usb: dwc3: gadget: start transfer on XFER_COMPLETE
if by the time we get to XFER_COMPLETE we have
pending requests to be processed, instead of waiting
for a following XFER_NOT_READY, let's start the request
right away and, maybe, save the time of a few NAKs
due to lack of started transfers.
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 201e123..c57e200 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1967,6 +1967,14 @@
dwc->u1u2 = 0;
}
+
+ if (is_xfer_complete && !usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
+ int ret;
+
+ ret = __dwc3_gadget_kick_transfer(dep, 0, 1);
+ if (!ret || ret == -EBUSY)
+ return;
+ }
}
static void dwc3_endpoint_interrupt(struct dwc3 *dwc,