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iio: imu: inv_icm42600: fix timestamps after suspend if sensor is on

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Currently suspending while sensors are one will result in timestamping
continuing without gap at resume. It can work with monotonic clock but
not with other clocks. Fix that by resetting timestamping.

Fixes: ec74ae9fd3 ("iio: imu: inv_icm42600: add accurate timestamping")
Cc: stable@vger.kernel.org
Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Link: https://patch.msgid.link/20241113-inv_icm42600-fix-timestamps-after-suspend-v1-1-dfc77c394173@tdk.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Jean-Baptiste Maneyrol 2024-11-13 21:25:45 +01:00 committed by Jonathan Cameron
parent c0f866de4c
commit 65a60a5901
1 changed files with 6 additions and 1 deletions
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7
drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
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@ -829,6 +829,8 @@ static int inv_icm42600_suspend(struct device *dev)
static int inv_icm42600_resume(struct device *dev)
{
struct inv_icm42600_state *st = dev_get_drvdata(dev);
struct inv_icm42600_sensor_state *gyro_st = iio_priv(st->indio_gyro);
struct inv_icm42600_sensor_state *accel_st = iio_priv(st->indio_accel);
int ret;
mutex_lock(&st->lock);
@ -849,9 +851,12 @@ static int inv_icm42600_resume(struct device *dev)
goto out_unlock;
/* restore FIFO data streaming */
if (st->fifo.on)
if (st->fifo.on) {
inv_sensors_timestamp_reset(&gyro_st->ts);
inv_sensors_timestamp_reset(&accel_st->ts);
ret = regmap_write(st->map, INV_ICM42600_REG_FIFO_CONFIG,
INV_ICM42600_FIFO_CONFIG_STREAM);
}
out_unlock:
mutex_unlock(&st->lock);