1 // SPDX-License-Identifier: GPL-2.0
3 // Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com/
35 	unsigned int dai_fmt;
36 	unsigned int tdm_delay;
37 	unsigned int slot_width;
41 	"ti,gpo-config-1",
42 	"ti,gpo-config-2",
43 	"ti,gpo-config-3",
44 	"ti,gpo-config-4",
138 static bool adcx140_volatile(struct device *dev, unsigned int reg)  in adcx140_volatile()
163 /* Digital Volume control. From -100 to 27 dB in 0.5 dB steps */
164 static DECLARE_TLV_DB_SCALE(dig_vol_tlv, -10050, 50, 0);
169 /* DRE Level. From -12 dB to -66 dB in 1 dB steps */
170 static DECLARE_TLV_DB_SCALE(dre_thresh_tlv, -6600, 100, 0);
174 /* AGC Level. From -6 dB to -36 dB in 2 dB steps */
175 static DECLARE_TLV_DB_SCALE(agc_thresh_tlv, -3600, 200, 0);
180 	"Linear Phase", "Low Latency", "Ultra-low Latency"
455 	SND_SOC_DAPM_MUX("IN1 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
457 	SND_SOC_DAPM_MUX("IN2 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
459 	SND_SOC_DAPM_MUX("IN3 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
461 	SND_SOC_DAPM_MUX("IN4 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
499 	{"Decimation Filter", "Ultra-low Latency", "DRE_ENABLE"},
511 	/* Mic input */
517 	{"MIC_GAIN_CTL_CH1", NULL, "IN1 Analog Mic Resistor"},
518 	{"MIC_GAIN_CTL_CH1", NULL, "IN1 Analog Mic Resistor"},
519 	{"MIC_GAIN_CTL_CH2", NULL, "IN2 Analog Mic Resistor"},
520 	{"MIC_GAIN_CTL_CH2", NULL, "IN2 Analog Mic Resistor"},
521 	{"MIC_GAIN_CTL_CH3", NULL, "IN3 Analog Mic Resistor"},
522 	{"MIC_GAIN_CTL_CH3", NULL, "IN3 Analog Mic Resistor"},
523 	{"MIC_GAIN_CTL_CH4", NULL, "IN4 Analog Mic Resistor"},
524 	{"MIC_GAIN_CTL_CH4", NULL, "IN4 Analog Mic Resistor"},
526 	{"IN1 Analog Mic Resistor", "2.5 kOhm", "MIC1P Input Mux"},
527 	{"IN1 Analog Mic Resistor", "10 kOhm", "MIC1P Input Mux"},
528 	{"IN1 Analog Mic Resistor", "20 kOhm", "MIC1P Input Mux"},
530 	{"IN1 Analog Mic Resistor", "2.5 kOhm", "MIC1M Input Mux"},
531 	{"IN1 Analog Mic Resistor", "10 kOhm", "MIC1M Input Mux"},
532 	{"IN1 Analog Mic Resistor", "20 kOhm", "MIC1M Input Mux"},
534 	{"IN2 Analog Mic Resistor", "2.5 kOhm", "MIC2P Input Mux"},
535 	{"IN2 Analog Mic Resistor", "10 kOhm", "MIC2P Input Mux"},
536 	{"IN2 Analog Mic Resistor", "20 kOhm", "MIC2P Input Mux"},
538 	{"IN2 Analog Mic Resistor", "2.5 kOhm", "MIC2M Input Mux"},
539 	{"IN2 Analog Mic Resistor", "10 kOhm", "MIC2M Input Mux"},
540 	{"IN2 Analog Mic Resistor", "20 kOhm", "MIC2M Input Mux"},
542 	{"IN3 Analog Mic Resistor", "2.5 kOhm", "MIC3P Input Mux"},
543 	{"IN3 Analog Mic Resistor", "10 kOhm", "MIC3P Input Mux"},
544 	{"IN3 Analog Mic Resistor", "20 kOhm", "MIC3P Input Mux"},
546 	{"IN3 Analog Mic Resistor", "2.5 kOhm", "MIC3M Input Mux"},
547 	{"IN3 Analog Mic Resistor", "10 kOhm", "MIC3M Input Mux"},
548 	{"IN3 Analog Mic Resistor", "20 kOhm", "MIC3M Input Mux"},
550 	{"IN4 Analog Mic Resistor", "2.5 kOhm", "MIC4P Input Mux"},
551 	{"IN4 Analog Mic Resistor", "10 kOhm", "MIC4P Input Mux"},
552 	{"IN4 Analog Mic Resistor", "20 kOhm", "MIC4P Input Mux"},
554 	{"IN4 Analog Mic Resistor", "2.5 kOhm", "MIC4M Input Mux"},
555 	{"IN4 Analog Mic Resistor", "10 kOhm", "MIC4M Input Mux"},
556 	{"IN4 Analog Mic Resistor", "20 kOhm", "MIC4M Input Mux"},
597 	SOC_SINGLE_TLV("Analog CH1 Mic Gain Volume", ADCX140_CH1_CFG1, 2, 42, 0,
599 	SOC_SINGLE_TLV("Analog CH2 Mic Gain Volume", ADCX140_CH2_CFG1, 2, 42, 0,
601 	SOC_SINGLE_TLV("Analog CH3 Mic Gain Volume", ADCX140_CH3_CFG1, 2, 42, 0,
603 	SOC_SINGLE_TLV("Analog CH4 Mic Gain Volume", ADCX140_CH4_CFG1, 2, 42, 0,
634 static int adcx140_reset(struct adcx140_priv *adcx140)  in adcx140_reset()
636 	int ret = 0;  in adcx140_reset()
638 	if (adcx140->gpio_reset) {  in adcx140_reset()
639 		gpiod_direction_output(adcx140->gpio_reset, 0);  in adcx140_reset()
642 		gpiod_direction_output(adcx140->gpio_reset, 1);  in adcx140_reset()
644 		ret = regmap_write(adcx140->regmap, ADCX140_SW_RESET,  in adcx140_reset()
656 	int pwr_ctrl = 0;  in adcx140_pwr_ctrl()
661 	if (adcx140->micbias_vg && power_state)  in adcx140_pwr_ctrl()
664 	regmap_update_bits(adcx140->regmap, ADCX140_PWR_CFG,  in adcx140_pwr_ctrl()
668 static int adcx140_hw_params(struct snd_pcm_substream *substream,  in adcx140_hw_params()
672 	struct snd_soc_component *component = dai->component;  in adcx140_hw_params()
690 		dev_err(component->dev, "%s: Unsupported width %d\n",  in adcx140_hw_params()
692 		return -EINVAL;  in adcx140_hw_params()
705 static int adcx140_set_dai_fmt(struct snd_soc_dai *codec_dai,  in adcx140_set_dai_fmt()
706 			       unsigned int fmt)  in adcx140_set_dai_fmt()
708 	struct snd_soc_component *component = codec_dai->component;  in adcx140_set_dai_fmt()
712 	int offset = 0;  in adcx140_set_dai_fmt()
725 		dev_err(component->dev, "Invalid DAI master/slave interface\n");  in adcx140_set_dai_fmt()
726 		return -EINVAL;  in adcx140_set_dai_fmt()
745 		dev_err(component->dev, "Invalid DAI interface format\n");  in adcx140_set_dai_fmt()
746 		return -EINVAL;  in adcx140_set_dai_fmt()
761 		dev_err(component->dev, "Invalid DAI clock signal polarity\n");  in adcx140_set_dai_fmt()
762 		return -EINVAL;  in adcx140_set_dai_fmt()
768 	adcx140->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;  in adcx140_set_dai_fmt()
789 static int adcx140_set_dai_tdm_slot(struct snd_soc_dai *codec_dai,  in adcx140_set_dai_tdm_slot()
790 				  unsigned int tx_mask, unsigned int rx_mask,  in adcx140_set_dai_tdm_slot()
791 				  int slots, int slot_width)  in adcx140_set_dai_tdm_slot()
793 	struct snd_soc_component *component = codec_dai->component;  in adcx140_set_dai_tdm_slot()
795 	unsigned int lsb;  in adcx140_set_dai_tdm_slot()
800 		dev_err(component->dev, "Invalid mask, slots must be adjacent\n");  in adcx140_set_dai_tdm_slot()
801 		return -EINVAL;  in adcx140_set_dai_tdm_slot()
