X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Fsparc64%2Fkernel%2Fpower.c;h=850cdffdd69c8f816f7f259bfc8b628c42b3f404;hb=acf63867ae06ef95eea7bf445ded2f05528a81b1;hp=699b24b890dfc5dc398e6a04ade5bf9f3a8b67c7;hpb=6d03a68e6d5528630955452ec4b768dbde0dc00c;p=linux-2.6

diff --git a/arch/sparc64/kernel/power.c b/arch/sparc64/kernel/power.c
index 699b24b890..850cdffdd6 100644
--- a/arch/sparc64/kernel/power.c
+++ b/arch/sparc64/kernel/power.c
@@ -1,7 +1,6 @@
-/* $Id: power.c,v 1.10 2001/12/11 01:57:16 davem Exp $
- * power.c: Power management driver.
+/* power.c: Power management driver.
  *
- * Copyright (C) 1999 David S. Miller (davem@redhat.com)
+ * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net)
  */
 
 #include <linux/kernel.h>
@@ -13,12 +12,14 @@
 #include <linux/interrupt.h>
 #include <linux/pm.h>
 #include <linux/syscalls.h>
+#include <linux/reboot.h>
 
 #include <asm/system.h>
 #include <asm/auxio.h>
 #include <asm/prom.h>
 #include <asm/of_device.h>
 #include <asm/io.h>
+#include <asm/sstate.h>
 
 #include <linux/unistd.h>
 
@@ -28,24 +29,15 @@
  */
 int scons_pwroff = 1; 
 
-#ifdef CONFIG_PCI
-#include <linux/pci.h>
 static void __iomem *power_reg;
 
-static DECLARE_WAIT_QUEUE_HEAD(powerd_wait);
-static int button_pressed;
-
 static irqreturn_t power_handler(int irq, void *dev_id)
 {
-	if (button_pressed == 0) {
-		button_pressed = 1;
-		wake_up(&powerd_wait);
-	}
+	orderly_poweroff(true);
 
 	/* FIXME: Check registers for status... */
 	return IRQ_HANDLED;
 }
-#endif /* CONFIG_PCI */
 
 extern void machine_halt(void);
 extern void machine_alt_power_off(void);
@@ -53,20 +45,20 @@ static void (*poweroff_method)(void) = machine_alt_power_off;
 
 void machine_power_off(void)
 {
-	if (!serial_console || scons_pwroff) {
-#ifdef CONFIG_PCI
+	sstate_poweroff();
+	if (strcmp(of_console_device->type, "serial") || scons_pwroff) {
 		if (power_reg) {
 			/* Both register bits seem to have the
 			 * same effect, so until I figure out
 			 * what the difference is...
 			 */
 			writel(AUXIO_PCIO_CPWR_OFF | AUXIO_PCIO_SPWR_OFF, power_reg);
-		} else
-#endif /* CONFIG_PCI */
+		} else {
 			if (poweroff_method != NULL) {
 				poweroff_method();
 				/* not reached */
 			}
+		}
 	}
 	machine_halt();
 }
@@ -74,40 +66,9 @@ void machine_power_off(void)
 void (*pm_power_off)(void) = machine_power_off;
 EXPORT_SYMBOL(pm_power_off);
 
-#ifdef CONFIG_PCI
-static int powerd(void *__unused)
-{
-	static char *envp[] = { "HOME=/", "TERM=linux", "PATH=/sbin:/usr/sbin:/bin:/usr/bin", NULL };
-	char *argv[] = { "/sbin/shutdown", "-h", "now", NULL };
-	DECLARE_WAITQUEUE(wait, current);
-
-	daemonize("powerd");
-
-	add_wait_queue(&powerd_wait, &wait);
-again:
-	for (;;) {
-		set_task_state(current, TASK_INTERRUPTIBLE);
-		if (button_pressed)
-			break;
-		flush_signals(current);
-		schedule();
-	}
-	__set_current_state(TASK_RUNNING);
-	remove_wait_queue(&powerd_wait, &wait);
-
-	/* Ok, down we go... */
-	button_pressed = 0;
-	if (kernel_execve("/sbin/shutdown", argv, envp) < 0) {
-		printk("powerd: shutdown execution failed\n");
-		add_wait_queue(&powerd_wait, &wait);
-		goto again;
-	}
-	return 0;
-}
-
 static int __init has_button_interrupt(unsigned int irq, struct device_node *dp)
 {
-	if (irq == PCI_IRQ_NONE)
+	if (irq == 0xffffffff)
 		return 0;
 	if (!of_find_property(dp, "button", NULL))
 		return 0;
@@ -122,23 +83,15 @@ static int __devinit power_probe(struct of_device *op, const struct of_device_id
 
 	power_reg = of_ioremap(res, 0, 0x4, "power");
 
-	printk("%s: Control reg at %lx ... ",
+	printk(KERN_INFO "%s: Control reg at %lx\n",
 	       op->node->name, res->start);
 
 	poweroff_method = machine_halt;  /* able to use the standard halt */
 
 	if (has_button_interrupt(irq, op->node)) {
-		if (kernel_thread(powerd, NULL, CLONE_FS) < 0) {
-			printk("Failed to start power daemon.\n");
-			return 0;
-		}
-		printk("powerd running.\n");
-
 		if (request_irq(irq,
 				power_handler, 0, "power", NULL) < 0)
-			printk("power: Error, cannot register IRQ handler.\n");
-	} else {
-		printk("not using powerd.\n");
+			printk(KERN_ERR "power: Cannot setup IRQ handler.\n");
 	}
 
 	return 0;
@@ -152,14 +105,15 @@ static struct of_device_id power_match[] = {
 };
 
 static struct of_platform_driver power_driver = {
-	.name		= "power",
 	.match_table	= power_match,
 	.probe		= power_probe,
+	.driver		= {
+		.name	= "power",
+	},
 };
 
 void __init power_init(void)
 {
-	of_register_driver(&power_driver, &of_bus_type);
+	of_register_driver(&power_driver, &of_platform_bus_type);
 	return;
 }
-#endif /* CONFIG_PCI */