Revert "PM: Implement wakelock api."

This reverts commit 596f2eedbddfce675d86d0c4ba992294cd39aaba.

Change-Id: I7bf20d381ad21edc1720e411de16b2d617ae1a63

4 files changed, 0 insertions, 630 deletions

diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index 4916349285b..1878b6ef2a2 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -18,25 +18,6 @@ config SUSPEND_FREEZER
 
 	  Turning OFF this setting is NOT recommended! If in doubt, say Y.
 
-config HAS_WAKELOCK
-	bool
-
-config WAKELOCK
-	bool "Wake lock"
-	depends on PM && RTC_CLASS
-	default n
-	select HAS_WAKELOCK
-	---help---
-	  Enable wakelocks. When user space request a sleep state the
-	  sleep request will be delayed until no wake locks are held.
-
-config WAKELOCK_STAT
-	bool "Wake lock stats"
-	depends on WAKELOCK
-	default y
-	---help---
-	  Report wake lock stats in /proc/wakelocks
-
 config HIBERNATE_CALLBACKS
 	bool
 
diff --git a/kernel/power/Makefile b/kernel/power/Makefile
index 0f41f20311c..58f237137c9 100644
--- a/kernel/power/Makefile
+++ b/kernel/power/Makefile
@@ -8,7 +8,6 @@ obj-$(CONFIG_SUSPEND)		+= suspend.o
 obj-$(CONFIG_PM_TEST_SUSPEND)	+= suspend_test.o
 obj-$(CONFIG_HIBERNATION)	+= hibernate.o snapshot.o swap.o user.o \
 				   block_io.o
-obj-$(CONFIG_WAKELOCK)		+= wakelock.o
 obj-$(CONFIG_SUSPEND_TIME)	+= suspend_time.o
 
 obj-$(CONFIG_MAGIC_SYSRQ)	+= poweroff.o
diff --git a/kernel/power/power.h b/kernel/power/power.h
index fcf91e3d181..21724eee520 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -269,10 +269,3 @@ static inline void suspend_thaw_processes(void)
 {
 }
 #endif
-
-#ifdef CONFIG_WAKELOCK
-/* kernel/power/wakelock.c */
-extern struct workqueue_struct *suspend_work_queue;
-extern struct wake_lock main_wake_lock;
-extern suspend_state_t requested_suspend_state;
-#endif
diff --git a/kernel/power/wakelock.c b/kernel/power/wakelock.c
deleted file mode 100644
index 2ee459fe445..00000000000
--- a/kernel/power/wakelock.c
+++ /dev/null
@@ -1,603 +0,0 @@
-/* kernel/power/wakelock.c
- *
- * Copyright (C) 2005-2008 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/rtc.h>
-#include <linux/suspend.h>
-#include <linux/syscalls.h> /* sys_sync */
-#include <linux/wakelock.h>
-#ifdef CONFIG_WAKELOCK_STAT
-#include <linux/proc_fs.h>
-#endif
-#include "power.h"
-
-enum {
-	DEBUG_EXIT_SUSPEND = 1U << 0,
-	DEBUG_WAKEUP = 1U << 1,
-	DEBUG_SUSPEND = 1U << 2,
-	DEBUG_EXPIRE = 1U << 3,
-	DEBUG_WAKE_LOCK = 1U << 4,
-};
-static int debug_mask = DEBUG_EXIT_SUSPEND | DEBUG_WAKEUP;
-module_param_named(debug_mask, debug_mask, int, S_IRUGO | S_IWUSR | S_IWGRP);
-
-#define WAKE_LOCK_TYPE_MASK              (0x0f)
-#define WAKE_LOCK_INITIALIZED            (1U << 8)
-#define WAKE_LOCK_ACTIVE                 (1U << 9)
-#define WAKE_LOCK_AUTO_EXPIRE            (1U << 10)
