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864 lines
26 KiB
864 lines
26 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* es8316.c -- es8316 ALSA SoC audio driver |
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* Copyright Everest Semiconductor Co.,Ltd |
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* |
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* Authors: David Yang <[email protected]>, |
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* Daniel Drake <[email protected]> |
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*/ |
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|
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#include <linux/module.h> |
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#include <linux/acpi.h> |
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#include <linux/clk.h> |
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#include <linux/delay.h> |
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#include <linux/i2c.h> |
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#include <linux/mod_devicetable.h> |
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#include <linux/mutex.h> |
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#include <linux/regmap.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <sound/soc.h> |
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#include <sound/soc-dapm.h> |
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#include <sound/tlv.h> |
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#include <sound/jack.h> |
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#include "es8316.h" |
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|
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/* In slave mode at single speed, the codec is documented as accepting 5 |
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* MCLK/LRCK ratios, but we also add ratio 400, which is commonly used on |
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* Intel Cherry Trail platforms (19.2MHz MCLK, 48kHz LRCK). |
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*/ |
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#define NR_SUPPORTED_MCLK_LRCK_RATIOS 6 |
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static const unsigned int supported_mclk_lrck_ratios[] = { |
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256, 384, 400, 512, 768, 1024 |
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}; |
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struct es8316_priv { |
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struct mutex lock; |
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struct clk *mclk; |
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struct regmap *regmap; |
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struct snd_soc_component *component; |
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struct snd_soc_jack *jack; |
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int irq; |
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unsigned int sysclk; |
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unsigned int allowed_rates[NR_SUPPORTED_MCLK_LRCK_RATIOS]; |
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struct snd_pcm_hw_constraint_list sysclk_constraints; |
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bool jd_inverted; |
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}; |
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|
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/* |
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* ES8316 controls |
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*/ |
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static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(dac_vol_tlv, -9600, 50, 1); |
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static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(adc_vol_tlv, -9600, 50, 1); |
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static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_max_gain_tlv, -650, 150, 0); |
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static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_min_gain_tlv, -1200, 150, 0); |
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static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_target_tlv, -1650, 150, 0); |
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static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(hpmixer_gain_tlv, |
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0, 4, TLV_DB_SCALE_ITEM(-1200, 150, 0), |
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8, 11, TLV_DB_SCALE_ITEM(-450, 150, 0), |
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); |
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static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(adc_pga_gain_tlv, |
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0, 0, TLV_DB_SCALE_ITEM(-350, 0, 0), |
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1, 1, TLV_DB_SCALE_ITEM(0, 0, 0), |
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2, 2, TLV_DB_SCALE_ITEM(250, 0, 0), |
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3, 3, TLV_DB_SCALE_ITEM(450, 0, 0), |
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4, 7, TLV_DB_SCALE_ITEM(700, 300, 0), |
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8, 10, TLV_DB_SCALE_ITEM(1800, 300, 0), |
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); |
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static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(hpout_vol_tlv, |
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0, 0, TLV_DB_SCALE_ITEM(-4800, 0, 0), |
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1, 3, TLV_DB_SCALE_ITEM(-2400, 1200, 0), |
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); |
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static const char * const ng_type_txt[] = |
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{ "Constant PGA Gain", "Mute ADC Output" }; |
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static const struct soc_enum ng_type = |
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SOC_ENUM_SINGLE(ES8316_ADC_ALC_NG, 6, 2, ng_type_txt); |
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static const char * const adcpol_txt[] = { "Normal", "Invert" }; |
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static const struct soc_enum adcpol = |
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SOC_ENUM_SINGLE(ES8316_ADC_MUTE, 1, 2, adcpol_txt); |
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static const char *const dacpol_txt[] = |
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{ "Normal", "R Invert", "L Invert", "L + R Invert" }; |
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static const struct soc_enum dacpol = |
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SOC_ENUM_SINGLE(ES8316_DAC_SET1, 0, 4, dacpol_txt); |
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static const struct snd_kcontrol_new es8316_snd_controls[] = { |
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SOC_DOUBLE_TLV("Headphone Playback Volume", ES8316_CPHP_ICAL_VOL, |
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4, 0, 3, 1, hpout_vol_tlv), |
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SOC_DOUBLE_TLV("Headphone Mixer Volume", ES8316_HPMIX_VOL, |
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4, 0, 11, 0, hpmixer_gain_tlv), |
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SOC_ENUM("Playback Polarity", dacpol), |
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SOC_DOUBLE_R_TLV("DAC Playback Volume", ES8316_DAC_VOLL, |
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ES8316_DAC_VOLR, 0, 0xc0, 1, dac_vol_tlv), |
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SOC_SINGLE("DAC Soft Ramp Switch", ES8316_DAC_SET1, 4, 1, 1), |
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SOC_SINGLE("DAC Soft Ramp Rate", ES8316_DAC_SET1, 2, 4, 0), |
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SOC_SINGLE("DAC Notch Filter Switch", ES8316_DAC_SET2, 6, 1, 0), |
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SOC_SINGLE("DAC Double Fs Switch", ES8316_DAC_SET2, 7, 1, 0), |
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SOC_SINGLE("DAC Stereo Enhancement", ES8316_DAC_SET3, 0, 7, 0), |
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SOC_SINGLE("DAC Mono Mix Switch", ES8316_DAC_SET3, 3, 1, 0), |
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SOC_ENUM("Capture Polarity", adcpol), |
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SOC_SINGLE("Mic Boost Switch", ES8316_ADC_D2SEPGA, 0, 1, 0), |
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SOC_SINGLE_TLV("ADC Capture Volume", ES8316_ADC_VOLUME, |
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0, 0xc0, 1, adc_vol_tlv), |
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SOC_SINGLE_TLV("ADC PGA Gain Volume", ES8316_ADC_PGAGAIN, |
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4, 10, 0, adc_pga_gain_tlv), |
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SOC_SINGLE("ADC Soft Ramp Switch", ES8316_ADC_MUTE, 4, 1, 0), |
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SOC_SINGLE("ADC Double Fs Switch", ES8316_ADC_DMIC, 4, 1, 0), |
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SOC_SINGLE("ALC Capture Switch", ES8316_ADC_ALC1, 6, 1, 0), |
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SOC_SINGLE_TLV("ALC Capture Max Volume", ES8316_ADC_ALC1, 0, 28, 0, |
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alc_max_gain_tlv), |
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SOC_SINGLE_TLV("ALC Capture Min Volume", ES8316_ADC_ALC2, 0, 28, 0, |
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alc_min_gain_tlv), |
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SOC_SINGLE_TLV("ALC Capture Target Volume", ES8316_ADC_ALC3, 4, 10, 0, |
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alc_target_tlv), |
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SOC_SINGLE("ALC Capture Hold Time", ES8316_ADC_ALC3, 0, 10, 0), |
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SOC_SINGLE("ALC Capture Decay Time", ES8316_ADC_ALC4, 4, 10, 0), |
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SOC_SINGLE("ALC Capture Attack Time", ES8316_ADC_ALC4, 0, 10, 0), |
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SOC_SINGLE("ALC Capture Noise Gate Switch", ES8316_ADC_ALC_NG, |
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5, 1, 0), |
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SOC_SINGLE("ALC Capture Noise Gate Threshold", ES8316_ADC_ALC_NG, |
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0, 31, 0), |
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SOC_ENUM("ALC Capture Noise Gate Type", ng_type), |
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}; |
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/* Analog Input Mux */ |
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static const char * const es8316_analog_in_txt[] = { |
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"lin1-rin1", |
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"lin2-rin2", |
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"lin1-rin1 with 20db Boost", |
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"lin2-rin2 with 20db Boost" |
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}; |
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static const unsigned int es8316_analog_in_values[] = { 0, 1, 2, 3 }; |
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static const struct soc_enum es8316_analog_input_enum = |
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SOC_VALUE_ENUM_SINGLE(ES8316_ADC_PDN_LINSEL, 4, 3, |
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ARRAY_SIZE(es8316_analog_in_txt), |
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es8316_analog_in_txt, |
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es8316_analog_in_values); |
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static const struct snd_kcontrol_new es8316_analog_in_mux_controls = |
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SOC_DAPM_ENUM("Route", es8316_analog_input_enum); |
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static const char * const es8316_dmic_txt[] = { |
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"dmic disable", |
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"dmic data at high level", |
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"dmic data at low level", |
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}; |
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static const unsigned int es8316_dmic_values[] = { 0, 1, 2 }; |
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static const struct soc_enum es8316_dmic_src_enum = |
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SOC_VALUE_ENUM_SINGLE(ES8316_ADC_DMIC, 0, 3, |
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ARRAY_SIZE(es8316_dmic_txt), |
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es8316_dmic_txt, |
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es8316_dmic_values); |
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static const struct snd_kcontrol_new es8316_dmic_src_controls = |
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SOC_DAPM_ENUM("Route", es8316_dmic_src_enum); |
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/* hp mixer mux */ |
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static const char * const es8316_hpmux_texts[] = { |
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"lin1-rin1", |
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"lin2-rin2", |
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"lin-rin with Boost", |
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"lin-rin with Boost and PGA" |
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}; |
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static SOC_ENUM_SINGLE_DECL(es8316_left_hpmux_enum, ES8316_HPMIX_SEL, |
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4, es8316_hpmux_texts); |
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static const struct snd_kcontrol_new es8316_left_hpmux_controls = |
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SOC_DAPM_ENUM("Route", es8316_left_hpmux_enum); |
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static SOC_ENUM_SINGLE_DECL(es8316_right_hpmux_enum, ES8316_HPMIX_SEL, |
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0, es8316_hpmux_texts); |
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static const struct snd_kcontrol_new es8316_right_hpmux_controls = |
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SOC_DAPM_ENUM("Route", es8316_right_hpmux_enum); |
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/* headphone Output Mixer */ |
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static const struct snd_kcontrol_new es8316_out_left_mix[] = { |
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SOC_DAPM_SINGLE("LLIN Switch", ES8316_HPMIX_SWITCH, 6, 1, 0), |
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SOC_DAPM_SINGLE("Left DAC Switch", ES8316_HPMIX_SWITCH, 7, 1, 0), |
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}; |
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static const struct snd_kcontrol_new es8316_out_right_mix[] = { |
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SOC_DAPM_SINGLE("RLIN Switch", ES8316_HPMIX_SWITCH, 2, 1, 0), |
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SOC_DAPM_SINGLE("Right DAC Switch", ES8316_HPMIX_SWITCH, 3, 1, 0), |
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}; |
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/* DAC data source mux */ |
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static const char * const es8316_dacsrc_texts[] = { |
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"LDATA TO LDAC, RDATA TO RDAC", |
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"LDATA TO LDAC, LDATA TO RDAC", |
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"RDATA TO LDAC, RDATA TO RDAC", |
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"RDATA TO LDAC, LDATA TO RDAC", |
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}; |
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static SOC_ENUM_SINGLE_DECL(es8316_dacsrc_mux_enum, ES8316_DAC_SET1, |
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6, es8316_dacsrc_texts); |
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static const struct snd_kcontrol_new es8316_dacsrc_mux_controls = |
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SOC_DAPM_ENUM("Route", es8316_dacsrc_mux_enum); |
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static const struct snd_soc_dapm_widget es8316_dapm_widgets[] = { |
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SND_SOC_DAPM_SUPPLY("Bias", ES8316_SYS_PDN, 3, 1, NULL, 0), |
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SND_SOC_DAPM_SUPPLY("Analog power", ES8316_SYS_PDN, 4, 1, NULL, 0), |
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SND_SOC_DAPM_SUPPLY("Mic Bias", ES8316_SYS_PDN, 5, 1, NULL, 0), |
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SND_SOC_DAPM_INPUT("DMIC"), |
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SND_SOC_DAPM_INPUT("MIC1"), |
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SND_SOC_DAPM_INPUT("MIC2"), |
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/* Input Mux */ |
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SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0, |
