cc3fa4e36 tests/intel/kms_dp_linktrain_fallback: add test for validating fallback
bc065b3f1 lib/igt_kms: Handle EINVAL error as well
12879745a lib/igt_kms: fix helper igt_get_dp_mst_connector_id
f21e16a6b lib/igt_kms: add function to reset link params
a1ec606b7 lib/igt_kms: allow set and reset value to be same
7c1db72ea lib/igt_kms: add DP link management helper functions