573 						p.qh->period,  in fill_periodic_buffer()
2791 			qh->period = urb->interval >> 3;  in qh_make()
2792 			if (qh->period == 0 && urb->interval != 1) {  in qh_make()
2798 			} else if (qh->period > fotg210->periodic_size) {  in qh_make()
2799 				qh->period = fotg210->periodic_size;  in qh_make()
2800 				urb->interval = qh->period << 3;  in qh_make()
2822 			qh->period = urb->interval;  in qh_make()
2823 			if (qh->period > fotg210->periodic_size) {  in qh_make()
2824 				qh->period = fotg210->periodic_size;  in qh_make()
2825 				urb->interval = qh->period;  in qh_make()
3428 static int tt_no_collision(struct fotg210_hcd *fotg210, unsigned period,  in tt_no_collision()  argument
3431 	if (period == 0)	/* error */  in tt_no_collision()
3438 	for (; frame < fotg210->periodic_size; frame += period) {  in tt_no_collision()
3514 	unsigned period = qh->period;  in qh_link_periodic()  local
3517 			"link qh%d-%04x/%p start %d [%d/%d us]\n", period,  in qh_link_periodic()
3523 	if (period == 0)  in qh_link_periodic()
3524 		period = 1;  in qh_link_periodic()
3526 	for (i = qh->start; i < fotg210->periodic_size; i += period) {  in qh_link_periodic()
3546 			if (qh->period > here.qh->period)  in qh_link_periodic()
3566 	fotg210_to_hcd(fotg210)->self.bandwidth_allocated += qh->period  in qh_link_periodic()
3567 		? ((qh->usecs + qh->c_usecs) / qh->period)  in qh_link_periodic()
3581 	unsigned period;  in qh_unlink_periodic()  local
3599 	period = qh->period;  in qh_unlink_periodic()
3600 	if (!period)  in qh_unlink_periodic()
3601 		period = 1;  in qh_unlink_periodic()
3603 	for (i = qh->start; i < fotg210->periodic_size; i += period)  in qh_unlink_periodic()
3607 	fotg210_to_hcd(fotg210)->self.bandwidth_allocated -= qh->period  in qh_unlink_periodic()
3608 		? ((qh->usecs + qh->c_usecs) / qh->period)  in qh_unlink_periodic()
3613 			qh->period, hc32_to_cpup(fotg210, &qh->hw->hw_info2) &  in qh_unlink_periodic()
3702 		unsigned uframe, unsigned period, unsigned usecs)  in check_period()  argument
3718 	if (unlikely(period == 0)) {  in check_period()
3734 		} while ((frame += period) < fotg210->periodic_size);  in check_period()
3750 	if (!check_period(fotg210, frame, uframe, qh->period, qh->usecs))  in check_intr_schedule()
3769 	if (tt_no_collision(fotg210, qh->period, qh->dev, frame, mask)) {  in check_intr_schedule()
3771 				qh->period, qh->c_usecs))  in check_intr_schedule()
3774 				qh->period, qh->c_usecs))  in check_intr_schedule()
3798 	if (frame < qh->period) {  in qh_schedule()
3813 		if (qh->period) {  in qh_schedule()
3816 			for (i = qh->period; status && i > 0; --i) {  in qh_schedule()
3817 				frame = ++fotg210->random_frame % qh->period;  in qh_schedule()
3839 		hw->hw_info2 |= qh->period  in qh_schedule()
4166 		u8 usecs, u32 period)  in itd_slot_ok()  argument
4168 	uframe %= period;  in itd_slot_ok()
4176 		uframe += period;  in itd_slot_ok()
4196 	u32 now, next, start, period, span;  in iso_stream_schedule()  local
4201 	period = urb->interval;  in iso_stream_schedule()
4234 		excess = (stream->next_uframe - period - next) & (mod - 1);  in iso_stream_schedule()
4236 			start = next + excess - mod + period *  in iso_stream_schedule()
4237 					DIV_ROUND_UP(mod - excess, period);  in iso_stream_schedule()
4239 			start = next + excess + period;  in iso_stream_schedule()
4242 					urb, start - now - period, period,  in iso_stream_schedule()
4268 		start += period;  in iso_stream_schedule()
4273 					stream->usecs, period))  in iso_stream_schedule()
4287 	if (unlikely(start - now + span - period >=  in iso_stream_schedule()
4290 				urb, start - now, span - period,  in iso_stream_schedule()