ASoC: dt-bindings: realtek,alc5623: convert to DT schema

Convert alc5623 audio codec binding to DT schema.

Also add "realtek,alc5621" to the compatible list for
existing use in kirkwood-t5325.dts.

Signed-off-by: Mahdi Khosravi <mmk1776@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20250811080940.7909-1-mmk1776@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/alc5623.txt

@@ -1,25 +0,0 @@
-ALC5621/ALC5622/ALC5623 audio Codec
-
-Required properties:
-
- - compatible:	"realtek,alc5623"
- - reg:		the I2C address of the device.
-
-Optional properties:
-
- - add-ctrl:	  Default register value for Reg-40h, Additional Control
-		  Register. If absent or has the value of 0, the
-		  register is untouched.
-
- - jack-det-ctrl: Default register value for Reg-5Ah, Jack Detect
-		  Control Register. If absent or has value 0, the
-		  register is untouched.
-
-Example:
-
-	alc5621: alc5621@1a {
-		compatible = "alc5621";
-		reg = <0x1a>;
-		add-ctrl = <0x3700>;
-		jack-det-ctrl = <0x4810>;
-	};

Documentation/devicetree/bindings/sound/realtek,alc5623.yaml

@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/realtek,alc5623.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ALC5621/ALC5623 Audio Codec
+
+maintainers:
+  - Mahdi Khosravi <mmk1776@gmail.com>
+
+allOf:
+  - $ref: dai-common.yaml#
+
+properties:
+  compatible:
+    enum:
+      - realtek,alc5621
+      - realtek,alc5623
+
+  reg:
+    maxItems: 1
+
+  add-ctrl:
+    description:
+      Default register value for Reg-40h, Additional Control Register.
+      If absent or zero, the register is left untouched.
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  jack-det-ctrl:
+    description:
+      Default register value for Reg-5Ah, Jack Detect Control Register.
+      If absent or zero, the register is left untouched.
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        codec@1a {
+            compatible = "realtek,alc5623";
+            reg = <0x1a>;
+            add-ctrl = <0x3700>;
+            jack-det-ctrl = <0x4810>;
+        };
+    };