-#define WAKE_LOCK_PREVENTING_SUSPEND     (1U << 11)
-
-static DEFINE_SPINLOCK(list_lock);
-static LIST_HEAD(inactive_locks);
-static struct list_head active_wake_locks[WAKE_LOCK_TYPE_COUNT];
-static int current_event_num;
-struct workqueue_struct *suspend_work_queue;
-struct wake_lock main_wake_lock;
-suspend_state_t requested_suspend_state = PM_SUSPEND_MEM;
-static struct wake_lock unknown_wakeup;
-
-#ifdef CONFIG_WAKELOCK_STAT
-static struct wake_lock deleted_wake_locks;
-static ktime_t last_sleep_time_update;
-static int wait_for_wakeup;
-
-int get_expired_time(struct wake_lock *lock, ktime_t *expire_time)
-{
-	struct timespec ts;
-	struct timespec kt;
-	struct timespec tomono;
-	struct timespec delta;
-	struct timespec sleep;
-	long timeout;
-
-	if (!(lock->flags & WAKE_LOCK_AUTO_EXPIRE))
-		return 0;
-	get_xtime_and_monotonic_and_sleep_offset(&kt, &tomono, &sleep);
-	timeout = lock->expires - jiffies;
-	if (timeout > 0)
-		return 0;
-	jiffies_to_timespec(-timeout, &delta);
-	set_normalized_timespec(&ts, kt.tv_sec + tomono.tv_sec - delta.tv_sec,
-				kt.tv_nsec + tomono.tv_nsec - delta.tv_nsec);
-	*expire_time = timespec_to_ktime(ts);
-	return 1;
-}
-
-
-static int print_lock_stat(struct seq_file *m, struct wake_lock *lock)
-{
-	int lock_count = lock->stat.count;
-	int expire_count = lock->stat.expire_count;
-	ktime_t active_time = ktime_set(0, 0);
-	ktime_t total_time = lock->stat.total_time;
-	ktime_t max_time = lock->stat.max_time;
-
-	ktime_t prevent_suspend_time = lock->stat.prevent_suspend_time;
-	if (lock->flags & WAKE_LOCK_ACTIVE) {
-		ktime_t now, add_time;
-		int expired = get_expired_time(lock, &now);
-		if (!expired)
-			now = ktime_get();
-		add_time = ktime_sub(now, lock->stat.last_time);
-		lock_count++;
-		if (!expired)
-			active_time = add_time;
-		else
-			expire_count++;
-		total_time = ktime_add(total_time, add_time);
-		if (lock->flags & WAKE_LOCK_PREVENTING_SUSPEND)
-			prevent_suspend_time = ktime_add(prevent_suspend_time,
-					ktime_sub(now, last_sleep_time_update));
-		if (add_time.tv64 > max_time.tv64)
-			max_time = add_time;
-	}
-
-	return seq_printf(m,
-		     "\"%s\"\t%d\t%d\t%d\t%lld\t%lld\t%lld\t%lld\t%lld\n",
-		     lock->name, lock_count, expire_count,
-		     lock->stat.wakeup_count, ktime_to_ns(active_time),
-		     ktime_to_ns(total_time),
-		     ktime_to_ns(prevent_suspend_time), ktime_to_ns(max_time),
-		     ktime_to_ns(lock->stat.last_time));
-}
-
-static int wakelock_stats_show(struct seq_file *m, void *unused)
-{
-	unsigned long irqflags;
-	struct wake_lock *lock;
-	int ret;
-	int type;
-
-	spin_lock_irqsave(&list_lock, irqflags);
-
-	ret = seq_puts(m, "name\tcount\texpire_count\twake_count\tactive_since"
-			"\ttotal_time\tsleep_time\tmax_time\tlast_change\n");
-	list_for_each_entry(lock, &inactive_locks, link)
-		ret = print_lock_stat(m, lock);
-	for (type = 0; type < WAKE_LOCK_TYPE_COUNT; type++) {
-		list_for_each_entry(lock, &active_wake_locks[type], link)
-			ret = print_lock_stat(m, lock);
-	}
-	spin_unlock_irqrestore(&list_lock, irqflags);
-	return 0;
-}
-
-static void wake_unlock_stat_locked(struct wake_lock *lock, int expired)
-{
-	ktime_t duration;
-	ktime_t now;
-	if (!(lock->flags & WAKE_LOCK_ACTIVE))
-		return;
-	if (get_expired_time(lock, &now))
-		expired = 1;
-	else
-		now = ktime_get();
-	lock->stat.count++;
-	if (expired)
-		lock->stat.expire_count++;
-	duration = ktime_sub(now, lock->stat.last_time);
-	lock->stat.total_time = ktime_add(lock->stat.total_time, duration);
-	if (ktime_to_ns(duration) > ktime_to_ns(lock->stat.max_time))
-		lock->stat.max_time = duration;
-	lock->stat.last_time = ktime_get();
-	if (lock->flags & WAKE_LOCK_PREVENTING_SUSPEND) {
-		duration = ktime_sub(now, last_sleep_time_update);
-		lock->stat.prevent_suspend_time = ktime_add(
-			lock->stat.prevent_suspend_time, duration);
-		lock->flags &= ~WAKE_LOCK_PREVENTING_SUSPEND;
-	}
-}
-
-static void update_sleep_wait_stats_locked(int done)
-{
-	struct wake_lock *lock;
-	ktime_t now, etime, elapsed, add;
-	int expired;
-
-	now = ktime_get();
-	elapsed = ktime_sub(now, last_sleep_time_update);
-	list_for_each_entry(lock, &active_wake_locks[WAKE_LOCK_SUSPEND], link) {
-		expired = get_expired_time(lock, &etime);
-		if (lock->flags & WAKE_LOCK_PREVENTING_SUSPEND) {
-			if (expired)
-				add = ktime_sub(etime, last_sleep_time_update);
-			else
-				add = elapsed;
-			lock->stat.prevent_suspend_time = ktime_add(
-				lock->stat.prevent_suspend_time, add);
-		}
-		if (done || expired)
-			lock->flags &= ~WAKE_LOCK_PREVENTING_SUSPEND;
-		else
-			lock->flags |= WAKE_LOCK_PREVENTING_SUSPEND;
-	}
-	last_sleep_time_update = now;
-}
-#endif
-
-
-static void expire_wake_lock(struct wake_lock *lock)
-{
-#ifdef CONFIG_WAKELOCK_STAT
-	wake_unlock_stat_locked(lock, 1);
-#endif
-	lock->flags &= ~(WAKE_LOCK_ACTIVE | WAKE_LOCK_AUTO_EXPIRE);
-	list_del(&lock->link);
-	list_add(&lock->link, &inactive_locks);
-	if (debug_mask & (DEBUG_WAKE_LOCK | DEBUG_EXPIRE))
-		pr_info("expired wake lock %s\n", lock->name);
-}
-
-/* Caller must acquire the list_lock spinlock */
-static void print_active_locks(int type)
-{
-	struct wake_lock *lock;
-	bool print_expired = true;
-
-	BUG_ON(type >= WAKE_LOCK_TYPE_COUNT);
-	list_for_each_entry(lock, &active_wake_locks[type], link) {
-		if (lock->flags & WAKE_LOCK_AUTO_EXPIRE) {
-			long timeout = lock->expires - jiffies;
-			if (timeout > 0)
-				pr_info("active wake lock %s, time left %ld\n",
-					lock->name, timeout);
-			else if (print_expired)
