xref: /freebsd/sys/contrib/device-tree/Bindings/sound/invensense,ics43432.yaml (revision 8ccc0d235c226d84112561d453c49904398d085c)

# 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";
          };
        };

    };