1 // SPDX-License-Identifier: GPL-2.0-only
3  * wm8960.c  --  WM8960 ALSA SoC Audio driver
5  * Copyright 2007-11 Wolfson Microelectronics, plc
28 /* R25 - Power 1 */
32 /* R26 - Power 2 */
37 /* R28 - Anti-pop 1 */
44 /* R29 - Anti-pop 2 */
176 	if (wm8960->deemph) {  in wm8960_set_deemph()
179 			if (abs(deemph_settings[i] - wm8960->lrclk) <  in wm8960_set_deemph()
180 			    abs(deemph_settings[best] - wm8960->lrclk))  in wm8960_set_deemph()
189 	dev_dbg(component->dev, "Set deemphasis %d\n", val);  in wm8960_set_deemph()
201 	ucontrol->value.integer.value[0] = wm8960->deemph;  in wm8960_get_deemph()
210 	unsigned int deemph = ucontrol->value.integer.value[0];  in wm8960_put_deemph()
213 		return -EINVAL;  in wm8960_put_deemph()
215 	wm8960->deemph = deemph;  in wm8960_put_deemph()
220 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
221 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1725, 75, 0);
222 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
223 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
224 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
225 static const DECLARE_TLV_DB_SCALE(lineinboost_tlv, -1500, 300, 1);
239 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
241 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
243 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
245 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
247 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT1 Volume",
249 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT1 Volume",
267 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
275 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
276 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
295 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
299 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
315 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
325 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
331 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
337 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
355 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
357 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
408 	{ "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
409 	{ "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
410 	{ "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
412 	{ "Left Input Mixer", "Boost Switch", "Left Boost Mixer" },
413 	{ "Left Input Mixer", "Boost Switch", "LINPUT1" },  /* Really Boost Switch */
417 	{ "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
418 	{ "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
419 	{ "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
421 	{ "Right Input Mixer", "Boost Switch", "Right Boost Mixer" },
422 	{ "Right Input Mixer", "Boost Switch", "RINPUT1" },  /* Really Boost Switch */
430 	{ "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer" },
434 	{ "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" },
473 	struct wm8960_data *pdata = &wm8960->pdata;  in wm8960_add_widgets()
485 	if (pdata && pdata->capless) {  in wm8960_add_widgets()
504 	list_for_each_entry(w, &component->card->widgets, list) {  in wm8960_add_widgets()
505 		if (w->dapm != dapm)  in wm8960_add_widgets()
507 		if (strcmp(w->name, "LOUT1 PGA") == 0)  in wm8960_add_widgets()
508 			wm8960->lout1 = w;  in wm8960_add_widgets()
509 		if (strcmp(w->name, "ROUT1 PGA") == 0)  in wm8960_add_widgets()
