62 	struct acpi_power_resource *resource;  member
91 	struct acpi_power_resource *resource = acpi_power_get_context(handle);  in acpi_power_resources_list_add()  local
94 	if (!resource || !list)  in acpi_power_resources_list_add()
101 	entry->resource = resource;  in acpi_power_resources_list_add()
106 			if (e->resource->order > resource->order) {  in acpi_power_resources_list_add()
218 		struct acpi_power_resource *resource = entry->resource;  in acpi_power_get_list_state()  local
219 		acpi_handle handle = resource->device.handle;  in acpi_power_get_list_state()
222 		mutex_lock(&resource->resource_lock);  in acpi_power_get_list_state()
224 		mutex_unlock(&resource->resource_lock);  in acpi_power_get_list_state()
240 acpi_power_resource_add_dependent(struct acpi_power_resource *resource,  in acpi_power_resource_add_dependent()  argument
246 	mutex_lock(&resource->resource_lock);  in acpi_power_resource_add_dependent()
247 	list_for_each_entry(dep, &resource->dependents, node) {  in acpi_power_resource_add_dependent()
260 	list_add_tail(&dep->node, &resource->dependents);  in acpi_power_resource_add_dependent()
261 	dev_dbg(dev, "added power dependency to [%s]\n", resource->name);  in acpi_power_resource_add_dependent()
264 	mutex_unlock(&resource->resource_lock);  in acpi_power_resource_add_dependent()
269 acpi_power_resource_remove_dependent(struct acpi_power_resource *resource,  in acpi_power_resource_remove_dependent()  argument
274 	mutex_lock(&resource->resource_lock);  in acpi_power_resource_remove_dependent()
275 	list_for_each_entry(dep, &resource->dependents, node) {  in acpi_power_resource_remove_dependent()
280 				resource->name);  in acpi_power_resource_remove_dependent()
284 	mutex_unlock(&resource->resource_lock);  in acpi_power_resource_remove_dependent()
314 		ret = acpi_power_resource_add_dependent(entry->resource, dev);  in acpi_device_power_add_dependent()
323 		acpi_power_resource_remove_dependent(entry->resource, dev);  in acpi_device_power_add_dependent()
348 		acpi_power_resource_remove_dependent(entry->resource, dev);  in acpi_device_power_remove_dependent()
351 static int __acpi_power_on(struct acpi_power_resource *resource)  in __acpi_power_on()  argument
356 	status = acpi_evaluate_object(resource->device.handle, "_ON", NULL, NULL);  in __acpi_power_on()
361 			  resource->name));  in __acpi_power_on()
368 	if (list_empty(&resource->dependents) ||  in __acpi_power_on()
369 	    list_is_singular(&resource->dependents))  in __acpi_power_on()
372 	list_for_each_entry(dep, &resource->dependents, node) {  in __acpi_power_on()
374 			resource->name);  in __acpi_power_on()
381 static int acpi_power_on_unlocked(struct acpi_power_resource *resource)  in acpi_power_on_unlocked()  argument
385 	if (resource->ref_count++) {  in acpi_power_on_unlocked()
388 				  resource->name));  in acpi_power_on_unlocked()
390 		result = __acpi_power_on(resource);  in acpi_power_on_unlocked()
392 			resource->ref_count--;  in acpi_power_on_unlocked()
397 static int acpi_power_on(struct acpi_power_resource *resource)  in acpi_power_on()  argument
401 	mutex_lock(&resource->resource_lock);  in acpi_power_on()
402 	result = acpi_power_on_unlocked(resource);  in acpi_power_on()
403 	mutex_unlock(&resource->resource_lock);  in acpi_power_on()
407 static int __acpi_power_off(struct acpi_power_resource *resource)  in __acpi_power_off()  argument
411 	status = acpi_evaluate_object(resource->device.handle, "_OFF",  in __acpi_power_off()
417 			  resource->name));  in __acpi_power_off()
421 static int acpi_power_off_unlocked(struct acpi_power_resource *resource)  in acpi_power_off_unlocked()  argument
425 	if (!resource->ref_count) {  in acpi_power_off_unlocked()
428 				  resource->name));  in acpi_power_off_unlocked()
432 	if (--resource->ref_count) {  in acpi_power_off_unlocked()
435 				  resource->name));  in acpi_power_off_unlocked()
437 		result = __acpi_power_off(resource);  in acpi_power_off_unlocked()
439 			resource->ref_count++;  in acpi_power_off_unlocked()
444 static int acpi_power_off(struct acpi_power_resource *resource)  in acpi_power_off()  argument
448 	mutex_lock(&resource->resource_lock);  in acpi_power_off()
449 	result = acpi_power_off_unlocked(resource);  in acpi_power_off()
450 	mutex_unlock(&resource->resource_lock);  in acpi_power_off()
460 		result = acpi_power_off(entry->resource);  in acpi_power_off_list()
468 		acpi_power_on(entry->resource);  in acpi_power_off_list()
479 		result = acpi_power_on(entry->resource);  in acpi_power_on_list()
487 		acpi_power_off(entry->resource);  in acpi_power_on_list()
530 		struct acpi_device *res_dev = &entry->resource->device;  in acpi_power_hide_list()
554 		struct acpi_device *res_dev = &entry->resource->device;  in acpi_power_expose_list()
601 		struct acpi_power_resource *resource = entry->resource;  in acpi_power_wakeup_list_init()  local
602 		acpi_handle handle = resource->device.handle;  in acpi_power_wakeup_list_init()
