UPSTREAM: xhci: dbc: enable back DbC in resume if it was enabled before suspend

DbC is currently only enabled back if it's in configured state during
suspend.

If system is suspended after DbC is enabled, but before the device is
properly enumerated by the host, then DbC would not be enabled back in
resume.

Always enable DbC back in resume if it's suspended in enabled,
connected, or configured state

Cc: stable <stable@kernel.org>
Fixes: dfba217 ("usb: xhci: Add DbC support in xHCI driver")
Tested-by: Łukasz Bartosik <ukaszb@chromium.org>
Change-Id: I8541d2bcff82ed843298ef7867285b051d632bb1
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 2bbd38f)

Bug: 424155152
Change-Id: I0888ec4d631fdebaa658157357d63a9abf177fc7
Signed-off-by: Łukasz Bartosik <ukaszb@google.com>

Author: matnyman

drivers/usb/host/xhci-dbgcap.c

@@ -1389,8 +1389,15 @@ int xhci_dbc_suspend(struct xhci_hcd *xhci)
 	if (!dbc)
 		return 0;
 
-	if (dbc->state == DS_CONFIGURED)
+	switch (dbc->state) {
+	case DS_ENABLED:
+	case DS_CONNECTED:
+	case DS_CONFIGURED:
 		dbc->resume_required = 1;
+		break;
+	default:
+		break;
+	}
 
 	xhci_dbc_stop(dbc);