1 // SPDX-License-Identifier: GPL-2.0
5  * Copyright (C) 2015-2017 Texas Instruments Incorporated - https://www.ti.com
13 #include <linux/delay.h>
30 	"avdd",		/* Analog power supply. Connect to 3.3-V supply. */
31 	"dvdd",		/* Digital power supply. Connect to 3.3-V supply. */
32 	"iovdd",	/* I/O power supply. Connect to 3.3-V or 1.8-V. */
45 static const DECLARE_TLV_DB_SCALE(pcm186x_pga_tlv, -1200, 50, 0);
49 			   PCM186X_PGA_VAL_CH1_R, 0, -24, 80, 7, 0,
55 			   PCM186X_PGA_VAL_CH1_R, 0, -24, 80, 7, 0,
58 			   PCM186X_PGA_VAL_CH2_R, 0, -24, 80, 7, 0,
265 	struct snd_soc_component *component = dai->component;  in pcm186x_hw_params()
276 	dev_dbg(component->dev, "%s() rate=%u format=0x%x width=%u channels=%u\n",  in pcm186x_hw_params()
305 		return -EINVAL;  in pcm186x_hw_params()
315 	if (priv->is_tdm_mode) {  in pcm186x_hw_params()
316 		/* Select TDM transmission data */  in pcm186x_hw_params()
328 			return -EINVAL;  in pcm186x_hw_params()
334 		/* In DSP/TDM mode, the LRCLK divider must be 256 */  in pcm186x_hw_params()
344 	if (priv->is_provider_mode) {  in pcm186x_hw_params()
345 		div_bck = priv->sysclk / (div_lrck * rate);  in pcm186x_hw_params()
347 		dev_dbg(component->dev,  in pcm186x_hw_params()
349 			__func__, priv->sysclk, div_bck, div_lrck);  in pcm186x_hw_params()
351 		snd_soc_component_write(component, PCM186X_BCK_DIV, div_bck - 1);  in pcm186x_hw_params()
352 		snd_soc_component_write(component, PCM186X_LRK_DIV, div_lrck - 1);  in pcm186x_hw_params()
360 	struct snd_soc_component *component = dai->component;  in pcm186x_set_fmt()
365 	dev_dbg(component->dev, "%s() format=0x%x\n", __func__, format);  in pcm186x_set_fmt()
369 		if (!priv->sysclk) {  in pcm186x_set_fmt()
370 			dev_err(component->dev, "operating in provider mode requires sysclock to be configured\n");  in pcm186x_set_fmt()
371 			return -EINVAL;  in pcm186x_set_fmt()
374 		priv->is_provider_mode = true;  in pcm186x_set_fmt()
377 		priv->is_provider_mode = false;  in pcm186x_set_fmt()
380 		dev_err(component->dev, "Invalid DAI master/slave interface\n");  in pcm186x_set_fmt()
381 		return -EINVAL;  in pcm186x_set_fmt()
389 		dev_err(component->dev, "Inverted DAI clocks not supported\n");  in pcm186x_set_fmt()
390 		return -EINVAL;  in pcm186x_set_fmt()
402 		priv->tdm_offset += 1;  in pcm186x_set_fmt()
405 		 * except we need to shift the TDM output by one BCK cycle  in pcm186x_set_fmt()
408 		priv->is_tdm_mode = true;  in pcm186x_set_fmt()
412 		dev_err(component->dev, "Invalid DAI format\n");  in pcm186x_set_fmt()
413 		return -EINVAL;  in pcm186x_set_fmt()
419 	snd_soc_component_write(component, PCM186X_TDM_TX_OFFSET, priv->tdm_offset);  in pcm186x_set_fmt()
430 	struct snd_soc_component *component = dai->component;  in pcm186x_set_tdm_slot()
434 	dev_dbg(component->dev,  in pcm186x_set_tdm_slot()
439 		dev_err(component->dev, "tdm tx mask must not be 0\n");  in pcm186x_set_tdm_slot()
440 		return -EINVAL;  in pcm186x_set_tdm_slot()
446 	if (last_slot - first_slot != hweight32(tx_mask) - 1) {  in pcm186x_set_tdm_slot()
447 		dev_err(component->dev, "tdm tx mask must be contiguous\n");  in pcm186x_set_tdm_slot()
448 		return -EINVAL;  in pcm186x_set_tdm_slot()
454 		dev_err(component->dev, "tdm tx slot selection out of bounds\n");  in pcm186x_set_tdm_slot()
455 		return -EINVAL;  in pcm186x_set_tdm_slot()
458 	priv->tdm_offset = tdm_offset;  in pcm186x_set_tdm_slot()
466 	struct snd_soc_component *component = dai->component;  in pcm186x_set_dai_sysclk()
469 	dev_dbg(component->dev, "%s() clk_id=%d freq=%u dir=%d\n",  in pcm186x_set_dai_sysclk()
472 	priv->sysclk = freq;  in pcm186x_set_dai_sysclk()
485 	.name = "pcm1863-aif",
497 	.name = "pcm1865-aif",
513 	ret = regulator_bulk_enable(ARRAY_SIZE(priv->supplies),  in pcm186x_power_on()
514 				    priv->supplies);  in pcm186x_power_on()
518 	regcache_cache_only(priv->regmap, false);  in pcm186x_power_on()
519 	ret = regcache_sync(priv->regmap);  in pcm186x_power_on()
521 		dev_err(component->dev, "Failed to restore cache\n");  in pcm186x_power_on()
522 		regcache_cache_only(priv->regmap, true);  in pcm186x_power_on()
523 		regulator_bulk_disable(ARRAY_SIZE(priv->supplies),  in pcm186x_power_on()
524 				       priv->supplies);  in pcm186x_power_on()
541 	regcache_cache_only(priv->regmap, true);  in pcm186x_power_off()
543 	return regulator_bulk_disable(ARRAY_SIZE(priv->supplies),  in pcm186x_power_off()
544 				     priv->supplies);  in pcm186x_power_off()
550 	dev_dbg(component->dev, "## %s: %d -> %d\n", __func__,  in pcm186x_set_bias_level()
645 		return -ENOMEM;  in pcm186x_probe()
648 	priv->regmap = regmap;  in pcm186x_probe()
650 	for (i = 0; i < ARRAY_SIZE(priv->supplies); i++)  in pcm186x_probe()
651 		priv->supplies[i].supply = pcm186x_supply_names[i];  in pcm186x_probe()
653 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(priv->supplies),  in pcm186x_probe()
654 				      priv->supplies);  in pcm186x_probe()
660 	ret = regulator_bulk_enable(ARRAY_SIZE(priv->supplies),  in pcm186x_probe()
661 				    priv->supplies);  in pcm186x_probe()
667 	/* Reset device registers for a consistent power-on like state */  in pcm186x_probe()
674 	ret = regulator_bulk_disable(ARRAY_SIZE(priv->supplies),  in pcm186x_probe()
675 				     priv->supplies);  in pcm186x_probe()