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 }; 52