Despite minimal datasheet differences, the driver seems perfectly compatible with CMM-4030D-261.

Tested CMM-4030D-261 to work with this changes:

/ { cmm4030d: cmm4030d { #sound-dai-cells = <0>; compatible = "cui,cmm-4030d-261"; };

sound_mic { compatible = "simple-audio-card"; simple-audio-card,name = "i2s mem mic"; simple-audio-card,format = "i2s"; simple-audio-card,bitclock-master = <&sound_master>; simple-audio-card,frame-master = <&sound_master>; sound_master: simple-audio-card,cpu { sound-dai = <&ssi2>; system-clock-frequency = <2822400>; }; simple-audio-card,codec { sound-dai = <&cmm4030d>; }; }; };

Audio has been captured and tested successfully by:

arecord -D "hw:1,0" -f S24_LE > test.wav aplay test.wav

Signed-off-by: Angelo Dureghello angelo.dureghello@timesys.com --- sound/soc/codecs/Kconfig | 2 +- sound/soc/codecs/ics43432.c | 4 +++- 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index db16071205ba..cd1976aae328 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -847,7 +847,7 @@ config SND_SOC_HDAC_HDA select SND_HDA

config SND_SOC_ICS43432 - tristate + tristate "ICS43423 and compatible i2s microphones"

config SND_SOC_INNO_RK3036 tristate "Inno codec driver for RK3036 SoC" diff --git a/sound/soc/codecs/ics43432.c b/sound/soc/codecs/ics43432.c index 47e749f03940..de4c8460ab3d 100644 --- a/sound/soc/codecs/ics43432.c +++ b/sound/soc/codecs/ics43432.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * I2S MEMS microphone driver for InvenSense ICS-43432 + * I2S MEMS microphone driver for InvenSense ICS-43432 and similar + * MEMS-based microphones. * * - Non configurable. * - I2S interface, 64 BCLs per frame, 32 bits per channel, 24 bit data @@ -53,6 +54,7 @@ static int ics43432_probe(struct platform_device *pdev) #ifdef CONFIG_OF static const struct of_device_id ics43432_ids[] = { { .compatible = "invensense,ics43432", }, + { .compatible = "cui,cmm-4030d-261", }, { } }; MODULE_DEVICE_TABLE(of, ics43432_ids);