1 Nuvoton NAU88L21 audio codec
3 This device supports I2C only.
6 - compatible : Must be "nuvoton,nau8821"
8 - reg : the I2C address of the device. This is either 0x1B (CSB=0) or 0x54 (CSB=1).
11 - nuvoton,jkdet-enable: Enable jack detection via JKDET pin.
12 - nuvoton,jkdet-pull-enable: Enable JKDET pin pull. If set - pin pull enabled,
13 otherwise pin in high impedance state.
14 - nuvoton,jkdet-pull-up: Pull-up JKDET pin. If set then JKDET pin is pull up, otherwise pull down.
15 - nuvoton,jkdet-polarity: JKDET pin polarity. 0 - active high, 1 - active low.
17 - nuvoton,vref-impedance: VREF Impedance selection
23 - nuvoton,micbias-voltage: Micbias voltage level.
33 - nuvoton,jack-insert-debounce: number from 0 to 7 that sets debounce time to 2^(n+2) ms
34 - nuvoton,jack-eject-debounce: number from 0 to 7 that sets debounce time to 2^(n+2) ms
36 - nuvoton,dmic-clk-threshold: the ADC threshold of DMIC clock.
37 - nuvoton,key_enable: Headset button detection switch.
42 compatible = "nuvoton,nau8821";
44 interrupt-parent = <&gpio>;
45 interrupts = <23 IRQ_TYPE_LEVEL_LOW>;
47 nuvoton,jkdet-pull-enable;
48 nuvoton,jkdet-pull-up;
49 nuvoton,jkdet-polarity = <GPIO_ACTIVE_LOW>;
50 nuvoton,vref-impedance = <2>;
51 nuvoton,micbias-voltage = <6>;
52 nuvoton,jack-insert-debounce = <7>;
53 nuvoton,jack-eject-debounce = <7>;
54 nuvoton,dmic-clk-threshold = 3072000;