1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * Codec driver for ST STA350 2.1-channel high-efficiency digital audio system
35 #include <sound/soc-dapm.h>
58 /* Power-up register defaults */
159 	"vdd-dig",	/* digital supply, 3.3V */
160 	"vdd-pll",	/* pll supply, 3.3V */
161 	"vcc"		/* power amp supply, 5V - 26V */
182 static const DECLARE_TLV_DB_SCALE(mvol_tlv, -12750, 50, 1);
183 static const DECLARE_TLV_DB_SCALE(chvol_tlv, -7950, 50, 1);
184 static const DECLARE_TLV_DB_SCALE(tone_tlv, -1200, 200, 0);
187 	"Anti-Clipping", "Dynamic Range Compression"
190 	"User", "AC no clipping", "AC limited clipping (10%)",
199 	"FFX 3-state output - normal operation", "Binary output"
219 	0, 7, TLV_DB_SCALE_ITEM(-1200, 200, 0),
225 	1, 1, TLV_DB_SCALE_ITEM(-2900, 0, 0),
226 	2, 2, TLV_DB_SCALE_ITEM(-2000, 0, 0),
227 	3, 8, TLV_DB_SCALE_ITEM(-1400, 200, 0),
228 	8, 16, TLV_DB_SCALE_ITEM(-700, 100, 0),
232 	0, 7, TLV_DB_SCALE_ITEM(-3100, 200, 0),
233 	8, 13, TLV_DB_SCALE_ITEM(-1600, 100, 0),
234 	14, 16, TLV_DB_SCALE_ITEM(-1000, 300, 0),
239 	1, 2, TLV_DB_SCALE_ITEM(-3800, 200, 0),
240 	3, 4, TLV_DB_SCALE_ITEM(-3300, 200, 0),
241 	5, 12, TLV_DB_SCALE_ITEM(-3000, 200, 0),
242 	13, 16, TLV_DB_SCALE_ITEM(-1500, 300, 0),
299 	int numcoef = kcontrol->private_value >> 16;  in sta350_coefficient_info()
300 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;  in sta350_coefficient_info()
301 	uinfo->count = 3 * numcoef;  in sta350_coefficient_info()
310 	int numcoef = kcontrol->private_value >> 16;  in sta350_coefficient_get()
311 	int index = kcontrol->private_value & 0xffff;  in sta350_coefficient_get()
315 	mutex_lock(&sta350->coeff_lock);  in sta350_coefficient_get()
318 	regmap_read(sta350->regmap, STA350_CFUD, &cfud);  in sta350_coefficient_get()
324 	regmap_write(sta350->regmap, STA350_CFUD, cfud);  in sta350_coefficient_get()
326 	regmap_write(sta350->regmap, STA350_CFADDR2, index);  in sta350_coefficient_get()
328 		regmap_write(sta350->regmap, STA350_CFUD, cfud | 0x04);  in sta350_coefficient_get()
330 		regmap_write(sta350->regmap, STA350_CFUD, cfud | 0x08);  in sta350_coefficient_get()
332 		ret = -EINVAL;  in sta350_coefficient_get()
337 		regmap_read(sta350->regmap, STA350_B1CF1 + i, &val);  in sta350_coefficient_get()
338 		ucontrol->value.bytes.data[i] = val;  in sta350_coefficient_get()
342 	mutex_unlock(&sta350->coeff_lock);  in sta350_coefficient_get()
352 	int numcoef = kcontrol->private_value >> 16;  in sta350_coefficient_put()
353 	int index = kcontrol->private_value & 0xffff;  in sta350_coefficient_put()
358 	regmap_read(sta350->regmap, STA350_CFUD, &cfud);  in sta350_coefficient_put()
364 	regmap_write(sta350->regmap, STA350_CFUD, cfud);  in sta350_coefficient_put()
366 	regmap_write(sta350->regmap, STA350_CFADDR2, index);  in sta350_coefficient_put()
368 		sta350->coef_shadow[index + i] =  in sta350_coefficient_put()
369 			  (ucontrol->value.bytes.data[3 * i] << 16)  in sta350_coefficient_put()
370 			| (ucontrol->value.bytes.data[3 * i + 1] << 8)  in sta350_coefficient_put()
