakeup_list_init()
630 		if (system_level > resource->system_level)  in acpi_power_wakeup_list_init()
631 			system_level = resource->system_level;  in acpi_power_wakeup_list_init()
633 		mutex_unlock(&resource->resource_lock);  in acpi_power_wakeup_list_init()
787 		ret = acpi_power_off(entry->resource);  in acpi_disable_wakeup_device_power()
882 	struct acpi_power_resource *resource;  in acpi_release_power_resource()  local
884 	resource = container_of(device, struct acpi_power_resource, device);  in acpi_release_power_resource()
887 	list_del(&resource->list_node);  in acpi_release_power_resource()
891 	kfree(resource);  in acpi_release_power_resource()
898 	struct acpi_power_resource *resource;  in resource_in_use_show()  local
900 	resource = to_power_resource(to_acpi_device(dev));  in resource_in_use_show()
901 	return sprintf(buf, "%u\n", !!resource->ref_count);  in resource_in_use_show()
910 static void acpi_power_add_resource_to_list(struct acpi_power_resource *resource)  in acpi_power_add_resource_to_list()  argument
918 			if (r->order > resource->order) {  in acpi_power_add_resource_to_list()
919 				list_add_tail(&resource->list_node, &r->list_node);  in acpi_power_add_resource_to_list()
923 	list_add_tail(&resource->list_node, &acpi_power_resource_list);  in acpi_power_add_resource_to_list()
932 	struct acpi_power_resource *resource;  in acpi_add_power_resource()  local
942 	resource = kzalloc(sizeof(*resource), GFP_KERNEL);  in acpi_add_power_resource()
943 	if (!resource)  in acpi_add_power_resource()
946 	device = &resource->device;  in acpi_add_power_resource()
949 	mutex_init(&resource->resource_lock);  in acpi_add_power_resource()
950 	INIT_LIST_HEAD(&resource->list_node);  in acpi_add_power_resource()
951 	INIT_LIST_HEAD(&resource->dependents);  in acpi_add_power_resource()
962 	resource->system_level = acpi_object.power_resource.system_level;  in acpi_add_power_resource()
963 	resource->order = acpi_object.power_resource.resource_order;  in acpi_add_power_resource()
964 	resource->state = ACPI_POWER_RESOURCE_STATE_UNKNOWN;  in acpi_add_power_resource()
967 	if (acpi_power_get_state(resource, &state_dummy))  in acpi_add_power_resource()
968 		__acpi_power_on(resource);  in acpi_add_power_resource()
983 	acpi_power_add_resource_to_list(resource);  in acpi_add_power_resource()
995 	struct acpi_power_resource *resource;  in acpi_resume_power_resources()  local
999 	list_for_each_entry(resource, &acpi_power_resource_list, list_node) {  in acpi_resume_power_resources()
1003 		mutex_lock(&resource->resource_lock);  in acpi_resume_power_resources()
1005 		resource->state = ACPI_POWER_RESOURCE_STATE_UNKNOWN;  in acpi_resume_power_resources()
1006 		result = acpi_power_get_state(resource, &state);  in acpi_resume_power_resources()
1008 			mutex_unlock(&resource->resource_lock);  in acpi_resume_power_resources()
1013 		    && resource->ref_count) {  in acpi_resume_power_resources()
1014 			acpi_handle_debug(resource->device.handle, "Turning ON\n");  in acpi_resume_power_resources()
1015 			__acpi_power_on(resource);  in acpi_resume_power_resources()
1018 		mutex_unlock(&resource->resource_lock);  in acpi_resume_power_resources()
1030 	struct acpi_power_resource *resource;  in acpi_turn_off_unused_power_resources()  local
1034 	list_for_each_entry_reverse(resource, &acpi_power_resource_list, list_node) {  in acpi_turn_off_unused_power_resources()
1035 		mutex_lock(&resource->resource_lock);  in acpi_turn_off_unused_power_resources()
1037 		if (!resource->ref_count &&  in acpi_turn_off_unused_power_resources()
1038 		    resource->state == ACPI_POWER_RESOURCE_STATE_ON) {  in acpi_turn_off_unused_power_resources()
1039 			acpi_handle_debug(resource->device.handle, "Turning OFF\n");  in acpi_turn_off_unused_power_resources()
1040 			__acpi_power_off(resource);  in acpi_turn_off_unused_power_resources()
1043 		mutex_unlock(&resource->resource_lock);  in acpi_turn_off_unused_power_resources()