99 static int update_avg_interval(struct acpi_power_meter_resource *resource)  in update_avg_interval()  argument
104 	status = acpi_evaluate_integer(resource->acpi_dev->handle, "_GAI",  in update_avg_interval()
107 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_GAI",  in update_avg_interval()
112 	resource->avg_interval = data;  in update_avg_interval()
117 static int update_cap(struct acpi_power_meter_resource *resource)  in update_cap()  argument
122 	status = acpi_evaluate_integer(resource->acpi_dev->handle, "_GHL",  in update_cap()
125 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_GHL",  in update_cap()
130 	resource->cap = data;  in update_cap()
135 static int set_acpi_trip(struct acpi_power_meter_resource *resource)  in set_acpi_trip()  argument
146 	if (resource->trip[0] < 0 || resource->trip[1] < 0)  in set_acpi_trip()
150 	arg_objs[0].integer.value = resource->trip[1];  in set_acpi_trip()
151 	arg_objs[1].integer.value = resource->trip[0];  in set_acpi_trip()
153 	status = acpi_evaluate_integer(resource->acpi_dev->handle, "_PTP",  in set_acpi_trip()
156 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_PTP",  in set_acpi_trip()
169 static int update_meter(struct acpi_power_meter_resource *resource)  in update_meter()  argument
175 	if (time_before(local_jiffies, resource->sensors_last_updated +  in update_meter()
176 			msecs_to_jiffies(resource->caps.sampling_time)) &&  in update_meter()
177 			resource->sensors_valid)  in update_meter()
180 	status = acpi_evaluate_integer(resource->acpi_dev->handle, "_PMM",  in update_meter()
183 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_PMM",  in update_meter()
188 	resource->power = data;  in update_meter()
189 	resource->sensors_valid = 1;  in update_meter()
190 	resource->sensors_last_updated = jiffies;  in update_meter()
195 static void remove_domain_devices(struct acpi_power_meter_resource *resource)  in remove_domain_devices()  argument
199 	if (!resource->num_domain_devices)  in remove_domain_devices()
202 	for (i = 0; i < resource->num_domain_devices; i++) {  in remove_domain_devices()
203 		struct acpi_device *obj = resource->domain_devices[i];  in remove_domain_devices()
208 		sysfs_remove_link(resource->holders_dir,  in remove_domain_devices()
213 	kfree(resource->domain_devices);  in remove_domain_devices()
214 	kobject_put(resource->holders_dir);  in remove_domain_devices()
215 	resource->num_domain_devices = 0;  in remove_domain_devices()
218 static int read_domain_devices(struct acpi_power_meter_resource *resource)  in read_domain_devices()  argument
226 	status = acpi_evaluate_object(resource->acpi_dev->handle, "_PMD", NULL,  in read_domain_devices()
229 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_PMD",  in read_domain_devices()
237 		dev_err(&resource->acpi_dev->dev, ACPI_POWER_METER_NAME  in read_domain_devices()
246 	resource->domain_devices = kcalloc(pss->package.count,  in read_domain_devices()
249 	if (!resource->domain_devices) {  in read_domain_devices()
254 	resource->holders_dir = kobject_create_and_add("measures",  in read_domain_devices()
255 						       &resource->acpi_dev->dev.kobj);  in read_domain_devices()
256 	if (!resource->holders_dir) {  in read_domain_devices()
261 	resource->num_domain_devices = pss->package.count;  in read_domain_devices()
273 		resource->domain_devices[i] = obj;  in read_domain_devices()
277 		res = sysfs_create_link(resource->holders_dir, &obj->dev.kobj,  in read_domain_devices()
281 			resource->domain_devices[i] = NULL;  in read_domain_devices()
289 	kfree(resource->domain_devices);  in read_domain_devices()
295 static int set_trip(struct acpi_power_meter_resource *resource, u16 trip_idx,  in set_trip()  argument
302 	trip_bk = resource->trip[trip_idx];  in set_trip()
304 	resource->trip[trip_idx] = trip;  in set_trip()
305 	ret = set_acpi_trip(resource);  in set_trip()
307 		dev_err(&resource->acpi_dev->dev, "set %s failed.\n",  in set_trip()
310 		resource->trip[trip_idx] = trip_bk;  in set_trip()
316 static int set_cap(struct acpi_power_meter_resource *resource,  in set_cap()  argument
325 	if (cap > resource->caps.max_cap || cap < resource->caps.min_cap)  in set_cap()
329 	status = acpi_evaluate_integer(resource->acpi_dev->handle, "_SHL",  in set_cap()
332 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_SHL",  in set_cap()
336 	resource->cap = cap;  in set_cap()
345 static int set_avg_interval(struct acpi_power_meter_resource *resource,  in set_avg_interval()  argument
353 	if (val > resource->caps.max_avg_interval ||  in set_avg_interval()
354 	    val < resource->caps.min_avg_interval)  in set_avg_interval()
358 	status = acpi_evaluate_integer(resource->acpi_dev->handle, "_PAI",  in set_avg_interval()
361 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_PAI",  in set_avg_interval()
365 	resource->avg_interval = val;  in set_avg_interval()
