[PATCH 1/4] dt-bindings: PCI: renesas,r9a08g045s33-pcie: Document RZ/G3L SoC

From: Biju Das <[email protected]>

Extend the existing device tree bindings for Renesas RZ/G3S PCIe
controller to include support for the RZ/G3L (renesas,r9a08g046-pcie)
PCIe controller. The RZ/G3L PCIe controller is similar to RZ/G3S but has
some key differences:
     - Has 3 clocks compared to 2 on other SoCs.
     - Has a different set of reset signals

Add device tree bindings for renesas,r9a08g046-pcie compatible IPs.

Signed-off-by: Biju Das <[email protected]>
---
 .../bindings/pci/renesas,r9a08g045-pcie.yaml  | 33 ++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pci/renesas,r9a08g045-pcie.yaml b/Documentation/devicetree/bindings/pci/renesas,r9a08g045-pcie.yaml
index 09d78bd1a577..911b1976bf53 100644
--- a/Documentation/devicetree/bindings/pci/renesas,r9a08g045-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/renesas,r9a08g045-pcie.yaml
@@ -13,7 +13,7 @@ description: |
   PCIe host controller found in Renesas RZ/G3S and similar SoCs complies
   with PCIe Base Specification 4.0 and supports different link speeds
   depending on the SoC variant:
-    - Gen2 (5 GT/s): RZ/G3S
+    - Gen2 (5 GT/s): RZ/G3{L,S}
     - Gen3 (8 GT/s): RZ/G3E, RZ/V2H(P), RZ/V2N
 
 properties:
@@ -21,6 +21,7 @@ properties:
     oneOf:
       - enum:
           - renesas,r9a08g045-pcie # RZ/G3S
+          - renesas,r9a08g046-pcie # RZ/G3L
           - renesas,r9a09g047-pcie # RZ/G3E
           - renesas,r9a09g057-pcie # RZ/V2H(P)
       - items:
@@ -87,14 +88,18 @@ properties:
   interrupt-controller: true
 
   clocks:
+    minItems: 2
     items:
       - description: System clock
       - description: PM control clock or clock for L1 substate handling
+      - description: PM control clock or clock for L1 substate handling
 
   clock-names:
+    minItems: 2
     items:
       - const: aclk
       - enum: [pm, pmu]
+      - enum: [pm, pmu]
 
   resets:
     minItems: 1
@@ -215,6 +220,8 @@ allOf:
           maxItems: 16
         interrupt-names:
           maxItems: 16
+        clocks:
+          maxItems: 2
         clock-names:
           items:
             - const: aclk
@@ -223,6 +230,28 @@ allOf:
           minItems: 7
         reset-names:
           minItems: 7
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,r9a08g046-pcie
+    then:
+      properties:
+        interrupts:
+          maxItems: 16
+        interrupt-names:
+          maxItems: 16
+        clocks:
+          minItems: 3
+        clock-names:
+          items:
+            - const: aclk
+            - const: pm
+            - const: pmu
+        resets:
+          maxItems: 1
+        reset-names:
+          maxItems: 1
   - if:
       properties:
         compatible:
@@ -236,6 +265,8 @@ allOf:
           minItems: 23
         interrupt-names:
           minItems: 23
+        clocks:
+          maxItems: 2
         clock-names:
           items:
             - const: aclk
-- 
2.43.0