Messages in this thread | | | Date | Fri, 13 Sep 2013 09:53:09 +0530 | Subject | Re: [PATCH 2/2] cpufreq: make sure frequency transitions are serialized | From | Viresh Kumar <> |
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On 12 September 2013 15:40, Viresh Kumar <viresh.kumar@linaro.org> wrote: > Some part of this patch was pushed in mainline earlier but was then removed due > to loopholes in the patch. Those are now fixed and this patch is tested by the > people who reported these problems. > > Whenever we are changing frequency of a cpu, we are calling PRECHANGE and > POSTCHANGE notifiers. They must be serialized. i.e. PRECHANGE or POSTCHANGE > shouldn't be called twice contiguously. Also, calls to cpufreq_driver_target() > or cpufreq_driver->target() must also be serialized. Following examples show why > this is important:
Adding:
Tested-by: Stephen Warren <swarren@nvidia.com>
Picked from the other thread..
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