tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1Device-Tree bindings for Digital microphone (DMIC) codec
2
3This device support generic PDM digital microphone.
4
5Required properties:
6 - compatible: should be "dmic-codec".
7
8Optional properties:
9 - dmicen-gpios: GPIO specifier for dmic to control start and stop
10 - num-channels: Number of microphones on this DAI
11 - wakeup-delay-ms: Delay (in ms) after enabling the DMIC
12 - modeswitch-delay-ms: Delay (in ms) to complete DMIC mode switch
13
14Example node:
15
16 dmic_codec: dmic@0 {
17 compatible = "dmic-codec";
18 dmicen-gpios = <&gpio4 3 GPIO_ACTIVE_HIGH>;
19 num-channels = <1>;
20 wakeup-delay-ms <50>;
21 modeswitch-delay-ms <35>;
22 };