From: Li Jun <jun.li@xxxxxxx>
If dwc->dev in device mode already runtime suspended, don't do it again
for system suspend.
Signed-off-by: Li Jun <jun.li@xxxxxxx>
---
drivers/usb/dwc3/core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 1d85c42..51dc844 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1637,6 +1637,8 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg)
switch (dwc->current_dr_role) {
case DWC3_GCTL_PRTCAP_DEVICE:
+ if (pm_runtime_suspended(dwc->dev))
+ break;
spin_lock_irqsave(&dwc->lock, flags);
dwc3_gadget_suspend(dwc);
spin_unlock_irqrestore(&dwc->lock, flags);
--
2.7.4
