diff mbox series

[v4,3/9] usb: dwc3: gadget: Synchronize IRQ between soft connect/disconnect

Message ID 20220817182359.13550-4-quic_wcheng@quicinc.com (mailing list archive)
State Superseded
Commit 9711c67de7482c81e1daca3548fbc5c9603600e3
Headers show
Series Fix controller halt and endxfer timeout issues | expand

Commit Message

Wesley Cheng Aug. 17, 2022, 6:23 p.m. UTC 
Ensure that there are no pending events being handled in between soft
connect/disconnect transitions.  As we are keeping interrupts enabled,
and EP0 events are still being serviced, this avoids any stale events from
being serviced.

Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
---
 drivers/usb/dwc3/gadget.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 391e40c35747..3b83e3c4b932 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2569,6 +2569,8 @@  static int dwc3_gadget_pullup(struct usb_gadget *g, int is_on)
 		return 0;
 	}
 
+	synchronize_irq(dwc->irq_gadget);
+
 	if (!is_on) {
 		ret = dwc3_gadget_soft_disconnect(dwc);
 	} else {