Squashed 'dts/upstream/' content from commit aaba2d45dc2a

git-subtree-dir: dts/upstream
git-subtree-split: aaba2d45dc2a1b3bbb710f2a3808ee1c9f340abe
diff --git a/Bindings/sound/audio-graph.yaml b/Bindings/sound/audio-graph.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/audio-graph.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Audio Graph
+
+maintainers:
+  - Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+allOf:
+  - $ref: /schemas/sound/dai-params.yaml#
+
+properties:
+  dais:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+  label:
+    maxItems: 1
+  prefix:
+    description: device name prefix
+    $ref: /schemas/types.yaml#/definitions/string
+  routing:
+    description: |
+      A list of the connections between audio components.
+      Each entry is a pair of strings, the first being the
+      connection's sink, the second being the connection's source.
+    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
+  widgets:
+    description: |
+      User specified audio sound widgets.
+      Each entry is a pair of strings, the first being the type of
+      widget ("Microphone", "Line", "Headphone", "Speaker"), the
+      second being the machine specific name for the widget.
+    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
+
+  pa-gpios:
+    maxItems: 1
+  hp-det-gpio:
+    maxItems: 1
+  mic-det-gpio:
+    maxItems: 1
+
+required:
+  - dais
+
+additionalProperties: true