Adding upstream version 6.7.7.upstream/6.7.7

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-05-18 17:35:05 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-05-18 17:39:31 +0000
commit: 85c675d0d09a45a135bddd15d7b385f8758c32fb (patch)
tree: 76267dbc9b9a130337be3640948fe397b04ac629 /drivers/iio
parent: Adding upstream version 6.6.15. (diff)
download: linux-85c675d0d09a45a135bddd15d7b385f8758c32fb.tar.xz
linux-85c675d0d09a45a135bddd15d7b385f8758c32fb.zip
113 files changed, 6314 insertions, 1145 deletions
diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
index b6b45d359f..d2221fe9ad 100644
--- a/drivers/iio/accel/Kconfig
+++ b/drivers/iio/accel/Kconfig
@@ -219,10 +219,12 @@ config BMA400
 
 config BMA400_I2C
 	tristate
+	select REGMAP_I2C
 	depends on BMA400
 
 config BMA400_SPI
 	tristate
+	select REGMAP_SPI
 	depends on BMA400
 
 config BMC150_ACCEL
@@ -418,8 +420,9 @@ config IIO_KX022A_SPI
 	select IIO_KX022A
 	select REGMAP_SPI
 	help
-	  Enable support for the Kionix KX022A digital tri-axis
-	  accelerometer connected to I2C interface.
+	  Enable support for the Kionix digital tri-axis accelerometers
+	  connected to SPI interface. Supported devices are:
+	    KX022A, KX132-1211, KX132ACR-LBZ
 
 config IIO_KX022A_I2C
 	tristate "Kionix KX022A tri-axis digital accelerometer I2C interface"
@@ -427,8 +430,9 @@ config IIO_KX022A_I2C
 	select IIO_KX022A
 	select REGMAP_I2C
 	help
-	  Enable support for the Kionix KX022A digital tri-axis
-	  accelerometer connected to I2C interface.
+	  Enable support for the Kionix digital tri-axis accelerometers
+	  connected to I2C interface. Supported devices are:
+	    KX022A, KX132-1211, KX132ACR-LBZ
 
 config KXSD9
 	tristate "Kionix KXSD9 Accelerometer Driver"
diff --git a/drivers/iio/accel/adxl345.h b/drivers/iio/accel/adxl345.h
index d7e67cb085..284bd387ce 100644
--- a/drivers/iio/accel/adxl345.h
+++ b/drivers/iio/accel/adxl345.h
@@ -8,9 +8,24 @@
 #ifndef _ADXL345_H_
 #define _ADXL345_H_
 
-enum adxl345_device_type {
-	ADXL345	= 1,
-	ADXL375 = 2,
+/*
+ * In full-resolution mode, scale factor is maintained at ~4 mg/LSB
+ * in all g ranges.
+ *
+ * At +/- 16g with 13-bit resolution, scale is computed as:
+ * (16 + 16) * 9.81 / (2^13 - 1) = 0.0383
+ */
+#define ADXL345_USCALE	38300
+
+/*
+ * The Datasheet lists a resolution of Resolution is ~49 mg per LSB. That's
+ * ~480mm/s**2 per LSB.
+ */
+#define ADXL375_USCALE	480000
+
+struct adxl345_chip_info {
+	const char *name;
+	int uscale;
 };
 
 int adxl345_core_probe(struct device *dev, struct regmap *regmap);
diff --git a/drivers/iio/accel/adxl345_core.c b/drivers/iio/accel/adxl345_core.c
index 1919e0089c..8bd30a23ed 100644
--- a/drivers/iio/accel/adxl345_core.c
+++ b/drivers/iio/accel/adxl345_core.c
@@ -45,25 +45,10 @@
 
 #define ADXL345_DEVID			0xE5
 
-/*
- * In full-resolution mode, scale factor is maintained at ~4 mg/LSB
- * in all g ranges.
- *
- * At +/- 16g with 13-bit resolution, scale is computed as:
- * (16 + 16) * 9.81 / (2^13 - 1) = 0.0383
- */
-static const int adxl345_uscale = 38300;
-
-/*
- * The Datasheet lists a resolution of Resolution is ~49 mg per LSB. That's
- * ~480mm/s**2 per LSB.
- */
-static const int adxl375_uscale = 480000;
-
 struct adxl345_data {
+	const struct adxl345_chip_info *info;
 	struct regmap *regmap;
 	u8 data_range;
-	enum adxl345_device_type type;
 };
 
 #define ADXL345_CHANNEL(index, axis) {					\
@@ -110,15 +95,7 @@ static int adxl345_read_raw(struct iio_dev *indio_dev,
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
 		*val = 0;
-		switch (data->type) {
-		case ADXL345:
-			*val2 = adxl345_uscale;
-			break;
-		case ADXL375:
-			*val2 = adxl375_uscale;
-			break;
-		}
-
+		*val2 = data->info->uscale;
 		return IIO_VAL_INT_PLUS_MICRO;
 	case IIO_CHAN_INFO_CALIBBIAS:
 		ret = regmap_read(data->regmap,
@@ -222,25 +199,11 @@ static void adxl345_powerdown(void *regmap)
 
 int adxl345_core_probe(struct device *dev, struct regmap *regmap)
 {
-	enum adxl345_device_type type;
 	struct adxl345_data *data;
 	struct iio_dev *indio_dev;
-	const char *name;
 	u32 regval;
 	int ret;
 
-	type = (uintptr_t)device_get_match_data(dev);
-	switch (type) {
-	case ADXL345:
-		name = "adxl345";
-		break;
-	case ADXL375:
-		name = "adxl375";
-		break;
-	default:
-		return -EINVAL;
-	}
-
 	ret = regmap_read(regmap, ADXL345_REG_DEVID, &regval);
 	if (ret < 0)
 		return dev_err_probe(dev, ret, "Error reading device ID\n");
@@ -255,16 +218,18 @@ int adxl345_core_probe(struct device *dev, struct regmap *regmap)
 
 	data = iio_priv(indio_dev);
 	data->regmap = regmap;
-	data->type = type;
 	/* Enable full-resolution mode */
 	data->data_range = ADXL345_DATA_FORMAT_FULL_RES;
+	data->info = device_get_match_data(dev);
+	if (!data->info)
+		return -ENODEV;
 
 	ret = regmap_write(data->regmap, ADXL345_REG_DATA_FORMAT,
 			   data->data_range);
 	if (ret < 0)
 		return dev_err_probe(dev, ret, "Failed to set data range\n");
 
-	indio_dev->name = name;
+	indio_dev->name = data->info->name;
 	indio_dev->info = &adxl345_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = adxl345_channels;
diff --git a/drivers/iio/accel/adxl345_i2c.c b/drivers/iio/accel/adxl345_i2c.c
index e47d12f196..a3084b0a8f 100644
--- a/drivers/iio/accel/adxl345_i2c.c
+++ b/drivers/iio/accel/adxl345_i2c.c
@@ -30,22 +30,32 @@ static int adxl345_i2c_probe(struct i2c_client *client)
 	return adxl345_core_probe(&client->dev, regmap);
 }
 
+static const struct adxl345_chip_info adxl345_i2c_info = {
+	.name = "adxl345",
+	.uscale = ADXL345_USCALE,
+};
+
+static const struct adxl345_chip_info adxl375_i2c_info = {
+	.name = "adxl375",
+	.uscale = ADXL375_USCALE,
+};
+
 static const struct i2c_device_id adxl345_i2c_id[] = {
-	{ "adxl345", ADXL345 },
-	{ "adxl375", ADXL375 },
+	{ "adxl345", (kernel_ulong_t)&adxl345_i2c_info },
+	{ "adxl375", (kernel_ulong_t)&adxl375_i2c_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, adxl345_i2c_id);
 
 static const struct of_device_id adxl345_of_match[] = {
-	{ .compatible = "adi,adxl345", .data = (const void *)ADXL345 },
-	{ .compatible = "adi,adxl375", .data = (const void *)ADXL375 },
+	{ .compatible = "adi,adxl345", .data = &adxl345_i2c_info },
+	{ .compatible = "adi,adxl375", .data = &adxl375_i2c_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, adxl345_of_match);
 
 static const struct acpi_device_id adxl345_acpi_match[] = {
-	{ "ADS0345", ADXL345 },
+	{ "ADS0345", (kernel_ulong_t)&adxl345_i2c_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, adxl345_acpi_match);
diff --git a/drivers/iio/accel/adxl345_spi.c b/drivers/iio/accel/adxl345_spi.c
index aaade58086..93ca349f17 100644
--- a/drivers/iio/accel/adxl345_spi.c
+++ b/drivers/iio/accel/adxl345_spi.c
@@ -36,22 +36,32 @@ static int adxl345_spi_probe(struct spi_device *spi)
 	return adxl345_core_probe(&spi->dev, regmap);
 }
 
+static const struct adxl345_chip_info adxl345_spi_info = {
+	.name = "adxl345",
+	.uscale = ADXL345_USCALE,
+};
+
+static const struct adxl345_chip_info adxl375_spi_info = {
+	.name = "adxl375",
+	.uscale = ADXL375_USCALE,
+};
+
 static const struct spi_device_id adxl345_spi_id[] = {
-	{ "adxl345", ADXL345 },
-	{ "adxl375", ADXL375 },
+	{ "adxl345", (kernel_ulong_t)&adxl345_spi_info },
+	{ "adxl375", (kernel_ulong_t)&adxl375_spi_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, adxl345_spi_id);
 
 static const struct of_device_id adxl345_of_match[] = {
-	{ .compatible = "adi,adxl345", .data = (const void *)ADXL345 },
-	{ .compatible = "adi,adxl375", .data = (const void *)ADXL375 },
+	{ .compatible = "adi,adxl345", .data = &adxl345_spi_info },
+	{ .compatible = "adi,adxl375", .data = &adxl375_spi_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, adxl345_of_match);
 
 static const struct acpi_device_id adxl345_acpi_match[] = {
-	{ "ADS0345", ADXL345 },
+	{ "ADS0345", (kernel_ulong_t)&adxl345_spi_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, adxl345_acpi_match);
diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index 13439f52d2..ab4fccb24b 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -926,7 +926,6 @@ static int bma180_probe(struct i2c_client *client)
 	struct device *dev = &client->dev;
 	struct bma180_data *data;
 	struct iio_dev *indio_dev;
-	enum chip_ids chip;
 	int ret;
 
 	indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
@@ -936,11 +935,7 @@ static int bma180_probe(struct i2c_client *client)
 	data = iio_priv(indio_dev);
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
-	if (client->dev.of_node)
-		chip = (uintptr_t)of_device_get_match_data(dev);
-	else
-		chip = id->driver_data;
-	data->part_info = &bma180_part_info[chip];
+	data->part_info = i2c_get_match_data(client);
 
 	ret = iio_read_mount_matrix(dev, &data->orientation);
 	if (ret)
@@ -1092,11 +1087,11 @@ static int bma180_resume(struct device *dev)
 static DEFINE_SIMPLE_DEV_PM_OPS(bma180_pm_ops, bma180_suspend, bma180_resume);
 
 static const struct i2c_device_id bma180_ids[] = {
-	{ "bma023", BMA023 },
-	{ "bma150", BMA150 },
-	{ "bma180", BMA180 },
-	{ "bma250", BMA250 },
-	{ "smb380", BMA150 },
+	{ "bma023", (kernel_ulong_t)&bma180_part_info[BMA023] },
+	{ "bma150", (kernel_ulong_t)&bma180_part_info[BMA150] },
+	{ "bma180", (kernel_ulong_t)&bma180_part_info[BMA180] },
+	{ "bma250", (kernel_ulong_t)&bma180_part_info[BMA250] },
+	{ "smb380", (kernel_ulong_t)&bma180_part_info[BMA150] },
 	{ }
 };
 
@@ -1105,23 +1100,23 @@ MODULE_DEVICE_TABLE(i2c, bma180_ids);
 static const struct of_device_id bma180_of_match[] = {
 	{
 		.compatible = "bosch,bma023",
-		.data = (void *)BMA023
+		.data = &bma180_part_info[BMA023]
 	},
 	{
 		.compatible = "bosch,bma150",
-		.data = (void *)BMA150
+		.data = &bma180_part_info[BMA150]
 	},
 	{
 		.compatible = "bosch,bma180",
-		.data = (void *)BMA180
+		.data = &bma180_part_info[BMA180]
 	},
 	{
 		.compatible = "bosch,bma250",
-		.data = (void *)BMA250
+		.data = &bma180_part_info[BMA250]
 	},
 	{
 		.compatible = "bosch,smb380",
-		.data = (void *)BMA150
+		.data = &bma180_part_info[BMA150]
 	},
 	{ }
 };
diff --git a/drivers/iio/accel/fxls8962af.h b/drivers/iio/accel/fxls8962af.h
index 9cbe98c3ba..6eaa2803b2 100644
--- a/drivers/iio/accel/fxls8962af.h
+++ b/drivers/iio/accel/fxls8962af.h
@@ -14,7 +14,6 @@ enum {
 };
 
 int fxls8962af_core_probe(struct device *dev, struct regmap *regmap, int irq);
-int fxls8962af_core_remove(struct device *dev);
 
 extern const struct dev_pm_ops fxls8962af_pm_ops;
 extern const struct regmap_config fxls8962af_i2c_regmap_conf;
diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c
index 5eac7ea199..9b7a73a4c4 100644
--- a/drivers/iio/accel/hid-sensor-accel-3d.c
+++ b/drivers/iio/accel/hid-sensor-accel-3d.c
@@ -422,7 +422,7 @@ error_remove_trigger:
 }
 
 /* Function to deinitialize the processing for usage id */
-static int hid_accel_3d_remove(struct platform_device *pdev)
+static void hid_accel_3d_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
@@ -431,8 +431,6 @@ static int hid_accel_3d_remove(struct platform_device *pdev)
 	sensor_hub_remove_callback(hsdev, hsdev->usage);
 	iio_device_unregister(indio_dev);
 	hid_sensor_remove_trigger(indio_dev, &accel_state->common_attributes);
-
-	return 0;
 }
 
 static const struct platform_device_id hid_accel_3d_ids[] = {
@@ -454,7 +452,7 @@ static struct platform_driver hid_accel_3d_platform_driver = {
 		.pm	= &hid_sensor_pm_ops,
 	},
 	.probe		= hid_accel_3d_probe,
-	.remove		= hid_accel_3d_remove,
+	.remove_new	= hid_accel_3d_remove,
 };
 module_platform_driver(hid_accel_3d_platform_driver);
 
diff --git a/drivers/iio/accel/kionix-kx022a-i2c.c b/drivers/iio/accel/kionix-kx022a-i2c.c
index b0ac78e85d..8a1d4fc28d 100644
--- a/drivers/iio/accel/kionix-kx022a-i2c.c
+++ b/drivers/iio/accel/kionix-kx022a-i2c.c
@@ -2,7 +2,7 @@
 /*
  * Copyright (C) 2022 ROHM Semiconductors
  *
- * ROHM/KIONIX KX022A accelerometer driver
+ * ROHM/KIONIX accelerometer driver
  */
 
 #include <linux/i2c.h>
@@ -15,6 +15,7 @@
 static int kx022a_i2c_probe(struct i2c_client *i2c)
 {
 	struct device *dev = &i2c->dev;
+	const struct kx022a_chip_info *chip_info;
 	struct regmap *regmap;
 
 	if (!i2c->irq) {
@@ -22,16 +23,30 @@ static int kx022a_i2c_probe(struct i2c_client *i2c)
 		return -EINVAL;
 	}
 
-	regmap = devm_regmap_init_i2c(i2c, &kx022a_regmap);
+	chip_info = i2c_get_match_data(i2c);
+	if (!chip_info)
+		return -EINVAL;
+
+	regmap = devm_regmap_init_i2c(i2c, chip_info->regmap_config);
 	if (IS_ERR(regmap))
 		return dev_err_probe(dev, PTR_ERR(regmap),
 				     "Failed to initialize Regmap\n");
 
-	return kx022a_probe_internal(dev);
+	return kx022a_probe_internal(dev, chip_info);
 }
 
+static const struct i2c_device_id kx022a_i2c_id[] = {
+	{ .name = "kx022a", .driver_data = (kernel_ulong_t)&kx022a_chip_info },
+	{ .name = "kx132-1211", .driver_data = (kernel_ulong_t)&kx132_chip_info },
+	{ .name = "kx132acr-lbz", .driver_data = (kernel_ulong_t)&kx132acr_chip_info },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, kx022a_i2c_id);
+
 static const struct of_device_id kx022a_of_match[] = {
-	{ .compatible = "kionix,kx022a", },
+	{ .compatible = "kionix,kx022a", .data = &kx022a_chip_info },
+	{ .compatible = "kionix,kx132-1211", .data = &kx132_chip_info },
+	{ .compatible = "rohm,kx132acr-lbz", .data = &kx132acr_chip_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, kx022a_of_match);
@@ -43,6 +58,7 @@ static struct i2c_driver kx022a_i2c_driver = {
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	  },
 	.probe        = kx022a_i2c_probe,
+	.id_table     = kx022a_i2c_id,
 };
 module_i2c_driver(kx022a_i2c_driver);
 
diff --git a/drivers/iio/accel/kionix-kx022a-spi.c b/drivers/iio/accel/kionix-kx022a-spi.c
index f45a46899a..f798b964d0 100644
--- a/drivers/iio/accel/kionix-kx022a-spi.c
+++ b/drivers/iio/accel/kionix-kx022a-spi.c
@@ -2,7 +2,7 @@
 /*
  * Copyright (C) 2022 ROHM Semiconductors
  *
- * ROHM/KIONIX KX022A accelerometer driver
+ * ROHM/KIONIX accelerometer driver
  */
 
 #include <linux/interrupt.h>
@@ -15,6 +15,7 @@
 static int kx022a_spi_probe(struct spi_device *spi)
 {
 	struct device *dev = &spi->dev;
+	const struct kx022a_chip_info *chip_info;
 	struct regmap *regmap;
 
 	if (!spi->irq) {
@@ -22,22 +23,30 @@ static int kx022a_spi_probe(struct spi_device *spi)
 		return -EINVAL;
 	}
 
-	regmap = devm_regmap_init_spi(spi, &kx022a_regmap);
+	chip_info = spi_get_device_match_data(spi);
+	if (!chip_info)
+		return -EINVAL;
+
+	regmap = devm_regmap_init_spi(spi, chip_info->regmap_config);
 	if (IS_ERR(regmap))
 		return dev_err_probe(dev, PTR_ERR(regmap),
 				     "Failed to initialize Regmap\n");
 
-	return kx022a_probe_internal(dev);
+	return kx022a_probe_internal(dev, chip_info);
 }
 
 static const struct spi_device_id kx022a_id[] = {
-	{ "kx022a" },
+	{ .name = "kx022a", .driver_data = (kernel_ulong_t)&kx022a_chip_info },
+	{ .name = "kx132-1211", .driver_data = (kernel_ulong_t)&kx132_chip_info },
+	{ .name = "kx132acr-lbz", .driver_data = (kernel_ulong_t)&kx132acr_chip_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, kx022a_id);
 
 static const struct of_device_id kx022a_of_match[] = {
-	{ .compatible = "kionix,kx022a", },
+	{ .compatible = "kionix,kx022a", .data = &kx022a_chip_info },
+	{ .compatible = "kionix,kx132-1211", .data = &kx132_chip_info },
+	{ .compatible = "rohm,kx132acr-lbz", .data = &kx132acr_chip_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, kx022a_of_match);
diff --git a/drivers/iio/accel/kionix-kx022a.c b/drivers/iio/accel/kionix-kx022a.c
index 971fc60efe..53d59a04ae 100644
--- a/drivers/iio/accel/kionix-kx022a.c
+++ b/drivers/iio/accel/kionix-kx022a.c
@@ -2,7 +2,7 @@
 /*
  * Copyright (C) 2022 ROHM Semiconductors
  *
- * ROHM/KIONIX KX022A accelerometer driver
+ * ROHM/KIONIX accelerometer driver
  */
 
 #include <linux/delay.h>
@@ -15,7 +15,7 @@
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
-#include <linux/string_helpers.h>
+#include <linux/string_choices.h>
 #include <linux/units.h>
 
 #include <linux/iio/iio.h>
@@ -48,7 +48,7 @@ enum {
 	KX022A_STATE_FIFO,
 };
 
-/* Regmap configs */
+/* kx022a Regmap configs */
 static const struct regmap_range kx022a_volatile_ranges[] = {
 	{
 		.range_min = KX022A_REG_XHP_L,
@@ -138,7 +138,7 @@ static const struct regmap_access_table kx022a_nir_regs = {
 	.n_yes_ranges = ARRAY_SIZE(kx022a_noinc_read_ranges),
 };
 
-const struct regmap_config kx022a_regmap = {
+static const struct regmap_config kx022a_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.volatile_table = &kx022a_volatile_regs,
@@ -149,10 +149,121 @@ const struct regmap_config kx022a_regmap = {
 	.max_register = KX022A_MAX_REGISTER,
 	.cache_type = REGCACHE_RBTREE,
 };
-EXPORT_SYMBOL_NS_GPL(kx022a_regmap, IIO_KX022A);
+
+/* Regmap configs kx132 */
+static const struct regmap_range kx132_volatile_ranges[] = {
+	{
+		.range_min = KX132_REG_XADP_L,
+		.range_max = KX132_REG_COTR,
+	}, {
+		.range_min = KX132_REG_TSCP,
+		.range_max = KX132_REG_INT_REL,
+	}, {
+		/* The reset bit will be cleared by sensor */
+		.range_min = KX132_REG_CNTL2,
+		.range_max = KX132_REG_CNTL2,
+	}, {
+		.range_min = KX132_REG_CNTL5,
+		.range_max = KX132_REG_CNTL5,
+	}, {
+		.range_min = KX132_REG_BUF_STATUS_1,
+		.range_max = KX132_REG_BUF_READ,
+	},
+};
+
+static const struct regmap_access_table kx132_volatile_regs = {
+	.yes_ranges = &kx132_volatile_ranges[0],
+	.n_yes_ranges = ARRAY_SIZE(kx132_volatile_ranges),
+};
+
+static const struct regmap_range kx132_precious_ranges[] = {
+	{
+		.range_min = KX132_REG_INT_REL,
+		.range_max = KX132_REG_INT_REL,
+	},
+};
+
+static const struct regmap_access_table kx132_precious_regs = {
+	.yes_ranges = &kx132_precious_ranges[0],
+	.n_yes_ranges = ARRAY_SIZE(kx132_precious_ranges),
+};
+
+static const struct regmap_range kx132_read_only_ranges[] = {
+	{
+		.range_min = KX132_REG_XADP_L,
+		.range_max = KX132_REG_INT_REL,
+	}, {
+		.range_min = KX132_REG_BUF_STATUS_1,
+		.range_max = KX132_REG_BUF_STATUS_2,
+	}, {
+		.range_min = KX132_REG_BUF_READ,
+		.range_max = KX132_REG_BUF_READ,
+	}, {
+		/* Kionix reserved registers: should not be written */
+		.range_min = 0x28,
+		.range_max = 0x28,
+	}, {
+		.range_min = 0x35,
+		.range_max = 0x36,
+	}, {
+		.range_min = 0x3c,
+		.range_max = 0x48,
+	}, {
+		.range_min = 0x4e,
+		.range_max = 0x5c,
+	}, {
+		.range_min = 0x77,
+		.range_max = 0x7f,
+	},
+};
+
+static const struct regmap_access_table kx132_ro_regs = {
+	.no_ranges = &kx132_read_only_ranges[0],
+	.n_no_ranges = ARRAY_SIZE(kx132_read_only_ranges),
+};
+
+static const struct regmap_range kx132_write_only_ranges[] = {
+	{
+		.range_min = KX132_REG_SELF_TEST,
+		.range_max = KX132_REG_SELF_TEST,
+	}, {
+		.range_min = KX132_REG_BUF_CLEAR,
+		.range_max = KX132_REG_BUF_CLEAR,
+	},
+};
+
+static const struct regmap_access_table kx132_wo_regs = {
+	.no_ranges = &kx132_write_only_ranges[0],
+	.n_no_ranges = ARRAY_SIZE(kx132_write_only_ranges),
+};
+
+static const struct regmap_range kx132_noinc_read_ranges[] = {
+	{
+		.range_min = KX132_REG_BUF_READ,
+		.range_max = KX132_REG_BUF_READ,
+	},
+};
+
+static const struct regmap_access_table kx132_nir_regs = {
+	.yes_ranges = &kx132_noinc_read_ranges[0],
+	.n_yes_ranges = ARRAY_SIZE(kx132_noinc_read_ranges),
+};
+
+static const struct regmap_config kx132_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.volatile_table = &kx132_volatile_regs,
+	.rd_table = &kx132_wo_regs,
+	.wr_table = &kx132_ro_regs,
+	.rd_noinc_table = &kx132_nir_regs,
+	.precious_table = &kx132_precious_regs,
+	.max_register = KX132_MAX_REGISTER,
+	.cache_type = REGCACHE_RBTREE,
+};
 
 struct kx022a_data {
 	struct regmap *regmap;
+	const struct kx022a_chip_info *chip_info;
 	struct iio_trigger *trig;
 	struct device *dev;
 	struct iio_mount_matrix orientation;
@@ -175,6 +286,8 @@ struct kx022a_data {
 	struct mutex mutex;
 	u8 watermark;
 
+	__le16 *fifo_buffer;
+
 	/* 3 x 16bit accel data + timestamp */
 	__le16 buffer[8] __aligned(IIO_DMA_MINALIGN);
 	struct {
@@ -208,7 +321,7 @@ static const struct iio_chan_spec_ext_info kx022a_ext_info[] = {
 	{ }
 };
 
-#define KX022A_ACCEL_CHAN(axis, index)				\
+#define KX022A_ACCEL_CHAN(axis, reg, index)			\
 {								\
 	.type = IIO_ACCEL,					\
 	.modified = 1,						\
@@ -220,7 +333,7 @@ static const struct iio_chan_spec_ext_info kx022a_ext_info[] = {
 				BIT(IIO_CHAN_INFO_SCALE) |	\
 				BIT(IIO_CHAN_INFO_SAMP_FREQ),	\
 	.ext_info = kx022a_ext_info,				\
-	.address = KX022A_REG_##axis##OUT_L,			\
+	.address = reg,						\
 	.scan_index = index,					\
 	.scan_type = {                                          \
 		.sign = 's',					\
@@ -231,9 +344,16 @@ static const struct iio_chan_spec_ext_info kx022a_ext_info[] = {
 }
 
 static const struct iio_chan_spec kx022a_channels[] = {
-	KX022A_ACCEL_CHAN(X, 0),
-	KX022A_ACCEL_CHAN(Y, 1),
-	KX022A_ACCEL_CHAN(Z, 2),
+	KX022A_ACCEL_CHAN(X, KX022A_REG_XOUT_L, 0),
+	KX022A_ACCEL_CHAN(Y, KX022A_REG_YOUT_L, 1),
+	KX022A_ACCEL_CHAN(Z, KX022A_REG_ZOUT_L, 2),
+	IIO_CHAN_SOFT_TIMESTAMP(3),
+};
+
+static const struct iio_chan_spec kx132_channels[] = {
+	KX022A_ACCEL_CHAN(X, KX132_REG_XOUT_L, 0),
+	KX022A_ACCEL_CHAN(Y, KX132_REG_YOUT_L, 1),
+	KX022A_ACCEL_CHAN(Z, KX132_REG_ZOUT_L, 2),
 	IIO_CHAN_SOFT_TIMESTAMP(3),
 };
 
@@ -332,16 +452,15 @@ 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,
+		ret = regmap_set_bits(data->regmap, data->chip_info->cntl,
 				      KX022A_MASK_PC1);
 	else
-		ret = regmap_clear_bits(data->regmap, KX022A_REG_CNTL,
+		ret = regmap_clear_bits(data->regmap, data->chip_info->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)
@@ -417,7 +536,7 @@ static int kx022a_write_raw(struct iio_dev *idev,
 			break;
 
 		ret = regmap_update_bits(data->regmap,
-					 KX022A_REG_ODCNTL,
+					 data->chip_info->odcntl,
 					 KX022A_MASK_ODR, n);
 		data->odr_ns = kx022a_odrs[n];
 		kx022a_turn_on_unlock(data);
@@ -438,7 +557,7 @@ static int kx022a_write_raw(struct iio_dev *idev,
 		if (ret)
 			break;
 
-		ret = regmap_update_bits(data->regmap, KX022A_REG_CNTL,
+		ret = regmap_update_bits(data->regmap, data->chip_info->cntl,
 					 KX022A_MASK_GSEL,
 					 n << KX022A_GSEL_SHIFT);
 		kx022a_turn_on_unlock(data);
@@ -460,7 +579,7 @@ static int kx022a_fifo_set_wmi(struct kx022a_data *data)
 
 	threshold = data->watermark;
 
-	return regmap_update_bits(data->regmap, KX022A_REG_BUF_CNTL1,
+	return regmap_update_bits(data->regmap, data->chip_info->buf_cntl1,
 				  KX022A_MASK_WM_TH, threshold);
 }
 
@@ -503,7 +622,7 @@ static int kx022a_read_raw(struct iio_dev *idev,
 		return ret;
 
 	case IIO_CHAN_INFO_SAMP_FREQ:
-		ret = regmap_read(data->regmap, KX022A_REG_ODCNTL, &regval);
+		ret = regmap_read(data->regmap, data->chip_info->odcntl, &regval);
 		if (ret)
 			return ret;
 
@@ -518,7 +637,7 @@ static int kx022a_read_raw(struct iio_dev *idev,
 		return IIO_VAL_INT_PLUS_MICRO;
 
 	case IIO_CHAN_INFO_SCALE:
-		ret = regmap_read(data->regmap, KX022A_REG_CNTL, &regval);
+		ret = regmap_read(data->regmap, data->chip_info->cntl, &regval);
 		if (ret < 0)
 			return ret;
 
@@ -534,8 +653,7 @@ 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;
+	val = min(data->chip_info->fifo_length, val);
 
 	mutex_lock(&data->mutex);
 	data->watermark = val;
@@ -596,30 +714,56 @@ static int kx022a_drop_fifo_contents(struct kx022a_data *data)
 	 */
 	data->timestamp = 0;
 
-	return regmap_write(data->regmap, KX022A_REG_BUF_CLEAR, 0x0);
+	return regmap_write(data->regmap, data->chip_info->buf_clear, 0x0);
+}
+
+static int kx022a_get_fifo_bytes_available(struct kx022a_data *data)
+{
+	int ret, fifo_bytes;
+
+	ret = regmap_read(data->regmap, KX022A_REG_BUF_STATUS_1, &fifo_bytes);
+	if (ret) {
+		dev_err(data->dev, "Error reading buffer status\n");
+		return ret;
+	}
+
+	if (fifo_bytes == KX022A_FIFO_FULL_VALUE)
+		return KX022A_FIFO_MAX_BYTES;
+
+	return fifo_bytes;
+}
+
+static int kx132_get_fifo_bytes_available(struct kx022a_data *data)
+{
+	__le16 buf_status;
+	int ret, fifo_bytes;
+
+	ret = regmap_bulk_read(data->regmap, data->chip_info->buf_status1,
+			       &buf_status, sizeof(buf_status));
+	if (ret) {
+		dev_err(data->dev, "Error reading buffer status\n");
+		return ret;
+	}
+
+	fifo_bytes = le16_to_cpu(buf_status);
+	fifo_bytes &= data->chip_info->buf_smp_lvl_mask;
+	fifo_bytes = min((unsigned int)fifo_bytes, data->chip_info->fifo_length *
+			 KX022A_FIFO_SAMPLES_SIZE_BYTES);
+
+	return fifo_bytes;
 }
 
 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;
+	fifo_bytes = data->chip_info->get_fifo_bytes_available(data);
 
 	if (fifo_bytes % KX022A_FIFO_SAMPLES_SIZE_BYTES)
 		dev_warn(data->dev, "Bad FIFO alignment. Data may be corrupt\n");
@@ -683,13 +827,13 @@ static int __kx022a_fifo_flush(struct iio_dev *idev, unsigned int samples,
 	}
 
 	fifo_bytes = count * KX022A_FIFO_SAMPLES_SIZE_BYTES;
-	ret = regmap_noinc_read(data->regmap, KX022A_REG_BUF_READ,
-				&buffer[0], fifo_bytes);
+	ret = regmap_noinc_read(data->regmap, data->chip_info->buf_read,
+				data->fifo_buffer, fifo_bytes);
 	if (ret)
 		goto renable_out;
 
 	for (i = 0; i < count; i++) {
-		__le16 *sam = &buffer[i * 3];
+		__le16 *sam = &data->fifo_buffer[i * 3];
 		__le16 *chs;
 		int bit;
 
@@ -737,10 +881,10 @@ static const struct iio_info kx022a_info = {
 static int kx022a_set_drdy_irq(struct kx022a_data *data, bool en)
 {
 	if (en)
-		return regmap_set_bits(data->regmap, KX022A_REG_CNTL,
+		return regmap_set_bits(data->regmap, data->chip_info->cntl,
 				       KX022A_MASK_DRDY);
 
-	return regmap_clear_bits(data->regmap, KX022A_REG_CNTL,
+	return regmap_clear_bits(data->regmap, data->chip_info->cntl,
 				 KX022A_MASK_DRDY);
 }
 
@@ -775,7 +919,7 @@ static int kx022a_fifo_disable(struct kx022a_data *data)
 	if (ret)
 		goto unlock_out;
 
-	ret = regmap_clear_bits(data->regmap, KX022A_REG_BUF_CNTL2,
+	ret = regmap_clear_bits(data->regmap, data->chip_info->buf_cntl2,
 				KX022A_MASK_BUF_EN);
 	if (ret)
 		goto unlock_out;
@@ -784,6 +928,8 @@ static int kx022a_fifo_disable(struct kx022a_data *data)
 
 	kx022a_drop_fifo_contents(data);
 
+	kfree(data->fifo_buffer);
+
 	return kx022a_turn_on_unlock(data);
 
 unlock_out:
@@ -806,6 +952,12 @@ static int kx022a_fifo_enable(struct kx022a_data *data)
 {
 	int ret;
 
+	data->fifo_buffer = kmalloc_array(data->chip_info->fifo_length,
+					  KX022A_FIFO_SAMPLES_SIZE_BYTES,
+					  GFP_KERNEL);
+	if (!data->fifo_buffer)
+		return -ENOMEM;
+
 	ret = kx022a_turn_off_lock(data);
 	if (ret)
 		return ret;
@@ -816,7 +968,7 @@ static int kx022a_fifo_enable(struct kx022a_data *data)
 		goto unlock_out;
 
 	/* Enable buffer */
-	ret = regmap_set_bits(data->regmap, KX022A_REG_BUF_CNTL2,
+	ret = regmap_set_bits(data->regmap, data->chip_info->buf_cntl2,
 			      KX022A_MASK_BUF_EN);
 	if (ret)
 		goto unlock_out;
@@ -862,7 +1014,7 @@ static irqreturn_t kx022a_trigger_handler(int irq, void *p)
 	struct kx022a_data *data = iio_priv(idev);
 	int ret;
 
-	ret = regmap_bulk_read(data->regmap, KX022A_REG_XOUT_L, data->buffer,
+	ret = regmap_bulk_read(data->regmap, data->chip_info->xout_l, data->buffer,
 			       KX022A_FIFO_SAMPLES_SIZE_BYTES);
 	if (ret < 0)
 		goto err_read;
@@ -910,7 +1062,7 @@ static irqreturn_t kx022a_irq_thread_handler(int irq, void *private)
 	if (data->state & KX022A_STATE_FIFO) {
 		int ok;
 
-		ok = __kx022a_fifo_flush(idev, KX022A_FIFO_LENGTH, true);
+		ok = __kx022a_fifo_flush(idev, data->chip_info->fifo_length, true);
 		if (ok > 0)
 			ret = IRQ_HANDLED;
 	}
@@ -963,7 +1115,7 @@ 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);
+	ret = regmap_write(data->regmap, data->chip_info->cntl2, KX022A_MASK_SRST);
 	if (ret)
 		return ret;
 
@@ -973,7 +1125,7 @@ static int kx022a_chip_init(struct kx022a_data *data)
 	 */
 	msleep(1);
 
-	ret = regmap_read_poll_timeout(data->regmap, KX022A_REG_CNTL2, val,
+	ret = regmap_read_poll_timeout(data->regmap, data->chip_info->cntl2, val,
 				       !(val & KX022A_MASK_SRST),
 				       KX022A_SOFT_RESET_WAIT_TIME_US,
 				       KX022A_SOFT_RESET_TOTAL_WAIT_TIME_US);
@@ -983,14 +1135,14 @@ static int kx022a_chip_init(struct kx022a_data *data)
 		return ret;
 	}
 
-	ret = regmap_reinit_cache(data->regmap, &kx022a_regmap);
+	ret = regmap_reinit_cache(data->regmap, data->chip_info->regmap_config);
 	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,
+	ret = regmap_set_bits(data->regmap, data->chip_info->buf_cntl2,
 			      KX022A_MASK_BRES16);
 	if (ret) {
 		dev_err(data->dev, "Failed to set data resolution\n");
@@ -1000,7 +1152,90 @@ static int kx022a_chip_init(struct kx022a_data *data)
 	return kx022a_prepare_irq_pin(data);
 }
 
-int kx022a_probe_internal(struct device *dev)
+const struct kx022a_chip_info kx022a_chip_info = {
+	.name				= "kx022-accel",
+	.regmap_config			= &kx022a_regmap_config,
+	.channels			= kx022a_channels,
+	.num_channels			= ARRAY_SIZE(kx022a_channels),
+	.fifo_length			= KX022A_FIFO_LENGTH,
+	.who				= KX022A_REG_WHO,
+	.id				= KX022A_ID,
+	.cntl				= KX022A_REG_CNTL,
+	.cntl2				= KX022A_REG_CNTL2,
+	.odcntl				= KX022A_REG_ODCNTL,
+	.buf_cntl1			= KX022A_REG_BUF_CNTL1,
+	.buf_cntl2			= KX022A_REG_BUF_CNTL2,
+	.buf_clear			= KX022A_REG_BUF_CLEAR,
+	.buf_status1			= KX022A_REG_BUF_STATUS_1,
+	.buf_read			= KX022A_REG_BUF_READ,
+	.inc1				= KX022A_REG_INC1,
+	.inc4				= KX022A_REG_INC4,
+	.inc5				= KX022A_REG_INC5,
+	.inc6				= KX022A_REG_INC6,
+	.xout_l				= KX022A_REG_XOUT_L,
+	.get_fifo_bytes_available	= kx022a_get_fifo_bytes_available,
+};
+EXPORT_SYMBOL_NS_GPL(kx022a_chip_info, IIO_KX022A);
+
+const struct kx022a_chip_info kx132_chip_info = {
+	.name			  = "kx132-1211",
+	.regmap_config		  = &kx132_regmap_config,
+	.channels		  = kx132_channels,
+	.num_channels		  = ARRAY_SIZE(kx132_channels),
+	.fifo_length		  = KX132_FIFO_LENGTH,
+	.who			  = KX132_REG_WHO,
+	.id			  = KX132_ID,
+	.cntl			  = KX132_REG_CNTL,
+	.cntl2			  = KX132_REG_CNTL2,
+	.odcntl			  = KX132_REG_ODCNTL,
+	.buf_cntl1		  = KX132_REG_BUF_CNTL1,
+	.buf_cntl2		  = KX132_REG_BUF_CNTL2,
+	.buf_clear		  = KX132_REG_BUF_CLEAR,
+	.buf_status1		  = KX132_REG_BUF_STATUS_1,
+	.buf_smp_lvl_mask	  = KX132_MASK_BUF_SMP_LVL,
+	.buf_read		  = KX132_REG_BUF_READ,
+	.inc1			  = KX132_REG_INC1,
+	.inc4			  = KX132_REG_INC4,
+	.inc5			  = KX132_REG_INC5,
+	.inc6			  = KX132_REG_INC6,
+	.xout_l			  = KX132_REG_XOUT_L,
+	.get_fifo_bytes_available = kx132_get_fifo_bytes_available,
+};
+EXPORT_SYMBOL_NS_GPL(kx132_chip_info, IIO_KX022A);
+
+/*
+ * Despite the naming, KX132ACR-LBZ is not similar to KX132-1211 but it is
+ * exact subset of KX022A. KX132ACR-LBZ is meant to be used for industrial
+ * applications and the tap/double tap, free fall and tilt engines were
+ * removed. Rest of the registers and functionalities (excluding the ID
+ * register) are exact match to what is found in KX022.
+ */
+const struct kx022a_chip_info kx132acr_chip_info = {
+	.name				= "kx132acr-lbz",
+	.regmap_config			= &kx022a_regmap_config,
+	.channels			= kx022a_channels,
+	.num_channels			= ARRAY_SIZE(kx022a_channels),
+	.fifo_length			= KX022A_FIFO_LENGTH,
+	.who				= KX022A_REG_WHO,
+	.id				= KX132ACR_LBZ_ID,
+	.cntl				= KX022A_REG_CNTL,
+	.cntl2				= KX022A_REG_CNTL2,
+	.odcntl				= KX022A_REG_ODCNTL,
+	.buf_cntl1			= KX022A_REG_BUF_CNTL1,
+	.buf_cntl2			= KX022A_REG_BUF_CNTL2,
+	.buf_clear			= KX022A_REG_BUF_CLEAR,
+	.buf_status1			= KX022A_REG_BUF_STATUS_1,
+	.buf_read			= KX022A_REG_BUF_READ,
+	.inc1				= KX022A_REG_INC1,
+	.inc4				= KX022A_REG_INC4,
+	.inc5				= KX022A_REG_INC5,
+	.inc6				= KX022A_REG_INC6,
+	.xout_l				= KX022A_REG_XOUT_L,
+	.get_fifo_bytes_available	= kx022a_get_fifo_bytes_available,
+};
+EXPORT_SYMBOL_NS_GPL(kx132acr_chip_info, IIO_KX022A);
+
+int kx022a_probe_internal(struct device *dev, const struct kx022a_chip_info *chip_info)
 {
 	static const char * const regulator_names[] = {"io-vdd", "vdd"};
 	struct iio_trigger *indio_trig;
@@ -1027,6 +1262,7 @@ int kx022a_probe_internal(struct device *dev)
 		return -ENOMEM;
 
 	data = iio_priv(idev);
+	data->chip_info = chip_info;
 
 	/*
 	 * VDD is the analog and digital domain voltage supply and
@@ -1037,26 +1273,24 @@ int kx022a_probe_internal(struct device *dev)
 	if (ret && ret != -ENODEV)
 		return dev_err_probe(dev, ret, "failed to enable regulator\n");
 
-	ret = regmap_read(regmap, KX022A_REG_WHO, &chip_id);
+	ret = regmap_read(regmap, chip_info->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;
-	}
+	if (chip_id != chip_info->id)
+		dev_warn(dev, "unknown device 0x%x\n", chip_id);
 
 	irq = fwnode_irq_get_byname(fwnode, "INT1");
 	if (irq > 0) {
-		data->inc_reg = KX022A_REG_INC1;
-		data->ien_reg = KX022A_REG_INC4;
+		data->inc_reg = chip_info->inc1;
+		data->ien_reg = chip_info->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->inc_reg = chip_info->inc5;
+		data->ien_reg = chip_info->inc6;
 	}
 
 	data->regmap = regmap;
@@ -1065,9 +1299,9 @@ int kx022a_probe_internal(struct device *dev)
 	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->channels = chip_info->channels;
+	idev->num_channels = chip_info->num_channels;
+	idev->name = chip_info->name;
 	idev->info = &kx022a_info;
 	idev->modes = INDIO_DIRECT_MODE | INDIO_BUFFER_SOFTWARE;
 	idev->available_scan_masks = kx022a_scan_masks;
@@ -1125,7 +1359,6 @@ int kx022a_probe_internal(struct device *dev)
 	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,
diff --git a/drivers/iio/accel/kionix-kx022a.h b/drivers/iio/accel/kionix-kx022a.h
index 12424649d4..7060438ad8 100644
--- a/drivers/iio/accel/kionix-kx022a.h
+++ b/drivers/iio/accel/kionix-kx022a.h
@@ -13,6 +13,7 @@
 
 #define KX022A_REG_WHO		0x0f
 #define KX022A_ID		0xc8
+#define KX132ACR_LBZ_ID		0xd8
 
 #define KX022A_REG_CNTL2	0x19
 #define KX022A_MASK_SRST	BIT(7)
@@ -74,9 +75,118 @@
 #define KX022A_REG_SELF_TEST	0x60
 #define KX022A_MAX_REGISTER	0x60
 
+#define KX132_REG_WHO		0x13
+#define KX132_ID		0x3d
+
+#define KX132_FIFO_LENGTH	86
+
+#define KX132_REG_CNTL		0x1b
+#define KX132_REG_CNTL2		0x1c
+#define KX132_REG_CNTL5		0x1f
+#define KX132_MASK_RES		BIT(6)
+#define KX132_GSEL_2		0x0
+#define KX132_GSEL_4		BIT(3)
+#define KX132_GSEL_8		BIT(4)
+#define KX132_GSEL_16		GENMASK(4, 3)
+
+#define KX132_REG_INS2		0x17
+#define KX132_MASK_INS2_WMI	BIT(5)
+
+#define KX132_REG_XADP_L	0x02
+#define KX132_REG_XOUT_L	0x08
+#define KX132_REG_YOUT_L	0x0a
+#define KX132_REG_ZOUT_L	0x0c
+#define KX132_REG_COTR		0x12
+#define KX132_REG_TSCP		0x14
+#define KX132_REG_INT_REL	0x1a
+
+#define KX132_REG_ODCNTL	0x21
+
+#define KX132_REG_BTS_WUF_TH	0x4a
+
+#define KX132_REG_BUF_CNTL1	0x5e
+#define KX132_REG_BUF_CNTL2	0x5f
+#define KX132_REG_BUF_STATUS_1	0x60
+#define KX132_REG_BUF_STATUS_2	0x61
+#define KX132_MASK_BUF_SMP_LVL	GENMASK(9, 0)
+#define KX132_REG_BUF_CLEAR	0x62
+#define KX132_REG_BUF_READ	0x63
+#define KX132_ODR_SHIFT		3
+#define KX132_FIFO_MAX_WMI_TH	86
+
+#define KX132_REG_INC1		0x22
+#define KX132_REG_INC5		0x26
+#define KX132_REG_INC6		0x27
+#define KX132_IPOL_LOW		0
+#define KX132_IPOL_HIGH		KX022A_MASK_IPOL
+#define KX132_ITYP_PULSE	KX022A_MASK_ITYP
+
+#define KX132_REG_INC4		0x25
+
+#define KX132_REG_SELF_TEST	0x5d
+#define KX132_MAX_REGISTER	0x76
+
 struct device;
 
-int kx022a_probe_internal(struct device *dev);
-extern const struct regmap_config kx022a_regmap;
+struct kx022a_data;
+
+/**
+ * struct kx022a_chip_info - Kionix accelerometer chip specific information
+ *
+ * @name:			name of the device
+ * @regmap_config:		pointer to register map configuration
+ * @channels:			pointer to iio_chan_spec array
+ * @num_channels:		number of iio_chan_spec channels
+ * @fifo_length:		number of 16-bit samples in a full buffer
+ * @buf_smp_lvl_mask:		buffer sample level mask
+ * @who:			WHO_AM_I register
+ * @id:				WHO_AM_I register value
+ * @cntl:			control register 1
+ * @cntl2:			control register 2
+ * @odcntl:			output data control register
+ * @buf_cntl1:			buffer control register 1
+ * @buf_cntl2:			buffer control register 2
+ * @buf_clear:			buffer clear register
+ * @buf_status1:		buffer status register 1
+ * @buf_read:			buffer read register
+ * @inc1:			interrupt control register 1
+ * @inc4:			interrupt control register 4
+ * @inc5:			interrupt control register 5
+ * @inc6:			interrupt control register 6
+ * @xout_l:			x-axis output least significant byte
+ * @get_fifo_bytes_available:	function pointer to get amount of acceleration
+ *				data bytes currently stored in the sensor's FIFO
+ *				buffer
+ */
+struct kx022a_chip_info {
+	const char *name;
+	const struct regmap_config *regmap_config;
+	const struct iio_chan_spec *channels;
+	unsigned int num_channels;
+	unsigned int fifo_length;
+	u16 buf_smp_lvl_mask;
+	u8 who;
+	u8 id;
+	u8 cntl;
+	u8 cntl2;
+	u8 odcntl;
+	u8 buf_cntl1;
+	u8 buf_cntl2;
+	u8 buf_clear;
+	u8 buf_status1;
+	u8 buf_read;
+	u8 inc1;
+	u8 inc4;
+	u8 inc5;
+	u8 inc6;
+	u8 xout_l;
+	int (*get_fifo_bytes_available)(struct kx022a_data *);
+};
+
+int kx022a_probe_internal(struct device *dev, const struct kx022a_chip_info *chip_info);
+
+extern const struct kx022a_chip_info kx022a_chip_info;
+extern const struct kx022a_chip_info kx132_chip_info;
+extern const struct kx022a_chip_info kx132acr_chip_info;
 
 #endif
diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index f42a887114..d3fd0318e4 100644
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -1535,19 +1535,18 @@ static int mma8452_reset(struct i2c_client *client)
 }
 
 static const struct of_device_id mma8452_dt_ids[] = {
+	{ .compatible = "fsl,fxls8471", .data = &mma_chip_info_table[fxls8471] },
 	{ .compatible = "fsl,mma8451", .data = &mma_chip_info_table[mma8451] },
 	{ .compatible = "fsl,mma8452", .data = &mma_chip_info_table[mma8452] },
 	{ .compatible = "fsl,mma8453", .data = &mma_chip_info_table[mma8453] },
 	{ .compatible = "fsl,mma8652", .data = &mma_chip_info_table[mma8652] },
 	{ .compatible = "fsl,mma8653", .data = &mma_chip_info_table[mma8653] },
-	{ .compatible = "fsl,fxls8471", .data = &mma_chip_info_table[fxls8471] },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, mma8452_dt_ids);
 
 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;
@@ -1560,15 +1559,10 @@ static int mma8452_probe(struct i2c_client *client)
 	data->client = client;
 	mutex_init(&data->lock);
 
-	data->chip_info = device_get_match_data(&client->dev);
-	if (!data->chip_info) {
-		if (id) {
-			data->chip_info = &mma_chip_info_table[id->driver_data];
-		} else {
-			dev_err(&client->dev, "unknown device model\n");
-			return -ENODEV;
-		}
-	}
+	data->chip_info = i2c_get_match_data(client);
+	if (!data->chip_info)
+		return dev_err_probe(&client->dev, -ENODEV,
+				     "unknown device model\n");
 
 	ret = iio_read_mount_matrix(&client->dev, &data->orientation);
 	if (ret)
@@ -1830,12 +1824,12 @@ static const struct dev_pm_ops mma8452_pm_ops = {
 };
 
 static const struct i2c_device_id mma8452_id[] = {
-	{ "mma8451", mma8451 },
-	{ "mma8452", mma8452 },
-	{ "mma8453", mma8453 },
-	{ "mma8652", mma8652 },
-	{ "mma8653", mma8653 },
-	{ "fxls8471", fxls8471 },
+	{ "fxls8471", (kernel_ulong_t)&mma_chip_info_table[fxls8471] },
+	{ "mma8451", (kernel_ulong_t)&mma_chip_info_table[mma8451] },
+	{ "mma8452", (kernel_ulong_t)&mma_chip_info_table[mma8452] },
+	{ "mma8453", (kernel_ulong_t)&mma_chip_info_table[mma8453] },
+	{ "mma8652", (kernel_ulong_t)&mma_chip_info_table[mma8652] },
+	{ "mma8653", (kernel_ulong_t)&mma_chip_info_table[mma8653] },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, mma8452_id);
diff --git a/drivers/iio/accel/msa311.c b/drivers/iio/accel/msa311.c
index 6ddcc3c2f8..b8ddbfd98f 100644
--- a/drivers/iio/accel/msa311.c
+++ b/drivers/iio/accel/msa311.c
@@ -33,7 +33,7 @@
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
-#include <linux/string_helpers.h>
+#include <linux/string_choices.h>
 #include <linux/units.h>
 
 #include <linux/iio/buffer.h>
diff --git a/drivers/iio/accel/mxc4005.c b/drivers/iio/accel/mxc4005.c
index 75d142bc14..82e8d0b390 100644
--- a/drivers/iio/accel/mxc4005.c
+++ b/drivers/iio/accel/mxc4005.c
@@ -476,6 +476,13 @@ static const struct acpi_device_id mxc4005_acpi_match[] = {
 };
 MODULE_DEVICE_TABLE(acpi, mxc4005_acpi_match);
 
+static const struct of_device_id mxc4005_of_match[] = {
+	{ .compatible = "memsic,mxc4005", },
+	{ .compatible = "memsic,mxc6655", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, mxc4005_of_match);
+
 static const struct i2c_device_id mxc4005_id[] = {
 	{"mxc4005",	0},
 	{"mxc6655",	0},
@@ -487,6 +494,7 @@ static struct i2c_driver mxc4005_driver = {
 	.driver = {
 		.name = MXC4005_DRV_NAME,
 		.acpi_match_table = ACPI_PTR(mxc4005_acpi_match),
+		.of_match_table = mxc4005_of_match,
 	},
 	.probe		= mxc4005_probe,
 	.id_table	= mxc4005_id,
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 517b3db114..35f9867da1 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -607,6 +607,16 @@ config LPC32XX_ADC
 	  activate only one via device tree selection.  Provides direct access
 	  via sysfs.
 
+config LTC2309
+	tristate "Linear Technology LTC2309 ADC driver"
+	depends on I2C
+	help
+	  Say yes here to build support for Linear Technology LTC2309, a low
+	  noise, low power, 8-channel, 12-bit SAR ADC
+
+	  This driver can also be built as a module. If so, the module will
+	  be called ltc2309.
+
 config LTC2471
 	tristate "Linear Technology LTC2471 and LTC2473 ADC driver"
 	depends on I2C
@@ -779,14 +789,29 @@ config MCP3422
 	  This driver can also be built as a module. If so, the module will be
 	  called mcp3422.
 
+config MCP3564
+        tristate "Microchip Technology MCP3461/2/4/R, MCP3561/2/4/R driver"
+        depends on SPI
+        depends on IIO
+        help
+          Say yes here to build support for Microchip Technology's MCP3461,
+          MCP3462, MCP3464, MCP3461R, MCP3462R, MCP3464R, MCP3561, MCP3562,
+          MCP3564, MCP3561R, MCP3562R and MCP3564R analog to digital
+          converters.
+
+          This driver can also be built as a module. If so, the module will be
+          called mcp3564.
+
 config MCP3911
 	tristate "Microchip Technology MCP3911 driver"
 	depends on SPI
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	help
-	  Say yes here to build support for Microchip Technology's MCP3911
-	  analog to digital converter.
+	  Say yes here to build support for one of the following
+	  Microchip Technology's analog to digital converters:
+	  MCP3910, MCP3911, MCP3912, MCP3913, MCP3914,
+	  MCP3918 and MCP3919.
 
 	  This driver can also be built as a module. If so, the module will be
 	  called mcp3911.
diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile
index 2facf97932..bee11d442a 100644
--- a/drivers/iio/adc/Makefile
+++ b/drivers/iio/adc/Makefile
@@ -56,6 +56,7 @@ obj-$(CONFIG_INTEL_MRFLD_ADC) += intel_mrfld_adc.o
 obj-$(CONFIG_LP8788_ADC) += lp8788_adc.o
 obj-$(CONFIG_LPC18XX_ADC) += lpc18xx_adc.o
 obj-$(CONFIG_LPC32XX_ADC) += lpc32xx_adc.o
+obj-$(CONFIG_LTC2309) += ltc2309.o
 obj-$(CONFIG_LTC2471) += ltc2471.o
 obj-$(CONFIG_LTC2485) += ltc2485.o
 obj-$(CONFIG_LTC2496) += ltc2496.o ltc2497-core.o
@@ -71,6 +72,7 @@ obj-$(CONFIG_MAX77541_ADC) += max77541-adc.o
 obj-$(CONFIG_MAX9611) += max9611.o
 obj-$(CONFIG_MCP320X) += mcp320x.o
 obj-$(CONFIG_MCP3422) += mcp3422.o
+obj-$(CONFIG_MCP3564) += mcp3564.o
 obj-$(CONFIG_MCP3911) += mcp3911.o
 obj-$(CONFIG_MEDIATEK_MT6360_ADC) += mt6360-adc.o
 obj-$(CONFIG_MEDIATEK_MT6370_ADC) += mt6370-adc.o
diff --git a/drivers/iio/adc/ab8500-gpadc.c b/drivers/iio/adc/ab8500-gpadc.c
index 3b1bdd0b53..80645fee79 100644
--- a/drivers/iio/adc/ab8500-gpadc.c
+++ b/drivers/iio/adc/ab8500-gpadc.c
@@ -1179,7 +1179,7 @@ out_dis_pm:
 	return ret;
 }
 
-static int ab8500_gpadc_remove(struct platform_device *pdev)
+static void ab8500_gpadc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct ab8500_gpadc *gpadc = iio_priv(indio_dev);
@@ -1188,8 +1188,6 @@ static int ab8500_gpadc_remove(struct platform_device *pdev)
 	pm_runtime_put_noidle(gpadc->dev);
 	pm_runtime_disable(gpadc->dev);
 	regulator_disable(gpadc->vddadc);
-
-	return 0;
 }
 
 static DEFINE_RUNTIME_DEV_PM_OPS(ab8500_gpadc_pm_ops,
@@ -1198,7 +1196,7 @@ static DEFINE_RUNTIME_DEV_PM_OPS(ab8500_gpadc_pm_ops,
 
 static struct platform_driver ab8500_gpadc_driver = {
 	.probe = ab8500_gpadc_probe,
-	.remove = ab8500_gpadc_remove,
+	.remove_new = ab8500_gpadc_remove,
 	.driver = {
 		.name = "ab8500-gpadc",
 		.pm = pm_ptr(&ab8500_gpadc_pm_ops),
diff --git a/drivers/iio/adc/ad4130.c b/drivers/iio/adc/ad4130.c
index 5a5dd5e87f..62490424b6 100644
--- a/drivers/iio/adc/ad4130.c
+++ b/drivers/iio/adc/ad4130.c
@@ -1817,18 +1817,12 @@ static const struct clk_ops ad4130_int_clk_ops = {
 	.unprepare = ad4130_int_clk_unprepare,
 };
 
-static void ad4130_clk_del_provider(void *of_node)
-{
-	of_clk_del_provider(of_node);
-}
-
 static int ad4130_setup_int_clk(struct ad4130_state *st)
 {
 	struct device *dev = &st->spi->dev;
 	struct device_node *of_node = dev_of_node(dev);
-	struct clk_init_data init;
+	struct clk_init_data init = {};
 	const char *clk_name;
-	struct clk *clk;
 	int ret;
 
 	if (st->int_pin_sel == AD4130_INT_PIN_CLK ||
@@ -1845,15 +1839,12 @@ static int ad4130_setup_int_clk(struct ad4130_state *st)
 	init.ops = &ad4130_int_clk_ops;
 
 	st->int_clk_hw.init = &init;
-	clk = devm_clk_register(dev, &st->int_clk_hw);
-	if (IS_ERR(clk))
-		return PTR_ERR(clk);
-
-	ret = of_clk_add_provider(of_node, of_clk_src_simple_get, clk);
+	ret = devm_clk_hw_register(dev, &st->int_clk_hw);
 	if (ret)
 		return ret;
 
-	return devm_add_action_or_reset(dev, ad4130_clk_del_provider, of_node);
+	return devm_of_clk_add_hw_provider(dev, of_clk_hw_simple_get,
+					   &st->int_clk_hw);
 }
 
 static int ad4130_setup(struct iio_dev *indio_dev)
@@ -1900,10 +1891,14 @@ static int ad4130_setup(struct iio_dev *indio_dev)
 		return ret;
 
 	/*
-	 * Configure all GPIOs for output. If configured, the interrupt function
-	 * of P2 takes priority over the GPIO out function.
+	 * Configure unused GPIOs for output. If configured, the interrupt
+	 * function of P2 takes priority over the GPIO out function.
 	 */
-	val =  AD4130_IO_CONTROL_GPIO_CTRL_MASK;
+	val = 0;
+	for (i = 0; i < AD4130_MAX_GPIOS; i++)
+		if (st->pins_fn[i + AD4130_AIN2_P1] == AD4130_PIN_FN_NONE)
+			val |= FIELD_PREP(AD4130_IO_CONTROL_GPIO_CTRL_MASK, BIT(i));
+
 	val |= FIELD_PREP(AD4130_IO_CONTROL_INT_PIN_SEL_MASK, st->int_pin_sel);
 
 	ret = regmap_write(st->regmap, AD4130_IO_CONTROL_REG, val);
diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c
index b64fd365f8..adc3cbe92d 100644
--- a/drivers/iio/adc/ad7192.c
+++ b/drivers/iio/adc/ad7192.c
@@ -6,6 +6,7 @@
  */
 
 #include <linux/interrupt.h>
+#include <linux/bitfield.h>
 #include <linux/clk.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
@@ -43,7 +44,7 @@
 #define AD7192_COMM_WEN		BIT(7) /* Write Enable */
 #define AD7192_COMM_WRITE	0 /* Write Operation */
 #define AD7192_COMM_READ	BIT(6) /* Read Operation */
-#define AD7192_COMM_ADDR(x)	(((x) & 0x7) << 3) /* Register Address */
+#define AD7192_COMM_ADDR_MASK	GENMASK(5, 3) /* Register Address Mask */
 #define AD7192_COMM_CREAD	BIT(2) /* Continuous Read of Data Register */
 
 /* Status Register Bit Designations (AD7192_REG_STAT) */
@@ -56,17 +57,18 @@
 #define AD7192_STAT_CH1		BIT(0) /* Channel 1 */
 
 /* Mode Register Bit Designations (AD7192_REG_MODE) */
-#define AD7192_MODE_SEL(x)	(((x) & 0x7) << 21) /* Operation Mode Select */
-#define AD7192_MODE_SEL_MASK	(0x7 << 21) /* Operation Mode Select Mask */
-#define AD7192_MODE_STA(x)	(((x) & 0x1) << 20) /* Status Register transmission */
+#define AD7192_MODE_SEL_MASK	GENMASK(23, 21) /* Operation Mode Select Mask */
 #define AD7192_MODE_STA_MASK	BIT(20) /* Status Register transmission Mask */
-#define AD7192_MODE_CLKSRC(x)	(((x) & 0x3) << 18) /* Clock Source Select */
+#define AD7192_MODE_CLKSRC_MASK	GENMASK(19, 18) /* Clock Source Select Mask */
+#define AD7192_MODE_AVG_MASK	GENMASK(17, 16)
+		  /* Fast Settling Filter Average Select Mask (AD7193 only) */
 #define AD7192_MODE_SINC3	BIT(15) /* SINC3 Filter Select */
 #define AD7192_MODE_ENPAR	BIT(13) /* Parity Enable */
 #define AD7192_MODE_CLKDIV	BIT(12) /* Clock divide by 2 (AD7190/2 only)*/
 #define AD7192_MODE_SCYCLE	BIT(11) /* Single cycle conversion */
 #define AD7192_MODE_REJ60	BIT(10) /* 50/60Hz notch filter */
-#define AD7192_MODE_RATE(x)	((x) & 0x3FF) /* Filter Update Rate Select */
+				  /* Filter Update Rate Select Mask */
+#define AD7192_MODE_RATE_MASK	GENMASK(9, 0)
 
 /* Mode Register: AD7192_MODE_SEL options */
 #define AD7192_MODE_CONT		0 /* Continuous Conversion Mode */
@@ -92,13 +94,12 @@
 #define AD7192_CONF_CHOP	BIT(23) /* CHOP enable */
 #define AD7192_CONF_ACX		BIT(22) /* AC excitation enable(AD7195 only) */
 #define AD7192_CONF_REFSEL	BIT(20) /* REFIN1/REFIN2 Reference Select */
-#define AD7192_CONF_CHAN(x)	((x) << 8) /* Channel select */
-#define AD7192_CONF_CHAN_MASK	(0x7FF << 8) /* Channel select mask */
+#define AD7192_CONF_CHAN_MASK	GENMASK(18, 8) /* Channel select mask */
 #define AD7192_CONF_BURN	BIT(7) /* Burnout current enable */
 #define AD7192_CONF_REFDET	BIT(6) /* Reference detect enable */
 #define AD7192_CONF_BUF		BIT(4) /* Buffered Mode Enable */
 #define AD7192_CONF_UNIPOLAR	BIT(3) /* Unipolar/Bipolar Enable */
-#define AD7192_CONF_GAIN(x)	((x) & 0x7) /* Gain Select */
+#define AD7192_CONF_GAIN_MASK	GENMASK(2, 0) /* Gain Select */
 
 #define AD7192_CH_AIN1P_AIN2M	BIT(0) /* AIN1(+) - AIN2(-) */
 #define AD7192_CH_AIN3P_AIN4M	BIT(1) /* AIN3(+) - AIN4(-) */
@@ -130,7 +131,7 @@
 #define CHIPID_AD7192		0x0
 #define CHIPID_AD7193		0x2
 #define CHIPID_AD7195		0x6
-#define AD7192_ID_MASK		0x0F
+#define AD7192_ID_MASK		GENMASK(3, 0)
 
 /* GPOCON Register Bit Designations (AD7192_REG_GPOCON) */
 #define AD7192_GPOCON_BPDSW	BIT(6) /* Bridge power-down switch enable */
@@ -172,6 +173,9 @@ enum {
 struct ad7192_chip_info {
 	unsigned int			chip_id;
 	const char			*name;
+	const struct iio_chan_spec	*channels;
+	u8				num_channels;
+	const struct iio_info		*info;
 };
 
 struct ad7192_state {
@@ -181,10 +185,10 @@ struct ad7192_state {
 	struct clk			*mclk;
 	u16				int_vref_mv;
 	u32				fclk;
-	u32				f_order;
 	u32				mode;
 	u32				conf;
 	u32				scale_avail[8][2];
+	u32				oversampling_ratio_avail[4];
 	u8				gpocon;
 	u8				clock_sel;
 	struct mutex			lock;	/* protect sensor state */
@@ -273,7 +277,7 @@ static int ad7192_set_channel(struct ad_sigma_delta *sd, unsigned int channel)
 	struct ad7192_state *st = ad_sigma_delta_to_ad7192(sd);
 
 	st->conf &= ~AD7192_CONF_CHAN_MASK;
-	st->conf |= AD7192_CONF_CHAN(channel);
+	st->conf |= FIELD_PREP(AD7192_CONF_CHAN_MASK, channel);
 
 	return ad_sd_write_reg(&st->sd, AD7192_REG_CONF, 3, st->conf);
 }
@@ -284,7 +288,7 @@ static int ad7192_set_mode(struct ad_sigma_delta *sd,
 	struct ad7192_state *st = ad_sigma_delta_to_ad7192(sd);
 
 	st->mode &= ~AD7192_MODE_SEL_MASK;
-	st->mode |= AD7192_MODE_SEL(mode);
+	st->mode |= FIELD_PREP(AD7192_MODE_SEL_MASK, mode);
 
 	return ad_sd_write_reg(&st->sd, AD7192_REG_MODE, 3, st->mode);
 }
@@ -296,7 +300,7 @@ static int ad7192_append_status(struct ad_sigma_delta *sd, bool append)
 	int ret;
 
 	mode &= ~AD7192_MODE_STA_MASK;
-	mode |= AD7192_MODE_STA(append);
+	mode |= FIELD_PREP(AD7192_MODE_STA_MASK, append);
 
 	ret = ad_sd_write_reg(&st->sd, AD7192_REG_MODE, 3, mode);
 	if (ret < 0)
@@ -400,17 +404,17 @@ static int ad7192_setup(struct iio_dev *indio_dev, struct device_node *np)
 	if (ret)
 		return ret;
 
-	id &= AD7192_ID_MASK;
+	id = FIELD_GET(AD7192_ID_MASK, id);
 
 	if (id != st->chip_info->chip_id)
 		dev_warn(&st->sd.spi->dev, "device ID query failed (0x%X != 0x%X)\n",
 			 id, st->chip_info->chip_id);
 
-	st->mode = AD7192_MODE_SEL(AD7192_MODE_IDLE) |
-		AD7192_MODE_CLKSRC(st->clock_sel) |
-		AD7192_MODE_RATE(480);
+	st->mode = FIELD_PREP(AD7192_MODE_SEL_MASK, AD7192_MODE_IDLE) |
+		FIELD_PREP(AD7192_MODE_CLKSRC_MASK, st->clock_sel) |
+		FIELD_PREP(AD7192_MODE_RATE_MASK, 480);
 
-	st->conf = AD7192_CONF_GAIN(0);
+	st->conf = FIELD_PREP(AD7192_CONF_GAIN_MASK, 0);
 
 	rej60_en = of_property_read_bool(np, "adi,rejection-60-Hz-enable");
 	if (rej60_en)
@@ -421,7 +425,6 @@ static int ad7192_setup(struct iio_dev *indio_dev, struct device_node *np)
 		st->conf |= AD7192_CONF_REFSEL;
 
 	st->conf &= ~AD7192_CONF_CHOP;
-	st->f_order = AD7192_NO_SYNC_FILTER;
 
 	buf_en = of_property_read_bool(np, "adi,buffer-enable");
 	if (buf_en)
@@ -456,13 +459,18 @@ static int ad7192_setup(struct iio_dev *indio_dev, struct device_node *np)
 	for (i = 0; i < ARRAY_SIZE(st->scale_avail); i++) {
 		scale_uv = ((u64)st->int_vref_mv * 100000000)
 			>> (indio_dev->channels[0].scan_type.realbits -
-			((st->conf & AD7192_CONF_UNIPOLAR) ? 0 : 1));
+			!FIELD_GET(AD7192_CONF_UNIPOLAR, st->conf));
 		scale_uv >>= i;
 
 		st->scale_avail[i][1] = do_div(scale_uv, 100000000) * 10;
 		st->scale_avail[i][0] = scale_uv;
 	}
 
+	st->oversampling_ratio_avail[0] = 1;
+	st->oversampling_ratio_avail[1] = 2;
+	st->oversampling_ratio_avail[2] = 8;
+	st->oversampling_ratio_avail[3] = 16;
+
 	return 0;
 }
 
@@ -473,7 +481,7 @@ static ssize_t ad7192_show_ac_excitation(struct device *dev,
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad7192_state *st = iio_priv(indio_dev);
 
-	return sysfs_emit(buf, "%d\n", !!(st->conf & AD7192_CONF_ACX));
+	return sysfs_emit(buf, "%ld\n", FIELD_GET(AD7192_CONF_ACX, st->conf));
 }
 
 static ssize_t ad7192_show_bridge_switch(struct device *dev,
@@ -483,7 +491,8 @@ static ssize_t ad7192_show_bridge_switch(struct device *dev,
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad7192_state *st = iio_priv(indio_dev);
 
-	return sysfs_emit(buf, "%d\n", !!(st->gpocon & AD7192_GPOCON_BPDSW));
+	return sysfs_emit(buf, "%ld\n",
+			  FIELD_GET(AD7192_GPOCON_BPDSW, st->gpocon));
 }
 
 static ssize_t ad7192_set(struct device *dev,
@@ -531,22 +540,66 @@ static ssize_t ad7192_set(struct device *dev,
 	return ret ? ret : len;
 }
 
+static int ad7192_compute_f_order(struct ad7192_state *st, bool sinc3_en, bool chop_en)
+{
+	u8 avg_factor_selected, oversampling_ratio;
+
+	avg_factor_selected = FIELD_GET(AD7192_MODE_AVG_MASK, st->mode);
+
+	if (!avg_factor_selected && !chop_en)
+		return 1;
+
+	oversampling_ratio = st->oversampling_ratio_avail[avg_factor_selected];
+
+	if (sinc3_en)
+		return AD7192_SYNC3_FILTER + oversampling_ratio - 1;
+
+	return AD7192_SYNC4_FILTER + oversampling_ratio - 1;
+}
+
+static int ad7192_get_f_order(struct ad7192_state *st)
+{
+	bool sinc3_en, chop_en;
+
+	sinc3_en = FIELD_GET(AD7192_MODE_SINC3, st->mode);
+	chop_en = FIELD_GET(AD7192_CONF_CHOP, st->conf);
+
+	return ad7192_compute_f_order(st, sinc3_en, chop_en);
+}
+
+static int ad7192_compute_f_adc(struct ad7192_state *st, bool sinc3_en,
+				bool chop_en)
+{
+	unsigned int f_order = ad7192_compute_f_order(st, sinc3_en, chop_en);
+
+	return DIV_ROUND_CLOSEST(st->fclk,
+				 f_order * FIELD_GET(AD7192_MODE_RATE_MASK, st->mode));
+}
+
+static int ad7192_get_f_adc(struct ad7192_state *st)
+{
+	unsigned int f_order = ad7192_get_f_order(st);
+
+	return DIV_ROUND_CLOSEST(st->fclk,
+				 f_order * FIELD_GET(AD7192_MODE_RATE_MASK, st->mode));
+}
+
 static void ad7192_get_available_filter_freq(struct ad7192_state *st,
 						    int *freq)
 {
 	unsigned int fadc;
 
 	/* Formulas for filter at page 25 of the datasheet */
-	fadc = DIV_ROUND_CLOSEST(st->fclk,
-				 AD7192_SYNC4_FILTER * AD7192_MODE_RATE(st->mode));
+	fadc = ad7192_compute_f_adc(st, false, true);
 	freq[0] = DIV_ROUND_CLOSEST(fadc * 240, 1024);
 
-	fadc = DIV_ROUND_CLOSEST(st->fclk,
-				 AD7192_SYNC3_FILTER * AD7192_MODE_RATE(st->mode));
+	fadc = ad7192_compute_f_adc(st, true, true);
 	freq[1] = DIV_ROUND_CLOSEST(fadc * 240, 1024);
 
-	fadc = DIV_ROUND_CLOSEST(st->fclk, AD7192_MODE_RATE(st->mode));
+	fadc = ad7192_compute_f_adc(st, false, false);
 	freq[2] = DIV_ROUND_CLOSEST(fadc * 230, 1024);
+
+	fadc = ad7192_compute_f_adc(st, true, false);
 	freq[3] = DIV_ROUND_CLOSEST(fadc * 272, 1024);
 }
 
@@ -629,25 +682,21 @@ static int ad7192_set_3db_filter_freq(struct ad7192_state *st,
 
 	switch (idx) {
 	case 0:
-		st->f_order = AD7192_SYNC4_FILTER;
 		st->mode &= ~AD7192_MODE_SINC3;
 
 		st->conf |= AD7192_CONF_CHOP;
 		break;
 	case 1:
-		st->f_order = AD7192_SYNC3_FILTER;
 		st->mode |= AD7192_MODE_SINC3;
 
 		st->conf |= AD7192_CONF_CHOP;
 		break;
 	case 2:
-		st->f_order = AD7192_NO_SYNC_FILTER;
 		st->mode &= ~AD7192_MODE_SINC3;
 
 		st->conf &= ~AD7192_CONF_CHOP;
 		break;
 	case 3:
-		st->f_order = AD7192_NO_SYNC_FILTER;
 		st->mode |= AD7192_MODE_SINC3;
 
 		st->conf &= ~AD7192_CONF_CHOP;
@@ -665,12 +714,11 @@ static int ad7192_get_3db_filter_freq(struct ad7192_state *st)
 {
 	unsigned int fadc;
 
-	fadc = DIV_ROUND_CLOSEST(st->fclk,
-				 st->f_order * AD7192_MODE_RATE(st->mode));
+	fadc = ad7192_get_f_adc(st);
 
-	if (st->conf & AD7192_CONF_CHOP)
+	if (FIELD_GET(AD7192_CONF_CHOP, st->conf))
 		return DIV_ROUND_CLOSEST(fadc * 240, 1024);
-	if (st->mode & AD7192_MODE_SINC3)
+	if (FIELD_GET(AD7192_MODE_SINC3, st->mode))
 		return DIV_ROUND_CLOSEST(fadc * 272, 1024);
 	else
 		return DIV_ROUND_CLOSEST(fadc * 230, 1024);
@@ -683,7 +731,8 @@ static int ad7192_read_raw(struct iio_dev *indio_dev,
 			   long m)
 {
 	struct ad7192_state *st = iio_priv(indio_dev);
-	bool unipolar = !!(st->conf & AD7192_CONF_UNIPOLAR);
+	bool unipolar = FIELD_GET(AD7192_CONF_UNIPOLAR, st->conf);
+	u8 gain = FIELD_GET(AD7192_CONF_GAIN_MASK, st->conf);
 
 	switch (m) {
 	case IIO_CHAN_INFO_RAW:
@@ -692,8 +741,8 @@ static int ad7192_read_raw(struct iio_dev *indio_dev,
 		switch (chan->type) {
 		case IIO_VOLTAGE:
 			mutex_lock(&st->lock);
-			*val = st->scale_avail[AD7192_CONF_GAIN(st->conf)][0];
-			*val2 = st->scale_avail[AD7192_CONF_GAIN(st->conf)][1];
+			*val = st->scale_avail[gain][0];
+			*val2 = st->scale_avail[gain][1];
 			mutex_unlock(&st->lock);
 			return IIO_VAL_INT_PLUS_NANO;
 		case IIO_TEMP:
@@ -713,13 +762,15 @@ static int ad7192_read_raw(struct iio_dev *indio_dev,
 			*val -= 273 * ad7192_get_temp_scale(unipolar);
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SAMP_FREQ:
-		*val = st->fclk /
-			(st->f_order * 1024 * AD7192_MODE_RATE(st->mode));
+		*val = DIV_ROUND_CLOSEST(ad7192_get_f_adc(st), 1024);
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
 		*val = ad7192_get_3db_filter_freq(st);
 		*val2 = 1000;
 		return IIO_VAL_FRACTIONAL;
+	case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
+		*val = st->oversampling_ratio_avail[FIELD_GET(AD7192_MODE_AVG_MASK, st->mode)];
+		return IIO_VAL_INT;
 	}
 
 	return -EINVAL;
@@ -747,8 +798,8 @@ static int ad7192_write_raw(struct iio_dev *indio_dev,
 			if (val2 == st->scale_avail[i][1]) {
 				ret = 0;
 				tmp = st->conf;
-				st->conf &= ~AD7192_CONF_GAIN(-1);
-				st->conf |= AD7192_CONF_GAIN(i);
+				st->conf &= ~AD7192_CONF_GAIN_MASK;
+				st->conf |= FIELD_PREP(AD7192_CONF_GAIN_MASK, i);
 				if (tmp == st->conf)
 					break;
 				ad_sd_write_reg(&st->sd, AD7192_REG_CONF,
@@ -764,19 +815,36 @@ static int ad7192_write_raw(struct iio_dev *indio_dev,
 			break;
 		}
 
-		div = st->fclk / (val * st->f_order * 1024);
+		div = st->fclk / (val * ad7192_get_f_order(st) * 1024);
 		if (div < 1 || div > 1023) {
 			ret = -EINVAL;
 			break;
 		}
 
-		st->mode &= ~AD7192_MODE_RATE(-1);
-		st->mode |= AD7192_MODE_RATE(div);
+		st->mode &= ~AD7192_MODE_RATE_MASK;
+		st->mode |= FIELD_PREP(AD7192_MODE_RATE_MASK, div);
 		ad_sd_write_reg(&st->sd, AD7192_REG_MODE, 3, st->mode);
 		break;
 	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
 		ret = ad7192_set_3db_filter_freq(st, val, val2 / 1000);
 		break;
+	case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
+		ret = -EINVAL;
+		mutex_lock(&st->lock);
+		for (i = 0; i < ARRAY_SIZE(st->oversampling_ratio_avail); i++)
+			if (val == st->oversampling_ratio_avail[i]) {
+				ret = 0;
+				tmp = st->mode;
+				st->mode &= ~AD7192_MODE_AVG_MASK;
+				st->mode |= FIELD_PREP(AD7192_MODE_AVG_MASK, i);
+				if (tmp == st->mode)
+					break;
+				ad_sd_write_reg(&st->sd, AD7192_REG_MODE,
+						3, st->mode);
+				break;
+			}
+		mutex_unlock(&st->lock);
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -797,6 +865,8 @@ static int ad7192_write_raw_get_fmt(struct iio_dev *indio_dev,
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
 		return IIO_VAL_INT_PLUS_MICRO;
+	case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
+		return IIO_VAL_INT;
 	default:
 		return -EINVAL;
 	}
@@ -817,6 +887,12 @@ static int ad7192_read_avail(struct iio_dev *indio_dev,
 		*length = ARRAY_SIZE(st->scale_avail) * 2;
 
 		return IIO_AVAIL_LIST;
+	case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
+		*vals = (int *)st->oversampling_ratio_avail;
+		*type = IIO_VAL_INT;
+		*length = ARRAY_SIZE(st->oversampling_ratio_avail);
+
+		return IIO_AVAIL_LIST;
 	}
 
 	return -EINVAL;
@@ -831,7 +907,7 @@ static int ad7192_update_scan_mode(struct iio_dev *indio_dev, const unsigned lon
 
 	conf &= ~AD7192_CONF_CHAN_MASK;
 	for_each_set_bit(i, scan_mask, 8)
-		conf |= AD7192_CONF_CHAN(i);
+		conf |= FIELD_PREP(AD7192_CONF_CHAN_MASK, i);
 
 	ret = ad_sd_write_reg(&st->sd, AD7192_REG_CONF, 3, conf);
 	if (ret < 0)
@@ -862,8 +938,8 @@ static const struct iio_info ad7195_info = {
 	.update_scan_mode = ad7192_update_scan_mode,
 };
 
-#define __AD719x_CHANNEL(_si, _channel1, _channel2, _address, _extend_name, \
-	_type, _mask_type_av, _ext_info) \
+#define __AD719x_CHANNEL(_si, _channel1, _channel2, _address, _type, \
+	_mask_all, _mask_type_av, _mask_all_av, _ext_info) \
 	{ \
 		.type = (_type), \
 		.differential = ((_channel2) == -1 ? 0 : 1), \
@@ -871,13 +947,14 @@ static const struct iio_info ad7195_info = {
 		.channel = (_channel1), \
 		.channel2 = (_channel2), \
 		.address = (_address), \
-		.extend_name = (_extend_name), \
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
 			BIT(IIO_CHAN_INFO_OFFSET), \
 		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
 		.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ) | \
-			BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY), \
+			BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY) | \
+			(_mask_all), \
 		.info_mask_shared_by_type_available = (_mask_type_av), \
+		.info_mask_shared_by_all_available = (_mask_all_av), \
 		.ext_info = (_ext_info), \
 		.scan_index = (_si), \
 		.scan_type = { \
@@ -889,16 +966,26 @@ static const struct iio_info ad7195_info = {
 	}
 
 #define AD719x_DIFF_CHANNEL(_si, _channel1, _channel2, _address) \
-	__AD719x_CHANNEL(_si, _channel1, _channel2, _address, NULL, \
-		IIO_VOLTAGE, BIT(IIO_CHAN_INFO_SCALE), \
-		ad7192_calibsys_ext_info)
+	__AD719x_CHANNEL(_si, _channel1, _channel2, _address, IIO_VOLTAGE, 0, \
+		BIT(IIO_CHAN_INFO_SCALE), 0, ad7192_calibsys_ext_info)
 
 #define AD719x_CHANNEL(_si, _channel1, _address) \
-	__AD719x_CHANNEL(_si, _channel1, -1, _address, NULL, IIO_VOLTAGE, \
-		BIT(IIO_CHAN_INFO_SCALE), ad7192_calibsys_ext_info)
+	__AD719x_CHANNEL(_si, _channel1, -1, _address, IIO_VOLTAGE, 0, \
+		BIT(IIO_CHAN_INFO_SCALE), 0, ad7192_calibsys_ext_info)
 
 #define AD719x_TEMP_CHANNEL(_si, _address) \
-	__AD719x_CHANNEL(_si, 0, -1, _address, NULL, IIO_TEMP, 0, NULL)
+	__AD719x_CHANNEL(_si, 0, -1, _address, IIO_TEMP, 0, 0, 0, NULL)
+
+#define AD7193_DIFF_CHANNEL(_si, _channel1, _channel2, _address) \
+	__AD719x_CHANNEL(_si, _channel1, _channel2, _address, \
+		IIO_VOLTAGE, \
+		BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), \
+		BIT(IIO_CHAN_INFO_SCALE), \
+		BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), \
+		ad7192_calibsys_ext_info)
+
+#define AD7193_CHANNEL(_si, _channel1, _address) \
+	AD7193_DIFF_CHANNEL(_si, _channel1, -1, _address)
 
 static const struct iio_chan_spec ad7192_channels[] = {
 	AD719x_DIFF_CHANNEL(0, 1, 2, AD7192_CH_AIN1P_AIN2M),
@@ -913,20 +1000,20 @@ static const struct iio_chan_spec ad7192_channels[] = {
 };
 
 static const struct iio_chan_spec ad7193_channels[] = {
-	AD719x_DIFF_CHANNEL(0, 1, 2, AD7193_CH_AIN1P_AIN2M),
-	AD719x_DIFF_CHANNEL(1, 3, 4, AD7193_CH_AIN3P_AIN4M),
-	AD719x_DIFF_CHANNEL(2, 5, 6, AD7193_CH_AIN5P_AIN6M),
-	AD719x_DIFF_CHANNEL(3, 7, 8, AD7193_CH_AIN7P_AIN8M),
+	AD7193_DIFF_CHANNEL(0, 1, 2, AD7193_CH_AIN1P_AIN2M),
+	AD7193_DIFF_CHANNEL(1, 3, 4, AD7193_CH_AIN3P_AIN4M),
+	AD7193_DIFF_CHANNEL(2, 5, 6, AD7193_CH_AIN5P_AIN6M),
+	AD7193_DIFF_CHANNEL(3, 7, 8, AD7193_CH_AIN7P_AIN8M),
 	AD719x_TEMP_CHANNEL(4, AD7193_CH_TEMP),
-	AD719x_DIFF_CHANNEL(5, 2, 2, AD7193_CH_AIN2P_AIN2M),
-	AD719x_CHANNEL(6, 1, AD7193_CH_AIN1),
-	AD719x_CHANNEL(7, 2, AD7193_CH_AIN2),
-	AD719x_CHANNEL(8, 3, AD7193_CH_AIN3),
-	AD719x_CHANNEL(9, 4, AD7193_CH_AIN4),
-	AD719x_CHANNEL(10, 5, AD7193_CH_AIN5),
-	AD719x_CHANNEL(11, 6, AD7193_CH_AIN6),
-	AD719x_CHANNEL(12, 7, AD7193_CH_AIN7),
-	AD719x_CHANNEL(13, 8, AD7193_CH_AIN8),
+	AD7193_DIFF_CHANNEL(5, 2, 2, AD7193_CH_AIN2P_AIN2M),
+	AD7193_CHANNEL(6, 1, AD7193_CH_AIN1),
+	AD7193_CHANNEL(7, 2, AD7193_CH_AIN2),
+	AD7193_CHANNEL(8, 3, AD7193_CH_AIN3),
+	AD7193_CHANNEL(9, 4, AD7193_CH_AIN4),
+	AD7193_CHANNEL(10, 5, AD7193_CH_AIN5),
+	AD7193_CHANNEL(11, 6, AD7193_CH_AIN6),
+	AD7193_CHANNEL(12, 7, AD7193_CH_AIN7),
+	AD7193_CHANNEL(13, 8, AD7193_CH_AIN8),
 	IIO_CHAN_SOFT_TIMESTAMP(14),
 };
 
