[PATCH] extcon: Provide *extcon_*_notifier_all() stubs for !CONFIG_EXTCON

[Sebastian Andrzej Siewior <bigeasy@linutronix.de>]

CHARGER_MAX8997 fails to compile without CONFIG_EXTCON. There are stubs
already present for *extcon_*_notifier() but are missing for the _all()
variant.

Add *extcon_*_notifier_all() stubs for !CONFIG_EXTCON.

Fixes: f384989e88d44 ("power: supply: max8997_charger: Set CHARGER current limit")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
 include/linux/extcon.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index fd183fb9c20f7..8246307f9ed38 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -276,6 +276,30 @@ static inline struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name)
 	return ERR_PTR(-ENODEV);
 }
 
+static inline int extcon_register_notifier_all(struct extcon_dev *edev,
+					       struct notifier_block *nb)
+{
+	return -EINVAL;
+}
+
+static inline int extcon_unregister_notifier_all(struct extcon_dev *edev,
+						 struct notifier_block *nb)
+{
+	return 0;
+}
+
+static inline int devm_extcon_register_notifier_all(struct device *dev,
+						    struct extcon_dev *edev,
+						    struct notifier_block *nb)
+{
+	return -EINVAL;
+}
+
+static inline void devm_extcon_unregister_notifier_all(struct device *dev,
+						       struct extcon_dev *edev,
+						       struct notifier_block *nb)
+{ }
+
 static inline struct extcon_dev *extcon_find_edev_by_node(struct device_node *node)
 {
 	return ERR_PTR(-ENODEV);
-- 
2.30.2