Thread (14 messages) read the whole thread 14 messages, 4 authors, 2020-09-04
STALE2155d REVIEWED: 7 (7M)

Revision v1 of 4 in this series; 1 review trailer (1 from subsystem maintainers).

Revisions (4)
  1. v1 current
  2. v1 [diff vs current]
  3. v16 [diff vs current]
  4. v17 [diff vs current]

[PATCH 10/20] dt-bindings: arm-smmu: Add compatible string for Adreno GPU SMMU

From: Rob Clark <hidden>
Date: 2020-08-17 22:03:26
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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