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dt-bindings: gk20a: Document iommus property
GK20A can optionally make use of an IOMMU. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
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@ -24,6 +24,9 @@ Required properties:
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- reset-names: Must include the following entries:
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- gpu
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Optional properties:
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- iommus: A reference to the IOMMU. See ../iommu/iommu.txt for details.
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Example:
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gpu@0,57000000 {
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@ -39,5 +42,6 @@ Example:
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clock-names = "gpu", "pwr";
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resets = <&tegra_car 184>;
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reset-names = "gpu";
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iommus = <&mc TEGRA_SWGROUP_GPU>;
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status = "disabled";
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};
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