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&es8316_analog_in_mux_controls), |
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SND_SOC_DAPM_SUPPLY("ADC Vref", ES8316_SYS_PDN, 1, 1, NULL, 0), |
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SND_SOC_DAPM_SUPPLY("ADC bias", ES8316_SYS_PDN, 2, 1, NULL, 0), |
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SND_SOC_DAPM_SUPPLY("ADC Clock", ES8316_CLKMGR_CLKSW, 3, 0, NULL, 0), |
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SND_SOC_DAPM_PGA("Line input PGA", ES8316_ADC_PDN_LINSEL, |
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7, 1, NULL, 0), |
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SND_SOC_DAPM_ADC("Mono ADC", NULL, ES8316_ADC_PDN_LINSEL, 6, 1), |
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SND_SOC_DAPM_MUX("Digital Mic Mux", SND_SOC_NOPM, 0, 0, |
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&es8316_dmic_src_controls), |
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/* Digital Interface */ |
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SND_SOC_DAPM_AIF_OUT("I2S OUT", "I2S1 Capture", 1, |
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ES8316_SERDATA_ADC, 6, 1), |
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SND_SOC_DAPM_AIF_IN("I2S IN", "I2S1 Playback", 0, |
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SND_SOC_NOPM, 0, 0), |
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SND_SOC_DAPM_MUX("DAC Source Mux", SND_SOC_NOPM, 0, 0, |
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&es8316_dacsrc_mux_controls), |
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SND_SOC_DAPM_SUPPLY("DAC Vref", ES8316_SYS_PDN, 0, 1, NULL, 0), |
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SND_SOC_DAPM_SUPPLY("DAC Clock", ES8316_CLKMGR_CLKSW, 2, 0, NULL, 0), |
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SND_SOC_DAPM_DAC("Right DAC", NULL, ES8316_DAC_PDN, 0, 1), |
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SND_SOC_DAPM_DAC("Left DAC", NULL, ES8316_DAC_PDN, 4, 1), |
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/* Headphone Output Side */ |
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SND_SOC_DAPM_MUX("Left Headphone Mux", SND_SOC_NOPM, 0, 0, |
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&es8316_left_hpmux_controls), |
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SND_SOC_DAPM_MUX("Right Headphone Mux", SND_SOC_NOPM, 0, 0, |
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&es8316_right_hpmux_controls), |
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SND_SOC_DAPM_MIXER("Left Headphone Mixer", ES8316_HPMIX_PDN, |
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5, 1, &es8316_out_left_mix[0], |
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ARRAY_SIZE(es8316_out_left_mix)), |
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SND_SOC_DAPM_MIXER("Right Headphone Mixer", ES8316_HPMIX_PDN, |
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1, 1, &es8316_out_right_mix[0], |
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ARRAY_SIZE(es8316_out_right_mix)), |
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SND_SOC_DAPM_PGA("Left Headphone Mixer Out", ES8316_HPMIX_PDN, |
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4, 1, NULL, 0), |
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SND_SOC_DAPM_PGA("Right Headphone Mixer Out", ES8316_HPMIX_PDN, |
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0, 1, NULL, 0), |
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SND_SOC_DAPM_OUT_DRV("Left Headphone Charge Pump", ES8316_CPHP_OUTEN, |
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6, 0, NULL, 0), |
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SND_SOC_DAPM_OUT_DRV("Right Headphone Charge Pump", ES8316_CPHP_OUTEN, |
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2, 0, NULL, 0), |
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SND_SOC_DAPM_SUPPLY("Headphone Charge Pump", ES8316_CPHP_PDN2, |
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5, 1, NULL, 0), |
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SND_SOC_DAPM_SUPPLY("Headphone Charge Pump Clock", ES8316_CLKMGR_CLKSW, |
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4, 0, NULL, 0), |
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SND_SOC_DAPM_OUT_DRV("Left Headphone Driver", ES8316_CPHP_OUTEN, |
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5, 0, NULL, 0), |
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SND_SOC_DAPM_OUT_DRV("Right Headphone Driver", ES8316_CPHP_OUTEN, |
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1, 0, NULL, 0), |
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SND_SOC_DAPM_SUPPLY("Headphone Out", ES8316_CPHP_PDN1, 2, 1, NULL, 0), |
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/* pdn_Lical and pdn_Rical bits are documented as Reserved, but must |
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* be explicitly unset in order to enable HP output |
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*/ |
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SND_SOC_DAPM_SUPPLY("Left Headphone ical", ES8316_CPHP_ICAL_VOL, |
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7, 1, NULL, 0), |
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SND_SOC_DAPM_SUPPLY("Right Headphone ical", ES8316_CPHP_ICAL_VOL, |
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3, 1, NULL, 0), |
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SND_SOC_DAPM_OUTPUT("HPOL"), |
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SND_SOC_DAPM_OUTPUT("HPOR"), |
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}; |
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static const struct snd_soc_dapm_route es8316_dapm_routes[] = { |
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/* Recording */ |
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{"MIC1", NULL, "Mic Bias"}, |
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{"MIC2", NULL, "Mic Bias"}, |
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{"MIC1", NULL, "Bias"}, |
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{"MIC2", NULL, "Bias"}, |
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{"MIC1", NULL, "Analog power"}, |
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{"MIC2", NULL, "Analog power"}, |
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{"Differential Mux", "lin1-rin1", "MIC1"}, |
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{"Differential Mux", "lin2-rin2", "MIC2"}, |
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{"Line input PGA", NULL, "Differential Mux"}, |
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{"Mono ADC", NULL, "ADC Clock"}, |
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{"Mono ADC", NULL, "ADC Vref"}, |
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{"Mono ADC", NULL, "ADC bias"}, |
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{"Mono ADC", NULL, "Line input PGA"}, |
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|
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/* It's not clear why, but to avoid recording only silence, |
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* the DAC clock must be running for the ADC to work. |
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*/ |
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{"Mono ADC", NULL, "DAC Clock"}, |
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{"Digital Mic Mux", "dmic disable", "Mono ADC"}, |
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{"I2S OUT", NULL, "Digital Mic Mux"}, |
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/* Playback */ |
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{"DAC Source Mux", "LDATA TO LDAC, RDATA TO RDAC", "I2S IN"}, |
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{"Left DAC", NULL, "DAC Clock"}, |
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{"Right DAC", NULL, "DAC Clock"}, |
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{"Left DAC", NULL, "DAC Vref"}, |
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{"Right DAC", NULL, "DAC Vref"}, |
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{"Left DAC", NULL, "DAC Source Mux"}, |
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{"Right DAC", NULL, "DAC Source Mux"}, |
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{"Left Headphone Mux", "lin-rin with Boost and PGA", "Line input PGA"}, |
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{"Right Headphone Mux", "lin-rin with Boost and PGA", "Line input PGA"}, |
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{"Left Headphone Mixer", "LLIN Switch", "Left Headphone Mux"}, |
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{"Left Headphone Mixer", "Left DAC Switch", "Left DAC"}, |
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{"Right Headphone Mixer", "RLIN Switch", "Right Headphone Mux"}, |
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{"Right Headphone Mixer", "Right DAC Switch", "Right DAC"}, |
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{"Left Headphone Mixer Out", NULL, "Left Headphone Mixer"}, |
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{"Right Headphone Mixer Out", NULL, "Right Headphone Mixer"}, |
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{"Left Headphone Charge Pump", NULL, "Left Headphone Mixer Out"}, |
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{"Right Headphone Charge Pump", NULL, "Right Headphone Mixer Out"}, |
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{"Left Headphone Charge Pump", NULL, "Headphone Charge Pump"}, |
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{"Right Headphone Charge Pump", NULL, "Headphone Charge Pump"}, |
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{"Left Headphone Charge Pump", NULL, "Headphone Charge Pump Clock"}, |
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{"Right Headphone Charge Pump", NULL, "Headphone Charge Pump Clock"}, |
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{"Left Headphone Driver", NULL, "Left Headphone Charge Pump"}, |
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{"Right Headphone Driver", NULL, "Right Headphone Charge Pump"}, |
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{"HPOL", NULL, "Left Headphone Driver"}, |
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{"HPOR", NULL, "Right Headphone Driver"}, |
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{"HPOL", NULL, "Left Headphone ical"}, |
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{"HPOR", NULL, "Right Headphone ical"}, |
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{"Headphone Out", NULL, "Bias"}, |
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{"Headphone Out", NULL, "Analog power"}, |
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{"HPOL", NULL, "Headphone Out"}, |
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{"HPOR", NULL, "Headphone Out"}, |
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}; |
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static int es8316_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
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int clk_id, unsigned int freq, int dir) |
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{ |
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struct snd_soc_component *component = codec_dai->component; |
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struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component); |
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int i, ret; |
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int count = 0; |
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es8316->sysclk = freq; |
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|
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if (freq == 0) { |
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es8316->sysclk_constraints.list = NULL; |
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es8316->sysclk_constraints.count = 0; |
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return 0; |
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} |
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ret = clk_set_rate(es8316->mclk, freq); |
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if (ret) |
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return ret; |
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|
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/* Limit supported sample rates to ones that can be autodetected |
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* by the codec running in slave mode. |
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*/ |
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for (i = 0; i < NR_SUPPORTED_MCLK_LRCK_RATIOS; i++) { |
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const unsigned int ratio = supported_mclk_lrck_ratios[i]; |
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|
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if (freq % ratio == 0) |
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es8316->allowed_rates[count++] = freq / ratio; |
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} |
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es8316->sysclk_constraints.list = es8316->allowed_rates; |
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es8316->sysclk_constraints.count = count; |
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return 0; |
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} |
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static int es8316_set_dai_fmt(struct snd_soc_dai *codec_dai, |
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unsigned int fmt) |
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{ |
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struct snd_soc_component *component = codec_dai->component; |
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u8 serdata1 = 0; |
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u8 serdata2 = 0; |
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u8 clksw; |
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u8 mask; |
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|
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if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) { |
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dev_err(component->dev, "Codec driver only supports slave mode\n"); |
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return -EINVAL; |
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} |
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|
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if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_I2S) { |
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dev_err(component->dev, "Codec driver only supports I2S format\n"); |
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return -EINVAL; |
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} |
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|
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/* Clock inversion */ |
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switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
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case SND_SOC_DAIFMT_NB_NF: |
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break; |
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case SND_SOC_DAIFMT_IB_IF: |
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serdata1 |= ES8316_SERDATA1_BCLK_INV; |
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serdata2 |= ES8316_SERDATA2_ADCLRP; |
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break; |
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case SND_SOC_DAIFMT_IB_NF: |
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serdata1 |= ES8316_SERDATA1_BCLK_INV; |
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break; |
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case SND_SOC_DAIFMT_NB_IF: |
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serdata2 |= ES8316_SERDATA2_ADCLRP; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
mask = ES8316_SERDATA1_MASTER | ES8316_SERDATA1_BCLK_INV; |
|
snd_soc_component_update_bits(component, ES8316_SERDATA1, mask, serdata1); |
|
|
|
mask = ES8316_SERDATA2_FMT_MASK | ES8316_SERDATA2_ADCLRP; |
|
snd_soc_component_update_bits(component, ES8316_SERDATA_ADC, mask, serdata2); |
|
snd_soc_component_update_bits(component, ES8316_SERDATA_DAC, mask, serdata2); |
|
|
|
/* Enable BCLK and MCLK inputs in slave mode */ |
|
clksw = ES8316_CLKMGR_CLKSW_MCLK_ON | ES8316_CLKMGR_CLKSW_BCLK_ON; |
|
snd_soc_component_update_bits(component, ES8316_CLKMGR_CLKSW, clksw, clksw); |
|
|
|
return 0; |
|
} |
|
|
|
static int es8316_pcm_startup(struct snd_pcm_substream *substream, |
|
struct snd_soc_dai *dai) |
|
{ |
|
struct snd_soc_component *component = dai->component; |
|
struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component); |
|
|
|
if (es8316->sysclk_constraints.list) |
|
snd_pcm_hw_constraint_list(substream->runtime, 0, |
|
SNDRV_PCM_HW_PARAM_RATE, |
|
&es8316->sysclk_constraints); |
|
|
|
return 0; |
|
} |
|
|
|
static int es8316_pcm_hw_params(struct snd_pcm_substream *substream, |
|
struct snd_pcm_hw_params *params, |
|
struct snd_soc_dai *dai) |
|
{ |
|
struct snd_soc_component *component = dai->component; |
|
struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component); |
|
u8 wordlen = 0; |
|
int i; |
|
|
|
/* Validate supported sample rates that are autodetected from MCLK */ |
|
for (i = 0; i < NR_SUPPORTED_MCLK_LRCK_RATIOS; i++) { |
|
const unsigned int ratio = supported_mclk_lrck_ratios[i]; |
