From: Axel Lin <axel.lin@ingics.com>
Date: Wed, 6 Feb 2013 03:09:48 +0000 (+0800)
Subject: regulator: core: Optimize _regulator_do_set_voltage if voltage does not change
X-Git-Tag: v3.9-rc1~154^2~17^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c66a566afbe6e2c94b1ae70f70cc1e3d4c73639b;p=pandora-kernel.git

regulator: core: Optimize _regulator_do_set_voltage if voltage does not change

Optimize _regulator_do_set_voltage() for the case selector is equal to
old_selector. Since the voltage does not change, we don't need to call
set_voltage_sel() and set_voltage_time_sel() in this case.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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