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PCI: Add ACS quirk for Qualcomm SA8775P

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[ Upstream commit 026f84d3fa62d215b11cbeb5a5d97df941e93b5c ]

The Qualcomm SA8775P root ports don't advertise an ACS capability, but they
do provide ACS-like features to disable peer transactions and validate bus
numbers in requests.

Thus, add an ACS quirk for the SA8775P.

Link: https://lore.kernel.org/linux-pci/20240906052228.1829485-1-quic_skananth@quicinc.com
Signed-off-by: Subramanian Ananthanarayanan <quic_skananth@quicinc.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Subramanian Ananthanarayanan 2024-09-06 10:52:27 +05:30 • committed by Ksawlii
parent 6d3b9607db
commit cdd8a96783
1 changed files with 2 additions and 0 deletions
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2
drivers/pci/quirks.c
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@ -4919,6 +4919,8 @@ static const struct pci_dev_acs_enabled {
/* QCOM QDF2xxx root ports */ /* QCOM QDF2xxx root ports */
{ PCI_VENDOR_ID_QCOM, 0x0400, pci_quirk_qcom_rp_acs }, { PCI_VENDOR_ID_QCOM, 0x0400, pci_quirk_qcom_rp_acs },
{ PCI_VENDOR_ID_QCOM, 0x0401, pci_quirk_qcom_rp_acs }, { PCI_VENDOR_ID_QCOM, 0x0401, pci_quirk_qcom_rp_acs },
/* QCOM SA8775P root port */
{ PCI_VENDOR_ID_QCOM, 0x0115, pci_quirk_qcom_rp_acs },
/* HXT SD4800 root ports. The ACS design is same as QCOM QDF2xxx */ /* HXT SD4800 root ports. The ACS design is same as QCOM QDF2xxx */
{ PCI_VENDOR_ID_HXT, 0x0401, pci_quirk_qcom_rp_acs }, { PCI_VENDOR_ID_HXT, 0x0401, pci_quirk_qcom_rp_acs },
/* Intel PCH root ports */ /* Intel PCH root ports */