usb: dwc2: Fix host mode hibernation exit with remote wakeup flow.

stable inclusion
from stable-5.10.37
commit 7bf9d7286cf26c86f07e01eead54c1faa2fd29aa
bugzilla: 51868
CVE: NA

--------------------------------

[ Upstream commit c2db8d7b ]

Added setting "port_connect_status_change" flag to "1" in order
to re-enumerate, because after exit from hibernation port
connection status is not detected.

Fixes: c5c403dc ("usb: dwc2: Add host/device hibernation functions")
Acked-by: NMinas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: NArtur Petrosyan <Arthur.Petrosyan@synopsys.com>
Link: https://lore.kernel.org/r/20210416124707.5EEC2A005D@mailhost.synopsys.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Acked-by: NWeilong Chen <chenweilong@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/usb/dwc2/hcd.c

@@ -5580,7 +5580,15 @@ int dwc2_host_exit_hibernation(struct dwc2_hsotg *hsotg, int rem_wakeup,
 		return ret;
 	}
 
+	if (rem_wakeup) {
 		dwc2_hcd_rem_wakeup(hsotg);
+		/*
+		 * Change "port_connect_status_change" flag to re-enumerate,
+		 * because after exit from hibernation port connection status
+		 * is not detected.
+		 */
+		hsotg->flags.b.port_connect_status_change = 1;
+	}
 
 	hsotg->hibernated = 0;
 	hsotg->bus_suspended = 0;