--- zzzz-none-000/linux-3.10.107/arch/arm/mach-ixp4xx/nslu2-setup.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/arm/mach-ixp4xx/nslu2-setup.c	2021-02-04 17:41:59.000000000 +0000
@@ -197,11 +197,8 @@
 {
 	/* This causes the box to drop the power and go dead. */
 
-	/* enable the pwr cntl gpio */
-	gpio_line_config(NSLU2_PO_GPIO, IXP4XX_GPIO_OUT);
-
-	/* do the deed */
-	gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH);
+	/* enable the pwr cntl gpio and assert power off */
+	gpio_direction_output(NSLU2_PO_GPIO, 1);
 }
 
 static irqreturn_t nslu2_power_handler(int irq, void *dev_id)
@@ -223,6 +220,16 @@
 	return IRQ_HANDLED;
 }
 
+static int __init nslu2_gpio_init(void)
+{
+	if (!machine_is_nslu2())
+		return 0;
+
+	/* Request the power off GPIO */
+	return gpio_request(NSLU2_PO_GPIO, "power off");
+}
+device_initcall(nslu2_gpio_init);
+
 static void __init nslu2_timer_init(void)
 {
     /* The xtal on this machine is non-standard. */
@@ -258,16 +265,14 @@
 	pm_power_off = nslu2_power_off;
 
 	if (request_irq(gpio_to_irq(NSLU2_RB_GPIO), &nslu2_reset_handler,
-		IRQF_DISABLED | IRQF_TRIGGER_LOW,
-		"NSLU2 reset button", NULL) < 0) {
+		IRQF_TRIGGER_LOW, "NSLU2 reset button", NULL) < 0) {
 
 		printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
 			gpio_to_irq(NSLU2_RB_GPIO));
 	}
 
 	if (request_irq(gpio_to_irq(NSLU2_PB_GPIO), &nslu2_power_handler,
-		IRQF_DISABLED | IRQF_TRIGGER_HIGH,
-		"NSLU2 power button", NULL) < 0) {
+		IRQF_TRIGGER_HIGH, "NSLU2 power button", NULL) < 0) {
 
 		printk(KERN_DEBUG "Power Button IRQ %d not available\n",
 			gpio_to_irq(NSLU2_PB_GPIO));