[PATCH v9 3/4] dt-bindings: arm-smmu: add binding for Tegra194 SMMU
Jon Hunter
jonathanh at nvidia.com
Wed Jul 1 04:19:54 EDT 2020
On 01/07/2020 00:57, Krishna Reddy wrote:
> Add binding for NVIDIA's Tegra194 SoC SMMU topology that is based
> on ARM MMU-500.
>
> Signed-off-by: Krishna Reddy <vdumpa at nvidia.com>
> ---
> .../devicetree/bindings/iommu/arm,smmu.yaml | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
> index d7ceb4c34423b..662c46e16f07d 100644
> --- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
> +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
> @@ -38,6 +38,11 @@ properties:
> - qcom,sc7180-smmu-500
> - qcom,sdm845-smmu-500
> - const: arm,mmu-500
> + - description: NVIDIA SoCs that use more than one "arm,mmu-500"
> + items:
> + - enum:
> + - nvidia,tegra194-smmu
> + - const: arm,mmu-500
We should also address Robin's comments here. I don't think that we ever
want to fail back to just the regular 'arm,mmu-500' and should be should
probably just drop this part.
Jon
--
nvpublic
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