Commit ae0da4fd authored by Artur Petrosyan's avatar Artur Petrosyan Committed by Greg Kroah-Hartman
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usb: dwc2: Add hibernation exiting flow by system resume 



Adds a new flow of exiting hibernation when PC is resumed
from suspend state.

Acked-by: default avatarMinas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: default avatarArtur Petrosyan <Arthur.Petrosyan@synopsys.com>
Link: https://lore.kernel.org/r/20210416124819.A3B26A005C@mailhost.synopsys.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 755d0eff

drivers/usb/dwc2/hcd.c

+10 −0
Original line number Diff line number Diff line
@@ -4470,6 +4470,16 @@ static int _dwc2_hcd_resume(struct usb_hcd *hcd) 
		set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);

		break;

	case DWC2_POWER_DOWN_PARAM_HIBERNATION:

		ret = dwc2_exit_hibernation(hsotg, 0, 0, 1);

		if (ret)

			dev_err(hsotg->dev, "exit hibernation failed.\n");



		/*

		 * Set HW accessible bit before powering on the controller

		 * since an interrupt may rise.

		 */

		set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);

		break;

	case DWC2_POWER_DOWN_PARAM_NONE:

		/*

		 * If not hibernation nor partial power down are supported,