371 			| (ucontrol->value.bytes.data[3 * i + 2]);  in sta350_coefficient_put()
373 		regmap_write(sta350->regmap, STA350_B1CF1 + i,  in sta350_coefficient_put()
374 			     ucontrol->value.bytes.data[i]);  in sta350_coefficient_put()
376 		regmap_write(sta350->regmap, STA350_CFUD, cfud | 0x01);  in sta350_coefficient_put()
378 		regmap_write(sta350->regmap, STA350_CFUD, cfud | 0x02);  in sta350_coefficient_put()
380 		return -EINVAL;  in sta350_coefficient_put()
392 	regmap_read(sta350->regmap, STA350_CFUD, &cfud);  in sta350_sync_coef_shadow()
396 		regmap_write(sta350->regmap, STA350_CFADDR2, i);  in sta350_sync_coef_shadow()
397 		regmap_write(sta350->regmap, STA350_B1CF1,  in sta350_sync_coef_shadow()
398 			     (sta350->coef_shadow[i] >> 16) & 0xff);  in sta350_sync_coef_shadow()
399 		regmap_write(sta350->regmap, STA350_B1CF2,  in sta350_sync_coef_shadow()
400 			     (sta350->coef_shadow[i] >> 8) & 0xff);  in sta350_sync_coef_shadow()
401 		regmap_write(sta350->regmap, STA350_B1CF3,  in sta350_sync_coef_shadow()
402 			     (sta350->coef_shadow[i]) & 0xff);  in sta350_sync_coef_shadow()
405 		 * self-clearing, so do it explicitly  in sta350_sync_coef_shadow()
407 		regmap_write(sta350->regmap, STA350_CFUD, cfud);  in sta350_sync_coef_shadow()
408 		regmap_write(sta350->regmap, STA350_CFUD, cfud | 0x01);  in sta350_sync_coef_shadow()
420 	regmap_read(sta350->regmap, STA350_CFUD, &mute);  in sta350_cache_sync()
421 	regmap_write(sta350->regmap, STA350_MMUTE, mute | STA350_MMUTE_MMUTE);  in sta350_cache_sync()
423 	rc = regcache_sync(sta350->regmap);  in sta350_cache_sync()
424 	regmap_write(sta350->regmap, STA350_MMUTE, mute);  in sta350_cache_sync()
451 SOC_SINGLE("De-emphasis Filter Switch",
455 SOC_SINGLE("Post-scale Link Switch",
461 SOC_SINGLE("Zero-detect Mute Enable Switch",
511 SOC_SINGLE_TLV("Limiter1 Attack Threshold (AC Mode)",
514 SOC_SINGLE_TLV("Limiter2 Attack Threshold (AC Mode)",
517 SOC_SINGLE_TLV("Limiter1 Release Threshold (AC Mode)",
520 SOC_SINGLE_TLV("Limiter2 Release Threshold (AC Mode)",
536 BIQUAD_COEFS("Ch1 - Biquad 1", 0),
537 BIQUAD_COEFS("Ch1 - Biquad 2", 5),
538 BIQUAD_COEFS("Ch1 - Biquad 3", 10),
539 BIQUAD_COEFS("Ch1 - Biquad 4", 15),
540 BIQUAD_COEFS("Ch2 - Biquad 1", 20),
541 BIQUAD_COEFS("Ch2 - Biquad 2", 25),
542 BIQUAD_COEFS("Ch2 - Biquad 3", 30),
543 BIQUAD_COEFS("Ch2 - Biquad 4", 35),
544 BIQUAD_COEFS("High-pass", 40),
545 BIQUAD_COEFS("Low-pass", 45),
546 SINGLE_COEF("Ch1 - Prescale", 50),
547 SINGLE_COEF("Ch2 - Prescale", 51),
548 SINGLE_COEF("Ch1 - Postscale", 52),
549 SINGLE_COEF("Ch2 - Postscale", 53),
550 SINGLE_COEF("Ch3 - Postscale", 54),
551 SINGLE_COEF("Thermal warning - Postscale", 55),
552 SINGLE_COEF("Ch1 - Mix 1", 56),
553 SINGLE_COEF("Ch1 - Mix 2", 57),
554 SINGLE_COEF("Ch2 - Mix 1", 58),
555 SINGLE_COEF("Ch2 - Mix 2", 59),
556 SINGLE_COEF("Ch3 - Mix 1", 60),
557 SINGLE_COEF("Ch3 - Mix 2", 61),
596  * sta350_set_dai_sysclk - configure MCLK
612 	struct snd_soc_component *component = codec_dai->component;  in sta350_set_dai_sysclk()
