1 // SPDX-License-Identifier: GPL-2.0+
7  *  AD7172-2/AD7172-4/AD7173-8/AD7175-2
8  *  AD7175-8/AD7176-2/AD7177-2
18 #include <linux/clk-provider.h>
149 					       (pin2) < st->info->num_voltage_in && \
150 					       (pin2) >= st->info->num_voltage_in_div)
156 #define AD7173_MODE_CAL_INT_ZERO		0x4 /* Internal Zero-Scale Calibration */
157 #define AD7173_MODE_CAL_INT_FULL		0x5 /* Internal Full-Scale Calibration */
158 #define AD7173_MODE_CAL_SYS_ZERO		0x6 /* System Zero-Scale Calibration */
159 #define AD7173_MODE_CAL_SYS_FULL		0x7 /* System Full-Scale Calibration */
240 	24845000, 24845000, 20725000, 20725000,	/*  0-3  */
241 	15564000, 13841000, 10390000, 10390000,	/*  4-7  */
242 	4994000,  2499000,  1000000,  500000,	/*  8-11 */
243 	395500,   200000,   100000,   59890,	/* 12-15 */
244 	49920,    20000,    16660,    10000,	/* 16-19 */
245 	5000,	  2500,     2500,		/* 20-22 */
249 	12422360, 12422360, 12422360, 12422360,	/*  0-3  */
250 	10362690, 10362690, 7782100,  6290530,	/*  4-7  */
251 	5194800,  2496900,  1007600,  499900,	/*  8-11 */
252 	390600,	  200300,   100000,   59750,	/* 12-15 */
253 	49840,	  20000,    16650,    10000,	/* 16-19 */
254 	5000,	  2500,	    1250,		/* 20-22 */
258 	6211000, 6211000, 6211000, 6211000, 6211000, 6211000, 5181000, 4444000,	/*  0-7  */
259 	3115000, 2597000, 1007000, 503800,  381000,  200300,  100500,  59520,	/*  8-15 */
260 	49680,	 20010,	  16333,   10000,   5000,    2500,    1250,		/* 16-22 */
264 	50000000, 41667000, 31250000, 27778000,	/*  0-3  */
265 	20833000, 17857000, 12500000, 10000000,	/*  4-7  */
266 	5000000,  2500000,  1000000,  500000,	/*  8-11 */
267 	397500,   200000,   100000,   59920,	/* 12-15 */
268 	49960,    20000,    16666,    10000,	/* 16-19 */
283 	[AD7173_SETUP_REF_SEL_INT_REF]    = "refout-avss",
288 	"ext-clk", "xtal"
326 	st->channels[chan->channel].syscalib_mode = mode;  in ad7173_set_syscalib_mode()
336 	return st->channels[chan->channel].syscalib_mode;  in ad7173_get_syscalib_mode()
353 		return -EBUSY;  in ad7173_write_syscalib()
355 	mode = st->channels[chan->channel].syscalib_mode;  in ad7173_write_syscalib()
358 			ret = ad_sd_calibrate(&st->sd, AD7173_MODE_CAL_SYS_ZERO,  in ad7173_write_syscalib()
359 					      chan->address);  in ad7173_write_syscalib()
361 			ret = ad_sd_calibrate(&st->sd, AD7173_MODE_CAL_SYS_FULL,  in ad7173_write_syscalib()
362 					      chan->address);  in ad7173_write_syscalib()
395 	for (i = 0; i < st->num_channels; i++) {  in ad7173_calibrate_all()
396 		if (indio_dev->channels[i].type != IIO_VOLTAGE)  in ad7173_calibrate_all()
399 		ret = ad_sd_calibrate(&st->sd, AD7173_MODE_CAL_INT_ZERO, st->channels[i].ain);  in ad7173_calibrate_all()
403 		if (st->info->has_internal_fs_calibration) {  in ad7173_calibrate_all()
404 			ret = ad_sd_calibrate(&st->sd, AD7173_MODE_CAL_INT_FULL,  in ad7173_calibrate_all()
405 					      st->channels[i].ain);  in ad7173_calibrate_all()
416  * The array is indexed by ain and gives the associated channel pair
418  * the channel pair [0] is for non differential and pair [1]
419  * is for differential inputs
422 /*	AIN      Single      Differential */
442 	struct ad7173_channel *adchan = &st->channels[chan->address];  in ad4111_openwire_event()
443 	struct ad7173_channel_config *cfg = &adchan->cfg;  in ad4111_openwire_event()
446 	ret = regmap_set_bits(st->reg_gpiocon_regmap, AD7173_REG_GPIO,  in ad4111_openwire_event()
451 	adchan->cfg.openwire_comp_chan =  in ad4111_openwire_event()
452 		openwire_ain_to_channel_pair[chan->channel][chan->differential][0];  in ad4111_openwire_event()
456 		dev_err(&indio_dev->dev,  in ad4111_openwire_event()
461 	adchan->cfg.openwire_comp_chan =  in ad4111_openwire_event()
462 		openwire_ain_to_channel_pair[chan->channel][chan->differential][1];  in ad4111_openwire_event()
466 		dev_err(&indio_dev->dev,  in ad4111_openwire_event()
471 	if (abs(val1 - val2) > cfg->openwire_thrsh_raw)  in ad4111_openwire_event()
473 			       IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, chan->address,  in ad4111_openwire_event()
478 	adchan->cfg.openwire_comp_chan = -1;  in ad4111_openwire_event()
479 	regmap_clear_bits(st->reg_gpiocon_regmap, AD7173_REG_GPIO,  in ad4111_openwire_event()
508 	regmap_update_bits(st->reg_gpiocon_regmap, AD7173_REG_GPIO, mask, ~mask);  in ad7173_gpio_disable()
514 	struct device *dev = &st->sd.spi->dev;  in ad7173_gpio_init()
518 	st->reg_gpiocon_regmap = devm_regmap_init_spi(st->sd.spi, &ad7173_regmap_config);  in ad7173_gpio_init()
519 	ret = PTR_ERR_OR_ZERO(st->reg_gpiocon_regmap);  in ad7173_gpio_init()
524 	regmap_update_bits(st->reg_gpiocon_regmap, AD7173_REG_GPIO, mask, mask);  in ad7173_gpio_init()
531 	gpio_regmap.regmap = st->reg_gpiocon_regmap;  in ad7173_gpio_init()
532 	gpio_regmap.ngpio = st->info->num_gpios;  in ad7173_gpio_init()
534 	if (st->info->higher_gpio_bits)  in ad7173_gpio_init()
539 	st->gpio_regmap = devm_gpio_regmap_register(dev, &gpio_regmap);  in ad7173_gpio_init()
540 	ret = PTR_ERR_OR_ZERO(st->gpio_regmap);  in ad7173_gpio_init()
542 		return dev_err_probe(dev, ret, "Unable to init gpio-regmap\n");  in ad7173_gpio_init()
567 	ida_destroy(&st->cfg_slots_status);  in ad7173_ida_destroy()
572 	memset64(st->config_cnts, 0, st->info->num_configs);  in ad7173_reset_usage_cnts()
573 	st->config_usage_counter = 0;  in ad7173_reset_usage_cnts()
594 	for (i = 0; i < st->num_channels; i++) {  in ad7173_find_live_config()
595 		cfg_aux = &st->channels[i].cfg;  in ad7173_find_live_config()
597 		if (cfg_aux->live &&  in ad7173_find_live_config()
598 		    cfg->bipolar == cfg_aux->bipolar &&  in ad7173_find_live_config()
599 		    cfg->input_buf == cfg_aux->input_buf &&  in ad7173_find_live_config()
600 		    cfg->odr == cfg_aux->odr &&  in ad7173_find_live_config()
601 		    cfg->ref_sel == cfg_aux->ref_sel)  in ad7173_find_live_config()
612 	for (i = 1; i < st->info->num_configs; i++)  in ad7173_free_config_slot_lru()
613 		if (st->config_cnts[i] < st->config_cnts[lru_position])  in ad7173_free_config_slot_lru()
616 	for (i = 0; i < st->num_channels; i++)  in ad7173_free_config_slot_lru()
617 		if (st->channels[i].cfg.cfg_slot == lru_position)  in ad7173_free_config_slot_lru()
618 			st->channels[i].cfg.live = false;  in ad7173_free_config_slot_lru()
620 	ida_free(&st->cfg_slots_status, lru_position);  in ad7173_free_config_slot_lru()
621 	return ida_alloc(&st->cfg_slots_status, GFP_KERNEL);  in ad7173_free_config_slot_lru()
631 	free_cfg_slot = ida_alloc_range(&st->cfg_slots_status, 0,  in ad7173_load_config()
632 					st->info->num_configs - 1, GFP_KERNEL);  in ad7173_load_config()
636 	cfg->cfg_slot = free_cfg_slot;  in ad7173_load_config()
637 	config = FIELD_PREP(AD7173_SETUP_REF_SEL_MASK, cfg->ref_sel);  in ad7173_load_config()
639 	if (cfg->bipolar)  in ad7173_load_config()
642 	if (cfg->input_buf)  in ad7173_load_config()
645 	ret = ad_sd_write_reg(&st->sd, AD7173_REG_SETUP(free_cfg_slot), 2, config);  in ad7173_load_config()
649 	return ad_sd_write_reg(&st->sd, AD7173_REG_FILTER(free_cfg_slot), 2,  in ad7173_load_config()
650 			       AD7173_FILTER_ODR0_MASK & cfg->odr);  in ad7173_load_config()
655 	struct ad7173_channel_config *cfg = &st->channels[addr].cfg;  in ad7173_config_channel()
659 	if (!cfg->live) {  in ad7173_config_channel()
662 			cfg->cfg_slot = live_cfg->cfg_slot;  in ad7173_config_channel()
667 			cfg->live = true;  in ad7173_config_channel()
671 	if (st->config_usage_counter == U64_MAX)  in ad7173_config_channel()
674 	st->config_usage_counter++;  in ad7173_config_channel()
675 	st->config_cnts[cfg->cfg_slot] = st->config_usage_counter;  in ad7173_config_channel()
691 	      FIELD_PREP(AD7173_CH_SETUP_SEL_MASK, st->channels[channel].cfg.cfg_slot) |  in ad7173_set_channel()
692 	      st->channels[channel].ain;  in ad7173_set_channel()
694 	if (st->channels[channel].cfg.openwire_comp_chan >= 0)  in ad7173_set_channel()
695 		channel = st->channels[channel].cfg.openwire_comp_chan;  in ad7173_set_channel()
697 	return ad_sd_write_reg(&st->sd, AD7173_REG_CH(channel), 2, val);  in ad7173_set_channel()
705 	st->adc_mode &= ~AD7173_ADC_MODE_MODE_MASK;  in ad7173_set_mode()
706 	st->adc_mode |= FIELD_PREP(AD7173_ADC_MODE_MODE_MASK, mode);  in ad7173_set_mode()
708 	return ad_sd_write_reg(&st->sd, AD7173_REG_ADC_MODE, 2, st->adc_mode);  in ad7173_set_mode()
714 	unsigned int interface_mode = st->interface_mode;  in ad7173_append_status()
719 	ret = ad_sd_write_reg(&st->sd, AD7173_REG_INTERFACE_MODE, 2, interface_mode);  in ad7173_append_status()
723 	st->interface_mode = interface_mode;  in ad7173_append_status()
734 	for (i = 0; i < st->num_channels; i++) {  in ad7173_disable_all()
747 	if (st->channels[chan].cfg.openwire_comp_chan >= 0)  in ad7173_disable_one()
748 		chan = st->channels[chan].cfg.openwire_comp_chan;  in ad7173_disable_one()
905 	.name = "ad7172-2",
922 	.name = "ad7172-4",
938 	.name = "ad7173-8",
955 	.name = "ad7175-2",
972 	.name = "ad7175-8",
990 	.name = "ad7176-2",
1004 	.name = "ad7177-2",
1024 	struct device *dev = &st->sd.spi->dev;  in ad7173_setup()
1031 	ret = spi_write_then_read(st->sd.spi, buf, sizeof(buf), NULL, 0);  in ad7173_setup()
1038 	ret = ad_sd_read_reg(&st->sd, AD7173_REG_ID, 2, &id);  in ad7173_setup()
1043 	if (id != st->info->id)  in ad7173_setup()
1045 			 id, st->info->id);  in ad7173_setup()
1047 	st->adc_mode |= AD7173_ADC_MODE_SING_CYC;  in ad7173_setup()
1048 	st->interface_mode = 0x0;  in ad7173_setup()
1050 	st->config_usage_counter = 0;  in ad7173_setup()
1051 	st->config_cnts = devm_kcalloc(dev, st->info->num_configs,  in ad7173_setup()
1052 				       sizeof(*st->config_cnts), GFP_KERNEL);  in ad7173_setup()
1053 	if (!st->config_cnts)  in ad7173_setup()
1054 		return -ENOMEM;  in ad7173_setup()
1061 	return ad7173_disable_all(&st->sd);  in ad7173_setup()
1071 		vref = regulator_get_voltage(st->regulators[0].consumer);  in ad7173_get_ref_voltage_milli()
1075 		vref = regulator_get_voltage(st->regulators[1].consumer);  in ad7173_get_ref_voltage_milli()
1083 		vref = regulator_get_voltage(st->regulators[2].consumer);  in ad7173_get_ref_voltage_milli()
1087 		return -EINVAL;  in ad7173_get_ref_voltage_milli()
1101 	struct ad7173_channel *ch = &st->channels[chan->address];  in ad7173_read_raw()
1112 		if (ch->openwire_det_en) {  in ad7173_read_raw()
1121 		switch (chan->type) {  in ad7173_read_raw()
1126 			*val2 = chan->scan_type.realbits;  in ad7173_read_raw()
1129 			*val = ad7173_get_ref_voltage_milli(st, ch->cfg.ref_sel);  in ad7173_read_raw()
1130 			*val2 = chan->scan_type.realbits - !!(ch->cfg.bipolar);  in ad7173_read_raw()
1132 			if (chan->channel < st->info->num_voltage_in_div)  in ad7173_read_raw()
1136 			*val = ad7173_get_ref_voltage_milli(st, ch->cfg.ref_sel);  in ad7173_read_raw()
1138 			*val2 = chan->scan_type.realbits - ch->cfg.bipolar;  in ad7173_read_raw()
1141 			return -EINVAL;  in ad7173_read_raw()
1145 		switch (chan->type) {  in ad7173_read_raw()
1147 			/* 0 Kelvin -> raw sample */  in ad7173_read_raw()
1148 			temp   = -ABSOLUTE_ZERO_MILLICELSIUS;  in ad7173_read_raw()
1150 			temp <<= chan->scan_type.realbits;  in ad7173_read_raw()
1154 			*val   = -temp;  in ad7173_read_raw()
1158 			*val = -BIT(chan->scan_type.realbits - 1);  in ad7173_read_raw()
1161 			return -EINVAL;  in ad7173_read_raw()
1164 		reg = st->channels[chan->address].cfg.odr;  in ad7173_read_raw()
1166 		*val = st->info->sinc5_data_rates[reg] / MILLI;  in ad7173_read_raw()
1167 		*val2 = (st->info->sinc5_data_rates[reg] % MILLI) * (MICRO / MILLI);  in ad7173_read_raw()
1171 		return -EINVAL;  in ad7173_read_raw()
1185 		return -EBUSY;  in ad7173_write_raw()
1205 		for (i = st->info->odr_start_value; i < st->info->num_sinc5_data_rates - 1; i++)  in ad7173_write_raw()
1206 			if (freq >= st->info->sinc5_data_rates[i])  in ad7173_write_raw()
1209 		cfg = &st->channels[chan->address].cfg;  in ad7173_write_raw()
1210 		cfg->odr = i;  in ad7173_write_raw()
1211 		cfg->live = false;  in ad7173_write_raw()
1215 		ret = -EINVAL;  in ad7173_write_raw()
1229 	for (i = 0; i < indio_dev->num_channels; i++) {  in ad7173_update_scan_mode()
1231 			ret = ad7173_set_channel(&st->sd, i);  in ad7173_update_scan_mode()
1233 			ret = ad_sd_write_reg(&st->sd, AD7173_REG_CH(i), 2, 0);  in ad7173_update_scan_mode()
1256 		return ad_sd_read_reg(&st->sd, reg, reg_size, readval);  in ad7173_debug_reg_access()
1258 	return ad_sd_write_reg(&st->sd, reg, reg_size, writeval);  in ad7173_debug_reg_access()
1268 	struct ad7173_channel *adchan = &st->channels[chan->address];  in ad7173_write_event_config()
1272 		adchan->openwire_det_en = state;  in ad7173_write_event_config()
1275 		return -EINVAL;  in ad7173_write_event_config()
1285 	struct ad7173_channel *adchan = &st->channels[chan->address];  in ad7173_read_event_config()
1289 		return adchan->openwire_det_en;  in ad7173_read_event_config()
1291 		return -EINVAL;  in ad7173_read_event_config()
1354 	regulator_bulk_disable(ARRAY_SIZE(st->regulators), st->regulators);  in ad7173_disable_regulators()
1367 	st->adc_mode &= ~AD7173_ADC_MODE_CLOCKSEL_MASK;  in ad7173_sel_clk()
1368 	st->adc_mode |= FIELD_PREP(AD7173_ADC_MODE_CLOCKSEL_MASK, clk_sel);  in ad7173_sel_clk()
1369 	ret = ad_sd_write_reg(&st->sd, AD7173_REG_ADC_MODE, 0x2, st->adc_mode);  in ad7173_sel_clk()
1379 	return st->info->clock / HZ_PER_KHZ;  in ad7173_clk_recalc_rate()
1387 	clk_sel = FIELD_GET(AD7173_ADC_MODE_CLOCKSEL_MASK, st->adc_mode);  in ad7173_clk_output_is_enabled()
1415 	struct device *dev = indio_dev->dev.parent;  in ad7173_register_clk_provider()
1426 	st->int_clk_hw.init = &init;  in ad7173_register_clk_provider()
1427 	ret = devm_clk_hw_register(dev, &st->int_clk_hw);  in ad7173_register_clk_provider()
1432 					   &st->int_clk_hw);  in ad7173_register_clk_provider()
1438 	struct device *dev = &st->sd.spi->dev;  in ad4111_validate_current_ain()
1440 	if (!st->info->has_current_inputs)  in ad4111_validate_current_ain()
1441 		return dev_err_probe(dev, -EINVAL,  in ad4111_validate_current_ain()
1443 			st->info->name);  in ad4111_validate_current_ain()
1446 		return dev_err_probe(dev, -EINVAL,  in ad4111_validate_current_ain()
1447 			"For current channels single-channel must be <[0-3]>\n");  in ad4111_validate_current_ain()
1455 	struct device *dev = &st->sd.spi->dev;  in ad7173_validate_voltage_ain_inputs()
1458 	/* (AVDD1-AVSS)/5 power supply monitoring */  in ad7173_validate_voltage_ain_inputs()
1460 	    st->info->has_pow_supply_monitoring)  in ad7173_validate_voltage_ain_inputs()
1464 			 (ain0 == AD4111_VINCOM_INPUT && st->info->has_vincom_input);  in ad7173_validate_voltage_ain_inputs()
1466 			 (ain1 == AD4111_VINCOM_INPUT && st->info->has_vincom_input);  in ad7173_validate_voltage_ain_inputs()
1468 	if ((ain0 >= st->info->num_voltage_in && !special_input0) ||  in ad7173_validate_voltage_ain_inputs()
1469 	    (ain1 >= st->info->num_voltage_in && !special_input1)) {  in ad7173_validate_voltage_ain_inputs()
1471 			return dev_err_probe(dev, -EINVAL,  in ad7173_validate_voltage_ain_inputs()
1472 				"VINCOM not supported for %s\n", st->info->name);  in ad7173_validate_voltage_ain_inputs()
1474 		return dev_err_probe(dev, -EINVAL,  in ad7173_validate_voltage_ain_inputs()
1475 				     "Input pin number out of range for pair (%d %d).\n",  in ad7173_validate_voltage_ain_inputs()
1481 		return dev_err_probe(dev, -EINVAL,  in ad7173_validate_voltage_ain_inputs()
