Merge tag 'char-misc-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the large set of char/misc and other driver subsystem changes
  for 6.2-rc1. Nothing earth-shattering in here at all, just a lot of
  new driver development and minor fixes.

  Highlights include:

   - fastrpc driver updates

   - iio new drivers and updates

   - habanalabs driver updates for new hardware and features

   - slimbus driver updates

   - speakup module parameters added to aid in boot time configuration

   - i2c probe_new conversions for lots of different drivers

   - other small driver fixes and additions

  One semi-interesting change in here is the increase of the number of
  misc dynamic minors available to 1048448 to handle new huge-cpu
  systems.

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

* tag 'char-misc-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (521 commits)
  extcon: usbc-tusb320: Convert to i2c's .probe_new()
  extcon: rt8973: Convert to i2c's .probe_new()
  extcon: fsa9480: Convert to i2c's .probe_new()
  extcon: max77843: Replace irqchip mask_invert with unmask_base
  chardev: fix error handling in cdev_device_add()
  mcb: mcb-parse: fix error handing in chameleon_parse_gdd()
  drivers: mcb: fix resource leak in mcb_probe()
  coresight: etm4x: fix repeated words in comments
  coresight: cti: Fix null pointer error on CTI init before ETM
  coresight: trbe: remove cpuhp instance node before remove cpuhp state
  counter: stm32-lptimer-cnt: fix the check on arr and cmp registers update
  misc: fastrpc: Add dma_mask to fastrpc_channel_ctx
  misc: fastrpc: Add mmap request assigning for static PD pool
  misc: fastrpc: Safekeep mmaps on interrupted invoke
  misc: fastrpc: Add support for audiopd
  misc: fastrpc: Rework fastrpc_req_munmap
  misc: fastrpc: Use fastrpc_map_put in fastrpc_map_create on fail
  misc: fastrpc: Add fastrpc_remote_heap_alloc
  misc: fastrpc: Add reserved mem support
  misc: fastrpc: Rename audio protection domain to root
  ...

43 files changed, 1596 insertions, 268 deletions

diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
index ffac66db7ac9..03ac410c162e 100644
--- a/drivers/iio/accel/Kconfig
+++ b/drivers/iio/accel/Kconfig
@@ -409,6 +409,27 @@ config IIO_ST_ACCEL_SPI_3AXIS
 	  To compile this driver as a module, choose M here. The module
 	  will be called st_accel_spi.
 
+config IIO_KX022A
+	tristate
+
+config IIO_KX022A_SPI
+	tristate "Kionix KX022A tri-axis digital accelerometer SPI interface"
+	depends on SPI
+	select IIO_KX022A
+	select REGMAP_SPI
+	help
+	  Enable support for the Kionix KX022A digital tri-axis
+	  accelerometer connected to I2C interface.
+
+config IIO_KX022A_I2C
+	tristate "Kionix KX022A tri-axis digital accelerometer I2C interface"
+	depends on I2C
+	select IIO_KX022A
+	select REGMAP_I2C
+	help
+	  Enable support for the Kionix KX022A digital tri-axis
+	  accelerometer connected to I2C interface.
+
 config KXSD9
 	tristate "Kionix KXSD9 Accelerometer Driver"
 	select IIO_BUFFER
diff --git a/drivers/iio/accel/Makefile b/drivers/iio/accel/Makefile
index 5e45b5fa5ab5..311ead9c3ef1 100644
--- a/drivers/iio/accel/Makefile
+++ b/drivers/iio/accel/Makefile
@@ -40,6 +40,9 @@ obj-$(CONFIG_FXLS8962AF)	+= fxls8962af-core.o
 obj-$(CONFIG_FXLS8962AF_I2C)	+= fxls8962af-i2c.o
 obj-$(CONFIG_FXLS8962AF_SPI)	+= fxls8962af-spi.o
 obj-$(CONFIG_HID_SENSOR_ACCEL_3D) += hid-sensor-accel-3d.o
+obj-$(CONFIG_IIO_KX022A)	+= kionix-kx022a.o
+obj-$(CONFIG_IIO_KX022A_I2C)	+= kionix-kx022a-i2c.o
+obj-$(CONFIG_IIO_KX022A_SPI)	+= kionix-kx022a-spi.o
 obj-$(CONFIG_KXCJK1013) += kxcjk-1013.o
 obj-$(CONFIG_KXSD9)	+= kxsd9.o
 obj-$(CONFIG_KXSD9_SPI)	+= kxsd9-spi.o
diff --git a/drivers/iio/accel/adis16201.c b/drivers/iio/accel/adis16201.c
index dfb8e2e5bdf5..d054721859b3 100644
--- a/drivers/iio/accel/adis16201.c
+++ b/drivers/iio/accel/adis16201.c
@@ -281,7 +281,7 @@ static int adis16201_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = adis_initial_startup(st);
+	ret = __adis_initial_startup(st);
 	if (ret)
 		return ret;
 
diff --git a/drivers/iio/accel/adis16209.c b/drivers/iio/accel/adis16209.c
index 5a9c6e2296f1..0035e4f4db63 100644
--- a/drivers/iio/accel/adis16209.c
+++ b/drivers/iio/accel/adis16209.c
@@ -291,7 +291,7 @@ static int adis16209_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = adis_initial_startup(st);
+	ret = __adis_initial_startup(st);
 	if (ret)
 		return ret;
 
diff --git a/drivers/iio/accel/adxl355.h b/drivers/iio/accel/adxl355.h
index 6dd49b13e4fd..061e66dc7057 100644
--- a/drivers/iio/accel/adxl355.h
+++ b/drivers/iio/accel/adxl355.h
@@ -10,12 +10,30 @@
 
 #include <linux/regmap.h>
 
+enum adxl355_device_type {
+	ADXL355,
+	ADXL359,
+};
+
+struct adxl355_fractional_type {
+	int integer;
+	int decimal;
+};
+
 struct device;
 
+struct adxl355_chip_info {
+	const char			*name;
+	u8				part_id;
+	struct adxl355_fractional_type	accel_scale;
+	struct adxl355_fractional_type	temp_offset;
+};
+
 extern const struct regmap_access_table adxl355_readable_regs_tbl;
 extern const struct regmap_access_table adxl355_writeable_regs_tbl;
+extern const struct adxl355_chip_info adxl35x_chip_info[];
 
 int adxl355_core_probe(struct device *dev, struct regmap *regmap,
-		       const char *name);
+		       const struct adxl355_chip_info *chip_info);
 
 #endif /* _ADXL355_H_ */
diff --git a/drivers/iio/accel/adxl355_core.c b/drivers/iio/accel/adxl355_core.c
index 4bc648eac8b2..0c9225d18fb2 100644
--- a/drivers/iio/accel/adxl355_core.c
+++ b/drivers/iio/accel/adxl355_core.c
@@ -60,6 +60,7 @@
 #define ADXL355_DEVID_AD_VAL		0xAD
 #define ADXL355_DEVID_MST_VAL		0x1D
 #define ADXL355_PARTID_VAL		0xED
+#define ADXL359_PARTID_VAL		0xE9
 #define ADXL355_RESET_CODE		0x52
 
 static const struct regmap_range adxl355_read_reg_range[] = {
@@ -83,6 +84,60 @@ const struct regmap_access_table adxl355_writeable_regs_tbl = {
 };
 EXPORT_SYMBOL_NS_GPL(adxl355_writeable_regs_tbl, IIO_ADXL355);
 
+const struct adxl355_chip_info adxl35x_chip_info[] = {
+	[ADXL355] = {
+		.name = "adxl355",
+		.part_id = ADXL355_PARTID_VAL,
+		/*
+		 * At +/- 2g with 20-bit resolution, scale is given in datasheet
+		 * as 3.9ug/LSB = 0.0000039 * 9.80665 = 0.00003824593 m/s^2.
+		 */
+		.accel_scale = {
+			.integer = 0,
+			.decimal = 38245,
+		},
+		/*
+		 * The datasheet defines an intercept of 1885 LSB at 25 degC
+		 * and a slope of -9.05 LSB/C. The following formula can be used
+		 * to find the temperature:
+		 * Temp = ((RAW - 1885)/(-9.05)) + 25 but this doesn't follow
+		 * the format of the IIO which is Temp = (RAW + OFFSET) * SCALE.
+		 * Hence using some rearranging we get the scale as -110.497238
+		 * and offset as -2111.25.
+		 */
+		.temp_offset = {
+			.integer =  -2111,
+			.decimal = 250000,
+		},
+	},
+	[ADXL359] = {
+		.name = "adxl359",
+		.part_id = ADXL359_PARTID_VAL,
+		/*
+		 * At +/- 10g with 20-bit resolution, scale is given in datasheet
+		 * as 19.5ug/LSB = 0.0000195 * 9.80665 = 0.0.00019122967 m/s^2.
+		 */
+		.accel_scale = {
+			.integer = 0,
+			.decimal = 191229,
+		},
+		/*
+		 * The datasheet defines an intercept of 1852 LSB at 25 degC
+		 * and a slope of -9.05 LSB/C. The following formula can be used
+		 * to find the temperature:
+		 * Temp = ((RAW - 1852)/(-9.05)) + 25 but this doesn't follow
+		 * the format of the IIO which is Temp = (RAW + OFFSET) * SCALE.
+		 * Hence using some rearranging we get the scale as -110.497238
+		 * and offset as -2079.25.
+		 */
+		.temp_offset = {
+			.integer = -2079,
+			.decimal = 250000,
+		},
+	},
+};
+EXPORT_SYMBOL_NS_GPL(adxl35x_chip_info, IIO_ADXL355);
+
 enum adxl355_op_mode {
 	ADXL355_MEASUREMENT,
 	ADXL355_STANDBY,
@@ -162,6 +217,7 @@ static const struct adxl355_chan_info adxl355_chans[] = {
 };
 
 struct adxl355_data {
+	const struct adxl355_chip_info *chip_info;
 	struct regmap *regmap;
 	struct device *dev;
 	struct mutex lock; /* lock to protect op_mode */
@@ -262,10 +318,8 @@ static int adxl355_setup(struct adxl355_data *data)
 	if (ret)
 		return ret;
 
-	if (regval != ADXL355_PARTID_VAL) {
-		dev_err(data->dev, "Invalid DEV ID 0x%02x\n", regval);
-		return -ENODEV;
-	}
+	if (regval != ADXL355_PARTID_VAL)
+		dev_warn(data->dev, "Invalid DEV ID 0x%02x\n", regval);
 
 	/*
 	 * Perform a software reset to make sure the device is in a consistent
@@ -458,33 +512,25 @@ static int adxl355_read_raw(struct iio_dev *indio_dev,
 
 	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
-		/*
-		 * The datasheet defines an intercept of 1885 LSB at 25 degC
-		 * and a slope of -9.05 LSB/C. The following formula can be used
-		 * to find the temperature:
-		 * Temp = ((RAW - 1885)/(-9.05)) + 25 but this doesn't follow
-		 * the format of the IIO which is Temp = (RAW + OFFSET) * SCALE.
-		 * Hence using some rearranging we get the scale as -110.497238
-		 * and offset as -2111.25.
-		 */
 		case IIO_TEMP:
+			/*
+			 * Temperature scale is -110.497238.
+			 * See the detailed explanation in adxl35x_chip_info
+			 * definition above.
+			 */
 			*val = -110;
 			*val2 = 497238;
 			return IIO_VAL_INT_PLUS_MICRO;
-		/*
-		 * At +/- 2g with 20-bit resolution, scale is given in datasheet
-		 * as 3.9ug/LSB = 0.0000039 * 9.80665 = 0.00003824593 m/s^2.
-		 */
 		case IIO_ACCEL:
-			*val = 0;
-			*val2 = 38245;
+			*val = data->chip_info->accel_scale.integer;
+			*val2 = data->chip_info->accel_scale.decimal;
 			return IIO_VAL_INT_PLUS_NANO;
 		default:
 			return -EINVAL;
 		}
 	case IIO_CHAN_INFO_OFFSET:
-		*val = -2111;
-		*val2 = 250000;
+		*val = data->chip_info->temp_offset.integer;
+		*val2 = data->chip_info->temp_offset.decimal;
 		return IIO_VAL_INT_PLUS_MICRO;
 	case IIO_CHAN_INFO_CALIBBIAS:
 		*val = sign_extend32(data->calibbias[chan->address], 15);
@@ -707,7 +753,7 @@ static int adxl355_probe_trigger(struct iio_dev *indio_dev, int irq)
 }
 
 int adxl355_core_probe(struct device *dev, struct regmap *regmap,
-		       const char *name)
+		       const struct adxl355_chip_info *chip_info)
 {
 	struct adxl355_data *data;
 	struct iio_dev *indio_dev;
@@ -722,9 +768,10 @@ int adxl355_core_probe(struct device *dev, struct regmap *regmap,
 	data->regmap = regmap;
 	data->dev = dev;
 	data->op_mode = ADXL355_STANDBY;
+	data->chip_info = chip_info;
 	mutex_init(&data->lock);
 
