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> > @@ -507,6 +510,56 @@ igt_main > test_ultra_joiner(&data, false, false, false); > } > > + igt_describe("Verify modeset switch between joiner and ultra joiner"); > + igt_subtest_with_dynamic("switch-modeset-big-joiner-ultra-joiner") { > + igt_require_f(data.n_pipes > 1, > + "Minimum 2 pipes required\n"); We need four pipes to support ultra joiner. So we can skip the test if we don't have 4 pipes. Also, I would suggest to add the checks to verify if we're able to support both big and ultra joiner before the start of the dynamic subtests. If either one is not supported, then just skip the subtest from here itself rather than starting the dynamic subtest and skipping from there. Thanks, Karthik.B.S > + > + igt_dynamic_f("ultra_joiner_to_big_joiner") { > + if (data.ultra_joiner_output_count > 0) { > + test_ultra_joiner(&data, false, false, false); > + } else { > + igt_require_f(force_joiner_supported && > + data.non_ultra_joiner_output_count > 0, > + "Force joiner not supported on this platform or none of the connected output supports it\n"); > + enable_force_joiner_on_all_non_ultra_joiner_outputs(&data); > + test_ultra_joiner(&data, false, false, true); > + } > + if (data.big_joiner_output_count > 0) { > + test_single_joiner(&data, data.big_joiner_output_count, false); > + } else { > + igt_require_f(force_joiner_supported && > + data.non_big_joiner_output_count > 0, > + "Force joiner not supported on this platform or none of the connected outputs support it\n"); > + enable_force_joiner_on_all_non_big_joiner_outputs(&data); > + test_single_joiner(&data, data.non_big_joiner_output_count, true); > + } > + igt_reset_connectors(); > + } > + > + igt_dynamic_f("big_joiner_to_ultra_joiner") { > + if (data.big_joiner_output_count > 0) { > + test_single_joiner(&data, data.big_joiner_output_count, false); > + } else { > + igt_require_f(force_joiner_supported && > + data.non_big_joiner_output_count > 0, > + "Force joiner not supported on this platform or none of the connected output supports it\n"); > + enable_force_joiner_on_all_non_big_joiner_outputs(&data); > + test_single_joiner(&data, data.non_big_joiner_output_count, true); > + } > + if (data.ultra_joiner_output_count > 0) { > + test_ultra_joiner(&data, false, false, false); > + } else { > + igt_require_f(force_joiner_supported && > + data.non_ultra_joiner_output_count > 0, > + "Force joiner not supported on this platform or none of the connected output supports it\n"); > + enable_force_joiner_on_all_non_ultra_joiner_outputs(&data); > + test_ultra_joiner(&data, false, false, true); > + } > + igt_reset_connectors(); > + } > + } > + > igt_describe("Verify if the modeset on the adjoining pipe is rejected " > "when the pipe is active with a big joiner modeset"); > igt_subtest_with_dynamic("invalid-modeset-big-joiner") {