209 	struct extcon_dev *edev;  member
234 static int check_mutually_exclusive(struct extcon_dev *edev, u32 new_state)  in check_mutually_exclusive()  argument
238 	if (!edev->mutually_exclusive)  in check_mutually_exclusive()
241 	for (i = 0; edev->mutually_exclusive[i]; i++) {  in check_mutually_exclusive()
243 		u32 correspondants = new_state & edev->mutually_exclusive[i];  in check_mutually_exclusive()
254 static int find_cable_index_by_id(struct extcon_dev *edev, const unsigned int id)  in find_cable_index_by_id()  argument
259 	for (i = 0; i < edev->max_supported; i++) {  in find_cable_index_by_id()
260 		if (edev->supported_cable[i] == id)  in find_cable_index_by_id()
283 static bool is_extcon_attached(struct extcon_dev *edev, unsigned int index)  in is_extcon_attached()  argument
285 	return !!(edev->state & BIT(index));  in is_extcon_attached()
288 static bool is_extcon_changed(struct extcon_dev *edev, int index,  in is_extcon_changed()  argument
291 	int state = !!(edev->state & BIT(index));  in is_extcon_changed()
308 static int is_extcon_property_capability(struct extcon_dev *edev,  in is_extcon_property_capability()  argument
319 	cable = &edev->cables[index];  in is_extcon_property_capability()
341 static void init_property(struct extcon_dev *edev, unsigned int id, int index)  in init_property()  argument
344 	struct extcon_cable *cable = &edev->cables[index];  in init_property()
360 	struct extcon_dev *edev = dev_get_drvdata(dev);  in state_show()  local
362 	if (edev->max_supported == 0)  in state_show()
363 		return sprintf(buf, "%u\n", edev->state);  in state_show()
365 	for (i = 0; i < edev->max_supported; i++) {  in state_show()
367 				extcon_info[edev->supported_cable[i]].name,  in state_show()
368 				 !!(edev->state & BIT(i)));  in state_show()
378 	struct extcon_dev *edev = dev_get_drvdata(dev);  in name_show()  local
380 	return sprintf(buf, "%s\n", edev->name);  in name_show()
392 			extcon_info[cable->edev->supported_cable[i]].name);  in cable_name_show()
404 		extcon_get_state(cable->edev, cable->edev->supported_cable[i]));  in cable_state_show()
416 int extcon_sync(struct extcon_dev *edev, unsigned int id)  in extcon_sync()  argument
428 	if (!edev)  in extcon_sync()
431 	index = find_cable_index_by_id(edev, id);  in extcon_sync()
435 	spin_lock_irqsave(&edev->lock, flags);  in extcon_sync()
436 	state = !!(edev->state & BIT(index));  in extcon_sync()
437 	spin_unlock_irqrestore(&edev->lock, flags);  in extcon_sync()
443 	raw_notifier_call_chain(&edev->nh[index], state, edev);  in extcon_sync()
449 	raw_notifier_call_chain(&edev->nh_all, state, edev);  in extcon_sync()
451 	spin_lock_irqsave(&edev->lock, flags);  in extcon_sync()
456 		spin_unlock_irqrestore(&edev->lock, flags);  in extcon_sync()
458 		dev_err(&edev->dev, "out of memory in extcon_set_state\n");  in extcon_sync()
459 		kobject_uevent(&edev->dev.kobj, KOBJ_CHANGE);  in extcon_sync()
464 	length = name_show(&edev->dev, NULL, prop_buf);  in extcon_sync()
472 	length = state_show(&edev->dev, NULL, prop_buf);  in extcon_sync()
482 	spin_unlock_irqrestore(&edev->lock, flags);  in extcon_sync()
483 	kobject_uevent_env(&edev->dev.kobj, KOBJ_CHANGE, envp);  in extcon_sync()
497 int extcon_get_state(struct extcon_dev *edev, const unsigned int id)  in extcon_get_state()  argument
502 	if (!edev)  in extcon_get_state()
505 	index = find_cable_index_by_id(edev, id);  in extcon_get_state()
509 	spin_lock_irqsave(&edev->lock, flags);  in extcon_get_state()
510 	state = is_extcon_attached(edev, index);  in extcon_get_state()
511 	spin_unlock_irqrestore(&edev->lock, flags);  in extcon_get_state()
530 int extcon_set_state(struct extcon_dev *edev, unsigned int id, bool state)  in extcon_set_state()  argument
535 	if (!edev)  in extcon_set_state()
538 	index = find_cable_index_by_id(edev, id);  in extcon_set_state()
542 	spin_lock_irqsave(&edev->lock, flags);  in extcon_set_state()
545 	if (!is_extcon_changed(edev, index, state))  in extcon_set_state()
548 	if (check_mutually_exclusive(edev,  in extcon_set_state()
549 		(edev->state & ~BIT(index)) | (state & BIT(index)))) {  in extcon_set_state()
559 		init_property(edev, id, index);  in extcon_set_state()
563 		edev->state |= BIT(index);  in extcon_set_state()
565 		edev->state &= ~(BIT(index));  in extcon_set_state()
567 	spin_unlock_irqrestore(&edev->lock, flags);  in extcon_set_state()
585 int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id, bool state)  in extcon_set_state_sync()  argument
590 	index = find_cable_index_by_id(edev, id);  in extcon_set_state_sync()
595 	spin_lock_irqsave(&edev->lock, flags);  in extcon_set_state_sync()
596 	ret = is_extcon_changed(edev, index, state);  in extcon_set_state_sync()
597 	spin_unlock_irqrestore(&edev->lock, flags);  in extcon_set_state_sync()
601 	ret = extcon_set_state(edev, id, state);  in extcon_set_state_sync()
605 	return extcon_sync(edev, id);  in extcon_set_state_sync()
623 int extcon_get_property(struct extcon_dev *edev, unsigned int id,  in extcon_get_property()  argument
633 	if (!edev)  in extcon_get_property()
641 	index = find_cable_index_by_id(edev, id);  in extcon_get_property()
645 	spin_lock_irqsave(&edev->lock, flags);  in extcon_get_property()
648 	if (!is_extcon_property_capability(edev, id, index, prop)) {  in extcon_get_property()
649 		spin_unlock_irqrestore(&edev->lock, flags);  in extcon_get_property()
658 	if (!is_extcon_attached(edev, index)) {  in extcon_get_property()
659 		spin_unlock_irqrestore(&edev->lock, flags);  in extcon_get_property()
663 	cable = &edev->cables[index];  in extcon_get_property()
684 	spin_unlock_irqrestore(&edev->lock, flags);  in extcon_get_property()
702 int extcon_set_property(struct extcon_dev *edev, unsigned int id,  in extcon_set_property()  argument
710 	if (!edev)  in extcon_set_property()
718 	index = find_cable_index_by_id(edev, id);  in extcon_set_property()
722 	spin_lock_irqsave(&edev->lock, flags);  in extcon_set_property()
725 	if (!is_extcon_property_capability(edev, id, index, prop)) {  in extcon_set_property()
726 		spin_unlock_irqrestore(&edev->lock, flags);  in extcon_set_property()
730 	cable = &edev->cables[index];  in extcon_set_property()
751 	spin_unlock_irqrestore(&edev->lock, flags);  in extcon_set_property()
767 int extcon_set_property_sync(struct extcon_dev *edev, unsigned int id,  in extcon_set_property_sync()  argument
773 	ret = extcon_set_property(edev, id, prop, prop_val);  in extcon_set_property_sync()
777 	return extcon_sync(edev, id);  in extcon_set_property_sync()
790 int extcon_get_property_capability(struct extcon_dev *edev, unsigned int id,  in extcon_get_property_capability()  argument
