[PATCH 3/4] dt-bindings: serial: document esp32s3-acm bindings

[Max Filippov <jcmvbkbc@gmail.com>]

Add documentation for the ESP32S3 ACM controller.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
 .../bindings/serial/esp,esp32-acm.yaml        | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/esp,esp32-acm.yaml

diff --git a/Documentation/devicetree/bindings/serial/esp,esp32-acm.yaml b/Documentation/devicetree/bindings/serial/esp,esp32-acm.yaml
new file mode 100644
index 000000000000..dafbae38aa64
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/esp,esp32-acm.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/esp,esp32-acm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ESP32S3 ACM controller
+
+maintainers:
+  - Max Filippov <jcmvbkbc@gmail.com>
+
+description: |
+  ESP32S3 ACM controller is a communication device found in the ESP32S3
+  SoC that is connected to one of its USB controllers.
+
+properties:
+  compatible:
+    const: esp,esp32s3-acm
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    acm@60038000 {
+            compatible = "esp,esp32s3-acm";
+            reg = <0x60038000 0x1000>;
+            interrupts = <96 3 0>;
+    };
-- 
2.30.2