iio: mlx96014: Replace offset sign

Changed the offset to negative as usual equation is: (raw +
offset)*scale and in this
case offset should be negative (as we deduct 273.15 Kelvin to get temperature
in Celsius).

Signed-off-by: Crt Mori <cmo@melexis.com>
Acked-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/temperature/mlx90614.c b/drivers/iio/temperature/mlx90614.c
index cb2e8ad8bfdcd02e75b9ea4f82e31c598e95109e..7a2b639eaa96e2ea440f3102c5da101d41edcd2b 100644 (file)
--- a/drivers/iio/temperature/mlx90614.c
+++ b/drivers/iio/temperature/mlx90614.c
@@ -204,7 +204,7 @@ static int mlx90614_read_raw(struct iio_dev *indio_dev,
                *val = ret;
                return IIO_VAL_INT;
        case IIO_CHAN_INFO_OFFSET:
-               *val = 13657;
+               *val = -13657;
                *val2 = 500000;
                return IIO_VAL_INT_PLUS_MICRO;
        case IIO_CHAN_INFO_SCALE: