dt-bindings: PCI: qcom: Add SDX55 SoC

Add support for the PCIe controller on the Qcom SDX55 SoC to the binding.

Link: https://lore.kernel.org/r/20230308082424.140224-4-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Documentation/devicetree/bindings/pci/qcom,pcie.yaml

@@ -33,6 +33,7 @@ properties:
           - qcom,pcie-sc8180x
           - qcom,pcie-sc8280xp
           - qcom,pcie-sdm845
+          - qcom,pcie-sdx55
           - qcom,pcie-sm8150
           - qcom,pcie-sm8250
           - qcom,pcie-sm8350
@@ -203,6 +204,7 @@ allOf:
               - qcom,pcie-sc7280
               - qcom,pcie-sc8180x
               - qcom,pcie-sc8280xp
+              - qcom,pcie-sdx55
               - qcom,pcie-sm8250
               - qcom,pcie-sm8350
               - qcom,pcie-sm8450-pcie0
@@ -673,6 +675,32 @@ allOf:
           items:
             - const: pci # PCIe core reset
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pcie-sdx55
+    then:
+      properties:
+        clocks:
+          minItems: 7
+          maxItems: 7
+        clock-names:
+          items:
+            - const: pipe # PIPE clock
+            - const: aux # Auxiliary clock
+            - const: cfg # Configuration clock
+            - const: bus_master # Master AXI clock
+            - const: bus_slave # Slave AXI clock
+            - const: slave_q2a # Slave Q2A clock
+            - const: sleep # PCIe Sleep clock
+        resets:
+          maxItems: 1
+        reset-names:
+          items:
+            - const: pci # PCIe core reset
+
   - if:
       properties:
         compatible: