[PATCH 1/2] dt-bindings: arm-smmu: Fix json-schema for Tegra

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The dt_binding_check currently issues the following warnings for the
Tegra186 and Tegra194 SMMUs ...

 arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dt.yaml: iommu@12000000:
  'nvidia,memory-controller' does not match any of the regexes: 'pinctrl-[0-9]+'
 	From schema: Documentation/devicetree/bindings/iommu/arm,smmu.yaml
  DTC     arch/arm64/boot/dts/nvidia/tegra186-p3509-0000+p3636-0001.dt.yaml
  CHECK   arch/arm64/boot/dts/nvidia/tegra186-p3509-0000+p3636-0001.dt.yaml

Add the missing 'nvidia,memory-controller' property to fix the above
warning.

Signed-off-by: Jon Hunter <jonathanh@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/iommu/arm,smmu.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
index f66a3effba73..5dce07b12cd7 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
@@ -155,6 +155,10 @@ properties:
   power-domains:
     maxItems: 1
 
+  nvidia,memory-controller:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: phandle of the memory controller node
+
 required:
   - compatible
   - reg
-- 
2.25.1




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