From 7b236e69bb4403f20fbdef81907d46b4d32d4af8 Mon Sep 17 00:00:00 2001
From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com>
Date: Thu, 9 Oct 2008 19:17:11 -0700
Subject: [PATCH 068/134] PM: Enable early suspend through /sys/power/state

If EARLYSUSPEND is enabled then writes to /sys/power/state no longer
blocks, and the kernel will try to enter the requested state every
time no wakelocks are held. Write "on" to resume normal operation.
---
 kernel/power/main.c |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -408,6 +408,9 @@ static void suspend_finish(void)
 
 
 static const char * const pm_states[PM_SUSPEND_MAX] = {
+#ifdef CONFIG_EARLYSUSPEND
+	[PM_SUSPEND_ON]		= "on",
+#endif
 	[PM_SUSPEND_STANDBY]	= "standby",
 	[PM_SUSPEND_MEM]	= "mem",
 };
@@ -525,7 +528,11 @@ static ssize_t state_store(struct kobjec
 			   const char *buf, size_t n)
 {
 #ifdef CONFIG_SUSPEND
+#ifdef CONFIG_EARLYSUSPEND
+	suspend_state_t state = PM_SUSPEND_ON;
+#else
 	suspend_state_t state = PM_SUSPEND_STANDBY;
+#endif
 	const char * const *s;
 #endif
 	char *p;
@@ -547,8 +554,15 @@ static ssize_t state_store(struct kobjec
 			break;
 	}
 	if (state < PM_SUSPEND_MAX && *s)
+#ifdef CONFIG_EARLYSUSPEND
+		if (state == PM_SUSPEND_ON || valid_state(state)) {
+			error = 0;
+			request_suspend_state(state);
+		}
+#else
 		error = enter_state(state);
 #endif
+#endif
 
  Exit:
 	return error ? error : n;