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/linux/Documentation/devicetree/bindings/sound/
H A Dfsl,imx-audio-es8328.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/fsl,imx-audio-es8328.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Freescale i.MX audio complex with ES8328 codec
10 - Shawn Guo <shawnguo@kernel.org>
11 - Sascha Hauer <s.hauer@pengutronix.de>
14 - $ref: sound-card-common.yaml#
18 const: fsl,imx-audio-es8328
22 description: The user-visible name of this sound complex
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H A Dda7218.txt1 Dialog Semiconductor DA7218 Audio Codec bindings
3 DA7218 is an audio codec with HP detect feature.
8 - compatible : Should be "dlg,da7217" or "dlg,da7218"
9 - reg: Specifies the I2C slave address
11 - VDD-supply: VDD power supply for the device
12 - VDDMIC-supply: VDDMIC power supply for the device
13 - VDDIO-supply: VDDIO power supply for the device
18 - interrupts: IRQ line info for DA7218 chip.
19 (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt for
21 - interrupt-names : Name associated with interrupt line. Should be "wakeup" if
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H A Dti,tlv320dac3100.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Texas Instruments - tlv320aic31xx Codec module
10 - Shenghao Ding <shenghao-ding@ti.com>
16 * SPL, devices with stereo speaker amp
17 * SPR, devices with stereo speaker amp
18 * SPK, devices with mono speaker amp
28 The pins can be used in referring sound node's audio-routing property.
33 - ti,tlv320aic310x # - Generic TLV320AIC31xx with mono speaker amp
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H A Dcs35l36.txt5 - compatible : "cirrus,cs35l36"
7 - reg : the I2C address of the device for I2C
9 - VA-supply, VP-supply : power supplies for the device,
13 - cirrus,boost-ctl-millivolt : Boost Voltage Value. Configures the boost
18 - cirrus,boost-peak-milliamp : Boost-converter peak current limit in mA.
24 - cirrus,boost-ind-nanohenry : Inductor estimation LBST reference value.
32 - cirrus,multi-amp-mode : Boolean to determine if there are more than
33 one amplifier in the system. If more than one it is best to Hi-Z the ASP
36 - cirrus,boost-ctl-select : Boost converter control source selection.
39 0x00 - Control Port Value
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H A Dqcom,apq8016-sbc-sndcard.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/sound/qcom,apq8016-sbc-sndcard.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
11 - Stephan Gerhold <stephan@gerhold.net>
16 - qcom,apq8016-sbc-sndcard
17 - qcom,msm8916-qdsp6-sndcard
21 - description: Microphone I/O mux register address
22 - description: Speaker I/O mux register address
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H A Dcirrus,lochnagar.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Cirrus Logic Lochnagar Audio Development Board
10 - patches@opensource.cirrus.com
14 Smart CODEC and Amp devices. It allows the connection of most Cirrus
15 Logic devices on mini-cards, as well as allowing connection of various
17 Audio system topology, clocking and power can all be controlled through
21 This binding document describes the binding for the audio portion of the
28 - $ref: dai-common.yaml#
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H A Dawinic,aw8738.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Awinic AW8738 Audio Amplifier
10 - Stephan Gerhold <stephan@gerhold.net>
13 The Awinic AW8738 is a simple audio amplifier with different operation modes
14 (set using one-wire pulse control). The mode configures the speaker-guard
18 - $ref: dai-common.yaml#
24 mode-gpios:
26 GPIO used for one-wire pulse control. The pin is typically called SHDN
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/linux/include/sound/
H A Dhda_regmap.h1 /* SPDX-License-Identifier: GPL-2.0 */
3 * HD-audio regmap helpers
13 #define AC_AMP_FAKE_MUTE 0x10 /* fake mute bit set to amp verbs */
32 * snd_hdac_regmap_encode_verb - encode the verb to a pseudo register
42 * snd_hdac_regmap_encode_amp - encode the AMP verb to a pseudo register
57 * snd_hdac_regmap_encode_amp_stereo - encode a pseudo register for stereo AMPs
71 * snd_hdac_regmap_write - Write a verb with caching
76 * For writing an amp value, use snd_hdac_regmap_update_amp().
88 * snd_hda_regmap_update - Update a verb value with caching
94 * For updating an amp value, use snd_hdac_regmap_update_amp().
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H A Dhda_verbs.h1 /* SPDX-License-Identifier: GPL-2.0 */
3 * HD-audio codec verbs
26 AC_WID_AUD_OUT, /* Audio Out */
27 AC_WID_AUD_IN, /* Audio In */
28 AC_WID_AUD_MIX, /* Audio Mixer */
29 AC_WID_AUD_SEL, /* Audio Selector */
59 /* f10-f1a: GPIO */
155 /* Audio Function Group Capabilities */
160 /* Audio Widget Capabilities */
162 #define AC_WCAP_IN_AMP (1<<1) /* AMP-in present */
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/linux/arch/mips/boot/dts/ingenic/
H A Dgcw0.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
5 #include <dt-bindings/clock/ingenic,tcu.h>
7 #include <dt-bindings/gpio/gpio.h>
8 #include <dt-bindings/iio/adc/ingenic,adc.h>
9 #include <dt-bindings/input/input.h>
29 stdout-path = "serial2:57600n8";
33 compatible = "regulator-fixed";
34 regulator-name = "vcc";
36 regulator-min-microvolt = <3300000>;
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H A Drs90.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
6 #include <dt-bindings/gpio/gpio.h>
7 #include <dt-bindings/iio/adc/ingenic,adc.h>
8 #include <dt-bindings/input/linux-event-codes.h>
12 model = "RS-90";
19 reserved-memory {
20 #address-cells = <1>;
21 #size-cells = <1>;
24 vmem: video-memory@1f00000 {
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/linux/arch/arm64/boot/dts/qcom/
H A Dmsm8916-wingtech-wt86528.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 /dts-v1/;
5 #include "msm8916-wingtech-wt865x8.dtsi"
10 chassis-type = "handset";
13 speaker_amp_left: audio-amplifier-left {
16 pinctrl-0 = <&spk_ext_pa_left_default>;
17 pinctrl-names = "default";
19 mode-gpios = <&tlmm 119 GPIO_ACTIVE_HIGH>;
20 sound-name-prefix = "Speaker Amp L";
25 speaker_amp_right: audio-amplifier-right {
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H A Dmsm8916-wingtech-wt88047.dts1 // SPDX-License-Identifier: GPL-2.0-only
6 /dts-v1/;
8 #include "msm8916-pm8916.dtsi"
9 #include "msm8916-modem-qdsp6.dtsi"
11 #include <dt-bindings/gpio/gpio.h>
12 #include <dt-bindings/input/input.h>
13 #include <dt-bindings/leds/common.h>
18 chassis-type = "handset";
27 stdout-path = "serial0";
30 speaker_amp: audio-amplifier {
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H A Dmsm8916-wingtech-wt86518.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 /dts-v1/;
5 #include "msm8916-wingtech-wt865x8.dtsi"
10 chassis-type = "handset";
12 speaker_amp: audio-amplifier {
15 pinctrl-0 = <&spk_ext_pa_default>;
16 pinctrl-names = "default";
18 mode-gpios = <&tlmm 119 GPIO_ACTIVE_HIGH>;
19 sound-name-prefix = "Speaker Amp";
29 vdd-supply = <&pm8916_l6>;
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/linux/sound/soc/codecs/
H A Dcs42l73.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * cs42l73.c -- CS42L73 ALSA Soc Audio driver
25 #include <sound/soc-dapm.h>
47 { 6, 0xF1 }, /* r06 - Power Ctl 1 */
48 { 7, 0xDF }, /* r07 - Power Ctl 2 */
49 { 8, 0x3F }, /* r08 - Power Ctl 3 */
50 { 9, 0x50 }, /* r09 - Charge Pump Freq */
51 { 10, 0x53 }, /* r0A - Output Load MicBias Short Detect */
52 { 11, 0x00 }, /* r0B - DMIC Master Clock Ctl */
53 { 12, 0x00 }, /* r0C - Aux PCM Ctl */
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H A Dtlv320aic26.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Texas Instruments TLV320AIC26 low power audio CODEC
61 /* ---------------------------------------------------------------------
62 * Digital Audio Interface Operations
68 struct snd_soc_component *component = dai->component; in aic26_hw_params()
73 dev_dbg(&aic26->spi->dev, "aic26_hw_params(substream=%p, params=%p)\n", in aic26_hw_params()
75 dev_dbg(&aic26->spi->dev, "rate=%i width=%d\n", params_rate(params), in aic26_hw_params()
89 dev_dbg(&aic26->spi->dev, "bad rate\n"); return -EINVAL; in aic26_hw_params()
99 dev_dbg(&aic26->spi->dev, "bad format\n"); return -EINVAL; in aic26_hw_params()
109 jval = fsref / (aic26->mclk / 2048); in aic26_hw_params()
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H A Drt5616.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * rt5616.c -- RT5616 ALSA SoC audio codec driver
22 #include <sound/soc-dapm.h>
287 static const DECLARE_TLV_DB_SCALE(out_vol_tlv, -4650, 150, 0);
288 static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -65625, 375, 0);
289 static const DECLARE_TLV_DB_SCALE(in_vol_tlv, -3450, 150, 0);
290 static const DECLARE_TLV_DB_SCALE(adc_vol_tlv, -17625, 375, 0);
351 val = snd_soc_component_read(snd_soc_dapm_to_component(source->dapm), RT5616_GLB_CLK); in is_sys_clk_from_pll()
466 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); in rt5616_adc_event()
