usb: dwc3: workaround: missing disconnect event

DWC3 revisions <1.88a have an issue which would
case a missing Disconnect event if cable is
disconnected while there's a Setup packet
pending the FIFO.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index b901a4d3b068..836cf9942a4f 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -578,6 +578,7 @@ struct dwc3_hwparams {
  * @ep0_bounced: true when we used bounce buffer
  * @ep0_expect_in: true when we expect a DATA IN transfer
  * @start_config_issued: true when StartConfig command has been issued
+ * @setup_packet_pending: true when there's a Setup Packet in FIFO. Workaround
  * @ep0_next_event: hold the next expected event
  * @ep0state: state of endpoint zero
  * @link_state: link state
@@ -633,6 +634,7 @@ struct dwc3 {
         unsigned                ep0_bounced:1;
         unsigned                ep0_expect_in:1;
         unsigned                start_config_issued:1;
+        unsigned                setup_packet_pending:1;
         unsigned                delayed_status:1;
 
         enum dwc3_ep0_next      ep0_next_event;