From a7d3d419f905e5a3203874e4b7a9e45d2167f2b5 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:53:50 -0700
Subject: [PATCH] staging: comedi: ni_at_ao: introduce atao_select_reg_group()

To clarify the code a bit, introduce a helper function to set/clear
the GRP2WR bit in the CFG1 register. This bit selects which group of
registers are used for the registers that share the same I/O addresses.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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