Messages in this thread | | | From | Bjorn Helgaas <> | Subject | [PATCH 0/2] Revert ASPM L1 Substates updates | Date | Fri, 3 Feb 2023 16:48:18 -0600 |
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From: Bjorn Helgaas <bhelgaas@google.com>
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
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