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Commit 2ce98689 authored by Srinivas Pandruvada's avatar Srinivas Pandruvada Committed by Rafael J. Wysocki
Browse files

PM / sleep: Enhance test_suspend option with repeat capability 



Enhanced test_suspend boot paramter to repeat tests multiple times,
by adding optional repeat count. The new boot param syntax:
test_suspend="mem|freeze|standby[,N]"

Signed-off-by: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent bc7115b1

kernel/power/suspend_test.c

+22 −3
Original line number Diff line number Diff line
@@ -22,6 +22,8 @@ 
#define TEST_SUSPEND_SECONDS	10



static unsigned long suspend_test_start_time;

static u32 test_repeat_count_max = 1;

static u32 test_repeat_count_current;



void suspend_test_start(void)

{
@@ -74,6 +76,7 @@ static void __init test_wakealarm(struct rtc_device *rtc, suspend_state_t state) 
	int			status;



	/* this may fail if the RTC hasn't been initialized */

repeat:

	status = rtc_read_time(rtc, &alm.time);

	if (status < 0) {

		printk(err_readtime, dev_name(&rtc->dev), status);
@@ -111,6 +114,10 @@ static void __init test_wakealarm(struct rtc_device *rtc, suspend_state_t state) 
	if (status < 0)

		printk(err_suspend, status);



	test_repeat_count_current++;

	if (test_repeat_count_current < test_repeat_count_max)

		goto repeat;



	/* Some platforms can't detect that the alarm triggered the

	 * wakeup, or (accordingly) disable it after it afterwards.

	 * It's supposed to give oneshot behavior; cope.
@@ -144,16 +151,28 @@ static char warn_bad_state[] __initdata = 
static int __init setup_test_suspend(char *value)

{

	int i;

	char *repeat;

	char *suspend_type;



	/* "=mem" ==> "mem" */

	/* example : "=mem[,N]" ==> "mem[,N]" */

	value++;

	suspend_type = strsep(&value, ",");

	if (!suspend_type)

		return 0;



	repeat = strsep(&value, ",");

	if (repeat) {

		if (kstrtou32(repeat, 0, &test_repeat_count_max))

			return 0;

	}



	for (i = 0; pm_labels[i]; i++)

		if (!strcmp(pm_labels[i], value)) {

		if (!strcmp(pm_labels[i], suspend_type)) {

			test_state_label = pm_labels[i];

			return 0;

		}



	printk(warn_bad_state, value);

	printk(warn_bad_state, suspend_type);

	return 0;

}

__setup("test_suspend", setup_test_suspend);