In order to increase tests performance limit suspend-resume's execution
to only first and last CRTC.

v2->v3
- add missing S-O-B

Signed-off-by: Michał Grzelak <michal.grzelak@intel.com>
---
 tests/kms_async_flips.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tests/kms_async_flips.c b/tests/kms_async_flips.c
index 03348d958d..5c143e71df 100644
--- a/tests/kms_async_flips.c
+++ b/tests/kms_async_flips.c
@@ -873,18 +873,23 @@ static void run_test(data_t *data, void (*test)(data_t *))
 {
 	igt_crtc_t *crtc;
 	igt_display_t *display = &data->display;
+	int idx;
 
 	if (data->atomic_path)
 		require_atomic_async_cap(data);
 
 	for_each_connected_output(display, data->output) {
 		for_each_crtc(&data->display, crtc) {
-			if(!igt_crtc_connector_valid(crtc, data->output))
+			if (!igt_crtc_connector_valid(crtc, data->output))
 				continue;
 
 			data->crtc = crtc;
 			igt_display_reset(display);
 
+			idx = display->crtcs->crtc_index;

+			if (data->suspend_resume && (idx != 0 || idx != display->n_crtcs - 1))

+				continue;
+
 			igt_output_set_crtc(data->output,
 					    crtc);
 			if (!intel_pipe_output_combo_valid(display))