staging: comedi: adv_pci1710: remove 'has_counter' boardinfo

All the boards supported by this driver have a 8254 counter. Channels
1 and 2 are used to create the cascaded 32-bit analog input pacer.
Counter 0 is available for the user on all the boards except the PCI-1713.

Remove the 'has_counter' boardinfo and use the 'is_pci1713' boardinfo to
determine if the user counter subdevice needs to be allocated and
initialized.
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/adv_pci1710.c

@@ -138,7 +138,6 @@ struct boardtype {
 	unsigned int has_diff_ai:1;
 	unsigned int has_ao:1;
 	unsigned int has_di_do:1;
-	unsigned int has_counter:1;
 };
 
 static const struct boardtype boardtypes[] = {
@@ -151,7 +150,6 @@ static const struct boardtype boardtypes[] = {
 		.has_diff_ai	= 1,
 		.has_ao		= 1,
 		.has_di_do	= 1,
-		.has_counter	= 1,
 	},
 	[BOARD_PCI1710HG] = {
 		.name		= "pci1710hg",
@@ -162,7 +160,6 @@ static const struct boardtype boardtypes[] = {
 		.has_diff_ai	= 1,
 		.has_ao		= 1,
 		.has_di_do	= 1,
-		.has_counter	= 1,
 	},
 	[BOARD_PCI1711] = {
 		.name		= "pci1711",
@@ -171,7 +168,6 @@ static const struct boardtype boardtypes[] = {
 		.rangecode_ai	= range_codes_pci17x1,
 		.has_ao		= 1,
 		.has_di_do	= 1,
-		.has_counter	= 1,
 	},
 	[BOARD_PCI1713] = {
 		.name		= "pci1713",
@@ -791,7 +787,7 @@ static int pci1710_auto_attach(struct comedi_device *dev,
 		n_subdevices++;
 	if (board->has_di_do)
 		n_subdevices += 2;
-	if (board->has_counter)
+	if (!board->is_pci1713)	/* all other boards have a user counter */
 		n_subdevices++;
 
 	ret = comedi_alloc_subdevices(dev, n_subdevices);
@@ -866,8 +862,8 @@ static int pci1710_auto_attach(struct comedi_device *dev,
 		subdev++;
 	}
 
-	/* Counter subdevice (8254) */
-	if (board->has_counter) {
+	if (!board->is_pci1713) {
+		/* Counter subdevice (8254) */
 		s = &dev->subdevices[subdev];
 		comedi_8254_subdevice_init(s, dev->pacer);