510 			wm8960->rout1 = w;  in wm8960_add_widgets()
511 		if (strcmp(w->name, "OUT3 VMID") == 0)  in wm8960_add_widgets()
512 			wm8960->out3 = w;  in wm8960_add_widgets()
521 	struct snd_soc_component *component = codec_dai->component;  in wm8960_set_dai_fmt()
532 		return -EINVAL;  in wm8960_set_dai_fmt()
552 		return -EINVAL;  in wm8960_set_dai_fmt()
569 		return -EINVAL;  in wm8960_set_dai_fmt()
592 /* -1 for reserved value */
593 static const int sysclk_divs[] = { 1, -1, 2, -1 };
605  * wm8960_configure_sysclk - checks if there is a sysclk frequency available
607  *		- sysclk     = MCLK / sysclk_divs
608  *		- lrclk      = sysclk / dac_divs
609  *		- 10 * bclk  = sysclk / bclk_divs
622  *  -1, in case no sysclk frequency available found
635 	*bclk_idx = -1;  in wm8960_configure_sysclk()
637 	bclk = wm8960->bclk;  in wm8960_configure_sysclk()
638 	lrclk = wm8960->lrclk;  in wm8960_configure_sysclk()
642 		if (sysclk_divs[i] == -1)  in wm8960_configure_sysclk()
649 				diff = sysclk - bclk * bclk_divs[k] / 10;  in wm8960_configure_sysclk()
673  * wm8960_configure_pll - checks if there is a PLL out frequency available
675  *		- sysclk      = lrclk * dac_divs
676  *		- freq_out    = sysclk * sysclk_divs
677  *		- 10 * sysclk = bclk * bclk_divs
703 	bclk = wm8960->bclk;  in wm8960_configure_pll()
704 	lrclk = wm8960->lrclk;  in wm8960_configure_pll()
707 	best_freq_out = -EINVAL;  in wm8960_configure_pll()
708 	*sysclk_idx = *dac_idx = *bclk_idx = -1;  in wm8960_configure_pll()
711 		if (sysclk_divs[i] == -1)  in wm8960_configure_pll()
721 				diff = sysclk - bclk * bclk_divs[k] / 10;  in wm8960_configure_pll()
750 		dev_dbg(component->dev,  in wm8960_configure_clocking()
755 	if (wm8960->clk_id != WM8960_SYSCLK_MCLK && !wm8960->freq_in) {  in wm8960_configure_clocking()
756 		dev_err(component->dev, "No MCLK configured\n");  in wm8960_configure_clocking()
757 		return -EINVAL;  in wm8960_configure_clocking()
760 	freq_in = wm8960->freq_in;  in wm8960_configure_clocking()
767 	if (wm8960->clk_id == WM8960_SYSCLK_AUTO) {  in wm8960_configure_clocking()
771 	} else if (wm8960->sysclk) {  in wm8960_configure_clocking()
772 		freq_out = wm8960->sysclk;  in wm8960_configure_clocking()
774 		dev_err(component->dev, "No SYSCLK configured\n");  in wm8960_configure_clocking()
775 		return -EINVAL;  in wm8960_configure_clocking()
778 	if (wm8960->clk_id != WM8960_SYSCLK_PLL) {  in wm8960_configure_clocking()
782 		} else if (wm8960->clk_id != WM8960_SYSCLK_AUTO) {  in wm8960_configure_clocking()
783 			dev_err(component->dev, "failed to configure clock\n");  in wm8960_configure_clocking()
784 			return -EINVAL;  in wm8960_configure_clocking()
790 		dev_err(component->dev, "failed to configure clock via PLL\n");  in wm8960_configure_clocking()
813 	struct snd_soc_component *component = dai->component;  in wm8960_hw_params()
816 	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;  in wm8960_hw_params()
819 	wm8960->bclk = snd_soc_params_to_bclk(params);  in wm8960_hw_params()
821 		wm8960->bclk *= 2;  in wm8960_hw_params()
841 		dev_err(component->dev, "unsupported width %d\n",  in wm8960_hw_params()
843 		return -EINVAL;  in wm8960_hw_params()
846 	wm8960->lrclk = params_rate(params);  in wm8960_hw_params()
861 	wm8960->is_stream_in_use[tx] = true;  in wm8960_hw_params()
863 	if (!wm8960->is_stream_in_use[!tx])  in wm8960_hw_params()
872 	struct snd_soc_component *component = dai->component;  in wm8960_hw_free()
