xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/sound/ics43432.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunInvensense ICS-43432 MEMS microphone with I2S output.
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunThere are no software configuration options for this device, indeed, the only
4*4882a593Smuzhiyunhost connection is the I2S interface. Apart from requirements on clock
5*4882a593Smuzhiyunfrequency (460 kHz to 3.379 MHz according to the data sheet) there must be
6*4882a593Smuzhiyun64 clock cycles in each stereo output frame; 24 of the 32 available bits
7*4882a593Smuzhiyuncontain audio data. A hardware pin determines if the device outputs data
8*4882a593Smuzhiyunon the left or right channel of the I2S frame.
9*4882a593Smuzhiyun
10*4882a593SmuzhiyunRequired properties:
11*4882a593Smuzhiyun  - compatible : Must be "invensense,ics43432"
12*4882a593Smuzhiyun
13*4882a593SmuzhiyunExample:
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun	ics43432: ics43432 {
16*4882a593Smuzhiyun		compatible = "invensense,ics43432";
17*4882a593Smuzhiyun	};
18