From: Dirk Brandewie <dirk.j.brandewie@intel.com>
Date: Wed, 19 Mar 2014 15:45:53 +0000 (-0700)
Subject: cpufreq: Add stop CPU callback to cpufreq_driver interface
X-Git-Tag: v3.15-rc1~151^2~2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=367dc4aa932bfb33a3189064d33f7890a8ec1ca8;p=pandora-kernel.git

cpufreq: Add stop CPU callback to cpufreq_driver interface

This callback allows the driver to do clean up before the CPU is
completely down and its state cannot be modified.  This is used
by the intel_pstate driver to reduce the requested P state prior to
the core going away.  This is required because the requested P state
of the offline core is used to select the package P state. This
effectively sets the floor package P state to the requested P state on
the offline core.

Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
[rjw: Minor modifications]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

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