874 	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;  in wm8960_hw_free()
876 	wm8960->is_stream_in_use[tx] = false;  in wm8960_hw_free()
883 	struct snd_soc_component *component = dai->component;  in wm8960_mute()
906 			if (!IS_ERR(wm8960->mclk)) {  in wm8960_set_bias_level_out3()
907 				ret = clk_prepare_enable(wm8960->mclk);  in wm8960_set_bias_level_out3()
909 					dev_err(component->dev,  in wm8960_set_bias_level_out3()
929 			if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1))  in wm8960_set_bias_level_out3()
932 			if (!IS_ERR(wm8960->mclk))  in wm8960_set_bias_level_out3()
933 				clk_disable_unprepare(wm8960->mclk);  in wm8960_set_bias_level_out3()
944 			regcache_sync(wm8960->regmap);  in wm8960_set_bias_level_out3()
946 			/* Enable anti-pop features */  in wm8960_set_bias_level_out3()
959 			/* Disable anti-pop features */  in wm8960_set_bias_level_out3()
968 		/* Enable anti-pop features */  in wm8960_set_bias_level_out3()
1005 			if (wm8960->lout1 && wm8960->lout1->power)  in wm8960_set_bias_level_capless()
1007 			if (wm8960->rout1 && wm8960->rout1->power)  in wm8960_set_bias_level_capless()
1009 			if (wm8960->out3 && wm8960->out3->power)  in wm8960_set_bias_level_capless()
1029 			if (!IS_ERR(wm8960->mclk)) {  in wm8960_set_bias_level_capless()
1030 				ret = clk_prepare_enable(wm8960->mclk);  in wm8960_set_bias_level_capless()
1032 					dev_err(component->dev,  in wm8960_set_bias_level_capless()
1050 			if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1))  in wm8960_set_bias_level_capless()
1053 			if (!IS_ERR(wm8960->mclk))  in wm8960_set_bias_level_capless()
1054 				clk_disable_unprepare(wm8960->mclk);  in wm8960_set_bias_level_capless()
1056 			/* Enable anti-pop mode */  in wm8960_set_bias_level_capless()
1069 			regcache_sync(wm8960->regmap);  in wm8960_set_bias_level_capless()
1084 			/* Disable anti-pop features */  in wm8960_set_bias_level_capless()
1143 	pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);  in pll_factors()
1151 		pll_div->pre_div = 1;  in pll_factors()
1154 		pll_div->pre_div = 0;  in pll_factors()
1158 		return -EINVAL;  in pll_factors()
1161 	pll_div->n = Ndiv;  in pll_factors()
1176 	pll_div->k = K;  in pll_factors()
1179 		 pll_div->n, pll_div->k, pll_div->pre_div);  in pll_factors()
1229 	struct snd_soc_component *component = codec_dai->component;  in wm8960_set_dai_pll()
1232 	wm8960->freq_in = freq_in;  in wm8960_set_dai_pll()
1243 	struct snd_soc_component *component = codec_dai->component;  in wm8960_set_dai_clkdiv()
1268 		return -EINVAL;  in wm8960_set_dai_clkdiv()
1279 	return wm8960->set_bias_level(component, level);  in wm8960_set_bias_level()
1285 	struct snd_soc_component *component = dai->component;  in wm8960_set_dai_sysclk()
1300 		return -EINVAL;  in wm8960_set_dai_sysclk()
1303 	wm8960->sysclk = freq;  in wm8960_set_dai_sysclk()
1304 	wm8960->clk_id = clk_id;  in wm8960_set_dai_sysclk()
1327 	.name = "wm8960-hifi",
1347 	struct wm8960_data *pdata = &wm8960->pdata;  in wm8960_probe()
1349 	if (pdata->capless)  in wm8960_probe()
1350 		wm8960->set_bias_level = wm8960_set_bias_level_capless;  in wm8960_probe()
1352 		wm8960->set_bias_level = wm8960_set_bias_level_out3;  in wm8960_probe()
1386 	const struct device_node *np = i2c->dev.of_node;  in wm8960_set_pdata_from_of()
1389 		pdata->capless = true;  in wm8960_set_pdata_from_of()
1391 	if (of_property_read_bool(np, "wlf,shared-lrclk"))  in wm8960_set_pdata_from_of()
