6.17-stable review patch. If anyone has any objections, please let me know.
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From: Dimitri Fedrau dimitri.fedrau@liebherr.com
commit 7b8dc11c0a830caa0d890c603d597161c6c26095 upstream.
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: c9180b8e39be ("iio: humidity: Add driver for ti HDC302x humidity sensors") Reported-by: Chris Lesiak chris.lesiak@licorbio.com Suggested-by: Chris Lesiak chris.lesiak@licorbio.com Reviewed-by: Javier Carrasco javier.carrasco.cruz@gmail.com Signed-off-by: Dimitri Fedrau dimitri.fedrau@liebherr.com Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/iio/humidity/hdc3020.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/iio/humidity/hdc3020.c +++ b/drivers/iio/humidity/hdc3020.c @@ -301,9 +301,9 @@ static int hdc3020_read_raw(struct iio_d 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: