bindings/sound/nau8825.txt

1 Nuvoton NAU8825 audio codec
6   - compatible : Must be "nuvoton,nau8825"
11   - nuvoton,jkdet-enable: Enable jack detection via JKDET pin.
12   - nuvoton,jkdet-pull-enable: Enable JKDET pin pull. If set - pin pull enabled,
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,sar-threshold-num: Number of buttons supported
34 …- nuvoton,sar-threshold: Impedance threshold for each button. Array that contains up to 8 buttons …
36 …where MICBIAS is configured by 'nuvoton,micbias-voltage', SAR_VOLTAGE is configured by 'nuvoton,sa…
39   - nuvoton,sar-hysteresis: Button impedance measurement hysteresis.
41   - nuvoton,sar-voltage: Reference voltage for button impedance measurement.
51   - nuvoton,sar-compare-time: SAR compare time
57   - nuvoton,sar-sampling-time: SAR sampling time
63   - nuvoton,short-key-debounce: Button short key press debounce time.
69   - nuvoton,jack-insert-debounce: number from 0 to 7 that sets debounce time to 2^(n+2) ms
70   - nuvoton,jack-eject-debounce: number from 0 to 7 that sets debounce time to 2^(n+2) ms
72   - nuvoton,crosstalk-enable: make crosstalk function enable if set.
81       compatible = "nuvoton,nau8825";
85       nuvoton,jkdet-enable;
86       nuvoton,jkdet-pull-enable;
87       nuvoton,jkdet-pull-up;
88       nuvoton,jkdet-polarity = <GPIO_ACTIVE_LOW>;
89       nuvoton,vref-impedance = <2>;
90       nuvoton,micbias-voltage = <6>;
92       nuvoton,sar-threshold-num = <4>;
93       nuvoton,sar-threshold = <0xc 0x1e 0x38 0x60>;
94       nuvoton,sar-hysteresis = <1>;
95       nuvoton,sar-voltage = <0>;
96       nuvoton,sar-compare-time = <0>;
97       nuvoton,sar-sampling-time = <0>;
98       nuvoton,short-key-debounce = <2>;
99       nuvoton,jack-insert-debounce = <7>;
100       nuvoton,jack-eject-debounce = <7>;
101       nuvoton,crosstalk-enable;