selftest: cpufreq: Add suspend/resume/hibernate support
This patch adds support to test basic suspend/resume and hibernation to
the cpufreq selftests.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
diff --git a/tools/testing/selftests/cpufreq/cpufreq.sh b/tools/testing/selftests/cpufreq/cpufreq.sh
index 2b8b05a..1ed3832 100755
--- a/tools/testing/selftests/cpufreq/cpufreq.sh
+++ b/tools/testing/selftests/cpufreq/cpufreq.sh
@@ -199,3 +199,43 @@
# Test all governors
shuffle_governors_for_all_cpus 1
}
+
+# Suspend/resume
+# $1: "suspend" or "hibernate", $2: loop count
+do_suspend()
+{
+ printf "** Test: Running ${FUNCNAME[0]}: Trying $1 for $2 loops **\n\n"
+
+ # Is the directory available
+ if [ ! -d $SYSFS/power/ -o ! -f $SYSFS/power/state ]; then
+ printf "$SYSFS/power/state not available\n"
+ return 1
+ fi
+
+ if [ $1 = "suspend" ]; then
+ filename="mem"
+ elif [ $1 = "hibernate" ]; then
+ filename="disk"
+ else
+ printf "$1 is not a valid option\n"
+ return 1
+ fi
+
+ if [ -n $filename ]; then
+ present=$(cat $SYSFS/power/state | grep $filename)
+
+ if [ -z "$present" ]; then
+ printf "Tried to $1 but $filename isn't present in $SYSFS/power/state\n"
+ return 1;
+ fi
+
+ for i in `seq 1 $2`; do
+ printf "Starting $1\n"
+ echo $filename > $SYSFS/power/state
+ printf "Came out of $1\n"
+
+ printf "Do basic tests after finishing $1 to verify cpufreq state\n\n"
+ cpufreq_basic_tests
+ done
+ fi
+}