+// SPDX-License-Identifier: GPL-2.0
+// TLV320ADCX140 Sound driver
+// Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.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/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+
+#include "tlv320adcx140.h"
+
+struct adcx140_priv {
+ struct snd_soc_component *component;
+ struct regulator *supply_areg;
+ struct gpio_desc *gpio_reset;
+ struct regmap *regmap;
+ struct device *dev;
+
+ int micbias_vg;
+
+ unsigned int dai_fmt;
+ unsigned int tdm_delay;
+ unsigned int slot_width;
+};
+
+static const struct reg_default adcx140_reg_defaults[] = {
+ { ADCX140_PAGE_SELECT, 0x00 },
+ { ADCX140_SW_RESET, 0x00 },
+ { ADCX140_SLEEP_CFG, 0x00 },
+ { ADCX140_SHDN_CFG, 0x05 },
+ { ADCX140_ASI_CFG0, 0x30 },
+ { ADCX140_ASI_CFG1, 0x00 },
+ { ADCX140_ASI_CFG2, 0x00 },
+ { ADCX140_ASI_CH1, 0x00 },
+ { ADCX140_ASI_CH2, 0x01 },
+ { ADCX140_ASI_CH3, 0x02 },
+ { ADCX140_ASI_CH4, 0x03 },
+ { ADCX140_ASI_CH5, 0x04 },
+ { ADCX140_ASI_CH6, 0x05 },
+ { ADCX140_ASI_CH7, 0x06 },
+ { ADCX140_ASI_CH8, 0x07 },
+ { ADCX140_MST_CFG0, 0x02 },
+ { ADCX140_MST_CFG1, 0x48 },
+ { ADCX140_ASI_STS, 0xff },
+ { ADCX140_CLK_SRC, 0x10 },
+ { ADCX140_PDMCLK_CFG, 0x40 },
+ { ADCX140_PDM_CFG, 0x00 },
+ { ADCX140_GPIO_CFG0, 0x22 },
+ { ADCX140_GPO_CFG1, 0x00 },
+ { ADCX140_GPO_CFG2, 0x00 },
+ { ADCX140_GPO_CFG3, 0x00 },
+ { ADCX140_GPO_CFG4, 0x00 },
+ { ADCX140_GPO_VAL, 0x00 },
+ { ADCX140_GPIO_MON, 0x00 },
+ { ADCX140_GPI_CFG0, 0x00 },
+ { ADCX140_GPI_CFG1, 0x00 },
+ { ADCX140_GPI_MON, 0x00 },
+ { ADCX140_INT_CFG, 0x00 },
+ { ADCX140_INT_MASK0, 0xff },
+ { ADCX140_INT_LTCH0, 0x00 },
+ { ADCX140_BIAS_CFG, 0x00 },
+ { ADCX140_CH1_CFG0, 0x00 },
+ { ADCX140_CH1_CFG1, 0x00 },
+ { ADCX140_CH1_CFG2, 0xc9 },
+ { ADCX140_CH1_CFG3, 0x80 },
+ { ADCX140_CH1_CFG4, 0x00 },
+ { ADCX140_CH2_CFG0, 0x00 },
+ { ADCX140_CH2_CFG1, 0x00 },
+ { ADCX140_CH2_CFG2, 0xc9 },
+ { ADCX140_CH2_CFG3, 0x80 },
+ { ADCX140_CH2_CFG4, 0x00 },
+ { ADCX140_CH3_CFG0, 0x00 },
+ { ADCX140_CH3_CFG1, 0x00 },
+ { ADCX140_CH3_CFG2, 0xc9 },
+ { ADCX140_CH3_CFG3, 0x80 },
+ { ADCX140_CH3_CFG4, 0x00 },
+ { ADCX140_CH4_CFG0, 0x00 },
+ { ADCX140_CH4_CFG1, 0x00 },
+ { ADCX140_CH4_CFG2, 0xc9 },
+ { ADCX140_CH4_CFG3, 0x80 },
+ { ADCX140_CH4_CFG4, 0x00 },
+ { ADCX140_CH5_CFG2, 0xc9 },
+ { ADCX140_CH5_CFG3, 0x80 },
+ { ADCX140_CH5_CFG4, 0x00 },
+ { ADCX140_CH6_CFG2, 0xc9 },
+ { ADCX140_CH6_CFG3, 0x80 },
+ { ADCX140_CH6_CFG4, 0x00 },
+ { ADCX140_CH7_CFG2, 0xc9 },
+ { ADCX140_CH7_CFG3, 0x80 },
+ { ADCX140_CH7_CFG4, 0x00 },
+ { ADCX140_CH8_CFG2, 0xc9 },
+ { ADCX140_CH8_CFG3, 0x80 },
+ { ADCX140_CH8_CFG4, 0x00 },
+ { ADCX140_DSP_CFG0, 0x01 },
+ { ADCX140_DSP_CFG1, 0x40 },
+ { ADCX140_DRE_CFG0, 0x7b },
+ { ADCX140_IN_CH_EN, 0xf0 },
+ { ADCX140_ASI_OUT_CH_EN, 0x00 },
+ { ADCX140_PWR_CFG, 0x00 },
+ { ADCX140_DEV_STS0, 0x00 },
+ { ADCX140_DEV_STS1, 0x80 },
+};
+
+static const struct regmap_range_cfg adcx140_ranges[] = {
+ {
+ .range_min = 0,
+ .range_max = 12 * 128,
+ .selector_reg = ADCX140_PAGE_SELECT,
+ .selector_mask = 0xff,
+ .selector_shift = 0,
+ .window_start = 0,
+ .window_len = 128,
+ },
+};
+
+static bool adcx140_volatile(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case ADCX140_SW_RESET:
