staging: comedi: addi-data: remove unused 'i_NbrTTLChannel' boardinfo

None of the addi-data drivers that still use the "common" code have
ttl digital i/o. Remove the unnecessary boardinfo as well as the
subdevice initialization code.
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/addi-data/addi_common.c

@@ -39,10 +39,6 @@ PARTICULAR PURPOSE. See the GNU General Public License for more details.
   +-----------------------------------------------------------------------+
 */
 
-#ifndef COMEDI_SUBD_TTLIO
-#define COMEDI_SUBD_TTLIO   11	/* Digital Input Output But TTL */
-#endif
-
 static int i_ADDIDATA_InsnReadEeprom(struct comedi_device *dev,
 				     struct comedi_subdevice *s,
 				     struct comedi_insn *insn,
@@ -259,18 +255,7 @@ static int addi_auto_attach(struct comedi_device *dev,
 
 	/*  Allocate and Initialise TTL */
 	s = &dev->subdevices[5];
-	if (this_board->i_NbrTTLChannel) {
-		s->type = COMEDI_SUBD_TTLIO;
-		s->subdev_flags =
-			SDF_WRITEABLE | SDF_READABLE | SDF_GROUND | SDF_COMMON;
-		s->n_chan = this_board->i_NbrTTLChannel;
-		s->maxdata = 1;
-		s->io_bits = 0;	/* all bits input */
-		s->len_chanlist = this_board->i_NbrTTLChannel;
-		s->range_table = &range_digital;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
+	s->type = COMEDI_SUBD_UNUSED;
 
 	/* EEPROM */
 	s = &dev->subdevices[6];

drivers/staging/comedi/drivers/addi-data/addi_common.h

@@ -54,8 +54,6 @@ struct addi_board {
 	int i_NbrDoChannel;	/*  Number of DO channels */
 	int i_DoMaxdata;	/*  data to set all channels high */
 
-	int i_NbrTTLChannel;	/*  Number of TTL channels */
-
 	int i_Timer;		/*    timer subdevice present or not */
 	unsigned int ui_MinAcquisitiontimeNs;	/*  Minimum Acquisition in Nano secs */
 	unsigned int ui_MinDelaytimeNs;	/*  Minimum Delay in Nano secs */