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PM: Make ACPI wakeup from S5 work again when CONFIG_PM_SLEEP is unset

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Commit 074037e (PM / Wakeup: Introduce wakeup source objects and
event statistics (v3)) caused ACPI wakeup to only work if
CONFIG_PM_SLEEP is set, but it also worked for CONFIG_PM_SLEEP unset
before.  This can be fixed by making device_set_wakeup_enable(),
device_init_wakeup() and device_may_wakeup() work in the same way
as before commit 074037e when CONFIG_PM_SLEEP is unset.

Reported-and-tested-by: Justin Maggard <jmaggard10@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
This commit is contained in:
Rafael J. Wysocki
2011-02-24 11:10:01 +01:00
parent 2aa15890f3
commit 805bdaec1a
2 changed files with 16 additions and 11 deletions
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2
include/linux/pm.h
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@@ -431,6 +431,8 @@ struct dev_pm_info {
struct list_head entry; struct list_head entry;
struct completion completion; struct completion completion;
struct wakeup_source *wakeup; struct wakeup_source *wakeup;
#else
unsigned int should_wakeup:1;
#endif #endif
#ifdef CONFIG_PM_RUNTIME #ifdef CONFIG_PM_RUNTIME
struct timer_list suspend_timer; struct timer_list suspend_timer;

25
include/linux/pm_wakeup.h
View File

@@ -109,11 +109,6 @@ static inline bool device_can_wakeup(struct device *dev)
return dev->power.can_wakeup; return dev->power.can_wakeup;
} }
static inline bool device_may_wakeup(struct device *dev)
{
return false;
}
static inline struct wakeup_source *wakeup_source_create(const char *name) static inline struct wakeup_source *wakeup_source_create(const char *name)
{ {
return NULL; return NULL;
@@ -134,24 +129,32 @@ static inline void wakeup_source_unregister(struct wakeup_source *ws) {}
static inline int device_wakeup_enable(struct device *dev) static inline int device_wakeup_enable(struct device *dev)
{ {
return -EINVAL; dev->power.should_wakeup = true;
return 0;
} }
static inline int device_wakeup_disable(struct device *dev) static inline int device_wakeup_disable(struct device *dev)
{ {
dev->power.should_wakeup = false;
return 0;
}
static inline int device_set_wakeup_enable(struct device *dev, bool enable)
{
dev->power.should_wakeup = enable;
return 0; return 0;
} }
static inline int device_init_wakeup(struct device *dev, bool val) static inline int device_init_wakeup(struct device *dev, bool val)
{ {
dev->power.can_wakeup = val; device_set_wakeup_capable(dev, val);
return val ? -EINVAL : 0; device_set_wakeup_enable(dev, val);
return 0;
} }
static inline bool device_may_wakeup(struct device *dev)
static inline int device_set_wakeup_enable(struct device *dev, bool enable)
{ {
return -EINVAL; return dev->power.can_wakeup && dev->power.should_wakeup;
} }
static inline void __pm_stay_awake(struct wakeup_source *ws) {} static inline void __pm_stay_awake(struct wakeup_source *ws) {}