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iio: dac: ltc2688: fix voltage scale read

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Properly set *val2 (and not overwrite *val) to correctly return
IIO_VAL_FRACTIONAL_LOG2.

Fixes: 832cb9eeb9 ("iio: dac: add support for ltc2688")
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220412124916.61-1-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Nuno Sá 2022-04-12 14:49:16 +02:00 committed by Jonathan Cameron
parent de3b9fe960
commit e7e51eb037
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/dac/ltc2688.c
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@ -298,7 +298,7 @@ static int ltc2688_read_raw(struct iio_dev *indio_dev,
if (ret)
return ret;
*val = 16;
*val2 = 16;
return IIO_VAL_FRACTIONAL_LOG2;
case IIO_CHAN_INFO_CALIBBIAS:
ret = regmap_read(st->regmap,