[PATCH] iio: imu: st_lsm6dsx: wait for settling time in st_lsm6dsx_read_oneshot

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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.

Reported-by: Mario Tesi <mario.tesi@xxxxxx>
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
---
 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





[Index of Archives]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Input]     [Linux Kernel]     [Linux SCSI]     [X.org]

  Powered by Linux