From c2db8d7b9568b10e014af83b3c15e39929e3579e Mon Sep 17 00:00:00 2001 From: Artur Petrosyan Date: Fri, 16 Apr 2021 16:47:06 +0400 Subject: usb: dwc2: Fix host mode hibernation exit with remote wakeup flow. 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: c5c403dc4336 ("usb: dwc2: Add host/device hibernation functions") Acked-by: Minas Harutyunyan Signed-off-by: Artur Petrosyan Link: https://lore.kernel.org/r/20210416124707.5EEC2A005D@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc2/hcd.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index cda3f931195d..ff945c40ef8a 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -5650,7 +5650,15 @@ int dwc2_host_exit_hibernation(struct dwc2_hsotg *hsotg, int rem_wakeup, return ret; } - dwc2_hcd_rem_wakeup(hsotg); + 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; -- cgit