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ARM: Kirkwood: Convert Dockstar to use regulators 

Control the power to USB using a fixed regulator.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Andrew Lunn 2012-11-17 15:46:12 +01:00 committed by Jason Cooper
parent 5c2734a30c
commit c3ff813ac9
2 changed files with 17 additions and 5 deletions
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17
arch/arm/boot/dts/kirkwood-dockstar.dts
View File

@ -54,4 +54,21 @@ fault {
gpios = <&gpio1 15 1>;
};
};
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>;
};
};
};

5
arch/arm/mach-kirkwood/board-dockstar.c
View File

@ -24,7 +24,6 @@
#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>
@ -52,9 +51,5 @@ void __init dockstar_dt_init(void)
*/
kirkwood_mpp_conf(dockstar_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(&dockstar_ge00_data);
}