From: Mark Brown <broonie@linaro.org>
Date: Tue, 2 Jul 2013 21:52:41 +0000 (+0100)
Subject: regulator: core: Add helpers for multiple linear ranges
X-Git-Tag: v3.12-rc1~191^2~10^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=94d33c02c7186b69849c292e1216a08ad1c0d99d;p=pandora-kernel.git

regulator: core: Add helpers for multiple linear ranges

Many regulators have several linear ranges of selector with different
step sizes, for example offering better resolution at lower voltages.
Provide regulator_{map,list}_voltage_linear_range() allowing these
regulators to use generic code. To do so a table of regulator_linear_range
structs needs to be pointed to from the descriptor.

This was inspired by similar code included in a driver submission from
Chao Xie and Yi Zhang at Marvell.

Signed-off-by: Mark Brown <broonie@linaro.org>
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