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
23 #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). */
57 	struct snd_soc_component *component = dai->component;  in tas5720_hw_params()
72 		dev_err(component->dev, "unsupported sample rate: %u\n", rate);  in tas5720_hw_params()
73 		return -EINVAL;  in tas5720_hw_params()
79 		dev_err(component->dev, "error setting sample rate: %d\n", ret);  in tas5720_hw_params()
88 	struct snd_soc_component *component = dai->component;  in tas5720_set_dai_fmt()
93 		dev_vdbg(component->dev, "DAI clocking invalid\n");  in tas5720_set_dai_fmt()
94 		return -EINVAL;  in tas5720_set_dai_fmt()
127 		dev_vdbg(component->dev, "DAI Format is not found\n");  in tas5720_set_dai_fmt()
128 		return -EINVAL;  in tas5720_set_dai_fmt()
135 		dev_err(component->dev, "error setting SAIF format: %d\n", ret);  in tas5720_set_dai_fmt()
146 	struct snd_soc_component *component = dai->component;  in tas5720_set_dai_tdm_slot()
152 		dev_err(component->dev, "tx masks must not be 0\n");  in tas5720_set_dai_tdm_slot()
153 		return -EINVAL;  in tas5720_set_dai_tdm_slot()
164 		dev_err(component->dev, "slot selection out of bounds (%u)\n",  in tas5720_set_dai_tdm_slot()
166 		return -EINVAL;  in tas5720_set_dai_tdm_slot()
182 	switch (tas5720->devtype) {  in tas5720_set_dai_tdm_slot()
198 	dev_err(component->dev, "error configuring TDM mode: %d\n", ret);  in tas5720_set_dai_tdm_slot()
204 	struct snd_soc_component *component = dai->component;  in tas5720_mute()
210 		dev_err(component->dev, "error (un-)muting device: %d\n", ret);  in tas5720_mute()
221 	struct device *dev = tas5720->component->dev;  in tas5720_fault_check_work()
225 	ret = regmap_read(tas5720->regmap, TAS5720_FAULT_REG, &curr_fault);  in tas5720_fault_check_work()
240 	if ((curr_fault & TAS5720_OCE) && !(tas5720->last_fault & TAS5720_OCE))  in tas5720_fault_check_work()
243 	if ((curr_fault & TAS5720_DCE) && !(tas5720->last_fault & TAS5720_DCE))  in tas5720_fault_check_work()
246 	if ((curr_fault & TAS5720_OTE) && !(tas5720->last_fault & TAS5720_OTE))  in tas5720_fault_check_work()
250 	tas5720->last_fault = curr_fault;  in tas5720_fault_check_work()
256 	 * Periodically toggle SDZ (shutdown bit) H->L->H to clear any latching  in tas5720_fault_check_work()
261 	ret = regmap_write_bits(tas5720->regmap, TAS5720_POWER_CTRL_REG,  in tas5720_fault_check_work()
266 	ret = regmap_write_bits(tas5720->regmap, TAS5720_POWER_CTRL_REG,  in tas5720_fault_check_work()
273 	schedule_delayed_work(&tas5720->fault_check_work,  in tas5720_fault_check_work()
283 	tas5720->component = component;  in tas5720_codec_probe()
285 	ret = regulator_bulk_enable(ARRAY_SIZE(tas5720->supplies),  in tas5720_codec_probe()
286 				    tas5720->supplies);  in tas5720_codec_probe()
288 		dev_err(component->dev, "failed to enable supplies: %d\n", ret);  in tas5720_codec_probe()
297 	ret = regmap_read(tas5720->regmap, TAS5720_DEVICE_ID_REG, &device_id);  in tas5720_codec_probe()
299 		dev_err(component->dev, "failed to read device ID register: %d\n",  in tas5720_codec_probe()
304 	switch (tas5720->devtype) {  in tas5720_codec_probe()
312 		dev_err(component->dev, "unexpected private driver data\n");  in tas5720_codec_probe()
313 		return -EINVAL;  in tas5720_codec_probe()
317 		dev_warn(component->dev, "wrong device ID. expected: %u read: %u\n",  in tas5720_codec_probe()
327 	 * Enter shutdown mode - our default when not playing audio - to  in tas5720_codec_probe()
328 	 * minimize current consumption. On the TAS5720 there is no real down  in tas5720_codec_probe()
337 	INIT_DELAYED_WORK(&tas5720->fault_check_work, tas5720_fault_check_work);  in tas5720_codec_probe()
342 	dev_err(component->dev, "error configuring device registers: %d\n", ret);  in tas5720_codec_probe()
345 	regulator_bulk_disable(ARRAY_SIZE(tas5720->supplies),  in tas5720_codec_probe()
