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[v11,06/12] dt-bindings: arm-smmu: Add compatible string for Adreno GPU SMMU

Message ID 20200803193547.305660-7-jcrouse@codeaurora.org (mailing list archive)
State Superseded
Headers show
Series iommu/arm-smmu: Add Adreno SMMU specific implementation | expand

Commit Message

Jordan Crouse Aug. 3, 2020, 7:35 p.m. UTC 
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(+)
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Patch

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