sh: pmb: Use struct syscore_ops instead of sysdevs
This converts the PMB code over to use the new syscore_ops and kills off
the old sysdev utilization, as per Rafael's example.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c
index b20b1b3..fad52f1 100644
--- a/arch/sh/mm/pmb.c
+++ b/arch/sh/mm/pmb.c
@@ -3,7 +3,7 @@
*
* Privileged Space Mapping Buffer (PMB) Support.
*
- * Copyright (C) 2005 - 2010 Paul Mundt
+ * Copyright (C) 2005 - 2011 Paul Mundt
* Copyright (C) 2010 Matt Fleming
*
* This file is subject to the terms and conditions of the GNU General Public
@@ -12,7 +12,7 @@
*/
#include <linux/init.h>
#include <linux/kernel.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
#include <linux/cpu.h>
#include <linux/module.h>
#include <linux/bitops.h>
@@ -874,46 +874,31 @@
subsys_initcall(pmb_debugfs_init);
#ifdef CONFIG_PM
-static int pmb_sysdev_suspend(struct sys_device *dev, pm_message_t state)
+static void pmb_syscore_resume(void)
{
- static pm_message_t prev_state;
+ struct pmb_entry *pmbe;
int i;
- /* Restore the PMB after a resume from hibernation */
- if (state.event == PM_EVENT_ON &&
- prev_state.event == PM_EVENT_FREEZE) {
- struct pmb_entry *pmbe;
+ read_lock(&pmb_rwlock);
- read_lock(&pmb_rwlock);
-
- for (i = 0; i < ARRAY_SIZE(pmb_entry_list); i++) {
- if (test_bit(i, pmb_map)) {
- pmbe = &pmb_entry_list[i];
- set_pmb_entry(pmbe);
- }
+ for (i = 0; i < ARRAY_SIZE(pmb_entry_list); i++) {
+ if (test_bit(i, pmb_map)) {
+ pmbe = &pmb_entry_list[i];
+ set_pmb_entry(pmbe);
}
-
- read_unlock(&pmb_rwlock);
}
- prev_state = state;
-
- return 0;
+ read_unlock(&pmb_rwlock);
}
-static int pmb_sysdev_resume(struct sys_device *dev)
-{
- return pmb_sysdev_suspend(dev, PMSG_ON);
-}
-
-static struct sysdev_driver pmb_sysdev_driver = {
- .suspend = pmb_sysdev_suspend,
- .resume = pmb_sysdev_resume,
+static struct syscore_ops pmb_syscore_ops = {
+ .resume = pmb_syscore_resume,
};
static int __init pmb_sysdev_init(void)
{
- return sysdev_driver_register(&cpu_sysdev_class, &pmb_sysdev_driver);
+ register_syscore_ops(&pmb_syscore_ops);
+ return 0;
}
subsys_initcall(pmb_sysdev_init);
#endif