1 // SPDX-License-Identifier: GPL-2.0-only
3  * tas5720.c - ALSA SoC Texas Instruments TAS5720 Mono Audio Amplifier
5  * Copyright (C)2015-2016 Texas Instruments Incorporated -  https://www.ti.com
22 #include <sound/soc-dapm.h>
37 	"dvdd",		/* Digital power supply. Connect to 3.3-V supply. */
38 	"pvdd",		/* Class-D amp and analog power supply (connected). */
54 			     struct snd_soc_dai *dai)  in tas5720_hw_params()  argument
56 	struct snd_soc_component *component = dai->component;  in tas5720_hw_params()
71 		dev_err(component->dev, "unsupported sample rate: %u\n", rate);  in tas5720_hw_params()
72 		return -EINVAL;  in tas5720_hw_params()
78 		dev_err(component->dev, "error setting sample rate: %d\n", ret);  in tas5720_hw_params()
85 static int tas5720_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)  in tas5720_set_dai_fmt()  argument
87 	struct snd_soc_component *component = dai->component;  in tas5720_set_dai_fmt()
92 		dev_vdbg(component->dev, "DAI clocking invalid\n");  in tas5720_set_dai_fmt()
93 		return -EINVAL;  in tas5720_set_dai_fmt()
105 		 * mode it doesn't care about the LRCLK duty cycle during TDM  in tas5720_set_dai_fmt()
115 		 * not care about the LRCLK duty cycle during TDM to receive  in tas5720_set_dai_fmt()
126 		dev_vdbg(component->dev, "DAI Format is not found\n");  in tas5720_set_dai_fmt()
127 		return -EINVAL;  in tas5720_set_dai_fmt()
134 		dev_err(component->dev, "error setting SAIF format: %d\n", ret);  in tas5720_set_dai_fmt()
141 static int tas5720_set_dai_tdm_slot(struct snd_soc_dai *dai,  in tas5720_set_dai_tdm_slot()  argument
145 	struct snd_soc_component *component = dai->component;  in tas5720_set_dai_tdm_slot()
151 		dev_err(component->dev, "tx masks must not be 0\n");  in tas5720_set_dai_tdm_slot()
152 		return -EINVAL;  in tas5720_set_dai_tdm_slot()
156 	 * Determine the first slot that is being requested. We will only  in tas5720_set_dai_tdm_slot()
157 	 * use the first slot that is found since the TAS5720 is a mono  in tas5720_set_dai_tdm_slot()
163 		dev_err(component->dev, "slot selection out of bounds (%u)\n",  in tas5720_set_dai_tdm_slot()
165 		return -EINVAL;  in tas5720_set_dai_tdm_slot()
169 	 * Enable manual TDM slot selection (instead of I2C ID based).  in tas5720_set_dai_tdm_slot()
170 	 * This is not applicable to TAS5720A-Q1.  in tas5720_set_dai_tdm_slot()
172 	switch (tas5720->devtype) {  in tas5720_set_dai_tdm_slot()
181 		/* Configure the TDM slot to process audio from */  in tas5720_set_dai_tdm_slot()
189 	/* Configure TDM slot width. This is only applicable to TAS5722. */  in tas5720_set_dai_tdm_slot()
190 	switch (tas5720->devtype) {  in tas5720_set_dai_tdm_slot()
206 	dev_err(component->dev, "error configuring TDM mode: %d\n", ret);  in tas5720_set_dai_tdm_slot()
216 	switch (tas5720->devtype) {  in tas5720_mute_soc_component()
229 		dev_err(component->dev, "error (un-)muting device: %d\n", ret);  in tas5720_mute_soc_component()
236 static int tas5720_mute(struct snd_soc_dai *dai, int mute, int direction)  in tas5720_mute()  argument
238 	return tas5720_mute_soc_component(dai->component, mute);  in tas5720_mute()
245 	struct device *dev = tas5720->component->dev;  in tas5720_fault_check_work()
249 	ret = regmap_read(tas5720->regmap, TAS5720_FAULT_REG, &curr_fault);  in tas5720_fault_check_work()
264 	if ((curr_fault & TAS5720_OCE) && !(tas5720->last_fault & TAS5720_OCE))  in tas5720_fault_check_work()
267 	if ((curr_fault & TAS5720_DCE) && !(tas5720->last_fault & TAS5720_DCE))  in tas5720_fault_check_work()
270 	if ((curr_fault & TAS5720_OTE) && !(tas5720->last_fault & TAS5720_OTE))  in tas5720_fault_check_work()
274 	tas5720->last_fault = curr_fault;  in tas5720_fault_check_work()
280 	 * Periodically toggle SDZ (shutdown bit) H->L->H to clear any latching  in tas5720_fault_check_work()
285 	ret = regmap_write_bits(tas5720->regmap, TAS5720_POWER_CTRL_REG,  in tas5720_fault_check_work()
290 	ret = regmap_write_bits(tas5720->regmap, TAS5720_POWER_CTRL_REG,  in tas5720_fault_check_work()
297 	schedule_delayed_work(&tas5720->fault_check_work,  in tas5720_fault_check_work()
307 	tas5720->component = component;  in tas5720_codec_probe()
309 	ret = regulator_bulk_enable(ARRAY_SIZE(tas5720->supplies),  in tas5720_codec_probe()
310 				    tas5720->supplies);  in tas5720_codec_probe()
312 		dev_err(component->dev, "failed to enable supplies: %d\n", ret);  in tas5720_codec_probe()
321 	ret = regmap_read(tas5720->regmap, TAS5720_DEVICE_ID_REG, &device_id);  in tas5720_codec_probe()
323 		dev_err(component->dev, "failed to read device ID register: %d\n",  in tas5720_codec_probe()
