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diff --git a/Documentation/devicetree/bindings/sound/audio-graph-card2.yaml b/Documentation/devicetree/bindings/sound/audio-graph-card2.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/audio-graph-card2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Audio Graph Card2
+
+maintainers:
+  - Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+properties:
+  compatible:
+    enum:
+      - audio-graph-card2
+  links:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+  label:
+    maxItems: 1
+  routing:
+    $ref: audio-graph.yaml#/properties/routing
+  aux-devs:
+    description: |
+      List of phandles pointing to auxiliary devices, such
+      as amplifiers, to be added to the sound card.
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+  multi:
+    type: object
+    description: Multi-CPU/Codec node
+  dpcm:
+    type: object
+    description: DPCM node
+  codec2codec:
+    type: object
+    description: Codec to Codec node
+  hp-det-gpios:
+    $ref: audio-graph.yaml#/properties/hp-det-gpios
+  mic-det-gpios:
+    $ref: audio-graph.yaml#/properties/mic-det-gpios
+  widgets:
+    $ref: audio-graph.yaml#/properties/widgets
+
+required:
+  - compatible
+  - links
+
+additionalProperties: false
+
+...