/* * ALSA SoC TLV320AIC31XX codec driver * * Copyright (C) 2014 Texas Instruments, Inc. * * Author: Jyri Sarha * * Based on ground work by: Ajit Kulkarni * * This package is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * THIS PACKAGE IS PROVIDED AS IS AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * The TLV320AIC31xx series of audio codec is a low-power, highly integrated * high performance codec which provides a stereo DAC, a mono ADC, * and mono/stereo Class-D speaker driver. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "tlv320aic31xx.h" static const struct reg_default aic31xx_reg_defaults[] = { { AIC31XX_CLKMUX, 0x00 }, { AIC31XX_PLLPR, 0x11 }, { AIC31XX_PLLJ, 0x04 }, { AIC31XX_PLLDMSB, 0x00 }, { AIC31XX_PLLDLSB, 0x00 }, { AIC31XX_NDAC, 0x01 }, { AIC31XX_MDAC, 0x01 }, { AIC31XX_DOSRMSB, 0x00 }, { AIC31XX_DOSRLSB, 0x80 }, { AIC31XX_NADC, 0x01 }, { AIC31XX_MADC, 0x01 }, { AIC31XX_AOSR, 0x80 }, { AIC31XX_IFACE1, 0x00 }, { AIC31XX_DATA_OFFSET, 0x00 }, { AIC31XX_IFACE2, 0x00 }, { AIC31XX_BCLKN, 0x01 }, { AIC31XX_DACSETUP, 0x14 }, { AIC31XX_DACMUTE, 0x0c }, { AIC31XX_LDACVOL, 0x00 }, { AIC31XX_RDACVOL, 0x00 }, { AIC31XX_ADCSETUP, 0x00 }, { AIC31XX_ADCFGA, 0x80 }, { AIC31XX_ADCVOL, 0x00 }, { AIC31XX_HPDRIVER, 0x04 }, { AIC31XX_SPKAMP, 0x06 }, { AIC31XX_DACMIXERROUTE, 0x00 }, { AIC31XX_LANALOGHPL, 0x7f }, { AIC31XX_RANALOGHPR, 0x7f }, { AIC31XX_LANALOGSPL, 0x7f }, { AIC31XX_RANALOGSPR, 0x7f }, { AIC31XX_HPLGAIN, 0x02 }, { AIC31XX_HPRGAIN, 0x02 }, { AIC31XX_SPLGAIN, 0x00 }, { AIC31XX_SPRGAIN, 0x00 }, { AIC31XX_MICBIAS, 0x00 }, { AIC31XX_MICPGA, 0x80 }, { AIC31XX_MICPGAPI, 0x00 }, { AIC31XX_MICPGAMI, 0x00 }, }; static bool aic31xx_volatile(struct device *dev, unsigned int reg) { switch (reg) { case AIC31XX_PAGECTL: /* regmap implementation requires this */ case AIC31XX_RESET: /* always clears after write */ case AIC31XX_OT_FLAG: case AIC31XX_ADCFLAG: case AIC31XX_DACFLAG1: case AIC31XX_DACFLAG2: case AIC31XX_OFFLAG: /* Sticky interrupt flags */ case AIC31XX_INTRDACFLAG: /* Sticky interrupt flags */ case AIC31XX_INTRADCFLAG: /* Sticky interrupt flags */ case AIC31XX_INTRDACFLAG2: case AIC31XX_INTRADCFLAG2: return true; } return false; } static bool aic31xx_writeable(struct device *dev, unsigned int reg) { switch (reg) { case AIC31XX_OT_FLAG: case AIC31XX_ADCFLAG: case AIC31XX_DACFLAG1: case AIC31XX_DACFLAG2: case AIC31XX_OFFLAG: /* Sticky interrupt flags */ case AIC31XX_INTRDACFLAG: /* Sticky interrupt flags */ case AIC31XX_INTRADCFLAG: /* Sticky interrupt flags */ case AIC31XX_INTRDACFLAG2: case AIC31XX_INTRADCFLAG2: return false; } return true; } static const struct regmap_range_cfg aic31xx_ranges[] = { { .range_min = 0, .range_max = 12 * 128, .selector_reg = AIC31XX_PAGECTL, .selector_mask = 0xff, .selector_shift = 0, .window_start = 0, .window_len = 128, }, }; static const struct regmap_config aic31xx_i2c_regmap = { .reg_bits = 8, .val_bits = 8, .writeable_reg = aic31xx_writeable, .volatile_reg = aic31xx_volatile, .reg_defaults = aic31xx_reg_defaults, .num_reg_defaults = ARRAY_SIZE(aic31xx_reg_defaults), .cache_type = REGCACHE_RBTREE, .ranges = aic31xx_ranges, .num_ranges = ARRAY_SIZE(aic31xx_ranges), .max_register = 12 * 128, }; #define AIC31XX_NUM_SUPPLIES 6 static const char * const aic31xx_supply_names[AIC31XX_NUM_SUPPLIES] = { "HPVDD", "SPRVDD", "SPLVDD", "AVDD", "IOVDD", "DVDD", }; struct aic31xx_disable_nb { struct notifier_block nb; struct aic31xx_priv *aic31xx; }; struct aic31xx_priv { struct snd_soc_codec *codec; u8 i2c_regs_status; struct device *dev; struct regmap *regmap; struct aic31xx_pdata pdata; struct regulator_bulk_data supplies[AIC31XX_NUM_SUPPLIES]; struct aic31xx_disable_nb disable_nb[AIC31XX_NUM_SUPPLIES]; unsigned int sysclk; int rate_div_line; }; struct aic31xx_rate_divs { u32 mclk; u32 rate; u8 p_val; u8 pll_j; u16 pll_d; u16 dosr; u8 ndac; u8 mdac; u8 aosr; u8 nadc; u8 madc; }; /* ADC dividers can be disabled by cofiguring them to 0 */ static const struct aic31xx_rate_divs aic31xx_divs[] = { /* mclk rate pll: p j d dosr ndac mdac aors nadc madc */ /* 8k rate */ {12000000, 8000, 1, 8, 1920, 128, 48, 2, 128, 48, 2}, {24000000, 8000, 2, 8, 1920, 128, 48, 2, 128, 48, 2}, {25000000, 8000, 2, 7, 8643, 128, 48, 2, 128, 48, 2}, /* 11.025k rate */ {12000000, 11025, 1, 7, 5264, 128, 