+ case ADCX140_DEV_STS0:
+ case ADCX140_DEV_STS1:
+ case ADCX140_ASI_STS:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config adcx140_i2c_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .reg_defaults = adcx140_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(adcx140_reg_defaults),
+ .cache_type = REGCACHE_FLAT,
+ .ranges = adcx140_ranges,
+ .num_ranges = ARRAY_SIZE(adcx140_ranges),
+ .max_register = 12 * 128,
+ .volatile_reg = adcx140_volatile,
+};
+
+/* Digital Volume control. From -100 to 27 dB in 0.5 dB steps */
+static DECLARE_TLV_DB_SCALE(dig_vol_tlv, -10000, 50, 0);
+
+/* ADC gain. From 0 to 42 dB in 1 dB steps */
+static DECLARE_TLV_DB_SCALE(adc_tlv, 0, 100, 0);
+
+static const char * const resistor_text[] = {
+ "2.5 kOhm", "10 kOhm", "20 kOhm"
+};
+
+static SOC_ENUM_SINGLE_DECL(in1_resistor_enum, ADCX140_CH1_CFG0, 2,
+ resistor_text);
+static SOC_ENUM_SINGLE_DECL(in2_resistor_enum, ADCX140_CH2_CFG0, 2,
+ resistor_text);
+static SOC_ENUM_SINGLE_DECL(in3_resistor_enum, ADCX140_CH3_CFG0, 2,
+ resistor_text);
+static SOC_ENUM_SINGLE_DECL(in4_resistor_enum, ADCX140_CH4_CFG0, 2,
+ resistor_text);
+
+static const struct snd_kcontrol_new in1_resistor_controls[] = {
+ SOC_DAPM_ENUM("CH1 Resistor Select", in1_resistor_enum),
+};
+static const struct snd_kcontrol_new in2_resistor_controls[] = {
+ SOC_DAPM_ENUM("CH2 Resistor Select", in2_resistor_enum),
+};
+static const struct snd_kcontrol_new in3_resistor_controls[] = {
+ SOC_DAPM_ENUM("CH3 Resistor Select", in3_resistor_enum),
+};
+static const struct snd_kcontrol_new in4_resistor_controls[] = {
+ SOC_DAPM_ENUM("CH4 Resistor Select", in4_resistor_enum),
+};
+
+/* Analog/Digital Selection */
+static const char *adcx140_mic_sel_text[] = {"Analog", "Line In", "Digital"};
+static const char *adcx140_analog_sel_text[] = {"Analog", "Line In"};
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic1p_enum,
+ ADCX140_CH1_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic1p_control =
+SOC_DAPM_ENUM("MIC1P MUX", adcx140_mic1p_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic1_analog_enum,
+ ADCX140_CH1_CFG0, 7,
+ adcx140_analog_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic1_analog_control =
+SOC_DAPM_ENUM("MIC1 Analog MUX", adcx140_mic1_analog_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic1m_enum,
+ ADCX140_CH1_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic1m_control =
+SOC_DAPM_ENUM("MIC1M MUX", adcx140_mic1m_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic2p_enum,
+ ADCX140_CH2_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic2p_control =
+SOC_DAPM_ENUM("MIC2P MUX", adcx140_mic2p_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic2_analog_enum,
+ ADCX140_CH2_CFG0, 7,
+ adcx140_analog_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic2_analog_control =
+SOC_DAPM_ENUM("MIC2 Analog MUX", adcx140_mic2_analog_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic2m_enum,
+ ADCX140_CH2_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic2m_control =
+SOC_DAPM_ENUM("MIC2M MUX", adcx140_mic2m_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic3p_enum,
