diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h
index c511def48b48621ba8ed13b84e23d34b1e47a899..ec33fbdb919b3506219928a52267de1a6275aa8b 100644
--- a/drivers/base/power/power.h
+++ b/drivers/base/power/power.h
@@ -21,6 +21,7 @@ static inline void pm_runtime_early_init(struct device *dev)
extern void pm_runtime_init(struct device *dev);
extern void pm_runtime_reinit(struct device *dev);
extern void pm_runtime_remove(struct device *dev);
+extern u64 pm_runtime_active_time(struct device *dev);
#define WAKE_IRQ_DEDICATED_ALLOCATED BIT(0)
#define WAKE_IRQ_DEDICATED_MANAGED BIT(1)
diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c
index 3382542b39b77fc0af6676f7be940f4d0a5c331f..f80e402ef778621511b72942f6697c1d74a112c4 100644
--- a/drivers/base/power/qos.c
+++ b/drivers/base/power/qos.c
@@ -22,7 +22,7 @@
* per-device constraint data struct.
*
* Note about the per-device constraint data struct allocation:
- * . The per-device constraints data struct ptr is tored into the device
+ * . The per-device constraints data struct ptr is stored into the device
* dev_pm_info.
* . To minimize the data usage by the per-device constraints, the data struct
* is only allocated at the first call to dev_pm_qos_add_request.
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 78937c45278c4445853dac5c332c5f772a587553..a2d22e3ecf3a63212eebe96d35bb93bca6955bc0 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -64,7 +64,7 @@ static int rpm_suspend(struct device *dev, int rpmflags);
* runtime_status field is updated, to account the time in the old state
* correctly.
*/
-void update_pm_runtime_accounting(struct device *dev)
+static void update_pm_runtime_accounting(struct device *dev)
{
u64 now, last, delta;
@@ -98,7 +98,7 @@ static void __update_runtime_status(struct device *dev, enum rpm_status status)
dev->power.runtime_status = status;
}
-u64 pm_runtime_suspended_time(struct device *dev)
+static u64 rpm_get_accounted_time(struct device *dev, bool suspended)
{
u64 time;
unsigned long flags;
@@ -106,12 +106,22 @@ u64 pm_runtime_suspended_time(struct device *dev)
spin_lock_irqsave(&dev->power.lock, flags);
update_pm_runtime_accounting(dev);
- time = dev->power.suspended_time;
+ time = suspended ? dev->power.suspended_time : dev->power.active_time;
spin_unlock_irqrestore(&dev->power.lock, flags);
return time;
}
+
+u64 pm_runtime_active_time(struct device *dev)
+{
+ return rpm_get_accounted_time(dev, false);
+}
+
+u64 pm_runtime_suspended_time(struct device *dev)
+{
+ return rpm_get_accounted_time(dev, true);
+}
EXPORT_SYMBOL_GPL(pm_runtime_suspended_time);
/**
diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
index c6bf76124184c07ebdc0a10ea974b954f4f2489b..1226e441ddfede746d5652076e4396d41f3fa86f 100644
--- a/drivers/base/power/sysfs.c
+++ b/drivers/base/power/sysfs.c
@@ -125,13 +125,9 @@ static ssize_t runtime_active_time_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret;
- u64 tmp;
- spin_lock_irq(&dev->power.lock);
- update_pm_runtime_accounting(dev);
- tmp = dev->power.active_time;
+ u64 tmp = pm_runtime_active_time(dev);
do_div(tmp, NSEC_PER_MSEC);
ret = sprintf(buf, "%llu\n", tmp);
- spin_unlock_irq(&dev->power.lock);
return ret;
}
@@ -141,13 +137,9 @@ static ssize_t runtime_suspended_time_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret;
- u64 tmp;
- spin_lock_irq(&dev->power.lock);
- update_pm_runtime_accounting(dev);
- tmp = dev->power.suspended_time;
+ u64 tmp = pm_runtime_suspended_time(dev);
do_div(tmp, NSEC_PER_MSEC);
ret = sprintf(buf, "%llu\n", tmp);
- spin_unlock_irq(&dev->power.lock);
return ret;
}
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index d0e77d56c1d9afdd0dbbae2789e3b9efcfaad707..bb1ae175fae136a57cd85e7566af617706e29232 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -108,23 +108,6 @@ struct wakeup_source *wakeup_source_create(const char *name)
}
EXPORT_SYMBOL_GPL(wakeup_source_create);
-/**
- * wakeup_source_drop - Prepare a struct wakeup_source object for destruction.
- * @ws: Wakeup source to prepare for destruction.
- *
- * Callers must ensure that __pm_stay_awake() or __pm_wakeup_event() will never
- * be run in parallel with this function for the same wakeup source object.
- */
-void wakeup_source_drop(struct wakeup_source *ws)
-{
- if (!ws)
- return;
-
- del_timer_sync(&ws->timer);
- __pm_relax(ws);
-}
-EXPORT_SYMBOL_GPL(wakeup_source_drop);
-
/*
* Record wakeup_source statistics being deleted into a dummy wakeup_source.
*/
@@ -164,7 +147,7 @@ void wakeup_source_destroy(struct wakeup_source *ws)
if (!ws)
return;
- wakeup_source_drop(ws);
+ __pm_relax(ws);
wakeup_source_record(ws);
kfree_const(ws->name);
kfree(ws);
@@ -207,6 +190,13 @@ void wakeup_source_remove(struct wakeup_source *ws)
list_del_rcu(&ws->entry);
raw_spin_unlock_irqrestore(&events_lock, flags);
synchronize_srcu(&wakeup_srcu);
+
+ del_timer_sync(&ws->timer);
+ /*
+ * Clear timer.function to make wakeup_source_not_registered() treat
+ * this wakeup source as not registered.
+ */
+ ws->timer.function = NULL;
}
EXPORT_SYMBOL_GPL(wakeup_source_remove);
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 06f7ed8939286d6bf3ae75d334d369508dc47a71..66c19a65a514087f8d31752bc90711796cd24299 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -643,7 +643,6 @@ struct dev_pm_info {
struct dev_pm_qos *qos;
};
-extern void update_pm_runtime_accounting(struct device *dev);
extern int dev_pm_get_subsys_data(struct device *dev);
extern void dev_pm_put_subsys_data(struct device *dev);
diff --git a/include/linux/pm_wakeup.h b/include/linux/pm_wakeup.h
index 4238dde0aaf033d62fe7958d6e1387045f721dfd..0ff134d6575a9584e290de90ad929fdbf6c8f146 100644
--- a/include/linux/pm_wakeup.h
+++ b/include/linux/pm_wakeup.h
@@ -96,7 +96,6 @@ static inline void device_set_wakeup_path(struct device *dev)
/* 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);
@@ -134,8 +133,6 @@ 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) {}
@@ -204,12 +201,6 @@ static inline void wakeup_source_init(struct wakeup_source *ws,
wakeup_source_add(ws);
}
-static inline void wakeup_source_trash(struct wakeup_source *ws)
-{
- wakeup_source_remove(ws);
- wakeup_source_drop(ws);
-}
-
static inline void __pm_wakeup_event(struct wakeup_source *ws, unsigned int msec)
{
return pm_wakeup_ws_event(ws, msec, false);