615 	dev_dbg(component->dev, "mclk=%u\n", freq);  in sta350_set_dai_sysclk()
616 	sta350->mclk = freq;  in sta350_set_dai_sysclk()
622  * sta350_set_dai_fmt - configure the codec for the selected audio format
632 	struct snd_soc_component *component = codec_dai->component;  in sta350_set_dai_fmt()
640 		return -EINVAL;  in sta350_set_dai_fmt()
647 		sta350->format = fmt & SND_SOC_DAIFMT_FORMAT_MASK;  in sta350_set_dai_fmt()
650 		return -EINVAL;  in sta350_set_dai_fmt()
661 		return -EINVAL;  in sta350_set_dai_fmt()
664 	return regmap_update_bits(sta350->regmap, STA350_CONFB,  in sta350_set_dai_fmt()
669  * sta350_hw_params - program the STA350 with the given hardware parameters.
681 	struct snd_soc_component *component = dai->component;  in sta350_hw_params()
683 	int i, mcs = -EINVAL, ir = -EINVAL;  in sta350_hw_params()
688 	if (!sta350->mclk) {  in sta350_hw_params()
689 		dev_err(component->dev,  in sta350_hw_params()
690 			"sta350->mclk is unset. Unable to determine ratio\n");  in sta350_hw_params()
691 		return -EIO;  in sta350_hw_params()
695 	ratio = sta350->mclk / rate;  in sta350_hw_params()
696 	dev_dbg(component->dev, "rate: %u, ratio: %u\n", rate, ratio);  in sta350_hw_params()
706 		dev_err(component->dev, "Unsupported samplerate: %u\n", rate);  in sta350_hw_params()
707 		return -EINVAL;  in sta350_hw_params()
718 		dev_err(component->dev, "Unresolvable ratio: %u\n", ratio);  in sta350_hw_params()
719 		return -EINVAL;  in sta350_hw_params()
728 		dev_dbg(component->dev, "24bit\n");  in sta350_hw_params()
731 		dev_dbg(component->dev, "24bit or 32bit\n");  in sta350_hw_params()
732 		switch (sta350->format) {  in sta350_hw_params()
746 		dev_dbg(component->dev, "20bit\n");  in sta350_hw_params()
747 		switch (sta350->format) {  in sta350_hw_params()
761 		dev_dbg(component->dev, "18bit\n");  in sta350_hw_params()
762 		switch (sta350->format) {  in sta350_hw_params()
776 		dev_dbg(component->dev, "16bit\n");  in sta350_hw_params()
777 		switch (sta350->format) {  in sta350_hw_params()
791 		return -EINVAL;  in sta350_hw_params()
794 	ret = regmap_update_bits(sta350->regmap, STA350_CONFA,  in sta350_hw_params()
800 	ret = regmap_update_bits(sta350->regmap, STA350_CONFB,  in sta350_hw_params()
811 	if (sta350->gpiod_power_down)  in sta350_startup_sequence()
812 		gpiod_set_value(sta350->gpiod_power_down, 1);  in sta350_startup_sequence()
814 	if (sta350->gpiod_nreset) {  in sta350_startup_sequence()
815 		gpiod_set_value(sta350->gpiod_nreset, 0);  in sta350_startup_sequence()
817 		gpiod_set_value(sta350->gpiod_nreset, 1);  in sta350_startup_sequence()
825  * sta350_set_bias_level - DAPM callback
839 	dev_dbg(component->dev, "level = %d\n", level);  in sta350_set_bias_level()
846 		regmap_update_bits(sta350->regmap, STA350_CONFF,  in sta350_set_bias_level()
854 				ARRAY_SIZE(sta350->supplies),  in sta350_set_bias_level()
855 				sta350->supplies);  in sta350_set_bias_level()
857 				dev_err(component->dev,  in sta350_set_bias_level()
867 		regmap_update_bits(sta350->regmap, STA350_CONFF,  in sta350_set_bias_level()