@@ -934,39 +1021,33 @@ static const struct ad7192_chip_info ad7192_chip_info_tbl[] = {
 	[ID_AD7190] = {
 		.chip_id = CHIPID_AD7190,
 		.name = "ad7190",
+		.channels = ad7192_channels,
+		.num_channels = ARRAY_SIZE(ad7192_channels),
+		.info = &ad7192_info,
 	},
 	[ID_AD7192] = {
 		.chip_id = CHIPID_AD7192,
 		.name = "ad7192",
+		.channels = ad7192_channels,
+		.num_channels = ARRAY_SIZE(ad7192_channels),
+		.info = &ad7192_info,
 	},
 	[ID_AD7193] = {
 		.chip_id = CHIPID_AD7193,
 		.name = "ad7193",
+		.channels = ad7193_channels,
+		.num_channels = ARRAY_SIZE(ad7193_channels),
+		.info = &ad7192_info,
 	},
 	[ID_AD7195] = {
 		.chip_id = CHIPID_AD7195,
 		.name = "ad7195",
+		.channels = ad7192_channels,
+		.num_channels = ARRAY_SIZE(ad7192_channels),
+		.info = &ad7195_info,
 	},
 };
 
-static int ad7192_channels_config(struct iio_dev *indio_dev)
-{
-	struct ad7192_state *st = iio_priv(indio_dev);
-
-	switch (st->chip_info->chip_id) {
-	case CHIPID_AD7193:
-		indio_dev->channels = ad7193_channels;
-		indio_dev->num_channels = ARRAY_SIZE(ad7193_channels);
-		break;
-	default:
-		indio_dev->channels = ad7192_channels;
-		indio_dev->num_channels = ARRAY_SIZE(ad7192_channels);
-		break;
-	}
-
-	return 0;
-}
-
 static void ad7192_reg_disable(void *reg)
 {
 	regulator_disable(reg);
@@ -1041,15 +1122,9 @@ static int ad7192_probe(struct spi_device *spi)
 		st->chip_info = (void *)spi_get_device_id(spi)->driver_data;
 	indio_dev->name = st->chip_info->name;
 	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	ret = ad7192_channels_config(indio_dev);
-	if (ret < 0)
-		return ret;
-
-	if (st->chip_info->chip_id == CHIPID_AD7195)
-		indio_dev->info = &ad7195_info;
-	else
-		indio_dev->info = &ad7192_info;
+	indio_dev->channels = st->chip_info->channels;
+	indio_dev->num_channels = st->chip_info->num_channels;
+	indio_dev->info = st->chip_info->info;
 
 	ret = ad_sd_init(&st->sd, indio_dev, spi, &ad7192_sigma_delta_info);
 	if (ret)
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index df67b63ccf..d7fd21e7c6 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -2486,7 +2486,7 @@ reg_disable:
 	return ret;
 }
 
-static int at91_adc_remove(struct platform_device *pdev)
+static void at91_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct at91_adc_state *st = iio_priv(indio_dev);
@@ -2501,8 +2501,6 @@ static int at91_adc_remove(struct platform_device *pdev)
 
 	regulator_disable(st->vref);
 	regulator_disable(st->reg);
-
-	return 0;
 }
 
 static int at91_adc_suspend(struct device *dev)
@@ -2627,7 +2625,7 @@ MODULE_DEVICE_TABLE(of, at91_adc_dt_match);
 
 static struct platform_driver at91_adc_driver = {
 	.probe = at91_adc_probe,
-	.remove = at91_adc_remove,
+	.remove_new = at91_adc_remove,
 	.driver = {
 		.name = "at91-sama5d2_adc",
 		.of_match_table = at91_adc_dt_match,
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index de6650f9c4..eb501e3c86 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -1013,28 +1013,25 @@ static int at91_adc_probe(struct platform_device *pdev)
 
 	st->use_external = of_property_read_bool(node, "atmel,adc-use-external-triggers");
 
-	if (of_property_read_u32(node, "atmel,adc-channels-used", &prop)) {
-		dev_err(&idev->dev, "Missing adc-channels-used property in the DT.\n");
-		return -EINVAL;
-	}
+	if (of_property_read_u32(node, "atmel,adc-channels-used", &prop))
+		return dev_err_probe(&idev->dev, -EINVAL,
+				     "Missing adc-channels-used property in the DT.\n");
 	st->channels_mask = prop;
 
 	st->sleep_mode = of_property_read_bool(node, "atmel,adc-sleep-mode");
 
-	if (of_property_read_u32(node, "atmel,adc-startup-time", &prop)) {
-		dev_err(&idev->dev, "Missing adc-startup-time property in the DT.\n");
-		return -EINVAL;
-	}
+	if (of_property_read_u32(node, "atmel,adc-startup-time", &prop))
+		return dev_err_probe(&idev->dev, -EINVAL,
+				     "Missing adc-startup-time property in the DT.\n");
 	st->startup_time = prop;
 
 	prop = 0;
 	of_property_read_u32(node, "atmel,adc-sample-hold-time", &prop);
 	st->sample_hold_time = prop;
 
-	if (of_property_read_u32(node, "atmel,adc-vref", &prop)) {
-		dev_err(&idev->dev, "Missing adc-vref property in the DT.\n");
-		return -EINVAL;
-	}
+	if (of_property_read_u32(node, "atmel,adc-vref", &prop))
+		return dev_err_probe(&idev->dev, -EINVAL,
+				     "Missing adc-vref property in the DT.\n");
 	st->vref_mv = prop;
 
 	st->res = st->caps->high_res_bits;
@@ -1069,7 +1066,6 @@ static int at91_adc_probe(struct platform_device *pdev)
 	if (IS_ERR(st->reg_base))
 		return PTR_ERR(st->reg_base);
 
-
 	/*
 	 * Disable all IRQs before setting up the handler
 	 */
@@ -1077,43 +1073,26 @@ static int at91_adc_probe(struct platform_device *pdev)
 	at91_adc_writel(st, AT91_ADC_IDR, 0xFFFFFFFF);
 
 	if (st->caps->has_tsmr)
-		ret = request_irq(st->irq, at91_adc_9x5_interrupt, 0,
-				  pdev->dev.driver->name, idev);
+		ret = devm_request_irq(&pdev->dev, st->irq,
+				       at91_adc_9x5_interrupt, 0,
+				       pdev->dev.driver->name, idev);
 	else
-		ret = request_irq(st->irq, at91_adc_rl_interrupt, 0,
-				  pdev->dev.driver->name, idev);
-	if (ret) {
-		dev_err(&pdev->dev, "Failed to allocate IRQ.\n");
-		return ret;
-	}
-
-	st->clk = devm_clk_get(&pdev->dev, "adc_clk");
-	if (IS_ERR(st->clk)) {
-		dev_err(&pdev->dev, "Failed to get the clock.\n");
-		ret = PTR_ERR(st->clk);
-		goto error_free_irq;
-	}
-
-	ret = clk_prepare_enable(st->clk);
-	if (ret) {
-		dev_err(&pdev->dev,
-			"Could not prepare or enable the clock.\n");
-		goto error_free_irq;
-	}
+		ret = devm_request_irq(&pdev->dev, st->irq,
+				       at91_adc_rl_interrupt, 0,
+				       pdev->dev.driver->name, idev);
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret,
+				     "Failed to allocate IRQ.\n");
 
-	st->adc_clk = devm_clk_get(&pdev->dev, "adc_op_clk");
-	if (IS_ERR(st->adc_clk)) {
-		dev_err(&pdev->dev, "Failed to get the ADC clock.\n");
-		ret = PTR_ERR(st->adc_clk);
-		goto error_disable_clk;
-	}
+	st->clk = devm_clk_get_enabled(&pdev->dev, "adc_clk");
+	if (IS_ERR(st->clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(st->clk),
+				     "Could not prepare or enable the clock.\n");
 
-	ret = clk_prepare_enable(st->adc_clk);
-	if (ret) {
-		dev_err(&pdev->dev,
-			"Could not prepare or enable the ADC clock.\n");
-		goto error_disable_clk;
-	}
+	st->adc_clk = devm_clk_get_enabled(&pdev->dev, "adc_op_clk");
+	if (IS_ERR(st->adc_clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(st->adc_clk),
+				     "Could not prepare or enable the ADC clock.\n");
 
 	/*
 	 * Prescaler rate computation using the formula from the Atmel's
@@ -1129,11 +1108,9 @@ static int at91_adc_probe(struct platform_device *pdev)
 
 	prsc = (mstrclk / (2 * adc_clk)) - 1;
 
-	if (!st->startup_time) {
-		dev_err(&pdev->dev, "No startup time available.\n");
-		ret = -EINVAL;
-		goto error_disable_adc_clk;
-	}
+	if (!st->startup_time)
+		return dev_err_probe(&pdev->dev, -EINVAL,
+				     "No startup time available.\n");
 	ticks = (*st->caps->calc_startup_ticks)(st->startup_time, adc_clk_khz);
 
 	/*
@@ -1158,10 +1135,9 @@ static int at91_adc_probe(struct platform_device *pdev)
 
 	/* Setup the ADC channels available on the board */
 	ret = at91_adc_channel_init(idev);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "Couldn't initialize the channels.\n");
-		goto error_disable_adc_clk;
-	}
+	if (ret < 0)
+		return dev_err_probe(&pdev->dev, ret,
+				     "Couldn't initialize the channels.\n");
 
 	init_waitqueue_head(&st->wq_data_avail);
 	mutex_init(&st->lock);
@@ -1173,21 +1149,20 @@ static int at91_adc_probe(struct platform_device *pdev)
 	 */
 	if (!st->touchscreen_type) {
 		ret = at91_adc_buffer_init(idev);
-		if (ret < 0) {
-			dev_err(&pdev->dev, "Couldn't initialize the buffer.\n");
-			goto error_disable_adc_clk;
-		}
+		if (ret < 0)
+			return dev_err_probe(&pdev->dev, ret,
+					     "Couldn't initialize the buffer.\n");
 
 		ret = at91_adc_trigger_init(idev);
 		if (ret < 0) {
 			dev_err(&pdev->dev, "Couldn't setup the triggers.\n");
 			at91_adc_buffer_remove(idev);
-			goto error_disable_adc_clk;
+			return ret;
 		}
 	} else {
 		ret = at91_ts_register(idev, pdev);
 		if (ret)
-			goto error_disable_adc_clk;
+			return ret;
 
 		at91_ts_hw_init(idev, adc_clk_khz);
 	}
@@ -1207,16 +1182,10 @@ error_iio_device_register:
 	} else {
 		at91_ts_unregister(st);
 	}
-error_disable_adc_clk:
-	clk_disable_unprepare(st->adc_clk);
-error_disable_clk:
-	clk_disable_unprepare(st->clk);
-error_free_irq:
-	free_irq(st->irq, idev);
 	return ret;
 }
 
-static int at91_adc_remove(struct platform_device *pdev)
+static void at91_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *idev = platform_get_drvdata(pdev);
 	struct at91_adc_state *st = iio_priv(idev);
@@ -1228,11 +1197,6 @@ static int at91_adc_remove(struct platform_device *pdev)
 	} else {
 		at91_ts_unregister(st);
 	}
-	clk_disable_unprepare(st->adc_clk);
-	clk_disable_unprepare(st->clk);
-	free_irq(st->irq, idev);
-
-	return 0;
 }
 
 static int at91_adc_suspend(struct device *dev)
@@ -1382,7 +1346,7 @@ MODULE_DEVICE_TABLE(of, at91_adc_dt_ids);
 
 static struct platform_driver at91_adc_driver = {
 	.probe = at91_adc_probe,
-	.remove = at91_adc_remove,
+	.remove_new = at91_adc_remove,
 	.driver = {
 		   .name = DRIVER_NAME,
 		   .of_match_table = at91_adc_dt_ids,
diff --git a/drivers/iio/adc/axp20x_adc.c b/drivers/iio/adc/axp20x_adc.c
index 75bda94dbc..d6c51b0f48 100644
--- a/drivers/iio/adc/axp20x_adc.c
+++ b/drivers/iio/adc/axp20x_adc.c
@@ -745,7 +745,7 @@ fail_map:
 	return ret;
 }
 
-static int axp20x_remove(struct platform_device *pdev)
+static void axp20x_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct axp20x_adc_iio *info = iio_priv(indio_dev);
@@ -757,8 +757,6 @@ static int axp20x_remove(struct platform_device *pdev)
 
 	if (info->data->adc_en2_mask)
 		regmap_write(info->regmap, AXP20X_ADC_EN2, 0);
-
-	return 0;
 }
 
 static struct platform_driver axp20x_adc_driver = {
@@ -768,7 +766,7 @@ static struct platform_driver axp20x_adc_driver = {
 	},
 	.id_table = axp20x_adc_id_match,
 	.probe = axp20x_probe,
-	.remove = axp20x_remove,
+	.remove_new = axp20x_remove,
 };
 
 module_platform_driver(axp20x_adc_driver);
diff --git a/drivers/iio/adc/bcm_iproc_adc.c b/drivers/iio/adc/bcm_iproc_adc.c
index 0d6885413a..5bc514bd5e 100644
--- a/drivers/iio/adc/bcm_iproc_adc.c
+++ b/drivers/iio/adc/bcm_iproc_adc.c
@@ -594,7 +594,7 @@ err_adc_enable:
 	return ret;
 }
 
-static int iproc_adc_remove(struct platform_device *pdev)
+static void iproc_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct iproc_adc_priv *adc_priv = iio_priv(indio_dev);
@@ -602,8 +602,6 @@ static int iproc_adc_remove(struct platform_device *pdev)
 	iio_device_unregister(indio_dev);
 	iproc_adc_disable(indio_dev);
 	clk_disable_unprepare(adc_priv->adc_clk);
-
-	return 0;
 }
 
 static const struct of_device_id iproc_adc_of_match[] = {
@@ -614,7 +612,7 @@ MODULE_DEVICE_TABLE(of, iproc_adc_of_match);
 
 static struct platform_driver iproc_adc_driver = {
 	.probe  = iproc_adc_probe,
-	.remove	= iproc_adc_remove,
+	.remove_new = iproc_adc_remove,
 	.driver	= {
 		.name	= "iproc-static-adc",
 		.of_match_table = iproc_adc_of_match,
diff --git a/drivers/iio/adc/dln2-adc.c b/drivers/iio/adc/dln2-adc.c
index 97d162a3cb..06cfbbabaf 100644
--- a/drivers/iio/adc/dln2-adc.c
+++ b/drivers/iio/adc/dln2-adc.c
@@ -691,19 +691,18 @@ unregister_event:
 	return ret;
 }
 
-static int dln2_adc_remove(struct platform_device *pdev)
+static void dln2_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 
 	iio_device_unregister(indio_dev);
 	dln2_unregister_event_cb(pdev, DLN2_ADC_CONDITION_MET_EV);
-	return 0;
 }
 
 static struct platform_driver dln2_adc_driver = {
 	.driver.name	= DLN2_ADC_MOD_NAME,
 	.probe		= dln2_adc_probe,
-	.remove		= dln2_adc_remove,
+	.remove_new	= dln2_adc_remove,
 };
 
 module_platform_driver(dln2_adc_driver);
diff --git a/drivers/iio/adc/ep93xx_adc.c b/drivers/iio/adc/ep93xx_adc.c
index a35e6cead6..971942ce4c 100644
--- a/drivers/iio/adc/ep93xx_adc.c
+++ b/drivers/iio/adc/ep93xx_adc.c
@@ -217,15 +217,13 @@ static int ep93xx_adc_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int ep93xx_adc_remove(struct platform_device *pdev)
+static void ep93xx_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *iiodev = platform_get_drvdata(pdev);
 	struct ep93xx_adc_priv *priv = iio_priv(iiodev);
 
 	iio_device_unregister(iiodev);
 	clk_disable_unprepare(priv->clk);
-
-	return 0;
 }
 
 static const struct of_device_id ep93xx_adc_of_ids[] = {
@@ -240,7 +238,7 @@ static struct platform_driver ep93xx_adc_driver = {
 		.of_match_table = ep93xx_adc_of_ids,
 	},
 	.probe = ep93xx_adc_probe,
-	.remove = ep93xx_adc_remove,
+	.remove_new = ep93xx_adc_remove,
 };
 module_platform_driver(ep93xx_adc_driver);
 
diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c
index 43c8af41b4..614de96448 100644
--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -950,7 +950,7 @@ err_disable_reg:
 	return ret;
 }
 