811 		dev_err(component->dev, "Unsupported slot width %d\n", slot_width);  in adcx140_set_dai_tdm_slot()
812 		return -EINVAL;  in adcx140_set_dai_tdm_slot()
815 	adcx140->tdm_delay = lsb;  in adcx140_set_dai_tdm_slot()
816 	adcx140->slot_width = slot_width;  in adcx140_set_dai_tdm_slot()
827 static int adcx140_configure_gpo(struct adcx140_priv *adcx140)  in adcx140_configure_gpo()
831 	int ret;  in adcx140_configure_gpo()
832 	int i;  in adcx140_configure_gpo()
835 		ret = device_property_read_u32_array(adcx140->dev,  in adcx140_configure_gpo()
843 			dev_err(adcx140->dev, "GPO%d config out of range\n", i + 1);  in adcx140_configure_gpo()
844 			return -EINVAL;  in adcx140_configure_gpo()
848 			dev_err(adcx140->dev, "GPO%d drive out of range\n", i + 1);  in adcx140_configure_gpo()
849 			return -EINVAL;  in adcx140_configure_gpo()
854 		ret = regmap_write(adcx140->regmap, ADCX140_GPO_CFG0 + i,  in adcx140_configure_gpo()
864 static int adcx140_configure_gpio(struct adcx140_priv *adcx140)  in adcx140_configure_gpio()
866 	int gpio_count = 0;  in adcx140_configure_gpio()
869 	int ret;  in adcx140_configure_gpio()
871 	gpio_count = device_property_count_u32(adcx140->dev,  in adcx140_configure_gpio()
872 			"ti,gpio-config");  in adcx140_configure_gpio()
877 		return -EINVAL;  in adcx140_configure_gpio()
879 	ret = device_property_read_u32_array(adcx140->dev, "ti,gpio-config",  in adcx140_configure_gpio()
885 		dev_err(adcx140->dev, "GPIO config out of range\n");  in adcx140_configure_gpio()
886 		return -EINVAL;  in adcx140_configure_gpio()
890 		dev_err(adcx140->dev, "GPIO drive out of range\n");  in adcx140_configure_gpio()
891 		return -EINVAL;  in adcx140_configure_gpio()
897 	return regmap_write(adcx140->regmap, ADCX140_GPIO_CFG0, gpio_output_val);  in adcx140_configure_gpio()
900 static int adcx140_codec_probe(struct snd_soc_component *component)  in adcx140_codec_probe()
903 	int sleep_cfg_val = ADCX140_WAKE_DEV;  in adcx140_codec_probe()
907 	int pdm_count;  in adcx140_codec_probe()
910 	int gpi_count;  in adcx140_codec_probe()
913 	int i;  in adcx140_codec_probe()
914 	int ret;  in adcx140_codec_probe()
917 	ret = device_property_read_u32(adcx140->dev, "ti,mic-bias-source",  in adcx140_codec_probe()
921 		adcx140->micbias_vg = false;  in adcx140_codec_probe()
923 		adcx140->micbias_vg = true;  in adcx140_codec_probe()
926 	ret = device_property_read_u32(adcx140->dev, "ti,vref-source",  in adcx140_codec_probe()
932 		dev_err(adcx140->dev, "Mic Bias source value is invalid\n");  in adcx140_codec_probe()
933 		return -EINVAL;  in adcx140_codec_probe()
942 	if (adcx140->supply_areg == NULL)  in adcx140_codec_probe()
945 	ret = regmap_write(adcx140->regmap, ADCX140_SLEEP_CFG, sleep_cfg_val);  in adcx140_codec_probe()
947 		dev_err(adcx140->dev, "setting sleep config failed %d\n", ret);  in adcx140_codec_probe()
954 	pdm_count = device_property_count_u32(adcx140->dev,  in adcx140_codec_probe()
