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

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Date:   Tue, 27 Oct 2020 16:34:07 -0600
From:   Jordan Crouse <jcrouse@...eaurora.org>
To:     linux-arm-msm@...r.kernel.org
Cc:     Rob Herring <robh@...nel.org>, Rob Clark <robdclark@...omium.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Joerg Roedel <joro@...tes.org>,
        Rob Herring <robh+dt@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Will Deacon <will@...nel.org>, devicetree@...r.kernel.org,
        iommu@...ts.linux-foundation.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v18 3/4] dt-bindings: arm-smmu: Add compatible string for Adreno GPU SMMU

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@...eaurora.org>
Reviewed-by: Rob Herring <robh@...nel.org>
Signed-off-by: Rob Clark <robdclark@...omium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---

 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