diff options
| author | Marcelo Schmitt <marcelo.schmitt@analog.com> | 2025-09-18 14:37:27 -0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2025-10-13 08:38:08 +0100 |
| commit | ffc74ad539136ae9e16f7b5f2e4582e88018cd49 (patch) | |
| tree | a1b9e2823546f24932b79d92e9a6b46e19299fc7 | |
| parent | 3a8660878839faadb4f1a6dd72c3179c1df56787 (diff) | |
iio: adc: ad4030: Fix _scale value for common-mode channels
Previously, the driver always used the amount of precision bits of
differential input channels to provide the scale to mV. Though,
differential and common-mode voltage channels have different amount of
precision bits and the correct number of precision bits must be considered
to get to a proper mV scale factor for each one. Use channel specific
number of precision bits to provide the correct scale value for each
channel.
Fixes: de67f28abe58 ("iio: adc: ad4030: check scan_type for error")
Fixes: 949abd1ca5a4 ("iio: adc: ad4030: add averaging support")
Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | drivers/iio/adc/ad4030.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/adc/ad4030.c b/drivers/iio/adc/ad4030.c index 1bc2f9a22470..d8bee6a4215a 100644 --- a/drivers/iio/adc/ad4030.c +++ b/drivers/iio/adc/ad4030.c @@ -385,7 +385,7 @@ static int ad4030_get_chan_scale(struct iio_dev *indio_dev, struct ad4030_state *st = iio_priv(indio_dev); const struct iio_scan_type *scan_type; - scan_type = iio_get_current_scan_type(indio_dev, st->chip->channels); + scan_type = iio_get_current_scan_type(indio_dev, chan); if (IS_ERR(scan_type)) return PTR_ERR(scan_type); |