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dt-bindings: PCI: qcom: Allow 'dma-coherent' property

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Devices on some PCIe buses may be cache coherent and must be marked as
such in the devicetree to avoid data corruption.

This is specifically needed on recent Qualcomm platforms like SC8280XP.

Link: https://lore.kernel.org/r/20221205094530.12883-1-johan+linaro@kernel.org
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Johan Hovold
2022-12-05 10:45:30 +01:00
committed by Lorenzo Pieralisi
parent c4860af88d
commit 74eac50391
1 changed files with 2 additions and 0 deletions
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2
Documentation/devicetree/bindings/pci/qcom,pcie.yaml
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@@ -62,6 +62,8 @@ properties:
minItems: 3
maxItems: 13
dma-coherent: true
interconnects:
maxItems: 2