875 		regmap_update_bits(sta350->regmap, STA350_CONFF,  in sta350_set_bias_level()
879 		if (sta350->gpiod_power_down)  in sta350_set_bias_level()
880 			gpiod_set_value(sta350->gpiod_power_down, 0);  in sta350_set_bias_level()
882 		if (sta350->gpiod_nreset)  in sta350_set_bias_level()
883 			gpiod_set_value(sta350->gpiod_nreset, 0);  in sta350_set_bias_level()
885 		regulator_bulk_disable(ARRAY_SIZE(sta350->supplies),  in sta350_set_bias_level()
886 				       sta350->supplies);  in sta350_set_bias_level()
899 	.name = "sta350-hifi",
913 	struct sta350_platform_data *pdata = sta350->pdata;  in sta350_probe()
916 	ret = regulator_bulk_enable(ARRAY_SIZE(sta350->supplies),  in sta350_probe()
917 				    sta350->supplies);  in sta350_probe()
919 		dev_err(component->dev, "Failed to enable supplies: %d\n", ret);  in sta350_probe()
925 		dev_err(component->dev, "Failed to startup device\n");  in sta350_probe()
930 	if (!pdata->thermal_warning_recovery)  in sta350_probe()
932 	if (!pdata->thermal_warning_adjustment)  in sta350_probe()
934 	if (!pdata->fault_detect_recovery)  in sta350_probe()
936 	regmap_update_bits(sta350->regmap, STA350_CONFA,  in sta350_probe()
942 	regmap_update_bits(sta350->regmap, STA350_CONFC,  in sta350_probe()
944 			   pdata->ffx_power_output_mode  in sta350_probe()
946 	regmap_update_bits(sta350->regmap, STA350_CONFC,  in sta350_probe()
948 			   pdata->drop_compensation_ns  in sta350_probe()
950 	regmap_update_bits(sta350->regmap,  in sta350_probe()
953 			   pdata->oc_warning_adjustment ?  in sta350_probe()
957 	regmap_update_bits(sta350->regmap, STA350_CONFE,  in sta350_probe()
959 			   pdata->max_power_use_mpcc ?  in sta350_probe()
961 	regmap_update_bits(sta350->regmap, STA350_CONFE,  in sta350_probe()
963 			   pdata->max_power_correction ?  in sta350_probe()
965 	regmap_update_bits(sta350->regmap, STA350_CONFE,  in sta350_probe()
967 			   pdata->am_reduction_mode ?  in sta350_probe()
969 	regmap_update_bits(sta350->regmap, STA350_CONFE,  in sta350_probe()
971 			   pdata->odd_pwm_speed_mode ?  in sta350_probe()
973 	regmap_update_bits(sta350->regmap, STA350_CONFE,  in sta350_probe()
975 			   pdata->distortion_compensation ?  in sta350_probe()
978 	regmap_update_bits(sta350->regmap, STA350_CONFF,  in sta350_probe()
980 			   pdata->invalid_input_detect_mute ?  in sta350_probe()
982 	regmap_update_bits(sta350->regmap, STA350_CONFF,  in sta350_probe()
984 			   pdata->output_conf  in sta350_probe()
988 	regmap_update_bits(sta350->regmap, STA350_C1CFG,  in sta350_probe()
990 			   pdata->ch1_output_mapping  in sta350_probe()
992 	regmap_update_bits(sta350->regmap, STA350_C2CFG,  in sta350_probe()
994 			   pdata->ch2_output_mapping  in sta350_probe()
996 	regmap_update_bits(sta350->regmap, STA350_C3CFG,  in sta350_probe()
998 			   pdata->ch3_output_mapping  in sta350_probe()
1002 	regmap_update_bits(sta350->regmap, STA350_MISC1,  in sta350_probe()
1004 			   pdata->activate_mute_output ?  in sta350_probe()
1006 	regmap_update_bits(sta350->regmap, STA350_MISC1,  in sta350_probe()
