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iio: ad7266: Use scan_type when processing raw data

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Use channel definition as root of trust and replace constant
when reading elements directly using the raw sysfs attributes.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Link: https://lore.kernel.org/r/20211104082413.3681212-8-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Gwendal Grignou 2021-11-04 01:24:07 -07:00 committed by Jonathan Cameron
parent ded408b113
commit 4e9f4c12f1
1 changed files with 2 additions and 1 deletions
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3
drivers/iio/adc/ad7266.c
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@ -159,7 +159,8 @@ static int ad7266_read_raw(struct iio_dev *indio_dev,
*val = (*val >> 2) & 0xfff;
if (chan->scan_type.sign == 's')
*val = sign_extend32(*val, 11);
*val = sign_extend32(*val,
chan->scan_type.realbits - 1);
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE: