mirror of https://github.com/hak5/openwrt.git
53 lines
1.5 KiB
Diff
53 lines
1.5 KiB
Diff
|
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;
|