In removal requests, it is necessary to make the corresponding trb
disable state (HWO = 1) and dep->queued_requests a corresponding reduction.
It is better to use a alone funtion to disable trb (HWO = 0).
Signed-off-by: Pengcheng Li <lpc...@hisilicon.com>
---
drivers/usb/dwc3/gadget.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 1e6c42e..273b51d 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -707,6 +707,36 @@ static void dwc3_remove_requests(struct dwc3 *dwc, struct
dwc3_ep *dep)
while (!list_empty(&dep->started_list)) {
req = next_request(&dep->started_list);
+ if (req->trb) {
+ if (req->num_pending_sgs) {
+ struct dwc3_trb *trb;
+ int i = 0;
+
+ for (i = 0; i < req->num_pending_sgs; i++) {
+ trb = req->trb + i;
+ trb->ctrl &= ~DWC3_TRB_CTRL_HWO;
+ dwc3_ep_inc_deq(dep);
+ }
+
+ if (req->unaligned || req->zero) {
+ trb = req->trb + req->num_pending_sgs + 1;
+ trb->ctrl &= ~DWC3_TRB_CTRL_HWO;
+ dwc3_ep_inc_deq(dep);
+ }
+ } else {
+ struct dwc3_trb *trb = req->trb;
+
+ trb->ctrl &= ~DWC3_TRB_CTRL_HWO;
+ dwc3_ep_inc_deq(dep);
+
+ if (req->unaligned || req->zero) {
+ trb = req->trb + 1;
+ trb->ctrl &= ~DWC3_TRB_CTRL_HWO;
+ dwc3_ep_inc_deq(dep);
+ }
+ }
+ }
+ dep->queued_requests--;
dwc3_gadget_giveback(dep, req, -ESHUTDOWN);
}
--
2.7.4
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