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| author | Bjorn Helgaas <bhelgaas@google.com> | 2020-07-17 17:21:28 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2020-07-22 10:31:52 -0500 |
| commit | d08c30d7a0d1826f771f16cde32bd86e48401791 (patch) | |
| tree | b03cb45bad1a3a01409851e15236807c4604b45f /drivers/pci/quirks.c | |
| parent | 62ca18a0896f5590806e6aee7bce39f130a2d9d5 (diff) | |
| download | linux-d08c30d7a0d1826f771f16cde32bd86e48401791.tar.bz2 | |
Revert "PCI/PM: Assume ports without DLL Link Active train links in 100 ms"
This reverts commit ec411e02b7a2e785a4ed9ed283207cd14f48699d.
Patrick reported that this commit broke hybrid graphics on a ThinkPad X1
Extreme 2nd with Intel UHD Graphics 630 and NVIDIA GeForce GTX 1650 Mobile:
nouveau 0000:01:00.0: fifo: PBDMA0: 01000000 [] ch 0 [00ff992000 DRM] subc 0 mthd 0008 data 00000000
Karol reported that this commit broke Nouveau firmware loading on a Lenovo
P1G2 with Intel UHD Graphics 630 and NVIDIA TU117GLM [Quadro T1000 Mobile]:
nouveau 0000:01:00.0: acr: AHESASC binary failed
In both cases, reverting ec411e02b7a2 solved the problem. Unfortunately,
this revert will reintroduce the "Thunderbolt bridges take long time to
resume from D3cold" problem:
https://bugzilla.kernel.org/show_bug.cgi?id=206837
Link: https://lore.kernel.org/r/CAErSpo5sTeK_my1dEhWp7aHD0xOp87+oHYWkTjbL7ALgDbXo-Q@mail.gmail.com
Link: https://lore.kernel.org/r/CACO55tsAEa5GXw5oeJPG=mcn+qxNvspXreJYWDJGZBy5v82JDA@mail.gmail.com
Link: https://bugzilla.kernel.org/show_bug.cgi?id=208597
Reported-by: Patrick Volkerding <volkerdi@gmail.com>
Reported-by: Karol Herbst <kherbst@redhat.com>
Fixes: ec411e02b7a2 ("PCI/PM: Assume ports without DLL Link Active train links in 100 ms")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/quirks.c')
0 files changed, 0 insertions, 0 deletions