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PM / Runtime: Add macro to test for runtime PM events

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This patch (as1482) adds a macro for testing whether or not a
pm_message value represents an autosuspend or autoresume (i.e., a
runtime PM) event.  Encapsulating this notion seems preferable to
open-coding the test all over the place.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
This commit is contained in:
Alan Stern
2011-08-19 23:49:48 +02:00
committed by Rafael J. Wysocki
parent 311aab73d2
commit 5b1b0b812a
15 changed files with 32 additions and 32 deletions
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8
Documentation/usb/power-management.txt
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@ -439,10 +439,10 @@ cause autosuspends to fail with -EBUSY if the driver needs to use the
device.
External suspend calls should never be allowed to fail in this way,
only autosuspend calls. The driver can tell them apart by checking
the PM_EVENT_AUTO bit in the message.event argument to the suspend
method; this bit will be set for internal PM events (autosuspend) and
clear for external PM events.
only autosuspend calls. The driver can tell them apart by applying
the PMSG_IS_AUTO() macro to the message argument to the suspend
method; it will return True for internal PM events (autosuspend) and
False for external PM events.
Mutual exclusion