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iio: ti-adc12138: 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/20211104082413.3681212-10-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Gwendal Grignou 2021-11-04 01:24:09 -07:00 committed by Jonathan Cameron
parent 4e9f4c12f1
commit a5cd0e7f5b
1 changed files with 2 additions and 1 deletions
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3
drivers/iio/adc/ti-adc12138.c
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@ -239,7 +239,8 @@ static int adc12138_read_raw(struct iio_dev *iio,
if (ret)
return ret;
*value = sign_extend32(be16_to_cpu(data) >> 3, 12);
*value = sign_extend32(be16_to_cpu(data) >> channel->scan_type.shift,
channel->scan_type.realbits - 1);
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE: