On Wed, Nov 07, 2018 at 02:17:14PM +0300, Mika Westerberg wrote: > During NVM upgrade process the host router is hot-removed for a short > while. During this time it is possible that the root port is moved into > D3cold which would be fine if the root port could trigger PME on itself. > However, many systems actually do not implement it so what happens is > that the root port goes into D3cold and never wakes up unless userspace > does PCI config space access, such as running 'lscpi'. > > For this reason we explicitly prevent the root port from runtime > suspending during NVM upgrade. > > Signed-off-by: Mika Westerberg <[email protected]>
Applied to thunderbolt.git/fixes.
