Re: [PATCH 3/4] iio: make invensense timestamp module generic

[Jonathan Cameron <jic23@kernel.org>]

On Wed, 31 May 2023 14:25:12 +0000
inv.git-commit@tdk.com wrote:

> From: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
> 
> Rename common module to inv_sensors_timestamp, add configuration
> at init (chip internal clock, acceptable jitter, ...) and update
> inv_icm42600 driver integration.
> 
> Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Docs update needed below.



> diff --git a/include/linux/iio/common/inv_sensors_timestamp.h b/include/linux/iio/common/inv_sensors_timestamp.h
> new file mode 100644
> index 000000000000..23440bc7322c
> --- /dev/null
> +++ b/include/linux/iio/common/inv_sensors_timestamp.h

> +
> +/**
> + * struct inv_sensors_timestamp - timestamp management states
> + * @chip:		chip internal characteristics
> + * @it:			interrupts interval timestamps
> + * @timestamp:		store last timestamp for computing next data timestamp
> + * @mult:		current internal period multiplier
> + * @new_mult:		new set internal period multiplier (not yet effective)
> + * @period:		measured current period of the sensor
> + * @chip_period:	accumulator for computing internal chip period

Docs need an update.

> + */
> +struct inv_sensors_timestamp {
> +	struct inv_sensors_timestamp_chip chip;
> +	uint32_t min_period;
> +	uint32_t max_period;
> +	struct inv_sensors_timestamp_interval it;
> +	int64_t timestamp;
> +	uint32_t mult;
> +	uint32_t new_mult;
> +	uint32_t period;
> +	struct inv_sensors_timestamp_acc chip_period;
> +};
> +