dt-bindings: sound: convert ICS-43432 binding to YAML

Convert the ICS-43432 MEMS microphone device tree binding from text format
to YAML.

Signed-off-by: Oleksij Rempel <[e-mail]>
Reviewed-by: Rob Herring (Arm) <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Alexandre Torgue <[e-mail]>

Documentation/devicetree/bindings/sound/ics43432.txt

···
-Invensense ICS-43432-compatible MEMS microphone with I2S output.
-
-There are no software configuration options for this device, indeed, the only
-host connection is the I2S interface. Apart from requirements on clock
-frequency (460 kHz to 3.379 MHz according to the data sheet) there must be
-64 clock cycles in each stereo output frame; 24 of the 32 available bits
-contain audio data. A hardware pin determines if the device outputs data
-on the left or right channel of the I2S frame.
-
-Required properties:
-  - compatible: should be one of the following.
-     "invensense,ics43432": For the Invensense ICS43432
-     "cui,cmm-4030d-261": For the CUI CMM-4030D-261-I2S-TR
-
-Example:
-
-	ics43432: ics43432 {
-		compatible = "invensense,ics43432";
-	};

Documentation/devicetree/bindings/sound/invensense,ics43432.yaml

···
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/invensense,ics43432.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Invensense ICS-43432-compatible MEMS Microphone with I2S Output
+
+maintainers:
+  - Oleksij Rempel <[e-mail]>
+
+description:
+  The ICS-43432 and compatible MEMS microphones output audio over an I2S
+  interface and require no software configuration. The only host connection
+  is the I2S bus. The microphone requires an I2S clock frequency between
+  460 kHz and 3.379 MHz and 64 clock cycles per stereo frame. Each frame
+  contains 32-bit slots per channel, with 24 bits carrying audio data.
+  A hardware pin determines whether the microphone outputs audio on the
+  left or right channel of the I2S frame.
+
+allOf:
+  - $ref: dai-common.yaml#
+
+properties:
+  compatible:
+    enum:
+      - invensense,ics43432
+      - cui,cmm-4030d-261
+
+  port:
+    $ref: audio-graph-port.yaml#
+    unevaluatedProperties: false
+
+required:
+  - compatible
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    ics43432: ics43432 {
+        compatible = "invensense,ics43432";
+
+        port {
+          endpoint {
+            remote-endpoint = <&i2s1_endpoint>;
+            dai-format = "i2s";
+          };
+        };
+
+    };