1 // SPDX-License-Identifier: GPL-2.0-only
3  * wm8974.c  --  WM8974 ALSA Soc Audio driver
5  * Copyright 2006-2009 Wolfson Microelectronics PLC.
55 static const char *wm8974_companding[] = {"Off", "NC", "u-law", "A-law" };
91 static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1);
92 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
93 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1200, 75, 0);
94 static const DECLARE_TLV_DB_SCALE(spk_tlv, -5700, 100, 0);
103 SOC_ENUM("Playback De-emphasis", wm8974_enum[2]),
139 SOC_SINGLE("DAC Playback Limiter Boost", WM8974_DACLIM2,  0, 15, 0),
165 SOC_SINGLE("Capture Boost(+20dB)", WM8974_ADCBOOST,  8, 1, 0),
175 SOC_DAPM_SINGLE("Line Bypass Switch", WM8974_SPKMIX, 1, 1, 0),
182 SOC_DAPM_SINGLE("Line Bypass Switch", WM8974_MONOMIX, 1, 1, 0),
187 /* Boost mixer */
215 SND_SOC_DAPM_MIXER("Boost Mixer", WM8974_POWER2, 4, 0,
232 	{"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
237 	{"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
247 	/* Boost Mixer */
248 	{"ADC", NULL, "Boost Mixer"},
249 	{"Boost Mixer", "Aux Switch", "Aux Input"},
250 	{"Boost Mixer", NULL, "Input PGA"},
251 	{"Boost Mixer", NULL, "MICP"},
284 		pll_div->pre_div = 1;  in pll_factors()
287 		pll_div->pre_div = 0;  in pll_factors()
294 	pll_div->n = Ndiv;  in pll_factors()
309 	pll_div->k = K;  in pll_factors()
315 	struct snd_soc_component *component = codec_dai->component;  in wm8974_set_dai_pll()
352 	struct snd_soc_component *component = codec_dai->component;  in wm8974_set_dai_clkdiv()
369 		return -EINVAL;  in wm8974_set_dai_clkdiv()
409 	struct snd_soc_component *component = dai->component;  in wm8974_update_clocks()
416 	if (!priv->mclk || !priv->fs)  in wm8974_update_clocks()
419 	fs256 = 256 * priv->fs;  in wm8974_update_clocks()
421 	f = wm8974_get_mclkdiv(priv->mclk, fs256, &mclkdiv);  in wm8974_update_clocks()
423 	if (f != priv->mclk) {  in wm8974_update_clocks()
428 	wm8974_set_dai_pll(dai, 0, 0, priv->mclk, fpll);  in wm8974_update_clocks()
437 	struct snd_soc_component *component = dai->component;  in wm8974_set_dai_sysclk()
441 		return -EINVAL;  in wm8974_set_dai_sysclk()
443 	priv->mclk = freq;  in wm8974_set_dai_sysclk()
451 	struct snd_soc_component *component = codec_dai->component;  in wm8974_set_dai_fmt()
463 		return -EINVAL;  in wm8974_set_dai_fmt()
479 			return -EINVAL;  in wm8974_set_dai_fmt()
484 		return -EINVAL;  in wm8974_set_dai_fmt()
501 		return -EINVAL;  in wm8974_set_dai_fmt()
513 	struct snd_soc_component *component = dai->component;  in wm8974_pcm_hw_params()
519 	priv->fs = params_rate(params);  in wm8974_pcm_hw_params()
568 	struct snd_soc_component *component = dai->component;  in wm8974_mute()
595 			regcache_sync(dev_get_regmap(component->dev, NULL));  in wm8974_set_bias_level()
632 	.name = "wm8974-hifi",
665 		dev_err(component->dev, "Failed to issue reset\n");  in wm8974_probe()
695 	priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);  in wm8974_i2c_probe()
697 		return -ENOMEM;  in wm8974_i2c_probe()
705 	ret = devm_snd_soc_register_component(&i2c->dev,  in wm8974_i2c_probe()