1 // SPDX-License-Identifier: GPL-2.0-only
3  * max98926.c -- ALSA SoC MAX98926 driver
4  * Copyright 2013-15 Maxim Integrated Products
49 	{ 0x1B, 0x00 }, /* DAI Clock Mode 2 */
56 	{ 0x22, 0x00 }, /* DOUT Configuration VMON */
57 	{ 0x23, 0x00 }, /* DOUT Configuration IMON */
58 	{ 0x24, 0x00 }, /* DOUT Configuration VBAT */
59 	{ 0x25, 0x00 }, /* DOUT Configuration VBST */
60 	{ 0x26, 0x00 }, /* DOUT Configuration FLAG */
61 	{ 0x27, 0xFF }, /* DOUT HiZ Configuration 1 */
62 	{ 0x28, 0xFF }, /* DOUT HiZ Configuration 2 */
63 	{ 0x29, 0xFF }, /* DOUT HiZ Configuration 3 */
64 	{ 0x2A, 0xFF }, /* DOUT HiZ Configuration 4 */
65 	{ 0x2B, 0x02 }, /* DOUT Drive Strength */
114 		MAX98926_DAC_IN_SEL_SHIFT, 2, 0),
115 	SOC_DAPM_SINGLE("(Left+Right)/2 Switch", MAX98926_GAIN,
187 	default:  in max98926_volatile_register()
200 	default:  in max98926_readable_register()
205 static DECLARE_TLV_DB_SCALE(max98926_spk_tlv, -600, 100, 0);
222 		(1<<MAX98926_SPK_GAIN_WIDTH)-1, 0,
232 		(1<<MAX98926_ALC_TH_WIDTH)-1, 0),
236 		(1<<MAX98926_BST_ILIM_SHIFT)-1, 0,
261 		.sr = 2,
291 	regmap_update_bits(max98926->regmap,  in max98926_set_sense_data()
295 	regmap_update_bits(max98926->regmap,  in max98926_set_sense_data()
300 	if (!max98926->interleave_mode) {  in max98926_set_sense_data()
302 		regmap_update_bits(max98926->regmap,  in max98926_set_sense_data()
305 			max98926->v_slot);  in max98926_set_sense_data()
307 		regmap_update_bits(max98926->regmap,  in max98926_set_sense_data()
310 			max98926->i_slot);  in max98926_set_sense_data()
313 		regmap_update_bits(max98926->regmap,  in max98926_set_sense_data()
318 		regmap_update_bits(max98926->regmap,  in max98926_set_sense_data()
321 			max98926->v_slot);  in max98926_set_sense_data()
328 	struct snd_soc_component *component = codec_dai->component;  in max98926_dai_set_fmt()
332 	dev_dbg(component->dev, "%s: fmt 0x%08X\n", __func__, fmt);  in max98926_dai_set_fmt()
338 	default:  in max98926_dai_set_fmt()
339 		dev_err(component->dev, "DAI clock mode unsupported\n");  in max98926_dai_set_fmt()
340 		return -EINVAL;  in max98926_dai_set_fmt()
355 	default:  in max98926_dai_set_fmt()
356 		dev_err(component->dev, "DAI invert mode unsupported\n");  in max98926_dai_set_fmt()
357 		return -EINVAL;  in max98926_dai_set_fmt()
360 	regmap_write(max98926->regmap,  in max98926_dai_set_fmt()
362 	regmap_update_bits(max98926->regmap, MAX98926_FORMAT,  in max98926_dai_set_fmt()
371 	int dai_sr = -EINVAL;  in max98926_dai_hw_params()
373 	struct snd_soc_component *component = dai->component;  in max98926_dai_hw_params()
379 		regmap_update_bits(max98926->regmap,  in max98926_dai_hw_params()
383 		max98926->ch_size = 16;  in max98926_dai_hw_params()
386 		regmap_update_bits(max98926->regmap,  in max98926_dai_hw_params()
390 		max98926->ch_size = 24;  in max98926_dai_hw_params()
393 		regmap_update_bits(max98926->regmap,  in max98926_dai_hw_params()
397 		max98926->ch_size = 32;  in max98926_dai_hw_params()
399 	default:  in max98926_dai_hw_params()
400 		dev_dbg(component->dev, "format unsupported %d\n",  in max98926_dai_hw_params()
402 		return -EINVAL;  in max98926_dai_hw_params()
406 	blr_clk_ratio = params_channels(params) * max98926->ch_size;  in max98926_dai_hw_params()
410 		regmap_update_bits(max98926->regmap,  in max98926_dai_hw_params()
416 		regmap_update_bits(max98926->regmap,  in max98926_dai_hw_params()
422 		regmap_update_bits(max98926->regmap,  in max98926_dai_hw_params()
427 	default:  in max98926_dai_hw_params()
428 		return -EINVAL;  in max98926_dai_hw_params()
439 		return -EINVAL;  in max98926_dai_hw_params()
442 	regmap_update_bits(max98926->regmap,  in max98926_dai_hw_params()
458 	.name = "max98926-aif1",
462 		.channels_max = 2,
469 		.channels_max = 2,
481 	max98926->component = component;  in max98926_probe()
483 	/* Hi-Z all the slots */  in max98926_probe()
484 	regmap_write(max98926->regmap, MAX98926_DOUT_HIZ_CFG4, 0xF0);  in max98926_probe()
518 	max98926 = devm_kzalloc(&i2c->dev,  in max98926_i2c_probe()
521 		return -ENOMEM;  in max98926_i2c_probe()
524 	max98926->regmap = devm_regmap_init_i2c(i2c, &max98926_regmap);  in max98926_i2c_probe()
525 	if (IS_ERR(max98926->regmap)) {  in max98926_i2c_probe()
526 		ret = PTR_ERR(max98926->regmap);  in max98926_i2c_probe()
527 		dev_err(&i2c->dev,  in max98926_i2c_probe()
531 	if (of_property_read_bool(i2c->dev.of_node, "maxim,interleave-mode") ||  in max98926_i2c_probe()
532 	    of_property_read_bool(i2c->dev.of_node, "interleave-mode"))  in max98926_i2c_probe()
533 		max98926->interleave_mode = true;  in max98926_i2c_probe()
535 	if (!of_property_read_u32(i2c->dev.of_node, "vmon-slot-no", &value)) {  in max98926_i2c_probe()
537 			dev_err(&i2c->dev, "vmon slot number is wrong:\n");  in max98926_i2c_probe()
538 			return -EINVAL;  in max98926_i2c_probe()
540 		max98926->v_slot = value;  in max98926_i2c_probe()
542 	if (!of_property_read_u32(i2c->dev.of_node, "imon-slot-no", &value)) {  in max98926_i2c_probe()
544 			dev_err(&i2c->dev, "imon slot number is wrong:\n");  in max98926_i2c_probe()
545 			return -EINVAL;  in max98926_i2c_probe()
547 		max98926->i_slot = value;  in max98926_i2c_probe()
549 	ret = regmap_read(max98926->regmap,  in max98926_i2c_probe()
552 		dev_err(&i2c->dev, "Failed to read: %x\n", reg);  in max98926_i2c_probe()
556 	ret = devm_snd_soc_register_component(&i2c->dev,  in max98926_i2c_probe()
560 		dev_err(&i2c->dev,  in max98926_i2c_probe()
562 	dev_info(&i2c->dev, "device version: %x\n", reg);  in max98926_i2c_probe()