Re: [linux-pm] Notes from the Boston Linux Power Management Mini-summit- August 9th, 2010

[Bryan Huntsman]

Mark Brown wrote:
> On Sun, Aug 15, 2010 at 01:36:33AM -0400, Len Brown wrote:
>
> > A gap:
> >
> > On OMAP, bus control is independent of CPU frequency control,
> > so cpufreq and cpuidle don't quite fit the bill.
> >
> > Perhaps a "bus-idle" analogous to "cpu-idle" may be appropriate?
>
> FWIW this applies to a bunch of other embedded processors too - OMAP
> isn't particularly unique here, though it's one of the furthest along in
> terms of exploting this in mainline Linux.

This capability would benefit MSM as well.  We're looking into a 
soc-specific implementation using Pat Pannuto's "pseudo" platform bus 
extensions (discussed here http://lkml.org/lkml/2010/8/10/389).  After 
we have something working, I would be curious to see if some common 
functionality could be extracted into a more generic mechanism.

- Bryan

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