62 	struct acpi_power_resource *resource;  member
96 	struct acpi_power_resource *resource = acpi_power_get_context(handle);  in acpi_power_resources_list_add()  local
99 	if (!resource || !list)  in acpi_power_resources_list_add()
106 	entry->resource = resource;  in acpi_power_resources_list_add()
111 			if (e->resource->order > resource->order) {  in acpi_power_resources_list_add()
206 static int acpi_power_get_state(struct acpi_power_resource *resource, u8 *state)  in acpi_power_get_state()  argument
208 	if (resource->state == ACPI_POWER_RESOURCE_STATE_UNKNOWN) {  in acpi_power_get_state()
211 		ret = __get_state(resource->device.handle, &resource->state);  in acpi_power_get_state()
216 	*state = resource->state;  in acpi_power_get_state()
230 		struct acpi_power_resource *resource = entry->resource;  in acpi_power_get_list_state()  local
233 		mutex_lock(&resource->resource_lock);  in acpi_power_get_list_state()
234 		result = acpi_power_get_state(resource, &cur_state);  in acpi_power_get_list_state()
235 		mutex_unlock(&resource->resource_lock);  in acpi_power_get_list_state()
250 acpi_power_resource_add_dependent(struct acpi_power_resource *resource,  in acpi_power_resource_add_dependent()  argument
256 	mutex_lock(&resource->resource_lock);  in acpi_power_resource_add_dependent()
257 	list_for_each_entry(dep, &resource->dependents, node) {  in acpi_power_resource_add_dependent()
270 	list_add_tail(&dep->node, &resource->dependents);  in acpi_power_resource_add_dependent()
272 		resource_dev_name(resource));  in acpi_power_resource_add_dependent()
275 	mutex_unlock(&resource->resource_lock);  in acpi_power_resource_add_dependent()
280 acpi_power_resource_remove_dependent(struct acpi_power_resource *resource,  in acpi_power_resource_remove_dependent()  argument
285 	mutex_lock(&resource->resource_lock);  in acpi_power_resource_remove_dependent()
286 	list_for_each_entry(dep, &resource->dependents, node) {  in acpi_power_resource_remove_dependent()
291 				resource_dev_name(resource));  in acpi_power_resource_remove_dependent()
295 	mutex_unlock(&resource->resource_lock);  in acpi_power_resource_remove_dependent()
325 		ret = acpi_power_resource_add_dependent(entry->resource, dev);  in acpi_device_power_add_dependent()
334 		acpi_power_resource_remove_dependent(entry->resource, dev);  in acpi_device_power_add_dependent()
359 		acpi_power_resource_remove_dependent(entry->resource, dev);  in acpi_device_power_remove_dependent()
362 static int __acpi_power_on(struct acpi_power_resource *resource)  in __acpi_power_on()  argument
364 	acpi_handle handle = resource->device.handle;  in __acpi_power_on()
370 		resource->state = ACPI_POWER_RESOURCE_STATE_UNKNOWN;  in __acpi_power_on()
374 	resource->state = ACPI_POWER_RESOURCE_STATE_ON;  in __acpi_power_on()
383 	if (list_empty(&resource->dependents) ||  in __acpi_power_on()
384 	    list_is_singular(&resource->dependents))  in __acpi_power_on()
387 	list_for_each_entry(dep, &resource->dependents, node) {  in __acpi_power_on()
389 			resource_dev_name(resource));  in __acpi_power_on()
396 static int acpi_power_on_unlocked(struct acpi_power_resource *resource)  in acpi_power_on_unlocked()  argument
400 	if (resource->ref_count++) {  in acpi_power_on_unlocked()
401 		acpi_handle_debug(resource->device.handle,  in acpi_power_on_unlocked()
404 		result = __acpi_power_on(resource);  in acpi_power_on_unlocked()
406 			resource->ref_count--;  in acpi_power_on_unlocked()
411 static int acpi_power_on(struct acpi_power_resource *resource)  in acpi_power_on()  argument
415 	mutex_lock(&resource->resource_lock);  in acpi_power_on()
416 	result = acpi_power_on_unlocked(resource);  in acpi_power_on()
417 	mutex_unlock(&resource->resource_lock);  in acpi_power_on()
421 static int __acpi_power_off(struct acpi_power_resource *resource)  in __acpi_power_off()  argument
423 	acpi_handle handle = resource->device.handle;  in __acpi_power_off()
428 		resource->state = ACPI_POWER_RESOURCE_STATE_UNKNOWN;  in __acpi_power_off()
432 	resource->state = ACPI_POWER_RESOURCE_STATE_OFF;  in __acpi_power_off()
439 static int acpi_power_off_unlocked(struct acpi_power_resource *resource)  in acpi_power_off_unlocked()  argument
443 	if (!resource->ref_count) {  in acpi_power_off_unlocked()
444 		acpi_handle_debug(resource->device.handle,  in acpi_power_off_unlocked()
449 	if (--resource->ref_count) {  in acpi_power_off_unlocked()
450 		acpi_handle_debug(resource->device.handle,  in acpi_power_off_unlocked()
453 		result = __acpi_power_off(resource);  in acpi_power_off_unlocked()
455 			resource->ref_count++;  in acpi_power_off_unlocked()
460 static int acpi_power_off(struct acpi_power_resource *resource)  in acpi_power_off()  argument
464 	mutex_lock(&resource->resource_lock);  in acpi_power_off()
465 	result = acpi_power_off_unlocked(resource);  in acpi_power_off()
