ASoC: dt-bindings: Add schema for "awinic,aw88395"

Add a DT schema for describing Awinic AW88395 audio amplifiers. They are
controlled using I2C.

Signed-off-by: Weidong Wang <wangweidong.a@awinic.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230113055301.189541-6-wangweidong.a@awinic.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/awinic,aw88395.yaml

@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/awinic,aw88395.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Awinic AW88395 Smart Audio Amplifier
+
+maintainers:
+  - Weidong Wang <wangweidong.a@awinic.com>
+
+description:
+  The Awinic AW88395 is an I2S/TDM input, high efficiency
+  digital Smart K audio amplifier with an integrated 10.25V
+  smart boost convert.
+
+allOf:
+  - $ref: dai-common.yaml#
+
+properties:
+  compatible:
+    const: awinic,aw88395
+
+  reg:
+    maxItems: 1
+
+  '#sound-dai-cells':
+    const: 0
+
+  reset-gpios:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - '#sound-dai-cells'
+  - reset-gpios
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        audio-codec@34 {
+            compatible = "awinic,aw88395";
+            reg = <0x34>;
+            #sound-dai-cells = <0>;
+            reset-gpios = <&gpio 10 GPIO_ACTIVE_LOW>;
+        };
+    };