Reset the analog input control register after ensuring that any active
conversions have been stopped. This mimics what the ai subdevice (*cancel)
does.
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/me4000.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/staging/comedi/drivers/me4000.c
b/drivers/staging/comedi/drivers/me4000.c
index b3d871b..3d4a9c8 100644
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -414,6 +414,9 @@ static void me4000_reset(struct comedi_device *dev)
outl(ME4000_AI_CTRL_IMMEDIATE_STOP | ME4000_AI_CTRL_STOP,
dev->iobase + ME4000_AI_CTRL_REG);
+ /* Clear the analog input control register */
+ outl(0x0, dev->iobase + ME4000_AI_CTRL_REG);
+
/* Set both stop bits in the analog output control register */
val = ME4000_AO_CTRL_IMMEDIATE_STOP | ME4000_AO_CTRL_STOP;
for (chan = 0; chan < 4; chan++)
--
2.4.3
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