From: Axel Lin <axel.lin@gmail.com>
Date: Wed, 18 Jul 2012 04:30:11 +0000 (+0800)
Subject: regulator: palmas: Fix calculating selector in palmas_map_voltage_ldo
X-Git-Tag: v3.6-rc3~24^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a5f8ae2154eeb7ed18c6e3dbf6ac095ea4c3d5cf;p=pandora-kernel.git

regulator: palmas: Fix calculating selector in palmas_map_voltage_ldo

This patch fixes below issues when choosing selector:

1. Current code returns negative selector if min_uV < 900000 which is wrong.
   For example, it is possible to satisfy the request with selector = 1 if
   the requested min_uV is 850000.
2. Current code may select a voltage lower than requested min_uV.
   For example, if the requested min_uV is 945000, current code chooses
   selector = 1 which is lower than requested min_uV.
   DIV_ROUND_UP to avoid this case.

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