13 /* internal chip period is 32kHz, 31250ns */
44 				 uint32_t period)  in inv_icm42600_timestamp_init()  argument
49 	/* current multiplier and period values after reset */  in inv_icm42600_timestamp_init()
51 	ts->period = default_period;  in inv_icm42600_timestamp_init()
53 	ts->new_mult = period / INV_ICM42600_TIMESTAMP_PERIOD;  in inv_icm42600_timestamp_init()
55 	/* use theoretical value for chip period */  in inv_icm42600_timestamp_init()
71 				      uint32_t period, bool fifo)  in inv_icm42600_timestamp_update_odr()  argument
77 	ts->new_mult = period / INV_ICM42600_TIMESTAMP_PERIOD;  in inv_icm42600_timestamp_update_odr()
82 static bool inv_validate_period(uint32_t period, uint32_t mult)  in inv_validate_period()  argument
87 	/* check that period is acceptable */  in inv_validate_period()
90 	if (period > period_min && period < period_max)  in inv_validate_period()
97 				    uint32_t mult, uint32_t period)  in inv_compute_chip_period()  argument
101 	if (!inv_validate_period(period, mult))  in inv_compute_chip_period()
104 	/* update chip internal period estimation */  in inv_compute_chip_period()
105 	new_chip_period = period / mult;  in inv_compute_chip_period()
118 	uint32_t period = ts->period;  in inv_icm42600_timestamp_interrupt()  local
131 		/* compute period: delta time divided by number of samples */  in inv_icm42600_timestamp_interrupt()
132 		period = div_s64(delta, fifo_nb);  in inv_icm42600_timestamp_interrupt()
133 		valid = inv_compute_chip_period(ts, fifo_mult, period);  in inv_icm42600_timestamp_interrupt()
134 		/* update sensor period if chip internal period is updated */  in inv_icm42600_timestamp_interrupt()
136 			ts->period = ts->mult * ts->chip_period.val;  in inv_icm42600_timestamp_interrupt()
141 		/* elapsed time: sensor period * sensor samples number */  in inv_icm42600_timestamp_interrupt()
142 		interval = (int64_t)ts->period * (int64_t)sensor_nb;  in inv_icm42600_timestamp_interrupt()
157 		m = INV_ICM42600_TIMESTAMP_MAX_PERIOD(ts->period) - ts->period;  in inv_icm42600_timestamp_interrupt()
176 	/* update to new multiplier and update period */  in inv_icm42600_timestamp_apply_odr()
179 	ts->period = ts->mult * ts->chip_period.val;  in inv_icm42600_timestamp_apply_odr()
184 	 * timestamp from the current interrupt using the new FIFO period, the  in inv_icm42600_timestamp_apply_odr()
188 		/* compute measured fifo period */  in inv_icm42600_timestamp_apply_odr()