3 // Driver for the Texas Instruments TAS2764 CODEC
26 #include "tas2764.h"
39 static void tas2764_reset(struct tas2764_priv *tas2764)  in tas2764_reset()  argument
41 	if (tas2764->reset_gpio) {  in tas2764_reset()
42 		gpiod_set_value_cansleep(tas2764->reset_gpio, 0);  in tas2764_reset()
44 		gpiod_set_value_cansleep(tas2764->reset_gpio, 1);  in tas2764_reset()
47 	snd_soc_component_write(tas2764->component, TAS2764_SW_RST,  in tas2764_reset()
54 	struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);  in tas2764_set_bias_level()  local
75 		dev_err(tas2764->dev,  in tas2764_set_bias_level()
86 	struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);  in tas2764_codec_suspend()  local
96 	if (tas2764->sdz_gpio)  in tas2764_codec_suspend()
97 		gpiod_set_value_cansleep(tas2764->sdz_gpio, 0);  in tas2764_codec_suspend()
99 	regcache_cache_only(tas2764->regmap, true);  in tas2764_codec_suspend()
100 	regcache_mark_dirty(tas2764->regmap);  in tas2764_codec_suspend()
107 	struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);  in tas2764_codec_resume()  local
110 	if (tas2764->sdz_gpio)  in tas2764_codec_resume()
111 		gpiod_set_value_cansleep(tas2764->sdz_gpio, 1);  in tas2764_codec_resume()
120 	regcache_cache_only(tas2764->regmap, false);  in tas2764_codec_resume()
122 	return regcache_sync(tas2764->regmap);  in tas2764_codec_resume()
143 	struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);  in tas2764_dac_event()  local
158 		dev_err(tas2764->dev, "Unsupported event\n");  in tas2764_dac_event()
213 static int tas2764_set_bitwidth(struct tas2764_priv *tas2764, int bitwidth)  in tas2764_set_bitwidth()  argument
215 	struct snd_soc_component *component = tas2764->component;  in tas2764_set_bitwidth()
247 	val = snd_soc_component_read(tas2764->component, TAS2764_PWR_CTRL);  in tas2764_set_bitwidth()
256 	ret = snd_soc_component_update_bits(tas2764->component, TAS2764_TDM_CFG5,  in tas2764_set_bitwidth()
267 	ret = snd_soc_component_update_bits(tas2764->component, TAS2764_TDM_CFG6,  in tas2764_set_bitwidth()
276 static int tas2764_set_samplerate(struct tas2764_priv *tas2764, int samplerate)  in tas2764_set_samplerate()  argument
278 	struct snd_soc_component *component = tas2764->component;  in tas2764_set_samplerate()
318 	struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);  in tas2764_hw_params()  local
321 	ret = tas2764_set_bitwidth(tas2764, params_format(params));  in tas2764_hw_params()
325 	return tas2764_set_samplerate(tas2764, params_rate(params));  in tas2764_hw_params()
331 	struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);  in tas2764_set_fmt()  local
344 		dev_err(tas2764->dev, "ASI format Inverse is not found\n");  in tas2764_set_fmt()
366 		dev_err(tas2764->dev,  in tas2764_set_fmt()
391 	struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);  in tas2764_set_dai_tdm_slot()  local
447 					    tas2764->v_sense_slot);  in tas2764_set_dai_tdm_slot()
453 					    tas2764->i_sense_slot);  in tas2764_set_dai_tdm_slot()
476 		.name = "tas2764 ASI1",
499 	struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);  in tas2764_codec_probe()  local
502 	tas2764->component = component;  in tas2764_codec_probe()
504 	if (tas2764->sdz_gpio)  in tas2764_codec_probe()
505 		gpiod_set_value_cansleep(tas2764->sdz_gpio, 1);  in tas2764_codec_probe()
507 	tas2764_reset(tas2764);  in tas2764_codec_probe()
509 	ret = snd_soc_component_update_bits(tas2764->component, TAS2764_TDM_CFG5,  in tas2764_codec_probe()
514 	ret = snd_soc_component_update_bits(tas2764->component, TAS2764_TDM_CFG6,  in tas2764_codec_probe()
590 static int tas2764_parse_dt(struct device *dev, struct tas2764_priv *tas2764)  in tas2764_parse_dt()  argument
594 	tas2764->reset_gpio = devm_gpiod_get_optional(tas2764->dev, "reset",  in tas2764_parse_dt()
596 	if (IS_ERR(tas2764->reset_gpio)) {  in tas2764_parse_dt()
597 		if (PTR_ERR(tas2764->reset_gpio) == -EPROBE_DEFER) {  in tas2764_parse_dt()
598 			tas2764->reset_gpio = NULL;  in tas2764_parse_dt()
603 	tas2764->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);  in tas2764_parse_dt()
604 	if (IS_ERR(tas2764->sdz_gpio)) {  in tas2764_parse_dt()
605 		if (PTR_ERR(tas2764->sdz_gpio) == -EPROBE_DEFER)  in tas2764_parse_dt()
608 		tas2764->sdz_gpio = NULL;  in tas2764_parse_dt()
612 				       &tas2764->i_sense_slot);  in tas2764_parse_dt()
614 		tas2764->i_sense_slot = 0;  in tas2764_parse_dt()
617 				       &tas2764->v_sense_slot);  in tas2764_parse_dt()
619 		tas2764->v_sense_slot = 2;  in tas2764_parse_dt()
627 	struct tas2764_priv *tas2764;  in tas2764_i2c_probe()  local
630 	tas2764 = devm_kzalloc(&client->dev, sizeof(struct tas2764_priv),  in tas2764_i2c_probe()
632 	if (!tas2764)  in tas2764_i2c_probe()
635 	tas2764->dev = &client->dev;  in tas2764_i2c_probe()
636 	i2c_set_clientdata(client, tas2764);  in tas2764_i2c_probe()
637 	dev_set_drvdata(&client->dev, tas2764);  in tas2764_i2c_probe()
639 	tas2764->regmap = devm_regmap_init_i2c(client, &tas2764_i2c_regmap);  in tas2764_i2c_probe()
640 	if (IS_ERR(tas2764->regmap)) {  in tas2764_i2c_probe()
641 		result = PTR_ERR(tas2764->regmap);  in tas2764_i2c_probe()
648 		result = tas2764_parse_dt(&client->dev, tas2764);  in tas2764_i2c_probe()
650 			dev_err(tas2764->dev, "%s: Failed to parse devicetree\n",  in tas2764_i2c_probe()
656 	return devm_snd_soc_register_component(tas2764->dev,  in tas2764_i2c_probe()
663 	{ "tas2764", 0},
670 	{ .compatible = "ti,tas2764" },
678 		.name   = "tas2764",
687 MODULE_DESCRIPTION("TAS2764 I2C Smart Amplifier driver");