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iio: invensense: fix timestamp glitches when switching frequency

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When a sensor is running and there is a FIFO frequency change due to
another sensor turned on/off, there are glitches on timestamp. Fix that
by using only interrupt timestamp when there is the corresponding sensor
data in the FIFO.

Delete FIFO period handling and simplify internal functions.

Update integration inside inv_mpu6050 and inv_icm42600 drivers.

Fixes: 0ecc363cce ("iio: make invensense timestamp module generic")
Cc: Stable@vger.kernel.org
Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Link: https://lore.kernel.org/r/20240426094835.138389-1-inv.git-commit@tdk.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Jean-Baptiste Maneyrol
2024-04-26 09:48:35 +00:00
committed by Jonathan Cameron
parent 0340dc4c82
commit bf8367b00c
4 changed files with 21 additions and 28 deletions
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include/linux/iio/common/inv_sensors_timestamp.h
+1 -2
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@@ -71,8 +71,7 @@ int inv_sensors_timestamp_update_odr(struct inv_sensors_timestamp *ts,
uint32_t period, bool fifo);
void inv_sensors_timestamp_interrupt(struct inv_sensors_timestamp *ts,
uint32_t fifo_period, size_t fifo_nb,
size_t sensor_nb, int64_t timestamp);
size_t sample_nb, int64_t timestamp);
static inline int64_t inv_sensors_timestamp_pop(struct inv_sensors_timestamp *ts)
{