[PATCH 4/7] dt-bindings: usb: add the Renesas USBF controller binding

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

The Renesas USBF controller is an USB2.0 device controller
(UDC) available in Renesas r9a06g032 SoC (RZ/N1 family).

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
---
 .../devicetree/bindings/usb/renesas,usbf.yaml | 64 +++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/renesas,usbf.yaml

diff --git a/Documentation/devicetree/bindings/usb/renesas,usbf.yaml b/Documentation/devicetree/bindings/usb/renesas,usbf.yaml
new file mode 100644
index 000000000000..f2b146d9d37b
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/renesas,usbf.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/renesas,usbf.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas USBF (USB Function) controller binding
+
+description: |
+   The Renesas USBF controller is an USB2.0 device
+   controller (UDC).
+
+maintainers:
+  - Herve Codina <herve.codina@bootlin.com>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - renesas,r9a06g032-usbf
+          - const: renesas,rzn1-usbf
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Internal bus clock (AHB) for Function
+      - description: Internal bus clock (AHB) for Power Management
+  clock-names:
+    items:
+      - const: hclkf
+      - const: hclkpm
+
+  interrupts:
+    items:
+      - description: The USBF EPC interrupt
+      - description: The USBF AHB-EPC interrupt
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/r9a06g032-sysctrl.h>
+
+    usb@4001e000 {
+        compatible = "renesas,r9a06g032-usbf", "renesas,rzn1-usbf";
+        reg = <0x4001e000 0x2000>;
+        interrupts =
+            <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
+            <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&sysctrl R9A06G032_HCLK_USBF>,
+                 <&sysctrl R9A06G032_HCLK_USBPM>;
+        clock-names = "hclkf", "hclkpm";
+    };
-- 
2.37.3