diff options
| author | Johan Hovold <johan+linaro@kernel.org> | 2022-12-05 10:45:30 +0100 |
|---|---|---|
| committer | Lorenzo Pieralisi <lpieralisi@kernel.org> | 2022-12-06 13:18:29 +0100 |
| commit | 74eac50391ce42c5d0038d6f0e580576e53aec4e (patch) | |
| tree | 1bb60216864ad757d15b4a7d615f62f52ab6624e /Documentation/devicetree/bindings/pci | |
| parent | PCI: qcom: Add basic interconnect support (diff) | |
| download | linux-74eac50391ce42c5d0038d6f0e580576e53aec4e.tar.xz linux-74eac50391ce42c5d0038d6f0e580576e53aec4e.zip | |
dt-bindings: PCI: qcom: Allow 'dma-coherent' property
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>
Diffstat (limited to 'Documentation/devicetree/bindings/pci')
| -rw-r--r-- | Documentation/devicetree/bindings/pci/qcom,pcie.yaml | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml index 2f851c804bb0..a5859bb3dc28 100644 --- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml @@ -62,6 +62,8 @@ properties: minItems: 3 maxItems: 13 + dma-coherent: true + interconnects: maxItems: 2 |