1 // SPDX-License-Identifier: GPL-2.0-only
3  * wm8940.c  --  WM8940 ALSA Soc Audio driver
145 	{ 0x31, 0x0002 }, /* Output Control */
153 static const char *wm8940_companding[] = { "Off", "NC", "u-law", "A-law" };
171 static DECLARE_TLV_DB_SCALE(wm8940_spk_vol_tlv, -5700, 100, 1);
172 static DECLARE_TLV_DB_SCALE(wm8940_att_tlv, -1000, 1000, 0);
173 static DECLARE_TLV_DB_SCALE(wm8940_pga_vol_tlv, -1200, 75, 0);
174 static DECLARE_TLV_DB_SCALE(wm8940_alc_min_tlv, -1200, 600, 0);
176 static DECLARE_TLV_DB_SCALE(wm8940_alc_tar_tlv, -2250, 50, 0);
178 static DECLARE_TLV_DB_SCALE(wm8940_lim_thresh_tlv, -600, 100, 0);
179 static DECLARE_TLV_DB_SCALE(wm8940_adc_tlv, -12750, 50, 1);
246 	SOC_DAPM_SINGLE("Aux Playback Switch", WM8940_SPKMIX, 5, 1, 0),
252 	SOC_DAPM_SINGLE("Aux Playback Switch", WM8940_MONOMIX, 2, 1, 0),
256 static DECLARE_TLV_DB_SCALE(wm8940_boost_vol_tlv, -1500, 300, 1);
259 	SOC_DAPM_SINGLE_TLV("Aux Volume", WM8940_ADCBOOST,
266 	SOC_DAPM_SINGLE("AUX Switch", WM8940_INPUTCTL, 2, 1, 0),
287 	SND_SOC_DAPM_PGA("Aux Input", WM8940_POWER1, 6, 0, NULL, 0),
299 	SND_SOC_DAPM_INPUT("AUX"),
303 	/* Mono output mixer */
305 	{"Mono Mixer", "Aux Playback Switch", "Aux Input"},
308 	/* Speaker output mixer */
310 	{"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
324 	{"Mic PGA", "AUX Switch", "AUX"},
329 	{"Boost Mixer", "Aux Volume", "Aux Input"},
339 	struct snd_soc_component *component = codec_dai->component;  in wm8940_set_dai_fmt()
350 		return -EINVAL;  in wm8940_set_dai_fmt()
394 	struct snd_soc_component *component = dai->component;  in wm8940_i2s_hw_params()
402 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE  in wm8940_i2s_hw_params()
457 	struct snd_soc_component *component = dai->component;  in wm8940_mute()
493 			ret = regcache_sync(wm8940->regmap);  in wm8940_set_bias_level()
495 				dev_err(component->dev, "Failed to sync cache: %d\n", ret);  in wm8940_set_bias_level()
524 static void pll_factors(unsigned int target, unsigned int source)  in pll_factors()  argument
529 	Ndiv = target / source;  in pll_factors()
532 		source <<= 1;  in pll_factors()
535 		Ndiv = target / source;  in pll_factors()
537 		source >>= 2;  in pll_factors()
540 		Ndiv = target / source;  in pll_factors()
542 		source >>= 1;  in pll_factors()
545 		Ndiv = target / source;  in pll_factors()
555 	Nmod = target % source;  in pll_factors()
558 	do_div(Kpart, source);  in pll_factors()
574 		int source, unsigned int freq_in, unsigned int freq_out)  in wm8940_set_dai_pll()  argument
576 	struct snd_soc_component *component = codec_dai->component;  in wm8940_set_dai_pll()
617 	struct snd_soc_component *component = codec_dai->component;  in wm8940_set_dai_sysclk()
626 		wm8940->sysclk = freq;  in wm8940_set_dai_sysclk()
629 	return -EINVAL;  in wm8940_set_dai_sysclk()
635 	struct snd_soc_component *component = codec_dai->component;  in wm8940_set_dai_clkdiv()
675 	.name = "wm8940-hifi",
696 	struct wm8940_setup_data *pdata = component->dev->platform_data;  in wm8940_probe()
702 		dev_err(component->dev, "Failed to issue reset\n");  in wm8940_probe()
713 		dev_warn(component->dev, "No platform data supplied\n");  in wm8940_probe()
716 		ret = snd_soc_component_write(component, WM8940_OUTPUTCTL, reg | pdata->vroi);  in wm8940_probe()
759 	wm8940 = devm_kzalloc(&i2c->dev, sizeof(struct wm8940_priv),  in wm8940_i2c_probe()
762 		return -ENOMEM;  in wm8940_i2c_probe()
764 	wm8940->regmap = devm_regmap_init_i2c(i2c, &wm8940_regmap);  in wm8940_i2c_probe()
765 	if (IS_ERR(wm8940->regmap))  in wm8940_i2c_probe()
766 		return PTR_ERR(wm8940->regmap);  in wm8940_i2c_probe()
770 	ret = devm_snd_soc_register_component(&i2c->dev,  in wm8940_i2c_probe()