Proposed SRU: https://lists.ubuntu.com/archives/kernel-team/2019-October/104157.html Test build to be prepared in https://launchpad.net/~vicamo/+archive/ubuntu/ppa-1844680
** Description changed: + [SRU Justification] + + [Impact] + The Thunderbolt controller is integrated into the Ice Lake CPU itself + and requires special flows to power it on and off using force power bit + in NHI VSEC registers. Currently this is not supported until v5.4-rc1. + + [Fix] + Commit 3cdb9446a117 "thunderbolt: Add support for Intel Ice Lake" along + with all the prerequisites should be backported to enable thunderbolt. + + [Test Case] + Tested on two Dell XPS platforms with ICL-U and thunderbolt support. + + [Regression Risk] + Medium. While v5.4 is still under development and there is already an + known issue about suspend/resume on ICL platforms with thunderbolt + enabled, it is definitely going to have follow-ups for this backport, as + well as more regression tests on previous systems before landed. + + ========= original bug description ========= + v5.4 has commits to fix Thunderbolt support for ICL ce19f91eae43e39 thunderbolt: Correct path indices for PCIe tunnel f437c24bf694b02 thunderbolt: Move NVM upgrade support flag to struct icm 943795219d3cb9f thunderbolt: Use 32-bit writes when writing ring producer/consumer d94dcbb10183f3b thunderbolt: Do not fail adding switch if some port is not implemented 58f414fa435cf72 thunderbolt: Hide switch attributes that are not set 3f415e5ee18b009 thunderbolt: Expose active parts of NVM even if upgrade is not supported 3cdb9446a117d5d thunderbolt: Add support for Intel Ice Lake dfda204198848b4 ACPI / property: Add two new Thunderbolt property GUIDs to the list -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1844680 Title: Thunderbolt support for ICL To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1844680/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
