staging: comedi: ni_labpc: use comedi_range_is_unipolar()

Use the core provided helper function instead of duplicating it as
a private function.

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/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 1add114..27daccb 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -201,12 +201,6 @@ static int labpc_counter_set_mode(struct comedi_device *dev,
                return i8254_set_mode(base_address, 0, counter_number, mode);
 }
 
-static bool labpc_range_is_unipolar(struct comedi_subdevice *s,
-                                   unsigned int range)
-{
-       return s->range_table->range[range].min >= 0;
-}
-
 static int labpc_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
        struct labpc_private *devpriv = dev->private;
@@ -272,7 +266,7 @@ static void labpc_setup_cmd6_reg(struct comedi_device *dev,
                devpriv->cmd6 &= ~CMD6_NRSE;
 
        /* bipolar or unipolar range? */
-       if (labpc_range_is_unipolar(s, range))
+       if (comedi_range_is_unipolar(s, range))
                devpriv->cmd6 |= CMD6_ADCUNI;
        else
                devpriv->cmd6 &= ~CMD6_ADCUNI;
@@ -1046,7 +1040,7 @@ static int labpc_ao_insn_write(struct comedi_device *dev,
        /* set range */
        if (board->is_labpc1200) {
                range = CR_RANGE(insn->chanspec);
-               if (labpc_range_is_unipolar(s, range))
+               if (comedi_range_is_unipolar(s, range))
                        devpriv->cmd6 |= CMD6_DACUNI(channel);
                else
                        devpriv->cmd6 &= ~CMD6_DACUNI(channel);