The pci9118_ai_docmd_dma() function enables the DMA bit in the ai control
register for all acquisition modes. For aesthetics, move the enable of
this bit into the (*do_cmd).
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/adl_pci9118.c | 15 +++++++--------
1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c
b/drivers/staging/comedi/drivers/adl_pci9118.c
index 48064c2..5588631 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -1139,12 +1139,10 @@ static int pci9118_ai_docmd_dma(struct comedi_device
*dev,
switch (devpriv->ai_do) {
case 1:
- devpriv->ai_ctrl |= PCI9118_AI_CTRL_TMRTR |
- PCI9118_AI_CTRL_DMA;
+ devpriv->ai_ctrl |= PCI9118_AI_CTRL_TMRTR;
break;
case 2:
- devpriv->ai_ctrl |= PCI9118_AI_CTRL_TMRTR |
- PCI9118_AI_CTRL_DMA;
+ devpriv->ai_ctrl |= PCI9118_AI_CTRL_TMRTR;
devpriv->ai_cfg |= PCI9118_AI_CFG_BM |
PCI9118_AI_CFG_BS;
if (cmd->convert_src == TRIG_NOW && !devpriv->softsshdelay)
@@ -1153,12 +1151,10 @@ static int pci9118_ai_docmd_dma(struct comedi_device
*dev,
dev->iobase + PCI9118_AI_BURST_NUM_REG);
break;
case 3:
- devpriv->ai_ctrl |= PCI9118_AI_CTRL_EXTM |
- PCI9118_AI_CTRL_DMA;
+ devpriv->ai_ctrl |= PCI9118_AI_CTRL_EXTM;
break;
case 4:
- devpriv->ai_ctrl |= PCI9118_AI_CTRL_TMRTR |
- PCI9118_AI_CTRL_DMA;
+ devpriv->ai_ctrl |= PCI9118_AI_CTRL_TMRTR;
devpriv->ai_cfg |= PCI9118_AI_CFG_AM;
outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
pci9118_timer_set_mode(dev, 0, I8254_MODE0);
@@ -1346,6 +1342,9 @@ static int pci9118_ai_cmd(struct comedi_device *dev,
struct comedi_subdevice *s)
devpriv->ai_do = 3;
}
+ if (devpriv->usedma)
+ devpriv->ai_ctrl |= PCI9118_AI_CTRL_DMA;
+
pci9118_start_pacer(dev, -1); /* stop pacer */
/* set default config (disable burst and triggers) */
--
2.0.3
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