tree 0a778159cf89ddee9e7d3134ae40569bdccd2a24
parent f9b9e806ae0ede772cbb9916d9ac7354a123d044
author Rafael J. Wysocki <rjw@sisk.pl> 1300146226 +0100
committer Rafael J. Wysocki <rjw@sisk.pl> 1300146226 +0100

PM / Core: Introduce struct syscore_ops for core subsystems PM

Some subsystems need to carry out suspend/resume and shutdown
operations with one CPU on-line and interrupts disabled.  The only
way to register such operations is to define a sysdev class and
a sysdev specifically for this purpose which is cumbersome and
inefficient.  Moreover, the arguments taken by sysdev suspend,
resume and shutdown callbacks are practically never necessary.

For this reason, introduce a simpler interface allowing subsystems
to register operations to be executed very late during system suspend
and shutdown and very early during resume in the form of
strcut syscore_ops objects.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>