1 // SPDX-License-Identifier: GPL-2.0
3 // ALSA SoC Texas Instruments TAS2770 20-W Digital Input Mono Class-D
6 // Copyright (C) 2016-2017 Texas Instruments Incorporated - https://www.ti.com/
7 //	Author: Tracy Yi <tracy-yi@ti.com>
36 	if (tas2770->reset_gpio) {  in tas2770_reset()
37 		gpiod_set_value_cansleep(tas2770->reset_gpio, 0);  in tas2770_reset()
39 		gpiod_set_value_cansleep(tas2770->reset_gpio, 1);  in tas2770_reset()
43 	snd_soc_component_write(tas2770->component, TAS2770_SW_RST,  in tas2770_reset()
50 	struct snd_soc_component *component = tas2770->component;  in tas2770_update_pwr_ctrl()
54 	if (tas2770->dac_powered)  in tas2770_update_pwr_ctrl()
55 		val = tas2770->unmuted ?  in tas2770_update_pwr_ctrl()
74 	regcache_cache_only(tas2770->regmap, true);  in tas2770_codec_suspend()
75 	regcache_mark_dirty(tas2770->regmap);  in tas2770_codec_suspend()
77 	if (tas2770->sdz_gpio) {  in tas2770_codec_suspend()
78 		gpiod_set_value_cansleep(tas2770->sdz_gpio, 0);  in tas2770_codec_suspend()
84 			regcache_cache_only(tas2770->regmap, false);  in tas2770_codec_suspend()
85 			regcache_sync(tas2770->regmap);  in tas2770_codec_suspend()
100 	if (tas2770->sdz_gpio) {  in tas2770_codec_resume()
101 		gpiod_set_value_cansleep(tas2770->sdz_gpio, 1);  in tas2770_codec_resume()
109 	regcache_cache_only(tas2770->regmap, false);  in tas2770_codec_resume()
111 	return regcache_sync(tas2770->regmap);  in tas2770_codec_resume()
133 			snd_soc_dapm_to_component(w->dapm);  in tas2770_dac_event()
140 		tas2770->dac_powered = 1;  in tas2770_dac_event()
144 		tas2770->dac_powered = 0;  in tas2770_dac_event()
148 		dev_err(tas2770->dev, "Not supported evevt\n");  in tas2770_dac_event()
149 		return -EINVAL;  in tas2770_dac_event()
163 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);  in sense_event()
169 	 * we might end up with non-functional IVSENSE if playback started earlier,  in sense_event()
195 	SND_SOC_DAPM_SIGGEN("IMON")
205 	{"ISENSE", "Switch", "IMON"},
211 	struct snd_soc_component *component = dai->component;  in tas2770_mute()
215 	tas2770->unmuted = !mute;  in tas2770_mute()
222 	struct snd_soc_component *component = tas2770->component;  in tas2770_set_ivsense_transmit()
244 static int tas2770_set_pdm_transmit(struct tas2770_priv *tas2770, int slot)  in tas2770_set_pdm_transmit()  argument
246 	struct snd_soc_component *component = tas2770->component;  in tas2770_set_pdm_transmit()
253 					    slot);  in tas2770_set_pdm_transmit()
260 	struct snd_soc_component *component = tas2770->component;  in tas2770_set_bitwidth()
280 		return -EINVAL;  in tas2770_set_bitwidth()
291 	struct snd_soc_component *component = tas2770->component;  in tas2770_set_samplerate()
321 		return -EINVAL;  in tas2770_set_samplerate()
338 	struct snd_soc_component *component = dai->component;  in tas2770_hw_params()
352 	struct snd_soc_component *component = dai->component;  in tas2770_set_fmt()
362 		dev_err(tas2770->dev, "ASI invalid DAI clocking\n");  in tas2770_set_fmt()
363 		return -EINVAL;  in tas2770_set_fmt()
380 		dev_err(tas2770->dev, "ASI format Inverse is not found\n");  in tas2770_set_fmt()
381 		return -EINVAL;  in tas2770_set_fmt()
408 		dev_err(tas2770->dev,  in tas2770_set_fmt()
410 		return -EINVAL;  in tas2770_set_fmt()
435 	struct snd_soc_component *component = dai->component;  in tas2770_set_dai_tdm_slot()
440 		return -EINVAL;  in tas2770_set_dai_tdm_slot()
452 		return -EINVAL;  in tas2770_set_dai_tdm_slot()
482 		/* Do not change slot width */  in tas2770_set_dai_tdm_slot()
486 		ret = -EINVAL;  in tas2770_set_dai_tdm_slot()
539 	ret = regmap_read(tas2770->regmap, TAS2770_TEMP_MSB, &msb);  in tas2770_read_die_temp()
543 	ret = regmap_read(tas2770->regmap, TAS2770_TEMP_LSB, &lsb);  in tas2770_read_die_temp()
