On Tue, Apr 19, 2016 at 06:29:18AM +0000, Yong, Jonathan wrote: > Simplified Precision Time Measurement driver, activates PTM feature > if a PCIe PTM requester (as per PCI Express 3.1 Base Specification > section 7.32)is found, but not before checking if the rest of the > PCI hierarchy can support it. > > The driver does not take part in facilitating PTM conversations, > neither does it provide any useful services, it is only responsible > for setting up the required configuration space bits. > > As of writing, there aren't any PTM capable devices on the market > yet, but it is supported by the Intel Apollo Lake platform. Can you also add lspci support for the PTM capability? That will help debugging. Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html