795 	if (!edev)  in extcon_get_property_capability()
803 	index = find_cable_index_by_id(edev, id);  in extcon_get_property_capability()
807 	return is_extcon_property_capability(edev, id, index, prop);  in extcon_get_property_capability()
824 int extcon_set_property_capability(struct extcon_dev *edev, unsigned int id,  in extcon_set_property_capability()  argument
830 	if (!edev)  in extcon_set_property_capability()
838 	index = find_cable_index_by_id(edev, id);  in extcon_set_property_capability()
846 	cable = &edev->cables[index];  in extcon_set_property_capability()
907 int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,  in extcon_register_notifier()  argument
913 	if (!edev || !nb)  in extcon_register_notifier()
916 	idx = find_cable_index_by_id(edev, id);  in extcon_register_notifier()
920 	spin_lock_irqsave(&edev->lock, flags);  in extcon_register_notifier()
921 	ret = raw_notifier_chain_register(&edev->nh[idx], nb);  in extcon_register_notifier()
922 	spin_unlock_irqrestore(&edev->lock, flags);  in extcon_register_notifier()
936 int extcon_unregister_notifier(struct extcon_dev *edev, unsigned int id,  in extcon_unregister_notifier()  argument
942 	if (!edev || !nb)  in extcon_unregister_notifier()
945 	idx = find_cable_index_by_id(edev, id);  in extcon_unregister_notifier()
949 	spin_lock_irqsave(&edev->lock, flags);  in extcon_unregister_notifier()
950 	ret = raw_notifier_chain_unregister(&edev->nh[idx], nb);  in extcon_unregister_notifier()
951 	spin_unlock_irqrestore(&edev->lock, flags);  in extcon_unregister_notifier()
969 int extcon_register_notifier_all(struct extcon_dev *edev,  in extcon_register_notifier_all()  argument
975 	if (!edev || !nb)  in extcon_register_notifier_all()
978 	spin_lock_irqsave(&edev->lock, flags);  in extcon_register_notifier_all()
979 	ret = raw_notifier_chain_register(&edev->nh_all, nb);  in extcon_register_notifier_all()
980 	spin_unlock_irqrestore(&edev->lock, flags);  in extcon_register_notifier_all()
993 int extcon_unregister_notifier_all(struct extcon_dev *edev,  in extcon_unregister_notifier_all()  argument
999 	if (!edev || !nb)  in extcon_unregister_notifier_all()
1002 	spin_lock_irqsave(&edev->lock, flags);  in extcon_unregister_notifier_all()
1003 	ret = raw_notifier_chain_unregister(&edev->nh_all, nb);  in extcon_unregister_notifier_all()
1004 	spin_unlock_irqrestore(&edev->lock, flags);  in extcon_unregister_notifier_all()
1051 	struct extcon_dev *edev;  in extcon_dev_allocate()  local
1056 	edev = kzalloc(sizeof(*edev), GFP_KERNEL);  in extcon_dev_allocate()
1057 	if (!edev)  in extcon_dev_allocate()
1060 	edev->max_supported = 0;  in extcon_dev_allocate()
1061 	edev->supported_cable = supported_cable;  in extcon_dev_allocate()
1063 	return edev;  in extcon_dev_allocate()
1070 void extcon_dev_free(struct extcon_dev *edev)  in extcon_dev_free()  argument
1072 	kfree(edev);  in extcon_dev_free()
1090 int extcon_dev_register(struct extcon_dev *edev)  in extcon_dev_register()  argument
1101 	if (!edev || !edev->supported_cable)  in extcon_dev_register()
1104 	for (; edev->supported_cable[index] != EXTCON_NONE; index++);  in extcon_dev_register()
1106 	edev->max_supported = index;  in extcon_dev_register()
1108 		dev_err(&edev->dev,  in extcon_dev_register()
1113 	edev->dev.class = extcon_class;  in extcon_dev_register()