-	indio_dev->name = name;
+	indio_dev->name = chip_info->name;
 	indio_dev->info = &adxl355_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = adxl355_channels;
diff --git a/drivers/iio/accel/adxl355_i2c.c b/drivers/iio/accel/adxl355_i2c.c
index f67d57921c81..6cde5ccac06b 100644
--- a/drivers/iio/accel/adxl355_i2c.c
+++ b/drivers/iio/accel/adxl355_i2c.c
@@ -23,6 +23,20 @@ static const struct regmap_config adxl355_i2c_regmap_config = {
 static int adxl355_i2c_probe(struct i2c_client *client)
 {
 	struct regmap *regmap;
+	const struct adxl355_chip_info *chip_data;
+	const struct i2c_device_id *adxl355;
+
+	chip_data = device_get_match_data(&client->dev);
+	if (!chip_data) {
+		adxl355 = to_i2c_driver(client->dev.driver)->id_table;
+		if (!adxl355)
+			return -EINVAL;
+
+		chip_data = (void *)i2c_match_id(adxl355, client)->driver_data;
+
+		if (!chip_data)
+			return -EINVAL;
+	}
 
 	regmap = devm_regmap_init_i2c(client, &adxl355_i2c_regmap_config);
 	if (IS_ERR(regmap)) {
@@ -32,17 +46,19 @@ static int adxl355_i2c_probe(struct i2c_client *client)
 		return PTR_ERR(regmap);
 	}
 
-	return adxl355_core_probe(&client->dev, regmap, client->name);
+	return adxl355_core_probe(&client->dev, regmap, chip_data);
 }
 
 static const struct i2c_device_id adxl355_i2c_id[] = {
-	{ "adxl355", 0 },
+	{ "adxl355", (kernel_ulong_t)&adxl35x_chip_info[ADXL355] },
+	{ "adxl359", (kernel_ulong_t)&adxl35x_chip_info[ADXL359] },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, adxl355_i2c_id);
 
 static const struct of_device_id adxl355_of_match[] = {
-	{ .compatible = "adi,adxl355" },
+	{ .compatible = "adi,adxl355", .data = &adxl35x_chip_info[ADXL355] },
+	{ .compatible = "adi,adxl359", .data = &adxl35x_chip_info[ADXL359] },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, adxl355_of_match);
diff --git a/drivers/iio/accel/adxl355_spi.c b/drivers/iio/accel/adxl355_spi.c
index 5fe986ae03f6..fc99534d91ff 100644
--- a/drivers/iio/accel/adxl355_spi.c
+++ b/drivers/iio/accel/adxl355_spi.c
@@ -9,6 +9,7 @@
 #include <linux/mod_devicetable.h>
 #include <linux/regmap.h>
 #include <linux/spi/spi.h>
+#include <linux/property.h>
 
 #include "adxl355.h"
 
@@ -24,9 +25,17 @@ static const struct regmap_config adxl355_spi_regmap_config = {
 
 static int adxl355_spi_probe(struct spi_device *spi)
 {
-	const struct spi_device_id *id = spi_get_device_id(spi);
+	const struct adxl355_chip_info *chip_data;
 	struct regmap *regmap;
 
+	chip_data = device_get_match_data(&spi->dev);
+	if (!chip_data) {
+		chip_data = (void *)spi_get_device_id(spi)->driver_data;
+
+		if (!chip_data)
+			return -EINVAL;
+	}
+
 	regmap = devm_regmap_init_spi(spi, &adxl355_spi_regmap_config);
 	if (IS_ERR(regmap)) {
 		dev_err(&spi->dev, "Error initializing spi regmap: %ld\n",
@@ -35,17 +44,19 @@ static int adxl355_spi_probe(struct spi_device *spi)
 		return PTR_ERR(regmap);
 	}
 
-	return adxl355_core_probe(&spi->dev, regmap, id->name);
+	return adxl355_core_probe(&spi->dev, regmap, chip_data);
 }
 
 static const struct spi_device_id adxl355_spi_id[] = {
-	{ "adxl355", 0 },
+	{ "adxl355", (kernel_ulong_t)&adxl35x_chip_info[ADXL355] },
+	{ "adxl359", (kernel_ulong_t)&adxl35x_chip_info[ADXL359] },
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, adxl355_spi_id);
 
 static const struct of_device_id adxl355_of_match[] = {
-	{ .compatible = "adi,adxl355" },
+	{ .compatible = "adi,adxl355", .data = &adxl35x_chip_info[ADXL355] },
+	{ .compatible = "adi,adxl359", .data = &adxl35x_chip_info[ADXL359] },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, adxl355_of_match);
diff --git a/drivers/iio/accel/adxl367.c b/drivers/iio/accel/adxl367.c
index 7c7d78040793..90b7ae6d42b7 100644
--- a/drivers/iio/accel/adxl367.c
+++ b/drivers/iio/accel/adxl367.c
@@ -160,8 +160,6 @@ struct adxl367_state {
 	struct device			*dev;
 	struct regmap			*regmap;
 
-	struct regulator_bulk_data	regulators[2];
-
 	/*
 	 * Synchronize access to members of driver state, and ensure atomicity
 	 * of consecutive regmap operations.
@@ -1185,32 +1183,19 @@ static ssize_t adxl367_get_fifo_watermark(struct device *dev,
 	return sysfs_emit(buf, "%d\n", fifo_watermark);
 }
 
-static ssize_t hwfifo_watermark_min_show(struct device *dev,
-					 struct device_attribute *attr,
-					 char *buf)
-{
-	return sysfs_emit(buf, "%s\n", "1");
-}
-
-static ssize_t hwfifo_watermark_max_show(struct device *dev,
-					 struct device_attribute *attr,
-					 char *buf)
-{
-	return sysfs_emit(buf, "%s\n", __stringify(ADXL367_FIFO_MAX_WATERMARK));
-}
-
-static IIO_DEVICE_ATTR_RO(hwfifo_watermark_min, 0);
-static IIO_DEVICE_ATTR_RO(hwfifo_watermark_max, 0);
+IIO_STATIC_CONST_DEVICE_ATTR(hwfifo_watermark_min, "1");
+IIO_STATIC_CONST_DEVICE_ATTR(hwfifo_watermark_max,
+			     __stringify(ADXL367_FIFO_MAX_WATERMARK));
 static IIO_DEVICE_ATTR(hwfifo_watermark, 0444,
 		       adxl367_get_fifo_watermark, NULL, 0);
 static IIO_DEVICE_ATTR(hwfifo_enabled, 0444,
 		       adxl367_get_fifo_enabled, NULL, 0);
 
-static const struct attribute *adxl367_fifo_attributes[] = {
-	&iio_dev_attr_hwfifo_watermark_min.dev_attr.attr,
-	&iio_dev_attr_hwfifo_watermark_max.dev_attr.attr,
-	&iio_dev_attr_hwfifo_watermark.dev_attr.attr,
-	&iio_dev_attr_hwfifo_enabled.dev_attr.attr,
+static const struct iio_dev_attr *adxl367_fifo_attributes[] = {
+	&iio_dev_attr_hwfifo_watermark_min,
+	&iio_dev_attr_hwfifo_watermark_max,
+	&iio_dev_attr_hwfifo_watermark,
+	&iio_dev_attr_hwfifo_enabled,
 	NULL,
 };
 
@@ -1487,16 +1472,10 @@ static int adxl367_setup(struct adxl367_state *st)
 	return adxl367_set_measure_en(st, true);
 }
 
-static void adxl367_disable_regulators(void *data)
-{
-	struct adxl367_state *st = data;
-
-	regulator_bulk_disable(ARRAY_SIZE(st->regulators), st->regulators);
-}
-
 int adxl367_probe(struct device *dev, const struct adxl367_ops *ops,
 		  void *context, struct regmap *regmap, int irq)
 {
+	static const char * const regulator_names[] = { "vdd", "vddio" };
 	struct iio_dev *indio_dev;
 	struct adxl367_state *st;
 	int ret;
@@ -1520,25 +1499,13 @@ int adxl367_probe(struct device *dev, const struct adxl367_ops *ops,
 	indio_dev->info = &adxl367_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
-	st->regulators[0].supply = "vdd";
-	st->regulators[1].supply = "vddio";
-
-	ret = devm_regulator_bulk_get(st->dev, ARRAY_SIZE(st->regulators),
-				      st->regulators);
+	ret = devm_regulator_bulk_get_enable(st->dev,
+					     ARRAY_SIZE(regulator_names),
+					     regulator_names);
 	if (ret)
 		return dev_err_probe(st->dev, ret,
 				     "Failed to get regulators\n");
 
-	ret = regulator_bulk_enable(ARRAY_SIZE(st->regulators), st->regulators);
-	if (ret)
-		return dev_err_probe(st->dev, ret,
-				     "Failed to enable regulators\n");
-
-	ret = devm_add_action_or_reset(st->dev, adxl367_disable_regulators, st);
-	if (ret)
-		return dev_err_probe(st->dev, ret,
-				     "Failed to add regulators disable action\n");
-
 	ret = regmap_write(st->regmap, ADXL367_REG_RESET, ADXL367_RESET_CODE);
 	if (ret)
 		return ret;
diff --git a/drivers/iio/accel/adxl367_i2c.c b/drivers/iio/accel/adxl367_i2c.c
index 3606efa25835..070aad724abd 100644
--- a/drivers/iio/accel/adxl367_i2c.c
+++ b/drivers/iio/accel/adxl367_i2c.c
@@ -41,8 +41,7 @@ static const struct adxl367_ops adxl367_i2c_ops = {
 	.read_fifo = adxl367_i2c_read_fifo,
 };
 
-static int adxl367_i2c_probe(struct i2c_client *client,
-			     const struct i2c_device_id *id)
+static int adxl367_i2c_probe(struct i2c_client *client)
 {
 	struct adxl367_i2c_state *st;
 	struct regmap *regmap;
@@ -78,7 +77,7 @@ static struct i2c_driver adxl367_i2c_driver = {
 		.name = "adxl367_i2c",
 		.of_match_table = adxl367_of_match,
 	},
-	.probe = adxl367_i2c_probe,
+	.probe_new = adxl367_i2c_probe,
 	.id_table = adxl367_i2c_id,
 };
 
diff --git a/drivers/iio/accel/adxl372.c b/drivers/iio/accel/adxl372.c
index bc53af809d5d..c4193286eb05 100644
--- a/drivers/iio/accel/adxl372.c
+++ b/drivers/iio/accel/adxl372.c
@@ -998,32 +998,19 @@ static ssize_t adxl372_get_fifo_watermark(struct device *dev,
 	return sprintf(buf, "%d\n", st->watermark);
 }
 
-static ssize_t hwfifo_watermark_min_show(struct device *dev,
-					 struct device_attribute *attr,
-					 char *buf)
-{
-	return sysfs_emit(buf, "%s\n", "1");
-}
-
-static ssize_t hwfifo_watermark_max_show(struct device *dev,
-					 struct device_attribute *attr,
-					 char *buf)
-{
-	return sysfs_emit(buf, "%s\n", __stringify(ADXL372_FIFO_SIZE));
-}
-
-static IIO_DEVICE_ATTR_RO(hwfifo_watermark_min, 0);
-static IIO_DEVICE_ATTR_RO(hwfifo_watermark_max, 0);
+IIO_STATIC_CONST_DEVICE_ATTR(hwfifo_watermark_min, "1");
+IIO_STATIC_CONST_DEVICE_ATTR(hwfifo_watermark_max,
+			     __stringify(ADXL372_FIFO_SIZE));
 static IIO_DEVICE_ATTR(hwfifo_watermark, 0444,
 		       adxl372_get_fifo_watermark, NULL, 0);
 static IIO_DEVICE_ATTR(hwfifo_enabled, 0444,
 		       adxl372_get_fifo_enabled, NULL, 0);
 
-static const struct attribute *adxl372_fifo_attributes[] = {
-	&iio_dev_attr_hwfifo_watermark_min.dev_attr.attr,
-	&iio_dev_attr_hwfifo_watermark_max.dev_attr.attr,
-	&iio_dev_attr_hwfifo_watermark.dev_attr.attr,
-	&iio_dev_attr_hwfifo_enabled.dev_attr.attr,
+static const struct iio_dev_attr *adxl372_fifo_attributes[] = {
+	&iio_dev_attr_hwfifo_watermark_min,
+	&iio_dev_attr_hwfifo_watermark_max,
+	&iio_dev_attr_hwfifo_watermark,
+	&iio_dev_attr_hwfifo_enabled,
 	NULL,
 };
 
diff --git a/drivers/iio/accel/adxl372_i2c.c b/drivers/iio/accel/adxl372_i2c.c
index 4efb70a5fe40..e5f310ea65ff 100644
--- a/drivers/iio/accel/adxl372_i2c.c
+++ b/drivers/iio/accel/adxl372_i2c.c
@@ -18,9 +18,9 @@ static const struct regmap_config adxl372_regmap_config = {
 	.readable_noinc_reg = adxl372_readable_noinc_reg,
 };
 
-static int adxl372_i2c_probe(struct i2c_client *client,
-			     const struct i2c_device_id *id)
+static int adxl372_i2c_probe(struct i2c_client *client)
 {
+	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	struct regmap *regmap;
 	unsigned int regval;
 	int ret;
@@ -58,7 +58,7 @@ static struct i2c_driver adxl372_i2c_driver = {
 		.name = "adxl372_i2c",
 		.of_match_table = adxl372_of_match,
 	},
-	.probe = adxl372_i2c_probe,
+	.probe_new = adxl372_i2c_probe,
 	.id_table = adxl372_i2c_id,
 };
 
diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index d03fc3400f94..eb697eeb4301 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -921,9 +921,9 @@ static const struct iio_trigger_ops bma180_trigger_ops = {
 	.reenable = bma180_trig_reen,
 };
 
