drivers/gpio: gpio-nomadik: Device Tree bindings

This creates Device Tree bindings for the Nomadik GPIO driver.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
[Split off from the patch actually implementing the bindings]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/arch/arm/boot/dts/snowball.dts b/arch/arm/boot/dts/snowball.dts
index 359c6d6..738959d 100644
--- a/arch/arm/boot/dts/snowball.dts
+++ b/arch/arm/boot/dts/snowball.dts
@@ -30,35 +30,35 @@
 			wakeup = <1>;
 			linux,code = <2>;
 			label = "userpb";
-			gpios = <&gpio1 0>;
+			gpios = <&gpio1 0 0>;
 		};
 		button@2 {
 			debounce_interval = <50>;
 			wakeup = <1>;
 			linux,code = <3>;
 			label = "userpb";
-			gpios = <&gpio4 23>;
+			gpios = <&gpio4 23 0>;
 		};
 		button@3 {
 			debounce_interval = <50>;
 			wakeup = <1>;
 			linux,code = <4>;
 			label = "userpb";
-			gpios = <&gpio4 23>;
+			gpios = <&gpio4 24 0>;
 		};
 		button@4 {
 			debounce_interval = <50>;
 			wakeup = <1>;
 			linux,code = <5>;
 			label = "userpb";
-			gpios = <&gpio5 1>;
+			gpios = <&gpio5 1 0>;
 		};
 		button@5 {
 			debounce_interval = <50>;
 			wakeup = <1>;
 			linux,code = <6>;
 			label = "userpb";
-			gpios = <&gpio5 2>;
+			gpios = <&gpio5 2 0>;
 		};
 	};