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PCI: Add ACS quirk for Pericom PI7C9X2G304 switches [12d8:b304]

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According to the existing quirk the Pericom E5 errata for ACS P2P applies
to PI7C9X2G404, PI7C9X2G304 and PI7C9X2G303 models.

The Arduino Ventuno Q board has a PI7C9X2G304 switch (verified from chip
markings) with a product-id of 0xb304. Add 12d8:b304 to the existing list
of quirks for this erratum.

Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20260820082041.13470-1-johannes.goede@oss.qualcomm.com
This commit is contained in:
Hans de Goede 2026-08-20 10:20:41 +02:00 committed by Bjorn Helgaas
parent cee9395acd
commit 7bff67d3d6
1 changed files with 4 additions and 0 deletions
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4
drivers/pci/quirks.c
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@ -6263,6 +6263,10 @@ DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_PERICOM, 0x2303,
pci_fixup_pericom_acs_store_forward);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_PERICOM, 0x2303,
pci_fixup_pericom_acs_store_forward);
DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_PERICOM, 0xb304,
pci_fixup_pericom_acs_store_forward);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_PERICOM, 0xb304,
pci_fixup_pericom_acs_store_forward);
DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_PERICOM, 0xb404,
pci_fixup_pericom_acs_store_forward);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_PERICOM, 0xb404,