466 	mutex_unlock(&resource->resource_lock);  in acpi_power_off()
476 		result = acpi_power_off(entry->resource);  in acpi_power_off_list()
484 		acpi_power_on(entry->resource);  in acpi_power_off_list()
495 		result = acpi_power_on(entry->resource);  in acpi_power_on_list()
503 		acpi_power_off(entry->resource);  in acpi_power_on_list()
546 		struct acpi_device *res_dev = &entry->resource->device;  in acpi_power_hide_list()
570 		struct acpi_device *res_dev = &entry->resource->device;  in acpi_power_expose_list()
617 		struct acpi_power_resource *resource = entry->resource;  in acpi_power_wakeup_list_init()  local
620 		mutex_lock(&resource->resource_lock);  in acpi_power_wakeup_list_init()
626 		if (!resource->ref_count &&  in acpi_power_wakeup_list_init()
627 		    !acpi_power_get_state(resource, &state) &&  in acpi_power_wakeup_list_init()
629 			__acpi_power_off(resource);  in acpi_power_wakeup_list_init()
631 		if (system_level > resource->system_level)  in acpi_power_wakeup_list_init()
632 			system_level = resource->system_level;  in acpi_power_wakeup_list_init()
634 		mutex_unlock(&resource->resource_lock);  in acpi_power_wakeup_list_init()
788 		ret = acpi_power_off(entry->resource);  in acpi_disable_wakeup_device_power()
883 	struct acpi_power_resource *resource;  in acpi_release_power_resource()  local
885 	resource = container_of(device, struct acpi_power_resource, device);  in acpi_release_power_resource()
888 	list_del(&resource->list_node);  in acpi_release_power_resource()
892 	kfree(resource);  in acpi_release_power_resource()
899 	struct acpi_power_resource *resource;  in resource_in_use_show()  local
901 	resource = to_power_resource(to_acpi_device(dev));  in resource_in_use_show()
902 	return sprintf(buf, "%u\n", !!resource->ref_count);  in resource_in_use_show()
911 static void acpi_power_add_resource_to_list(struct acpi_power_resource *resource)  in acpi_power_add_resource_to_list()  argument
919 			if (r->order > resource->order) {  in acpi_power_add_resource_to_list()
920 				list_add_tail(&resource->list_node, &r->list_node);  in acpi_power_add_resource_to_list()
924 	list_add_tail(&resource->list_node, &acpi_power_resource_list);  in acpi_power_add_resource_to_list()
933 	struct acpi_power_resource *resource;  in acpi_add_power_resource()  local
943 	resource = kzalloc(sizeof(*resource), GFP_KERNEL);  in acpi_add_power_resource()
944 	if (!resource)  in acpi_add_power_resource()
947 	device = &resource->device;  in acpi_add_power_resource()
950 	mutex_init(&resource->resource_lock);  in acpi_add_power_resource()
951 	INIT_LIST_HEAD(&resource->list_node);  in acpi_add_power_resource()
952 	INIT_LIST_HEAD(&resource->dependents);  in acpi_add_power_resource()
963 	resource->system_level = acpi_object.power_resource.system_level;  in acpi_add_power_resource()
964 	resource->order = acpi_object.power_resource.resource_order;  in acpi_add_power_resource()
965 	resource->state = ACPI_POWER_RESOURCE_STATE_UNKNOWN;  in acpi_add_power_resource()
968 	if (acpi_power_get_state(resource, &state_dummy))  in acpi_add_power_resource()
969 		__acpi_power_on(resource);  in acpi_add_power_resource()
984 	acpi_power_add_resource_to_list(resource);  in acpi_add_power_resource()
996 	struct acpi_power_resource *resource;  in acpi_resume_power_resources()  local
1000 	list_for_each_entry(resource, &acpi_power_resource_list, list_node) {  in acpi_resume_power_resources()
1004 		mutex_lock(&resource->resource_lock);  in acpi_resume_power_resources()
1006 		resource->state = ACPI_POWER_RESOURCE_STATE_UNKNOWN;  in acpi_resume_power_resources()
1007 		result = acpi_power_get_state(resource, &state);  in acpi_resume_power_resources()
1009 			mutex_unlock(&resource->resource_lock);  in acpi_resume_power_resources()
1014 		    && resource->ref_count) {  in acpi_resume_power_resources()
1015 			acpi_handle_debug(resource->device.handle, "Turning ON\n");  in acpi_resume_power_resources()
1016 			__acpi_power_on(resource);  in acpi_resume_power_resources()
1019 		mutex_unlock(&resource->resource_lock);  in acpi_resume_power_resources()
1046 	struct acpi_power_resource *resource;  in acpi_turn_off_unused_power_resources()  local
1053 	list_for_each_entry_reverse(resource, &acpi_power_resource_list, list_node) {  in acpi_turn_off_unused_power_resources()
1054 		mutex_lock(&resource->resource_lock);  in acpi_turn_off_unused_power_resources()
1056 		if (!resource->ref_count &&  in acpi_turn_off_unused_power_resources()
1057 		    resource->state == ACPI_POWER_RESOURCE_STATE_ON) {  in acpi_turn_off_unused_power_resources()
1058 			acpi_handle_debug(resource->device.handle, "Turning OFF\n");  in acpi_turn_off_unused_power_resources()
1059 			__acpi_power_off(resource);  in acpi_turn_off_unused_power_resources()
1062 		mutex_unlock(&resource->resource_lock);  in acpi_turn_off_unused_power_resources()