328 	switch (tas5720->devtype) {  in tas5720_codec_probe()
339 		dev_err(component->dev, "unexpected private driver data\n");  in tas5720_codec_probe()
340 		ret = -EINVAL;  in tas5720_codec_probe()
345 		dev_warn(component->dev, "wrong device ID. expected: %u read: %u\n",  in tas5720_codec_probe()
354 	switch (tas5720->devtype) {  in tas5720_codec_probe()
367 	 * Enter shutdown mode - our default when not playing audio - to  in tas5720_codec_probe()
377 	INIT_DELAYED_WORK(&tas5720->fault_check_work, tas5720_fault_check_work);  in tas5720_codec_probe()
382 	dev_err(component->dev, "error configuring device registers: %d\n", ret);  in tas5720_codec_probe()
385 	regulator_bulk_disable(ARRAY_SIZE(tas5720->supplies),  in tas5720_codec_probe()
386 			       tas5720->supplies);  in tas5720_codec_probe()
395 	cancel_delayed_work_sync(&tas5720->fault_check_work);  in tas5720_codec_remove()
397 	ret = regulator_bulk_disable(ARRAY_SIZE(tas5720->supplies),  in tas5720_codec_remove()
398 				     tas5720->supplies);  in tas5720_codec_remove()
400 		dev_err(component->dev, "failed to disable supplies: %d\n", ret);  in tas5720_codec_remove()
406 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);  in tas5720_dac_event()
415 			dev_err(component->dev, "error waking component: %d\n", ret);  in tas5720_dac_event()
420 		 * Observe codec shutdown-to-active time. The datasheet only  in tas5720_dac_event()
421 		 * lists a nominal value however just use-it as-is without  in tas5720_dac_event()
430 		tas5720->last_fault = 0;  in tas5720_dac_event()
431 		schedule_delayed_work(&tas5720->fault_check_work,  in tas5720_dac_event()
435 		cancel_delayed_work_sync(&tas5720->fault_check_work);  in tas5720_dac_event()
441 			dev_err(component->dev, "error shutting down component: %d\n",  in tas5720_dac_event()
456 	regcache_cache_only(tas5720->regmap, true);  in tas5720_suspend()
457 	regcache_mark_dirty(tas5720->regmap);  in tas5720_suspend()
459 	ret = regulator_bulk_disable(ARRAY_SIZE(tas5720->supplies),  in tas5720_suspend()
460 				     tas5720->supplies);  in tas5720_suspend()
462 		dev_err(component->dev, "failed to disable supplies: %d\n", ret);  in tas5720_suspend()
472 	ret = regulator_bulk_enable(ARRAY_SIZE(tas5720->supplies),  in tas5720_resume()
473 				    tas5720->supplies);  in tas5720_resume()
475 		dev_err(component->dev, "failed to enable supplies: %d\n", ret);  in tas5720_resume()
479 	regcache_cache_only(tas5720->regmap, false);  in tas5720_resume()
481 	ret = regcache_sync(tas5720->regmap);  in tas5720_resume()
483 		dev_err(component->dev, "failed to sync regcache: %d\n", ret);  in tas5720_resume()
544  * DAC analog gain for TAS5720A-Q1. There are three discrete values to select from, ranging
554  * DAC digital volumes. From -103.5 to 24 dB in 0.5 dB or 0.25 dB steps
555  * depending on the device. Note that setting the gain below -100 dB
561 static DECLARE_TLV_DB_SCALE(tas5720_dac_tlv, -10350, 50, 0);
562 static DECLARE_TLV_DB_SCALE(tas5722_dac_tlv, -10350, 25, 0);
571 	ucontrol->value.integer.value[0] = val << 1;  in tas5722_volume_get()
574 	ucontrol->value.integer.value[0] |= val & TAS5722_VOL_CONTROL_LSB;  in tas5722_volume_get()
583 	unsigned int sel = ucontrol->value.integer.value[0];  in tas5722_volume_set()
694  * TAS5720 DAI structure
706 		.name = "tas5720-amplifier",
720 	{ "tas5720a-q1", TAS5720A_Q1 },
728 	struct device *dev = &client->dev;  in tas5720_probe()
736 		return -ENOMEM;  in tas5720_probe()
738 	data->devtype = (uintptr_t)i2c_get_match_data(client);  in tas5720_probe()
740 	switch (data->devtype) {  in tas5720_probe()
752 		return -EINVAL;  in tas5720_probe()
754 	data->regmap = devm_regmap_init_i2c(client, regmap_config);  in tas5720_probe()
755 	if (IS_ERR(data->regmap)) {  in tas5720_probe()
756 		ret = PTR_ERR(data->regmap);  in tas5720_probe()
757 		dev_err(dev, "failed to allocate register map: %d\n", ret);  in tas5720_probe()
761 	for (i = 0; i < ARRAY_SIZE(data->supplies); i++)  in tas5720_probe()
762 		data->supplies[i].supply = tas5720_supply_names[i];  in tas5720_probe()
764 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(data->supplies),  in tas5720_probe()
765 				      data->supplies);  in tas5720_probe()
773 	switch (data->devtype) {  in tas5720_probe()
775 		ret = devm_snd_soc_register_component(&client->dev,  in tas5720_probe()
781 		ret = devm_snd_soc_register_component(&client->dev,  in tas5720_probe()
787 		ret = devm_snd_soc_register_component(&client->dev,  in tas5720_probe()
794 		return -EINVAL;  in tas5720_probe()
807 	{ .compatible = "ti,tas5720a-q1", },