From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 30 Oct 2013 19:44:40 +0000 (-0400)
Subject: cpufreq: arm_big_little: add in-kernel switching (IKS) support
X-Git-Tag: v3.13-rc1~96^2~4^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e79a23c5b9870b7f80425793abeb10e57f7486d4;p=pandora-kernel.git

cpufreq: arm_big_little: add in-kernel switching (IKS) support

This patch adds IKS (In Kernel Switcher) support to cpufreq driver.

This creates a combined freq table for A7-A15 CPU pairs. A7 frequencies
are virtualized and scaled down to half the actual frequencies to
approximate a linear scale across the combined A7+A15 range. When the
requested frequency change crosses the A7-A15 boundary a cluster switch
is invoked.

Based on earlier work from Sudeep KarkadaNagesha.

Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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