From: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Thomas Witt reported that 5e85eba6f50d ("PCI/ASPM: Refactor L1 PM
Substates Control Register programming") broke suspend/resume on a
Tuxedo Infinitybook S 14 v5, which seems to use a Clevo L140CU Mainboard.
See https://bugzilla.kernel.org/show_bug.cgi?id=216877
Since we haven't figured out a root cause, revert the relevant patches for
now.
Note that reverting "Save L1 PM Substates Capability for suspend/resume"
means machines will use more power after suspend/resume because the L1
Substates configuration is lost, but they should still work correctly.
Bjorn Helgaas (2):
Revert "PCI/ASPM: Save L1 PM Substates Capability for suspend/resume"
Revert "PCI/ASPM: Refactor L1 PM Substates Control Register
programming"
drivers/pci/pci.c | 7 ---
drivers/pci/pci.h | 4 --
drivers/pci/pcie/aspm.c | 109 ++++++++++++----------------------------
3 files changed, 33 insertions(+), 87 deletions(-)
--
2.25.1
