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authorColin Cross <ccross@android.com>2013-05-21 22:32:14 -0700
committerJohn Stultz <john.stultz@linaro.org>2013-05-29 12:57:34 -0700
commit5c83545f24ab3dd67e0ae0e2b795fea750f08c34 (patch)
tree72ad0d3d33302a9100c17855bc08bf936cbdd081 /kernel/time/Makefile
parent11ffa9d6065f344a9bd769a2452f26f2f671e5f8 (diff)
power: Add option to log time spent in suspend
Below is a patch from android kernel that maintains a histogram of suspend times. Please review and provide feedback. Statistices on the time spent in suspend are kept in /sys/kernel/debug/sleep_time. Cc: Android Kernel Team <kernel-team@android.com> Cc: Colin Cross <ccross@android.com> Cc: Todd Poynor <toddpoynor@google.com> Cc: San Mehat <san@google.com> Cc: Benoit Goby <benoit@android.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: Todd Poynor <toddpoynor@google.com> [zoran.markovic@linaro.org: Re-formatted suspend time table to better fit expected values. Moved accounting of suspend time into timekeeping core. Removed CONFIG_SUSPEND_TIME flag and made the feature conditional on CONFIG_DEBUG_FS. Changed the file name to sleep_time to better fit terminology in timekeeping core. Changed seq_printf to seq_puts. Tweaked commit message] Signed-off-by: Zoran Markovic <zoran.markovic@linaro.org> Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'kernel/time/Makefile')
-rw-r--r--kernel/time/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/time/Makefile b/kernel/time/Makefile
index ff7d9d2ab504..d52ac8bf0006 100644
--- a/kernel/time/Makefile
+++ b/kernel/time/Makefile
@@ -7,3 +7,4 @@ obj-$(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) += tick-broadcast.o
obj-$(CONFIG_TICK_ONESHOT) += tick-oneshot.o
obj-$(CONFIG_TICK_ONESHOT) += tick-sched.o
obj-$(CONFIG_TIMER_STATS) += timer_stats.o
+obj-$(CONFIG_DEBUG_FS) += timekeeping_debug.o