summaryrefslogtreecommitdiffstats
path: root/drivers/usb
diff options
context:
space:
mode:
authorFelipe Balbi <balbi@ti.com>2014-09-04 10:28:10 -0500
committerFelipe Balbi <balbi@ti.com>2014-09-05 09:16:55 -0500
commit0b93a4c838fa10370d72f86fe712426ac63804de (patch)
treea834b4e0ff9188981ec9c4f1ac5bea773b6fd0e6 /drivers/usb
parent81a60b7f5c143ab3cdcd9943c9b4b7c63c32fc31 (diff)
usb: dwc3: fix TRB completion when multiple TRBs are started
After commit 2ec2a8be (usb: dwc3: gadget: always enable IOC on bulk/interrupt transfers) we created a situation where it was possible to hang a bulk/interrupt endpoint if we had more than one pending request in our queue and they were both started with a single Start Transfer command. The problems triggers because we had not enabled Transfer In Progress event for those endpoints and we were not able to process early giveback of requests completed without LST bit set. Fix the problem by finally enabling Xfer In Progress event for all endpoint types, except control. Fixes: 2ec2a8be (usb: dwc3: gadget: always enable IOC on bulk/interrupt transfers) Cc: <stable@vger.kernel.org> # v3.14+ Reported-by: Pratyush Anand <pratyush.anand@st.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/dwc3/gadget.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index e8fb231630f..490a6ca0073 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -527,7 +527,7 @@ static int dwc3_gadget_set_ep_config(struct dwc3 *dwc, struct dwc3_ep *dep,
dep->stream_capable = true;
}
- if (usb_endpoint_xfer_isoc(desc))
+ if (!usb_endpoint_xfer_control(desc))
params.param1 |= DWC3_DEPCFG_XFER_IN_PROGRESS_EN;
/*
@@ -2042,12 +2042,6 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
dwc3_endpoint_transfer_complete(dwc, dep, event);
break;
case DWC3_DEPEVT_XFERINPROGRESS:
- if (!usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
- dev_dbg(dwc->dev, "%s is not an Isochronous endpoint\n",
- dep->name);
- return;
- }
-
dwc3_endpoint_transfer_complete(dwc, dep, event);
break;
case DWC3_DEPEVT_XFERNOTREADY: