On 29/08/2019 23:47, Krishna Reddy wrote:
Add binding doc for Nvidia's smmu-v2 implementation.

Signed-off-by: Krishna Reddy <vdu...@nvidia.com>
---
  Documentation/devicetree/bindings/iommu/arm,smmu.txt | 1 +
  1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.txt 
b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
index 3133f3b..0de3759 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.txt
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
@@ -17,6 +17,7 @@ conditions.
                          "arm,mmu-401"
                          "arm,mmu-500"
                          "cavium,smmu-v2"
+                        "nidia,smmu-v2"
                          "qcom,smmu-v2"

I agree with Mikko that the compatible must be at least SoC-specific, but potentially even instance-specific (e.g. "nvidia,tegra194-gpu-smmu") depending on how many of these parallel-SMMU configurations might be hiding in current and future SoCs.

Robin.

depending on the particular implementation and/or the

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