Re: [PATCH 1/2] dt-bindings: PCI: qcom: Add SM8550 to binding

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Hi Abel,

On 16.11.22 14:35, Abel Vesa wrote:
Add the SM8550 platform to the binding.

Signed-off-by: Abel Vesa <abel.vesa@xxxxxxxxxx>
---
  .../devicetree/bindings/pci/qcom,pcie.yaml    | 96 +++++++++++++++++++
  1 file changed, 96 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
index 54f07852d279..efa01a8411c4 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
@@ -34,6 +34,8 @@ properties:
        - qcom,pcie-sm8250
        - qcom,pcie-sm8450-pcie0
        - qcom,pcie-sm8450-pcie1
+      - qcom,pcie-sm8550-pcie0
+      - qcom,pcie-sm8550-pcie1
        - qcom,pcie-ipq6018
reg:
@@ -92,6 +94,10 @@ properties:
    power-domains:
      maxItems: 1
+ enable-gpios:
+    description: GPIO controlled connection to ENABLE# signal
+    maxItems: 1
+
    perst-gpios:
      description: GPIO controlled connection to PERST# signal
      maxItems: 1
@@ -187,6 +193,8 @@ allOf:
                - qcom,pcie-sm8250
                - qcom,pcie-sm8450-pcie0
                - qcom,pcie-sm8450-pcie1
+              - qcom,pcie-sm8550-pcie0
+              - qcom,pcie-sm8550-pcie1
      then:
        properties:
          reg:
@@ -601,6 +609,92 @@ allOf:
            items:
              - const: pci # PCIe core reset
+ - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pcie-sm8550-pcie0
+    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: ddrss_sf_tbu # PCIe SF TBU clock
+            - const: aggre0 # Aggre NoC PCIe0 AXI clock
+        interconnects:
+          maxItems: 1
+        interconnect-names:
+          const: icc_path
+        iommus:
+          maxItems: 1
+        iommu-map:
+          maxItems: 2
+        power-domains:
+          maxItems: 1
+        power-domain-names:
+          const: gdsc
+        resets:
+          maxItems: 1
+        reset-names:
+          items:
+            - const: pci # PCIe core reset
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pcie-sm8550-pcie1
+    then:
+      properties:
+        clocks:
+          minItems: 12
+          maxItems: 12
+        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: ddrss_sf_tbu # PCIe SF TBU clock
+            - const: aggre1 # Aggre NoC PCIe1 AXI clock
+            - const: cnoc_pcie_sf_axi # Config NoC PCIe1 AXI clock
+        interconnects:
+          maxItems: 1
+        interconnect-names:
+          const: icc_path

The name of the path is too generic. Probably something like "pcie-mem" or "pcie-ddr" would be
more appropriate to indicate that this is for requesting bandwidth on the path between PCIE and
DDR memory.

Thanks,
Georgi

+        iommus:
+          maxItems: 1
+        iommu-map:
+          maxItems: 2
+        power-domains:
+          maxItems: 1
+        power-domain-names:
+          const: gdsc
+        resets:
+          maxItems: 2
+        reset-names:
+          items:
+            - const: pci # PCIe core reset
+            - const: pcie_1_link_down_reset # PCIe link down reset
+
    - if:
        properties:
          compatible:
@@ -672,6 +766,8 @@ allOf:
                - qcom,pcie-sm8250
                - qcom,pcie-sm8450-pcie0
                - qcom,pcie-sm8450-pcie1
+              - qcom,pcie-sm8550-pcie0
+              - qcom,pcie-sm8550-pcie1
      then:
        oneOf:
          - properties:




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