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

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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>
This commit is contained in:
H Hartley Sweeten 2016-05-03 12:29:47 -07:00 • committed by Greg Kroah-Hartman
commit 6b62e7578b
1 changed files with 7 additions and 6 deletions
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13
drivers/staging/comedi/drivers/das16m1.c
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@ -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;