xref: /linux/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt (revision cf40a76e7d5874bb25f4404eecc58a2e033af885) 
1ROCKCHIP with MAX98357A/RT5514/DA7219 codecs on GRU boards
2
3Required properties:
4- compatible: "rockchip,rk3399-gru-sound"
5- rockchip,cpu: The phandle of the Rockchip I2S controller that's
6  connected to the codecs
7- rockchip,codec: The phandle of the audio codecs
8
9Optional properties:
10- dmic-wakeup-delay-ms : specify delay time (ms) for DMIC ready.
11  If this option is specified, which means it's required dmic need
12  delay for DMIC to ready so that rt5514 can avoid recording before
13  DMIC send valid data
14
15Example:
16
17sound {
18	compatible = "rockchip,rk3399-gru-sound";
19	rockchip,cpu = <&i2s0>;
20	rockchip,codec = <&max98357a &rt5514 &da7219>;
21	dmic-wakeup-delay-ms = <20>;
22};
23