Thread (59 messages) 59 messages, 5 authors, 2020-09-01
STALE2139d REVIEWED: 7 (7M)
Revisions (4)
  1. v10 [diff vs current]
  2. v11 [diff vs current]
  3. v12 [diff vs current]
  4. v12 current

[PATCH 10/19] dt-bindings: arm-smmu: Add compatible string for Adreno GPU SMMU

From: Rob Clark <hidden>
Date: 2020-08-14 02:41:47
Also in: dri-devel, linux-arm-msm, linux-devicetree, linux-iommu, lkml
Subsystem: arm smmu drivers, iommu subsystem, open firmware and flattened device tree bindings, the rest · Maintainers: Will Deacon, Joerg Roedel, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

From: Jordan Crouse <redacted>

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 <redacted>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Clark <redacted>
---
 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..5ec5d0d691f6 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
@@ -40,6 +40,10 @@ properties:
               - qcom,sm8150-smmu-500
               - qcom,sm8250-smmu-500
           - const: arm,mmu-500
+      - description: Qcom Adreno GPUs implementing "arm,smmu-v2"
+        items:
+          - const: qcom,adreno-smmu
+          - const: qcom,smmu-v2
       - description: Marvell SoCs implementing "arm,mmu-500"
         items:
           - const: marvell,ap806-smmu-500
-- 
2.26.2


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