Re: [PATCH v2 0/9] CPU enable method based SMP/hotplug + MSM conversion

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On Tuesday 24 December 2013, Stephen Boyd wrote:
> This is a rework of patches sent a months back by Rohit[1].
> The goal of these patches is to add support for SMP and (basic)
> hotplug on MSM based SoCs. To get there, we add support for a
> generic way to hook in SMP/hotplug support code based on DT. To
> show how it's used, we convert the MSM8660 SMP support code over
> to the new method. After that we add support for the rest of the
> upstream MSM SoCs (note these patches are piled high on top of
> Rohit's patches to add 8074 support to MSM[2] and my follow ups[3,4],
> but this should only matter to the MSM maintainers).
> 
> This is one of the last items of code that still requires us to have
> a mach directory and a machine descriptor. We should be able to move
> the hotplug/smp code out of mach directories if this approach is
> accepted.

The implementation looks ok to me, but I wonder whether on a global
scale we want to tie it more closely to the cpuidle implementations.
We already have a drivers/cpuidle framework, and while I admit
that I'm not familiar with the code in there, I would assume that
the smp operations and the cpuidle code usually go hand in hand.

	Arnd
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