606 		mutex_lock(&resource->resource_lock);  in acpi_power_wakeup_list_init()
610 			mutex_unlock(&resource->resource_lock);  in acpi_power_wakeup_list_init()
614 			resource->ref_count++;  in acpi_power_wakeup_list_init()
615 			resource->wakeup_enabled = true;  in acpi_power_wakeup_list_init()
617 		if (system_level > resource->system_level)  in acpi_power_wakeup_list_init()
618 			system_level = resource->system_level;  in acpi_power_wakeup_list_init()
620 		mutex_unlock(&resource->resource_lock);  in acpi_power_wakeup_list_init()
711 		struct acpi_power_resource *resource = entry->resource;  in acpi_enable_wakeup_device_power()  local
713 		mutex_lock(&resource->resource_lock);  in acpi_enable_wakeup_device_power()
715 		if (!resource->wakeup_enabled) {  in acpi_enable_wakeup_device_power()
716 			err = acpi_power_on_unlocked(resource);  in acpi_enable_wakeup_device_power()
718 				resource->wakeup_enabled = true;  in acpi_enable_wakeup_device_power()
721 		mutex_unlock(&resource->resource_lock);  in acpi_enable_wakeup_device_power()
774 		struct acpi_power_resource *resource = entry->resource;  in acpi_disable_wakeup_device_power()  local
776 		mutex_lock(&resource->resource_lock);  in acpi_disable_wakeup_device_power()
778 		if (resource->wakeup_enabled) {  in acpi_disable_wakeup_device_power()
779 			err = acpi_power_off_unlocked(resource);  in acpi_disable_wakeup_device_power()
781 				resource->wakeup_enabled = false;  in acpi_disable_wakeup_device_power()
784 		mutex_unlock(&resource->resource_lock);  in acpi_disable_wakeup_device_power()
877 	struct acpi_power_resource *resource;  in acpi_release_power_resource()  local
879 	resource = container_of(device, struct acpi_power_resource, device);  in acpi_release_power_resource()
882 	list_del(&resource->list_node);  in acpi_release_power_resource()
886 	kfree(resource);  in acpi_release_power_resource()
892 	struct acpi_power_resource *resource;  in acpi_power_in_use_show()  local
894 	resource = to_power_resource(to_acpi_device(dev));  in acpi_power_in_use_show()
895 	return sprintf(buf, "%u\n", !!resource->ref_count);  in acpi_power_in_use_show()
904 static void acpi_power_add_resource_to_list(struct acpi_power_resource *resource)  in acpi_power_add_resource_to_list()  argument
912 			if (r->order > resource->order) {  in acpi_power_add_resource_to_list()
913 				list_add_tail(&resource->list_node, &r->list_node);  in acpi_power_add_resource_to_list()
917 	list_add_tail(&resource->list_node, &acpi_power_resource_list);  in acpi_power_add_resource_to_list()
925 	struct acpi_power_resource *resource;  in acpi_add_power_resource()  local
936 	resource = kzalloc(sizeof(*resource), GFP_KERNEL);  in acpi_add_power_resource()
937 	if (!resource)  in acpi_add_power_resource()
940 	device = &resource->device;  in acpi_add_power_resource()
943 	mutex_init(&resource->resource_lock);  in acpi_add_power_resource()
944 	INIT_LIST_HEAD(&resource->list_node);  in acpi_add_power_resource()
945 	INIT_LIST_HEAD(&resource->dependents);  in acpi_add_power_resource()
946 	resource->name = device->pnp.bus_id;  in acpi_add_power_resource()
956 	resource->system_level = acpi_object.power_resource.system_level;  in acpi_add_power_resource()
957 	resource->order = acpi_object.power_resource.resource_order;  in acpi_add_power_resource()
974 	acpi_power_add_resource_to_list(resource);  in acpi_add_power_resource()
986 	struct acpi_power_resource *resource;  in acpi_resume_power_resources()  local
990 	list_for_each_entry(resource, &acpi_power_resource_list, list_node) {  in acpi_resume_power_resources()
993 		mutex_lock(&resource->resource_lock);  in acpi_resume_power_resources()
995 		result = acpi_power_get_state(resource->device.handle, &state);  in acpi_resume_power_resources()
997 			mutex_unlock(&resource->resource_lock);  in acpi_resume_power_resources()
1002 		    && resource->ref_count) {  in acpi_resume_power_resources()
1003 			dev_info(&resource->device.dev, "Turning ON\n");  in acpi_resume_power_resources()
1004 			__acpi_power_on(resource);  in acpi_resume_power_resources()
1007 		mutex_unlock(&resource->resource_lock);  in acpi_resume_power_resources()
1015 	struct acpi_power_resource *resource;  in acpi_turn_off_unused_power_resources()  local
1019 	list_for_each_entry_reverse(resource, &acpi_power_resource_list, list_node) {  in acpi_turn_off_unused_power_resources()
1022 		mutex_lock(&resource->resource_lock);  in acpi_turn_off_unused_power_resources()
1024 		result = acpi_power_get_state(resource->device.handle, &state);  in acpi_turn_off_unused_power_resources()
1026 			mutex_unlock(&resource->resource_lock);  in acpi_turn_off_unused_power_resources()
1031 		    && !resource->ref_count) {  in acpi_turn_off_unused_power_resources()
1032 			dev_info(&resource->device.dev, "Turning OFF\n");  in acpi_turn_off_unused_power_resources()
1033 			__acpi_power_off(resource);  in acpi_turn_off_unused_power_resources()
1036 		mutex_unlock(&resource->resource_lock);  in acpi_turn_off_unused_power_resources()