+ ADCX140_CH3_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic3p_control =
+SOC_DAPM_ENUM("MIC3P MUX", adcx140_mic3p_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic3_analog_enum,
+ ADCX140_CH3_CFG0, 7,
+ adcx140_analog_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic3_analog_control =
+SOC_DAPM_ENUM("MIC3 Analog MUX", adcx140_mic3_analog_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic3m_enum,
+ ADCX140_CH3_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic3m_control =
+SOC_DAPM_ENUM("MIC3M MUX", adcx140_mic3m_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic4p_enum,
+ ADCX140_CH4_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic4p_control =
+SOC_DAPM_ENUM("MIC4P MUX", adcx140_mic4p_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic4_analog_enum,
+ ADCX140_CH4_CFG0, 7,
+ adcx140_analog_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic4_analog_control =
+SOC_DAPM_ENUM("MIC4 Analog MUX", adcx140_mic4_analog_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic4m_enum,
+ ADCX140_CH4_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic4m_control =
+SOC_DAPM_ENUM("MIC4M MUX", adcx140_mic4m_enum);
+
+static const struct snd_kcontrol_new adcx140_dapm_ch1_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 7, 1, 0);
+static const struct snd_kcontrol_new adcx140_dapm_ch2_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 6, 1, 0);
+static const struct snd_kcontrol_new adcx140_dapm_ch3_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 5, 1, 0);
+static const struct snd_kcontrol_new adcx140_dapm_ch4_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 4, 1, 0);
+
+/* Output Mixer */
+static const struct snd_kcontrol_new adcx140_output_mixer_controls[] = {
+ SOC_DAPM_SINGLE("Digital CH1 Switch", 0, 0, 0, 0),
+ SOC_DAPM_SINGLE("Digital CH2 Switch", 0, 0, 0, 0),
+ SOC_DAPM_SINGLE("Digital CH3 Switch", 0, 0, 0, 0),
+ SOC_DAPM_SINGLE("Digital CH4 Switch", 0, 0, 0, 0),
+};
+
+static const struct snd_soc_dapm_widget adcx140_dapm_widgets[] = {
+ /* Analog Differential Inputs */
+ SND_SOC_DAPM_INPUT("MIC1P"),
+ SND_SOC_DAPM_INPUT("MIC1M"),
+ SND_SOC_DAPM_INPUT("MIC2P"),
+ SND_SOC_DAPM_INPUT("MIC2M"),
+ SND_SOC_DAPM_INPUT("MIC3P"),
+ SND_SOC_DAPM_INPUT("MIC3M"),
+ SND_SOC_DAPM_INPUT("MIC4P"),
+ SND_SOC_DAPM_INPUT("MIC4M"),
+
+ SND_SOC_DAPM_OUTPUT("CH1_OUT"),
+ SND_SOC_DAPM_OUTPUT("CH2_OUT"),
+ SND_SOC_DAPM_OUTPUT("CH3_OUT"),
+ SND_SOC_DAPM_OUTPUT("CH4_OUT"),
+ SND_SOC_DAPM_OUTPUT("CH5_OUT"),
+ SND_SOC_DAPM_OUTPUT("CH6_OUT"),
+ SND_SOC_DAPM_OUTPUT("CH7_OUT"),
+ SND_SOC_DAPM_OUTPUT("CH8_OUT"),
+
+ SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
+ &adcx140_output_mixer_controls[0],
+ ARRAY_SIZE(adcx140_output_mixer_controls)),
+
+ /* Input Selection to MIC_PGA */
+ SND_SOC_DAPM_MUX("MIC1P Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic1p_control),
+ SND_SOC_DAPM_MUX("MIC2P Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic2p_control),
+ SND_SOC_DAPM_MUX("MIC3P Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic3p_control),
+ SND_SOC_DAPM_MUX("MIC4P Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic4p_control),
+