-				pr_info("wake lock %s, expired\n", lock->name);
-		} else {
-			pr_info("active wake lock %s\n", lock->name);
-			if (!(debug_mask & DEBUG_EXPIRE))
-				print_expired = false;
-		}
-	}
-}
-
-static long has_wake_lock_locked(int type)
-{
-	struct wake_lock *lock, *n;
-	long max_timeout = 0;
-
-	BUG_ON(type >= WAKE_LOCK_TYPE_COUNT);
-	list_for_each_entry_safe(lock, n, &active_wake_locks[type], link) {
-		if (lock->flags & WAKE_LOCK_AUTO_EXPIRE) {
-			long timeout = lock->expires - jiffies;
-			if (timeout <= 0)
-				expire_wake_lock(lock);
-			else if (timeout > max_timeout)
-				max_timeout = timeout;
-		} else
-			return -1;
-	}
-	return max_timeout;
-}
-
-long has_wake_lock(int type)
-{
-	long ret;
-	unsigned long irqflags;
-	spin_lock_irqsave(&list_lock, irqflags);
-	ret = has_wake_lock_locked(type);
-	if (ret && (debug_mask & DEBUG_WAKEUP) && type == WAKE_LOCK_SUSPEND)
-		print_active_locks(type);
-	spin_unlock_irqrestore(&list_lock, irqflags);
-	return ret;
-}
-
-static void suspend(struct work_struct *work)
-{
-	int ret;
-	int entry_event_num;
-
-	if (has_wake_lock(WAKE_LOCK_SUSPEND)) {
-		if (debug_mask & DEBUG_SUSPEND)
-			pr_info("suspend: abort suspend\n");
-		return;
-	}
-
-	entry_event_num = current_event_num;
-	sys_sync();
-	if (debug_mask & DEBUG_SUSPEND)
-		pr_info("suspend: enter suspend\n");
-	ret = pm_suspend(requested_suspend_state);
-	if (debug_mask & DEBUG_EXIT_SUSPEND) {
-		struct timespec ts;
-		struct rtc_time tm;
-		getnstimeofday(&ts);
-		rtc_time_to_tm(ts.tv_sec, &tm);
-		pr_info("suspend: exit suspend, ret = %d "
-			"(%d-%02d-%02d %02d:%02d:%02d.%09lu UTC)\n", ret,
-			tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
-			tm.tm_hour, tm.tm_min, tm.tm_sec, ts.tv_nsec);
-	}
-	if (current_event_num == entry_event_num) {
-		if (debug_mask & DEBUG_SUSPEND)
-			pr_info("suspend: pm_suspend returned with no event\n");
-		wake_lock_timeout(&unknown_wakeup, HZ / 2);
-	}
-}
-static DECLARE_WORK(suspend_work, suspend);
-
-static void expire_wake_locks(unsigned long data)
-{
-	long has_lock;
-	unsigned long irqflags;
-	if (debug_mask & DEBUG_EXPIRE)
-		pr_info("expire_wake_locks: start\n");
-	spin_lock_irqsave(&list_lock, irqflags);
-	if (debug_mask & DEBUG_SUSPEND)
-		print_active_locks(WAKE_LOCK_SUSPEND);
-	has_lock = has_wake_lock_locked(WAKE_LOCK_SUSPEND);
-	if (debug_mask & DEBUG_EXPIRE)
-		pr_info("expire_wake_locks: done, has_lock %ld\n", has_lock);
-	if (has_lock == 0)
-		queue_work(suspend_work_queue, &suspend_work);
-	spin_unlock_irqrestore(&list_lock, irqflags);
-}
-static DEFINE_TIMER(expire_timer, expire_wake_locks, 0, 0);
-
-static int power_suspend_late(struct device *dev)
-{
-	int ret = has_wake_lock(WAKE_LOCK_SUSPEND) ? -EAGAIN : 0;
-#ifdef CONFIG_WAKELOCK_STAT
-	wait_for_wakeup = !ret;
-#endif
