staging: comedi: das16m1: tidy up clear interrupt register define

Rename this define and use a consistent comment throughout the code.

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/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c
index e85d9898a78de4726eeb98fbd4f49befb1772dda..dcec4e21208c9d8eb567d230144b928cc07e88d0 100644 (file)
--- a/drivers/staging/comedi/drivers/das16m1.c
+++ b/drivers/staging/comedi/drivers/das16m1.c
@@ -72,7 +72,7 @@
 #define DAS16M1_CS_IRQDATA             BIT(7)
 #define DAS16M1_DI_REG                 0x03
 #define DAS16M1_DO_REG                 0x03
-#define DAS16M1_CLEAR_INTR     4
+#define DAS16M1_CLR_INTR_REG           0x04
 #define DAS16M1_INTR_CONTROL   5
 #define   EXT_PACER              0x2
 #define   INT_PACER              0x3
@@ -276,8 +276,9 @@ static int das16m1_cmd_exec(struct comedi_device *dev,
                byte |= DAS16M1_CS_EXT_TRIG;
 
        outb(byte, dev->iobase + DAS16M1_CS_REG);
-       /* clear interrupt bit */
-       outb(0, dev->iobase + DAS16M1_CLEAR_INTR);
+
+       /* clear interrupt */
+       outb(0, dev->iobase + DAS16M1_CLR_INTR_REG);
 
        devpriv->control_state |= INTE;
        outb(devpriv->control_state, dev->iobase + DAS16M1_INTR_CONTROL);
@@ -330,8 +331,8 @@ static int das16m1_ai_rinsn(struct comedi_device *dev,
        for (n = 0; n < insn->n; n++) {
                unsigned short val;
 
-               /* clear DAS16M1_CS_IRQDATA bit */
-               outb(0, dev->iobase + DAS16M1_CLEAR_INTR);
+               /* clear interrupt */
+               outb(0, dev->iobase + DAS16M1_CLR_INTR_REG);
                /* trigger conversion */
                outb(0, dev->iobase + DAS16M1_AI_REG);
 
@@ -476,7 +477,7 @@ static irqreturn_t das16m1_interrupt(int irq, void *d)
        das16m1_handler(dev, status);
 
        /* clear interrupt */
-       outb(0, dev->iobase + DAS16M1_CLEAR_INTR);
+       outb(0, dev->iobase + DAS16M1_CLR_INTR_REG);
 
        spin_unlock(&dev->spinlock);
        return IRQ_HANDLED;