SUNIX serial card advertise L1 acceptable L0S exit latency to be < 2us, L1 < 32us, but the link capability shows they're unlimited. It fails the latency check and prohibits the ASPM L1 from being enabled. The L1 acceptable latency quirk fixes the issue. Signed-off-by: Chris Chiu <chris.chiu@xxxxxxxxxxxxx> --- drivers/pci/quirks.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 4944798e75b5..e1663e43846e 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5955,4 +5955,5 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56b0, aspm_l1_acceptable_latency DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56b1, aspm_l1_acceptable_latency); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56c0, aspm_l1_acceptable_latency); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56c1, aspm_l1_acceptable_latency); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SUNIX, PCI_DEVICE_ID_SUNIX_1999, aspm_l1_acceptable_latency); #endif -- 2.25.1
