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authorAlan Stern <stern@rowland.harvard.edu>2010-09-25 23:35:21 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2010-10-17 01:57:48 +0200
commit15bcb91d7e607d8a2e060f01f7784a7454668da4 (patch)
tree6d59964cb78ab4b7c93a3c4d06f0dad256b99140 /drivers/uio
parent7490e44239e60293bca0c2663229050c36c660c2 (diff)
PM / Runtime: Implement autosuspend support
This patch (as1427) implements the "autosuspend" facility for runtime PM. A few new fields are added to the dev_pm_info structure and several new PM helper functions are defined, for telling the PM core whether or not a device uses autosuspend, for setting the autosuspend delay, and for marking periods of device activity. Drivers that do not want to use autosuspend can continue using the same helper functions as before; their behavior will not change. In addition, drivers supporting autosuspend can also call the old helper functions to get the old behavior. The details are all explained in Documentation/power/runtime_pm.txt and Documentation/ABI/testing/sysfs-devices-power. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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