ARM: dts: kirkwood: ReadyNAS NV+v2: Add LCD panel

The NV+ v2 has a WH1602 LCD panel (which is just a rebranded HD44780),
similar to the Netgear RN104, just with different GPIO assignments.
Signed-off-by: Brian J. Tarricone <brian@tarricone.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

arch/arm/boot/dts/kirkwood-netgear_readynas_nv+_v2.dts

@@ -113,6 +113,20 @@ sata@80000 { /* Connected to Marvell 88SM4140 SATA port multiplier */
 		};
 	};
 
+	auxdisplay {
+		compatible = "hit,hd44780";
+		data-gpios = <&gpio0 17 GPIO_ACTIVE_HIGH>,
+				<&gpio1 1 GPIO_ACTIVE_HIGH>,
+				<&gpio1 3 GPIO_ACTIVE_HIGH>,
+				<&gpio1 17 GPIO_ACTIVE_HIGH>;
+		enable-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
+		rs-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
+		rw-gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>;
+		backlight-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
+		display-height-chars = <2>;
+		display-width-chars = <16>;
+	};
+
 	gpio-leds {
 		compatible = "gpio-leds";
 		pinctrl-0 = < &pmx_led_blue_power &pmx_led_blue_backup