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-rw-r--r--Documentation/power/runtime_pm.txt10
-rw-r--r--drivers/base/power/runtime.c10
2 files changed, 13 insertions, 7 deletions
diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt
index 14dd3c6ad97e..4ce5450ab6e8 100644
--- a/Documentation/power/runtime_pm.txt
+++ b/Documentation/power/runtime_pm.txt
@@ -54,11 +54,10 @@ referred to as subsystem-level callbacks in what follows.
54By default, the callbacks are always invoked in process context with interrupts 54By default, the callbacks are always invoked in process context with interrupts
55enabled. However, subsystems can use the pm_runtime_irq_safe() helper function 55enabled. However, subsystems can use the pm_runtime_irq_safe() helper function
56to tell the PM core that a device's ->runtime_suspend() and ->runtime_resume() 56to tell the PM core that a device's ->runtime_suspend() and ->runtime_resume()
57callbacks should be invoked in atomic context with interrupts disabled 57callbacks should be invoked in atomic context with interrupts disabled.
58(->runtime_idle() is still invoked the default way). This implies that these 58This implies that these callback routines must not block or sleep, but it also
59callback routines must not block or sleep, but it also means that the 59means that the synchronous helper functions listed at the end of Section 4 can
60synchronous helper functions listed at the end of Section 4 can be used within 60be used within an interrupt handler or in an atomic context.
61an interrupt handler or in an atomic context.
62 61
63The subsystem-level suspend callback is _entirely_ _responsible_ for handling 62The subsystem-level suspend callback is _entirely_ _responsible_ for handling
64the suspend of the device as appropriate, which may, but need not include 63the suspend of the device as appropriate, which may, but need not include
@@ -483,6 +482,7 @@ pm_runtime_suspend()
483pm_runtime_autosuspend() 482pm_runtime_autosuspend()
484pm_runtime_resume() 483pm_runtime_resume()
485pm_runtime_get_sync() 484pm_runtime_get_sync()
485pm_runtime_put_sync()
486pm_runtime_put_sync_suspend() 486pm_runtime_put_sync_suspend()
487 487
4885. Runtime PM Initialization, Device Probing and Removal 4885. Runtime PM Initialization, Device Probing and Removal
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 8dc247c974af..acb3f83b8079 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -226,11 +226,17 @@ static int rpm_idle(struct device *dev, int rpmflags)
226 callback = NULL; 226 callback = NULL;
227 227
228 if (callback) { 228 if (callback) {
229 spin_unlock_irq(&dev->power.lock); 229 if (dev->power.irq_safe)
230 spin_unlock(&dev->power.lock);
231 else
232 spin_unlock_irq(&dev->power.lock);
230 233
231 callback(dev); 234 callback(dev);
232 235
233 spin_lock_irq(&dev->power.lock); 236 if (dev->power.irq_safe)
237 spin_lock(&dev->power.lock);
238 else
239 spin_lock_irq(&dev->power.lock);
234 } 240 }
235 241
236 dev->power.idle_notification = false; 242 dev->power.idle_notification = false;