40 int devfreq_event_enable_edev(struct devfreq_event_dev *edev)  in devfreq_event_enable_edev()  argument
44 	if (!edev || !edev->desc)  in devfreq_event_enable_edev()
47 	mutex_lock(&edev->lock);  in devfreq_event_enable_edev()
48 	if (edev->desc->ops && edev->desc->ops->enable  in devfreq_event_enable_edev()
49 			&& edev->enable_count == 0) {  in devfreq_event_enable_edev()
50 		ret = edev->desc->ops->enable(edev);  in devfreq_event_enable_edev()
54 	edev->enable_count++;  in devfreq_event_enable_edev()
56 	mutex_unlock(&edev->lock);  in devfreq_event_enable_edev()
72 int devfreq_event_disable_edev(struct devfreq_event_dev *edev)  in devfreq_event_disable_edev()  argument
76 	if (!edev || !edev->desc)  in devfreq_event_disable_edev()
79 	mutex_lock(&edev->lock);  in devfreq_event_disable_edev()
80 	if (edev->enable_count <= 0) {  in devfreq_event_disable_edev()
81 		dev_warn(&edev->dev, "unbalanced enable_count\n");  in devfreq_event_disable_edev()
86 	if (edev->desc->ops && edev->desc->ops->disable  in devfreq_event_disable_edev()
87 			&& edev->enable_count == 1) {  in devfreq_event_disable_edev()
88 		ret = edev->desc->ops->disable(edev);  in devfreq_event_disable_edev()
92 	edev->enable_count--;  in devfreq_event_disable_edev()
94 	mutex_unlock(&edev->lock);  in devfreq_event_disable_edev()
109 bool devfreq_event_is_enabled(struct devfreq_event_dev *edev)  in devfreq_event_is_enabled()  argument
113 	if (!edev || !edev->desc)  in devfreq_event_is_enabled()
116 	mutex_lock(&edev->lock);  in devfreq_event_is_enabled()
118 	if (edev->enable_count > 0)  in devfreq_event_is_enabled()
121 	mutex_unlock(&edev->lock);  in devfreq_event_is_enabled()
134 int devfreq_event_set_event(struct devfreq_event_dev *edev)  in devfreq_event_set_event()  argument
138 	if (!edev || !edev->desc)  in devfreq_event_set_event()
141 	if (!edev->desc->ops || !edev->desc->ops->set_event)  in devfreq_event_set_event()
144 	if (!devfreq_event_is_enabled(edev))  in devfreq_event_set_event()
147 	mutex_lock(&edev->lock);  in devfreq_event_set_event()
148 	ret = edev->desc->ops->set_event(edev);  in devfreq_event_set_event()
149 	mutex_unlock(&edev->lock);  in devfreq_event_set_event()
163 int devfreq_event_get_event(struct devfreq_event_dev *edev,  in devfreq_event_get_event()  argument
168 	if (!edev || !edev->desc)  in devfreq_event_get_event()
171 	if (!edev->desc->ops || !edev->desc->ops->get_event)  in devfreq_event_get_event()
174 	if (!devfreq_event_is_enabled(edev))  in devfreq_event_get_event()
179 	mutex_lock(&edev->lock);  in devfreq_event_get_event()
180 	ret = edev->desc->ops->get_event(edev, edata);  in devfreq_event_get_event()
183 	mutex_unlock(&edev->lock);  in devfreq_event_get_event()
196 int devfreq_event_reset_event(struct devfreq_event_dev *edev)  in devfreq_event_reset_event()  argument
200 	if (!edev || !edev->desc)  in devfreq_event_reset_event()
203 	if (!devfreq_event_is_enabled(edev))  in devfreq_event_reset_event()
206 	mutex_lock(&edev->lock);  in devfreq_event_reset_event()
207 	if (edev->desc->ops && edev->desc->ops->reset)  in devfreq_event_reset_event()
