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authorArtur Petrosyan <Arthur.Petrosyan@synopsys.com>2021-04-16 16:47:06 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-04-22 11:55:33 +0200
commitc2db8d7b9568b10e014af83b3c15e39929e3579e (patch)
tree6c00b80fef357d8ba49b813d218b2cd65401074b /drivers/usb
parentb29b494bcc2e612e3abcd1b136db25433eaeee1d (diff)
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 <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210416124707.5EEC2A005D@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/dwc2/hcd.c10
1 files changed, 9 insertions, 1 deletions
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;