diff options
| author | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-08-01 13:32:07 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-11-26 09:08:29 +0200 |
| commit | 09fe1f8d7e2f461275b1cdd832f2cfa5e9be346d (patch) | |
| tree | 0c9fc1be8a42ee207d79a4867947ec27c7a6da17 /drivers/usb/dwc3/gadget.c | |
| parent | 1a22ec643580626f439c8583edafdcc73798f2fb (diff) | |
| download | lwn-09fe1f8d7e2f461275b1cdd832f2cfa5e9be346d.tar.gz lwn-09fe1f8d7e2f461275b1cdd832f2cfa5e9be346d.zip | |
usb: dwc3: gadget: track number of TRBs per request
This will help us remove the wait_event() from our ->dequeue().
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 3d5bd2a4c07f..70a8ff1112bb 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1046,6 +1046,8 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep, req->trb_dma = dwc3_trb_dma_offset(dep, trb); } + req->num_trbs++; + __dwc3_prepare_one_trb(dep, trb, dma, length, chain, node, stream_id, short_not_ok, no_interrupt); } @@ -1080,6 +1082,7 @@ static void dwc3_prepare_one_trb_sg(struct dwc3_ep *dep, /* Now prepare one extra TRB to align transfer size */ trb = &dep->trb_pool[dep->trb_enqueue]; + req->num_trbs++; __dwc3_prepare_one_trb(dep, trb, dwc->bounce_addr, maxp - rem, false, 1, req->request.stream_id, @@ -1124,6 +1127,7 @@ static void dwc3_prepare_one_trb_linear(struct dwc3_ep *dep, /* Now prepare one extra TRB to align transfer size */ trb = &dep->trb_pool[dep->trb_enqueue]; + req->num_trbs++; __dwc3_prepare_one_trb(dep, trb, dwc->bounce_addr, maxp - rem, false, 1, req->request.stream_id, req->request.short_not_ok, @@ -1140,6 +1144,7 @@ static void dwc3_prepare_one_trb_linear(struct dwc3_ep *dep, /* Now prepare one extra TRB to handle ZLP */ trb = &dep->trb_pool[dep->trb_enqueue]; + req->num_trbs++; __dwc3_prepare_one_trb(dep, trb, dwc->bounce_addr, 0, false, 1, req->request.stream_id, req->request.short_not_ok, @@ -2371,6 +2376,7 @@ static int dwc3_gadget_ep_reclaim_completed_trb(struct dwc3_ep *dep, dwc3_ep_inc_deq(dep); trace_dwc3_complete_trb(dep, trb); + req->num_trbs--; /* * If we're in the middle of series of chained TRBs and we |