-static int bma180_probe(struct i2c_client *client,
-		const struct i2c_device_id *id)
+static int bma180_probe(struct i2c_client *client)
 {
+	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	struct device *dev = &client->dev;
 	struct bma180_data *data;
 	struct iio_dev *indio_dev;
@@ -1134,7 +1134,7 @@ static struct i2c_driver bma180_driver = {
 		.pm	= pm_sleep_ptr(&bma180_pm_ops),
 		.of_match_table = bma180_of_match,
 	},
-	.probe		= bma180_probe,
+	.probe_new	= bma180_probe,
 	.remove		= bma180_remove,
 	.id_table	= bma180_ids,
 };
diff --git a/drivers/iio/accel/bma400_core.c b/drivers/iio/accel/bma400_core.c
index 6e4d10a7cd32..b612d0146d4d 100644
--- a/drivers/iio/accel/bma400_core.c
+++ b/drivers/iio/accel/bma400_core.c
@@ -876,14 +876,10 @@ static int bma400_init(struct bma400_data *data)
 	ret = devm_regulator_bulk_get(data->dev,
 				      ARRAY_SIZE(data->regulators),
 				      data->regulators);
-	if (ret) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(data->dev,
-				"Failed to get regulators: %d\n",
-				ret);
+	if (ret)
+		return dev_err_probe(data->dev, ret, "Failed to get regulators: %d\n",
+				     ret);
 
-		return ret;
-	}
 	ret = regulator_bulk_enable(ARRAY_SIZE(data->regulators),
 				    data->regulators);
 	if (ret) {
diff --git a/drivers/iio/accel/bma400_i2c.c b/drivers/iio/accel/bma400_i2c.c
index 1ba2a982ea73..688b06dae669 100644
--- a/drivers/iio/accel/bma400_i2c.c
+++ b/drivers/iio/accel/bma400_i2c.c
@@ -13,9 +13,9 @@
 
 #include "bma400.h"
 
-static int bma400_i2c_probe(struct i2c_client *client,
-			    const struct i2c_device_id *id)
+static int bma400_i2c_probe(struct i2c_client *client)
 {
+	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	struct regmap *regmap;
 
 	regmap = devm_regmap_init_i2c(client, &bma400_regmap_config);
@@ -44,7 +44,7 @@ static struct i2c_driver bma400_i2c_driver = {
 		.name = "bma400",
 		.of_match_table = bma400_of_i2c_match,
 	},
-	.probe    = bma400_i2c_probe,
+	.probe_new = bma400_i2c_probe,
 	.id_table = bma400_i2c_ids,
 };
 
diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c
index 92f8b139acce..110591804b4c 100644
--- a/drivers/iio/accel/bmc150-accel-core.c
+++ b/drivers/iio/accel/bmc150-accel-core.c
@@ -925,32 +925,19 @@ static const struct iio_chan_spec_ext_info bmc150_accel_ext_info[] = {
 	{ }
 };
 
-static ssize_t hwfifo_watermark_min_show(struct device *dev,
-					 struct device_attribute *attr,
-					 char *buf)
-{
-	return sysfs_emit(buf, "%s\n", "1");
-}
-
-static ssize_t hwfifo_watermark_max_show(struct device *dev,
-					 struct device_attribute *attr,
-					 char *buf)
-{
-	return sysfs_emit(buf, "%s\n", __stringify(BMC150_ACCEL_FIFO_LENGTH));
-}
-
-static IIO_DEVICE_ATTR_RO(hwfifo_watermark_min, 0);
-static IIO_DEVICE_ATTR_RO(hwfifo_watermark_max, 0);
+IIO_STATIC_CONST_DEVICE_ATTR(hwfifo_watermark_min, "1");
+IIO_STATIC_CONST_DEVICE_ATTR(hwfifo_watermark_max,
+			     __stringify(BMC150_ACCEL_FIFO_LENGTH));
 static IIO_DEVICE_ATTR(hwfifo_enabled, S_IRUGO,
 		       bmc150_accel_get_fifo_state, NULL, 0);
 static IIO_DEVICE_ATTR(hwfifo_watermark, S_IRUGO,
 		       bmc150_accel_get_fifo_watermark, NULL, 0);
 
-static const struct attribute *bmc150_accel_fifo_attributes[] = {
-	&iio_dev_attr_hwfifo_watermark_min.dev_attr.attr,
-	&iio_dev_attr_hwfifo_watermark_max.dev_attr.attr,
-	&iio_dev_attr_hwfifo_watermark.dev_attr.attr,
-	&iio_dev_attr_hwfifo_enabled.dev_attr.attr,
+static const struct iio_dev_attr *bmc150_accel_fifo_attributes[] = {
+	&iio_dev_attr_hwfifo_watermark_min,
+	&iio_dev_attr_hwfifo_watermark_max,
+	&iio_dev_attr_hwfifo_watermark,
+	&iio_dev_attr_hwfifo_enabled,
 	NULL,
 };
 
@@ -1678,7 +1665,7 @@ int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq,
 			    enum bmc150_type type, const char *name,
 			    bool block_supported)
 {
-	const struct attribute **fifo_attrs;
+	const struct iio_dev_attr **fifo_attrs;
 	struct bmc150_accel_data *data;
 	struct iio_dev *indio_dev;
 	int ret;
diff --git a/drivers/iio/accel/bmc150-accel-i2c.c b/drivers/iio/accel/bmc150-accel-i2c.c
index be8cc598b88e..509cab2bd694 100644
--- a/drivers/iio/accel/bmc150-accel-i2c.c
+++ b/drivers/iio/accel/bmc150-accel-i2c.c
@@ -171,9 +171,9 @@ static void bmc150_acpi_dual_accel_probe(struct i2c_client *client) {}
 static void bmc150_acpi_dual_accel_remove(struct i2c_client *client) {}
 #endif
 
-static int bmc150_accel_probe(struct i2c_client *client,
-			      const struct i2c_device_id *id)
+static int bmc150_accel_probe(struct i2c_client *client)
 {
+	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	struct regmap *regmap;
 	const char *name = NULL;
 	enum bmc150_type type = BOSCH_UNKNOWN;
@@ -269,7 +269,7 @@ static struct i2c_driver bmc150_accel_driver = {
 		.acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match),
 		.pm	= &bmc150_accel_pm_ops,
 	},
-	.probe		= bmc150_accel_probe,
+	.probe_new	= bmc150_accel_probe,
 	.remove		= bmc150_accel_remove,
 	.id_table	= bmc150_accel_id,
 };
diff --git a/drivers/iio/accel/da280.c b/drivers/iio/accel/da280.c
index 04e9c5678964..38a7d811610e 100644
--- a/drivers/iio/accel/da280.c
+++ b/drivers/iio/accel/da280.c
@@ -105,9 +105,9 @@ static void da280_disable(void *client)
 	da280_enable(client, false);
 }
 
-static int da280_probe(struct i2c_client *client,
-			const struct i2c_device_id *id)
+static int da280_probe(struct i2c_client *client)
 {
+	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	int ret;
 	struct iio_dev *indio_dev;
 	struct da280_data *data;
@@ -184,7 +184,7 @@ static struct i2c_driver da280_driver = {
 		.acpi_match_table = ACPI_PTR(da280_acpi_match),
 		.pm = pm_sleep_ptr(&da280_pm_ops),
 	},
-	.probe		= da280_probe,
+	.probe_new	= da280_probe,
 	.id_table	= da280_i2c_id,
 };
 
diff --git a/drivers/iio/accel/da311.c b/drivers/iio/accel/da311.c
index ec4e29d260f7..080335fa2ad6 100644
--- a/drivers/iio/accel/da311.c
+++ b/drivers/iio/accel/da311.c
@@ -217,8 +217,7 @@ static void da311_disable(void *client)
 	da311_enable(client, false);
 }
 
-static int da311_probe(struct i2c_client *client,
-			const struct i2c_device_id *id)
+static int da311_probe(struct i2c_client *client)
 {
 	int ret;
 	struct iio_dev *indio_dev;
@@ -279,7 +278,7 @@ static struct i2c_driver da311_driver = {
 		.name = "da311",
 		.pm = pm_sleep_ptr(&da311_pm_ops),
 	},
-	.probe		= da311_probe,
+	.probe_new	= da311_probe,
 	.id_table	= da311_i2c_id,
 };
 
diff --git a/drivers/iio/accel/dmard06.c b/drivers/iio/accel/dmard06.c
index 4b69c8530f5e..7390509aaac0 100644
--- a/drivers/iio/accel/dmard06.c
+++ b/drivers/iio/accel/dmard06.c
@@ -125,8 +125,7 @@ static const struct iio_info dmard06_info = {
 	.read_raw	= dmard06_read_raw,
 };
 
-static int dmard06_probe(struct i2c_client *client,
-			const struct i2c_device_id *id)
+static int dmard06_probe(struct i2c_client *client)
 {
 	int ret;
 	struct iio_dev *indio_dev;
@@ -218,7 +217,7 @@ static const struct of_device_id dmard06_of_match[] = {
 MODULE_DEVICE_TABLE(of, dmard06_of_match);
 
 static struct i2c_driver dmard06_driver = {
-	.probe = dmard06_probe,
+	.probe_new = dmard06_probe,
 	.id_table = dmard06_id,
 	.driver = {
 		.name = DMARD06_DRV_NAME,
diff --git a/drivers/iio/accel/dmard09.c b/drivers/iio/accel/dmard09.c
index cb0246ca72f3..4b7a537f617d 100644
--- a/drivers/iio/accel/dmard09.c
+++ b/drivers/iio/accel/dmard09.c
@@ -88,8 +88,7 @@ static const struct iio_info dmard09_info = {
 	.read_raw	= dmard09_read_raw,
 };
 
-static int dmard09_probe(struct i2c_client *client,
-			const struct i2c_device_id *id)
+static int dmard09_probe(struct i2c_client *client)
 {
 	int ret;
 	struct iio_dev *indio_dev;
@@ -136,7 +135,7 @@ static struct i2c_driver dmard09_driver = {
 	.driver = {
 		.name = DMARD09_DRV_NAME
 	},
-	.probe = dmard09_probe,
+	.probe_new = dmard09_probe,
 	.id_table = dmard09_id,
 };
 
diff --git a/drivers/iio/accel/dmard10.c b/drivers/iio/accel/dmard10.c
index 8ac62ec0a04a..07e68aed8a13 100644
--- a/drivers/iio/accel/dmard10.c
+++ b/drivers/iio/accel/dmard10.c
@@ -175,8 +175,7 @@ static void dmard10_shutdown_cleanup(void *client)
 	dmard10_shutdown(client);
 }
 
-static int dmard10_probe(struct i2c_client *client,
-			const struct i2c_device_id *id)
+static int dmard10_probe(struct i2c_client *client)
 {
 	int ret;
 	struct iio_dev *indio_dev;
@@ -242,7 +241,7 @@ static struct i2c_driver dmard10_driver = {
 		.name = "dmard10",
 		.pm = pm_sleep_ptr(&dmard10_pm_ops),
 	},
-	.probe		= dmard10_probe,
+	.probe_new	= dmard10_probe,
 	.id_table	= dmard10_i2c_id,
 };
 
diff --git a/drivers/iio/accel/fxls8962af-core.c b/drivers/iio/accel/fxls8962af-core.c
index 8874d6d61725..0d672b1469e8 100644
--- a/drivers/iio/accel/fxls8962af-core.c
+++ b/drivers/iio/accel/fxls8962af-core.c
@@ -159,7 +159,6 @@ struct fxls8962af_chip_info {
 struct fxls8962af_data {
 	struct regmap *regmap;
 	const struct fxls8962af_chip_info *chip_info;
-	struct regulator *vdd_reg;
 	struct {
 		__le16 channels[3];
 		s64 ts __aligned(8);
@@ -1051,13 +1050,6 @@ static irqreturn_t fxls8962af_interrupt(int irq, void *p)
 	return IRQ_NONE;
 }
 
-static void fxls8962af_regulator_disable(void *data_ptr)
-{
-	struct fxls8962af_data *data = data_ptr;
-
-	regulator_disable(data->vdd_reg);
-}
-
 static void fxls8962af_pm_disable(void *dev_ptr)
 {
 	struct device *dev = dev_ptr;
@@ -1171,20 +1163,10 @@ int fxls8962af_core_probe(struct device *dev, struct regmap *regmap, int irq)
 	if (ret)
 		return ret;
 
-	data->vdd_reg = devm_regulator_get(dev, "vdd");
-	if (IS_ERR(data->vdd_reg))
-		return dev_err_probe(dev, PTR_ERR(data->vdd_reg),
-				     "Failed to get vdd regulator\n");
-
-	ret = regulator_enable(data->vdd_reg);
-	if (ret) {
-		dev_err(dev, "Failed to enable vdd regulator: %d\n", ret);
-		return ret;
-	}
-
-	ret = devm_add_action_or_reset(dev, fxls8962af_regulator_disable, data);
+	ret = devm_regulator_get_enable(dev, "vdd");
 	if (ret)
-		return ret;
+		return dev_err_probe(dev, ret,
+				     "Failed to get vdd regulator\n");
 
 	ret = regmap_read(data->regmap, FXLS8962AF_WHO_AM_I, &reg);
 	if (ret)
@@ -1241,7 +1223,7 @@ int fxls8962af_core_probe(struct device *dev, struct regmap *regmap, int irq)
 }
 EXPORT_SYMBOL_NS_GPL(fxls8962af_core_probe, IIO_FXLS8962AF);
 
-static int __maybe_unused fxls8962af_runtime_suspend(struct device *dev)
+static int fxls8962af_runtime_suspend(struct device *dev)
 {
 	struct fxls8962af_data *data = iio_priv(dev_get_drvdata(dev));
 	int ret;
@@ -1255,14 +1237,14 @@ static int __maybe_unused fxls8962af_runtime_suspend(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused fxls8962af_runtime_resume(struct device *dev)
+static int fxls8962af_runtime_resume(struct device *dev)
 {
 	struct fxls8962af_data *data = iio_priv(dev_get_drvdata(dev));
 
 	return fxls8962af_active(data);
 }
 
-static int __maybe_unused fxls8962af_suspend(struct device *dev)
+static int fxls8962af_suspend(struct device *dev)
 {
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct fxls8962af_data *data = iio_priv(indio_dev);
@@ -1283,7 +1265,7 @@ static int __maybe_unused fxls8962af_suspend(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused fxls8962af_resume(struct device *dev)
+static int fxls8962af_resume(struct device *dev)
 {
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct fxls8962af_data *data = iio_priv(indio_dev);
@@ -1300,12 +1282,10 @@ static int __maybe_unused fxls8962af_resume(struct device *dev)
 	return 0;
 }
 
-const struct dev_pm_ops fxls8962af_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(fxls8962af_suspend, fxls8962af_resume)
-	SET_RUNTIME_PM_OPS(fxls8962af_runtime_suspend,
-			   fxls8962af_runtime_resume, NULL)
+EXPORT_NS_GPL_DEV_PM_OPS(fxls8962af_pm_ops, IIO_FXLS8962AF) = {
+	SYSTEM_SLEEP_PM_OPS(fxls8962af_suspend, fxls8962af_resume)
+	RUNTIME_PM_OPS(fxls8962af_runtime_suspend, fxls8962af_runtime_resume, NULL)
 };
-EXPORT_SYMBOL_NS_GPL(fxls8962af_pm_ops, IIO_FXLS8962AF);
 
