5 files changed, 64 insertions, 93 deletions

diff --git a/arch/powerpc/include/asm/mpic.h b/arch/powerpc/include/asm/mpic.h
index 7005ee0b074..49baddcdd14 100644
--- a/arch/powerpc/include/asm/mpic.h
+++ b/arch/powerpc/include/asm/mpic.h
@@ -3,7 +3,6 @@
 #ifdef __KERNEL__
 
 #include <linux/irq.h>
-#include <linux/sysdev.h>
 #include <asm/dcr.h>
 #include <asm/msi_bitmap.h>
 
@@ -320,8 +319,6 @@ struct mpic
         /* link */
         struct mpic             *next;
 
-        struct sys_device       sysdev;
-
 #ifdef CONFIG_PM
         struct mpic_irq_save    *save_data;
 #endif
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index acfaccea5f4..3675da73623 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -32,6 +32,7 @@
 #include <linux/io.h>
 #include <linux/mutex.h>
 #include <linux/linux_logo.h>
+#include <linux/syscore_ops.h>
 #include <asm/spu.h>
 #include <asm/spu_priv1.h>
 #include <asm/spu_csa.h>
@@ -521,18 +522,8 @@ void spu_init_channels(struct spu *spu)
 }
 EXPORT_SYMBOL_GPL(spu_init_channels);
 
-static int spu_shutdown(struct sys_device *sysdev)
-{
-        struct spu *spu = container_of(sysdev, struct spu, sysdev);
-
-        spu_free_irqs(spu);
-        spu_destroy_spu(spu);
-        return 0;
-}
-
 static struct sysdev_class spu_sysdev_class = {
         .name = "spu",
-        .shutdown = spu_shutdown,
 };
 
 int spu_add_sysdev_attr(struct sysdev_attribute *attr)
@@ -797,6 +788,22 @@ static inline void crash_register_spus(struct list_head *list)
 }
 #endif
 
+static void spu_shutdown(void)
+{
+        struct spu *spu;
+
+        mutex_lock(&spu_full_list_mutex);
+        list_for_each_entry(spu, &spu_full_list, full_list) {
+                spu_free_irqs(spu);
+                spu_destroy_spu(spu);
+        }
+        mutex_unlock(&spu_full_list_mutex);
+}
+
+static struct syscore_ops spu_syscore_ops = {
+        .shutdown = spu_shutdown,
+};
+
 static int __init init_spu_base(void)
 {
         int i, ret = 0;
@@ -830,6 +837,7 @@ static int __init init_spu_base(void)
         crash_register_spus(&spu_full_list);
         mutex_unlock(&spu_full_list_mutex);
         spu_add_sysdev_attr(&attr_stat);
+        register_syscore_ops(&spu_syscore_ops);
 
         spu_init_affinity();
 
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 023f24086a0..7c18a1607d1 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -21,7 +21,7 @@
 #include <linux/signal.h>
 #include <linux/pci.h>
 #include <linux/interrupt.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/adb.h>
 #include <linux/pmu.h>
 #include <linux/module.h>
@@ -677,7 +677,7 @@ not_found:
         return viaint;
 }
 
-static int pmacpic_suspend(struct sys_device *sysdev, pm_message_t state)
+static int pmacpic_suspend(void)
 {
         int viaint = pmacpic_find_viaint();
 
@@ -698,7 +698,7 @@ static int pmacpic_suspend(struct sys_device *sysdev, pm_message_t state)
         return 0;
 }
 
-static int pmacpic_resume(struct sys_device *sysdev)
+static void pmacpic_resume(void)
 {
         int i;
 
@@ -709,39 +709,19 @@ static int pmacpic_resume(struct sys_device *sysdev)
         for (i = 0; i < max_real_irqs; ++i)
                 if (test_bit(i, sleep_save_mask))
                         pmac_unmask_irq(irq_get_irq_data(i));
-
-        return 0;
 }
 
-#endif /* CONFIG_PM && CONFIG_PPC32 */
-
-static struct sysdev_class pmacpic_sysclass = {
-        .name = "pmac_pic",
+static struct syscore_ops pmacpic_syscore_ops = {
+        .suspend        = pmacpic_suspend,
+        .resume         = pmacpic_resume,
 };
 
-static struct sys_device device_pmacpic = {
-        .id             = 0,
-        .cls            = &pmacpic_sysclass,
-};
-
-static struct sysdev_driver driver_pmacpic = {
-#if defined(CONFIG_PM) && defined(CONFIG_PPC32)
-        .suspend        = &pmacpic_suspend,
-        .resume         = &pmacpic_resume,
-#endif /* CONFIG_PM && CONFIG_PPC32 */
-};
-
-static int __init init_pmacpic_sysfs(void)
+static int __init init_pmacpic_syscore(void)
 {
-#ifdef CONFIG_PPC32
-        if (max_irqs == 0)
-                return -ENODEV;
-#endif
-        printk(KERN_DEBUG "Registering pmac pic with sysfs...\n");
-        sysdev_class_register(&pmacpic_sysclass);
-        sysdev_register(&device_pmacpic);
-        sysdev_driver_register(&pmacpic_sysclass, &driver_pmacpic);
+        register_syscore_ops(&pmacpic_syscore_ops);
         return 0;
 }
-machine_subsys_initcall(powermac, init_pmacpic_sysfs);
 