-	if (debug_mask & DEBUG_SUSPEND)
-		pr_info("power_suspend_late return %d\n", ret);
-	return ret;
-}
-
-static struct dev_pm_ops power_driver_pm_ops = {
-	.suspend_noirq = power_suspend_late,
-};
-
-static struct platform_driver power_driver = {
-	.driver.name = "power",
-	.driver.pm = &power_driver_pm_ops,
-};
-static struct platform_device power_device = {
-	.name = "power",
-};
-
-void wake_lock_init(struct wake_lock *lock, int type, const char *name)
-{
-	unsigned long irqflags = 0;
-
-	if (name)
-		lock->name = name;
-	BUG_ON(!lock->name);
-
-	if (debug_mask & DEBUG_WAKE_LOCK)
-		pr_info("wake_lock_init name=%s\n", lock->name);
-#ifdef CONFIG_WAKELOCK_STAT
-	lock->stat.count = 0;
-	lock->stat.expire_count = 0;
-	lock->stat.wakeup_count = 0;
-	lock->stat.total_time = ktime_set(0, 0);
-	lock->stat.prevent_suspend_time = ktime_set(0, 0);
-	lock->stat.max_time = ktime_set(0, 0);
-	lock->stat.last_time = ktime_set(0, 0);
-#endif
-	lock->flags = (type & WAKE_LOCK_TYPE_MASK) | WAKE_LOCK_INITIALIZED;
-
-	INIT_LIST_HEAD(&lock->link);
-	spin_lock_irqsave(&list_lock, irqflags);
-	list_add(&lock->link, &inactive_locks);
-	spin_unlock_irqrestore(&list_lock, irqflags);
-}
-EXPORT_SYMBOL(wake_lock_init);
-
-void wake_lock_destroy(struct wake_lock *lock)
-{
-	unsigned long irqflags;
-	if (debug_mask & DEBUG_WAKE_LOCK)
-		pr_info("wake_lock_destroy name=%s\n", lock->name);
-	spin_lock_irqsave(&list_lock, irqflags);
-	lock->flags &= ~WAKE_LOCK_INITIALIZED;
-#ifdef CONFIG_WAKELOCK_STAT
-	if (lock->stat.count) {
-		deleted_wake_locks.stat.count += lock->stat.count;
-		deleted_wake_locks.stat.expire_count += lock->stat.expire_count;
-		deleted_wake_locks.stat.total_time =
-			ktime_add(deleted_wake_locks.stat.total_time,
-				  lock->stat.total_time);
-		deleted_wake_locks.stat.prevent_suspend_time =
-			ktime_add(deleted_wake_locks.stat.prevent_suspend_time,
-				  lock->stat.prevent_suspend_time);
-		deleted_wake_locks.stat.max_time =
-			ktime_add(deleted_wake_locks.stat.max_time,
-				  lock->stat.max_time);
-	}
-#endif
-	list_del(&lock->link);
-	spin_unlock_irqrestore(&list_lock, irqflags);
-}
-EXPORT_SYMBOL(wake_lock_destroy);
-
-static void wake_lock_internal(
-	struct wake_lock *lock, long timeout, int has_timeout)
-{
-	int type;
-	unsigned long irqflags;
-	long expire_in;
-
-	spin_lock_irqsave(&list_lock, irqflags);
-	type = lock->flags & WAKE_LOCK_TYPE_MASK;
-	BUG_ON(type >= WAKE_LOCK_TYPE_COUNT);
-	BUG_ON(!(lock->flags & WAKE_LOCK_INITIALIZED));
-#ifdef CONFIG_WAKELOCK_STAT
-	if (type == WAKE_LOCK_SUSPEND && wait_for_wakeup) {
-		if (debug_mask & DEBUG_WAKEUP)
-			pr_info("wakeup wake lock: %s\n", lock->name);
-		wait_for_wakeup = 0;
-		lock->stat.wakeup_count++;
-	}
-	if ((lock->flags & WAKE_LOCK_AUTO_EXPIRE) &&
