ASoC: dt-bindings: ak4642: switch to yaml base Documentation

This patch switches from .txt base to .yaml base Document.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/87lfjwxlna.wl-kuninori.morimoto.gx@renesas.com
Link: https://lore.kernel.org/r/87mu4z3904.wl-kuninori.morimoto.gx@renesas.com
Link: https://lore.kernel.org/r/87wo342tds.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/sound/ak4642.txt b/Documentation/devicetree/bindings/sound/ak4642.txt
deleted file mode 100644 (file)
index 58e48ee..0000000
--- a/Documentation/devicetree/bindings/sound/ak4642.txt
+++ /dev/null
@@ -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";
-       };
-};

diff --git a/Documentation/devicetree/bindings/sound/ak4642.yaml b/Documentation/devicetree/bindings/sound/ak4642.yaml
new file mode 100644 (file)
index 0000000..6cd213b
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/ak4642.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: GPL-2.0
+%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: common clock binding; frequency of MCKO
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  clock-output-names:
+    description: common clock name
+    $ref: /schemas/types.yaml#/definitions/string
+
+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";
+        };
+    };