|
|
|
if (es8316->sysclk % ratio != 0) |
|
continue; |
|
if (es8316->sysclk / ratio == params_rate(params)) |
|
break; |
|
} |
|
if (i == NR_SUPPORTED_MCLK_LRCK_RATIOS) |
|
return -EINVAL; |
|
|
|
switch (params_format(params)) { |
|
case SNDRV_PCM_FORMAT_S16_LE: |
|
wordlen = ES8316_SERDATA2_LEN_16; |
|
break; |
|
case SNDRV_PCM_FORMAT_S20_3LE: |
|
wordlen = ES8316_SERDATA2_LEN_20; |
|
break; |
|
case SNDRV_PCM_FORMAT_S24_LE: |
|
wordlen = ES8316_SERDATA2_LEN_24; |
|
break; |
|
case SNDRV_PCM_FORMAT_S32_LE: |
|
wordlen = ES8316_SERDATA2_LEN_32; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
snd_soc_component_update_bits(component, ES8316_SERDATA_DAC, |
|
ES8316_SERDATA2_LEN_MASK, wordlen); |
|
snd_soc_component_update_bits(component, ES8316_SERDATA_ADC, |
|
ES8316_SERDATA2_LEN_MASK, wordlen); |
|
return 0; |
|
} |
|
|
|
static int es8316_mute(struct snd_soc_dai *dai, int mute, int direction) |
|
{ |
|
snd_soc_component_update_bits(dai->component, ES8316_DAC_SET1, 0x20, |
|
mute ? 0x20 : 0); |
|
return 0; |
|
} |
|
|
|
#define ES8316_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ |
|
SNDRV_PCM_FMTBIT_S24_LE) |
|
|
|
static const struct snd_soc_dai_ops es8316_ops = { |
|
.startup = es8316_pcm_startup, |
|
.hw_params = es8316_pcm_hw_params, |
|
.set_fmt = es8316_set_dai_fmt, |
|
.set_sysclk = es8316_set_dai_sysclk, |
|
.mute_stream = es8316_mute, |
|
.no_capture_mute = 1, |
|
}; |
|
|
|
static struct snd_soc_dai_driver es8316_dai = { |
|
.name = "ES8316 HiFi", |
|
.playback = { |
|
.stream_name = "Playback", |
|
.channels_min = 1, |
|
.channels_max = 2, |
|
.rates = SNDRV_PCM_RATE_8000_48000, |
|
.formats = ES8316_FORMATS, |
|
}, |
|
.capture = { |
|
.stream_name = "Capture", |
|
.channels_min = 1, |
|
.channels_max = 2, |
|
.rates = SNDRV_PCM_RATE_8000_48000, |
|
.formats = ES8316_FORMATS, |
|
}, |
|
.ops = &es8316_ops, |
|
.symmetric_rate = 1, |
|
}; |
|
|
|
static void es8316_enable_micbias_for_mic_gnd_short_detect( |
|
struct snd_soc_component *component) |
|
{ |
|
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
|
|
|
snd_soc_dapm_mutex_lock(dapm); |
|
snd_soc_dapm_force_enable_pin_unlocked(dapm, "Bias"); |
|
snd_soc_dapm_force_enable_pin_unlocked(dapm, "Analog power"); |
|
snd_soc_dapm_force_enable_pin_unlocked(dapm, "Mic Bias"); |
|
snd_soc_dapm_sync_unlocked(dapm); |
|
snd_soc_dapm_mutex_unlock(dapm); |
|
|
|
msleep(20); |
|
} |
|
|
|
static void es8316_disable_micbias_for_mic_gnd_short_detect( |
|
struct snd_soc_component *component) |
|
{ |
|
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
|
|
|
snd_soc_dapm_mutex_lock(dapm); |
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Bias"); |
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Analog power"); |
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Bias"); |
|
snd_soc_dapm_sync_unlocked(dapm); |
|
snd_soc_dapm_mutex_unlock(dapm); |
|
} |
|
|
|
static irqreturn_t es8316_irq(int irq, void *data) |
|
{ |
|
struct es8316_priv *es8316 = data; |
|
struct snd_soc_component *comp = es8316->component; |
|
unsigned int flags; |
|
|
|
mutex_lock(&es8316->lock); |
|
|
|
regmap_read(es8316->regmap, ES8316_GPIO_FLAG, &flags); |
|
if (flags == 0x00) |
|
goto out; /* Powered-down / reset */ |
|
|
|
/* Catch spurious IRQ before set_jack is called */ |
|
if (!es8316->jack) |
|
goto out; |
|
|
|
if (es8316->jd_inverted) |
|
flags ^= ES8316_GPIO_FLAG_HP_NOT_INSERTED; |
|
|
|
dev_dbg(comp->dev, "gpio flags %#04x\n", flags); |
|
if (flags & ES8316_GPIO_FLAG_HP_NOT_INSERTED) { |
|
/* Jack removed, or spurious IRQ? */ |
|
if (es8316->jack->status & SND_JACK_MICROPHONE) |
|
es8316_disable_micbias_for_mic_gnd_short_detect(comp); |
|
|
|
if (es8316->jack->status & SND_JACK_HEADPHONE) { |
|
snd_soc_jack_report(es8316->jack, 0, |
|
SND_JACK_HEADSET | SND_JACK_BTN_0); |
|
dev_dbg(comp->dev, "jack unplugged\n"); |
|
} |
|
} else if (!(es8316->jack->status & SND_JACK_HEADPHONE)) { |
|
/* Jack inserted, determine type */ |
|
es8316_enable_micbias_for_mic_gnd_short_detect(comp); |
|
regmap_read(es8316->regmap, ES8316_GPIO_FLAG, &flags); |
|
if (es8316->jd_inverted) |
|
flags ^= ES8316_GPIO_FLAG_HP_NOT_INSERTED; |
|
dev_dbg(comp->dev, "gpio flags %#04x\n", flags); |
|
if (flags & ES8316_GPIO_FLAG_HP_NOT_INSERTED) { |
|
/* Jack unplugged underneath us */ |
|
es8316_disable_micbias_for_mic_gnd_short_detect(comp); |
|
} else if (flags & ES8316_GPIO_FLAG_GM_NOT_SHORTED) { |
|
/* Open, headset */ |
|
snd_soc_jack_report(es8316->jack, |
|
SND_JACK_HEADSET, |
|
SND_JACK_HEADSET); |
|
/* Keep mic-gnd-short detection on for button press */ |
|
} else { |
|
/* Shorted, headphones */ |
|
snd_soc_jack_report(es8316->jack, |
|
SND_JACK_HEADPHONE, |
|
SND_JACK_HEADSET); |
|
/* No longer need mic-gnd-short detection */ |
|
es8316_disable_micbias_for_mic_gnd_short_detect(comp); |
|
} |
|
} else if (es8316->jack->status & SND_JACK_MICROPHONE) { |
|
/* Interrupt while jack inserted, report button state */ |
|
if (flags & ES8316_GPIO_FLAG_GM_NOT_SHORTED) { |
|
/* Open, button release */ |
|
snd_soc_jack_report(es8316->jack, 0, SND_JACK_BTN_0); |
|
} else { |
|
/* Short, button press */ |
|
snd_soc_jack_report(es8316->jack, |
|
SND_JACK_BTN_0, |
|
SND_JACK_BTN_0); |
|
} |
|
} |
|
|
|
out: |
|
mutex_unlock(&es8316->lock); |
|
return IRQ_HANDLED; |
|
} |
|
|
|
static void es8316_enable_jack_detect(struct snd_soc_component *component, |
|
struct snd_soc_jack *jack) |
|
{ |
|
struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component); |
|
|
|
/* |
|
* Init es8316->jd_inverted here and not in the probe, as we cannot |
|
* guarantee that the bytchr-es8316 driver, which might set this |
|
* property, will probe before us. |
|
*/ |
|
es8316->jd_inverted = device_property_read_bool(component->dev, |
|
"everest,jack-detect-inverted"); |
|
|
|
mutex_lock(&es8316->lock); |
|
|
|
es8316->jack = jack; |
|
|
|
if (es8316->jack->status & SND_JACK_MICROPHONE) |
|
es8316_enable_micbias_for_mic_gnd_short_detect(component); |
