staging: comedi: addi_apci_1516: cleanup the s->subdev_flags

The flags SDF_GROUND and SDF_COMMON only have meaning for analog
input/output subdevices. Remove these flags from the digital
input/output and timer subdevices in this driver.

The digital output subdevice does not need the SDF_READABLE flags.
Remove it.
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/addi_apci_1516.c

@@ -238,7 +238,7 @@ static int __devinit apci1516_auto_attach(struct comedi_device *dev,
 	s = &dev->subdevices[0];
 	if (this_board->di_nchan) {
 		s->type = COMEDI_SUBD_DI;
-		s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_COMMON;
+		s->subdev_flags = SDF_READABLE;
 		s->n_chan = this_board->di_nchan;
 		s->maxdata = 1;
 		s->range_table = &range_digital;
@@ -250,8 +250,7 @@ static int __devinit apci1516_auto_attach(struct comedi_device *dev,
 	s = &dev->subdevices[1];
 	if (this_board->do_nchan) {
 		s->type = COMEDI_SUBD_DO;
-		s->subdev_flags =
-			SDF_READABLE | SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
+		s->subdev_flags = SDF_WRITEABLE;
 		s->n_chan = this_board->do_nchan;
 		s->maxdata = 1;
 		s->range_table = &range_digital;
@@ -264,7 +263,7 @@ static int __devinit apci1516_auto_attach(struct comedi_device *dev,
 	s = &dev->subdevices[2];
 	if (this_board->has_timer) {
 		s->type = COMEDI_SUBD_TIMER;
-		s->subdev_flags = SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
+		s->subdev_flags = SDF_WRITEABLE;
 		s->n_chan = 1;
 		s->maxdata = 0;
 		s->range_table = &range_digital;