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Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6

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* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  PM / Runtime: Allow _put_sync() from interrupts-disabled context
  PM / Domains: Fix pm_genpd_poweron()
This commit is contained in:
Linus Torvalds 2011-08-06 13:26:37 -07:00
commit ce195d3284
3 changed files with 14 additions and 9 deletions
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10
Documentation/power/runtime_pm.txt
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@ -54,11 +54,10 @@ referred to as subsystem-level callbacks in what follows.
By default, the callbacks are always invoked in process context with interrupts
enabled. However, subsystems can use the pm_runtime_irq_safe() helper function
to tell the PM core that a device's ->runtime_suspend() and ->runtime_resume()
callbacks should be invoked in atomic context with interrupts disabled
(->runtime_idle() is still invoked the default way). This implies that these
callback routines must not block or sleep, but it also means that the
synchronous helper functions listed at the end of Section 4 can be used within
an interrupt handler or in an atomic context.
callbacks should be invoked in atomic context with interrupts disabled.
This implies that these callback routines must not block or sleep, but it also
means that the synchronous helper functions listed at the end of Section 4 can
be used within an interrupt handler or in an atomic context.
The subsystem-level suspend callback is _entirely_ _responsible_ for handling
the suspend of the device as appropriate, which may, but need not include
@ -483,6 +482,7 @@ pm_runtime_suspend()
pm_runtime_autosuspend()
pm_runtime_resume()
pm_runtime_get_sync()
pm_runtime_put_sync()
pm_runtime_put_sync_suspend()
5. Runtime PM Initialization, Device Probing and Removal