[PATCH v4 0/4] ARM: OMAP2+: AM33XX: VDD CORE OPP50 support | linux-arm-kernel

(off-list ancestor, not in this archive)

On Thu, Aug 29, 2013 at 11:03 AM, Mark Brown [off-list ref] wrote:
On Thu, Aug 29, 2013 at 10:47:04AM -0700, Russ Dill wrote:
On Thu, Aug 29, 2013 at 10:30 AM, Mark Brown [off-list ref] wrote:

So this is done from cpuidle rather than system suspend.

It is done for system suspend. It isn't possible to do this in a
cpuidle use case as the memory controller would need to come out of
idle automatically to service DMA requests.
OK, so it's all part of the core power down sequence for the SoC?  I'm
not sure that makes a big difference but it at least means that there
are fewer runtime interactions to worry about.
 Well, core suspend sequence for the SoC.

I mean describe the intended sequence of events in the system rather
than the raw register commands to accomplish them.

I'm still not sure what you mean.
Say "set voltage X" or even "regulator X supplies Y" not "send this
bytestream to the device".
That's already known at the SoC level, "set the vdd core regulator to
0.95V". What isn't known is how to do that for each board.

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