diff options
| author | Konrad Dybcio <konrad.dybcio@linaro.org> | 2023-03-15 13:52:08 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-03-27 14:37:01 +0300 |
| commit | 3ad6585509dc8157e598dbd06b71efed2e45fee8 (patch) | |
| tree | 7300dd140a304f4f6727e0cc0be9f5da179b2fae /Documentation/devicetree/bindings/iommu | |
| parent | 16d1646871fbe800c9751f0816a970f9126a6586 (diff) | |
| download | linux-3ad6585509dc8157e598dbd06b71efed2e45fee8.tar.xz | |
dt-bindings: arm-smmu: Document SM61[12]5 GPU SMMU
Both of these SoCs have a Qualcomm MMU500 implementation of SMMU
in front of their GPUs that expect 3 clocks. Both of them also have
an APPS SMMU that expects no clocks. Remove qcom,sm61[12]5-smmu-500
from the "no clocks" list (intentionally 'breaking' the schema checks
of APPS SMMU, as now it *can* accept clocks - with the current
structure of this file it would have taken a wastefully-long time to
sort this out properly..) and add necessary yaml to describe the
clocks required by the GPU SMMUs.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230315-topic-kamorta_adrsmmu-v1-1-d1c0dea90bd9@linaro.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/iommu')
| -rw-r--r-- | Documentation/devicetree/bindings/iommu/arm,smmu.yaml | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml index f45e4296a5ea..ba677d401e24 100644 --- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml @@ -80,6 +80,8 @@ properties: items: - enum: - qcom,sc7280-smmu-500 + - qcom,sm6115-smmu-500 + - qcom,sm6125-smmu-500 - qcom,sm8150-smmu-500 - qcom,sm8250-smmu-500 - qcom,sm8350-smmu-500 @@ -376,6 +378,30 @@ allOf: - description: interface clock required to access smmu's registers through the TCU's programming interface. + - if: + properties: + compatible: + items: + - enum: + - qcom,sm6115-smmu-500 + - qcom,sm6125-smmu-500 + - const: qcom,adreno-smmu + - const: qcom,smmu-500 + - const: arm,mmu-500 + then: + properties: + clock-names: + items: + - const: mem + - const: hlos + - const: iface + + clocks: + items: + - description: GPU memory bus clock + - description: Voter clock required for HLOS SMMU access + - description: Interface clock required for register access + # Disallow clocks for all other platforms with specific compatibles - if: properties: @@ -395,8 +421,6 @@ allOf: - qcom,sdm845-smmu-500 - qcom,sdx55-smmu-500 - qcom,sdx65-smmu-500 - - qcom,sm6115-smmu-500 - - qcom,sm6125-smmu-500 - qcom,sm6350-smmu-500 - qcom,sm6375-smmu-500 - qcom,sm8350-smmu-500 |