Factor the code that resets the board and disables the interrupts out
of the attach.
Move the reset so it happens before the subdevices are initialized.
Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Cc: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/staging/comedi/drivers/ni_pcidio.c | 24 +++++++++++++++---------
1 file changed, 15 insertions(+), 9 deletions(-)
diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c
b/drivers/staging/comedi/drivers/ni_pcidio.c
index 645a4d8..ef72fc7 100644
--- a/drivers/staging/comedi/drivers/ni_pcidio.c
+++ b/drivers/staging/comedi/drivers/ni_pcidio.c
@@ -949,6 +949,19 @@ static int pci_6534_upload_firmware(struct comedi_device
*dev)
return ret;
}
+static void nidio_reset_board(struct comedi_device *dev)
+{
+ struct nidio96_private *devpriv = dev->private;
+ void __iomem *daq_mmio = devpriv->mite->daq_io_addr;
+
+ writel(0, daq_mmio + Port_IO(0));
+ writel(0, daq_mmio + Port_Pin_Directions(0));
+ writel(0, daq_mmio + Port_Pin_Mask(0));
+
+ /* disable interrupts on board */
+ writeb(0, daq_mmio + Master_DMA_And_Interrupt_Control);
+}
+
static int nidio_auto_attach(struct comedi_device *dev,
unsigned long context)
{
@@ -996,6 +1009,8 @@ static int nidio_auto_attach(struct comedi_device *dev,
return ret;
}
+ nidio_reset_board(dev);
+
ret = comedi_alloc_subdevices(dev, 1);
if (ret)
return ret;
@@ -1023,15 +1038,6 @@ static int nidio_auto_attach(struct comedi_device *dev,
s->async_dma_dir = DMA_BIDIRECTIONAL;
s->poll = &ni_pcidio_poll;
- writel(0, devpriv->mite->daq_io_addr + Port_IO(0));
- writel(0, devpriv->mite->daq_io_addr + Port_Pin_Directions(0));
- writel(0, devpriv->mite->daq_io_addr + Port_Pin_Mask(0));
-
- /* disable interrupts on board */
- writeb(0x00,
- devpriv->mite->daq_io_addr +
- Master_DMA_And_Interrupt_Control);
-
irq = mite_irq(devpriv->mite);
if (irq) {
ret = request_irq(irq, nidio_interrupt, IRQF_SHARED,
--
1.8.4.4
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