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Message-Id: <20170718172617.114825-1-salyzyn@android.com>
Date: Tue, 18 Jul 2017 10:26:16 -0700
From: Mark Salyzyn <salyzyn@...roid.com>
To: linux-kernel@...r.kernel.org
Cc: rjw@...ysocki.net, len.brown@...el.com, pavel@....cz,
linux-pm@...r.kernel.org, a.zummo@...ertech.it,
alexandre.belloni@...e-electrons.com, linux-rtc@...r.kernel.org,
Mark Salyzyn <salyzyn@...roid.com>
Subject: [PATCH 4/4] PM: Print wall time at hibernate entry and exit
Permits power state and battery life diagnosis.
Feature activated by CONFIG_RTC_SHOW_TIME.
Signed-off-by: Mark Salyzyn <salyzyn@...roid.com>
---
kernel/power/hibernate.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index e1914c7b85b1..0b5460f9189b 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -32,11 +32,11 @@
#include <linux/ctype.h>
#include <linux/genhd.h>
#include <linux/ktime.h>
+#include <linux/rtc.h>
#include <trace/events/power.h>
#include "power.h"
-
static int nocompress;
static int noresume;
static int nohibernate;
@@ -342,6 +342,7 @@ int hibernation_snapshot(int platform_mode)
pm_message_t msg;
int error;
+ rtc_show_time("PM: hibernation entry");
pm_suspend_clear_flags();
error = platform_begin(platform_mode);
if (error)
@@ -409,6 +410,7 @@ int hibernation_snapshot(int platform_mode)
thaw_kernel_threads();
Cleanup:
swsusp_free();
+ rtc_show_time("PM: hibernation exit");
goto Close;
}
--
2.13.2.932.g7449e964c-goog
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