deleted file mode 100644
@@ -1,37 +0,0 @@
-AK4642 I2C transmitter
-
-This device supports I2C mode only.
-
-Required properties:
-
- - compatible : "asahi-kasei,ak4642" or "asahi-kasei,ak4643" or "asahi-kasei,ak4648"
- - reg : The chip select number on the I2C bus
-
-Optional properties:
-
- - #clock-cells : common clock binding; shall be set to 0
- - clocks : common clock binding; MCKI clock
- - clock-frequency : common clock binding; frequency of MCKO
- - clock-output-names : common clock binding; MCKO clock name
-
-Example 1:
-
-&i2c {
- ak4648: ak4648@12 {
- compatible = "asahi-kasei,ak4642";
- reg = <0x12>;
- };
-};
-
-Example 2:
-
-&i2c {
- ak4643: codec@12 {
- compatible = "asahi-kasei,ak4643";
- reg = <0x12>;
- #clock-cells = <0>;
- clocks = <&audio_clock>;
- clock-frequency = <12288000>;
- clock-output-names = "ak4643_mcko";
- };
-};
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/ak4642.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AK4642 I2C transmitter Device Tree Bindings
+
+maintainers:
+ - Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+properties:
+ compatible:
+ enum:
+ - asahi-kasei,ak4642
+ - asahi-kasei,ak4643
+ - asahi-kasei,ak4648
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 0
+
+ "#sound-dai-cells":
+ const: 0
+
+ clocks:
+ maxItems: 1
+
+ clock-frequency:
+ description: frequency of MCKO
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ ak4643: codec@12 {
+ compatible = "asahi-kasei,ak4643";
+ #sound-dai-cells = <0>;
+ reg = <0x12>;
+ #clock-cells = <0>;
+ clocks = <&audio_clock>;
+ clock-frequency = <12288000>;
+ clock-output-names = "ak4643_mcko";
+ };
+ };