From: H Hartley Sweeten <hartleys@visionengravers.com>
Date: Thu, 25 Oct 2012 22:11:23 +0000 (-0700)
Subject: staging: comedi: me_daq: cleanup me_dio_insn_bits()
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~84^2~920
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ec6521a20431723ff4fa15fdefb386184075baa2;p=pandora-kernel.git

staging: comedi: me_daq: cleanup me_dio_insn_bits()

This function only needs to update the output channel state when
the 'mask' (data[0]) indicates that the state is changing. It's
also supposed to return the state for all the input and output
channels in data[1].

This function appears to work correctly but it's coded quite
differently form the other comedi drivers. Rework the function so
it follows the normal form. Also, use a couple local variables
for the mmio addresses used to read/write the dio ports.

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