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[v2,1/6] dt-bindings: arm-smmu: Document SM8[45]50 GPU SMMU

Message ID 20231127-topic-a7xx_dt-v2-1-2a437588e563@linaro.org
State Not Applicable
Headers show
Series SM8450 / SM8550 Adreno | expand

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Commit Message

Konrad Dybcio Dec. 4, 2023, 12:55 p.m. UTC 
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 <krzysztof.kozlowski@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 .../devicetree/bindings/iommu/arm,smmu.yaml        | 48 +++++++++++++++++++++-
 1 file changed, 46 insertions(+), 2 deletions(-)
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Patch

diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
index aa9e1c0895a5..19dba93a7654 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
@@ -89,6 +89,8 @@  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
@@ -453,6 +455,50 @@  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:
@@ -473,8 +519,6 @@  allOf:
               - qcom,sm6350-smmu-500
               - qcom,sm6375-smmu-500
               - qcom,sm8350-smmu-500
-              - qcom,sm8450-smmu-500
-              - qcom,sm8550-smmu-500
     then:
       properties:
         clock-names: false