From: Axel Lin <axel.lin@gmail.com>
Date: Fri, 13 Apr 2012 01:30:05 +0000 (+0800)
Subject: regulator: s5m8767: Use DIV_ROUND_UP to calculate selector
X-Git-Tag: v3.5-rc1~177^2~57^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=94e85a3c5d702a4ce96b7a9b883c949a08ebd93c;p=pandora-kernel.git

regulator: s5m8767: Use DIV_ROUND_UP to calculate selector

Integer division may truncate the result.
Use DIV_ROUND_UP to ensure new voltage setting falls within specified range.

Also properly handle the case min_vol < desc->min to ensure we don't return
negative value for selector.

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