This variable in the private data is not necessary. Remove it.
Signed-off-by: H Hartley Sweeten <[email protected]>
Cc: Ian Abbott <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
---
drivers/staging/comedi/drivers/rtd520.c | 19 ++++++-------------
1 file changed, 6 insertions(+), 13 deletions(-)
diff --git a/drivers/staging/comedi/drivers/rtd520.c
b/drivers/staging/comedi/drivers/rtd520.c
index cdcd1d7..95f6e80 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -414,7 +414,6 @@ struct rtdPrivate {
/* shadow registers affect other registers, but can't be read back */
/* The macros below update these on writes */
- u16 intMask; /* interrupt mask */
u16 intClearMask; /* interrupt clear mask */
u8 utcCtrl[4]; /* crtl mode for 3 utc + read back */
unsigned fifoLen;
@@ -799,8 +798,7 @@ transferDone:
writel(0, devpriv->las0 + LAS0_PACER_STOP);
writel(0, devpriv->las0 + LAS0_PACER); /* stop pacer */
writel(0, devpriv->las0 + LAS0_ADC_CONVERSION);
- devpriv->intMask = 0;
- writew(devpriv->intMask, devpriv->las0 + LAS0_IT);
+ writew(0, devpriv->las0 + LAS0_IT);
if (devpriv->aiCount > 0) { /* there shouldn't be anything left */
fifoStatus = readl(devpriv->las0 + LAS0_ADC);
@@ -998,8 +996,7 @@ static int rtd_ai_cmd(struct comedi_device *dev, struct
comedi_subdevice *s)
writel(0, devpriv->las0 + LAS0_PACER_STOP);
writel(0, devpriv->las0 + LAS0_PACER); /* stop pacer */
writel(0, devpriv->las0 + LAS0_ADC_CONVERSION);
- devpriv->intMask = 0;
- writew(devpriv->intMask, devpriv->las0 + LAS0_IT);
+ writew(0, devpriv->las0 + LAS0_IT);
writel(0, devpriv->las0 + LAS0_ADC_FIFO_CLEAR);
writel(0, devpriv->las0 + LAS0_OVERRUN);
@@ -1131,11 +1128,9 @@ static int rtd_ai_cmd(struct comedi_device *dev, struct
comedi_subdevice *s)
/* TODO: allow multiple interrupt sources */
if (devpriv->transCount > 0) { /* transfer every N samples */
- devpriv->intMask = IRQM_ADC_ABOUT_CNT;
- writew(devpriv->intMask, devpriv->las0 + LAS0_IT);
+ writew(IRQM_ADC_ABOUT_CNT, devpriv->las0 + LAS0_IT);
} else { /* 1/2 FIFO transfers */
- devpriv->intMask = IRQM_ADC_ABOUT_CNT;
- writew(devpriv->intMask, devpriv->las0 + LAS0_IT);
+ writew(IRQM_ADC_ABOUT_CNT, devpriv->las0 + LAS0_IT);
}
/* BUG: start_src is ASSUMED to be TRIG_NOW */
@@ -1157,8 +1152,7 @@ static int rtd_ai_cancel(struct comedi_device *dev,
struct comedi_subdevice *s)
writel(0, devpriv->las0 + LAS0_PACER_STOP);
writel(0, devpriv->las0 + LAS0_PACER); /* stop pacer */
writel(0, devpriv->las0 + LAS0_ADC_CONVERSION);
- devpriv->intMask = 0;
- writew(devpriv->intMask, devpriv->las0 + LAS0_IT);
+ writew(0, devpriv->las0 + LAS0_IT);
devpriv->aiCount = 0; /* stop and don't transfer any more */
status = readw(devpriv->las0 + LAS0_IT);
overrun = readl(devpriv->las0 + LAS0_OVERRUN) & 0xffff;
@@ -1307,8 +1301,7 @@ static void rtd_reset(struct comedi_device *dev)
writel(0, devpriv->las0 + LAS0_BOARD_RESET);
udelay(100); /* needed? */
writel(0, devpriv->lcfg + PLX_INTRCS_REG);
- devpriv->intMask = 0;
- writew(devpriv->intMask, devpriv->las0 + LAS0_IT);
+ writew(0, devpriv->las0 + LAS0_IT);
devpriv->intClearMask = ~0;
writew(devpriv->intClearMask, devpriv->las0 + LAS0_CLEAR);
readw(devpriv->las0 + LAS0_CLEAR);
--
1.8.1.4
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