1 // SPDX-License-Identifier: GPL-2.0-only
3  * ak4641.c  --  AK4641 ALSA Soc Audio driver
6  * Copyright (C) 2011 Dmitry Artamonow <mad_soft@inbox.ru>
77 		if (ak4641->deemph && deemph_settings[i] != 0 &&  in ak4641_set_deemph()
78 		    abs(deemph_settings[i] - ak4641->playback_fs) <  in ak4641_set_deemph()
79 		    abs(deemph_settings[best] - ak4641->playback_fs))  in ak4641_set_deemph()
82 		if (!ak4641->deemph && deemph_settings[i] == 0)  in ak4641_set_deemph()
86 	dev_dbg(component->dev, "Set deemphasis %d\n", best);  in ak4641_set_deemph()
96 	int deemph = ucontrol->value.integer.value[0];  in ak4641_put_deemph()
99 		return -EINVAL;  in ak4641_put_deemph()
101 	ak4641->deemph = deemph;  in ak4641_put_deemph()
112 	ucontrol->value.integer.value[0] = ak4641->deemph;  in ak4641_get_deemph()
116 static const char *ak4641_mono_out[] = {"(L + R)/2", "Hi-Z"};
122 static const DECLARE_TLV_DB_SCALE(mono_gain_tlv, -1700, 2300, 0);
124 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1050, 150, 0);
125 static const DECLARE_TLV_DB_SCALE(master_tlv, -12750, 50, 0);
126 static const DECLARE_TLV_DB_SCALE(mic_stereo_sidetone_tlv, -2700, 300, 0);
127 static const DECLARE_TLV_DB_SCALE(mic_mono_sidetone_tlv, -400, 400, 0);
128 static const DECLARE_TLV_DB_SCALE(capture_tlv, -800, 50, 0);
129 static const DECLARE_TLV_DB_SCALE(alc_tlv, -800, 50, 0);
130 static const DECLARE_TLV_DB_SCALE(aux_in_tlv, -2100, 300, 0);
307 	struct snd_soc_component *component = codec_dai->component;  in ak4641_set_dai_sysclk()
310 	ak4641->sysclk = freq;  in ak4641_set_dai_sysclk()
318 	struct snd_soc_component *component = dai->component;  in ak4641_i2s_hw_params()
324 		fs = ak4641->sysclk / rate;  in ak4641_i2s_hw_params()
326 		return -EINVAL;  in ak4641_i2s_hw_params()
340 		dev_err(component->dev, "Error: unsupported fs=%d\n", fs);  in ak4641_i2s_hw_params()
341 		return -EINVAL;  in ak4641_i2s_hw_params()
346 	/* Update de-emphasis filter for the new rate */  in ak4641_i2s_hw_params()
347 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {  in ak4641_i2s_hw_params()
348 		ak4641->playback_fs = rate;  in ak4641_i2s_hw_params()
358 	struct snd_soc_component *component = codec_dai->component;  in ak4641_pcm_set_dai_fmt()
377 		return -EINVAL;  in ak4641_pcm_set_dai_fmt()
390 	struct snd_soc_component *component = codec_dai->component;  in ak4641_i2s_set_dai_fmt()
402 		return -EINVAL;  in ak4641_i2s_set_dai_fmt()
410 	struct snd_soc_component *component = dai->component;  in ak4641_mute()
419 	struct ak4641_platform_data *pdata = component->dev->platform_data;  in ak4641_set_bias_level()
433 			if (pdata && gpio_is_valid(pdata->gpio_power))  in ak4641_set_bias_level()
434 				gpio_set_value(pdata->gpio_power, 1);  in ak4641_set_bias_level()
436 			if (pdata && gpio_is_valid(pdata->gpio_npdn))  in ak4641_set_bias_level()
437 				gpio_set_value(pdata->gpio_npdn, 1);  in ak4641_set_bias_level()
440 			ret = regcache_sync(ak4641->regmap);  in ak4641_set_bias_level()
442 				dev_err(component->dev,  in ak4641_set_bias_level()
452 		if (pdata && gpio_is_valid(pdata->gpio_npdn))  in ak4641_set_bias_level()
453 			gpio_set_value(pdata->gpio_npdn, 0);  in ak4641_set_bias_level()
454 		if (pdata && gpio_is_valid(pdata->gpio_power))  in ak4641_set_bias_level()
455 			gpio_set_value(pdata->gpio_power, 0);  in ak4641_set_bias_level()
456 		regcache_mark_dirty(ak4641->regmap);  in ak4641_set_bias_level()
476 	.hw_params    = NULL, /* rates are controlled by BT chip */
485 	.name = "ak4641-hifi",
491 		.rates = AK4641_RATES,
498 		.rates = AK4641_RATES,
505 	.name = "ak4641-voice",
511 		.rates = AK4641_RATES_BT,
518 		.rates = AK4641_RATES_BT,
552 	struct ak4641_platform_data *pdata = i2c->dev.platform_data;  in ak4641_i2c_probe()
556 	ak4641 = devm_kzalloc(&i2c->dev, sizeof(struct ak4641_priv),  in ak4641_i2c_probe()
559 		return -ENOMEM;  in ak4641_i2c_probe()
561 	ak4641->regmap = devm_regmap_init_i2c(i2c, &ak4641_regmap);  in ak4641_i2c_probe()
562 	if (IS_ERR(ak4641->regmap))  in ak4641_i2c_probe()
563 		return PTR_ERR(ak4641->regmap);  in ak4641_i2c_probe()
566 		if (gpio_is_valid(pdata->gpio_power)) {  in ak4641_i2c_probe()
567 			ret = gpio_request_one(pdata->gpio_power,  in ak4641_i2c_probe()
572 		if (gpio_is_valid(pdata->gpio_npdn)) {  in ak4641_i2c_probe()
573 			ret = gpio_request_one(pdata->gpio_npdn,  in ak4641_i2c_probe()
579 			gpio_set_value(pdata->gpio_npdn, 1);  in ak4641_i2c_probe()
585 	ret = devm_snd_soc_register_component(&i2c->dev,  in ak4641_i2c_probe()
595 		if (gpio_is_valid(pdata->gpio_power))  in ak4641_i2c_probe()
596 			gpio_set_value(pdata->gpio_power, 0);  in ak4641_i2c_probe()
597 		if (gpio_is_valid(pdata->gpio_npdn))  in ak4641_i2c_probe()
598 			gpio_free(pdata->gpio_npdn);  in ak4641_i2c_probe()
601 	if (pdata && gpio_is_valid(pdata->gpio_power))  in ak4641_i2c_probe()
602 		gpio_free(pdata->gpio_power);  in ak4641_i2c_probe()
609 	struct ak4641_platform_data *pdata = i2c->dev.platform_data;  in ak4641_i2c_remove()
612 		if (gpio_is_valid(pdata->gpio_power)) {  in ak4641_i2c_remove()
613 			gpio_set_value(pdata->gpio_power, 0);  in ak4641_i2c_remove()
614 			gpio_free(pdata->gpio_power);  in ak4641_i2c_remove()
616 		if (gpio_is_valid(pdata->gpio_npdn))  in ak4641_i2c_remove()
617 			gpio_free(pdata->gpio_npdn);  in ak4641_i2c_remove()