Add documentation for Airoha AN7581 AFE YAML schema.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 .../bindings/sound/airoha,an7581-wm8960.yaml  | 67 +++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/airoha,an7581-wm8960.yaml

diff --git a/Documentation/devicetree/bindings/sound/airoha,an7581-wm8960.yaml b/Documentation/devicetree/bindings/sound/airoha,an7581-wm8960.yaml
new file mode 100644
index 000000000000..ebeda0876280
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/airoha,an7581-wm8960.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/airoha,an7581-wm8960.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Airoha AN7581 sound card with WM8960 codec
+
+maintainers:
+  - Christian Marangi <ansuelsmth@gmail.com>
+
+allOf:
+  - $ref: sound-card-common.yaml#
+
+properties:
+  compatible:
+    const: airoha,an7581-wm8960-sound
+
+  platform:
+    type: object
+    additionalProperties: false
+    properties:
+      sound-dai:
+        description: The phandle of AN7581 platform.
+        maxItems: 1
+    required:
+      - sound-dai
+
+  codec:
+    type: object
+    additionalProperties: false
+    properties:
+      sound-dai:
+        description: The phandle of wm8960 codec.
+        maxItems: 1
+    required:
+      - sound-dai
+
+unevaluatedProperties: false
+
+required:
+  - compatible
+  - audio-routing
+  - platform
+  - codec
+
+examples:
+  - |
+    sound {
+        compatible = "airoha,an7581-wm8960-sound";
+        model = "an7581-wm8960";
+        audio-routing =
+            "Headphone", "HP_L",
+            "Headphone", "HP_R",
+            "LINPUT1", "AMIC",
+            "RINPUT1", "AMIC";
+
+        platform {
+            sound-dai = <&afe>;
+        };
+
+        codec {
+            sound-dai = <&wm8960>;
+        };
+    };
+
+...
-- 
2.51.0