-	    (long)(lock->expires - jiffies) <= 0) {
-		wake_unlock_stat_locked(lock, 0);
-		lock->stat.last_time = ktime_get();
-	}
-#endif
-	if (!(lock->flags & WAKE_LOCK_ACTIVE)) {
-		lock->flags |= WAKE_LOCK_ACTIVE;
-#ifdef CONFIG_WAKELOCK_STAT
-		lock->stat.last_time = ktime_get();
-#endif
-	}
-	list_del(&lock->link);
-	if (has_timeout) {
-		if (debug_mask & DEBUG_WAKE_LOCK)
-			pr_info("wake_lock: %s, type %d, timeout %ld.%03lu\n",
-				lock->name, type, timeout / HZ,
-				(timeout % HZ) * MSEC_PER_SEC / HZ);
-		lock->expires = jiffies + timeout;
-		lock->flags |= WAKE_LOCK_AUTO_EXPIRE;
-		list_add_tail(&lock->link, &active_wake_locks[type]);
-	} else {
-		if (debug_mask & DEBUG_WAKE_LOCK)
-			pr_info("wake_lock: %s, type %d\n", lock->name, type);
-		lock->expires = LONG_MAX;
-		lock->flags &= ~WAKE_LOCK_AUTO_EXPIRE;
-		list_add(&lock->link, &active_wake_locks[type]);
-	}
-	if (type == WAKE_LOCK_SUSPEND) {
-		current_event_num++;
-#ifdef CONFIG_WAKELOCK_STAT
-		if (lock == &main_wake_lock)
-			update_sleep_wait_stats_locked(1);
-		else if (!wake_lock_active(&main_wake_lock))
-			update_sleep_wait_stats_locked(0);
-#endif
-		if (has_timeout)
-			expire_in = has_wake_lock_locked(type);
-		else
-			expire_in = -1;
-		if (expire_in > 0) {
-			if (debug_mask & DEBUG_EXPIRE)
-				pr_info("wake_lock: %s, start expire timer, "
-					"%ld\n", lock->name, expire_in);
-			mod_timer(&expire_timer, jiffies + expire_in);
-		} else {
-			if (del_timer(&expire_timer))
-				if (debug_mask & DEBUG_EXPIRE)
-					pr_info("wake_lock: %s, stop expire timer\n",
-						lock->name);
-			if (expire_in == 0)
-				queue_work(suspend_work_queue, &suspend_work);
-		}
-	}
-	spin_unlock_irqrestore(&list_lock, irqflags);
-}
-
-void wake_lock(struct wake_lock *lock)
-{
-	wake_lock_internal(lock, 0, 0);
-}
-EXPORT_SYMBOL(wake_lock);
-
-void wake_lock_timeout(struct wake_lock *lock, long timeout)
-{
-	wake_lock_internal(lock, timeout, 1);
-}
-EXPORT_SYMBOL(wake_lock_timeout);
-
-void wake_unlock(struct wake_lock *lock)
-{
-	int type;
-	unsigned long irqflags;
-	spin_lock_irqsave(&list_lock, irqflags);
-	type = lock->flags & WAKE_LOCK_TYPE_MASK;
-#ifdef CONFIG_WAKELOCK_STAT
-	wake_unlock_stat_locked(lock, 0);
-#endif
-	if (debug_mask & DEBUG_WAKE_LOCK)
-		pr_info("wake_unlock: %s\n", lock->name);
-	lock->flags &= ~(WAKE_LOCK_ACTIVE | WAKE_LOCK_AUTO_EXPIRE);
-	list_del(&lock->link);
-	list_add(&lock->link, &inactive_locks);
-	if (type == WAKE_LOCK_SUSPEND) {
-		long has_lock = has_wake_lock_locked(type);
-		if (has_lock > 0) {
-			if (debug_mask & DEBUG_EXPIRE)
-				pr_info("wake_unlock: %s, start expire timer, "
-					"%ld\n", lock->name, has_lock);
-			mod_timer(&expire_timer, jiffies + has_lock);
-		} else {
-			if (del_timer(&expire_timer))
-				if (debug_mask & DEBUG_EXPIRE)
