xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593SmuzhiyunROCKCHIP with MAX98357A/RT5514/DA7219 codecs on GRU boards
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunRequired properties:
4*4882a593Smuzhiyun- compatible: "rockchip,rk3399-gru-sound"
5*4882a593Smuzhiyun- rockchip,cpu: The phandle of the Rockchip I2S controller that's
6*4882a593Smuzhiyun  connected to the codecs
7*4882a593Smuzhiyun- rockchip,codec: The phandle of the audio codecs
8*4882a593Smuzhiyun
9*4882a593SmuzhiyunOptional properties:
10*4882a593Smuzhiyun- dmic-wakeup-delay-ms : specify delay time (ms) for DMIC ready.
11*4882a593Smuzhiyun  If this option is specified, which means it's required dmic need
12*4882a593Smuzhiyun  delay for DMIC to ready so that rt5514 can avoid recording before
13*4882a593Smuzhiyun  DMIC send valid data
14*4882a593Smuzhiyun
15*4882a593SmuzhiyunExample:
16*4882a593Smuzhiyun
17*4882a593Smuzhiyunsound {
18*4882a593Smuzhiyun	compatible = "rockchip,rk3399-gru-sound";
19*4882a593Smuzhiyun	rockchip,cpu = <&i2s0>;
20*4882a593Smuzhiyun	rockchip,codec = <&max98357a &rt5514 &da7219>;
21*4882a593Smuzhiyun	dmic-wakeup-delay-ms = <20>;
22*4882a593Smuzhiyun};
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