+ /* Input Selection to MIC_PGA */
+ SND_SOC_DAPM_MUX("MIC1 Analog Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic1_analog_control),
+ SND_SOC_DAPM_MUX("MIC2 Analog Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic2_analog_control),
+ SND_SOC_DAPM_MUX("MIC3 Analog Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic3_analog_control),
+ SND_SOC_DAPM_MUX("MIC4 Analog Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic4_analog_control),
+
+ SND_SOC_DAPM_MUX("MIC1M Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic1m_control),
+ SND_SOC_DAPM_MUX("MIC2M Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic2m_control),
+ SND_SOC_DAPM_MUX("MIC3M Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic3m_control),
+ SND_SOC_DAPM_MUX("MIC4M Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic4m_control),
+
+ SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH1", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH2", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH3", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH4", SND_SOC_NOPM, 0, 0, NULL, 0),
+
+ SND_SOC_DAPM_ADC("CH1_ADC", "CH1 Capture", ADCX140_IN_CH_EN, 7, 0),
+ SND_SOC_DAPM_ADC("CH2_ADC", "CH2 Capture", ADCX140_IN_CH_EN, 6, 0),
+ SND_SOC_DAPM_ADC("CH3_ADC", "CH3 Capture", ADCX140_IN_CH_EN, 5, 0),
+ SND_SOC_DAPM_ADC("CH4_ADC", "CH4 Capture", ADCX140_IN_CH_EN, 4, 0),
+
+ SND_SOC_DAPM_SWITCH("CH1_ASI_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch1_en_switch),
+ SND_SOC_DAPM_SWITCH("CH2_ASI_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch2_en_switch),
+ SND_SOC_DAPM_SWITCH("CH3_ASI_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch3_en_switch),
+ SND_SOC_DAPM_SWITCH("CH4_ASI_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch4_en_switch),
+
+ SND_SOC_DAPM_MUX("IN1 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
+ in1_resistor_controls),
+ SND_SOC_DAPM_MUX("IN2 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
+ in2_resistor_controls),
+ SND_SOC_DAPM_MUX("IN3 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
+ in3_resistor_controls),
+ SND_SOC_DAPM_MUX("IN4 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
+ in4_resistor_controls),
+};
+
+static const struct snd_soc_dapm_route adcx140_audio_map[] = {
+ /* Outputs */
+ {"CH1_OUT", NULL, "Output Mixer"},
+ {"CH2_OUT", NULL, "Output Mixer"},
+ {"CH3_OUT", NULL, "Output Mixer"},
+ {"CH4_OUT", NULL, "Output Mixer"},
+
+ {"CH1_ASI_EN", "Switch", "CH1_ADC"},
+ {"CH2_ASI_EN", "Switch", "CH2_ADC"},
+ {"CH3_ASI_EN", "Switch", "CH3_ADC"},
+ {"CH4_ASI_EN", "Switch", "CH4_ADC"},
+
+ /* Mic input */
+ {"CH1_ADC", NULL, "MIC_GAIN_CTL_CH1"},
+ {"CH2_ADC", NULL, "MIC_GAIN_CTL_CH2"},
+ {"CH3_ADC", NULL, "MIC_GAIN_CTL_CH3"},
+ {"CH4_ADC", NULL, "MIC_GAIN_CTL_CH4"},
+
+ {"MIC_GAIN_CTL_CH1", NULL, "IN1 Analog Mic Resistor"},
+ {"MIC_GAIN_CTL_CH1", NULL, "IN1 Analog Mic Resistor"},
+ {"MIC_GAIN_CTL_CH2", NULL, "IN2 Analog Mic Resistor"},
+ {"MIC_GAIN_CTL_CH2", NULL, "IN2 Analog Mic Resistor"},
+ {"MIC_GAIN_CTL_CH3", NULL, "IN3 Analog Mic Resistor"},
+ {"MIC_GAIN_CTL_CH3", NULL, "IN3 Analog Mic Resistor"},
+ {"MIC_GAIN_CTL_CH4", NULL, "IN4 Analog Mic Resistor"},
