diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 24bb94258bb8..6408f7ff8734 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -585,12 +585,16 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep, if (usb_endpoint_xfer_control(desc)) return 0; + /* Initialize the TRB ring */ + dep->trb_dequeue = 0; + dep->trb_enqueue = 0; + memset(dep->trb_pool, 0, + sizeof(struct dwc3_trb) * DWC3_TRB_NUM); + /* Link TRB. The HWO bit is never reset */ trb_st_hw = &dep->trb_pool[0]; trb_link = &dep->trb_pool[DWC3_TRB_NUM - 1]; - memset(trb_link, 0, sizeof(*trb_link)); - trb_link->bpl = lower_32_bits(dwc3_trb_dma_offset(dep, trb_st_hw)); trb_link->bph = upper_32_bits(dwc3_trb_dma_offset(dep, trb_st_hw)); trb_link->ctrl |= DWC3_TRBCTL_LINK_TRB; |