at91: regroup gpio and pinctrl under the same ranges

Fix also the reg size as we have 512 bytes bank not 256 bytes per gpio/mux
controller

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi
index 82508d6..b061c06 100644
--- a/arch/arm/boot/dts/at91sam9n12.dtsi
+++ b/arch/arm/boot/dts/at91sam9n12.dtsi
@@ -102,44 +102,51 @@
 				interrupts = <20 4 0>;
 			};
 
-			pioA: gpio@fffff400 {
-				compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
-				reg = <0xfffff400 0x100>;
-				interrupts = <2 4 1>;
-				#gpio-cells = <2>;
-				gpio-controller;
-				interrupt-controller;
-				#interrupt-cells = <2>;
-			};
+			pinctrl@fffff400 {
+				#address-cells = <1>;
+				#size-cells = <1>;
+				compatible = "atmel,at91rm9200-pinctrl", "simple-bus";
+				ranges = <0xfffff400 0xfffff400 0x800>;
 
-			pioB: gpio@fffff600 {
-				compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
-				reg = <0xfffff600 0x100>;
-				interrupts = <2 4 1>;
-				#gpio-cells = <2>;
-				gpio-controller;
-				interrupt-controller;
-				#interrupt-cells = <2>;
-			};
+				pioA: gpio@fffff400 {
+					compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+					reg = <0xfffff400 0x200>;
+					interrupts = <2 4 1>;
+					#gpio-cells = <2>;
+					gpio-controller;
+					interrupt-controller;
+					#interrupt-cells = <2>;
+				};
 
-			pioC: gpio@fffff800 {
-				compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
-				reg = <0xfffff800 0x100>;
-				interrupts = <3 4 1>;
-				#gpio-cells = <2>;
-				gpio-controller;
-				interrupt-controller;
-				#interrupt-cells = <2>;
-			};
+				pioB: gpio@fffff600 {
+					compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+					reg = <0xfffff600 0x200>;
+					interrupts = <2 4 1>;
+					#gpio-cells = <2>;
+					gpio-controller;
+					interrupt-controller;
+					#interrupt-cells = <2>;
+				};
 
-			pioD: gpio@fffffa00 {
-				compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
-				reg = <0xfffffa00 0x100>;
-				interrupts = <3 4 1>;
-				#gpio-cells = <2>;
-				gpio-controller;
-				interrupt-controller;
-				#interrupt-cells = <2>;
+				pioC: gpio@fffff800 {
+					compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+					reg = <0xfffff800 0x200>;
+					interrupts = <3 4 1>;
+					#gpio-cells = <2>;
+					gpio-controller;
+					interrupt-controller;
+					#interrupt-cells = <2>;
+				};
+
+				pioD: gpio@fffffa00 {
+					compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+					reg = <0xfffffa00 0x200>;
+					interrupts = <3 4 1>;
+					#gpio-cells = <2>;
+					gpio-controller;
+					interrupt-controller;
+					#interrupt-cells = <2>;
+				};
 			};
 
 			dbgu: serial@fffff200 {