staging: comedi: amplc_dio200_common: convert driver to use the comedi_8254 module

Convert this driver to use the comedi_8254 module to provide the 8254 timer support.

Add 'clock_src' and 'gate_src' members to the comedi_8254 data for convienence.
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/Kconfig

@@ -1275,6 +1275,7 @@ config COMEDI_KCOMEDILIB
 	  called kcomedilib.
 
 config COMEDI_AMPLC_DIO200
+	select COMEDI_8254
 	tristate
 
 config COMEDI_AMPLC_PC236

drivers/staging/comedi/drivers/comedi_8254.h

@@ -71,6 +71,8 @@
  * #next_div:		next divisor for single counter
  * @next_div1:		next divisor to use for first cascaded counter
  * @next_div2:		next divisor to use for second cascaded counter
+ * @clock_src;		current clock source for each counter (driver specific)
+ * @gate_src;		current gate source  for each counter (driver specific)
  * @busy:		flags used to indicate that a counter is "busy"
  * @insn_config:	driver specific (*insn_config) callback
  */
@@ -86,6 +88,8 @@ struct comedi_8254 {
 	unsigned int next_div;
 	unsigned int next_div1;
 	unsigned int next_div2;
+	unsigned int clock_src[3];
+	unsigned int gate_src[3];
 	bool busy[3];
 
 	int (*insn_config)(struct comedi_device *, struct comedi_subdevice *s,