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usb: dwc3: core: don't do suspend for device mode if already suspended

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If dwc->dev in device mode already runtime suspended, don't do it again
for system suspend.

Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This commit is contained in:
Li Jun 2020-02-20 00:20:04 +08:00 committed by Felipe Balbi
parent 4a1d042af4
commit 0227cc84c4
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/dwc3/core.c
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@ -1632,6 +1632,8 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg)
switch (dwc->current_dr_role) { switch (dwc->current_dr_role) {
case DWC3_GCTL_PRTCAP_DEVICE: case DWC3_GCTL_PRTCAP_DEVICE:
if (pm_runtime_suspended(dwc->dev))
break;
spin_lock_irqsave(&dwc->lock, flags); spin_lock_irqsave(&dwc->lock, flags);
dwc3_gadget_suspend(dwc); dwc3_gadget_suspend(dwc);
spin_unlock_irqrestore(&dwc->lock, flags); spin_unlock_irqrestore(&dwc->lock, flags);