-					pr_info("wake_unlock: %s, stop expire "
-						"timer\n", lock->name);
-			if (has_lock == 0)
-				queue_work(suspend_work_queue, &suspend_work);
-		}
-		if (lock == &main_wake_lock) {
-			if (debug_mask & DEBUG_SUSPEND)
-				print_active_locks(WAKE_LOCK_SUSPEND);
-#ifdef CONFIG_WAKELOCK_STAT
-			update_sleep_wait_stats_locked(0);
-#endif
-		}
-	}
-	spin_unlock_irqrestore(&list_lock, irqflags);
-}
-EXPORT_SYMBOL(wake_unlock);
-
-int wake_lock_active(struct wake_lock *lock)
-{
-	return !!(lock->flags & WAKE_LOCK_ACTIVE);
-}
-EXPORT_SYMBOL(wake_lock_active);
-
-static int wakelock_stats_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, wakelock_stats_show, NULL);
-}
-
-static const struct file_operations wakelock_stats_fops = {
-	.owner = THIS_MODULE,
-	.open = wakelock_stats_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-
-static int __init wakelocks_init(void)
-{
-	int ret;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(active_wake_locks); i++)
-		INIT_LIST_HEAD(&active_wake_locks[i]);
-
-#ifdef CONFIG_WAKELOCK_STAT
-	wake_lock_init(&deleted_wake_locks, WAKE_LOCK_SUSPEND,
-			"deleted_wake_locks");
-#endif
-	wake_lock_init(&main_wake_lock, WAKE_LOCK_SUSPEND, "main");
-	wake_lock(&main_wake_lock);
-	wake_lock_init(&unknown_wakeup, WAKE_LOCK_SUSPEND, "unknown_wakeups");
-
-	ret = platform_device_register(&power_device);
-	if (ret) {
-		pr_err("wakelocks_init: platform_device_register failed\n");
-		goto err_platform_device_register;
-	}
-	ret = platform_driver_register(&power_driver);
-	if (ret) {
-		pr_err("wakelocks_init: platform_driver_register failed\n");
-		goto err_platform_driver_register;
-	}
-
-	suspend_work_queue = create_singlethread_workqueue("suspend");
-	if (suspend_work_queue == NULL) {
-		ret = -ENOMEM;
-		goto err_suspend_work_queue;
-	}
-
-#ifdef CONFIG_WAKELOCK_STAT
-	proc_create("wakelocks", S_IRUGO, NULL, &wakelock_stats_fops);
-#endif
-
-	return 0;
-
-err_suspend_work_queue:
-	platform_driver_unregister(&power_driver);
-err_platform_driver_register:
-	platform_device_unregister(&power_device);
-err_platform_device_register:
-	wake_lock_destroy(&unknown_wakeup);
-	wake_lock_destroy(&main_wake_lock);
-#ifdef CONFIG_WAKELOCK_STAT
-	wake_lock_destroy(&deleted_wake_locks);
-#endif
-	return ret;
-}
-
-static void  __exit wakelocks_exit(void)
-{
-#ifdef CONFIG_WAKELOCK_STAT
-	remove_proc_entry("wakelocks", NULL);
-#endif
-	destroy_workqueue(suspend_work_queue);
-	platform_driver_unregister(&power_driver);
-	platform_device_unregister(&power_device);
-	wake_lock_destroy(&unknown_wakeup);
-	wake_lock_destroy(&main_wake_lock);
-#ifdef CONFIG_WAKELOCK_STAT
-	wake_lock_destroy(&deleted_wake_locks);
-#endif
-}
-
-core_initcall(wakelocks_init);
-module_exit(wakelocks_exit);