ARM: Kirkwood: Convert LSXL to use regulators

Control the power to USB and HDD using a fixed regulator.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/kirkwood-lsxl.dtsi

@@ -105,4 +105,33 @@ gpio_fan {
 		                      5000 0>;
 		alarm-gpios = <&gpio1 8 0>;
 	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		usb_power: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "USB Power";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			enable-active-high;
+			regulator-always-on;
+			regulator-boot-on;
+			gpio = <&gpio0 11 0>;
+		};
+		hdd_power: regulator@2 {
+			compatible = "regulator-fixed";
+			reg = <2>;
+			regulator-name = "HDD Power";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			enable-active-high;
+			regulator-always-on;
+			regulator-boot-on;
+			gpio = <&gpio0 10 0>;
+		};
+	};
 };

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

@@ -19,7 +19,6 @@
 #include <linux/spi/flash.h>
 #include <linux/spi/spi.h>
 #include <linux/mv643xx_eth.h>
-#include <linux/gpio.h>
 #include "common.h"
 #include "mpp.h"
 
@@ -61,9 +60,6 @@ static void lsxl_power_off(void)
 	kirkwood_restart('h', NULL);
 }
 
-#define LSXL_GPIO_HDD_POWER 10
-#define LSXL_GPIO_USB_POWER 11
-
 void __init lsxl_init(void)
 {
 	/*
@@ -71,10 +67,6 @@ void __init lsxl_init(void)
 	 */
 	kirkwood_mpp_conf(lsxl_mpp_config);
 
-	/* usb and sata power on */
-	gpio_set_value(LSXL_GPIO_USB_POWER, 1);
-	gpio_set_value(LSXL_GPIO_HDD_POWER, 1);
-
 	kirkwood_ge00_init(&lsxl_ge00_data);
 	kirkwood_ge01_init(&lsxl_ge01_data);