116 	int64_t delta, interval;  in inv_icm42600_timestamp_interrupt()  local
129 	delta = it->up - it->lo;  in inv_icm42600_timestamp_interrupt()
132 		period = div_s64(delta, fifo_nb);  in inv_icm42600_timestamp_interrupt()
152 		delta = it->lo - ts->timestamp;  in inv_icm42600_timestamp_interrupt()
154 		while (delta >= (fifo_period * 3 / 2))  in inv_icm42600_timestamp_interrupt()
155 			delta -= fifo_period;  in inv_icm42600_timestamp_interrupt()
158 		if (delta > m)  in inv_icm42600_timestamp_interrupt()
159 			delta = m;  in inv_icm42600_timestamp_interrupt()
160 		else if (delta < -m)  in inv_icm42600_timestamp_interrupt()
161 			delta = -m;  in inv_icm42600_timestamp_interrupt()
162 		ts->timestamp += delta;  in inv_icm42600_timestamp_interrupt()