+ {"MIC_GAIN_CTL_CH4", NULL, "IN4 Analog Mic Resistor"},
+
+ {"IN1 Analog Mic Resistor", "2.5 kOhm", "MIC1P Input Mux"},
+ {"IN1 Analog Mic Resistor", "10 kOhm", "MIC1P Input Mux"},
+ {"IN1 Analog Mic Resistor", "20 kOhm", "MIC1P Input Mux"},
+
+ {"IN1 Analog Mic Resistor", "2.5 kOhm", "MIC1M Input Mux"},
+ {"IN1 Analog Mic Resistor", "10 kOhm", "MIC1M Input Mux"},
+ {"IN1 Analog Mic Resistor", "20 kOhm", "MIC1M Input Mux"},
+
+ {"IN2 Analog Mic Resistor", "2.5 kOhm", "MIC2P Input Mux"},
+ {"IN2 Analog Mic Resistor", "10 kOhm", "MIC2P Input Mux"},
+ {"IN2 Analog Mic Resistor", "20 kOhm", "MIC2P Input Mux"},
+
+ {"IN2 Analog Mic Resistor", "2.5 kOhm", "MIC2M Input Mux"},
+ {"IN2 Analog Mic Resistor", "10 kOhm", "MIC2M Input Mux"},
+ {"IN2 Analog Mic Resistor", "20 kOhm", "MIC2M Input Mux"},
+
+ {"IN3 Analog Mic Resistor", "2.5 kOhm", "MIC3P Input Mux"},
+ {"IN3 Analog Mic Resistor", "10 kOhm", "MIC3P Input Mux"},
+ {"IN3 Analog Mic Resistor", "20 kOhm", "MIC3P Input Mux"},
+
+ {"IN3 Analog Mic Resistor", "2.5 kOhm", "MIC3M Input Mux"},
+ {"IN3 Analog Mic Resistor", "10 kOhm", "MIC3M Input Mux"},
+ {"IN3 Analog Mic Resistor", "20 kOhm", "MIC3M Input Mux"},
+
+ {"IN4 Analog Mic Resistor", "2.5 kOhm", "MIC4P Input Mux"},
+ {"IN4 Analog Mic Resistor", "10 kOhm", "MIC4P Input Mux"},
+ {"IN4 Analog Mic Resistor", "20 kOhm", "MIC4P Input Mux"},
+
+ {"IN4 Analog Mic Resistor", "2.5 kOhm", "MIC4M Input Mux"},
+ {"IN4 Analog Mic Resistor", "10 kOhm", "MIC4M Input Mux"},
+ {"IN4 Analog Mic Resistor", "20 kOhm", "MIC4M Input Mux"},
+
+ {"MIC1 Analog Mux", "Line In", "MIC1P"},
+ {"MIC2 Analog Mux", "Line In", "MIC2P"},
+ {"MIC3 Analog Mux", "Line In", "MIC3P"},
+ {"MIC4 Analog Mux", "Line In", "MIC4P"},
+
+ {"MIC1P Input Mux", "Analog", "MIC1P"},
+ {"MIC1M Input Mux", "Analog", "MIC1M"},
+ {"MIC2P Input Mux", "Analog", "MIC2P"},
+ {"MIC2M Input Mux", "Analog", "MIC2M"},
+ {"MIC3P Input Mux", "Analog", "MIC3P"},
+ {"MIC3M Input Mux", "Analog", "MIC3M"},
+ {"MIC4P Input Mux", "Analog", "MIC4P"},
+ {"MIC4M Input Mux", "Analog", "MIC4M"},
+};
+
+static const struct snd_kcontrol_new adcx140_snd_controls[] = {
+ SOC_SINGLE_TLV("Analog CH1 Mic Gain Volume", ADCX140_CH1_CFG1, 2, 42, 0,
+ adc_tlv),
+ SOC_SINGLE_TLV("Analog CH2 Mic Gain Volume", ADCX140_CH1_CFG2, 2, 42, 0,
+ adc_tlv),
+ SOC_SINGLE_TLV("Analog CH3 Mic Gain Volume", ADCX140_CH1_CFG3, 2, 42, 0,
+ adc_tlv),
+ SOC_SINGLE_TLV("Analog CH4 Mic Gain Volume", ADCX140_CH1_CFG4, 2, 42, 0,
+ adc_tlv),
+
+ SOC_SINGLE_TLV("Digital CH1 Out Volume", ADCX140_CH1_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_SINGLE_TLV("Digital CH2 Out Volume", ADCX140_CH2_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_SINGLE_TLV("Digital CH3 Out Volume", ADCX140_CH3_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_SINGLE_TLV("Digital CH4 Out Volume", ADCX140_CH4_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_SINGLE_TLV("Digital CH5 Out Volume", ADCX140_CH5_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_SINGLE_TLV("Digital CH6 Out Volume", ADCX140_CH6_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_SINGLE_TLV("Digital CH7 Out Volume", ADCX140_CH7_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_SINGLE_TLV("Digital CH8 Out Volume", ADCX140_CH8_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+};
