staging: comedi: cb_pcimdas: add 8254 timer (pacer) support
The hardware has an 8254 timer/counter. Channe; 0 is available as a
generic counter/timer with the clock, gate, and output signals all
availabe on the main 37 pin connector. Channels 1 and 2 are used for
the pacer.
Add support for the 8254 timer.
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>