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). */
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()
171 	 * This is not applicable to TAS5720A-Q1.  in tas5720_set_dai_tdm_slot()
173 	switch (tas5720->devtype) {  in tas5720_set_dai_tdm_slot()
182 		/* Configure the TDM slot to process audio from */  in tas5720_set_dai_tdm_slot()
191 	switch (tas5720->devtype) {  in tas5720_set_dai_tdm_slot()
207 	dev_err(component->dev, "error configuring TDM mode: %d\n", ret);  in tas5720_set_dai_tdm_slot()
217 	switch (tas5720->devtype) {  in tas5720_mute_soc_component()
230 		dev_err(component->dev, "error (un-)muting device: %d\n", ret);  in tas5720_mute_soc_component()
239 	return tas5720_mute_soc_component(dai->component, mute);  in tas5720_mute()
246 	struct device *dev = tas5720->component->dev;  in tas5720_fault_check_work()
250 	ret = regmap_read(tas5720->regmap, TAS5720_FAULT_REG, &curr_fault);  in tas5720_fault_check_work()
265 	if ((curr_fault & TAS5720_OCE) && !(tas5720->last_fault & TAS5720_OCE))  in tas5720_fault_check_work()
268 	if ((curr_fault & TAS5720_DCE) && !(tas5720->last_fault & TAS5720_DCE))  in tas5720_fault_check_work()
271 	if ((curr_fault & TAS5720_OTE) && !(tas5720->last_fault & TAS5720_OTE))  in tas5720_fault_check_work()
275 	tas5720->last_fault = curr_fault;  in tas5720_fault_check_work()
281 	 * Periodically toggle SDZ (shutdown bit) H->L->H to clear any latching  in tas5720_fault_check_work()
286 	ret = regmap_write_bits(tas5720->regmap, TAS5720_POWER_CTRL_REG,  in tas5720_fault_check_work()
291 	ret = regmap_write_bits(tas5720->regmap, TAS5720_POWER_CTRL_REG,  in tas5720_fault_check_work()
298 	schedule_delayed_work(&tas5720->fault_check_work,  in tas5720_fault_check_work()
308 	tas5720->component = component;  in tas5720_codec_probe()
310 	ret = regulator_bulk_enable(ARRAY_SIZE(tas5720->supplies),  in tas5720_codec_probe()
311 				    tas5720->supplies);  in tas5720_codec_probe()
313 		dev_err(component->dev, "failed to enable supplies: %d\n", ret);  in tas5720_codec_probe()
322 	ret = regmap_read(tas5720->regmap, TAS5720_DEVICE_ID_REG, &device_id);  in tas5720_codec_probe()
324 		dev_err(component->dev, "failed to read device ID register: %d\n",  in tas5720_codec_probe()
329 	switch (tas5720->devtype) {  in tas5720_codec_probe()
340 		dev_err(component->dev, "unexpected private driver data\n");  in tas5720_codec_probe()
341 		ret = -EINVAL;  in tas5720_codec_probe()
346 		dev_warn(component->dev, "wrong device ID. expected: %u read: %u\n",  in tas5720_codec_probe()
355 	switch (tas5720->devtype) {  in tas5720_codec_probe()
368 	 * Enter shutdown mode - our default when not playing audio - to  in tas5720_codec_probe()
378 	INIT_DELAYED_WORK(&tas5720->fault_check_work, tas5720_fault_check_work);  in tas5720_codec_probe()
383 	dev_err(component->dev, "error configuring device registers: %d\n", ret);  in tas5720_codec_probe()
386 	regulator_bulk_disable(ARRAY_SIZE(tas5720->supplies),  in tas5720_codec_probe()
387 			       tas5720->supplies);  in tas5720_codec_probe()
396 	cancel_delayed_work_sync(&tas5720->fault_check_work);  in tas5720_codec_remove()
398 	ret = regulator_bulk_disable(ARRAY_SIZE(tas5720->supplies),  in tas5720_codec_remove()
399 				     tas5720->supplies);  in tas5720_codec_remove()
401 		dev_err(component->dev, "failed to disable supplies: %d\n", ret);  in tas5720_codec_remove()
407 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);  in tas5720_dac_event()
416 			dev_err(component->dev, "error waking component: %d\n", ret);  in tas5720_dac_event()
421 		 * Observe codec shutdown-to-active time. The datasheet only  in tas5720_dac_event()
