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| author | Richard Fitzgerald <rf@opensource.cirrus.com> | 2025-04-15 12:50:16 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-04-15 13:58:43 +0100 |
| commit | e2bcbf99d045f6ae3826e39d1ed25978de17cbfe (patch) | |
| tree | e3f30513d6a2a9261bcf329b90569e59a9697de4 /sound/soc/codecs/Makefile | |
| parent | ac03495d7359285a007ec4fdc08d3843bb5d6b7e (diff) | |
| download | linux-next-e2bcbf99d045f6ae3826e39d1ed25978de17cbfe.tar.gz linux-next-e2bcbf99d045f6ae3826e39d1ed25978de17cbfe.zip | |
ASoC: cs48l32: Add driver for Cirrus Logic CS48L32 audio DSP
Add a codec driver for the Cirrus Logic CS48L32 audio DSP.
The CS48L32 is a low-power audio DSP with microphone inputs for
"Always on Voice" (i.e. voice trigger) and voice command processing.
It has a programmable Halo Core DSP and a variety of power-efficient
fixed-function audio processors, with configurable digital mixing
and routing.
There are two I2S/TDM audio serial ports.
Four analogue inputs are available through IN1. These feed into a
2-channel ADC through an analogue mux. There is an ALSA control for
each IN1 ADC channel to select which analogue input to use.
A dedicated digital mic (DMIC) PDM input is available on IN2.
Two PDM outputs can feed DMIC inputs on another codec or a host DMIC/PDM
input.
An on-board regulator provides a power supply or bias voltage to
attached microphones. Three switchable MICBIAS outputs are fed from this
allowing only the microphone in use to be powered-up. There are DAPM
widgets for these outputs: MICBIAS1A, MICBIAS1B and MICBIAS1C. The machine
driver must create a DAPM route from the required MICBIAS1x widget to the
INn input widgets to make the MICBIAS switch on when the audio input is
powered-up. For example if the microphone feeding CS48L32 pin IN1LN_1 is
powered from MICBIAS1A, the machine driver must create the path:
(sink) IN1LN_1 <----- (source) MICBIAS1A
Co-developed-by: Stuart Henderson <stuarth@opensource.cirrus.com>
Signed-off-by: Stuart Henderson <stuarth@opensource.cirrus.com>
Co-developed-by: Qi Zhou <qi.zhou@cirrus.com>
Signed-off-by: Qi Zhou <qi.zhou@cirrus.com>
Co-developed-by: Piotr Stankiewicz <piotrs@opensource.cirrus.com>
Signed-off-by: Piotr Stankiewicz <piotrs@opensource.cirrus.com>
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20250415115016.505777-3-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/Makefile')
| -rw-r--r-- | sound/soc/codecs/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 10f726066b6c..c125f69faeaf 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -111,6 +111,7 @@ snd-soc-cs47l35-y := cs47l35.o snd-soc-cs47l85-y := cs47l85.o snd-soc-cs47l90-y := cs47l90.o snd-soc-cs47l92-y := cs47l92.o +snd-soc-cs48l32-y := cs48l32.o cs48l32-tables.o snd-soc-cs53l30-y := cs53l30.o snd-soc-cs530x-y := cs530x.o snd-soc-cs530x-i2c-y := cs530x-i2c.o @@ -529,6 +530,7 @@ obj-$(CONFIG_SND_SOC_CS47L35) += snd-soc-cs47l35.o obj-$(CONFIG_SND_SOC_CS47L85) += snd-soc-cs47l85.o obj-$(CONFIG_SND_SOC_CS47L90) += snd-soc-cs47l90.o obj-$(CONFIG_SND_SOC_CS47L92) += snd-soc-cs47l92.o +obj-$(CONFIG_SND_SOC_CS48L32) += snd-soc-cs48l32.o obj-$(CONFIG_SND_SOC_CS53L30) += snd-soc-cs53l30.o obj-$(CONFIG_SND_SOC_CS530X) += snd-soc-cs530x.o obj-$(CONFIG_SND_SOC_CS530X_I2C) += snd-soc-cs530x-i2c.o |