dt-bindings: iommu: arm,smmu: document clocks for the SM8350 GPU SMMU

Document the clocks for Qualcomm SM8350 Adreno GPU SMMU, already used in
DTS:

  sm8350-hdk.dtb: iommu@3da0000: clock-names: False schema does not allow ['bus', 'iface', 'ahb', 'hlos1_vote_gpu_smmu', 'cx_gmu', 'hub_cx_int', 'hub_aon']
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20231112184522.3759-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Will Deacon <will@kernel.org>

Documentation/devicetree/bindings/iommu/arm,smmu.yaml

@@ -429,6 +429,30 @@ allOf:
             - description: interface clock required to access smmu's registers
                 through the TCU's programming interface.
 
+  - if:
+      properties:
+        compatible:
+          items:
+            - enum:
+                - qcom,sm8350-smmu-500
+            - const: qcom,adreno-smmu
+            - const: qcom,smmu-500
+            - const: arm,mmu-500
+    then:
+      properties:
+        clock-names:
+          items:
+            - const: bus
+            - const: iface
+            - const: ahb
+            - const: hlos1_vote_gpu_smmu
+            - const: cx_gmu
+            - const: hub_cx_int
+            - const: hub_aon
+        clocks:
+          minItems: 7
+          maxItems: 7
+
   - if:
       properties:
         compatible:
@@ -472,7 +496,6 @@ allOf:
               - qcom,sdx65-smmu-500
               - qcom,sm6350-smmu-500
               - qcom,sm6375-smmu-500
-              - qcom,sm8350-smmu-500
               - qcom,sm8450-smmu-500
               - qcom,sm8550-smmu-500
     then: