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/openbmc/linux/Documentation/devicetree/bindings/sound/
H A Dtlv320aic31xx.txt26 - ai31xx-micbias-vg - MicBias Voltage setting
27 1 or MICBIAS_2_0V - MICBIAS output is powered to 2.0V
28 2 or MICBIAS_2_5V - MICBIAS output is powered to 2.5V
29 3 or MICBIAS_AVDD - MICBIAS output is connected to AVDD
31 micbias is set to 2.0V.
48 * MICBIAS
67 ai31xx-micbias-vg = <MICBIAS_OFF>;
H A Dsamsung,aries-wm8994.yaml64 main-micbias-supply:
65 description: Supply for the micbias on the main mic
67 headset-micbias-supply:
68 description: Supply for the micbias on the headset mic
84 description: IO channel to read micbias voltage for headset detection
95 - main-micbias-supply
96 - headset-micbias-supply
114 main-micbias-supply = <&main_micbias_reg>;
115 headset-micbias-supply = <&headset_micbias_reg>;
H A Dti,tlv320aic3x.yaml75 ai3x-micbias-vg:
76 description: MicBias required voltage. If node is omitted then MicBias is powered down.
80 description: MICBIAS output is powered to 2.0V.
82 description: MICBIAS output is powered to 2.5V.
84 description: MICBIAS output is connected to AVDD.
H A Dsgtl5000.yaml42 micbias-resistor-k-ohms:
45 mentioned or if the value is unknown, then micbias resistor is set to
49 micbias-voltage-m-volts:
107 micbias-resistor-k-ohms = <2>;
108 micbias-voltage-m-volts = <2250>;
H A Dnuvoton,nau8824.yaml49 nuvoton,micbias-voltage:
52 Micbias voltage level.
77 SAR = 255 * MICBIAS / SAR_VOLTAGE * R / (2000 + R) where MICBIAS is
78 configured by 'nuvoton,micbias-voltage', SAR_VOLTAGE is configured by
171 nuvoton,micbias-voltage = <6>;
H A Dnuvoton,nau8825.yaml63 nuvoton,micbias-voltage:
66 Micbias voltage level.
91 SAR = 255 * MICBIAS / SAR_VOLTAGE * R / (2000 + R) where MICBIAS is
92 configured by 'nuvoton,micbias-voltage', SAR_VOLTAGE is configured by
223 nuvoton,micbias-voltage = <6>;
H A Dqcom,pm8916-wcd-analog-codec.yaml48 vdd-micbias-supply:
49 description: micbias supply
63 headset when MBHC is powered from micbias.
67 qcom,micbias-lvl:
150 vdd-micbias-supply = <&pm8916_l13>;
H A Dcs42l52.txt29 - cirrus,micbias-lvl: Set the output voltage level on the MICBIAS Pin
45 cirrus,micbias-lvl = <5>;
H A Dmaxim,max98090.yaml15 HPL, HPR, SPKL, SPKR, RCVL, RCVR, MICBIAS
46 maxim,micbias:
51 Micbias voltage applied to the analog mic, valid voltages value are:
H A Dcs42l56.txt30 - cirrus,micbias-lvl: Set the output voltage level on the MICBIAS Pin.
61 cirrus,micbias-lvl = <5>;
H A Dnvidia,tegra-audio-max9808x.yaml58 - MICBIAS
79 "MIC1", "MICBIAS",
80 "MICBIAS", "Internal Mic 1",
H A Dadi,adau1977.yaml41 adi,micbias:
43 Configures the voltage setting for the MICBIAS pin.
76 adi,micbias = <3>;
H A Dqcom,wcd9335.yaml64 vdd-micbias-supply:
65 description: micbias supply
115 vdd-micbias-supply: false
H A Dnuvoton,nau8821.yaml51 nuvoton,micbias-voltage:
52 description: MICBIAS output level select.
125 nuvoton,micbias-voltage = <6>;
H A Ddialog,da7219.yaml70 dlg,micbias-lvl:
95 dlg,micbias-pulse-lvl:
101 dlg,micbias-pulse-time:
217 dlg,micbias-lvl = <2600>;
H A Datmel-wm8904.txt23 * MICBIAS
50 "Mic", "MICBIAS",
H A Dcs53l30.txt20 - cirrus,micbias-lvl : Set the output voltage level on the MICBIAS Pin.
H A Drt5651.txt31 u32, micbias over-current detection threshold in µA, valid values are
35 u32, micbias over-current detection scale-factor, valid values are:
/openbmc/linux/sound/soc/codecs/
H A Dwcd-mbhc-v2.c106 static void wcd_program_btn_threshold(const struct wcd_mbhc *mbhc, bool micbias) in wcd_program_btn_threshold() argument
112 mbhc->cfg->num_btn, micbias); in wcd_program_btn_threshold()
120 * Some codecs handle micbias/pullup enablement in codec in wcd_mbhc_curr_micbias_control()
121 * drivers itself and micbias is not needed for regular in wcd_mbhc_curr_micbias_control()
138 /* Disable PULL_UP_EN & enable MICBIAS */ in wcd_mbhc_curr_micbias_control()
140 /* Program Button threshold registers as per MICBIAS */ in wcd_mbhc_curr_micbias_control()
147 /* Program Button threshold registers as per MICBIAS */ in wcd_mbhc_curr_micbias_control()
176 /* MICBIAS usage change */ in wcd_mbhc_event_notify()
201 /* MICBIAS usage change */ in wcd_mbhc_event_notify()
222 /* check if micbias is enabled */ in wcd_mbhc_event_notify()
[all …]
/openbmc/linux/include/dt-bindings/sound/
H A Dtlv320adc3xxx.h23 #define ADC3XXX_MICBIAS_OFF 0 /* Micbias pin powered off */
24 #define ADC3XXX_MICBIAS_2_0V 1 /* Micbias pin set to 2.0V */
25 #define ADC3XXX_MICBIAS_2_5V 2 /* Micbias pin set to 2.5V */
26 #define ADC3XXX_MICBIAS_AVDD 3 /* Use AVDD voltage for micbias pin */
/openbmc/linux/include/sound/
H A Dda9055.h23 /* Selects which of the two MicBias pins acts as the bias source */
25 /* Selects the micbias voltage */
26 enum da9055_micbias_voltage micbias; member
H A Dwm2200.h54 /** MICBIAS configurations */
55 struct wm2200_micbias micbias[WM2200_MAX_MICBIAS]; member
/openbmc/linux/Documentation/devicetree/bindings/extcon/
H A Dwlf,arizona.yaml64 Time allowed for MICBIAS to startup prior to performing microphone
89 wlf,micd-force-micbias:
91 Force MICBIAS continuously on during microphone detection.
108 The second cell represents the MICBIAS to be used. Zero
/openbmc/linux/Documentation/devicetree/bindings/mfd/
H A Dcirrus,lochnagar.yaml188 cirrus,micbias-input:
190 A property selecting which of the CODEC minicard micbias outputs
214 cirrus,micbias-input:
216 A property selecting which of the CODEC minicard micbias outputs
341 cirrus,micbias-input = <3>;
/openbmc/linux/include/linux/mfd/arizona/
H A Dpdata.h147 /** Force MICBIAS on for mic detect */
161 /** MICBIAS configurations */
162 struct arizona_micbias micbias[ARIZONA_MAX_MICBIAS]; member

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