diff options
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index c4ffb35..e60e72c 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1089,7 +1089,10 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req) * notion of current microframe. */ if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) { - dwc3_stop_active_transfer(dwc, dep->number); + if (list_empty(&dep->req_queued)) { + dwc3_stop_active_transfer(dwc, dep->number); + dep->flags = DWC3_EP_ENABLED; + } return 0; } @@ -1727,10 +1730,20 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep, break; } while (1); - if (list_empty(&dep->req_queued) && - (dep->flags & DWC3_EP_MISSED_ISOC)) { - dwc3_stop_active_transfer(dwc, dep->number); - dep->flags &= ~DWC3_EP_MISSED_ISOC; + if (usb_endpoint_xfer_isoc(dep->endpoint.desc) && + list_empty(&dep->req_queued)) { + if (list_empty(&dep->request_list)) { + /* + * If there is no entry in request list then do + * not issue END TRANSFER now. Just set PENDING + * flag, so that END TRANSFER is issued when an + * entry is added into request list. + */ + dep->flags = DWC3_EP_PENDING_REQUEST; + } else { + dwc3_stop_active_transfer(dwc, dep->number); + dep->flags = DWC3_EP_ENABLED; + } return 1; } |