[PATCH i-g-t] tests/intel/kms_cdclk: Skip non-4K outputs instead of skipping the test

[Swati Sharma <swati2.sharma@intel.com>]

The mode-transition-all-outputs subtest currently skips the entire
test as soon as any single connected output lacks a >= 4K mode. On
typical setups (e.g. an eDP panel limited to 2880x1800 alongside
multiple 4K external displays), this prevents the test from running
even though enough 4K-capable outputs are available to exercise the
CDCLK transition.

Replace the igt_require_f() check with a per-output skip: outputs
without a >= 4K mode are simply omitted from the valid_outputs list
and the test continues with the remaining ones. The existing
igt_skip_on_f(count < 2) guard still ensures we only run when at
least two valid outputs are present.

Co-developed-by: Claude Opus 4.6
Signed-off-by: Swati Sharma <swati2.sharma@intel.com>
---
 tests/intel/kms_cdclk.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tests/intel/kms_cdclk.c b/tests/intel/kms_cdclk.c
index 48bd7276f..070fba400 100644
--- a/tests/intel/kms_cdclk.c
+++ b/tests/intel/kms_cdclk.c
@@ -271,8 +271,11 @@ static void test_mode_transition_on_all_outputs(data_t *data)
 
 	for_each_connected_output(display, output) {
 		mode_highres[count] = *igt_output_get_highres_mode(output);
-		igt_require_f(is_4k(mode_highres[count]), "Mode >= 4K not found on output %s.\n",
-			      igt_output_name(output));
+		if (!is_4k(mode_highres[count])) {
+			igt_info("Mode >= 4K not found on output %s; skipping\n",
+				 igt_output_name(output));
+			continue;
+		}
 
 		mode_lowres[count] = *get_lowres_mode(output);
 
-- 
2.25.1