staging: comedi: pcmmio: cleanup ai_rinsn()
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Mon, 9 Dec 2013 22:30:41 +0000 (15:30 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 17 Dec 2013 18:01:50 +0000 (10:01 -0800)
commit8b0fcb59922dae8215ae0380c3a41c5affca02da
tree6a8bc0c2be449df138a459a2687eb987046c87c4
parent5fde07640cc9905f961afd5b78d2269e157eea7c
staging: comedi: pcmmio: cleanup ai_rinsn()

Rename this function to have namespace associated with the driver.

Refactor the function to remove the extra write to the command register
between each ADC conversion. We only need to do one dummy conversion in
order to flush the serial ADC. After that each command will return the
result of the previous conversion.

Define the register map for the analog input registers.

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/pcmmio.c