iio: mxs-lradc: only update the buffer when its conversions have finished

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Using the touchscreen while running buffered capture results in the
buffer reporting lots of wrong values, often just zeros. This is because
we push readings to the buffer every time a touchscreen interrupt
arrives, including when the buffer's own conversions have not yet
finished. So let's only push to the buffer when its conversions are
ready.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Cc: Stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

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Kristina Martšenko 2015-01-25 18:28:22 +02:00 • committed by Jonathan Cameron

parent 6abe0300a1

commit 89bb35e200

1 changed files with 5 additions and 3 deletions

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drivers/staging/iio/adc/mxs-lradc.c

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