From: Axel Lin <axel.lin@gmail.com>
Date: Mon, 31 Oct 2011 06:24:30 +0000 (+0800)
Subject: mfd: Set tps6586x bits if new value is different from the old one
X-Git-Tag: v3.2-rc7~14^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26bc4e0cc5426e86398d6780d160f02c0a347087;p=pandora-kernel.git

mfd: Set tps6586x bits if new value is different from the old one

It does not make sense to write new value only when all the bit_mask
bits are zero.
We need to write new value if the bit mask fields of new value is
not equal to old value.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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