374 static int get_power_alarm_state(struct acpi_power_meter_resource *resource,  in get_power_alarm_state()  argument
379 	ret = update_meter(resource);  in get_power_alarm_state()
384 	if (!(resource->caps.flags & POWER_METER_CAN_NOTIFY)) {  in get_power_alarm_state()
385 		ret = update_cap(resource);  in get_power_alarm_state()
388 		resource->power_alarm = resource->power > resource->cap;  in get_power_alarm_state()
389 		*val = resource->power_alarm;  in get_power_alarm_state()
391 		*val = resource->power_alarm || resource->power > resource->cap;  in get_power_alarm_state()
392 		resource->power_alarm = resource->power > resource->cap;  in get_power_alarm_state()
723 static void free_capabilities(struct acpi_power_meter_resource *resource)  in free_capabilities()  argument
728 	str = &resource->model_number;  in free_capabilities()
735 static int read_capabilities(struct acpi_power_meter_resource *resource)  in read_capabilities()  argument
746 	status = acpi_evaluate_object(resource->acpi_dev->handle, "_PMC", NULL,  in read_capabilities()
749 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_PMC",  in read_capabilities()
758 		dev_err(&resource->acpi_dev->dev, ACPI_POWER_METER_NAME  in read_capabilities()
766 	state.pointer = &resource->caps;  in read_capabilities()
770 		dev_err(&resource->acpi_dev->dev, ACPI_POWER_METER_NAME  in read_capabilities()
777 	if (resource->caps.units) {  in read_capabilities()
778 		dev_err(&resource->acpi_dev->dev, ACPI_POWER_METER_NAME  in read_capabilities()
780 			resource->caps.units);  in read_capabilities()
786 	str = &resource->model_number;  in read_capabilities()
806 	dev_info(&resource->acpi_dev->dev, "Found ACPI power meter.\n");  in read_capabilities()
809 	free_capabilities(resource);  in read_capabilities()
818 	struct acpi_power_meter_resource *resource;  in acpi_power_meter_notify()  local
824 	resource = acpi_driver_data(device);  in acpi_power_meter_notify()
828 		mutex_lock(&resource->lock);  in acpi_power_meter_notify()
829 		free_capabilities(resource);  in acpi_power_meter_notify()
830 		remove_domain_devices(resource);  in acpi_power_meter_notify()
831 		hwmon_device_unregister(resource->hwmon_dev);  in acpi_power_meter_notify()
832 		res = read_capabilities(resource);  in acpi_power_meter_notify()
835 		res = read_domain_devices(resource);  in acpi_power_meter_notify()
838 		resource->hwmon_dev =  in acpi_power_meter_notify()
841 							resource,  in acpi_power_meter_notify()
844 		if (IS_ERR(resource->hwmon_dev))  in acpi_power_meter_notify()
846 		mutex_unlock(&resource->lock);  in acpi_power_meter_notify()
852 		mutex_lock(&resource->lock);  in acpi_power_meter_notify()
853 		res = update_cap(resource);  in acpi_power_meter_notify()
856 		mutex_unlock(&resource->lock);  in acpi_power_meter_notify()
863 		mutex_lock(&resource->lock);  in acpi_power_meter_notify()
864 		resource->power_alarm = true;  in acpi_power_meter_notify()
865 		mutex_unlock(&resource->lock);  in acpi_power_meter_notify()
881 	struct acpi_power_meter_resource *resource;  in acpi_power_meter_add()  local
886 	resource = kzalloc(sizeof(*resource), GFP_KERNEL);  in acpi_power_meter_add()
887 	if (!resource)  in acpi_power_meter_add()
890 	resource->sensors_valid = 0;  in acpi_power_meter_add()
891 	resource->acpi_dev = device;  in acpi_power_meter_add()
892 	mutex_init(&resource->lock);  in acpi_power_meter_add()
895 	device->driver_data = resource;  in acpi_power_meter_add()
913 	res = read_capabilities(resource);  in acpi_power_meter_add()
917 	resource->trip[0] = -1;  in acpi_power_meter_add()
918 	resource->trip[1] = -1;  in acpi_power_meter_add()
921 	res = read_domain_devices(resource);  in acpi_power_meter_add()
925 	resource->hwmon_dev =  in acpi_power_meter_add()
927 						ACPI_POWER_METER_NAME, resource,  in acpi_power_meter_add()
930 	if (IS_ERR(resource->hwmon_dev)) {  in acpi_power_meter_add()
931 		res = PTR_ERR(resource->hwmon_dev);  in acpi_power_meter_add()
939 	remove_domain_devices(resource);  in acpi_power_meter_add()
941 	free_capabilities(resource);  in acpi_power_meter_add()
943 	kfree(resource);  in acpi_power_meter_add()
950 	struct acpi_power_meter_resource *resource;  in acpi_power_meter_remove()  local
955 	resource = acpi_driver_data(device);  in acpi_power_meter_remove()
956 	hwmon_device_unregister(resource->hwmon_dev);  in acpi_power_meter_remove()
958 	remove_domain_devices(resource);  in acpi_power_meter_remove()
959 	free_capabilities(resource);  in acpi_power_meter_remove()
961 	kfree(resource);  in acpi_power_meter_remove()
966 	struct acpi_power_meter_resource *resource;  in acpi_power_meter_resume()  local
971 	resource = acpi_driver_data(to_acpi_device(dev));  in acpi_power_meter_resume()
972 	if (!resource)  in acpi_power_meter_resume()
975 	free_capabilities(resource);  in acpi_power_meter_resume()
976 	read_capabilities(resource);  in acpi_power_meter_resume()