+
+static int adcx140_reset(struct adcx140_priv *adcx140)
+{
+ int ret = 0;
+
+ if (adcx140->gpio_reset) {
+ gpiod_direction_output(adcx140->gpio_reset, 0);
+ /* 8.4.1: wait for hw shutdown (25ms) + >= 1ms */
+ usleep_range(30000, 100000);
+ gpiod_direction_output(adcx140->gpio_reset, 1);
+ } else {
+ ret = regmap_write(adcx140->regmap, ADCX140_SW_RESET,
+ ADCX140_RESET);
+ }
+
+ /* 8.4.2: wait >= 10 ms after entering sleep mode. */
+ usleep_range(10000, 100000);
+
+ return 0;
+}
+
+static int adcx140_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;
+ u8 data = 0;
+
+ switch (params_width(params)) {
+ case 16:
+ data = ADCX140_16_BIT_WORD;
+ break;
+ case 20:
+ data = ADCX140_20_BIT_WORD;
+ break;
+ case 24:
+ data = ADCX140_24_BIT_WORD;
+ break;
+ case 32:
+ data = ADCX140_32_BIT_WORD;
+ break;
+ default:
+ dev_err(component->dev, "%s: Unsupported width %d\n",
+ __func__, params_width(params));
+ return -EINVAL;
+ }
+
+ snd_soc_component_update_bits(component, ADCX140_ASI_CFG0,
+ ADCX140_WORD_LEN_MSK, data);
+
+ return 0;
+}
+
+static int adcx140_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
+ u8 iface_reg1 = 0;
+ u8 iface_reg2 = 0;
+
+ /* set master/slave audio interface */
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ iface_reg2 |= ADCX140_BCLK_FSYNC_MASTER;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ break;
+ case SND_SOC_DAIFMT_CBS_CFM:
+ case SND_SOC_DAIFMT_CBM_CFS:
+ default:
+ dev_err(component->dev, "Invalid DAI master/slave interface\n");
+ return -EINVAL;
+ }
+
+ /* signal polarity */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_IF:
+ iface_reg1 |= ADCX140_FSYNCINV_BIT;
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ iface_reg1 |= ADCX140_BCLKINV_BIT | ADCX140_FSYNCINV_BIT;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ iface_reg1 |= ADCX140_BCLKINV_BIT;
+ break;
+ case SND_SOC_DAIFMT_NB_NF:
+ 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:
+ iface_reg1 |= ADCX140_I2S_MODE_BIT;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ iface_reg1 |= ADCX140_LEFT_JUST_BIT;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ case SND_SOC_DAIFMT_DSP_B:
+ break;
+ default:
+ dev_err(component->dev, "Invalid DAI interface format\n");
+ return -EINVAL;
+ }
+
+ adcx140->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
+
+ snd_soc_component_update_bits(component, ADCX140_ASI_CFG0,
+ ADCX140_FSYNCINV_BIT |
+ ADCX140_BCLKINV_BIT |
+ ADCX140_ASI_FORMAT_MSK,
+ iface_reg1);
+ snd_soc_component_update_bits(component, ADCX140_MST_CFG0,
+ ADCX140_BCLK_FSYNC_MASTER, iface_reg2);
+
+ return 0;
+}
+
+static int adcx140_set_dai_tdm_slot(struct snd_soc_dai *codec_dai,
+ unsigned int tx_mask, unsigned int rx_mask,
+ int slots, int slot_width)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
+ unsigned int lsb;
+
+ if (tx_mask != rx_mask) {
+ dev_err(component->dev, "tx and rx masks must be symmetric\n");
+ return -EINVAL;
+ }
+
+ /* TDM based on DSP mode requires slots to be adjacent */
+ lsb = __ffs(tx_mask);
+ if ((lsb + 1) != __fls(tx_mask)) {
+ dev_err(component->dev, "Invalid mask, slots must be adjacent\n");
+ return -EINVAL;
+ }
+
+ switch (slot_width) {
+ case 16:
+ case 20:
+ case 24:
+ case 32:
+ break;
+ default:
+ dev_err(component->dev, "Unsupported slot width %d\n", slot_width);
+ return -EINVAL;
+ }
+
+ adcx140->tdm_delay = lsb;
+ adcx140->slot_width = slot_width;
+
+ return 0;
+}
+
+static int adcx140_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
+ int offset = 0;
+ int width = adcx140->slot_width;
+
+ if (!width)
+ width = substream->runtime->sample_bits;
+
+ /* TDM slot selection only valid in DSP_A/_B mode */
+ if (adcx140->dai_fmt == SND_SOC_DAIFMT_DSP_A)
+ offset += (adcx140->tdm_delay * width + 1);
+ else if (adcx140->dai_fmt == SND_SOC_DAIFMT_DSP_B)
+ offset += adcx140->tdm_delay * width;
+
+ /* Configure data offset */
+ snd_soc_component_update_bits(component, ADCX140_ASI_CFG1,
+ ADCX140_TX_OFFSET_MASK, offset);
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops adcx140_dai_ops = {
+ .hw_params = adcx140_hw_params,
+ .set_fmt = adcx140_set_dai_fmt,
+ .prepare = adcx140_prepare,
+ .set_tdm_slot = adcx140_set_dai_tdm_slot,
+};
+
+static int adcx140_codec_probe(struct snd_soc_component *component)
+{
+ struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
+ int sleep_cfg_val = ADCX140_WAKE_DEV;
+ u8 bias_source;
+ u8 vref_source;
+ int ret;
+
+ ret = device_property_read_u8(adcx140->dev, "ti,mic-bias-source",
+ &bias_source);
+ if (ret)
+ bias_source = ADCX140_MIC_BIAS_VAL_VREF;
+
+ if (bias_source != ADCX140_MIC_BIAS_VAL_VREF &&
+ bias_source != ADCX140_MIC_BIAS_VAL_VREF_1096 &&
+ bias_source != ADCX140_MIC_BIAS_VAL_AVDD) {
+ dev_err(adcx140->dev, "Mic Bias source value is invalid\n");
+ return -EINVAL;
+ }
+
+ ret = device_property_read_u8(adcx140->dev, "ti,vref-source",
+ &vref_source);
+ if (ret)
+ vref_source = ADCX140_MIC_BIAS_VREF_275V;
+
+ if (vref_source != ADCX140_MIC_BIAS_VREF_275V &&
+ vref_source != ADCX140_MIC_BIAS_VREF_25V &&
+ vref_source != ADCX140_MIC_BIAS_VREF_1375V) {
+ dev_err(adcx140->dev, "Mic Bias source value is invalid\n");
+ return -EINVAL;
+ }
+
+ bias_source |= vref_source;
+
+ ret = adcx140_reset(adcx140);
+ if (ret)
+ goto out;
+
+ if(adcx140->supply_areg == NULL)
+ sleep_cfg_val |= ADCX140_AREG_INTERNAL;
+
+ ret = regmap_write(adcx140->regmap, ADCX140_SLEEP_CFG, sleep_cfg_val);
+ if (ret) {
+ dev_err(adcx140->dev, "setting sleep config failed %d\n", ret);
+ goto out;
+ }
+
+ /* 8.4.3: Wait >= 1ms after entering active mode. */
+ usleep_range(1000, 100000);
+
+ ret = regmap_update_bits(adcx140->regmap, ADCX140_BIAS_CFG,
+ ADCX140_MIC_BIAS_VAL_MSK |
+ ADCX140_MIC_BIAS_VREF_MSK, bias_source);
+ if (ret)
+ dev_err(adcx140->dev, "setting MIC bias failed %d\n", ret);
+out:
+ return ret;
+}
+
+static int adcx140_set_bias_level(struct snd_soc_component *component,
+ enum snd_soc_bias_level level)
+{
+ struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
+ int pwr_cfg = 0;
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ case SND_SOC_BIAS_PREPARE:
+ case SND_SOC_BIAS_STANDBY:
+ pwr_cfg = ADCX140_PWR_CFG_BIAS_PDZ | ADCX140_PWR_CFG_PLL_PDZ |
