[PATCH v3 2/8] dt-bindings: PCI: renesas,pci-rcar-gen2: Add device tree support for r9a06g032

[Herve Codina <herve.codina@bootlin.com>]

Add internal PCI bridge support for the r9a06g032 SOC. The Renesas
RZ/N1D (R9A06G032) internal PCI bridge is compatible with the one
present in the R-Car Gen2 family.
Compared to the R-Car Gen2 family, it needs three clocks instead of
one.

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
---
 .../bindings/pci/renesas,pci-rcar-gen2.yaml   | 43 ++++++++++++++++---
 1 file changed, 37 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
index 494eb975c146..c29c46533e1b 100644
--- a/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
+++ b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
@@ -32,6 +32,10 @@ properties:
               - renesas,pci-r8a7793      # R-Car M2-N
               - renesas,pci-r8a7794      # R-Car E2
           - const: renesas,pci-rcar-gen2 # R-Car Gen2 and RZ/G1
+      - items:
+          - enum:
+              - renesas,pci-r9a06g032     # RZ/N1D
+          - const: renesas,pci-rzn1       # RZ/N1
 
   reg:
     items:
@@ -41,13 +45,9 @@ properties:
   interrupts:
     maxItems: 1
 
-  clocks:
-    items:
-      - description: Device clock
+  clocks: true
 
-  clock-names:
-    items:
-      - const: pclk
+  clock-names: true
 
   resets:
     maxItems: 1
@@ -113,6 +113,37 @@ required:
   - "#size-cells"
   - "#interrupt-cells"
 
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - renesas,pci-rzn1
+
+then:
+  properties:
+    clocks:
+      items:
+        - description: Internal bus clock (AHB) for HOST
+        - description: Internal bus clock (AHB) Power Management
+        - description: PCI clock for USB subsystem
+    clock-names:
+      items:
+        - const: hclk_usbh
+        - const: hclk_usbpm
+        - const: clk_pci_usb
+  required:
+    - clock-names
+
+else:
+  properties:
+    clocks:
+      items:
+        - description: Device clock
+    clock-names:
+      items:
+        - const: pclk
+
 unevaluatedProperties: false
 
 examples:
-- 
2.35.1