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-rw-r--r--include/linux/extcon.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index f488145bb2d4..36f49c405dfb 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -185,9 +185,22 @@ struct extcon_specific_cable_nb {
*/
extern int extcon_dev_register(struct extcon_dev *edev);
extern void extcon_dev_unregister(struct extcon_dev *edev);
+extern int devm_extcon_dev_register(struct device *dev,
+ struct extcon_dev *edev);
+extern void devm_extcon_dev_unregister(struct device *dev,
+ struct extcon_dev *edev);
extern struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name);
/*
+ * Following APIs control the memory of extcon device.
+ */
+extern struct extcon_dev *extcon_dev_allocate(const char **cables);
+extern void extcon_dev_free(struct extcon_dev *edev);
+extern struct extcon_dev *devm_extcon_dev_allocate(struct device *dev,
+ const char **cables);
+extern void devm_extcon_dev_free(struct device *dev, struct extcon_dev *edev);
+
+/*
* get/set/update_state access the 32b encoded state value, which represents
* states of all possible cables of the multistate port. For example, if one
* calls extcon_set_state(edev, 0x7), it may mean that all the three cables
@@ -254,6 +267,30 @@ static inline int extcon_dev_register(struct extcon_dev *edev)
static inline void extcon_dev_unregister(struct extcon_dev *edev) { }
+static inline int devm_extcon_dev_register(struct device *dev,
+ struct extcon_dev *edev)
+{
+ return -EINVAL;
+}
+
+static inline void devm_extcon_dev_unregister(struct device *dev,
+ struct extcon_dev *edev) { }
+
+static inline struct extcon_dev *extcon_dev_allocate(const char **cables)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
+static inline void extcon_dev_free(struct extcon_dev *edev) { }
+
+static inline struct extcon_dev *devm_extcon_dev_allocate(struct device *dev,
+ const char **cables)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
+static inline void devm_extcon_dev_free(struct extcon_dev *edev) { }
+
static inline u32 extcon_get_state(struct extcon_dev *edev)
{
return 0;