* [PATCH v1] PCI: Add ACS quirk for Qualcomm SA8775P
@ 2024-09-06 5:22 Subramanian Ananthanarayanan
2024-09-06 6:45 ` Krzysztof Wilczyński
0 siblings, 1 reply; 2+ messages in thread
From: Subramanian Ananthanarayanan @ 2024-09-06 5:22 UTC (permalink / raw)
To: bhelgaas
Cc: quic_krichai, quic_vbadigan, linux-arm-msm,
Subramanian Ananthanarayanan, open list:PCI SUBSYSTEM, open list
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.
Add an ACS quirk for the SA8775P.
Signed-off-by: Subramanian Ananthanarayanan <quic_skananth@quicinc.com>
---
drivers/pci/quirks.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 507006ff13dd..bc739f04d4b1 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5087,6 +5087,8 @@ static const struct pci_dev_acs_enabled {
/* QCOM QDF2xxx root ports */
{ PCI_VENDOR_ID_QCOM, 0x0400, 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 */
{ PCI_VENDOR_ID_HXT, 0x0401, pci_quirk_qcom_rp_acs },
/* Intel PCH root ports */
--
2.34.1
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