tree 3877e2ab3665fe5eb4e5ca8f6f47e9222a519231
parent 4dd836e46c3ddcb2020646c867be589658440be0
author Mark A. Greer <mgreer@animalcreek.com> 1395762873 -0700
committer Samuel Ortiz <sameo@linux.intel.com> 1398119847 +0200

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>