From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Thu, 30 Apr 2009 13:48:36 +0000 (+0100)
Subject: mfd: Keep a cache of WM8350 volatile values
X-Git-Tag: v2.6.30-rc7~19^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b126d113484886d900179b4ae55ea7fabe15f936;p=pandora-kernel.git

mfd: Keep a cache of WM8350 volatile values

Due to the way that the WM8350 audio driver handles CODEC_ENA many of
the WM8350 audio registers are marked as volatile when they aren't
actually so. Allow the audio driver to see a cache of these values for
inspection during interrupt context.

To do this we need to stop satisfying any bits from volatile registers
from cache - there's no real benefit from doing so anyway, we did the
read already.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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