[PATCH i-g-t] tests/audio: Add suspend and hibernate tests for HDMI signal integrity

[Paul Kocialkowski <paul.kocialkowski@linux.intel.com>]

This introduces tests for HDMI signal integrity after suspend and
hibernate. They simply test that signal integrity is ensured before
and after suspend or hibernate.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com>
---
 tests/audio.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/tests/audio.c b/tests/audio.c
index 7fb91c97..560876a3 100644
--- a/tests/audio.c
+++ b/tests/audio.c
@@ -167,8 +167,27 @@ static void test_integrity(const char *device_name)
 	free(data.alsa);
 }
 
+static void test_suspend_resume_integrity(const char *device_name,
+					  enum igt_suspend_state state,
+					  enum igt_suspend_test test)
+{
+	test_integrity(device_name);
+
+	igt_system_suspend_autoresume(state, test);
+
+	test_integrity(device_name);
+}
+
 igt_main
 {
 	igt_subtest("hdmi-integrity")
 		test_integrity("HDMI");
+
+	igt_subtest("hdmi-integrity-after-suspend")
+		test_suspend_resume_integrity("HDMI", SUSPEND_STATE_MEM,
+					      SUSPEND_TEST_NONE);
+
+	igt_subtest("hdmi-integrity-after-hibernate")
+		test_suspend_resume_integrity("HDMI", SUSPEND_STATE_DISK,
+					      SUSPEND_TEST_DEVICES);
 }
-- 
2.14.0

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