pcie pcie-ltssm LTSSM overview References Videos PCIE Protocol - LTSSM Detailed discussion Debugging PCIe Interface up to 32 Gbps (Gen5 Data Rate) | Prodigy Technovations Webinar Links PCIe Deep Dive, Part 4: LTSSM drivers/pci/controller/pcie-mediatek-gen3.c Specification 4.2.5 Link Training and Status State Machine (LTSSM) Descriptions