In host mode port connection status flag is "0" when loading
the driver. After loading the driver system asserts suspend
which is handled by "_dwc2_hcd_suspend()" function. Before
the system suspend the port connection status is "0". As
result need to check the "port_connect_status" if it is "0",
then skipping entering to suspend.
Cc: <stable@xxxxxxxxxxxxxxx> # 5.2
Fixes: 6f6d70597c15 ("usb: dwc2: bus suspend/resume for hosts with
DWC2_POWER_DOWN_PARAM_NONE")
Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@xxxxxxxxxxxx>
---
drivers/usb/dwc2/hcd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 40e5655921bf..1a9789ec5847 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -4322,7 +4322,8 @@ static int _dwc2_hcd_suspend(struct usb_hcd *hcd)
if (hsotg->op_state == OTG_STATE_B_PERIPHERAL)
goto unlock;
- if (hsotg->params.power_down > DWC2_POWER_DOWN_PARAM_PARTIAL)
+ if (hsotg->params.power_down != DWC2_POWER_DOWN_PARAM_PARTIAL ||
+ hsotg->flags.b.port_connect_status == 0)
goto skip_power_saving;
/*
--
2.25.1
