[PATCH v12 06/13] dt-bindings: arm-smmu: Add compatible string for Adreno GPU SMMU

Jordan Crouse
2020-08-10T22:27:32Z

Every Qcom Adreno GPU has an embedded SMMU for its own use. These
devices depend on unique features such as split pagetables,
different stall/halt requirements and other settings. Identify them
with a compatible string so that they can be identified in the
arm-smmu implementation specific code.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
---

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 503160a7b9a0..70996348c1d8 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
@@ -49,6 +49,10 @@ properties:
- enum:
- nvidia,tegra194-smmu
- const: nvidia,smmu-500
+ - description: Qcom Adreno GPUs implementing "arm,smmu-v2"
+ items:
+ - const: qcom,adreno-smmu
+ - const: qcom,smmu-v2
- items:
- const: arm,mmu-500
- const: arm,smmu-v2
--
2.25.1