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authorLi Jun <jun.li@nxp.com>2020-02-20 00:20:04 +0800
committerFelipe Balbi <balbi@kernel.org>2020-03-15 11:31:36 +0200
commit0227cc84c44417a29c8102e41db8ec2c11ebc6b2 (patch)
tree5ea5b97eb5f1890236ad91becdb82cfa2b5f68f6
parent4a1d042af4209544dba2196c2e92803907c3db88 (diff)
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usb: dwc3: core: don't do suspend for device mode if already suspended
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>
-rw-r--r--drivers/usb/dwc3/core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index e6879a38b5a8..edc17155cb2b 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1632,6 +1632,8 @@ 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);