diff options
author | =?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> | 2011-10-09 02:15:47 +0100 |
---|---|---|
committer | Andy Green <andy.green@linaro.org> | 2011-10-09 02:15:47 +0100 |
commit | b4e8e6a32f9c961ecba64fb4ed406347db7298ef (patch) | |
tree | 962c05e116210562013681d3a9fe13edbe4467b5 /kernel | |
parent | bc94c4e49f59a8773955d31ee305a9eba9919cfa (diff) |
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.
Diffstat (limited to 'kernel')
-rw-r--r-- | kernel/power/main.c | 11 | ||||
-rw-r--r-- | kernel/power/suspend.c | 3 |
2 files changed, 14 insertions, 0 deletions
diff --git a/kernel/power/main.c b/kernel/power/main.c index 6c601f87196..8021065555f 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -171,7 +171,11 @@ static ssize_t state_store(struct kobject *kobj, struct kobj_attribute *attr, 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; @@ -193,8 +197,15 @@ static ssize_t state_store(struct kobject *kobj, struct kobj_attribute *attr, 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; diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index b6b71ad2208..136e475764e 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -28,6 +28,9 @@ #include "power.h" const char *const pm_states[PM_SUSPEND_MAX] = { +#ifdef CONFIG_EARLYSUSPEND + [PM_SUSPEND_ON] = "on", +#endif [PM_SUSPEND_STANDBY] = "standby", [PM_SUSPEND_MEM] = "mem", }; |