|
|
|
snd_soc_component_update_bits(component, ES8316_GPIO_DEBOUNCE, |
|
ES8316_GPIO_ENABLE_INTERRUPT, |
|
ES8316_GPIO_ENABLE_INTERRUPT); |
|
|
|
mutex_unlock(&es8316->lock); |
|
|
|
/* Enable irq and sync initial jack state */ |
|
enable_irq(es8316->irq); |
|
es8316_irq(es8316->irq, es8316); |
|
} |
|
|
|
static void es8316_disable_jack_detect(struct snd_soc_component *component) |
|
{ |
|
struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component); |
|
|
|
if (!es8316->jack) |
|
return; /* Already disabled (or never enabled) */ |
|
|
|
disable_irq(es8316->irq); |
|
|
|
mutex_lock(&es8316->lock); |
|
|
|
snd_soc_component_update_bits(component, ES8316_GPIO_DEBOUNCE, |
|
ES8316_GPIO_ENABLE_INTERRUPT, 0); |
|
|
|
if (es8316->jack->status & SND_JACK_MICROPHONE) { |
|
es8316_disable_micbias_for_mic_gnd_short_detect(component); |
|
snd_soc_jack_report(es8316->jack, 0, SND_JACK_BTN_0); |
|
} |
|
|
|
es8316->jack = NULL; |
|
|
|
mutex_unlock(&es8316->lock); |
|
} |
|
|
|
static int es8316_set_jack(struct snd_soc_component *component, |
|
struct snd_soc_jack *jack, void *data) |
|
{ |
|
if (jack) |
|
es8316_enable_jack_detect(component, jack); |
|
else |
|
es8316_disable_jack_detect(component); |
|
|
|
return 0; |
|
} |
|
|
|
static int es8316_probe(struct snd_soc_component *component) |
|
{ |
|
struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component); |
|
int ret; |
|
|
|
es8316->component = component; |
|
|
|
es8316->mclk = devm_clk_get_optional(component->dev, "mclk"); |
|
if (IS_ERR(es8316->mclk)) { |
|
dev_err(component->dev, "unable to get mclk\n"); |
|
return PTR_ERR(es8316->mclk); |
|
} |
|
if (!es8316->mclk) |
|
dev_warn(component->dev, "assuming static mclk\n"); |
|
|
|
ret = clk_prepare_enable(es8316->mclk); |
|
if (ret) { |
|
dev_err(component->dev, "unable to enable mclk\n"); |
|
return ret; |
|
} |
|
|
|
/* Reset codec and enable current state machine */ |
|
snd_soc_component_write(component, ES8316_RESET, 0x3f); |
|
usleep_range(5000, 5500); |
|
snd_soc_component_write(component, ES8316_RESET, ES8316_RESET_CSM_ON); |
|
msleep(30); |
|
|
|
/* |
|
* Documentation is unclear, but this value from the vendor driver is |
|
* needed otherwise audio output is silent. |
|
*/ |
|
snd_soc_component_write(component, ES8316_SYS_VMIDSEL, 0xff); |
|
|
|
/* |
|
* Documentation for this register is unclear and incomplete, |
|
* but here is a vendor-provided value that improves volume |
|
* and quality for Intel CHT platforms. |
|
*/ |
|
snd_soc_component_write(component, ES8316_CLKMGR_ADCOSR, 0x32); |
|
|
|
return 0; |
|
} |
|
|
|
static void es8316_remove(struct snd_soc_component *component) |
|
{ |
|
struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component); |
|
|
|
clk_disable_unprepare(es8316->mclk); |
|
} |
|
|
|
static const struct snd_soc_component_driver soc_component_dev_es8316 = { |
|
.probe = es8316_probe, |
|
.remove = es8316_remove, |
|
.set_jack = es8316_set_jack, |
|
.controls = es8316_snd_controls, |
|
.num_controls = ARRAY_SIZE(es8316_snd_controls), |
|
.dapm_widgets = es8316_dapm_widgets, |
|
.num_dapm_widgets = ARRAY_SIZE(es8316_dapm_widgets), |
|
.dapm_routes = es8316_dapm_routes, |
|
.num_dapm_routes = ARRAY_SIZE(es8316_dapm_routes), |
|
.use_pmdown_time = 1, |
|
.endianness = 1, |
|
.non_legacy_dai_naming = 1, |
|
}; |
|
|
|
static const struct regmap_range es8316_volatile_ranges[] = { |
|
regmap_reg_range(ES8316_GPIO_FLAG, ES8316_GPIO_FLAG), |
|
}; |
|
|
|
static const struct regmap_access_table es8316_volatile_table = { |
|
.yes_ranges = es8316_volatile_ranges, |
|
.n_yes_ranges = ARRAY_SIZE(es8316_volatile_ranges), |
|
}; |
|
|
|
static const struct regmap_config es8316_regmap = { |
|
.reg_bits = 8, |
|
.val_bits = 8, |
|
.max_register = 0x53, |
|
.volatile_table = &es8316_volatile_table, |
|
.cache_type = REGCACHE_RBTREE, |
|
}; |
|
|
|
static int es8316_i2c_probe(struct i2c_client *i2c_client, |
|
const struct i2c_device_id *id) |
|
{ |
|
struct device *dev = &i2c_client->dev; |
|
struct es8316_priv *es8316; |
|
int ret; |
|
|
|
es8316 = devm_kzalloc(&i2c_client->dev, sizeof(struct es8316_priv), |
|
GFP_KERNEL); |
|
if (es8316 == NULL) |
|
return -ENOMEM; |
|
|
|
i2c_set_clientdata(i2c_client, es8316); |
|
|
|
es8316->regmap = devm_regmap_init_i2c(i2c_client, &es8316_regmap); |
|
if (IS_ERR(es8316->regmap)) |
|
return PTR_ERR(es8316->regmap); |
|
|
|
es8316->irq = i2c_client->irq; |
|
mutex_init(&es8316->lock); |
|
|
|
ret = devm_request_threaded_irq(dev, es8316->irq, NULL, es8316_irq, |
|
IRQF_TRIGGER_HIGH | IRQF_ONESHOT, |
|
"es8316", es8316); |
|
if (ret == 0) { |
|
/* Gets re-enabled by es8316_set_jack() */ |
|
disable_irq(es8316->irq); |
|
} else { |
|
dev_warn(dev, "Failed to get IRQ %d: %d\n", es8316->irq, ret); |
|
es8316->irq = -ENXIO; |
|
} |
|
|
|
return devm_snd_soc_register_component(&i2c_client->dev, |
|
&soc_component_dev_es8316, |
|
&es8316_dai, 1); |
|
} |
|
|
|
static const struct i2c_device_id es8316_i2c_id[] = { |
|
{"es8316", 0 }, |
|
{} |
|
}; |
|
MODULE_DEVICE_TABLE(i2c, es8316_i2c_id); |
|
|
|
#ifdef CONFIG_OF |
|
static const struct of_device_id es8316_of_match[] = { |
|
{ .compatible = "everest,es8316", }, |
|
{}, |
|
}; |
|
MODULE_DEVICE_TABLE(of, es8316_of_match); |
|
#endif |
|
|
|
#ifdef CONFIG_ACPI |
|
static const struct acpi_device_id es8316_acpi_match[] = { |
|
{"ESSX8316", 0}, |
|
{}, |
|
}; |
|
MODULE_DEVICE_TABLE(acpi, es8316_acpi_match); |
|
#endif |
|
|
|
static struct i2c_driver es8316_i2c_driver = { |
|
.driver = { |
|
.name = "es8316", |
|
.acpi_match_table = ACPI_PTR(es8316_acpi_match), |
|
.of_match_table = of_match_ptr(es8316_of_match), |
|
}, |
|
.probe = es8316_i2c_probe, |
|
.id_table = es8316_i2c_id, |
|
}; |
|
module_i2c_driver(es8316_i2c_driver); |
|
|
|
MODULE_DESCRIPTION("Everest Semi ES8316 ALSA SoC Codec Driver"); |
|
MODULE_AUTHOR("David Yang <[email protected]>"); |
|
MODULE_LICENSE("GPL v2");
|
|
|