cpufreq: handle SW coordinated CPUs

Hello Rafael,

this patchset is a new version of the cpufreq SW coordinated CPU bug fix.
That's basically the v4 rebased on linux-pm's linux-next tree, split in 5
patches for readability and with the bug fixed also in the "conservative"
governor.

Regards,
Fabio


Changes:
v5
- rebased/reimplemented on linux-next
- split hotplug code on a separate patch
- split ondemand/conservative specific fixes on separate patches
v4
- moved update_sampling rate code on separate patch
- simplified dbs_sw_coordinated_cpus
- reworked timer handling for code readability, now:
  * do_dbs_timer() [-> dbs_timer_coordinated()] -> dbs_timer_update()
- simplified cpu_callback cases
v3
- original submission


Fabio Baltieri (4):
  cpufreq: star/stop cpufreq timers on cpu hotplug
  cpufreq: ondemand: call dbs_check_cpu only when necessary
  cpufreq: conservative: call dbs_check_cpu only when necessary
  cpufreq: ondemand: use all CPUs in update_sampling_rate

Rickard Andersson (1):
  cpufreq: handle SW coordinated CPUs

 drivers/cpufreq/cpufreq_conservative.c |  46 ++++++++++++--
 drivers/cpufreq/cpufreq_governor.c     | 106 +++++++++++++++++++++++++++++++--
 drivers/cpufreq/cpufreq_governor.h     |   2 +
 drivers/cpufreq/cpufreq_ondemand.c     |  62 +++++++++++++++----
 4 files changed, 193 insertions(+), 23 deletions(-)

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1.7.12.1