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>
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 9f82436..1730cd0 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1129,6 +1129,23 @@
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;
}