From: Anurag Kumar Vulisha Date: Sat, 1 Dec 2018 11:13:27 +0000 (+0530) Subject: usb: dwc3: don't issue no-op trb for stream capable endpoints X-Git-Tag: v5.0-rc1~99^2~16^2~20 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=26d62b4d10ad54622cd16b4871ee635f0ee287b6;p=linux.git usb: dwc3: don't issue no-op trb for stream capable endpoints The stream capable endpoints require stream id to be given when issuing START TRANSFER. While issuing no-op trb the stream id is not yet known, so don't issue no-op trb's on stream capable endpoints. Signed-off-by: Anurag Kumar Vulisha Signed-off-by: Felipe Balbi --- diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index d54d434dc986..08dea6fdb4a8 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -670,7 +670,7 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep, unsigned int action) * Issue StartTransfer here with no-op TRB so we can always rely on No * Response Update Transfer command. */ - if (usb_endpoint_xfer_bulk(desc) || + if ((usb_endpoint_xfer_bulk(desc) && !dep->stream_capable) || usb_endpoint_xfer_int(desc)) { struct dwc3_gadget_ep_cmd_params params; struct dwc3_trb *trb;