PCI: Disable MSI on RDC PCI to PCIe bridges

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[ Upstream commit ebc7086b39 ]

RDC PCI to PCIe bridges, present on Vortex86DX3 and Vortex86EX2 SoCs, do
not support MSIs. If enabled, interrupts generated by PCIe devices never
reach the processor.

I have contacted the manufacturer (DM&P) and they confirmed that PCI MSIs
need to be disabled for them.

Signed-off-by: Marcos Del Sol Vives <marcos@orca.pet>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20250705233209.721507-1-marcos@orca.pet
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Marcos Del Sol Vives 2025-07-06 01:32:08 +02:00 • committed by Greg Kroah-Hartman

parent ccffcbf8e0

commit c4b519a034

1 changed files with 1 additions and 0 deletions

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drivers/pci/quirks.c

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