usb: host: xhci-plat: add wakeup entry at sysfs

commit 4bb4fc0 upstream.

With this change, there will be a wakeup entry at /sys/../power/wakeup,
and the user could use this entry to choose whether enable xhci wakeup
features (wake up system from suspend) or not.

Tested-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200918131752.16488-6-mathias.nyman@linux.intel.com
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/xhci-plat.c

@@ -252,7 +252,7 @@ static int xhci_plat_probe(struct platform_device *pdev)
 			*priv = *priv_match;
 	}
 
-	device_wakeup_enable(hcd->self.controller);
+	device_set_wakeup_capable(&pdev->dev, true);
 
 	xhci->clk = clk;
 	xhci->main_hcd = hcd;