diff options
| author | Chanwoo Choi <cw00.choi@samsung.com> | 2014-04-24 20:12:15 +0900 |
|---|---|---|
| committer | Max Krummenacher <max.krummenacher@toradex.com> | 2015-12-26 14:42:48 +0100 |
| commit | 474c9180af673c6cd8ae8d3057ee9b67b7c4a9d3 (patch) | |
| tree | 0cd18300efc9645c81392973217a0ed5028b717d /include | |
| parent | c8c7c372bd2046ba74acfb9f805e86dd75231b6c (diff) | |
extcon: Add devm_extcon_dev_allocate/free to manage the resource of extcon device
This patch add device managed devm_extcon_dev_{allocate,free} to automatically
free the memory of extcon_dev structure without handling free operation.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
(cherry picked from commit 739ba1bfdb15e773999aafddbd6c59b5737797a0)
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/extcon.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/linux/extcon.h b/include/linux/extcon.h index f488145bb2d4..3492e680fbdb 100644 --- a/include/linux/extcon.h +++ b/include/linux/extcon.h @@ -188,6 +188,15 @@ extern void extcon_dev_unregister(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 +263,30 @@ 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; |