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Diffstat (limited to 'Documentation/devicetree/bindings/sound/ics43432.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/ics43432.txt | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/ics43432.txt b/Documentation/devicetree/bindings/sound/ics43432.txt new file mode 100644 index 000000000..e6f05f2f6 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/ics43432.txt @@ -0,0 +1,19 @@ +Invensense ICS-43432-compatible 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: should be one of the following. + "invensense,ics43432": For the Invensense ICS43432 + "cui,cmm-4030d-261": For the CUI CMM-4030D-261-I2S-TR + +Example: + + ics43432: ics43432 { + compatible = "invensense,ics43432"; + }; |