WIP: dt-bindings: sound: nvidia,tegra-audio: add WM8994 CODEC

Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm8994.yaml

@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/nvidia,tegra-audio-wm8994.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra audio complex with WM8994 CODEC
+
+maintainers:
+  - Jon Hunter <[email protected]>
+  - Thierry Reding <[email protected]>
+
+allOf:
+  - $ref: nvidia,tegra-audio-common.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - pattern: '^[a-z0-9]+,tegra-audio-wm8994(-[a-z0-9]+)+$'
+          - const: nvidia,tegra-audio-wm8994
+
+  nvidia,audio-routing:
+    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
+    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. Valid names for sources and
+      sinks are the pins (documented in the binding document),
+      and the jacks on the board.
+    minItems: 2
+    items:
+      enum:
+        # Board Connectors
+        - "Headphone Jack"
+        - "Int Spk"
+        - "Mic Jack"
+        - "Int Mic"
+
+        # CODEC Pins TODO
+        - FIXME
+
+  nvidia,ear-sel-gpios:
+    maxItems: 1
+    description: The GPIO that switch between the microphones
+
+required:
+  - nvidia,i2s-controller
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    sound {
+        compatible = "samsung,tegra-audio-wm8994-p4wifi", "nvidia,tegra-audio-wm8994";
+        nvidia,model = "Samsung Galaxy Tab 10.1 WM8994";
+
+        nvidia,i2s-controller = <&tegra_i2s1>;
+        nvidia,audio-codec = <&wm8994>;
+
+        clocks = <&clk 211>, <&clk 153>, <&clk 200>;
+        clock-names = "pll_a", "pll_a_out0", "mclk";
+    };