32, 2, 128, 32, 2}, {24000000, 11025, 2, 7, 5264, 128, 32, 2, 128, 32, 2}, {25000000, 11025, 2, 7, 2253, 128, 32, 2, 128, 32, 2}, /* 16k rate */ {12000000, 16000, 1, 8, 1920, 128, 24, 2, 128, 24, 2}, {24000000, 16000, 2, 8, 1920, 128, 24, 2, 128, 24, 2}, {25000000, 16000, 2, 7, 8643, 128, 24, 2, 128, 24, 2}, /* 22.05k rate */ {12000000, 22050, 1, 7, 5264, 128, 16, 2, 128, 16, 2}, {24000000, 22050, 2, 7, 5264, 128, 16, 2, 128, 16, 2}, {25000000, 22050, 2, 7, 2253, 128, 16, 2, 128, 16, 2}, /* 32k rate */ {12000000, 32000, 1, 8, 1920, 128, 12, 2, 128, 12, 2}, {24000000, 32000, 2, 8, 1920, 128, 12, 2, 128, 12, 2}, {25000000, 32000, 2, 7, 8643, 128, 12, 2, 128, 12, 2}, /* 44.1k rate */ {12000000, 44100, 1, 7, 5264, 128, 8, 2, 128, 8, 2}, {24000000, 44100, 2, 7, 5264, 128, 8, 2, 128, 8, 2}, {25000000, 44100, 2, 7, 2253, 128, 8, 2, 128, 8, 2}, /* 48k rate */ {12000000, 48000, 1, 8, 1920, 128, 8, 2, 128, 8, 2}, {24000000, 48000, 2, 8, 1920, 128, 8, 2, 128, 8, 2}, {25000000, 48000, 2, 7, 8643, 128, 8, 2, 128, 8, 2}, /* 88.2k rate */ {12000000, 88200, 1, 7, 5264, 64, 8, 2, 64, 8, 2}, {24000000, 88200, 2, 7, 5264, 64, 8, 2, 64, 8, 2}, {25000000, 88200, 2, 7, 2253, 64, 8, 2, 64, 8, 2}, /* 96k rate */ {12000000, 96000, 1, 8, 1920, 64, 8, 2, 64, 8, 2}, {24000000, 96000, 2, 8, 1920, 64, 8, 2, 64, 8, 2}, {25000000, 96000, 2, 7, 8643, 64, 8, 2, 64, 8, 2}, /* 176.4k rate */ {12000000, 176400, 1, 7, 5264, 32, 8, 2, 32, 8, 2}, {24000000, 176400, 2, 7, 5264, 32, 8, 2, 32, 8, 2}, {25000000, 176400, 2, 7, 2253, 32, 8, 2, 32, 8, 2}, /* 192k rate */ {12000000, 192000, 1, 8, 1920, 32, 8, 2, 32, 8, 2}, {24000000, 192000, 2, 8, 1920, 32, 8, 2, 32, 8, 2}, {25000000, 192000, 2, 7, 8643, 32, 8, 2, 32, 8, 2}, }; static const char * const ldac_in_text[] = { "Off", "Left Data", "Right Data", "Mono" }; static const char * const rdac_in_text[] = { "Off", "Right Data", "Left Data", "Mono" }; static SOC_ENUM_SINGLE_DECL(ldac_in_enum, AIC31XX_DACSETUP, 4, ldac_in_text); static SOC_ENUM_SINGLE_DECL(rdac_in_enum, AIC31XX_DACSETUP, 2, rdac_in_text); static const char * const mic_select_text[] = { "Off", "FFR 10 Ohm", "FFR 20 Ohm", "FFR 40 Ohm" }; static const SOC_ENUM_SINGLE_DECL(mic1lp_p_enum, AIC31XX_MICPGAPI, 6, mic_select_text); static const SOC_ENUM_SINGLE_DECL(mic1rp_p_enum, AIC31XX_MICPGAPI, 4, mic_select_text); static const SOC_ENUM_SINGLE_DECL(mic1lm_p_enum, AIC31XX_MICPGAPI, 2, mic_select_text); static const SOC_ENUM_SINGLE_DECL(cm_m_enum, AIC31XX_MICPGAMI, 6, mic_select_text); static const SOC_ENUM_SINGLE_DECL(mic1lm_m_enum, AIC31XX_MICPGAMI, 4, mic_select_text); static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -6350, 50, 0); static const DECLARE_TLV_DB_SCALE(adc_fgain_tlv, 0, 10, 0); static const DECLARE_TLV_DB_SCALE(adc_cgain_tlv, -2000, 50, 0); static const DECLARE_TLV_DB_SCALE(mic_pga_tlv, 0, 50, 0); static const DECLARE_TLV_DB_SCALE(hp_drv_tlv, 0, 100, 0); static const DECLARE_TLV_DB_SCALE(class_D_drv_tlv, 600, 600, 0); static const DECLARE_TLV_DB_SCALE(hp_vol_tlv, -6350, 50, 0); static const DECLARE_TLV_DB_SCALE(sp_vol_tlv, -6350, 50, 0); /* * controls to be exported to the user space */ static const struct snd_kcontrol_new aic31xx_snd_controls[] = { SOC_DOUBLE_R_S_TLV("DAC Playback Volume", AIC31XX_LDACVOL, AIC31XX_RDACVOL, 0, -127, 48, 7, 0, dac_vol_tlv), SOC_SINGLE_TLV("ADC Fine Capture Volume", AIC31XX_ADCFGA, 4, 4, 1, adc_fgain_tlv), SOC_SINGLE("ADC Capture Switch", AIC31XX_ADCFGA, 7, 1, 1), SOC_DOUBLE_R_S_TLV("ADC Capture Volume", AIC31XX_ADCVOL, AIC31XX_ADCVOL, 0, -24, 40, 6, 0, adc_cgain_tlv), SOC_SINGLE_TLV("Mic PGA Capture Volume", AIC31XX_MICPGA, 0, 119, 0, mic_pga_tlv), SOC_DOUBLE_R("HP Driver Playback Switch", AIC31XX_HPLGAIN, AIC31XX_HPRGAIN, 2, 1, 0), SOC_DOUBLE_R_TLV("HP Driver Playback Volume", AIC31XX_HPLGAIN, AIC31XX_HPRGAIN, 3, 0x09, 0, hp_drv_tlv), SOC_DOUBLE_R_TLV("HP Analog Playback Volume", AIC31XX_LANALOGHPL, AIC31XX_RANALOGHPR, 0, 0x7F, 1, hp_vol_tlv), }; static const struct snd_kcontrol_new aic311x_snd_controls[] = { SOC_DOUBLE_R("Speaker Driver Playback Switch", AIC31XX_SPLGAIN, AIC31XX_SPRGAIN, 2, 1, 0), SOC_DOUBLE_R_TLV("Speaker Driver Playback Volume", AIC31XX_SPLGAIN, AIC31XX_SPRGAIN, 3, 3, 0, class_D_drv_tlv), SOC_DOUBLE_R_TLV("Speaker Analog Playback Volume", AIC31XX_LANALOGSPL, AIC31XX_RANALOGSPR, 0, 0x7F, 1, sp_vol_tlv), }; static const struct snd_kcontrol_new aic310x_snd_controls[] = { SOC_SINGLE("Speaker Driver Playback Switch", AIC31XX_SPLGAIN, 2, 1, 0), SOC_SINGLE_TLV("Speaker Driver Playback Volume", AIC31XX_SPLGAIN, 3, 3, 0, class_D_drv_tlv), SOC_SINGLE_TLV("Speaker Analog Playback Volume", AIC31XX_LANALOGSPL, 0, 0x7F, 1, sp_vol_tlv), }; static const struct snd_kcontrol_new ldac_in_control = SOC_DAPM_ENUM("DAC Left Input", ldac_in_enum); static const struct snd_kcontrol_new rdac_in_control = SOC_DAPM_ENUM("DAC Right Input", rdac_in_enum); static int aic31xx_wait_bits(struct aic31xx_priv *aic31xx, unsigned int reg, unsigned int mask, unsigned int wbits, int sleep, int count) { unsigned int bits; int counter = count; int ret = regmap_read(aic31xx->regmap, reg, &bits); while ((bits & mask) != wbits && counter && !ret) { usleep_range(sleep, sleep * 2); ret = regmap_read(aic31xx->regmap, reg, &bits); counter--; } if ((bits & mask) != wbits) { dev_err(aic31xx->dev, "%s: Failed! 0x%x was 0x%x expected 0x%x (%d, 0x%x, %d us)\n", __func__, reg, bits, wbits, ret, mask, (count - counter) * sleep); ret = -1; } return ret; } #define WIDGET_BIT(reg, shift) (((shift) << 8) | (reg)) static int aic31xx_dapm_power_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(w->codec); unsigned int reg = AIC31XX_DACFLAG1; unsigned int mask; switch (WIDGET_BIT(w->reg, w->shift)) { case WIDGET_BIT(AIC31XX_DACSETUP, 7): mask = AIC31XX_LDACPWRSTATUS_MASK; break; case WIDGET_BIT(AIC31XX_DACSETUP, 6): mask = AIC31XX_RDACPWRSTATUS_MASK; break; case WIDGET_BIT(AIC31XX_HPDRIVER, 7): mask = AIC31XX_HPLDRVPWRSTATUS_MASK; break; case WIDGET_BIT(AIC31XX_HPDRIVER, 6): mask = AIC31XX_HPRDRVPWRSTATUS_MASK; break; case WIDGET_BIT(AIC31XX_SPKAMP, 7): mask = AIC31XX_SPLDRVPWRSTATUS_MASK; break; case WIDGET_BIT(AIC31XX_SPKAMP, 6): mask = AIC31XX_SPRDRVPWRSTATUS_MASK; break; case WIDGET_BIT(AIC31XX_ADCSETUP, 7): mask = AIC31XX_ADCPWRSTATUS_MASK; reg = AIC31XX_ADCFLAG; break; default: dev_err(w->codec->dev, "Unknown widget '%s' calling %s/n", w->name, __func__); return -EINVAL; } switch (event) { case SND_SOC_DAPM_POST_PMU: return aic31xx_wait_bits(aic31xx, reg, mask, mask, 5000, 100); case SND_SOC_DAPM_POST_PMD: return aic31xx_wait_bits(aic31xx, reg, mask, 0, 5000, 100); default: dev_dbg(w->codec->dev, "Unhandled dapm widget event %d from %s\n", event, w->name); } return 0; } static const struct snd_kcontrol_new left_output_switches[] = { SOC_DAPM_SINGLE("From Left DAC", AIC31XX_DACMIXERROUTE, 6, 1, 0), SOC_DAPM_SINGLE("From MIC1LP", AIC31XX_DACMIXERROUTE, 5, 1, 0), SOC_DAPM_SINGLE("From MIC1RP", AIC31XX_DACMIXERROUTE, 4, 1, 0), }; static const struct snd_kcontrol_new right_output_switches[] = { SOC_DAPM_SINGLE("From Right DAC", AIC31XX_DACMIXERROUTE, 2, 1, 0), SOC_DAPM_SINGLE("From MIC1RP", AIC31XX_DACMIXERROUTE, 1, 1, 0), }; static const struct snd_kcontrol_new p_term_mic1lp = SOC_DAPM_ENUM("MIC1LP P-Terminal", mic1lp_p_enum); static const struct snd_kcontrol_new p_term_mic1rp = SOC_DAPM_ENUM("MIC1RP P-Terminal", mic1rp_p_enum); static const struct snd_kcontrol_new p_term_mic1lm = SOC_DAPM_ENUM("MIC1LM P-Terminal", mic1lm_p_enum); static const struct snd_kcontrol_new m_term_mic1lm = SOC_DAPM_ENUM("MIC1LM M-Terminal", mic1lm_m_enum); static const struct snd_kcontrol_new aic31xx_dapm_hpl_switch = SOC_DAPM_SINGLE("Switch", AIC31XX_LANALOGHPL, 7, 1, 0); static const struct snd_kcontrol_new aic31xx_dapm_hpr_switch = SOC_DAPM_SINGLE("Switch", AIC31XX_RANALOGHPR, 7, 1, 0); static const struct snd_kcontrol_new aic31xx_dapm_spl_switch = SOC_DAPM_SINGLE("Switch", AIC31XX_LANALOGSPL, 7, 1, 0); static const struct snd_kcontrol_new aic31xx_dapm_spr_switch = SOC_DAPM_SINGLE("Switch", AIC31XX_RANALOGSPR, 7, 1, 0); static int mic_bias_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_codec *codec = w->codec; struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec); switch (event) { case SND_SOC_DAPM_POST_PMU: /* change mic bias voltage to user defined */ snd_soc_update_bits(codec, AIC31XX_MICBIAS, AIC31XX_MICBIAS_MASK, aic31xx->pdata.micbias_vg << AIC31XX_MICBIAS_SHIFT); dev_dbg(codec->dev, "%s: turned on\n", __func__); break; case SND_SOC_DAPM_PRE_PMD: /* turn mic bias off */ snd_soc_update_bits(codec, AIC31XX_MICBIAS, AIC31XX_MICBIAS_MASK, 0); dev_dbg(codec->dev, "%s: turned off\n", __func__); break; } return 0; } static const struct snd_soc_dapm_widget aic31xx_dapm_widgets[] = { SND_SOC_DAPM_AIF_IN("DAC IN", "DAC Playback", 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_MUX("DAC Left Input", SND_SOC_NOPM, 0, 0, &ldac_in_control), SND_SOC_DAPM_MUX("DAC Right Input", SND_SOC_NOPM, 0, 0, &rdac_in_control), /* DACs */ SND_SOC_DAPM_DAC_E("DAC Left", "Left Playback", AIC31XX_DACSETUP, 7, 0, aic31xx_dapm_power_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_DAC_E("DAC Right", "Right Playback", AIC31XX_DACSETUP, 6, 0, aic31xx_dapm_power_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), /* Output Mixers */ SND_SOC_DAPM_MIXER("Output Left", SND_SOC_NOPM, 0, 0, left_output_switches, ARRAY_SIZE(left_output_switches)), SND_SOC_DAPM_MIXER("Output Right", SND_SOC_NOPM, 0, 0, right_output_switches, ARRAY_SIZE(right_output_switches)), SND_SOC_DAPM_SWITCH("HP Left", SND_SOC_NOPM, 0, 0, &aic31xx_dapm_hpl_switch), SND_SOC_DAPM_SWITCH("HP Right", SND_SOC_NOPM, 0, 0, &aic31xx_dapm_hpr_switch), /* Output drivers */ SND_SOC_DAPM_OUT_DRV_E("HPL Driver", AIC31XX_HPDRIVER, 7, 0, NULL, 0, aic31xx_dapm_power_event, SND_SOC_DAPM_POST_PMD | SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_OUT_DRV_E("HPR Driver", AIC31XX_HPDRIVER, 6, 0, NULL, 0, aic31xx_dapm_power_event, SND_SOC_DAPM_POST_PMD | SND_SOC_DAPM_POST_PMU), /* ADC */ SND_SOC_DAPM_ADC_E("ADC", "Capture", AIC31XX_ADCSETUP, 7, 0, aic31xx_dapm_power_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), /* Input Selection to MIC_PGA */ SND_SOC_DAPM_MUX("MIC1LP P-Terminal", SND_SOC_NOPM, 0, 0, &p_term_mic1lp), SND_SOC_DAPM_MUX("MIC1RP P-Terminal", SND_SOC_NOPM, 0, 0, &p_term_mic1rp), SND_SOC_DAPM_MUX("MIC1LM P-Terminal", SND_SOC_NOPM, 0, 0, &p_term_mic1lm), SND_SOC_DAPM_MUX("MIC1LM M-Terminal", SND_SOC_NOPM, 0, 0, &m_term_mic1lm), /* Enabling & Disabling MIC Gain Ctl */ SND_SOC_DAPM_PGA("MIC_GAIN_CTL", AIC31XX_MICPGA, 7, 1, NULL, 0), /* Mic Bias */ SND_SOC_DAPM_SUPPLY("MICBIAS", SND_SOC_NOPM, 0, 0, mic_bias_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), /* Outputs */ SND_SOC_DAPM_OUTPUT("HPL"), SND_SOC_DAPM_OUTPUT("HPR"), /* Inputs */ SND_SOC_DAPM_INPUT("MIC1LP"), SND_SOC_DAPM_INPUT("MIC1RP"), SND_SOC_DAPM_INPUT("MIC1LM"), }; static const struct snd_soc_dapm_widget aic311x_dapm_widgets[] = { /* AIC3111 and AIC3110 have stereo class-D amplifier */ SND_SOC_DAPM_OUT_DRV_E("SPL ClassD", AIC31XX_SPKAMP, 7, 0, NULL, 0, aic31xx_dapm_power_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_OUT_DRV_E("SPR ClassD", AIC31XX_SPKAMP, 6, 0, NULL, 0, aic31xx_dapm_power_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_SWITCH("Speaker Left", SND_SOC_NOPM, 0, 0, &aic31xx_dapm_spl_switch), SND_SOC_DAPM_SWITCH("Speaker Right", SND_SOC_NOPM, 0, 0, &aic31xx_dapm_spr_switch), SND_SOC_DAPM_OUTPUT("SPL"), SND_SOC_DAPM_OUTPUT("SPR"), }; /* AIC3100 and AIC3120 have only mono class-D amplifier */ static const struct snd_soc_dapm_widget aic310x_dapm_widgets[] = { SND_SOC_DAPM_OUT_DRV_E("SPK ClassD", AIC31XX_SPKAMP, 7, 0, NULL, 0, aic31xx_dapm_power_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_SWITCH("Speaker", SND_SOC_NOPM, 0, 0, &aic31xx_dapm_spl_switch), SND_SOC_DAPM_OUTPUT("SPK"), }; static const struct snd_soc_dapm_route aic31xx_audio_map[] = { /* DAC Input Routing */ {"DAC Left Input", "Left Data", "DAC IN"}, {"DAC Left Input", "Right Data", "DAC IN"}, {"DAC Left Input", "Mono", "DAC IN"}, {"DAC Right Input", "Left Data", "DAC IN"}, {"DAC Right Input", "Right Data", "DAC IN"}, {"DAC Right Input", "Mono", "DAC IN"}, {"DAC Left", NULL, "DAC Left Input"}, {"DAC Right", NULL, "DAC Right Input"}, /* Mic input */ {"MIC1LP P-Terminal", "FFR 10 Ohm", "MIC1LP"}, {"MIC1LP P-Terminal", "FFR 20 Ohm", "MIC1LP"}, {"MIC1LP P-Terminal", "FFR 40 Ohm", "MIC1LP"}, {"MIC1RP P-Terminal", "FFR 10 Ohm", "MIC1RP"}, {"MIC1RP P-Terminal", "FFR 20 Ohm", "MIC1RP"}, {"MIC1RP P-Terminal", "FFR 40 Ohm", "MIC1RP"}, {"MIC1LM P-Terminal", "FFR 10 Ohm", "MIC1LM"}, {"MIC1LM P-Terminal", "FFR 20 Ohm", "MIC1LM"}, {"MIC1LM P-Terminal", "FFR 40 Ohm", "MIC1LM"}, {"MIC1LM M-Terminal", "FFR 10 Ohm", "MIC1LM"}, {"MIC1LM M-Terminal", "FFR 20 Ohm", "MIC1LM"}, {"MIC1LM M-Terminal", "FFR 40 Ohm", "MIC1LM"}, {"MIC_GAIN_CTL", NULL, "MIC1LP