On Thu, Dec 19, 2024 at 03:14:52AM -0500, Hans Zhang wrote: > If the PCIe link never came up, the enumeration process > should not be run. The link could come up at a later point in time. Please refer to the implementation of: dw_pcie_host_init() in drivers/pci/controller/dwc/pcie-designware-host.c wherein we have the following: /* Ignore errors, the link may come up later */ dw_pcie_wait_for_link(pci); It seems to me that the logic behind ignoring the absence of the link within cdns_pcie_host_link_setup() instead of erroring out, is similar to that of dw_pcie_wait_for_link(). Regards, Siddharth.