xhci: plat: adapt to unified device property interface

Requesting the only property that the driver needs using the
unified device property interface so it will be available
for all types of platforms, not just the ones using DT.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/xhci-plat.c

@@ -138,7 +138,6 @@ MODULE_DEVICE_TABLE(of, usb_xhci_of_match);
 
 static int xhci_plat_probe(struct platform_device *pdev)
 {
-	struct device_node	*node = pdev->dev.of_node;
 	struct usb_xhci_pdata	*pdata = dev_get_platdata(&pdev->dev);
 	const struct of_device_id *match;
 	const struct hc_driver	*driver;
@@ -202,7 +201,7 @@ static int xhci_plat_probe(struct platform_device *pdev)
 	}
 
 	xhci = hcd_to_xhci(hcd);
-	match = of_match_node(usb_xhci_of_match, node);
+	match = of_match_node(usb_xhci_of_match, pdev->dev.of_node);
 	if (match) {
 		const struct xhci_plat_priv *priv_match = match->data;
 		struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
@@ -223,7 +222,7 @@ static int xhci_plat_probe(struct platform_device *pdev)
 		goto disable_clk;
 	}
 
-	if ((node && of_property_read_bool(node, "usb3-lpm-capable")) ||
+	if (device_property_read_bool(&pdev->dev, "usb3-lpm-capable") ||
 			(pdata && pdata->usb3_lpm_capable))
 		xhci->quirks |= XHCI_LPM_SUPPORT;