Commit c5b99396 ("staging:iio:dac:ad5791 chan spec conversion.") introduced a
small bug, using storagebits instead of realbits throughout the driver, which
causes the driver to work incorrectly. This patch fixes it.
Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
Acked-by: Jonathan Cameron <jic23@xxxxxxxxx>
---
drivers/staging/iio/dac/ad5791.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/iio/dac/ad5791.c b/drivers/staging/iio/dac/ad5791.c
index fbf446d..9a76c43 100644
--- a/drivers/staging/iio/dac/ad5791.c
+++ b/drivers/staging/iio/dac/ad5791.c
@@ -234,11 +234,11 @@ static int ad5791_read_raw(struct iio_dev *indio_dev,
return ret;
*val &= AD5791_DAC_MASK;
*val >>= chan->scan_type.shift;
- *val -= (1 << (chan->scan_type.storagebits - 1));
+ *val -= (1 << (chan->scan_type.realbits - 1));
return IIO_VAL_INT;
case (1 << IIO_CHAN_INFO_SCALE_SHARED):
*val = 0;
- *val2 = (st->vref_mv * 1000) >> chan->scan_type.storagebits;
+ *val2 = (st->vref_mv * 1000) >> chan->scan_type.realbits;
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
@@ -257,8 +257,8 @@ static int ad5791_write_raw(struct iio_dev *indio_dev,
switch (mask) {
case 0:
- val += (1 << (chan->scan_type.storagebits - 1));
- val &= AD5791_RES_MASK(chan->scan_type.storagebits);
+ val += (1 << (chan->scan_type.realbits - 1));
+ val &= AD5791_RES_MASK(chan->scan_type.realbits);
val <<= chan->scan_type.shift;
return ad5791_spi_write(st->spi, chan->address, val);
--
1.7.6.3
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