diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2024-03-05 15:15:25 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2024-03-12 12:09:11 -0500 |
| commit | 64dbb2d707444f691539fb12aacf81797786c10b (patch) | |
| tree | 1c8db6a59e1c466528413171717814af94fb862c /block/disk-events.c | |
| parent | c198fafa0125e97728d16411aa653602900ab0bc (diff) | |
PCI/ASPM: Disable L1 before configuring L1 Substates
Per PCIe r6.1, sec 5.5.4, L1 must be disabled while setting ASPM L1 PM
Substates enable bits. Previously this was enforced by clearing
PCI_EXP_LNKCTL_ASPMC before calling pci_restore_aspm_l1ss_state().
Move the L1 (and L0s, although that doesn't seem required) disable into
pci_restore_aspm_l1ss_state() itself so it's closer to the code that
depends on it.
Link: https://lore.kernel.org/r/20240223213733.GA115410@bhelgaas
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'block/disk-events.c')
0 files changed, 0 insertions, 0 deletions