Re: [PATCH v10 07/13] dt-bindings: arm-smmu: Add compatible string for Adreno GPU SMMU
From: Rob Clark <hidden>
Date: 2020-07-26 16:54:42
Also in:
linux-arm-msm, linux-devicetree, linux-iommu, lkml
On Mon, Jul 20, 2020 at 8:41 AM Jordan Crouse [off-list ref] wrote:
Every Qcom Adreno GPU has an embedded SMMU for its own use. These
minor detail: this is true for a3xx and later but not a2xx ;-)
quoted hunk ↗ jump to hunk
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> --- 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 d7ceb4c34423..e52a1b146c97 100644 --- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml@@ -38,6 +38,10 @@ properties: - qcom,sc7180-smmu-500 - qcom,sdm845-smmu-500 - const: arm,mmu-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 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
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