diff options
| author | Felipe Balbi <balbi@ti.com> | 2012-07-26 14:26:50 +0400 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-03-06 00:40:03 +0400 |
| commit | b997ada5db905e24494bcc689c7b2c07d278ca27 (patch) | |
| tree | 0407d53f969b0a85c257c1ce78b0000aab38fc3f /drivers/usb/dwc3 | |
| parent | bc5ba2e0b829c9397f96df1191c7d2319ebc36d9 (diff) | |
| download | linux-b997ada5db905e24494bcc689c7b2c07d278ca27.tar.xz | |
usb: dwc3: gadget: pre-start Stream transfers when they're queued
we need to pre-start stream transfers otherwise we
will never know when to start them.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 9f82436b4b1e..1730cd0928c5 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1129,6 +1129,23 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req) return ret; } + /* + * 4. Stream Capable Bulk Endpoints. We need to start the transfer + * right away, otherwise host will not know we have streams to be + * handled. + */ + if (dep->stream_capable) { + int ret; + + ret = __dwc3_gadget_kick_transfer(dep, 0, true); + if (ret && ret != -EBUSY) { + struct dwc3 *dwc = dep->dwc; + + dev_dbg(dwc->dev, "%s: failed to kick transfers\n", + dep->name); + } + } + return 0; } |