diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2013-03-26 15:01:19 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-28 16:16:22 -0700 |
| commit | dc49788d5f7e96a0bc8d65f304de36fd9de63647 (patch) | |
| tree | 53cb26ceaa7c94c7094deab85a92634882f8966d /drivers | |
| parent | 4541b38175c0b25488599c865c918723c560fa34 (diff) | |
staging: comedi: rtd520: remove intClearMask from private data
This variable in the private data is not necessary. Remove it.
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/comedi/drivers/rtd520.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c index a476a436eb7a..5d7e385b3807 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 intClearMask; /* interrupt clear mask */ u8 utcCtrl[4]; /* crtl mode for 3 utc + read back */ unsigned fifoLen; }; @@ -782,8 +781,7 @@ static irqreturn_t rtd_interrupt(int irq, /* interrupt number (ignored) */ goto abortTransfer; /* clear the interrupt */ - devpriv->intClearMask = status; - writew(devpriv->intClearMask, devpriv->las0 + LAS0_CLEAR); + writew(status, devpriv->las0 + LAS0_CLEAR); readw(devpriv->las0 + LAS0_CLEAR); return IRQ_HANDLED; @@ -810,8 +808,7 @@ transferDone: /* clear the interrupt */ status = readw(devpriv->las0 + LAS0_IT); - devpriv->intClearMask = status; - writew(devpriv->intClearMask, devpriv->las0 + LAS0_CLEAR); + writew(status, devpriv->las0 + LAS0_CLEAR); readw(devpriv->las0 + LAS0_CLEAR); fifoStatus = readl(devpriv->las0 + LAS0_ADC); @@ -1122,8 +1119,7 @@ static int rtd_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) /* This doesn't seem to work. There is no way to clear an interrupt that the priority controller has queued! */ - devpriv->intClearMask = ~0; - writew(devpriv->intClearMask, devpriv->las0 + LAS0_CLEAR); + writew(~0, devpriv->las0 + LAS0_CLEAR); readw(devpriv->las0 + LAS0_CLEAR); /* TODO: allow multiple interrupt sources */ @@ -1308,8 +1304,7 @@ static void rtd_reset(struct comedi_device *dev) udelay(100); /* needed? */ writel(0, devpriv->lcfg + PLX_INTRCS_REG); writew(0, devpriv->las0 + LAS0_IT); - devpriv->intClearMask = ~0; - writew(devpriv->intClearMask, devpriv->las0 + LAS0_CLEAR); + writew(~0, devpriv->las0 + LAS0_CLEAR); readw(devpriv->las0 + LAS0_CLEAR); } |