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@xxxxxx>
---
drivers/usb/dwc3/gadget.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 201e12342447..c57e2002bcff 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1967,6 +1967,14 @@ static void dwc3_endpoint_transfer_complete(struct dwc3 *dwc,
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,
--
2.5.0.GIT
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