1485 	    ((ain0 >= st->info->num_voltage_in_div) !=  in ad7173_validate_voltage_ain_inputs()
1486 	     (ain1 >= st->info->num_voltage_in_div)))  in ad7173_validate_voltage_ain_inputs()
1487 		return dev_err_probe(dev, -EINVAL,  in ad7173_validate_voltage_ain_inputs()
1496 	struct device *dev = &st->sd.spi->dev;  in ad7173_validate_reference()
1499 	if (ref_sel == AD7173_SETUP_REF_SEL_INT_REF && !st->info->has_int_ref)  in ad7173_validate_reference()
1500 		return dev_err_probe(dev, -EINVAL,  in ad7173_validate_reference()
1503 	if (ref_sel == AD7173_SETUP_REF_SEL_EXT_REF2 && !st->info->has_ref2)  in ad7173_validate_reference()
1504 		return dev_err_probe(dev, -EINVAL,  in ad7173_validate_reference()
1516 					       bool differential,  in ad7173_validate_openwire_ain_inputs()  argument
1521 	 * If the channel is configured as differential,  in ad7173_validate_openwire_ain_inputs()
1524 	if (differential)  in ad7173_validate_openwire_ain_inputs()
1525 		return (ain0 % 2) ? (ain0 - 1) == ain1 : (ain0 + 1) == ain1;  in ad7173_validate_openwire_ain_inputs()
1537 		BIT(chan->scan_type.realbits - !!(chan_st_priv->cfg.bipolar))  in ad7173_calc_openwire_thrsh_raw()
1539 		/ ad7173_get_ref_voltage_milli(st, chan_st_priv->cfg.ref_sel);  in ad7173_calc_openwire_thrsh_raw()
1540 	if (chan->channel < st->info->num_voltage_in_div)  in ad7173_calc_openwire_thrsh_raw()
1550 	struct device *dev = indio_dev->dev.parent;  in ad7173_fw_parse_channel_config()
1557 	if (st->info->has_temp)  in ad7173_fw_parse_channel_config()
1561 		return dev_err_probe(dev, -ENODATA, "No channels specified\n");  in ad7173_fw_parse_channel_config()
1563 	if (num_channels > st->info->num_channels)  in ad7173_fw_parse_channel_config()
1564 		return dev_err_probe(dev, -EINVAL,  in ad7173_fw_parse_channel_config()
1566 			st->info->num_channels);  in ad7173_fw_parse_channel_config()
1568 	indio_dev->num_channels = num_channels;  in ad7173_fw_parse_channel_config()
1569 	st->num_channels = num_channels;  in ad7173_fw_parse_channel_config()
1571 	chan_arr = devm_kcalloc(dev, sizeof(*indio_dev->channels),  in ad7173_fw_parse_channel_config()
1572 				st->num_channels, GFP_KERNEL);  in ad7173_fw_parse_channel_config()
1574 		return -ENOMEM;  in ad7173_fw_parse_channel_config()
1576 	chans_st_arr = devm_kcalloc(dev, st->num_channels, sizeof(*st->channels),  in ad7173_fw_parse_channel_config()
1579 		return -ENOMEM;  in ad7173_fw_parse_channel_config()
1581 	indio_dev->channels = chan_arr;  in ad7173_fw_parse_channel_config()
1582 	st->channels = chans_st_arr;  in ad7173_fw_parse_channel_config()
1584 	if (st->info->has_temp) {  in ad7173_fw_parse_channel_config()
1587 		chan_st_priv->ain =  in ad7173_fw_parse_channel_config()
1590 		chan_st_priv->cfg.bipolar = false;  in ad7173_fw_parse_channel_config()
1591 		chan_st_priv->cfg.input_buf = st->info->has_input_buf;  in ad7173_fw_parse_channel_config()
1592 		chan_st_priv->cfg.ref_sel = AD7173_SETUP_REF_SEL_INT_REF;  in ad7173_fw_parse_channel_config()
1593 		chan_st_priv->cfg.openwire_comp_chan = -1;  in ad7173_fw_parse_channel_config()
