"cpufreq: fix serialization issues with freq change notifiers" breaks cpufreq too

[Rafael J. Wysocki]

On Thursday, September 12, 2013 11:06:14 AM Viresh Kumar wrote:
> On 12 September 2013 06:13, Rafael J. Wysocki
> <rafael.j.wysocki at intel.com> wrote:
> > Yes, if you can point to a specific driver having this problem.
> 
> There are so many of those (I know it because I went through almost all drivers
> recently with my cleanup series): cpufreq-cpu0, omap-cpufreq,
> exynos-cpufreq, etc..
> 
> They all do this:
> 
> A. If new freq is more than old: Increase voltage
> B. Change freq
> C. If new freq is less than old: decrease voltage

Well, if there's more than one it's even simpler.  You can just pick one. :-)

Like, "for example, <driver name> does the following ... which may cause the
hardware to misbehave, because ...".

Thanks,
Rafael