diff --git a/drivers/iio/adc/ad7380.c b/drivers/iio/adc/ad7380.c
index bfd908deefc0..ca411371816f 100644
--- a/drivers/iio/adc/ad7380.c
+++ b/drivers/iio/adc/ad7380.c
@@ -77,8 +77,7 @@
 #define AD7380_CONFIG1_REFSEL		BIT(1)
 #define AD7380_CONFIG1_PMODE		BIT(0)
 
-#define AD7380_CONFIG2_SDO2		GENMASK(9, 8)
-#define AD7380_CONFIG2_SDO		BIT(8)
+#define AD7380_CONFIG2_SDO		GENMASK(9, 8)
 #define AD7380_CONFIG2_RESET		GENMASK(7, 0)
 
 #define AD7380_CONFIG2_RESET_SOFT	0x3C
@@ -92,11 +91,6 @@
 #define T_CONVERT_X_NS 500		/* xth conversion start time (oversampling) */
 #define T_POWERUP_US 5000		/* Power up */
 
-/*
- * AD738x support several SDO lines to increase throughput, but driver currently
- * supports only 1 SDO line (standard SPI transaction)
- */
-#define AD7380_NUM_SDO_LINES		1
 #define AD7380_DEFAULT_GAIN_MILLI	1000
 
 /*
@@ -888,6 +882,8 @@ struct ad7380_state {
 	bool resolution_boost_enabled;
 	unsigned int ch;
 	bool seq;
+	/* How many SDO lines are wired up. */
+	u8 num_sdo_lines;
 	unsigned int vref_mv;
 	unsigned int vcm_mv[MAX_NUM_CHANNELS];
 	unsigned int gain_milli[MAX_NUM_CHANNELS];
@@ -1084,7 +1080,7 @@ static int ad7380_set_ch(struct ad7380_state *st, unsigned int ch)
 	if (oversampling_ratio > 1)
 		xfer.delay.value = T_CONVERT_0_NS +
 			T_CONVERT_X_NS * (oversampling_ratio - 1) *
-			st->chip_info->num_simult_channels / AD7380_NUM_SDO_LINES;
+			st->chip_info->num_simult_channels / st->num_sdo_lines;
 
 	return spi_sync_transfer(st->spi, &xfer, 1);
 }
@@ -1113,7 +1109,7 @@ static int ad7380_update_xfers(struct ad7380_state *st,
 	if (oversampling_ratio > 1)
 		t_convert = T_CONVERT_0_NS + T_CONVERT_X_NS *
 			(oversampling_ratio - 1) *
-			st->chip_info->num_simult_channels / AD7380_NUM_SDO_LINES;
+			st->chip_info->num_simult_channels / st->num_sdo_lines;
 
 	if (st->seq) {
 		xfer[0].delay.value = xfer[1].delay.value = t_convert;
@@ -1198,6 +1194,8 @@ static int ad7380_init_offload_msg(struct ad7380_state *st,
 	xfer->bits_per_word = scan_type->realbits;
 	xfer->offload_flags = SPI_OFFLOAD_XFER_RX_STREAM;
 	xfer->len = AD7380_SPI_BYTES(scan_type) * st->chip_info->num_simult_channels;
+	if (st->num_sdo_lines > 1)
+		xfer->multi_lane_mode = SPI_MULTI_LANE_MODE_STRIPE;
 
 	spi_message_init_with_transfers(&st->offload_msg, xfer, 1);
 	st->offload_msg.offload = st->offload;
@@ -1793,6 +1791,7 @@ static const struct iio_info ad7380_info = {
 
 static int ad7380_init(struct ad7380_state *st, bool external_ref_en)
 {
+	u32 sdo;
 	int ret;
 
 	/* perform hard reset */
@@ -1815,11 +1814,24 @@ static int ad7380_init(struct ad7380_state *st, bool external_ref_en)
 	st->ch = 0;
 	st->seq = false;
 
-	/* SPI 1-wire mode */
+	/* SDO field has an irregular mapping. */
+	switch (st->num_sdo_lines) {
+	case 1:
+		sdo = 1;
+		break;
+	case 2:
+		sdo = 0;
+		break;
+	case 4:
+		sdo = 2;
+		break;
+	default:
+		return -EINVAL;
+	}
+
 	return regmap_update_bits(st->regmap, AD7380_REG_ADDR_CONFIG2,
 				  AD7380_CONFIG2_SDO,
-				  FIELD_PREP(AD7380_CONFIG2_SDO,
-					     AD7380_NUM_SDO_LINES));
+				  FIELD_PREP(AD7380_CONFIG2_SDO, sdo));
 }
 
 static int ad7380_probe_spi_offload(struct iio_dev *indio_dev,
@@ -1842,7 +1854,7 @@ static int ad7380_probe_spi_offload(struct iio_dev *indio_dev,
 				     "failed to get offload trigger\n");
 
 	sample_rate = st->chip_info->max_conversion_rate_hz *
-		      AD7380_NUM_SDO_LINES / st->chip_info->num_simult_channels;
+		      st->num_sdo_lines / st->chip_info->num_simult_channels;
 
 	st->sample_freq_range[0] = 1; /* min */
 	st->sample_freq_range[1] = 1; /* step */
@@ -1887,6 +1899,13 @@ static int ad7380_probe(struct spi_device *spi)
 	if (!st->chip_info)
 		return dev_err_probe(dev, -EINVAL, "missing match data\n");
 
+	st->num_sdo_lines = spi->num_rx_lanes;
+
+	if (st->num_sdo_lines < 1 || st->num_sdo_lines > st->chip_info->num_simult_channels)
+		return dev_err_probe(dev, -EINVAL,
+				     "invalid number of SDO lines (%d)\n",
+				     st->num_sdo_lines);
+
 	ret = devm_regulator_bulk_get_enable(dev, st->chip_info->num_supplies,
 					     st->chip_info->supplies);
 
@@ -2010,6 +2029,8 @@ static int ad7380_probe(struct spi_device *spi)
 	st->normal_xfer[0].cs_change_delay.value = st->chip_info->timing_specs->t_csh_ns;
 	st->normal_xfer[0].cs_change_delay.unit = SPI_DELAY_UNIT_NSECS;
 	st->normal_xfer[1].rx_buf = st->scan_data;
+	if (st->num_sdo_lines > 1)
+		st->normal_xfer[1].multi_lane_mode = SPI_MULTI_LANE_MODE_STRIPE;
 
 	spi_message_init_with_transfers(&st->normal_msg, st->normal_xfer,
 					ARRAY_SIZE(st->normal_xfer));
@@ -2031,6 +2052,10 @@ static int ad7380_probe(struct spi_device *spi)
 	st->seq_xfer[2].cs_change = 1;
 	st->seq_xfer[2].cs_change_delay.value = st->chip_info->timing_specs->t_csh_ns;
 	st->seq_xfer[2].cs_change_delay.unit = SPI_DELAY_UNIT_NSECS;
+	if (st->num_sdo_lines > 1) {
+		st->seq_xfer[2].multi_lane_mode = SPI_MULTI_LANE_MODE_STRIPE;
+		st->seq_xfer[3].multi_lane_mode = SPI_MULTI_LANE_MODE_STRIPE;
+	}
 
 	spi_message_init_with_transfers(&st->seq_msg, st->seq_xfer,
 					ARRAY_SIZE(st->seq_xfer));