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authorLars-Peter Clausen <lars@metafoo.de>2011-10-19 15:47:52 (GMT)
committerGreg Kroah-Hartman <gregkh@suse.de>2011-10-19 20:57:01 (GMT)
commit75bb23a2150e385230d1db52065641ca7cef63d3 (patch)
tree6556f574a263cf6edf31c48ff1d8fc8933289d2b
parentf1a61a8888afb9c21bb7efdd25f2755b01f065d3 (diff)
downloadlinux-fsl-qoriq-75bb23a2150e385230d1db52065641ca7cef63d3.tar.xz
staging:iio:dac:ad5791: Fix scale unit
Scale is currently reported in volts instead of millivolts. This patch fixes it. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/staging/iio/dac/ad5791.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/iio/dac/ad5791.c b/drivers/staging/iio/dac/ad5791.c
index 9ba45f1..6fbca8d 100644
--- a/drivers/staging/iio/dac/ad5791.c
+++ b/drivers/staging/iio/dac/ad5791.c
@@ -239,7 +239,7 @@ static int ad5791_read_raw(struct iio_dev *indio_dev,
return IIO_VAL_INT;
case (1 << IIO_CHAN_INFO_SCALE_SHARED):
*val = 0;
- *val2 = (st->vref_mv * 1000) >> chan->scan_type.realbits;
+ *val2 = (((u64)st->vref_mv) * 1000000ULL) >> chan->scan_type.realbits;
return IIO_VAL_INT_PLUS_MICRO;
case (1 << IIO_CHAN_INFO_OFFSET_SHARED):
val64 = (((u64)st->vref_neg_mv) << chan->scan_type.realbits);