1392 		pdata->shared_lrclk = true;  in wm8960_set_pdata_from_of()
1394 	of_property_read_u32_array(np, "wlf,gpio-cfg", pdata->gpio_cfg,  in wm8960_set_pdata_from_of()
1395 				   ARRAY_SIZE(pdata->gpio_cfg));  in wm8960_set_pdata_from_of()
1397 	of_property_read_u32_array(np, "wlf,hp-cfg", pdata->hp_cfg,  in wm8960_set_pdata_from_of()
1398 				   ARRAY_SIZE(pdata->hp_cfg));  in wm8960_set_pdata_from_of()
1404 	struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);  in wm8960_i2c_probe()
1408 	wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv),  in wm8960_i2c_probe()
1411 		return -ENOMEM;  in wm8960_i2c_probe()
1413 	wm8960->mclk = devm_clk_get(&i2c->dev, "mclk");  in wm8960_i2c_probe()
1414 	if (IS_ERR(wm8960->mclk)) {  in wm8960_i2c_probe()
1415 		if (PTR_ERR(wm8960->mclk) == -EPROBE_DEFER)  in wm8960_i2c_probe()
1416 			return -EPROBE_DEFER;  in wm8960_i2c_probe()
1419 	wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap);  in wm8960_i2c_probe()
1420 	if (IS_ERR(wm8960->regmap))  in wm8960_i2c_probe()
1421 		return PTR_ERR(wm8960->regmap);  in wm8960_i2c_probe()
1424 		memcpy(&wm8960->pdata, pdata, sizeof(struct wm8960_data));  in wm8960_i2c_probe()
1425 	else if (i2c->dev.of_node)  in wm8960_i2c_probe()
1426 		wm8960_set_pdata_from_of(i2c, &wm8960->pdata);  in wm8960_i2c_probe()
1428 	ret = wm8960_reset(wm8960->regmap);  in wm8960_i2c_probe()
1430 		dev_err(&i2c->dev, "Failed to issue reset\n");  in wm8960_i2c_probe()
1434 	if (wm8960->pdata.shared_lrclk) {  in wm8960_i2c_probe()
1435 		ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,  in wm8960_i2c_probe()
1438 			dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",  in wm8960_i2c_probe()
1445 	regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100);  in wm8960_i2c_probe()
1446 	regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100);  in wm8960_i2c_probe()
1447 	regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100);  in wm8960_i2c_probe()
1448 	regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100);  in wm8960_i2c_probe()
1449 	regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100);  in wm8960_i2c_probe()
1450 	regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100);  in wm8960_i2c_probe()
1451 	regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100);  in wm8960_i2c_probe()
1452 	regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100);  in wm8960_i2c_probe()
1453 	regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100);  in wm8960_i2c_probe()
1454 	regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100);  in wm8960_i2c_probe()
1457 	regmap_update_bits(wm8960->regmap, WM8960_IFACE2, 1 << 6,  in wm8960_i2c_probe()
1458 			   wm8960->pdata.gpio_cfg[0] << 6);  in wm8960_i2c_probe()
1459 	regmap_update_bits(wm8960->regmap, WM8960_ADDCTL4, 0xF << 4,  in wm8960_i2c_probe()
1460 			   wm8960->pdata.gpio_cfg[1] << 4);  in wm8960_i2c_probe()
1463 	regmap_update_bits(wm8960->regmap, WM8960_ADDCTL4, 3 << 2,  in wm8960_i2c_probe()
1464 			   wm8960->pdata.hp_cfg[0] << 2);  in wm8960_i2c_probe()
1465 	regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2, 3 << 5,  in wm8960_i2c_probe()
1466 			   wm8960->pdata.hp_cfg[1] << 5);  in wm8960_i2c_probe()
1467 	regmap_update_bits(wm8960->regmap, WM8960_ADDCTL1, 3,  in wm8960_i2c_probe()
1468 			   wm8960->pdata.hp_cfg[2]);  in wm8960_i2c_probe()
1472 	ret = devm_snd_soc_register_component(&i2c->dev,  in wm8960_i2c_probe()