555 	 * that the temperature will read -93 *C until the chip is brought out  in tas2770_read_die_temp()
557 	 * ADC is also shut down in software shutdown/low-power mode, so the  in tas2770_read_die_temp()
561 	*result = (reading - (93 * 16)) * (1000 / 16);  in tas2770_read_die_temp()
594 		ret = -EOPNOTSUPP;  in tas2770_hwmon_read()
624 	tas2770->component = component;  in tas2770_codec_probe()
626 	if (tas2770->sdz_gpio) {  in tas2770_codec_probe()
627 		gpiod_set_value_cansleep(tas2770->sdz_gpio, 1);  in tas2770_codec_probe()
632 	regmap_reinit_cache(tas2770->regmap, &tas2770_i2c_regmap);  in tas2770_codec_probe()
634 	if (tas2770->i_sense_slot != -1 && tas2770->v_sense_slot != -1) {  in tas2770_codec_probe()
635 		ret = tas2770_set_ivsense_transmit(tas2770, tas2770->i_sense_slot,  in tas2770_codec_probe()
636 						   tas2770->v_sense_slot);  in tas2770_codec_probe()
642 	if (tas2770->pdm_slot != -1) {  in tas2770_codec_probe()
643 		ret = tas2770_set_pdm_transmit(tas2770, tas2770->pdm_slot);  in tas2770_codec_probe()
653 static DECLARE_TLV_DB_SCALE(tas2770_playback_volume, -10050, 50, 0);
678 	return devm_snd_soc_register_component(tas2770->dev,  in tas2770_register_codec()
770 	rc = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",  in tas2770_parse_dt()
771 				      &tas2770->i_sense_slot);  in tas2770_parse_dt()
773 		dev_info(tas2770->dev, "Property %s is missing setting default slot\n",  in tas2770_parse_dt()
774 			 "ti,imon-slot-no");  in tas2770_parse_dt()
776 		tas2770->i_sense_slot = -1;  in tas2770_parse_dt()
779 	rc = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",  in tas2770_parse_dt()
780 				      &tas2770->v_sense_slot);  in tas2770_parse_dt()
782 		dev_info(tas2770->dev, "Property %s is missing setting default slot\n",  in tas2770_parse_dt()
783 			 "ti,vmon-slot-no");  in tas2770_parse_dt()
785 		tas2770->v_sense_slot = -1;  in tas2770_parse_dt()
788 	rc = fwnode_property_read_u32(dev->fwnode, "ti,pdm-slot-no",  in tas2770_parse_dt()
789 				      &tas2770->pdm_slot);  in tas2770_parse_dt()
791 		tas2770->pdm_slot = -1;  in tas2770_parse_dt()
793 	tas2770->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);  in tas2770_parse_dt()
794 	if (IS_ERR(tas2770->sdz_gpio)) {  in tas2770_parse_dt()
795 		if (PTR_ERR(tas2770->sdz_gpio) == -EPROBE_DEFER)  in tas2770_parse_dt()
796 			return -EPROBE_DEFER;  in tas2770_parse_dt()
798 		tas2770->sdz_gpio = NULL;  in tas2770_parse_dt()
809 	tas2770 = devm_kzalloc(&client->dev, sizeof(struct tas2770_priv),  in tas2770_i2c_probe()
812 		return -ENOMEM;  in tas2770_i2c_probe()
814 	tas2770->dev = &client->dev;  in tas2770_i2c_probe()
816 	dev_set_drvdata(&client->dev, tas2770);  in tas2770_i2c_probe()
818 	tas2770->regmap = devm_regmap_init_i2c(client, &tas2770_i2c_regmap);  in tas2770_i2c_probe()
819 	if (IS_ERR(tas2770->regmap)) {  in tas2770_i2c_probe()
820 		result = PTR_ERR(tas2770->regmap);  in tas2770_i2c_probe()
821 		dev_err(&client->dev, "Failed to allocate register map: %d\n",  in tas2770_i2c_probe()
826 	if (client->dev.of_node) {  in tas2770_i2c_probe()
827 		result = tas2770_parse_dt(&client->dev, tas2770);  in tas2770_i2c_probe()
829 			dev_err(tas2770->dev, "%s: Failed to parse devicetree\n",  in tas2770_i2c_probe()
835 	tas2770->reset_gpio = devm_gpiod_get_optional(tas2770->dev, "reset",  in tas2770_i2c_probe()
837 	if (IS_ERR(tas2770->reset_gpio)) {  in tas2770_i2c_probe()
838 		if (PTR_ERR(tas2770->reset_gpio) == -EPROBE_DEFER) {  in tas2770_i2c_probe()
839 			tas2770->reset_gpio = NULL;  in tas2770_i2c_probe()
840 			return -EPROBE_DEFER;  in tas2770_i2c_probe()
847 		hwmon = devm_hwmon_device_register_with_info(&client->dev, "tas2770",  in tas2770_i2c_probe()
852 			return dev_err_probe(&client->dev, PTR_ERR(hwmon),  in tas2770_i2c_probe()
859 		dev_err(tas2770->dev, "Register codec failed.\n");  in tas2770_i2c_probe()