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

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";

	};

# 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 <o.rempel@pengutronix.de>

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";

          };

        };

    };