diff mbox series

[v8,3/7] dt-bindings: arm-smmu: Add compatible string for Adreno GPU SMMU

Message ID 20200611222128.28826-4-jcrouse@codeaurora.org
State Superseded
Headers show
Series iommu/arm-smmu: Enable split pagetable support | expand

Commit Message

Jordan Crouse June 11, 2020, 10:21 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>
---

 Documentation/devicetree/bindings/iommu/arm,smmu.yaml | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Rob Herring June 17, 2020, 10:40 p.m. UTC | #1
On Thu, 11 Jun 2020 16:21:24 -0600, Jordan Crouse wrote:
> 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>
> ---
> 
>  Documentation/devicetree/bindings/iommu/arm,smmu.yaml | 4 ++++
>  1 file changed, 4 insertions(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

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