ARM: Kirkwood: Convert NSA310 to DT based regulators.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/kirkwood-nsa310.dts

@@ -141,4 +141,21 @@ red-copy {
 			gpios = <&gpio1 8 0>;
 		};
 	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		usb0_power_off: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "USB Power Off";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+			regulator-boot-on;
+			gpio = <&gpio0 21 0>;
+		};
+	};
 };

arch/arm/mach-kirkwood/board-nsa310.c

@@ -17,7 +17,6 @@
 #include "common.h"
 #include "mpp.h"
 
-#define NSA310_GPIO_USB_POWER_OFF	21
 #define NSA310_GPIO_POWER_OFF		48
 
 static unsigned int nsa310_mpp_config[] __initdata = {
@@ -70,9 +69,6 @@ static void __init nsa310_gpio_init(void)
 				  "Power Off");
 	if (!err)
 		pm_power_off = nsa310_power_off;
-
-	nsa310_gpio_request(NSA310_GPIO_USB_POWER_OFF, GPIOF_OUT_INIT_LOW,
-			    "USB Power Off");
 }
 
 void __init nsa310_init(void)