Lines Matching refs:edev
31 * @edev : the devfreq-event device
37 int devfreq_event_enable_edev(struct devfreq_event_dev *edev)
41 if (!edev || !edev->desc)
44 mutex_lock(&edev->lock);
45 if (edev->desc->ops && edev->desc->ops->enable
46 && edev->enable_count == 0) {
47 ret = edev->desc->ops->enable(edev);
51 edev->enable_count++;
53 mutex_unlock(&edev->lock);
62 * @edev : the devfreq-event device
69 int devfreq_event_disable_edev(struct devfreq_event_dev *edev)
73 if (!edev || !edev->desc)
76 mutex_lock(&edev->lock);
77 if (edev->enable_count <= 0) {
78 dev_warn(&edev->dev, "unbalanced enable_count\n");
83 if (edev->desc->ops && edev->desc->ops->disable
84 && edev->enable_count == 1) {
85 ret = edev->desc->ops->disable(edev);
89 edev->enable_count--;
91 mutex_unlock(&edev->lock);
100 * @edev : the devfreq-event device
106 bool devfreq_event_is_enabled(struct devfreq_event_dev *edev)
110 if (!edev || !edev->desc)
113 mutex_lock(&edev->lock);
115 if (edev->enable_count > 0)
118 mutex_unlock(&edev->lock);
126 * @edev : the devfreq-event device
131 int devfreq_event_set_event(struct devfreq_event_dev *edev)
135 if (!edev || !edev->desc)
138 if (!edev->desc->ops || !edev->desc->ops->set_event)
141 if (!devfreq_event_is_enabled(edev))
144 mutex_lock(&edev->lock);
145 ret = edev->desc->ops->set_event(edev);
146 mutex_unlock(&edev->lock);
154 * @edev : the devfreq-event device
160 int devfreq_event_get_event(struct devfreq_event_dev *edev,
165 if (!edev || !edev->desc)
168 if (!edev->desc->ops || !edev->desc->ops->get_event)
171 if (!devfreq_event_is_enabled(edev))
176 mutex_lock(&edev->lock);
177 ret = edev->desc->ops->get_event(edev, edata);
180 mutex_unlock(&edev->lock);
188 * @edev : the devfreq-event device
193 int devfreq_event_reset_event(struct devfreq_event_dev *edev)
197 if (!edev || !edev->desc)
200 if (!devfreq_event_is_enabled(edev))
203 mutex_lock(&edev->lock);
204 if (edev->desc->ops && edev->desc->ops->reset)
205 ret = edev->desc->ops->reset(edev);
206 mutex_unlock(&edev->lock);
225 struct devfreq_event_dev *edev;
235 list_for_each_entry(edev, &devfreq_event_list, node) {
236 if (edev->dev.parent && device_match_of_node(edev->dev.parent, node))
240 list_for_each_entry(edev, &devfreq_event_list, node) {
241 if (of_node_name_eq(node, edev->desc->name))
244 edev = NULL;
248 if (!edev) {
255 return edev;
290 struct devfreq_event_dev *edev = to_devfreq_event(dev);
292 kfree(edev);
307 struct devfreq_event_dev *edev;
320 edev = kzalloc(sizeof(struct devfreq_event_dev), GFP_KERNEL);
321 if (!edev)
324 mutex_init(&edev->lock);
325 edev->desc = desc;
326 edev->enable_count = 0;
327 edev->dev.parent = dev;
328 edev->dev.class = devfreq_event_class;
329 edev->dev.release = devfreq_event_release_edev;
331 dev_set_name(&edev->dev, "event%d", atomic_inc_return(&event_no));
332 ret = device_register(&edev->dev);
334 put_device(&edev->dev);
337 dev_set_drvdata(&edev->dev, edev);
339 INIT_LIST_HEAD(&edev->node);
342 list_add(&edev->node, &devfreq_event_list);
345 return edev;
351 * @edev : the devfreq-event device
355 int devfreq_event_remove_edev(struct devfreq_event_dev *edev)
357 if (!edev)
360 WARN_ON(edev->enable_count);
363 list_del(&edev->node);
366 device_unregister(&edev->dev);
400 struct devfreq_event_dev **ptr, *edev;
407 edev = devfreq_event_add_edev(dev, desc);
408 if (IS_ERR(edev)) {
413 *ptr = edev;
416 return edev;
423 * @edev : the devfreq-event device
429 struct devfreq_event_dev *edev)
432 devm_devfreq_event_match, edev));
442 struct devfreq_event_dev *edev = to_devfreq_event(dev);
444 if (!edev || !edev->desc)
447 return sprintf(buf, "%s\n", edev->desc->name);
454 struct devfreq_event_dev *edev = to_devfreq_event(dev);
456 if (!edev || !edev->desc)
459 return sprintf(buf, "%d\n", edev->enable_count);