tty: serial: altera_jtaguart: Add device tree support

Advertise the possibility to use this driver with device tree if
CONFIG_OF is set.

Signed-off-by: Tobias Klauser <[e-mail]>
Signed-off-by: Grant Likely <[e-mail]>

Documentation/devicetree/bindings/serial/altera_jtaguart.txt

···
+Altera JTAG UART
+
+Required properties:
+- compatible : should be "ALTR,juart-1.0"

drivers/tty/serial/altera_jtaguart.c

···
 	return 0;
 }
 
+#ifdef CONFIG_OF
+static struct of_device_id altera_jtaguart_match[] = {
+	{ .compatible = "ALTR,juart-1.0", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, altera_jtaguart_match);
+#else
+#define altera_jtaguart_match NULL
+#endif /* CONFIG_OF */
+
 static struct platform_driver altera_jtaguart_platform_driver = {
 	.probe	= altera_jtaguart_probe,
 	.remove	= __devexit_p(altera_jtaguart_remove),
 	.driver	= {
-		.name	= DRV_NAME,
-		.owner	= THIS_MODULE,
+		.name		= DRV_NAME,
+		.owner		= THIS_MODULE,
+		.of_match_table	= altera_jtaguart_match,
 	},
 };