1594 		st->adc_mode |= AD7173_ADC_MODE_REF_EN;  in ad7173_fw_parse_channel_config()
1595 		if (st->info->data_reg_only_16bit)  in ad7173_fw_parse_channel_config()
1607 		ret = fwnode_property_read_u32_array(child, "diff-channels",  in ad7173_fw_parse_channel_config()
1610 			ret = fwnode_property_read_u32(child, "single-channel",  in ad7173_fw_parse_channel_config()
1614 					"Channel must define one of diff-channels or single-channel.\n");  in ad7173_fw_parse_channel_config()
1616 			is_current_chan = fwnode_property_read_bool(child, "adi,current-channel");  in ad7173_fw_parse_channel_config()
1618 			chan->differential = true;  in ad7173_fw_parse_channel_config()
1626 			if (!chan->differential) {  in ad7173_fw_parse_channel_config()
1628 					"common-mode-channel", ain + 1);  in ad7173_fw_parse_channel_config()
1631 						"common-mode-channel must be defined for single-ended channels.\n");  in ad7173_fw_parse_channel_config()
1639 							    "adi,reference-select",  in ad7173_fw_parse_channel_config()
1652 			st->adc_mode |= AD7173_ADC_MODE_REF_EN;  in ad7173_fw_parse_channel_config()
1653 		chan_st_priv->cfg.ref_sel = ref_sel;  in ad7173_fw_parse_channel_config()
1655 		chan->address = chan_index;  in ad7173_fw_parse_channel_config()
1656 		chan->scan_index = chan_index;  in ad7173_fw_parse_channel_config()
1657 		chan->channel = ain[0];  in ad7173_fw_parse_channel_config()
1658 		chan_st_priv->cfg.input_buf = st->info->has_input_buf;  in ad7173_fw_parse_channel_config()
1659 		chan_st_priv->cfg.odr = 0;  in ad7173_fw_parse_channel_config()
1660 		chan_st_priv->cfg.openwire_comp_chan = -1;  in ad7173_fw_parse_channel_config()
1662 		chan_st_priv->cfg.bipolar = fwnode_property_read_bool(child, "bipolar");  in ad7173_fw_parse_channel_config()
1663 		if (chan_st_priv->cfg.bipolar)  in ad7173_fw_parse_channel_config()
1664 			chan->info_mask_separate |= BIT(IIO_CHAN_INFO_OFFSET);  in ad7173_fw_parse_channel_config()
1667 			chan->type = IIO_CURRENT;  in ad7173_fw_parse_channel_config()
1668 			chan->differential = false;  in ad7173_fw_parse_channel_config()
1669 			chan->channel2 = 0;  in ad7173_fw_parse_channel_config()
1670 			chan_st_priv->ain = ad4111_current_channel_config[ain[0]];  in ad7173_fw_parse_channel_config()
1672 			chan_st_priv->cfg.input_buf = st->info->has_input_buf;  in ad7173_fw_parse_channel_config()
1673 			chan->channel2 = ain[1];  in ad7173_fw_parse_channel_config()
1674 			chan_st_priv->ain = AD7173_CH_ADDRESS(ain[0], ain[1]);  in ad7173_fw_parse_channel_config()
1675 			if (st->info->has_openwire_det &&  in ad7173_fw_parse_channel_config()
1676 			    ad7173_validate_openwire_ain_inputs(st, chan->differential, ain[0], ain[1])) {  in ad7173_fw_parse_channel_config()
1677 				chan->event_spec = ad4111_events;  in ad7173_fw_parse_channel_config()
1678 				chan->num_event_specs = ARRAY_SIZE(ad4111_events);  in ad7173_fw_parse_channel_config()
1679 				chan_st_priv->cfg.openwire_thrsh_raw =  in ad7173_fw_parse_channel_config()
1685 		if (st->info->data_reg_only_16bit)  in ad7173_fw_parse_channel_config()
