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git://projects.qi-hardware.com/openwrt-xburst.git
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53 lines
1.5 KiB
Diff
53 lines
1.5 KiB
Diff
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From 7b236e69bb4403f20fbdef81907d46b4d32d4af8 Mon Sep 17 00:00:00 2001
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From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com>
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Date: Thu, 9 Oct 2008 19:17:11 -0700
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Subject: [PATCH 068/134] PM: Enable early suspend through /sys/power/state
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If EARLYSUSPEND is enabled then writes to /sys/power/state no longer
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blocks, and the kernel will try to enter the requested state every
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time no wakelocks are held. Write "on" to resume normal operation.
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---
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kernel/power/main.c | 14 ++++++++++++++
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1 files changed, 14 insertions(+), 0 deletions(-)
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--- a/kernel/power/main.c
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+++ b/kernel/power/main.c
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@@ -408,6 +408,9 @@ static void suspend_finish(void)
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static const char * const pm_states[PM_SUSPEND_MAX] = {
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+#ifdef CONFIG_EARLYSUSPEND
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+ [PM_SUSPEND_ON] = "on",
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+#endif
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[PM_SUSPEND_STANDBY] = "standby",
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[PM_SUSPEND_MEM] = "mem",
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};
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@@ -525,7 +528,11 @@ static ssize_t state_store(struct kobjec
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const char *buf, size_t n)
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{
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#ifdef CONFIG_SUSPEND
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+#ifdef CONFIG_EARLYSUSPEND
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+ suspend_state_t state = PM_SUSPEND_ON;
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+#else
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suspend_state_t state = PM_SUSPEND_STANDBY;
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+#endif
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const char * const *s;
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#endif
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char *p;
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@@ -547,8 +554,15 @@ static ssize_t state_store(struct kobjec
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break;
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}
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if (state < PM_SUSPEND_MAX && *s)
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+#ifdef CONFIG_EARLYSUSPEND
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+ if (state == PM_SUSPEND_ON || valid_state(state)) {
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+ error = 0;
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+ request_suspend_state(state);
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+ }
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+#else
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error = enter_state(state);
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#endif
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+#endif
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Exit:
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return error ? error : n;
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