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

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[ Upstream commit c2db8d7b9568b10e014af83b3c15e39929e3579e ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Artur Petrosyan 2021-04-16 16:47:06 +04:00 committed by Greg Kroah-Hartman
parent e83dcf255a
commit 6f7ed537ca
1 changed files with 9 additions and 1 deletions
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10
drivers/usb/dwc2/hcd.c
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@ -5580,7 +5580,15 @@ 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;