staging: comedi: dt282x: remove old unused code

There are two #if 0 blocks that have no recent history of any change.
Remove those code blocks for improved readability of the code.

Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>
Link: https://lore.kernel.org/r/20200310212545.GA8914@deeUbuntu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c
index e15e33e..89dc84d 100644 (file)
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ b/drivers/staging/comedi/drivers/dt282x.c
@@ -484,14 +484,7 @@ static void dt282x_ai_dma_interrupt(struct comedi_device *dev,
                s->async->events |= COMEDI_CB_EOA;
                return;
        }
-#if 0
-       /* clear the dual dma flag, making this the last dma segment */
-       /* XXX probably wrong */
-       if (!devpriv->ntrig) {
-               devpriv->supcsr &= ~DT2821_SUPCSR_DDMA;
-               outw(devpriv->supcsr, dev->iobase + DT2821_SUPCSR_REG);
-       }
-#endif
+
        /* restart the channel */
        dt282x_prep_ai_dma(dev, dma->cur_dma, 0);
 
@@ -534,28 +527,7 @@ static irqreturn_t dt282x_interrupt(int irq, void *d)
                s_ao->async->events |= COMEDI_CB_ERROR;
                handled = 1;
        }
-#if 0
-       if (adcsr & DT2821_ADCSR_ADDONE) {
-               unsigned short data;
-
-               data = inw(dev->iobase + DT2821_ADDAT_REG);
-               data &= s->maxdata;
-               if (devpriv->ad_2scomp)
-                       data = comedi_offset_munge(s, data);
 
-               comedi_buf_write_samples(s, &data, 1);
-
-               devpriv->nread--;
-               if (!devpriv->nread) {
-                       s->async->events |= COMEDI_CB_EOA;
-               } else {
-                       if (supcsr & DT2821_SUPCSR_SCDN)
-                               outw(devpriv->supcsr | DT2821_SUPCSR_STRIG,
-                                    dev->iobase + DT2821_SUPCSR_REG);
-               }
-               handled = 1;
-       }
-#endif
        comedi_handle_events(dev, s);
        if (s_ao)
                comedi_handle_events(dev, s_ao);