From: Ricard Wanderlof Date: Thu, 27 Aug 2015 09:35:20 +0000 (+0200) Subject: ASoC: ics43432: Add codec driver for InvenSense ICS-43432 X-Git-Tag: omap-for-v4.3/fixes-rc1~91^2~7^2~13^4^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3b7ce99748f0d006f9d1aa85709872e7b46787f7;p=pandora-kernel.git 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 Signed-off-by: Mark Brown --- diff --git a/Documentation/devicetree/bindings/sound/ics43432.txt b/Documentation/devicetree/bindings/sound/ics43432.txt new file mode 100644 index 000000000000..b02e3a6c0fef --- /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"; + }; Reading git-diff-tree failed