invensense,ics43432.yaml

 1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
 2%YAML 1.2
 3---
 4$id: http://devicetree.org/schemas/sound/invensense,ics43432.yaml#
 5$schema: http://devicetree.org/meta-schemas/core.yaml#
 6
 7title: Invensense ICS-43432-compatible MEMS Microphone with I2S Output
 8
 9maintainers:
10  - Oleksij Rempel <o.rempel@pengutronix.de>
11
12description:
13  The ICS-43432 and compatible MEMS microphones output audio over an I2S
14  interface and require no software configuration. The only host connection
15  is the I2S bus. The microphone requires an I2S clock frequency between
16  460 kHz and 3.379 MHz and 64 clock cycles per stereo frame. Each frame
17  contains 32-bit slots per channel, with 24 bits carrying audio data.
18  A hardware pin determines whether the microphone outputs audio on the
19  left or right channel of the I2S frame.
20
21allOf:
22  - $ref: dai-common.yaml#
23
24properties:
25  compatible:
26    enum:
27      - invensense,ics43432
28      - cui,cmm-4030d-261
29
30  port:
31    $ref: audio-graph-port.yaml#
32    unevaluatedProperties: false
33
34required:
35  - compatible
36
37unevaluatedProperties: false
38
39examples:
40  - |
41    ics43432: ics43432 {
42        compatible = "invensense,ics43432";
43
44        port {
45          endpoint {
46            remote-endpoint = <&i2s1_endpoint>;
47            dai-format = "i2s";
48          };
49        };
50
51    };