Merge tag 'staging-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging / IIO driver updates from Greg KH:
 "Here is the large set of staging and IIO driver updates for 5.10-rc1.

  Included in here are:

   - new IIO drivers

   - new IIO driver frameworks

   - various IIO driver fixes and updates

   - IIO device tree conversions to yaml

   - so many minor staging driver coding style cleanups

   - most cdev driver moved out of staging

   - no staging drivers added or removed

  Full details are in the shortlog.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (476 commits)
  staging: comedi: check validity of wMaxPacketSize of usb endpoints found
  staging: wfx: improve robustness of wfx_get_hw_rate()
  staging: wfx: drop unicode characters from strings
  staging: wfx: gpiod_get_value() can return an error
  staging: wfx: increase robustness of hif_generic_confirm()
  staging: wfx: wfx_init_common() returns NULL on error
  staging: wfx: standardize the error when vif does not exist
  staging: wfx: check memory allocation
  staging: wfx: improve error handling of hif_join()
  staging: dpaa2-switch: add a dpaa2_switch prefix to all functions in ethsw.c
  staging: dpaa2-switch: add a dpaa2_switch_ prefix to all functions in ethsw-ethtool.c
  staging: rtl8188eu: Fix long lines
  dt-bindings: staging: wfx: silabs,wfx yaml conversion
  staging: wfx: update copyrights dates
  staging: wfx: fix QoS priority for slow buses
  staging: wfx: fix BA sessions for older firmwares
  staging: wfx: remove remaining code of 'secure link' feature
  staging: wfx: fix handling of MMIC error
  staging: vchiq: Fix list_for_each exit tests
  staging: greybus: use __force when assigning __u8 value to snd_ctl_elem_type_t
  ...

137 files changed, 3833 insertions, 1481 deletions

diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig
index d5c073a8aa3e..267553386c71 100644
--- a/drivers/iio/Kconfig
+++ b/drivers/iio/Kconfig
@@ -63,7 +63,7 @@ config IIO_SW_TRIGGER
 	  using the API provided.
 
 config IIO_TRIGGERED_EVENT
-	tristate
+	tristate "Enable triggered events support"
 	select IIO_TRIGGER
 	help
 	  Provides helper functions for setting up triggered events.
diff --git a/drivers/iio/accel/adis16201.c b/drivers/iio/accel/adis16201.c
index 59a24c355a1a..f955cccb3e77 100644
--- a/drivers/iio/accel/adis16201.c
+++ b/drivers/iio/accel/adis16201.c
@@ -281,34 +281,15 @@ static int adis16201_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = adis_setup_buffer_and_trigger(st, indio_dev, NULL);
+	ret = devm_adis_setup_buffer_and_trigger(st, indio_dev, NULL);
 	if (ret)
 		return ret;
 
 	ret = adis_initial_startup(st);
 	if (ret)
-		goto error_cleanup_buffer_trigger;
-
-	ret = iio_device_register(indio_dev);
-	if (ret < 0)
-		goto error_cleanup_buffer_trigger;
-
-	return 0;
-
-error_cleanup_buffer_trigger:
-	adis_cleanup_buffer_and_trigger(st, indio_dev);
-	return ret;
-}
-
-static int adis16201_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct adis *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	adis_cleanup_buffer_and_trigger(st, indio_dev);
+		return ret;
 
-	return 0;
+	return devm_iio_device_register(&spi->dev, indio_dev);
 }
 
 static struct spi_driver adis16201_driver = {
@@ -316,7 +297,6 @@ static struct spi_driver adis16201_driver = {
 		.name = "adis16201",
 	},
 	.probe = adis16201_probe,
-	.remove = adis16201_remove,
 };
 module_spi_driver(adis16201_driver);
 
diff --git a/drivers/iio/accel/adis16209.c b/drivers/iio/accel/adis16209.c
index 3d5538e2f76e..4a841aec6268 100644
--- a/drivers/iio/accel/adis16209.c
+++ b/drivers/iio/accel/adis16209.c
@@ -291,33 +291,15 @@ static int adis16209_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = adis_setup_buffer_and_trigger(st, indio_dev, NULL);
+	ret = devm_adis_setup_buffer_and_trigger(st, indio_dev, NULL);
 	if (ret)
 		return ret;
 
 	ret = adis_initial_startup(st);
 	if (ret)
-		goto error_cleanup_buffer_trigger;
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_cleanup_buffer_trigger;
-
-	return 0;
-
-error_cleanup_buffer_trigger:
-	adis_cleanup_buffer_and_trigger(st, indio_dev);
-	return ret;
-}
-
-static int adis16209_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct adis *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	adis_cleanup_buffer_and_trigger(st, indio_dev);
+		return ret;
 
-	return 0;
+	return devm_iio_device_register(&spi->dev, indio_dev);
 }
 
 static struct spi_driver adis16209_driver = {
@@ -325,7 +307,6 @@ static struct spi_driver adis16209_driver = {
 		.name = "adis16209",
 	},
 	.probe = adis16209_probe,
-	.remove = adis16209_remove,
 };
 module_spi_driver(adis16209_driver);
 
diff --git a/drivers/iio/accel/adxl372.c b/drivers/iio/accel/adxl372.c
index e7e316b75e87..aed2a4930fb0 100644
--- a/drivers/iio/accel/adxl372.c
+++ b/drivers/iio/accel/adxl372.c
@@ -5,6 +5,7 @@
  * Copyright 2018 Analog Devices Inc.
  */
 
+#include <linux/bitfield.h>
 #include <linux/bitops.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
@@ -113,6 +114,11 @@
 #define ADXL372_STATUS_1_AWAKE(x)		(((x) >> 6) & 0x1)
 #define ADXL372_STATUS_1_ERR_USR_REGS(x)	(((x) >> 7) & 0x1)
 
+/* ADXL372_STATUS_2 */
+#define ADXL372_STATUS_2_INACT(x)		(((x) >> 4) & 0x1)
+#define ADXL372_STATUS_2_ACT(x)			(((x) >> 5) & 0x1)
+#define ADXL372_STATUS_2_AC2(x)			(((x) >> 6) & 0x1)
+
 /* ADXL372_INT1_MAP */
 #define ADXL372_INT1_MAP_DATA_RDY_MSK		BIT(0)
 #define ADXL372_INT1_MAP_DATA_RDY_MODE(x)	(((x) & 0x1) << 0)
@@ -131,8 +137,17 @@
 #define ADXL372_INT1_MAP_LOW_MSK		BIT(7)
 #define ADXL372_INT1_MAP_LOW_MODE(x)		(((x) & 0x1) << 7)
 
+/* ADX372_THRESH */
+#define ADXL372_THRESH_VAL_H_MSK	GENMASK(10, 3)
+#define ADXL372_THRESH_VAL_H_SEL(x)	FIELD_GET(ADXL372_THRESH_VAL_H_MSK, x)
+#define ADXL372_THRESH_VAL_L_MSK	GENMASK(2, 0)
+#define ADXL372_THRESH_VAL_L_SEL(x)	FIELD_GET(ADXL372_THRESH_VAL_L_MSK, x)
+
 /* The ADXL372 includes a deep, 512 sample FIFO buffer */
 #define ADXL372_FIFO_SIZE			512
+#define ADXL372_X_AXIS_EN(x)			((x) & BIT(0))
+#define ADXL372_Y_AXIS_EN(x)			((x) & BIT(1))
+#define ADXL372_Z_AXIS_EN(x)			((x) & BIT(2))
 
 /*
  * At +/- 200g with 12-bit resolution, scale is computed as:
@@ -222,6 +237,20 @@ static const struct adxl372_axis_lookup adxl372_axis_lookup_table[] = {
 	{ BIT(0) | BIT(1) | BIT(2), ADXL372_XYZ_FIFO },
 };
 
+static const struct iio_event_spec adxl372_events[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE),
+		.mask_shared_by_all = BIT(IIO_EV_INFO_PERIOD) | BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE),
+		.mask_shared_by_all = BIT(IIO_EV_INFO_PERIOD) | BIT(IIO_EV_INFO_ENABLE),
+	},
+};
+
 #define ADXL372_ACCEL_CHANNEL(index, reg, axis) {			\
 	.type = IIO_ACCEL,						\
 	.address = reg,							\
@@ -239,6 +268,8 @@ static const struct adxl372_axis_lookup adxl372_axis_lookup_table[] = {
 		.shift = 4,						\
 		.endianness = IIO_BE,					\
 	},								\
+	.event_spec = adxl372_events,					\
+	.num_event_specs = ARRAY_SIZE(adxl372_events)			\
 }
 
 static const struct iio_chan_spec adxl372_channels[] = {
@@ -252,8 +283,10 @@ struct adxl372_state {
 	struct device			*dev;
 	struct regmap			*regmap;
 	struct iio_trigger		*dready_trig;
+	struct iio_trigger		*peak_datardy_trig;
 	enum adxl372_fifo_mode		fifo_mode;
 	enum adxl372_fifo_format	fifo_format;
+	unsigned int			fifo_axis_mask;
 	enum adxl372_op_mode		op_mode;
 	enum adxl372_act_proc_mode	act_proc_mode;
 	enum adxl372_odr		odr;
@@ -261,10 +294,12 @@ struct adxl372_state {
 	u32				act_time_ms;
 	u32				inact_time_ms;
 	u8				fifo_set_size;
-	u8				int1_bitmask;
-	u8				int2_bitmask;
+	unsigned long			int1_bitmask;
+	unsigned long			int2_bitmask;
 	u16				watermark;
 	__be16				fifo_buf[ADXL372_FIFO_SIZE];
+	bool				peak_fifo_mode_en;
+	struct mutex			threshold_m; /* lock for threshold */
 };
 
 static const unsigned long adxl372_channel_masks[] = {
@@ -276,6 +311,46 @@ static const unsigned long adxl372_channel_masks[] = {
 	0
 };
 
+static ssize_t adxl372_read_threshold_value(struct iio_dev *indio_dev, unsigned int addr,
+					    u16 *threshold)
+{
+	struct adxl372_state *st = iio_priv(indio_dev);
+	__be16 raw_regval;
+	u16 regval;
+	int ret;
+
+	ret = regmap_bulk_read(st->regmap, addr, &raw_regval, sizeof(raw_regval));
+	if (ret < 0)
+		return ret;
+
+	regval = be16_to_cpu(raw_regval);
+	regval >>= 5;
+
+	*threshold = regval;
+
+	return 0;
+}
+
+static ssize_t adxl372_write_threshold_value(struct iio_dev *indio_dev, unsigned int addr,
+					     u16 threshold)
+{
+	struct adxl372_state *st = iio_priv(indio_dev);
+	int ret;
+
+	mutex_lock(&st->threshold_m);
+	ret = regmap_write(st->regmap, addr, ADXL372_THRESH_VAL_H_SEL(threshold));
+	if (ret < 0)
+		goto unlock;
+
+	ret = regmap_update_bits(st->regmap, addr + 1, GENMASK(7, 5),
+				 ADXL372_THRESH_VAL_L_SEL(threshold) << 5);
+
+unlock:
+	mutex_unlock(&st->threshold_m);
+
+	return ret;
+}
+
 static int adxl372_read_axis(struct adxl372_state *st, u8 addr)
 {
 	__be16 regval;
@@ -453,8 +528,8 @@ static int adxl372_set_inactivity_time_ms(struct adxl372_state *st,
 }
 
 static int adxl372_set_interrupts(struct adxl372_state *st,
-				  unsigned char int1_bitmask,
-				  unsigned char int2_bitmask)
+				  unsigned long int1_bitmask,
+				  unsigned long int2_bitmask)
 {
 	int ret;
 
@@ -523,6 +598,39 @@ static int adxl372_get_status(struct adxl372_state *st,
 	return ret;
 }
 
+static void adxl372_arrange_axis_data(struct adxl372_state *st, __be16 *sample)
+{
+	__be16	axis_sample[3];
+	int i = 0;
+
+	memset(axis_sample, 0, 3 * sizeof(__be16));
+	if (ADXL372_X_AXIS_EN(st->fifo_axis_mask))
+		axis_sample[i++] = sample[0];
+	if (ADXL372_Y_AXIS_EN(st->fifo_axis_mask))
+		axis_sample[i++] = sample[1];
+	if (ADXL372_Z_AXIS_EN(st->fifo_axis_mask))
+		axis_sample[i++] = sample[2];
+
+	memcpy(sample, axis_sample, 3 * sizeof(__be16));
+}
+
+static void adxl372_push_event(struct iio_dev *indio_dev, s64 timestamp, u8 status2)
+{
+	unsigned int ev_dir = IIO_EV_DIR_NONE;
+
+	if (ADXL372_STATUS_2_ACT(status2))
+		ev_dir = IIO_EV_DIR_RISING;
+
+	if (ADXL372_STATUS_2_INACT(status2))
+		ev_dir = IIO_EV_DIR_FALLING;
+
+	if (ev_dir != IIO_EV_DIR_NONE)
+		iio_push_event(indio_dev,
+			       IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_X_OR_Y_OR_Z,
+						  IIO_EV_TYPE_THRESH, ev_dir),
+			       timestamp);
+}
+
 static irqreturn_t adxl372_trigger_handler(int irq, void  *p)
 {
 	struct iio_poll_func *pf = p;
@@ -536,6 +644,8 @@ static irqreturn_t adxl372_trigger_handler(int irq, void  *p)
 	if (ret < 0)
 		goto err;
 
+	adxl372_push_event(indio_dev, iio_get_time_ns(indio_dev), status2);
+
 	if (st->fifo_mode != ADXL372_FIFO_BYPASSED &&
 	    ADXL372_STATUS_1_FIFO_FULL(status1)) {
 		/*
@@ -554,8 +664,12 @@ static irqreturn_t adxl372_trigger_handler(int irq, void  *p)
 			goto err;
 
 		/* Each sample is 2 bytes */
-		for (i = 0; i < fifo_entries; i += st->fifo_set_size)
+		for (i = 0; i < fifo_entries; i += st->fifo_set_size) {
+			/* filter peak detection data */
+			if (st->peak_fifo_mode_en)
+				adxl372_arrange_axis_data(st, &st->fifo_buf[i]);
 			iio_push_to_buffers(indio_dev, &st->fifo_buf[i]);
+		}
 	}
 err:
 	iio_trigger_notify_done(indio_dev->trig);
@@ -723,6 +837,129 @@ static int adxl372_write_raw(struct iio_dev *indio_dev,
 	}
 }
 
+static int adxl372_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 adxl372_state *st = iio_priv(indio_dev);
+	unsigned int addr;
+	u16 raw_value;
+	int ret;
+
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		switch (dir) {
+		case IIO_EV_DIR_RISING:
+			addr = ADXL372_X_THRESH_ACT_H + 2 * chan->scan_index;
+			ret = adxl372_read_threshold_value(indio_dev, addr, &raw_value);
+			if (ret < 0)
+				return ret;
+			*val = raw_value * ADXL372_USCALE;
+			*val2 = 1000000;
+			return IIO_VAL_FRACTIONAL;
+		case IIO_EV_DIR_FALLING:
+			addr = ADXL372_X_THRESH_INACT_H + 2 * chan->scan_index;
+			ret =  adxl372_read_threshold_value(indio_dev, addr, &raw_value);
+			if (ret < 0)
+				return ret;
+			*val = raw_value * ADXL372_USCALE;
+			*val2 = 1000000;
+			return IIO_VAL_FRACTIONAL;
+		default:
+			return -EINVAL;
+		}
+	case IIO_EV_INFO_PERIOD:
+		switch (dir) {
+		case IIO_EV_DIR_RISING:
+			*val = st->act_time_ms;
+			*val2 = 1000;
+			return IIO_VAL_FRACTIONAL;
+		case IIO_EV_DIR_FALLING:
+			*val = st->inact_time_ms;
+			*val2 = 1000;
+			return IIO_VAL_FRACTIONAL;
+		default:
+			return -EINVAL;
+		}
+	default:
+		return -EINVAL;
+	}
+}
+
+static int adxl372_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)
+{
+	struct adxl372_state *st = iio_priv(indio_dev);
+	unsigned int val_ms;
+	unsigned int addr;
+	u16 raw_val;
+
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		raw_val = DIV_ROUND_UP(val * 1000000, ADXL372_USCALE);
+		switch (dir) {
+		case IIO_EV_DIR_RISING:
+			addr = ADXL372_X_THRESH_ACT_H + 2 * chan->scan_index;
+			return adxl372_write_threshold_value(indio_dev, addr, raw_val);
+		case IIO_EV_DIR_FALLING:
+			addr = ADXL372_X_THRESH_INACT_H + 2 * chan->scan_index;
+			return adxl372_write_threshold_value(indio_dev, addr, raw_val);
+		default:
+			return -EINVAL;
+		}
+	case IIO_EV_INFO_PERIOD:
+		val_ms = val * 1000 + DIV_ROUND_UP(val2, 1000);
+		switch (dir) {
+		case IIO_EV_DIR_RISING:
+			return adxl372_set_activity_time_ms(st, val_ms);
+		case IIO_EV_DIR_FALLING:
+			return adxl372_set_inactivity_time_ms(st, val_ms);
+		default:
+			return -EINVAL;
+		}
+	default:
+		return -EINVAL;
+	}
+}
+
+static int adxl372_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 adxl372_state *st = iio_priv(indio_dev);
+
+	switch (dir) {
+	case IIO_EV_DIR_RISING:
+		return FIELD_GET(ADXL372_INT1_MAP_ACT_MSK, st->int1_bitmask);
+	case IIO_EV_DIR_FALLING:
+		return FIELD_GET(ADXL372_INT1_MAP_INACT_MSK, st->int1_bitmask);
+	default:
+		return -EINVAL;
+	}
+}
+
+static int adxl372_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 adxl372_state *st = iio_priv(indio_dev);
+
+	switch (dir) {
+	case IIO_EV_DIR_RISING:
+		set_mask_bits(&st->int1_bitmask, ADXL372_INT1_MAP_ACT_MSK,
+			      ADXL372_INT1_MAP_ACT_MODE(state));
+		break;
+	case IIO_EV_DIR_FALLING:
+		set_mask_bits(&st->int1_bitmask, ADXL372_INT1_MAP_INACT_MSK,
+			      ADXL372_INT1_MAP_INACT_MODE(state));
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return adxl372_set_interrupts(st, st->int1_bitmask, 0);
+}
+
 static ssize_t adxl372_show_filter_freq_avail(struct device *dev,
 					      struct device_attribute *attr,
 					      char *buf)
@@ -795,7 +1032,8 @@ static int adxl372_buffer_postenable(struct iio_dev *indio_dev)
 	unsigned int mask;
 	int i, ret;
 
-	ret = adxl372_set_interrupts(st, ADXL372_INT1_MAP_FIFO_FULL_MSK, 0);
+	st->int1_bitmask |= ADXL372_INT1_MAP_FIFO_FULL_MSK;
+	ret = adxl372_set_interrupts(st, st->int1_bitmask, 0);
 	if (ret < 0)
 		return ret;
 
@@ -810,13 +1048,22 @@ static int adxl372_buffer_postenable(struct iio_dev *indio_dev)
 		return -EINVAL;
 
 	st->fifo_format = adxl372_axis_lookup_table[i].fifo_format;
+	st->fifo_axis_mask = adxl372_axis_lookup_table[i].bits;
 	st->fifo_set_size = bitmap_weight(indio_dev->active_scan_mask,
 					  indio_dev->masklength);
+
+	/* Configure the FIFO to store sets of impact event peak. */
+	if (st->peak_fifo_mode_en) {
+		st->fifo_set_size = 3;
+		st->fifo_format = ADXL372_XYZ_PEAK_FIFO;
+	}
+
 	/*
 	 * The 512 FIFO samples can be allotted in several ways, such as:
 	 * 170 sample sets of concurrent 3-axis data
 	 * 256 sample sets of concurrent 2-axis data (user selectable)
 	 * 512 sample sets of single-axis data
+	 * 170 sets of impact event peak (x, y, z)
 	 */
 	if ((st->watermark * st->fifo_set_size) > ADXL372_FIFO_SIZE)
 		st->watermark = (ADXL372_FIFO_SIZE  / st->fifo_set_size);
@@ -826,7 +1073,8 @@ static int adxl372_buffer_postenable(struct iio_dev *indio_dev)
 	ret = adxl372_configure_fifo(st);
 	if (ret < 0) {
 		st->fifo_mode = ADXL372_FIFO_BYPASSED;
-		adxl372_set_interrupts(st, 0, 0);
+		st->int1_bitmask &= ~ADXL372_INT1_MAP_FIFO_FULL_MSK;
+		adxl372_set_interrupts(st, st->int1_bitmask, 0);
 		return ret;
 	}
 
@@ -837,7 +1085,8 @@ static int adxl372_buffer_predisable(struct iio_dev *indio_dev)
 {
 	struct adxl372_state *st = iio_priv(indio_dev);
 
-	adxl372_set_interrupts(st, 0, 0);
+	st->int1_bitmask &= ~ADXL372_INT1_MAP_FIFO_FULL_MSK;
+	adxl372_set_interrupts(st, st->int1_bitmask, 0);
 	st->fifo_mode = ADXL372_FIFO_BYPASSED;
 	adxl372_configure_fifo(st);
 
@@ -854,12 +1103,11 @@ static int adxl372_dready_trig_set_state(struct iio_trigger *trig,
 {
 	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
 	struct adxl372_state *st = iio_priv(indio_dev);
-	unsigned long int mask = 0;
 
 	if (state)
-		mask = ADXL372_INT1_MAP_FIFO_FULL_MSK;
+		st->int1_bitmask |= ADXL372_INT1_MAP_FIFO_FULL_MSK;
 
-	return adxl372_set_interrupts(st, mask, 0);
+	return adxl372_set_interrupts(st, st->int1_bitmask, 0);
 }
 
 static int adxl372_validate_trigger(struct iio_dev *indio_dev,
@@ -867,7 +1115,7 @@ static int adxl372_validate_trigger(struct iio_dev *indio_dev,
 {
 	struct adxl372_state *st = iio_priv(indio_dev);
 
-	if (st->dready_trig != trig)
+	if (st->dready_trig != trig && st->peak_datardy_trig != trig)
 		return -EINVAL;
 
 	return 0;
@@ -878,6 +1126,25 @@ static const struct iio_trigger_ops adxl372_trigger_ops = {
 	.set_trigger_state = adxl372_dready_trig_set_state,
 };
 
+static int adxl372_peak_dready_trig_set_state(struct iio_trigger *trig,
+					      bool state)
+{
+	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+	struct adxl372_state *st = iio_priv(indio_dev);
+
+	if (state)
+		st->int1_bitmask |= ADXL372_INT1_MAP_FIFO_FULL_MSK;
+
+	st->peak_fifo_mode_en = state;
+
+	return adxl372_set_interrupts(st, st->int1_bitmask, 0);
+}
+
+static const struct iio_trigger_ops adxl372_peak_data_trigger_ops = {
+	.validate_device = &iio_trigger_validate_own_device,
+	.set_trigger_state = adxl372_peak_dready_trig_set_state,
+};
+
 static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("400 800 1600 3200 6400");
 static IIO_DEVICE_ATTR(in_accel_filter_low_pass_3db_frequency_available,
 		       0444, adxl372_show_filter_freq_avail, NULL, 0);
@@ -897,6 +1164,10 @@ static const struct iio_info adxl372_info = {
 	.attrs = &adxl372_attrs_group,
 	.read_raw = adxl372_read_raw,
 	.write_raw = adxl372_write_raw,
+	.read_event_config = adxl372_read_event_config,
+	.write_event_config = adxl372_write_event_config,
+	.read_event_value = adxl372_read_event_value,
+	.write_event_value = adxl372_write_event_value,
 	.debugfs_reg_access = &adxl372_reg_access,
 	.hwfifo_set_watermark = adxl372_set_watermark,
 };
@@ -925,6 +1196,8 @@ int adxl372_probe(struct device *dev, struct regmap *regmap,
 	st->regmap = regmap;
 	st->irq = irq;
 
+	mutex_init(&st->threshold_m);
+
 	indio_dev->channels = adxl372_channels;
 	indio_dev->num_channels = ARRAY_SIZE(adxl372_channels);
 	indio_dev->available_scan_masks = adxl372_channel_masks;
@@ -955,13 +1228,27 @@ int adxl372_probe(struct device *dev, struct regmap *regmap,
 		if (st->dready_trig == NULL)
 			return -ENOMEM;
 
+		st->peak_datardy_trig = devm_iio_trigger_alloc(dev,
+							       "%s-dev%d-peak",
+							       indio_dev->name,
+							       indio_dev->id);
+		if (!st->peak_datardy_trig)
+			return -ENOMEM;
+
 		st->dready_trig->ops = &adxl372_trigger_ops;
+		st->peak_datardy_trig->ops = &adxl372_peak_data_trigger_ops;
 		st->dready_trig->dev.parent = dev;
+		st->peak_datardy_trig->dev.parent = dev;
 		iio_trigger_set_drvdata(st->dready_trig, indio_dev);
+		iio_trigger_set_drvdata(st->peak_datardy_trig, indio_dev);
 		ret = devm_iio_trigger_register(dev, st->dready_trig);
 		if (ret < 0)
 			return ret;
 
+		ret = devm_iio_trigger_register(dev, st->peak_datardy_trig);
+		if (ret < 0)
+			return ret;
+
 		indio_dev->trig = iio_trigger_get(st->dready_trig);
 
 		ret = devm_request_threaded_irq(dev, st->irq,
diff --git a/drivers/iio/accel/adxl372_i2c.c b/drivers/iio/accel/adxl372_i2c.c
index e1affe480c77..9a07ab3d151a 100644
--- a/drivers/iio/accel/adxl372_i2c.c
+++ b/drivers/iio/accel/adxl372_i2c.c
@@ -6,6 +6,7 @@
  */
 
 #include <linux/i2c.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/regmap.h>
 
@@ -46,9 +47,16 @@ static const struct i2c_device_id adxl372_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, adxl372_i2c_id);
 
+static const struct of_device_id adxl372_of_match[] = {
+	{ .compatible = "adi,adxl372" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, adxl372_of_match);
+
 static struct i2c_driver adxl372_i2c_driver = {
 	.driver = {
 		.name = "adxl372_i2c",
+		.of_match_table = adxl372_of_match,
 	},
 	.probe = adxl372_i2c_probe,
 	.id_table = adxl372_i2c_id,
diff --git a/drivers/iio/accel/adxl372_spi.c b/drivers/iio/accel/adxl372_spi.c
index 3ef7e3a4804e..1f1352fee99a 100644
--- a/drivers/iio/accel/adxl372_spi.c
+++ b/drivers/iio/accel/adxl372_spi.c
@@ -40,8 +40,8 @@ static const struct spi_device_id adxl372_spi_id[] = {
 MODULE_DEVICE_TABLE(spi, adxl372_spi_id);
 
 static const struct of_device_id adxl372_of_match[] = {
-        { .compatible = "adi,adxl372" },
-        { },
+	{ .compatible = "adi,adxl372" },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, adxl372_of_match);
 
diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index 5b7a467c7b27..6b74c2b04c15 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -673,7 +673,7 @@ static const struct iio_chan_spec_ext_info bma023_ext_info[] = {
 };
 
 static const struct iio_chan_spec_ext_info bma180_ext_info[] = {
-	IIO_ENUM("power_mode", true, &bma180_power_mode_enum),
+	IIO_ENUM("power_mode", IIO_SHARED_BY_TYPE, &bma180_power_mode_enum),
 	IIO_ENUM_AVAILABLE("power_mode", &bma180_power_mode_enum),
 	IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, bma180_accel_get_mount_matrix),
 	{ }
@@ -1000,19 +1000,15 @@ static int bma180_probe(struct i2c_client *client,
 		return ret;
 
 	data->vdd_supply = devm_regulator_get(dev, "vdd");
-	if (IS_ERR(data->vdd_supply)) {
-		if (PTR_ERR(data->vdd_supply) != -EPROBE_DEFER)
-			dev_err(dev, "Failed to get vdd regulator %d\n",
-				(int)PTR_ERR(data->vdd_supply));
-		return PTR_ERR(data->vdd_supply);
-	}
+	if (IS_ERR(data->vdd_supply))
+		return dev_err_probe(dev, PTR_ERR(data->vdd_supply),
+				     "Failed to get vdd regulator\n");
+
 	data->vddio_supply = devm_regulator_get(dev, "vddio");
-	if (IS_ERR(data->vddio_supply)) {
-		if (PTR_ERR(data->vddio_supply) != -EPROBE_DEFER)
-			dev_err(dev, "Failed to get vddio regulator %d\n",
-				(int)PTR_ERR(data->vddio_supply));
-		return PTR_ERR(data->vddio_supply);
-	}
+	if (IS_ERR(data->vddio_supply))
+		return dev_err_probe(dev, PTR_ERR(data->vddio_supply),
+				     "Failed to get vddio regulator\n");
+
 	/* Typical voltage 2.4V these are min and max */
 	ret = regulator_set_voltage(data->vdd_supply, 1620000, 3600000);
 	if (ret)
diff --git a/drivers/iio/accel/bma220_spi.c b/drivers/iio/accel/bma220_spi.c
index da8b36cc8628..3c9b0c6954e6 100644
--- a/drivers/iio/accel/bma220_spi.c
+++ b/drivers/iio/accel/bma220_spi.c
@@ -2,16 +2,18 @@
 /**
  * BMA220 Digital triaxial acceleration sensor driver
  *
- * Copyright (c) 2016, Intel Corporation.
+ * Copyright (c) 2016,2020 Intel Corporation.
  */
 
-#include <linux/acpi.h>
+#include <linux/bits.h>
 #include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
+#include <linux/spi/spi.h>
+
 #include <linux/iio/buffer.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
-#include <linux/spi/spi.h>
 #include <linux/iio/trigger_consumer.h>
 #include <linux/iio/triggered_buffer.h>
 
@@ -23,14 +25,13 @@
 #define BMA220_REG_SUSPEND			0x18
 
 #define BMA220_CHIP_ID				0xDD
-#define BMA220_READ_MASK			0x80
-#define BMA220_RANGE_MASK			0x03
+#define BMA220_READ_MASK			BIT(7)
+#define BMA220_RANGE_MASK			GENMASK(1, 0)
 #define BMA220_DATA_SHIFT			2
 #define BMA220_SUSPEND_SLEEP			0xFF
 #define BMA220_SUSPEND_WAKE			0x00
 
 #define BMA220_DEVICE_NAME			"bma220"
-#define BMA220_SCALE_AVAILABLE			"0.623 1.248 2.491 4.983"
 
 #define BMA220_ACCEL_CHANNEL(index, reg, axis) {			\
 	.type = IIO_ACCEL,						\
@@ -55,19 +56,8 @@ enum bma220_axis {
 	AXIS_Z,
 };
 
-static IIO_CONST_ATTR(in_accel_scale_available, BMA220_SCALE_AVAILABLE);
-
-static struct attribute *bma220_attributes[] = {
-	&iio_const_attr_in_accel_scale_available.dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group bma220_attribute_group = {
-	.attrs = bma220_attributes,
-};
-
-static const int bma220_scale_table[][4] = {
-	{0, 623000}, {1, 248000}, {2, 491000}, {4, 983000}
+static const int bma220_scale_table[][2] = {
+	{0, 623000}, {1, 248000}, {2, 491000}, {4, 983000},
 };
 
 struct bma220_data {
@@ -182,10 +172,26 @@ static int bma220_write_raw(struct iio_dev *indio_dev,
 	return -EINVAL;
 }
 
+static int bma220_read_avail(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     const int **vals, int *type, int *length,
+			     long mask)
+{
+	switch (mask) {
+	case IIO_CHAN_INFO_SCALE:
+		*vals = (int *)bma220_scale_table;
+		*type = IIO_VAL_INT_PLUS_MICRO;
+		*length = ARRAY_SIZE(bma220_scale_table) * 2;
+		return IIO_AVAIL_LIST;
+	default:
+		return -EINVAL;
+	}
+}
+
 static const struct iio_info bma220_info = {
 	.read_raw		= bma220_read_raw,
 	.write_raw		= bma220_write_raw,
-	.attrs			= &bma220_attribute_group,
+	.read_avail		= bma220_read_avail,
 };
 
 static int bma220_init(struct spi_device *spi)
@@ -198,10 +204,12 @@ static int bma220_init(struct spi_device *spi)
 
 	/* Make sure the chip is powered on */
 	ret = bma220_read_reg(spi, BMA220_REG_SUSPEND);
+	if (ret == BMA220_SUSPEND_WAKE)
+		ret = bma220_read_reg(spi, BMA220_REG_SUSPEND);
 	if (ret < 0)
 		return ret;
-	else if (ret == BMA220_SUSPEND_WAKE)
-		return bma220_read_reg(spi, BMA220_REG_SUSPEND);
+	if (ret == BMA220_SUSPEND_WAKE)
+		return -EBUSY;
 
 	return 0;
 }
@@ -212,10 +220,12 @@ static int bma220_deinit(struct spi_device *spi)
 
 	/* Make sure the chip is powered off */
 	ret = bma220_read_reg(spi, BMA220_REG_SUSPEND);
+	if (ret == BMA220_SUSPEND_SLEEP)
+		ret = bma220_read_reg(spi, BMA220_REG_SUSPEND);
 	if (ret < 0)
 		return ret;
-	else if (ret == BMA220_SUSPEND_SLEEP)
-		return bma220_read_reg(spi, BMA220_REG_SUSPEND);
+	if (ret == BMA220_SUSPEND_SLEEP)
+		return -EBUSY;
 
 	return 0;
 }
@@ -245,7 +255,7 @@ static int bma220_probe(struct spi_device *spi)
 	indio_dev->available_scan_masks = bma220_accel_scan_masks;
 
 	ret = bma220_init(data->spi_device);
-	if (ret < 0)
+	if (ret)
 		return ret;
 
 	ret = iio_triggered_buffer_setup(indio_dev, iio_pollfunc_store_time,
@@ -278,56 +288,43 @@ static int bma220_remove(struct spi_device *spi)
 	return bma220_deinit(spi);
 }
 
-#ifdef CONFIG_PM_SLEEP
-static int bma220_suspend(struct device *dev)
+static __maybe_unused int bma220_suspend(struct device *dev)
 {
-	struct bma220_data *data =
-			iio_priv(spi_get_drvdata(to_spi_device(dev)));
+	struct bma220_data *data = iio_priv(dev_get_drvdata(dev));
 
 	/* The chip can be suspended/woken up by a simple register read. */
 	return bma220_read_reg(data->spi_device, BMA220_REG_SUSPEND);
 }
 
-static int bma220_resume(struct device *dev)
+static __maybe_unused int bma220_resume(struct device *dev)
 {
-	struct bma220_data *data =
-			iio_priv(spi_get_drvdata(to_spi_device(dev)));
+	struct bma220_data *data = iio_priv(dev_get_drvdata(dev));
 
 	return bma220_read_reg(data->spi_device, BMA220_REG_SUSPEND);
 }
-
 static SIMPLE_DEV_PM_OPS(bma220_pm_ops, bma220_suspend, bma220_resume);
 
-#define BMA220_PM_OPS (&bma220_pm_ops)
-#else
-#define BMA220_PM_OPS NULL
-#endif
-
 static const struct spi_device_id bma220_spi_id[] = {
 	{"bma220", 0},
 	{}
 };
 
-#ifdef CONFIG_ACPI
 static const struct acpi_device_id bma220_acpi_id[] = {
 	{"BMA0220", 0},
 	{}
 };
-
 MODULE_DEVICE_TABLE(spi, bma220_spi_id);
-#endif
 
 static struct spi_driver bma220_driver = {
 	.driver = {
 		.name = "bma220_spi",
-		.pm = BMA220_PM_OPS,
-		.acpi_match_table = ACPI_PTR(bma220_acpi_id),
+		.pm = &bma220_pm_ops,
+		.acpi_match_table = bma220_acpi_id,
 	},
 	.probe =            bma220_probe,
 	.remove =           bma220_remove,
 	.id_table =         bma220_spi_id,
 };
-
 module_spi_driver(bma220_driver);
 
 MODULE_AUTHOR("Tiberiu Breana <tiberiu.a.breana@intel.com>");
diff --git a/drivers/iio/accel/cros_ec_accel_legacy.c b/drivers/iio/accel/cros_ec_accel_legacy.c
index b6f3471b62dc..8f1232c38e0d 100644
--- a/drivers/iio/accel/cros_ec_accel_legacy.c
+++ b/drivers/iio/accel/cros_ec_accel_legacy.c
@@ -215,7 +215,7 @@ static int cros_ec_accel_legacy_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	ret = cros_ec_sensors_core_init(pdev, indio_dev, true,
-					cros_ec_sensors_capture, NULL);
+					cros_ec_sensors_capture, NULL, false);
 	if (ret)
 		return ret;
 
diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index 853febc29488..bf1d2c8afdbd 100644
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -1543,22 +1543,14 @@ static int mma8452_probe(struct i2c_client *client,
 	data->chip_info = match->data;
 
 	data->vdd_reg = devm_regulator_get(&client->dev, "vdd");
-	if (IS_ERR(data->vdd_reg)) {
-		if (PTR_ERR(data->vdd_reg) == -EPROBE_DEFER)
-			return -EPROBE_DEFER;
-
-		dev_err(&client->dev, "failed to get VDD regulator!\n");
-		return PTR_ERR(data->vdd_reg);
-	}
+	if (IS_ERR(data->vdd_reg))
+		return dev_err_probe(&client->dev, PTR_ERR(data->vdd_reg),
+				     "failed to get VDD regulator!\n");
 
 	data->vddio_reg = devm_regulator_get(&client->dev, "vddio");
-	if (IS_ERR(data->vddio_reg)) {
-		if (PTR_ERR(data->vddio_reg) == -EPROBE_DEFER)
-			return -EPROBE_DEFER;
-
-		dev_err(&client->dev, "failed to get VDDIO regulator!\n");
-		return PTR_ERR(data->vddio_reg);
-	}
+	if (IS_ERR(data->vddio_reg))
+		return dev_err_probe(&client->dev, PTR_ERR(data->vddio_reg),
+				     "failed to get VDDIO regulator!\n");
 
 	ret = regulator_enable(data->vdd_reg);
 	if (ret) {
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index d94dc800b842..91ae90514aff 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -340,7 +340,7 @@ config AXP288_ADC
 
 config BCM_IPROC_ADC
 	tristate "Broadcom IPROC ADC driver"
-	depends on ARCH_BCM_IPROC || COMPILE_TEST
+	depends on (ARCH_BCM_IPROC && OF) || COMPILE_TEST
 	depends on MFD_SYSCON
 	default ARCH_BCM_CYGNUS
 	help
@@ -863,7 +863,7 @@ config RN5T618_ADC
 
 config ROCKCHIP_SARADC
 	tristate "Rockchip SARADC driver"
-	depends on ARCH_ROCKCHIP || (ARM && COMPILE_TEST)
+	depends on ARCH_ROCKCHIP || COMPILE_TEST
 	depends on RESET_CONTROLLER
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
diff --git a/drivers/iio/adc/ad7291.c b/drivers/iio/adc/ad7291.c
index 62fde2aad282..2301a0e27f23 100644
--- a/drivers/iio/adc/ad7291.c
+++ b/drivers/iio/adc/ad7291.c
@@ -20,8 +20,6 @@
 #include <linux/iio/sysfs.h>
 #include <linux/iio/events.h>
 
-#include <linux/platform_data/ad7291.h>
-
 /*
  * Simplified handling
  *
@@ -465,7 +463,6 @@ static const struct iio_info ad7291_info = {
 static int ad7291_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
-	struct ad7291_platform_data *pdata = client->dev.platform_data;
 	struct ad7291_chip_info *chip;
 	struct iio_dev *indio_dev;
 	int ret;
@@ -475,16 +472,6 @@ static int ad7291_probe(struct i2c_client *client,
 		return -ENOMEM;
 	chip = iio_priv(indio_dev);
 
-	if (pdata && pdata->use_external_ref) {
-		chip->reg = devm_regulator_get(&client->dev, "vref");
-		if (IS_ERR(chip->reg))
-			return PTR_ERR(chip->reg);
-
-		ret = regulator_enable(chip->reg);
-		if (ret)
-			return ret;
-	}
-
 	mutex_init(&chip->state_lock);
 	/* this is only used for device removal purposes */
 	i2c_set_clientdata(client, indio_dev);
@@ -495,8 +482,21 @@ static int ad7291_probe(struct i2c_client *client,
 			AD7291_T_SENSE_MASK | /* Tsense always enabled */
 			AD7291_ALERT_POLARITY; /* set irq polarity low level */
 
-	if (pdata && pdata->use_external_ref)
+	chip->reg = devm_regulator_get_optional(&client->dev, "vref");
+	if (IS_ERR(chip->reg)) {
+		if (PTR_ERR(chip->reg) != -ENODEV)
+			return PTR_ERR(chip->reg);
+
+		chip->reg = NULL;
+	}
+
+	if (chip->reg) {
+		ret = regulator_enable(chip->reg);
+		if (ret)
+			return ret;
+
 		chip->command |= AD7291_EXT_REF;
+	}
 
 	indio_dev->name = id->name;
 	indio_dev->channels = ad7291_channels;
@@ -567,9 +567,16 @@ static const struct i2c_device_id ad7291_id[] = {
 
 MODULE_DEVICE_TABLE(i2c, ad7291_id);
 
+static const struct of_device_id ad7291_of_match[] = {
+	{ .compatible = "adi,ad7291" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, ad7291_of_match);
+
 static struct i2c_driver ad7291_driver = {
 	.driver = {
 		.name = KBUILD_MODNAME,
+		.of_match_table = ad7291_of_match,
 	},
 	.probe = ad7291_probe,
 	.remove = ad7291_remove,
diff --git a/drivers/iio/adc/ad7292.c b/drivers/iio/adc/ad7292.c
index 2eafbe7ac7c7..ab204e9199e9 100644
--- a/drivers/iio/adc/ad7292.c
+++ b/drivers/iio/adc/ad7292.c
@@ -310,8 +310,10 @@ static int ad7292_probe(struct spi_device *spi)
 
 	for_each_available_child_of_node(spi->dev.of_node, child) {
 		diff_channels = of_property_read_bool(child, "diff-channels");
-		if (diff_channels)
+		if (diff_channels) {
+			of_node_put(child);
 			break;
+		}
 	}
 
 	if (diff_channels) {
diff --git a/drivers/iio/adc/ad7949.c b/drivers/iio/adc/ad7949.c
index d9566a83988a..5d597e5050f6 100644
--- a/drivers/iio/adc/ad7949.c
+++ b/drivers/iio/adc/ad7949.c
@@ -39,7 +39,7 @@ static const struct ad7949_adc_spec ad7949_adc_spec[] = {
  * struct ad7949_adc_chip - AD ADC chip
  * @lock: protects write sequences
  * @vref: regulator generating Vref
- * @iio_dev: reference to iio structure
+ * @indio_dev: reference to iio structure
  * @spi: reference to spi structure
  * @resolution: resolution of the chip
  * @cfg: copy of the configuration register
diff --git a/drivers/iio/adc/ad9467.c b/drivers/iio/adc/ad9467.c
index 1e8fd83b9bc2..19a45dd43796 100644
--- a/drivers/iio/adc/ad9467.c
+++ b/drivers/iio/adc/ad9467.c
@@ -77,6 +77,22 @@
 #define AN877_ADC_DCO_DELAY_ENABLE		0x80
 
 /*
+ * Analog Devices AD9265 16-Bit, 125/105/80 MSPS ADC
+ */
+
+#define CHIPID_AD9265			0x64
+#define AD9265_DEF_OUTPUT_MODE		0x40
+#define AD9265_REG_VREF_MASK		0xC0
+
+/*
+ * Analog Devices AD9434 12-Bit, 370/500 MSPS ADC
+ */
+
+#define CHIPID_AD9434			0x6A
+#define AD9434_DEF_OUTPUT_MODE		0x00
+#define AD9434_REG_VREF_MASK		0xC0
+
+/*
  * Analog Devices AD9467 16-Bit, 200/250 MSPS ADC
  */
 
@@ -85,9 +101,20 @@
 #define AD9467_REG_VREF_MASK		0x0F
 
 enum {
+	ID_AD9265,
+	ID_AD9434,
 	ID_AD9467,
 };
 
+struct ad9467_chip_info {
+	struct adi_axi_adc_chip_info	axi_adc_info;
+	unsigned int			default_output_mode;
+	unsigned int			vref_mask;
+};
+
+#define to_ad9467_chip_info(_info)	\
+	container_of(_info, struct ad9467_chip_info, axi_adc_info)
+
 struct ad9467_state {
 	struct spi_device		*spi;
 	struct clk			*clk;
@@ -149,6 +176,17 @@ static int ad9467_reg_access(struct adi_axi_adc_conv *conv, unsigned int reg,
 	return 0;
 }
 
+static const unsigned int ad9265_scale_table[][2] = {
+	{1250, 0x00}, {1500, 0x40}, {1750, 0x80}, {2000, 0xC0},
+};
+
+static const unsigned int ad9434_scale_table[][2] = {
+	{1600, 0x1C}, {1580, 0x1D}, {1550, 0x1E}, {1520, 0x1F}, {1500, 0x00},
+	{1470, 0x01}, {1440, 0x02}, {1420, 0x03}, {1390, 0x04}, {1360, 0x05},
+	{1340, 0x06}, {1310, 0x07}, {1280, 0x08}, {1260, 0x09}, {1230, 0x0A},
+	{1200, 0x0B}, {1180, 0x0C},
+};
+
 static const unsigned int ad9467_scale_table[][2] = {
 	{2000, 0}, {2100, 6}, {2200, 7},
 	{2300, 8}, {2400, 9}, {2500, 10},
@@ -182,39 +220,63 @@ static void __ad9467_get_scale(struct adi_axi_adc_conv *conv, int index,
 	},								\
 }
 
+static const struct iio_chan_spec ad9434_channels[] = {
+	AD9467_CHAN(0, 0, 12, 'S'),
+};
+
 static const struct iio_chan_spec ad9467_channels[] = {
 	AD9467_CHAN(0, 0, 16, 'S'),
 };
 
-static const struct adi_axi_adc_chip_info ad9467_chip_tbl[] = {
+static const struct ad9467_chip_info ad9467_chip_tbl[] = {
+	[ID_AD9265] = {
+		.axi_adc_info = {
+			.id = CHIPID_AD9265,
+			.max_rate = 125000000UL,
+			.scale_table = ad9265_scale_table,
+			.num_scales = ARRAY_SIZE(ad9265_scale_table),
+			.channels = ad9467_channels,
+			.num_channels = ARRAY_SIZE(ad9467_channels),
+		},
+		.default_output_mode = AD9265_DEF_OUTPUT_MODE,
+		.vref_mask = AD9265_REG_VREF_MASK,
+	},
+	[ID_AD9434] = {
+		.axi_adc_info = {
+			.id = CHIPID_AD9434,
+			.max_rate = 500000000UL,
+			.scale_table = ad9434_scale_table,
+			.num_scales = ARRAY_SIZE(ad9434_scale_table),
+			.channels = ad9434_channels,
+			.num_channels = ARRAY_SIZE(ad9434_channels),
+		},
+		.default_output_mode = AD9434_DEF_OUTPUT_MODE,
+		.vref_mask = AD9434_REG_VREF_MASK,
+	},
 	[ID_AD9467] = {
-		.id = CHIPID_AD9467,
-		.max_rate = 250000000UL,
-		.scale_table = ad9467_scale_table,
-		.num_scales = ARRAY_SIZE(ad9467_scale_table),
-		.channels = ad9467_channels,
-		.num_channels = ARRAY_SIZE(ad9467_channels),
+		.axi_adc_info = {
+			.id = CHIPID_AD9467,
+			.max_rate = 250000000UL,
+			.scale_table = ad9467_scale_table,
+			.num_scales = ARRAY_SIZE(ad9467_scale_table),
+			.channels = ad9467_channels,
+			.num_channels = ARRAY_SIZE(ad9467_channels),
+		},
+		.default_output_mode = AD9467_DEF_OUTPUT_MODE,
+		.vref_mask = AD9467_REG_VREF_MASK,
 	},
 };
 
 static int ad9467_get_scale(struct adi_axi_adc_conv *conv, int *val, int *val2)
 {
 	const struct adi_axi_adc_chip_info *info = conv->chip_info;
+	const struct ad9467_chip_info *info1 = to_ad9467_chip_info(info);
 	struct ad9467_state *st = adi_axi_adc_conv_priv(conv);
-	unsigned int i, vref_val, vref_mask;
+	unsigned int i, vref_val;
 
 	vref_val = ad9467_spi_read(st->spi, AN877_ADC_REG_VREF);
 
-	switch (info->id) {
-	case CHIPID_AD9467:
-		vref_mask = AD9467_REG_VREF_MASK;
-		break;
-	default:
-		vref_mask = 0xFFFF;
-		break;
-	}
-
-	vref_val &= vref_mask;
+	vref_val &= info1->vref_mask;
 
 	for (i = 0; i < info->num_scales; i++) {
 		if (vref_val == info->scale_table[i][1])
@@ -316,18 +378,6 @@ static int ad9467_preenable_setup(struct adi_axi_adc_conv *conv)
 	return ad9467_outputmode_set(st->spi, st->output_mode);
 }
 
-static int ad9467_setup(struct ad9467_state *st, unsigned int chip_id)
-{
-	switch (chip_id) {
-	case CHIPID_AD9467:
-		st->output_mode = AD9467_DEF_OUTPUT_MODE |
-				  AN877_ADC_OUTPUT_MODE_TWOS_COMPLEMENT;
-		return 0;
-	default:
-		return -EINVAL;
-	}
-}
-
 static void ad9467_clk_disable(void *data)
 {
 	struct ad9467_state *st = data;
@@ -337,7 +387,7 @@ static void ad9467_clk_disable(void *data)
 
 static int ad9467_probe(struct spi_device *spi)
 {
-	const struct adi_axi_adc_chip_info *info;
+	const struct ad9467_chip_info *info;
 	struct adi_axi_adc_conv *conv;
 	struct ad9467_state *st;
 	unsigned int id;
@@ -386,11 +436,12 @@ static int ad9467_probe(struct spi_device *spi)
 
 	spi_set_drvdata(spi, st);
 
-	conv->chip_info = info;
+	conv->chip_info = &info->axi_adc_info;
 
 	id = ad9467_spi_read(spi, AN877_ADC_REG_CHIP_ID);
 	if (id != conv->chip_info->id) {
-		dev_err(&spi->dev, "Unrecognized CHIP_ID 0x%X\n", id);
+		dev_err(&spi->dev, "Mismatch CHIP_ID, got 0x%X, expected 0x%X\n",
+			id, conv->chip_info->id);
 		return -ENODEV;
 	}
 
@@ -399,10 +450,15 @@ static int ad9467_probe(struct spi_device *spi)
 	conv->read_raw = ad9467_read_raw;
 	conv->preenable_setup = ad9467_preenable_setup;
 
-	return ad9467_setup(st, id);
+	st->output_mode = info->default_output_mode |
+			  AN877_ADC_OUTPUT_MODE_TWOS_COMPLEMENT;
+
+	return 0;
 }
 
 static const struct of_device_id ad9467_of_match[] = {
+	{ .compatible = "adi,ad9265", .data = &ad9467_chip_tbl[ID_AD9265], },
+	{ .compatible = "adi,ad9434", .data = &ad9467_chip_tbl[ID_AD9434], },
 	{ .compatible = "adi,ad9467", .data = &ad9467_chip_tbl[ID_AD9467], },
 	{}
 };
diff --git a/drivers/iio/adc/adi-axi-adc.c b/drivers/iio/adc/adi-axi-adc.c
index 86b6b65916ee..9109da2d2e15 100644
--- a/drivers/iio/adc/adi-axi-adc.c
+++ b/drivers/iio/adc/adi-axi-adc.c
@@ -276,7 +276,7 @@ static struct attribute *adi_axi_adc_attributes[] = {
 static umode_t axi_adc_attr_is_visible(struct kobject *kobj,
 				       struct attribute *attr, int n)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct adi_axi_adc_state *st = iio_priv(indio_dev);
 	struct adi_axi_adc_conv *conv = &st->client->conv;
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index de9583d6cddd..b917a4714a9c 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -884,7 +884,7 @@ static bool at91_adc_current_chan_is_touch(struct iio_dev *indio_dev)
 			       AT91_SAMA5D2_MAX_CHAN_IDX + 1);
 }
 
-static int at91_adc_buffer_preenable(struct iio_dev *indio_dev)
+static int at91_adc_buffer_prepare(struct iio_dev *indio_dev)
 {
 	int ret;
 	u8 bit;
@@ -901,7 +901,7 @@ static int at91_adc_buffer_preenable(struct iio_dev *indio_dev)
 	/* we continue with the triggered buffer */
 	ret = at91_adc_dma_start(indio_dev);
 	if (ret) {
-		dev_err(&indio_dev->dev, "buffer postenable failed\n");
+		dev_err(&indio_dev->dev, "buffer prepare failed\n");
 		return ret;
 	}
 
@@ -989,7 +989,6 @@ static int at91_adc_buffer_postdisable(struct iio_dev *indio_dev)
 }
 
 static const struct iio_buffer_setup_ops at91_buffer_setup_ops = {
-	.preenable = &at91_adc_buffer_preenable,
 	.postdisable = &at91_adc_buffer_postdisable,
 };
 
@@ -1563,6 +1562,7 @@ static void at91_adc_dma_disable(struct platform_device *pdev)
 static int at91_adc_set_watermark(struct iio_dev *indio_dev, unsigned int val)
 {
 	struct at91_adc_state *st = iio_priv(indio_dev);
+	int ret;
 
 	if (val > AT91_HWFIFO_MAX_SIZE)
 		return -EINVAL;
@@ -1586,7 +1586,15 @@ static int at91_adc_set_watermark(struct iio_dev *indio_dev, unsigned int val)
 	else if (val > 1)
 		at91_adc_dma_init(to_platform_device(&indio_dev->dev));
 
-	return 0;
+	/*
+	 * We can start the DMA only after setting the watermark and
+	 * having the DMA initialization completed
+	 */
+	ret = at91_adc_buffer_prepare(indio_dev);
+	if (ret)
+		at91_adc_dma_disable(to_platform_device(&indio_dev->dev));
+
+	return ret;
 }
 
 static int at91_adc_update_scan_mode(struct iio_dev *indio_dev,
@@ -1764,17 +1772,13 @@ static int at91_adc_probe(struct platform_device *pdev)
 	mutex_init(&st->lock);
 	INIT_WORK(&st->touch_st.workq, at91_adc_workq_handler);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -EINVAL;
+	st->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(st->base))
+		return PTR_ERR(st->base);
 
 	/* if we plan to use DMA, we need the physical address of the regs */
 	st->dma_st.phys_addr = res->start;
 
-	st->base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(st->base))
-		return PTR_ERR(st->base);
-
 	st->irq = platform_get_irq(pdev, 0);
 	if (st->irq <= 0) {
 		if (!st->irq)
diff --git a/drivers/iio/adc/axp20x_adc.c b/drivers/iio/adc/axp20x_adc.c
index 798ff2d89691..3e0c0233b431 100644
--- a/drivers/iio/adc/axp20x_adc.c
+++ b/drivers/iio/adc/axp20x_adc.c
@@ -9,10 +9,10 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
+#include <linux/mod_devicetable.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
 #include <linux/thermal.h>
 
@@ -67,7 +67,7 @@ struct axp_data;
 
 struct axp20x_adc_iio {
 	struct regmap		*regmap;
-	struct axp_data		*data;
+	const struct axp_data	*data;
 };
 
 enum axp20x_adc_channel_v {
@@ -670,15 +670,15 @@ static int axp20x_probe(struct platform_device *pdev)
 	info->regmap = axp20x_dev->regmap;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
-	if (!pdev->dev.of_node) {
+	if (!dev_fwnode(&pdev->dev)) {
 		const struct platform_device_id *id;
 
 		id = platform_get_device_id(pdev);
-		info->data = (struct axp_data *)id->driver_data;
+		info->data = (const struct axp_data *)id->driver_data;
 	} else {
 		struct device *dev = &pdev->dev;
 
-		info->data = (struct axp_data *)of_device_get_match_data(dev);
+		info->data = device_get_match_data(dev);
 	}
 
 	indio_dev->name = platform_get_device_id(pdev)->name;
@@ -742,7 +742,7 @@ static int axp20x_remove(struct platform_device *pdev)
 static struct platform_driver axp20x_adc_driver = {
 	.driver = {
 		.name = "axp20x-adc",
-		.of_match_table = of_match_ptr(axp20x_adc_of_match),
+		.of_match_table = axp20x_adc_of_match,
 	},
 	.id_table = axp20x_adc_id_match,
 	.probe = axp20x_probe,
diff --git a/drivers/iio/adc/bcm_iproc_adc.c b/drivers/iio/adc/bcm_iproc_adc.c
index 936da32faa9d..44e1e53ada72 100644
--- a/drivers/iio/adc/bcm_iproc_adc.c
+++ b/drivers/iio/adc/bcm_iproc_adc.c
@@ -4,7 +4,7 @@
  */
 
 #include <linux/module.h>
-#include <linux/of.h>
+#include <linux/mod_devicetable.h>
 #include <linux/io.h>
 #include <linux/clk.h>
 #include <linux/mfd/syscon.h>
@@ -617,7 +617,7 @@ static struct platform_driver iproc_adc_driver = {
 	.remove	= iproc_adc_remove,
 	.driver	= {
 		.name	= "iproc-static-adc",
-		.of_match_table = of_match_ptr(iproc_adc_of_match),
+		.of_match_table = iproc_adc_of_match,
 	},
 };
 module_platform_driver(iproc_adc_driver);
diff --git a/drivers/iio/adc/envelope-detector.c b/drivers/iio/adc/envelope-detector.c
index 2a4fd3bb64cf..d73eac36153f 100644
--- a/drivers/iio/adc/envelope-detector.c
+++ b/drivers/iio/adc/envelope-detector.c
@@ -348,11 +348,9 @@ static int envelope_detector_probe(struct platform_device *pdev)
 	indio_dev->num_channels = 1;
 
 	env->dac = devm_iio_channel_get(dev, "dac");
-	if (IS_ERR(env->dac)) {
-		if (PTR_ERR(env->dac) != -EPROBE_DEFER)
-			dev_err(dev, "failed to get dac input channel\n");
-		return PTR_ERR(env->dac);
-	}
+	if (IS_ERR(env->dac))
+		return dev_err_probe(dev, PTR_ERR(env->dac),
+				     "failed to get dac input channel\n");
 
 	env->comp_irq = platform_get_irq_byname(pdev, "comp");
 	if (env->comp_irq < 0)
@@ -360,11 +358,9 @@ static int envelope_detector_probe(struct platform_device *pdev)
 
 	ret = devm_request_irq(dev, env->comp_irq, envelope_detector_comp_isr,
 			       0, "envelope-detector", env);
-	if (ret) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(dev, "failed to request interrupt\n");
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to request interrupt\n");
+
 	env->comp_irq_trigger = irq_get_trigger_type(env->comp_irq);
 	if (env->comp_irq_trigger & IRQF_TRIGGER_RISING)
 		env->comp_irq_trigger_inv |= IRQF_TRIGGER_FALLING;
diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c
index 7d23b6c33284..99f4404e9fd1 100644
--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -138,6 +138,16 @@ struct exynos_adc {
 	bool			read_ts;
 	u32			ts_x;
 	u32			ts_y;
+
+	/*
+	 * Lock to protect from potential concurrent access to the
+	 * completion callback during a manual conversion. For this driver
+	 * a wait-callback is used to wait for the conversion result,
+	 * so in the meantime no other read request (or conversion start)
+	 * must be performed, otherwise it would interfere with the
+	 * current conversion result.
+	 */
+	struct mutex		lock;
 };
 
 struct exynos_adc_data {
@@ -542,7 +552,7 @@ static int exynos_read_raw(struct iio_dev *indio_dev,
 		return -EINVAL;
 	}
 
-	mutex_lock(&indio_dev->mlock);
+	mutex_lock(&info->lock);
 	reinit_completion(&info->completion);
 
 	/* Select the channel to be used and Trigger conversion */
@@ -562,7 +572,7 @@ static int exynos_read_raw(struct iio_dev *indio_dev,
 		ret = IIO_VAL_INT;
 	}
 
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&info->lock);
 
 	return ret;
 }
@@ -573,7 +583,7 @@ static int exynos_read_s3c64xx_ts(struct iio_dev *indio_dev, int *x, int *y)
 	unsigned long timeout;
 	int ret;
 
-	mutex_lock(&indio_dev->mlock);
+	mutex_lock(&info->lock);
 	info->read_ts = true;
 
 	reinit_completion(&info->completion);
@@ -598,7 +608,7 @@ static int exynos_read_s3c64xx_ts(struct iio_dev *indio_dev, int *x, int *y)
 	}
 
 	info->read_ts = false;
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&info->lock);
 
 	return ret;
 }
@@ -844,13 +854,9 @@ static int exynos_adc_probe(struct platform_device *pdev)
 	}
 
 	info->vdd = devm_regulator_get(&pdev->dev, "vdd");
-	if (IS_ERR(info->vdd)) {
-		if (PTR_ERR(info->vdd) != -EPROBE_DEFER)
-			dev_err(&pdev->dev,
-				"failed getting regulator, err = %ld\n",
-				PTR_ERR(info->vdd));
-		return PTR_ERR(info->vdd);
-	}
+	if (IS_ERR(info->vdd))
+		return dev_err_probe(&pdev->dev, PTR_ERR(info->vdd),
+				     "failed getting regulator");
 
 	ret = regulator_enable(info->vdd);
 	if (ret)
@@ -872,6 +878,8 @@ static int exynos_adc_probe(struct platform_device *pdev)
 	indio_dev->channels = exynos_adc_iio_channels;
 	indio_dev->num_channels = info->data->num_channels;
 
+	mutex_init(&info->lock);
+
 	ret = request_irq(info->irq, exynos_adc_isr,
 					0, dev_name(&pdev->dev), info);
 	if (ret < 0) {
diff --git a/drivers/iio/adc/fsl-imx25-gcq.c b/drivers/iio/adc/fsl-imx25-gcq.c
index 8cb51cf7a816..ab5139e911c3 100644
--- a/drivers/iio/adc/fsl-imx25-gcq.c
+++ b/drivers/iio/adc/fsl-imx25-gcq.c
@@ -40,6 +40,15 @@ struct mx25_gcq_priv {
 	int irq;
 	struct regulator *vref[4];
 	u32 channel_vref_mv[MX25_NUM_CFGS];
+	/*
+	 * Lock to protect the device state during a potential concurrent
+	 * read access from userspace. Reading a raw value requires a sequence
+	 * of register writes, then a wait for a completion callback,
+	 * and finally a register read, during which userspace could issue
+	 * another read request. This lock protects a read access from
+	 * ocurring before another one has finished.
+	 */
+	struct mutex lock;
 };
 
 #define MX25_CQG_CHAN(chan, id) {\
@@ -137,9 +146,9 @@ static int mx25_gcq_read_raw(struct iio_dev *indio_dev,
 
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
-		mutex_lock(&indio_dev->mlock);
+		mutex_lock(&priv->lock);
 		ret = mx25_gcq_get_raw_value(&indio_dev->dev, chan, priv, val);
-		mutex_unlock(&indio_dev->mlock);
+		mutex_unlock(&priv->lock);
 		return ret;
 
 	case IIO_CHAN_INFO_SCALE:
@@ -314,6 +323,8 @@ static int mx25_gcq_probe(struct platform_device *pdev)
 		return PTR_ERR(priv->regs);
 	}
 
+	mutex_init(&priv->lock);
+
 	init_completion(&priv->completed);
 
 	ret = mx25_gcq_setup_cfgs(pdev, priv);
diff --git a/drivers/iio/adc/ltc2497-core.c b/drivers/iio/adc/ltc2497-core.c
index 9b8fd9c32364..2a485c8a1940 100644
--- a/drivers/iio/adc/ltc2497-core.c
+++ b/drivers/iio/adc/ltc2497-core.c
@@ -180,13 +180,9 @@ int ltc2497core_probe(struct device *dev, struct iio_dev *indio_dev)
 		return ret;
 
 	ddata->ref = devm_regulator_get(dev, "vref");
-	if (IS_ERR(ddata->ref)) {
-		if (PTR_ERR(ddata->ref) != -EPROBE_DEFER)
-			dev_err(dev, "Failed to get vref regulator: %pe\n",
-				ddata->ref);
-
-		return PTR_ERR(ddata->ref);
-	}
+	if (IS_ERR(ddata->ref))
+		return dev_err_probe(dev, PTR_ERR(ddata->ref),
+				     "Failed to get vref regulator\n");
 
 	ret = regulator_enable(ddata->ref);
 	if (ret < 0) {
diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c
index 1a9189ba69ae..e03988698755 100644
--- a/drivers/iio/adc/meson_saradc.c
+++ b/drivers/iio/adc/meson_saradc.c
@@ -719,11 +719,8 @@ static int meson_sar_adc_temp_sensor_init(struct iio_dev *indio_dev)
 		if (ret == -ENODEV)
 			return 0;
 
-		if (ret != -EPROBE_DEFER)
-			dev_err(indio_dev->dev.parent,
-				"failed to get temperature_calib cell\n");
-
-		return ret;
+		return dev_err_probe(indio_dev->dev.parent, ret,
+				     "failed to get temperature_calib cell\n");
 	}
 
 	priv->tsc_regmap =
@@ -1153,16 +1150,13 @@ static const struct of_device_id meson_sar_adc_of_match[] = {
 	{
 		.compatible = "amlogic,meson8-saradc",
 		.data = &meson_sar_adc_meson8_data,
-	},
-	{
+	}, {
 		.compatible = "amlogic,meson8b-saradc",
 		.data = &meson_sar_adc_meson8b_data,
-	},
-	{
+	}, {
 		.compatible = "amlogic,meson8m2-saradc",
 		.data = &meson_sar_adc_meson8m2_data,
-	},
-	{
+	}, {
 		.compatible = "amlogic,meson-gxbb-saradc",
 		.data = &meson_sar_adc_gxbb_data,
 	}, {
@@ -1178,7 +1172,7 @@ static const struct of_device_id meson_sar_adc_of_match[] = {
 		.compatible = "amlogic,meson-g12a-saradc",
 		.data = &meson_sar_adc_g12a_data,
 	},
-	{},
+	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, meson_sar_adc_of_match);
 
diff --git a/drivers/iio/adc/palmas_gpadc.c b/drivers/iio/adc/palmas_gpadc.c
index 1ca6570be66a..889b88768b63 100644
--- a/drivers/iio/adc/palmas_gpadc.c
+++ b/drivers/iio/adc/palmas_gpadc.c
@@ -834,18 +834,7 @@ static struct platform_driver palmas_gpadc_driver = {
 		.of_match_table = of_palmas_gpadc_match_tbl,
 	},
 };
-
-static int __init palmas_gpadc_init(void)
-{
-	return platform_driver_register(&palmas_gpadc_driver);
-}
-module_init(palmas_gpadc_init);
-
-static void __exit palmas_gpadc_exit(void)
-{
-	platform_driver_unregister(&palmas_gpadc_driver);
-}
-module_exit(palmas_gpadc_exit);
+module_platform_driver(palmas_gpadc_driver);
 
 MODULE_DESCRIPTION("palmas GPADC driver");
 MODULE_AUTHOR("Pradeep Goudagunta<pgoudagunta@nvidia.com>");
diff --git a/drivers/iio/adc/rcar-gyroadc.c b/drivers/iio/adc/rcar-gyroadc.c
index d2c1419e72a0..9f38cf3c7dc2 100644
--- a/drivers/iio/adc/rcar-gyroadc.c
+++ b/drivers/iio/adc/rcar-gyroadc.c
@@ -357,7 +357,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 			num_channels = ARRAY_SIZE(rcar_gyroadc_iio_channels_3);
 			break;
 		default:
-			return -EINVAL;
+			goto err_e_inval;
 		}
 
 		/*
@@ -374,7 +374,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 				dev_err(dev,
 					"Failed to get child reg property of ADC \"%pOFn\".\n",
 					child);
-				return ret;
+				goto err_of_node_put;
 			}
 
 			/* Channel number is too high. */
@@ -382,7 +382,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 				dev_err(dev,
 					"Only %i channels supported with %pOFn, but reg = <%i>.\n",
 					num_channels, child, reg);
-				return -EINVAL;
+				goto err_e_inval;
 			}
 		}
 
@@ -391,7 +391,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 			dev_err(dev,
 				"Channel %i uses different ADC mode than the rest.\n",
 				reg);
-			return -EINVAL;
+			goto err_e_inval;
 		}
 
 		/* Channel is valid, grab the regulator. */
@@ -401,7 +401,8 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 		if (IS_ERR(vref)) {
 			dev_dbg(dev, "Channel %i 'vref' supply not connected.\n",
 				reg);
-			return PTR_ERR(vref);
+			ret = PTR_ERR(vref);
+			goto err_of_node_put;
 		}
 
 		priv->vref[reg] = vref;
@@ -425,8 +426,10 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 		 * attached to the GyroADC at a time, so if we found it,
 		 * we can stop parsing here.
 		 */
-		if (childmode == RCAR_GYROADC_MODE_SELECT_1_MB88101A)
+		if (childmode == RCAR_GYROADC_MODE_SELECT_1_MB88101A) {
+			of_node_put(child);
 			break;
+		}
 	}
 
 	if (first) {
@@ -435,6 +438,12 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 	}
 
 	return 0;
+
+err_e_inval:
+	ret = -EINVAL;
+err_of_node_put:
+	of_node_put(child);
+	return ret;
 }
 
 static void rcar_gyroadc_deinit_supplies(struct iio_dev *indio_dev)
@@ -495,12 +504,9 @@ static int rcar_gyroadc_probe(struct platform_device *pdev)
 		return PTR_ERR(priv->regs);
 
 	priv->clk = devm_clk_get(dev, "fck");
-	if (IS_ERR(priv->clk)) {
-		ret = PTR_ERR(priv->clk);
-		if (ret != -EPROBE_DEFER)
-			dev_err(dev, "Failed to get IF clock (ret=%i)\n", ret);
-		return ret;
-	}
+	if (IS_ERR(priv->clk))
+		return dev_err_probe(dev, PTR_ERR(priv->clk),
+				     "Failed to get IF clock\n");
 
 	ret = rcar_gyroadc_parse_subdevs(indio_dev);
 	if (ret)
diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c
index 0e2068ec068b..cd870c089182 100644
--- a/drivers/iio/adc/stm32-adc-core.c
+++ b/drivers/iio/adc/stm32-adc-core.c
@@ -582,11 +582,9 @@ static int stm32_adc_core_switches_probe(struct device *dev,
 	priv->syscfg = syscon_regmap_lookup_by_phandle(np, "st,syscfg");
 	if (IS_ERR(priv->syscfg)) {
 		ret = PTR_ERR(priv->syscfg);
-		if (ret != -ENODEV) {
-			if (ret != -EPROBE_DEFER)
-				dev_err(dev, "Can't probe syscfg: %d\n", ret);
-			return ret;
-		}
+		if (ret != -ENODEV)
+			return dev_err_probe(dev, ret, "Can't probe syscfg\n");
+
 		priv->syscfg = NULL;
 	}
 
@@ -596,12 +594,9 @@ static int stm32_adc_core_switches_probe(struct device *dev,
 		priv->booster = devm_regulator_get_optional(dev, "booster");
 		if (IS_ERR(priv->booster)) {
 			ret = PTR_ERR(priv->booster);
-			if (ret != -ENODEV) {
-				if (ret != -EPROBE_DEFER)
-					dev_err(dev, "can't get booster %d\n",
-						ret);
-				return ret;
-			}
+			if (ret != -ENODEV)
+				return dev_err_probe(dev, ret, "can't get booster\n");
+
 			priv->booster = NULL;
 		}
 	}
@@ -612,11 +607,9 @@ static int stm32_adc_core_switches_probe(struct device *dev,
 		priv->vdd = devm_regulator_get_optional(dev, "vdd");
 		if (IS_ERR(priv->vdd)) {
 			ret = PTR_ERR(priv->vdd);
-			if (ret != -ENODEV) {
-				if (ret != -EPROBE_DEFER)
-					dev_err(dev, "can't get vdd %d\n", ret);
-				return ret;
-			}
+			if (ret != -ENODEV)
+				return dev_err_probe(dev, ret, "can't get vdd\n");
+
 			priv->vdd = NULL;
 		}
 	}
@@ -669,42 +662,24 @@ static int stm32_adc_probe(struct platform_device *pdev)
 	priv->common.phys_base = res->start;
 
 	priv->vdda = devm_regulator_get(&pdev->dev, "vdda");
-	if (IS_ERR(priv->vdda)) {
-		ret = PTR_ERR(priv->vdda);
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "vdda get failed, %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(priv->vdda))
+		return dev_err_probe(&pdev->dev, PTR_ERR(priv->vdda),
+				     "vdda get failed\n");
 
 	priv->vref = devm_regulator_get(&pdev->dev, "vref");
-	if (IS_ERR(priv->vref)) {
-		ret = PTR_ERR(priv->vref);
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "vref get failed, %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(priv->vref))
+		return dev_err_probe(&pdev->dev, PTR_ERR(priv->vref),
+				     "vref get failed\n");
 
-	priv->aclk = devm_clk_get(&pdev->dev, "adc");
-	if (IS_ERR(priv->aclk)) {
-		ret = PTR_ERR(priv->aclk);
-		if (ret != -ENOENT) {
-			if (ret != -EPROBE_DEFER)
-				dev_err(&pdev->dev, "Can't get 'adc' clock\n");
-			return ret;
-		}
-		priv->aclk = NULL;
-	}
+	priv->aclk = devm_clk_get_optional(&pdev->dev, "adc");
+	if (IS_ERR(priv->aclk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(priv->aclk),
+				     "Can't get 'adc' clock\n");
 
-	priv->bclk = devm_clk_get(&pdev->dev, "bus");
-	if (IS_ERR(priv->bclk)) {
-		ret = PTR_ERR(priv->bclk);
-		if (ret != -ENOENT) {
-			if (ret != -EPROBE_DEFER)
-				dev_err(&pdev->dev, "Can't get 'bus' clock\n");
-			return ret;
-		}
-		priv->bclk = NULL;
-	}
+	priv->bclk = devm_clk_get_optional(&pdev->dev, "bus");
+	if (IS_ERR(priv->bclk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(priv->bclk),
+				     "Can't get 'bus' clock\n");
 
 	ret = stm32_adc_core_switches_probe(dev, priv);
 	if (ret)
@@ -794,6 +769,13 @@ static int stm32_adc_core_runtime_resume(struct device *dev)
 {
 	return stm32_adc_core_hw_start(dev);
 }
+
+static int stm32_adc_core_runtime_idle(struct device *dev)
+{
+	pm_runtime_mark_last_busy(dev);
+
+	return 0;
+}
 #endif
 
 static const struct dev_pm_ops stm32_adc_core_pm_ops = {
@@ -801,7 +783,7 @@ static const struct dev_pm_ops stm32_adc_core_pm_ops = {
 				pm_runtime_force_resume)
 	SET_RUNTIME_PM_OPS(stm32_adc_core_runtime_suspend,
 			   stm32_adc_core_runtime_resume,
-			   NULL)
+			   stm32_adc_core_runtime_idle)
 };
 
 static const struct stm32_adc_priv_cfg stm32f4_adc_priv_cfg = {
diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c
index 3eb9ebe8372f..b3f31f147347 100644
--- a/drivers/iio/adc/stm32-adc.c
+++ b/drivers/iio/adc/stm32-adc.c
@@ -1805,13 +1805,9 @@ static int stm32_adc_dma_request(struct device *dev, struct iio_dev *indio_dev)
 	adc->dma_chan = dma_request_chan(dev, "rx");
 	if (IS_ERR(adc->dma_chan)) {
 		ret = PTR_ERR(adc->dma_chan);
-		if (ret != -ENODEV) {
-			if (ret != -EPROBE_DEFER)
-				dev_err(dev,
-					"DMA channel request failed with %d\n",
-					ret);
-			return ret;
-		}
+		if (ret != -ENODEV)
+			return dev_err_probe(dev, ret,
+					     "DMA channel request failed with\n");
 
 		/* DMA is optional: fall back to IRQ mode */
 		adc->dma_chan = NULL;
diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c
index 5e10fb4f3704..c7e0109315f8 100644
--- a/drivers/iio/adc/stm32-dfsdm-adc.c
+++ b/drivers/iio/adc/stm32-dfsdm-adc.c
@@ -1473,13 +1473,9 @@ static int stm32_dfsdm_adc_init(struct device *dev, struct iio_dev *indio_dev)
 	/* Optionally request DMA */
 	ret = stm32_dfsdm_dma_request(dev, indio_dev);
 	if (ret) {
-		if (ret != -ENODEV) {
-			if (ret != -EPROBE_DEFER)
-				dev_err(dev,
-					"DMA channel request failed with %d\n",
-					ret);
-			return ret;
-		}
+		if (ret != -ENODEV)
+			return dev_err_probe(dev, ret,
+					     "DMA channel request failed with\n");
 
 		dev_dbg(dev, "No DMA support\n");
 		return 0;
diff --git a/drivers/iio/adc/stm32-dfsdm-core.c b/drivers/iio/adc/stm32-dfsdm-core.c
index 26e2011c5868..42a7377704a4 100644
--- a/drivers/iio/adc/stm32-dfsdm-core.c
+++ b/drivers/iio/adc/stm32-dfsdm-core.c
@@ -226,16 +226,13 @@ static int stm32_dfsdm_parse_of(struct platform_device *pdev,
 	if (!node)
 		return -EINVAL;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "Failed to get memory resource\n");
-		return -ENODEV;
-	}
-	priv->dfsdm.phys_base = res->start;
-	priv->dfsdm.base = devm_ioremap_resource(&pdev->dev, res);
+	priv->dfsdm.base = devm_platform_get_and_ioremap_resource(pdev, 0,
+							&res);
 	if (IS_ERR(priv->dfsdm.base))
 		return PTR_ERR(priv->dfsdm.base);
 
+	priv->dfsdm.phys_base = res->start;
+
 	/*
 	 * "dfsdm" clock is mandatory for DFSDM peripheral clocking.
 	 * "dfsdm" or "audio" clocks can be used as source clock for
@@ -243,12 +240,9 @@ static int stm32_dfsdm_parse_of(struct platform_device *pdev,
 	 * on use case.
 	 */
 	priv->clk = devm_clk_get(&pdev->dev, "dfsdm");
-	if (IS_ERR(priv->clk)) {
-		ret = PTR_ERR(priv->clk);
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "Failed to get clock (%d)\n", ret);
-		return ret;
-	}
+	if (IS_ERR(priv->clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(priv->clk),
+				     "Failed to get clock\n");
 
 	priv->aclk = devm_clk_get(&pdev->dev, "audio");
 	if (IS_ERR(priv->aclk))
diff --git a/drivers/iio/adc/ti-adc081c.c b/drivers/iio/adc/ti-adc081c.c
index cf63983a54d9..b64718daa201 100644
--- a/drivers/iio/adc/ti-adc081c.c
+++ b/drivers/iio/adc/ti-adc081c.c
@@ -19,7 +19,6 @@
 #include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
-#include <linux/acpi.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/buffer.h>
@@ -158,17 +157,7 @@ static int adc081c_probe(struct i2c_client *client,
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA))
 		return -EOPNOTSUPP;
 
-	if (ACPI_COMPANION(&client->dev)) {
-		const struct acpi_device_id *ad_id;
-
-		ad_id = acpi_match_device(client->dev.driver->acpi_match_table,
-					  &client->dev);
-		if (!ad_id)
-			return -ENODEV;
-		model = &adcxx1c_models[ad_id->driver_data];
-	} else {
-		model = &adcxx1c_models[id->driver_data];
-	}
+	model = &adcxx1c_models[id->driver_data];
 
 	iio = devm_iio_device_alloc(&client->dev, sizeof(*adc));
 	if (!iio)
@@ -243,21 +232,10 @@ static const struct of_device_id adc081c_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, adc081c_of_match);
 
-#ifdef CONFIG_ACPI
-static const struct acpi_device_id adc081c_acpi_match[] = {
-	{ "ADC081C", ADC081C },
-	{ "ADC101C", ADC101C },
-	{ "ADC121C", ADC121C },
-	{ }
-};
-MODULE_DEVICE_TABLE(acpi, adc081c_acpi_match);
-#endif
-
 static struct i2c_driver adc081c_driver = {
 	.driver = {
 		.name = "adc081c",
 		.of_match_table = adc081c_of_match,
-		.acpi_match_table = ACPI_PTR(adc081c_acpi_match),
 	},
 	.probe = adc081c_probe,
 	.remove = adc081c_remove,
diff --git a/drivers/iio/adc/ti-adc0832.c b/drivers/iio/adc/ti-adc0832.c
index c7a085dce1f4..0261b3cfc92b 100644
--- a/drivers/iio/adc/ti-adc0832.c
+++ b/drivers/iio/adc/ti-adc0832.c
@@ -29,6 +29,12 @@ struct adc0832 {
 	struct regulator *reg;
 	struct mutex lock;
 	u8 mux_bits;
+	/*
+	 * Max size needed: 16x 1 byte ADC data + 8 bytes timestamp
+	 * May be shorter if not all channels are enabled subject
+	 * to the timestamp remaining 8 byte aligned.
+	 */
+	u8 data[24] __aligned(8);
 
 	u8 tx_buf[2] ____cacheline_aligned;
 	u8 rx_buf[2];
@@ -200,7 +206,6 @@ static irqreturn_t adc0832_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct adc0832 *adc = iio_priv(indio_dev);
-	u8 data[24] = { }; /* 16x 1 byte ADC data + 8 bytes timestamp */
 	int scan_index;
 	int i = 0;
 
@@ -218,10 +223,10 @@ static irqreturn_t adc0832_trigger_handler(int irq, void *p)
 			goto out;
 		}
 
-		data[i] = ret;
+		adc->data[i] = ret;
 		i++;
 	}
-	iio_push_to_buffers_with_timestamp(indio_dev, data,
+	iio_push_to_buffers_with_timestamp(indio_dev, adc->data,
 					   iio_get_time_ns(indio_dev));
 out:
 	mutex_unlock(&adc->lock);
diff --git a/drivers/iio/adc/ti-adc108s102.c b/drivers/iio/adc/ti-adc108s102.c
index 9b9b27415c93..183b2245e89b 100644
--- a/drivers/iio/adc/ti-adc108s102.c
+++ b/drivers/iio/adc/ti-adc108s102.c
@@ -20,6 +20,7 @@
 #include <linux/iio/trigger_consumer.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/property.h>
 #include <linux/regulator/consumer.h>
 #include <linux/spi/spi.h>
@@ -299,13 +300,11 @@ static int adc108s102_remove(struct spi_device *spi)
 	return 0;
 }
 
-#ifdef CONFIG_OF
 static const struct of_device_id adc108s102_of_match[] = {
 	{ .compatible = "ti,adc108s102" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, adc108s102_of_match);
-#endif
 
 #ifdef CONFIG_ACPI
 static const struct acpi_device_id adc108s102_acpi_ids[] = {
@@ -324,7 +323,7 @@ MODULE_DEVICE_TABLE(spi, adc108s102_id);
 static struct spi_driver adc108s102_driver = {
 	.driver = {
 		.name   = "adc108s102",
-		.of_match_table = of_match_ptr(adc108s102_of_match),
+		.of_match_table = adc108s102_of_match,
 		.acpi_match_table = ACPI_PTR(adc108s102_acpi_ids),
 	},
 	.probe		= adc108s102_probe,
diff --git a/drivers/iio/adc/ti-adc12138.c b/drivers/iio/adc/ti-adc12138.c
index e485719cd2c4..fcd5d39dd03e 100644
--- a/drivers/iio/adc/ti-adc12138.c
+++ b/drivers/iio/adc/ti-adc12138.c
@@ -47,6 +47,12 @@ struct adc12138 {
 	struct completion complete;
 	/* The number of cclk periods for the S/H's acquisition time */
 	unsigned int acquisition_time;
+	/*
+	 * Maximum size needed: 16x 2 bytes ADC data + 8 bytes timestamp.
+	 * Less may be need if not all channels are enabled, as long as
+	 * the 8 byte alignment of the timestamp is maintained.
+	 */
+	__be16 data[20] __aligned(8);
 
 	u8 tx_buf[2] ____cacheline_aligned;
 	u8 rx_buf[2];
@@ -329,7 +335,6 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct adc12138 *adc = iio_priv(indio_dev);
-	__be16 data[20] = { }; /* 16x 2 bytes ADC data + 8 bytes timestamp */
 	__be16 trash;
 	int ret;
 	int scan_index;
@@ -345,7 +350,7 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p)
 		reinit_completion(&adc->complete);
 
 		ret = adc12138_start_and_read_conv(adc, scan_chan,
-						   i ? &data[i - 1] : &trash);
+					i ? &adc->data[i - 1] : &trash);
 		if (ret) {
 			dev_warn(&adc->spi->dev,
 				 "failed to start conversion\n");
@@ -362,7 +367,7 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p)
 	}
 
 	if (i) {
-		ret = adc12138_read_conv_data(adc, &data[i - 1]);
+		ret = adc12138_read_conv_data(adc, &adc->data[i - 1]);
 		if (ret) {
 			dev_warn(&adc->spi->dev,
 				 "failed to get conversion data\n");
@@ -370,7 +375,7 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p)
 		}
 	}
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data,
+	iio_push_to_buffers_with_timestamp(indio_dev, adc->data,
 					   iio_get_time_ns(indio_dev));
 out:
 	mutex_unlock(&adc->lock);
diff --git a/drivers/iio/adc/ti-adc128s052.c b/drivers/iio/adc/ti-adc128s052.c
index e86f55ce093f..3143f35a6509 100644
--- a/drivers/iio/adc/ti-adc128s052.c
+++ b/drivers/iio/adc/ti-adc128s052.c
@@ -13,6 +13,7 @@
 #include <linux/err.h>
 #include <linux/spi/spi.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/iio/iio.h>
 #include <linux/property.h>
 #include <linux/regulator/consumer.h>
@@ -220,7 +221,7 @@ MODULE_DEVICE_TABLE(acpi, adc128_acpi_match);
 static struct spi_driver adc128_driver = {
 	.driver = {
 		.name = "adc128s052",
-		.of_match_table = of_match_ptr(adc128_of_match),
+		.of_match_table = adc128_of_match,
 		.acpi_match_table = ACPI_PTR(adc128_acpi_match),
 	},
 	.probe = adc128_probe,
diff --git a/drivers/iio/afe/iio-rescale.c b/drivers/iio/afe/iio-rescale.c
index 69c0f277ada0..e42ea2b1707d 100644
--- a/drivers/iio/afe/iio-rescale.c
+++ b/drivers/iio/afe/iio-rescale.c
@@ -276,11 +276,9 @@ static int rescale_probe(struct platform_device *pdev)
 	int ret;
 
 	source = devm_iio_channel_get(dev, NULL);
-	if (IS_ERR(source)) {
-		if (PTR_ERR(source) != -EPROBE_DEFER)
-			dev_err(dev, "failed to get source channel\n");
-		return PTR_ERR(source);
-	}
+	if (IS_ERR(source))
+		return dev_err_probe(dev, PTR_ERR(source),
+				     "failed to get source channel\n");
 
 	sizeof_ext_info = iio_get_channel_ext_info_count(source);
 	if (sizeof_ext_info) {
diff --git a/drivers/iio/amplifiers/Kconfig b/drivers/iio/amplifiers/Kconfig
index 9b02c9a2bc8a..5eb1357a9c78 100644
--- a/drivers/iio/amplifiers/Kconfig
+++ b/drivers/iio/amplifiers/Kconfig
@@ -18,6 +18,7 @@ config AD8366
 	    AD8366 Dual-Digital Variable Gain Amplifier (VGA)
 	    ADA4961 BiCMOS RF Digital Gain Amplifier (DGA)
 	    ADL5240 Digitally controlled variable gain amplifier (VGA)
+	    HMC1119 0.25 dB LSB, 7-Bit, Silicon Digital Attenuator
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad8366.
diff --git a/drivers/iio/amplifiers/hmc425a.c b/drivers/iio/amplifiers/hmc425a.c
index 582708924e4f..9efa692151f0 100644
--- a/drivers/iio/amplifiers/hmc425a.c
+++ b/drivers/iio/amplifiers/hmc425a.c
@@ -201,12 +201,9 @@ static int hmc425a_probe(struct platform_device *pdev)
 	st->gain = st->chip_info->default_gain;
 
 	st->gpios = devm_gpiod_get_array(&pdev->dev, "ctrl", GPIOD_OUT_LOW);
-	if (IS_ERR(st->gpios)) {
-		ret = PTR_ERR(st->gpios);
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "failed to get gpios\n");
-		return ret;
-	}
+	if (IS_ERR(st->gpios))
+		return dev_err_probe(&pdev->dev, PTR_ERR(st->gpios),
+				     "failed to get gpios\n");
 
 	if (st->gpios->ndescs != st->chip_info->num_gpios) {
 		dev_err(&pdev->dev, "%d GPIOs needed to operate\n",
diff --git a/drivers/iio/buffer/Kconfig b/drivers/iio/buffer/Kconfig
index 63f265c8b466..047b931591a9 100644
--- a/drivers/iio/buffer/Kconfig
+++ b/drivers/iio/buffer/Kconfig
@@ -11,7 +11,7 @@ config IIO_BUFFER_CB
 	  usage.  That is, those where the data is pushed to the consumer.
 
 config IIO_BUFFER_DMA
-	tristate
+	tristate "Industrial I/O DMA buffer infrastructure"
 	help
 	  Provides the generic IIO DMA buffer infrastructure that can be used by
 	  drivers for devices with DMA support to implement the IIO buffer.
@@ -20,13 +20,13 @@ config IIO_BUFFER_DMA
 	  infrastructure.
 
 config IIO_BUFFER_DMAENGINE
-	tristate
+	tristate "Industrial I/O DMA buffer integration with DMAEngine"
 	select IIO_BUFFER_DMA
 	help
 	  Provides a bonding of the generic IIO DMA buffer infrastructure with the
-	  DMAengine framework. This can be used by converter drivers with a DMA port
+	  DMAEngine framework. This can be used by converter drivers with a DMA port
 	  connected to an external DMA controller which is supported by the
-	  DMAengine framework.
+	  DMAEngine framework.
 
 	  Should be selected by drivers that want to use this functionality.
 
@@ -48,7 +48,7 @@ config IIO_KFIFO_BUF
 	  often to read from the buffer.
 
 config IIO_TRIGGERED_BUFFER
-	tristate
+	tristate "Industrial I/O triggered buffer support"
 	select IIO_TRIGGER
 	select IIO_KFIFO_BUF
 	help
diff --git a/drivers/iio/buffer/industrialio-buffer-dmaengine.c b/drivers/iio/buffer/industrialio-buffer-dmaengine.c
index 6dedf12b69a4..93b4e9e6bb55 100644
--- a/drivers/iio/buffer/industrialio-buffer-dmaengine.c
+++ b/drivers/iio/buffer/industrialio-buffer-dmaengine.c
@@ -45,7 +45,8 @@ static struct dmaengine_buffer *iio_buffer_to_dmaengine_buffer(
 	return container_of(buffer, struct dmaengine_buffer, queue.buffer);
 }
 
-static void iio_dmaengine_buffer_block_done(void *data)
+static void iio_dmaengine_buffer_block_done(void *data,
+		const struct dmaengine_result *result)
 {
 	struct iio_dma_buffer_block *block = data;
 	unsigned long flags;
@@ -53,6 +54,7 @@ static void iio_dmaengine_buffer_block_done(void *data)
 	spin_lock_irqsave(&block->queue->list_lock, flags);
 	list_del(&block->head);
 	spin_unlock_irqrestore(&block->queue->list_lock, flags);
+	block->bytes_used -= result->residue;
 	iio_dma_buffer_block_done(block);
 }
 
@@ -74,7 +76,7 @@ static int iio_dmaengine_buffer_submit_block(struct iio_dma_buffer_queue *queue,
 	if (!desc)
 		return -ENOMEM;
 
-	desc->callback = iio_dmaengine_buffer_block_done;
+	desc->callback_result = iio_dmaengine_buffer_block_done;
 	desc->callback_param = block;
 
 	cookie = dmaengine_submit(desc);
@@ -157,7 +159,7 @@ static const struct attribute *iio_dmaengine_buffer_attrs[] = {
  * Once done using the buffer iio_dmaengine_buffer_free() should be used to
  * release it.
  */
-struct iio_buffer *iio_dmaengine_buffer_alloc(struct device *dev,
+static struct iio_buffer *iio_dmaengine_buffer_alloc(struct device *dev,
 	const char *channel)
 {
 	struct dmaengine_buffer *dmaengine_buffer;
@@ -209,7 +211,6 @@ err_free:
 	kfree(dmaengine_buffer);
 	return ERR_PTR(ret);
 }
-EXPORT_SYMBOL(iio_dmaengine_buffer_alloc);
 
 /**
  * iio_dmaengine_buffer_free() - Free dmaengine buffer
@@ -217,7 +218,7 @@ EXPORT_SYMBOL(iio_dmaengine_buffer_alloc);
  *
  * Frees a buffer previously allocated with iio_dmaengine_buffer_alloc().
  */
-void iio_dmaengine_buffer_free(struct iio_buffer *buffer)
+static void iio_dmaengine_buffer_free(struct iio_buffer *buffer)
 {
 	struct dmaengine_buffer *dmaengine_buffer =
 		iio_buffer_to_dmaengine_buffer(buffer);
@@ -227,7 +228,6 @@ void iio_dmaengine_buffer_free(struct iio_buffer *buffer)
 
 	iio_buffer_put(buffer);
 }
-EXPORT_SYMBOL_GPL(iio_dmaengine_buffer_free);
 
 static void __devm_iio_dmaengine_buffer_free(struct device *dev, void *res)
 {
diff --git a/drivers/iio/chemical/ams-iaq-core.c b/drivers/iio/chemical/ams-iaq-core.c
index 8c1b64fd424a..97be3669c554 100644
--- a/drivers/iio/chemical/ams-iaq-core.c
+++ b/drivers/iio/chemical/ams-iaq-core.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/mutex.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
@@ -177,7 +178,7 @@ MODULE_DEVICE_TABLE(of, ams_iaqcore_dt_ids);
 static struct i2c_driver ams_iaqcore_driver = {
 	.driver = {
 		.name	= "ams-iaq-core",
-		.of_match_table = of_match_ptr(ams_iaqcore_dt_ids),
+		.of_match_table = ams_iaqcore_dt_ids,
 	},
 	.probe = ams_iaqcore_probe,
 	.id_table = ams_iaqcore_id,
diff --git a/drivers/iio/chemical/atlas-ezo-sensor.c b/drivers/iio/chemical/atlas-ezo-sensor.c
index 8b72bb012363..b1bacfe3c3ce 100644
--- a/drivers/iio/chemical/atlas-ezo-sensor.c
+++ b/drivers/iio/chemical/atlas-ezo-sensor.c
@@ -16,10 +16,13 @@
 #include <linux/iio/iio.h>
 
 #define ATLAS_EZO_DRV_NAME		"atlas-ezo-sensor"
-#define ATLAS_CO2_INT_TIME_IN_MS	950
+#define ATLAS_INT_TIME_IN_MS		950
+#define ATLAS_INT_HUM_TIME_IN_MS	350
 
 enum {
 	ATLAS_CO2_EZO,
+	ATLAS_O2_EZO,
+	ATLAS_HUM_EZO,
 };
 
 struct atlas_ezo_device {
@@ -38,15 +41,37 @@ struct atlas_ezo_data {
 	u8 buffer[8];
 };
 
+#define ATLAS_CONCENTRATION_CHANNEL(_modifier) \
+	{ \
+		.type = IIO_CONCENTRATION, \
+		.modified = 1,\
+		.channel2 = _modifier, \
+		.info_mask_separate = \
+			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), \
+		.scan_index = 0, \
+		.scan_type =  { \
+			.sign = 'u', \
+			.realbits = 32, \
+			.storagebits = 32, \
+			.endianness = IIO_CPU, \
+		}, \
+	}
+
 static const struct iio_chan_spec atlas_co2_ezo_channels[] = {
+	ATLAS_CONCENTRATION_CHANNEL(IIO_MOD_CO2),
+};
+
+static const struct iio_chan_spec atlas_o2_ezo_channels[] = {
+	ATLAS_CONCENTRATION_CHANNEL(IIO_MOD_O2),
+};
+
+static const struct iio_chan_spec atlas_hum_ezo_channels[] = {
 	{
-		.type = IIO_CONCENTRATION,
-		.modified = 1,
-		.channel2 = IIO_MOD_CO2,
+		.type = IIO_HUMIDITYRELATIVE,
 		.info_mask_separate =
 			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
 		.scan_index = 0,
-		.scan_type = {
+		.scan_type =  {
 			.sign = 'u',
 			.realbits = 32,
 			.storagebits = 32,
@@ -59,10 +84,30 @@ static struct atlas_ezo_device atlas_ezo_devices[] = {
 	[ATLAS_CO2_EZO] = {
 		.channels = atlas_co2_ezo_channels,
 		.num_channels = 1,
-		.delay = ATLAS_CO2_INT_TIME_IN_MS,
+		.delay = ATLAS_INT_TIME_IN_MS,
+	},
+	[ATLAS_O2_EZO] = {
+		.channels = atlas_o2_ezo_channels,
+		.num_channels = 1,
+		.delay = ATLAS_INT_TIME_IN_MS,
+	},
+	[ATLAS_HUM_EZO] = {
+		.channels = atlas_hum_ezo_channels,
+		.num_channels = 1,
+		.delay = ATLAS_INT_HUM_TIME_IN_MS,
 	},
 };
 
+static void atlas_ezo_sanitize(char *buf)
+{
+	char *ptr = strchr(buf, '.');
+
+	if (!ptr)
+		return;
+
+	memmove(ptr, ptr + 1, strlen(ptr));
+}
+
 static int atlas_ezo_read_raw(struct iio_dev *indio_dev,
 			  struct iio_chan_spec const *chan,
 			  int *val, int *val2, long mask)
@@ -96,6 +141,9 @@ static int atlas_ezo_read_raw(struct iio_dev *indio_dev,
 			return -EBUSY;
 		}
 
+		/* removing floating point for fixed number representation */
+		atlas_ezo_sanitize(data->buffer + 2);
+
 		ret = kstrtol(data->buffer + 1, 10, &tmp);
 
 		*val = tmp;
@@ -105,9 +153,27 @@ static int atlas_ezo_read_raw(struct iio_dev *indio_dev,
 		return ret ? ret : IIO_VAL_INT;
 	}
 	case IIO_CHAN_INFO_SCALE:
-		*val = 0;
-		*val2 = 100; /* 0.0001 */
-		return IIO_VAL_INT_PLUS_MICRO;
+		switch (chan->type) {
+		case IIO_HUMIDITYRELATIVE:
+			*val = 10;
+			return IIO_VAL_INT;
+		case IIO_CONCENTRATION:
+			break;
+		default:
+			return -EINVAL;
+		}
+
+		/* IIO_CONCENTRATION modifiers */
+		switch (chan->channel2) {
+		case IIO_MOD_CO2:
+			*val = 0;
+			*val2 = 100; /* 0.0001 */
+			return IIO_VAL_INT_PLUS_MICRO;
+		case IIO_MOD_O2:
+			*val = 100;
+			return IIO_VAL_INT;
+		}
+		return -EINVAL;
 	}
 
 	return 0;
@@ -119,12 +185,16 @@ static const struct iio_info atlas_info = {
 
 static const struct i2c_device_id atlas_ezo_id[] = {
 	{ "atlas-co2-ezo", ATLAS_CO2_EZO },
+	{ "atlas-o2-ezo", ATLAS_O2_EZO },
+	{ "atlas-hum-ezo", ATLAS_HUM_EZO },
 	{}
 };
 MODULE_DEVICE_TABLE(i2c, atlas_ezo_id);
 
 static const struct of_device_id atlas_ezo_dt_ids[] = {
 	{ .compatible = "atlas,co2-ezo", .data = (void *)ATLAS_CO2_EZO, },
+	{ .compatible = "atlas,o2-ezo", .data = (void *)ATLAS_O2_EZO, },
+	{ .compatible = "atlas,hum-ezo", .data = (void *)ATLAS_HUM_EZO, },
 	{}
 };
 MODULE_DEVICE_TABLE(of, atlas_ezo_dt_ids);
diff --git a/drivers/iio/chemical/atlas-sensor.c b/drivers/iio/chemical/atlas-sensor.c
index 43069636fcd5..cdab9d04dedd 100644
--- a/drivers/iio/chemical/atlas-sensor.c
+++ b/drivers/iio/chemical/atlas-sensor.c
@@ -15,7 +15,7 @@
 #include <linux/irq.h>
 #include <linux/irq_work.h>
 #include <linux/i2c.h>
-#include <linux/of_device.h>
+#include <linux/mod_devicetable.h>
 #include <linux/regmap.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/buffer.h>
@@ -620,7 +620,6 @@ static int atlas_probe(struct i2c_client *client,
 {
 	struct atlas_data *data;
 	struct atlas_device *chip;
-	const struct of_device_id *of_id;
 	struct iio_trigger *trig;
 	struct iio_dev *indio_dev;
 	int ret;
@@ -629,11 +628,10 @@ static int atlas_probe(struct i2c_client *client,
 	if (!indio_dev)
 		return -ENOMEM;
 
-	of_id = of_match_device(atlas_dt_ids, &client->dev);
-	if (!of_id)
+	if (!dev_fwnode(&client->dev))
 		chip = &atlas_devices[id->driver_data];
 	else
-		chip = &atlas_devices[(unsigned long)of_id->data];
+		chip = &atlas_devices[(unsigned long)device_get_match_data(&client->dev)];
 
 	indio_dev->info = &atlas_info;
 	indio_dev->name = ATLAS_DRV_NAME;
@@ -775,7 +773,7 @@ static const struct dev_pm_ops atlas_pm_ops = {
 static struct i2c_driver atlas_driver = {
 	.driver = {
 		.name	= ATLAS_DRV_NAME,
-		.of_match_table	= of_match_ptr(atlas_dt_ids),
+		.of_match_table	= atlas_dt_ids,
 		.pm	= &atlas_pm_ops,
 	},
 	.probe		= atlas_probe,
diff --git a/drivers/iio/chemical/scd30_core.c b/drivers/iio/chemical/scd30_core.c
index eac76972f83e..4d0d798c7cd3 100644
--- a/drivers/iio/chemical/scd30_core.c
+++ b/drivers/iio/chemical/scd30_core.c
@@ -705,13 +705,8 @@ int scd30_probe(struct device *dev, int irq, const char *name, void *priv,
 	indio_dev->available_scan_masks = scd30_scan_masks;
 
 	state->vdd = devm_regulator_get(dev, "vdd");
-	if (IS_ERR(state->vdd)) {
-		if (PTR_ERR(state->vdd) == -EPROBE_DEFER)
-			return -EPROBE_DEFER;
-
-		dev_err(dev, "failed to get regulator\n");
-		return PTR_ERR(state->vdd);
-	}
+	if (IS_ERR(state->vdd))
+		return dev_err_probe(dev, PTR_ERR(state->vdd), "failed to get regulator\n");
 
 	ret = regulator_enable(state->vdd);
 	if (ret)
diff --git a/drivers/iio/chemical/sgp30.c b/drivers/iio/chemical/sgp30.c
index 2c4086c48136..1029c457be15 100644
--- a/drivers/iio/chemical/sgp30.c
+++ b/drivers/iio/chemical/sgp30.c
@@ -20,9 +20,9 @@
 #include <linux/delay.h>
 #include <linux/kthread.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/mutex.h>
 #include <linux/i2c.h>
-#include <linux/of_device.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
 
@@ -227,6 +227,7 @@ static int sgp_verify_buffer(const struct sgp_data *data,
  * @cmd:         SGP Command to issue
  * @buf:         Raw data buffer to use
  * @word_count:  Num words to read, excluding CRC bytes
+ * @duration_us: Time taken to sensor to take a reading and data to be ready.
  *
  * Return:       0 on success, negative error otherwise.
  */
@@ -409,6 +410,7 @@ static int sgp_read_raw(struct iio_dev *indio_dev,
 static int sgp_check_compat(struct sgp_data *data,
 			    unsigned int product_id)
 {
+	struct device *dev = &data->client->dev;
 	const struct sgp_version *supported_versions;
 	u16 ix, num_fs;
 	u16 product, generation, major, minor;
@@ -416,21 +418,20 @@ static int sgp_check_compat(struct sgp_data *data,
 	/* driver does not match product */
 	generation = SGP_VERS_GEN(data);
 	if (generation != 0) {
-		dev_err(&data->client->dev,
+		dev_err(dev,
 			"incompatible product generation %d != 0", generation);
 		return -ENODEV;
 	}
 
 	product = SGP_VERS_PRODUCT(data);
 	if (product != product_id) {
-		dev_err(&data->client->dev,
-			"sensor reports a different product: 0x%04hx\n",
+		dev_err(dev, "sensor reports a different product: 0x%04hx\n",
 			product);
 		return -ENODEV;
 	}
 
 	if (SGP_VERS_RESERVED(data))
-		dev_warn(&data->client->dev, "reserved bit is set\n");
+		dev_warn(dev, "reserved bit is set\n");
 
 	/* engineering samples are not supported: no interface guarantees */
 	if (SGP_VERS_ENG_BIT(data))
@@ -456,8 +457,7 @@ static int sgp_check_compat(struct sgp_data *data,
 		    minor >= supported_versions[ix].minor)
 			return 0;
 	}
-	dev_err(&data->client->dev, "unsupported sgp version: %d.%d\n",
-		major, minor);
+	dev_err(dev, "unsupported sgp version: %d.%d\n", major, minor);
 
 	return -ENODEV;
 }
@@ -499,19 +499,18 @@ static const struct of_device_id sgp_dt_ids[] = {
 static int sgp_probe(struct i2c_client *client,
 		     const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct iio_dev *indio_dev;
 	struct sgp_data *data;
-	const struct of_device_id *of_id;
 	unsigned long product_id;
 	int ret;
 
-	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
 	if (!indio_dev)
 		return -ENOMEM;
 
-	of_id = of_match_device(sgp_dt_ids, &client->dev);
-	if (of_id)
-		product_id = (unsigned long)of_id->data;
+	if (dev_fwnode(dev))
+		product_id = (unsigned long)device_get_match_data(dev);
 	else
 		product_id = id->driver_data;
 
@@ -541,9 +540,9 @@ static int sgp_probe(struct i2c_client *client,
 
 	sgp_init(data);
 
-	ret = devm_iio_device_register(&client->dev, indio_dev);
+	ret = devm_iio_device_register(dev, indio_dev);
 	if (ret) {
-		dev_err(&client->dev, "failed to register iio device\n");
+		dev_err(dev, "failed to register iio device\n");
 		return ret;
 	}
 
@@ -576,7 +575,7 @@ MODULE_DEVICE_TABLE(of, sgp_dt_ids);
 static struct i2c_driver sgp_driver = {
 	.driver = {
 		.name = "sgp30",
-		.of_match_table = of_match_ptr(sgp_dt_ids),
+		.of_match_table = sgp_dt_ids,
 	},
 	.probe = sgp_probe,
 	.remove = sgp_remove,
diff --git a/drivers/iio/chemical/vz89x.c b/drivers/iio/chemical/vz89x.c
index 5586eb8e12cd..23b22a5f5c1c 100644
--- a/drivers/iio/chemical/vz89x.c
+++ b/drivers/iio/chemical/vz89x.c
@@ -10,8 +10,7 @@
 #include <linux/mutex.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
+#include <linux/mod_devicetable.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
@@ -352,12 +351,12 @@ MODULE_DEVICE_TABLE(of, vz89x_dt_ids);
 static int vz89x_probe(struct i2c_client *client,
 		       const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct iio_dev *indio_dev;
 	struct vz89x_data *data;
-	const struct of_device_id *of_id;
 	int chip_id;
 
-	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
 	if (!indio_dev)
 		return -ENOMEM;
 	data = iio_priv(indio_dev);
@@ -370,11 +369,10 @@ static int vz89x_probe(struct i2c_client *client,
 	else
 		return -EOPNOTSUPP;
 
-	of_id = of_match_device(vz89x_dt_ids, &client->dev);
-	if (!of_id)
+	if (!dev_fwnode(dev))
 		chip_id = id->driver_data;
 	else
-		chip_id = (unsigned long)of_id->data;
+		chip_id = (unsigned long)device_get_match_data(dev);
 
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
@@ -383,13 +381,13 @@ static int vz89x_probe(struct i2c_client *client,
 	mutex_init(&data->lock);
 
 	indio_dev->info = &vz89x_info;
-	indio_dev->name = dev_name(&client->dev);
+	indio_dev->name = dev_name(dev);
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
 	indio_dev->channels = data->chip->channels;
 	indio_dev->num_channels = data->chip->num_channels;
 
-	return devm_iio_device_register(&client->dev, indio_dev);
+	return devm_iio_device_register(dev, indio_dev);
 }
 
 static const struct i2c_device_id vz89x_id[] = {
@@ -402,7 +400,7 @@ MODULE_DEVICE_TABLE(i2c, vz89x_id);
 static struct i2c_driver vz89x_driver = {
 	.driver = {
 		.name	= "vz89x",
-		.of_match_table = of_match_ptr(vz89x_dt_ids),
+		.of_match_table = vz89x_dt_ids,
 	},
 	.probe = vz89x_probe,
 	.id_table = vz89x_id,
diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_lid_angle.c b/drivers/iio/common/cros_ec_sensors/cros_ec_lid_angle.c
index af801e203623..752f59037715 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_lid_angle.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_lid_angle.c
@@ -97,7 +97,8 @@ static int cros_ec_lid_angle_probe(struct platform_device *pdev)
 	if (!indio_dev)
 		return -ENOMEM;
 
-	ret = cros_ec_sensors_core_init(pdev, indio_dev, false, NULL, NULL);
+	ret = cros_ec_sensors_core_init(pdev, indio_dev, false, NULL,
+					NULL, false);
 	if (ret)
 		return ret;
 
diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
index 130ab8ce0269..57038ca48d93 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
@@ -236,12 +236,11 @@ static int cros_ec_sensors_probe(struct platform_device *pdev)
 
 	ret = cros_ec_sensors_core_init(pdev, indio_dev, true,
 					cros_ec_sensors_capture,
-					cros_ec_sensors_push_data);
+					cros_ec_sensors_push_data,
+					true);
 	if (ret)
 		return ret;
 
-	iio_buffer_set_attrs(indio_dev->buffer, cros_ec_sensor_fifo_attributes);
-
 	indio_dev->info = &ec_sensors_info;
 	state = iio_priv(indio_dev);
 	for (channel = state->channels, i = CROS_EC_SENSOR_X;
diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
index 1bc6efa47316..c62cacc04672 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
@@ -177,12 +177,11 @@ static ssize_t hwfifo_watermark_max_show(struct device *dev,
 
 static IIO_DEVICE_ATTR_RO(hwfifo_watermark_max, 0);
 
-const struct attribute *cros_ec_sensor_fifo_attributes[] = {
+static const struct attribute *cros_ec_sensor_fifo_attributes[] = {
 	&iio_dev_attr_hwfifo_timeout.dev_attr.attr,
 	&iio_dev_attr_hwfifo_watermark_max.dev_attr.attr,
 	NULL,
 };
-EXPORT_SYMBOL_GPL(cros_ec_sensor_fifo_attributes);
 
 int cros_ec_sensors_push_data(struct iio_dev *indio_dev,
 			      s16 *data,
@@ -241,6 +240,7 @@ static void cros_ec_sensors_core_clean(void *arg)
  *    for backward compatibility.
  * @push_data:          function to call when cros_ec_sensorhub receives
  *    a sample for that sensor.
+ * @has_hw_fifo:	Set true if this device has/uses a HW FIFO
  *
  * Return: 0 on success, -errno on failure.
  */
@@ -248,7 +248,8 @@ int cros_ec_sensors_core_init(struct platform_device *pdev,
 			      struct iio_dev *indio_dev,
 			      bool physical_device,
 			      cros_ec_sensors_capture_t trigger_capture,
-			      cros_ec_sensorhub_push_data_cb_t push_data)
+			      cros_ec_sensorhub_push_data_cb_t push_data,
+			      bool has_hw_fifo)
 {
 	struct device *dev = &pdev->dev;
 	struct cros_ec_sensors_core_state *state = iio_priv(indio_dev);
@@ -361,6 +362,10 @@ int cros_ec_sensors_core_init(struct platform_device *pdev,
 					NULL);
 			if (ret)
 				return ret;
+
+			if (has_hw_fifo)
+				iio_buffer_set_attrs(indio_dev->buffer,
+						     cros_ec_sensor_fifo_attributes);
 		}
 	}
 
diff --git a/drivers/iio/common/ssp_sensors/ssp_dev.c b/drivers/iio/common/ssp_sensors/ssp_dev.c
index a94dbcf491ce..1aee87100038 100644
--- a/drivers/iio/common/ssp_sensors/ssp_dev.c
+++ b/drivers/iio/common/ssp_sensors/ssp_dev.c
@@ -503,7 +503,8 @@ static int ssp_probe(struct spi_device *spi)
 		return -ENODEV;
 	}
 
-	ret = mfd_add_devices(&spi->dev, -1, sensorhub_sensor_devs,
+	ret = mfd_add_devices(&spi->dev, PLATFORM_DEVID_NONE,
+			      sensorhub_sensor_devs,
 			      ARRAY_SIZE(sensorhub_sensor_devs), NULL, 0, NULL);
 	if (ret < 0) {
 		dev_err(&spi->dev, "mfd add devices fail\n");
diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c
index fef503f8012d..82abd4d6886c 100644
--- a/drivers/iio/dac/ad5064.c
+++ b/drivers/iio/dac/ad5064.c
@@ -68,8 +68,8 @@ enum ad5064_regmap_type {
  * struct ad5064_chip_info - chip specific information
  * @shared_vref:	whether the vref supply is shared between channels
  * @internal_vref:	internal reference voltage. 0 if the chip has no
-			internal vref.
- * @channel:		channel specification
+ *			internal vref.
+ * @channels:		channel specification
  * @num_channels:	number of channels
  * @regmap_type:	register map layout variant
  */
@@ -98,6 +98,7 @@ typedef int (*ad5064_write_func)(struct ad5064_state *st, unsigned int cmd,
  * @use_internal_vref:	set to true if the internal reference voltage should be
  *			used.
  * @write:		register write callback
+ * @lock:		maintain consistency between cached and dev state
  * @data:		i2c/spi transfer buffers
  */
 
@@ -111,7 +112,6 @@ struct ad5064_state {
 	bool				use_internal_vref;
 
 	ad5064_write_func		write;
-	/* Lock used to maintain consistency between cached and dev state */
 	struct mutex lock;
 
 	/*
diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c
index 935a6177569f..d87e21016863 100644
--- a/drivers/iio/dac/ad5446.c
+++ b/drivers/iio/dac/ad5446.c
@@ -17,6 +17,7 @@
 #include <linux/regulator/consumer.h>
 #include <linux/err.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
@@ -478,13 +479,11 @@ static const struct spi_device_id ad5446_spi_ids[] = {
 };
 MODULE_DEVICE_TABLE(spi, ad5446_spi_ids);
 
-#ifdef CONFIG_OF
 static const struct of_device_id ad5446_of_ids[] = {
 	{ .compatible = "ti,dac7512" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ad5446_of_ids);
-#endif
 
 static int ad5446_spi_probe(struct spi_device *spi)
 {
@@ -502,7 +501,7 @@ static int ad5446_spi_remove(struct spi_device *spi)
 static struct spi_driver ad5446_spi_driver = {
 	.driver = {
 		.name	= "ad5446",
-		.of_match_table = of_match_ptr(ad5446_of_ids),
+		.of_match_table = ad5446_of_ids,
 	},
 	.probe		= ad5446_spi_probe,
 	.remove		= ad5446_spi_remove,
diff --git a/drivers/iio/dac/ad5592r-base.c b/drivers/iio/dac/ad5592r-base.c
index 1fd75c02a7cd..0405e92b9e8c 100644
--- a/drivers/iio/dac/ad5592r-base.c
+++ b/drivers/iio/dac/ad5592r-base.c
@@ -374,36 +374,36 @@ static int ad5592r_read_raw(struct iio_dev *iio_dev,
 {
 	struct ad5592r_state *st = iio_priv(iio_dev);
 	u16 read_val;
-	int ret;
+	int ret, mult;
 
 	switch (m) {
 	case IIO_CHAN_INFO_RAW:
-		mutex_lock(&st->lock);
-
 		if (!chan->output) {
+			mutex_lock(&st->lock);
 			ret = st->ops->read_adc(st, chan->channel, &read_val);
+			mutex_unlock(&st->lock);
 			if (ret)
-				goto unlock;
+				return ret;
 
 			if ((read_val >> 12 & 0x7) != (chan->channel & 0x7)) {
 				dev_err(st->dev, "Error while reading channel %u\n",
 						chan->channel);
-				ret = -EIO;
-				goto unlock;
+				return -EIO;
 			}
 
 			read_val &= GENMASK(11, 0);
 
 		} else {
+			mutex_lock(&st->lock);
 			read_val = st->cached_dac[chan->channel];
+			mutex_unlock(&st->lock);
 		}
 
 		dev_dbg(st->dev, "Channel %u read: 0x%04hX\n",
 				chan->channel, read_val);
 
 		*val = (int) read_val;
-		ret = IIO_VAL_INT;
-		break;
+		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
 		*val = ad5592r_get_vref(st);
 
@@ -412,24 +412,24 @@ static int ad5592r_read_raw(struct iio_dev *iio_dev,
 			*val = div_s64_rem(tmp, 1000000000LL, val2);
 
 			return IIO_VAL_INT_PLUS_MICRO;
-		} else {
-			int mult;
+		}
 
-			mutex_lock(&st->lock);
+		mutex_lock(&st->lock);
 
-			if (chan->output)
-				mult = !!(st->cached_gp_ctrl &
-					AD5592R_REG_CTRL_DAC_RANGE);
-			else
-				mult = !!(st->cached_gp_ctrl &
-					AD5592R_REG_CTRL_ADC_RANGE);
+		if (chan->output)
+			mult = !!(st->cached_gp_ctrl &
+				AD5592R_REG_CTRL_DAC_RANGE);
+		else
+			mult = !!(st->cached_gp_ctrl &
+				AD5592R_REG_CTRL_ADC_RANGE);
 
-			*val *= ++mult;
+		mutex_unlock(&st->lock);
 
-			*val2 = chan->scan_type.realbits;
-			ret = IIO_VAL_FRACTIONAL_LOG2;
-		}
-		break;
+		*val *= ++mult;
+
+		*val2 = chan->scan_type.realbits;
+
+		return IIO_VAL_FRACTIONAL_LOG2;
 	case IIO_CHAN_INFO_OFFSET:
 		ret = ad5592r_get_vref(st);
 
@@ -439,15 +439,13 @@ static int ad5592r_read_raw(struct iio_dev *iio_dev,
 			*val = (-34365 * 25) / ret;
 		else
 			*val = (-75365 * 25) / ret;
-		ret =  IIO_VAL_INT;
-		break;
+
+		mutex_unlock(&st->lock);
+
+		return IIO_VAL_INT;
 	default:
 		return -EINVAL;
 	}
-
-unlock:
-	mutex_unlock(&st->lock);
-	return ret;
 }
 
 static int ad5592r_write_raw_get_fmt(struct iio_dev *indio_dev,
@@ -486,7 +484,7 @@ static const struct iio_chan_spec_ext_info ad5592r_ext_info[] = {
 	{
 	 .name = "scale_available",
 	 .read = ad5592r_show_scale_available,
-	 .shared = true,
+	 .shared = IIO_SHARED_BY_TYPE,
 	 },
 	{},
 };
diff --git a/drivers/iio/dac/ad5592r.c b/drivers/iio/dac/ad5592r.c
index 49308ad13c4b..41f651500668 100644
--- a/drivers/iio/dac/ad5592r.c
+++ b/drivers/iio/dac/ad5592r.c
@@ -10,9 +10,8 @@
 
 #include <linux/bitops.h>
 #include <linux/module.h>
-#include <linux/of.h>
+#include <linux/mod_devicetable.h>
 #include <linux/spi/spi.h>
-#include <linux/acpi.h>
 
 #define AD5592R_GPIO_READBACK_EN	BIT(10)
 #define AD5592R_LDAC_READBACK_EN	BIT(6)
@@ -157,8 +156,8 @@ MODULE_DEVICE_TABLE(acpi, ad5592r_acpi_match);
 static struct spi_driver ad5592r_spi_driver = {
 	.driver = {
 		.name = "ad5592r",
-		.of_match_table = of_match_ptr(ad5592r_of_match),
-		.acpi_match_table = ACPI_PTR(ad5592r_acpi_match),
+		.of_match_table = ad5592r_of_match,
+		.acpi_match_table = ad5592r_acpi_match,
 	},
 	.probe = ad5592r_spi_probe,
 	.remove = ad5592r_spi_remove,
diff --git a/drivers/iio/dac/ad5593r.c b/drivers/iio/dac/ad5593r.c
index 1fbe9c019c7f..5b4df36fdc2a 100644
--- a/drivers/iio/dac/ad5593r.c
+++ b/drivers/iio/dac/ad5593r.c
@@ -11,8 +11,7 @@
 #include <linux/bitops.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
-#include <linux/of.h>
-#include <linux/acpi.h>
+#include <linux/mod_devicetable.h>
 
 #define AD5593R_MODE_CONF		(0 << 4)
 #define AD5593R_MODE_DAC_WRITE		(1 << 4)
@@ -124,8 +123,8 @@ MODULE_DEVICE_TABLE(acpi, ad5593r_acpi_match);
 static struct i2c_driver ad5593r_driver = {
 	.driver = {
 		.name = "ad5593r",
-		.of_match_table = of_match_ptr(ad5593r_of_match),
-		.acpi_match_table = ACPI_PTR(ad5593r_acpi_match),
+		.of_match_table = ad5593r_of_match,
+		.acpi_match_table = ad5593r_acpi_match,
 	},
 	.probe = ad5593r_i2c_probe,
 	.remove = ad5593r_i2c_remove,
diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c
index 56cf9344d187..148d9541f517 100644
--- a/drivers/iio/dac/ad5686.c
+++ b/drivers/iio/dac/ad5686.c
@@ -206,12 +206,12 @@ static const struct iio_chan_spec_ext_info ad5686_ext_info[] = {
 }
 
 #define DECLARE_AD5693_CHANNELS(name, bits, _shift)		\
-static struct iio_chan_spec name[] = {				\
+static const struct iio_chan_spec name[] = {			\
 		AD5868_CHANNEL(0, 0, bits, _shift),		\
 }
 
 #define DECLARE_AD5686_CHANNELS(name, bits, _shift)		\
-static struct iio_chan_spec name[] = {				\
+static const struct iio_chan_spec name[] = {			\
 		AD5868_CHANNEL(0, 1, bits, _shift),		\
 		AD5868_CHANNEL(1, 2, bits, _shift),		\
 		AD5868_CHANNEL(2, 4, bits, _shift),		\
@@ -219,7 +219,7 @@ static struct iio_chan_spec name[] = {				\
 }
 
 #define DECLARE_AD5676_CHANNELS(name, bits, _shift)		\
-static struct iio_chan_spec name[] = {				\
+static const struct iio_chan_spec name[] = {			\
 		AD5868_CHANNEL(0, 0, bits, _shift),		\
 		AD5868_CHANNEL(1, 1, bits, _shift),		\
 		AD5868_CHANNEL(2, 2, bits, _shift),		\
@@ -231,7 +231,7 @@ static struct iio_chan_spec name[] = {				\
 }
 
 #define DECLARE_AD5679_CHANNELS(name, bits, _shift)		\
-static struct iio_chan_spec name[] = {				\
+static const struct iio_chan_spec name[] = {			\
 		AD5868_CHANNEL(0, 0, bits, _shift),		\
 		AD5868_CHANNEL(1, 1, bits, _shift),		\
 		AD5868_CHANNEL(2, 2, bits, _shift),		\
diff --git a/drivers/iio/dac/ad5686.h b/drivers/iio/dac/ad5686.h
index 52009b5eef88..a15f2970577e 100644
--- a/drivers/iio/dac/ad5686.h
+++ b/drivers/iio/dac/ad5686.h
@@ -104,7 +104,7 @@ typedef int (*ad5686_read_func)(struct ad5686_state *st, u8 addr);
 struct ad5686_chip_info {
 	u16				int_vref_mv;
 	unsigned int			num_channels;
-	struct iio_chan_spec		*channels;
+	const struct iio_chan_spec	*channels;
 	enum ad5686_regmap_type		regmap_type;
 };
 
diff --git a/drivers/iio/dac/ad7303.c b/drivers/iio/dac/ad7303.c
index 4460aa57a33f..2e46def9d8ee 100644
--- a/drivers/iio/dac/ad7303.c
+++ b/drivers/iio/dac/ad7303.c
@@ -7,6 +7,7 @@
 
 #include <linux/err.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/kernel.h>
 #include <linux/spi/spi.h>
 #include <linux/slab.h>
@@ -29,6 +30,9 @@
  * @spi:		the device for this driver instance
  * @config:		cached config register value
  * @dac_cache:		current DAC raw value (chip does not support readback)
+ * @vdd_reg:		reference to VDD regulator
+ * @vref_reg:		reference to VREF regulator
+ * @lock:		protect writes and cache updates
  * @data:		spi transfer buffer
  */
 
@@ -287,7 +291,7 @@ MODULE_DEVICE_TABLE(spi, ad7303_spi_ids);
 static struct spi_driver ad7303_driver = {
 	.driver = {
 		.name = "ad7303",
-		.of_match_table = of_match_ptr(ad7303_spi_of_match),
+		.of_match_table = ad7303_spi_of_match,
 	},
 	.probe = ad7303_probe,
 	.remove = ad7303_remove,
diff --git a/drivers/iio/dac/dpot-dac.c b/drivers/iio/dac/dpot-dac.c
index 1a9609eda5c5..5d1819448102 100644
--- a/drivers/iio/dac/dpot-dac.c
+++ b/drivers/iio/dac/dpot-dac.c
@@ -184,18 +184,14 @@ static int dpot_dac_probe(struct platform_device *pdev)
 	indio_dev->num_channels = 1;
 
 	dac->vref = devm_regulator_get(dev, "vref");
-	if (IS_ERR(dac->vref)) {
-		if (PTR_ERR(dac->vref) != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "failed to get vref regulator\n");
-		return PTR_ERR(dac->vref);
-	}
+	if (IS_ERR(dac->vref))
+		return dev_err_probe(&pdev->dev, PTR_ERR(dac->vref),
+				     "failed to get vref regulator\n");
 
 	dac->dpot = devm_iio_channel_get(dev, "dpot");
-	if (IS_ERR(dac->dpot)) {
-		if (PTR_ERR(dac->dpot) != -EPROBE_DEFER)
-			dev_err(dev, "failed to get dpot input channel\n");
-		return PTR_ERR(dac->dpot);
-	}
+	if (IS_ERR(dac->dpot))
+		return dev_err_probe(&pdev->dev, PTR_ERR(dac->dpot),
+				     "failed to get dpot input channel\n");
 
 	ret = iio_get_channel_type(dac->dpot, &type);
 	if (ret < 0)
diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
index ee174d224110..beb9a15b7c74 100644
--- a/drivers/iio/dac/mcp4725.c
+++ b/drivers/iio/dac/mcp4725.c
@@ -16,8 +16,8 @@
 #include <linux/err.h>
 #include <linux/delay.h>
 #include <linux/regulator/consumer.h>
-#include <linux/of_device.h>
-#include <linux/of.h>
+#include <linux/mod_devicetable.h>
+#include <linux/property.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
@@ -357,29 +357,16 @@ static const struct iio_info mcp4725_info = {
 	.attrs = &mcp4725_attribute_group,
 };
 
-#ifdef CONFIG_OF
 static int mcp4725_probe_dt(struct device *dev,
 			    struct mcp4725_platform_data *pdata)
 {
-	struct device_node *np = dev->of_node;
-
-	if (!np)
-		return -ENODEV;
-
 	/* check if is the vref-supply defined */
-	pdata->use_vref = of_property_read_bool(np, "vref-supply");
+	pdata->use_vref = device_property_read_bool(dev, "vref-supply");
 	pdata->vref_buffered =
-		of_property_read_bool(np, "microchip,vref-buffered");
+		device_property_read_bool(dev, "microchip,vref-buffered");
 
 	return 0;
 }
-#else
-static int mcp4725_probe_dt(struct device *dev,
-			    struct mcp4725_platform_data *platform_data)
-{
-	return -ENODEV;
-}
-#endif
 
 static int mcp4725_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
@@ -398,8 +385,8 @@ static int mcp4725_probe(struct i2c_client *client,
 	data = iio_priv(indio_dev);
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
-	if (client->dev.of_node)
-		data->id = (enum chip_id)of_device_get_match_data(&client->dev);
+	if (dev_fwnode(&client->dev))
+		data->id = (enum chip_id)device_get_match_data(&client->dev);
 	else
 		data->id = id->driver_data;
 	pdata = dev_get_platdata(&client->dev);
@@ -519,7 +506,6 @@ static const struct i2c_device_id mcp4725_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, mcp4725_id);
 
-#ifdef CONFIG_OF
 static const struct of_device_id mcp4725_of_match[] = {
 	{
 		.compatible = "microchip,mcp4725",
@@ -532,12 +518,11 @@ static const struct of_device_id mcp4725_of_match[] = {
 	{ }
 };
 MODULE_DEVICE_TABLE(of, mcp4725_of_match);
-#endif
 
 static struct i2c_driver mcp4725_driver = {
 	.driver = {
 		.name	= MCP4725_DRV_NAME,
-		.of_match_table = of_match_ptr(mcp4725_of_match),
+		.of_match_table = mcp4725_of_match,
 		.pm	= &mcp4725_pm_ops,
 	},
 	.probe		= mcp4725_probe,
diff --git a/drivers/iio/dac/stm32-dac-core.c b/drivers/iio/dac/stm32-dac-core.c
index 7e5809ba0dee..906436780347 100644
--- a/drivers/iio/dac/stm32-dac-core.c
+++ b/drivers/iio/dac/stm32-dac-core.c
@@ -150,10 +150,7 @@ static int stm32_dac_probe(struct platform_device *pdev)
 	rst = devm_reset_control_get_optional_exclusive(dev, NULL);
 	if (rst) {
 		if (IS_ERR(rst)) {
-			ret = PTR_ERR(rst);
-			if (ret != -EPROBE_DEFER)
-				dev_err(dev, "reset get failed, %d\n", ret);
-
+			ret = dev_err_probe(dev, PTR_ERR(rst), "reset get failed\n");
 			goto err_hw_stop;
 		}
 
diff --git a/drivers/iio/dac/stm32-dac.c b/drivers/iio/dac/stm32-dac.c
index 092c796fa3d9..12dec68c16f7 100644
--- a/drivers/iio/dac/stm32-dac.c
+++ b/drivers/iio/dac/stm32-dac.c
@@ -26,9 +26,12 @@
 /**
  * struct stm32_dac - private data of DAC driver
  * @common:		reference to DAC common data
+ * @lock:		lock to protect against potential races when reading
+ *			and update CR, to keep it in sync with pm_runtime
  */
 struct stm32_dac {
 	struct stm32_dac_common *common;
+	struct mutex		lock;
 };
 
 static int stm32_dac_is_enabled(struct iio_dev *indio_dev, int channel)
@@ -58,10 +61,10 @@ static int stm32_dac_set_enable_state(struct iio_dev *indio_dev, int ch,
 	int ret;
 
 	/* already enabled / disabled ? */
-	mutex_lock(&indio_dev->mlock);
+	mutex_lock(&dac->lock);
 	ret = stm32_dac_is_enabled(indio_dev, ch);
 	if (ret < 0 || enable == !!ret) {
-		mutex_unlock(&indio_dev->mlock);
+		mutex_unlock(&dac->lock);
 		return ret < 0 ? ret : 0;
 	}
 
@@ -69,13 +72,13 @@ static int stm32_dac_set_enable_state(struct iio_dev *indio_dev, int ch,
 		ret = pm_runtime_get_sync(dev);
 		if (ret < 0) {
 			pm_runtime_put_noidle(dev);
-			mutex_unlock(&indio_dev->mlock);
+			mutex_unlock(&dac->lock);
 			return ret;
 		}
 	}
 
 	ret = regmap_update_bits(dac->common->regmap, STM32_DAC_CR, msk, en);
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&dac->lock);
 	if (ret < 0) {
 		dev_err(&indio_dev->dev, "%s failed\n", en ?
 			"Enable" : "Disable");
@@ -327,6 +330,8 @@ static int stm32_dac_probe(struct platform_device *pdev)
 	indio_dev->info = &stm32_dac_iio_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
+	mutex_init(&dac->lock);
+
 	ret = stm32_dac_chan_of_init(indio_dev);
 	if (ret < 0)
 		return ret;
diff --git a/drivers/iio/dac/ti-dac082s085.c b/drivers/iio/dac/ti-dac082s085.c
index 86bfb1c3f9b9..de33c1fc6e0b 100644
--- a/drivers/iio/dac/ti-dac082s085.c
+++ b/drivers/iio/dac/ti-dac082s085.c
@@ -14,6 +14,7 @@
 
 #include <linux/iio/iio.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/regulator/consumer.h>
 #include <linux/spi/spi.h>
 
@@ -324,7 +325,6 @@ static int ti_dac_remove(struct spi_device *spi)
 	return 0;
 }
 
-#ifdef CONFIG_OF
 static const struct of_device_id ti_dac_of_id[] = {
 	{ .compatible = "ti,dac082s085" },
 	{ .compatible = "ti,dac102s085" },
@@ -335,7 +335,6 @@ static const struct of_device_id ti_dac_of_id[] = {
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ti_dac_of_id);
-#endif
 
 static const struct spi_device_id ti_dac_spi_id[] = {
 	{ "dac082s085", dual_8bit  },
@@ -351,7 +350,7 @@ MODULE_DEVICE_TABLE(spi, ti_dac_spi_id);
 static struct spi_driver ti_dac_driver = {
 	.driver = {
 		.name		= "ti-dac082s085",
-		.of_match_table	= of_match_ptr(ti_dac_of_id),
+		.of_match_table	= ti_dac_of_id,
 	},
 	.probe	  = ti_dac_probe,
 	.remove   = ti_dac_remove,
diff --git a/drivers/iio/dac/ti-dac5571.c b/drivers/iio/dac/ti-dac5571.c
index 00fc7db8eb65..d3295767a079 100644
--- a/drivers/iio/dac/ti-dac5571.c
+++ b/drivers/iio/dac/ti-dac5571.c
@@ -18,8 +18,7 @@
 #include <linux/iio/iio.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
-#include <linux/of.h>
+#include <linux/mod_devicetable.h>
 #include <linux/regulator/consumer.h>
 
 enum chip_id {
@@ -47,8 +46,8 @@ struct dac5571_data {
 	struct mutex lock;
 	struct regulator *vref;
 	u16 val[4];
-	bool powerdown;
-	u8 powerdown_mode;
+	bool powerdown[4];
+	u8 powerdown_mode[4];
 	struct dac5571_spec const *spec;
 	int (*dac5571_cmd)(struct dac5571_data *data, int channel, u16 val);
 	int (*dac5571_pwrdwn)(struct dac5571_data *data, int channel, u8 pwrdwn);
@@ -125,7 +124,7 @@ static int dac5571_get_powerdown_mode(struct iio_dev *indio_dev,
 {
 	struct dac5571_data *data = iio_priv(indio_dev);
 
-	return data->powerdown_mode;
+	return data->powerdown_mode[chan->channel];
 }
 
 static int dac5571_set_powerdown_mode(struct iio_dev *indio_dev,
@@ -135,17 +134,17 @@ static int dac5571_set_powerdown_mode(struct iio_dev *indio_dev,
 	struct dac5571_data *data = iio_priv(indio_dev);
 	int ret = 0;
 
-	if (data->powerdown_mode == mode)
+	if (data->powerdown_mode[chan->channel] == mode)
 		return 0;
 
 	mutex_lock(&data->lock);
-	if (data->powerdown) {
+	if (data->powerdown[chan->channel]) {
 		ret = data->dac5571_pwrdwn(data, chan->channel,
 					   DAC5571_POWERDOWN(mode));
 		if (ret)
 			goto out;
 	}
-	data->powerdown_mode = mode;
+	data->powerdown_mode[chan->channel] = mode;
 
  out:
 	mutex_unlock(&data->lock);
@@ -167,7 +166,7 @@ static ssize_t dac5571_read_powerdown(struct iio_dev *indio_dev,
 {
 	struct dac5571_data *data = iio_priv(indio_dev);
 
-	return sprintf(buf, "%d\n", data->powerdown);
+	return sprintf(buf, "%d\n", data->powerdown[chan->channel]);
 }
 
 static ssize_t dac5571_write_powerdown(struct iio_dev *indio_dev,
@@ -183,19 +182,20 @@ static ssize_t dac5571_write_powerdown(struct iio_dev *indio_dev,
 	if (ret)
 		return ret;
 
-	if (data->powerdown == powerdown)
+	if (data->powerdown[chan->channel] == powerdown)
 		return len;
 
 	mutex_lock(&data->lock);
 	if (powerdown)
 		ret = data->dac5571_pwrdwn(data, chan->channel,
-			    DAC5571_POWERDOWN(data->powerdown_mode));
+			    DAC5571_POWERDOWN(data->powerdown_mode[chan->channel]));
 	else
-		ret = data->dac5571_cmd(data, chan->channel, data->val[0]);
+		ret = data->dac5571_cmd(data, chan->channel,
+				data->val[chan->channel]);
 	if (ret)
 		goto out;
 
-	data->powerdown = powerdown;
+	data->powerdown[chan->channel] = powerdown;
 
  out:
 	mutex_unlock(&data->lock);
@@ -209,9 +209,9 @@ static const struct iio_chan_spec_ext_info dac5571_ext_info[] = {
 		.name	   = "powerdown",
 		.read	   = dac5571_read_powerdown,
 		.write	   = dac5571_write_powerdown,
-		.shared	   = IIO_SHARED_BY_TYPE,
+		.shared	   = IIO_SEPARATE,
 	},
-	IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE, &dac5571_powerdown_mode),
+	IIO_ENUM("powerdown_mode", IIO_SEPARATE, &dac5571_powerdown_mode),
 	IIO_ENUM_AVAILABLE("powerdown_mode", &dac5571_powerdown_mode),
 	{},
 };
@@ -276,7 +276,7 @@ static int dac5571_write_raw(struct iio_dev *indio_dev,
 		if (val >= (1 << data->spec->resolution) || val < 0)
 			return -EINVAL;
 
-		if (data->powerdown)
+		if (data->powerdown[chan->channel])
 			return -EBUSY;
 
 		mutex_lock(&data->lock);
@@ -383,7 +383,6 @@ static int dac5571_remove(struct i2c_client *i2c)
 	return 0;
 }
 
-#ifdef CONFIG_OF
 static const struct of_device_id dac5571_of_id[] = {
 	{.compatible = "ti,dac5571"},
 	{.compatible = "ti,dac6571"},
@@ -397,7 +396,6 @@ static const struct of_device_id dac5571_of_id[] = {
 	{}
 };
 MODULE_DEVICE_TABLE(of, dac5571_of_id);
-#endif
 
 static const struct i2c_device_id dac5571_id[] = {
 	{"dac5571", single_8bit},
@@ -416,7 +414,7 @@ MODULE_DEVICE_TABLE(i2c, dac5571_id);
 static struct i2c_driver dac5571_driver = {
 	.driver = {
 		   .name = "ti-dac5571",
-		   .of_match_table = of_match_ptr(dac5571_of_id),
+		   .of_match_table = dac5571_of_id,
 	},
 	.probe	  = dac5571_probe,
 	.remove   = dac5571_remove,
diff --git a/drivers/iio/dac/ti-dac7612.c b/drivers/iio/dac/ti-dac7612.c
index 07c9f39d54f1..4c0f4b5e9ff4 100644
--- a/drivers/iio/dac/ti-dac7612.c
+++ b/drivers/iio/dac/ti-dac7612.c
@@ -23,6 +23,14 @@ struct dac7612 {
 	uint16_t cache[2];
 
 	/*
+	 * Lock to protect the state of the device from potential concurrent
+	 * write accesses from userspace. The write operation requires an
+	 * SPI write, then toggling of a GPIO, so the lock aims to protect
+	 * the sanity of the entire sequence of operation.
+	 */
+	struct mutex lock;
+
+	/*
 	 * DMA (thus cache coherency maintenance) requires the
 	 * transfer buffers to live in their own cache lines.
 	 */
@@ -101,9 +109,9 @@ static int dac7612_write_raw(struct iio_dev *iio_dev,
 	if (val == priv->cache[chan->channel])
 		return 0;
 
-	mutex_lock(&iio_dev->mlock);
+	mutex_lock(&priv->lock);
 	ret = dac7612_cmd_single(priv, chan->channel, val);
-	mutex_unlock(&iio_dev->mlock);
+	mutex_unlock(&priv->lock);
 
 	return ret;
 }
@@ -145,6 +153,8 @@ static int dac7612_probe(struct spi_device *spi)
 	iio_dev->num_channels = ARRAY_SIZE(priv->cache);
 	iio_dev->name = spi_get_device_id(spi)->name;
 
+	mutex_init(&priv->lock);
+
 	for (i = 0; i < ARRAY_SIZE(priv->cache); i++) {
 		ret = dac7612_cmd_single(priv, i, 0);
 		if (ret)
diff --git a/drivers/iio/dummy/iio_dummy_evgen.c b/drivers/iio/dummy/iio_dummy_evgen.c
index ee85d596e528..5a0072727ba4 100644
--- a/drivers/iio/dummy/iio_dummy_evgen.c
+++ b/drivers/iio/dummy/iio_dummy_evgen.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0-only
-/**
+/*
  * Copyright (c) 2011 Jonathan Cameron
  *
  * Companion module to the iio simple dummy example driver.
@@ -27,11 +27,13 @@
 #define IIO_EVENTGEN_NO 10
 
 /**
+ * struct iio_dummy_eventgen - event generator specific state
  * @regs: irq regs we are faking
  * @lock: protect the evgen state
  * @inuse: mask of which irqs are connected
  * @irq_sim: interrupt simulator
  * @base: base of irq range
+ * @irq_sim_domain: irq simulator domain
  */
 struct iio_dummy_eventgen {
 	struct iio_dummy_regs regs[IIO_EVENTGEN_NO];
diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c
index 334e1d779d6d..bdb0bc3b12dd 100644
--- a/drivers/iio/frequency/ad9523.c
+++ b/drivers/iio/frequency/ad9523.c
@@ -969,6 +969,13 @@ static int ad9523_setup(struct iio_dev *indio_dev)
 	return 0;
 }
 
+static void ad9523_reg_disable(void *data)
+{
+	struct regulator *reg = data;
+
+	regulator_disable(reg);
+}
+
 static int ad9523_probe(struct spi_device *spi)
 {
 	struct ad9523_platform_data *pdata = spi->dev.platform_data;
@@ -994,21 +1001,22 @@ static int ad9523_probe(struct spi_device *spi)
 		ret = regulator_enable(st->reg);
 		if (ret)
 			return ret;
+
+		ret = devm_add_action_or_reset(&spi->dev, ad9523_reg_disable,
+					       st->reg);
+		if (ret)
+			return ret;
 	}
 
 	st->pwrdown_gpio = devm_gpiod_get_optional(&spi->dev, "powerdown",
 		GPIOD_OUT_HIGH);
-	if (IS_ERR(st->pwrdown_gpio)) {
-		ret = PTR_ERR(st->pwrdown_gpio);
-		goto error_disable_reg;
-	}
+	if (IS_ERR(st->pwrdown_gpio))
+		return PTR_ERR(st->pwrdown_gpio);
 
 	st->reset_gpio = devm_gpiod_get_optional(&spi->dev, "reset",
 		GPIOD_OUT_LOW);
-	if (IS_ERR(st->reset_gpio)) {
-		ret = PTR_ERR(st->reset_gpio);
-		goto error_disable_reg;
-	}
+	if (IS_ERR(st->reset_gpio))
+		return PTR_ERR(st->reset_gpio);
 
 	if (st->reset_gpio) {
 		udelay(1);
@@ -1017,10 +1025,8 @@ static int ad9523_probe(struct spi_device *spi)
 
 	st->sync_gpio = devm_gpiod_get_optional(&spi->dev, "sync",
 		GPIOD_OUT_HIGH);
-	if (IS_ERR(st->sync_gpio)) {
-		ret = PTR_ERR(st->sync_gpio);
-		goto error_disable_reg;
-	}
+	if (IS_ERR(st->sync_gpio))
+		return PTR_ERR(st->sync_gpio);
 
 	spi_set_drvdata(spi, indio_dev);
 	st->spi = spi;
@@ -1035,34 +1041,9 @@ static int ad9523_probe(struct spi_device *spi)
 
 	ret = ad9523_setup(indio_dev);
 	if (ret < 0)
-		goto error_disable_reg;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_disable_reg;
-
-	dev_info(&spi->dev, "probed %s\n", indio_dev->name);
-
-	return 0;
-
-error_disable_reg:
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
-
-	return ret;
-}
-
-static int ad9523_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct ad9523_state *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
+		return ret;
 
-	return 0;
+	return devm_iio_device_register(&spi->dev, indio_dev);
 }
 
 static const struct spi_device_id ad9523_id[] = {
@@ -1076,7 +1057,6 @@ static struct spi_driver ad9523_driver = {
 		.name	= "ad9523",
 	},
 	.probe		= ad9523_probe,
-	.remove		= ad9523_remove,
 	.id_table	= ad9523_id,
 };
 module_spi_driver(ad9523_driver);
diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c
index 409c9c47161e..82c050a3899d 100644
--- a/drivers/iio/frequency/adf4350.c
+++ b/drivers/iio/frequency/adf4350.c
@@ -48,6 +48,13 @@ struct adf4350_state {
 	unsigned long			regs_hw[6];
 	unsigned long long		freq_req;
 	/*
+	 * Lock to protect the state of the device from potential concurrent
+	 * writes. The device is configured via a sequence of SPI writes,
+	 * and this lock is meant to prevent the start of another sequence
+	 * before another one has finished.
+	 */
+	struct mutex			lock;
+	/*
 	 * DMA (thus cache coherency maintenance) requires the
 	 * transfer buffers to live in their own cache lines.
 	 */
@@ -99,7 +106,7 @@ static int adf4350_reg_access(struct iio_dev *indio_dev,
 	if (reg > ADF4350_REG5)
 		return -EINVAL;
 
-	mutex_lock(&indio_dev->mlock);
+	mutex_lock(&st->lock);
 	if (readval == NULL) {
 		st->regs[reg] = writeval & ~(BIT(0) | BIT(1) | BIT(2));
 		ret = adf4350_sync_config(st);
@@ -107,7 +114,7 @@ static int adf4350_reg_access(struct iio_dev *indio_dev,
 		*readval =  st->regs_hw[reg];
 		ret = 0;
 	}
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&st->lock);
 
 	return ret;
 }
@@ -254,7 +261,7 @@ static ssize_t adf4350_write(struct iio_dev *indio_dev,
 	if (ret)
 		return ret;
 
-	mutex_lock(&indio_dev->mlock);
+	mutex_lock(&st->lock);
 	switch ((u32)private) {
 	case ADF4350_FREQ:
 		ret = adf4350_set_freq(st, readin);
@@ -295,7 +302,7 @@ static ssize_t adf4350_write(struct iio_dev *indio_dev,
 	default:
 		ret = -EINVAL;
 	}
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&st->lock);
 
 	return ret ? ret : len;
 }
@@ -309,7 +316,7 @@ static ssize_t adf4350_read(struct iio_dev *indio_dev,
 	unsigned long long val;
 	int ret = 0;
 
-	mutex_lock(&indio_dev->mlock);
+	mutex_lock(&st->lock);
 	switch ((u32)private) {
 	case ADF4350_FREQ:
 		val = (u64)((st->r0_int * st->r1_mod) + st->r0_fract) *
@@ -338,7 +345,7 @@ static ssize_t adf4350_read(struct iio_dev *indio_dev,
 		ret = -EINVAL;
 		val = 0;
 	}
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&st->lock);
 
 	return ret < 0 ? ret : sprintf(buf, "%llu\n", val);
 }
@@ -539,6 +546,8 @@ static int adf4350_probe(struct spi_device *spi)
 	indio_dev->channels = &adf4350_chan;
 	indio_dev->num_channels = 1;
 
+	mutex_init(&st->lock);
+
 	st->chspc = pdata->channel_spacing;
 	if (clk) {
 		st->clk = clk;
diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
index 6daeddf37f60..5824f2edf975 100644
--- a/drivers/iio/gyro/Kconfig
+++ b/drivers/iio/gyro/Kconfig
@@ -41,6 +41,18 @@ config ADIS16260
 	  This driver can also be built as a module.  If so, the module
 	  will be called adis16260.
 
+config ADXRS290
+	tristate "Analog Devices ADXRS290 Dual-Axis MEMS Gyroscope SPI driver"
+	depends on SPI
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	help
+	  Say yes here to build support for Analog Devices ADXRS290 programmable
+	  digital output gyroscope.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called adxrs290.
+
 config ADXRS450
 	tristate "Analog Devices ADXRS450/3 Digital Output Gyroscope SPI driver"
 	depends on SPI
diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile
index 45cbd5dc644e..0319b397dc3f 100644
--- a/drivers/iio/gyro/Makefile
+++ b/drivers/iio/gyro/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_ADIS16080) += adis16080.o
 obj-$(CONFIG_ADIS16130) += adis16130.o
 obj-$(CONFIG_ADIS16136) += adis16136.o
 obj-$(CONFIG_ADIS16260) += adis16260.o
+obj-$(CONFIG_ADXRS290) += adxrs290.o
 obj-$(CONFIG_ADXRS450) += adxrs450.o
 obj-$(CONFIG_BMG160) += bmg160_core.o
 obj-$(CONFIG_BMG160_I2C) += bmg160_i2c.o
diff --git a/drivers/iio/gyro/adis16080.c b/drivers/iio/gyro/adis16080.c
index 6e5e2d98943c..e2f4d943e220 100644
--- a/drivers/iio/gyro/adis16080.c
+++ b/drivers/iio/gyro/adis16080.c
@@ -38,7 +38,7 @@ struct adis16080_chip_info {
  * @us:			actual spi_device to write data
  * @info:		chip specific parameters
  * @buf:		transmit or receive buffer
- * @lock		lock to protect buffer during reads
+ * @lock:		lock to protect buffer during reads
  **/
 struct adis16080_state {
 	struct spi_device		*us;
diff --git a/drivers/iio/gyro/adis16136.c b/drivers/iio/gyro/adis16136.c
index d8a96f6bbae2..a11ae9db0d11 100644
--- a/drivers/iio/gyro/adis16136.c
+++ b/drivers/iio/gyro/adis16136.c
@@ -523,6 +523,11 @@ static const struct adis16136_chip_info adis16136_chip_info[] = {
 	},
 };
 
+static void adis16136_stop(void *data)
+{
+	adis16136_stop_device(data);
+}
+
 static int adis16136_probe(struct spi_device *spi)
 {
 	const struct spi_device_id *id = spi_get_device_id(spi);
@@ -552,38 +557,23 @@ static int adis16136_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = adis_setup_buffer_and_trigger(&adis16136->adis, indio_dev, NULL);
+	ret = devm_adis_setup_buffer_and_trigger(&adis16136->adis, indio_dev, NULL);
 	if (ret)
 		return ret;
 
 	ret = adis16136_initial_setup(indio_dev);
 	if (ret)
-		goto error_cleanup_buffer;
+		return ret;
 
-	ret = iio_device_register(indio_dev);
+	ret = devm_add_action_or_reset(&spi->dev, adis16136_stop, indio_dev);
 	if (ret)
-		goto error_stop_device;
-
-	adis16136_debugfs_init(indio_dev);
-
-	return 0;
-
-error_stop_device:
-	adis16136_stop_device(indio_dev);
-error_cleanup_buffer:
-	adis_cleanup_buffer_and_trigger(&adis16136->adis, indio_dev);
-	return ret;
-}
-
-static int adis16136_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct adis16136 *adis16136 = iio_priv(indio_dev);
+		return ret;
 
-	iio_device_unregister(indio_dev);
-	adis16136_stop_device(indio_dev);
+	ret = devm_iio_device_register(&spi->dev, indio_dev);
+	if (ret)
+		return ret;
 
-	adis_cleanup_buffer_and_trigger(&adis16136->adis, indio_dev);
+	adis16136_debugfs_init(indio_dev);
 
 	return 0;
 }
@@ -603,7 +593,6 @@ static struct spi_driver adis16136_driver = {
 	},
 	.id_table = adis16136_ids,
 	.probe = adis16136_probe,
-	.remove = adis16136_remove,
 };
 module_spi_driver(adis16136_driver);
 
diff --git a/drivers/iio/gyro/adis16260.c b/drivers/iio/gyro/adis16260.c
index e638d56e1574..e7c9a3e31c45 100644
--- a/drivers/iio/gyro/adis16260.c
+++ b/drivers/iio/gyro/adis16260.c
@@ -359,6 +359,11 @@ static const struct adis_data adis16260_data = {
 		BIT(ADIS16260_DIAG_STAT_POWER_LOW_BIT),
 };
 
+static void adis16260_stop(void *data)
+{
+	adis16260_stop_device(data);
+}
+
 static int adis16260_probe(struct spi_device *spi)
 {
 	const struct spi_device_id *id;
@@ -390,35 +395,20 @@ static int adis16260_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = adis_setup_buffer_and_trigger(&adis16260->adis, indio_dev, NULL);
+	ret = devm_adis_setup_buffer_and_trigger(&adis16260->adis, indio_dev, NULL);
 	if (ret)
 		return ret;
 
 	/* Get the device into a sane initial state */
 	ret = adis_initial_startup(&adis16260->adis);
 	if (ret)
-		goto error_cleanup_buffer_trigger;
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_cleanup_buffer_trigger;
-
-	return 0;
-
-error_cleanup_buffer_trigger:
-	adis_cleanup_buffer_and_trigger(&adis16260->adis, indio_dev);
-	return ret;
-}
-
-static int adis16260_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct adis16260 *adis16260 = iio_priv(indio_dev);
+		return ret;
 
-	iio_device_unregister(indio_dev);
-	adis16260_stop_device(indio_dev);
-	adis_cleanup_buffer_and_trigger(&adis16260->adis, indio_dev);
+	ret = devm_add_action_or_reset(&spi->dev, adis16260_stop, indio_dev);
+	if (ret)
+		return ret;
 
-	return 0;
+	return devm_iio_device_register(&spi->dev, indio_dev);
 }
 
 /*
@@ -441,7 +431,6 @@ static struct spi_driver adis16260_driver = {
 		.name = "adis16260",
 	},
 	.probe = adis16260_probe,
-	.remove = adis16260_remove,
 	.id_table = adis16260_id,
 };
 module_spi_driver(adis16260_driver);
diff --git a/drivers/iio/gyro/adxrs290.c b/drivers/iio/gyro/adxrs290.c
new file mode 100644
index 000000000000..ca6fc234076e
--- /dev/null
+++ b/drivers/iio/gyro/adxrs290.c
@@ -0,0 +1,710 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * ADXRS290 SPI Gyroscope Driver
+ *
+ * Copyright (C) 2020 Nishant Malpani <nish.malpani25@gmail.com>
+ * Copyright (C) 2020 Analog Devices, Inc.
+ */
+
+#include <linux/bitfield.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+
+#include <linux/iio/buffer.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/triggered_buffer.h>
+#include <linux/iio/trigger_consumer.h>
+
+#define ADXRS290_ADI_ID		0xAD
+#define ADXRS290_MEMS_ID	0x1D
+#define ADXRS290_DEV_ID		0x92
+
+#define ADXRS290_REG_ADI_ID	0x00
+#define ADXRS290_REG_MEMS_ID	0x01
+#define ADXRS290_REG_DEV_ID	0x02
+#define ADXRS290_REG_REV_ID	0x03
+#define ADXRS290_REG_SN0	0x04 /* Serial Number Registers, 4 bytes */
+#define ADXRS290_REG_DATAX0	0x08 /* Roll Rate o/p Data Regs, 2 bytes */
+#define ADXRS290_REG_DATAY0	0x0A /* Pitch Rate o/p Data Regs, 2 bytes */
+#define ADXRS290_REG_TEMP0	0x0C
+#define ADXRS290_REG_POWER_CTL	0x10
+#define ADXRS290_REG_FILTER	0x11
+#define ADXRS290_REG_DATA_RDY	0x12
+
+#define ADXRS290_READ		BIT(7)
+#define ADXRS290_TSM		BIT(0)
+#define ADXRS290_MEASUREMENT	BIT(1)
+#define ADXRS290_DATA_RDY_OUT	BIT(0)
+#define ADXRS290_SYNC_MASK	GENMASK(1, 0)
+#define ADXRS290_SYNC(x)	FIELD_PREP(ADXRS290_SYNC_MASK, x)
+#define ADXRS290_LPF_MASK	GENMASK(2, 0)
+#define ADXRS290_LPF(x)		FIELD_PREP(ADXRS290_LPF_MASK, x)
+#define ADXRS290_HPF_MASK	GENMASK(7, 4)
+#define ADXRS290_HPF(x)		FIELD_PREP(ADXRS290_HPF_MASK, x)
+
+#define ADXRS290_READ_REG(reg)	(ADXRS290_READ | (reg))
+
+#define ADXRS290_MAX_TRANSITION_TIME_MS 100
+
+enum adxrs290_mode {
+	ADXRS290_MODE_STANDBY,
+	ADXRS290_MODE_MEASUREMENT,
+};
+
+enum adxrs290_scan_index {
+	ADXRS290_IDX_X,
+	ADXRS290_IDX_Y,
+	ADXRS290_IDX_TEMP,
+	ADXRS290_IDX_TS,
+};
+
+struct adxrs290_state {
+	struct spi_device	*spi;
+	/* Serialize reads and their subsequent processing */
+	struct mutex		lock;
+	enum adxrs290_mode	mode;
+	unsigned int		lpf_3db_freq_idx;
+	unsigned int		hpf_3db_freq_idx;
+	struct iio_trigger      *dready_trig;
+	/* Ensure correct alignment of timestamp when present */
+	struct {
+		s16 channels[3];
+		s64 ts __aligned(8);
+	} buffer;
+};
+
+/*
+ * Available cut-off frequencies of the low pass filter in Hz.
+ * The integer part and fractional part are represented separately.
+ */
+static const int adxrs290_lpf_3db_freq_hz_table[][2] = {
+	[0] = {480, 0},
+	[1] = {320, 0},
+	[2] = {160, 0},
+	[3] = {80, 0},
+	[4] = {56, 600000},
+	[5] = {40, 0},
+	[6] = {28, 300000},
+	[7] = {20, 0},
+};
+
+/*
+ * Available cut-off frequencies of the high pass filter in Hz.
+ * The integer part and fractional part are represented separately.
+ */
+static const int adxrs290_hpf_3db_freq_hz_table[][2] = {
+	[0] = {0, 0},
+	[1] = {0, 11000},
+	[2] = {0, 22000},
+	[3] = {0, 44000},
+	[4] = {0, 87000},
+	[5] = {0, 175000},
+	[6] = {0, 350000},
+	[7] = {0, 700000},
+	[8] = {1, 400000},
+	[9] = {2, 800000},
+	[10] = {11, 300000},
+};
+
+static int adxrs290_get_rate_data(struct iio_dev *indio_dev, const u8 cmd, int *val)
+{
+	struct adxrs290_state *st = iio_priv(indio_dev);
+	int ret = 0;
+	int temp;
+
+	mutex_lock(&st->lock);
+	temp = spi_w8r16(st->spi, cmd);
+	if (temp < 0) {
+		ret = temp;
+		goto err_unlock;
+	}
+
+	*val = temp;
+
+err_unlock:
+	mutex_unlock(&st->lock);
+	return ret;
+}
+
+static int adxrs290_get_temp_data(struct iio_dev *indio_dev, int *val)
+{
+	const u8 cmd = ADXRS290_READ_REG(ADXRS290_REG_TEMP0);
+	struct adxrs290_state *st = iio_priv(indio_dev);
+	int ret = 0;
+	int temp;
+
+	mutex_lock(&st->lock);
+	temp = spi_w8r16(st->spi, cmd);
+	if (temp < 0) {
+		ret = temp;
+		goto err_unlock;
+	}
+
+	/* extract lower 12 bits temperature reading */
+	*val = temp & 0x0FFF;
+
+err_unlock:
+	mutex_unlock(&st->lock);
+	return ret;
+}
+
+static int adxrs290_get_3db_freq(struct iio_dev *indio_dev, u8 *val, u8 *val2)
+{
+	const u8 cmd = ADXRS290_READ_REG(ADXRS290_REG_FILTER);
+	struct adxrs290_state *st = iio_priv(indio_dev);
+	int ret = 0;
+	short temp;
+
+	mutex_lock(&st->lock);
+	temp = spi_w8r8(st->spi, cmd);
+	if (temp < 0) {
+		ret = temp;
+		goto err_unlock;
+	}
+
+	*val = FIELD_GET(ADXRS290_LPF_MASK, temp);
+	*val2 = FIELD_GET(ADXRS290_HPF_MASK, temp);
+
+err_unlock:
+	mutex_unlock(&st->lock);
+	return ret;
+}
+
+static int adxrs290_spi_write_reg(struct spi_device *spi, const u8 reg,
+				  const u8 val)
+{
+	u8 buf[2];
+
+	buf[0] = reg;
+	buf[1] = val;
+
+	return spi_write_then_read(spi, buf, ARRAY_SIZE(buf), NULL, 0);
+}
+
+static int adxrs290_find_match(const int (*freq_tbl)[2], const int n,
+			       const int val, const int val2)
+{
+	int i;
+
+	for (i = 0; i < n; i++) {
+		if (freq_tbl[i][0] == val && freq_tbl[i][1] == val2)
+			return i;
+	}
+
+	return -EINVAL;
+}
+
+static int adxrs290_set_filter_freq(struct iio_dev *indio_dev,
+				    const unsigned int lpf_idx,
+				    const unsigned int hpf_idx)
+{
+	struct adxrs290_state *st = iio_priv(indio_dev);
+	u8 val;
+
+	val = ADXRS290_HPF(hpf_idx) | ADXRS290_LPF(lpf_idx);
+
+	return adxrs290_spi_write_reg(st->spi, ADXRS290_REG_FILTER, val);
+}
+
+static int adxrs290_set_mode(struct iio_dev *indio_dev, enum adxrs290_mode mode)
+{
+	struct adxrs290_state *st = iio_priv(indio_dev);
+	int val, ret;
+
+	if (st->mode == mode)
+		return 0;
+
+	mutex_lock(&st->lock);
+
+	ret = spi_w8r8(st->spi, ADXRS290_READ_REG(ADXRS290_REG_POWER_CTL));
+	if (ret < 0)
+		goto out_unlock;
+
+	val = ret;
+
+	switch (mode) {
+	case ADXRS290_MODE_STANDBY:
+		val &= ~ADXRS290_MEASUREMENT;
+		break;
+	case ADXRS290_MODE_MEASUREMENT:
+		val |= ADXRS290_MEASUREMENT;
+		break;
+	default:
+		ret = -EINVAL;
+		goto out_unlock;
+	}
+
+	ret = adxrs290_spi_write_reg(st->spi, ADXRS290_REG_POWER_CTL, val);
+	if (ret < 0) {
+		dev_err(&st->spi->dev, "unable to set mode: %d\n", ret);
+		goto out_unlock;
+	}
+
+	/* update cached mode */
+	st->mode = mode;
+
+out_unlock:
+	mutex_unlock(&st->lock);
+	return ret;
+}
+
+static void adxrs290_chip_off_action(void *data)
+{
+	struct iio_dev *indio_dev = data;
+
+	adxrs290_set_mode(indio_dev, ADXRS290_MODE_STANDBY);
+}
+
+static int adxrs290_initial_setup(struct iio_dev *indio_dev)
+{
+	struct adxrs290_state *st = iio_priv(indio_dev);
+	struct spi_device *spi = st->spi;
+	int ret;
+
+	ret = adxrs290_spi_write_reg(spi, ADXRS290_REG_POWER_CTL,
+				     ADXRS290_MEASUREMENT | ADXRS290_TSM);
+	if (ret < 0)
+		return ret;
+
+	st->mode = ADXRS290_MODE_MEASUREMENT;
+
+	return devm_add_action_or_reset(&spi->dev, adxrs290_chip_off_action,
+					indio_dev);
+}
+
+static int adxrs290_read_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     int *val,
+			     int *val2,
+			     long mask)
+{
+	struct adxrs290_state *st = iio_priv(indio_dev);
+	unsigned int t;
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		ret = iio_device_claim_direct_mode(indio_dev);
+		if (ret)
+			return ret;
+
+		switch (chan->type) {
+		case IIO_ANGL_VEL:
+			ret = adxrs290_get_rate_data(indio_dev,
+						     ADXRS290_READ_REG(chan->address),
+						     val);
+			if (ret < 0)
+				break;
+
+			ret = IIO_VAL_INT;
+			break;
+		case IIO_TEMP:
+			ret = adxrs290_get_temp_data(indio_dev, val);
+			if (ret < 0)
+				break;
+
+			ret = IIO_VAL_INT;
+			break;
+		default:
+			ret = -EINVAL;
+			break;
+		}
+
+		iio_device_release_direct_mode(indio_dev);
+		return ret;
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->type) {
+		case IIO_ANGL_VEL:
+			/* 1 LSB = 0.005 degrees/sec */
+			*val = 0;
+			*val2 = 87266;
+			return IIO_VAL_INT_PLUS_NANO;
+		case IIO_TEMP:
+			/* 1 LSB = 0.1 degrees Celsius */
+			*val = 100;
+			return IIO_VAL_INT;
+		default:
+			return -EINVAL;
+		}
+	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
+		switch (chan->type) {
+		case IIO_ANGL_VEL:
+			t = st->lpf_3db_freq_idx;
+			*val = adxrs290_lpf_3db_freq_hz_table[t][0];
+			*val2 = adxrs290_lpf_3db_freq_hz_table[t][1];
+			return IIO_VAL_INT_PLUS_MICRO;
+		default:
+			return -EINVAL;
+		}
+	case IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY:
+		switch (chan->type) {
+		case IIO_ANGL_VEL:
+			t = st->hpf_3db_freq_idx;
+			*val = adxrs290_hpf_3db_freq_hz_table[t][0];
+			*val2 = adxrs290_hpf_3db_freq_hz_table[t][1];
+			return IIO_VAL_INT_PLUS_MICRO;
+		default:
+			return -EINVAL;
+		}
+	}
+
+	return -EINVAL;
+}
+
+static int adxrs290_write_raw(struct iio_dev *indio_dev,
+			      struct iio_chan_spec const *chan,
+			      int val,
+			      int val2,
+			      long mask)
+{
+	struct adxrs290_state *st = iio_priv(indio_dev);
+	int ret, lpf_idx, hpf_idx;
+
+	ret = iio_device_claim_direct_mode(indio_dev);
+	if (ret)
+		return ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
+		lpf_idx = adxrs290_find_match(adxrs290_lpf_3db_freq_hz_table,
+					      ARRAY_SIZE(adxrs290_lpf_3db_freq_hz_table),
+					      val, val2);
+		if (lpf_idx < 0) {
+			ret = -EINVAL;
+			break;
+		}
+
+		/* caching the updated state of the low-pass filter */
+		st->lpf_3db_freq_idx = lpf_idx;
+		/* retrieving the current state of the high-pass filter */
+		hpf_idx = st->hpf_3db_freq_idx;
+		ret = adxrs290_set_filter_freq(indio_dev, lpf_idx, hpf_idx);
+		break;
+
+	case IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY:
+		hpf_idx = adxrs290_find_match(adxrs290_hpf_3db_freq_hz_table,
+					      ARRAY_SIZE(adxrs290_hpf_3db_freq_hz_table),
+					      val, val2);
+		if (hpf_idx < 0) {
+			ret = -EINVAL;
+			break;
+		}
+
+		/* caching the updated state of the high-pass filter */
+		st->hpf_3db_freq_idx = hpf_idx;
+		/* retrieving the current state of the low-pass filter */
+		lpf_idx = st->lpf_3db_freq_idx;
+		ret = adxrs290_set_filter_freq(indio_dev, lpf_idx, hpf_idx);
+		break;
+
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	iio_device_release_direct_mode(indio_dev);
+	return ret;
+}
+
+static int adxrs290_read_avail(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       const int **vals, int *type, int *length,
+			       long mask)
+{
+	switch (mask) {
+	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
+		*vals = (const int *)adxrs290_lpf_3db_freq_hz_table;
+		*type = IIO_VAL_INT_PLUS_MICRO;
+		/* Values are stored in a 2D matrix */
+		*length = ARRAY_SIZE(adxrs290_lpf_3db_freq_hz_table) * 2;
+
+		return IIO_AVAIL_LIST;
+	case IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY:
+		*vals = (const int *)adxrs290_hpf_3db_freq_hz_table;
+		*type = IIO_VAL_INT_PLUS_MICRO;
+		/* Values are stored in a 2D matrix */
+		*length = ARRAY_SIZE(adxrs290_hpf_3db_freq_hz_table) * 2;
+
+		return IIO_AVAIL_LIST;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int adxrs290_reg_access_rw(struct spi_device *spi, unsigned int reg,
+				  unsigned int *readval)
+{
+	int ret;
+
+	ret = spi_w8r8(spi, ADXRS290_READ_REG(reg));
+	if (ret < 0)
+		return ret;
+
+	*readval = ret;
+
+	return 0;
+}
+
+static int adxrs290_reg_access(struct iio_dev *indio_dev, unsigned int reg,
+			       unsigned int writeval, unsigned int *readval)
+{
+	struct adxrs290_state *st = iio_priv(indio_dev);
+
+	if (readval)
+		return adxrs290_reg_access_rw(st->spi, reg, readval);
+	else
+		return adxrs290_spi_write_reg(st->spi, reg, writeval);
+}
+
+static int adxrs290_data_rdy_trigger_set_state(struct iio_trigger *trig,
+					       bool state)
+{
+	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+	struct adxrs290_state *st = iio_priv(indio_dev);
+	int ret;
+	u8 val;
+
+	val = state ? ADXRS290_SYNC(ADXRS290_DATA_RDY_OUT) : 0;
+
+	ret = adxrs290_spi_write_reg(st->spi, ADXRS290_REG_DATA_RDY, val);
+	if (ret < 0)
+		dev_err(&st->spi->dev, "failed to start data rdy interrupt\n");
+
+	return ret;
+}
+
+static int adxrs290_reset_trig(struct iio_trigger *trig)
+{
+	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+	int val;
+
+	/*
+	 * Data ready interrupt is reset after a read of the data registers.
+	 * Here, we only read the 16b DATAY registers as that marks the end of
+	 * a read of the data registers and initiates a reset for the interrupt
+	 * line.
+	 */
+	adxrs290_get_rate_data(indio_dev,
+			       ADXRS290_READ_REG(ADXRS290_REG_DATAY0), &val);
+
+	return 0;
+}
+
+static const struct iio_trigger_ops adxrs290_trigger_ops = {
+	.set_trigger_state = &adxrs290_data_rdy_trigger_set_state,
+	.validate_device = &iio_trigger_validate_own_device,
+	.try_reenable = &adxrs290_reset_trig,
+};
+
+static irqreturn_t adxrs290_trigger_handler(int irq, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct adxrs290_state *st = iio_priv(indio_dev);
+	u8 tx = ADXRS290_READ_REG(ADXRS290_REG_DATAX0);
+	int ret;
+
+	mutex_lock(&st->lock);
+
+	/* exercise a bulk data capture starting from reg DATAX0... */
+	ret = spi_write_then_read(st->spi, &tx, sizeof(tx), st->buffer.channels,
+				  sizeof(st->buffer.channels));
+	if (ret < 0)
+		goto out_unlock_notify;
+
+	iio_push_to_buffers_with_timestamp(indio_dev, &st->buffer,
+					   pf->timestamp);
+
+out_unlock_notify:
+	mutex_unlock(&st->lock);
+	iio_trigger_notify_done(indio_dev->trig);
+
+	return IRQ_HANDLED;
+}
+
+#define ADXRS290_ANGL_VEL_CHANNEL(reg, axis) {				\
+	.type = IIO_ANGL_VEL,						\
+	.address = reg,							\
+	.modified = 1,							\
+	.channel2 = IIO_MOD_##axis,					\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),			\
+	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |		\
+	BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY) |		\
+	BIT(IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY),		\
+	.info_mask_shared_by_type_available =				\
+	BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY) |		\
+	BIT(IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY),		\
+	.scan_index = ADXRS290_IDX_##axis,				\
+	.scan_type = {                                                  \
+		.sign = 's',                                            \
+		.realbits = 16,                                         \
+		.storagebits = 16,                                      \
+		.endianness = IIO_LE,					\
+	},                                                              \
+}
+
+static const struct iio_chan_spec adxrs290_channels[] = {
+	ADXRS290_ANGL_VEL_CHANNEL(ADXRS290_REG_DATAX0, X),
+	ADXRS290_ANGL_VEL_CHANNEL(ADXRS290_REG_DATAY0, Y),
+	{
+		.type = IIO_TEMP,
+		.address = ADXRS290_REG_TEMP0,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+		BIT(IIO_CHAN_INFO_SCALE),
+		.scan_index = ADXRS290_IDX_TEMP,
+		.scan_type = {
+			.sign = 's',
+			.realbits = 12,
+			.storagebits = 16,
+			.endianness = IIO_LE,
+		},
+	},
+	IIO_CHAN_SOFT_TIMESTAMP(ADXRS290_IDX_TS),
+};
+
+static const unsigned long adxrs290_avail_scan_masks[] = {
+	BIT(ADXRS290_IDX_X) | BIT(ADXRS290_IDX_Y) | BIT(ADXRS290_IDX_TEMP),
+	0
+};
+
+static const struct iio_info adxrs290_info = {
+	.read_raw = &adxrs290_read_raw,
+	.write_raw = &adxrs290_write_raw,
+	.read_avail = &adxrs290_read_avail,
+	.debugfs_reg_access = &adxrs290_reg_access,
+};
+
+static int adxrs290_probe_trigger(struct iio_dev *indio_dev)
+{
+	struct adxrs290_state *st = iio_priv(indio_dev);
+	int ret;
+
+	if (!st->spi->irq) {
+		dev_info(&st->spi->dev, "no irq, using polling\n");
+		return 0;
+	}
+
+	st->dready_trig = devm_iio_trigger_alloc(&st->spi->dev, "%s-dev%d",
+						 indio_dev->name,
+						 indio_dev->id);
+	if (!st->dready_trig)
+		return -ENOMEM;
+
+	st->dready_trig->dev.parent = &st->spi->dev;
+	st->dready_trig->ops = &adxrs290_trigger_ops;
+	iio_trigger_set_drvdata(st->dready_trig, indio_dev);
+
+	ret = devm_request_irq(&st->spi->dev, st->spi->irq,
+			       &iio_trigger_generic_data_rdy_poll,
+			       IRQF_ONESHOT, "adxrs290_irq", st->dready_trig);
+	if (ret < 0)
+		return dev_err_probe(&st->spi->dev, ret,
+				     "request irq %d failed\n", st->spi->irq);
+
+	ret = devm_iio_trigger_register(&st->spi->dev, st->dready_trig);
+	if (ret) {
+		dev_err(&st->spi->dev, "iio trigger register failed\n");
+		return ret;
+	}
+
+	indio_dev->trig = iio_trigger_get(st->dready_trig);
+
+	return 0;
+}
+
+static int adxrs290_probe(struct spi_device *spi)
+{
+	struct iio_dev *indio_dev;
+	struct adxrs290_state *st;
+	u8 val, val2;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	st = iio_priv(indio_dev);
+	st->spi = spi;
+
+	indio_dev->name = "adxrs290";
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = adxrs290_channels;
+	indio_dev->num_channels = ARRAY_SIZE(adxrs290_channels);
+	indio_dev->info = &adxrs290_info;
+	indio_dev->available_scan_masks = adxrs290_avail_scan_masks;
+
+	mutex_init(&st->lock);
+
+	val = spi_w8r8(spi, ADXRS290_READ_REG(ADXRS290_REG_ADI_ID));
+	if (val != ADXRS290_ADI_ID) {
+		dev_err(&spi->dev, "Wrong ADI ID 0x%02x\n", val);
+		return -ENODEV;
+	}
+
+	val = spi_w8r8(spi, ADXRS290_READ_REG(ADXRS290_REG_MEMS_ID));
+	if (val != ADXRS290_MEMS_ID) {
+		dev_err(&spi->dev, "Wrong MEMS ID 0x%02x\n", val);
+		return -ENODEV;
+	}
+
+	val = spi_w8r8(spi, ADXRS290_READ_REG(ADXRS290_REG_DEV_ID));
+	if (val != ADXRS290_DEV_ID) {
+		dev_err(&spi->dev, "Wrong DEV ID 0x%02x\n", val);
+		return -ENODEV;
+	}
+
+	/* default mode the gyroscope starts in */
+	st->mode = ADXRS290_MODE_STANDBY;
+
+	/* switch to measurement mode and switch on the temperature sensor */
+	ret = adxrs290_initial_setup(indio_dev);
+	if (ret < 0)
+		return ret;
+
+	/* max transition time to measurement mode */
+	msleep(ADXRS290_MAX_TRANSITION_TIME_MS);
+
+	ret = adxrs290_get_3db_freq(indio_dev, &val, &val2);
+	if (ret < 0)
+		return ret;
+
+	st->lpf_3db_freq_idx = val;
+	st->hpf_3db_freq_idx = val2;
+
+	ret = devm_iio_triggered_buffer_setup(&spi->dev, indio_dev,
+					      &iio_pollfunc_store_time,
+					      &adxrs290_trigger_handler, NULL);
+	if (ret < 0)
+		return dev_err_probe(&spi->dev, ret,
+				     "iio triggered buffer setup failed\n");
+
+	ret = adxrs290_probe_trigger(indio_dev);
+	if (ret < 0)
+		return ret;
+
+	return devm_iio_device_register(&spi->dev, indio_dev);
+}
+
+static const struct of_device_id adxrs290_of_match[] = {
+	{ .compatible = "adi,adxrs290" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, adxrs290_of_match);
+
+static struct spi_driver adxrs290_driver = {
+	.driver = {
+		.name = "adxrs290",
+		.of_match_table = adxrs290_of_match,
+	},
+	.probe = adxrs290_probe,
+};
+module_spi_driver(adxrs290_driver);
+
+MODULE_AUTHOR("Nishant Malpani <nish.malpani25@gmail.com>");
+MODULE_DESCRIPTION("Analog Devices ADXRS290 Gyroscope SPI driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c
index d3fbe9d86467..1c3c1bd53374 100644
--- a/drivers/iio/gyro/itg3200_buffer.c
+++ b/drivers/iio/gyro/itg3200_buffer.c
@@ -46,13 +46,20 @@ static irqreturn_t itg3200_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct itg3200 *st = iio_priv(indio_dev);
-	__be16 buf[ITG3200_SCAN_ELEMENTS + sizeof(s64)/sizeof(u16)];
-
-	int ret = itg3200_read_all_channels(st->i2c, buf);
+	/*
+	 * Ensure correct alignment and padding including for the
+	 * timestamp that may be inserted.
+	 */
+	struct {
+		__be16 buf[ITG3200_SCAN_ELEMENTS];
+		s64 ts __aligned(8);
+	} scan;
+
+	int ret = itg3200_read_all_channels(st->i2c, scan.buf);
 	if (ret < 0)
 		goto error_ret;
 
-	iio_push_to_buffers_with_timestamp(indio_dev, buf, pf->timestamp);
+	iio_push_to_buffers_with_timestamp(indio_dev, &scan, pf->timestamp);
 
 	iio_trigger_notify_done(indio_dev->trig);
 
diff --git a/drivers/iio/health/max30102.c b/drivers/iio/health/max30102.c
index d9b2ed80882a..b35557a54ee2 100644
--- a/drivers/iio/health/max30102.c
+++ b/drivers/iio/health/max30102.c
@@ -2,7 +2,7 @@
 /*
  * max30102.c - Support for MAX30102 heart rate and pulse oximeter sensor
  *
- * Copyright (C) 2017 Matt Ranostay <matt@ranostay.consulting>
+ * Copyright (C) 2017 Matt Ranostay <matt.ranostay@konsulko.com>
  *
  * Support for MAX30105 optical particle sensor
  * Copyright (C) 2017 Peter Meerwald-Stadler <pmeerw@pmeerw.net>
@@ -19,7 +19,7 @@
 #include <linux/irq.h>
 #include <linux/i2c.h>
 #include <linux/mutex.h>
-#include <linux/of.h>
+#include <linux/mod_devicetable.h>
 #include <linux/regmap.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/buffer.h>
@@ -323,11 +323,10 @@ static int max30102_get_current_idx(unsigned int val, int *reg)
 static int max30102_led_init(struct max30102_data *data)
 {
 	struct device *dev = &data->client->dev;
-	struct device_node *np = dev->of_node;
 	unsigned int val;
 	int reg, ret;
 
-	ret = of_property_read_u32(np, "maxim,red-led-current-microamp", &val);
+	ret = device_property_read_u32(dev, "maxim,red-led-current-microamp", &val);
 	if (ret) {
 		dev_info(dev, "no red-led-current-microamp set\n");
 
@@ -346,7 +345,7 @@ static int max30102_led_init(struct max30102_data *data)
 		return ret;
 
 	if (data->chip_id == max30105) {
-		ret = of_property_read_u32(np,
+		ret = device_property_read_u32(dev,
 			"maxim,green-led-current-microamp", &val);
 		if (ret) {
 			dev_info(dev, "no green-led-current-microamp set\n");
@@ -368,7 +367,7 @@ static int max30102_led_init(struct max30102_data *data)
 			return ret;
 	}
 
-	ret = of_property_read_u32(np, "maxim,ir-led-current-microamp", &val);
+	ret = device_property_read_u32(dev, "maxim,ir-led-current-microamp", &val);
 	if (ret) {
 		dev_info(dev, "no ir-led-current-microamp set\n");
 
@@ -624,7 +623,7 @@ MODULE_DEVICE_TABLE(of, max30102_dt_ids);
 static struct i2c_driver max30102_driver = {
 	.driver = {
 		.name	= MAX30102_DRV_NAME,
-		.of_match_table	= of_match_ptr(max30102_dt_ids),
+		.of_match_table	= max30102_dt_ids,
 	},
 	.probe		= max30102_probe,
 	.remove		= max30102_remove,
@@ -632,6 +631,6 @@ static struct i2c_driver max30102_driver = {
 };
 module_i2c_driver(max30102_driver);
 
-MODULE_AUTHOR("Matt Ranostay <matt@ranostay.consulting>");
+MODULE_AUTHOR("Matt Ranostay <matt.ranostay@konsulko.com>");
 MODULE_DESCRIPTION("MAX30102 heart rate/pulse oximeter and MAX30105 particle sensor driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/iio/humidity/Kconfig b/drivers/iio/humidity/Kconfig
index 6c5507a6cd74..6549fcf6db69 100644
--- a/drivers/iio/humidity/Kconfig
+++ b/drivers/iio/humidity/Kconfig
@@ -38,6 +38,16 @@ config HDC100X
 	  To compile this driver as a module, choose M here: the module
 	  will be called hdc100x.
 
+config HDC2010
+	tristate "TI HDC2010 relative humidity and temperature sensor"
+	depends on I2C
+	help
+	  Say yes here to build support for the Texas Instruments
+	  HDC2010 and HDC2080 relative humidity and temperature sensors.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called hdc2010.
+
 config HID_SENSOR_HUMIDITY
 	tristate "HID Environmental humidity sensor"
 	depends on HID_SENSOR_HUB
diff --git a/drivers/iio/humidity/Makefile b/drivers/iio/humidity/Makefile
index ae4204995017..f19ff3de97c5 100644
--- a/drivers/iio/humidity/Makefile
+++ b/drivers/iio/humidity/Makefile
@@ -6,6 +6,7 @@
 obj-$(CONFIG_AM2315) += am2315.o
 obj-$(CONFIG_DHT11) += dht11.o
 obj-$(CONFIG_HDC100X) += hdc100x.o
+obj-$(CONFIG_HDC2010) += hdc2010.o
 obj-$(CONFIG_HID_SENSOR_HUMIDITY) += hid-sensor-humidity.o
 
 hts221-y := hts221_core.o \
diff --git a/drivers/iio/humidity/hdc100x.c b/drivers/iio/humidity/hdc100x.c
index 071cb2b12bb6..2a957f19048e 100644
--- a/drivers/iio/humidity/hdc100x.c
+++ b/drivers/iio/humidity/hdc100x.c
@@ -15,6 +15,7 @@
 
 #include <linux/delay.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
 
@@ -417,7 +418,7 @@ MODULE_DEVICE_TABLE(of, hdc100x_dt_ids);
 static struct i2c_driver hdc100x_driver = {
 	.driver = {
 		.name	= "hdc100x",
-		.of_match_table = of_match_ptr(hdc100x_dt_ids),
+		.of_match_table = hdc100x_dt_ids,
 	},
 	.probe = hdc100x_probe,
 	.id_table = hdc100x_id,
diff --git a/drivers/iio/humidity/hdc2010.c b/drivers/iio/humidity/hdc2010.c
new file mode 100644
index 000000000000..83f5b9f60780
--- /dev/null
+++ b/drivers/iio/humidity/hdc2010.c
@@ -0,0 +1,353 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * hdc2010.c - Support for the TI HDC2010 and HDC2080
+ * temperature + relative humidity sensors
+ *
+ * Copyright (C) 2020 Norphonic AS
+ * Author: Eugene Zaikonnikov <ez@norphonic.com>
+ *
+ * Datasheet: https://www.ti.com/product/HDC2010/datasheet
+ * Datasheet: https://www.ti.com/product/HDC2080/datasheet
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/bitops.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+
+#define HDC2010_REG_TEMP_LOW			0x00
+#define HDC2010_REG_TEMP_HIGH			0x01
+#define HDC2010_REG_HUMIDITY_LOW		0x02
+#define HDC2010_REG_HUMIDITY_HIGH		0x03
+#define HDC2010_REG_INTERRUPT_DRDY		0x04
+#define HDC2010_REG_TEMP_MAX			0x05
+#define HDC2010_REG_HUMIDITY_MAX		0x06
+#define HDC2010_REG_INTERRUPT_EN		0x07
+#define HDC2010_REG_TEMP_OFFSET_ADJ		0x08
+#define HDC2010_REG_HUMIDITY_OFFSET_ADJ		0x09
+#define HDC2010_REG_TEMP_THR_L			0x0a
+#define HDC2010_REG_TEMP_THR_H			0x0b
+#define HDC2010_REG_RH_THR_L			0x0c
+#define HDC2010_REG_RH_THR_H			0x0d
+#define HDC2010_REG_RESET_DRDY_INT_CONF		0x0e
+#define HDC2010_REG_MEASUREMENT_CONF		0x0f
+
+#define HDC2010_MEAS_CONF			GENMASK(2, 1)
+#define HDC2010_MEAS_TRIG			BIT(0)
+#define HDC2010_HEATER_EN			BIT(3)
+#define HDC2010_AMM				GENMASK(6, 4)
+
+struct hdc2010_data {
+	struct i2c_client *client;
+	struct mutex lock;
+	u8 measurement_config;
+	u8 interrupt_config;
+	u8 drdy_config;
+};
+
+enum hdc2010_addr_groups {
+	HDC2010_GROUP_TEMP = 0,
+	HDC2010_GROUP_HUMIDITY,
+};
+
+struct hdc2010_reg_record {
+	unsigned long primary;
+	unsigned long peak;
+};
+
+static const struct hdc2010_reg_record hdc2010_reg_translation[] = {
+	[HDC2010_GROUP_TEMP] = {
+		.primary = HDC2010_REG_TEMP_LOW,
+		.peak = HDC2010_REG_TEMP_MAX,
+	},
+	[HDC2010_GROUP_HUMIDITY] = {
+		.primary = HDC2010_REG_HUMIDITY_LOW,
+		.peak = HDC2010_REG_HUMIDITY_MAX,
+	},
+};
+
+static IIO_CONST_ATTR(out_current_heater_raw_available, "0 1");
+
+static struct attribute *hdc2010_attributes[] = {
+	&iio_const_attr_out_current_heater_raw_available.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group hdc2010_attribute_group = {
+	.attrs = hdc2010_attributes,
+};
+
+static const struct iio_chan_spec hdc2010_channels[] = {
+	{
+		.type = IIO_TEMP,
+		.address = HDC2010_GROUP_TEMP,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+			BIT(IIO_CHAN_INFO_PEAK) |
+			BIT(IIO_CHAN_INFO_OFFSET) |
+			BIT(IIO_CHAN_INFO_SCALE),
+	},
+	{
+		.type = IIO_HUMIDITYRELATIVE,
+		.address = HDC2010_GROUP_HUMIDITY,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+			BIT(IIO_CHAN_INFO_PEAK) |
+			BIT(IIO_CHAN_INFO_SCALE),
+	},
+	{
+		.type = IIO_CURRENT,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		.extend_name = "heater",
+		.output = 1,
+	},
+};
+
+static int hdc2010_update_drdy_config(struct hdc2010_data *data,
+					     char mask, char val)
+{
+	u8 tmp = (~mask & data->drdy_config) | val;
+	int ret;
+
+	ret = i2c_smbus_write_byte_data(data->client,
+					HDC2010_REG_RESET_DRDY_INT_CONF, tmp);
+	if (ret)
+		return ret;
+
+	data->drdy_config = tmp;
+
+	return 0;
+}
+
+static int hdc2010_get_prim_measurement_word(struct hdc2010_data *data,
+					     struct iio_chan_spec const *chan)
+{
+	struct i2c_client *client = data->client;
+	s32 ret;
+
+	ret = i2c_smbus_read_word_data(client,
+			hdc2010_reg_translation[chan->address].primary);
+
+	if (ret < 0)
+		dev_err(&client->dev, "Could not read sensor measurement word\n");
+
+	return ret;
+}
+
+static int hdc2010_get_peak_measurement_byte(struct hdc2010_data *data,
+					     struct iio_chan_spec const *chan)
+{
+	struct i2c_client *client = data->client;
+	s32 ret;
+
+	ret = i2c_smbus_read_byte_data(client,
+			hdc2010_reg_translation[chan->address].peak);
+
+	if (ret < 0)
+		dev_err(&client->dev, "Could not read sensor measurement byte\n");
+
+	return ret;
+}
+
+static int hdc2010_get_heater_status(struct hdc2010_data *data)
+{
+	return !!(data->drdy_config & HDC2010_HEATER_EN);
+}
+
+static int hdc2010_read_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan, int *val,
+			    int *val2, long mask)
+{
+	struct hdc2010_data *data = iio_priv(indio_dev);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW: {
+		int ret;
+
+		if (chan->type == IIO_CURRENT) {
+			*val = hdc2010_get_heater_status(data);
+			return IIO_VAL_INT;
+		}
+		ret = iio_device_claim_direct_mode(indio_dev);
+		if (ret)
+			return ret;
+		mutex_lock(&data->lock);
+		ret = hdc2010_get_prim_measurement_word(data, chan);
+		mutex_unlock(&data->lock);
+		iio_device_release_direct_mode(indio_dev);
+		if (ret < 0)
+			return ret;
+		*val = ret;
+		return IIO_VAL_INT;
+	}
+	case IIO_CHAN_INFO_PEAK: {
+		int ret;
+
+		ret = iio_device_claim_direct_mode(indio_dev);
+		if (ret)
+			return ret;
+		mutex_lock(&data->lock);
+		ret = hdc2010_get_peak_measurement_byte(data, chan);
+		mutex_unlock(&data->lock);
+		iio_device_release_direct_mode(indio_dev);
+		if (ret < 0)
+			return ret;
+		/* Scaling up the value so we can use same offset as RAW */
+		*val = ret * 256;
+		return IIO_VAL_INT;
+	}
+	case IIO_CHAN_INFO_SCALE:
+		*val2 = 65536;
+		if (chan->type == IIO_TEMP)
+			*val = 165000;
+		else
+			*val = 100000;
+		return IIO_VAL_FRACTIONAL;
+	case IIO_CHAN_INFO_OFFSET:
+		*val = -15887;
+		*val2 = 515151;
+		return IIO_VAL_INT_PLUS_MICRO;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int hdc2010_write_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     int val, int val2, long mask)
+{
+	struct hdc2010_data *data = iio_priv(indio_dev);
+	int new, ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		if (chan->type != IIO_CURRENT || val2 != 0)
+			return -EINVAL;
+
+		switch (val) {
+		case 1:
+			new = HDC2010_HEATER_EN;
+			break;
+		case 0:
+			new = 0;
+			break;
+		default:
+			return -EINVAL;
+		}
+
+		mutex_lock(&data->lock);
+		ret = hdc2010_update_drdy_config(data, HDC2010_HEATER_EN, new);
+		mutex_unlock(&data->lock);
+		return ret;
+	default:
+		return -EINVAL;
+	}
+}
+
+static const struct iio_info hdc2010_info = {
+	.read_raw = hdc2010_read_raw,
+	.write_raw = hdc2010_write_raw,
+	.attrs = &hdc2010_attribute_group,
+};
+
+static int hdc2010_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct iio_dev *indio_dev;
+	struct hdc2010_data *data;
+	u8 tmp;
+	int ret;
+
+	if (!i2c_check_functionality(client->adapter,
+	    I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_BYTE | I2C_FUNC_I2C))
+		return -EOPNOTSUPP;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	data = iio_priv(indio_dev);
+	i2c_set_clientdata(client, indio_dev);
+	data->client = client;
+	mutex_init(&data->lock);
+
+	indio_dev->dev.parent = &client->dev;
+	/*
+	 * As DEVICE ID register does not differentiate between
+	 * HDC2010 and HDC2080, we have the name hardcoded
+	 */
+	indio_dev->name = "hdc2010";
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->info = &hdc2010_info;
+
+	indio_dev->channels = hdc2010_channels;
+	indio_dev->num_channels = ARRAY_SIZE(hdc2010_channels);
+
+	/* Enable Automatic Measurement Mode at 5Hz */
+	ret = hdc2010_update_drdy_config(data, HDC2010_AMM, HDC2010_AMM);
+	if (ret)
+		return ret;
+
+	/*
+	 * We enable both temp and humidity measurement.
+	 * However the measurement won't start even in AMM until triggered.
+	 */
+	tmp = (data->measurement_config & ~HDC2010_MEAS_CONF) |
+		HDC2010_MEAS_TRIG;
+
+	ret = i2c_smbus_write_byte_data(client, HDC2010_REG_MEASUREMENT_CONF, tmp);
+	if (ret) {
+		dev_warn(&client->dev, "Unable to set up measurement\n");
+		if (hdc2010_update_drdy_config(data, HDC2010_AMM, 0))
+			dev_warn(&client->dev, "Unable to restore default AMM\n");
+		return ret;
+	}
+
+	data->measurement_config = tmp;
+
+	return iio_device_register(indio_dev);
+}
+
+static int hdc2010_remove(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+	struct hdc2010_data *data = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+
+	/* Disable Automatic Measurement Mode */
+	if (hdc2010_update_drdy_config(data, HDC2010_AMM, 0))
+		dev_warn(&client->dev, "Unable to restore default AMM\n");
+
+	return 0;
+}
+
+static const struct i2c_device_id hdc2010_id[] = {
+	{ "hdc2010" },
+	{ "hdc2080" },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, hdc2010_id);
+
+static const struct of_device_id hdc2010_dt_ids[] = {
+	{ .compatible = "ti,hdc2010" },
+	{ .compatible = "ti,hdc2080" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, hdc2010_dt_ids);
+
+static struct i2c_driver hdc2010_driver = {
+	.driver = {
+		.name	= "hdc2010",
+		.of_match_table = hdc2010_dt_ids,
+	},
+	.probe = hdc2010_probe,
+	.remove = hdc2010_remove,
+	.id_table = hdc2010_id,
+};
+module_i2c_driver(hdc2010_driver);
+
+MODULE_AUTHOR("Eugene Zaikonnikov <ez@norphonic.com>");
+MODULE_DESCRIPTION("TI HDC2010 humidity and temperature sensor driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/iio/humidity/htu21.c b/drivers/iio/humidity/htu21.c
index 4f5d9d1c05ab..36df2a102ca4 100644
--- a/drivers/iio/humidity/htu21.c
+++ b/drivers/iio/humidity/htu21.c
@@ -19,6 +19,7 @@
 #include <linux/kernel.h>
 #include <linux/stat.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
 
@@ -247,7 +248,7 @@ static struct i2c_driver htu21_driver = {
 	.id_table = htu21_id,
 	.driver = {
 		   .name = "htu21",
-		   .of_match_table = of_match_ptr(htu21_of_match),
+		   .of_match_table = htu21_of_match,
 		   },
 };
 
diff --git a/drivers/iio/humidity/si7020.c b/drivers/iio/humidity/si7020.c
index a09b5773d377..ab6537f136ba 100644
--- a/drivers/iio/humidity/si7020.c
+++ b/drivers/iio/humidity/si7020.c
@@ -20,6 +20,7 @@
 #include <linux/delay.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/slab.h>
 #include <linux/sysfs.h>
 
@@ -153,7 +154,7 @@ MODULE_DEVICE_TABLE(of, si7020_dt_ids);
 static struct i2c_driver si7020_driver = {
 	.driver = {
 		.name = "si7020",
-		.of_match_table = of_match_ptr(si7020_dt_ids),
+		.of_match_table = si7020_dt_ids,
 	},
 	.probe		= si7020_probe,
 	.id_table	= si7020_id,
diff --git a/drivers/iio/iio_core_trigger.h b/drivers/iio/iio_core_trigger.h
index 9d1a92cc6480..374816bc3e73 100644
--- a/drivers/iio/iio_core_trigger.h
+++ b/drivers/iio/iio_core_trigger.h
@@ -30,7 +30,7 @@ int iio_trigger_detach_poll_func(struct iio_trigger *trig,
  * iio_device_register_trigger_consumer() - set up an iio_dev to use triggers
  * @indio_dev: iio_dev associated with the device that will consume the trigger
  **/
-static int iio_device_register_trigger_consumer(struct iio_dev *indio_dev)
+static inline int iio_device_register_trigger_consumer(struct iio_dev *indio_dev)
 {
 	return 0;
 }
@@ -39,7 +39,7 @@ static int iio_device_register_trigger_consumer(struct iio_dev *indio_dev)
  * iio_device_unregister_trigger_consumer() - reverse the registration process
  * @indio_dev: iio_dev associated with the device that consumed the trigger
  **/
-static void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev)
+static inline void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev)
 {
 }
 
diff --git a/drivers/iio/imu/adis16400.c b/drivers/iio/imu/adis16400.c
index 1ebe3e50d3e6..54af2ed664f6 100644
--- a/drivers/iio/imu/adis16400.c
+++ b/drivers/iio/imu/adis16400.c
@@ -173,6 +173,8 @@ struct adis16400_chip_info {
  * @variant:	chip variant info
  * @filt_int:	integer part of requested filter frequency
  * @adis:	adis device
+ * @avail_scan_mask:	NULL terminated array of bitmaps of channels
+ *			that must be enabled together
  **/
 struct adis16400_state {
 	struct adis16400_chip_info	*variant;
@@ -317,11 +319,6 @@ enum adis16400_chip_variant {
 	ADIS16448,
 };
 
-static struct adis_burst adis16400_burst = {
-	.en = true,
-	.reg_cmd = ADIS16400_GLOB_CMD,
-};
-
 static int adis16334_get_freq(struct adis16400_state *st)
 {
 	int ret;
@@ -947,7 +944,7 @@ static const char * const adis16400_status_error_msgs[] = {
 	[ADIS16400_DIAG_STAT_POWER_LOW] = "Power supply below 4.75V",
 };
 
-#define ADIS16400_DATA(_timeouts)					\
+#define ADIS16400_DATA(_timeouts, _burst_len)				\
 {									\
 	.msc_ctrl_reg = ADIS16400_MSC_CTRL,				\
 	.glob_cmd_reg = ADIS16400_GLOB_CMD,				\
@@ -973,6 +970,8 @@ static const char * const adis16400_status_error_msgs[] = {
 		BIT(ADIS16400_DIAG_STAT_POWER_HIGH) |			\
 		BIT(ADIS16400_DIAG_STAT_POWER_LOW),			\
 	.timeouts = (_timeouts),					\
+	.burst_reg_cmd = ADIS16400_GLOB_CMD,				\
+	.burst_len = (_burst_len)					\
 }
 
 static const struct adis_timeout adis16300_timeouts = {
@@ -1023,7 +1022,7 @@ static struct adis16400_chip_info adis16400_chips[] = {
 		.temp_offset = 25000000 / 140000, /* 25 C = 0x00 */
 		.set_freq = adis16400_set_freq,
 		.get_freq = adis16400_get_freq,
-		.adis_data = ADIS16400_DATA(&adis16300_timeouts),
+		.adis_data = ADIS16400_DATA(&adis16300_timeouts, 18),
 	},
 	[ADIS16334] = {
 		.channels = adis16334_channels,
@@ -1036,7 +1035,7 @@ static struct adis16400_chip_info adis16400_chips[] = {
 		.temp_offset = 25000000 / 67850, /* 25 C = 0x00 */
 		.set_freq = adis16334_set_freq,
 		.get_freq = adis16334_get_freq,
-		.adis_data = ADIS16400_DATA(&adis16334_timeouts),
+		.adis_data = ADIS16400_DATA(&adis16334_timeouts, 0),
 	},
 	[ADIS16350] = {
 		.channels = adis16350_channels,
@@ -1048,7 +1047,7 @@ static struct adis16400_chip_info adis16400_chips[] = {
 		.flags = ADIS16400_NO_BURST | ADIS16400_HAS_SLOW_MODE,
 		.set_freq = adis16400_set_freq,
 		.get_freq = adis16400_get_freq,
-		.adis_data = ADIS16400_DATA(&adis16300_timeouts),
+		.adis_data = ADIS16400_DATA(&adis16300_timeouts, 0),
 	},
 	[ADIS16360] = {
 		.channels = adis16350_channels,
@@ -1061,7 +1060,7 @@ static struct adis16400_chip_info adis16400_chips[] = {
 		.temp_offset = 25000000 / 136000, /* 25 C = 0x00 */
 		.set_freq = adis16400_set_freq,
 		.get_freq = adis16400_get_freq,
-		.adis_data = ADIS16400_DATA(&adis16300_timeouts),
+		.adis_data = ADIS16400_DATA(&adis16300_timeouts, 28),
 	},
 	[ADIS16362] = {
 		.channels = adis16350_channels,
@@ -1074,7 +1073,7 @@ static struct adis16400_chip_info adis16400_chips[] = {
 		.temp_offset = 25000000 / 136000, /* 25 C = 0x00 */
 		.set_freq = adis16400_set_freq,
 		.get_freq = adis16400_get_freq,
-		.adis_data = ADIS16400_DATA(&adis16362_timeouts),
+		.adis_data = ADIS16400_DATA(&adis16362_timeouts, 28),
 	},
 	[ADIS16364] = {
 		.channels = adis16350_channels,
@@ -1087,7 +1086,7 @@ static struct adis16400_chip_info adis16400_chips[] = {
 		.temp_offset = 25000000 / 136000, /* 25 C = 0x00 */
 		.set_freq = adis16400_set_freq,
 		.get_freq = adis16400_get_freq,
-		.adis_data = ADIS16400_DATA(&adis16362_timeouts),
+		.adis_data = ADIS16400_DATA(&adis16362_timeouts, 28),
 	},
 	[ADIS16367] = {
 		.channels = adis16350_channels,
@@ -1100,7 +1099,7 @@ static struct adis16400_chip_info adis16400_chips[] = {
 		.temp_offset = 25000000 / 136000, /* 25 C = 0x00 */
 		.set_freq = adis16400_set_freq,
 		.get_freq = adis16400_get_freq,
-		.adis_data = ADIS16400_DATA(&adis16300_timeouts),
+		.adis_data = ADIS16400_DATA(&adis16300_timeouts, 28),
 	},
 	[ADIS16400] = {
 		.channels = adis16400_channels,
@@ -1112,7 +1111,7 @@ static struct adis16400_chip_info adis16400_chips[] = {
 		.temp_offset = 25000000 / 140000, /* 25 C = 0x00 */
 		.set_freq = adis16400_set_freq,
 		.get_freq = adis16400_get_freq,
-		.adis_data = ADIS16400_DATA(&adis16400_timeouts),
+		.adis_data = ADIS16400_DATA(&adis16400_timeouts, 24),
 	},
 	[ADIS16445] = {
 		.channels = adis16445_channels,
@@ -1126,7 +1125,7 @@ static struct adis16400_chip_info adis16400_chips[] = {
 		.temp_offset = 31000000 / 73860, /* 31 C = 0x00 */
 		.set_freq = adis16334_set_freq,
 		.get_freq = adis16334_get_freq,
-		.adis_data = ADIS16400_DATA(&adis16445_timeouts),
+		.adis_data = ADIS16400_DATA(&adis16445_timeouts, 16),
 	},
 	[ADIS16448] = {
 		.channels = adis16448_channels,
@@ -1140,7 +1139,7 @@ static struct adis16400_chip_info adis16400_chips[] = {
 		.temp_offset = 31000000 / 73860, /* 31 C = 0x00 */
 		.set_freq = adis16334_set_freq,
 		.get_freq = adis16334_get_freq,
-		.adis_data = ADIS16400_DATA(&adis16448_timeouts),
+		.adis_data = ADIS16400_DATA(&adis16448_timeouts, 24),
 	}
 };
 
@@ -1164,6 +1163,12 @@ static void adis16400_setup_chan_mask(struct adis16400_state *st)
 			st->avail_scan_mask[0] |= BIT(ch->scan_index);
 	}
 }
+
+static void adis16400_stop(void *data)
+{
+	adis16400_stop_device(data);
+}
+
 static int adis16400_probe(struct spi_device *spi)
 {
 	struct adis16400_state *st;
@@ -1190,9 +1195,6 @@ static int adis16400_probe(struct spi_device *spi)
 	if (!(st->variant->flags & ADIS16400_NO_BURST)) {
 		adis16400_setup_chan_mask(st);
 		indio_dev->available_scan_masks = st->avail_scan_mask;
-		st->adis.burst = &adis16400_burst;
-		if (st->variant->flags & ADIS16400_BURST_DIAG_STAT)
-			st->adis.burst_extra_len = sizeof(u16);
 	}
 
 	adis16400_data = &st->variant->adis_data;
@@ -1201,37 +1203,24 @@ static int adis16400_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = adis_setup_buffer_and_trigger(&st->adis, indio_dev,
-			adis16400_trigger_handler);
+	ret = devm_adis_setup_buffer_and_trigger(&st->adis, indio_dev, adis16400_trigger_handler);
 	if (ret)
 		return ret;
 
 	/* Get the device into a sane initial state */
 	ret = adis16400_initial_setup(indio_dev);
 	if (ret)
-		goto error_cleanup_buffer;
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_cleanup_buffer;
-
-	adis16400_debugfs_init(indio_dev);
-	return 0;
-
-error_cleanup_buffer:
-	adis_cleanup_buffer_and_trigger(&st->adis, indio_dev);
-	return ret;
-}
-
-static int adis16400_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct adis16400_state *st = iio_priv(indio_dev);
+		return ret;
 
-	iio_device_unregister(indio_dev);
-	adis16400_stop_device(indio_dev);
+	ret = devm_add_action_or_reset(&spi->dev, adis16400_stop, indio_dev);
+	if (ret)
+		return ret;
 
-	adis_cleanup_buffer_and_trigger(&st->adis, indio_dev);
+	ret = devm_iio_device_register(&spi->dev, indio_dev);
+	if (ret)
+		return ret;
 
+	adis16400_debugfs_init(indio_dev);
 	return 0;
 }
 
@@ -1261,7 +1250,6 @@ static struct spi_driver adis16400_driver = {
 	},
 	.id_table = adis16400_id,
 	.probe = adis16400_probe,
-	.remove = adis16400_remove,
 };
 module_spi_driver(adis16400_driver);
 
diff --git a/drivers/iio/imu/adis16460.c b/drivers/iio/imu/adis16460.c
index b26a5f1bc51a..74a161e39733 100644
--- a/drivers/iio/imu/adis16460.c
+++ b/drivers/iio/imu/adis16460.c
@@ -403,7 +403,7 @@ static int adis16460_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = adis_setup_buffer_and_trigger(&st->adis, indio_dev, NULL);
+	ret = devm_adis_setup_buffer_and_trigger(&st->adis, indio_dev, NULL);
 	if (ret)
 		return ret;
 
@@ -411,31 +411,15 @@ static int adis16460_probe(struct spi_device *spi)
 
 	ret = __adis_initial_startup(&st->adis);
 	if (ret)
-		goto error_cleanup_buffer;
+		return ret;
 
-	ret = iio_device_register(indio_dev);
+	ret = devm_iio_device_register(&spi->dev, indio_dev);
 	if (ret)
-		goto error_cleanup_buffer;
+		return ret;
 
 	adis16460_debugfs_init(indio_dev);
 
 	return 0;
-
-error_cleanup_buffer:
-	adis_cleanup_buffer_and_trigger(&st->adis, indio_dev);
-	return ret;
-}
-
-static int adis16460_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct adis16460 *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-
-	adis_cleanup_buffer_and_trigger(&st->adis, indio_dev);
-
-	return 0;
 }
 
 static const struct spi_device_id adis16460_ids[] = {
@@ -457,7 +441,6 @@ static struct spi_driver adis16460_driver = {
 	},
 	.id_table = adis16460_ids,
 	.probe = adis16460_probe,
-	.remove = adis16460_remove,
 };
 module_spi_driver(adis16460_driver);
 
diff --git a/drivers/iio/imu/adis16475.c b/drivers/iio/imu/adis16475.c
index 35d10ccb66c2..197d48240991 100644
--- a/drivers/iio/imu/adis16475.c
+++ b/drivers/iio/imu/adis16475.c
@@ -565,6 +565,9 @@ static int adis16475_enable_irq(struct adis *adis, bool enable)
 		BIT(ADIS16475_DIAG_STAT_CLK),				\
 	.enable_irq = adis16475_enable_irq,				\
 	.timeouts = (_timeouts),					\
+	.burst_reg_cmd = ADIS16475_REG_GLOB_CMD,			\
+	.burst_len = ADIS16475_BURST_MAX_DATA,				\
+	.burst_max_len = ADIS16475_BURST32_MAX_DATA			\
 }
 
 static const struct adis16475_sync adis16475_sync_mode[] = {
@@ -910,20 +913,6 @@ static const struct iio_info adis16475_info = {
 	.debugfs_reg_access = adis_debugfs_reg_access,
 };
 
-static struct adis_burst adis16475_burst = {
-	.en = true,
-	.reg_cmd = ADIS16475_REG_GLOB_CMD,
-	/*
-	 * adis_update_scan_mode_burst() sets the burst length in respect with
-	 * the number of channels and allocates 16 bits for each. However,
-	 * adis1647x devices also need space for DIAG_STAT, DATA_CNTR or
-	 * TIME_STAMP (depending on the clock mode but for us these bytes are
-	 * don't care...) and CRC.
-	 */
-	.extra_len = 3 * sizeof(u16),
-	.burst_max_len = ADIS16475_BURST32_MAX_DATA,
-};
-
 static bool adis16475_validate_crc(const u8 *buffer, u16 crc,
 				   const bool burst32)
 {
@@ -1279,7 +1268,6 @@ static int adis16475_probe(struct spi_device *spi)
 
 	st = iio_priv(indio_dev);
 	spi_set_drvdata(spi, indio_dev);
-	st->adis.burst = &adis16475_burst;
 
 	st->info = device_get_match_data(&spi->dev);
 	if (!st->info)
diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c
index 1eb4f98076f1..dfe86c589325 100644
--- a/drivers/iio/imu/adis16480.c
+++ b/drivers/iio/imu/adis16480.c
@@ -1212,6 +1212,16 @@ static int adis16480_get_ext_clocks(struct adis16480 *st)
 	return 0;
 }
 
+static void adis16480_stop(void *data)
+{
+	adis16480_stop_device(data);
+}
+
+static void adis16480_clk_disable(void *data)
+{
+	clk_disable_unprepare(data);
+}
+
 static int adis16480_probe(struct spi_device *spi)
 {
 	const struct spi_device_id *id = spi_get_device_id(spi);
@@ -1245,18 +1255,26 @@ static int adis16480_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
+	ret = devm_add_action_or_reset(&spi->dev, adis16480_stop, indio_dev);
+	if (ret)
+		return ret;
+
 	ret = adis16480_config_irq_pin(spi->dev.of_node, st);
 	if (ret)
-		goto error_stop_device;
+		return ret;
 
 	ret = adis16480_get_ext_clocks(st);
 	if (ret)
-		goto error_stop_device;
+		return ret;
 
 	if (!IS_ERR_OR_NULL(st->ext_clk)) {
 		ret = adis16480_ext_clk_config(st, spi->dev.of_node, true);
 		if (ret)
-			goto error_stop_device;
+			return ret;
+
+		ret = devm_add_action_or_reset(&spi->dev, adis16480_clk_disable, st->ext_clk);
+		if (ret)
+			return ret;
 
 		st->clk_freq = clk_get_rate(st->ext_clk);
 		st->clk_freq *= 1000; /* micro */
@@ -1264,39 +1282,17 @@ static int adis16480_probe(struct spi_device *spi)
 		st->clk_freq = st->chip_info->int_clk;
 	}
 
-	ret = adis_setup_buffer_and_trigger(&st->adis, indio_dev, NULL);
+	ret = devm_adis_setup_buffer_and_trigger(&st->adis, indio_dev, NULL);
 	if (ret)
-		goto error_clk_disable_unprepare;
+		return ret;
 
-	ret = iio_device_register(indio_dev);
+	ret = devm_iio_device_register(&spi->dev, indio_dev);
 	if (ret)
-		goto error_cleanup_buffer;
+		return ret;
 
 	adis16480_debugfs_init(indio_dev);
 
 	return 0;
-
-error_cleanup_buffer:
-	adis_cleanup_buffer_and_trigger(&st->adis, indio_dev);
-error_clk_disable_unprepare:
-	clk_disable_unprepare(st->ext_clk);
-error_stop_device:
-	adis16480_stop_device(indio_dev);
-	return ret;
-}
-
-static int adis16480_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct adis16480 *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	adis16480_stop_device(indio_dev);
-
-	adis_cleanup_buffer_and_trigger(&st->adis, indio_dev);
-	clk_disable_unprepare(st->ext_clk);
-
-	return 0;
 }
 
 static const struct spi_device_id adis16480_ids[] = {
@@ -1338,7 +1334,6 @@ static struct spi_driver adis16480_driver = {
 	},
 	.id_table = adis16480_ids,
 	.probe = adis16480_probe,
-	.remove = adis16480_remove,
 };
 module_spi_driver(adis16480_driver);
 
diff --git a/drivers/iio/imu/adis_buffer.c b/drivers/iio/imu/adis_buffer.c
index 5b4225ee09b9..ac354321f63a 100644
--- a/drivers/iio/imu/adis_buffer.c
+++ b/drivers/iio/imu/adis_buffer.c
@@ -26,12 +26,10 @@ static int adis_update_scan_mode_burst(struct iio_dev *indio_dev,
 	unsigned int burst_length, burst_max_length;
 	u8 *tx;
 
-	/* All but the timestamp channel */
-	burst_length = (indio_dev->num_channels - 1) * sizeof(u16);
-	burst_length += adis->burst->extra_len + adis->burst_extra_len;
+	burst_length = adis->data->burst_len + adis->burst_extra_len;
 
-	if (adis->burst->burst_max_len)
-		burst_max_length = adis->burst->burst_max_len;
+	if (adis->data->burst_max_len)
+		burst_max_length = adis->data->burst_max_len;
 	else
 		burst_max_length = burst_length;
 
@@ -47,7 +45,7 @@ static int adis_update_scan_mode_burst(struct iio_dev *indio_dev,
 	}
 
 	tx = adis->buffer + burst_max_length;
-	tx[0] = ADIS_READ_REG(adis->burst->reg_cmd);
+	tx[0] = ADIS_READ_REG(adis->data->burst_reg_cmd);
 	tx[1] = 0;
 
 	adis->xfer[0].tx_buf = tx;
@@ -76,7 +74,7 @@ int adis_update_scan_mode(struct iio_dev *indio_dev,
 	kfree(adis->xfer);
 	kfree(adis->buffer);
 
-	if (adis->burst && adis->burst->en)
+	if (adis->data->burst_len)
 		return adis_update_scan_mode_burst(indio_dev, scan_mask);
 
 	scan_count = indio_dev->scan_bytes / 2;
@@ -170,48 +168,6 @@ static void adis_buffer_cleanup(void *arg)
 }
 
 /**
- * adis_setup_buffer_and_trigger() - Sets up buffer and trigger for the adis device
- * @adis: The adis device.
- * @indio_dev: The IIO device.
- * @trigger_handler: Optional trigger handler, may be NULL.
- *
- * Returns 0 on success, a negative error code otherwise.
- *
- * This function sets up the buffer and trigger for a adis devices.  If
- * 'trigger_handler' is NULL the default trigger handler will be used. The
- * default trigger handler will simply read the registers assigned to the
- * currently active channels.
- *
- * adis_cleanup_buffer_and_trigger() should be called to free the resources
- * allocated by this function.
- */
-int adis_setup_buffer_and_trigger(struct adis *adis, struct iio_dev *indio_dev,
-	irqreturn_t (*trigger_handler)(int, void *))
-{
-	int ret;
-
-	if (!trigger_handler)
-		trigger_handler = adis_trigger_handler;
-
-	ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
-		trigger_handler, NULL);
-	if (ret)
-		return ret;
-
-	if (adis->spi->irq) {
-		ret = adis_probe_trigger(adis, indio_dev);
-		if (ret)
-			goto error_buffer_cleanup;
-	}
-	return 0;
-
-error_buffer_cleanup:
-	iio_triggered_buffer_cleanup(indio_dev);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(adis_setup_buffer_and_trigger);
-
-/**
  * devm_adis_setup_buffer_and_trigger() - Sets up buffer and trigger for
  *					  the managed adis device
  * @adis: The adis device
@@ -220,7 +176,10 @@ EXPORT_SYMBOL_GPL(adis_setup_buffer_and_trigger);
  *
  * Returns 0 on success, a negative error code otherwise.
  *
- * This function perfoms exactly the same as adis_setup_buffer_and_trigger()
+ * This function sets up the buffer and trigger for a adis devices.  If
+ * 'trigger_handler' is NULL the default trigger handler will be used. The
+ * default trigger handler will simply read the registers assigned to the
+ * currently active channels.
  */
 int
 devm_adis_setup_buffer_and_trigger(struct adis *adis, struct iio_dev *indio_dev,
@@ -248,20 +207,3 @@ devm_adis_setup_buffer_and_trigger(struct adis *adis, struct iio_dev *indio_dev,
 }
 EXPORT_SYMBOL_GPL(devm_adis_setup_buffer_and_trigger);
 
-/**
- * adis_cleanup_buffer_and_trigger() - Free buffer and trigger resources
- * @adis: The adis device.
- * @indio_dev: The IIO device.
- *
- * Frees resources allocated by adis_setup_buffer_and_trigger()
- */
-void adis_cleanup_buffer_and_trigger(struct adis *adis,
-	struct iio_dev *indio_dev)
-{
-	if (adis->spi->irq)
-		adis_remove_trigger(adis);
-	kfree(adis->buffer);
-	kfree(adis->xfer);
-	iio_triggered_buffer_cleanup(indio_dev);
-}
-EXPORT_SYMBOL_GPL(adis_cleanup_buffer_and_trigger);
diff --git a/drivers/iio/imu/adis_trigger.c b/drivers/iio/imu/adis_trigger.c
index 8afe71947c00..64e0ba51cb18 100644
--- a/drivers/iio/imu/adis_trigger.c
+++ b/drivers/iio/imu/adis_trigger.c
@@ -55,53 +55,6 @@ static int adis_validate_irq_flag(struct adis *adis)
 
 	return 0;
 }
-/**
- * adis_probe_trigger() - Sets up trigger for a adis device
- * @adis: The adis device
- * @indio_dev: The IIO device
- *
- * Returns 0 on success or a negative error code
- *
- * adis_remove_trigger() should be used to free the trigger.
- */
-int adis_probe_trigger(struct adis *adis, struct iio_dev *indio_dev)
-{
-	int ret;
-
-	adis->trig = iio_trigger_alloc("%s-dev%d", indio_dev->name,
-					indio_dev->id);
-	if (adis->trig == NULL)
-		return -ENOMEM;
-
-	adis_trigger_setup(adis);
-
-	ret = adis_validate_irq_flag(adis);
-	if (ret)
-		return ret;
-
-	ret = request_irq(adis->spi->irq,
-			  &iio_trigger_generic_data_rdy_poll,
-			  adis->irq_flag,
-			  indio_dev->name,
-			  adis->trig);
-	if (ret)
-		goto error_free_trig;
-
-	ret = iio_trigger_register(adis->trig);
-
-	indio_dev->trig = iio_trigger_get(adis->trig);
-	if (ret)
-		goto error_free_irq;
-
-	return 0;
-
-error_free_irq:
-	free_irq(adis->spi->irq, adis->trig);
-error_free_trig:
-	iio_trigger_free(adis->trig);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(adis_probe_trigger);
 
 /**
  * devm_adis_probe_trigger() - Sets up trigger for a managed adis device
@@ -137,16 +90,3 @@ int devm_adis_probe_trigger(struct adis *adis, struct iio_dev *indio_dev)
 }
 EXPORT_SYMBOL_GPL(devm_adis_probe_trigger);
 
-/**
- * adis_remove_trigger() - Remove trigger for a adis devices
- * @adis: The adis device
- *
- * Removes the trigger previously registered with adis_probe_trigger().
- */
-void adis_remove_trigger(struct adis *adis)
-{
-	iio_trigger_unregister(adis->trig);
-	free_irq(adis->spi->irq, adis->trig);
-	iio_trigger_free(adis->trig);
-}
-EXPORT_SYMBOL_GPL(adis_remove_trigger);
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index 3fee3947f772..18a1898e3e34 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -1475,22 +1475,14 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,
 	}
 
 	st->vdd_supply = devm_regulator_get(dev, "vdd");
-	if (IS_ERR(st->vdd_supply)) {
-		if (PTR_ERR(st->vdd_supply) != -EPROBE_DEFER)
-			dev_err(dev, "Failed to get vdd regulator %d\n",
-				(int)PTR_ERR(st->vdd_supply));
-
-		return PTR_ERR(st->vdd_supply);
-	}
+	if (IS_ERR(st->vdd_supply))
+		return dev_err_probe(dev, PTR_ERR(st->vdd_supply),
+				     "Failed to get vdd regulator\n");
 
 	st->vddio_supply = devm_regulator_get(dev, "vddio");
-	if (IS_ERR(st->vddio_supply)) {
-		if (PTR_ERR(st->vddio_supply) != -EPROBE_DEFER)
-			dev_err(dev, "Failed to get vddio regulator %d\n",
-				(int)PTR_ERR(st->vddio_supply));
-
-		return PTR_ERR(st->vddio_supply);
-	}
+	if (IS_ERR(st->vddio_supply))
+		return dev_err_probe(dev, PTR_ERR(st->vddio_supply),
+				     "Failed to get vddio regulator\n");
 
 	result = regulator_enable(st->vdd_supply);
 	if (result) {
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
index cd38b3fccc7b..eb522b38acf3 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
@@ -122,6 +122,13 @@ struct inv_mpu6050_chip_config {
 	u8 user_ctrl;
 };
 
+/*
+ * Maximum of 6 + 6 + 2 + 7 (for MPU9x50) = 21 round up to 24 and plus 8.
+ * May be less if fewer channels are enabled, as long as the timestamp
+ * remains 8 byte aligned
+ */
+#define INV_MPU6050_OUTPUT_DATA_SIZE         32
+
 /**
  *  struct inv_mpu6050_hw - Other important hardware information.
  *  @whoami:	Self identification byte from WHO_AM_I register
@@ -165,6 +172,7 @@ struct inv_mpu6050_hw {
  *  @magn_raw_to_gauss:	coefficient to convert mag raw value to Gauss.
  *  @magn_orient:       magnetometer sensor chip orientation if available.
  *  @suspended_sensors:	sensors mask of sensors turned off for suspend
+ *  @data:		dma safe buffer used for bulk reads.
  */
 struct inv_mpu6050_state {
 	struct mutex lock;
@@ -190,6 +198,7 @@ struct inv_mpu6050_state {
 	s32 magn_raw_to_gauss[3];
 	struct iio_mount_matrix magn_orient;
 	unsigned int suspended_sensors;
+	u8 data[INV_MPU6050_OUTPUT_DATA_SIZE] ____cacheline_aligned;
 };
 
 /*register and associated bit definition*/
@@ -334,9 +343,6 @@ struct inv_mpu6050_state {
 #define INV_ICM20608_TEMP_OFFSET	     8170
 #define INV_ICM20608_TEMP_SCALE		     3059976
 
-/* 6 + 6 + 2 + 7 (for MPU9x50) = 21 round up to 24 and plus 8 */
-#define INV_MPU6050_OUTPUT_DATA_SIZE         32
-
 #define INV_MPU6050_REG_INT_PIN_CFG	0x37
 #define INV_MPU6050_ACTIVE_HIGH		0x00
 #define INV_MPU6050_ACTIVE_LOW		0x80
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
index b533fa2dad0a..45c37525c2f1 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
@@ -13,7 +13,6 @@
 #include <linux/interrupt.h>
 #include <linux/poll.h>
 #include <linux/math64.h>
-#include <asm/unaligned.h>
 #include "inv_mpu_iio.h"
 
 /**
@@ -121,7 +120,6 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
 	struct inv_mpu6050_state *st = iio_priv(indio_dev);
 	size_t bytes_per_datum;
 	int result;
-	u8 data[INV_MPU6050_OUTPUT_DATA_SIZE];
 	u16 fifo_count;
 	s64 timestamp;
 	int int_status;
@@ -160,11 +158,11 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
 	 * read fifo_count register to know how many bytes are inside the FIFO
 	 * right now
 	 */
-	result = regmap_bulk_read(st->map, st->reg->fifo_count_h, data,
-				  INV_MPU6050_FIFO_COUNT_BYTE);
+	result = regmap_bulk_read(st->map, st->reg->fifo_count_h,
+				  st->data, INV_MPU6050_FIFO_COUNT_BYTE);
 	if (result)
 		goto end_session;
-	fifo_count = get_unaligned_be16(&data[0]);
+	fifo_count = be16_to_cpup((__be16 *)&st->data[0]);
 
 	/*
 	 * Handle fifo overflow by resetting fifo.
@@ -181,8 +179,8 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
 	nb = fifo_count / bytes_per_datum;
 	inv_mpu6050_update_period(st, pf->timestamp, nb);
 	for (i = 0; i < nb; ++i) {
-		result = regmap_bulk_read(st->map, st->reg->fifo_r_w,
-					  data, bytes_per_datum);
+		result = regmap_noinc_read(st->map, st->reg->fifo_r_w,
+					   st->data, bytes_per_datum);
 		if (result)
 			goto flush_fifo;
 		/* skip first samples if needed */
@@ -191,7 +189,7 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
 			continue;
 		}
 		timestamp = inv_mpu6050_get_timestamp(st);
-		iio_push_to_buffers_with_timestamp(indio_dev, data, timestamp);
+		iio_push_to_buffers_with_timestamp(indio_dev, st->data, timestamp);
 	}
 
 end_session:
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
index d80ba2e688ed..9275346a9cc1 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
@@ -383,6 +383,7 @@ struct st_lsm6dsx_sensor {
  * @iio_devs: Pointers to acc/gyro iio_dev instances.
  * @settings: Pointer to the specific sensor settings in use.
  * @orientation: sensor chip orientation relative to main hardware.
+ * @scan: Temporary buffers used to align data before iio_push_to_buffers()
  */
 struct st_lsm6dsx_hw {
 	struct device *dev;
@@ -411,6 +412,11 @@ struct st_lsm6dsx_hw {
 	const struct st_lsm6dsx_settings *settings;
 
 	struct iio_mount_matrix orientation;
+	/* Ensure natural alignment of buffer elements */
+	struct {
+		__le16 channels[3];
+		s64 ts __aligned(8);
+	} scan[3];
 };
 
 static __maybe_unused const struct iio_event_spec st_lsm6dsx_event = {
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
index 7de10bd636ea..12ed0a2e55e4 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
@@ -353,9 +353,6 @@ int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw)
 	int err, sip, acc_sip, gyro_sip, ts_sip, ext_sip, read_len, offset;
 	u16 fifo_len, pattern_len = hw->sip * ST_LSM6DSX_SAMPLE_SIZE;
 	u16 fifo_diff_mask = hw->settings->fifo_ops.fifo_diff.mask;
-	u8 gyro_buff[ST_LSM6DSX_IIO_BUFF_SIZE];
-	u8 acc_buff[ST_LSM6DSX_IIO_BUFF_SIZE];
-	u8 ext_buff[ST_LSM6DSX_IIO_BUFF_SIZE];
 	bool reset_ts = false;
 	__le16 fifo_status;
 	s64 ts = 0;
@@ -416,19 +413,22 @@ int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw)
 
 		while (acc_sip > 0 || gyro_sip > 0 || ext_sip > 0) {
 			if (gyro_sip > 0 && !(sip % gyro_sensor->decimator)) {
-				memcpy(gyro_buff, &hw->buff[offset],
-				       ST_LSM6DSX_SAMPLE_SIZE);
-				offset += ST_LSM6DSX_SAMPLE_SIZE;
+				memcpy(hw->scan[ST_LSM6DSX_ID_GYRO].channels,
+				       &hw->buff[offset],
+				       sizeof(hw->scan[ST_LSM6DSX_ID_GYRO].channels));
+				offset += sizeof(hw->scan[ST_LSM6DSX_ID_GYRO].channels);
 			}
 			if (acc_sip > 0 && !(sip % acc_sensor->decimator)) {
-				memcpy(acc_buff, &hw->buff[offset],
-				       ST_LSM6DSX_SAMPLE_SIZE);
-				offset += ST_LSM6DSX_SAMPLE_SIZE;
+				memcpy(hw->scan[ST_LSM6DSX_ID_ACC].channels,
+				       &hw->buff[offset],
+				       sizeof(hw->scan[ST_LSM6DSX_ID_ACC].channels));
+				offset += sizeof(hw->scan[ST_LSM6DSX_ID_ACC].channels);
 			}
 			if (ext_sip > 0 && !(sip % ext_sensor->decimator)) {
-				memcpy(ext_buff, &hw->buff[offset],
-				       ST_LSM6DSX_SAMPLE_SIZE);
-				offset += ST_LSM6DSX_SAMPLE_SIZE;
+				memcpy(hw->scan[ST_LSM6DSX_ID_EXT0].channels,
+				       &hw->buff[offset],
+				       sizeof(hw->scan[ST_LSM6DSX_ID_EXT0].channels));
+				offset += sizeof(hw->scan[ST_LSM6DSX_ID_EXT0].channels);
 			}
 
 			if (ts_sip-- > 0) {
@@ -458,19 +458,22 @@ int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw)
 			if (gyro_sip > 0 && !(sip % gyro_sensor->decimator)) {
 				iio_push_to_buffers_with_timestamp(
 					hw->iio_devs[ST_LSM6DSX_ID_GYRO],
-					gyro_buff, gyro_sensor->ts_ref + ts);
+					&hw->scan[ST_LSM6DSX_ID_GYRO],
+					gyro_sensor->ts_ref + ts);
 				gyro_sip--;
 			}
 			if (acc_sip > 0 && !(sip % acc_sensor->decimator)) {
 				iio_push_to_buffers_with_timestamp(
 					hw->iio_devs[ST_LSM6DSX_ID_ACC],
-					acc_buff, acc_sensor->ts_ref + ts);
+					&hw->scan[ST_LSM6DSX_ID_ACC],
+					acc_sensor->ts_ref + ts);
 				acc_sip--;
 			}
 			if (ext_sip > 0 && !(sip % ext_sensor->decimator)) {
 				iio_push_to_buffers_with_timestamp(
 					hw->iio_devs[ST_LSM6DSX_ID_EXT0],
-					ext_buff, ext_sensor->ts_ref + ts);
+					&hw->scan[ST_LSM6DSX_ID_EXT0],
+					ext_sensor->ts_ref + ts);
 				ext_sip--;
 			}
 			sip++;
@@ -555,7 +558,14 @@ int st_lsm6dsx_read_tagged_fifo(struct st_lsm6dsx_hw *hw)
 {
 	u16 pattern_len = hw->sip * ST_LSM6DSX_TAGGED_SAMPLE_SIZE;
 	u16 fifo_len, fifo_diff_mask;
-	u8 iio_buff[ST_LSM6DSX_IIO_BUFF_SIZE], tag;
+	/*
+	 * Alignment needed as this can ultimately be passed to a
+	 * call to iio_push_to_buffers_with_timestamp() which
+	 * must be passed a buffer that is aligned to 8 bytes so
+	 * as to allow insertion of a naturally aligned timestamp.
+	 */
+	u8 iio_buff[ST_LSM6DSX_IIO_BUFF_SIZE] __aligned(8);
+	u8 tag;
 	bool reset_ts = false;
 	int i, err, read_len;
 	__le16 fifo_status;
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index 346c24281d26..42f485634d04 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -157,10 +157,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 					.addr = 0x20,
 					.mask = GENMASK(4, 3),
 				},
-				.fs_avl[0] = {  IIO_G_TO_M_S_2(61), 0x0 },
-				.fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 },
-				.fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 },
-				.fs_avl[3] = { IIO_G_TO_M_S_2(732), 0x1 },
+				.fs_avl[0] = {  IIO_G_TO_M_S_2(61000), 0x0 },
+				.fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 },
+				.fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 },
+				.fs_avl[3] = { IIO_G_TO_M_S_2(732000), 0x1 },
 				.fs_len = 4,
 			},
 			[ST_LSM6DSX_ID_GYRO] = {
@@ -169,9 +169,9 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 					.mask = GENMASK(4, 3),
 				},
 
-				.fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750), 0x0 },
-				.fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 },
-				.fs_avl[2] = { IIO_DEGREE_TO_RAD(70000), 0x3 },
+				.fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750000), 0x0 },
+				.fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 },
+				.fs_avl[2] = { IIO_DEGREE_TO_RAD(70000000), 0x3 },
 				.fs_len = 3,
 			},
 		},
@@ -259,10 +259,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 					.addr = 0x10,
 					.mask = GENMASK(3, 2),
 				},
-				.fs_avl[0] = {  IIO_G_TO_M_S_2(61), 0x0 },
-				.fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 },
-				.fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 },
-				.fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 },
+				.fs_avl[0] = {  IIO_G_TO_M_S_2(61000), 0x0 },
+				.fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 },
+				.fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 },
+				.fs_avl[3] = { IIO_G_TO_M_S_2(488000), 0x1 },
 				.fs_len = 4,
 			},
 			[ST_LSM6DSX_ID_GYRO] = {
@@ -270,10 +270,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 					.addr = 0x11,
 					.mask = GENMASK(3, 2),
 				},
-				.fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750), 0x0 },
-				.fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 },
-				.fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 },
-				.fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 },
+				.fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750000), 0x0 },
+				.fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 },
+				.fs_avl[2] = { IIO_DEGREE_TO_RAD(35000000), 0x2 },
+				.fs_avl[3] = { IIO_DEGREE_TO_RAD(70000000), 0x3 },
 				.fs_len = 4,
 			},
 		},
@@ -425,10 +425,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 					.addr = 0x10,
 					.mask = GENMASK(3, 2),
 				},
-				.fs_avl[0] = {  IIO_G_TO_M_S_2(61), 0x0 },
-				.fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 },
-				.fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 },
-				.fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 },
+				.fs_avl[0] = {  IIO_G_TO_M_S_2(61000), 0x0 },
+				.fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 },
+				.fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 },
+				.fs_avl[3] = { IIO_G_TO_M_S_2(488000), 0x1 },
 				.fs_len = 4,
 			},
 			[ST_LSM6DSX_ID_GYRO] = {
@@ -436,10 +436,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 					.addr = 0x11,
 					.mask = GENMASK(3, 2),
 				},
-				.fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750), 0x0 },
-				.fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 },
-				.fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 },
-				.fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 },
+				.fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750000), 0x0 },
+				.fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 },
+				.fs_avl[2] = { IIO_DEGREE_TO_RAD(35000000), 0x2 },
+				.fs_avl[3] = { IIO_DEGREE_TO_RAD(70000000), 0x3 },
 				.fs_len = 4,
 			},
 		},
@@ -600,10 +600,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 					.addr = 0x10,
 					.mask = GENMASK(3, 2),
 				},
-				.fs_avl[0] = {  IIO_G_TO_M_S_2(61), 0x0 },
-				.fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 },
-				.fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 },
-				.fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 },
+				.fs_avl[0] = {  IIO_G_TO_M_S_2(61000), 0x0 },
+				.fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 },
+				.fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 },
+				.fs_avl[3] = { IIO_G_TO_M_S_2(488000), 0x1 },
 				.fs_len = 4,
 			},
 			[ST_LSM6DSX_ID_GYRO] = {
@@ -611,10 +611,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 					.addr = 0x11,
 					.mask = GENMASK(3, 2),
 				},
-				.fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750), 0x0 },
-				.fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 },
-				.fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 },
-				.fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 },
+				.fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750000), 0x0 },
+				.fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 },
+				.fs_avl[2] = { IIO_DEGREE_TO_RAD(35000000), 0x2 },
+				.fs_avl[3] = { IIO_DEGREE_TO_RAD(70000000), 0x3 },
 				.fs_len = 4,
 			},
 		},
@@ -816,10 +816,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 					.addr = 0x10,
 					.mask = GENMASK(3, 2),
 				},
-				.fs_avl[0] = {  IIO_G_TO_M_S_2(61), 0x0 },
-				.fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 },
-				.fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 },
-				.fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 },
+				.fs_avl[0] = {  IIO_G_TO_M_S_2(61000), 0x0 },
+				.fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 },
+				.fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 },
+				.fs_avl[3] = { IIO_G_TO_M_S_2(488000), 0x1 },
 				.fs_len = 4,
 			},
 			[ST_LSM6DSX_ID_GYRO] = {
@@ -827,10 +827,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 					.addr = 0x11,
 					.mask = GENMASK(3, 2),
 				},
-				.fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750), 0x0 },
-				.fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 },
-				.fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 },
-				.fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 },
+				.fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750000), 0x0 },
+				.fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 },
+				.fs_avl[2] = { IIO_DEGREE_TO_RAD(35000000), 0x2 },
+				.fs_avl[3] = { IIO_DEGREE_TO_RAD(70000000), 0x3 },
 				.fs_len = 4,
 			},
 		},
@@ -1021,10 +1021,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 					.addr = 0x10,
 					.mask = GENMASK(3, 2),
 				},
-				.fs_avl[0] = {  IIO_G_TO_M_S_2(61), 0x0 },
-				.fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 },
-				.fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 },
-				.fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 },
+				.fs_avl[0] = {  IIO_G_TO_M_S_2(61000), 0x0 },
+				.fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 },
+				.fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 },
+				.fs_avl[3] = { IIO_G_TO_M_S_2(488000), 0x1 },
 				.fs_len = 4,
 			},
 			[ST_LSM6DSX_ID_GYRO] = {
@@ -1032,10 +1032,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 					.addr = 0x11,
 					.mask = GENMASK(3, 2),
 				},
-				.fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750), 0x0 },
-				.fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 },
-				.fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 },
-				.fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 },
+				.fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750000), 0x0 },
+				.fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 },
+				.fs_avl[2] = { IIO_DEGREE_TO_RAD(35000000), 0x2 },
+				.fs_avl[3] = { IIO_DEGREE_TO_RAD(70000000), 0x3 },
 				.fs_len = 4,
 			},
 		},
@@ -1200,10 +1200,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 					.addr = 0x10,
 					.mask = GENMASK(3, 2),
 				},
-				.fs_avl[0] = {  IIO_G_TO_M_S_2(61), 0x0 },
-				.fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 },
-				.fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 },
-				.fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 },
+				.fs_avl[0] = {  IIO_G_TO_M_S_2(61000), 0x0 },
+				.fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 },
+				.fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 },
+				.fs_avl[3] = { IIO_G_TO_M_S_2(488000), 0x1 },
 				.fs_len = 4,
 			},
 			[ST_LSM6DSX_ID_GYRO] = {
@@ -1211,10 +1211,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 					.addr = 0x11,
 					.mask = GENMASK(3, 2),
 				},
-				.fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750), 0x0 },
-				.fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 },
-				.fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 },
-				.fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 },
+				.fs_avl[0] = {  IIO_DEGREE_TO_RAD(8750000), 0x0 },
+				.fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 },
+				.fs_avl[2] = { IIO_DEGREE_TO_RAD(35000000), 0x2 },
+				.fs_avl[3] = { IIO_DEGREE_TO_RAD(70000000), 0x3 },
 				.fs_len = 4,
 			},
 		},
@@ -1598,7 +1598,7 @@ static int st_lsm6dsx_read_raw(struct iio_dev *iio_dev,
 	case IIO_CHAN_INFO_SCALE:
 		*val = 0;
 		*val2 = sensor->gain;
-		ret = IIO_VAL_INT_PLUS_MICRO;
+		ret = IIO_VAL_INT_PLUS_NANO;
 		break;
 	default:
 		ret = -EINVAL;
@@ -1836,13 +1836,31 @@ static ssize_t st_lsm6dsx_sysfs_scale_avail(struct device *dev,
 
 	fs_table = &hw->settings->fs_table[sensor->id];
 	for (i = 0; i < fs_table->fs_len; i++)
-		len += scnprintf(buf + len, PAGE_SIZE - len, "0.%06u ",
+		len += scnprintf(buf + len, PAGE_SIZE - len, "0.%09u ",
 				 fs_table->fs_avl[i].gain);
 	buf[len - 1] = '\n';
 
 	return len;
 }
 
+static int st_lsm6dsx_write_raw_get_fmt(struct iio_dev *indio_dev,
+					struct iio_chan_spec const *chan,
+					long mask)
+{
+	switch (mask) {
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->type) {
+		case IIO_ANGL_VEL:
+		case IIO_ACCEL:
+			return IIO_VAL_INT_PLUS_NANO;
+		default:
+			return IIO_VAL_INT_PLUS_MICRO;
+		}
+	default:
+		return IIO_VAL_INT_PLUS_MICRO;
+	}
+}
+
 static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(st_lsm6dsx_sysfs_sampling_frequency_avail);
 static IIO_DEVICE_ATTR(in_accel_scale_available, 0444,
 		       st_lsm6dsx_sysfs_scale_avail, NULL, 0);
@@ -1868,6 +1886,7 @@ static const struct iio_info st_lsm6dsx_acc_info = {
 	.read_event_config = st_lsm6dsx_read_event_config,
 	.write_event_config = st_lsm6dsx_write_event_config,
 	.hwfifo_set_watermark = st_lsm6dsx_set_watermark,
+	.write_raw_get_fmt = st_lsm6dsx_write_raw_get_fmt,
 };
 
 static struct attribute *st_lsm6dsx_gyro_attributes[] = {
@@ -1885,6 +1904,7 @@ static const struct iio_info st_lsm6dsx_gyro_info = {
 	.read_raw = st_lsm6dsx_read_raw,
 	.write_raw = st_lsm6dsx_write_raw,
 	.hwfifo_set_watermark = st_lsm6dsx_set_watermark,
+	.write_raw_get_fmt = st_lsm6dsx_write_raw_get_fmt,
 };
 
 static int st_lsm6dsx_get_drdy_pin(struct st_lsm6dsx_hw *hw, int *drdy_pin)
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
index ed83471dc7dd..8c8d8870ca07 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
@@ -313,6 +313,8 @@ st_lsm6dsx_shub_read(struct st_lsm6dsx_sensor *sensor, u8 addr,
 
 	err = st_lsm6dsx_shub_read_output(hw, data,
 					  len & ST_LS6DSX_READ_OP_MASK);
+	if (err < 0)
+		return err;
 
 	st_lsm6dsx_shub_master_enable(sensor, false);
 
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index a7d7e5143ed2..a4f6bb96d4f4 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -1264,26 +1264,14 @@ static struct attribute *iio_buffer_attrs[] = {
 	&dev_attr_data_available.attr,
 };
 
-int iio_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev)
+static int __iio_buffer_alloc_sysfs_and_mask(struct iio_buffer *buffer,
+					     struct iio_dev *indio_dev)
 {
 	struct iio_dev_attr *p;
 	struct attribute **attr;
-	struct iio_buffer *buffer = indio_dev->buffer;
 	int ret, i, attrn, attrcount;
 	const struct iio_chan_spec *channels;
 
-	channels = indio_dev->channels;
-	if (channels) {
-		int ml = indio_dev->masklength;
-
-		for (i = 0; i < indio_dev->num_channels; i++)
-			ml = max(ml, channels[i].scan_index + 1);
-		indio_dev->masklength = ml;
-	}
-
-	if (!buffer)
-		return 0;
-
 	attrcount = 0;
 	if (buffer->attrs) {
 		while (buffer->attrs[attrcount] != NULL)
@@ -1367,19 +1355,45 @@ error_cleanup_dynamic:
 	return ret;
 }
 
-void iio_buffer_free_sysfs_and_mask(struct iio_dev *indio_dev)
+int iio_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev)
 {
 	struct iio_buffer *buffer = indio_dev->buffer;
+	const struct iio_chan_spec *channels;
+	int i;
+
+	channels = indio_dev->channels;
+	if (channels) {
+		int ml = indio_dev->masklength;
+
+		for (i = 0; i < indio_dev->num_channels; i++)
+			ml = max(ml, channels[i].scan_index + 1);
+		indio_dev->masklength = ml;
+	}
 
 	if (!buffer)
-		return;
+		return 0;
+
+	return __iio_buffer_alloc_sysfs_and_mask(buffer, indio_dev);
+}
 
+static void __iio_buffer_free_sysfs_and_mask(struct iio_buffer *buffer)
+{
 	bitmap_free(buffer->scan_mask);
 	kfree(buffer->buffer_group.attrs);
 	kfree(buffer->scan_el_group.attrs);
 	iio_free_chan_devattr_list(&buffer->scan_el_dev_attr_list);
 }
 
+void iio_buffer_free_sysfs_and_mask(struct iio_dev *indio_dev)
+{
+	struct iio_buffer *buffer = indio_dev->buffer;
+
+	if (!buffer)
+		return;
+
+	__iio_buffer_free_sysfs_and_mask(buffer);
+}
+
 /**
  * iio_validate_scan_mask_onehot() - Validates that exactly one channel is selected
  * @indio_dev: the iio device
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index cdcd16f19500..261d3b17edc9 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -133,6 +133,7 @@ static const char * const iio_modifier_names[] = {
 	[IIO_MOD_PM10] = "pm10",
 	[IIO_MOD_ETHANOL] = "ethanol",
 	[IIO_MOD_H2] = "h2",
+	[IIO_MOD_O2] = "o2",
 };
 
 /* relies on pairs of these shared then separate */
@@ -165,10 +166,11 @@ static const char * const iio_chan_info_postfix[] = {
 	[IIO_CHAN_INFO_CALIBEMISSIVITY] = "calibemissivity",
 	[IIO_CHAN_INFO_OVERSAMPLING_RATIO] = "oversampling_ratio",
 	[IIO_CHAN_INFO_THERMOCOUPLE_TYPE] = "thermocouple_type",
+	[IIO_CHAN_INFO_CALIBAMBIENT] = "calibambient",
 };
 
 #if defined(CONFIG_DEBUG_FS)
-/**
+/*
  * There's also a CONFIG_DEBUG_FS guard in include/linux/iio/iio.h for
  * iio_get_debugfs_dentry() to make it inline if CONFIG_DEBUG_FS is undefined
  */
@@ -1523,6 +1525,7 @@ struct device_type iio_device_type = {
 
 /**
  * iio_device_alloc() - allocate an iio_dev from a driver
+ * @parent:		Parent device.
  * @sizeof_priv:	Space to allocate for private structure.
  **/
 struct iio_dev *iio_device_alloc(struct device *parent, int sizeof_priv)
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 2ab4d4c44427..99ba657b8568 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -477,6 +477,7 @@ static const char *iio_event_group_name = "events";
 int iio_device_register_eventset(struct iio_dev *indio_dev)
 {
 	struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
+	struct iio_event_interface *ev_int;
 	struct iio_dev_attr *p;
 	int ret = 0, attrcount_orig = 0, attrcount, attrn;
 	struct attribute **attr;
@@ -485,14 +486,15 @@ int iio_device_register_eventset(struct iio_dev *indio_dev)
 	      iio_check_for_dynamic_events(indio_dev)))
 		return 0;
 
-	iio_dev_opaque->event_interface =
-		kzalloc(sizeof(struct iio_event_interface), GFP_KERNEL);
-	if (iio_dev_opaque->event_interface == NULL)
+	ev_int = kzalloc(sizeof(struct iio_event_interface), GFP_KERNEL);
+	if (ev_int == NULL)
 		return -ENOMEM;
 
-	INIT_LIST_HEAD(&iio_dev_opaque->event_interface->dev_attr_list);
+	iio_dev_opaque->event_interface = ev_int;
 
-	iio_setup_ev_int(iio_dev_opaque->event_interface);
+	INIT_LIST_HEAD(&ev_int->dev_attr_list);
+
+	iio_setup_ev_int(ev_int);
 	if (indio_dev->info->event_attrs != NULL) {
 		attr = indio_dev->info->event_attrs->attrs;
 		while (*attr++ != NULL)
@@ -506,34 +508,29 @@ int iio_device_register_eventset(struct iio_dev *indio_dev)
 		attrcount += ret;
 	}
 
-	iio_dev_opaque->event_interface->group.name = iio_event_group_name;
-	iio_dev_opaque->event_interface->group.attrs = kcalloc(attrcount + 1,
-							  sizeof(iio_dev_opaque->event_interface->group.attrs[0]),
-							  GFP_KERNEL);
-	if (iio_dev_opaque->event_interface->group.attrs == NULL) {
+	ev_int->group.name = iio_event_group_name;
+	ev_int->group.attrs = kcalloc(attrcount + 1,
+				      sizeof(ev_int->group.attrs[0]),
+				      GFP_KERNEL);
+	if (ev_int->group.attrs == NULL) {
 		ret = -ENOMEM;
 		goto error_free_setup_event_lines;
 	}
 	if (indio_dev->info->event_attrs)
-		memcpy(iio_dev_opaque->event_interface->group.attrs,
+		memcpy(ev_int->group.attrs,
 		       indio_dev->info->event_attrs->attrs,
-		       sizeof(iio_dev_opaque->event_interface->group.attrs[0])
-		       *attrcount_orig);
+		       sizeof(ev_int->group.attrs[0]) * attrcount_orig);
 	attrn = attrcount_orig;
 	/* Add all elements from the list. */
-	list_for_each_entry(p,
-			    &iio_dev_opaque->event_interface->dev_attr_list,
-			    l)
-		iio_dev_opaque->event_interface->group.attrs[attrn++] =
-			&p->dev_attr.attr;
-	indio_dev->groups[indio_dev->groupcounter++] =
-		&iio_dev_opaque->event_interface->group;
+	list_for_each_entry(p, &ev_int->dev_attr_list, l)
+		ev_int->group.attrs[attrn++] = &p->dev_attr.attr;
+	indio_dev->groups[indio_dev->groupcounter++] = &ev_int->group;
 
 	return 0;
 
 error_free_setup_event_lines:
-	iio_free_chan_devattr_list(&iio_dev_opaque->event_interface->dev_attr_list);
-	kfree(iio_dev_opaque->event_interface);
+	iio_free_chan_devattr_list(&ev_int->dev_attr_list);
+	kfree(ev_int);
 	iio_dev_opaque->event_interface = NULL;
 	return ret;
 }
@@ -557,10 +554,12 @@ void iio_device_wakeup_eventset(struct iio_dev *indio_dev)
 void iio_device_unregister_eventset(struct iio_dev *indio_dev)
 {
 	struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
+	struct iio_event_interface *ev_int = iio_dev_opaque->event_interface;
 
-	if (iio_dev_opaque->event_interface == NULL)
+	if (ev_int == NULL)
 		return;
-	iio_free_chan_devattr_list(&iio_dev_opaque->event_interface->dev_attr_list);
-	kfree(iio_dev_opaque->event_interface->group.attrs);
-	kfree(iio_dev_opaque->event_interface);
+	iio_free_chan_devattr_list(&ev_int->dev_attr_list);
+	kfree(ev_int->group.attrs);
+	kfree(ev_int);
+	iio_dev_opaque->event_interface = NULL;
 }
diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index 6f16357fd732..583bb51f65a7 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -516,7 +516,8 @@ static void iio_trig_subirqunmask(struct irq_data *d)
 	trig->subirqs[d->irq - trig->subirq_base].enabled = true;
 }
 
-static struct iio_trigger *viio_trigger_alloc(const char *fmt, va_list vargs)
+static __printf(1, 0)
+struct iio_trigger *viio_trigger_alloc(const char *fmt, va_list vargs)
 {
 	struct iio_trigger *trig;
 	int i;
diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
index 182bd18c4bb2..cade6dc0305b 100644
--- a/drivers/iio/light/Kconfig
+++ b/drivers/iio/light/Kconfig
@@ -86,6 +86,21 @@ config APDS9960
 	  To compile this driver as a module, choose M here: the
 	  module will be called apds9960
 
+config AS73211
+	tristate "AMS AS73211 XYZ color sensor"
+	depends on I2C
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	help
+	 If you say yes here you get support for the AMS AS73211
+	 JENCOLOR(R) Digital XYZ Sensor.
+
+	 For triggered measurements, you will need an additional trigger driver
+	 like IIO_HRTIMER_TRIGGER or IIO_SYSFS_TRIGGER.
+
+	 This driver can also be built as a module.  If so, the module
+	 will be called as73211.
+
 config BH1750
 	tristate "ROHM BH1750 ambient light sensor"
 	depends on I2C
diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile
index d1c8aa30b9a8..ea376deaca54 100644
--- a/drivers/iio/light/Makefile
+++ b/drivers/iio/light/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_AL3010)		+= al3010.o
 obj-$(CONFIG_AL3320A)		+= al3320a.o
 obj-$(CONFIG_APDS9300)		+= apds9300.o
 obj-$(CONFIG_APDS9960)		+= apds9960.o
+obj-$(CONFIG_AS73211)		+= as73211.o
 obj-$(CONFIG_BH1750)		+= bh1750.o
 obj-$(CONFIG_BH1780)		+= bh1780.o
 obj-$(CONFIG_CM32181)		+= cm32181.o
diff --git a/drivers/iio/light/as73211.c b/drivers/iio/light/as73211.c
new file mode 100644
index 000000000000..7b32dfaee9b3
--- /dev/null
+++ b/drivers/iio/light/as73211.c
@@ -0,0 +1,800 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Support for AMS AS73211 JENCOLOR(R) Digital XYZ Sensor
+ *
+ * Author: Christian Eggers <ceggers@arri.de>
+ *
+ * Copyright (c) 2020 ARRI Lighting
+ *
+ * Color light sensor with 16-bit channels for x, y, z and temperature);
+ * 7-bit I2C slave address 0x74 .. 0x77.
+ *
+ * Datasheet: https://ams.com/documents/20143/36005/AS73211_DS000556_3-01.pdf
+ */
+
+#include <linux/bitfield.h>
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/pm.h>
+
+#define HZ_PER_KHZ 1000
+
+#define AS73211_DRV_NAME "as73211"
+
+/* AS73211 configuration registers */
+#define AS73211_REG_OSR    0x0
+#define AS73211_REG_AGEN   0x2
+#define AS73211_REG_CREG1  0x6
+#define AS73211_REG_CREG2  0x7
+#define AS73211_REG_CREG3  0x8
+
+/* AS73211 output register bank */
+#define AS73211_OUT_OSR_STATUS    0
+#define AS73211_OUT_TEMP          1
+#define AS73211_OUT_MRES1         2
+#define AS73211_OUT_MRES2         3
+#define AS73211_OUT_MRES3         4
+
+#define AS73211_OSR_SS            BIT(7)
+#define AS73211_OSR_PD            BIT(6)
+#define AS73211_OSR_SW_RES        BIT(3)
+#define AS73211_OSR_DOS_MASK      GENMASK(2, 0)
+#define AS73211_OSR_DOS_CONFIG    FIELD_PREP(AS73211_OSR_DOS_MASK, 0x2)
+#define AS73211_OSR_DOS_MEASURE   FIELD_PREP(AS73211_OSR_DOS_MASK, 0x3)
+
+#define AS73211_AGEN_DEVID_MASK   GENMASK(7, 4)
+#define AS73211_AGEN_DEVID(x)     FIELD_PREP(AS73211_AGEN_DEVID_MASK, (x))
+#define AS73211_AGEN_MUT_MASK     GENMASK(3, 0)
+#define AS73211_AGEN_MUT(x)       FIELD_PREP(AS73211_AGEN_MUT_MASK, (x))
+
+#define AS73211_CREG1_GAIN_MASK   GENMASK(7, 4)
+#define AS73211_CREG1_GAIN_1      11
+#define AS73211_CREG1_TIME_MASK   GENMASK(3, 0)
+
+#define AS73211_CREG3_CCLK_MASK   GENMASK(1, 0)
+
+#define AS73211_OSR_STATUS_OUTCONVOF  BIT(15)
+#define AS73211_OSR_STATUS_MRESOF     BIT(14)
+#define AS73211_OSR_STATUS_ADCOF      BIT(13)
+#define AS73211_OSR_STATUS_LDATA      BIT(12)
+#define AS73211_OSR_STATUS_NDATA      BIT(11)
+#define AS73211_OSR_STATUS_NOTREADY   BIT(10)
+
+#define AS73211_SAMPLE_FREQ_BASE      1024000
+
+#define AS73211_SAMPLE_TIME_NUM       15
+#define AS73211_SAMPLE_TIME_MAX_MS    BIT(AS73211_SAMPLE_TIME_NUM - 1)
+
+/* Available sample frequencies are 1.024MHz multiplied by powers of two. */
+static const int as73211_samp_freq_avail[] = {
+	AS73211_SAMPLE_FREQ_BASE * 1,
+	AS73211_SAMPLE_FREQ_BASE * 2,
+	AS73211_SAMPLE_FREQ_BASE * 4,
+	AS73211_SAMPLE_FREQ_BASE * 8,
+};
+
+static const int as73211_hardwaregain_avail[] = {
+	1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048,
+};
+
+/**
+ * struct as73211_data - Instance data for one AS73211
+ * @client: I2C client.
+ * @osr:    Cached Operational State Register.
+ * @creg1:  Cached Configuration Register 1.
+ * @creg2:  Cached Configuration Register 2.
+ * @creg3:  Cached Configuration Register 3.
+ * @mutex:  Keeps cached registers in sync with the device.
+ * @completion: Completion to wait for interrupt.
+ * @int_time_avail: Available integration times (depend on sampling frequency).
+ */
+struct as73211_data {
+	struct i2c_client *client;
+	u8 osr;
+	u8 creg1;
+	u8 creg2;
+	u8 creg3;
+	struct mutex mutex;
+	struct completion completion;
+	int int_time_avail[AS73211_SAMPLE_TIME_NUM * 2];
+};
+
+#define AS73211_COLOR_CHANNEL(_color, _si, _addr) { \
+	.type = IIO_INTENSITY, \
+	.modified = 1, \
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), \
+	.info_mask_shared_by_type = \
+		BIT(IIO_CHAN_INFO_SAMP_FREQ) | \
+		BIT(IIO_CHAN_INFO_HARDWAREGAIN) | \
+		BIT(IIO_CHAN_INFO_INT_TIME), \
+	.info_mask_shared_by_type_available = \
+		BIT(IIO_CHAN_INFO_SAMP_FREQ) | \
+		BIT(IIO_CHAN_INFO_HARDWAREGAIN) | \
+		BIT(IIO_CHAN_INFO_INT_TIME), \
+	.channel2 = IIO_MOD_##_color, \
+	.address = _addr, \
+	.scan_index = _si, \
+	.scan_type = { \
+		.sign = 'u', \
+		.realbits = 16, \
+		.storagebits = 16, \
+		.endianness = IIO_LE, \
+	}, \
+}
+
+#define AS73211_OFFSET_TEMP_INT    (-66)
+#define AS73211_OFFSET_TEMP_MICRO  900000
+#define AS73211_SCALE_TEMP_INT     0
+#define AS73211_SCALE_TEMP_MICRO   50000
+
+#define AS73211_SCALE_X 277071108  /* nW/m^2 */
+#define AS73211_SCALE_Y 298384270  /* nW/m^2 */
+#define AS73211_SCALE_Z 160241927  /* nW/m^2 */
+
+/* Channel order MUST match devices result register order */
+#define AS73211_SCAN_INDEX_TEMP 0
+#define AS73211_SCAN_INDEX_X    1
+#define AS73211_SCAN_INDEX_Y    2
+#define AS73211_SCAN_INDEX_Z    3
+#define AS73211_SCAN_INDEX_TS   4
+
+#define AS73211_SCAN_MASK_COLOR ( \
+	BIT(AS73211_SCAN_INDEX_X) |   \
+	BIT(AS73211_SCAN_INDEX_Y) |   \
+	BIT(AS73211_SCAN_INDEX_Z))
+
+#define AS73211_SCAN_MASK_ALL (    \
+	BIT(AS73211_SCAN_INDEX_TEMP) | \
+	AS73211_SCAN_MASK_COLOR)
+
+static const struct iio_chan_spec as73211_channels[] = {
+	{
+		.type = IIO_TEMP,
+		.info_mask_separate =
+			BIT(IIO_CHAN_INFO_RAW) |
+			BIT(IIO_CHAN_INFO_OFFSET) |
+			BIT(IIO_CHAN_INFO_SCALE),
+		.address = AS73211_OUT_TEMP,
+		.scan_index = AS73211_SCAN_INDEX_TEMP,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 16,
+			.storagebits = 16,
+			.endianness = IIO_LE,
+		}
+	},
+	AS73211_COLOR_CHANNEL(X, AS73211_SCAN_INDEX_X, AS73211_OUT_MRES1),
+	AS73211_COLOR_CHANNEL(Y, AS73211_SCAN_INDEX_Y, AS73211_OUT_MRES2),
+	AS73211_COLOR_CHANNEL(Z, AS73211_SCAN_INDEX_Z, AS73211_OUT_MRES3),
+	IIO_CHAN_SOFT_TIMESTAMP(AS73211_SCAN_INDEX_TS),
+};
+
+static unsigned int as73211_integration_time_1024cyc(struct as73211_data *data)
+{
+	/*
+	 * Return integration time in units of 1024 clock cycles. Integration time
+	 * in CREG1 is in powers of 2 (x 1024 cycles).
+	 */
+	return BIT(FIELD_GET(AS73211_CREG1_TIME_MASK, data->creg1));
+}
+
+static unsigned int as73211_integration_time_us(struct as73211_data *data,
+						 unsigned int integration_time_1024cyc)
+{
+	/*
+	 * f_samp is configured in CREG3 in powers of 2 (x 1.024 MHz)
+	 * t_cycl is configured in CREG1 in powers of 2 (x 1024 cycles)
+	 * t_int_us = 1 / (f_samp) * t_cycl * US_PER_SEC
+	 *          = 1 / (2^CREG3_CCLK * 1,024,000) * 2^CREG1_CYCLES * 1,024 * US_PER_SEC
+	 *          = 2^(-CREG3_CCLK) * 2^CREG1_CYCLES * 1,000
+	 * In order to get rid of negative exponents, we extend the "fraction"
+	 * by 2^3 (CREG3_CCLK,max = 3)
+	 * t_int_us = 2^(3-CREG3_CCLK) * 2^CREG1_CYCLES * 125
+	 */
+	return BIT(3 - FIELD_GET(AS73211_CREG3_CCLK_MASK, data->creg3)) *
+		integration_time_1024cyc * 125;
+}
+
+static void as73211_integration_time_calc_avail(struct as73211_data *data)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(data->int_time_avail) / 2; i++) {
+		unsigned int time_us = as73211_integration_time_us(data, BIT(i));
+
+		data->int_time_avail[i * 2 + 0] = time_us / USEC_PER_SEC;
+		data->int_time_avail[i * 2 + 1] = time_us % USEC_PER_SEC;
+	}
+}
+
+static unsigned int as73211_gain(struct as73211_data *data)
+{
+	/* gain can be calculated from CREG1 as 2^(11 - CREG1_GAIN) */
+	return BIT(AS73211_CREG1_GAIN_1 - FIELD_GET(AS73211_CREG1_GAIN_MASK, data->creg1));
+}
+
+/* must be called with as73211_data::mutex held. */
+static int as73211_req_data(struct as73211_data *data)
+{
+	unsigned int time_us = as73211_integration_time_us(data,
+							    as73211_integration_time_1024cyc(data));
+	struct device *dev = &data->client->dev;
+	union i2c_smbus_data smbus_data;
+	u16 osr_status;
+	int ret;
+
+	if (data->client->irq)
+		reinit_completion(&data->completion);
+
+	/*
+	 * During measurement, there should be no traffic on the i2c bus as the
+	 * electrical noise would disturb the measurement process.
+	 */
+	i2c_lock_bus(data->client->adapter, I2C_LOCK_SEGMENT);
+
+	data->osr &= ~AS73211_OSR_DOS_MASK;
+	data->osr |= AS73211_OSR_DOS_MEASURE | AS73211_OSR_SS;
+
+	smbus_data.byte = data->osr;
+	ret = __i2c_smbus_xfer(data->client->adapter, data->client->addr,
+			data->client->flags, I2C_SMBUS_WRITE,
+			AS73211_REG_OSR, I2C_SMBUS_BYTE_DATA, &smbus_data);
+	if (ret < 0) {
+		i2c_unlock_bus(data->client->adapter, I2C_LOCK_SEGMENT);
+		return ret;
+	}
+
+	/*
+	 * Reset AS73211_OSR_SS (is self clearing) in order to avoid unintentional
+	 * triggering of further measurements later.
+	 */
+	data->osr &= ~AS73211_OSR_SS;
+
+	/*
+	 * Add 33% extra margin for the timeout. fclk,min = fclk,typ - 27%.
+	 */
+	time_us += time_us / 3;
+	if (data->client->irq) {
+		ret = wait_for_completion_timeout(&data->completion, usecs_to_jiffies(time_us));
+		if (!ret) {
+			dev_err(dev, "timeout waiting for READY IRQ\n");
+			i2c_unlock_bus(data->client->adapter, I2C_LOCK_SEGMENT);
+			return -ETIMEDOUT;
+		}
+	} else {
+		/* Wait integration time */
+		usleep_range(time_us, 2 * time_us);
+	}
+
+	i2c_unlock_bus(data->client->adapter, I2C_LOCK_SEGMENT);
+
+	ret = i2c_smbus_read_word_data(data->client, AS73211_OUT_OSR_STATUS);
+	if (ret < 0)
+		return ret;
+
+	osr_status = ret;
+	if (osr_status != (AS73211_OSR_DOS_MEASURE | AS73211_OSR_STATUS_NDATA)) {
+		if (osr_status & AS73211_OSR_SS) {
+			dev_err(dev, "%s() Measurement has not stopped\n", __func__);
+			return -ETIME;
+		}
+		if (osr_status & AS73211_OSR_STATUS_NOTREADY) {
+			dev_err(dev, "%s() Data is not ready\n", __func__);
+			return -ENODATA;
+		}
+		if (!(osr_status & AS73211_OSR_STATUS_NDATA)) {
+			dev_err(dev, "%s() No new data available\n", __func__);
+			return -ENODATA;
+		}
+		if (osr_status & AS73211_OSR_STATUS_LDATA) {
+			dev_err(dev, "%s() Result buffer overrun\n", __func__);
+			return -ENOBUFS;
+		}
+		if (osr_status & AS73211_OSR_STATUS_ADCOF) {
+			dev_err(dev, "%s() ADC overflow\n", __func__);
+			return -EOVERFLOW;
+		}
+		if (osr_status & AS73211_OSR_STATUS_MRESOF) {
+			dev_err(dev, "%s() Measurement result overflow\n", __func__);
+			return -EOVERFLOW;
+		}
+		if (osr_status & AS73211_OSR_STATUS_OUTCONVOF) {
+			dev_err(dev, "%s() Timer overflow\n", __func__);
+			return -EOVERFLOW;
+		}
+		dev_err(dev, "%s() Unexpected status value\n", __func__);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int as73211_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan,
+			     int *val, int *val2, long mask)
+{
+	struct as73211_data *data = iio_priv(indio_dev);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW: {
+		int ret;
+
+		ret = iio_device_claim_direct_mode(indio_dev);
+		if (ret < 0)
+			return ret;
+
+		ret = as73211_req_data(data);
+		if (ret < 0) {
+			iio_device_release_direct_mode(indio_dev);
+			return ret;
+		}
+
+		ret = i2c_smbus_read_word_data(data->client, chan->address);
+		iio_device_release_direct_mode(indio_dev);
+		if (ret < 0)
+			return ret;
+
+		*val = ret;
+		return IIO_VAL_INT;
+	}
+	case IIO_CHAN_INFO_OFFSET:
+		*val = AS73211_OFFSET_TEMP_INT;
+		*val2 = AS73211_OFFSET_TEMP_MICRO;
+		return IIO_VAL_INT_PLUS_MICRO;
+
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->type) {
+		case IIO_TEMP:
+			*val = AS73211_SCALE_TEMP_INT;
+			*val2 = AS73211_SCALE_TEMP_MICRO;
+			return IIO_VAL_INT_PLUS_MICRO;
+
+		case IIO_INTENSITY: {
+			unsigned int scale;
+
+			switch (chan->channel2) {
+			case IIO_MOD_X:
+				scale = AS73211_SCALE_X;
+				break;
+			case IIO_MOD_Y:
+				scale = AS73211_SCALE_Y;
+				break;
+			case IIO_MOD_Z:
+				scale = AS73211_SCALE_Z;
+				break;
+			default:
+				return -EINVAL;
+			}
+			scale /= as73211_gain(data);
+			scale /= as73211_integration_time_1024cyc(data);
+			*val = scale;
+			return IIO_VAL_INT;
+
+		default:
+			return -EINVAL;
+		}}
+
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		/* f_samp is configured in CREG3 in powers of 2 (x 1.024 MHz) */
+		*val = BIT(FIELD_GET(AS73211_CREG3_CCLK_MASK, data->creg3)) *
+			AS73211_SAMPLE_FREQ_BASE;
+		return IIO_VAL_INT;
+
+	case IIO_CHAN_INFO_HARDWAREGAIN:
+		*val = as73211_gain(data);
+		return IIO_VAL_INT;
+
+	case IIO_CHAN_INFO_INT_TIME: {
+		unsigned int time_us;
+
+		mutex_lock(&data->mutex);
+		time_us = as73211_integration_time_us(data, as73211_integration_time_1024cyc(data));
+		mutex_unlock(&data->mutex);
+		*val = time_us / USEC_PER_SEC;
+		*val2 = time_us % USEC_PER_SEC;
+		return IIO_VAL_INT_PLUS_MICRO;
+
+	default:
+		return -EINVAL;
+	}}
+}
+
+static int as73211_read_avail(struct iio_dev *indio_dev, struct iio_chan_spec const *chan,
+			       const int **vals, int *type, int *length, long mask)
+{
+	struct as73211_data *data = iio_priv(indio_dev);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		*length = ARRAY_SIZE(as73211_samp_freq_avail);
+		*vals = as73211_samp_freq_avail;
+		*type = IIO_VAL_INT;
+		return IIO_AVAIL_LIST;
+
+	case IIO_CHAN_INFO_HARDWAREGAIN:
+		*length = ARRAY_SIZE(as73211_hardwaregain_avail);
+		*vals = as73211_hardwaregain_avail;
+		*type = IIO_VAL_INT;
+		return IIO_AVAIL_LIST;
+
+	case IIO_CHAN_INFO_INT_TIME:
+		*length = ARRAY_SIZE(data->int_time_avail);
+		*vals = data->int_time_avail;
+		*type = IIO_VAL_INT_PLUS_MICRO;
+		return IIO_AVAIL_LIST;
+
+	default:
+		return -EINVAL;
+	}
+}
+
+static int _as73211_write_raw(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan __always_unused,
+			       int val, int val2, long mask)
+{
+	struct as73211_data *data = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SAMP_FREQ: {
+		int reg_bits, freq_kHz = val / HZ_PER_KHZ;  /* 1024, 2048, ... */
+
+		/* val must be 1024 * 2^x */
+		if (val < 0 || (freq_kHz * HZ_PER_KHZ) != val ||
+				!is_power_of_2(freq_kHz) || val2)
+			return -EINVAL;
+
+		/* f_samp is configured in CREG3 in powers of 2 (x 1.024 MHz (=2^10)) */
+		reg_bits = ilog2(freq_kHz) - 10;
+		if (!FIELD_FIT(AS73211_CREG3_CCLK_MASK, reg_bits))
+			return -EINVAL;
+
+		data->creg3 &= ~AS73211_CREG3_CCLK_MASK;
+		data->creg3 |= FIELD_PREP(AS73211_CREG3_CCLK_MASK, reg_bits);
+		as73211_integration_time_calc_avail(data);
+
+		ret = i2c_smbus_write_byte_data(data->client, AS73211_REG_CREG3, data->creg3);
+		if (ret < 0)
+			return ret;
+
+		return 0;
+	}
+	case IIO_CHAN_INFO_HARDWAREGAIN: {
+		unsigned int reg_bits;
+
+		if (val < 0 || !is_power_of_2(val) || val2)
+			return -EINVAL;
+
+		/* gain can be calculated from CREG1 as 2^(11 - CREG1_GAIN) */
+		reg_bits = AS73211_CREG1_GAIN_1 - ilog2(val);
+		if (!FIELD_FIT(AS73211_CREG1_GAIN_MASK, reg_bits))
+			return -EINVAL;
+
+		data->creg1 &= ~AS73211_CREG1_GAIN_MASK;
+		data->creg1 |= FIELD_PREP(AS73211_CREG1_GAIN_MASK, reg_bits);
+
+		ret = i2c_smbus_write_byte_data(data->client, AS73211_REG_CREG1, data->creg1);
+		if (ret < 0)
+			return ret;
+
+		return 0;
+	}
+	case IIO_CHAN_INFO_INT_TIME: {
+		int val_us = val * USEC_PER_SEC + val2;
+		int time_ms;
+		int reg_bits;
+
+		/* f_samp is configured in CREG3 in powers of 2 (x 1.024 MHz) */
+		int f_samp_1_024mhz = BIT(FIELD_GET(AS73211_CREG3_CCLK_MASK, data->creg3));
+
+		/*
+		 * time_ms = time_us * US_PER_MS * f_samp_1_024mhz / MHZ_PER_HZ
+		 *         = time_us * f_samp_1_024mhz / 1000
+		 */
+		time_ms = (val_us * f_samp_1_024mhz) / 1000;  /* 1 ms, 2 ms, ... (power of two) */
+		if (time_ms < 0 || !is_power_of_2(time_ms) || time_ms > AS73211_SAMPLE_TIME_MAX_MS)
+			return -EINVAL;
+
+		reg_bits = ilog2(time_ms);
+		if (!FIELD_FIT(AS73211_CREG1_TIME_MASK, reg_bits))
+			return -EINVAL;  /* not possible due to previous tests */
+
+		data->creg1 &= ~AS73211_CREG1_TIME_MASK;
+		data->creg1 |= FIELD_PREP(AS73211_CREG1_TIME_MASK, reg_bits);
+
+		ret = i2c_smbus_write_byte_data(data->client, AS73211_REG_CREG1, data->creg1);
+		if (ret < 0)
+			return ret;
+
+		return 0;
+
+	default:
+		return -EINVAL;
+	}}
+}
+
+static int as73211_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan,
+			      int val, int val2, long mask)
+{
+	struct as73211_data *data = iio_priv(indio_dev);
+	int ret;
+
+	mutex_lock(&data->mutex);
+
+	ret = iio_device_claim_direct_mode(indio_dev);
+	if (ret < 0)
+		goto error_unlock;
+
+	/* Need to switch to config mode ... */
+	if ((data->osr & AS73211_OSR_DOS_MASK) != AS73211_OSR_DOS_CONFIG) {
+		data->osr &= ~AS73211_OSR_DOS_MASK;
+		data->osr |= AS73211_OSR_DOS_CONFIG;
+
+		ret = i2c_smbus_write_byte_data(data->client, AS73211_REG_OSR, data->osr);
+		if (ret < 0)
+			goto error_release;
+	}
+
+	ret = _as73211_write_raw(indio_dev, chan, val, val2, mask);
+
+error_release:
+	iio_device_release_direct_mode(indio_dev);
+error_unlock:
+	mutex_unlock(&data->mutex);
+	return ret;
+}
+
+static irqreturn_t as73211_ready_handler(int irq __always_unused, void *priv)
+{
+	struct as73211_data *data = iio_priv(priv);
+
+	complete(&data->completion);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t as73211_trigger_handler(int irq __always_unused, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct as73211_data *data = iio_priv(indio_dev);
+	struct {
+		__le16 chan[4];
+		s64 ts __aligned(8);
+	} scan;
+	int data_result, ret;
+
+	mutex_lock(&data->mutex);
+
+	data_result = as73211_req_data(data);
+	if (data_result < 0 && data_result != -EOVERFLOW)
+		goto done;  /* don't push any data for errors other than EOVERFLOW */
+
+	if (*indio_dev->active_scan_mask == AS73211_SCAN_MASK_ALL) {
+		/* Optimization for reading all (color + temperature) channels */
+		u8 addr = as73211_channels[0].address;
+		struct i2c_msg msgs[] = {
+			{
+				.addr = data->client->addr,
+				.flags = 0,
+				.len = 1,
+				.buf = &addr,
+			},
+			{
+				.addr = data->client->addr,
+				.flags = I2C_M_RD,
+				.len = sizeof(scan.chan),
+				.buf = (u8 *)&scan.chan,
+			},
+		};
+
+		ret = i2c_transfer(data->client->adapter, msgs, ARRAY_SIZE(msgs));
+		if (ret < 0)
+			goto done;
+	} else {
+		/* Optimization for reading only color channels */
+
+		/* AS73211 starts reading at address 2 */
+		ret = i2c_master_recv(data->client,
+				(char *)&scan.chan[1], 3 * sizeof(scan.chan[1]));
+		if (ret < 0)
+			goto done;
+	}
+
+	if (data_result) {
+		/*
+		 * Saturate all channels (in case of overflows). Temperature channel
+		 * is not affected by overflows.
+		 */
+		scan.chan[1] = cpu_to_le16(U16_MAX);
+		scan.chan[2] = cpu_to_le16(U16_MAX);
+		scan.chan[3] = cpu_to_le16(U16_MAX);
+	}
+
+	iio_push_to_buffers_with_timestamp(indio_dev, &scan, iio_get_time_ns(indio_dev));
+
+done:
+	mutex_unlock(&data->mutex);
+	iio_trigger_notify_done(indio_dev->trig);
+
+	return IRQ_HANDLED;
+}
+
+static const struct iio_info as73211_info = {
+	.read_raw = as73211_read_raw,
+	.read_avail = as73211_read_avail,
+	.write_raw = as73211_write_raw,
+};
+
+static int as73211_power(struct iio_dev *indio_dev, bool state)
+{
+	struct as73211_data *data = iio_priv(indio_dev);
+	int ret;
+
+	mutex_lock(&data->mutex);
+
+	if (state)
+		data->osr &= ~AS73211_OSR_PD;
+	else
+		data->osr |= AS73211_OSR_PD;
+
+	ret = i2c_smbus_write_byte_data(data->client, AS73211_REG_OSR, data->osr);
+
+	mutex_unlock(&data->mutex);
+
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static void as73211_power_disable(void *data)
+{
+	struct iio_dev *indio_dev = data;
+
+	as73211_power(indio_dev, false);
+}
+
+static int as73211_probe(struct i2c_client *client)
+{
+	struct device *dev = &client->dev;
+	struct as73211_data *data;
+	struct iio_dev *indio_dev;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	data = iio_priv(indio_dev);
+	i2c_set_clientdata(client, indio_dev);
+	data->client = client;
+
+	mutex_init(&data->mutex);
+	init_completion(&data->completion);
+
+	indio_dev->info = &as73211_info;
+	indio_dev->name = AS73211_DRV_NAME;
+	indio_dev->channels = as73211_channels;
+	indio_dev->num_channels = ARRAY_SIZE(as73211_channels);
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = i2c_smbus_read_byte_data(data->client, AS73211_REG_OSR);
+	if (ret < 0)
+		return ret;
+	data->osr = ret;
+
+	/* reset device */
+	data->osr |= AS73211_OSR_SW_RES;
+	ret = i2c_smbus_write_byte_data(data->client, AS73211_REG_OSR, data->osr);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_smbus_read_byte_data(data->client, AS73211_REG_OSR);
+	if (ret < 0)
+		return ret;
+	data->osr = ret;
+
+	/*
+	 * Reading AGEN is only possible after reset (AGEN is not available if
+	 * device is in measurement mode).
+	 */
+	ret = i2c_smbus_read_byte_data(data->client, AS73211_REG_AGEN);
+	if (ret < 0)
+		return ret;
+
+	/* At the time of writing this driver, only DEVID 2 and MUT 1 are known. */
+	if ((ret & AS73211_AGEN_DEVID_MASK) != AS73211_AGEN_DEVID(2) ||
+	    (ret & AS73211_AGEN_MUT_MASK) != AS73211_AGEN_MUT(1))
+		return -ENODEV;
+
+	ret = i2c_smbus_read_byte_data(data->client, AS73211_REG_CREG1);
+	if (ret < 0)
+		return ret;
+	data->creg1 = ret;
+
+	ret = i2c_smbus_read_byte_data(data->client, AS73211_REG_CREG2);
+	if (ret < 0)
+		return ret;
+	data->creg2 = ret;
+
+	ret = i2c_smbus_read_byte_data(data->client, AS73211_REG_CREG3);
+	if (ret < 0)
+		return ret;
+	data->creg3 = ret;
+	as73211_integration_time_calc_avail(data);
+
+	ret = as73211_power(indio_dev, true);
+	if (ret < 0)
+		return ret;
+
+	ret = devm_add_action_or_reset(dev, as73211_power_disable, indio_dev);
+	if (ret)
+		return ret;
+
+	ret = devm_iio_triggered_buffer_setup(dev, indio_dev, NULL, as73211_trigger_handler, NULL);
+	if (ret)
+		return ret;
+
+	if (client->irq) {
+		ret = devm_request_threaded_irq(&client->dev, client->irq,
+				NULL,
+				as73211_ready_handler,
+				IRQF_ONESHOT,
+				client->name, indio_dev);
+		if (ret)
+			return ret;
+	}
+
+	return devm_iio_device_register(dev, indio_dev);
+}
+
+static int __maybe_unused as73211_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+
+	return as73211_power(indio_dev, false);
+}
+
+static int __maybe_unused as73211_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+
+	return as73211_power(indio_dev, true);
+}
+
+static SIMPLE_DEV_PM_OPS(as73211_pm_ops, as73211_suspend, as73211_resume);
+
+static const struct of_device_id as73211_of_match[] = {
+	{ .compatible = "ams,as73211" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, as73211_of_match);
+
+static const struct i2c_device_id as73211_id[] = {
+	{ "as73211", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, as73211_id);
+
+static struct i2c_driver as73211_driver = {
+	.driver = {
+		.name           = AS73211_DRV_NAME,
+		.of_match_table = as73211_of_match,
+		.pm             = &as73211_pm_ops,
+	},
+	.probe_new  = as73211_probe,
+	.id_table   = as73211_id,
+};
+module_i2c_driver(as73211_driver);
+
+MODULE_AUTHOR("Christian Eggers <ceggers@arri.de>");
+MODULE_DESCRIPTION("AS73211 XYZ True Color Sensor driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/iio/light/cros_ec_light_prox.c b/drivers/iio/light/cros_ec_light_prox.c
index fed79ba27fda..75d6b5fcf2cc 100644
--- a/drivers/iio/light/cros_ec_light_prox.c
+++ b/drivers/iio/light/cros_ec_light_prox.c
@@ -182,12 +182,11 @@ static int cros_ec_light_prox_probe(struct platform_device *pdev)
 
 	ret = cros_ec_sensors_core_init(pdev, indio_dev, true,
 					cros_ec_sensors_capture,
-					cros_ec_sensors_push_data);
+					cros_ec_sensors_push_data,
+					true);
 	if (ret)
 		return ret;
 
-	iio_buffer_set_attrs(indio_dev->buffer, cros_ec_sensor_fifo_attributes);
-
 	indio_dev->info = &cros_ec_light_prox_info;
 	state = iio_priv(indio_dev);
 	state->core.type = state->core.resp->info.type;
diff --git a/drivers/iio/light/gp2ap002.c b/drivers/iio/light/gp2ap002.c
index d5e1cd27eb46..7ba7aa59437c 100644
--- a/drivers/iio/light/gp2ap002.c
+++ b/drivers/iio/light/gp2ap002.c
@@ -566,7 +566,7 @@ static int gp2ap002_probe(struct i2c_client *client,
 
 	/*
 	 * Initialize the device and signal to runtime PM that now we are
-	 * definately up and using power.
+	 * definitely up and using power.
 	 */
 	ret = gp2ap002_init(gp2ap002);
 	if (ret) {
diff --git a/drivers/iio/light/isl29018.c b/drivers/iio/light/isl29018.c
index ac8ad0f32689..2689867467a8 100644
--- a/drivers/iio/light/isl29018.c
+++ b/drivers/iio/light/isl29018.c
@@ -746,12 +746,9 @@ static int isl29018_probe(struct i2c_client *client,
 	chip->suspended = false;
 
 	chip->vcc_reg = devm_regulator_get(&client->dev, "vcc");
-	if (IS_ERR(chip->vcc_reg)) {
-		err = PTR_ERR(chip->vcc_reg);
-		if (err != -EPROBE_DEFER)
-			dev_err(&client->dev, "failed to get VCC regulator!\n");
-		return err;
-	}
+	if (IS_ERR(chip->vcc_reg))
+		return dev_err_probe(&client->dev, PTR_ERR(chip->vcc_reg),
+				     "failed to get VCC regulator!\n");
 
 	err = regulator_enable(chip->vcc_reg);
 	if (err) {
diff --git a/drivers/iio/light/si1145.c b/drivers/iio/light/si1145.c
index 8f5f857c2e7d..b304801c7916 100644
--- a/drivers/iio/light/si1145.c
+++ b/drivers/iio/light/si1145.c
@@ -168,6 +168,7 @@ struct si1145_part_info {
  * @part_info:	Part information
  * @trig:	Pointer to iio trigger
  * @meas_rate:	Value of MEAS_RATE register. Only set in HW in auto mode
+ * @buffer:	Used to pack data read from sensor.
  */
 struct si1145_data {
 	struct i2c_client *client;
@@ -179,6 +180,14 @@ struct si1145_data {
 	bool autonomous;
 	struct iio_trigger *trig;
 	int meas_rate;
+	/*
+	 * Ensure timestamp will be naturally aligned if present.
+	 * Maximum buffer size (may be only partly used if not all
+	 * channels are enabled):
+	 *   6*2 bytes channels data + 4 bytes alignment +
+	 *   8 bytes timestamp
+	 */
+	u8 buffer[24] __aligned(8);
 };
 
 /*
@@ -440,12 +449,6 @@ static irqreturn_t si1145_trigger_handler(int irq, void *private)
 	struct iio_poll_func *pf = private;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct si1145_data *data = iio_priv(indio_dev);
-	/*
-	 * Maximum buffer size:
-	 *   6*2 bytes channels data + 4 bytes alignment +
-	 *   8 bytes timestamp
-	 */
-	u8 buffer[24];
 	int i, j = 0;
 	int ret;
 	u8 irq_status = 0;
@@ -478,7 +481,7 @@ static irqreturn_t si1145_trigger_handler(int irq, void *private)
 
 		ret = i2c_smbus_read_i2c_block_data_or_emulated(
 				data->client, indio_dev->channels[i].address,
-				sizeof(u16) * run, &buffer[j]);
+				sizeof(u16) * run, &data->buffer[j]);
 		if (ret < 0)
 			goto done;
 		j += run * sizeof(u16);
@@ -493,7 +496,7 @@ static irqreturn_t si1145_trigger_handler(int irq, void *private)
 			goto done;
 	}
 
-	iio_push_to_buffers_with_timestamp(indio_dev, buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
 		iio_get_time_ns(indio_dev));
 
 done:
diff --git a/drivers/iio/light/tsl2772.c b/drivers/iio/light/tsl2772.c
index 735399405417..d79205361dfa 100644
--- a/drivers/iio/light/tsl2772.c
+++ b/drivers/iio/light/tsl2772.c
@@ -1776,14 +1776,8 @@ static int tsl2772_probe(struct i2c_client *clientp,
 	ret = devm_regulator_bulk_get(&clientp->dev,
 				      ARRAY_SIZE(chip->supplies),
 				      chip->supplies);
-	if (ret < 0) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(&clientp->dev,
-				"Failed to get regulators: %d\n",
-				ret);
-
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(&clientp->dev, ret, "Failed to get regulators\n");
 
 	ret = regulator_bulk_enable(ARRAY_SIZE(chip->supplies), chip->supplies);
 	if (ret < 0) {
diff --git a/drivers/iio/magnetometer/ak8974.c b/drivers/iio/magnetometer/ak8974.c
index cbb44e401c0a..24b2f7b1fe44 100644
--- a/drivers/iio/magnetometer/ak8974.c
+++ b/drivers/iio/magnetometer/ak8974.c
@@ -12,6 +12,7 @@
  * Author: Linus Walleij <linus.walleij@linaro.org>
  */
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/kernel.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
@@ -843,15 +844,8 @@ static int ak8974_probe(struct i2c_client *i2c,
 	ret = devm_regulator_bulk_get(&i2c->dev,
 				      ARRAY_SIZE(ak8974->regs),
 				      ak8974->regs);
-	if (ret < 0) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(&i2c->dev, "cannot get regulators: %d\n", ret);
-		else
-			dev_dbg(&i2c->dev,
-				"regulators unavailable, deferring probe\n");
-
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(&i2c->dev, ret, "cannot get regulators\n");
 
 	ret = regulator_bulk_enable(ARRAY_SIZE(ak8974->regs), ak8974->regs);
 	if (ret < 0) {
@@ -1058,7 +1052,7 @@ static struct i2c_driver ak8974_driver = {
 	.driver	 = {
 		.name	= "ak8974",
 		.pm = &ak8974_dev_pm_ops,
-		.of_match_table = of_match_ptr(ak8974_of_match),
+		.of_match_table = ak8974_of_match,
 	},
 	.probe	  = ak8974_probe,
 	.remove	  = ak8974_remove,
diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index 623766ff800b..d988b6ac3659 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
@@ -17,7 +18,6 @@
 #include <linux/delay.h>
 #include <linux/bitops.h>
 #include <linux/gpio/consumer.h>
-#include <linux/acpi.h>
 #include <linux/regulator/consumer.h>
 #include <linux/pm_runtime.h>
 
@@ -779,7 +779,6 @@ static const struct iio_info ak8975_info = {
 	.read_raw = &ak8975_read_raw,
 };
 
-#ifdef CONFIG_ACPI
 static const struct acpi_device_id ak_acpi_match[] = {
 	{"AK8975", AK8975},
 	{"AK8963", AK8963},
@@ -791,7 +790,6 @@ static const struct acpi_device_id ak_acpi_match[] = {
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, ak_acpi_match);
-#endif
 
 static void ak8975_fill_buffer(struct iio_dev *indio_dev)
 {
@@ -1081,8 +1079,8 @@ static struct i2c_driver ak8975_driver = {
 	.driver = {
 		.name	= "ak8975",
 		.pm = &ak8975_dev_pm_ops,
-		.of_match_table = of_match_ptr(ak8975_of_match),
-		.acpi_match_table = ACPI_PTR(ak_acpi_match),
+		.of_match_table = ak8975_of_match,
+		.acpi_match_table = ak_acpi_match,
 	},
 	.probe		= ak8975_probe,
 	.remove		= ak8975_remove,
diff --git a/drivers/iio/magnetometer/hmc5843_core.c b/drivers/iio/magnetometer/hmc5843_core.c
index 1474ba63babe..780faea61d82 100644
--- a/drivers/iio/magnetometer/hmc5843_core.c
+++ b/drivers/iio/magnetometer/hmc5843_core.c
@@ -245,7 +245,7 @@ static const struct iio_enum hmc5843_meas_conf_enum = {
 };
 
 static const struct iio_chan_spec_ext_info hmc5843_ext_info[] = {
-	IIO_ENUM("meas_conf", true, &hmc5843_meas_conf_enum),
+	IIO_ENUM("meas_conf", IIO_SHARED_BY_TYPE, &hmc5843_meas_conf_enum),
 	IIO_ENUM_AVAILABLE("meas_conf", &hmc5843_meas_conf_enum),
 	IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, hmc5843_get_mount_matrix),
 	{ }
@@ -259,7 +259,7 @@ static const struct iio_enum hmc5983_meas_conf_enum = {
 };
 
 static const struct iio_chan_spec_ext_info hmc5983_ext_info[] = {
-	IIO_ENUM("meas_conf", true, &hmc5983_meas_conf_enum),
+	IIO_ENUM("meas_conf", IIO_SHARED_BY_TYPE, &hmc5983_meas_conf_enum),
 	IIO_ENUM_AVAILABLE("meas_conf", &hmc5983_meas_conf_enum),
 	IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, hmc5843_get_mount_matrix),
 	{ }
diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c
index 4d305a21c379..838b13c8bb3d 100644
--- a/drivers/iio/magnetometer/mag3110.c
+++ b/drivers/iio/magnetometer/mag3110.c
@@ -476,22 +476,14 @@ static int mag3110_probe(struct i2c_client *client,
 	data = iio_priv(indio_dev);
 
 	data->vdd_reg = devm_regulator_get(&client->dev, "vdd");
-	if (IS_ERR(data->vdd_reg)) {
-		if (PTR_ERR(data->vdd_reg) == -EPROBE_DEFER)
-			return -EPROBE_DEFER;
-
-		dev_err(&client->dev, "failed to get VDD regulator!\n");
-		return PTR_ERR(data->vdd_reg);
-	}
+	if (IS_ERR(data->vdd_reg))
+		return dev_err_probe(&client->dev, PTR_ERR(data->vdd_reg),
+				     "failed to get VDD regulator!\n");
 
 	data->vddio_reg = devm_regulator_get(&client->dev, "vddio");
-	if (IS_ERR(data->vddio_reg)) {
-		if (PTR_ERR(data->vddio_reg) == -EPROBE_DEFER)
-			return -EPROBE_DEFER;
-
-		dev_err(&client->dev, "failed to get VDDIO regulator!\n");
-		return PTR_ERR(data->vddio_reg);
-	}
+	if (IS_ERR(data->vddio_reg))
+		return dev_err_probe(&client->dev, PTR_ERR(data->vddio_reg),
+				     "failed to get VDDIO regulator!\n");
 
 	ret = regulator_enable(data->vdd_reg);
 	if (ret) {
diff --git a/drivers/iio/multiplexer/iio-mux.c b/drivers/iio/multiplexer/iio-mux.c
index 6910218fdb00..d54ae5cbe51b 100644
--- a/drivers/iio/multiplexer/iio-mux.c
+++ b/drivers/iio/multiplexer/iio-mux.c
@@ -354,11 +354,9 @@ static int mux_probe(struct platform_device *pdev)
 		return -ENODEV;
 
 	parent = devm_iio_channel_get(dev, "parent");
-	if (IS_ERR(parent)) {
-		if (PTR_ERR(parent) != -EPROBE_DEFER)
-			dev_err(dev, "failed to get parent channel\n");
-		return PTR_ERR(parent);
-	}
+	if (IS_ERR(parent))
+		return dev_err_probe(dev, PTR_ERR(parent),
+				     "failed to get parent channel\n");
 
 	sizeof_ext_info = iio_get_channel_ext_info_count(parent);
 	if (sizeof_ext_info) {
diff --git a/drivers/iio/potentiometer/ad5272.c b/drivers/iio/potentiometer/ad5272.c
index 933afcf7e925..70c45d346df0 100644
--- a/drivers/iio/potentiometer/ad5272.c
+++ b/drivers/iio/potentiometer/ad5272.c
@@ -15,6 +15,7 @@
 #include <linux/i2c.h>
 #include <linux/iio/iio.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 
 #define  AD5272_RDAC_WR  1
 #define  AD5272_RDAC_RD  2
@@ -192,7 +193,6 @@ static int ad5272_probe(struct i2c_client *client,
 	return devm_iio_device_register(dev, indio_dev);
 }
 
-#if defined(CONFIG_OF)
 static const struct of_device_id ad5272_dt_ids[] = {
 	{ .compatible = "adi,ad5272-020", .data = (void *)AD5272_020 },
 	{ .compatible = "adi,ad5272-050", .data = (void *)AD5272_050 },
@@ -202,7 +202,6 @@ static const struct of_device_id ad5272_dt_ids[] = {
 	{}
 };
 MODULE_DEVICE_TABLE(of, ad5272_dt_ids);
-#endif /* CONFIG_OF */
 
 static const struct i2c_device_id ad5272_id[] = {
 	{ "ad5272-020", AD5272_020 },
@@ -217,7 +216,7 @@ MODULE_DEVICE_TABLE(i2c, ad5272_id);
 static struct i2c_driver ad5272_driver = {
 	.driver = {
 		.name	= "ad5272",
-		.of_match_table = of_match_ptr(ad5272_dt_ids),
+		.of_match_table = ad5272_dt_ids,
 	},
 	.probe		= ad5272_probe,
 	.id_table	= ad5272_id,
diff --git a/drivers/iio/potentiometer/ds1803.c b/drivers/iio/potentiometer/ds1803.c
index 5c061ab8f46c..20b45407eaac 100644
--- a/drivers/iio/potentiometer/ds1803.c
+++ b/drivers/iio/potentiometer/ds1803.c
@@ -14,7 +14,7 @@
 #include <linux/i2c.h>
 #include <linux/iio/iio.h>
 #include <linux/module.h>
-#include <linux/of.h>
+#include <linux/mod_devicetable.h>
 
 #define DS1803_MAX_POS		255
 #define DS1803_WRITE(chan)	(0xa8 | ((chan) + 1))
@@ -134,7 +134,6 @@ static int ds1803_probe(struct i2c_client *client,
 	return devm_iio_device_register(dev, indio_dev);
 }
 
-#if defined(CONFIG_OF)
 static const struct of_device_id ds1803_dt_ids[] = {
 	{ .compatible = "maxim,ds1803-010", .data = &ds1803_cfg[DS1803_010] },
 	{ .compatible = "maxim,ds1803-050", .data = &ds1803_cfg[DS1803_050] },
@@ -142,7 +141,6 @@ static const struct of_device_id ds1803_dt_ids[] = {
 	{}
 };
 MODULE_DEVICE_TABLE(of, ds1803_dt_ids);
-#endif /* CONFIG_OF */
 
 static const struct i2c_device_id ds1803_id[] = {
 	{ "ds1803-010", DS1803_010 },
@@ -155,7 +153,7 @@ MODULE_DEVICE_TABLE(i2c, ds1803_id);
 static struct i2c_driver ds1803_driver = {
 	.driver = {
 		.name	= "ds1803",
-		.of_match_table = of_match_ptr(ds1803_dt_ids),
+		.of_match_table = ds1803_dt_ids,
 	},
 	.probe		= ds1803_probe,
 	.id_table	= ds1803_id,
diff --git a/drivers/iio/potentiometer/max5432.c b/drivers/iio/potentiometer/max5432.c
index 280de9c54471..aed3b6ab82a2 100644
--- a/drivers/iio/potentiometer/max5432.c
+++ b/drivers/iio/potentiometer/max5432.c
@@ -11,8 +11,8 @@
 #include <linux/iio/iio.h>
 #include <linux/limits.h>
 #include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
+#include <linux/mod_devicetable.h>
+#include <linux/property.h>
 
 /* All chip variants have 32 wiper positions. */
 #define MAX5432_MAX_POS 31
@@ -100,7 +100,7 @@ static int max5432_probe(struct i2c_client *client,
 
 	data = iio_priv(indio_dev);
 	data->client = client;
-	data->ohm = (unsigned long)of_device_get_match_data(dev);
+	data->ohm = (unsigned long)device_get_match_data(dev);
 
 	indio_dev->info = &max5432_info;
 	indio_dev->channels = max5432_channels;
@@ -122,7 +122,7 @@ MODULE_DEVICE_TABLE(of, max5432_dt_ids);
 static struct i2c_driver max5432_driver = {
 	.driver = {
 		.name = "max5432",
-		.of_match_table = of_match_ptr(max5432_dt_ids),
+		.of_match_table = max5432_dt_ids,
 	},
 	.probe = max5432_probe,
 };
diff --git a/drivers/iio/potentiometer/max5481.c b/drivers/iio/potentiometer/max5481.c
index 5f5988189796..a88ed0eb3adc 100644
--- a/drivers/iio/potentiometer/max5481.c
+++ b/drivers/iio/potentiometer/max5481.c
@@ -7,12 +7,11 @@
  * https://datasheets.maximintegrated.com/en/ds/MAX5481-MAX5484.pdf
  */
 
-#include <linux/acpi.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
 #include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
+#include <linux/mod_devicetable.h>
+#include <linux/property.h>
 #include <linux/spi/spi.h>
 
 /* write wiper reg */
@@ -117,7 +116,6 @@ static const struct iio_info max5481_info = {
 	.write_raw = max5481_write_raw,
 };
 
-#if defined(CONFIG_OF)
 static const struct of_device_id max5481_match[] = {
 	{ .compatible = "maxim,max5481", .data = &max5481_cfg[max5481] },
 	{ .compatible = "maxim,max5482", .data = &max5481_cfg[max5482] },
@@ -126,7 +124,6 @@ static const struct of_device_id max5481_match[] = {
 	{ }
 };
 MODULE_DEVICE_TABLE(of, max5481_match);
-#endif
 
 static int max5481_probe(struct spi_device *spi)
 {
@@ -144,7 +141,7 @@ static int max5481_probe(struct spi_device *spi)
 
 	data->spi = spi;
 
-	data->cfg = of_device_get_match_data(&spi->dev);
+	data->cfg = device_get_match_data(&spi->dev);
 	if (!data->cfg)
 		data->cfg = &max5481_cfg[id->driver_data];
 
@@ -184,22 +181,10 @@ static const struct spi_device_id max5481_id_table[] = {
 };
 MODULE_DEVICE_TABLE(spi, max5481_id_table);
 
-#if defined(CONFIG_ACPI)
-static const struct acpi_device_id max5481_acpi_match[] = {
-	{ "max5481", max5481 },
-	{ "max5482", max5482 },
-	{ "max5483", max5483 },
-	{ "max5484", max5484 },
-	{ }
-};
-MODULE_DEVICE_TABLE(acpi, max5481_acpi_match);
-#endif
-
 static struct spi_driver max5481_driver = {
 	.driver = {
 		.name  = "max5481",
-		.of_match_table = of_match_ptr(max5481_match),
-		.acpi_match_table = ACPI_PTR(max5481_acpi_match),
+		.of_match_table = max5481_match,
 	},
 	.probe = max5481_probe,
 	.remove = max5481_remove,
diff --git a/drivers/iio/potentiometer/mcp4018.c b/drivers/iio/potentiometer/mcp4018.c
index fd0579ad3c83..c0e171fec062 100644
--- a/drivers/iio/potentiometer/mcp4018.c
+++ b/drivers/iio/potentiometer/mcp4018.c
@@ -16,8 +16,8 @@
 #include <linux/i2c.h>
 #include <linux/iio/iio.h>
 #include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
+#include <linux/mod_devicetable.h>
+#include <linux/property.h>
 
 #define MCP4018_WIPER_MAX 127
 
@@ -116,8 +116,6 @@ static const struct i2c_device_id mcp4018_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, mcp4018_id);
 
-#ifdef CONFIG_OF
-
 #define MCP4018_COMPATIBLE(of_compatible, cfg) {	\
 	.compatible = of_compatible,			\
 	.data = &mcp4018_cfg[cfg],			\
@@ -140,8 +138,6 @@ static const struct of_device_id mcp4018_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, mcp4018_of_match);
 
-#endif
-
 static int mcp4018_probe(struct i2c_client *client)
 {
 	struct device *dev = &client->dev;
@@ -161,7 +157,7 @@ static int mcp4018_probe(struct i2c_client *client)
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
 
-	data->cfg = of_device_get_match_data(dev);
+	data->cfg = device_get_match_data(dev);
 	if (!data->cfg)
 		data->cfg = &mcp4018_cfg[i2c_match_id(mcp4018_id, client)->driver_data];
 
@@ -176,7 +172,7 @@ static int mcp4018_probe(struct i2c_client *client)
 static struct i2c_driver mcp4018_driver = {
 	.driver = {
 		.name	= "mcp4018",
-		.of_match_table = of_match_ptr(mcp4018_of_match),
+		.of_match_table = mcp4018_of_match,
 	},
 	.probe_new	= mcp4018_probe,
 	.id_table	= mcp4018_id,
diff --git a/drivers/iio/potentiometer/mcp4131.c b/drivers/iio/potentiometer/mcp4131.c
index 2923ce250fc3..7c8c18ab8764 100644
--- a/drivers/iio/potentiometer/mcp4131.c
+++ b/drivers/iio/potentiometer/mcp4131.c
@@ -37,9 +37,9 @@
 #include <linux/iio/iio.h>
 #include <linux/iio/types.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/mutex.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
+#include <linux/property.h>
 #include <linux/spi/spi.h>
 
 #define MCP4131_WRITE		(0x00 << 2)
@@ -252,7 +252,7 @@ static int mcp4131_probe(struct spi_device *spi)
 	data = iio_priv(indio_dev);
 	spi_set_drvdata(spi, indio_dev);
 	data->spi = spi;
-	data->cfg = of_device_get_match_data(&spi->dev);
+	data->cfg = device_get_match_data(&spi->dev);
 	if (!data->cfg) {
 		devid = spi_get_device_id(spi)->driver_data;
 		data->cfg = &mcp4131_cfg[devid];
@@ -479,7 +479,7 @@ MODULE_DEVICE_TABLE(spi, mcp4131_id);
 static struct spi_driver mcp4131_driver = {
 	.driver = {
 		.name	= "mcp4131",
-		.of_match_table = of_match_ptr(mcp4131_dt_ids),
+		.of_match_table = mcp4131_dt_ids,
 	},
 	.probe		= mcp4131_probe,
 	.id_table	= mcp4131_id,
diff --git a/drivers/iio/potentiometer/mcp4531.c b/drivers/iio/potentiometer/mcp4531.c
index 95efc4b40514..c25f84b4a270 100644
--- a/drivers/iio/potentiometer/mcp4531.c
+++ b/drivers/iio/potentiometer/mcp4531.c
@@ -28,8 +28,8 @@
 #include <linux/module.h>
 #include <linux/i2c.h>
 #include <linux/err.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
+#include <linux/mod_devicetable.h>
+#include <linux/property.h>
 
 #include <linux/iio/iio.h>
 
@@ -275,8 +275,6 @@ static const struct i2c_device_id mcp4531_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, mcp4531_id);
 
-#ifdef CONFIG_OF
-
 #define MCP4531_COMPATIBLE(of_compatible, cfg) {	\
 			.compatible = of_compatible,	\
 			.data = &mcp4531_cfg[cfg],	\
@@ -350,7 +348,6 @@ static const struct of_device_id mcp4531_of_match[] = {
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, mcp4531_of_match);
-#endif
 
 static int mcp4531_probe(struct i2c_client *client)
 {
@@ -371,7 +368,7 @@ static int mcp4531_probe(struct i2c_client *client)
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
 
-	data->cfg = of_device_get_match_data(dev);
+	data->cfg = device_get_match_data(dev);
 	if (!data->cfg)
 		data->cfg = &mcp4531_cfg[i2c_match_id(mcp4531_id, client)->driver_data];
 
@@ -386,7 +383,7 @@ static int mcp4531_probe(struct i2c_client *client)
 static struct i2c_driver mcp4531_driver = {
 	.driver = {
 		.name	= "mcp4531",
-		.of_match_table = of_match_ptr(mcp4531_of_match),
+		.of_match_table = mcp4531_of_match,
 	},
 	.probe_new	= mcp4531_probe,
 	.id_table	= mcp4531_id,
diff --git a/drivers/iio/potentiostat/lmp91000.c b/drivers/iio/potentiostat/lmp91000.c
index 67ae635a05f3..f34ca769dc20 100644
--- a/drivers/iio/potentiostat/lmp91000.c
+++ b/drivers/iio/potentiostat/lmp91000.c
@@ -11,7 +11,7 @@
 #include <linux/module.h>
 #include <linux/i2c.h>
 #include <linux/delay.h>
-#include <linux/of.h>
+#include <linux/mod_devicetable.h>
 #include <linux/regmap.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/buffer.h>
@@ -205,13 +205,12 @@ static const struct iio_info lmp91000_info = {
 static int lmp91000_read_config(struct lmp91000_data *data)
 {
 	struct device *dev = data->dev;
-	struct device_node *np = dev->of_node;
 	unsigned int reg, val;
 	int i, ret;
 
-	ret = of_property_read_u32(np, "ti,tia-gain-ohm", &val);
+	ret = device_property_read_u32(dev, "ti,tia-gain-ohm", &val);
 	if (ret) {
-		if (!of_property_read_bool(np, "ti,external-tia-resistor")) {
+		if (!device_property_read_bool(dev, "ti,external-tia-resistor")) {
 			dev_err(dev, "no ti,tia-gain-ohm defined and external resistor not specified\n");
 			return ret;
 		}
@@ -232,7 +231,7 @@ static int lmp91000_read_config(struct lmp91000_data *data)
 		return ret;
 	}
 
-	ret = of_property_read_u32(np, "ti,rload-ohm", &val);
+	ret = device_property_read_u32(dev, "ti,rload-ohm", &val);
 	if (ret) {
 		val = 100;
 		dev_info(dev, "no ti,rload-ohm defined, default to %d\n", val);
@@ -422,7 +421,7 @@ MODULE_DEVICE_TABLE(i2c, lmp91000_id);
 static struct i2c_driver lmp91000_driver = {
 	.driver = {
 		.name = LMP91000_DRV_NAME,
-		.of_match_table = of_match_ptr(lmp91000_of_match),
+		.of_match_table = lmp91000_of_match,
 	},
 	.probe = lmp91000_probe,
 	.remove = lmp91000_remove,
diff --git a/drivers/iio/pressure/cros_ec_baro.c b/drivers/iio/pressure/cros_ec_baro.c
index f0938b6fbba0..aa043cb9ac42 100644
--- a/drivers/iio/pressure/cros_ec_baro.c
+++ b/drivers/iio/pressure/cros_ec_baro.c
@@ -139,12 +139,11 @@ static int cros_ec_baro_probe(struct platform_device *pdev)
 
 	ret = cros_ec_sensors_core_init(pdev, indio_dev, true,
 					cros_ec_sensors_capture,
-					cros_ec_sensors_push_data);
+					cros_ec_sensors_push_data,
+					true);
 	if (ret)
 		return ret;
 
-	iio_buffer_set_attrs(indio_dev->buffer, cros_ec_sensor_fifo_attributes);
-
 	indio_dev->info = &cros_ec_baro_info;
 	state = iio_priv(indio_dev);
 	state->core.type = state->core.resp->info.type;
diff --git a/drivers/iio/pressure/icp10100.c b/drivers/iio/pressure/icp10100.c
index 90c0df068bbb..48759fc4bf18 100644
--- a/drivers/iio/pressure/icp10100.c
+++ b/drivers/iio/pressure/icp10100.c
@@ -10,6 +10,7 @@
 
 #include <linux/device.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/i2c.h>
 #include <linux/pm_runtime.h>
 #include <linux/crc8.h>
@@ -645,7 +646,7 @@ static struct i2c_driver icp10100_driver = {
 	.driver = {
 		.name = "icp10100",
 		.pm = &icp10100_pm,
-		.of_match_table = of_match_ptr(icp10100_of_match),
+		.of_match_table = icp10100_of_match,
 	},
 	.probe = icp10100_probe,
 	.id_table = icp10100_id,
diff --git a/drivers/iio/pressure/ms5611_i2c.c b/drivers/iio/pressure/ms5611_i2c.c
index 072c106dd66d..7c04f730430c 100644
--- a/drivers/iio/pressure/ms5611_i2c.c
+++ b/drivers/iio/pressure/ms5611_i2c.c
@@ -14,7 +14,7 @@
 #include <linux/delay.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/mod_devicetable.h>
 
 #include <asm/unaligned.h>
 
@@ -113,14 +113,12 @@ static int ms5611_i2c_remove(struct i2c_client *client)
 	return ms5611_remove(i2c_get_clientdata(client));
 }
 
-#if defined(CONFIG_OF)
 static const struct of_device_id ms5611_i2c_matches[] = {
 	{ .compatible = "meas,ms5611" },
 	{ .compatible = "meas,ms5607" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ms5611_i2c_matches);
-#endif
 
 static const struct i2c_device_id ms5611_id[] = {
 	{ "ms5611", MS5611 },
@@ -132,7 +130,7 @@ MODULE_DEVICE_TABLE(i2c, ms5611_id);
 static struct i2c_driver ms5611_driver = {
 	.driver = {
 		.name = "ms5611",
-		.of_match_table = of_match_ptr(ms5611_i2c_matches)
+		.of_match_table = ms5611_i2c_matches,
 	},
 	.id_table = ms5611_id,
 	.probe = ms5611_i2c_probe,
diff --git a/drivers/iio/pressure/ms5611_spi.c b/drivers/iio/pressure/ms5611_spi.c
index 4799aa57135e..45d3a7d5be8e 100644
--- a/drivers/iio/pressure/ms5611_spi.c
+++ b/drivers/iio/pressure/ms5611_spi.c
@@ -9,7 +9,7 @@
 #include <linux/delay.h>
 #include <linux/module.h>
 #include <linux/spi/spi.h>
-#include <linux/of_device.h>
+#include <linux/mod_devicetable.h>
 
 #include <asm/unaligned.h>
 
@@ -115,14 +115,12 @@ static int ms5611_spi_remove(struct spi_device *spi)
 	return ms5611_remove(spi_get_drvdata(spi));
 }
 
-#if defined(CONFIG_OF)
 static const struct of_device_id ms5611_spi_matches[] = {
 	{ .compatible = "meas,ms5611" },
 	{ .compatible = "meas,ms5607" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ms5611_spi_matches);
-#endif
 
 static const struct spi_device_id ms5611_id[] = {
 	{ "ms5611", MS5611 },
@@ -134,7 +132,7 @@ MODULE_DEVICE_TABLE(spi, ms5611_id);
 static struct spi_driver ms5611_driver = {
 	.driver = {
 		.name = "ms5611",
-		.of_match_table = of_match_ptr(ms5611_spi_matches)
+		.of_match_table = ms5611_spi_matches
 	},
 	.id_table = ms5611_id,
 	.probe = ms5611_spi_probe,
diff --git a/drivers/iio/pressure/ms5637.c b/drivers/iio/pressure/ms5637.c
index 05e0ef7260d5..5b59a4137d32 100644
--- a/drivers/iio/pressure/ms5637.c
+++ b/drivers/iio/pressure/ms5637.c
@@ -22,6 +22,7 @@
 #include <linux/kernel.h>
 #include <linux/stat.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/i2c.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
@@ -192,7 +193,7 @@ static struct i2c_driver ms5637_driver = {
 	.id_table = ms5637_id,
 	.driver = {
 		   .name = "ms5637",
-		   .of_match_table = of_match_ptr(ms5637_of_match),
+		   .of_match_table = ms5637_of_match,
 		   },
 };
 
diff --git a/drivers/iio/pressure/zpa2326_i2c.c b/drivers/iio/pressure/zpa2326_i2c.c
index 1a65791ba279..95d9739444c4 100644
--- a/drivers/iio/pressure/zpa2326_i2c.c
+++ b/drivers/iio/pressure/zpa2326_i2c.c
@@ -10,7 +10,7 @@
 #include <linux/module.h>
 #include <linux/regmap.h>
 #include <linux/i2c.h>
-#include <linux/of_device.h>
+#include <linux/mod_devicetable.h>
 #include "zpa2326.h"
 
 /*
@@ -66,18 +66,16 @@ static const struct i2c_device_id zpa2326_i2c_ids[] = {
 };
 MODULE_DEVICE_TABLE(i2c, zpa2326_i2c_ids);
 
-#if defined(CONFIG_OF)
 static const struct of_device_id zpa2326_i2c_matches[] = {
 	{ .compatible = "murata,zpa2326" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, zpa2326_i2c_matches);
-#endif
 
 static struct i2c_driver zpa2326_i2c_driver = {
 	.driver = {
 		.name           = "zpa2326-i2c",
-		.of_match_table = of_match_ptr(zpa2326_i2c_matches),
+		.of_match_table = zpa2326_i2c_matches,
 		.pm             = ZPA2326_PM_OPS,
 	},
 	.probe    = zpa2326_probe_i2c,
diff --git a/drivers/iio/pressure/zpa2326_spi.c b/drivers/iio/pressure/zpa2326_spi.c
index f37a4c738c75..85201a4bae44 100644
--- a/drivers/iio/pressure/zpa2326_spi.c
+++ b/drivers/iio/pressure/zpa2326_spi.c
@@ -10,7 +10,7 @@
 #include <linux/module.h>
 #include <linux/regmap.h>
 #include <linux/spi/spi.h>
-#include <linux/of_device.h>
+#include <linux/mod_devicetable.h>
 #include "zpa2326.h"
 
 /*
@@ -70,18 +70,16 @@ static const struct spi_device_id zpa2326_spi_ids[] = {
 };
 MODULE_DEVICE_TABLE(spi, zpa2326_spi_ids);
 
-#if defined(CONFIG_OF)
 static const struct of_device_id zpa2326_spi_matches[] = {
 	{ .compatible = "murata,zpa2326" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, zpa2326_spi_matches);
-#endif
 
 static struct spi_driver zpa2326_spi_driver = {
 	.driver = {
 		.name           = "zpa2326-spi",
-		.of_match_table = of_match_ptr(zpa2326_spi_matches),
+		.of_match_table = zpa2326_spi_matches,
 		.pm             = ZPA2326_PM_OPS,
 	},
 	.probe    = zpa2326_probe_spi,
diff --git a/drivers/iio/proximity/as3935.c b/drivers/iio/proximity/as3935.c
index c339e7339ec8..b79ada839e01 100644
--- a/drivers/iio/proximity/as3935.c
+++ b/drivers/iio/proximity/as3935.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
@@ -352,19 +353,19 @@ static void as3935_stop_work(void *data)
 
 static int as3935_probe(struct spi_device *spi)
 {
+	struct device *dev = &spi->dev;
 	struct iio_dev *indio_dev;
 	struct iio_trigger *trig;
 	struct as3935_state *st;
-	struct device_node *np = spi->dev.of_node;
 	int ret;
 
 	/* Be sure lightning event interrupt is specified */
 	if (!spi->irq) {
-		dev_err(&spi->dev, "unable to get event interrupt\n");
+		dev_err(dev, "unable to get event interrupt\n");
 		return -EINVAL;
 	}
 
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	indio_dev = devm_iio_device_alloc(dev, sizeof(*st));
 	if (!indio_dev)
 		return -ENOMEM;
 
@@ -374,27 +375,24 @@ static int as3935_probe(struct spi_device *spi)
 	spi_set_drvdata(spi, indio_dev);
 	mutex_init(&st->lock);
 
-	ret = of_property_read_u32(np,
+	ret = device_property_read_u32(dev,
 			"ams,tuning-capacitor-pf", &st->tune_cap);
 	if (ret) {
 		st->tune_cap = 0;
-		dev_warn(&spi->dev,
-			"no tuning-capacitor-pf set, defaulting to %d",
+		dev_warn(dev, "no tuning-capacitor-pf set, defaulting to %d",
 			st->tune_cap);
 	}
 
 	if (st->tune_cap > MAX_PF_CAP) {
-		dev_err(&spi->dev,
-			"wrong tuning-capacitor-pf setting of %d\n",
+		dev_err(dev, "wrong tuning-capacitor-pf setting of %d\n",
 			st->tune_cap);
 		return -EINVAL;
 	}
 
-	ret = of_property_read_u32(np,
+	ret = device_property_read_u32(dev,
 			"ams,nflwdth", &st->nflwdth_reg);
 	if (!ret && st->nflwdth_reg > AS3935_NFLWDTH_MASK) {
-		dev_err(&spi->dev,
-			"invalid nflwdth setting of %d\n",
+		dev_err(dev, "invalid nflwdth setting of %d\n",
 			st->nflwdth_reg);
 		return -EINVAL;
 	}
@@ -405,7 +403,7 @@ static int as3935_probe(struct spi_device *spi)
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &as3935_info;
 
-	trig = devm_iio_trigger_alloc(&spi->dev, "%s-dev%d",
+	trig = devm_iio_trigger_alloc(dev, "%s-dev%d",
 				      indio_dev->name, indio_dev->id);
 
 	if (!trig)
@@ -417,42 +415,42 @@ static int as3935_probe(struct spi_device *spi)
 	iio_trigger_set_drvdata(trig, indio_dev);
 	trig->ops = &iio_interrupt_trigger_ops;
 
-	ret = devm_iio_trigger_register(&spi->dev, trig);
+	ret = devm_iio_trigger_register(dev, trig);
 	if (ret) {
-		dev_err(&spi->dev, "failed to register trigger\n");
+		dev_err(dev, "failed to register trigger\n");
 		return ret;
 	}
 
-	ret = devm_iio_triggered_buffer_setup(&spi->dev, indio_dev,
+	ret = devm_iio_triggered_buffer_setup(dev, indio_dev,
 					      iio_pollfunc_store_time,
 					      as3935_trigger_handler, NULL);
 
 	if (ret) {
-		dev_err(&spi->dev, "cannot setup iio trigger\n");
+		dev_err(dev, "cannot setup iio trigger\n");
 		return ret;
 	}
 
 	calibrate_as3935(st);
 
 	INIT_DELAYED_WORK(&st->work, as3935_event_work);
-	ret = devm_add_action(&spi->dev, as3935_stop_work, indio_dev);
+	ret = devm_add_action(dev, as3935_stop_work, indio_dev);
 	if (ret)
 		return ret;
 
-	ret = devm_request_irq(&spi->dev, spi->irq,
+	ret = devm_request_irq(dev, spi->irq,
 				&as3935_interrupt_handler,
 				IRQF_TRIGGER_RISING,
-				dev_name(&spi->dev),
+				dev_name(dev),
 				indio_dev);
 
 	if (ret) {
-		dev_err(&spi->dev, "unable to request irq\n");
+		dev_err(dev, "unable to request irq\n");
 		return ret;
 	}
 
-	ret = devm_iio_device_register(&spi->dev, indio_dev);
+	ret = devm_iio_device_register(dev, indio_dev);
 	if (ret < 0) {
-		dev_err(&spi->dev, "unable to register device\n");
+		dev_err(dev, "unable to register device\n");
 		return ret;
 	}
 	return 0;
@@ -473,7 +471,7 @@ MODULE_DEVICE_TABLE(spi, as3935_id);
 static struct spi_driver as3935_driver = {
 	.driver = {
 		.name	= "as3935",
-		.of_match_table = of_match_ptr(as3935_of_match),
+		.of_match_table = as3935_of_match,
 		.pm	= AS3935_PM_OPS,
 	},
 	.probe		= as3935_probe,
diff --git a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
index a8e716dbd24e..c685f10b5ae4 100644
--- a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
+++ b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
@@ -13,6 +13,7 @@
 #include <linux/i2c.h>
 #include <linux/delay.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/pm_runtime.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
@@ -360,7 +361,7 @@ static const struct dev_pm_ops lidar_pm_ops = {
 static struct i2c_driver lidar_driver = {
 	.driver = {
 		.name	= LIDAR_DRV_NAME,
-		.of_match_table	= of_match_ptr(lidar_dt_ids),
+		.of_match_table	= lidar_dt_ids,
 		.pm	= &lidar_pm_ops,
 	},
 	.probe		= lidar_probe,
diff --git a/drivers/iio/proximity/sx9310.c b/drivers/iio/proximity/sx9310.c
index dc2e11b43431..6d3f4ab8c6b2 100644
--- a/drivers/iio/proximity/sx9310.c
+++ b/drivers/iio/proximity/sx9310.c
@@ -6,19 +6,21 @@
  * Based on SX9500 driver and Semtech driver using the input framework
  * <https://my.syncplicity.com/share/teouwsim8niiaud/
  *          linux-driver-SX9310_NoSmartHSensing>.
- * Reworked April 2019 by Evan Green <evgreen@chromium.org>
- * and January 2020 by Daniel Campello <campello@chromium.org>
+ * Reworked in April 2019 by Evan Green <evgreen@chromium.org>
+ * and in January 2020 by Daniel Campello <campello@chromium.org>.
  */
 
 #include <linux/acpi.h>
+#include <linux/bitfield.h>
 #include <linux/delay.h>
 #include <linux/i2c.h>
 #include <linux/irq.h>
 #include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
-#include <linux/of.h>
 #include <linux/pm.h>
 #include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 
 #include <linux/iio/buffer.h>
@@ -33,45 +35,44 @@
 #define SX9310_REG_IRQ_SRC				0x00
 #define SX9310_REG_STAT0				0x01
 #define SX9310_REG_STAT1				0x02
+#define SX9310_REG_STAT1_COMPSTAT_MASK			GENMASK(3, 0)
 #define SX9310_REG_IRQ_MSK				0x03
 #define   SX9310_CONVDONE_IRQ				BIT(3)
 #define   SX9310_FAR_IRQ				BIT(5)
 #define   SX9310_CLOSE_IRQ				BIT(6)
-#define   SX9310_EVENT_IRQ				(SX9310_FAR_IRQ | \
-							 SX9310_CLOSE_IRQ)
 #define SX9310_REG_IRQ_FUNC				0x04
 
 #define SX9310_REG_PROX_CTRL0				0x10
-#define   SX9310_REG_PROX_CTRL0_PROXSTAT2		0x10
-#define   SX9310_REG_PROX_CTRL0_EN_MASK			0x0F
+#define   SX9310_REG_PROX_CTRL0_SENSOREN_MASK		GENMASK(3, 0)
+#define   SX9310_REG_PROX_CTRL0_SCANPERIOD_MASK		GENMASK(7, 4)
+#define   SX9310_REG_PROX_CTRL0_SCANPERIOD_15MS		0x01
 #define SX9310_REG_PROX_CTRL1				0x11
 #define SX9310_REG_PROX_CTRL2				0x12
-#define   SX9310_REG_PROX_CTRL2_COMBMODE_ALL		0x80
-#define   SX9310_REG_PROX_CTRL2_SHIELDEN_DYNAMIC	0x04
+#define   SX9310_REG_PROX_CTRL2_COMBMODE_CS1_CS2	(0x02 << 6)
+#define   SX9310_REG_PROX_CTRL2_SHIELDEN_DYNAMIC	(0x01 << 2)
 #define SX9310_REG_PROX_CTRL3				0x13
-#define   SX9310_REG_PROX_CTRL3_GAIN0_X8		0x0c
+#define   SX9310_REG_PROX_CTRL3_GAIN0_X8		(0x03 << 2)
 #define   SX9310_REG_PROX_CTRL3_GAIN12_X4		0x02
 #define SX9310_REG_PROX_CTRL4				0x14
 #define   SX9310_REG_PROX_CTRL4_RESOLUTION_FINEST	0x07
 #define SX9310_REG_PROX_CTRL5				0x15
-#define   SX9310_REG_PROX_CTRL5_RANGE_SMALL		0xc0
-#define   SX9310_REG_PROX_CTRL5_STARTUPSENS_CS1		0x04
+#define   SX9310_REG_PROX_CTRL5_RANGE_SMALL		(0x03 << 6)
+#define   SX9310_REG_PROX_CTRL5_STARTUPSENS_CS1		(0x01 << 2)
 #define   SX9310_REG_PROX_CTRL5_RAWFILT_1P25		0x02
 #define SX9310_REG_PROX_CTRL6				0x16
-#define   SX9310_REG_PROX_CTRL6_COMP_COMMON		0x20
+#define   SX9310_REG_PROX_CTRL6_AVGTHRESH_DEFAULT	0x20
 #define SX9310_REG_PROX_CTRL7				0x17
-#define   SX9310_REG_PROX_CTRL7_AVGNEGFILT_2		0x08
+#define   SX9310_REG_PROX_CTRL7_AVGNEGFILT_2		(0x01 << 3)
 #define   SX9310_REG_PROX_CTRL7_AVGPOSFILT_512		0x05
 #define SX9310_REG_PROX_CTRL8				0x18
 #define SX9310_REG_PROX_CTRL9				0x19
-#define   SX9310_REG_PROX_CTRL8_9_PTHRESH12_28		0x40
-#define   SX9310_REG_PROX_CTRL8_9_PTHRESH_96		0x88
+#define   SX9310_REG_PROX_CTRL8_9_PTHRESH_28		(0x08 << 3)
+#define   SX9310_REG_PROX_CTRL8_9_PTHRESH_96		(0x11 << 3)
 #define   SX9310_REG_PROX_CTRL8_9_BODYTHRESH_900	0x03
 #define   SX9310_REG_PROX_CTRL8_9_BODYTHRESH_1500	0x05
 #define SX9310_REG_PROX_CTRL10				0x1a
-#define   SX9310_REG_PROX_CTRL10_HYST_6PCT		0x10
-#define   SX9310_REG_PROX_CTRL10_CLOSE_DEBOUNCE_8	0x12
-#define   SX9310_REG_PROX_CTRL10_FAR_DEBOUNCE_8		0x03
+#define   SX9310_REG_PROX_CTRL10_HYST_6PCT		(0x01 << 4)
+#define   SX9310_REG_PROX_CTRL10_FAR_DEBOUNCE_2		0x01
 #define SX9310_REG_PROX_CTRL11				0x1b
 #define SX9310_REG_PROX_CTRL12				0x1c
 #define SX9310_REG_PROX_CTRL13				0x1d
@@ -82,8 +83,8 @@
 #define SX9310_REG_PROX_CTRL18				0x22
 #define SX9310_REG_PROX_CTRL19				0x23
 #define SX9310_REG_SAR_CTRL0				0x2a
-#define   SX9310_REG_SAR_CTRL0_SARDEB_4_SAMPLES		0x40
-#define   SX9310_REG_SAR_CTRL0_SARHYST_8		0x10
+#define   SX9310_REG_SAR_CTRL0_SARDEB_4_SAMPLES		(0x02 << 5)
+#define   SX9310_REG_SAR_CTRL0_SARHYST_8		(0x02 << 3)
 #define SX9310_REG_SAR_CTRL1				0x2b
 /* Each increment of the slope register is 0.0078125. */
 #define   SX9310_REG_SAR_CTRL1_SLOPE(_hnslope)		(_hnslope / 78125)
@@ -91,39 +92,28 @@
 #define   SX9310_REG_SAR_CTRL2_SAROFFSET_DEFAULT	0x3c
 
 #define SX9310_REG_SENSOR_SEL				0x30
-
 #define SX9310_REG_USE_MSB				0x31
 #define SX9310_REG_USE_LSB				0x32
-
 #define SX9310_REG_AVG_MSB				0x33
 #define SX9310_REG_AVG_LSB				0x34
-
 #define SX9310_REG_DIFF_MSB				0x35
 #define SX9310_REG_DIFF_LSB				0x36
-
 #define SX9310_REG_OFFSET_MSB				0x37
 #define SX9310_REG_OFFSET_LSB				0x38
-
 #define SX9310_REG_SAR_MSB				0x39
 #define SX9310_REG_SAR_LSB				0x3a
-
-#define SX9310_REG_I2CADDR				0x40
+#define SX9310_REG_I2C_ADDR				0x40
 #define SX9310_REG_PAUSE				0x41
 #define SX9310_REG_WHOAMI				0x42
 #define   SX9310_WHOAMI_VALUE				0x01
 #define   SX9311_WHOAMI_VALUE				0x02
-
 #define SX9310_REG_RESET				0x7f
 #define   SX9310_SOFT_RESET				0xde
 
-#define SX9310_SCAN_PERIOD_MASK				GENMASK(7, 4)
-#define SX9310_SCAN_PERIOD_SHIFT			4
-
-#define SX9310_COMPSTAT_MASK				GENMASK(3, 0)
 
 /* 4 hardware channels, as defined in STAT0: COMB, CS2, CS1 and CS0. */
 #define SX9310_NUM_CHANNELS				4
-#define SX9310_CHAN_ENABLED_MASK			GENMASK(3, 0)
+static_assert(SX9310_NUM_CHANNELS < BITS_PER_LONG);
 
 struct sx9310_data {
 	/* Serialize access to registers and channel configuration */
@@ -131,20 +121,24 @@ struct sx9310_data {
 	struct i2c_client *client;
 	struct iio_trigger *trig;
 	struct regmap *regmap;
+	struct regulator_bulk_data supplies[2];
 	/*
 	 * Last reading of the proximity status for each channel.
 	 * We only send an event to user space when this changes.
 	 */
-	bool prox_stat[SX9310_NUM_CHANNELS];
+	unsigned long chan_prox_stat;
 	bool trigger_enabled;
-	__be16 buffer[SX9310_NUM_CHANNELS +
-		      4]; /* 64-bit data + 64-bit timestamp */
+	/* Ensure correct alignment of timestamp when present. */
+	struct {
+		__be16 channels[SX9310_NUM_CHANNELS];
+		s64 ts __aligned(8);
+	} buffer;
 	/* Remember enabled channels and sample rate during suspend. */
 	unsigned int suspend_ctrl0;
 	struct completion completion;
-	unsigned int chan_read, chan_event;
-	int channel_users[SX9310_NUM_CHANNELS];
-	int whoami;
+	unsigned long chan_read;
+	unsigned long chan_event;
+	unsigned int whoami;
 };
 
 static const struct iio_event_spec sx9310_events[] = {
@@ -251,7 +245,7 @@ static const struct regmap_range sx9310_readable_reg_ranges[] = {
 	regmap_reg_range(SX9310_REG_PROX_CTRL0, SX9310_REG_PROX_CTRL19),
 	regmap_reg_range(SX9310_REG_SAR_CTRL0, SX9310_REG_SAR_CTRL2),
 	regmap_reg_range(SX9310_REG_SENSOR_SEL, SX9310_REG_SAR_LSB),
-	regmap_reg_range(SX9310_REG_I2CADDR, SX9310_REG_WHOAMI),
+	regmap_reg_range(SX9310_REG_I2C_ADDR, SX9310_REG_WHOAMI),
 	regmap_reg_range(SX9310_REG_RESET, SX9310_REG_RESET),
 };
 
@@ -285,15 +279,16 @@ static const struct regmap_config sx9310_regmap_config = {
 };
 
 static int sx9310_update_chan_en(struct sx9310_data *data,
-				 unsigned int chan_read,
-				 unsigned int chan_event)
+				 unsigned long chan_read,
+				 unsigned long chan_event)
 {
 	int ret;
+	unsigned long channels = chan_read | chan_event;
 
-	if ((data->chan_read | data->chan_event) != (chan_read | chan_event)) {
+	if ((data->chan_read | data->chan_event) != channels) {
 		ret = regmap_update_bits(data->regmap, SX9310_REG_PROX_CTRL0,
-					 SX9310_CHAN_ENABLED_MASK,
-					 chan_read | chan_event);
+					 SX9310_REG_PROX_CTRL0_SENSOREN_MASK,
+					 channels);
 		if (ret)
 			return ret;
 	}
@@ -328,11 +323,15 @@ static int sx9310_put_event_channel(struct sx9310_data *data, int channel)
 
 static int sx9310_enable_irq(struct sx9310_data *data, unsigned int irq)
 {
+	if (!data->client->irq)
+		return 0;
 	return regmap_update_bits(data->regmap, SX9310_REG_IRQ_MSK, irq, irq);
 }
 
 static int sx9310_disable_irq(struct sx9310_data *data, unsigned int irq)
 {
+	if (!data->client->irq)
+		return 0;
 	return regmap_update_bits(data->regmap, SX9310_REG_IRQ_MSK, irq, 0);
 }
 
@@ -342,10 +341,10 @@ static int sx9310_read_prox_data(struct sx9310_data *data,
 	int ret;
 
 	ret = regmap_write(data->regmap, SX9310_REG_SENSOR_SEL, chan->channel);
-	if (ret < 0)
+	if (ret)
 		return ret;
 
-	return regmap_bulk_read(data->regmap, chan->address, val, 2);
+	return regmap_bulk_read(data->regmap, chan->address, val, sizeof(*val));
 }
 
 /*
@@ -358,10 +357,10 @@ static int sx9310_wait_for_sample(struct sx9310_data *data)
 	unsigned int val;
 
 	ret = regmap_read(data->regmap, SX9310_REG_PROX_CTRL0, &val);
-	if (ret < 0)
+	if (ret)
 		return ret;
 
-	val = (val & SX9310_SCAN_PERIOD_MASK) >> SX9310_SCAN_PERIOD_SHIFT;
+	val = FIELD_GET(SX9310_REG_PROX_CTRL0_SCANPERIOD_MASK, val);
 
 	msleep(sx9310_scan_period_table[val]);
 
@@ -371,22 +370,22 @@ static int sx9310_wait_for_sample(struct sx9310_data *data)
 static int sx9310_read_proximity(struct sx9310_data *data,
 				 const struct iio_chan_spec *chan, int *val)
 {
-	int ret = 0;
+	int ret;
 	__be16 rawval;
 
 	mutex_lock(&data->mutex);
 
 	ret = sx9310_get_read_channel(data, chan->channel);
-	if (ret < 0)
+	if (ret)
 		goto out;
 
 	ret = sx9310_enable_irq(data, SX9310_CONVDONE_IRQ);
-	if (ret < 0)
+	if (ret)
 		goto out_put_channel;
 
 	mutex_unlock(&data->mutex);
 
-	if (data->client->irq > 0) {
+	if (data->client->irq) {
 		ret = wait_for_completion_interruptible(&data->completion);
 		reinit_completion(&data->completion);
 	} else {
@@ -395,22 +394,22 @@ static int sx9310_read_proximity(struct sx9310_data *data,
 
 	mutex_lock(&data->mutex);
 
-	if (ret < 0)
+	if (ret)
 		goto out_disable_irq;
 
 	ret = sx9310_read_prox_data(data, chan, &rawval);
-	if (ret < 0)
+	if (ret)
 		goto out_disable_irq;
 
 	*val = sign_extend32(be16_to_cpu(rawval),
-			     (chan->address == SX9310_REG_DIFF_MSB ? 11 : 15));
+			     chan->address == SX9310_REG_DIFF_MSB ? 11 : 15);
 
 	ret = sx9310_disable_irq(data, SX9310_CONVDONE_IRQ);
-	if (ret < 0)
+	if (ret)
 		goto out_put_channel;
 
 	ret = sx9310_put_read_channel(data, chan->channel);
-	if (ret < 0)
+	if (ret)
 		goto out;
 
 	mutex_unlock(&data->mutex);
@@ -430,12 +429,13 @@ out:
 static int sx9310_read_samp_freq(struct sx9310_data *data, int *val, int *val2)
 {
 	unsigned int regval;
-	int ret = regmap_read(data->regmap, SX9310_REG_PROX_CTRL0, &regval);
+	int ret;
 
-	if (ret < 0)
+	ret = regmap_read(data->regmap, SX9310_REG_PROX_CTRL0, &regval);
+	if (ret)
 		return ret;
 
-	regval = (regval & SX9310_SCAN_PERIOD_MASK) >> SX9310_SCAN_PERIOD_SHIFT;
+	regval = FIELD_GET(SX9310_REG_PROX_CTRL0_SCANPERIOD_MASK, regval);
 	*val = sx9310_samp_freq_table[regval].val;
 	*val2 = sx9310_samp_freq_table[regval].val2;
 
@@ -482,9 +482,10 @@ static int sx9310_set_samp_freq(struct sx9310_data *data, int val, int val2)
 
 	mutex_lock(&data->mutex);
 
-	ret = regmap_update_bits(data->regmap, SX9310_REG_PROX_CTRL0,
-				 SX9310_SCAN_PERIOD_MASK,
-				 i << SX9310_SCAN_PERIOD_SHIFT);
+	ret = regmap_update_bits(
+		data->regmap, SX9310_REG_PROX_CTRL0,
+		SX9310_REG_PROX_CTRL0_SCANPERIOD_MASK,
+		FIELD_PREP(SX9310_REG_PROX_CTRL0_SCANPERIOD_MASK, i));
 
 	mutex_unlock(&data->mutex);
 
@@ -515,10 +516,9 @@ static irqreturn_t sx9310_irq_handler(int irq, void *private)
 		iio_trigger_poll(data->trig);
 
 	/*
-	 * Even if no event is enabled, we need to wake the thread to
-	 * clear the interrupt state by reading SX9310_REG_IRQ_SRC.  It
-	 * is not possible to do that here because regmap_read takes a
-	 * mutex.
+	 * Even if no event is enabled, we need to wake the thread to clear the
+	 * interrupt state by reading SX9310_REG_IRQ_SRC.
+	 * It is not possible to do that here because regmap_read takes a mutex.
 	 */
 	return IRQ_WAKE_THREAD;
 }
@@ -529,32 +529,32 @@ static void sx9310_push_events(struct iio_dev *indio_dev)
 	unsigned int val, chan;
 	struct sx9310_data *data = iio_priv(indio_dev);
 	s64 timestamp = iio_get_time_ns(indio_dev);
+	unsigned long prox_changed;
 
 	/* Read proximity state on all channels */
 	ret = regmap_read(data->regmap, SX9310_REG_STAT0, &val);
-	if (ret < 0) {
+	if (ret) {
 		dev_err(&data->client->dev, "i2c transfer error in irq\n");
 		return;
 	}
 
-	for (chan = 0; chan < SX9310_NUM_CHANNELS; chan++) {
+	/*
+	 * Only iterate over channels with changes on proximity status that have
+	 * events enabled.
+	 */
+	prox_changed = (data->chan_prox_stat ^ val) & data->chan_event;
+
+	for_each_set_bit(chan, &prox_changed, SX9310_NUM_CHANNELS) {
 		int dir;
 		u64 ev;
-		bool new_prox = val & BIT(chan);
 
-		if (!(data->chan_event & BIT(chan)))
-			continue;
-		if (new_prox == data->prox_stat[chan])
-			/* No change on this channel. */
-			continue;
-
-		dir = new_prox ? IIO_EV_DIR_FALLING : IIO_EV_DIR_RISING;
+		dir = (val & BIT(chan)) ? IIO_EV_DIR_FALLING : IIO_EV_DIR_RISING;
 		ev = IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, chan,
 					  IIO_EV_TYPE_THRESH, dir);
 
 		iio_push_event(indio_dev, ev, timestamp);
-		data->prox_stat[chan] = new_prox;
 	}
+	data->chan_prox_stat = val;
 }
 
 static irqreturn_t sx9310_irq_thread_handler(int irq, void *private)
@@ -567,12 +567,12 @@ static irqreturn_t sx9310_irq_thread_handler(int irq, void *private)
 	mutex_lock(&data->mutex);
 
 	ret = regmap_read(data->regmap, SX9310_REG_IRQ_SRC, &val);
-	if (ret < 0) {
+	if (ret) {
 		dev_err(&data->client->dev, "i2c transfer error in irq\n");
 		goto out;
 	}
 
-	if (val & SX9310_EVENT_IRQ)
+	if (val & (SX9310_FAR_IRQ | SX9310_CLOSE_IRQ))
 		sx9310_push_events(indio_dev);
 
 	if (val & SX9310_CONVDONE_IRQ)
@@ -600,6 +600,7 @@ static int sx9310_write_event_config(struct iio_dev *indio_dev,
 				     enum iio_event_direction dir, int state)
 {
 	struct sx9310_data *data = iio_priv(indio_dev);
+	unsigned int eventirq = SX9310_FAR_IRQ | SX9310_CLOSE_IRQ;
 	int ret;
 
 	/* If the state hasn't changed, there's nothing to do. */
@@ -609,20 +610,20 @@ static int sx9310_write_event_config(struct iio_dev *indio_dev,
 	mutex_lock(&data->mutex);
 	if (state) {
 		ret = sx9310_get_event_channel(data, chan->channel);
-		if (ret < 0)
+		if (ret)
 			goto out_unlock;
 		if (!(data->chan_event & ~BIT(chan->channel))) {
-			ret = sx9310_enable_irq(data, SX9310_EVENT_IRQ);
-			if (ret < 0)
+			ret = sx9310_enable_irq(data, eventirq);
+			if (ret)
 				sx9310_put_event_channel(data, chan->channel);
 		}
 	} else {
 		ret = sx9310_put_event_channel(data, chan->channel);
-		if (ret < 0)
+		if (ret)
 			goto out_unlock;
 		if (!data->chan_event) {
-			ret = sx9310_disable_irq(data, SX9310_EVENT_IRQ);
-			if (ret < 0)
+			ret = sx9310_disable_irq(data, eventirq);
+			if (ret)
 				sx9310_get_event_channel(data, chan->channel);
 		}
 	}
@@ -634,7 +635,7 @@ out_unlock:
 
 static struct attribute *sx9310_attributes[] = {
 	&iio_dev_attr_sampling_frequency_available.dev_attr.attr,
-	NULL,
+	NULL
 };
 
 static const struct attribute_group sx9310_attribute_group = {
@@ -661,7 +662,7 @@ static int sx9310_set_trigger_state(struct iio_trigger *trig, bool state)
 		ret = sx9310_enable_irq(data, SX9310_CONVDONE_IRQ);
 	else if (!data->chan_read)
 		ret = sx9310_disable_irq(data, SX9310_CONVDONE_IRQ);
-	if (ret < 0)
+	if (ret)
 		goto out;
 
 	data->trigger_enabled = state;
@@ -690,13 +691,13 @@ static irqreturn_t sx9310_trigger_handler(int irq, void *private)
 			 indio_dev->masklength) {
 		ret = sx9310_read_prox_data(data, &indio_dev->channels[bit],
 					    &val);
-		if (ret < 0)
+		if (ret)
 			goto out;
 
-		data->buffer[i++] = val;
+		data->buffer.channels[i++] = val;
 	}
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->buffer,
 					   pf->timestamp);
 
 out:
@@ -710,13 +711,13 @@ out:
 static int sx9310_buffer_preenable(struct iio_dev *indio_dev)
 {
 	struct sx9310_data *data = iio_priv(indio_dev);
-	unsigned int channels = 0;
+	unsigned long channels = 0;
 	int bit, ret;
 
 	mutex_lock(&data->mutex);
 	for_each_set_bit(bit, indio_dev->active_scan_mask,
 			 indio_dev->masklength)
-		channels |= BIT(indio_dev->channels[bit].channel);
+		__set_bit(indio_dev->channels[bit].channel, &channels);
 
 	ret = sx9310_update_chan_en(data, channels, data->chan_event);
 	mutex_unlock(&data->mutex);
@@ -744,89 +745,77 @@ struct sx9310_reg_default {
 	u8 def;
 };
 
-#define SX_INIT(_reg, _def)			\
-	{					\
-		.reg = SX9310_REG_##_reg,	\
-		.def = _def,			\
-	}
-
 static const struct sx9310_reg_default sx9310_default_regs[] = {
-	SX_INIT(IRQ_MSK, 0x00),
-	SX_INIT(IRQ_FUNC, 0x00),
+	{ SX9310_REG_IRQ_MSK, 0x00 },
+	{ SX9310_REG_IRQ_FUNC, 0x00 },
 	/*
 	 * The lower 4 bits should not be set as it enable sensors measurements.
 	 * Turning the detection on before the configuration values are set to
 	 * good values can cause the device to return erroneous readings.
 	 */
-	SX_INIT(PROX_CTRL0, SX9310_REG_PROX_CTRL0_PROXSTAT2),
-	SX_INIT(PROX_CTRL1, 0x00),
-	SX_INIT(PROX_CTRL2, SX9310_REG_PROX_CTRL2_COMBMODE_ALL |
-			    SX9310_REG_PROX_CTRL2_SHIELDEN_DYNAMIC),
-	SX_INIT(PROX_CTRL3, SX9310_REG_PROX_CTRL3_GAIN0_X8 |
-			    SX9310_REG_PROX_CTRL3_GAIN12_X4),
-	SX_INIT(PROX_CTRL4, SX9310_REG_PROX_CTRL4_RESOLUTION_FINEST),
-	SX_INIT(PROX_CTRL5, SX9310_REG_PROX_CTRL5_RANGE_SMALL |
-			    SX9310_REG_PROX_CTRL5_STARTUPSENS_CS1 |
-			    SX9310_REG_PROX_CTRL5_RAWFILT_1P25),
-	SX_INIT(PROX_CTRL6, SX9310_REG_PROX_CTRL6_COMP_COMMON),
-	SX_INIT(PROX_CTRL7, SX9310_REG_PROX_CTRL7_AVGNEGFILT_2 |
-			    SX9310_REG_PROX_CTRL7_AVGPOSFILT_512),
-	SX_INIT(PROX_CTRL8, SX9310_REG_PROX_CTRL8_9_PTHRESH_96 |
-			    SX9310_REG_PROX_CTRL8_9_BODYTHRESH_1500),
-	SX_INIT(PROX_CTRL9, SX9310_REG_PROX_CTRL8_9_PTHRESH12_28 |
-			    SX9310_REG_PROX_CTRL8_9_BODYTHRESH_900),
-	SX_INIT(PROX_CTRL10, SX9310_REG_PROX_CTRL10_HYST_6PCT |
-			     SX9310_REG_PROX_CTRL10_CLOSE_DEBOUNCE_8 |
-			     SX9310_REG_PROX_CTRL10_FAR_DEBOUNCE_8),
-	SX_INIT(PROX_CTRL11, 0x00),
-	SX_INIT(PROX_CTRL12, 0x00),
-	SX_INIT(PROX_CTRL13, 0x00),
-	SX_INIT(PROX_CTRL14, 0x00),
-	SX_INIT(PROX_CTRL15, 0x00),
-	SX_INIT(PROX_CTRL16, 0x00),
-	SX_INIT(PROX_CTRL17, 0x00),
-	SX_INIT(PROX_CTRL18, 0x00),
-	SX_INIT(PROX_CTRL19, 0x00),
-	SX_INIT(SAR_CTRL0, SX9310_REG_SAR_CTRL0_SARDEB_4_SAMPLES |
-			   SX9310_REG_SAR_CTRL0_SARHYST_8),
-	SX_INIT(SAR_CTRL1, SX9310_REG_SAR_CTRL1_SLOPE(10781250)),
-	SX_INIT(SAR_CTRL2, SX9310_REG_SAR_CTRL2_SAROFFSET_DEFAULT),
+	{ SX9310_REG_PROX_CTRL0, SX9310_REG_PROX_CTRL0_SCANPERIOD_15MS },
+	{ SX9310_REG_PROX_CTRL1, 0x00 },
+	{ SX9310_REG_PROX_CTRL2, SX9310_REG_PROX_CTRL2_COMBMODE_CS1_CS2 |
+				 SX9310_REG_PROX_CTRL2_SHIELDEN_DYNAMIC },
+	{ SX9310_REG_PROX_CTRL3, SX9310_REG_PROX_CTRL3_GAIN0_X8 |
+				 SX9310_REG_PROX_CTRL3_GAIN12_X4 },
+	{ SX9310_REG_PROX_CTRL4, SX9310_REG_PROX_CTRL4_RESOLUTION_FINEST },
+	{ SX9310_REG_PROX_CTRL5, SX9310_REG_PROX_CTRL5_RANGE_SMALL |
+				 SX9310_REG_PROX_CTRL5_STARTUPSENS_CS1 |
+				 SX9310_REG_PROX_CTRL5_RAWFILT_1P25 },
+	{ SX9310_REG_PROX_CTRL6, SX9310_REG_PROX_CTRL6_AVGTHRESH_DEFAULT },
+	{ SX9310_REG_PROX_CTRL7, SX9310_REG_PROX_CTRL7_AVGNEGFILT_2 |
+				 SX9310_REG_PROX_CTRL7_AVGPOSFILT_512 },
+	{ SX9310_REG_PROX_CTRL8, SX9310_REG_PROX_CTRL8_9_PTHRESH_96 |
+				 SX9310_REG_PROX_CTRL8_9_BODYTHRESH_1500 },
+	{ SX9310_REG_PROX_CTRL9, SX9310_REG_PROX_CTRL8_9_PTHRESH_28 |
+				 SX9310_REG_PROX_CTRL8_9_BODYTHRESH_900 },
+	{ SX9310_REG_PROX_CTRL10, SX9310_REG_PROX_CTRL10_HYST_6PCT |
+				  SX9310_REG_PROX_CTRL10_FAR_DEBOUNCE_2 },
+	{ SX9310_REG_PROX_CTRL11, 0x00 },
+	{ SX9310_REG_PROX_CTRL12, 0x00 },
+	{ SX9310_REG_PROX_CTRL13, 0x00 },
+	{ SX9310_REG_PROX_CTRL14, 0x00 },
+	{ SX9310_REG_PROX_CTRL15, 0x00 },
+	{ SX9310_REG_PROX_CTRL16, 0x00 },
+	{ SX9310_REG_PROX_CTRL17, 0x00 },
+	{ SX9310_REG_PROX_CTRL18, 0x00 },
+	{ SX9310_REG_PROX_CTRL19, 0x00 },
+	{ SX9310_REG_SAR_CTRL0, SX9310_REG_SAR_CTRL0_SARDEB_4_SAMPLES |
+				SX9310_REG_SAR_CTRL0_SARHYST_8 },
+	{ SX9310_REG_SAR_CTRL1, SX9310_REG_SAR_CTRL1_SLOPE(10781250) },
+	{ SX9310_REG_SAR_CTRL2, SX9310_REG_SAR_CTRL2_SAROFFSET_DEFAULT },
 };
 
 /* Activate all channels and perform an initial compensation. */
 static int sx9310_init_compensation(struct iio_dev *indio_dev)
 {
 	struct sx9310_data *data = iio_priv(indio_dev);
-	int i, ret;
+	int ret;
 	unsigned int val;
 	unsigned int ctrl0;
 
 	ret = regmap_read(data->regmap, SX9310_REG_PROX_CTRL0, &ctrl0);
-	if (ret < 0)
+	if (ret)
 		return ret;
 
 	/* run the compensation phase on all channels */
 	ret = regmap_write(data->regmap, SX9310_REG_PROX_CTRL0,
-			   ctrl0 | SX9310_REG_PROX_CTRL0_EN_MASK);
-	if (ret < 0)
+			   ctrl0 | SX9310_REG_PROX_CTRL0_SENSOREN_MASK);
+	if (ret)
 		return ret;
 
-	for (i = 100; i >= 0; i--) {
-		msleep(20);
-		ret = regmap_read(data->regmap, SX9310_REG_STAT1, &val);
-		if (ret < 0)
-			goto out;
-		if (!(val & SX9310_COMPSTAT_MASK))
-			break;
-	}
-
-	if (i < 0) {
-		dev_err(&data->client->dev,
-			"initial compensation timed out: 0x%02x", val);
-		ret = -ETIMEDOUT;
+	ret = regmap_read_poll_timeout(data->regmap, SX9310_REG_STAT1, val,
+				       !(val & SX9310_REG_STAT1_COMPSTAT_MASK),
+				       20000, 2000000);
+	if (ret) {
+		if (ret == -ETIMEDOUT)
+			dev_err(&data->client->dev,
+				"initial compensation timed out: 0x%02x\n",
+				val);
+		return ret;
 	}
 
-out:
 	regmap_write(data->regmap, SX9310_REG_PROX_CTRL0, ctrl0);
 	return ret;
 }
@@ -839,21 +828,21 @@ static int sx9310_init_device(struct iio_dev *indio_dev)
 	unsigned int i, val;
 
 	ret = regmap_write(data->regmap, SX9310_REG_RESET, SX9310_SOFT_RESET);
-	if (ret < 0)
+	if (ret)
 		return ret;
 
 	usleep_range(1000, 2000); /* power-up time is ~1ms. */
 
 	/* Clear reset interrupt state by reading SX9310_REG_IRQ_SRC. */
 	ret = regmap_read(data->regmap, SX9310_REG_IRQ_SRC, &val);
-	if (ret < 0)
+	if (ret)
 		return ret;
 
 	/* Program some sane defaults. */
 	for (i = 0; i < ARRAY_SIZE(sx9310_default_regs); i++) {
 		initval = &sx9310_default_regs[i];
 		ret = regmap_write(data->regmap, initval->reg, initval->def);
-		if (ret < 0)
+		if (ret)
 			return ret;
 	}
 
@@ -862,24 +851,15 @@ static int sx9310_init_device(struct iio_dev *indio_dev)
 
 static int sx9310_set_indio_dev_name(struct device *dev,
 				     struct iio_dev *indio_dev,
-				     const struct i2c_device_id *id, int whoami)
+				     unsigned int whoami)
 {
-	const struct acpi_device_id *acpi_id;
-
-	/* id will be NULL when enumerated via ACPI */
-	if (id) {
-		if (id->driver_data != whoami)
-			dev_err(dev, "WHOAMI does not match i2c_device_id: %s",
-				id->name);
-	} else if (ACPI_HANDLE(dev)) {
-		acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev);
-		if (!acpi_id)
-			return -ENODEV;
-		if (acpi_id->driver_data != whoami)
-			dev_err(dev, "WHOAMI does not match acpi_device_id: %s",
-				acpi_id->id);
-	} else
+	unsigned int long ddata;
+
+	ddata = (uintptr_t)device_get_match_data(dev);
+	if (ddata != whoami) {
+		dev_err(dev, "WHOAMI does not match device data: %u\n", whoami);
 		return -ENODEV;
+	}
 
 	switch (whoami) {
 	case SX9310_WHOAMI_VALUE:
@@ -889,26 +869,35 @@ static int sx9310_set_indio_dev_name(struct device *dev,
 		indio_dev->name = "sx9311";
 		break;
 	default:
-		dev_err(dev, "unexpected WHOAMI response: %u", whoami);
+		dev_err(dev, "unexpected WHOAMI response: %u\n", whoami);
 		return -ENODEV;
 	}
 
 	return 0;
 }
 
-static int sx9310_probe(struct i2c_client *client,
-			const struct i2c_device_id *id)
+static void sx9310_regulator_disable(void *_data)
+{
+	struct sx9310_data *data = _data;
+
+	regulator_bulk_disable(ARRAY_SIZE(data->supplies), data->supplies);
+}
+
+static int sx9310_probe(struct i2c_client *client)
 {
 	int ret;
+	struct device *dev = &client->dev;
 	struct iio_dev *indio_dev;
 	struct sx9310_data *data;
 
-	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
-	if (indio_dev == NULL)
+	indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
+	if (!indio_dev)
 		return -ENOMEM;
 
 	data = iio_priv(indio_dev);
 	data->client = client;
+	data->supplies[0].supply = "vdd";
+	data->supplies[1].supply = "svdd";
 	mutex_init(&data->mutex);
 	init_completion(&data->completion);
 
@@ -916,19 +905,32 @@ static int sx9310_probe(struct i2c_client *client,
 	if (IS_ERR(data->regmap))
 		return PTR_ERR(data->regmap);
 
+	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(data->supplies),
+				      data->supplies);
+	if (ret)
+		return ret;
+
+	ret = regulator_bulk_enable(ARRAY_SIZE(data->supplies), data->supplies);
+	if (ret)
+		return ret;
+	/* Must wait for Tpor time after initial power up */
+	usleep_range(1000, 1100);
+
+	ret = devm_add_action_or_reset(dev, sx9310_regulator_disable, data);
+	if (ret)
+		return ret;
+
 	ret = regmap_read(data->regmap, SX9310_REG_WHOAMI, &data->whoami);
-	if (ret < 0) {
-		dev_err(&client->dev, "error in reading WHOAMI register: %d",
-			ret);
+	if (ret) {
+		dev_err(dev, "error in reading WHOAMI register: %d", ret);
 		return ret;
 	}
 
-	ret = sx9310_set_indio_dev_name(&client->dev, indio_dev, id,
-					data->whoami);
-	if (ret < 0)
+	ret = sx9310_set_indio_dev_name(dev, indio_dev, data->whoami);
+	if (ret)
 		return ret;
 
-	ACPI_COMPANION_SET(&indio_dev->dev, ACPI_COMPANION(&client->dev));
+	ACPI_COMPANION_SET(&indio_dev->dev, ACPI_COMPANION(dev));
 	indio_dev->channels = sx9310_channels;
 	indio_dev->num_channels = ARRAY_SIZE(sx9310_channels);
 	indio_dev->info = &sx9310_info;
@@ -936,41 +938,41 @@ static int sx9310_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, indio_dev);
 
 	ret = sx9310_init_device(indio_dev);
-	if (ret < 0)
+	if (ret)
 		return ret;
 
 	if (client->irq) {
-		ret = devm_request_threaded_irq(&client->dev, client->irq,
+		ret = devm_request_threaded_irq(dev, client->irq,
 						sx9310_irq_handler,
 						sx9310_irq_thread_handler,
-						IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+						IRQF_ONESHOT,
 						"sx9310_event", indio_dev);
-		if (ret < 0)
+		if (ret)
 			return ret;
 
-		data->trig =
-			devm_iio_trigger_alloc(&client->dev, "%s-dev%d",
-					       indio_dev->name, indio_dev->id);
+		data->trig = devm_iio_trigger_alloc(dev, "%s-dev%d",
+						    indio_dev->name,
+						    indio_dev->id);
 		if (!data->trig)
 			return -ENOMEM;
 
-		data->trig->dev.parent = &client->dev;
+		data->trig->dev.parent = dev;
 		data->trig->ops = &sx9310_trigger_ops;
 		iio_trigger_set_drvdata(data->trig, indio_dev);
 
-		ret = devm_iio_trigger_register(&client->dev, data->trig);
+		ret = devm_iio_trigger_register(dev, data->trig);
 		if (ret)
 			return ret;
 	}
 
-	ret = devm_iio_triggered_buffer_setup(&client->dev, indio_dev,
+	ret = devm_iio_triggered_buffer_setup(dev, indio_dev,
 					      iio_pollfunc_store_time,
 					      sx9310_trigger_handler,
 					      &sx9310_buffer_setup_ops);
-	if (ret < 0)
+	if (ret)
 		return ret;
 
-	return devm_iio_device_register(&client->dev, indio_dev);
+	return devm_iio_device_register(dev, indio_dev);
 }
 
 static int __maybe_unused sx9310_suspend(struct device *dev)
@@ -985,11 +987,10 @@ static int __maybe_unused sx9310_suspend(struct device *dev)
 	mutex_lock(&data->mutex);
 	ret = regmap_read(data->regmap, SX9310_REG_PROX_CTRL0,
 			  &data->suspend_ctrl0);
-
 	if (ret)
 		goto out;
 
-	ctrl0 = data->suspend_ctrl0 & ~SX9310_REG_PROX_CTRL0_EN_MASK;
+	ctrl0 = data->suspend_ctrl0 & ~SX9310_REG_PROX_CTRL0_SENSOREN_MASK;
 	ret = regmap_write(data->regmap, SX9310_REG_PROX_CTRL0, ctrl0);
 	if (ret)
 		goto out;
@@ -1017,10 +1018,11 @@ static int __maybe_unused sx9310_resume(struct device *dev)
 
 out:
 	mutex_unlock(&data->mutex);
+	if (ret)
+		return ret;
 
 	enable_irq(data->client->irq);
-
-	return ret;
+	return 0;
 }
 
 static const struct dev_pm_ops sx9310_pm_ops = {
@@ -1030,32 +1032,39 @@ static const struct dev_pm_ops sx9310_pm_ops = {
 static const struct acpi_device_id sx9310_acpi_match[] = {
 	{ "STH9310", SX9310_WHOAMI_VALUE },
 	{ "STH9311", SX9311_WHOAMI_VALUE },
-	{},
+	{}
 };
 MODULE_DEVICE_TABLE(acpi, sx9310_acpi_match);
 
 static const struct of_device_id sx9310_of_match[] = {
-	{ .compatible = "semtech,sx9310" },
-	{ .compatible = "semtech,sx9311" },
-	{},
+	{ .compatible = "semtech,sx9310", (void *)SX9310_WHOAMI_VALUE },
+	{ .compatible = "semtech,sx9311", (void *)SX9311_WHOAMI_VALUE },
+	{}
 };
 MODULE_DEVICE_TABLE(of, sx9310_of_match);
 
 static const struct i2c_device_id sx9310_id[] = {
 	{ "sx9310", SX9310_WHOAMI_VALUE },
 	{ "sx9311", SX9311_WHOAMI_VALUE },
-	{},
+	{}
 };
 MODULE_DEVICE_TABLE(i2c, sx9310_id);
 
 static struct i2c_driver sx9310_driver = {
 	.driver = {
 		.name	= "sx9310",
-		.acpi_match_table = ACPI_PTR(sx9310_acpi_match),
-		.of_match_table = of_match_ptr(sx9310_of_match),
+		.acpi_match_table = sx9310_acpi_match,
+		.of_match_table = sx9310_of_match,
 		.pm = &sx9310_pm_ops,
+
+		/*
+		 * Lots of i2c transfers in probe + over 200 ms waiting in
+		 * sx9310_init_compensation() mean a slow probe; prefer async
+		 * so we don't delay boot if we're builtin to the kernel.
+		 */
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
-	.probe		= sx9310_probe,
+	.probe_new	= sx9310_probe,
 	.id_table	= sx9310_id,
 };
 module_i2c_driver(sx9310_driver);
diff --git a/drivers/iio/proximity/vl53l0x-i2c.c b/drivers/iio/proximity/vl53l0x-i2c.c
index 5fbda9475ba9..235e125aeb3a 100644
--- a/drivers/iio/proximity/vl53l0x-i2c.c
+++ b/drivers/iio/proximity/vl53l0x-i2c.c
@@ -4,18 +4,19 @@
  *
  * Copyright (C) 2016 STMicroelectronics Imaging Division.
  * Copyright (C) 2018 Song Qiang <songqiang1304521@gmail.com>
+ * Copyright (C) 2020 Ivan Drobyshevskyi <drobyshevskyi@gmail.com>
  *
  * Datasheet available at
  * <https://www.st.com/resource/en/datasheet/vl53l0x.pdf>
  *
  * Default 7-bit i2c slave address 0x29.
  *
- * TODO: FIFO buffer, continuous mode, interrupts, range selection,
- * sensor ID check.
+ * TODO: FIFO buffer, continuous mode, range selection, sensor ID check.
  */
 
 #include <linux/delay.h>
 #include <linux/i2c.h>
+#include <linux/interrupt.h>
 #include <linux/module.h>
 
 #include <linux/iio/iio.h>
@@ -29,14 +30,72 @@
 #define VL_REG_SYSRANGE_MODE_TIMED			BIT(2)
 #define VL_REG_SYSRANGE_MODE_HISTOGRAM			BIT(3)
 
+#define VL_REG_SYSTEM_INTERRUPT_CONFIG_GPIO		0x0A
+#define VL_REG_SYSTEM_INTERRUPT_GPIO_NEW_SAMPLE_READY	BIT(2)
+
+#define VL_REG_SYSTEM_INTERRUPT_CLEAR			0x0B
+
 #define VL_REG_RESULT_INT_STATUS			0x13
 #define VL_REG_RESULT_RANGE_STATUS			0x14
 #define VL_REG_RESULT_RANGE_STATUS_COMPLETE		BIT(0)
 
 struct vl53l0x_data {
 	struct i2c_client *client;
+	struct completion completion;
 };
 
+static irqreturn_t vl53l0x_handle_irq(int irq, void *priv)
+{
+	struct iio_dev *indio_dev = priv;
+	struct vl53l0x_data *data = iio_priv(indio_dev);
+
+	complete(&data->completion);
+
+	return IRQ_HANDLED;
+}
+
+static int vl53l0x_configure_irq(struct i2c_client *client,
+				 struct iio_dev *indio_dev)
+{
+	struct vl53l0x_data *data = iio_priv(indio_dev);
+	int ret;
+
+	ret = devm_request_irq(&client->dev, client->irq, vl53l0x_handle_irq,
+			IRQF_TRIGGER_FALLING, indio_dev->name, indio_dev);
+	if (ret) {
+		dev_err(&client->dev, "devm_request_irq error: %d\n", ret);
+		return ret;
+	}
+
+	ret = i2c_smbus_write_byte_data(data->client,
+			VL_REG_SYSTEM_INTERRUPT_CONFIG_GPIO,
+			VL_REG_SYSTEM_INTERRUPT_GPIO_NEW_SAMPLE_READY);
+	if (ret < 0)
+		dev_err(&client->dev, "failed to configure IRQ: %d\n", ret);
+
+	return ret;
+}
+
+static void vl53l0x_clear_irq(struct vl53l0x_data *data)
+{
+	struct device *dev = &data->client->dev;
+	int ret;
+
+	ret = i2c_smbus_write_byte_data(data->client,
+					VL_REG_SYSTEM_INTERRUPT_CLEAR, 1);
+	if (ret < 0)
+		dev_err(dev, "failed to clear error irq: %d\n", ret);
+
+	ret = i2c_smbus_write_byte_data(data->client,
+					VL_REG_SYSTEM_INTERRUPT_CLEAR, 0);
+	if (ret < 0)
+		dev_err(dev, "failed to clear range irq: %d\n", ret);
+
+	ret = i2c_smbus_read_byte_data(data->client, VL_REG_RESULT_INT_STATUS);
+	if (ret < 0 || ret & 0x07)
+		dev_err(dev, "failed to clear irq: %d\n", ret);
+}
+
 static int vl53l0x_read_proximity(struct vl53l0x_data *data,
 				  const struct iio_chan_spec *chan,
 				  int *val)
@@ -50,19 +109,31 @@ static int vl53l0x_read_proximity(struct vl53l0x_data *data,
 	if (ret < 0)
 		return ret;
 
-	do {
-		ret = i2c_smbus_read_byte_data(client,
-					       VL_REG_RESULT_RANGE_STATUS);
+	if (data->client->irq) {
+		reinit_completion(&data->completion);
+
+		ret = wait_for_completion_timeout(&data->completion, HZ/10);
 		if (ret < 0)
 			return ret;
+		else if (ret == 0)
+			return -ETIMEDOUT;
 
-		if (ret & VL_REG_RESULT_RANGE_STATUS_COMPLETE)
-			break;
+		vl53l0x_clear_irq(data);
+	} else {
+		do {
+			ret = i2c_smbus_read_byte_data(client,
+					       VL_REG_RESULT_RANGE_STATUS);
+			if (ret < 0)
+				return ret;
 
-		usleep_range(1000, 5000);
-	} while (--tries);
-	if (!tries)
-		return -ETIMEDOUT;
+			if (ret & VL_REG_RESULT_RANGE_STATUS_COMPLETE)
+				break;
+
+			usleep_range(1000, 5000);
+		} while (--tries);
+		if (!tries)
+			return -ETIMEDOUT;
+	}
 
 	ret = i2c_smbus_read_i2c_block_data(client, VL_REG_RESULT_RANGE_STATUS,
 					    12, buffer);
@@ -140,6 +211,17 @@ static int vl53l0x_probe(struct i2c_client *client)
 	indio_dev->num_channels = ARRAY_SIZE(vl53l0x_channels);
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
+	/* usage of interrupt is optional */
+	if (client->irq) {
+		int ret;
+
+		init_completion(&data->completion);
+
+		ret = vl53l0x_configure_irq(client, indio_dev);
+		if (ret)
+			return ret;
+	}
+
 	return devm_iio_device_register(&client->dev, indio_dev);
 }
 
diff --git a/drivers/iio/resolver/ad2s1200.c b/drivers/iio/resolver/ad2s1200.c
index 6007abad116b..9746bd935628 100644
--- a/drivers/iio/resolver/ad2s1200.c
+++ b/drivers/iio/resolver/ad2s1200.c
@@ -12,6 +12,7 @@
 #include <linux/device.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/mutex.h>
 #include <linux/spi/spi.h>
 #include <linux/sysfs.h>
@@ -192,7 +193,7 @@ MODULE_DEVICE_TABLE(spi, ad2s1200_id);
 static struct spi_driver ad2s1200_driver = {
 	.driver = {
 		.name = DRV_NAME,
-		.of_match_table = of_match_ptr(ad2s1200_of_match),
+		.of_match_table = ad2s1200_of_match,
 	},
 	.probe = ad2s1200_probe,
 	.id_table = ad2s1200_id,
diff --git a/drivers/iio/temperature/ltc2983.c b/drivers/iio/temperature/ltc2983.c
index 55ff28a0f1c7..3b5ba26d7d86 100644
--- a/drivers/iio/temperature/ltc2983.c
+++ b/drivers/iio/temperature/ltc2983.c
@@ -1285,18 +1285,20 @@ static int ltc2983_parse_dt(struct ltc2983_data *st)
 		ret = of_property_read_u32(child, "reg", &sensor.chan);
 		if (ret) {
 			dev_err(dev, "reg property must given for child nodes\n");
-			return ret;
+			goto put_child;
 		}
 
 		/* check if we have a valid channel */
 		if (sensor.chan < LTC2983_MIN_CHANNELS_NR ||
 		    sensor.chan > LTC2983_MAX_CHANNELS_NR) {
+			ret = -EINVAL;
 			dev_err(dev,
 				"chan:%d must be from 1 to 20\n", sensor.chan);
-			return -EINVAL;
+			goto put_child;
 		} else if (channel_avail_mask & BIT(sensor.chan)) {
+			ret = -EINVAL;
 			dev_err(dev, "chan:%d already in use\n", sensor.chan);
-			return -EINVAL;
+			goto put_child;
 		}
 
 		ret = of_property_read_u32(child, "adi,sensor-type",
@@ -1304,7 +1306,7 @@ static int ltc2983_parse_dt(struct ltc2983_data *st)
 		if (ret) {
 			dev_err(dev,
 				"adi,sensor-type property must given for child nodes\n");
-			return ret;
+			goto put_child;
 		}
 
 		dev_dbg(dev, "Create new sensor, type %u, chann %u",
@@ -1334,13 +1336,15 @@ static int ltc2983_parse_dt(struct ltc2983_data *st)
 			st->sensors[chan] = ltc2983_adc_new(child, st, &sensor);
 		} else {
 			dev_err(dev, "Unknown sensor type %d\n", sensor.type);
-			return -EINVAL;
+			ret = -EINVAL;
+			goto put_child;
 		}
 
 		if (IS_ERR(st->sensors[chan])) {
 			dev_err(dev, "Failed to create sensor %ld",
 				PTR_ERR(st->sensors[chan]));
-			return PTR_ERR(st->sensors[chan]);
+			ret = PTR_ERR(st->sensors[chan]);
+			goto put_child;
 		}
 		/* set generic sensor parameters */
 		st->sensors[chan]->chan = sensor.chan;
@@ -1351,6 +1355,9 @@ static int ltc2983_parse_dt(struct ltc2983_data *st)
 	}
 
 	return 0;
+put_child:
+	of_node_put(child);
+	return ret;
 }
 
 static int ltc2983_setup(struct ltc2983_data *st, bool assign_iio)
diff --git a/drivers/iio/temperature/mlx90632.c b/drivers/iio/temperature/mlx90632.c
index 51b812bcff2e..503fe54a0bb9 100644
--- a/drivers/iio/temperature/mlx90632.c
+++ b/drivers/iio/temperature/mlx90632.c
@@ -10,7 +10,9 @@
 #include <linux/err.h>
 #include <linux/gpio/consumer.h>
 #include <linux/i2c.h>
+#include <linux/iopoll.h>
 #include <linux/kernel.h>
+#include <linux/limits.h>
 #include <linux/module.h>
 #include <linux/math64.h>
 #include <linux/of.h>
@@ -58,6 +60,8 @@
 /* Control register address - volatile */
 #define MLX90632_REG_CONTROL	0x3001 /* Control Register address */
 #define   MLX90632_CFG_PWR_MASK		GENMASK(2, 1) /* PowerMode Mask */
+#define   MLX90632_CFG_MTYP_MASK		GENMASK(8, 4) /* Meas select Mask */
+
 /* PowerModes statuses */
 #define MLX90632_PWR_STATUS(ctrl_val) (ctrl_val << 1)
 #define MLX90632_PWR_STATUS_HALT MLX90632_PWR_STATUS(0) /* hold */
@@ -65,6 +69,18 @@
 #define MLX90632_PWR_STATUS_STEP MLX90632_PWR_STATUS(2) /* step */
 #define MLX90632_PWR_STATUS_CONTINUOUS MLX90632_PWR_STATUS(3) /* continuous*/
 
+/* Measurement types */
+#define MLX90632_MTYP_MEDICAL 0
+#define MLX90632_MTYP_EXTENDED 17
+
+/* Measurement type select*/
+#define MLX90632_MTYP_STATUS(ctrl_val) (ctrl_val << 4)
+#define MLX90632_MTYP_STATUS_MEDICAL MLX90632_MTYP_STATUS(MLX90632_MTYP_MEDICAL)
+#define MLX90632_MTYP_STATUS_EXTENDED MLX90632_MTYP_STATUS(MLX90632_MTYP_EXTENDED)
+
+/* I2C command register - volatile */
+#define MLX90632_REG_I2C_CMD    0x3005 /* I2C command Register address */
+
 /* Device status register - volatile */
 #define MLX90632_REG_STATUS	0x3fff /* Device status register */
 #define   MLX90632_STAT_BUSY		BIT(10) /* Device busy indicator */
@@ -78,26 +94,53 @@
 #define MLX90632_RAM_2(meas_num)	(MLX90632_ADDR_RAM + 3 * meas_num + 1)
 #define MLX90632_RAM_3(meas_num)	(MLX90632_ADDR_RAM + 3 * meas_num + 2)
 
+/* Name important RAM_MEAS channels */
+#define MLX90632_RAM_DSP5_EXTENDED_AMBIENT_1 MLX90632_RAM_3(17)
+#define MLX90632_RAM_DSP5_EXTENDED_AMBIENT_2 MLX90632_RAM_3(18)
+#define MLX90632_RAM_DSP5_EXTENDED_OBJECT_1 MLX90632_RAM_1(17)
+#define MLX90632_RAM_DSP5_EXTENDED_OBJECT_2 MLX90632_RAM_2(17)
+#define MLX90632_RAM_DSP5_EXTENDED_OBJECT_3 MLX90632_RAM_1(18)
+#define MLX90632_RAM_DSP5_EXTENDED_OBJECT_4 MLX90632_RAM_2(18)
+#define MLX90632_RAM_DSP5_EXTENDED_OBJECT_5 MLX90632_RAM_1(19)
+#define MLX90632_RAM_DSP5_EXTENDED_OBJECT_6 MLX90632_RAM_2(19)
+
 /* Magic constants */
 #define MLX90632_ID_MEDICAL	0x0105 /* EEPROM DSPv5 Medical device id */
 #define MLX90632_ID_CONSUMER	0x0205 /* EEPROM DSPv5 Consumer device id */
+#define MLX90632_ID_EXTENDED	0x0505 /* EEPROM DSPv5 Extended range device id */
+#define MLX90632_ID_MASK	GENMASK(14, 0) /* DSP version and device ID in EE_VERSION */
 #define MLX90632_DSP_VERSION	5 /* DSP version */
 #define MLX90632_DSP_MASK	GENMASK(7, 0) /* DSP version in EE_VERSION */
 #define MLX90632_RESET_CMD	0x0006 /* Reset sensor (address or global) */
-#define MLX90632_REF_12		12LL /**< ResCtrlRef value of Ch 1 or Ch 2 */
-#define MLX90632_REF_3		12LL /**< ResCtrlRef value of Channel 3 */
-#define MLX90632_MAX_MEAS_NUM	31 /**< Maximum measurements in list */
-#define MLX90632_SLEEP_DELAY_MS 3000 /**< Autosleep delay */
+#define MLX90632_REF_12 	12LL /* ResCtrlRef value of Ch 1 or Ch 2 */
+#define MLX90632_REF_3		12LL /* ResCtrlRef value of Channel 3 */
+#define MLX90632_MAX_MEAS_NUM	31 /* Maximum measurements in list */
+#define MLX90632_SLEEP_DELAY_MS 3000 /* Autosleep delay */
+#define MLX90632_EXTENDED_LIMIT 27000 /* Extended mode raw value limit */
 
+/**
+ * struct mlx90632_data - private data for the MLX90632 device
+ * @client: I2C client of the device
+ * @lock: Internal mutex for multiple reads for single measurement
+ * @regmap: Regmap of the device
+ * @emissivity: Object emissivity from 0 to 1000 where 1000 = 1.
+ * @mtyp: Measurement type physical sensor configuration for extended range
+ *        calculations
+ * @object_ambient_temperature: Ambient temperature at object (might differ of
+ *                              the ambient temperature of sensor.
+ */
 struct mlx90632_data {
 	struct i2c_client *client;
-	struct mutex lock; /* Multiple reads for single measurement */
+	struct mutex lock;
 	struct regmap *regmap;
 	u16 emissivity;
+	u8 mtyp;
+	u32 object_ambient_temperature;
 };
 
 static const struct regmap_range mlx90632_volatile_reg_range[] = {
 	regmap_reg_range(MLX90632_REG_I2C_ADDR, MLX90632_REG_CONTROL),
+	regmap_reg_range(MLX90632_REG_I2C_CMD, MLX90632_REG_I2C_CMD),
 	regmap_reg_range(MLX90632_REG_STATUS, MLX90632_REG_STATUS),
 	regmap_reg_range(MLX90632_RAM_1(0),
 			 MLX90632_RAM_3(MLX90632_MAX_MEAS_NUM)),
@@ -113,6 +156,7 @@ static const struct regmap_range mlx90632_read_reg_range[] = {
 	regmap_reg_range(MLX90632_EE_CTRL, MLX90632_EE_I2C_ADDR),
 	regmap_reg_range(MLX90632_EE_Ha, MLX90632_EE_Hb),
 	regmap_reg_range(MLX90632_REG_I2C_ADDR, MLX90632_REG_CONTROL),
+	regmap_reg_range(MLX90632_REG_I2C_CMD, MLX90632_REG_I2C_CMD),
 	regmap_reg_range(MLX90632_REG_STATUS, MLX90632_REG_STATUS),
 	regmap_reg_range(MLX90632_RAM_1(0),
 			 MLX90632_RAM_3(MLX90632_MAX_MEAS_NUM)),
@@ -173,25 +217,19 @@ static s32 mlx90632_pwr_continuous(struct regmap *regmap)
  */
 static int mlx90632_perform_measurement(struct mlx90632_data *data)
 {
-	int ret, tries = 100;
 	unsigned int reg_status;
+	int ret;
 
 	ret = regmap_update_bits(data->regmap, MLX90632_REG_STATUS,
 				 MLX90632_STAT_DATA_RDY, 0);
 	if (ret < 0)
 		return ret;
 
-	while (tries-- > 0) {
-		ret = regmap_read(data->regmap, MLX90632_REG_STATUS,
-				  &reg_status);
-		if (ret < 0)
-			return ret;
-		if (reg_status & MLX90632_STAT_DATA_RDY)
-			break;
-		usleep_range(10000, 11000);
-	}
+	ret = regmap_read_poll_timeout(data->regmap, MLX90632_REG_STATUS, reg_status,
+				       !(reg_status & MLX90632_STAT_DATA_RDY), 10000,
+				       100 * 10000);
 
-	if (tries < 0) {
+	if (ret < 0) {
 		dev_err(&data->client->dev, "data not ready");
 		return -ETIMEDOUT;
 	}
@@ -199,6 +237,26 @@ static int mlx90632_perform_measurement(struct mlx90632_data *data)
 	return (reg_status & MLX90632_STAT_CYCLE_POS) >> 2;
 }
 
+static int mlx90632_set_meas_type(struct regmap *regmap, u8 type)
+{
+	int ret;
+
+	if ((type != MLX90632_MTYP_MEDICAL) && (type != MLX90632_MTYP_EXTENDED))
+		return -EINVAL;
+
+	ret = regmap_write(regmap, MLX90632_REG_I2C_CMD, MLX90632_RESET_CMD);
+	if (ret < 0)
+		return ret;
+
+	ret = regmap_write_bits(regmap, MLX90632_REG_CONTROL,
+				 (MLX90632_CFG_MTYP_MASK | MLX90632_CFG_PWR_MASK),
+				 (MLX90632_MTYP_STATUS(type) | MLX90632_PWR_STATUS_HALT));
+	if (ret < 0)
+		return ret;
+
+	return mlx90632_pwr_continuous(regmap);
+}
+
 static int mlx90632_channel_new_select(int perform_ret, uint8_t *channel_new,
 				       uint8_t *channel_old)
 {
@@ -300,6 +358,97 @@ read_unlock:
 	return ret;
 }
 
+static int mlx90632_read_ambient_raw_extended(struct regmap *regmap,
+					      s16 *ambient_new_raw, s16 *ambient_old_raw)
+{
+	unsigned int read_tmp;
+	int ret;
+
+	ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_AMBIENT_1, &read_tmp);
+	if (ret < 0)
+		return ret;
+	*ambient_new_raw = (s16)read_tmp;
+
+	ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_AMBIENT_2, &read_tmp);
+	if (ret < 0)
+		return ret;
+	*ambient_old_raw = (s16)read_tmp;
+
+	return 0;
+}
+
+static int mlx90632_read_object_raw_extended(struct regmap *regmap, s16 *object_new_raw)
+{
+	unsigned int read_tmp;
+	s32 read;
+	int ret;
+
+	ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_OBJECT_1, &read_tmp);
+	if (ret < 0)
+		return ret;
+	read = (s16)read_tmp;
+
+	ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_OBJECT_2, &read_tmp);
+	if (ret < 0)
+		return ret;
+	read = read - (s16)read_tmp;
+
+	ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_OBJECT_3, &read_tmp);
+	if (ret < 0)
+		return ret;
+	read = read - (s16)read_tmp;
+
+	ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_OBJECT_4, &read_tmp);
+	if (ret < 0)
+		return ret;
+	read = (read + (s16)read_tmp) / 2;
+
+	ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_OBJECT_5, &read_tmp);
+	if (ret < 0)
+		return ret;
+	read = read + (s16)read_tmp;
+
+	ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_OBJECT_6, &read_tmp);
+	if (ret < 0)
+		return ret;
+	read = read + (s16)read_tmp;
+
+	if (read > S16_MAX || read < S16_MIN)
+		return -ERANGE;
+
+	*object_new_raw = read;
+
+	return 0;
+}
+
+static int mlx90632_read_all_channel_extended(struct mlx90632_data *data, s16 *object_new_raw,
+					      s16 *ambient_new_raw, s16 *ambient_old_raw)
+{
+	s32 ret, meas;
+
+	mutex_lock(&data->lock);
+	ret = mlx90632_set_meas_type(data->regmap, MLX90632_MTYP_EXTENDED);
+	if (ret < 0)
+		goto read_unlock;
+
+	ret = read_poll_timeout(mlx90632_perform_measurement, meas, meas == 19,
+				50000, 800000, false, data);
+	if (ret != 0)
+		goto read_unlock;
+
+	ret = mlx90632_read_object_raw_extended(data->regmap, object_new_raw);
+	if (ret < 0)
+		goto read_unlock;
+
+	ret = mlx90632_read_ambient_raw_extended(data->regmap, ambient_new_raw, ambient_old_raw);
+
+read_unlock:
+	(void) mlx90632_set_meas_type(data->regmap, MLX90632_MTYP_MEDICAL);
+
+	mutex_unlock(&data->lock);
+	return ret;
+}
+
 static int mlx90632_read_ee_register(struct regmap *regmap, u16 reg_lsb,
 				     s32 *reg_value)
 {
@@ -354,9 +503,23 @@ static s64 mlx90632_preprocess_temp_obj(s16 object_new_raw, s16 object_old_raw,
 	return div64_s64((tmp << 19ULL), 1000LL);
 }
 
+static s64 mlx90632_preprocess_temp_obj_extended(s16 object_new_raw, s16 ambient_new_raw,
+						 s16 ambient_old_raw, s16 Ka)
+{
+	s64 VR_IR, kKa, tmp;
+
+	kKa = ((s64)Ka * 1000LL) >> 10ULL;
+	VR_IR = (s64)ambient_old_raw * 1000000LL +
+		kKa * div64_s64((s64)ambient_new_raw * 1000LL,
+				MLX90632_REF_3);
+	tmp = div64_s64(
+			div64_s64((s64) object_new_raw * 1000000000000LL, MLX90632_REF_12),
+			VR_IR);
+	return div64_s64(tmp << 19ULL, 1000LL);
+}
+
 static s32 mlx90632_calc_temp_ambient(s16 ambient_new_raw, s16 ambient_old_raw,
-				      s32 P_T, s32 P_R, s32 P_G, s32 P_O,
-				      s16 Gb)
+				      s32 P_T, s32 P_R, s32 P_G, s32 P_O, s16 Gb)
 {
 	s64 Asub, Bsub, Ablock, Bblock, Cblock, AMB, sum;
 
@@ -374,11 +537,11 @@ static s32 mlx90632_calc_temp_ambient(s16 ambient_new_raw, s16 ambient_old_raw,
 }
 
 static s32 mlx90632_calc_temp_object_iteration(s32 prev_object_temp, s64 object,
-					       s64 TAdut, s32 Fa, s32 Fb,
+					       s64 TAdut, s64 TAdut4, s32 Fa, s32 Fb,
 					       s32 Ga, s16 Ha, s16 Hb,
 					       u16 emissivity)
 {
-	s64 calcedKsTO, calcedKsTA, ir_Alpha, TAdut4, Alpha_corr;
+	s64 calcedKsTO, calcedKsTA, ir_Alpha, Alpha_corr;
 	s64 Ha_customer, Hb_customer;
 
 	Ha_customer = ((s64)Ha * 1000000LL) >> 14ULL;
@@ -393,36 +556,66 @@ static s32 mlx90632_calc_temp_object_iteration(s32 prev_object_temp, s64 object,
 	Alpha_corr = emissivity * div64_s64(Alpha_corr, 100000LL);
 	Alpha_corr = div64_s64(Alpha_corr, 1000LL);
 	ir_Alpha = div64_s64((s64)object * 10000000LL, Alpha_corr);
-	TAdut4 = (div64_s64(TAdut, 10000LL) + 27315) *
-		(div64_s64(TAdut, 10000LL) + 27315) *
-		(div64_s64(TAdut, 10000LL)  + 27315) *
-		(div64_s64(TAdut, 10000LL) + 27315);
 
 	return (int_sqrt64(int_sqrt64(ir_Alpha * 1000000000000LL + TAdut4))
 		- 27315 - Hb_customer) * 10;
 }
 
+static s64 mlx90632_calc_ta4(s64 TAdut, s64 scale)
+{
+	return (div64_s64(TAdut, scale) + 27315) *
+		(div64_s64(TAdut, scale) + 27315) *
+		(div64_s64(TAdut, scale) + 27315) *
+		(div64_s64(TAdut, scale) + 27315);
+}
+
 static s32 mlx90632_calc_temp_object(s64 object, s64 ambient, s32 Ea, s32 Eb,
 				     s32 Fa, s32 Fb, s32 Ga, s16 Ha, s16 Hb,
 				     u16 tmp_emi)
 {
-	s64 kTA, kTA0, TAdut;
+	s64 kTA, kTA0, TAdut, TAdut4;
 	s64 temp = 25000;
 	s8 i;
 
 	kTA = (Ea * 1000LL) >> 16LL;
 	kTA0 = (Eb * 1000LL) >> 8LL;
 	TAdut = div64_s64(((ambient - kTA0) * 1000000LL), kTA) + 25 * 1000000LL;
+	TAdut4 = mlx90632_calc_ta4(TAdut, 10000LL);
 
 	/* Iterations of calculation as described in datasheet */
 	for (i = 0; i < 5; ++i) {
-		temp = mlx90632_calc_temp_object_iteration(temp, object, TAdut,
+		temp = mlx90632_calc_temp_object_iteration(temp, object, TAdut, TAdut4,
 							   Fa, Fb, Ga, Ha, Hb,
 							   tmp_emi);
 	}
 	return temp;
 }
 
+static s32 mlx90632_calc_temp_object_extended(s64 object, s64 ambient, s64 reflected,
+					      s32 Ea, s32 Eb, s32 Fa, s32 Fb, s32 Ga,
+					      s16 Ha, s16 Hb, u16 tmp_emi)
+{
+	s64 kTA, kTA0, TAdut, TAdut4, Tr4, TaTr4;
+	s64 temp = 25000;
+	s8 i;
+
+	kTA = (Ea * 1000LL) >> 16LL;
+	kTA0 = (Eb * 1000LL) >> 8LL;
+	TAdut = div64_s64((ambient - kTA0) * 1000000LL, kTA) + 25 * 1000000LL;
+	Tr4 = mlx90632_calc_ta4(reflected, 10);
+	TAdut4 = mlx90632_calc_ta4(TAdut, 10000LL);
+	TaTr4 = Tr4 - div64_s64(Tr4 - TAdut4, tmp_emi) * 1000;
+
+	/* Iterations of calculation as described in datasheet */
+	for (i = 0; i < 5; ++i) {
+		temp = mlx90632_calc_temp_object_iteration(temp, object, TAdut, TaTr4,
+							   Fa / 2, Fb, Ga, Ha, Hb,
+							   tmp_emi);
+	}
+
+	return temp;
+}
+
 static int mlx90632_calc_object_dsp105(struct mlx90632_data *data, int *val)
 {
 	s32 ret;
@@ -470,6 +663,26 @@ static int mlx90632_calc_object_dsp105(struct mlx90632_data *data, int *val)
 	if (ret < 0)
 		return ret;
 
+	if (object_new_raw > MLX90632_EXTENDED_LIMIT &&
+	    data->mtyp == MLX90632_MTYP_EXTENDED) {
+		ret = mlx90632_read_all_channel_extended(data, &object_new_raw,
+							 &ambient_new_raw, &ambient_old_raw);
+		if (ret < 0)
+			return ret;
+
+		/* Use extended mode calculations */
+		ambient = mlx90632_preprocess_temp_amb(ambient_new_raw,
+						       ambient_old_raw, Gb);
+		object = mlx90632_preprocess_temp_obj_extended(object_new_raw,
+							       ambient_new_raw,
+							       ambient_old_raw, Ka);
+		*val = mlx90632_calc_temp_object_extended(object, ambient,
+							  data->object_ambient_temperature,
+							  Ea, Eb, Fa, Fb, Ga,
+							  Ha, Hb, data->emissivity);
+		return 0;
+	}
+
 	ambient = mlx90632_preprocess_temp_amb(ambient_new_raw,
 					       ambient_old_raw, Gb);
 	object = mlx90632_preprocess_temp_obj(object_new_raw,
@@ -548,7 +761,9 @@ static int mlx90632_read_raw(struct iio_dev *indio_dev,
 			*val2 = data->emissivity * 1000;
 		}
 		return IIO_VAL_INT_PLUS_MICRO;
-
+	case IIO_CHAN_INFO_CALIBAMBIENT:
+		*val = data->object_ambient_temperature;
+		return IIO_VAL_INT;
 	default:
 		return -EINVAL;
 	}
@@ -568,6 +783,9 @@ static int mlx90632_write_raw(struct iio_dev *indio_dev,
 			return -EINVAL;
 		data->emissivity = val * 1000 + val2 / 1000;
 		return 0;
+	case IIO_CHAN_INFO_CALIBAMBIENT:
+		data->object_ambient_temperature = val;
+		return 0;
 	default:
 		return -EINVAL;
 	}
@@ -585,7 +803,7 @@ static const struct iio_chan_spec mlx90632_channels[] = {
 		.modified = 1,
 		.channel2 = IIO_MOD_TEMP_OBJECT,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
-			BIT(IIO_CHAN_INFO_CALIBEMISSIVITY),
+			BIT(IIO_CHAN_INFO_CALIBEMISSIVITY) | BIT(IIO_CHAN_INFO_CALIBAMBIENT),
 	},
 };
 
@@ -643,6 +861,7 @@ static int mlx90632_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, indio_dev);
 	mlx90632->client = client;
 	mlx90632->regmap = regmap;
+	mlx90632->mtyp = MLX90632_MTYP_MEDICAL;
 
 	mutex_init(&mlx90632->lock);
 	indio_dev->name = id->name;
@@ -662,15 +881,20 @@ static int mlx90632_probe(struct i2c_client *client,
 		dev_err(&client->dev, "read of version failed: %d\n", ret);
 		return ret;
 	}
+	read = read & MLX90632_ID_MASK;
 	if (read == MLX90632_ID_MEDICAL) {
 		dev_dbg(&client->dev,
 			"Detected Medical EEPROM calibration %x\n", read);
 	} else if (read == MLX90632_ID_CONSUMER) {
 		dev_dbg(&client->dev,
 			"Detected Consumer EEPROM calibration %x\n", read);
+	} else if (read == MLX90632_ID_EXTENDED) {
+		dev_dbg(&client->dev,
+			"Detected Extended range EEPROM calibration %x\n", read);
+		mlx90632->mtyp = MLX90632_MTYP_EXTENDED;
 	} else if ((read & MLX90632_DSP_MASK) == MLX90632_DSP_VERSION) {
 		dev_dbg(&client->dev,
-			"Detected Unknown EEPROM calibration %x\n", read);	
+			"Detected Unknown EEPROM calibration %x\n", read);
 	} else {
 		dev_err(&client->dev,
 			"Wrong DSP version %x (expected %x)\n",
@@ -679,6 +903,7 @@ static int mlx90632_probe(struct i2c_client *client,
 	}
 
 	mlx90632->emissivity = 1000;
+	mlx90632->object_ambient_temperature = 25000; /* 25 degrees milliCelsius */
 
 	pm_runtime_disable(&client->dev);
 	ret = pm_runtime_set_active(&client->dev);
diff --git a/drivers/iio/temperature/tmp007.c b/drivers/iio/temperature/tmp007.c
index f90fe9e5617b..ad2b35c65548 100644
--- a/drivers/iio/temperature/tmp007.c
+++ b/drivers/iio/temperature/tmp007.c
@@ -20,7 +20,7 @@
 #include <linux/module.h>
 #include <linux/pm.h>
 #include <linux/bitops.h>
-#include <linux/of.h>
+#include <linux/mod_devicetable.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
 
@@ -578,7 +578,7 @@ MODULE_DEVICE_TABLE(i2c, tmp007_id);
 static struct i2c_driver tmp007_driver = {
 	.driver = {
 		.name	= "tmp007",
-		.of_match_table = of_match_ptr(tmp007_of_match),
+		.of_match_table = tmp007_of_match,
 		.pm	= &tmp007_pm_ops,
 	},
 	.probe		= tmp007_probe,
diff --git a/drivers/iio/temperature/tsys01.c b/drivers/iio/temperature/tsys01.c
index 2c631a1ca33b..bbfbad9a8767 100644
--- a/drivers/iio/temperature/tsys01.c
+++ b/drivers/iio/temperature/tsys01.c
@@ -13,6 +13,7 @@
 #include <linux/device.h>
 #include <linux/mutex.h>
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/stat.h>
@@ -222,7 +223,7 @@ static struct i2c_driver tsys01_driver = {
 	.id_table = tsys01_id,
 	.driver = {
 		   .name = "tsys01",
-		   .of_match_table = of_match_ptr(tsys01_of_match),
+		   .of_match_table = tsys01_of_match,
 		   },
 };