PCIe probe failure on AmLogic A311D after 6.18-rc1

[Bjorn Helgaas]

On Wed, Oct 29, 2025 at 06:50:46PM +0800, Linnaea Lavia wrote:
> On 10/29/2025 6:16 AM, Bjorn Helgaas wrote:

> > diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> > index 214ed060ca1b..9cd12924b5cb 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)
> >    * disable both L0s and L1 for now to be safe.
> >    */
> >   DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ASMEDIA, 0x1080, quirk_disable_aspm_l0s_l1);
> > +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SYNOPSYS, 0xabcd, quirk_disable_aspm_l0s_l1);
> >   /*
> >    * Some Pericom PCIe-to-PCI bridges in reverse mode need the PCIe Retrain
> 
> I have applied the patch on 6.18-rc3 but it's still trying to enable ASPM for some reasons.

Sorry, my fault, I should have made that fixup run earlier, so the
patch should be this instead:

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 214ed060ca1b..4fc04015ca0c 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)
  * disable both L0s and L1 for now to be safe.
  */
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ASMEDIA, 0x1080, quirk_disable_aspm_l0s_l1);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SYNOPSYS, 0xabcd, quirk_disable_aspm_l0s_l1);