Re: [PATCH v9 3/4] dt-bindings: arm-smmu: add binding for Tegra194 SMMU
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 > --- > .../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 ___ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
[PATCH v9 3/4] dt-bindings: arm-smmu: add binding for Tegra194 SMMU
Add binding for NVIDIA's Tegra194 SoC SMMU topology that is based on ARM MMU-500. Signed-off-by: Krishna Reddy --- .../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 - items: - const: arm,mmu-500 - const: arm,smmu-v2 @@ -138,6 +143,19 @@ required: additionalProperties: false +allOf: + - if: + properties: +compatible: + contains: +enum: + - nvidia,tegra194-smmu +then: + properties: +reg: + minItems: 2 + maxItems: 3 + examples: - |+ /* SMMU with stream matching or stream indexing */ -- 2.26.2 ___ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
