Commit 7b8dc11c authored by Dimitri Fedrau's avatar Dimitri Fedrau Committed by Jonathan Cameron
Browse files

iio: humditiy: hdc3020: fix units for temperature and humidity measurement 



According to the ABI the units after application of scale and offset are
milli degrees for temperature measurements and milli percent for relative
humidity measurements. Currently the resulting units are degree celsius for
temperature measurements and percent for relative humidity measurements.
Change scale factor to fix this issue.

Fixes: c9180b8e ("iio: humidity: Add driver for ti HDC302x humidity sensors")
Reported-by: default avatarChris Lesiak <chris.lesiak@licorbio.com>
Suggested-by: default avatarChris Lesiak <chris.lesiak@licorbio.com>
Reviewed-by: default avatarJavier Carrasco <javier.carrasco.cruz@gmail.com>
Signed-off-by: default avatarDimitri Fedrau <dimitri.fedrau@liebherr.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 3af0c1fb

drivers/iio/humidity/hdc3020.c

+2 −2
Original line number Diff line number Diff line
@@ -301,9 +301,9 @@ static int hdc3020_read_raw(struct iio_dev *indio_dev, 
	case IIO_CHAN_INFO_SCALE:

		*val2 = 65536;

		if (chan->type == IIO_TEMP)

			*val = 175;

			*val = 175 * MILLI;

		else

			*val = 100;

			*val = 100 * MILLI;

		return IIO_VAL_FRACTIONAL;



	case IIO_CHAN_INFO_OFFSET: