staging: comedi: adv_pci1710: tidy up analog output subdev_flags

Remove the SDF_COMMON flag, the analog reference is not programmable and
the default aref (AREF_GROUND -> SDF_GROUND) provides adequate information
about the reference.

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>

diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index aafcb8a..91ab68b 100644 (file)
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -820,9 +820,10 @@ static int pci1710_auto_attach(struct comedi_device *dev,
        subdev++;
 
        if (board->has_ao) {
+               /* Analog Output subdevice */
                s = &dev->subdevices[subdev];
                s->type         = COMEDI_SUBD_AO;
-               s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
+               s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
                s->n_chan       = 2;
                s->maxdata      = 0x0fff;
                s->range_table  = &pci171x_ao_range;