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/Linux-v5.4/Documentation/devicetree/bindings/sound/
Dnokia,rx51.txt8 - nokia,headphone-amplifier: phandle for the TPA6130A2 node
12 - speaker-amplifier-gpios: GPIO for speaker amplifier
21 nokia,headphone-amplifier = <&tpa6130a2>;
26 speaker-amplifier-gpios = <&twl_gpio 7 GPIO_ACTIVE_HIGH>;
Dsimple-amplifier.txt4 - compatible : "dioo,dio2125" or "simple-audio-amplifier"
7 - enable-gpios : the gpio connected to the enable pin of the simple amplifier
13 amp: analog-amplifier {
14 compatible = "simple-audio-amplifier";
Dname-prefix.txt14 amp0: analog-amplifier@0 {
15 compatible = "simple-audio-amplifier";
20 amp1: analog-amplifier@1 {
21 compatible = "simple-audio-amplifier";
Dsamsung,tm2-audio.txt14 - audio-amplifier : the phandle of the MAX98504 amplifier
31 audio-amplifier = <&max98504>;
Dsirf-audio.txt10 headphone amplifier.
12 speaker amplifier.
Dadi,ssm2305.txt11 ssm2305: analog-amplifier {
Dtfa9879.txt1 NXP TFA9879 class-D audio amplifier
Dssm4567.txt1 Analog Devices SSM4567 audio amplifier
Dmaxim,max9759.txt12 max9759: analog-amplifier {
Dssm2518.txt1 SSM2518 audio amplifier
Dti,tas6424.txt1 Texas Instruments TAS6424 Quad-Channel Audio amplifier
Dcs35l33.txt15 - reset-gpios : gpio used to reset the amplifier
29 begins to when the amplifier disables the PWM outputs. If this property
49 controls the amplifier supplies.
Dtas5720.txt1 Texas Instruments TAS5720 Mono Audio amplifier
/Linux-v5.4/drivers/input/misc/
Dpwm-beeper.c21 struct regulator *amplifier; member
47 error = regulator_enable(beeper->amplifier); in pwm_beeper_on()
62 regulator_disable(beeper->amplifier); in pwm_beeper_off()
153 beeper->amplifier = devm_regulator_get(dev, "amp"); in pwm_beeper_probe()
154 if (IS_ERR(beeper->amplifier)) { in pwm_beeper_probe()
155 error = PTR_ERR(beeper->amplifier); in pwm_beeper_probe()
/Linux-v5.4/Documentation/devicetree/bindings/iio/afe/
Dcurrent-sense-amplifier.txt5 amplifier, the interesting measurement is almost always the current
10 - compatible : "current-sense-amplifier"
21 compatible = "current-sense-amplifier";
/Linux-v5.4/Documentation/devicetree/bindings/iio/adc/
Dmax9611.txt1 * Maxim max9611/max9612 current sense amplifier with 12-bits ADC interface
3 Maxim max9611/max9612 is an high-side current sense amplifier with integrated
24 This device node describes a current sense amplifier sitting on I2c4 bus
Dads1015.txt18 - pga is the programmable gain amplifier (values are full scale)
64 - ti,gain : the programmable gain amplifier setting
/Linux-v5.4/drivers/platform/x86/
Dalienware-wmi.c55 u8 amplifier; member
65 .amplifier = 0,
72 .amplifier = 0,
79 .amplifier = 0,
86 .amplifier = 1,
93 .amplifier = 0,
100 .amplifier = 0,
107 .amplifier = 1,
679 if (quirks->amplifier > 0) in remove_amplifier()
809 if (quirks->amplifier > 0) { in alienware_wmi_init()
/Linux-v5.4/Documentation/devicetree/bindings/display/ti/
Dti,opa362.txt1 OPA362 analog video amplifier
15 enable-gpios = <&gpio1 23 0>; /* GPIO to enable video out amplifier */
/Linux-v5.4/Documentation/devicetree/bindings/input/
Dpwm-beeper.txt10 - amp-supply: phandle to a regulator that acts as an amplifier for the beeper
15 beeper_amp: amplifier {
/Linux-v5.4/drivers/gpu/drm/omapdrm/displays/
DKconfig5 tristate "OPA362 external analog amplifier"
7 Driver for OPA362 external analog TV amplifier controlled
/Linux-v5.4/drivers/video/fbdev/omap2/omapfb/displays/
DKconfig6 tristate "OPA362 external analog amplifier"
8 Driver for OPA362 external analog TV amplifier controlled
/Linux-v5.4/Documentation/media/uapi/v4l/
Dext-ctrls-rf-tuner.rst66 The RF amplifier is the very first amplifier on the receiver signal
74 LNA (low noise amplifier) gain is first gain stage on the RF tuner
/Linux-v5.4/sound/pci/cs46xx/
Dcs46xx_lib.c2924 chip->amplifier_ctrl(chip, -chip->amplifier); /* force to off */ in snd_cs46xx_free()
2935 chip->active_ctrl(chip, -chip->amplifier); in snd_cs46xx_free()
3443 int old = chip->amplifier; in amp_voyetra()
3447 chip->amplifier += change; in amp_voyetra()
3451 if (chip->amplifier) { in amp_voyetra()
3467 if (chip->amplifier && !old) { in amp_voyetra()
3486 int old = chip->amplifier; in amp_hercules()
3490 chip->amplifier += change; in amp_hercules()
3491 if (chip->amplifier && !old) { in amp_hercules()
3498 } else if (old && !chip->amplifier) { in amp_hercules()
[all …]
/Linux-v5.4/drivers/iio/amplifiers/
DKconfig20 ADL5240 Digitally controlled variable gain amplifier (VGA)

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