[RFC PATCH v2 04/11] dt-bindings: arm-smmu: add special case for Google Cheza platform

[Dmitry Baryshkov]

Cheza fw does not properly program the GPU aperture to allow the
GPU to update the SMMU pagetables for context switches. The board file
works around this by dropping the "qcom,adreno-smmu" compat string.
Add this usecase to arm,smmu.yaml schema.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.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 abcb1ee4b58f..f44572cbb071 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
@@ -66,6 +66,10 @@ properties:
               - qcom,sdm845-smmu-v2
           - const: qcom,adreno-smmu
           - const: qcom,smmu-v2
+      - description: Qcom Adreno GPUs on Google Cheza platform
+        items:
+          - const: qcom,sdm845-smmu-v2
+          - const: qcom,smmu-v2
       - description: Marvell SoCs implementing "arm,mmu-500"
         items:
           - const: marvell,ap806-smmu-500
-- 
2.35.1