Thread (11 messages) flat view 11 messages, 4 authors, 2020-11-06
STALE2118d REVIEWED: 7 (6M)

Revision v18 of 3 in this series; 2 review trailers (1 from subsystem maintainers).

Revisions (3)
  1. v18 [diff vs current]
  2. v18 current
  3. v19 [diff vs current]

[PATCH v18 3/4] dt-bindings: arm-smmu: Add compatible string for Adreno GPU SMMU

From: Jordan Crouse <hidden>
Date: 2020-11-02 17:14:52
Also in: 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

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>
Reviewed-by: Bjorn Andersson <redacted>
---

 Documentation/devicetree/bindings/iommu/arm,smmu.yaml | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
index 503160a7b9a0..3b63f2ae24db 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
@@ -28,8 +28,6 @@ properties:
           - enum:
               - qcom,msm8996-smmu-v2
               - qcom,msm8998-smmu-v2
-              - qcom,sc7180-smmu-v2
-              - qcom,sdm845-smmu-v2
           - const: qcom,smmu-v2
 
       - description: Qcom SoCs implementing "arm,mmu-500"
@@ -40,6 +38,13 @@ properties:
               - qcom,sm8150-smmu-500
               - qcom,sm8250-smmu-500
           - const: arm,mmu-500
+      - description: Qcom Adreno GPUs implementing "arm,smmu-v2"
+        items:
+          - enum:
+              - qcom,sc7180-smmu-v2
+              - qcom,sdm845-smmu-v2
+          - const: qcom,adreno-smmu
+          - const: qcom,smmu-v2
       - description: Marvell SoCs implementing "arm,mmu-500"
         items:
           - const: marvell,ap806-smmu-500
-- 
2.25.1


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