diff options
| author | Konrad Dybcio <[email protected]> | 2023-12-04 13:55:20 +0100 |
|---|---|---|
| committer | Will Deacon <[email protected]> | 2023-12-12 12:26:20 +0000 |
| commit | 4fff78dc2490fc0c67669c610dbc42921dd23a1c (patch) | |
| tree | e7d7dd1117cc9b7e3aa744653802a1b07940e4f7 | |
| parent | fa27b35c9102e3e2b75455517f7091b294cc0552 (diff) | |
dt-bindings: arm-smmu: Document SM8[45]50 GPU SMMU
SM8450 and SM8550 both use a Qualcomm-modified MMU500 for their GPU.
In both cases, it requires a set of clocks to be enabled. Describe that.
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Konrad Dybcio <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>
| -rw-r--r-- | Documentation/devicetree/bindings/iommu/arm,smmu.yaml | 48 |
1 files changed, 46 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml index a5adfba93924..a4042ae24770 100644 --- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml @@ -91,6 +91,8 @@ properties: - qcom,sm8150-smmu-500 - qcom,sm8250-smmu-500 - qcom,sm8350-smmu-500 + - qcom,sm8450-smmu-500 + - qcom,sm8550-smmu-500 - const: qcom,adreno-smmu - const: qcom,smmu-500 - const: arm,mmu-500 @@ -479,6 +481,50 @@ allOf: - description: Voter clock required for HLOS SMMU access - description: Interface clock required for register access + - if: + properties: + compatible: + const: qcom,sm8450-smmu-500 + then: + properties: + clock-names: + items: + - const: gmu + - const: hub + - const: hlos + - const: bus + - const: iface + - const: ahb + + clocks: + items: + - description: GMU clock + - description: GPU HUB clock + - description: HLOS vote clock + - description: GPU memory bus clock + - description: GPU SNoC bus clock + - description: GPU AHB clock + + - if: + properties: + compatible: + const: qcom,sm8550-smmu-500 + then: + properties: + clock-names: + items: + - const: hlos + - const: bus + - const: iface + - const: ahb + + clocks: + items: + - description: HLOS vote clock + - description: GPU memory bus clock + - description: GPU SNoC bus clock + - description: GPU AHB clock + # Disallow clocks for all other platforms with specific compatibles - if: properties: @@ -498,8 +544,6 @@ allOf: - qcom,sdx65-smmu-500 - qcom,sm6350-smmu-500 - qcom,sm6375-smmu-500 - - qcom,sm8450-smmu-500 - - qcom,sm8550-smmu-500 - qcom,sm8650-smmu-500 - qcom,x1e80100-smmu-500 then: |