dt-bindings: serial: document esp32s3-acm

Add documentation for the ESP32S3 USB CDC-ACM gadget controller. Signed-off-by: Max Filippov <[email protected]> Reviewed-by: Rob Herring <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
wafgo · Oct 16, 2023 · 7f399b0 · 7f399b0
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diff --git a/Documentation/devicetree/bindings/serial/esp,esp32-acm.yaml b/Documentation/devicetree/bindings/serial/esp,esp32-acm.yaml
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+# 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 gadget controller
+
+maintainers:
+  - Max Filippov <[email protected]>
+
+description:
+  Fixed function USB CDC-ACM gadget controller of the Espressif ESP32S3 SoC.
+
+allOf:
+  - $ref: serial.yaml#
+
+properties:
+  compatible:
+    const: esp,esp32s3-acm
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    serial@60038000 {
+      compatible = "esp,esp32s3-acm";
+      reg = <0x60038000 0x1000>;
+      interrupts = <96 3 0>;
+    };