-static int exynos_adc_remove(struct platform_device *pdev)
+static void exynos_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct exynos_adc *info = iio_priv(indio_dev);
@@ -968,8 +968,6 @@ static int exynos_adc_remove(struct platform_device *pdev)
 	exynos_adc_disable_clk(info);
 	exynos_adc_unprepare_clk(info);
 	regulator_disable(info->vdd);
-
-	return 0;
 }
 
 static int exynos_adc_suspend(struct device *dev)
@@ -1010,7 +1008,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(exynos_adc_pm_ops, exynos_adc_suspend,
 
 static struct platform_driver exynos_adc_driver = {
 	.probe		= exynos_adc_probe,
-	.remove		= exynos_adc_remove,
+	.remove_new	= exynos_adc_remove,
 	.driver		= {
 		.name	= "exynos-adc",
 		.of_match_table = exynos_adc_match,
diff --git a/drivers/iio/adc/fsl-imx25-gcq.c b/drivers/iio/adc/fsl-imx25-gcq.c
index 551e83ae57..68c813de06 100644
--- a/drivers/iio/adc/fsl-imx25-gcq.c
+++ b/drivers/iio/adc/fsl-imx25-gcq.c
@@ -384,7 +384,7 @@ err_regulator_disable:
 	return ret;
 }
 
-static int mx25_gcq_remove(struct platform_device *pdev)
+static void mx25_gcq_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct mx25_gcq_priv *priv = iio_priv(indio_dev);
@@ -397,8 +397,6 @@ static int mx25_gcq_remove(struct platform_device *pdev)
 		if (priv->vref[i])
 			regulator_disable(priv->vref[i]);
 	}
-
-	return 0;
 }
 
 static const struct of_device_id mx25_gcq_ids[] = {
@@ -413,7 +411,7 @@ static struct platform_driver mx25_gcq_driver = {
 		.of_match_table = mx25_gcq_ids,
 	},
 	.probe		= mx25_gcq_probe,
-	.remove		= mx25_gcq_remove,
+	.remove_new	= mx25_gcq_remove,
 };
 module_platform_driver(mx25_gcq_driver);
 
diff --git a/drivers/iio/adc/hx711.c b/drivers/iio/adc/hx711.c
index f7ee856a6b..c80c55fb8c 100644
--- a/drivers/iio/adc/hx711.c
+++ b/drivers/iio/adc/hx711.c
@@ -580,7 +580,7 @@ error_regulator:
 	return ret;
 }
 
-static int hx711_remove(struct platform_device *pdev)
+static void hx711_remove(struct platform_device *pdev)
 {
 	struct hx711_data *hx711_data;
 	struct iio_dev *indio_dev;
@@ -593,8 +593,6 @@ static int hx711_remove(struct platform_device *pdev)
 	iio_triggered_buffer_cleanup(indio_dev);
 
 	regulator_disable(hx711_data->reg_avdd);
-
-	return 0;
 }
 
 static const struct of_device_id of_hx711_match[] = {
@@ -606,7 +604,7 @@ MODULE_DEVICE_TABLE(of, of_hx711_match);
 
 static struct platform_driver hx711_driver = {
 	.probe		= hx711_probe,
-	.remove		= hx711_remove,
+	.remove_new	= hx711_remove,
 	.driver		= {
 		.name		= "hx711-gpio",
 		.of_match_table	= of_hx711_match,
diff --git a/drivers/iio/adc/imx8qxp-adc.c b/drivers/iio/adc/imx8qxp-adc.c
index fff6e5a2d9..fe82198170 100644
--- a/drivers/iio/adc/imx8qxp-adc.c
+++ b/drivers/iio/adc/imx8qxp-adc.c
@@ -404,7 +404,7 @@ error_regulator_disable:
 	return ret;
 }
 
-static int imx8qxp_adc_remove(struct platform_device *pdev)
+static void imx8qxp_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct imx8qxp_adc *adc = iio_priv(indio_dev);
@@ -422,8 +422,6 @@ static int imx8qxp_adc_remove(struct platform_device *pdev)
 
 	pm_runtime_disable(dev);
 	pm_runtime_put_noidle(dev);
-
-	return 0;
 }
 
 static int imx8qxp_adc_runtime_suspend(struct device *dev)
@@ -489,7 +487,7 @@ MODULE_DEVICE_TABLE(of, imx8qxp_adc_match);
 
 static struct platform_driver imx8qxp_adc_driver = {
 	.probe		= imx8qxp_adc_probe,
-	.remove		= imx8qxp_adc_remove,
+	.remove_new	= imx8qxp_adc_remove,
 	.driver		= {
 		.name	= ADC_DRIVER_NAME,
 		.of_match_table = imx8qxp_adc_match,
diff --git a/drivers/iio/adc/imx93_adc.c b/drivers/iio/adc/imx93_adc.c
index 512d7b95b0..4ccf4819f1 100644
--- a/drivers/iio/adc/imx93_adc.c
+++ b/drivers/iio/adc/imx93_adc.c
@@ -396,7 +396,7 @@ error_regulator_disable:
 	return ret;
 }
 
-static int imx93_adc_remove(struct platform_device *pdev)
+static void imx93_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct imx93_adc *adc = iio_priv(indio_dev);
@@ -414,8 +414,6 @@ static int imx93_adc_remove(struct platform_device *pdev)
 	free_irq(adc->irq, adc);
 	clk_disable_unprepare(adc->ipg_clk);
 	regulator_disable(adc->vref);
-
-	return 0;
 }
 
 static int imx93_adc_runtime_suspend(struct device *dev)
@@ -472,7 +470,7 @@ MODULE_DEVICE_TABLE(of, imx93_adc_match);
 
 static struct platform_driver imx93_adc_driver = {
 	.probe		= imx93_adc_probe,
-	.remove		= imx93_adc_remove,
+	.remove_new	= imx93_adc_remove,
 	.driver		= {
 		.name	= IMX93_ADC_DRIVER_NAME,
 		.of_match_table = imx93_adc_match,
diff --git a/drivers/iio/adc/ltc2309.c b/drivers/iio/adc/ltc2309.c
new file mode 100644
index 0000000000..8b3a89c1b8
--- /dev/null
+++ b/drivers/iio/adc/ltc2309.c
@@ -0,0 +1,246 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * The LTC2309 is an 8-Channel, 12-Bit SAR ADC with an I2C Interface.
+ *
+ * Datasheet:
+ * https://www.analog.com/media/en/technical-documentation/data-sheets/2309fd.pdf
+ *
+ * Copyright (c) 2023, Liam Beguin <liambeguin@gmail.com>
+ */
+#include <linux/bitfield.h>
+#include <linux/i2c.h>
+#include <linux/iio/iio.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/regulator/consumer.h>
+
+#define LTC2309_ADC_RESOLUTION	12
+
+#define LTC2309_DIN_CH_MASK	GENMASK(7, 4)
+#define LTC2309_DIN_SDN		BIT(7)
+#define LTC2309_DIN_OSN		BIT(6)
+#define LTC2309_DIN_S1		BIT(5)
+#define LTC2309_DIN_S0		BIT(4)
+#define LTC2309_DIN_UNI		BIT(3)
+#define LTC2309_DIN_SLEEP	BIT(2)
+
+/**
+ * struct ltc2309 - internal device data structure
+ * @dev:	Device reference
+ * @client:	I2C reference
+ * @vref:	External reference source
+ * @lock:	Lock to serialize data access
+ * @vref_mv:	Internal voltage reference
+ */
+struct ltc2309 {
+	struct device		*dev;
+	struct i2c_client	*client;
+	struct regulator	*vref;
+	struct mutex		lock; /* serialize data access */
+	int			vref_mv;
+};
+
+/* Order matches expected channel address, See datasheet Table 1. */
+enum ltc2309_channels {
+	LTC2309_CH0_CH1 = 0,
+	LTC2309_CH2_CH3,
+	LTC2309_CH4_CH5,
+	LTC2309_CH6_CH7,
+	LTC2309_CH1_CH0,
+	LTC2309_CH3_CH2,
+	LTC2309_CH5_CH4,
+	LTC2309_CH7_CH6,
+	LTC2309_CH0,
+	LTC2309_CH2,
+	LTC2309_CH4,
+	LTC2309_CH6,
+	LTC2309_CH1,
+	LTC2309_CH3,
+	LTC2309_CH5,
+	LTC2309_CH7,
+};
+
+#define LTC2309_CHAN(_chan, _addr) {				\
+	.type = IIO_VOLTAGE,					\
+	.indexed = 1,						\
+	.address = _addr,					\
+	.channel = _chan,					\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
+	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),	\
+}
+
+#define LTC2309_DIFF_CHAN(_chan, _chan2, _addr) {		\
+	.type = IIO_VOLTAGE,					\
+	.differential = 1,					\
+	.indexed = 1,						\
+	.address = _addr,					\
+	.channel = _chan,					\
+	.channel2 = _chan2,					\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
+	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),	\
+}
+
+static const struct iio_chan_spec ltc2309_channels[] = {
+	LTC2309_CHAN(0, LTC2309_CH0),
+	LTC2309_CHAN(1, LTC2309_CH1),
+	LTC2309_CHAN(2, LTC2309_CH2),
+	LTC2309_CHAN(3, LTC2309_CH3),
+	LTC2309_CHAN(4, LTC2309_CH4),
+	LTC2309_CHAN(5, LTC2309_CH5),
+	LTC2309_CHAN(6, LTC2309_CH6),
+	LTC2309_CHAN(7, LTC2309_CH7),
+	LTC2309_DIFF_CHAN(0, 1, LTC2309_CH0_CH1),
+	LTC2309_DIFF_CHAN(2, 3, LTC2309_CH2_CH3),
+	LTC2309_DIFF_CHAN(4, 5, LTC2309_CH4_CH5),
+	LTC2309_DIFF_CHAN(6, 7, LTC2309_CH6_CH7),
+	LTC2309_DIFF_CHAN(1, 0, LTC2309_CH1_CH0),
+	LTC2309_DIFF_CHAN(3, 2, LTC2309_CH3_CH2),
+	LTC2309_DIFF_CHAN(5, 4, LTC2309_CH5_CH4),
+	LTC2309_DIFF_CHAN(7, 6, LTC2309_CH7_CH6),
+};
+
+static int ltc2309_read_raw_channel(struct ltc2309 *ltc2309,
+				    unsigned long address, int *val)
+{
+	int ret;
+	u16 buf;
+	u8 din;
+
+	din = FIELD_PREP(LTC2309_DIN_CH_MASK, address & 0x0f) |
+		FIELD_PREP(LTC2309_DIN_UNI, 1) |
+		FIELD_PREP(LTC2309_DIN_SLEEP, 0);
+
+	ret = i2c_smbus_write_byte(ltc2309->client, din);
+	if (ret < 0) {
+		dev_err(ltc2309->dev, "i2c command failed: %pe\n",
+			ERR_PTR(ret));
+		return ret;
+	}
+
+	ret = i2c_master_recv(ltc2309->client, (char *)&buf, 2);
+	if (ret < 0) {
+		dev_err(ltc2309->dev, "i2c read failed: %pe\n", ERR_PTR(ret));
+		return ret;
+	}
+
+	*val = be16_to_cpu(buf) >> 4;
+
+	return ret;
+}
+
+static int ltc2309_read_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan, int *val,
+			    int *val2, long mask)
+{
+	struct ltc2309 *ltc2309 = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		mutex_lock(&ltc2309->lock);
+		ret = ltc2309_read_raw_channel(ltc2309, chan->address, val);
+		mutex_unlock(&ltc2309->lock);
+		if (ret < 0)
+			return -EINVAL;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		*val = ltc2309->vref_mv;
+		*val2 = LTC2309_ADC_RESOLUTION;
+		return IIO_VAL_FRACTIONAL_LOG2;
+	default:
+		return -EINVAL;
+	}
+}
+
+static const struct iio_info ltc2309_info = {
+	.read_raw = ltc2309_read_raw,
+};
+
+static void ltc2309_regulator_disable(void *regulator)
+{
+	regulator_disable(regulator);
+}
+
+static int ltc2309_probe(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev;
+	struct ltc2309 *ltc2309;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*ltc2309));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	ltc2309 = iio_priv(indio_dev);
+	ltc2309->dev = &indio_dev->dev;
+	ltc2309->client = client;
+	ltc2309->vref_mv = 4096; /* Default to the internal ref */
+
+	indio_dev->name = "ltc2309";
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = ltc2309_channels;
+	indio_dev->num_channels = ARRAY_SIZE(ltc2309_channels);
+	indio_dev->info = &ltc2309_info;
+
+	ltc2309->vref = devm_regulator_get_optional(&client->dev, "vref");
+	if (IS_ERR(ltc2309->vref)) {
+		ret = PTR_ERR(ltc2309->vref);
+		if (ret == -ENODEV)
+			ltc2309->vref = NULL;
+		else
+			return ret;
+	}
+
+	if (ltc2309->vref) {
+		ret = regulator_enable(ltc2309->vref);
+		if (ret)
+			return dev_err_probe(ltc2309->dev, ret,
+					     "failed to enable vref\n");
+
+		ret = devm_add_action_or_reset(ltc2309->dev,
+					       ltc2309_regulator_disable,
+					       ltc2309->vref);
+		if (ret) {
+			return dev_err_probe(ltc2309->dev, ret,
+					     "failed to add regulator_disable action: %d\n",
+					     ret);
+		}
+
+		ret = regulator_get_voltage(ltc2309->vref);
+		if (ret < 0)
+			return ret;
+
+		ltc2309->vref_mv = ret / 1000;
+	}
+
+	mutex_init(&ltc2309->lock);
+
+	return devm_iio_device_register(&client->dev, indio_dev);
+}
+
+static const struct of_device_id ltc2309_of_match[] = {
+	{ .compatible = "lltc,ltc2309" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, ltc2309_of_match);
+
+static const struct i2c_device_id ltc2309_id[] = {
+	{ "ltc2309" },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, ltc2309_id);
+
+static struct i2c_driver ltc2309_driver = {
+	.driver = {
+		.name = "ltc2309",
+		.of_match_table = ltc2309_of_match,
+	},
+	.probe		= ltc2309_probe,
+	.id_table	= ltc2309_id,
+};
+module_i2c_driver(ltc2309_driver);
+
+MODULE_AUTHOR("Liam Beguin <liambeguin@gmail.com>");
+MODULE_DESCRIPTION("Linear Technology LTC2309 ADC");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/adc/ltc2497.c b/drivers/iio/adc/ltc2497.c
index 5bdd407296..6401a7727c 100644
--- a/drivers/iio/adc/ltc2497.c
+++ b/drivers/iio/adc/ltc2497.c
@@ -95,7 +95,6 @@ static int ltc2497_result_and_measure(struct ltc2497core_driverdata *ddata,
 
 static int ltc2497_probe(struct i2c_client *client)
 {
-	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	const struct ltc2497_chip_info *chip_info;
 	struct iio_dev *indio_dev;
 	struct ltc2497_driverdata *st;
@@ -115,9 +114,7 @@ static int ltc2497_probe(struct i2c_client *client)
 	st->client = client;
 	st->common_ddata.result_and_measure = ltc2497_result_and_measure;
 
-	chip_info = device_get_match_data(dev);
-	if (!chip_info)
-		chip_info = (const struct ltc2497_chip_info *)id->driver_data;
+	chip_info = i2c_get_match_data(client);
 	st->common_ddata.chip_info = chip_info;
 
 	resolution = chip_info->resolution;
diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c
index b31581616c..7c2a98b8c3 100644
--- a/drivers/iio/adc/max1363.c
+++ b/drivers/iio/adc/max1363.c
@@ -1599,9 +1599,7 @@ static int max1363_probe(struct i2c_client *client)
 	if (ret)
 		return ret;
 
-	st->chip_info = device_get_match_data(&client->dev);
-	if (!st->chip_info)
-		st->chip_info = &max1363_chip_info_tbl[id->driver_data];
+	st->chip_info = i2c_get_match_data(client);
 	st->client = client;
 
 	st->vref_uv = st->chip_info->int_vref_mv * 1000;
@@ -1669,46 +1667,51 @@ static int max1363_probe(struct i2c_client *client)
 	return devm_iio_device_register(&client->dev, indio_dev);
 }
 
