ARM: Kirkwood: Convert DNSKW to use gpio-poweroff.

Also enable the gpio-poweroff driver when DT is used.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Tested-by: NJamie Lentin <jm@lentin.co.uk>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

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

@@ -35,6 +35,11 @@
 				      6000 2>;
 	};
 
+	gpio_poweroff {
+		compatible = "gpio-poweroff";
+		gpios = <&gpio1 4 0>;
+	};
+
 	ocp@f1000000 {
 		sata@80000 {
 			status = "okay";

arch/arm/mach-kirkwood/Kconfig

@@ -46,6 +46,9 @@ config MACH_GURUPLUG
 
 config ARCH_KIRKWOOD_DT
 	bool "Marvell Kirkwood Flattened Device Tree"
+	select POWER_SUPPLY
+	select POWER_RESET
+	select POWER_RESET_GPIO
 	select USE_OF
 	help
 	  Say 'Y' here if you want your kernel to support the

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

@@ -57,11 +57,6 @@ static unsigned int dnskw_mpp_config[] __initdata = {
 	0
 };
 
-static void dnskw_power_off(void)
-{
-	gpio_set_value(36, 1);
-}
-
 /* Register any GPIO for output and set the value */
 static void __init dnskw_gpio_register(unsigned gpio, char *name, int def)
 {
@@ -80,13 +75,6 @@ void __init dnskw_init(void)
 
 	kirkwood_ge00_init(&dnskw_ge00_data);
 
-	/* Register power-off GPIO. */
-	if (gpio_request(36, "dnskw:power:off") == 0
-	    && gpio_direction_output(36, 0) == 0)
-		pm_power_off = dnskw_power_off;
-	else
-		pr_err("dnskw: failed to configure power-off GPIO\n");
-
 	/* Ensure power is supplied to both HDDs */
 	dnskw_gpio_register(39, "dnskw:power:sata0", 1);
 	dnskw_gpio_register(40, "dnskw:power:sata1", 1);