On Sat, May 11, 2024 at 07:38:32AM +0300, Mika Westerberg wrote: > They are not integrated Thunderbolt PCIe root ports. For the clarity, Intel integrated Thunderbolt 3 controller first in Ice Lake, then Thunderbolt 4 controller in Tiger Lake and forward (Alder Lake, Raptor Lake, Meteor Lake). Anything else, including Comet Lake and the like are using discrete controllers such as Alpine Ridge, Titan Ridge (both Thunderbolt 3) and Maple Ridge (Thunderbolt 4), and Barlow Ridge (Thunderbolt 5) where the controller is either soldered on the motherboard or connected to a PCIe slot. Sorry for not opening this up earlier. There are some combinations where the integrated controller is disabled and a discrete one is being used but again that should match the second "rule".
