staging: comedi: das1800: introduce das1800_isadma_disable()
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Tue, 13 Jan 2015 17:16:29 +0000 (10:16 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 17 Jan 2015 22:31:30 +0000 (14:31 -0800)
commitae4e131e0b5ab57313371aa7d773ac8b01fdb2c7
treed409f4d73e32c2f327bfb0cf86b885b398521964
parentdec3aa4fff19e00e2f5be6213adfa4124b93fc19
staging: comedi: das1800: introduce das1800_isadma_disable()

Introduce a helper function to disable and the ISA DMA controller and
return the residue as described in Documentation/DMA-ISA-LPC.txt.

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>
drivers/staging/comedi/drivers/das1800.c