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/openbmc/linux/sound/soc/codecs/
H A DKconfig632 tristate "Awinic AW8738 Audio Amplifier"
635 Enable support for the Awinic AW8738 audio amplifier (or similar).
654 digital Smart K audio amplifier with an integrated 10V
667 digital Smart K audio amplifier. The output voltage of
674 Enable support for ROHM BD28623MUV Class D speaker amplifier.
755 Enable support for Cirrus Logic CS35L45 smart speaker amplifier
765 Enable support for Cirrus Logic CS35L45 smart speaker amplifier
782 Enable support for Cirrus Logic CS35L56 boosted amplifier with I2C control
792 Enable support for Cirrus Logic CS35L56 boosted amplifier with SPI control
801 Enable support for Cirrus Logic CS35L56 boosted amplifier with SoundWire control
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H A Dsimple-amplifier.c12 #define DRV_NAME "simple-amplifier"
92 { .compatible = "simple-audio-amplifier", },
108 MODULE_DESCRIPTION("ASoC Simple Audio Amplifier driver");
/openbmc/linux/Documentation/devicetree/bindings/iio/afe/
H A Dcurrent-sense-amplifier.yaml4 $id: http://devicetree.org/schemas/iio/afe/current-sense-amplifier.yaml#
7 title: Current Sense Amplifier
14 amplifier, the interesting measurement is almost always the current
20 const: current-sense-amplifier
32 description: Amplifier gain multiplier. The default is <1>.
36 description: Amplifier gain divider. The default is <1>.
48 compatible = "current-sense-amplifier";
/openbmc/linux/Documentation/devicetree/bindings/sound/
H A Dsimple-audio-amplifier.yaml4 $id: http://devicetree.org/schemas/sound/simple-audio-amplifier.yaml#
7 title: Simple Audio Amplifier
19 - simple-audio-amplifier
39 analog-amplifier {
40 compatible = "simple-audio-amplifier";
H A 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>;
H A Dcs35l36.txt1 CS35L36 Speaker Amplifier
33 one amplifier in the system. If more than one it is best to Hi-Z the ASP
43 - cirrus,amp-pcm-inv : Boolean to determine Amplifier will invert incoming
46 - cirrus,imon-pol-inv : Boolean to determine Amplifier will invert the
49 - cirrus,vmon-pol-inv : Boolean to determine Amplifier will invert the
73 - cirrus,classh-weak-fet-thld-millivolt : Weak-FET amplifier drive threshold.
77 - cirrus,temp-warn-threshold : Amplifier overtemperature warning threshold.
H A Dawinic,aw8738.yaml7 title: Awinic AW8738 Audio Amplifier
13 The Awinic AW8738 is a simple audio amplifier with different operation modes
15 function (primarily the power limit for the amplifier).
49 audio-amplifier {
H A Dsamsung,tm2.yaml20 audio-amplifier:
21 description: Phandle to the MAX98504 amplifier.
54 - audio-amplifier
70 audio-amplifier = <&max98504>;
H A Dadi,max98396.yaml7 title: Analog Devices MAX98396 Speaker Amplifier
13 The MAX98396 is a mono Class-DG speaker amplifier with I/V sense.
85 speaker amplifier. Once a data error is detected, the data monitor
99 speaker amplifier. Once a data error is detected, the data monitor
130 max98396: amplifier@39 {
H A Dirondevice,sma1303.yaml7 title: Iron Device SMA1303 Audio Amplifier
13 SMA1303 digital class-D audio amplifier
43 amplifier@1e {
H A Dmaxim,max98357a.yaml7 title: Maxim Integrated MAX98357A/MAX98360A amplifier
14 input Class D amplifier.
48 amplifier {
H A Dtas5805m.yaml7 title: TAS5805M audio amplifier
13 The TAS5805M is a class D audio amplifier with a built-in DSP.
23 I2C address of the amplifier. See the datasheet for possible values.
H A Dqcom,wsa881x.yaml7 title: Qualcomm WSA8810/WSA8815 Class-D Smart Speaker Amplifier
13 WSA8810 is a class-D smart speaker amplifier and WSA8815
14 is a high-output power class-D smart speaker amplifier.
H A Dcirrus,cs35l41.yaml7 title: Cirrus Logic CS35L41 Speaker Amplifier
13 CS35L41 is a boosted mono Class D amplifier with DSP
71 configuration for SDOUT pin of amplifier.
