From: Bjorn Helgaas Date: Thu, 13 Nov 2025 00:36:24 +0000 (-0600) Subject: PCI/ASPM: Avoid L0s and L1 on PA Semi [1959:a002] Root Ports X-Git-Tag: v6.18-rc6~10^2~1 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=823576c894d73255d35c0d0dabbb6ffecf1f2667;p=thirdparty%2Flinux.git PCI/ASPM: Avoid L0s and L1 on PA Semi [1959:a002] Root Ports Christian reported that f3ac2ff14834 ("PCI/ASPM: Enable all ClockPM and ASPM states for devicetree platforms") broke booting on the A-EON AmigaOne X1000. Override the L0s and L1 Support advertised in Link Capabilities by the X1000 Root Ports ([1959:a002]) so we don't try to enable those states. Fixes: f3ac2ff14834 ("PCI/ASPM: Enable all ClockPM and ASPM states for devicetree platforms") Fixes: df5192d9bb0e ("PCI/ASPM: Enable only L0s and L1 for devicetree platforms") Reported-by: Christian Zigotzky Link: https://lore.kernel.org/r/a41d2ca1-fcd9-c416-b111-a958e92e94bf@xenosoft.de Signed-off-by: Bjorn Helgaas --- diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index b94264cd3833..90f6abdb77f4 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2524,6 +2524,7 @@ static void quirk_disable_aspm_l0s_l1(struct pci_dev *dev) */ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ASMEDIA, 0x1080, quirk_disable_aspm_l0s_l1); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_FREESCALE, 0x0451, quirk_disable_aspm_l0s_l1); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PASEMI, 0xa002, quirk_disable_aspm_l0s_l1); /* * Some Pericom PCIe-to-PCI bridges in reverse mode need the PCIe Retrain