Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b9acbfee authored by Todd Poynor's avatar Todd Poynor Committed by Amit Pundir
Browse files

PM / Suspend: Print wall time at suspend entry and exit 



Change-Id: I92f252414c013b018b9a392eae1ee039aa0e89dc
Signed-off-by: default avatarTodd Poynor <toddpoynor@google.com>
parent e1cd69b7

kernel/power/suspend.c

+15 −0
Original line number Diff line number Diff line
@@ -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>
@@ -527,6 +528,18 @@ static int enter_state(suspend_state_t state) 
	return error;

}



static void pm_suspend_marker(char *annotation)

{

	struct timespec ts;

	struct rtc_time tm;



	getnstimeofday(&ts);

	rtc_time_to_tm(ts.tv_sec, &tm);

	pr_info("PM: suspend %s %d-%02d-%02d %02d:%02d:%02d.%09lu UTC\n",

		annotation, tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,

		tm.tm_hour, tm.tm_min, tm.tm_sec, ts.tv_nsec);

}



/**

 * pm_suspend - Externally visible function for suspending the system.

 * @state: System sleep state to enter.
@@ -541,6 +554,7 @@ int pm_suspend(suspend_state_t state) 
	if (state <= PM_SUSPEND_ON || state >= PM_SUSPEND_MAX)

		return -EINVAL;



	pm_suspend_marker("entry");

	error = enter_state(state);

	if (error) {

		suspend_stats.fail++;
@@ -548,6 +562,7 @@ int pm_suspend(suspend_state_t state) 
	} else {

		suspend_stats.success++;

	}

	pm_suspend_marker("exit");

	return error;

}

EXPORT_SYMBOL(pm_suspend);