208 		ret = edev->desc->ops->reset(edev);  in devfreq_event_reset_event()
209 	mutex_unlock(&edev->lock);  in devfreq_event_reset_event()
227 	struct devfreq_event_dev *edev;  in devfreq_event_get_edev_by_phandle()  local
242 	list_for_each_entry(edev, &devfreq_event_list, node) {  in devfreq_event_get_edev_by_phandle()
243 		if (!strcmp(edev->desc->name, node->name))  in devfreq_event_get_edev_by_phandle()
246 	edev = NULL;  in devfreq_event_get_edev_by_phandle()
250 	if (!edev) {  in devfreq_event_get_edev_by_phandle()
259 	return edev;  in devfreq_event_get_edev_by_phandle()
293 	struct devfreq_event_dev *edev = to_devfreq_event(dev);  in devfreq_event_release_edev()  local
295 	kfree(edev);  in devfreq_event_release_edev()
310 	struct devfreq_event_dev *edev;  in devfreq_event_add_edev()  local
323 	edev = kzalloc(sizeof(struct devfreq_event_dev), GFP_KERNEL);  in devfreq_event_add_edev()
324 	if (!edev)  in devfreq_event_add_edev()
327 	mutex_init(&edev->lock);  in devfreq_event_add_edev()
328 	edev->desc = desc;  in devfreq_event_add_edev()
329 	edev->enable_count = 0;  in devfreq_event_add_edev()
330 	edev->dev.parent = dev;  in devfreq_event_add_edev()
331 	edev->dev.class = devfreq_event_class;  in devfreq_event_add_edev()
332 	edev->dev.release = devfreq_event_release_edev;  in devfreq_event_add_edev()
334 	dev_set_name(&edev->dev, "event.%d", atomic_inc_return(&event_no) - 1);  in devfreq_event_add_edev()
335 	ret = device_register(&edev->dev);  in devfreq_event_add_edev()
337 		put_device(&edev->dev);  in devfreq_event_add_edev()
340 	dev_set_drvdata(&edev->dev, edev);  in devfreq_event_add_edev()
342 	INIT_LIST_HEAD(&edev->node);  in devfreq_event_add_edev()
345 	list_add(&edev->node, &devfreq_event_list);  in devfreq_event_add_edev()
348 	return edev;  in devfreq_event_add_edev()
358 int devfreq_event_remove_edev(struct devfreq_event_dev *edev)  in devfreq_event_remove_edev()  argument
360 	if (!edev)  in devfreq_event_remove_edev()
363 	WARN_ON(edev->enable_count);  in devfreq_event_remove_edev()
366 	list_del(&edev->node);  in devfreq_event_remove_edev()
369 	device_unregister(&edev->dev);  in devfreq_event_remove_edev()
403 	struct devfreq_event_dev **ptr, *edev;  in devm_devfreq_event_add_edev()  local
409 	edev = devfreq_event_add_edev(dev, desc);  in devm_devfreq_event_add_edev()
410 	if (IS_ERR(edev)) {  in devm_devfreq_event_add_edev()
415 	*ptr = edev;  in devm_devfreq_event_add_edev()
418 	return edev;  in devm_devfreq_event_add_edev()
431 				struct devfreq_event_dev *edev)  in devm_devfreq_event_remove_edev()  argument
434 			       devm_devfreq_event_match, edev));  in devm_devfreq_event_remove_edev()
444 	struct devfreq_event_dev *edev = to_devfreq_event(dev);  in name_show()  local
446 	if (!edev || !edev->desc)  in name_show()
449 	return sprintf(buf, "%s\n", edev->desc->name);  in name_show()
456 	struct devfreq_event_dev *edev = to_devfreq_event(dev);  in enable_count_show()  local
458 	if (!edev || !edev->desc)  in enable_count_show()
461 	return sprintf(buf, "%d\n", edev->enable_count);  in enable_count_show()