soc/codecs/tas2770.c

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>
37 	if (tas2770->reset_gpio) {
38 		gpiod_set_value_cansleep(tas2770->reset_gpio, 0);
40 		gpiod_set_value_cansleep(tas2770->reset_gpio, 1);
44 	snd_soc_component_write(tas2770->component, TAS2770_SW_RST,
51 	struct snd_soc_component *component = tas2770->component;
55 	if (tas2770->dac_powered)
56 		val = tas2770->unmuted ?
75 	regcache_cache_only(tas2770->regmap, true);
76 	regcache_mark_dirty(tas2770->regmap);
78 	if (tas2770->sdz_gpio) {
79 		gpiod_set_value_cansleep(tas2770->sdz_gpio, 0);
85 			regcache_cache_only(tas2770->regmap, false);
86 			regcache_sync(tas2770->regmap);
101 	if (tas2770->sdz_gpio) {
102 		gpiod_set_value_cansleep(tas2770->sdz_gpio, 1);
110 	regcache_cache_only(tas2770->regmap, false);
112 	return regcache_sync(tas2770->regmap);
134 			snd_soc_dapm_to_component(w->dapm);
141 		tas2770->dac_powered = 1;
145 		tas2770->dac_powered = 0;
149 		dev_err(tas2770->dev, "Not supported evevt\n");
150 		return -EINVAL;
186 	struct snd_soc_component *component = dai->component;
190 	tas2770->unmuted = !mute;
197 	struct snd_soc_component *component = tas2770->component;
204 		tas2770->v_sense_slot = tas2770->i_sense_slot + 2;
210 		tas2770->v_sense_slot = tas2770->i_sense_slot + 4;
216 		tas2770->v_sense_slot = tas2770->i_sense_slot + 4;
220 		return -EINVAL;
230 		tas2770->v_sense_slot);
238 					    tas2770->i_sense_slot);
247 	struct snd_soc_component *component = tas2770->component;
277 		return -EINVAL;
294 	struct snd_soc_component *component = dai->component;
308 	struct snd_soc_component *component = dai->component;
318 		dev_err(tas2770->dev, "ASI invalid DAI clocking\n");
319 		return -EINVAL;
336 		dev_err(tas2770->dev, "ASI format Inverse is not found\n");
337 		return -EINVAL;
364 		dev_err(tas2770->dev,
365 			"DAI Format is not found, fmt=0x%x\n", fmt);
366 		return -EINVAL;
391 	struct snd_soc_component *component = dai->component;
396 		return -EINVAL;
408 		return -EINVAL;
442 		ret = -EINVAL;
497 	tas2770->component = component;
499 	if (tas2770->sdz_gpio) {
500 		gpiod_set_value_cansleep(tas2770->sdz_gpio, 1);
505 	regmap_reinit_cache(tas2770->regmap, &tas2770_i2c_regmap);
511 static DECLARE_TLV_DB_SCALE(tas2770_playback_volume, -10050, 50, 0);
536 	return devm_snd_soc_register_component(tas2770->dev,
628 	rc = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
629 				      &tas2770->i_sense_slot);
631 		dev_info(tas2770->dev, "Property %s is missing setting default slot\n",
632 			 "ti,imon-slot-no");
634 		tas2770->i_sense_slot = 0;
637 	rc = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
638 				      &tas2770->v_sense_slot);
640 		dev_info(tas2770->dev, "Property %s is missing setting default slot\n",
641 			 "ti,vmon-slot-no");
643 		tas2770->v_sense_slot = 2;
646 	tas2770->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);
647 	if (IS_ERR(tas2770->sdz_gpio)) {
648 		if (PTR_ERR(tas2770->sdz_gpio) == -EPROBE_DEFER)
649 			return -EPROBE_DEFER;
651 		tas2770->sdz_gpio = NULL;
662 	tas2770 = devm_kzalloc(&client->dev, sizeof(struct tas2770_priv),
665 		return -ENOMEM;
667 	tas2770->dev = &client->dev;
669 	dev_set_drvdata(&client->dev, tas2770);
671 	tas2770->regmap = devm_regmap_init_i2c(client, &tas2770_i2c_regmap);
672 	if (IS_ERR(tas2770->regmap)) {
673 		result = PTR_ERR(tas2770->regmap);
674 		dev_err(&client->dev, "Failed to allocate register map: %d\n",
679 	if (client->dev.of_node) {
680 		result = tas2770_parse_dt(&client->dev, tas2770);
682 			dev_err(tas2770->dev, "%s: Failed to parse devicetree\n",
688 	tas2770->reset_gpio = devm_gpiod_get_optional(tas2770->dev, "reset",
690 	if (IS_ERR(tas2770->reset_gpio)) {
691 		if (PTR_ERR(tas2770->reset_gpio) == -EPROBE_DEFER) {
692 			tas2770->reset_gpio = NULL;
693 			return -EPROBE_DEFER;
699 		dev_err(tas2770->dev, "Register codec failed.\n");