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

[Bjorn Andersson]

On Thu 13 Aug 21:41 CDT 2020, Rob Clark wrote:

> From: Jordan Crouse <jcrouse@xxxxxxxxxxxxxx>
> 
> 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.
> 

Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>

> Signed-off-by: Jordan Crouse <jcrouse@xxxxxxxxxxxxxx>
> Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
> Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
> ---
>  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
>