490 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); in rt5616_charge_pump_event()
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H A Dalc5623.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * alc5623.c -- alc562[123] ALSA Soc Audio driver
8 * Copyright 2010 Arnaud Patard <arnaud.patard@rtp-net.org>
53 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); in amp_mixer_event()
55 /* to power-o in amp_mixer_event()
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H A Dcs35l35.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * cs35l35.h -- CS35L35 ALSA SoC audio driver
31 #define CS35L35_AMP_INP_DRV_CTL 0x14 /* Amp Input Drive Ctl */
35 #define CS35L35_PROTECT_CTL 0x18 /* Amp Gain - Prot Ctl Param */
36 #define CS35L35_AMP_GAIN_AUD_CTL 0x19 /* Amp Serial Port Gain Ctl */
60 #define CS35L35_AUDIN_RXLOC_CTL 0x52 /* Audio Input RX Loc Ctl */
68 #define CS35L35_AUDIN_DEPTH_CTL 0x5A /* Audio Input Depth Ctl */
/linux/arch/arm64/boot/dts/allwinner/
H A Dsun50i-a64-pinetab.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
7 /dts-v1/;
9 #include "sun50i-a64.dtsi"
10 #include "sun50i-a64-cpu-opp.dtsi"
12 #include <dt-bindings/gpio/gpio.h>
13 #include <dt-bindings/input/input.h>
14 #include <dt-bindings/pwm/pwm.h>
18 compatible = "pine64,pinetab", "allwinner,sun50i-a64";
19 chassis-type = "tablet";
27 compatible = "pwm-backlight";
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/linux/arch/arm/boot/dts/ti/omap/
H A Domap3-echo.dts1 // SPDX-License-Identifier: GPL-2.0-only
5 /dts-v1/;
9 #include <dt-bindings/input/input.h>
10 #include <dt-bindings/leds/common.h>
14 compatible = "amazon,omap3-echo", "ti,omap3630", "ti,omap3";
18 cpu0-supply = <&vdd1_reg>;
28 compatible = "regulator-fixed";
29 regulator-name = "vcc5v";
30 regulator-min-microvolt = <5000000>;
31 regulator-max-microvolt = <5000000>;
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/linux/arch/arm/boot/dts/microchip/
H A Dat91-nattis-2-natte-2.dts1 // SPDX-License-Identifier: GPL-2.0+
3 * at91-nattis-2-natte-2.dts - Device Tree file for the Linea/Nattis board
9 /dts-v1/;
10 #include "at91-linea.dtsi"
11 #include "at91-natte.dtsi"
14 model = "Axentia Linea-Nattis v2 Natte v2";
15 compatible = "axentia,nattis-2", "axentia,natte-2", "axentia,linea",
18 gpio-keys {
19 compatible = "gpio-keys";
21 key-wakeup {
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/linux/sound/pci/hda/
H A Dhda_codec.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Universal Interface for Intel High Definition Audio Codec
27 #define codec_in_pm(codec) snd_hdac_is_in_pm(&codec->core)
28 #define hda_codec_is_power_on(codec) snd_hdac_is_power_on(&codec->core)
30 ((codec)->core.power_caps & AC_PWRST_EPSS)
32 ((codec)->core.power_caps & AC_PWRST_CLKSTOP)
35 * Send and receive a verb - passed to exec_verb override for hdac_device
41 struct hda_bus *bus = codec->bus; in codec_exec_verb()
45 return -1; in codec_exec_verb()
49 mutex_lock(&bus->core.cmd_mutex); in codec_exec_verb()
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/linux/drivers/gpu/drm/i915/display/
H A Dintel_lpe_audio.c24 * Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
31 * DOC: LPE Audio integration for HDMI or DP playback
34 * Atom platforms (e.g. valleyview and cherryTrail) integrates a DMA-based
36 * mode is unrelated to the LPE aka SST audio engine, the documentation refers
41 * subsystems, a bridge is setup between the hdmi-lpe-audio and i915:
44 * 3. Create IRQ chip to forward the LPE audio irqs.
45 * the hdmi-lpe-audio driver probes the lpe audio device and creates a new
50 * uninstall the hdmi-lpe-audio driver before uninstalling i915 module,
51 * otherwise we might run into use-after-free issues after i915 removes the
52 * platform device: even though hdmi-lpe-audio driver is released, the modules
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/linux/Documentation/sound/soc/
H A Doverview.rst6 provide better ALSA support for embedded system-on-chip processors (e.g.
7 pxa2xx, au1x00, iMX, etc) and portable audio codecs. Prior to the ASoC
8 subsystem there was some support in the kernel for SoC audio, however it
9 had some limitations:-
12 CPU. This is not ideal and leads to code duplication - for example,
15 * There was no standard method to signal user initiated audio events (e.g.
18 machine specific code to re-route audio, enable amps, etc., after such an
22 recording) audio. This is fine for a PC, but tends to waste a lot of
31 features :-
36 * Easy I2S/PCM audio interface setup between codec and SoC. Each SoC
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