PM / Sleep: Add more wakeup source initialization routines
The existing wakeup source initialization routines are not
particularly useful for wakeup sources that aren't created by
wakeup_source_create(), because their users have to open code
filling the objects with zeros and setting their names. For this
reason, introduce routines that can be used for initializing, for
example, static wakeup source objects.
Requested-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
diff --git a/include/linux/pm_wakeup.h b/include/linux/pm_wakeup.h
index a32da96..d9f0511 100644
--- a/include/linux/pm_wakeup.h
+++ b/include/linux/pm_wakeup.h
@@ -41,7 +41,7 @@
* @active: Status of the wakeup source.
*/
struct wakeup_source {
- char *name;
+ const char *name;
struct list_head entry;
spinlock_t lock;
struct timer_list timer;
@@ -73,7 +73,9 @@
}
/* drivers/base/power/wakeup.c */
+extern void wakeup_source_prepare(struct wakeup_source *ws, const char *name);
extern struct wakeup_source *wakeup_source_create(const char *name);
+extern void wakeup_source_drop(struct wakeup_source *ws);
extern void wakeup_source_destroy(struct wakeup_source *ws);
extern void wakeup_source_add(struct wakeup_source *ws);
extern void wakeup_source_remove(struct wakeup_source *ws);
@@ -103,11 +105,16 @@
return dev->power.can_wakeup;
}
+static inline void wakeup_source_prepare(struct wakeup_source *ws,
+ const char *name) {}
+
static inline struct wakeup_source *wakeup_source_create(const char *name)
{
return NULL;
}
+static inline void wakeup_source_drop(struct wakeup_source *ws) {}
+
static inline void wakeup_source_destroy(struct wakeup_source *ws) {}
static inline void wakeup_source_add(struct wakeup_source *ws) {}
@@ -165,4 +172,17 @@
#endif /* !CONFIG_PM_SLEEP */
+static inline void wakeup_source_init(struct wakeup_source *ws,
+ const char *name)
+{
+ wakeup_source_prepare(ws, name);
+ wakeup_source_add(ws);
+}
+
+static inline void wakeup_source_trash(struct wakeup_source *ws)
+{
+ wakeup_source_remove(ws);
+ wakeup_source_drop(ws);
+}
+
#endif /* _LINUX_PM_WAKEUP_H */