89 communicating on the MDSYNC bus. The active amplifier controls the boost
92 compatible with External boost. Active amplifier requires
H A Dmaxim,max98504.yaml7 title: Maxim Integrated MAX98504 class D mono speaker amplifier
13 Maxim Integrated MAX98504 speaker amplifier supports I2C control interface
79 amplifier@31 {
H A Dadi,max98388.yaml7 title: Analog Devices MAX98388 Speaker Amplifier
13 The MAX98388 is a mono Class-D speaker amplifier with I/V feedback.
70 max98388: amplifier@39 {
H A Datmel,sama5d2-classd.yaml8 title: Atmel ClassD Amplifier
16 The Audio Class D Amplifier (CLASSD) is a digital input, Pulse Width
17 Modulated (PWM) output stereo Class D amplifier.
/openbmc/linux/drivers/iio/amplifiers/
H A DKconfig18 AD8366 Dual-Digital Variable Gain Amplifier (VGA)
19 ADA4961 BiCMOS RF Digital Gain Amplifier (DGA)
20 ADL5240 Digitally controlled variable gain amplifier (VGA)
28 tristate "Analog Devices ADA4250 Instrumentation Amplifier"
33 SPI Amplifier's support. The driver provides direct access via
/openbmc/linux/sound/soc/sunxi/
H A Dsun4i-codec.c682 SOC_SINGLE_TLV("Power Amplifier Volume", SUN4I_CODEC_DAC_ACTL,
706 SOC_SINGLE_TLV("Power Amplifier Volume", SUN4I_CODEC_DAC_ACTL,
800 SND_SOC_DAPM_PGA("MIC1 Pre-Amplifier", SUN4I_CODEC_ADC_ACTL,
802 SND_SOC_DAPM_PGA("MIC2 Pre-Amplifier", SUN4I_CODEC_ADC_ACTL,
805 /* Power Amplifier */
806 SND_SOC_DAPM_MIXER("Power Amplifier", SUN4I_CODEC_ADC_ACTL,
810 SND_SOC_DAPM_SWITCH("Power Amplifier Mute", SND_SOC_NOPM, 0, 0,
839 { "Right Mixer", "Mic1 Playback Switch", "MIC1 Pre-Amplifier" },
840 { "Right Mixer", "Mic2 Playback Switch", "MIC2 Pre-Amplifier" },
847 { "Left Mixer", "Mic1 Playback Switch", "MIC1 Pre-Amplifier" },
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H A Dsun50i-codec-analog.c362 SND_SOC_DAPM_PGA("Mic1 Amplifier", SUN50I_ADDA_MIC1_CTRL,
374 SND_SOC_DAPM_PGA("Mic2 Amplifier", SUN50I_ADDA_MIC2_CTRL,
399 { "Left Mixer", "Mic1 Playback Switch", "Mic1 Amplifier" },
400 { "Left Mixer", "Mic2 Playback Switch", "Mic2 Amplifier" },
406 { "Right Mixer", "Mic1 Playback Switch", "Mic1 Amplifier" },
407 { "Right Mixer", "Mic2 Playback Switch", "Mic2 Amplifier" },
413 { "Left ADC Mixer", "Mic1 Capture Switch", "Mic1 Amplifier" },
414 { "Left ADC Mixer", "Mic2 Capture Switch", "Mic2 Amplifier" },
420 { "Right ADC Mixer", "Mic1 Capture Switch", "Mic1 Amplifier" },
421 { "Right ADC Mixer", "Mic2 Capture Switch", "Mic2 Amplifier" },
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H A Dsun8i-codec-analog.c243 SND_SOC_DAPM_PGA("Mic1 Amplifier", SUN8I_ADDA_MIC1G_MICBIAS_CTRL,
287 { "Mic1 Amplifier", NULL, "MIC1"},
294 { "Left Mixer", "Mic1 Playback Switch", "Mic1 Amplifier" },
299 { "Right Mixer", "Mic1 Playback Switch", "Mic1 Amplifier" },
304 { "Left ADC Mixer", "Mic1 Capture Switch", "Mic1 Amplifier" },
309 { "Right ADC Mixer", "Mic1 Capture Switch", "Mic1 Amplifier" },
354 * Need a delay to have the amplifier up. 700ms seems the best in sun8i_headphone_amp_event()
355 * compromise between the time to let the amplifier up and the in sun8i_headphone_amp_event()
618 SND_SOC_DAPM_PGA("Mic2 Amplifier", SUN8I_ADDA_MIC2G_CTRL,
623 { "Mic2 Amplifier", NULL, "MIC2"},
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/openbmc/linux/include/media/i2c/
H A Dm52790.h38 /* Enable 6dB amplifier for composite out */
41 /* Enable 6dB amplifier for component out */
54 /* Enable 6dB amplifier for composite out */
57 /* Enable 6dB amplifier for component out */
/openbmc/linux/drivers/input/misc/
H A 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()
148 beeper->amplifier = devm_regulator_get(dev, "amp"); in pwm_beeper_probe()
149 if (IS_ERR(beeper->amplifier)) in pwm_beeper_probe()
150 return dev_err_probe(dev, PTR_ERR(beeper->amplifier), in pwm_beeper_probe()
/openbmc/linux/Documentation/devicetree/bindings/iio/amplifiers/
H A Dadi,ada4250.yaml7 title: ADA4250 Programmable Gain Instrumentation Amplifier
13 Precision Low Power, 110kHz, 26uA, Programmable Gain Instrumentation Amplifier.
45 amplifier@0 {
/openbmc/linux/drivers/platform/x86/dell/
H A 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,
634 * Alienware GFX amplifier support
655 pr_err("alienware-wmi: unknown amplifier cable status: %d\n", status); in show_amplifier_status()
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