+machine_subsys_initcall(powermac, init_pmacpic_syscore);
+
+#endif /* CONFIG_PM && CONFIG_PPC32 */
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index fa438be962b..596554a8725 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -18,7 +18,7 @@
 #include <linux/stddef.h>
 #include <linux/sched.h>
 #include <linux/signal.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/device.h>
 #include <linux/bootmem.h>
 #include <linux/spinlock.h>
@@ -902,7 +902,7 @@ static struct {
         u32 sercr;
 } ipic_saved_state;
 
-static int ipic_suspend(struct sys_device *sdev, pm_message_t state)
+static int ipic_suspend(void)
 {
         struct ipic *ipic = primary_ipic;
 
@@ -933,7 +933,7 @@ static int ipic_suspend(struct sys_device *sdev, pm_message_t state)
         return 0;
 }
 
-static int ipic_resume(struct sys_device *sdev)
+static void ipic_resume(void)
 {
         struct ipic *ipic = primary_ipic;
 
@@ -949,44 +949,26 @@ static int ipic_resume(struct sys_device *sdev)
         ipic_write(ipic->regs, IPIC_SECNR, ipic_saved_state.secnr);
         ipic_write(ipic->regs, IPIC_SERMR, ipic_saved_state.sermr);
         ipic_write(ipic->regs, IPIC_SERCR, ipic_saved_state.sercr);
-
-        return 0;
 }
 #else
 #define ipic_suspend NULL
 #define ipic_resume NULL
 #endif
 
-static struct sysdev_class ipic_sysclass = {
-        .name = "ipic",
+static struct syscore_ops ipic_syscore_ops = {
         .suspend = ipic_suspend,
         .resume = ipic_resume,
 };
 
-static struct sys_device device_ipic = {
-        .id             = 0,
-        .cls            = &ipic_sysclass,
-};
-
-static int __init init_ipic_sysfs(void)
+static int __init init_ipic_syscore(void)
 {
-        int rc;
-
         if (!primary_ipic || !primary_ipic->regs)
                 return -ENODEV;
-        printk(KERN_DEBUG "Registering ipic with sysfs...\n");
 
-        rc = sysdev_class_register(&ipic_sysclass);
-        if (rc) {
-                printk(KERN_ERR "Failed registering ipic sys class\n");
-                return -ENODEV;
-        }
-        rc = sysdev_register(&device_ipic);
-        if (rc) {
-                printk(KERN_ERR "Failed registering ipic sys device\n");
-                return -ENODEV;
-        }
+        printk(KERN_DEBUG "Registering ipic system core operations\n");
+        register_syscore_ops(&ipic_syscore_ops);
+
         return 0;
 }
 
-subsys_initcall(init_ipic_sysfs);
+subsys_initcall(init_ipic_syscore);
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index f91c065bed5..7e5dc8f4984 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -27,6 +27,7 @@
 #include <linux/spinlock.h>
 #include <linux/pci.h>
 #include <linux/slab.h>
+#include <linux/syscore_ops.h>
 
 #include <asm/ptrace.h>
 #include <asm/signal.h>
@@ -1702,9 +1703,8 @@ void mpic_reset_core(int cpu)
 #endif /* CONFIG_SMP */
 
 #ifdef CONFIG_PM
-static int mpic_suspend(struct sys_device *dev, pm_message_t state)
+static void mpic_suspend_one(struct mpic *mpic)
 {
-        struct mpic *mpic = container_of(dev, struct mpic, sysdev);
         int i;
 
         for (i = 0; i < mpic->num_sources; i++) {
@@ -1713,13 +1713,22 @@ static int mpic_suspend(struct sys_device *dev, pm_message_t state)
                 mpic->save_data[i].dest =
                         mpic_irq_read(i, MPIC_INFO(IRQ_DESTINATION));
         }
+}
+
+static int mpic_suspend(void)
+{
+        struct mpic *mpic = mpics;
+
+        while (mpic) {
+                mpic_suspend_one(mpic);
+                mpic = mpic->next;
+        }
 
         return 0;
 }
 
-static int mpic_resume(struct sys_device *dev)
+static void mpic_resume_one(struct mpic *mpic)
 {
-        struct mpic *mpic = container_of(dev, struct mpic, sysdev);
         int i;
 
         for (i = 0; i < mpic->num_sources; i++) {
@@ -1746,33 +1755,28 @@ static int mpic_resume(struct sys_device *dev)
         }
 #endif
         } /* end for loop */
+}
 
-        return 0;
+static void mpic_resume(void)
+{
+        struct mpic *mpic = mpics;
+
+        while (mpic) {
+                mpic_resume_one(mpic);
+                mpic = mpic->next;
+        }
 }
-#endif
 
-static struct sysdev_class mpic_sysclass = {
-#ifdef CONFIG_PM
+static struct syscore_ops mpic_syscore_ops = {
         .resume = mpic_resume,
         .suspend = mpic_suspend,
-#endif
-        .name = "mpic",
 };
 
 static int mpic_init_sys(void)
 {
-        struct mpic *mpic = mpics;
-        int error, id = 0;
-
-        error = sysdev_class_register(&mpic_sysclass);
-
-        while (mpic && !error) {
-                mpic->sysdev.cls = &mpic_sysclass;
-                mpic->sysdev.id = id++;
-                error = sysdev_register(&mpic->sysdev);
-                mpic = mpic->next;
-        }
-        return error;
+        register_syscore_ops(&mpic_syscore_ops);
+        return 0;
 }
 
 device_initcall(mpic_init_sys);
+#endif