The gadget driver may have a certain expectation of how the request
completion flow should be from to its configuration. Make sure the
controller driver respect that. That is, don't set IMI (Interrupt on
Missed Isoc) when usb_request->no_interrupt is set.
Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx>
---
drivers/usb/dwc3/gadget.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 5f321aa205be..92fb2f14850b 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1292,8 +1292,8 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep,
trb->ctrl = DWC3_TRBCTL_ISOCHRONOUS;
}
- /* always enable Interrupt on Missed ISOC */
- trb->ctrl |= DWC3_TRB_CTRL_ISP_IMI;
+ if (!req->request.no_interrupt)
+ trb->ctrl |= DWC3_TRB_CTRL_ISP_IMI;
break;
case USB_ENDPOINT_XFER_BULK:
--
2.28.0
