[Intel-gfx] [PATCH i-g-t 2/4] lib: Skip suspend/hibernate tests if the system doesn't support them

[ville.syrjala at linux.intel.com]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Do a dry run with rtcwake first to determine if the system even supports
the intended suspend state. If not, skip the test.

Fixes a bunch of stuff on my BYT FFRD8 that doesn't support S3.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 lib/igt_aux.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/igt_aux.c b/lib/igt_aux.c
index 04ca25b..f3c76ae 100644
--- a/lib/igt_aux.c
+++ b/lib/igt_aux.c
@@ -357,6 +357,9 @@ void igt_system_suspend_autoresume(void)
 	 * seems to fare better. We need to investigate what's going on. */
 	igt_skip_on_simulation();
 
+	/* skip if system doesn't support suspend-to-mem */
+	igt_skip_on(system("rtcwake -n -s 30 -m mem") != 0);
+
 	ret = system("rtcwake -s 30 -m mem");
 	igt_assert_f(ret == 0,
 		     "This failure means that something is wrong with the "
@@ -384,6 +387,9 @@ void igt_system_hibernate_autoresume(void)
 	 * seems to fare better. We need to investigate what's going on. */
 	igt_skip_on_simulation();
 
+	/* skip if system doesn't support suspend-to-disk */
+	igt_skip_on(system("rtcwake -n -s 90 -m disk") != 0);
+
 	/* The timeout might need to be adjusted if hibernation takes too long
 	 * or if we have to wait excessively long before resume
 	 */
-- 
2.4.9