staging: comedi: rtd520: remove 'aiChans' and 'aiBits' from boardinfo

All the boards supported by this driver have the same number of analog
input channels and resolution. Remove the boardinfo for this and just
open-code the values in the attach.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/rtd520.c

@@ -252,8 +252,6 @@ static const struct comedi_lrange rtd_ao_range = {
 struct rtdBoard {
 	const char *name;
 	int device_id;
-	int aiChans;
-	int aiBits;
 	int aiMaxGain;
 	int range10Start;	/* start of +-10V range */
 	int rangeUniStart;	/* start of +10V range */
@@ -263,16 +261,12 @@ static const struct rtdBoard rtd520Boards[] = {
 	{
 		.name		= "DM7520",
 		.device_id	= 0x7520,
-		.aiChans	= 16,
-		.aiBits		= 12,
 		.aiMaxGain	= 32,
 		.range10Start	= 6,
 		.rangeUniStart	= 12,
 	}, {
 		.name		= "PCI4520",
 		.device_id	= 0x4520,
-		.aiChans	= 16,
-		.aiBits		= 12,
 		.aiMaxGain	= 128,
 		.range10Start	= 8,
 		.rangeUniStart	= 16,
@@ -1340,8 +1334,8 @@ static int rtd_attach_pci(struct comedi_device *dev, struct pci_dev *pcidev)
 	/* analog input subdevice */
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_COMMON | SDF_DIFF;
-	s->n_chan = thisboard->aiChans;
-	s->maxdata = (1 << thisboard->aiBits) - 1;
+	s->n_chan = 16;
+	s->maxdata = 0x0fff;
 	if (thisboard->aiMaxGain <= 32)
 		s->range_table = &rtd_ai_7520_range;
 	else
@@ -1362,7 +1356,7 @@ static int rtd_attach_pci(struct comedi_device *dev, struct pci_dev *pcidev)
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
 	s->n_chan = 2;
-	s->maxdata = (1 << thisboard->aiBits) - 1;
+	s->maxdata = 0x0fff;
 	s->range_table = &rtd_ao_range;
 	s->insn_write = rtd_ao_winsn;
 	s->insn_read = rtd_ao_rinsn;