kernel/arch/arm/boot/dts/rk3308-voice-module-amic-mainboard-v10-aarch32.dts
.. .. @@ -14,6 +14,8 @@ 14 14 }; 15 15 16 16 &acodec { 17 + rockchip,micbias1;18 + rockchip,micbias2;17 19 /* The grp2/3 (ADC5-8) keeps enabled always for VAD */ 18 20 rockchip,en-always-grps = <2 3>; 19 21 };