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Version 0.2 - improved
Changelog:

       - added tuneables to be able to adjust values on early suspend (screen off) via sysfs instead
         of using only hardcoded defaults
       - modified hotplug implementation to be able to tune threshold range per core indepentently
         and to be able to manually turn cores offline

         for this functions following new tuneables were indroduced:

         sampling_rate_sleep_multiplier -> sampling rate multiplier on early suspend (possible values 1 or 2, default: 2)
         up_threshold_sleep             -> up threshold on early suspend (possible range from above 'down_threshold_sleep' up to 100, default: 90)
         down_threshold_sleep           -> down threshold on early suspend (possible range from 11 to 'under up_threshold_sleep', default: 44)
         smooth_up_sleep                -> smooth up scaling on early suspend (possible range from 1 to 100, default: 100)
         up_threshold_hotplug1          -> hotplug threshold for cpu1 (0 disable core1, possible range from 'down_threshold' up to 100, default: 68)
         up_threshold_hotplug2          -> hotplug threshold for cpu2 (0 disable core2, possible range from 'down_threshold' up to 100, default: 68)
         up_threshold_hotplug3          -> hotplug threshold for cpu3 (0 disable core3, possible range from 'down_threshold' up to 100, default: 68)
         down_threshold_hotplug1        -> hotplug threshold for cpu1 (possible range from 11 to under 'up_threshold', default: 55)
         down_threshold_hotplug2        -> hotplug threshold for cpu2 (possible range from 11 to under 'up_threshold', default: 55)
         down_threshold_hotplug3        -> hotplug threshold for cpu3 (possible range from 11 to under 'up_threshold', default: 55)

Change-Id: If4afa0cf75bf007f09efec42e094a82b5319a312
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zanezam authored and Gerrit Code Review committed May 18, 2014
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