422 		 * lists a nominal value however just use-it as-is without  in tas5720_dac_event()
424 		 * starting to play audio (actually there is other setup done  in tas5720_dac_event()
431 		tas5720->last_fault = 0;  in tas5720_dac_event()
432 		schedule_delayed_work(&tas5720->fault_check_work,  in tas5720_dac_event()
436 		cancel_delayed_work_sync(&tas5720->fault_check_work);  in tas5720_dac_event()
442 			dev_err(component->dev, "error shutting down component: %d\n",  in tas5720_dac_event()
457 	regcache_cache_only(tas5720->regmap, true);  in tas5720_suspend()
458 	regcache_mark_dirty(tas5720->regmap);  in tas5720_suspend()
460 	ret = regulator_bulk_disable(ARRAY_SIZE(tas5720->supplies),  in tas5720_suspend()
461 				     tas5720->supplies);  in tas5720_suspend()
463 		dev_err(component->dev, "failed to disable supplies: %d\n", ret);  in tas5720_suspend()
473 	ret = regulator_bulk_enable(ARRAY_SIZE(tas5720->supplies),  in tas5720_resume()
474 				    tas5720->supplies);  in tas5720_resume()
476 		dev_err(component->dev, "failed to enable supplies: %d\n", ret);  in tas5720_resume()
480 	regcache_cache_only(tas5720->regmap, false);  in tas5720_resume()
482 	ret = regcache_sync(tas5720->regmap);  in tas5720_resume()
484 		dev_err(component->dev, "failed to sync regcache: %d\n", ret);  in tas5720_resume()
534  * DAC analog gain. There are four discrete values to select from, ranging
535  * from 19.2 dB to 26.3dB.
545  * DAC analog gain for TAS5720A-Q1. There are three discrete values to select from, ranging
546  * from 19.2 dB to 25.0dB.
555  * DAC digital volumes. From -103.5 to 24 dB in 0.5 dB or 0.25 dB steps
556  * depending on the device. Note that setting the gain below -100 dB
562 static DECLARE_TLV_DB_SCALE(tas5720_dac_tlv, -10350, 50, 0);
563 static DECLARE_TLV_DB_SCALE(tas5722_dac_tlv, -10350, 25, 0);
572 	ucontrol->value.integer.value[0] = val << 1;  in tas5722_volume_get()
575 	ucontrol->value.integer.value[0] |= val & TAS5722_VOL_CONTROL_LSB;  in tas5722_volume_get()
584 	unsigned int sel = ucontrol->value.integer.value[0];  in tas5722_volume_set()
596 	SOC_SINGLE_TLV("Speaker Driver Analog Gain", TAS5720_ANALOG_CTRL_REG,
605 	SOC_SINGLE_TLV("Speaker Driver Analog Gain", TAS5720_ANALOG_CTRL_REG,
614 	SOC_SINGLE_TLV("Speaker Driver Analog Gain", TAS5720_ANALOG_CTRL_REG,
707 		.name = "tas5720-amplifier",
721 	{ "tas5720a-q1", TAS5720A_Q1 },
729 	struct device *dev = &client->dev;  in tas5720_probe()
738 		return -ENOMEM;  in tas5720_probe()
741 	data->tas5720_client = client;  in tas5720_probe()
742 	data->devtype = id->driver_data;  in tas5720_probe()
744 	switch (id->driver_data) {  in tas5720_probe()
756 		return -EINVAL;  in tas5720_probe()
758 	data->regmap = devm_regmap_init_i2c(client, regmap_config);  in tas5720_probe()
759 	if (IS_ERR(data->regmap)) {  in tas5720_probe()
760 		ret = PTR_ERR(data->regmap);  in tas5720_probe()
765 	for (i = 0; i < ARRAY_SIZE(data->supplies); i++)  in tas5720_probe()
766 		data->supplies[i].supply = tas5720_supply_names[i];  in tas5720_probe()
768 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(data->supplies),  in tas5720_probe()
769 				      data->supplies);  in tas5720_probe()
777 	switch (id->driver_data) {  in tas5720_probe()
779 		ret = devm_snd_soc_register_component(&client->dev,  in tas5720_probe()
785 		ret = devm_snd_soc_register_component(&client->dev,  in tas5720_probe()
791 		ret = devm_snd_soc_register_component(&client->dev,  in tas5720_probe()
798 		return -EINVAL;  in tas5720_probe()
811 	{ .compatible = "ti,tas5720a-q1", },
830 MODULE_DESCRIPTION("TAS5720 Audio amplifier driver");