Eric Lee / smarc-ti-linux-kernel

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Commit 9bd1b9e4762990d37145e01d0dacbc3aad2fc9b8

Authored by Felipe Balbi
Committed by Sekhar Nori
1 parent 6d0853ef48
Exists in ti-lsk-linux-4.1.y and in 5 other branches processor-sdk-linux-02.00.01, smarc-ti-lsk-linux-4.1.y, smarct3x-processor-sdk-linux-02.00.01, smarct4x-800-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-linux-02.00.01

usb: dwc3: gadget: use update transfer command 

If we get a Xfer Not Ready event with reason
"Transfer Active" it means endpoint is still
transferring data and we can use that to issue
update transfer for this particular endpoint
in case we have pending requests in our queue.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

Showing 1 changed file with 5 additions and 4 deletions Side-by-side Diff

drivers/usb/dwc3/gadget.c
Diff comments   View file @ 9bd1b9e
... ... @@ -2107,15 +2107,16 @@
2107 2107 if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
2108 2108 dwc3_gadget_start_isoc(dwc, dep, event);
2109 2109 } else {
  2110 + int active;
2110 2111 int ret;
2111 2112  
  2113 + active = event->status & DEPEVT_STATUS_TRANSFER_ACTIVE;
  2114 +
2112 2115 dwc3_trace(trace_dwc3_gadget, "%s: reason %s",
2113   - dep->name, event->status &
2114   - DEPEVT_STATUS_TRANSFER_ACTIVE
2115   - ? "Transfer Active"
  2116 + dep->name, active ? "Transfer Active"
2116 2117 : "Transfer Not Active");
2117 2118  
2118   - ret = __dwc3_gadget_kick_transfer(dep, 0, 1);
  2119 + ret = __dwc3_gadget_kick_transfer(dep, 0, !active);
2119 2120 if (!ret || ret == -EBUSY)
2120 2121 return;
2121 2122