The calibbias (DNC) register contains a 10-bit twos complement value. Perform a proper sign extension when reading the register, otherwise negative will incorrectly be displayed as large positive values. Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx> --- drivers/staging/iio/gyro/adxrs450_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/iio/gyro/adxrs450_core.c b/drivers/staging/iio/gyro/adxrs450_core.c index 91a2fae..4c462d3 100644 --- a/drivers/staging/iio/gyro/adxrs450_core.c +++ b/drivers/staging/iio/gyro/adxrs450_core.c @@ -326,7 +326,7 @@ static int adxrs450_read_raw(struct iio_dev *indio_dev, ret = adxrs450_spi_read_reg_16(indio_dev, ADXRS450_DNC1, &t); if (ret) break; - *val = t; + *val = sign_extend32(t, 9); ret = IIO_VAL_INT; break; default: -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
