From: Yinghai Lu <yinghai@kernel.org>
Date: Fri, 20 Sep 2013 17:43:56 +0000 (-0700)
Subject: acpi-cpufreq: skip loading acpi_cpufreq after intel_pstate
X-Git-Tag: v3.12-rc3~12^2^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a61e12e84597b5f8155ac91b44dea866ccfaac2;p=pandora-kernel.git

acpi-cpufreq: skip loading acpi_cpufreq after intel_pstate

If the hw supports intel_pstate and acpi_cpufreq, intel_pstate will
get loaded first.

acpi_cpufreq_init() will call acpi_cpufreq_early_init()
and that will allocate perf data and init those perf data in ACPI core,
(that will cover all CPUs). But later it will free them as
cpufreq_register_driver(acpi_cpufreq) will fail as intel_pstate is
already registered

Use cpufreq_get_current_driver() to check if we can skip the
acpi_cpufreq loading.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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