lkml.org 
[lkml]   [2017]   [Jul]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 3/4] PM: Print wall time at suspend entry and exit
Date
Permits power state and battery life diagnosis.

Feature activated by CONFIG_RTC_SHOW_TIME.

Signed-off-by: Mark Salyzyn <salyzyn@android.com>
---
kernel/power/suspend.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 3ecf275d7e44..f44d2152ab3f 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -26,6 +26,7 @@
#include <linux/suspend.h>
#include <linux/syscore_ops.h>
#include <linux/ftrace.h>
+#include <linux/rtc.h>
#include <trace/events/power.h>
#include <linux/compiler.h>
#include <linux/moduleparam.h>
@@ -579,6 +580,7 @@ int pm_suspend(suspend_state_t state)
if (state <= PM_SUSPEND_ON || state >= PM_SUSPEND_MAX)
return -EINVAL;

+ rtc_show_time("PM: suspend entry");
error = enter_state(state);
if (error) {
suspend_stats.fail++;
@@ -586,6 +588,7 @@ int pm_suspend(suspend_state_t state)
} else {
suspend_stats.success++;
}
+ rtc_show_time("PM: suspend exit");
return error;
}
EXPORT_SYMBOL(pm_suspend);
--
2.13.2.932.g7449e964c-goog
\
 
 \ /
  Last update: 2017-07-18 19:26    [W:0.336 / U:0.064 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site