linux/drivers/pci
Bjorn Helgaas ff209ecc37 Revert "PCI/ASPM: Refactor L1 PM Substates Control Register programming"
This reverts commit 5e85eba6f5.

Thomas Witt reported that 5e85eba6f5 ("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.

The main symptom is:

  iwlwifi 0000:02:00.0: Unable to change power state from D3hot to D0, device inaccessible
  nvme 0000:03:00.0: Unable to change power state from D3hot to D0, device inaccessible

and the machine is only partially usable after resume.  It can't run dmesg
and can't do a clean reboot.  This happens on every suspend/resume cycle.

Revert 5e85eba6f5 until we can figure out the root cause.

Fixes: 5e85eba6f5 ("PCI/ASPM: Refactor L1 PM Substates Control Register programming")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216877
Reported-by: Thomas Witt <kernel@witt.link>
Tested-by: Thomas Witt <kernel@witt.link>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org	# v6.1+
Cc: Vidya Sagar <vidyas@nvidia.com>
2023-02-10 15:30:24 -06:00
..
controller phy-for-6.2 2022-12-19 08:40:58 -06:00
endpoint Merge branch 'remotes/lorenzo/pci/misc' 2022-12-10 10:36:40 -06:00
hotplug PCI: pciehp: Enable Command Completed Interrupt only if supported 2022-12-07 08:27:20 -06:00
msi PCI/MSI: Provide pci_ims_alloc/free_irq() 2022-12-05 22:22:35 +01:00
pcie Revert "PCI/ASPM: Refactor L1 PM Substates Control Register programming" 2023-02-10 15:30:24 -06:00
switch PCI: switchtec: Prefer ida_alloc()/free() over ida_simple_get()/remove() 2022-06-09 12:28:21 -05:00
access.c PCI: Access Link 2 registers only for devices with Links 2022-11-04 10:38:11 -05:00
ats.c PCI: Enable PASID only when ACS RR & UF enabled on upstream path 2022-11-03 15:47:47 +01:00
bus.c PCI: Skip allocate_resource() if too little space available 2022-12-10 10:31:47 -06:00
doe.c PCI/DOE: Fix maximum data object length miscalculation 2022-11-16 14:26:46 -06:00
ecam.c
host-bridge.c
iov.c
irq.c PCI: Check for alloc failure in pci_request_irq() 2022-11-21 16:55:18 -06:00
Kconfig genirq: Get rid of GENERIC_MSI_IRQ_DOMAIN 2022-11-17 15:15:20 +01:00
Makefile PCI/DOE: Add DOE mailbox support functions 2022-07-19 15:38:04 -07:00
mmap.c PCI: Remove pci_mmap_page_range() wrapper 2022-07-29 12:08:44 -05:00
of.c IOMMU Updates for Linux v5.19 2022-05-31 09:56:54 -07:00
p2pdma.c for-6.2/block-2022-12-08 2022-12-13 10:43:59 -08:00
pci-acpi.c PCI/ACPI: Use METHOD_NAME__UID instead of plain string 2022-11-07 15:22:52 -06:00
pci-bridge-emul.c PCI: pci-bridge-emul: Set position of PCI capabilities to real HW value 2022-08-25 12:07:56 +02:00
pci-bridge-emul.h PCI: pci-bridge-emul: Set position of PCI capabilities to real HW value 2022-08-25 12:07:56 +02:00
pci-driver.c PCI/PM: Remove unused 'state' parameter to pci_legacy_suspend_late() 2022-10-26 11:26:11 -05:00
pci-label.c
pci-mid.c
pci-pf-stub.c
pci-stub.c PCI: pci_stub: Set driver_managed_dma 2022-04-28 15:32:20 +02:00
pci-sysfs.c pci-v6.2-changes 2022-12-14 09:54:10 -08:00
pci.c Revert "PCI/ASPM: Save L1 PM Substates Capability for suspend/resume" 2023-02-10 15:29:53 -06:00
pci.h Revert "PCI/ASPM: Save L1 PM Substates Capability for suspend/resume" 2023-02-10 15:29:53 -06:00
probe.c pci-v6.2-changes 2022-12-14 09:54:10 -08:00
proc.c PCI: Remove pci_mmap_page_range() wrapper 2022-07-29 12:08:44 -05:00
quirks.c PCI/DPC: Quirk PIO log size for certain Intel Root Ports 2022-09-27 18:13:18 -05:00
remove.c PCI: Assign PCI domain IDs by ida_alloc() 2022-11-08 11:14:18 -06:00
rom.c
search.c
setup-bus.c Revert "PCI: Distribute available resources for root buses, too" 2022-10-14 14:27:58 -05:00
setup-irq.c
setup-res.c PCI: Sanitise firmware BAR assignments behind a PCI-PCI bridge 2022-09-21 17:52:47 -05:00
slot.c
syscall.c
vc.c
vgaarb.c
vpd.c
xen-pcifront.c xen/pcifront: move xenstore config scanning into sub-function 2022-10-07 07:36:44 +02:00