PM: Rework shmobile and OMAP runtime PM using power domains (v2)

Hi,

Taking the feedback from the last version of the patchset into account
I reworked patches [7/9] and [8/9] so that multiple clocks can be used for
runtime PM.  I also fixed a couple of build issues (the patches have been
built for x86, ARM/shmobile and ARM/OMAP1).

On Sunday, April 17, 2011, Rafael J. Wysocki wrote:
> Hi,
> 
> The following series of patches is my attempt to consolidate the shmobile and
> OMAP runtime PM code using power domains so that it is not necessary to
> replace the platform bus type's runtime PM callbacks any more.
> 
> Some of the patches have already been posted, some are new and some are
> from Kevin. :-)

The high-level description of what the patches do hasn't changed, so:

[1/9] - Make power domain callbacks take precedence over subsystem ones
        (this one has been discussed already).

[2/9] - Export the platform bus type's default PM callbacks so that they
        can be used in power domain objects.

[3/9] - Use a default power domain for runtime PM on shmobile (both ARM
        and SH flavors) instead of replacing the platform bus type's
        runtime PM callbacks (using __weak).

[4/9] - Use generic runtime PM callbacks directly in the platform bus type.

[5/9] - Move OMAP2 runtime PM implementation to using a power domain object
        (patch from Kevin rebased on top of [1-4/9]).

[6/9] - Add subsystem data field to struct dev_pm_info.

[7/9] - Introduce generic clock manipulation routines for runtime PM and
        convert ARM shmobile to using them.

[8/9] - Move OMAP1 runtime PM to the new core infrastructure.

[9/9] - Remove platform_bus_set_pm_ops() (patch from Kevin).

If there are no objections (or reports of breakage), I'd like to push these
patches through the suspend-2.6 tree in the 2.6.40 merge window.

Thanks,
Rafael
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