1114 	edev->dev.release = extcon_dev_release;  in extcon_dev_register()
1116 	edev->name = dev_name(edev->dev.parent);  in extcon_dev_register()
1117 	if (IS_ERR_OR_NULL(edev->name)) {  in extcon_dev_register()
1118 		dev_err(&edev->dev,  in extcon_dev_register()
1122 	dev_set_name(&edev->dev, "extcon%lu",  in extcon_dev_register()
1125 	if (edev->max_supported) {  in extcon_dev_register()
1130 		edev->cables = kcalloc(edev->max_supported,  in extcon_dev_register()
1133 		if (!edev->cables) {  in extcon_dev_register()
1137 		for (index = 0; index < edev->max_supported; index++) {  in extcon_dev_register()
1138 			cable = &edev->cables[index];  in extcon_dev_register()
1145 					cable = &edev->cables[index];  in extcon_dev_register()
1154 			cable->edev = edev;  in extcon_dev_register()
1174 	if (edev->max_supported && edev->mutually_exclusive) {  in extcon_dev_register()
1179 		for (index = 0; edev->mutually_exclusive[index]; index++)  in extcon_dev_register()
1182 		edev->attrs_muex = kcalloc(index + 1,  in extcon_dev_register()
1185 		if (!edev->attrs_muex) {  in extcon_dev_register()
1190 		edev->d_attrs_muex = kcalloc(index,  in extcon_dev_register()
1193 		if (!edev->d_attrs_muex) {  in extcon_dev_register()
1195 			kfree(edev->attrs_muex);  in extcon_dev_register()
1199 		for (index = 0; edev->mutually_exclusive[index]; index++) {  in extcon_dev_register()
1200 			sprintf(buf, "0x%x", edev->mutually_exclusive[index]);  in extcon_dev_register()
1205 					kfree(edev->d_attrs_muex[index].attr.  in extcon_dev_register()
1208 				kfree(edev->d_attrs_muex);  in extcon_dev_register()
1209 				kfree(edev->attrs_muex);  in extcon_dev_register()
1214 			sysfs_attr_init(&edev->d_attrs_muex[index].attr);  in extcon_dev_register()
1215 			edev->d_attrs_muex[index].attr.name = name;  in extcon_dev_register()
1216 			edev->d_attrs_muex[index].attr.mode = 0000;  in extcon_dev_register()
1217 			edev->attrs_muex[index] = &edev->d_attrs_muex[index]  in extcon_dev_register()
1220 		edev->attr_g_muex.name = muex_name;  in extcon_dev_register()
1221 		edev->attr_g_muex.attrs = edev->attrs_muex;  in extcon_dev_register()
1225 	if (edev->max_supported) {  in extcon_dev_register()
1226 		edev->extcon_dev_type.groups =  in extcon_dev_register()
1227 			kcalloc(edev->max_supported + 2,  in extcon_dev_register()
1230 		if (!edev->extcon_dev_type.groups) {  in extcon_dev_register()
1235 		edev->extcon_dev_type.name = dev_name(&edev->dev);  in extcon_dev_register()
1236 		edev->extcon_dev_type.release = dummy_sysfs_dev_release;  in extcon_dev_register()
1238 		for (index = 0; index < edev->max_supported; index++)  in extcon_dev_register()
1239 			edev->extcon_dev_type.groups[index] =  in extcon_dev_register()
1240 				&edev->cables[index].attr_g;  in extcon_dev_register()
1241 		if (edev->mutually_exclusive)  in extcon_dev_register()
1242 			edev->extcon_dev_type.groups[index] =  in extcon_dev_register()
1243 				&edev->attr_g_muex;  in extcon_dev_register()
1245 		edev->dev.type = &edev->extcon_dev_type;  in extcon_dev_register()
1248 	ret = device_register(&edev->dev);  in extcon_dev_register()
1250 		put_device(&edev->dev);  in extcon_dev_register()
1254 	spin_lock_init(&edev->lock);  in extcon_dev_register()
1255 	edev->nh = devm_kcalloc(&edev->dev, edev->max_supported,  in extcon_dev_register()
