Commit 01c10880 authored Jan 14, 2019 by Bo He Committed by Felipe Balbi Jan 14, 2019

usb: dwc3: gadget: synchronize_irq dwc irq in suspend



We see dwc3 endpoint stopped by unwanted irq during
suspend resume test, which is caused dwc3 ep can't be started
with error "No Resource".

Here, add synchronize_irq before suspend to sync the
pending IRQ handlers complete.

Signed-off-by: Bo He <bo.he@intel.com>
Signed-off-by: Yu Wang <yu.y.wang@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

parent 1c7fc5cb

drivers/usb/dwc3/gadget.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -3379,6 +3379,8 @@ int dwc3_gadget_suspend(struct dwc3 *dwc)
		dwc3_disconnect_gadget(dwc);
		__dwc3_gadget_stop(dwc);

		synchronize_irq(dwc->irq_gadget);

		return 0;
		}

Admin message