diff options
Diffstat (limited to '')
-rw-r--r-- | sound/soc/codecs/tlv320aic31xx.c | 1756 |
1 files changed, 1756 insertions, 0 deletions
diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c new file mode 100644 index 000000000..084730212 --- /dev/null +++ b/sound/soc/codecs/tlv320aic31xx.c @@ -0,0 +1,1756 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * ALSA SoC TLV320AIC31xx CODEC Driver + * + * Copyright (C) 2014-2017 Texas Instruments Incorporated - https://www.ti.com/ + * Jyri Sarha <jsarha@ti.com> + * + * Based on ground work by: Ajit Kulkarni <x0175765@ti.com> + * + * The TLV320AIC31xx series of audio codecs are low-power, highly integrated + * high performance codecs which provides a stereo DAC, a mono ADC, + * and mono/stereo Class-D speaker driver. + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/pm.h> +#include <linux/i2c.h> +#include <linux/gpio/consumer.h> +#include <linux/regulator/consumer.h> +#include <linux/acpi.h> +#include <linux/of.h> +#include <linux/of_gpio.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/jack.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/initval.h> +#include <sound/tlv.h> +#include <dt-bindings/sound/tlv320aic31xx.h> + +#include "tlv320aic31xx.h" + +static int aic31xx_set_jack(struct snd_soc_component *component, + struct snd_soc_jack *jack, void *data); + +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: + case AIC31XX_HSDETECT: + 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, +}; + +static const char * const aic31xx_supply_names[] = { + "HPVDD", + "SPRVDD", + "SPLVDD", + "AVDD", + "IOVDD", + "DVDD", +}; + +#define AIC31XX_NUM_SUPPLIES ARRAY_SIZE(aic31xx_supply_names) + +struct aic31xx_disable_nb { + struct notifier_block nb; + struct aic31xx_priv *aic31xx; +}; + +struct aic31xx_priv { + struct snd_soc_component *component; + u8 i2c_regs_status; + struct device *dev; + struct regmap *regmap; + enum aic31xx_type codec_type; + struct gpio_desc *gpio_reset; + int micbias_vg; + struct aic31xx_pdata pdata; + struct regulator_bulk_data supplies[AIC31XX_NUM_SUPPLIES]; + struct aic31xx_disable_nb disable_nb[AIC31XX_NUM_SUPPLIES]; + struct snd_soc_jack *jack; + u32 sysclk_id; + unsigned int sysclk; + u8 p_div; + int rate_div_line; + bool master_dapm_route_applied; + int irq; + u8 ocmv; /* output common-mode voltage */ +}; + +struct aic31xx_rate_divs { + u32 mclk_p; + u32 rate; + u8 pll_r; + u8 pll_j; + u16 pll_d; + u16 dosr; + u8 ndac; + u8 mdac; + u8 aosr; + u8 nadc; + u8 madc; +}; + +/* ADC dividers can be disabled by configuring them to 0 */ +static const struct aic31xx_rate_divs aic31xx_divs[] = { + /* mclk/p rate pll: r j d dosr ndac mdac aors nadc madc */ + /* 8k rate */ + { 512000, 8000, 4, 48, 0, 128, 48, 2, 128, 48, 2}, + {12000000, 8000, 1, 8, 1920, 128, 48, 2, 128, 48, 2}, + {12000000, 8000, 1, 8, 1920, 128, 32, 3, 128, 32, 3}, + {12500000, 8000, 1, 7, 8643, 128, 48, 2, 128, 48, 2}, + /* 11.025k rate */ + { 705600, 11025, 3, 48, 0, 128, 24, 3, 128, 24, 3}, + {12000000, 11025, 1, 7, 5264, 128, 32, 2, 128, 32, 2}, + {12000000, 11025, 1, 8, 4672, 128, 24, 3, 128, 24, 3}, + {12500000, 11025, 1, 7, 2253, 128, 32, 2, 128, 32, 2}, + /* 16k rate */ + { 512000, 16000, 4, 48, 0, 128, 16, 3, 128, 16, 3}, + { 1024000, 16000, 2, 48, 0, 128, 16, 3, 128, 16, 3}, + {12000000, 16000, 1, 8, 1920, 128, 24, 2, 128, 24, 2}, + {12000000, 16000, 1, 8, 1920, 128, 16, 3, 128, 16, 3}, + {12500000, 16000, 1, 7, 8643, 128, 24, 2, 128, 24, 2}, + /* 22.05k rate */ + { 705600, 22050, 4, 36, 0, 128, 12, 3, 128, 12, 3}, + { 1411200, 22050, 2, 36, 0, 128, 12, 3, 128, 12, 3}, + {12000000, 22050, 1, 7, 5264, 128, 16, 2, 128, 16, 2}, + {12000000, 22050, 1, 8, 4672, 128, 12, 3, 128, 12, 3}, + {12500000, 22050, 1, 7, 2253, 128, 16, 2, 128, 16, 2}, + /* 32k rate */ + { 1024000, 32000, 2, 48, 0, 128, 12, 2, 128, 12, 2}, + { 2048000, 32000, 1, 48, 0, 128, 12, 2, 128, 12, 2}, + {12000000, 32000, 1, 8, 1920, 128, 12, 2, 128, 12, 2}, + {12000000, 32000, 1, 8, 1920, 128, 8, 3, 128, 8, 3}, + {12500000, 32000, 1, 7, 8643, 128, 12, 2, 128, 12, 2}, + /* 44.1k rate */ + { 1411200, 44100, 2, 32, 0, 128, 8, 2, 128, 8, 2}, + { 2822400, 44100, 1, 32, 0, 128, 8, 2, 128, 8, 2}, + {12000000, 44100, 1, 7, 5264, 128, 8, 2, 128, 8, 2}, + {12000000, 44100, 1, 8, 4672, 128, 6, 3, 128, 6, 3}, + {12500000, 44100, 1, 7, 2253, 128, 8, 2, 128, 8, 2}, + /* 48k rate */ + { 1536000, 48000, 2, 32, 0, 128, 8, 2, 128, 8, 2}, + { 3072000, 48000, 1, 32, 0, 128, 8, 2, 128, 8, 2}, + {12000000, 48000, 1, 8, 1920, 128, 8, 2, 128, 8, 2}, + {12000000, 48000, 1, 7, 6800, 96, 5, 4, 96, 5, 4}, + {12500000, 48000, 1, 7, 8643, 128, 8, 2, 128, 8, 2}, + /* 88.2k rate */ + { 2822400, 88200, 2, 16, 0, 64, 8, 2, 64, 8, 2}, + { 5644800, 88200, 1, 16, 0, 64, 8, 2, 64, 8, 2}, + {12000000, 88200, 1, 7, 5264, 64, 8, 2, 64, 8, 2}, + {12000000, 88200, 1, 8, 4672, 64, 6, 3, 64, 6, 3}, + {12500000, 88200, 1, 7, 2253, 64, 8, 2, 64, 8, 2}, + /* 96k rate */ + { 3072000, 96000, 2, 16, 0, 64, 8, 2, 64, 8, 2}, + { 6144000, 96000, 1, 16, 0, 64, 8, 2, 64, 8, 2}, + {12000000, 96000, 1, 8, 1920, 64, 8, 2, 64, 8, 2}, + {12000000, 96000, 1, 7, 6800, 48, 5, 4, 48, 5, 4}, + {12500000, 96000, 1, 7, 8643, 64, 8, 2, 64, 8, 2}, + /* 176.4k rate */ + { 5644800, 176400, 2, 8, 0, 32, 8, 2, 32, 8, 2}, + {11289600, 176400, 1, 8, 0, 32, 8, 2, 32, 8, 2}, + {12000000, 176400, 1, 7, 5264, 32, 8, 2, 32, 8, 2}, + {12000000, 176400, 1, 8, 4672, 32, 6, 3, 32, 6, 3}, + {12500000, 176400, 1, 7, 2253, 32, 8, 2, 32, 8, 2}, + /* 192k rate */ + { 6144000, 192000, 2, 8, 0, 32, 8, 2, 32, 8, 2}, + {12288000, 192000, 1, 8, 0, 32, 8, 2, 32, 8, 2}, + {12000000, 192000, 1, 8, 1920, 32, 8, 2, 32, 8, 2}, + {12000000, 192000, 1, 7, 6800, 24, 5, 4, 24, 5, 4}, + {12500000, 192000, 1, 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 SOC_ENUM_SINGLE_DECL(mic1lp_p_enum, AIC31XX_MICPGAPI, 6, + mic_select_text); +static SOC_ENUM_SINGLE_DECL(mic1rp_p_enum, AIC31XX_MICPGAPI, 4, + mic_select_text); +static SOC_ENUM_SINGLE_DECL(mic1lm_p_enum, AIC31XX_MICPGAPI, 2, + mic_select_text); + +static SOC_ENUM_SINGLE_DECL(mic1lm_m_enum, AIC31XX_MICPGAMI, 4, + mic_select_text); + +static const char * const hp_poweron_time_text[] = { + "0us", "15.3us", "153us", "1.53ms", "15.3ms", "76.2ms", + "153ms", "304ms", "610ms", "1.22s", "3.04s", "6.1s" }; + +static SOC_ENUM_SINGLE_DECL(hp_poweron_time_enum, AIC31XX_HPPOP, 3, + hp_poweron_time_text); + +static const char * const hp_rampup_step_text[] = { + "0ms", "0.98ms", "1.95ms", "3.9ms" }; + +static SOC_ENUM_SINGLE_DECL(hp_rampup_step_enum, AIC31XX_HPPOP, 1, + hp_rampup_step_text); + +static const char * const vol_soft_step_mode_text[] = { + "fast", "slow", "disabled" }; + +static SOC_ENUM_SINGLE_DECL(vol_soft_step_mode_enum, AIC31XX_DACSETUP, 0, + vol_soft_step_mode_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 common31xx_snd_controls[] = { + SOC_DOUBLE_R_S_TLV("DAC Playback Volume", AIC31XX_LDACVOL, + AIC31XX_RDACVOL, 0, -127, 48, 7, 0, dac_vol_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), + + /* HP de-pop control: apply power not immediately but via ramp + * function with these psarameters. Note that power up sequence + * has to wait for this to complete; this is implemented by + * polling HP driver status in aic31xx_dapm_power_event() + */ + SOC_ENUM("HP Output Driver Power-On time", hp_poweron_time_enum), + SOC_ENUM("HP Output Driver Ramp-up step", hp_rampup_step_enum), + + SOC_ENUM("Volume Soft Stepping", vol_soft_step_mode_enum), +}; + +static const struct snd_kcontrol_new aic31xx_snd_controls[] = { + 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), +}; + +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 snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); + struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component); + unsigned int reg = AIC31XX_DACFLAG1; + unsigned int mask; + unsigned int timeout = 500 * USEC_PER_MSEC; + + 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; + if (event == SND_SOC_DAPM_POST_PMU) + timeout = 7 * USEC_PER_SEC; + break; + case WIDGET_BIT(AIC31XX_HPDRIVER, 6): + mask = AIC31XX_HPRDRVPWRSTATUS_MASK; + if (event == SND_SOC_DAPM_POST_PMU) + timeout = 7 * USEC_PER_SEC; + 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(component->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, timeout / 5000); + case SND_SOC_DAPM_POST_PMD: + return aic31xx_wait_bits(aic31xx, reg, mask, 0, + 5000, timeout / 5000); + default: + dev_dbg(component->dev, + "Unhandled dapm widget event %d from %s\n", + event, w->name); + } + return 0; +} + +static const struct snd_kcontrol_new aic31xx_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 aic31xx_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 dac31xx_left_output_switches[] = { + SOC_DAPM_SINGLE("From Left DAC", AIC31XX_DACMIXERROUTE, 6, 1, 0), + SOC_DAPM_SINGLE("From AIN1", AIC31XX_DACMIXERROUTE, 5, 1, 0), + SOC_DAPM_SINGLE("From AIN2", AIC31XX_DACMIXERROUTE, 4, 1, 0), +}; + +static const struct snd_kcontrol_new dac31xx_right_output_switches[] = { + SOC_DAPM_SINGLE("From Right DAC", AIC31XX_DACMIXERROUTE, 2, 1, 0), + SOC_DAPM_SINGLE("From AIN2", 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_component *component = snd_soc_dapm_to_component(w->dapm); + struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component); + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + /* change mic bias voltage to user defined */ + snd_soc_component_update_bits(component, AIC31XX_MICBIAS, + AIC31XX_MICBIAS_MASK, + aic31xx->micbias_vg << + AIC31XX_MICBIAS_SHIFT); + dev_dbg(component->dev, "%s: turned on\n", __func__); + break; + case SND_SOC_DAPM_PRE_PMD: + /* turn mic bias off */ + snd_soc_component_update_bits(component, AIC31XX_MICBIAS, + AIC31XX_MICBIAS_MASK, 0); + dev_dbg(component->dev, "%s: turned off\n", __func__); + break; + } + return 0; +} + +static const struct snd_soc_dapm_widget common31xx_dapm_widgets[] = { + SND_SOC_DAPM_AIF_IN("AIF IN", "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), + + /* HP */ + 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), + + /* 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), + + /* Keep BCLK/WCLK enabled even if DAC/ADC is powered down */ + SND_SOC_DAPM_SUPPLY("Activate I2S clocks", AIC31XX_IFACE2, 2, 0, + NULL, 0), + + /* Outputs */ + SND_SOC_DAPM_OUTPUT("HPL"), + SND_SOC_DAPM_OUTPUT("HPR"), +}; + +static const struct snd_soc_dapm_widget dac31xx_dapm_widgets[] = { + /* Inputs */ + SND_SOC_DAPM_INPUT("AIN1"), + SND_SOC_DAPM_INPUT("AIN2"), + + /* Output Mixers */ + SND_SOC_DAPM_MIXER("Output Left", SND_SOC_NOPM, 0, 0, + dac31xx_left_output_switches, + ARRAY_SIZE(dac31xx_left_output_switches)), + SND_SOC_DAPM_MIXER("Output Right", SND_SOC_NOPM, 0, 0, + dac31xx_right_output_switches, + ARRAY_SIZE(dac31xx_right_output_switches)), +}; + +static const struct snd_soc_dapm_widget aic31xx_dapm_widgets[] = { + /* Inputs */ + SND_SOC_DAPM_INPUT("MIC1LP"), + SND_SOC_DAPM_INPUT("MIC1RP"), + SND_SOC_DAPM_INPUT("MIC1LM"), + + /* 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), + + /* 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), + + 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), + + /* Output Mixers */ + SND_SOC_DAPM_MIXER("Output Left", SND_SOC_NOPM, 0, 0, + aic31xx_left_output_switches, + ARRAY_SIZE(aic31xx_left_output_switches)), + SND_SOC_DAPM_MIXER("Output Right", SND_SOC_NOPM, 0, 0, + aic31xx_right_output_switches, + ARRAY_SIZE(aic31xx_right_output_switches)), + + SND_SOC_DAPM_AIF_OUT("AIF OUT", "Capture", 0, SND_SOC_NOPM, 0, 0), +}; + +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 +common31xx_audio_map[] = { + /* DAC Input Routing */ + {"DAC Left Input", "Left Data", "AIF IN"}, + {"DAC Left Input", "Right Data", "AIF IN"}, + {"DAC Left Input", "Mono", "AIF IN"}, + {"DAC Right Input", "Left Data", "AIF IN"}, + {"DAC Right Input", "Right Data", "AIF IN"}, + {"DAC Right Input", "Mono", "AIF IN"}, + {"DAC Left", NULL, "DAC Left Input"}, + {"DAC Right", NULL, "DAC Right Input"}, + + /* 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 +dac31xx_audio_map[] = { + /* Left Output */ + {"Output Left", "From Left DAC", "DAC Left"}, + {"Output Left", "From AIN1", "AIN1"}, + {"Output Left", "From AIN2", "AIN2"}, + + /* Right Output */ + {"Output Right", "From Right DAC", "DAC Right"}, + {"Output Right", "From AIN2", "AIN2"}, +}; + +static const struct snd_soc_dapm_route +aic31xx_audio_map[] = { + /* 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"}, + + {"AIF OUT", NULL, "ADC"}, + + /* 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"}, +}; + +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"}, +}; + +/* + * Always connected DAPM routes for codec clock master modes. + * If the codec is the master on the I2S bus, we need to power up components + * to have valid DAC_CLK. + * + * In order to have the I2S clocks on the bus either the DACs/ADC need to be + * enabled, or the P0/R29/D2 (Keep bclk/wclk in power down) need to be set. + * + * Otherwise the codec will not generate clocks on the bus. + */ +static const struct snd_soc_dapm_route +common31xx_cm_audio_map[] = { + {"HPL", NULL, "AIF IN"}, + {"HPR", NULL, "AIF IN"}, + + {"AIF IN", NULL, "Activate I2S clocks"}, +}; + +static const struct snd_soc_dapm_route +aic31xx_cm_audio_map[] = { + {"AIF OUT", NULL, "MIC1LP"}, + {"AIF OUT", NULL, "MIC1RP"}, + {"AIF OUT", NULL, "MIC1LM"}, + + {"AIF OUT", NULL, "Activate I2S clocks"}, +}; + +static int aic31xx_add_controls(struct snd_soc_component *component) +{ + int ret = 0; + struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component); + + if (!(aic31xx->codec_type & DAC31XX_BIT)) + ret = snd_soc_add_component_controls( + component, aic31xx_snd_controls, + ARRAY_SIZE(aic31xx_snd_controls)); + if (ret) + return ret; + + if (aic31xx->codec_type & AIC31XX_STEREO_CLASS_D_BIT) + ret = snd_soc_add_component_controls( + component, aic311x_snd_controls, + ARRAY_SIZE(aic311x_snd_controls)); + else + ret = snd_soc_add_component_controls( + component, aic310x_snd_controls, + ARRAY_SIZE(aic310x_snd_controls)); + + return ret; +} + +static int aic31xx_add_widgets(struct snd_soc_component *component) +{ + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component); + int ret = 0; + + if (aic31xx->codec_type & DAC31XX_BIT) { + ret = snd_soc_dapm_new_controls( + dapm, dac31xx_dapm_widgets, + ARRAY_SIZE(dac31xx_dapm_widgets)); + if (ret) + return ret; + + ret = snd_soc_dapm_add_routes(dapm, dac31xx_audio_map, + ARRAY_SIZE(dac31xx_audio_map)); + if (ret) + return ret; + } else { + ret = snd_soc_dapm_new_controls( + dapm, aic31xx_dapm_widgets, + ARRAY_SIZE(aic31xx_dapm_widgets)); + if (ret) + return ret; + + ret = snd_soc_dapm_add_routes(dapm, aic31xx_audio_map, + ARRAY_SIZE(aic31xx_audio_map)); + if (ret) + return ret; + } + + if (aic31xx->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_component *component, + struct snd_pcm_hw_params *params) +{ + struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component); + int bclk_score = snd_soc_params_to_frame_size(params); + int mclk_p; + int bclk_n = 0; + int match = -1; + int i; + + if (!aic31xx->sysclk || !aic31xx->p_div) { + dev_err(component->dev, "Master clock not supplied\n"); + return -EINVAL; + } + mclk_p = aic31xx->sysclk / aic31xx->p_div; + + /* Use PLL as CODEC_CLKIN and DAC_CLK as BDIV_CLKIN */ + snd_soc_component_update_bits(component, AIC31XX_CLKMUX, + AIC31XX_CODEC_CLKIN_MASK, AIC31XX_CODEC_CLKIN_PLL); + snd_soc_component_update_bits(component, 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_p == mclk_p) { + int s = (aic31xx_divs[i].dosr * aic31xx_divs[i].mdac) % + snd_soc_params_to_frame_size(params); + int bn = (aic31xx_divs[i].dosr * aic31xx_divs[i].mdac) / + snd_soc_params_to_frame_size(params); + if (s < bclk_score && bn > 0) { + match = i; + bclk_n = bn; + bclk_score = s; + } + } + } + + if (match == -1) { + dev_err(component->dev, + "%s: Sample rate (%u) and format not supported\n", + __func__, params_rate(params)); + /* See bellow for details how fix this. */ + return -EINVAL; + } + if (bclk_score != 0) { + dev_warn(component->dev, "Can not produce exact bitclock"); + /* This is fine if using dsp format, but if using i2s + there may be trouble. To fix the issue edit the + aic31xx_divs table for your mclk and sample + rate. Details can be found from: + https://www.ti.com/lit/ds/symlink/tlv320aic3100.pdf + Section: 5.6 CLOCK Generation and PLL + */ + } + i = match; + + /* PLL configuration */ + snd_soc_component_update_bits(component, AIC31XX_PLLPR, AIC31XX_PLL_MASK, + (aic31xx->p_div << 4) | aic31xx_divs[i].pll_r); + snd_soc_component_write(component, AIC31XX_PLLJ, aic31xx_divs[i].pll_j); + + snd_soc_component_write(component, AIC31XX_PLLDMSB, + aic31xx_divs[i].pll_d >> 8); + snd_soc_component_write(component, AIC31XX_PLLDLSB, + aic31xx_divs[i].pll_d & 0xff); + + /* DAC dividers configuration */ + snd_soc_component_update_bits(component, AIC31XX_NDAC, AIC31XX_PLL_MASK, + aic31xx_divs[i].ndac); + snd_soc_component_update_bits(component, AIC31XX_MDAC, AIC31XX_PLL_MASK, + aic31xx_divs[i].mdac); + + snd_soc_component_write(component, AIC31XX_DOSRMSB, aic31xx_divs[i].dosr >> 8); + snd_soc_component_write(component, AIC31XX_DOSRLSB, aic31xx_divs[i].dosr & 0xff); + + /* ADC dividers configuration. Write reset value 1 if not used. */ + snd_soc_component_update_bits(component, AIC31XX_NADC, AIC31XX_PLL_MASK, + aic31xx_divs[i].nadc ? aic31xx_divs[i].nadc : 1); + snd_soc_component_update_bits(component, AIC31XX_MADC, AIC31XX_PLL_MASK, + aic31xx_divs[i].madc ? aic31xx_divs[i].madc : 1); + + snd_soc_component_write(component, AIC31XX_AOSR, aic31xx_divs[i].aosr); + + /* Bit clock divider configuration. */ + snd_soc_component_update_bits(component, AIC31XX_BCLKN, + AIC31XX_PLL_MASK, bclk_n); + + aic31xx->rate_div_line = i; + + dev_dbg(component->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->p_div, + 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 *dai) +{ + struct snd_soc_component *component = dai->component; + struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component); + u8 data = 0; + + dev_dbg(component->dev, "## %s: width %d rate %d\n", + __func__, 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(component->dev, "%s: Unsupported width %d\n", + __func__, params_width(params)); + return -EINVAL; + } + + snd_soc_component_update_bits(component, AIC31XX_IFACE1, + AIC31XX_IFACE1_DATALEN_MASK, + data); + + /* + * If BCLK is used as PLL input, the sysclk is determined by the hw + * params. So it must be updated here to match the input frequency. + */ + if (aic31xx->sysclk_id == AIC31XX_PLL_CLKIN_BCLK) { + aic31xx->sysclk = params_rate(params) * params_width(params) * + params_channels(params); + aic31xx->p_div = 1; + } + + return aic31xx_setup_pll(component, params); +} + +static int aic31xx_dac_mute(struct snd_soc_dai *codec_dai, int mute, + int direction) +{ + struct snd_soc_component *component = codec_dai->component; + + if (mute) { + snd_soc_component_update_bits(component, AIC31XX_DACMUTE, + AIC31XX_DACMUTE_MASK, + AIC31XX_DACMUTE_MASK); + } else { + snd_soc_component_update_bits(component, AIC31XX_DACMUTE, + AIC31XX_DACMUTE_MASK, 0x0); + } + + return 0; +} + +static int aic31xx_clock_master_routes(struct snd_soc_component *component, + unsigned int fmt) +{ + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component); + int ret; + + fmt &= SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK; + if (fmt == SND_SOC_DAIFMT_CBC_CFC && + aic31xx->master_dapm_route_applied) { + /* + * Remove the DAPM route(s) for codec clock master modes, + * if applied + */ + ret = snd_soc_dapm_del_routes(dapm, common31xx_cm_audio_map, + ARRAY_SIZE(common31xx_cm_audio_map)); + if (!ret && !(aic31xx->codec_type & DAC31XX_BIT)) + ret = snd_soc_dapm_del_routes(dapm, + aic31xx_cm_audio_map, + ARRAY_SIZE(aic31xx_cm_audio_map)); + + if (ret) + return ret; + + aic31xx->master_dapm_route_applied = false; + } else if (fmt != SND_SOC_DAIFMT_CBC_CFC && + !aic31xx->master_dapm_route_applied) { + /* + * Add the needed DAPM route(s) for codec clock master modes, + * if it is not done already + */ + ret = snd_soc_dapm_add_routes(dapm, common31xx_cm_audio_map, + ARRAY_SIZE(common31xx_cm_audio_map)); + if (!ret && !(aic31xx->codec_type & DAC31XX_BIT)) + ret = snd_soc_dapm_add_routes(dapm, + aic31xx_cm_audio_map, + ARRAY_SIZE(aic31xx_cm_audio_map)); + + if (ret) + return ret; + + aic31xx->master_dapm_route_applied = true; + } + + return 0; +} + +static int aic31xx_set_dai_fmt(struct snd_soc_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_component *component = codec_dai->component; + u8 iface_reg1 = 0; + u8 iface_reg2 = 0; + u8 dsp_a_val = 0; + + dev_dbg(component->dev, "## %s: fmt = 0x%x\n", __func__, fmt); + + switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { + case SND_SOC_DAIFMT_CBP_CFP: + iface_reg1 |= AIC31XX_BCLK_MASTER | AIC31XX_WCLK_MASTER; + break; + case SND_SOC_DAIFMT_CBC_CFP: + iface_reg1 |= AIC31XX_WCLK_MASTER; + break; + case SND_SOC_DAIFMT_CBP_CFC: + iface_reg1 |= AIC31XX_BCLK_MASTER; + break; + case SND_SOC_DAIFMT_CBC_CFC: + break; + default: + dev_err(component->dev, "Invalid DAI clock provider\n"); + return -EINVAL; + } + + /* signal polarity */ + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_NF: + iface_reg2 |= AIC31XX_BCLKINV_MASK; + break; + default: + dev_err(component->dev, "Invalid DAI clock signal polarity\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; + fallthrough; + case SND_SOC_DAIFMT_DSP_B: + /* + * NOTE: This CODEC samples on the falling edge of BCLK in + * DSP mode, this is inverted compared to what most DAIs + * expect, so we invert for this mode + */ + iface_reg2 ^= AIC31XX_BCLKINV_MASK; + 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(component->dev, "Invalid DAI interface format\n"); + return -EINVAL; + } + + snd_soc_component_update_bits(component, AIC31XX_IFACE1, + AIC31XX_IFACE1_DATATYPE_MASK | + AIC31XX_IFACE1_MASTER_MASK, + iface_reg1); + snd_soc_component_update_bits(component, AIC31XX_DATA_OFFSET, + AIC31XX_DATA_OFFSET_MASK, + dsp_a_val); + snd_soc_component_update_bits(component, AIC31XX_IFACE2, + AIC31XX_BCLKINV_MASK, + iface_reg2); + + return aic31xx_clock_master_routes(component, fmt); +} + +static int aic31xx_set_dai_sysclk(struct snd_soc_dai *codec_dai, + int clk_id, unsigned int freq, int dir) +{ + struct snd_soc_component *component = codec_dai->component; + struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component); + int i; + + dev_dbg(component->dev, "## %s: clk_id = %d, freq = %d, dir = %d\n", + __func__, clk_id, freq, dir); + + for (i = 1; i < 8; i++) + if (freq / i <= 20000000) + break; + if (freq/i > 20000000) { + dev_err(aic31xx->dev, "%s: Too high mclk frequency %u\n", + __func__, freq); + return -EINVAL; + } + aic31xx->p_div = i; + + for (i = 0; i < ARRAY_SIZE(aic31xx_divs); i++) + if (aic31xx_divs[i].mclk_p == freq / aic31xx->p_div) + break; + 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_component_update_bits(component, AIC31XX_CLKMUX, AIC31XX_PLL_CLKIN_MASK, + clk_id << AIC31XX_PLL_CLKIN_SHIFT); + + aic31xx->sysclk_id = clk_id; + 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 (aic31xx->gpio_reset) + gpiod_set_value(aic31xx->gpio_reset, 1); + + regcache_mark_dirty(aic31xx->regmap); + dev_dbg(aic31xx->dev, "## %s: DISABLE received\n", __func__); + } + + return 0; +} + +static int aic31xx_reset(struct aic31xx_priv *aic31xx) +{ + int ret = 0; + + if (aic31xx->gpio_reset) { + gpiod_set_value(aic31xx->gpio_reset, 1); + ndelay(10); /* At least 10ns */ + gpiod_set_value(aic31xx->gpio_reset, 0); + } else { + ret = regmap_write(aic31xx->regmap, AIC31XX_RESET, 1); + } + mdelay(1); /* At least 1ms */ + + return ret; +} + +static void aic31xx_clk_on(struct snd_soc_component *component) +{ + struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component); + u8 mask = AIC31XX_PM_MASK; + u8 on = AIC31XX_PM_MASK; + + dev_dbg(component->dev, "codec clock -> on (rate %d)\n", + aic31xx_divs[aic31xx->rate_div_line].rate); + snd_soc_component_update_bits(component, AIC31XX_PLLPR, mask, on); + mdelay(10); + snd_soc_component_update_bits(component, AIC31XX_NDAC, mask, on); + snd_soc_component_update_bits(component, AIC31XX_MDAC, mask, on); + if (aic31xx_divs[aic31xx->rate_div_line].nadc) + snd_soc_component_update_bits(component, AIC31XX_NADC, mask, on); + if (aic31xx_divs[aic31xx->rate_div_line].madc) + snd_soc_component_update_bits(component, AIC31XX_MADC, mask, on); + snd_soc_component_update_bits(component, AIC31XX_BCLKN, mask, on); +} + +static void aic31xx_clk_off(struct snd_soc_component *component) +{ + u8 mask = AIC31XX_PM_MASK; + u8 off = 0; + + dev_dbg(component->dev, "codec clock -> off\n"); + snd_soc_component_update_bits(component, AIC31XX_BCLKN, mask, off); + snd_soc_component_update_bits(component, AIC31XX_MADC, mask, off); + snd_soc_component_update_bits(component, AIC31XX_NADC, mask, off); + snd_soc_component_update_bits(component, AIC31XX_MDAC, mask, off); + snd_soc_component_update_bits(component, AIC31XX_NDAC, mask, off); + snd_soc_component_update_bits(component, AIC31XX_PLLPR, mask, off); +} + +static int aic31xx_power_on(struct snd_soc_component *component) +{ + struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component); + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(aic31xx->supplies), + aic31xx->supplies); + if (ret) + return ret; + + regcache_cache_only(aic31xx->regmap, false); + + /* Reset device registers for a consistent power-on like state */ + ret = aic31xx_reset(aic31xx); + if (ret < 0) + dev_err(aic31xx->dev, "Could not reset device: %d\n", ret); + + ret = regcache_sync(aic31xx->regmap); + if (ret) { + dev_err(component->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; + } + + /* + * The jack detection configuration is in the same register + * that is used to report jack detect status so is volatile + * and not covered by the cache sync, restore it separately. + */ + aic31xx_set_jack(component, aic31xx->jack, NULL); + + return 0; +} + +static void aic31xx_power_off(struct snd_soc_component *component) +{ + struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component); + + regcache_cache_only(aic31xx->regmap, true); + regulator_bulk_disable(ARRAY_SIZE(aic31xx->supplies), + aic31xx->supplies); +} + +static int aic31xx_set_bias_level(struct snd_soc_component *component, + enum snd_soc_bias_level level) +{ + dev_dbg(component->dev, "## %s: %d -> %d\n", __func__, + snd_soc_component_get_bias_level(component), level); + + switch (level) { + case SND_SOC_BIAS_ON: + break; + case SND_SOC_BIAS_PREPARE: + if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_STANDBY) + aic31xx_clk_on(component); + break; + case SND_SOC_BIAS_STANDBY: + switch (snd_soc_component_get_bias_level(component)) { + case SND_SOC_BIAS_OFF: + aic31xx_power_on(component); + break; + case SND_SOC_BIAS_PREPARE: + aic31xx_clk_off(component); + break; + default: + BUG(); + } + break; + case SND_SOC_BIAS_OFF: + if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_STANDBY) + aic31xx_power_off(component); + break; + } + + return 0; +} + +static int aic31xx_set_jack(struct snd_soc_component *component, + struct snd_soc_jack *jack, void *data) +{ + struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component); + + aic31xx->jack = jack; + + /* Enable/Disable jack detection */ + regmap_write(aic31xx->regmap, AIC31XX_HSDETECT, + jack ? AIC31XX_HSD_ENABLE : 0); + + return 0; +} + +static int aic31xx_codec_probe(struct snd_soc_component *component) +{ + struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component); + int i, ret; + + dev_dbg(aic31xx->dev, "## %s\n", __func__); + + aic31xx->component = component; + + 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 = devm_regulator_register_notifier( + aic31xx->supplies[i].consumer, + &aic31xx->disable_nb[i].nb); + if (ret) { + dev_err(component->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(component); + if (ret) + return ret; + + ret = aic31xx_add_widgets(component); + if (ret) + return ret; + + /* set output common-mode voltage */ + snd_soc_component_update_bits(component, AIC31XX_HPDRIVER, + AIC31XX_HPD_OCMV_MASK, + aic31xx->ocmv << AIC31XX_HPD_OCMV_SHIFT); + + return 0; +} + +static const struct snd_soc_component_driver soc_codec_driver_aic31xx = { + .probe = aic31xx_codec_probe, + .set_jack = aic31xx_set_jack, + .set_bias_level = aic31xx_set_bias_level, + .controls = common31xx_snd_controls, + .num_controls = ARRAY_SIZE(common31xx_snd_controls), + .dapm_widgets = common31xx_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(common31xx_dapm_widgets), + .dapm_routes = common31xx_audio_map, + .num_dapm_routes = ARRAY_SIZE(common31xx_audio_map), + .suspend_bias_off = 1, + .idle_bias_on = 1, + .use_pmdown_time = 1, + .endianness = 1, +}; + +static const 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, + .mute_stream = aic31xx_dac_mute, + .no_capture_mute = 1, +}; + +static struct snd_soc_dai_driver dac31xx_dai_driver[] = { + { + .name = "tlv320dac31xx-hifi", + .playback = { + .stream_name = "Playback", + .channels_min = 2, + .channels_max = 2, + .rates = AIC31XX_RATES, + .formats = AIC31XX_FORMATS, + }, + .ops = &aic31xx_dai_ops, + .symmetric_rate = 1, + } +}; + +static struct snd_soc_dai_driver aic31xx_dai_driver[] = { + { + .name = "tlv320aic31xx-hifi", + .playback = { + .stream_name = "Playback", + .channels_min = 2, + .channels_max = 2, + .rates = AIC31XX_RATES, + .formats = AIC31XX_FORMATS, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 2, + .rates = AIC31XX_RATES, + .formats = AIC31XX_FORMATS, + }, + .ops = &aic31xx_dai_ops, + .symmetric_rate = 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" }, + { .compatible = "ti,tlv320dac3100" }, + { .compatible = "ti,tlv320dac3101" }, + {}, +}; +MODULE_DEVICE_TABLE(of, tlv320aic31xx_of_match); +#endif /* CONFIG_OF */ + +#ifdef CONFIG_ACPI +static const struct acpi_device_id aic31xx_acpi_match[] = { + { "10TI3100", 0 }, + { } +}; +MODULE_DEVICE_TABLE(acpi, aic31xx_acpi_match); +#endif + +static irqreturn_t aic31xx_irq(int irq, void *data) +{ + struct aic31xx_priv *aic31xx = data; + struct device *dev = aic31xx->dev; + unsigned int value; + bool handled = false; + int ret; + + ret = regmap_read(aic31xx->regmap, AIC31XX_INTRDACFLAG, &value); + if (ret) { + dev_err(dev, "Failed to read interrupt mask: %d\n", ret); + goto exit; + } + + if (value) + handled = true; + else + goto read_overflow; + + if (value & AIC31XX_HPLSCDETECT) + dev_err(dev, "Short circuit on Left output is detected\n"); + if (value & AIC31XX_HPRSCDETECT) + dev_err(dev, "Short circuit on Right output is detected\n"); + if (value & (AIC31XX_HSPLUG | AIC31XX_BUTTONPRESS)) { + unsigned int val; + int status = 0; + + ret = regmap_read(aic31xx->regmap, AIC31XX_INTRDACFLAG2, + &val); + if (ret) { + dev_err(dev, "Failed to read interrupt mask: %d\n", + ret); + goto exit; + } + + if (val & AIC31XX_BUTTONPRESS) + status |= SND_JACK_BTN_0; + + ret = regmap_read(aic31xx->regmap, AIC31XX_HSDETECT, &val); + if (ret) { + dev_err(dev, "Failed to read headset type: %d\n", ret); + goto exit; + } + + switch ((val & AIC31XX_HSD_TYPE_MASK) >> + AIC31XX_HSD_TYPE_SHIFT) { + case AIC31XX_HSD_HP: + status |= SND_JACK_HEADPHONE; + break; + case AIC31XX_HSD_HS: + status |= SND_JACK_HEADSET; + break; + default: + break; + } + + if (aic31xx->jack) + snd_soc_jack_report(aic31xx->jack, status, + AIC31XX_JACK_MASK); + } + if (value & ~(AIC31XX_HPLSCDETECT | + AIC31XX_HPRSCDETECT | + AIC31XX_HSPLUG | + AIC31XX_BUTTONPRESS)) + dev_err(dev, "Unknown DAC interrupt flags: 0x%08x\n", value); + +read_overflow: + ret = regmap_read(aic31xx->regmap, AIC31XX_OFFLAG, &value); + if (ret) { + dev_err(dev, "Failed to read overflow flag: %d\n", ret); + goto exit; + } + + if (value) + handled = true; + else + goto exit; + + if (value & AIC31XX_DAC_OF_LEFT) + dev_warn(dev, "Left-channel DAC overflow has occurred\n"); + if (value & AIC31XX_DAC_OF_RIGHT) + dev_warn(dev, "Right-channel DAC overflow has occurred\n"); + if (value & AIC31XX_DAC_OF_SHIFTER) + dev_warn(dev, "DAC barrel shifter overflow has occurred\n"); + if (value & AIC31XX_ADC_OF) + dev_warn(dev, "ADC overflow has occurred\n"); + if (value & AIC31XX_ADC_OF_SHIFTER) + dev_warn(dev, "ADC barrel shifter overflow has occurred\n"); + if (value & ~(AIC31XX_DAC_OF_LEFT | + AIC31XX_DAC_OF_RIGHT | + AIC31XX_DAC_OF_SHIFTER | + AIC31XX_ADC_OF | + AIC31XX_ADC_OF_SHIFTER)) + dev_warn(dev, "Unknown overflow interrupt flags: 0x%08x\n", value); + +exit: + if (handled) + return IRQ_HANDLED; + else + return IRQ_NONE; +} + +static void aic31xx_configure_ocmv(struct aic31xx_priv *priv) +{ + struct device *dev = priv->dev; + int dvdd, avdd; + u32 value; + + if (dev->fwnode && + fwnode_property_read_u32(dev->fwnode, "ai31xx-ocmv", &value)) { + /* OCMV setting is forced by DT */ + if (value <= 3) { + priv->ocmv = value; + return; + } + } + + avdd = regulator_get_voltage(priv->supplies[3].consumer); + dvdd = regulator_get_voltage(priv->supplies[5].consumer); + + if (avdd > 3600000 || dvdd > 1950000) { + dev_warn(dev, + "Too high supply voltage(s) AVDD: %d, DVDD: %d\n", + avdd, dvdd); + } else if (avdd == 3600000 && dvdd == 1950000) { + priv->ocmv = AIC31XX_HPD_OCMV_1_8V; + } else if (avdd >= 3300000 && dvdd >= 1800000) { + priv->ocmv = AIC31XX_HPD_OCMV_1_65V; + } else if (avdd >= 3000000 && dvdd >= 1650000) { + priv->ocmv = AIC31XX_HPD_OCMV_1_5V; + } else if (avdd >= 2700000 && dvdd >= 1525000) { + priv->ocmv = AIC31XX_HPD_OCMV_1_35V; + } else { + dev_warn(dev, + "Invalid supply voltage(s) AVDD: %d, DVDD: %d\n", + avdd, dvdd); + } +} + +static const struct i2c_device_id aic31xx_i2c_id[] = { + { "tlv320aic310x", AIC3100 }, + { "tlv320aic311x", AIC3110 }, + { "tlv320aic3100", AIC3100 }, + { "tlv320aic3110", AIC3110 }, + { "tlv320aic3120", AIC3120 }, + { "tlv320aic3111", AIC3111 }, + { "tlv320dac3100", DAC3100 }, + { "tlv320dac3101", DAC3101 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, aic31xx_i2c_id); + +static int aic31xx_i2c_probe(struct i2c_client *i2c) +{ + struct aic31xx_priv *aic31xx; + unsigned int micbias_value = MICBIAS_2_0V; + const struct i2c_device_id *id = i2c_match_id(aic31xx_i2c_id, i2c); + int i, ret; + + dev_dbg(&i2c->dev, "## %s: %s codec_type = %d\n", __func__, + id->name, (int)id->driver_data); + + aic31xx = devm_kzalloc(&i2c->dev, sizeof(*aic31xx), GFP_KERNEL); + if (!aic31xx) + return -ENOMEM; + + aic31xx->regmap = devm_regmap_init_i2c(i2c, &aic31xx_i2c_regmap); + if (IS_ERR(aic31xx->regmap)) { + ret = PTR_ERR(aic31xx->regmap); + dev_err(&i2c->dev, "Failed to allocate register map: %d\n", + ret); + return ret; + } + regcache_cache_only(aic31xx->regmap, true); + + aic31xx->dev = &i2c->dev; + aic31xx->irq = i2c->irq; + + aic31xx->codec_type = id->driver_data; + + dev_set_drvdata(aic31xx->dev, aic31xx); + + fwnode_property_read_u32(aic31xx->dev->fwnode, "ai31xx-micbias-vg", + &micbias_value); + switch (micbias_value) { + case MICBIAS_2_0V: + case MICBIAS_2_5V: + case MICBIAS_AVDDV: + aic31xx->micbias_vg = micbias_value; + break; + default: + dev_err(aic31xx->dev, "Bad ai31xx-micbias-vg value %d\n", + micbias_value); + aic31xx->micbias_vg = MICBIAS_2_0V; + } + + if (dev_get_platdata(aic31xx->dev)) { + memcpy(&aic31xx->pdata, dev_get_platdata(aic31xx->dev), sizeof(aic31xx->pdata)); + aic31xx->codec_type = aic31xx->pdata.codec_type; + aic31xx->micbias_vg = aic31xx->pdata.micbias_vg; + } + + aic31xx->gpio_reset = devm_gpiod_get_optional(aic31xx->dev, "reset", + GPIOD_OUT_LOW); + if (IS_ERR(aic31xx->gpio_reset)) + return dev_err_probe(aic31xx->dev, PTR_ERR(aic31xx->gpio_reset), + "not able to acquire gpio\n"); + + 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) + return dev_err_probe(aic31xx->dev, ret, "Failed to request supplies\n"); + + aic31xx_configure_ocmv(aic31xx); + + if (aic31xx->irq > 0) { + regmap_update_bits(aic31xx->regmap, AIC31XX_GPIO1, + AIC31XX_GPIO1_FUNC_MASK, + AIC31XX_GPIO1_INT1 << + AIC31XX_GPIO1_FUNC_SHIFT); + + regmap_write(aic31xx->regmap, AIC31XX_INT1CTRL, + AIC31XX_HSPLUGDET | + AIC31XX_BUTTONPRESSDET | + AIC31XX_SC | + AIC31XX_ENGINE); + + ret = devm_request_threaded_irq(aic31xx->dev, aic31xx->irq, + NULL, aic31xx_irq, + IRQF_ONESHOT, "aic31xx-irq", + aic31xx); + if (ret) { + dev_err(aic31xx->dev, "Unable to request IRQ\n"); + return ret; + } + } + + if (aic31xx->codec_type & DAC31XX_BIT) + return devm_snd_soc_register_component(&i2c->dev, + &soc_codec_driver_aic31xx, + dac31xx_dai_driver, + ARRAY_SIZE(dac31xx_dai_driver)); + else + return devm_snd_soc_register_component(&i2c->dev, + &soc_codec_driver_aic31xx, + aic31xx_dai_driver, + ARRAY_SIZE(aic31xx_dai_driver)); +} + +static struct i2c_driver aic31xx_i2c_driver = { + .driver = { + .name = "tlv320aic31xx-codec", + .of_match_table = of_match_ptr(tlv320aic31xx_of_match), + .acpi_match_table = ACPI_PTR(aic31xx_acpi_match), + }, + .probe_new = aic31xx_i2c_probe, + .id_table = aic31xx_i2c_id, +}; +module_i2c_driver(aic31xx_i2c_driver); + +MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>"); +MODULE_DESCRIPTION("ASoC TLV320AIC31xx CODEC Driver"); +MODULE_LICENSE("GPL v2"); |