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>

2 files changed, 17 insertions, 5 deletions

diff --git a/arch/arm/boot/dts/kirkwood-goflexnet.dts b/arch/arm/boot/dts/kirkwood-goflexnet.dts
index 7c8238fbb6f9..84de887620ec 100644
--- 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
index d388bea71360..5ff439231567 100644
--- 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);
 }