[PATCH 3/6] dt-bindings: pci/qcom-pcie: specify reg-names explicitly

[Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>]

Instead of specifying the enum of possible reg-names, specify them
explicitly. This allows us to specify which chipsets need the "atu"
regions, which do not. Also it clearly describes which platforms
enumerate PCIe cores using the dbi region and which use parf region for
that.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
 .../devicetree/bindings/pci/qcom,pcie.yaml    | 96 ++++++++++++++++---
 1 file changed, 81 insertions(+), 15 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
index 7210057d1511..e78e63ea4b25 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
@@ -35,21 +35,6 @@ properties:
           - qcom,pcie-ipq6018
       - const: snps,dw-pcie
 
-  reg:
-    minItems: 4
-    maxItems: 5
-
-  reg-names:
-    minItems: 4
-    maxItems: 5
-    items:
-      enum:
-        - parf # Qualcomm specific registers
-        - dbi # DesignWare PCIe registers
-        - elbi # External local bus interface registers
-        - config # PCIe configuration space
-        - atu # ATU address space (optional)
-
   interrupts:
     maxItems: 1
 
@@ -108,6 +93,87 @@ required:
 
 allOf:
   - $ref: /schemas/pci/pci-bus.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pcie-apq8064
+              - qcom,pcie-ipq4019
+              - qcom,pcie-ipq8064
+              - qcom,pcie-ipq8064v2
+              - qcom,pcie-ipq8074
+              - qcom,pcie-qcs404
+    then:
+      properties:
+        reg:
+          minItems: 4
+          maxItems: 4
+        reg-names:
+          items:
+            - const: dbi # DesignWare PCIe registers
+            - const: elbi # External local bus interface registers
+            - const: parf # Qualcomm specific registers
+            - const: config # PCIe configuration space
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pcie-ipq6018
+    then:
+      properties:
+        reg:
+          minItems: 5
+          maxItems: 5
+        reg-names:
+          items:
+            - const: dbi # DesignWare PCIe registers
+            - const: elbi # External local bus interface registers
+            - const: atu # ATU address space (optional)
+            - const: parf # Qualcomm specific registers
+            - const: config # PCIe configuration space
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pcie-apq8084
+              - qcom,pcie-msm8996
+              - qcom,pcie-sdm845
+    then:
+      properties:
+        reg:
+          minItems: 4
+          maxItems: 4
+        reg-names:
+          items:
+            - const: parf # Qualcomm specific registers
+            - const: dbi # DesignWare PCIe registers
+            - const: elbi # External local bus interface registers
+            - const: config # PCIe configuration space
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pcie-sc7280
+              - qcom,pcie-sc8180x
+              - qcom,pcie-sm8250
+              - qcom,pcie-sm8450-pcie0
+              - qcom,pcie-sm8450-pcie1
+    then:
+      properties:
+        reg:
+          minItems: 5
+          maxItems: 5
+        reg-names:
+          items:
+            - const: parf # Qualcomm specific registers
+            - const: dbi # DesignWare PCIe registers
+            - const: elbi # External local bus interface registers
+            - const: atu # ATU address space (optional)
+            - const: config # PCIe configuration space
   - if:
       properties:
         compatible:
-- 
2.35.1