diff options
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 62 |
1 files changed, 15 insertions, 47 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 1f5597ef945d..15df5ed546da 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -490,7 +490,8 @@ static int dwc3_gadget_set_ep_config(struct dwc3 *dwc, struct dwc3_ep *dep, params.param0 |= DWC3_DEPCFG_ACTION_INIT; } - params.param1 = DWC3_DEPCFG_XFER_COMPLETE_EN; + if (usb_endpoint_xfer_control(desc)) + params.param1 = DWC3_DEPCFG_XFER_COMPLETE_EN; if (dep->number <= 1 || usb_endpoint_xfer_isoc(desc)) params.param1 |= DWC3_DEPCFG_XFER_NOT_READY_EN; @@ -771,15 +772,13 @@ static void dwc3_gadget_ep_free_request(struct usb_ep *ep, */ static void dwc3_prepare_one_trb(struct dwc3_ep *dep, struct dwc3_request *req, dma_addr_t dma, - unsigned length, unsigned last, unsigned chain, unsigned node) + unsigned length, unsigned chain, unsigned node) { struct dwc3_trb *trb; - dwc3_trace(trace_dwc3_gadget, "%s: req %p dma %08llx length %d%s%s", + dwc3_trace(trace_dwc3_gadget, "%s: req %p dma %08llx length %d%s", dep->name, req, (unsigned long long) dma, - length, last ? " last" : "", - chain ? " chain" : ""); - + length, chain ? " chain" : ""); trb = &dep->trb_pool[dep->trb_enqueue]; @@ -829,9 +828,6 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep, if (!req->request.no_interrupt && !chain) trb->ctrl |= DWC3_TRB_CTRL_IOC | DWC3_TRB_CTRL_ISP_IMI; - if (last && !usb_endpoint_xfer_isoc(dep->endpoint.desc)) - trb->ctrl |= DWC3_TRB_CTRL_LST; - if (chain) trb->ctrl |= DWC3_TRB_CTRL_CHN; @@ -894,13 +890,11 @@ static u32 dwc3_calc_trbs_left(struct dwc3_ep *dep) } static void dwc3_prepare_one_trb_sg(struct dwc3_ep *dep, - struct dwc3_request *req, unsigned int trbs_left, - unsigned int more_coming) + struct dwc3_request *req, unsigned int trbs_left) { struct usb_request *request = &req->request; struct scatterlist *sg = request->sg; struct scatterlist *s; - unsigned int last = false; unsigned int length; dma_addr_t dma; int i; @@ -911,48 +905,28 @@ static void dwc3_prepare_one_trb_sg(struct dwc3_ep *dep, length = sg_dma_len(s); dma = sg_dma_address(s); - if (sg_is_last(s)) { - if (usb_endpoint_xfer_int(dep->endpoint.desc) || - !more_coming) - last = true; - - chain = false; - } - - if (!trbs_left--) - last = true; - - if (last) + if (sg_is_last(s)) chain = false; dwc3_prepare_one_trb(dep, req, dma, length, - last, chain, i); + chain, i); - if (last) + if (!trbs_left--) break; } } static void dwc3_prepare_one_trb_linear(struct dwc3_ep *dep, - struct dwc3_request *req, unsigned int trbs_left, - unsigned int more_coming) + struct dwc3_request *req, unsigned int trbs_left) { - unsigned int last = false; unsigned int length; dma_addr_t dma; dma = req->request.dma; length = req->request.length; - if (!trbs_left) - last = true; - - /* Is this the last request? */ - if (usb_endpoint_xfer_int(dep->endpoint.desc) || !more_coming) - last = true; - dwc3_prepare_one_trb(dep, req, dma, length, - last, false, 0); + false, 0); } /* @@ -966,7 +940,6 @@ static void dwc3_prepare_one_trb_linear(struct dwc3_ep *dep, static void dwc3_prepare_trbs(struct dwc3_ep *dep) { struct dwc3_request *req, *n; - unsigned int more_coming; u32 trbs_left; BUILD_BUG_ON_NOT_POWER_OF_2(DWC3_TRB_NUM); @@ -975,15 +948,11 @@ static void dwc3_prepare_trbs(struct dwc3_ep *dep) if (!trbs_left) return; - more_coming = dep->allocated_requests - dep->queued_requests; - list_for_each_entry_safe(req, n, &dep->pending_list, list) { if (req->request.num_mapped_sgs > 0) - dwc3_prepare_one_trb_sg(dep, req, trbs_left--, - more_coming); + dwc3_prepare_one_trb_sg(dep, req, trbs_left--); else - dwc3_prepare_one_trb_linear(dep, req, trbs_left--, - more_coming); + dwc3_prepare_one_trb_linear(dep, req, trbs_left--); if (!trbs_left) return; @@ -1127,8 +1096,7 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req) * This will save one IRQ (XFER_NOT_READY) and possibly make it a * little bit faster. */ - if (!usb_endpoint_xfer_isoc(dep->endpoint.desc) && - !usb_endpoint_xfer_int(dep->endpoint.desc)) { + if (!usb_endpoint_xfer_isoc(dep->endpoint.desc)) { ret = __dwc3_gadget_kick_transfer(dep, 0); goto out; } @@ -2045,7 +2013,7 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep, int chain; req = next_request(&dep->started_list); - if (WARN_ON_ONCE(!req)) + if (!req) return 1; chain = req->request.num_mapped_sgs > 0; |