dt-bindings: PCI: qcom: Add schema for sc7280 chipset

Add support for sc7280-specific clock and reset definitions.

Link: https://lore.kernel.org/r/20220506152107.1527552-5-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>

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

@@ -25,6 +25,7 @@ properties:
       - qcom,pcie-ipq4019
       - qcom,pcie-ipq8074
       - qcom,pcie-qcs404
+      - qcom,pcie-sc7280
       - qcom,pcie-sc8180x
       - qcom,pcie-sdm845
       - qcom,pcie-sm8150
@@ -177,6 +178,7 @@ allOf:
         compatible:
           contains:
             enum:
+              - qcom,pcie-sc7280
               - qcom,pcie-sc8180x
               - qcom,pcie-sm8250
               - qcom,pcie-sm8450-pcie0
@@ -412,6 +414,36 @@ allOf:
             - const: pwr # PWR reset
             - const: ahb # AHB reset
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pcie-sc7280
+    then:
+      properties:
+        clocks:
+          minItems: 11
+          maxItems: 11
+        clock-names:
+          items:
+            - const: pipe # PIPE clock
+            - const: pipe_mux # PIPE MUX
+            - const: phy_pipe # PIPE output clock
+            - const: ref # REFERENCE 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: tbu # PCIe TBU clock
+            - const: ddrss_sf_tbu # PCIe SF TBU clock
+        resets:
+          maxItems: 1
+        reset-names:
+          items:
+            - const: pci # PCIe core reset
+
   - if:
       properties:
         compatible: