diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig
index b35e0c33b5e2..2334ad249b46 100644
--- a/drivers/iio/Kconfig
+++ b/drivers/iio/Kconfig
@@ -72,6 +72,7 @@ source "drivers/iio/accel/Kconfig"
 source "drivers/iio/adc/Kconfig"
 source "drivers/iio/afe/Kconfig"
 source "drivers/iio/amplifiers/Kconfig"
+source "drivers/iio/cdc/Kconfig"
 source "drivers/iio/chemical/Kconfig"
 source "drivers/iio/common/Kconfig"
 source "drivers/iio/dac/Kconfig"
diff --git a/drivers/iio/Makefile b/drivers/iio/Makefile
index 2561325aaa74..65e39bd4f934 100644
--- a/drivers/iio/Makefile
+++ b/drivers/iio/Makefile
@@ -18,6 +18,7 @@ obj-y += adc/
 obj-y += afe/
 obj-y += amplifiers/
 obj-y += buffer/
+obj-y += cdc/
 obj-y += chemical/
 obj-y += common/
 obj-y += dac/
diff --git a/drivers/iio/cdc/Kconfig b/drivers/iio/cdc/Kconfig
new file mode 100644
index 000000000000..5e3319a3ff48
--- /dev/null
+++ b/drivers/iio/cdc/Kconfig
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# CDC drivers
+#
+menu "Capacitance to digital converters"
+
+config AD7150
+	tristate "Analog Devices ad7150/1/6 capacitive sensor driver"
+	depends on I2C
+	help
+	  Say yes here to build support for Analog Devices capacitive sensors.
+	  (ad7150, ad7151, ad7156) Provides direct access via sysfs.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ad7150.
+
+endmenu
diff --git a/drivers/iio/cdc/Makefile b/drivers/iio/cdc/Makefile
new file mode 100644
index 000000000000..ee490637b032
--- /dev/null
+++ b/drivers/iio/cdc/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for industrial I/O capacitance to digital converter (CDC) drivers
+#
+
+obj-$(CONFIG_AD7150) += ad7150.o
diff --git a/drivers/iio/cdc/ad7150.c b/drivers/iio/cdc/ad7150.c
new file mode 100644
index 000000000000..b6d2c02fa39d
--- /dev/null
+++ b/drivers/iio/cdc/ad7150.c
@@ -0,0 +1,678 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * AD7150 capacitive sensor driver supporting AD7150/1/6
+ *
+ * Copyright 2010-2011 Analog Devices Inc.
+ * Copyright 2021 Jonathan Cameron <Jonathan.Cameron@huawei.com>
+ */
+
+#include <linux/bitfield.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/i2c.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/events.h>
+
+#define AD7150_STATUS_REG		0
+#define   AD7150_STATUS_OUT1		BIT(3)
+#define   AD7150_STATUS_OUT2		BIT(5)
+#define AD7150_CH1_DATA_HIGH_REG	1
+#define AD7150_CH2_DATA_HIGH_REG	3
+#define AD7150_CH1_AVG_HIGH_REG		5
+#define AD7150_CH2_AVG_HIGH_REG		7
+#define AD7150_CH1_SENSITIVITY_REG	9
+#define AD7150_CH1_THR_HOLD_H_REG	9
+#define AD7150_CH1_TIMEOUT_REG		10
+#define   AD7150_CH_TIMEOUT_RECEDING	GENMASK(3, 0)
+#define   AD7150_CH_TIMEOUT_APPROACHING	GENMASK(7, 4)
+#define AD7150_CH1_SETUP_REG		11
+#define AD7150_CH2_SENSITIVITY_REG	12
+#define AD7150_CH2_THR_HOLD_H_REG	12
+#define AD7150_CH2_TIMEOUT_REG		13
+#define AD7150_CH2_SETUP_REG		14
+#define AD7150_CFG_REG			15
+#define   AD7150_CFG_FIX		BIT(7)
+#define   AD7150_CFG_THRESHTYPE_MSK	GENMASK(6, 5)
+#define   AD7150_CFG_TT_NEG		0x0
+#define   AD7150_CFG_TT_POS		0x1
+#define   AD7150_CFG_TT_IN_WINDOW	0x2
+#define   AD7150_CFG_TT_OUT_WINDOW	0x3
+#define AD7150_PD_TIMER_REG		16
+#define AD7150_CH1_CAPDAC_REG		17
+#define AD7150_CH2_CAPDAC_REG		18
+#define AD7150_SN3_REG			19
+#define AD7150_SN2_REG			20
+#define AD7150_SN1_REG			21
+#define AD7150_SN0_REG			22
+#define AD7150_ID_REG			23
+
+enum {
+	AD7150,
+	AD7151,
+};
+
+/**
+ * struct ad7150_chip_info - instance specific chip data
+ * @client: i2c client for this device
+ * @threshold: thresholds for simple capacitance value events
+ * @thresh_sensitivity: threshold for simple capacitance offset
+ *	from 'average' value.
+ * @thresh_timeout: a timeout, in samples from the moment an
+ *	adaptive threshold event occurs to when the average
+ *	value jumps to current value.  Note made up of two fields,
+ *      3:0 are for timeout receding - applies if below lower threshold
+ *      7:4 are for timeout approaching - applies if above upper threshold
+ * @state_lock: ensure consistent state of this structure wrt the
+ *	hardware.
+ * @interrupts: one or two interrupt numbers depending on device type.
+ * @int_enabled: is a given interrupt currently enabled.
