staging: comedi: adl_pci9118: tidy up some wordy comments
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Fri, 5 Sep 2014 16:25:50 +0000 (09:25 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 8 Sep 2014 20:56:08 +0000 (13:56 -0700)
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/adl_pci9118.c

index 5743960..1fb6370 100644 (file)
@@ -523,15 +523,9 @@ static int pci9118_insn_read_ai(struct comedi_device *dev,
        */
        pci9118_ai_set_range_aref(dev, s, insn->chanspec);
 
+       /* set default config (disable burst and triggers) */
        devpriv->ai_cfg = PCI9118_AI_CFG_PDTRG | PCI9118_AI_CFG_PETRG;
        outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
-                                               /*
-                                                * positive triggers, no S&H,
-                                                * no burst, burst stop,
-                                                * no post trigger,
-                                                * no about trigger,
-                                                * trigger stop
-                                                */
 
        if (!setup_channel_list(dev, s, 1, &insn->chanspec, 0, 0, 0, 0))
                return -EINVAL;
@@ -714,20 +708,12 @@ static int pci9118_ai_cancel(struct comedi_device *dev,
                pci9118_amcc_dma_ena(dev, false);
        pci9118_exttrg_del(dev, EXTTRG_AI);
        pci9118_start_pacer(dev, 0);    /* stop 8254 counters */
+       /* set default config (disable burst and triggers) */
        devpriv->ai_cfg = PCI9118_AI_CFG_PDTRG | PCI9118_AI_CFG_PETRG;
        outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
-                                       /*
-                                        * positive triggers, no S&H, no burst,
-                                        * burst stop, no post trigger,
-                                        * no about trigger, trigger stop
-                                        */
+       /* reset acqusition control */
        devpriv->ai_ctrl = 0;
        outl(devpriv->ai_ctrl, dev->iobase + PCI9118_AI_CTRL_REG);
-                                       /*
-                                        * bipolar, S.E., use 8254, stop 8354,
-                                        * internal trigger, soft trigger,
-                                        * disable INT and DMA
-                                        */
        outl(0, dev->iobase + PCI9118_AI_BURST_NUM_REG);
        /* reset scan queue */
        outl(1, dev->iobase + PCI9118_AI_AUTOSCAN_MODE_REG);
@@ -1592,12 +1578,8 @@ static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
        pci9118_start_pacer(dev, -1);   /* stop pacer */
 
+       /* set default config (disable burst and triggers) */
        devpriv->ai_cfg = PCI9118_AI_CFG_PDTRG | PCI9118_AI_CFG_PETRG;
-                                       /*
-                                        * positive triggers, no S&H, no burst,
-                                        * burst stop, no post trigger,
-                                        * no about trigger, trigger stop
-                                        */
        outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
        udelay(1);
        pci9118_ai_reset_fifo(dev);