From: Marek Szyprowski <m.szyprow...@samsung.com>

DWC3 hangs on OUT requests smaller than maxpacket size,
so HACK the request length to be at least equal to maxpacket size.

Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
 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 a497fbb..737cb3e 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -973,6 +973,14 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, 
struct dwc3_request *req)
        req->epnum              = dep->number;
 
        /*
+        * DWC3 hangs on OUT requests smaller than maxpacket size,
+        * so HACK the request length
+        */
+       if (dep->direction == 0 &&
+           req->request.length < dep->endpoint.maxpacket)
+               req->request.length = dep->endpoint.maxpacket;
+
+       /*
         * We only add to our list of requests now and
         * start consuming the list once we get XferNotReady
         * IRQ.
-- 
2.0.0.rc2

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