[PATCH i-g-t 3/4] tests/kms_display_modes: Skip test if joiner display is connected

[Jeevan B <jeevan.b@intel.com>]

High-resolution displays that support joiner modes can cause extended mode
tests to fail. This commit introduces a check to skip these tests if a
joiner mode display is connected, ensuring the test suite runs smoothly
without unnecessary failures.

v2: Add output name in skip message.
v3: Update logic.

Signed-off-by: Jeevan B <jeevan.b@intel.com>
Reviewed-by: Swati Sharma <swati2.sharma@intel.com>
---
 tests/kms_display_modes.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tests/kms_display_modes.c b/tests/kms_display_modes.c
index f1d8ab03d..e41c60cc0 100644
--- a/tests/kms_display_modes.c
+++ b/tests/kms_display_modes.c
@@ -232,6 +232,12 @@ static void run_extendedmode_test(data_t *data) {
 
 	for_each_pipe(display, pipe1) {
 		for_each_valid_output_on_pipe(display, pipe1, output1) {
+
+			if (is_joiner_mode(data->drm_fd, output1)) {
+				igt_info("Skipping joiner output %s", output1->name);
+				continue;
+			}
+
 			for_each_pipe(display, pipe2) {
 				if (pipe1 == pipe2)
 					continue;
@@ -318,6 +324,10 @@ igt_main
 		igt_display_require_output(&data.display);
 
 		for_each_connected_output(&data.display, output) {
+			if (is_joiner_mode(data.drm_fd, output)) {
+				igt_info("Skipping joiner output %s", output->name);
+				continue;
+			}
 			data.mst_output[count++] = output;
 			if (output_is_dp_mst(&data, output, dp_mst_outputs))
 				dp_mst_outputs++;
-- 
2.25.1