 MODULE_AUTHOR("Sean Nyekjaer <sean@geanix.com>");
 MODULE_DESCRIPTION("NXP FXLS8962AF/FXLS8964AF accelerometer driver");
diff --git a/drivers/iio/accel/fxls8962af-i2c.c b/drivers/iio/accel/fxls8962af-i2c.c
index 8fbadfea1620..22640eaebac7 100644
--- a/drivers/iio/accel/fxls8962af-i2c.c
+++ b/drivers/iio/accel/fxls8962af-i2c.c
@@ -45,7 +45,7 @@ static struct i2c_driver fxls8962af_driver = {
 	.driver = {
 		   .name = "fxls8962af_i2c",
 		   .of_match_table = fxls8962af_of_match,
-		   .pm = &fxls8962af_pm_ops,
+		   .pm = pm_ptr(&fxls8962af_pm_ops),
 		   },
 	.probe_new = fxls8962af_probe,
 	.id_table = fxls8962af_id,
diff --git a/drivers/iio/accel/fxls8962af-spi.c b/drivers/iio/accel/fxls8962af-spi.c
index 885b3ab7fcb5..a0d192211839 100644
--- a/drivers/iio/accel/fxls8962af-spi.c
+++ b/drivers/iio/accel/fxls8962af-spi.c
@@ -44,7 +44,7 @@ MODULE_DEVICE_TABLE(spi, fxls8962af_spi_id_table);
 static struct spi_driver fxls8962af_driver = {
 	.driver = {
 		   .name = "fxls8962af_spi",
-		   .pm = &fxls8962af_pm_ops,
+		   .pm = pm_ptr(&fxls8962af_pm_ops),
 		   .of_match_table = fxls8962af_spi_of_match,
 		   },
 	.probe = fxls8962af_probe,
diff --git a/drivers/iio/accel/kionix-kx022a-i2c.c b/drivers/iio/accel/kionix-kx022a-i2c.c
new file mode 100644
index 000000000000..e6fd02d931b6
--- /dev/null
+++ b/drivers/iio/accel/kionix-kx022a-i2c.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2022 ROHM Semiconductors
+ *
+ * ROHM/KIONIX KX022A accelerometer driver
+ */
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+#include "kionix-kx022a.h"
+
+static int kx022a_i2c_probe(struct i2c_client *i2c)
+{
+	struct device *dev = &i2c->dev;
+	struct regmap *regmap;
+
+	if (!i2c->irq) {
+		dev_err(dev, "No IRQ configured\n");
+		return -EINVAL;
+	}
+
+	regmap = devm_regmap_init_i2c(i2c, &kx022a_regmap);
+	if (IS_ERR(regmap))
+		return dev_err_probe(dev, PTR_ERR(regmap),
+				     "Failed to initialize Regmap\n");
+
+	return kx022a_probe_internal(dev);
+}
+
+static const struct of_device_id kx022a_of_match[] = {
+	{ .compatible = "kionix,kx022a", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, kx022a_of_match);
+
+static struct i2c_driver kx022a_i2c_driver = {
+	.driver = {
+		.name  = "kx022a-i2c",
+		.of_match_table = kx022a_of_match,
+	  },
+	.probe_new    = kx022a_i2c_probe,
+};
+module_i2c_driver(kx022a_i2c_driver);
+
+MODULE_DESCRIPTION("ROHM/Kionix KX022A accelerometer driver");
+MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(IIO_KX022A);
diff --git a/drivers/iio/accel/kionix-kx022a-spi.c b/drivers/iio/accel/kionix-kx022a-spi.c
new file mode 100644
index 000000000000..9cd047f7b346
--- /dev/null
+++ b/drivers/iio/accel/kionix-kx022a-spi.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2022 ROHM Semiconductors
+ *
+ * ROHM/KIONIX KX022A accelerometer driver
+ */
+
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+
+#include "kionix-kx022a.h"
+
+static int kx022a_spi_probe(struct spi_device *spi)
+{
+	struct device *dev = &spi->dev;
+	struct regmap *regmap;
+
+	if (!spi->irq) {
+		dev_err(dev, "No IRQ configured\n");
+		return -EINVAL;
+	}
+
+	regmap = devm_regmap_init_spi(spi, &kx022a_regmap);
+	if (IS_ERR(regmap))
+		return dev_err_probe(dev, PTR_ERR(regmap),
+				     "Failed to initialize Regmap\n");
+
+	return kx022a_probe_internal(dev);
+}
+
+static const struct spi_device_id kx022a_id[] = {
+	{ "kx022a" },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, kx022a_id);
+
+static const struct of_device_id kx022a_of_match[] = {
+	{ .compatible = "kionix,kx022a", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, kx022a_of_match);
+
+static struct spi_driver kx022a_spi_driver = {
+	.driver = {
+		.name   = "kx022a-spi",
+		.of_match_table = kx022a_of_match,
+	},
+	.probe = kx022a_spi_probe,
+	.id_table = kx022a_id,
+};
+module_spi_driver(kx022a_spi_driver);
+
+MODULE_DESCRIPTION("ROHM/Kionix kx022A accelerometer driver");
+MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(IIO_KX022A);
diff --git a/drivers/iio/accel/kionix-kx022a.c b/drivers/iio/accel/kionix-kx022a.c
new file mode 100644
index 000000000000..f866859855cd
--- /dev/null
+++ b/drivers/iio/accel/kionix-kx022a.c
@@ -0,0 +1,1142 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2022 ROHM Semiconductors
+ *
+ * ROHM/KIONIX KX022A accelerometer driver
+ */
+
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/mutex.h>
+#include <linux/property.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/string_helpers.h>
+#include <linux/units.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+
+#include "kionix-kx022a.h"
+
+/*
+ * The KX022A has FIFO which can store 43 samples of HiRes data from 2
+ * channels. This equals to 43 (samples) * 3 (channels) * 2 (bytes/sample) to
+ * 258 bytes of sample data. The quirk to know is that the amount of bytes in
+ * the FIFO is advertised via 8 bit register (max value 255). The thing to note
+ * is that full 258 bytes of data is indicated using the max value 255.
+ */
+#define KX022A_FIFO_LENGTH			43
+#define KX022A_FIFO_FULL_VALUE			255
+#define KX022A_SOFT_RESET_WAIT_TIME_US		(5 * USEC_PER_MSEC)
+#define KX022A_SOFT_RESET_TOTAL_WAIT_TIME_US	(500 * USEC_PER_MSEC)
+
+/* 3 axis, 2 bytes of data for each of the axis */
+#define KX022A_FIFO_SAMPLES_SIZE_BYTES		6
+#define KX022A_FIFO_MAX_BYTES					\
+	(KX022A_FIFO_LENGTH * KX022A_FIFO_SAMPLES_SIZE_BYTES)
+
+enum {
+	KX022A_STATE_SAMPLE,
+	KX022A_STATE_FIFO,
+};
+
+/* Regmap configs */
+static const struct regmap_range kx022a_volatile_ranges[] = {
+	{
+		.range_min = KX022A_REG_XHP_L,
+		.range_max = KX022A_REG_COTR,
+	}, {
+		.range_min = KX022A_REG_TSCP,
+		.range_max = KX022A_REG_INT_REL,
+	}, {
+		/* The reset bit will be cleared by sensor */
+		.range_min = KX022A_REG_CNTL2,
+		.range_max = KX022A_REG_CNTL2,
+	}, {
+		.range_min = KX022A_REG_BUF_STATUS_1,
+		.range_max = KX022A_REG_BUF_READ,
+	},
+};
+
+static const struct regmap_access_table kx022a_volatile_regs = {
+	.yes_ranges = &kx022a_volatile_ranges[0],
+	.n_yes_ranges = ARRAY_SIZE(kx022a_volatile_ranges),
+};
+
+static const struct regmap_range kx022a_precious_ranges[] = {
+	{
+		.range_min = KX022A_REG_INT_REL,
+		.range_max = KX022A_REG_INT_REL,
+	},
+};
+
+static const struct regmap_access_table kx022a_precious_regs = {
+	.yes_ranges = &kx022a_precious_ranges[0],
+	.n_yes_ranges = ARRAY_SIZE(kx022a_precious_ranges),
+};
+
+/*
+ * The HW does not set WHO_AM_I reg as read-only but we don't want to write it
+ * so we still include it in the read-only ranges.
+ */
+static const struct regmap_range kx022a_read_only_ranges[] = {
+	{
+		.range_min = KX022A_REG_XHP_L,
+		.range_max = KX022A_REG_INT_REL,
+	}, {
+		.range_min = KX022A_REG_BUF_STATUS_1,
+		.range_max = KX022A_REG_BUF_STATUS_2,
+	}, {
+		.range_min = KX022A_REG_BUF_READ,
+		.range_max = KX022A_REG_BUF_READ,
+	},
+};
+
+static const struct regmap_access_table kx022a_ro_regs = {
+	.no_ranges = &kx022a_read_only_ranges[0],
+	.n_no_ranges = ARRAY_SIZE(kx022a_read_only_ranges),
+};
+
+static const struct regmap_range kx022a_write_only_ranges[] = {
+	{
+		.range_min = KX022A_REG_BTS_WUF_TH,
+		.range_max = KX022A_REG_BTS_WUF_TH,
+	}, {
+		.range_min = KX022A_REG_MAN_WAKE,
+		.range_max = KX022A_REG_MAN_WAKE,
+	}, {
+		.range_min = KX022A_REG_SELF_TEST,
+		.range_max = KX022A_REG_SELF_TEST,
+	}, {
+		.range_min = KX022A_REG_BUF_CLEAR,
+		.range_max = KX022A_REG_BUF_CLEAR,
+	},
+};
+
+static const struct regmap_access_table kx022a_wo_regs = {
+	.no_ranges = &kx022a_write_only_ranges[0],
+	.n_no_ranges = ARRAY_SIZE(kx022a_write_only_ranges),
+};
+
+static const struct regmap_range kx022a_noinc_read_ranges[] = {
+	{
+		.range_min = KX022A_REG_BUF_READ,
+		.range_max = KX022A_REG_BUF_READ,
+	},
+};
+
+static const struct regmap_access_table kx022a_nir_regs = {
+	.yes_ranges = &kx022a_noinc_read_ranges[0],
+	.n_yes_ranges = ARRAY_SIZE(kx022a_noinc_read_ranges),
+};
+
+const struct regmap_config kx022a_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.volatile_table = &kx022a_volatile_regs,
+	.rd_table = &kx022a_wo_regs,
+	.wr_table = &kx022a_ro_regs,
+	.rd_noinc_table = &kx022a_nir_regs,
+	.precious_table = &kx022a_precious_regs,
+	.max_register = KX022A_MAX_REGISTER,
+	.cache_type = REGCACHE_RBTREE,
+};
+EXPORT_SYMBOL_NS_GPL(kx022a_regmap, IIO_KX022A);
+
+struct kx022a_data {
+	struct regmap *regmap;
+	struct iio_trigger *trig;
+	struct device *dev;
+	struct iio_mount_matrix orientation;
+	int64_t timestamp, old_timestamp;
+
+	int irq;
+	int inc_reg;
+	int ien_reg;
+
+	unsigned int g_range;
+	unsigned int state;
+	unsigned int odr_ns;
+
+	bool trigger_enabled;
+	/*
+	 * Prevent toggling the sensor stby/active state (PC1 bit) in the
+	 * middle of a configuration, or when the fifo is enabled. Also,
+	 * protect the data stored/retrieved from this structure from
+	 * concurrent accesses.
+	 */
+	struct mutex mutex;
+	u8 watermark;
+
+	/* 3 x 16bit accel data + timestamp */
+	__le16 buffer[8] __aligned(IIO_DMA_MINALIGN);
+	struct {
+		__le16 channels[3];
+		s64 ts __aligned(8);
+	} scan;
+};
+
+static const struct iio_mount_matrix *
+kx022a_get_mount_matrix(const struct iio_dev *idev,
+			const struct iio_chan_spec *chan)
+{
+	struct kx022a_data *data = iio_priv(idev);
+
+	return &data->orientation;
+}
+
+enum {
+	AXIS_X,
+	AXIS_Y,
+	AXIS_Z,
+	AXIS_MAX
+};
+
+static const unsigned long kx022a_scan_masks[] = {
+	BIT(AXIS_X) | BIT(AXIS_Y) | BIT(AXIS_Z), 0
+};
+
+static const struct iio_chan_spec_ext_info kx022a_ext_info[] = {
+	IIO_MOUNT_MATRIX(IIO_SHARED_BY_TYPE, kx022a_get_mount_matrix),
+	{ }
+};
+
+#define KX022A_ACCEL_CHAN(axis, index)				\
+{								\
+	.type = IIO_ACCEL,					\
+	.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_SAMP_FREQ),	\
+	.info_mask_shared_by_type_available =			\
+				BIT(IIO_CHAN_INFO_SCALE) |	\
+				BIT(IIO_CHAN_INFO_SAMP_FREQ),	\
+	.ext_info = kx022a_ext_info,				\
+	.address = KX022A_REG_##axis##OUT_L,			\
+	.scan_index = index,					\
+	.scan_type = {                                          \
+		.sign = 's',					\
+		.realbits = 16,					\
+		.storagebits = 16,				\
+		.endianness = IIO_LE,				\
+	},							\
+}
+
+static const struct iio_chan_spec kx022a_channels[] = {
+	KX022A_ACCEL_CHAN(X, 0),
+	KX022A_ACCEL_CHAN(Y, 1),
+	KX022A_ACCEL_CHAN(Z, 2),
+	IIO_CHAN_SOFT_TIMESTAMP(3),
+};
+
+/*
+ * The sensor HW can support ODR up to 1600 Hz, which is beyond what most of the
+ * Linux CPUs can handle without dropping samples. Also, the low power mode is
+ * not available for higher sample rates. Thus, the driver only supports 200 Hz
+ * and slower ODRs. The slowest is 0.78 Hz.
+ */
+static const int kx022a_accel_samp_freq_table[][2] = {
+	{ 0, 780000 },
+	{ 1, 563000 },
+	{ 3, 125000 },
+	{ 6, 250000 },
+	{ 12, 500000 },
+	{ 25, 0 },
+	{ 50, 0 },
+	{ 100, 0 },
+	{ 200, 0 },
+};
+
+static const unsigned int kx022a_odrs[] = {
+	1282051282,
+	639795266,
+	320 * MEGA,
+	160 * MEGA,
+	80 * MEGA,
+	40 * MEGA,
+	20 * MEGA,
+	10 * MEGA,
+	5 * MEGA,
+};
+
+/*
+ * range is typically +-2G/4G/8G/16G, distributed over the amount of bits.
+ * The scale table can be calculated using
+ *	(range / 2^bits) * g = (range / 2^bits) * 9.80665 m/s^2
+ *	=> KX022A uses 16 bit (HiRes mode - assume the low 8 bits are zeroed
+ *	in low-power mode(?) )
+ *	=> +/-2G  => 4 / 2^16 * 9,80665 * 10^6 (to scale to micro)
+ *	=> +/-2G  - 598.550415
+ *	   +/-4G  - 1197.10083
+ *	   +/-8G  - 2394.20166
+ *	   +/-16G - 4788.40332
+ */
+static const int kx022a_scale_table[][2] = {
+	{ 598, 550415 },
+	{ 1197, 100830 },
+	{ 2394, 201660 },
+	{ 4788, 403320 },
+};
+
+static int kx022a_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_SAMP_FREQ:
+		*vals = (const int *)kx022a_accel_samp_freq_table;
+		*length = ARRAY_SIZE(kx022a_accel_samp_freq_table) *
+			  ARRAY_SIZE(kx022a_accel_samp_freq_table[0]);
+		*type = IIO_VAL_INT_PLUS_MICRO;
+		return IIO_AVAIL_LIST;
+	case IIO_CHAN_INFO_SCALE:
+		*vals = (const int *)kx022a_scale_table;
+		*length = ARRAY_SIZE(kx022a_scale_table) *
+			  ARRAY_SIZE(kx022a_scale_table[0]);
+		*type = IIO_VAL_INT_PLUS_MICRO;
+		return IIO_AVAIL_LIST;
+	default:
+		return -EINVAL;
+	}
+}
+
+#define KX022A_DEFAULT_PERIOD_NS (20 * NSEC_PER_MSEC)
+
+static void kx022a_reg2freq(unsigned int val,  int *val1, int *val2)
+{
+	*val1 = kx022a_accel_samp_freq_table[val & KX022A_MASK_ODR][0];
+	*val2 = kx022a_accel_samp_freq_table[val & KX022A_MASK_ODR][1];
+}
+
+static void kx022a_reg2scale(unsigned int val, unsigned int *val1,
+			     unsigned int *val2)
+{
+	val &= KX022A_MASK_GSEL;
+	val >>= KX022A_GSEL_SHIFT;
+
+	*val1 = kx022a_scale_table[val][0];
+	*val2 = kx022a_scale_table[val][1];
+}
+
+static int kx022a_turn_on_off_unlocked(struct kx022a_data *data, bool on)
+{
+	int ret;
+
+	if (on)
+		ret = regmap_set_bits(data->regmap, KX022A_REG_CNTL,
+				      KX022A_MASK_PC1);
+	else
+		ret = regmap_clear_bits(data->regmap, KX022A_REG_CNTL,
+					KX022A_MASK_PC1);
+	if (ret)
+		dev_err(data->dev, "Turn %s fail %d\n", str_on_off(on), ret);
+
+	return ret;
+
+}
+
+static int kx022a_turn_off_lock(struct kx022a_data *data)
+{
+	int ret;
+
+	mutex_lock(&data->mutex);
+	ret = kx022a_turn_on_off_unlocked(data, false);
+	if (ret)
+		mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static int kx022a_turn_on_unlock(struct kx022a_data *data)
+{
+	int ret;
+
+	ret = kx022a_turn_on_off_unlocked(data, true);
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static int kx022a_write_raw(struct iio_dev *idev,
+			    struct iio_chan_spec const *chan,
+			    int val, int val2, long mask)
+{
+	struct kx022a_data *data = iio_priv(idev);
+	int ret, n;
+
+	/*
+	 * We should not allow changing scale or frequency when FIFO is running
+	 * as it will mess the timestamp/scale for samples existing in the
+	 * buffer. If this turns out to be an issue we can later change logic
+	 * to internally flush the fifo before reconfiguring so the samples in
+	 * fifo keep matching the freq/scale settings. (Such setup could cause
+	 * issues if users trust the watermark to be reached within known
+	 * time-limit).
+	 */
+	ret = iio_device_claim_direct_mode(idev);
+	if (ret)
+		return ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		n = ARRAY_SIZE(kx022a_accel_samp_freq_table);
+
+		while (n--)
+			if (val == kx022a_accel_samp_freq_table[n][0] &&
+			    val2 == kx022a_accel_samp_freq_table[n][1])
+				break;
+		if (n < 0) {
+			ret = -EINVAL;
+			goto unlock_out;
+		}
+		ret = kx022a_turn_off_lock(data);
+		if (ret)
+			break;
+
+		ret = regmap_update_bits(data->regmap,
+					 KX022A_REG_ODCNTL,
+					 KX022A_MASK_ODR, n);
+		data->odr_ns = kx022a_odrs[n];
+		kx022a_turn_on_unlock(data);
+		break;
+	case IIO_CHAN_INFO_SCALE:
+		n = ARRAY_SIZE(kx022a_scale_table);
+
+		while (n-- > 0)
+			if (val == kx022a_scale_table[n][0] &&
+			    val2 == kx022a_scale_table[n][1])
+				break;
+		if (n < 0) {
+			ret = -EINVAL;
+			goto unlock_out;
+		}
+
+		ret = kx022a_turn_off_lock(data);
+		if (ret)
+			break;
+
+		ret = regmap_update_bits(data->regmap, KX022A_REG_CNTL,
+					 KX022A_MASK_GSEL,
+					 n << KX022A_GSEL_SHIFT);
+		kx022a_turn_on_unlock(data);
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+unlock_out:
+	iio_device_release_direct_mode(idev);
+
+	return ret;
+}
+
+static int kx022a_fifo_set_wmi(struct kx022a_data *data)
+{
+	u8 threshold;
+
+	threshold = data->watermark;
+
+	return regmap_update_bits(data->regmap, KX022A_REG_BUF_CNTL1,
+				  KX022A_MASK_WM_TH, threshold);
+}
+
+static int kx022a_get_axis(struct kx022a_data *data,
+			   struct iio_chan_spec const *chan,
+			   int *val)
+{
+	int ret;
+
+	ret = regmap_bulk_read(data->regmap, chan->address, &data->buffer[0],
+			       sizeof(__le16));
+	if (ret)
+		return ret;
+
+	*val = le16_to_cpu(data->buffer[0]);
+
+	return IIO_VAL_INT;
+}
+
+static int kx022a_read_raw(struct iio_dev *idev,
+			   struct iio_chan_spec const *chan,
+			   int *val, int *val2, long mask)
+{
+	struct kx022a_data *data = iio_priv(idev);
+	unsigned int regval;
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		ret = iio_device_claim_direct_mode(idev);
+		if (ret)
+			return ret;
+
+		mutex_lock(&data->mutex);
+		ret = kx022a_get_axis(data, chan, val);
+		mutex_unlock(&data->mutex);
+
+		iio_device_release_direct_mode(idev);
+
+		return ret;
+
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		ret = regmap_read(data->regmap, KX022A_REG_ODCNTL, &regval);
+		if (ret)
+			return ret;
+
+		if ((regval & KX022A_MASK_ODR) >
+		    ARRAY_SIZE(kx022a_accel_samp_freq_table)) {
+			dev_err(data->dev, "Invalid ODR\n");
+			return -EINVAL;
+		}
+
+		kx022a_reg2freq(regval, val, val2);
+
+		return IIO_VAL_INT_PLUS_MICRO;
+
+	case IIO_CHAN_INFO_SCALE:
+		ret = regmap_read(data->regmap, KX022A_REG_CNTL, &regval);
+		if (ret < 0)
+			return ret;
+
+		kx022a_reg2scale(regval, val, val2);
+
+		return IIO_VAL_INT_PLUS_MICRO;
+	}
+
+	return -EINVAL;
+};
+
+static int kx022a_validate_trigger(struct iio_dev *idev,
+				   struct iio_trigger *trig)
+{
+	struct kx022a_data *data = iio_priv(idev);
+
+	if (data->trig != trig)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int kx022a_set_watermark(struct iio_dev *idev, unsigned int val)
+{
+	struct kx022a_data *data = iio_priv(idev);
+
+	if (val > KX022A_FIFO_LENGTH)
+		val = KX022A_FIFO_LENGTH;
+
+	mutex_lock(&data->mutex);
+	data->watermark = val;
+	mutex_unlock(&data->mutex);
+
+	return 0;
+}
+
+static ssize_t hwfifo_enabled_show(struct device *dev,
+				   struct device_attribute *attr,
+				   char *buf)
+{
+	struct iio_dev *idev = dev_to_iio_dev(dev);
+	struct kx022a_data *data = iio_priv(idev);
+	bool state;
+
+	mutex_lock(&data->mutex);
+	state = data->state;
+	mutex_unlock(&data->mutex);
+
+	return sysfs_emit(buf, "%d\n", state);
+}
+
+static ssize_t hwfifo_watermark_show(struct device *dev,
+				     struct device_attribute *attr,
+				     char *buf)
+{
+	struct iio_dev *idev = dev_to_iio_dev(dev);
+	struct kx022a_data *data = iio_priv(idev);
+	int wm;
+
+	mutex_lock(&data->mutex);
+	wm = data->watermark;
+	mutex_unlock(&data->mutex);
+
+	return sysfs_emit(buf, "%d\n", wm);
+}
+
+static IIO_DEVICE_ATTR_RO(hwfifo_enabled, 0);
+static IIO_DEVICE_ATTR_RO(hwfifo_watermark, 0);
+
+static const struct iio_dev_attr *kx022a_fifo_attributes[] = {
+	&iio_dev_attr_hwfifo_watermark,
+	&iio_dev_attr_hwfifo_enabled,
+	NULL
+};
+
+static int kx022a_drop_fifo_contents(struct kx022a_data *data)
+{
+	/*
+	 * We must clear the old time-stamp to avoid computing the timestamps
+	 * based on samples acquired when buffer was last enabled.
+	 *
+	 * We don't need to protect the timestamp as long as we are only
+	 * called from fifo-disable where we can guarantee the sensor is not
+	 * triggering interrupts and where the mutex is locked to prevent the
+	 * user-space access.
+	 */
+	data->timestamp = 0;
+
+	return regmap_write(data->regmap, KX022A_REG_BUF_CLEAR, 0x0);
+}
+
+static int __kx022a_fifo_flush(struct iio_dev *idev, unsigned int samples,
+			       bool irq)
+{
+	struct kx022a_data *data = iio_priv(idev);
+	struct device *dev = regmap_get_device(data->regmap);
+	__le16 buffer[KX022A_FIFO_LENGTH * 3];
+	uint64_t sample_period;
+	int count, fifo_bytes;
+	bool renable = false;
+	int64_t tstamp;
+	int ret, i;
+
+	ret = regmap_read(data->regmap, KX022A_REG_BUF_STATUS_1, &fifo_bytes);
+	if (ret) {
+		dev_err(dev, "Error reading buffer status\n");
+		return ret;
+	}
+
+	/* Let's not overflow if we for some reason get bogus value from i2c */
+	if (fifo_bytes == KX022A_FIFO_FULL_VALUE)
+		fifo_bytes = KX022A_FIFO_MAX_BYTES;
+
+	if (fifo_bytes % KX022A_FIFO_SAMPLES_SIZE_BYTES)
+		dev_warn(data->dev, "Bad FIFO alignment. Data may be corrupt\n");
+
+	count = fifo_bytes / KX022A_FIFO_SAMPLES_SIZE_BYTES;
+	if (!count)
+		return 0;
+
+	/*
+	 * If we are being called from IRQ handler we know the stored timestamp
+	 * is fairly accurate for the last stored sample. Otherwise, if we are
+	 * called as a result of a read operation from userspace and hence
+	 * before the watermark interrupt was triggered, take a timestamp
+	 * now. We can fall anywhere in between two samples so the error in this
+	 * case is at most one sample period.
+	 */
+	if (!irq) {
+		/*
+		 * We need to have the IRQ disabled or we risk of messing-up
+		 * the timestamps. If we are ran from IRQ, then the
+		 * IRQF_ONESHOT has us covered - but if we are ran by the
+		 * user-space read we need to disable the IRQ to be on a safe
+		 * side. We do this usng synchronous disable so that if the
+		 * IRQ thread is being ran on other CPU we wait for it to be
+		 * finished.
+		 */
+		disable_irq(data->irq);
+		renable = true;
+
+		data->old_timestamp = data->timestamp;
+		data->timestamp = iio_get_time_ns(idev);
+	}
+
+	/*
+	 * Approximate timestamps for each of the sample based on the sampling
+	 * frequency, timestamp for last sample and number of samples.
+	 *
+	 * We'd better not use the current bandwidth settings to compute the
+	 * sample period. The real sample rate varies with the device and
+	 * small variation adds when we store a large number of samples.
+	 *
+	 * To avoid this issue we compute the actual sample period ourselves
+	 * based on the timestamp delta between the last two flush operations.
+	 */
+	if (data->old_timestamp) {
+		sample_period = data->timestamp - data->old_timestamp;
+		do_div(sample_period, count);
+	} else {
+		sample_period = data->odr_ns;
+	}
+	tstamp = data->timestamp - (count - 1) * sample_period;
+
+	if (samples && count > samples) {
+		/*
+		 * Here we leave some old samples to the buffer. We need to
+		 * adjust the timestamp to match the first sample in the buffer
+		 * or we will miscalculate the sample_period at next round.
+		 */
+		data->timestamp -= (count - samples) * sample_period;
+		count = samples;
+	}
+
+	fifo_bytes = count * KX022A_FIFO_SAMPLES_SIZE_BYTES;
+	ret = regmap_noinc_read(data->regmap, KX022A_REG_BUF_READ,
+				&buffer[0], fifo_bytes);
+	if (ret)
+		goto renable_out;
+
+	for (i = 0; i < count; i++) {
+		__le16 *sam = &buffer[i * 3];
+		__le16 *chs;
+		int bit;
+
+		chs = &data->scan.channels[0];
+		for_each_set_bit(bit, idev->active_scan_mask, AXIS_MAX)
+			chs[bit] = sam[bit];
+
+		iio_push_to_buffers_with_timestamp(idev, &data->scan, tstamp);
+
+		tstamp += sample_period;
+	}
+
+	ret = count;
+
+renable_out:
+	if (renable)
+		enable_irq(data->irq);
+
+	return ret;
+}
+
+static int kx022a_fifo_flush(struct iio_dev *idev, unsigned int samples)
+{
+	struct kx022a_data *data = iio_priv(idev);
+	int ret;
+
+	mutex_lock(&data->mutex);
+	ret = __kx022a_fifo_flush(idev, samples, false);
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static const struct iio_info kx022a_info = {
+	.read_raw = &kx022a_read_raw,
+	.write_raw = &kx022a_write_raw,
+	.read_avail = &kx022a_read_avail,
+
+	.validate_trigger	= kx022a_validate_trigger,
+	.hwfifo_set_watermark	= kx022a_set_watermark,
+	.hwfifo_flush_to_buffer	= kx022a_fifo_flush,
+};
+
+static int kx022a_set_drdy_irq(struct kx022a_data *data, bool en)
+{
+	if (en)
+		return regmap_set_bits(data->regmap, KX022A_REG_CNTL,
+				       KX022A_MASK_DRDY);
+
+	return regmap_clear_bits(data->regmap, KX022A_REG_CNTL,
+				 KX022A_MASK_DRDY);
+}
+
+static int kx022a_prepare_irq_pin(struct kx022a_data *data)
+{
+	/* Enable IRQ1 pin. Set polarity to active low */
+	int mask = KX022A_MASK_IEN | KX022A_MASK_IPOL |
+		   KX022A_MASK_ITYP;
+	int val = KX022A_MASK_IEN | KX022A_IPOL_LOW |
+		  KX022A_ITYP_LEVEL;
+	int ret;
+
+	ret = regmap_update_bits(data->regmap, data->inc_reg, mask, val);
+	if (ret)
+		return ret;
+
+	/* We enable WMI to IRQ pin only at buffer_enable */
+	mask = KX022A_MASK_INS2_DRDY;
+
+	return regmap_set_bits(data->regmap, data->ien_reg, mask);
+}
+
+static int kx022a_fifo_disable(struct kx022a_data *data)
+{
+	int ret = 0;
+
+	ret = kx022a_turn_off_lock(data);
+	if (ret)
+		return ret;
+
+	ret = regmap_clear_bits(data->regmap, data->ien_reg, KX022A_MASK_WMI);
+	if (ret)
+		goto unlock_out;
+
+	ret = regmap_clear_bits(data->regmap, KX022A_REG_BUF_CNTL2,
+				KX022A_MASK_BUF_EN);
+	if (ret)
+		goto unlock_out;
+
+	data->state &= ~KX022A_STATE_FIFO;
+
+	kx022a_drop_fifo_contents(data);
+
+	return kx022a_turn_on_unlock(data);
+
+unlock_out:
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static int kx022a_buffer_predisable(struct iio_dev *idev)
+{
+	struct kx022a_data *data = iio_priv(idev);
+
+	if (iio_device_get_current_mode(idev) == INDIO_BUFFER_TRIGGERED)
+		return 0;
+
+	return kx022a_fifo_disable(data);
+}
+
+static int kx022a_fifo_enable(struct kx022a_data *data)
+{
+	int ret;
+
+	ret = kx022a_turn_off_lock(data);
+	if (ret)
+		return ret;
+
+	/* Update watermark to HW */
+	ret = kx022a_fifo_set_wmi(data);
+	if (ret)
+		goto unlock_out;
+
+	/* Enable buffer */
+	ret = regmap_set_bits(data->regmap, KX022A_REG_BUF_CNTL2,
+			      KX022A_MASK_BUF_EN);
+	if (ret)
+		goto unlock_out;
+
+	data->state |= KX022A_STATE_FIFO;
+	ret = regmap_set_bits(data->regmap, data->ien_reg,
+			      KX022A_MASK_WMI);
+	if (ret)
+		goto unlock_out;
+
+	return kx022a_turn_on_unlock(data);
+
+unlock_out:
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static int kx022a_buffer_postenable(struct iio_dev *idev)
+{
+	struct kx022a_data *data = iio_priv(idev);
+
+	/*
+	 * If we use data-ready trigger, then the IRQ masks should be handled by
+	 * trigger enable and the hardware buffer is not used but we just update
+	 * results to the IIO fifo when data-ready triggers.
+	 */
+	if (iio_device_get_current_mode(idev) == INDIO_BUFFER_TRIGGERED)
+		return 0;
+
+	return kx022a_fifo_enable(data);
+}
+
+static const struct iio_buffer_setup_ops kx022a_buffer_ops = {
+	.postenable = kx022a_buffer_postenable,
+	.predisable = kx022a_buffer_predisable,
+};
+
+static irqreturn_t kx022a_trigger_handler(int irq, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *idev = pf->indio_dev;
+	struct kx022a_data *data = iio_priv(idev);
+	int ret;
+
+	ret = regmap_bulk_read(data->regmap, KX022A_REG_XOUT_L, data->buffer,
+			       KX022A_FIFO_SAMPLES_SIZE_BYTES);
+	if (ret < 0)
+		goto err_read;
+
+	iio_push_to_buffers_with_timestamp(idev, data->buffer, pf->timestamp);
+err_read:
+	iio_trigger_notify_done(idev->trig);
+
+	return IRQ_HANDLED;
+}
+
+/* Get timestamps and wake the thread if we need to read data */
+static irqreturn_t kx022a_irq_handler(int irq, void *private)
+{
+	struct iio_dev *idev = private;
+	struct kx022a_data *data = iio_priv(idev);
+
+	data->old_timestamp = data->timestamp;
+	data->timestamp = iio_get_time_ns(idev);
+
+	if (data->state & KX022A_STATE_FIFO || data->trigger_enabled)
+		return IRQ_WAKE_THREAD;
+
+	return IRQ_NONE;
+}
+
+/*
+ * WMI and data-ready IRQs are acked when results are read. If we add
+ * TILT/WAKE or other IRQs - then we may need to implement the acking
+ * (which is racy).
+ */
+static irqreturn_t kx022a_irq_thread_handler(int irq, void *private)
+{
+	struct iio_dev *idev = private;
+	struct kx022a_data *data = iio_priv(idev);
+	irqreturn_t ret = IRQ_NONE;
+
+	mutex_lock(&data->mutex);
+
+	if (data->trigger_enabled) {
+		iio_trigger_poll_chained(data->trig);
+		ret = IRQ_HANDLED;
+	}
+
+	if (data->state & KX022A_STATE_FIFO) {
+		int ok;
+
+		ok = __kx022a_fifo_flush(idev, KX022A_FIFO_LENGTH, true);
+		if (ok > 0)
+			ret = IRQ_HANDLED;
+	}
+
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static int kx022a_trigger_set_state(struct iio_trigger *trig,
+				    bool state)
+{
+	struct kx022a_data *data = iio_trigger_get_drvdata(trig);
+	int ret = 0;
+
+	mutex_lock(&data->mutex);
+
+	if (data->trigger_enabled == state)
+		goto unlock_out;
+
+	if (data->state & KX022A_STATE_FIFO) {
+		dev_warn(data->dev, "Can't set trigger when FIFO enabled\n");
+		ret = -EBUSY;
+		goto unlock_out;
+	}
+
+	ret = kx022a_turn_on_off_unlocked(data, false);
+	if (ret)
+		goto unlock_out;
+
+	data->trigger_enabled = state;
+	ret = kx022a_set_drdy_irq(data, state);
+	if (ret)
+		goto unlock_out;
+
+	ret = kx022a_turn_on_off_unlocked(data, true);
+
+unlock_out:
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static const struct iio_trigger_ops kx022a_trigger_ops = {
+	.set_trigger_state = kx022a_trigger_set_state,
+};
+
+static int kx022a_chip_init(struct kx022a_data *data)
+{
+	int ret, val;
+
+	/* Reset the senor */
+	ret = regmap_write(data->regmap, KX022A_REG_CNTL2, KX022A_MASK_SRST);
+	if (ret)
+		return ret;
+
+	/*
+	 * I've seen I2C read failures if we poll too fast after the sensor
+	 * reset. Slight delay gives I2C block the time to recover.
+	 */
+	msleep(1);
+
+	ret = regmap_read_poll_timeout(data->regmap, KX022A_REG_CNTL2, val,
+				       !(val & KX022A_MASK_SRST),
+				       KX022A_SOFT_RESET_WAIT_TIME_US,
+				       KX022A_SOFT_RESET_TOTAL_WAIT_TIME_US);
+	if (ret) {
+		dev_err(data->dev, "Sensor reset %s\n",
+			val & KX022A_MASK_SRST ? "timeout" : "fail#");
+		return ret;
+	}
+
+	ret = regmap_reinit_cache(data->regmap, &kx022a_regmap);
+	if (ret) {
+		dev_err(data->dev, "Failed to reinit reg cache\n");
+		return ret;
+	}
+
+	/* set data res 16bit */
+	ret = regmap_set_bits(data->regmap, KX022A_REG_BUF_CNTL2,
+			      KX022A_MASK_BRES16);
+	if (ret) {
+		dev_err(data->dev, "Failed to set data resolution\n");
+		return ret;
+	}
+
+	return kx022a_prepare_irq_pin(data);
+}
+
+int kx022a_probe_internal(struct device *dev)
+{
+	static const char * const regulator_names[] = {"io-vdd", "vdd"};
+	struct iio_trigger *indio_trig;
+	struct fwnode_handle *fwnode;
+	struct kx022a_data *data;
+	struct regmap *regmap;
+	unsigned int chip_id;
+	struct iio_dev *idev;
+	int ret, irq;
+	char *name;
+
+	regmap = dev_get_regmap(dev, NULL);
+	if (!regmap) {
+		dev_err(dev, "no regmap\n");
+		return -EINVAL;
+	}
+
+	fwnode = dev_fwnode(dev);
+	if (!fwnode)
+		return -ENODEV;
+
+	idev = devm_iio_device_alloc(dev, sizeof(*data));
+	if (!idev)
+		return -ENOMEM;
+
+	data = iio_priv(idev);
+
+	/*
+	 * VDD is the analog and digital domain voltage supply and
+	 * IO_VDD is the digital I/O voltage supply.
+	 */
+	ret = devm_regulator_bulk_get_enable(dev, ARRAY_SIZE(regulator_names),
+					     regulator_names);
+	if (ret && ret != -ENODEV)
+		return dev_err_probe(dev, ret, "failed to enable regulator\n");
+
+	ret = regmap_read(regmap, KX022A_REG_WHO, &chip_id);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to access sensor\n");
+
+	if (chip_id != KX022A_ID) {
+		dev_err(dev, "unsupported device 0x%x\n", chip_id);
+		return -EINVAL;
+	}
+
+	irq = fwnode_irq_get_byname(fwnode, "INT1");
+	if (irq > 0) {
+		data->inc_reg = KX022A_REG_INC1;
+		data->ien_reg = KX022A_REG_INC4;
+	} else {
+		irq = fwnode_irq_get_byname(fwnode, "INT2");
+		if (irq <= 0)
+			return dev_err_probe(dev, irq, "No suitable IRQ\n");
+
+		data->inc_reg = KX022A_REG_INC5;
+		data->ien_reg = KX022A_REG_INC6;
+	}
+
+	data->regmap = regmap;
+	data->dev = dev;
+	data->irq = irq;
+	data->odr_ns = KX022A_DEFAULT_PERIOD_NS;
+	mutex_init(&data->mutex);
+
+	idev->channels = kx022a_channels;
+	idev->num_channels = ARRAY_SIZE(kx022a_channels);
+	idev->name = "kx022-accel";
+	idev->info = &kx022a_info;
+	idev->modes = INDIO_DIRECT_MODE | INDIO_BUFFER_SOFTWARE;
+	idev->available_scan_masks = kx022a_scan_masks;
+
+	/* Read the mounting matrix, if present */
+	ret = iio_read_mount_matrix(dev, &data->orientation);
+	if (ret)
+		return ret;
+
+	/* The sensor must be turned off for configuration */
+	ret = kx022a_turn_off_lock(data);
+	if (ret)
+		return ret;
+
+	ret = kx022a_chip_init(data);
+	if (ret) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+
+	ret = kx022a_turn_on_unlock(data);
+	if (ret)
+		return ret;
+
+	ret = devm_iio_triggered_buffer_setup_ext(dev, idev,
+						  &iio_pollfunc_store_time,
+						  kx022a_trigger_handler,
+						  IIO_BUFFER_DIRECTION_IN,
+						  &kx022a_buffer_ops,
+						  kx022a_fifo_attributes);
+
+	if (ret)
+		return dev_err_probe(data->dev, ret,
+				     "iio_triggered_buffer_setup_ext FAIL\n");
+	indio_trig = devm_iio_trigger_alloc(dev, "%sdata-rdy-dev%d", idev->name,
+					    iio_device_id(idev));
+	if (!indio_trig)
+		return -ENOMEM;
+
+	data->trig = indio_trig;
+
+	indio_trig->ops = &kx022a_trigger_ops;
+	iio_trigger_set_drvdata(indio_trig, data);
+
+	/*
+	 * No need to check for NULL. request_threaded_irq() defaults to
+	 * dev_name() should the alloc fail.
+	 */
+	name = devm_kasprintf(data->dev, GFP_KERNEL, "%s-kx022a",
+			      dev_name(data->dev));
+
+	ret = devm_request_threaded_irq(data->dev, irq, kx022a_irq_handler,
+					&kx022a_irq_thread_handler,
+					IRQF_ONESHOT, name, idev);
+	if (ret)
+		return dev_err_probe(data->dev, ret, "Could not request IRQ\n");
+
+
+	ret = devm_iio_trigger_register(dev, indio_trig);
+	if (ret)
+		return dev_err_probe(data->dev, ret,
+				     "Trigger registration failed\n");
+
+	ret = devm_iio_device_register(data->dev, idev);
+	if (ret < 0)
+		return dev_err_probe(dev, ret,
+				     "Unable to register iio device\n");
+
+	return ret;
+}
+EXPORT_SYMBOL_NS_GPL(kx022a_probe_internal, IIO_KX022A);
+
+MODULE_DESCRIPTION("ROHM/Kionix KX022A accelerometer driver");
+MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/iio/accel/kionix-kx022a.h b/drivers/iio/accel/kionix-kx022a.h
new file mode 100644
index 000000000000..12424649d438
--- /dev/null
+++ b/drivers/iio/accel/kionix-kx022a.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2022 ROHM Semiconductors
+ *
+ * ROHM/KIONIX KX022A accelerometer driver
+ */
+
+#ifndef _KX022A_H_
+#define _KX022A_H_
+
+#include <linux/bits.h>
+#include <linux/regmap.h>
+
+#define KX022A_REG_WHO		0x0f
+#define KX022A_ID		0xc8
+
+#define KX022A_REG_CNTL2	0x19
+#define KX022A_MASK_SRST	BIT(7)
+#define KX022A_REG_CNTL		0x18
+#define KX022A_MASK_PC1		BIT(7)
+#define KX022A_MASK_RES		BIT(6)
+#define KX022A_MASK_DRDY	BIT(5)
+#define KX022A_MASK_GSEL	GENMASK(4, 3)
+#define KX022A_GSEL_SHIFT	3
+#define KX022A_GSEL_2		0x0
+#define KX022A_GSEL_4		BIT(3)
+#define KX022A_GSEL_8		BIT(4)
+#define KX022A_GSEL_16		GENMASK(4, 3)
+
+#define KX022A_REG_INS2		0x13
+#define KX022A_MASK_INS2_DRDY	BIT(4)
+#define KX122_MASK_INS2_WMI	BIT(5)
+
+#define KX022A_REG_XHP_L	0x0
+#define KX022A_REG_XOUT_L	0x06
+#define KX022A_REG_YOUT_L	0x08
+#define KX022A_REG_ZOUT_L	0x0a
+#define KX022A_REG_COTR		0x0c
+#define KX022A_REG_TSCP		0x10
+#define KX022A_REG_INT_REL	0x17
+
+#define KX022A_REG_ODCNTL	0x1b
+
+#define KX022A_REG_BTS_WUF_TH	0x31
+#define KX022A_REG_MAN_WAKE	0x2c
+
+#define KX022A_REG_BUF_CNTL1	0x3a
+#define KX022A_MASK_WM_TH	GENMASK(6, 0)
+#define KX022A_REG_BUF_CNTL2	0x3b
+#define KX022A_MASK_BUF_EN	BIT(7)
+#define KX022A_MASK_BRES16	BIT(6)
+#define KX022A_REG_BUF_STATUS_1	0x3c
+#define KX022A_REG_BUF_STATUS_2	0x3d
+#define KX022A_REG_BUF_CLEAR	0x3e
+#define KX022A_REG_BUF_READ	0x3f
+#define KX022A_MASK_ODR		GENMASK(3, 0)
+#define KX022A_ODR_SHIFT	3
+#define KX022A_FIFO_MAX_WMI_TH	41
+
+#define KX022A_REG_INC1		0x1c
+#define KX022A_REG_INC5		0x20
+#define KX022A_REG_INC6		0x21
+#define KX022A_MASK_IEN		BIT(5)
+#define KX022A_MASK_IPOL	BIT(4)
+#define KX022A_IPOL_LOW		0
+#define KX022A_IPOL_HIGH	KX022A_MASK_IPOL1
+#define KX022A_MASK_ITYP	BIT(3)
+#define KX022A_ITYP_PULSE	KX022A_MASK_ITYP
+#define KX022A_ITYP_LEVEL	0
+
+#define KX022A_REG_INC4		0x1f
+#define KX022A_MASK_WMI		BIT(5)
+
+#define KX022A_REG_SELF_TEST	0x60
+#define KX022A_MAX_REGISTER	0x60
+
+struct device;
+
+int kx022a_probe_internal(struct device *dev);
+extern const struct regmap_config kx022a_regmap;
+
+#endif
diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index adc66b3615c0..98da4bda22df 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -241,7 +241,6 @@ enum kxcjk1013_axis {
 };
 
