---

yaml --- r: 172353 b: refs/heads/master c: 7a1a8eb h: refs/heads/master i: 172351: dbb3230 v: v3
git-mirror · Dec 6, 2009 · fa506c0 · fa506c0
1 parent 8f01735
commit fa506c0
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Showing 4 changed files with 23 additions and 6 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 965c4ac0613b071d6f035334c5d9d942013df4f9
+refs/heads/master: 7a1a8eb58a2c6cd819d17332c5a2c369203635d5
diff --git a/trunk/Documentation/power/runtime_pm.txt b/trunk/Documentation/power/runtime_pm.txt
@@ -71,9 +71,9 @@ what to do to handle the device).
     purpose).
 
 In particular, if the driver requires remote wakeup capability for proper
-functioning and device_may_wakeup() returns 'false' for the device, then
+functioning and device_run_wake() returns 'false' for the device, then
 ->runtime_suspend() should return -EBUSY.  On the other hand, if
-device_may_wakeup() returns 'true' for the device and the device is put
+device_run_wake() returns 'true' for the device and the device is put
 into a low power state during the execution of its bus type's
 ->runtime_suspend(), it is expected that remote wake-up (i.e. hardware mechanism
 allowing the device to request a change of its power state, such as PCI PME)
@@ -215,6 +215,9 @@ defined in include/linux/pm.h:
       being executed for that device and it is not practical to wait for the
       suspend to complete; means "start a resume as soon as you've suspended"
 
+  unsigned int run_wake;
+    - set if the device is capable of generating run-time wake-up events
+
   enum rpm_status runtime_status;
     - the run-time PM status of the device; this field's initial value is
       RPM_SUSPENDED, which means that each device is initially regarded by the

diff --git a/trunk/include/linux/pm.h b/trunk/include/linux/pm.h
@@ -178,9 +178,10 @@ typedef struct pm_message {
  *	This need not mean that the device should be put into a low power state.
  *	For example, if the device is behind a link which is about to be turned
  *	off, the device may remain at full power.  If the device does go to low
- *	power and if device_may_wakeup(dev) is true, remote wake-up (i.e., a
- *	hardware mechanism allowing the device to request a change of its power
- *	state, such as PCI PME) should be enabled for it.
+ *	power and is capable of generating run-time wake-up events, remote
+ *	wake-up (i.e., a hardware mechanism allowing the device to request a
+ *	change of its power state via a wake-up event, such as PCI PME) should
+ *	be enabled for it.
  *
  * @runtime_resume: Put the device into the fully active state in response to a
  *	wake-up event generated by hardware or at the request of software.  If
@@ -428,6 +429,7 @@ struct dev_pm_info {
 	unsigned int		idle_notification:1;
 	unsigned int		request_pending:1;
 	unsigned int		deferred_resume:1;
+	unsigned int		run_wake:1;
 	enum rpm_request	request;
 	enum rpm_status		runtime_status;
 	int			runtime_error;

diff --git a/trunk/include/linux/pm_runtime.h b/trunk/include/linux/pm_runtime.h
@@ -50,6 +50,16 @@ static inline void pm_runtime_put_noidle(struct device *dev)
 	atomic_add_unless(&dev->power.usage_count, -1, 0);
 }
 
+static inline bool device_run_wake(struct device *dev)
+{
+	return dev->power.run_wake;
+}
+
+static inline void device_set_run_wake(struct device *dev, bool enable)
+{
+	dev->power.run_wake = enable;
+}
+
 #else /* !CONFIG_PM_RUNTIME */
 
 static inline int pm_runtime_idle(struct device *dev) { return -ENOSYS; }
@@ -73,6 +83,8 @@ static inline bool pm_children_suspended(struct device *dev) { return false; }
 static inline void pm_suspend_ignore_children(struct device *dev, bool en) {}
 static inline void pm_runtime_get_noresume(struct device *dev) {}
 static inline void pm_runtime_put_noidle(struct device *dev) {}
+static inline bool device_run_wake(struct device *dev) { return false; }
+static inline void device_set_run_wake(struct device *dev, bool enable) {}
 
 #endif /* !CONFIG_PM_RUNTIME */