1256 				sizeof(*edev->nh), GFP_KERNEL);  in extcon_dev_register()
1257 	if (!edev->nh) {  in extcon_dev_register()
1262 	for (index = 0; index < edev->max_supported; index++)  in extcon_dev_register()
1263 		RAW_INIT_NOTIFIER_HEAD(&edev->nh[index]);  in extcon_dev_register()
1265 	RAW_INIT_NOTIFIER_HEAD(&edev->nh_all);  in extcon_dev_register()
1267 	dev_set_drvdata(&edev->dev, edev);  in extcon_dev_register()
1268 	edev->state = 0;  in extcon_dev_register()
1271 	list_add(&edev->entry, &extcon_dev_list);  in extcon_dev_register()
1277 	if (edev->max_supported)  in extcon_dev_register()
1278 		kfree(edev->extcon_dev_type.groups);  in extcon_dev_register()
1280 	if (edev->max_supported && edev->mutually_exclusive) {  in extcon_dev_register()
1281 		for (index = 0; edev->mutually_exclusive[index]; index++)  in extcon_dev_register()
1282 			kfree(edev->d_attrs_muex[index].attr.name);  in extcon_dev_register()
1283 		kfree(edev->d_attrs_muex);  in extcon_dev_register()
1284 		kfree(edev->attrs_muex);  in extcon_dev_register()
1287 	for (index = 0; index < edev->max_supported; index++)  in extcon_dev_register()
1288 		kfree(edev->cables[index].attr_g.name);  in extcon_dev_register()
1290 	if (edev->max_supported)  in extcon_dev_register()
1291 		kfree(edev->cables);  in extcon_dev_register()
1304 void extcon_dev_unregister(struct extcon_dev *edev)  in extcon_dev_unregister()  argument
1308 	if (!edev)  in extcon_dev_unregister()
1312 	list_del(&edev->entry);  in extcon_dev_unregister()
1315 	if (IS_ERR_OR_NULL(get_device(&edev->dev))) {  in extcon_dev_unregister()
1316 		dev_err(&edev->dev, "Failed to unregister extcon_dev (%s)\n",  in extcon_dev_unregister()
1317 				dev_name(&edev->dev));  in extcon_dev_unregister()
1321 	device_unregister(&edev->dev);  in extcon_dev_unregister()
1323 	if (edev->mutually_exclusive && edev->max_supported) {  in extcon_dev_unregister()
1324 		for (index = 0; edev->mutually_exclusive[index];  in extcon_dev_unregister()
1326 			kfree(edev->d_attrs_muex[index].attr.name);  in extcon_dev_unregister()
1327 		kfree(edev->d_attrs_muex);  in extcon_dev_unregister()
1328 		kfree(edev->attrs_muex);  in extcon_dev_unregister()
1331 	for (index = 0; index < edev->max_supported; index++)  in extcon_dev_unregister()
1332 		kfree(edev->cables[index].attr_g.name);  in extcon_dev_unregister()
1334 	if (edev->max_supported) {  in extcon_dev_unregister()
1335 		kfree(edev->extcon_dev_type.groups);  in extcon_dev_unregister()
1336 		kfree(edev->cables);  in extcon_dev_unregister()
1339 	put_device(&edev->dev);  in extcon_dev_unregister()
1353 	struct extcon_dev *edev;  in extcon_find_edev_by_node()  local
1356 	list_for_each_entry(edev, &extcon_dev_list, entry)  in extcon_find_edev_by_node()
1357 		if (edev->dev.parent && edev->dev.parent->of_node == node)  in extcon_find_edev_by_node()
1359 	edev = ERR_PTR(-EPROBE_DEFER);  in extcon_find_edev_by_node()
1363 	return edev;  in extcon_find_edev_by_node()
1376 	struct extcon_dev *edev;  in extcon_get_edev_by_phandle()  local
1393 	edev = extcon_find_edev_by_node(node);  in extcon_get_edev_by_phandle()
1396 	return edev;  in extcon_get_edev_by_phandle()
1420 const char *extcon_get_edev_name(struct extcon_dev *edev)  in extcon_get_edev_name()  argument
1422 	return !edev ? NULL : edev->name;  in extcon_get_edev_name()