On Fri, Feb 21, 2025 at 05:51:59PM +0200, Dmitry Baryshkov wrote:
> Qualcomm SA8775P supports cache coherency on the PCIe EP controller.
> Allow 'dma-coherent' property to be used for this device. This fixes
> a part of the following error (the second part is fixed in the next
> commit):
>
> pcie-ep@1c10000: Unevaluated properties are not allowed ('dma-coherent', 'iommus' were unexpected)
>
> Fixes: 4b220c6fa9f3 ("arm64: dts: qcom: sa8775p: Mark PCIe EP controller as cache coherent")
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
- Mani
> ---
> Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> index 1226ee5d08d1ae909b07b0d78014618c4c74e9a8..0c2ca4cfa3b190b3fb204f0d7142370734fb3534 100644
> --- a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> @@ -91,6 +91,8 @@ properties:
> - const: pcie-mem
> - const: cpu-pcie
>
> + dma-coherent: true
> +
> resets:
> maxItems: 1
>
>
> --
> 2.39.5
>
--
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