We need to wait for sensor settling time (~ 3/ODR) before reading data
in st_lsm6dsx_read_oneshot routine in order to avoid corrupted samples.
Fixes: 290a6ce11d938 ("iio: imu: add support to lsm6dsx driver")
Reported-by: Mario Tesi <mario.tesi@xxxxxx>
Tested-by: Mario Tesi <mario.tesi@xxxxxx>
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
---
Changes since v1:
- add missing Fixes tag.
---
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index 727b4b6ac696..93f0c6bce502 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -1374,8 +1374,12 @@ static int st_lsm6dsx_read_oneshot(struct st_lsm6dsx_sensor *sensor,
if (err < 0)
return err;
+ /*
+ * we need to wait for sensor settling time before
+ * reading data in order to avoid corrupted samples
+ */
delay = 1000000000 / sensor->odr;
- usleep_range(delay, 2 * delay);
+ usleep_range(3 * delay, 4 * delay);
err = st_lsm6dsx_read_locked(hw, addr, &data, sizeof(data));
if (err < 0)
--
2.34.1
