usb: dwc3: gadget: synchronize_irq dwc irq in suspend
[ Upstream commit 01c10880d24291a96a4ab0da773e3c5ce4d12da8 ]
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.
Change-Id: I696426af6cf0903e931fbd2cbe8a31d34ecfbbbf
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Leonid Lobachev <leonidl@google.com>
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index dfcdd00..36333a17 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -3345,6 +3345,8 @@
dwc3_disconnect_gadget(dwc);
__dwc3_gadget_stop(dwc);
+ synchronize_irq(dwc->irq_gadget);
+
return 0;
}
