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 <o.rempel@pengutronix.de>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250305131425.1491769-2-o.rempel@pengutronix.de
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
This commit is contained in:
Oleksij Rempel 2025-03-05 14:14:22 +01:00 committed by Alexandre Torgue
parent 44525a4562
commit e0f4274365
2 changed files with 51 additions and 19 deletions

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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";
};

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# 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";
};
};
};