 struct kxcjk1013_data {
-	struct regulator_bulk_data regulators[2];
 	struct i2c_client *client;
 	struct iio_trigger *dready_trig;
 	struct iio_trigger *motion_trig;
@@ -1425,16 +1424,10 @@ static const char *kxcjk1013_match_acpi_device(struct device *dev,
 	return dev_name(dev);
 }
 
-static void kxcjk1013_disable_regulators(void *d)
-{
-	struct kxcjk1013_data *data = d;
-
-	regulator_bulk_disable(ARRAY_SIZE(data->regulators), data->regulators);
-}
-
-static int kxcjk1013_probe(struct i2c_client *client,
-			   const struct i2c_device_id *id)
+static int kxcjk1013_probe(struct i2c_client *client)
 {
+	const struct i2c_device_id *id = i2c_client_get_device_id(client);
+	static const char * const regulator_names[] = { "vdd", "vddio" };
 	struct kxcjk1013_data *data;
 	struct iio_dev *indio_dev;
 	struct kxcjk_1013_platform_data *pdata;
@@ -1461,22 +1454,12 @@ static int kxcjk1013_probe(struct i2c_client *client,
 			return ret;
 	}
 
-	data->regulators[0].supply = "vdd";
-	data->regulators[1].supply = "vddio";
-	ret = devm_regulator_bulk_get(&client->dev, ARRAY_SIZE(data->regulators),
-				      data->regulators);
+	ret = devm_regulator_bulk_get_enable(&client->dev,
+					     ARRAY_SIZE(regulator_names),
+					     regulator_names);
 	if (ret)
 		return dev_err_probe(&client->dev, ret, "Failed to get regulators\n");
 
-	ret = regulator_bulk_enable(ARRAY_SIZE(data->regulators),
-				    data->regulators);
-	if (ret)
-		return ret;
-
-	ret = devm_add_action_or_reset(&client->dev, kxcjk1013_disable_regulators, data);
-	if (ret)
-		return ret;
-
 	/*
 	 * A typical delay of 10ms is required for powering up
 	 * according to the data sheets of supported chips.
@@ -1749,7 +1732,7 @@ static struct i2c_driver kxcjk1013_driver = {
 		.of_match_table = kxcjk1013_of_match,
 		.pm	= &kxcjk1013_pm_ops,
 	},
-	.probe		= kxcjk1013_probe,
+	.probe_new	= kxcjk1013_probe,
 	.remove		= kxcjk1013_remove,
 	.id_table	= kxcjk1013_id,
 };
diff --git a/drivers/iio/accel/kxsd9-i2c.c b/drivers/iio/accel/kxsd9-i2c.c
index 61346ea8ef19..6b3683ddce36 100644
--- a/drivers/iio/accel/kxsd9-i2c.c
+++ b/drivers/iio/accel/kxsd9-i2c.c
@@ -10,8 +10,7 @@
 
 #include "kxsd9.h"
 
-static int kxsd9_i2c_probe(struct i2c_client *i2c,
-			   const struct i2c_device_id *id)
+static int kxsd9_i2c_probe(struct i2c_client *i2c)
 {
 	static const struct regmap_config config = {
 		.reg_bits = 8,
@@ -55,7 +54,7 @@ static struct i2c_driver kxsd9_i2c_driver = {
 		.of_match_table = kxsd9_of_match,
 		.pm = pm_ptr(&kxsd9_dev_pm_ops),
 	},
-	.probe		= kxsd9_i2c_probe,
+	.probe_new	= kxsd9_i2c_probe,
 	.remove		= kxsd9_i2c_remove,
 	.id_table	= kxsd9_i2c_id,
 };
diff --git a/drivers/iio/accel/mc3230.c b/drivers/iio/accel/mc3230.c
index 2462000e0519..efc21871de42 100644
--- a/drivers/iio/accel/mc3230.c
+++ b/drivers/iio/accel/mc3230.c
@@ -106,8 +106,7 @@ static const struct iio_info mc3230_info = {
 	.read_raw	= mc3230_read_raw,
 };
 
-static int mc3230_probe(struct i2c_client *client,
-			const struct i2c_device_id *id)
+static int mc3230_probe(struct i2c_client *client)
 {
 	int ret;
 	struct iio_dev *indio_dev;
@@ -191,7 +190,7 @@ static struct i2c_driver mc3230_driver = {
 		.name = "mc3230",
 		.pm = pm_sleep_ptr(&mc3230_pm_ops),
 	},
-	.probe		= mc3230_probe,
+	.probe_new	= mc3230_probe,
 	.remove		= mc3230_remove,
 	.id_table	= mc3230_i2c_id,
 };
diff --git a/drivers/iio/accel/mma7455_i2c.c b/drivers/iio/accel/mma7455_i2c.c
index c63b321b01cd..a3864dbe2761 100644
--- a/drivers/iio/accel/mma7455_i2c.c
+++ b/drivers/iio/accel/mma7455_i2c.c
@@ -10,9 +10,9 @@
 
 #include "mma7455.h"
 
-static int mma7455_i2c_probe(struct i2c_client *i2c,
-			     const struct i2c_device_id *id)
+static int mma7455_i2c_probe(struct i2c_client *i2c)
 {
+	const struct i2c_device_id *id = i2c_client_get_device_id(i2c);
 	struct regmap *regmap;
 	const char *name = NULL;
 
@@ -46,7 +46,7 @@ static const struct of_device_id mma7455_of_match[] = {
 MODULE_DEVICE_TABLE(of, mma7455_of_match);
 
 static struct i2c_driver mma7455_i2c_driver = {
-	.probe = mma7455_i2c_probe,
+	.probe_new = mma7455_i2c_probe,
 	.remove = mma7455_i2c_remove,
 	.id_table = mma7455_i2c_ids,
 	.driver = {
diff --git a/drivers/iio/accel/mma7660.c b/drivers/iio/accel/mma7660.c
index 85829990bbad..b279ca4dcdc0 100644
--- a/drivers/iio/accel/mma7660.c
+++ b/drivers/iio/accel/mma7660.c
@@ -169,8 +169,7 @@ static const struct iio_info mma7660_info = {
 	.attrs			= &mma7660_attribute_group,
 };
 
-static int mma7660_probe(struct i2c_client *client,
-			const struct i2c_device_id *id)
+static int mma7660_probe(struct i2c_client *client)
 {
 	int ret;
 	struct iio_dev *indio_dev;
@@ -267,7 +266,7 @@ static struct i2c_driver mma7660_driver = {
 		.of_match_table = mma7660_of_match,
 		.acpi_match_table = mma7660_acpi_id,
 	},
-	.probe		= mma7660_probe,
+	.probe_new	= mma7660_probe,
 	.remove		= mma7660_remove,
 	.id_table	= mma7660_i2c_id,
 };
diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index 3ba28c2ff68a..f97fb68e3a71 100644
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -1545,9 +1545,9 @@ static const struct of_device_id mma8452_dt_ids[] = {
 };
 MODULE_DEVICE_TABLE(of, mma8452_dt_ids);
 
-static int mma8452_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
+static int mma8452_probe(struct i2c_client *client)
 {
+	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	struct mma8452_data *data;
 	struct iio_dev *indio_dev;
 	int ret;
@@ -1846,7 +1846,7 @@ static struct i2c_driver mma8452_driver = {
 		.of_match_table = mma8452_dt_ids,
 		.pm	= &mma8452_pm_ops,
 	},
-	.probe = mma8452_probe,
+	.probe_new = mma8452_probe,
 	.remove = mma8452_remove,
 	.id_table = mma8452_id,
 };
diff --git a/drivers/iio/accel/mma9551.c b/drivers/iio/accel/mma9551.c
index f7a793f4a8e3..aa4f5842859e 100644
--- a/drivers/iio/accel/mma9551.c
+++ b/drivers/iio/accel/mma9551.c
@@ -446,9 +446,9 @@ static const char *mma9551_match_acpi_device(struct device *dev)
 	return dev_name(dev);
 }
 
-static int mma9551_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
+static int mma9551_probe(struct i2c_client *client)
 {
+	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	struct mma9551_data *data;
 	struct iio_dev *indio_dev;
 	const char *name = NULL;
@@ -607,7 +607,7 @@ static struct i2c_driver mma9551_driver = {
 		   .acpi_match_table = ACPI_PTR(mma9551_acpi_match),
 		   .pm = pm_ptr(&mma9551_pm_ops),
 		   },
-	.probe = mma9551_probe,
+	.probe_new = mma9551_probe,
 	.remove = mma9551_remove,
 	.id_table = mma9551_id,
 };
diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c
index 2da0e005b13e..0af578ef9d3d 100644
--- a/drivers/iio/accel/mma9553.c
+++ b/drivers/iio/accel/mma9553.c
@@ -1073,9 +1073,9 @@ static const char *mma9553_match_acpi_device(struct device *dev)
 	return dev_name(dev);
 }
 
-static int mma9553_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
+static int mma9553_probe(struct i2c_client *client)
 {
+	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	struct mma9553_data *data;
 	struct iio_dev *indio_dev;
 	const char *name = NULL;
@@ -1246,7 +1246,7 @@ static struct i2c_driver mma9553_driver = {
 		   .acpi_match_table = ACPI_PTR(mma9553_acpi_match),
 		   .pm = pm_ptr(&mma9553_pm_ops),
 		   },
-	.probe = mma9553_probe,
+	.probe_new = mma9553_probe,
 	.remove = mma9553_remove,
 	.id_table = mma9553_id,
 };
diff --git a/drivers/iio/accel/msa311.c b/drivers/iio/accel/msa311.c
index 2fded3759171..af94d3adf6d8 100644
--- a/drivers/iio/accel/msa311.c
+++ b/drivers/iio/accel/msa311.c
@@ -351,7 +351,6 @@ static const struct regmap_config msa311_regmap_config = {
  * @chip_name: Chip name in the format "msa311-%02x" % partid
  * @new_data_trig: Optional NEW_DATA interrupt driven trigger used
  *                 to notify external consumers a new sample is ready
- * @vdd: Optional external voltage regulator for the device power supply
  */
 struct msa311_priv {
 	struct regmap *regs;
@@ -362,7 +361,6 @@ struct msa311_priv {
 	char *chip_name;
 
 	struct iio_trigger *new_data_trig;
-	struct regulator *vdd;
 };
 
 enum msa311_si {
@@ -1146,11 +1144,6 @@ static void msa311_powerdown(void *msa311)
 	msa311_set_pwr_mode(msa311, MSA311_PWR_MODE_SUSPEND);
 }
 
-static void msa311_vdd_disable(void *vdd)
-{
-	regulator_disable(vdd);
-}
-
 static int msa311_probe(struct i2c_client *i2c)
 {
 	struct device *dev = &i2c->dev;
@@ -1173,19 +1166,9 @@ static int msa311_probe(struct i2c_client *i2c)
 
 	mutex_init(&msa311->lock);
 
-	msa311->vdd = devm_regulator_get(dev, "vdd");
-	if (IS_ERR(msa311->vdd))
-		return dev_err_probe(dev, PTR_ERR(msa311->vdd),
-				     "can't get vdd supply\n");
-
-	err = regulator_enable(msa311->vdd);
+	err = devm_regulator_get_enable(dev, "vdd");
 	if (err)
-		return dev_err_probe(dev, err, "can't enable vdd supply\n");
-
-	err = devm_add_action_or_reset(dev, msa311_vdd_disable, msa311->vdd);
-	if (err)
-		return dev_err_probe(dev, err,
-				     "can't add vdd disable action\n");
+		return dev_err_probe(dev, err, "can't get vdd supply\n");
 
 	err = msa311_check_partid(msa311);
 	if (err)
diff --git a/drivers/iio/accel/mxc4005.c b/drivers/iio/accel/mxc4005.c
index df600d2917c0..b146fc82738f 100644
--- a/drivers/iio/accel/mxc4005.c
+++ b/drivers/iio/accel/mxc4005.c
@@ -385,8 +385,7 @@ static int mxc4005_chip_init(struct mxc4005_data *data)
 	return 0;
 }
 
-static int mxc4005_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
+static int mxc4005_probe(struct i2c_client *client)
 {
 	struct mxc4005_data *data;
 	struct iio_dev *indio_dev;
@@ -489,7 +488,7 @@ static struct i2c_driver mxc4005_driver = {
 		.name = MXC4005_DRV_NAME,
 		.acpi_match_table = ACPI_PTR(mxc4005_acpi_match),
 	},
-	.probe		= mxc4005_probe,
+	.probe_new	= mxc4005_probe,
 	.id_table	= mxc4005_id,
 };
 
diff --git a/drivers/iio/accel/mxc6255.c b/drivers/iio/accel/mxc6255.c
index 9aeeadc420d3..aa2e660545f8 100644
--- a/drivers/iio/accel/mxc6255.c
+++ b/drivers/iio/accel/mxc6255.c
@@ -113,8 +113,7 @@ static const struct regmap_config mxc6255_regmap_config = {
 	.readable_reg = mxc6255_is_readable_reg,
 };
 
-static int mxc6255_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
+static int mxc6255_probe(struct i2c_client *client)
 {
 	struct mxc6255_data *data;
 	struct iio_dev *indio_dev;
@@ -184,7 +183,7 @@ static struct i2c_driver mxc6255_driver = {
 		.name = MXC6255_DRV_NAME,
 		.acpi_match_table = ACPI_PTR(mxc6255_acpi_match),
 	},
-	.probe		= mxc6255_probe,
+	.probe_new	= mxc6255_probe,
 	.id_table	= mxc6255_id,
 };
 
diff --git a/drivers/iio/accel/sca3300.c b/drivers/iio/accel/sca3300.c
index eaa0c9cfda44..306482b70fad 100644
--- a/drivers/iio/accel/sca3300.c
+++ b/drivers/iio/accel/sca3300.c
@@ -679,12 +679,20 @@ static const struct of_device_id sca3300_dt_ids[] = {
 };
 MODULE_DEVICE_TABLE(of, sca3300_dt_ids);
 
+static const struct spi_device_id sca3300_ids[] = {
+	{ "sca3300" },
+	{ "scl3300" },
+	{}
+};
+MODULE_DEVICE_TABLE(spi, sca3300_ids);
+
 static struct spi_driver sca3300_driver = {
-	.driver = {
+	.driver   = {
 		.name		= SCA3300_ALIAS,
 		.of_match_table = sca3300_dt_ids,
 	},
-	.probe	= sca3300_probe,
+	.probe	  = sca3300_probe,
+	.id_table = sca3300_ids,
 };
 module_spi_driver(sca3300_driver);
 
diff --git a/drivers/iio/accel/stk8312.c b/drivers/iio/accel/stk8312.c
index 7b1d6fb692b3..68f680db7505 100644
--- a/drivers/iio/accel/stk8312.c
+++ b/drivers/iio/accel/stk8312.c
@@ -498,8 +498,7 @@ static const struct iio_buffer_setup_ops stk8312_buffer_setup_ops = {
 	.postdisable = stk8312_buffer_postdisable,
 };
 
-static int stk8312_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
+static int stk8312_probe(struct i2c_client *client)
 {
 	int ret;
 	struct iio_dev *indio_dev;
@@ -645,7 +644,7 @@ static struct i2c_driver stk8312_driver = {
 		.name = STK8312_DRIVER_NAME,
 		.pm = pm_sleep_ptr(&stk8312_pm_ops),
 	},
-	.probe =            stk8312_probe,
+	.probe_new =        stk8312_probe,
 	.remove =           stk8312_remove,
 	.id_table =         stk8312_i2c_id,
 };
diff --git a/drivers/iio/accel/stk8ba50.c b/drivers/iio/accel/stk8ba50.c
index 2f5e4ab2a6e7..44f6e0fbdfcc 100644
--- a/drivers/iio/accel/stk8ba50.c
+++ b/drivers/iio/accel/stk8ba50.c
@@ -379,8 +379,7 @@ static const struct iio_buffer_setup_ops stk8ba50_buffer_setup_ops = {
 	.postdisable = stk8ba50_buffer_postdisable,
 };
 
-static int stk8ba50_probe(struct i2c_client *client,
-			  const struct i2c_device_id *id)
+static int stk8ba50_probe(struct i2c_client *client)
 {
 	int ret;
 	struct iio_dev *indio_dev;
@@ -544,7 +543,7 @@ static struct i2c_driver stk8ba50_driver = {
 		.pm = pm_sleep_ptr(&stk8ba50_pm_ops),
 		.acpi_match_table = ACPI_PTR(stk8ba50_acpi_id),
 	},
-	.probe =            stk8ba50_probe,
+	.probe_new =        stk8ba50_probe,
 	.remove =           stk8ba50_remove,
 	.id_table =         stk8ba50_i2c_id,
 };