+ ADCX140_PWR_CFG_ADC_PDZ;
+ break;
+ case SND_SOC_BIAS_OFF:
+ pwr_cfg = 0x0;
+ break;
+ }
+
+ return regmap_write(adcx140->regmap, ADCX140_PWR_CFG, pwr_cfg);
+}
+
+static const struct snd_soc_component_driver soc_codec_driver_adcx140 = {
+ .probe = adcx140_codec_probe,
+ .set_bias_level = adcx140_set_bias_level,
+ .controls = adcx140_snd_controls,
+ .num_controls = ARRAY_SIZE(adcx140_snd_controls),
+ .dapm_widgets = adcx140_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(adcx140_dapm_widgets),
+ .dapm_routes = adcx140_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(adcx140_audio_map),
+ .suspend_bias_off = 1,
+ .idle_bias_on = 0,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+ .non_legacy_dai_naming = 1,
+};
+
+static struct snd_soc_dai_driver adcx140_dai_driver[] = {
+ {
+ .name = "tlv320adcx140-codec",
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 2,
+ .channels_max = ADCX140_MAX_CHANNELS,
+ .rates = ADCX140_RATES,
+ .formats = ADCX140_FORMATS,
+ },
+ .ops = &adcx140_dai_ops,
+ .symmetric_rates = 1,
+ }
+};
+
+static const struct of_device_id tlv320adcx140_of_match[] = {
+ { .compatible = "ti,tlv320adc3140" },
+ { .compatible = "ti,tlv320adc5140" },
+ { .compatible = "ti,tlv320adc6140" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, tlv320adcx140_of_match);
+
+static int adcx140_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct adcx140_priv *adcx140;
+ int ret;
+
+ adcx140 = devm_kzalloc(&i2c->dev, sizeof(*adcx140), GFP_KERNEL);
+ if (!adcx140)
+ return -ENOMEM;
+
+ adcx140->gpio_reset = devm_gpiod_get_optional(adcx140->dev,
+ "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(adcx140->gpio_reset))
+ dev_info(&i2c->dev, "Reset GPIO not defined\n");
+
+ adcx140->supply_areg = devm_regulator_get_optional(adcx140->dev,
+ "areg");
+ if (IS_ERR(adcx140->supply_areg)) {
+ if (PTR_ERR(adcx140->supply_areg) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ else
+ adcx140->supply_areg = NULL;
+ } else {
+ ret = regulator_enable(adcx140->supply_areg);
+ if (ret) {
+ dev_err(adcx140->dev, "Failed to enable areg\n");
+ return ret;
+ }
+ }
+
+ adcx140->regmap = devm_regmap_init_i2c(i2c, &adcx140_i2c_regmap);
+ if (IS_ERR(adcx140->regmap)) {
+ ret = PTR_ERR(adcx140->regmap);
+ dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+ adcx140->dev = &i2c->dev;
+ i2c_set_clientdata(i2c, adcx140);
+
+ return devm_snd_soc_register_component(&i2c->dev,
+ &soc_codec_driver_adcx140,
+ adcx140_dai_driver, 1);
+}
+
+static const struct i2c_device_id adcx140_i2c_id[] = {
+ { "tlv320adc3140", 0 },
+ { "tlv320adc5140", 1 },
+ { "tlv320adc6140", 2 },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, adcx140_i2c_id);
+
+static struct i2c_driver adcx140_i2c_driver = {
+ .driver = {
+ .name = "tlv320adcx140-codec",
+ .of_match_table = of_match_ptr(tlv320adcx140_of_match),
+ },
+ .probe = adcx140_i2c_probe,
+ .id_table = adcx140_i2c_id,
+};
+module_i2c_driver(adcx140_i2c_driver);
+
+MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
+MODULE_DESCRIPTION("ASoC TLV320ADCX140 CODEC Driver");
+MODULE_LICENSE("GPL v2");
projects / platform / kernel / linux-starfive.git / commitdiff