diff options
| author | Ricard Wanderlof <ricard.wanderlof@axis.com> | 2015-08-27 09:35:20 (GMT) |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-08-27 16:09:27 (GMT) |
| commit | 3b7ce99748f0d006f9d1aa85709872e7b46787f7 (patch) | |
| tree | b2e1a554f073b831f94ebdd81cc264e920907482 /Documentation | |
| parent | bc0195aad0daa2ad5b0d76cce22b167bc3435590 (diff) | |
| download | linux-3b7ce99748f0d006f9d1aa85709872e7b46787f7.tar.xz | |
ASoC: ics43432: Add codec driver for InvenSense ICS-43432
Add support for the InvenSense ICS-43432 I2S MEMS microphone.
This is a non-software-configurable MEMS microphone with I2S output.
Tested on a setup with a single ICS-43432 (the device itself supports
stereo operation using a hardware pin controlling left vs. right channel
output).
Signed-off-by: Ricard Wanderlof <ricardw@axis.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/ics43432.txt | 17 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/vendor-prefixes.txt | 1 |
2 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/ics43432.txt b/Documentation/devicetree/bindings/sound/ics43432.txt new file mode 100644 index 0000000..b02e3a6 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/ics43432.txt @@ -0,0 +1,17 @@ +Invensense ICS-43432 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 : Must be "invensense,ics43432" + +Example: + + ics43432: ics43432 { + compatible = "invensense,ics43432"; + }; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index d444757..80bf96d 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -110,6 +110,7 @@ ingenic Ingenic Semiconductor innolux Innolux Corporation intel Intel Corporation intercontrol Inter Control Group +invensense InvenSense Inc. isee ISEE 2007 S.L. isil Intersil karo Ka-Ro electronics GmbH |