1008 			   pdata->bridge_immediate_off ?  in sta350_probe()
1010 	regmap_update_bits(sta350->regmap, STA350_MISC1,  in sta350_probe()
1012 			   pdata->noise_shape_dc_cut ?  in sta350_probe()
1014 	regmap_update_bits(sta350->regmap, STA350_MISC1,  in sta350_probe()
1016 			   pdata->powerdown_master_vol ?  in sta350_probe()
1019 	regmap_update_bits(sta350->regmap, STA350_MISC2,  in sta350_probe()
1021 			   pdata->powerdown_delay_divider  in sta350_probe()
1026 		sta350->coef_shadow[i] = 0x400000;  in sta350_probe()
1028 		sta350->coef_shadow[i] = 0x7fffff;  in sta350_probe()
1029 	sta350->coef_shadow[55] = 0x5a9df7;  in sta350_probe()
1030 	sta350->coef_shadow[56] = 0x7fffff;  in sta350_probe()
1031 	sta350->coef_shadow[59] = 0x7fffff;  in sta350_probe()
1032 	sta350->coef_shadow[60] = 0x400000;  in sta350_probe()
1033 	sta350->coef_shadow[61] = 0x400000;  in sta350_probe()
1037 	regulator_bulk_disable(ARRAY_SIZE(sta350->supplies), sta350->supplies);  in sta350_probe()
1046 	regulator_bulk_disable(ARRAY_SIZE(sta350->supplies), sta350->supplies);  in sta350_remove()
1086 	[STA350_FFX_PM_DROP_COMP]		= "drop-compensation",
1087 	[STA350_FFX_PM_TAPERED_COMP]		= "tapered-compensation",
1088 	[STA350_FFX_PM_FULL_POWER]		= "full-power-mode",
1089 	[STA350_FFX_PM_VARIABLE_DROP_COMP]	= "variable-drop-compensation",
1094 	struct device_node *np = dev->of_node;  in sta350_probe_dt()
1102 		return -ENOMEM;  in sta350_probe_dt()
1104 	of_property_read_u8(np, "st,output-conf",  in sta350_probe_dt()
1105 			    &pdata->output_conf);  in sta350_probe_dt()
1106 	of_property_read_u8(np, "st,ch1-output-mapping",  in sta350_probe_dt()
1107 			    &pdata->ch1_output_mapping);  in sta350_probe_dt()
1108 	of_property_read_u8(np, "st,ch2-output-mapping",  in sta350_probe_dt()
1109 			    &pdata->ch2_output_mapping);  in sta350_probe_dt()
1110 	of_property_read_u8(np, "st,ch3-output-mapping",  in sta350_probe_dt()
1111 			    &pdata->ch3_output_mapping);  in sta350_probe_dt()
1113 	if (of_get_property(np, "st,thermal-warning-recovery", NULL))  in sta350_probe_dt()
1114 		pdata->thermal_warning_recovery = 1;  in sta350_probe_dt()
1115 	if (of_get_property(np, "st,thermal-warning-adjustment", NULL))  in sta350_probe_dt()
1116 		pdata->thermal_warning_adjustment = 1;  in sta350_probe_dt()
1117 	if (of_get_property(np, "st,fault-detect-recovery", NULL))  in sta350_probe_dt()
1118 		pdata->fault_detect_recovery = 1;  in sta350_probe_dt()
1120 	pdata->ffx_power_output_mode = STA350_FFX_PM_VARIABLE_DROP_COMP;  in sta350_probe_dt()
1121 	if (!of_property_read_string(np, "st,ffx-power-output-mode",  in sta350_probe_dt()
1123 		int i, mode = -EINVAL;  in sta350_probe_dt()
1133 			pdata->ffx_power_output_mode = mode;  in sta350_probe_dt()
1137 	of_property_read_u16(np, "st,drop-compensation-ns", &tmp);  in sta350_probe_dt()
1138 	pdata->drop_compensation_ns = clamp_t(u16, tmp, 0, 300) / 20;  in sta350_probe_dt()
1140 	if (of_get_property(np, "st,overcurrent-warning-adjustment", NULL))  in sta350_probe_dt()