P-Terminal"}, {"MIC_GAIN_CTL", NULL, "MIC1RP P-Terminal"}, {"MIC_GAIN_CTL", NULL, "MIC1LM P-Terminal"}, {"MIC_GAIN_CTL", NULL, "MIC1LM M-Terminal"}, {"ADC", NULL, "MIC_GAIN_CTL"}, /* Left Output */ {"Output Left", "From Left DAC", "DAC Left"}, {"Output Left", "From MIC1LP", "MIC1LP"}, {"Output Left", "From MIC1RP", "MIC1RP"}, /* Right Output */ {"Output Right", "From Right DAC", "DAC Right"}, {"Output Right", "From MIC1RP", "MIC1RP"}, /* HPL path */ {"HP Left", "Switch", "Output Left"}, {"HPL Driver", NULL, "HP Left"}, {"HPL", NULL, "HPL Driver"}, /* HPR path */ {"HP Right", "Switch", "Output Right"}, {"HPR Driver", NULL, "HP Right"}, {"HPR", NULL, "HPR Driver"}, }; static const struct snd_soc_dapm_route aic311x_audio_map[] = { /* SP L path */ {"Speaker Left", "Switch", "Output Left"}, {"SPL ClassD", NULL, "Speaker Left"}, {"SPL", NULL, "SPL ClassD"}, /* SP R path */ {"Speaker Right", "Switch", "Output Right"}, {"SPR ClassD", NULL, "Speaker Right"}, {"SPR", NULL, "SPR ClassD"}, }; static const struct snd_soc_dapm_route aic310x_audio_map[] = { /* SP L path */ {"Speaker", "Switch", "Output Left"}, {"SPK ClassD", NULL, "Speaker"}, {"SPK", NULL, "SPK ClassD"}, }; static int aic31xx_add_controls(struct snd_soc_codec *codec) { int ret = 0; struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec); if (aic31xx->pdata.codec_type & AIC31XX_STEREO_CLASS_D_BIT) ret = snd_soc_add_codec_controls( codec, aic311x_snd_controls, ARRAY_SIZE(aic311x_snd_controls)); else ret = snd_soc_add_codec_controls( codec, aic310x_snd_controls, ARRAY_SIZE(aic310x_snd_controls)); return ret; } static int aic31xx_add_widgets(struct snd_soc_codec *codec) { struct snd_soc_dapm_context *dapm = &codec->dapm; struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec); int ret = 0; if (aic31xx->pdata.codec_type & AIC31XX_STEREO_CLASS_D_BIT) { ret = snd_soc_dapm_new_controls( dapm, aic311x_dapm_widgets, ARRAY_SIZE(aic311x_dapm_widgets)); if (ret) return ret; ret = snd_soc_dapm_add_routes(dapm, aic311x_audio_map, ARRAY_SIZE(aic311x_audio_map)); if (ret) return ret; } else { ret = snd_soc_dapm_new_controls( dapm, aic310x_dapm_widgets, ARRAY_SIZE(aic310x_dapm_widgets)); if (ret) return ret; ret = snd_soc_dapm_add_routes(dapm, aic310x_audio_map, ARRAY_SIZE(aic310x_audio_map)); if (ret) return ret; } return 0; } static int aic31xx_setup_pll(struct snd_soc_codec *codec, struct snd_pcm_hw_params *params) { struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec); int bclk_n = 0; int i; /* Use PLL as CODEC_CLKIN and DAC_CLK as BDIV_CLKIN */ snd_soc_update_bits(codec, AIC31XX_CLKMUX, AIC31XX_CODEC_CLKIN_MASK, AIC31XX_CODEC_CLKIN_PLL); snd_soc_update_bits(codec, AIC31XX_IFACE2, AIC31XX_BDIVCLK_MASK, AIC31XX_DAC2BCLK); for (i = 0; i < ARRAY_SIZE(aic31xx_divs); i++) { if (aic31xx_divs[i].rate == params_rate(params) && aic31xx_divs[i].mclk == aic31xx->sysclk) break; } if (i == ARRAY_SIZE(aic31xx_divs)) { dev_err(codec->dev, "%s: Sampling rate %u not supported\n", __func__, params_rate(params)); return -EINVAL; } /* PLL configuration */ snd_soc_update_bits(codec, AIC31XX_PLLPR, AIC31XX_PLL_MASK, (aic31xx_divs[i].p_val << 4) | 0x01); snd_soc_write(codec, AIC31XX_PLLJ, aic31xx_divs[i].pll_j); snd_soc_write(codec, AIC31XX_PLLDMSB, aic31xx_divs[i].pll_d >> 8); snd_soc_write(codec, AIC31XX_PLLDLSB, aic31xx_divs[i].pll_d & 0xff); /* DAC dividers configuration */ snd_soc_update_bits(codec, AIC31XX_NDAC, AIC31XX_PLL_MASK, aic31xx_divs[i].ndac); snd_soc_update_bits(codec, AIC31XX_MDAC, AIC31XX_PLL_MASK, aic31xx_divs[i].mdac); snd_soc_write(codec, AIC31XX_DOSRMSB, aic31xx_divs[i].dosr >> 8); snd_soc_write(codec, AIC31XX_DOSRLSB, aic31xx_divs[i].dosr & 0xff); /* ADC dividers configuration. Write reset value 1 if not used. */ snd_soc_update_bits(codec, AIC31XX_NADC, AIC31XX_PLL_MASK, aic31xx_divs[i].nadc ? aic31xx_divs[i].nadc : 1); snd_soc_update_bits(codec, AIC31XX_MADC, AIC31XX_PLL_MASK, aic31xx_divs[i].madc ? aic31xx_divs[i].madc : 1); snd_soc_write(codec, AIC31XX_AOSR, aic31xx_divs[i].aosr); /* Bit clock divider configuration. */ bclk_n = (aic31xx_divs[i].dosr * aic31xx_divs[i].mdac) / snd_soc_params_to_frame_size(params); if (bclk_n == 0) { dev_err(codec->dev, "%s: Not enough BLCK bandwidth\n", __func__); return -EINVAL; } snd_soc_update_bits(codec, AIC31XX_BCLKN, AIC31XX_PLL_MASK, bclk_n); aic31xx->rate_div_line = i; dev_dbg(codec->dev, "pll %d.%04d/%d dosr %d n %d m %d aosr %d n %d m %d bclk_n %d\n", aic31xx_divs[i].pll_j, aic31xx_divs[i].pll_d, aic31xx_divs[i].p_val, aic31xx_divs[i].dosr, aic31xx_divs[i].ndac, aic31xx_divs[i].mdac, aic31xx_divs[i].aosr, aic31xx_divs[i].nadc, aic31xx_divs[i].madc, bclk_n); return 0; } static int aic31xx_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *tmp) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_codec *codec = rtd->codec; u8 data = 0; dev_dbg(codec->dev, "## %s: format %d width %d rate %d\n", __func__, params_format(params), params_width(params), params_rate(params)); switch (params_width(params)) { case 16: break; case 20: data = (AIC31XX_WORD_LEN_20BITS << AIC31XX_IFACE1_DATALEN_SHIFT); break; case 24: data = (AIC31XX_WORD_LEN_24BITS << AIC31XX_IFACE1_DATALEN_SHIFT); break; case 32: data = (AIC31XX_WORD_LEN_32BITS << AIC31XX_IFACE1_DATALEN_SHIFT); break; default: dev_err(codec->dev, "%s: Unsupported format %d\n", __func__, params_format(params)); return -EINVAL; } snd_soc_update_bits(codec, AIC31XX_IFACE1, AIC31XX_IFACE1_DATALEN_MASK, data); return aic31xx_setup_pll(codec, params); } static int aic31xx_dac_mute(struct snd_soc_dai *codec_dai, int mute) { struct snd_soc_codec *codec = codec_dai->codec; if (mute) { snd_soc_update_bits(codec, AIC31XX_DACMUTE, AIC31XX_DACMUTE_MASK, AIC31XX_DACMUTE_MASK); } else { snd_soc_update_bits(codec, AIC31XX_DACMUTE, AIC31XX_DACMUTE_MASK, 0x0); } return 0; } static int aic31xx_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { struct snd_soc_codec *codec = codec_dai->codec; u8 iface_reg1 = 0; u8 iface_reg3 = 0; u8 dsp_a_val = 0; dev_dbg(codec->dev, "## %s: fmt = 0x%x\n", __func__, fmt); /* set master/slave audio interface */ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBM_CFM: iface_reg1 |= AIC31XX_BCLK_MASTER | AIC31XX_WCLK_MASTER; break; default: dev_alert(codec->dev, "Invalid DAI master/slave interface\n"); return -EINVAL; } /* interface format */ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: break; case SND_SOC_DAIFMT_DSP_A: dsp_a_val = 0x1; case SND_SOC_DAIFMT_DSP_B: /* NOTE: BCLKINV bit value 1 equas NB and 0 equals IB */ switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: iface_reg3 |= AIC31XX_BCLKINV_MASK; break; case SND_SOC_DAIFMT_IB_NF: break; default: return -EINVAL; } iface_reg1 |= (AIC31XX_DSP_MODE << AIC31XX_IFACE1_DATATYPE_SHIFT); break; case SND_SOC_DAIFMT_RIGHT_J: iface_reg1 |= (AIC31XX_RIGHT_JUSTIFIED_MODE << AIC31XX_IFACE1_DATATYPE_SHIFT); break; case SND_SOC_DAIFMT_LEFT_J: iface_reg1 |= (AIC31XX_LEFT_JUSTIFIED_MODE << AIC31XX_IFACE1_DATATYPE_SHIFT); break; default: dev_err(codec->dev, "Invalid DAI interface format\n"); return -EINVAL; } snd_soc_update_bits(codec, AIC31XX_IFACE1, AIC31XX_IFACE1_DATATYPE_MASK | AIC31XX_IFACE1_MASTER_MASK, iface_reg1); snd_soc_update_bits(codec, AIC31XX_DATA_OFFSET, AIC31XX_DATA_OFFSET_MASK, dsp_a_val); snd_soc_update_bits(codec, AIC31XX_IFACE2, AIC31XX_BCLKINV_MASK, iface_reg3); return 0; } static int aic31xx_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_codec *codec = codec_dai->codec; struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec); int i; dev_dbg(codec->dev, "## %s: clk_id = %d, freq = %d, dir = %d\n", __func__, clk_id, freq, dir); for (i = 0; aic31xx_divs[i].mclk != freq; i++) { if (i == ARRAY_SIZE(aic31xx_divs)) { dev_err(aic31xx->dev, "%s: Unsupported frequency %d\n", __func__, freq); return -EINVAL; } } /* set clock on MCLK, BCLK, or GPIO1 as PLL input */ snd_soc_update_bits(codec, AIC31XX_CLKMUX, AIC31XX_PLL_CLKIN_MASK, clk_id << AIC31XX_PLL_CLKIN_SHIFT); aic31xx->sysclk = freq; return 0; } static int aic31xx_regulator_event(struct notifier_block *nb, unsigned long event, void *data) { struct aic31xx_disable_nb *disable_nb = container_of(nb, struct aic31xx_disable_nb, nb); struct aic31xx_priv *aic31xx = disable_nb->aic31xx; if (event & REGULATOR_EVENT_DISABLE) { /* * Put codec to reset and as at least one of the * supplies was disabled. */ if (gpio_is_valid(aic31xx->pdata.gpio_reset)) gpio_set_value(aic31xx->pdata.gpio_reset, 0); regcache_mark_dirty(aic31xx->regmap); dev_dbg(aic31xx->dev, "## %s: DISABLE received\n", __func__); } return 0; } static void aic31xx_clk_on(struct snd_soc_codec *codec) { struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec); u8 mask = AIC31XX_PM_MASK; u8 on = AIC31XX_PM_MASK; dev_dbg(codec->dev, "codec clock -> on (rate %d)\n", aic31xx_divs[aic31xx->rate_div_line].rate); snd_soc_update_bits(codec, AIC31XX_PLLPR, mask, on); mdelay(10); snd_soc_update_bits(codec, AIC31XX_NDAC, mask, on); snd_soc_update_bits(codec, AIC31XX_MDAC, mask, on); if (aic31xx_divs[aic31xx->rate_div_line].nadc) snd_soc_update_bits(codec, AIC31XX_NADC, mask, on); if (aic31xx_divs[aic31xx->rate_div_line].madc) snd_soc_update_bits(codec, AIC31XX_MADC, mask, on); snd_soc_update_bits(codec, AIC31XX_BCLKN, mask, on); } static void aic31xx_clk_off(struct snd_soc_codec *codec) { u8 mask = AIC31XX_PM_MASK; u8 off = 0; dev_dbg(codec->dev, "codec clock -> off\n"); snd_soc_update_bits(codec, AIC31XX_BCLKN, mask, off); snd_soc_update_bits(codec, AIC31XX_MADC, mask, off); snd_soc_update_bits(codec, AIC31XX_NADC, mask, off); snd_soc_update_bits(codec, AIC31XX_MDAC, mask, off); snd_soc_update_bits(codec, AIC31XX_NDAC, mask, off); snd_soc_update_bits(codec, AIC31XX_PLLPR, mask, off); } static int aic31xx_power_on(struct snd_soc_codec *codec) { struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec); int ret = 0; ret = regulator_bulk_enable(ARRAY_SIZE(aic31xx->supplies), aic31xx->supplies); if (ret) return ret; if (gpio_is_valid(aic31xx->pdata.gpio_reset)) { gpio_set_value(aic31xx->pdata.gpio_reset, 1); udelay(100); } regcache_cache_only(aic31xx->regmap, false); ret = regcache_sync(aic31xx->regmap); if (ret != 0) { dev_err(codec->dev, "Failed to restore cache: %d\n", ret); regcache_cache_only(aic31xx->regmap, true); regulator_bulk_disable(ARRAY_SIZE(aic31xx->supplies), aic31xx->supplies); return ret; } return 0; } static int aic31xx_power_off(struct snd_soc_codec *codec) { struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec); int ret = 0; regcache_cache_only(aic31xx->regmap, true); ret = regulator_bulk_disable(ARRAY_SIZE(aic31xx->supplies), aic31xx->supplies); return ret; } static int aic31xx_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { dev_dbg(codec->dev, "## %s: %d -> %d\n", __func__, codec->dapm.bias_level, level); switch (level) { case SND_SOC_BIAS_ON: break; case SND_SOC_BIAS_PREPARE: if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) aic31xx_clk_on(codec); break; case SND_SOC_BIAS_STANDBY: switch (codec->dapm.bias_level) { case SND_SOC_BIAS_OFF: aic31xx_power_on(codec); break; case SND_SOC_BIAS_PREPARE: aic31xx_clk_off(codec); break; default: BUG(); } break; case SND_SOC_BIAS_OFF: if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) aic31xx_power_off(codec); break; } codec->dapm.bias_level = level; return 0; } static int aic31xx_suspend(struct snd_soc_codec *codec) { aic31xx_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } static int aic31xx_resume(struct snd_soc_codec *codec) { aic31xx_set_bias_level(codec, SND_SOC_BIAS_STANDBY); return 0; } static int aic31xx_codec_probe(struct snd_soc_codec *codec) { int ret = 0; struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec); int i; dev_dbg(aic31xx->dev, "## %s\n", __func__); aic31xx = snd_soc_codec_get_drvdata(codec); aic31xx->codec = codec; for (i = 0; i < ARRAY_SIZE(aic31xx->supplies); i++) { aic31xx->disable_nb[i].nb.notifier_call = aic31xx_regulator_event; aic31xx->disable_nb[i].aic31xx = aic31xx; ret = regulator_register_notifier(aic31xx->supplies[i].consumer, &aic31xx->disable_nb[i].nb); if (ret) { dev_err(codec->dev, "Failed to request regulator notifier: %d\n", ret); return ret; } } regcache_cache_only(aic31xx->regmap, true); regcache_mark_dirty(aic31xx->regmap); ret = aic31xx_add_controls(codec); if (ret) return ret; ret = aic31xx_add_widgets(codec); return ret; } static int aic31xx_codec_remove(struct snd_soc_codec *codec) { struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec); int i; /* power down chip */ aic31xx_set_bias_level(codec, SND_SOC_BIAS_OFF); for (i = 0; i < ARRAY_SIZE(aic31xx->supplies); i++) regulator_unregister_notifier(aic31xx->supplies[i].consumer, &aic31xx->disable_nb[i].nb); return 0; } static struct snd_soc_codec_driver soc_codec_driver_aic31xx = { .probe = aic31xx_codec_probe, .remove = aic31xx_codec_remove, .suspend = aic31xx_suspend, .resume = aic31xx_resume, .set_bias_level = aic31xx_set_bias_level, .controls = aic31xx_snd_controls, .num_controls = ARRAY_SIZE(aic31xx_snd_controls), .dapm_widgets = aic31xx_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(aic31xx_dapm_widgets), .dapm_routes = aic31xx_audio_map, .num_dapm_routes = ARRAY_SIZE(aic31xx_audio_map), }; static struct snd_soc_dai_ops aic31xx_dai_ops = { .hw_params = aic31xx_hw_params, .set_sysclk = aic31xx_set_dai_sysclk, .set_fmt = aic31xx_set_dai_fmt, .digital_mute = aic31xx_dac_mute, }; static struct snd_soc_dai_driver aic31xx_dai_driver[] = { { .name = "tlv320aic31xx-hifi", .playback = { .stream_name = "Playback", .channels_min = 1, .channels_max = 2, .rates = AIC31XX_RATES, .formats = AIC31XX_FORMATS, }, .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, .rates = AIC31XX_RATES, .formats = AIC31XX_FORMATS, }, .ops = &aic31xx_dai_ops, .symmetric_rates = 1, } }; #if defined(CONFIG_OF) static const struct of_device_id tlv320aic31xx_of_match[] = { { .compatible = "ti,tlv320aic310x" }, { .compatible = "ti,tlv320aic311x" }, { .compatible = "ti,tlv320aic3100" }, { .compatible = "ti,tlv320aic3110" }, { .compatible = "ti,tlv320aic3120" }, { .compatible = "ti,tlv320aic3111" }, {}, }; MODULE_DEVICE_TABLE(of, tlv320aic31xx_of_match); static void aic31xx_pdata_from_of(struct aic31xx_priv *aic31xx) { struct device_node *np = aic31xx->dev->of_node; unsigned int value = MICBIAS_2_0V; int ret; of_property_read_u32(np, "ai31xx-micbias-vg", &value); switch (value) { case MICBIAS_2_0V: case MICBIAS_2_5V: case MICBIAS_AVDDV: aic31xx->pdata.micbias_vg = value; break; default: dev_err(aic31xx->dev, "Bad ai31xx-micbias-vg value %d DT\n", value); aic31xx->pdata.micbias_vg = MICBIAS_2_0V; } ret = of_get_named_gpio(np, "gpio-reset", 0); if (ret > 0) aic31xx->pdata.gpio_reset = ret; } #else /* CONFIG_OF */ static void aic31xx_pdata_from_of(struct aic31xx_priv *aic31xx) { } #endif /* CONFIG_OF */ static void aic31xx_device_init(struct aic31xx_priv *aic31xx) { int ret, i; dev_set_drvdata(aic31xx->dev, aic31xx); if (dev_get_platdata(aic31xx->dev)) memcpy(&aic31xx->pdata, dev_get_platdata(aic31xx->dev), sizeof(aic31xx->pdata)); else if (aic31xx->dev->of_node) aic31xx_pdata_from_of(aic31xx); if (aic31xx->pdata.gpio_reset) { ret = devm_gpio_request_one(aic31xx->dev, aic31xx->pdata.gpio_reset, GPIOF_OUT_INIT_HIGH, "aic31xx-reset-pin"); if (ret < 0) { dev_err(aic31xx->dev, "not able to acquire gpio\n"); return; } } for (i = 0; i < ARRAY_SIZE(aic31xx->supplies); i++) aic31xx->supplies[i].supply = aic31xx_supply_names[i]; ret = devm_regulator_bulk_get(aic31xx->dev, ARRAY_SIZE(aic31xx->supplies), aic31xx->supplies); if (ret != 0) dev_err(aic31xx->dev, "Failed to request supplies: %d\n", ret); } static int aic31xx_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct aic31xx_priv *aic31xx; int ret; const struct regmap_config *regmap_config; dev_dbg(&i2c->dev, "## %s: %s codec_type = %d\n", __func__, id->name, (int) id->driver_data); regmap_config = &aic31xx_i2c_regmap; aic31xx = devm_kzalloc(&i2c->dev, sizeof(*aic31xx), GFP_KERNEL); if (aic31xx == NULL) return -ENOMEM; aic31xx->regmap = devm_regmap_init_i2c(i2c, regmap_config); if (IS_ERR(aic31xx->regmap)) { ret = PTR_ERR(aic31xx->regmap); dev_err(&i2c->dev, "Failed to allocate register map: %d\n", ret); return ret; } aic31xx->dev = &i2c->dev; aic31xx->pdata.codec_type = id->driver_data; aic31xx_device_init(aic31xx); return snd_soc_register_codec(&i2c->dev, &soc_codec_driver_aic31xx, aic31xx_dai_driver, ARRAY_SIZE(aic31xx_dai_driver)); } static int aic31xx_i2c_remove(struct i2c_client *i2c) { snd_soc_unregister_codec(&i2c->dev); return 0; } static const struct i2c_device_id aic31xx_i2c_id[] = { { "tlv320aic310x", AIC3100 }, { "tlv320aic311x", AIC3110 }, { "tlv320aic3100", AIC3100 }, { "tlv320aic3110", AIC3110 }, { "tlv320aic3120", AIC3120 }, { "tlv320aic3111", AIC3111 }, { } }; MODULE_DEVICE_TABLE(i2c, aic31xx_i2c_id); static struct i2c_driver aic31xx_i2c_driver = { .driver = { .name = "tlv320aic31xx-codec", .owner = THIS_MODULE, .of_match_table = of_match_ptr(tlv320aic31xx_of_match), }, .probe = aic31xx_i2c_probe, .remove = aic31xx_i2c_remove, .id_table = aic31xx_i2c_id, }; module_i2c_driver(aic31xx_i2c_driver); MODULE_DESCRIPTION("ASoC TLV320AIC3111 codec driver"); MODULE_AUTHOR("Jyri Sarha"); MODULE_LICENSE("GPL");