1 // SPDX-License-Identifier: GPL-2.0-only
3  * wm8940.c  --  WM8940 ALSA Soc Audio driver
155 static const char *wm8940_companding[] = { "Off", "NC", "u-law", "A-law" };
173 static DECLARE_TLV_DB_SCALE(wm8940_spk_vol_tlv, -5700, 100, 1);
174 static DECLARE_TLV_DB_SCALE(wm8940_att_tlv, -1000, 1000, 0);
175 static DECLARE_TLV_DB_SCALE(wm8940_pga_vol_tlv, -1200, 75, 0);
176 static DECLARE_TLV_DB_SCALE(wm8940_alc_min_tlv, -1200, 600, 0);
178 static DECLARE_TLV_DB_SCALE(wm8940_alc_tar_tlv, -2250, 50, 0);
180 static DECLARE_TLV_DB_SCALE(wm8940_lim_thresh_tlv, -600, 100, 0);
181 static DECLARE_TLV_DB_SCALE(wm8940_adc_tlv, -12750, 50, 1);
222 	SOC_ENUM("Mic Bias Level", wm8940_mic_bias_level_enum),
258 static DECLARE_TLV_DB_SCALE(wm8940_boost_vol_tlv, -1500, 300, 1);
260 	SOC_DAPM_SINGLE("Mic PGA Switch", WM8940_PGAGAIN, 6, 1, 1),
263 	SOC_DAPM_SINGLE_TLV("Mic Volume", WM8940_ADCBOOST,
291 	SND_SOC_DAPM_MIXER("Mic PGA", WM8940_POWER2, 2, 0,
297 	SND_SOC_DAPM_MICBIAS("Mic Bias", WM8940_POWER1, 4, 0),
324 	{"Mic PGA", "MICN Switch", "MICN"},
325 	{"Mic PGA", "MICP Switch", "MICP"},
326 	{"Mic PGA", "AUX Switch", "AUX"},
329 	{"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
330 	{"Boost Mixer", "Mic Volume",  "MICP"},
341 	struct snd_soc_component *component = codec_dai->component;  in wm8940_set_dai_fmt()
352 		return -EINVAL;  in wm8940_set_dai_fmt()
397 	struct snd_soc_component *component = dai->component;  in wm8940_i2s_hw_params()
405 	priv->fs = params_rate(params);  in wm8940_i2s_hw_params()
411 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE  in wm8940_i2s_hw_params()
466 	struct snd_soc_component *component = dai->component;  in wm8940_mute()
502 			ret = regcache_sync(wm8940->regmap);  in wm8940_set_bias_level()
504 				dev_err(component->dev, "Failed to sync cache: %d\n", ret);  in wm8940_set_bias_level()
585 	struct snd_soc_component *component = codec_dai->component;  in wm8940_set_dai_pll()
626 	struct snd_soc_component *component = codec_dai->component;  in wm8940_set_dai_clkdiv()
681 	struct snd_soc_component *codec = dai->component;  in wm8940_update_clocks()
688 	if (!priv->mclk || !priv->fs)  in wm8940_update_clocks()
691 	fs256 = 256 * priv->fs;  in wm8940_update_clocks()
693 	f = wm8940_get_mclkdiv(priv->mclk, fs256, &mclkdiv);  in wm8940_update_clocks()
694 	if (f != priv->mclk) {  in wm8940_update_clocks()
704 	wm8940_set_dai_pll(dai, 0, 0, priv->mclk, fpll);  in wm8940_update_clocks()
713 	struct snd_soc_component *codec = dai->component;  in wm8940_set_dai_sysclk()
717 		return -EINVAL;  in wm8940_set_dai_sysclk()
719 	priv->mclk = freq;  in wm8940_set_dai_sysclk()
743 	.name = "wm8940-hifi",
764 	struct wm8940_setup_data *pdata = component->dev->platform_data;  in wm8940_probe()
769 	 * Check chip ID for wm8940 - value of 0x00 offset  in wm8940_probe()
775 		dev_err(component->dev, "Wrong wm8940 chip ID: 0x%x\n", reg);  in wm8940_probe()
776 		return -ENODEV;  in wm8940_probe()
781 		dev_err(component->dev, "Failed to issue reset\n");  in wm8940_probe()
793 		ret = snd_soc_component_write(component, WM8940_OUTPUTCTL, reg | pdata->vroi);  in wm8940_probe()
834 	wm8940 = devm_kzalloc(&i2c->dev, sizeof(struct wm8940_priv),  in wm8940_i2c_probe()
837 		return -ENOMEM;  in wm8940_i2c_probe()
839 	wm8940->regmap = devm_regmap_init_i2c(i2c, &wm8940_regmap);  in wm8940_i2c_probe()
840 	if (IS_ERR(wm8940->regmap))  in wm8940_i2c_probe()
841 		return PTR_ERR(wm8940->regmap);  in wm8940_i2c_probe()
845 	ret = devm_snd_soc_register_component(&i2c->dev,  in wm8940_i2c_probe()