linux-kernel - [PATCH v5 4/5] dt-bindings: serial: document esp32s3-acm

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Message-Id: <20231010085926.1021667-5-jcmvbkbc@gmail.com>
Date:   Tue, 10 Oct 2023 01:59:25 -0700
From:   Max Filippov <jcmvbkbc@...il.com>
To:     linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
        devicetree@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        Max Filippov <jcmvbkbc@...il.com>,
        Rob Herring <robh@...nel.org>
Subject: [PATCH v5 4/5] dt-bindings: serial: document esp32s3-acm

Add documentation for the ESP32S3 USB CDC-ACM gadget controller.

Signed-off-by: Max Filippov <jcmvbkbc@...il.com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
Changes v4->v5:
- add the word 'gadget' to the description to make it more consistent
  with linux terminology

Changes v2->v3:
- add a reference to serial.yaml

Changes v1->v2:
- fix description
- rename node in the example
- fix example indentation

 .../bindings/serial/esp,esp32-acm.yaml        | 42 +++++++++++++++++++
 1 file changed, 42 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..77fbb2c72171
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/esp,esp32-acm.yaml
@@ -0,0 +1,42 @@
+# 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 <jcmvbkbc@...il.com>
+
+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@...38000 {
+      compatible = "esp,esp32s3-acm";
+      reg = <0x60038000 0x1000>;
+      interrupts = <96 3 0>;
+    };
-- 
2.30.2