1141 		pdata->oc_warning_adjustment = 1;  in sta350_probe_dt()
1144 	if (of_get_property(np, "st,max-power-use-mpcc", NULL))  in sta350_probe_dt()
1145 		pdata->max_power_use_mpcc = 1;  in sta350_probe_dt()
1147 	if (of_get_property(np, "st,max-power-correction", NULL))  in sta350_probe_dt()
1148 		pdata->max_power_correction = 1;  in sta350_probe_dt()
1150 	if (of_get_property(np, "st,am-reduction-mode", NULL))  in sta350_probe_dt()
1151 		pdata->am_reduction_mode = 1;  in sta350_probe_dt()
1153 	if (of_get_property(np, "st,odd-pwm-speed-mode", NULL))  in sta350_probe_dt()
1154 		pdata->odd_pwm_speed_mode = 1;  in sta350_probe_dt()
1156 	if (of_get_property(np, "st,distortion-compensation", NULL))  in sta350_probe_dt()
1157 		pdata->distortion_compensation = 1;  in sta350_probe_dt()
1160 	if (of_get_property(np, "st,invalid-input-detect-mute", NULL))  in sta350_probe_dt()
1161 		pdata->invalid_input_detect_mute = 1;  in sta350_probe_dt()
1164 	if (of_get_property(np, "st,activate-mute-output", NULL))  in sta350_probe_dt()
1165 		pdata->activate_mute_output = 1;  in sta350_probe_dt()
1167 	if (of_get_property(np, "st,bridge-immediate-off", NULL))  in sta350_probe_dt()
1168 		pdata->bridge_immediate_off = 1;  in sta350_probe_dt()
1170 	if (of_get_property(np, "st,noise-shape-dc-cut", NULL))  in sta350_probe_dt()
1171 		pdata->noise_shape_dc_cut = 1;  in sta350_probe_dt()
1173 	if (of_get_property(np, "st,powerdown-master-volume", NULL))  in sta350_probe_dt()
1174 		pdata->powerdown_master_vol = 1;  in sta350_probe_dt()
1176 	if (!of_property_read_u8(np, "st,powerdown-delay-divider", &tmp8)) {  in sta350_probe_dt()
1178 			pdata->powerdown_delay_divider = ilog2(tmp8);  in sta350_probe_dt()
1184 	sta350->pdata = pdata;  in sta350_probe_dt()
1193 	struct device *dev = &i2c->dev;  in sta350_i2c_probe()
1199 		return -ENOMEM;  in sta350_i2c_probe()
1201 	mutex_init(&sta350->coeff_lock);  in sta350_i2c_probe()
1202 	sta350->pdata = dev_get_platdata(dev);  in sta350_i2c_probe()
1205 	if (dev->of_node) {  in sta350_i2c_probe()
1212 	/* GPIOs */  in sta350_i2c_probe()
1213 	sta350->gpiod_nreset = devm_gpiod_get_optional(dev, "reset",  in sta350_i2c_probe()
1215 	if (IS_ERR(sta350->gpiod_nreset))  in sta350_i2c_probe()
1216 		return PTR_ERR(sta350->gpiod_nreset);  in sta350_i2c_probe()
1218 	sta350->gpiod_power_down = devm_gpiod_get_optional(dev, "power-down",  in sta350_i2c_probe()
1220 	if (IS_ERR(sta350->gpiod_power_down))  in sta350_i2c_probe()
1221 		return PTR_ERR(sta350->gpiod_power_down);  in sta350_i2c_probe()
1224 	for (i = 0; i < ARRAY_SIZE(sta350->supplies); i++)  in sta350_i2c_probe()
1225 		sta350->supplies[i].supply = sta350_supply_names[i];  in sta350_i2c_probe()
1227 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(sta350->supplies),  in sta350_i2c_probe()
1228 				      sta350->supplies);  in sta350_i2c_probe()
1234 	sta350->regmap = devm_regmap_init_i2c(i2c, &sta350_regmap);  in sta350_i2c_probe()
1235 	if (IS_ERR(sta350->regmap)) {  in sta350_i2c_probe()
1236 		ret = PTR_ERR(sta350->regmap);  in sta350_i2c_probe()