[PATCH] usb: dwc2: Set actual frame number for completed ISOC transfer

[Minas Harutyunyan]

On ISOC transfer completion, in DDMA mode, set actual frame
number returning to function driver in usb_request.

Due to core limitation, returning frame number is 11-bit wide.

Signed-off-by: Minas Harutyunyan <hmi...@synopsys.com>
---
 drivers/usb/dwc2/gadget.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 6812a8a3a98b..7e05032fbd87 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -2157,6 +2157,11 @@ static void 
dwc2_gadget_complete_isoc_request_ddma(struct dwc2_hsotg_ep *hs_ep)
                         */
                        if (!hs_ep->dir_in && ureq->length & 0x3)
                                ureq->actual += 4 - (ureq->length & 0x3);
+
+                       /* Set actual frame number for completed transfers */
+                       ureq->frame_number =
+                               (desc_sts & DEV_DMA_ISOC_FRNUM_MASK) >>
+                               DEV_DMA_ISOC_FRNUM_SHIFT;
                }
 
                dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);
-- 
2.11.0