1696 	struct device *dev = indio_dev->dev.parent;  in ad7173_fw_parse_device_config()
1699 	st->regulators[0].supply = ad7173_ref_sel_str[AD7173_SETUP_REF_SEL_EXT_REF];  in ad7173_fw_parse_device_config()
1700 	st->regulators[1].supply = ad7173_ref_sel_str[AD7173_SETUP_REF_SEL_EXT_REF2];  in ad7173_fw_parse_device_config()
1701 	st->regulators[2].supply = ad7173_ref_sel_str[AD7173_SETUP_REF_SEL_AVDD1_AVSS];  in ad7173_fw_parse_device_config()
1709 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(st->regulators),  in ad7173_fw_parse_device_config()
1710 				      st->regulators);  in ad7173_fw_parse_device_config()
1714 	ret = regulator_bulk_enable(ARRAY_SIZE(st->regulators), st->regulators);  in ad7173_fw_parse_device_config()
1723 	ret = device_property_match_property_string(dev, "clock-names",  in ad7173_fw_parse_device_config()
1727 		st->adc_mode |= FIELD_PREP(AD7173_ADC_MODE_CLOCKSEL_MASK,  in ad7173_fw_parse_device_config()
1731 		st->adc_mode |= FIELD_PREP(AD7173_ADC_MODE_CLOCKSEL_MASK,  in ad7173_fw_parse_device_config()
1733 		st->ext_clk = devm_clk_get(dev, ad7173_clk_sel[ret]);  in ad7173_fw_parse_device_config()
1734 		if (IS_ERR(st->ext_clk))  in ad7173_fw_parse_device_config()
1735 			return dev_err_probe(dev, PTR_ERR(st->ext_clk),  in ad7173_fw_parse_device_config()
1738 		ret = clk_prepare_enable(st->ext_clk);  in ad7173_fw_parse_device_config()
1744 					       st->ext_clk);  in ad7173_fw_parse_device_config()
1754 	struct device *dev = &spi->dev;  in ad7173_probe()
1761 		return -ENOMEM;  in ad7173_probe()
1764 	st->info = spi_get_device_match_data(spi);  in ad7173_probe()
1765 	if (!st->info)  in ad7173_probe()
1766 		return -ENODEV;  in ad7173_probe()
1768 	ida_init(&st->cfg_slots_status);  in ad7173_probe()
1773 	indio_dev->name = st->info->name;  in ad7173_probe()
1774 	indio_dev->modes = INDIO_DIRECT_MODE;  in ad7173_probe()
1775 	indio_dev->info = &ad7173_info;  in ad7173_probe()
1777 	spi->mode = SPI_MODE_3;  in ad7173_probe()
1780 	ret = ad_sd_init(&st->sd, indio_dev, spi, st->info->sd_info);  in ad7173_probe()
1813 	{ .compatible = "adi,ad7172-2", .data = &ad7172_2_device_info },
1814 	{ .compatible = "adi,ad7172-4", .data = &ad7172_4_device_info },
1815 	{ .compatible = "adi,ad7173-8", .data = &ad7173_8_device_info },
1816 	{ .compatible = "adi,ad7175-2", .data = &ad7175_2_device_info },
1817 	{ .compatible = "adi,ad7175-8", .data = &ad7175_8_device_info },
1818 	{ .compatible = "adi,ad7176-2", .data = &ad7176_2_device_info },
1819 	{ .compatible = "adi,ad7177-2", .data = &ad7177_2_device_info },
1831 	{ "ad7172-2", (kernel_ulong_t)&ad7172_2_device_info },
1832 	{ "ad7172-4", (kernel_ulong_t)&ad7172_4_device_info },
1833 	{ "ad7173-8", (kernel_ulong_t)&ad7173_8_device_info },
1834 	{ "ad7175-2", (kernel_ulong_t)&ad7175_2_device_info },
1835 	{ "ad7175-8", (kernel_ulong_t)&ad7175_8_device_info },
1836 	{ "ad7176-2", (kernel_ulong_t)&ad7176_2_device_info },
1837 	{ "ad7177-2", (kernel_ulong_t)&ad7177_2_device_info },
1853 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafo.de>");