diff options
author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2012-09-25 17:03:56 (GMT) |
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committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2012-09-25 17:03:56 (GMT) |
commit | 593d1006cdf710ab3469c0c37c184fea0bc3da97 (patch) | |
tree | e4db58440018a52089e8d6b39160f753ab10df99 /drivers/usb/dwc3/gadget.c | |
parent | 5217192b85480353aeeb395574e60d0db04f3676 (diff) | |
parent | 9b20aa63b8fc9a6a3b6831f4eae3621755e51211 (diff) | |
download | linux-fsl-qoriq-593d1006cdf710ab3469c0c37c184fea0bc3da97.tar.xz |
Merge remote-tracking branch 'tip/core/rcu' into next.2012.09.25b
Resolved conflict in kernel/sched/core.c using Peter Zijlstra's
approach from https://lkml.org/lkml/2012/9/5/585.
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
-rw-r--r-- | drivers/usb/dwc3/gadget.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 58fdfad..c2813c2b 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -263,8 +263,11 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req, if (req->request.status == -EINPROGRESS) req->request.status = status; - usb_gadget_unmap_request(&dwc->gadget, &req->request, - req->direction); + if (dwc->ep0_bounced && dep->number == 0) + dwc->ep0_bounced = false; + else + usb_gadget_unmap_request(&dwc->gadget, &req->request, + req->direction); dev_dbg(dwc->dev, "request %p from %s completed %d/%d ===> %d\n", req, dep->name, req->request.actual, @@ -1026,6 +1029,7 @@ static void __dwc3_gadget_start_isoc(struct dwc3 *dwc, if (list_empty(&dep->request_list)) { dev_vdbg(dwc->dev, "ISOC ep %s run out for requests.\n", dep->name); + dep->flags |= DWC3_EP_PENDING_REQUEST; return; } @@ -1089,6 +1093,17 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req) if (dep->flags & DWC3_EP_PENDING_REQUEST) { int ret; + /* + * If xfernotready is already elapsed and it is a case + * of isoc transfer, then issue END TRANSFER, so that + * you can receive xfernotready again and can have + * notion of current microframe. + */ + if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) { + dwc3_stop_active_transfer(dwc, dep->number); + return 0; + } + ret = __dwc3_gadget_kick_transfer(dep, 0, true); if (ret && ret != -EBUSY) { struct dwc3 *dwc = dep->dwc; |