1 // SPDX-License-Identifier: GPL-2.0-only
3  * wm8988.c -- WM8988 ALSA SoC audio driver
129 static const char *bass_filter_txt[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" };
137 static const char *stereo_3d_lc_txt[] = {"200Hz", "500Hz"};
167 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
168 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
169 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
170 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
171 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
180 SOC_ENUM("Treble Cut-off", treble),
184 SOC_ENUM("3D Lower Cut-off", stereo_3d_lc),
185 SOC_ENUM("3D Upper Cut-off", stereo_3d_uc),
208 SOC_ENUM("Playback De-emphasis", deemph),
244 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);  in wm8988_lrc_control()
450 	u32 mclk;  member
451 	u32 rate;  member
457 /* codec hifi mclk clock divider coefficients */
507 static inline int get_coeff(int mclk, int rate)  in get_coeff()  argument
512 		if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)  in get_coeff()
516 	return -EINVAL;  in get_coeff()
555 	struct snd_soc_component *component = codec_dai->component;  in wm8988_set_dai_sysclk()
563 		wm8988->sysclk_constraints = &constraints_112896;  in wm8988_set_dai_sysclk()
564 		wm8988->sysclk = freq;  in wm8988_set_dai_sysclk()
571 		wm8988->sysclk_constraints = &constraints_12288;  in wm8988_set_dai_sysclk()
572 		wm8988->sysclk = freq;  in wm8988_set_dai_sysclk()
577 		wm8988->sysclk_constraints = &constraints_12;  in wm8988_set_dai_sysclk()
578 		wm8988->sysclk = freq;  in wm8988_set_dai_sysclk()
581 	return -EINVAL;  in wm8988_set_dai_sysclk()
587 	struct snd_soc_component *component = codec_dai->component;  in wm8988_set_dai_fmt()
598 		return -EINVAL;  in wm8988_set_dai_fmt()
618 		return -EINVAL;  in wm8988_set_dai_fmt()
635 		return -EINVAL;  in wm8988_set_dai_fmt()
645 	struct snd_soc_component *component = dai->component;  in wm8988_pcm_startup()
648 	/* The set of sample rates that can be supported depends on the  in wm8988_pcm_startup()
649 	 * MCLK supplied to the CODEC - enforce this.  in wm8988_pcm_startup()
651 	if (!wm8988->sysclk) {  in wm8988_pcm_startup()
652 		dev_err(component->dev,  in wm8988_pcm_startup()
653 			"No MCLK configured, call set_sysclk() on init\n");  in wm8988_pcm_startup()
654 		return -EINVAL;  in wm8988_pcm_startup()
657 	snd_pcm_hw_constraint_list(substream->runtime, 0,  in wm8988_pcm_startup()
659 				   wm8988->sysclk_constraints);  in wm8988_pcm_startup()
668 	struct snd_soc_component *component = dai->component;  in wm8988_pcm_hw_params()
674 	coeff = get_coeff(wm8988->sysclk, params_rate(params));  in wm8988_pcm_hw_params()
676 		coeff = get_coeff(wm8988->sysclk / 2, params_rate(params));  in wm8988_pcm_hw_params()
680 		dev_err(component->dev,  in wm8988_pcm_hw_params()
681 			"Unable to configure sample rate %dHz with %dHz MCLK\n",  in wm8988_pcm_hw_params()
682 			params_rate(params), wm8988->sysclk);  in wm8988_pcm_hw_params()
712 	struct snd_soc_component *component = dai->component;  in wm8988_mute()
739 			regcache_sync(wm8988->regmap);  in wm8988_set_bias_level()
774 	.name = "wm8988-hifi",
799 		dev_err(component->dev, "Failed to issue reset\n");  in wm8988_probe()
803 	/* set the update bits (we always update left then right) */  in wm8988_probe()
846 	wm8988 = devm_kzalloc(&spi->dev, sizeof(struct wm8988_priv),  in wm8988_spi_probe()
849 		return -ENOMEM;  in wm8988_spi_probe()
851 	wm8988->regmap = devm_regmap_init_spi(spi, &wm8988_regmap);  in wm8988_spi_probe()
852 	if (IS_ERR(wm8988->regmap)) {  in wm8988_spi_probe()
853 		ret = PTR_ERR(wm8988->regmap);  in wm8988_spi_probe()
854 		dev_err(&spi->dev, "Failed to init regmap: %d\n", ret);  in wm8988_spi_probe()
860 	ret = devm_snd_soc_register_component(&spi->dev,  in wm8988_spi_probe()
879 	wm8988 = devm_kzalloc(&i2c->dev, sizeof(struct wm8988_priv),  in wm8988_i2c_probe()
882 		return -ENOMEM;  in wm8988_i2c_probe()
886 	wm8988->regmap = devm_regmap_init_i2c(i2c, &wm8988_regmap);  in wm8988_i2c_probe()
887 	if (IS_ERR(wm8988->regmap)) {  in wm8988_i2c_probe()
888 		ret = PTR_ERR(wm8988->regmap);  in wm8988_i2c_probe()
889 		dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret);  in wm8988_i2c_probe()
893 	ret = devm_snd_soc_register_component(&i2c->dev,  in wm8988_i2c_probe()