955 					      "ti,pdm-edge-select");  in adcx140_codec_probe()
957 		ret = device_property_read_u32_array(adcx140->dev,  in adcx140_codec_probe()
958 						     "ti,pdm-edge-select",  in adcx140_codec_probe()
964 			pdm_edge_val |= pdm_edges[i] << (ADCX140_PDM_EDGE_SHIFT - i);  in adcx140_codec_probe()
966 		ret = regmap_write(adcx140->regmap, ADCX140_PDM_CFG,  in adcx140_codec_probe()
972 	gpi_count = device_property_count_u32(adcx140->dev, "ti,gpi-config");  in adcx140_codec_probe()
974 		ret = device_property_read_u32_array(adcx140->dev,  in adcx140_codec_probe()
975 						     "ti,gpi-config",  in adcx140_codec_probe()
983 		ret = regmap_write(adcx140->regmap, ADCX140_GPI_CFG0,  in adcx140_codec_probe()
991 		ret = regmap_write(adcx140->regmap, ADCX140_GPI_CFG1,  in adcx140_codec_probe()
1005 	ret = regmap_update_bits(adcx140->regmap, ADCX140_BIAS_CFG,  in adcx140_codec_probe()
1009 		dev_err(adcx140->dev, "setting MIC bias failed %d\n", ret);  in adcx140_codec_probe()
1011 	tx_high_z = device_property_read_bool(adcx140->dev, "ti,asi-tx-drive");  in adcx140_codec_probe()
1013 		ret = regmap_update_bits(adcx140->regmap, ADCX140_ASI_CFG0,  in adcx140_codec_probe()
1016 			dev_err(adcx140->dev, "Setting Tx drive failed %d\n", ret);  in adcx140_codec_probe()
1026 static int adcx140_set_bias_level(struct snd_soc_component *component,  in adcx140_set_bias_level()
1063 		.name = "tlv320adcx140-codec",
1084 static int adcx140_i2c_probe(struct i2c_client *i2c,  in adcx140_i2c_probe()
1088 	int ret;  in adcx140_i2c_probe()
1090 	adcx140 = devm_kzalloc(&i2c->dev, sizeof(*adcx140), GFP_KERNEL);  in adcx140_i2c_probe()
1092 		return -ENOMEM;  in adcx140_i2c_probe()
1094 	adcx140->dev = &i2c->dev;  in adcx140_i2c_probe()
1096 	adcx140->gpio_reset = devm_gpiod_get_optional(adcx140->dev,  in adcx140_i2c_probe()
1098 	if (IS_ERR(adcx140->gpio_reset))  in adcx140_i2c_probe()
1099 		dev_info(&i2c->dev, "Reset GPIO not defined\n");  in adcx140_i2c_probe()
1101 	adcx140->supply_areg = devm_regulator_get_optional(adcx140->dev,  in adcx140_i2c_probe()
1103 	if (IS_ERR(adcx140->supply_areg)) {  in adcx140_i2c_probe()
1104 		if (PTR_ERR(adcx140->supply_areg) == -EPROBE_DEFER)  in adcx140_i2c_probe()
1105 			return -EPROBE_DEFER;  in adcx140_i2c_probe()
1107 		adcx140->supply_areg = NULL;  in adcx140_i2c_probe()
1109 		ret = regulator_enable(adcx140->supply_areg);  in adcx140_i2c_probe()
1111 			dev_err(adcx140->dev, "Failed to enable areg\n");  in adcx140_i2c_probe()
1116 	adcx140->regmap = devm_regmap_init_i2c(i2c, &adcx140_i2c_regmap);  in adcx140_i2c_probe()
1117 	if (IS_ERR(adcx140->regmap)) {  in adcx140_i2c_probe()
1118 		ret = PTR_ERR(adcx140->regmap);  in adcx140_i2c_probe()
1119 		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",  in adcx140_i2c_probe()
1126 	return devm_snd_soc_register_component(&i2c->dev,  in adcx140_i2c_probe()
1141 		.name	= "tlv320adcx140-codec",