From f98bf4aa39ecce96020631cba910be094c87ac3c Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rjw@sisk.pl>
Date: Tue, 26 Apr 2011 19:14:47 +0200
Subject: PM / UNICORE32: Use struct syscore_ops instead of sysdevs for PM

Make some UNICORE32 architecture's code use struct syscore_ops
objects for power management instead of sysdev classes and sysdevs.

This simplifies the code and reduces the kernel's memory footprint.
It also is necessary for removing sysdevs from the kernel entirely in
the future.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
---
 arch/unicore32/kernel/irq.c | 23 ++++++++---------------
 1 file changed, 8 insertions(+), 15 deletions(-)

(limited to 'arch/unicore32/kernel')

diff --git a/arch/unicore32/kernel/irq.c b/arch/unicore32/kernel/irq.c
index 2aa30a364bbe..d4efa7d679ff 100644
--- a/arch/unicore32/kernel/irq.c
+++ b/arch/unicore32/kernel/irq.c
@@ -23,7 +23,7 @@
 #include <linux/list.h>
 #include <linux/kallsyms.h>
 #include <linux/proc_fs.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/gpio.h>
 
 #include <asm/system.h>
@@ -237,7 +237,7 @@ static struct puv3_irq_state {
 	unsigned int	iccr;
 } puv3_irq_state;
 
-static int puv3_irq_suspend(struct sys_device *dev, pm_message_t state)
+static int puv3_irq_suspend(void)
 {
 	struct puv3_irq_state *st = &puv3_irq_state;
 
@@ -265,7 +265,7 @@ static int puv3_irq_suspend(struct sys_device *dev, pm_message_t state)
 	return 0;
 }
 
-static int puv3_irq_resume(struct sys_device *dev)
+static void puv3_irq_resume(void)
 {
 	struct puv3_irq_state *st = &puv3_irq_state;
 
@@ -278,27 +278,20 @@ static int puv3_irq_resume(struct sys_device *dev)
 
 		writel(st->icmr, INTC_ICMR);
 	}
-	return 0;
 }
 
-static struct sysdev_class puv3_irq_sysclass = {
-	.name		= "pkunity-irq",
+static struct syscore_ops puv3_irq_syscore_ops = {
 	.suspend	= puv3_irq_suspend,
 	.resume		= puv3_irq_resume,
 };
 
-static struct sys_device puv3_irq_device = {
-	.id		= 0,
-	.cls		= &puv3_irq_sysclass,
-};
-
-static int __init puv3_irq_init_devicefs(void)
+static int __init puv3_irq_init_syscore(void)
 {
-	sysdev_class_register(&puv3_irq_sysclass);
-	return sysdev_register(&puv3_irq_device);
+	register_syscore_ops(&puv3_irq_syscore_ops);
+	return 0;
 }
 
-device_initcall(puv3_irq_init_devicefs);
+device_initcall(puv3_irq_init_syscore);
 
 void __init init_IRQ(void)
 {
-- 
cgit v1.2.3