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usb: dwc3: gadget: Store resource index of start cmd 

As long as the START_TRANSFER command completes, it provides the
resource index of the endpoint. Use this when we need to issue
END_TRANSFER command to an isoc endpoint to retry with a new
XferNotReady event.

Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This commit is contained in:
Thinh Nguyen 2020-03-29 16:13:04 -07:00 committed by Felipe Balbi
parent 8d99087c2d
commit 9bc3395c24
1 changed files with 6 additions and 3 deletions
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5
drivers/usb/dwc3/gadget.c
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@ -387,8 +387,11 @@ int dwc3_send_gadget_ep_cmd(struct dwc3_ep *dep, unsigned cmd,
trace_dwc3_gadget_ep_cmd(dep, cmd, params, cmd_status);
if (ret == 0 && DWC3_DEPCMD_CMD(cmd) == DWC3_DEPCMD_STARTTRANSFER) {
if (DWC3_DEPCMD_CMD(cmd) == DWC3_DEPCMD_STARTTRANSFER) {
if (ret == 0)
dep->flags |= DWC3_EP_TRANSFER_STARTED;
if (ret != -ETIMEDOUT)
dwc3_gadget_ep_get_transfer_index(dep);
}