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From: Krishna Reddy <vdumpa@nvidia.com>
To: <joro@8bytes.org>, <will@kernel.org>, <robin.murphy@arm.com>,
 <robh+dt@kernel.org>, <treding@nvidia.com>, <jonathanh@nvidia.com>
Subject: [PATCH v10 4/5] dt-bindings: arm-smmu: add binding for Tegra194 SMMU
Date: Tue, 7 Jul 2020 22:00:16 -0700
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Add binding for NVIDIA's Tegra194 SoC SMMU.

Signed-off-by: Krishna Reddy <vdumpa@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 d7ceb4c34423..ac1f526c3424 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 program two ARM MMU-500s identically
+        items:
+          - enum:
+              - nvidia,tegra194-smmu
+          - const: nvidia,smmu-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: 2
+
 examples:
   - |+
     /* SMMU with stream matching or stream indexing */
-- 
2.26.2

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