[RESEND 1/3] ASoC: ics43432: add CMM-4030D-261 support

Angelo Dureghello angelo.dureghello at timesys.com
Sat Aug 21 09:53:52 CEST 2021


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 at 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);
-- 
2.32.0



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