staging: comedi: pcl812: interrupt handlers should not busywait

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The interrupt is only generated by the hardware at the completion of
an A/D conversion. Because of this the sanity check to make sure that
the A/D conversion is complete and data is available is probably
unnecessary but it doesn't hurt anything.

The busywait loop is a different issue. Interrupt routines should not
busywait. That's just mean...

Remove the bustwait and use pcl812_ai_eoc() to check for the end-of-
conversion.

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>

...

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H Hartley Sweeten 2014-03-04 11:29:32 -07:00 • committed by Greg Kroah-Hartman

parent 080ee8820d

commit db0446d0e2

1 changed files with 1 additions and 22 deletions

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drivers/staging/comedi/drivers/pcl812.c

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