346 			       tas5720->supplies);  in tas5720_codec_probe()
355 	cancel_delayed_work_sync(&tas5720->fault_check_work);  in tas5720_codec_remove()
357 	ret = regulator_bulk_disable(ARRAY_SIZE(tas5720->supplies),  in tas5720_codec_remove()
358 				     tas5720->supplies);  in tas5720_codec_remove()
360 		dev_err(component->dev, "failed to disable supplies: %d\n", ret);  in tas5720_codec_remove()
366 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);  in tas5720_dac_event()
375 			dev_err(component->dev, "error waking component: %d\n", ret);  in tas5720_dac_event()
380 		 * Observe codec shutdown-to-active time. The datasheet only  in tas5720_dac_event()
381 		 * lists a nominal value however just use-it as-is without  in tas5720_dac_event()
389 		/* Turn on TAS5720 periodic fault checking/handling */  in tas5720_dac_event()
390 		tas5720->last_fault = 0;  in tas5720_dac_event()
391 		schedule_delayed_work(&tas5720->fault_check_work,  in tas5720_dac_event()
395 		cancel_delayed_work_sync(&tas5720->fault_check_work);  in tas5720_dac_event()
401 			dev_err(component->dev, "error shutting down component: %d\n",  in tas5720_dac_event()
416 	regcache_cache_only(tas5720->regmap, true);  in tas5720_suspend()
417 	regcache_mark_dirty(tas5720->regmap);  in tas5720_suspend()
419 	ret = regulator_bulk_disable(ARRAY_SIZE(tas5720->supplies),  in tas5720_suspend()
420 				     tas5720->supplies);  in tas5720_suspend()
422 		dev_err(component->dev, "failed to disable supplies: %d\n", ret);  in tas5720_suspend()
432 	ret = regulator_bulk_enable(ARRAY_SIZE(tas5720->supplies),  in tas5720_resume()
433 				    tas5720->supplies);  in tas5720_resume()
435 		dev_err(component->dev, "failed to enable supplies: %d\n", ret);  in tas5720_resume()
439 	regcache_cache_only(tas5720->regmap, false);  in tas5720_resume()
441 	ret = regcache_sync(tas5720->regmap);  in tas5720_resume()
443 		dev_err(component->dev, "failed to sync regcache: %d\n", ret);  in tas5720_resume()
495  * DAC digital volumes. From -103.5 to 24 dB in 0.5 dB or 0.25 dB steps
496  * depending on the device. Note that setting the gain below -100 dB
502 static DECLARE_TLV_DB_SCALE(tas5720_dac_tlv, -10350, 50, 0);
503 static DECLARE_TLV_DB_SCALE(tas5722_dac_tlv, -10350, 25, 0);
512 	ucontrol->value.integer.value[0] = val << 1;  in tas5722_volume_get()
515 	ucontrol->value.integer.value[0] |= val & TAS5722_VOL_CONTROL_LSB;  in tas5722_volume_get()
524 	unsigned int sel = ucontrol->value.integer.value[0];  in tas5722_volume_set()  local
526 	snd_soc_component_write(component, TAS5720_VOLUME_CTRL_REG, sel >> 1);  in tas5722_volume_set()
528 				      TAS5722_VOL_CONTROL_LSB, sel);  in tas5722_volume_set()
617  * simply ignore any extra channel(s) asides from the one channel that is
622 		.name = "tas5720-amplifier",
643 	struct device *dev = &client->dev;  in tas5720_probe()
652 		return -ENOMEM;  in tas5720_probe()
655 	data->tas5720_client = client;  in tas5720_probe()
656 	data->devtype = id->driver_data;  in tas5720_probe()
658 	switch (id->driver_data) {  in tas5720_probe()
667 		return -EINVAL;  in tas5720_probe()
669 	data->regmap = devm_regmap_init_i2c(client, regmap_config);  in tas5720_probe()
670 	if (IS_ERR(data->regmap)) {  in tas5720_probe()
671 		ret = PTR_ERR(data->regmap);  in tas5720_probe()
676 	for (i = 0; i < ARRAY_SIZE(data->supplies); i++)  in tas5720_probe()
677 		data->supplies[i].supply = tas5720_supply_names[i];  in tas5720_probe()
679 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(data->supplies),  in tas5720_probe()
680 				      data->supplies);  in tas5720_probe()
688 	switch (id->driver_data) {  in tas5720_probe()
690 		ret = devm_snd_soc_register_component(&client->dev,  in tas5720_probe()
696 		ret = devm_snd_soc_register_component(&client->dev,  in tas5720_probe()
703 		return -EINVAL;  in tas5720_probe()