[PATCH v4 1/6] dt-bindings: usb: gadget: udc: add Axiado AX3000 and AX3005 UDC

[Petar Stepanovic]

Add a Devicetree binding for the USB device controller integrated into
the Axiado AX3000 and AX3005 SoCs.

The controller is based on a Corigine USB 3.1 IP core that is
dual-role capable (device and host), used here in device role. It
provides SuperSpeed (5 Gb/s) or High-Speed (480 Mb/s) operation, and
supports control, bulk, interrupt, and isochronous transfer types
across multiple configurable endpoints.

Co-developed-by: Naveen Kumar Rajgiri Bassappa <rbnaveenkumar at axiado.com>
Signed-off-by: Naveen Kumar Rajgiri Bassappa <rbnaveenkumar at axiado.com>
Co-developed-by: Krutik Shah <krutikshah at axiado.com>
Signed-off-by: Krutik Shah <krutikshah at axiado.com>
Signed-off-by: Petar Stepanovic <pstepanovic at axiado.com>
---
 .../devicetree/bindings/usb/axiado,ax3000-udc.yaml | 69 ++++++++++++++++++++++
 MAINTAINERS                                        |  8 +++
 2 files changed, 77 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/axiado,ax3000-udc.yaml b/Documentation/devicetree/bindings/usb/axiado,ax3000-udc.yaml
new file mode 100644
index 000000000000..b9f7f4879ee0
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/axiado,ax3000-udc.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/axiado,ax3000-udc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Axiado AX3000/AX3005 USB Device Controller
+
+maintainers:
+  - Petar Stepanovic <pstepanovic at axiado.com>
+  - Naveen Kumar Rajgiri Bassappa <rbnaveenkumar at axiado.com>
+  - Prasad Bolisetty <pbolisetty at axiado.com>
+
+description:
+  Axiado USB dual-role controller based on the Corigine USB 3.1 IP core.
+  Supports USB 3.1 SuperSpeed and USB 2.0 High-Speed device operation
+  with control, bulk, interrupt, and isochronous transfers.
+
+allOf:
+  - $ref: usb.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: axiado,ax3000-udc
+      - items:
+          - const: axiado,ax3005-udc
+          - const: axiado,ax3000-udc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  phys:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        usb at 81200000 {
+            compatible = "axiado,ax3000-udc";
+            reg = <0x0 0x81200000 0x0 0x100000>;
+            interrupt-parent = <&gic500>;
+            interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+            resets = <&reset 0>;
+            phys = <&usb_phy>;
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 65e8a4b5c90b..58c5c8e00870 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4508,6 +4508,14 @@ F:	Documentation/devicetree/bindings/spi/axiado,ax3000-spi.yaml
 F:	drivers/spi/spi-axiado.c
 F:	drivers/spi/spi-axiado.h
 
+AXIADO USB UDC DRIVER
+M:	Petar Stepanovic <pstepanovic at axiado.com>
+M:	Naveen Kumar Rajgiri Bassappa <rbnaveenkumar at axiado.com>
+M:	Prasad Bolisetty <pbolisetty at axiado.com>
+L:	linux-usb at vger.kernel.org
+S:	Supported
+F:	Documentation/devicetree/bindings/usb/axiado,ax3000-udc.yaml
+
 AYANEO PLATFORM EC DRIVER
 M:	Antheas Kapenekakis <lkml at antheas.dev>
 L:	platform-driver-x86 at vger.kernel.org

-- 
2.34.1