+ * @type: threshold type
+ * @dir: threshold direction
+ */
+struct ad7150_chip_info {
+	struct i2c_client *client;
+	u16 threshold[2][2];
+	u8 thresh_sensitivity[2][2];
+	u8 thresh_timeout[2][2];
+	struct mutex state_lock;
+	int interrupts[2];
+	bool int_enabled[2];
+	enum iio_event_type type;
+	enum iio_event_direction dir;
+};
+
+static const u8 ad7150_addresses[][6] = {
+	{ AD7150_CH1_DATA_HIGH_REG, AD7150_CH1_AVG_HIGH_REG,
+	  AD7150_CH1_SETUP_REG, AD7150_CH1_THR_HOLD_H_REG,
+	  AD7150_CH1_SENSITIVITY_REG, AD7150_CH1_TIMEOUT_REG },
+	{ AD7150_CH2_DATA_HIGH_REG, AD7150_CH2_AVG_HIGH_REG,
+	  AD7150_CH2_SETUP_REG, AD7150_CH2_THR_HOLD_H_REG,
+	  AD7150_CH2_SENSITIVITY_REG, AD7150_CH2_TIMEOUT_REG },
+};
+
+static int ad7150_read_raw(struct iio_dev *indio_dev,
+			   struct iio_chan_spec const *chan,
+			   int *val,
+			   int *val2,
+			   long mask)
+{
+	struct ad7150_chip_info *chip = iio_priv(indio_dev);
+	int channel = chan->channel;
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		ret = i2c_smbus_read_word_swapped(chip->client,
+						  ad7150_addresses[channel][0]);
+		if (ret < 0)
+			return ret;
+		*val = ret >> 4;
+
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_AVERAGE_RAW:
+		ret = i2c_smbus_read_word_swapped(chip->client,
+						  ad7150_addresses[channel][1]);
+		if (ret < 0)
+			return ret;
+		*val = ret;
+
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		/*
+		 * Base units for capacitance are nano farads and the value
+		 * calculated from the datasheet formula is in picofarad
+		 * so multiply by 1000
+		 */
+		*val = 1000;
+		*val2 = 40944 >> 4; /* To match shift in _RAW */
+		return IIO_VAL_FRACTIONAL;
+	case IIO_CHAN_INFO_OFFSET:
+		*val = -(12288 >> 4); /* To match shift in _RAW */
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		/* Strangely same for both 1 and 2 chan parts */
+		*val = 100;
+		return IIO_VAL_INT;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int ad7150_read_event_config(struct iio_dev *indio_dev,
+				    const struct iio_chan_spec *chan,
+				    enum iio_event_type type,
+				    enum iio_event_direction dir)
+{
+	struct ad7150_chip_info *chip = iio_priv(indio_dev);
+	u8 threshtype;
+	bool thrfixed;
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(chip->client, AD7150_CFG_REG);
+	if (ret < 0)
+		return ret;
+
+	threshtype = FIELD_GET(AD7150_CFG_THRESHTYPE_MSK, ret);
+
+	/*check if threshold mode is fixed or adaptive*/
+	thrfixed = FIELD_GET(AD7150_CFG_FIX, ret);
+
+	switch (type) {
+	case IIO_EV_TYPE_THRESH_ADAPTIVE:
+		if (dir == IIO_EV_DIR_RISING)
+			return !thrfixed && (threshtype == AD7150_CFG_TT_POS);
+		return !thrfixed && (threshtype == AD7150_CFG_TT_NEG);
+	case IIO_EV_TYPE_THRESH:
+		if (dir == IIO_EV_DIR_RISING)
+			return thrfixed && (threshtype == AD7150_CFG_TT_POS);
+		return thrfixed && (threshtype == AD7150_CFG_TT_NEG);
+	default:
+		break;
+	}
+	return -EINVAL;
+}
+
+/* state_lock should be held to ensure consistent state */
+static int ad7150_write_event_params(struct iio_dev *indio_dev,
+				     unsigned int chan,
+				     enum iio_event_type type,
+				     enum iio_event_direction dir)
+{
+	struct ad7150_chip_info *chip = iio_priv(indio_dev);
+	int rising = (dir == IIO_EV_DIR_RISING);
+
+	/* Only update value live, if parameter is in use */
+	if ((type != chip->type) || (dir != chip->dir))
+		return 0;
+
+	switch (type) {
+		/* Note completely different from the adaptive versions */
+	case IIO_EV_TYPE_THRESH: {
+		u16 value = chip->threshold[rising][chan];
+		return i2c_smbus_write_word_swapped(chip->client,
+						    ad7150_addresses[chan][3],
+						    value);
+	}
+	case IIO_EV_TYPE_THRESH_ADAPTIVE: {
+		int ret;
+		u8 sens, timeout;
+
+		sens = chip->thresh_sensitivity[rising][chan];
+		ret = i2c_smbus_write_byte_data(chip->client,
+						ad7150_addresses[chan][4],
+						sens);
+		if (ret)
+			return ret;
+
+		/*
+		 * Single timeout register contains timeouts for both
+		 * directions.
+		 */
+		timeout = FIELD_PREP(AD7150_CH_TIMEOUT_APPROACHING,
+				     chip->thresh_timeout[1][chan]);
+		timeout |= FIELD_PREP(AD7150_CH_TIMEOUT_RECEDING,
+				      chip->thresh_timeout[0][chan]);
+		return i2c_smbus_write_byte_data(chip->client,
+						 ad7150_addresses[chan][5],
+						 timeout);
+	}
+	default:
+		return -EINVAL;
+	}
+}
+
+static int ad7150_write_event_config(struct iio_dev *indio_dev,
+				     const struct iio_chan_spec *chan,
+				     enum iio_event_type type,
+				     enum iio_event_direction dir, int state)
+{
+	struct ad7150_chip_info *chip = iio_priv(indio_dev);
+	int ret;
+
+	/*
+	 * There is only a single shared control and no on chip
+	 * interrupt disables for the two interrupt lines.
+	 * So, enabling will switch the events configured to enable
+	 * whatever was most recently requested and if necessary enable_irq()
+	 * the interrupt and any disable will disable_irq() for that
+	 * channels interrupt.
+	 */
+	if (!state) {
+		if ((chip->int_enabled[chan->channel]) &&
+		    (type == chip->type) && (dir == chip->dir)) {
+			disable_irq(chip->interrupts[chan->channel]);
+			chip->int_enabled[chan->channel] = false;
+		}
+		return 0;
+	}
+
+	mutex_lock(&chip->state_lock);
+	if ((type != chip->type) || (dir != chip->dir)) {
+		int rising = (dir == IIO_EV_DIR_RISING);
+		u8 thresh_type, cfg, fixed;
+
+		/*
+		 * Need to temporarily disable both interrupts if
+		 * enabled - this is to avoid races around changing
+		 * config and thresholds.
+		 * Note enable/disable_irq() are reference counted so
+		 * no need to check if already enabled.
+		 */
+		disable_irq(chip->interrupts[0]);
+		disable_irq(chip->interrupts[1]);
+
+		ret = i2c_smbus_read_byte_data(chip->client, AD7150_CFG_REG);
+		if (ret < 0)
+			goto error_ret;
+
+		cfg = ret & ~(AD7150_CFG_THRESHTYPE_MSK | AD7150_CFG_FIX);
+
+		if (type == IIO_EV_TYPE_THRESH_ADAPTIVE)
+			fixed = 0;
+		else
+			fixed = 1;
+
+		if (rising)
+			thresh_type = AD7150_CFG_TT_POS;
+		else
+			thresh_type = AD7150_CFG_TT_NEG;
+
+		cfg |= FIELD_PREP(AD7150_CFG_FIX, fixed) |
+			FIELD_PREP(AD7150_CFG_THRESHTYPE_MSK, thresh_type);
+
+		ret = i2c_smbus_write_byte_data(chip->client, AD7150_CFG_REG,
+						cfg);
+		if (ret < 0)
+			goto error_ret;
+
+		/*
+		 * There is a potential race condition here, but not easy
+		 * to close given we can't disable the interrupt at the
+		 * chip side of things. Rely on the status bit.
+		 */
+		chip->type = type;
+		chip->dir = dir;
+
+		/* update control attributes */
+		ret = ad7150_write_event_params(indio_dev, chan->channel, type,
+						dir);
+		if (ret)
+			goto error_ret;
+		/* reenable any irq's we disabled whilst changing mode */
+		enable_irq(chip->interrupts[0]);
+		enable_irq(chip->interrupts[1]);
+	}
+	if (!chip->int_enabled[chan->channel]) {
+		enable_irq(chip->interrupts[chan->channel]);
+		chip->int_enabled[chan->channel] = true;
+	}
+
+error_ret:
+	mutex_unlock(&chip->state_lock);
+
+	return ret;
+}
+
+static int ad7150_read_event_value(struct iio_dev *indio_dev,
+				   const struct iio_chan_spec *chan,
+				   enum iio_event_type type,
+				   enum iio_event_direction dir,
+				   enum iio_event_info info,
+				   int *val, int *val2)
+{
+	struct ad7150_chip_info *chip = iio_priv(indio_dev);
+	int rising = (dir == IIO_EV_DIR_RISING);
+
+	/* Complex register sharing going on here */
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		switch (type) {
+		case IIO_EV_TYPE_THRESH_ADAPTIVE:
+			*val = chip->thresh_sensitivity[rising][chan->channel];
+			return IIO_VAL_INT;
+		case IIO_EV_TYPE_THRESH:
+			*val = chip->threshold[rising][chan->channel];
+			return IIO_VAL_INT;
+		default:
+			return -EINVAL;
+		}
+	case IIO_EV_INFO_TIMEOUT:
+		*val = 0;
+		*val2 = chip->thresh_timeout[rising][chan->channel] * 10000;
+		return IIO_VAL_INT_PLUS_MICRO;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int ad7150_write_event_value(struct iio_dev *indio_dev,
+				    const struct iio_chan_spec *chan,
+				    enum iio_event_type type,
+				    enum iio_event_direction dir,
+				    enum iio_event_info info,
+				    int val, int val2)
+{
+	int ret;
+	struct ad7150_chip_info *chip = iio_priv(indio_dev);
+	int rising = (dir == IIO_EV_DIR_RISING);
+
+	mutex_lock(&chip->state_lock);
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		switch (type) {
+		case IIO_EV_TYPE_THRESH_ADAPTIVE:
+			chip->thresh_sensitivity[rising][chan->channel] = val;
+			break;
+		case IIO_EV_TYPE_THRESH:
+			chip->threshold[rising][chan->channel] = val;
+			break;
+		default:
+			ret = -EINVAL;
+			goto error_ret;
+		}
+		break;
+	case IIO_EV_INFO_TIMEOUT: {
+		/*
+		 * Raw timeout is in cycles of 10 msecs as long as both
+		 * channels are enabled.
+		 * In terms of INT_PLUS_MICRO, that is in units of 10,000
+		 */
+		int timeout = val2 / 10000;
+
+		if (val != 0 || timeout < 0 || timeout > 15 || val2 % 10000) {
+			ret = -EINVAL;
+			goto error_ret;
+		}
+
+		chip->thresh_timeout[rising][chan->channel] = timeout;
+		break;
+	}
+	default:
+		ret = -EINVAL;
+		goto error_ret;
+	}
+
+	/* write back if active */
+	ret = ad7150_write_event_params(indio_dev, chan->channel, type, dir);
+
+error_ret:
+	mutex_unlock(&chip->state_lock);
+	return ret;
+}
+
+static const struct iio_event_spec ad7150_events[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH_ADAPTIVE,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE) |
+			BIT(IIO_EV_INFO_TIMEOUT),
+	}, {
+		.type = IIO_EV_TYPE_THRESH_ADAPTIVE,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE) |
+			BIT(IIO_EV_INFO_TIMEOUT),
+	},
+};
+
+#define AD7150_CAPACITANCE_CHAN(_chan)	{			\
+		.type = IIO_CAPACITANCE,			\
+		.indexed = 1,					\
+		.channel = _chan,				\
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |	\
+		BIT(IIO_CHAN_INFO_AVERAGE_RAW),			\
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | \
+			BIT(IIO_CHAN_INFO_OFFSET),		\
+		.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),\
+		.event_spec = ad7150_events,			\
+		.num_event_specs = ARRAY_SIZE(ad7150_events),	\
+	}
+
+#define AD7150_CAPACITANCE_CHAN_NO_IRQ(_chan)	{		\
+		.type = IIO_CAPACITANCE,			\
+		.indexed = 1,					\
+		.channel = _chan,				\
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |	\
+		BIT(IIO_CHAN_INFO_AVERAGE_RAW),			\
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | \
+			BIT(IIO_CHAN_INFO_OFFSET),		\
+		.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),\
+	}
+
+static const struct iio_chan_spec ad7150_channels[] = {
+	AD7150_CAPACITANCE_CHAN(0),
+	AD7150_CAPACITANCE_CHAN(1),
+};
+
+static const struct iio_chan_spec ad7150_channels_no_irq[] = {
+	AD7150_CAPACITANCE_CHAN_NO_IRQ(0),
+	AD7150_CAPACITANCE_CHAN_NO_IRQ(1),
+};
+
+static const struct iio_chan_spec ad7151_channels[] = {
+	AD7150_CAPACITANCE_CHAN(0),
+};
+
+static const struct iio_chan_spec ad7151_channels_no_irq[] = {
+	AD7150_CAPACITANCE_CHAN_NO_IRQ(0),
+};
+
+static irqreturn_t __ad7150_event_handler(void *private, u8 status_mask,
+					  int channel)
+{
+	struct iio_dev *indio_dev = private;
+	struct ad7150_chip_info *chip = iio_priv(indio_dev);
+	s64 timestamp = iio_get_time_ns(indio_dev);
+	int int_status;
+
+	int_status = i2c_smbus_read_byte_data(chip->client, AD7150_STATUS_REG);
+	if (int_status < 0)
+		return IRQ_HANDLED;
+
+	/*
+	 * There are race conditions around enabling and disabling that
+	 * could easily land us here with a spurious interrupt.
+	 * Just eat it if so.
+	 */
+	if (!(int_status & status_mask))
+		return IRQ_HANDLED;
+
+	iio_push_event(indio_dev,
+		       IIO_UNMOD_EVENT_CODE(IIO_CAPACITANCE, channel,
+					    chip->type, chip->dir),
+		       timestamp);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t ad7150_event_handler_ch1(int irq, void *private)
+{
+	return __ad7150_event_handler(private, AD7150_STATUS_OUT1, 0);
+}
+
+static irqreturn_t ad7150_event_handler_ch2(int irq, void *private)
+{
+	return __ad7150_event_handler(private, AD7150_STATUS_OUT2, 1);
+}
+
+static IIO_CONST_ATTR(in_capacitance_thresh_adaptive_timeout_available,
+		      "[0 0.01 0.15]");
+
+static struct attribute *ad7150_event_attributes[] = {
+	&iio_const_attr_in_capacitance_thresh_adaptive_timeout_available
+	.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group ad7150_event_attribute_group = {
+	.attrs = ad7150_event_attributes,
+	.name = "events",
+};
+
+static const struct iio_info ad7150_info = {
+	.event_attrs = &ad7150_event_attribute_group,
+	.read_raw = &ad7150_read_raw,
+	.read_event_config = &ad7150_read_event_config,
+	.write_event_config = &ad7150_write_event_config,
+	.read_event_value = &ad7150_read_event_value,
+	.write_event_value = &ad7150_write_event_value,
+};
+
+static const struct iio_info ad7150_info_no_irq = {
+	.read_raw = &ad7150_read_raw,
+};
+
+static void ad7150_reg_disable(void *data)
+{
+	struct regulator *reg = data;
+
+	regulator_disable(reg);
+}
+
+static int ad7150_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct ad7150_chip_info *chip;
+	struct iio_dev *indio_dev;
+	struct regulator *reg;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	chip = iio_priv(indio_dev);
+	mutex_init(&chip->state_lock);
+	chip->client = client;
+
+	indio_dev->name = id->name;
+
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	reg = devm_regulator_get(&client->dev, "vdd");
+	if (IS_ERR(reg))
+		return PTR_ERR(reg);
+
+	ret = regulator_enable(reg);
+	if (ret)
+		return ret;
+
+	ret = devm_add_action_or_reset(&client->dev, ad7150_reg_disable, reg);
+	if (ret)
+		return ret;
+
+	chip->interrupts[0] = fwnode_irq_get(dev_fwnode(&client->dev), 0);
+	if (chip->interrupts[0] < 0)
+		return chip->interrupts[0];
+	if (id->driver_data == AD7150) {
+		chip->interrupts[1] = fwnode_irq_get(dev_fwnode(&client->dev), 1);
+		if (chip->interrupts[1] < 0)
+			return chip->interrupts[1];
+	}
+	if (chip->interrupts[0] &&
+	    (id->driver_data == AD7151 || chip->interrupts[1])) {
+		irq_set_status_flags(chip->interrupts[0], IRQ_NOAUTOEN);
+		ret = devm_request_threaded_irq(&client->dev,
+						chip->interrupts[0],
+						NULL,
+						&ad7150_event_handler_ch1,
+						IRQF_TRIGGER_RISING |
+						IRQF_ONESHOT,
+						"ad7150_irq1",
+						indio_dev);
+		if (ret)
+			return ret;
+
+		indio_dev->info = &ad7150_info;
+		switch (id->driver_data) {
+		case AD7150:
+			indio_dev->channels = ad7150_channels;
+			indio_dev->num_channels = ARRAY_SIZE(ad7150_channels);
+			irq_set_status_flags(chip->interrupts[1], IRQ_NOAUTOEN);
+			ret = devm_request_threaded_irq(&client->dev,
+							chip->interrupts[1],
+							NULL,
+							&ad7150_event_handler_ch2,
+							IRQF_TRIGGER_RISING |
+							IRQF_ONESHOT,
+							"ad7150_irq2",
+							indio_dev);
+			if (ret)
+				return ret;
+			break;
+		case AD7151:
+			indio_dev->channels = ad7151_channels;
+			indio_dev->num_channels = ARRAY_SIZE(ad7151_channels);
+			break;
+		default:
+			return -EINVAL;
+		}
+
+	} else {
+		indio_dev->info = &ad7150_info_no_irq;
+		switch (id->driver_data) {
+		case AD7150:
+			indio_dev->channels = ad7150_channels_no_irq;
+			indio_dev->num_channels =
+				ARRAY_SIZE(ad7150_channels_no_irq);
+			break;
+		case AD7151:
+			indio_dev->channels = ad7151_channels_no_irq;
+			indio_dev->num_channels =
+				ARRAY_SIZE(ad7151_channels_no_irq);
+			break;
+		default:
+			return -EINVAL;
+		}
+	}
+
+	return devm_iio_device_register(indio_dev->dev.parent, indio_dev);
+}
+
+static const struct i2c_device_id ad7150_id[] = {
+	{ "ad7150", AD7150 },
+	{ "ad7151", AD7151 },
+	{ "ad7156", AD7150 },
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, ad7150_id);
+
+static const struct of_device_id ad7150_of_match[] = {
+	{ "adi,ad7150" },
+	{ "adi,ad7151" },
+	{ "adi,ad7156" },
+	{}
+};
+static struct i2c_driver ad7150_driver = {
+	.driver = {
+		.name = "ad7150",
+		.of_match_table = ad7150_of_match,
+	},
+	.probe = ad7150_probe,
+	.id_table = ad7150_id,
+};
+module_i2c_driver(ad7150_driver);
+
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_DESCRIPTION("Analog Devices AD7150/1/6 capacitive sensor driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/cdc/Kconfig b/drivers/staging/iio/cdc/Kconfig
index e0a5ce66a984..a7386bbbcb79 100644
--- a/drivers/staging/iio/cdc/Kconfig
+++ b/drivers/staging/iio/cdc/Kconfig
@@ -4,16 +4,6 @@
 #
 menu "Capacitance to digital converters"
 
-config AD7150
-	tristate "Analog Devices ad7150/1/6 capacitive sensor driver"
-	depends on I2C
-	help
-	  Say yes here to build support for Analog Devices capacitive sensors.
-	  (ad7150, ad7151, ad7156) Provides direct access via sysfs.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ad7150.
-
 config AD7746
 	tristate "Analog Devices AD7745, AD7746 AD7747 capacitive sensor driver"
 	depends on I2C
diff --git a/drivers/staging/iio/cdc/Makefile b/drivers/staging/iio/cdc/Makefile
index ab8222579e7e..afb7499a7090 100644
--- a/drivers/staging/iio/cdc/Makefile
+++ b/drivers/staging/iio/cdc/Makefile
@@ -1,7 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 #
-# Makefile for industrial I/O DAC drivers
+# Makefile for industrial I/O CDC drivers
 #
 
-obj-$(CONFIG_AD7150) += ad7150.o
 obj-$(CONFIG_AD7746) += ad7746.o
diff --git a/drivers/staging/iio/cdc/ad7150.c b/drivers/staging/iio/cdc/ad7150.c
deleted file mode 100644
index b6d2c02fa39d..000000000000
--- a/drivers/staging/iio/cdc/ad7150.c
+++ /dev/null
@@ -1,678 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * AD7150 capacitive sensor driver supporting AD7150/1/6
- *
- * Copyright 2010-2011 Analog Devices Inc.
- * Copyright 2021 Jonathan Cameron <Jonathan.Cameron@huawei.com>
- */
-
-#include <linux/bitfield.h>
-#include <linux/device.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/i2c.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/mod_devicetable.h>
-#include <linux/regulator/consumer.h>
-#include <linux/slab.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/events.h>
-
-#define AD7150_STATUS_REG		0
-#define   AD7150_STATUS_OUT1		BIT(3)
-#define   AD7150_STATUS_OUT2		BIT(5)
-#define AD7150_CH1_DATA_HIGH_REG	1
-#define AD7150_CH2_DATA_HIGH_REG	3
-#define AD7150_CH1_AVG_HIGH_REG		5
-#define AD7150_CH2_AVG_HIGH_REG		7
-#define AD7150_CH1_SENSITIVITY_REG	9
-#define AD7150_CH1_THR_HOLD_H_REG	9
-#define AD7150_CH1_TIMEOUT_REG		10
-#define   AD7150_CH_TIMEOUT_RECEDING	GENMASK(3, 0)
-#define   AD7150_CH_TIMEOUT_APPROACHING	GENMASK(7, 4)
-#define AD7150_CH1_SETUP_REG		11
-#define AD7150_CH2_SENSITIVITY_REG	12
-#define AD7150_CH2_THR_HOLD_H_REG	12
-#define AD7150_CH2_TIMEOUT_REG		13
-#define AD7150_CH2_SETUP_REG		14
-#define AD7150_CFG_REG			15
-#define   AD7150_CFG_FIX		BIT(7)
-#define   AD7150_CFG_THRESHTYPE_MSK	GENMASK(6, 5)
-#define   AD7150_CFG_TT_NEG		0x0
-#define   AD7150_CFG_TT_POS		0x1
-#define   AD7150_CFG_TT_IN_WINDOW	0x2
-#define   AD7150_CFG_TT_OUT_WINDOW	0x3
-#define AD7150_PD_TIMER_REG		16
-#define AD7150_CH1_CAPDAC_REG		17
-#define AD7150_CH2_CAPDAC_REG		18
-#define AD7150_SN3_REG			19
-#define AD7150_SN2_REG			20
-#define AD7150_SN1_REG			21
-#define AD7150_SN0_REG			22
-#define AD7150_ID_REG			23
-
-enum {
-	AD7150,
-	AD7151,
-};
-
-/**
- * struct ad7150_chip_info - instance specific chip data
- * @client: i2c client for this device
- * @threshold: thresholds for simple capacitance value events
- * @thresh_sensitivity: threshold for simple capacitance offset
- *	from 'average' value.
- * @thresh_timeout: a timeout, in samples from the moment an
- *	adaptive threshold event occurs to when the average
- *	value jumps to current value.  Note made up of two fields,
- *      3:0 are for timeout receding - applies if below lower threshold
- *      7:4 are for timeout approaching - applies if above upper threshold
- * @state_lock: ensure consistent state of this structure wrt the
- *	hardware.
- * @interrupts: one or two interrupt numbers depending on device type.
- * @int_enabled: is a given interrupt currently enabled.
- * @type: threshold type
- * @dir: threshold direction
- */
-struct ad7150_chip_info {
-	struct i2c_client *client;
-	u16 threshold[2][2];
-	u8 thresh_sensitivity[2][2];
-	u8 thresh_timeout[2][2];
-	struct mutex state_lock;
-	int interrupts[2];
-	bool int_enabled[2];
-	enum iio_event_type type;
-	enum iio_event_direction dir;
-};
-
-static const u8 ad7150_addresses[][6] = {
-	{ AD7150_CH1_DATA_HIGH_REG, AD7150_CH1_AVG_HIGH_REG,
-	  AD7150_CH1_SETUP_REG, AD7150_CH1_THR_HOLD_H_REG,
-	  AD7150_CH1_SENSITIVITY_REG, AD7150_CH1_TIMEOUT_REG },
-	{ AD7150_CH2_DATA_HIGH_REG, AD7150_CH2_AVG_HIGH_REG,
-	  AD7150_CH2_SETUP_REG, AD7150_CH2_THR_HOLD_H_REG,
-	  AD7150_CH2_SENSITIVITY_REG, AD7150_CH2_TIMEOUT_REG },
-};
-
-static int ad7150_read_raw(struct iio_dev *indio_dev,
-			   struct iio_chan_spec const *chan,
-			   int *val,
-			   int *val2,
-			   long mask)
-{
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	int channel = chan->channel;
-	int ret;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		ret = i2c_smbus_read_word_swapped(chip->client,
-						  ad7150_addresses[channel][0]);
-		if (ret < 0)
-			return ret;
-		*val = ret >> 4;
-
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_AVERAGE_RAW:
-		ret = i2c_smbus_read_word_swapped(chip->client,
-						  ad7150_addresses[channel][1]);
-		if (ret < 0)
-			return ret;
-		*val = ret;
-
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SCALE:
-		/*
-		 * Base units for capacitance are nano farads and the value
-		 * calculated from the datasheet formula is in picofarad
-		 * so multiply by 1000
-		 */
-		*val = 1000;
-		*val2 = 40944 >> 4; /* To match shift in _RAW */
-		return IIO_VAL_FRACTIONAL;
-	case IIO_CHAN_INFO_OFFSET:
-		*val = -(12288 >> 4); /* To match shift in _RAW */
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SAMP_FREQ:
-		/* Strangely same for both 1 and 2 chan parts */
-		*val = 100;
-		return IIO_VAL_INT;
-	default:
-		return -EINVAL;
-	}
-}
-
-static int ad7150_read_event_config(struct iio_dev *indio_dev,
-				    const struct iio_chan_spec *chan,
-				    enum iio_event_type type,
-				    enum iio_event_direction dir)
-{
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	u8 threshtype;
-	bool thrfixed;
-	int ret;
-
-	ret = i2c_smbus_read_byte_data(chip->client, AD7150_CFG_REG);
-	if (ret < 0)
-		return ret;
-
-	threshtype = FIELD_GET(AD7150_CFG_THRESHTYPE_MSK, ret);
-
-	/*check if threshold mode is fixed or adaptive*/
-	thrfixed = FIELD_GET(AD7150_CFG_FIX, ret);
-
-	switch (type) {
-	case IIO_EV_TYPE_THRESH_ADAPTIVE:
-		if (dir == IIO_EV_DIR_RISING)
-			return !thrfixed && (threshtype == AD7150_CFG_TT_POS);
-		return !thrfixed && (threshtype == AD7150_CFG_TT_NEG);
-	case IIO_EV_TYPE_THRESH:
-		if (dir == IIO_EV_DIR_RISING)
-			return thrfixed && (threshtype == AD7150_CFG_TT_POS);
-		return thrfixed && (threshtype == AD7150_CFG_TT_NEG);
-	default:
-		break;
-	}
-	return -EINVAL;
-}
-
-/* state_lock should be held to ensure consistent state */
-static int ad7150_write_event_params(struct iio_dev *indio_dev,
-				     unsigned int chan,
-				     enum iio_event_type type,
-				     enum iio_event_direction dir)
-{
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	int rising = (dir == IIO_EV_DIR_RISING);
-
-	/* Only update value live, if parameter is in use */
-	if ((type != chip->type) || (dir != chip->dir))
-		return 0;
-
-	switch (type) {
-		/* Note completely different from the adaptive versions */
-	case IIO_EV_TYPE_THRESH: {
-		u16 value = chip->threshold[rising][chan];
-		return i2c_smbus_write_word_swapped(chip->client,
-						    ad7150_addresses[chan][3],
-						    value);
-	}
-	case IIO_EV_TYPE_THRESH_ADAPTIVE: {
-		int ret;
-		u8 sens, timeout;
-
-		sens = chip->thresh_sensitivity[rising][chan];
-		ret = i2c_smbus_write_byte_data(chip->client,
-						ad7150_addresses[chan][4],
-						sens);
-		if (ret)
-			return ret;
-
-		/*
-		 * Single timeout register contains timeouts for both
-		 * directions.
-		 */
-		timeout = FIELD_PREP(AD7150_CH_TIMEOUT_APPROACHING,
-				     chip->thresh_timeout[1][chan]);
-		timeout |= FIELD_PREP(AD7150_CH_TIMEOUT_RECEDING,
-				      chip->thresh_timeout[0][chan]);
-		return i2c_smbus_write_byte_data(chip->client,
-						 ad7150_addresses[chan][5],
-						 timeout);
-	}
-	default:
-		return -EINVAL;
-	}
-}
-
-static int ad7150_write_event_config(struct iio_dev *indio_dev,
-				     const struct iio_chan_spec *chan,
-				     enum iio_event_type type,
-				     enum iio_event_direction dir, int state)
-{
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	int ret;
-
-	/*
-	 * There is only a single shared control and no on chip
-	 * interrupt disables for the two interrupt lines.
-	 * So, enabling will switch the events configured to enable
-	 * whatever was most recently requested and if necessary enable_irq()
-	 * the interrupt and any disable will disable_irq() for that
-	 * channels interrupt.
-	 */
-	if (!state) {
-		if ((chip->int_enabled[chan->channel]) &&
-		    (type == chip->type) && (dir == chip->dir)) {
-			disable_irq(chip->interrupts[chan->channel]);
-			chip->int_enabled[chan->channel] = false;
-		}
-		return 0;
-	}
-
-	mutex_lock(&chip->state_lock);
-	if ((type != chip->type) || (dir != chip->dir)) {
-		int rising = (dir == IIO_EV_DIR_RISING);
-		u8 thresh_type, cfg, fixed;
-
-		/*
-		 * Need to temporarily disable both interrupts if
-		 * enabled - this is to avoid races around changing
-		 * config and thresholds.
-		 * Note enable/disable_irq() are reference counted so
-		 * no need to check if already enabled.
-		 */
-		disable_irq(chip->interrupts[0]);
-		disable_irq(chip->interrupts[1]);
-
-		ret = i2c_smbus_read_byte_data(chip->client, AD7150_CFG_REG);
-		if (ret < 0)
-			goto error_ret;
-
-		cfg = ret & ~(AD7150_CFG_THRESHTYPE_MSK | AD7150_CFG_FIX);
-
-		if (type == IIO_EV_TYPE_THRESH_ADAPTIVE)
-			fixed = 0;
-		else
-			fixed = 1;
-
-		if (rising)
-			thresh_type = AD7150_CFG_TT_POS;
-		else
-			thresh_type = AD7150_CFG_TT_NEG;
-
-		cfg |= FIELD_PREP(AD7150_CFG_FIX, fixed) |
-			FIELD_PREP(AD7150_CFG_THRESHTYPE_MSK, thresh_type);
-
-		ret = i2c_smbus_write_byte_data(chip->client, AD7150_CFG_REG,
-						cfg);
-		if (ret < 0)
-			goto error_ret;
-
-		/*
-		 * There is a potential race condition here, but not easy
-		 * to close given we can't disable the interrupt at the
-		 * chip side of things. Rely on the status bit.
-		 */
-		chip->type = type;
-		chip->dir = dir;
-
-		/* update control attributes */
-		ret = ad7150_write_event_params(indio_dev, chan->channel, type,
-						dir);
-		if (ret)
-			goto error_ret;
-		/* reenable any irq's we disabled whilst changing mode */
-		enable_irq(chip->interrupts[0]);
-		enable_irq(chip->interrupts[1]);
-	}
-	if (!chip->int_enabled[chan->channel]) {
-		enable_irq(chip->interrupts[chan->channel]);
-		chip->int_enabled[chan->channel] = true;
-	}
-
-error_ret:
-	mutex_unlock(&chip->state_lock);
-
-	return ret;
-}
-
-static int ad7150_read_event_value(struct iio_dev *indio_dev,
-				   const struct iio_chan_spec *chan,
-				   enum iio_event_type type,
-				   enum iio_event_direction dir,
-				   enum iio_event_info info,
-				   int *val, int *val2)
-{
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	int rising = (dir == IIO_EV_DIR_RISING);
-
-	/* Complex register sharing going on here */
-	switch (info) {
-	case IIO_EV_INFO_VALUE:
-		switch (type) {
-		case IIO_EV_TYPE_THRESH_ADAPTIVE:
-			*val = chip->thresh_sensitivity[rising][chan->channel];
-			return IIO_VAL_INT;
-		case IIO_EV_TYPE_THRESH:
-			*val = chip->threshold[rising][chan->channel];
-			return IIO_VAL_INT;
-		default:
-			return -EINVAL;
-		}
-	case IIO_EV_INFO_TIMEOUT:
-		*val = 0;
-		*val2 = chip->thresh_timeout[rising][chan->channel] * 10000;
-		return IIO_VAL_INT_PLUS_MICRO;
-	default:
-		return -EINVAL;
-	}
-}
-
-static int ad7150_write_event_value(struct iio_dev *indio_dev,
-				    const struct iio_chan_spec *chan,
-				    enum iio_event_type type,
-				    enum iio_event_direction dir,
-				    enum iio_event_info info,
-				    int val, int val2)
-{
-	int ret;
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	int rising = (dir == IIO_EV_DIR_RISING);
-
-	mutex_lock(&chip->state_lock);
-	switch (info) {
-	case IIO_EV_INFO_VALUE:
-		switch (type) {
-		case IIO_EV_TYPE_THRESH_ADAPTIVE:
-			chip->thresh_sensitivity[rising][chan->channel] = val;
-			break;
-		case IIO_EV_TYPE_THRESH:
-			chip->threshold[rising][chan->channel] = val;
-			break;
-		default:
-			ret = -EINVAL;
-			goto error_ret;
-		}
-		break;
-	case IIO_EV_INFO_TIMEOUT: {
-		/*
-		 * Raw timeout is in cycles of 10 msecs as long as both
-		 * channels are enabled.
-		 * In terms of INT_PLUS_MICRO, that is in units of 10,000
-		 */
-		int timeout = val2 / 10000;
-
-		if (val != 0 || timeout < 0 || timeout > 15 || val2 % 10000) {
-			ret = -EINVAL;
-			goto error_ret;
-		}
-
-		chip->thresh_timeout[rising][chan->channel] = timeout;
-		break;
-	}
-	default:
-		ret = -EINVAL;
-		goto error_ret;
-	}
-
-	/* write back if active */
-	ret = ad7150_write_event_params(indio_dev, chan->channel, type, dir);
-
-error_ret:
-	mutex_unlock(&chip->state_lock);
-	return ret;
-}
-
-static const struct iio_event_spec ad7150_events[] = {
-	{
-		.type = IIO_EV_TYPE_THRESH,
-		.dir = IIO_EV_DIR_RISING,
-		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
-			BIT(IIO_EV_INFO_ENABLE),
-	}, {
-		.type = IIO_EV_TYPE_THRESH,
-		.dir = IIO_EV_DIR_FALLING,
-		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
-			BIT(IIO_EV_INFO_ENABLE),
-	}, {
-		.type = IIO_EV_TYPE_THRESH_ADAPTIVE,
-		.dir = IIO_EV_DIR_RISING,
-		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
-			BIT(IIO_EV_INFO_ENABLE) |
-			BIT(IIO_EV_INFO_TIMEOUT),
-	}, {
-		.type = IIO_EV_TYPE_THRESH_ADAPTIVE,
-		.dir = IIO_EV_DIR_FALLING,
-		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
-			BIT(IIO_EV_INFO_ENABLE) |
-			BIT(IIO_EV_INFO_TIMEOUT),
-	},
-};
-
-#define AD7150_CAPACITANCE_CHAN(_chan)	{			\
-		.type = IIO_CAPACITANCE,			\
-		.indexed = 1,					\
-		.channel = _chan,				\
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |	\
-		BIT(IIO_CHAN_INFO_AVERAGE_RAW),			\
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | \
-			BIT(IIO_CHAN_INFO_OFFSET),		\
-		.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),\
-		.event_spec = ad7150_events,			\
-		.num_event_specs = ARRAY_SIZE(ad7150_events),	\
-	}
-
-#define AD7150_CAPACITANCE_CHAN_NO_IRQ(_chan)	{		\
-		.type = IIO_CAPACITANCE,			\
-		.indexed = 1,					\
-		.channel = _chan,				\
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |	\
-		BIT(IIO_CHAN_INFO_AVERAGE_RAW),			\
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | \
-			BIT(IIO_CHAN_INFO_OFFSET),		\
-		.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),\
-	}
-
-static const struct iio_chan_spec ad7150_channels[] = {
-	AD7150_CAPACITANCE_CHAN(0),
-	AD7150_CAPACITANCE_CHAN(1),
-};
-
-static const struct iio_chan_spec ad7150_channels_no_irq[] = {
-	AD7150_CAPACITANCE_CHAN_NO_IRQ(0),
-	AD7150_CAPACITANCE_CHAN_NO_IRQ(1),
-};
-
-static const struct iio_chan_spec ad7151_channels[] = {
-	AD7150_CAPACITANCE_CHAN(0),
-};
-
-static const struct iio_chan_spec ad7151_channels_no_irq[] = {
-	AD7150_CAPACITANCE_CHAN_NO_IRQ(0),
-};
-
-static irqreturn_t __ad7150_event_handler(void *private, u8 status_mask,
-					  int channel)
-{
-	struct iio_dev *indio_dev = private;
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	s64 timestamp = iio_get_time_ns(indio_dev);
-	int int_status;
-
-	int_status = i2c_smbus_read_byte_data(chip->client, AD7150_STATUS_REG);
-	if (int_status < 0)
-		return IRQ_HANDLED;
-
-	/*
-	 * There are race conditions around enabling and disabling that
-	 * could easily land us here with a spurious interrupt.
-	 * Just eat it if so.
-	 */
-	if (!(int_status & status_mask))
-		return IRQ_HANDLED;
-
-	iio_push_event(indio_dev,
-		       IIO_UNMOD_EVENT_CODE(IIO_CAPACITANCE, channel,
-					    chip->type, chip->dir),
-		       timestamp);
-
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t ad7150_event_handler_ch1(int irq, void *private)
-{
-	return __ad7150_event_handler(private, AD7150_STATUS_OUT1, 0);
-}
-
-static irqreturn_t ad7150_event_handler_ch2(int irq, void *private)
-{
-	return __ad7150_event_handler(private, AD7150_STATUS_OUT2, 1);
-}
-
-static IIO_CONST_ATTR(in_capacitance_thresh_adaptive_timeout_available,
-		      "[0 0.01 0.15]");
-
-static struct attribute *ad7150_event_attributes[] = {
-	&iio_const_attr_in_capacitance_thresh_adaptive_timeout_available
-	.dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group ad7150_event_attribute_group = {
-	.attrs = ad7150_event_attributes,
-	.name = "events",
-};
-
-static const struct iio_info ad7150_info = {
-	.event_attrs = &ad7150_event_attribute_group,
-	.read_raw = &ad7150_read_raw,
-	.read_event_config = &ad7150_read_event_config,
-	.write_event_config = &ad7150_write_event_config,
-	.read_event_value = &ad7150_read_event_value,
-	.write_event_value = &ad7150_write_event_value,
-};
-
-static const struct iio_info ad7150_info_no_irq = {
-	.read_raw = &ad7150_read_raw,
-};
-
-static void ad7150_reg_disable(void *data)
-{
-	struct regulator *reg = data;
-
-	regulator_disable(reg);
-}
-
-static int ad7150_probe(struct i2c_client *client,
-			const struct i2c_device_id *id)
-{
-	struct ad7150_chip_info *chip;
-	struct iio_dev *indio_dev;
-	struct regulator *reg;
-	int ret;
-
-	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
-	if (!indio_dev)
-		return -ENOMEM;
-
-	chip = iio_priv(indio_dev);
-	mutex_init(&chip->state_lock);
-	chip->client = client;
-
-	indio_dev->name = id->name;
-
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	reg = devm_regulator_get(&client->dev, "vdd");
-	if (IS_ERR(reg))
-		return PTR_ERR(reg);
-
-	ret = regulator_enable(reg);
-	if (ret)
-		return ret;
-
-	ret = devm_add_action_or_reset(&client->dev, ad7150_reg_disable, reg);
-	if (ret)
-		return ret;
-
-	chip->interrupts[0] = fwnode_irq_get(dev_fwnode(&client->dev), 0);
-	if (chip->interrupts[0] < 0)
-		return chip->interrupts[0];
-	if (id->driver_data == AD7150) {
-		chip->interrupts[1] = fwnode_irq_get(dev_fwnode(&client->dev), 1);
-		if (chip->interrupts[1] < 0)
-			return chip->interrupts[1];
-	}
-	if (chip->interrupts[0] &&
-	    (id->driver_data == AD7151 || chip->interrupts[1])) {
-		irq_set_status_flags(chip->interrupts[0], IRQ_NOAUTOEN);
-		ret = devm_request_threaded_irq(&client->dev,
-						chip->interrupts[0],
-						NULL,
-						&ad7150_event_handler_ch1,
-						IRQF_TRIGGER_RISING |
-						IRQF_ONESHOT,
-						"ad7150_irq1",
-						indio_dev);
-		if (ret)
-			return ret;
-
-		indio_dev->info = &ad7150_info;
-		switch (id->driver_data) {
-		case AD7150:
-			indio_dev->channels = ad7150_channels;
-			indio_dev->num_channels = ARRAY_SIZE(ad7150_channels);
-			irq_set_status_flags(chip->interrupts[1], IRQ_NOAUTOEN);
-			ret = devm_request_threaded_irq(&client->dev,
-							chip->interrupts[1],
-							NULL,
-							&ad7150_event_handler_ch2,
-							IRQF_TRIGGER_RISING |
-							IRQF_ONESHOT,
-							"ad7150_irq2",
-							indio_dev);
-			if (ret)
-				return ret;
-			break;
-		case AD7151:
-			indio_dev->channels = ad7151_channels;
-			indio_dev->num_channels = ARRAY_SIZE(ad7151_channels);
-			break;
-		default:
-			return -EINVAL;
-		}
-
-	} else {
-		indio_dev->info = &ad7150_info_no_irq;
-		switch (id->driver_data) {
-		case AD7150:
-			indio_dev->channels = ad7150_channels_no_irq;
-			indio_dev->num_channels =
-				ARRAY_SIZE(ad7150_channels_no_irq);
-			break;
-		case AD7151:
-			indio_dev->channels = ad7151_channels_no_irq;
-			indio_dev->num_channels =
-				ARRAY_SIZE(ad7151_channels_no_irq);
-			break;
-		default:
-			return -EINVAL;
-		}
-	}
-
-	return devm_iio_device_register(indio_dev->dev.parent, indio_dev);
-}
-
-static const struct i2c_device_id ad7150_id[] = {
-	{ "ad7150", AD7150 },
-	{ "ad7151", AD7151 },
-	{ "ad7156", AD7150 },
-	{}
-};
-
-MODULE_DEVICE_TABLE(i2c, ad7150_id);
-
-static const struct of_device_id ad7150_of_match[] = {
-	{ "adi,ad7150" },
-	{ "adi,ad7151" },
-	{ "adi,ad7156" },
-	{}
-};
-static struct i2c_driver ad7150_driver = {
-	.driver = {
-		.name = "ad7150",
-		.of_match_table = ad7150_of_match,
-	},
-	.probe = ad7150_probe,
-	.id_table = ad7150_id,
-};
-module_i2c_driver(ad7150_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices AD7150/1/6 capacitive sensor driver");
-MODULE_LICENSE("GPL v2");
