ARM: Kirkwood: Convert GoFlexNet to use regulators

Control the power to USB using a fixed regulator. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Josh Coombs <josh.coombs@gmail.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
git-mirror · Nov 24, 2012 · 280b348 · 280b348
1 parent c3ff813
commit 280b348
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Showing 2 changed files with 17 additions and 5 deletions.
diff --git a/arch/arm/boot/dts/kirkwood-goflexnet.dts b/arch/arm/boot/dts/kirkwood-goflexnet.dts
@@ -96,4 +96,21 @@
 			gpios = <&gpio1 9 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 29 0>;
+		};
+	};
 };
diff --git a/arch/arm/mach-kirkwood/board-goflexnet.c b/arch/arm/mach-kirkwood/board-goflexnet.c
@@ -26,7 +26,6 @@
 #include <linux/of_fdt.h>
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
-#include <linux/gpio.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -62,9 +61,5 @@ void __init goflexnet_init(void)
 	 */
 	kirkwood_mpp_conf(goflexnet_mpp_config);
 
-	if (gpio_request(29, "USB Power Enable") != 0 ||
-	    gpio_direction_output(29, 1) != 0)
-		pr_err("can't setup GPIO 29 (USB Power Enable)\n");
-
 	kirkwood_ge00_init(&goflexnet_ge00_data);
 }