From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Thu, 16 Dec 2010 15:49:37 +0000 (+0000)
Subject: regulator: Optimise out noop voltage changes
X-Git-Tag: v2.6.38-rc1~242^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=95a3c23ae620c1b4c499746e70f4034bdc067737;p=pandora-kernel.git

regulator: Optimise out noop voltage changes

If a consumer sets the same voltage range as is currently configured
for that consumer there's no need to run through setting the voltage
again. This pattern may occur with some CPUfreq implementations where
the same voltage range is used for multiple frequencies.

Reported-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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