From: Mark A. Greer <mgreer@animalcreek.com>
Date: Tue, 25 Mar 2014 15:54:33 +0000 (-0700)
Subject: NFC: trf7970a: Only write 'ISO Control' when its changing
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~36^2~122^2^2~18^2~35
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=49d19cc794e73c3383283a5366ff31572d71a795;p=pandora-kernel.git

NFC: trf7970a: Only write 'ISO Control' when its changing

The current code always writes to the 'ISO Control' register when the
RF framing is set.  That's not necessary since the register's value
doesn't always change. Instead, only write to it when its value is
actually being changed.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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