+#define MAX1363_ID_TABLE(_name, cfg) {				\
+	.name = _name,						\
+	.driver_data = (kernel_ulong_t)&max1363_chip_info_tbl[cfg],	\
+}
+
 static const struct i2c_device_id max1363_id[] = {
-	{ "max1361", max1361 },
-	{ "max1362", max1362 },
-	{ "max1363", max1363 },
-	{ "max1364", max1364 },
-	{ "max1036", max1036 },
-	{ "max1037", max1037 },
-	{ "max1038", max1038 },
-	{ "max1039", max1039 },
-	{ "max1136", max1136 },
-	{ "max1137", max1137 },
-	{ "max1138", max1138 },
-	{ "max1139", max1139 },
-	{ "max1236", max1236 },
-	{ "max1237", max1237 },
-	{ "max1238", max1238 },
-	{ "max1239", max1239 },
-	{ "max11600", max11600 },
-	{ "max11601", max11601 },
-	{ "max11602", max11602 },
-	{ "max11603", max11603 },
-	{ "max11604", max11604 },
-	{ "max11605", max11605 },
-	{ "max11606", max11606 },
-	{ "max11607", max11607 },
-	{ "max11608", max11608 },
-	{ "max11609", max11609 },
-	{ "max11610", max11610 },
-	{ "max11611", max11611 },
-	{ "max11612", max11612 },
-	{ "max11613", max11613 },
-	{ "max11614", max11614 },
-	{ "max11615", max11615 },
-	{ "max11616", max11616 },
-	{ "max11617", max11617 },
-	{ "max11644", max11644 },
-	{ "max11645", max11645 },
-	{ "max11646", max11646 },
-	{ "max11647", max11647 },
-	{}
+	MAX1363_ID_TABLE("max1361", max1361),
+	MAX1363_ID_TABLE("max1362", max1362),
+	MAX1363_ID_TABLE("max1363", max1363),
+	MAX1363_ID_TABLE("max1364", max1364),
+	MAX1363_ID_TABLE("max1036", max1036),
+	MAX1363_ID_TABLE("max1037", max1037),
+	MAX1363_ID_TABLE("max1038", max1038),
+	MAX1363_ID_TABLE("max1039", max1039),
+	MAX1363_ID_TABLE("max1136", max1136),
+	MAX1363_ID_TABLE("max1137", max1137),
+	MAX1363_ID_TABLE("max1138", max1138),
+	MAX1363_ID_TABLE("max1139", max1139),
+	MAX1363_ID_TABLE("max1236", max1236),
+	MAX1363_ID_TABLE("max1237", max1237),
+	MAX1363_ID_TABLE("max1238", max1238),
+	MAX1363_ID_TABLE("max1239", max1239),
+	MAX1363_ID_TABLE("max11600", max11600),
+	MAX1363_ID_TABLE("max11601", max11601),
+	MAX1363_ID_TABLE("max11602", max11602),
+	MAX1363_ID_TABLE("max11603", max11603),
+	MAX1363_ID_TABLE("max11604", max11604),
+	MAX1363_ID_TABLE("max11605", max11605),
+	MAX1363_ID_TABLE("max11606", max11606),
+	MAX1363_ID_TABLE("max11607", max11607),
+	MAX1363_ID_TABLE("max11608", max11608),
+	MAX1363_ID_TABLE("max11609", max11609),
+	MAX1363_ID_TABLE("max11610", max11610),
+	MAX1363_ID_TABLE("max11611", max11611),
+	MAX1363_ID_TABLE("max11612", max11612),
+	MAX1363_ID_TABLE("max11613", max11613),
+	MAX1363_ID_TABLE("max11614", max11614),
+	MAX1363_ID_TABLE("max11615", max11615),
+	MAX1363_ID_TABLE("max11616", max11616),
+	MAX1363_ID_TABLE("max11617", max11617),
+	MAX1363_ID_TABLE("max11644", max11644),
+	MAX1363_ID_TABLE("max11645", max11645),
+	MAX1363_ID_TABLE("max11646", max11646),
+	MAX1363_ID_TABLE("max11647", max11647),
+	{ /* sentinel */ }
 };
 
 MODULE_DEVICE_TABLE(i2c, max1363_id);
diff --git a/drivers/iio/adc/mcp3564.c b/drivers/iio/adc/mcp3564.c
new file mode 100644
index 0000000000..311b613b60
--- /dev/null
+++ b/drivers/iio/adc/mcp3564.c
@@ -0,0 +1,1513 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * IIO driver for MCP356X/MCP356XR and MCP346X/MCP346XR series ADC chip family
+ *
+ * Copyright (C) 2022-2023 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Marius Cristea <marius.cristea@microchip.com>
+ *
+ * Datasheet for MCP3561, MCP3562, MCP3564 can be found here:
+ * https://ww1.microchip.com/downloads/aemDocuments/documents/MSLD/ProductDocuments/DataSheets/MCP3561-2-4-Family-Data-Sheet-DS20006181C.pdf
+ * Datasheet for MCP3561R, MCP3562R, MCP3564R can be found here:
+ * https://ww1.microchip.com/downloads/aemDocuments/documents/APID/ProductDocuments/DataSheets/MCP3561_2_4R-Data-Sheet-DS200006391C.pdf
+ * Datasheet for MCP3461, MCP3462, MCP3464 can be found here:
+ * https://ww1.microchip.com/downloads/aemDocuments/documents/APID/ProductDocuments/DataSheets/MCP3461-2-4-Two-Four-Eight-Channel-153.6-ksps-Low-Noise-16-Bit-Delta-Sigma-ADC-Data-Sheet-20006180D.pdf
+ * Datasheet for MCP3461R, MCP3462R, MCP3464R can be found here:
+ * https://ww1.microchip.com/downloads/aemDocuments/documents/APID/ProductDocuments/DataSheets/MCP3461-2-4R-Family-Data-Sheet-DS20006404C.pdf
+ */
+
+#include <linux/bitfield.h>
+#include <linux/iopoll.h>
+#include <linux/regulator/consumer.h>
+#include <linux/spi/spi.h>
+#include <linux/units.h>
+#include <linux/util_macros.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+
+#define MCP3564_ADCDATA_REG		0x00
+
+#define MCP3564_CONFIG0_REG		0x01
+#define MCP3564_CONFIG0_ADC_MODE_MASK		GENMASK(1, 0)
+/* Current Source/Sink Selection Bits for Sensor Bias */
+#define MCP3564_CONFIG0_CS_SEL_MASK		GENMASK(3, 2)
+/* Internal clock is selected and AMCLK is present on the analog master clock output pin */
+#define MCP3564_CONFIG0_USE_INT_CLK_OUTPUT_EN	0x03
+/* Internal clock is selected and no clock output is present on the CLK pin */
+#define MCP3564_CONFIG0_USE_INT_CLK		0x02
+/* External digital clock */
+#define MCP3564_CONFIG0_USE_EXT_CLK		0x01
+/* External digital clock (default) */
+#define MCP3564_CONFIG0_USE_EXT_CLK_DEFAULT	0x00
+#define MCP3564_CONFIG0_CLK_SEL_MASK		GENMASK(5, 4)
+#define MCP3456_CONFIG0_BIT6_DEFAULT		BIT(6)
+#define MCP3456_CONFIG0_VREF_MASK		BIT(7)
+
+#define MCP3564_CONFIG1_REG		0x02
+#define MCP3564_CONFIG1_OVERSPL_RATIO_MASK	GENMASK(5, 2)
+
+#define MCP3564_CONFIG2_REG		0x03
+#define MCP3564_CONFIG2_AZ_REF_MASK		BIT(1)
+#define MCP3564_CONFIG2_AZ_MUX_MASK		BIT(2)
+
+#define MCP3564_CONFIG2_HARDWARE_GAIN_MASK	GENMASK(5, 3)
+#define MCP3564_DEFAULT_HARDWARE_GAIN		0x01
+#define MCP3564_CONFIG2_BOOST_CURRENT_MASK	GENMASK(7, 6)
+
+#define MCP3564_CONFIG3_REG		0x04
+#define MCP3464_CONFIG3_EN_GAINCAL_MASK		BIT(0)
+#define MCP3464_CONFIG3_EN_OFFCAL_MASK		BIT(1)
+#define MCP3464_CONFIG3_EN_CRCCOM_MASK		BIT(2)
+#define MCP3464_CONFIG3_CRC_FORMAT_MASK		BIT(3)
+/*
+ * ADC Output Data Format 32-bit (25-bit right justified data + Channel ID):
+ *                CHID[3:0] + SGN extension (4 bits) + 24-bit ADC data.
+ *        It allows overrange with the SGN extension.
+ */
+#define MCP3464_CONFIG3_DATA_FMT_32B_WITH_CH_ID		3
+/*
+ * ADC Output Data Format 32-bit (25-bit right justified data):
+ *                SGN extension (8-bit) + 24-bit ADC data.
+ *        It allows overrange with the SGN extension.
+ */
+#define MCP3464_CONFIG3_DATA_FMT_32B_SGN_EXT		2
+/*
+ * ADC Output Data Format 32-bit (24-bit left justified data):
+ *                24-bit ADC data + 0x00 (8-bit).
+ *        It does not allow overrange (ADC code locked to 0xFFFFFF or 0x800000).
+ */
+#define MCP3464_CONFIG3_DATA_FMT_32B_LEFT_JUSTIFIED	1
+/*
+ * ADC Output Data Format 24-bit (default ADC coding):
+ *                24-bit ADC data.
+ *        It does not allow overrange (ADC code locked to 0xFFFFFF or 0x800000).
+ */
+#define MCP3464_CONFIG3_DATA_FMT_24B			0
+#define MCP3464_CONFIG3_DATA_FORMAT_MASK	GENMASK(5, 4)
+
+/* Continuous Conversion mode or continuous conversion cycle in SCAN mode. */
+#define MCP3464_CONFIG3_CONV_MODE_CONTINUOUS		3
+/*
+ * One-shot conversion or one-shot cycle in SCAN mode. It sets ADC_MODE[1:0] to ‘10’
+ * (standby) at the end of the conversion or at the end of the conversion cycle in SCAN mode.
+ */
+#define MCP3464_CONFIG3_CONV_MODE_ONE_SHOT_STANDBY	2
+/*
+ * One-shot conversion or one-shot cycle in SCAN mode. It sets ADC_MODE[1:0] to ‘0x’ (ADC
+ * Shutdown) at the end of the conversion or at the end of the conversion cycle in SCAN
+ * mode (default).
+ */
+#define MCP3464_CONFIG3_CONV_MODE_ONE_SHOT_SHUTDOWN	0
+#define MCP3464_CONFIG3_CONV_MODE_MASK		GENMASK(7, 6)
+
+#define MCP3564_IRQ_REG			0x05
+#define MCP3464_EN_STP_MASK			BIT(0)
+#define MCP3464_EN_FASTCMD_MASK			BIT(1)
+#define MCP3464_IRQ_MODE_0_MASK			BIT(2)
+#define MCP3464_IRQ_MODE_1_MASK			BIT(3)
+#define MCP3564_POR_STATUS_MASK			BIT(4)
+#define MCP3564_CRCCFG_STATUS_MASK		BIT(5)
+#define MCP3564_DATA_READY_MASK			BIT(6)
+
+#define MCP3564_MUX_REG			0x06
+#define MCP3564_MUX_VIN_P_MASK			GENMASK(7, 4)
+#define MCP3564_MUX_VIN_N_MASK			GENMASK(3, 0)
+#define MCP3564_MUX_SET(x, y)			(FIELD_PREP(MCP3564_MUX_VIN_P_MASK, (x)) |	\
+						FIELD_PREP(MCP3564_MUX_VIN_N_MASK, (y)))
+
+#define MCP3564_SCAN_REG		0x07
+#define MCP3564_SCAN_CH_SEL_MASK		GENMASK(15, 0)
+#define MCP3564_SCAN_CH_SEL_SET(x)		FIELD_PREP(MCP3564_SCAN_CH_SEL_MASK, (x))
+#define MCP3564_SCAN_DELAY_TIME_MASK		GENMASK(23, 21)
+#define MCP3564_SCAN_DELAY_TIME_SET(x)		FIELD_PREP(MCP3564_SCAN_DELAY_TIME_MASK, (x))
+#define MCP3564_SCAN_DEFAULT_VALUE		0
+
+#define MCP3564_TIMER_REG		0x08
+#define MCP3564_TIMER_DEFAULT_VALUE		0
+
+#define MCP3564_OFFSETCAL_REG		0x09
+#define MCP3564_DEFAULT_OFFSETCAL		0
+
+#define MCP3564_GAINCAL_REG		0x0A
+#define MCP3564_DEFAULT_GAINCAL			0x00800000
+
+#define MCP3564_RESERVED_B_REG		0x0B
+
+#define MCP3564_RESERVED_C_REG		0x0C
+#define MCP3564_C_REG_DEFAULT			0x50
+#define MCP3564R_C_REG_DEFAULT			0x30
+
+#define MCP3564_LOCK_REG		0x0D
+#define MCP3564_LOCK_WRITE_ACCESS_PASSWORD	0xA5
+#define MCP3564_RESERVED_E_REG		0x0E
+#define MCP3564_CRCCFG_REG		0x0F
+
+#define MCP3564_CMD_HW_ADDR_MASK	GENMASK(7, 6)
+#define MCP3564_CMD_ADDR_MASK		GENMASK(5, 2)
+
+#define MCP3564_HW_ADDR_MASK		GENMASK(1, 0)
+
+#define MCP3564_FASTCMD_START	0x0A
+#define MCP3564_FASTCMD_RESET	0x0E
+
+#define MCP3461_HW_ID		0x0008
+#define MCP3462_HW_ID		0x0009
+#define MCP3464_HW_ID		0x000B
+
+#define MCP3561_HW_ID		0x000C
+#define MCP3562_HW_ID		0x000D
+#define MCP3564_HW_ID		0x000F
+#define MCP3564_HW_ID_MASK	GENMASK(3, 0)
+
+#define MCP3564R_INT_VREF_MV	2400
+
+#define MCP3564_DATA_READY_TIMEOUT_MS	2000
+
+#define MCP3564_MAX_PGA				8
+#define MCP3564_MAX_BURNOUT_IDX			4
+#define MCP3564_MAX_CHANNELS			66
+
+enum mcp3564_ids {
+	mcp3461,
+	mcp3462,
+	mcp3464,
+	mcp3561,
+	mcp3562,
+	mcp3564,
+	mcp3461r,
+	mcp3462r,
+	mcp3464r,
+	mcp3561r,
+	mcp3562r,
+	mcp3564r,
+};
+
+enum mcp3564_delay_time {
+	MCP3564_NO_DELAY,
+	MCP3564_DELAY_8_DMCLK,
+	MCP3564_DELAY_16_DMCLK,
+	MCP3564_DELAY_32_DMCLK,
+	MCP3564_DELAY_64_DMCLK,
+	MCP3564_DELAY_128_DMCLK,
+	MCP3564_DELAY_256_DMCLK,
+	MCP3564_DELAY_512_DMCLK
+};
+
+enum mcp3564_adc_conversion_mode {
+	MCP3564_ADC_MODE_DEFAULT,
+	MCP3564_ADC_MODE_SHUTDOWN,
+	MCP3564_ADC_MODE_STANDBY,
+	MCP3564_ADC_MODE_CONVERSION
+};
+
+enum mcp3564_adc_bias_current {
+	MCP3564_BOOST_CURRENT_x0_50,
+	MCP3564_BOOST_CURRENT_x0_66,
+	MCP3564_BOOST_CURRENT_x1_00,
+	MCP3564_BOOST_CURRENT_x2_00
+};
+
+enum mcp3564_burnout {
+	MCP3564_CONFIG0_CS_SEL_0_0_uA,
+	MCP3564_CONFIG0_CS_SEL_0_9_uA,
+	MCP3564_CONFIG0_CS_SEL_3_7_uA,
+	MCP3564_CONFIG0_CS_SEL_15_uA
+};
+
+enum mcp3564_channel_names {
+	MCP3564_CH0,
+	MCP3564_CH1,
+	MCP3564_CH2,
+	MCP3564_CH3,
+	MCP3564_CH4,
+	MCP3564_CH5,
+	MCP3564_CH6,
+	MCP3564_CH7,
+	MCP3564_AGND,
+	MCP3564_AVDD,
+	MCP3564_RESERVED, /* do not use */
+	MCP3564_REFIN_POZ,
+	MCP3564_REFIN_NEG,
+	MCP3564_TEMP_DIODE_P,
+	MCP3564_TEMP_DIODE_M,
+	MCP3564_INTERNAL_VCM,
+};
+
+enum mcp3564_oversampling {
+	MCP3564_OVERSAMPLING_RATIO_32,
+	MCP3564_OVERSAMPLING_RATIO_64,
+	MCP3564_OVERSAMPLING_RATIO_128,
+	MCP3564_OVERSAMPLING_RATIO_256,
+	MCP3564_OVERSAMPLING_RATIO_512,
+	MCP3564_OVERSAMPLING_RATIO_1024,
+	MCP3564_OVERSAMPLING_RATIO_2048,
+	MCP3564_OVERSAMPLING_RATIO_4096,
+	MCP3564_OVERSAMPLING_RATIO_8192,
+	MCP3564_OVERSAMPLING_RATIO_16384,
+	MCP3564_OVERSAMPLING_RATIO_20480,
+	MCP3564_OVERSAMPLING_RATIO_24576,
+	MCP3564_OVERSAMPLING_RATIO_40960,
+	MCP3564_OVERSAMPLING_RATIO_49152,
+	MCP3564_OVERSAMPLING_RATIO_81920,
+	MCP3564_OVERSAMPLING_RATIO_98304
+};
+
+static const unsigned int mcp3564_oversampling_avail[] = {
+	[MCP3564_OVERSAMPLING_RATIO_32] = 32,
+	[MCP3564_OVERSAMPLING_RATIO_64] = 64,
+	[MCP3564_OVERSAMPLING_RATIO_128] = 128,
+	[MCP3564_OVERSAMPLING_RATIO_256] = 256,
+	[MCP3564_OVERSAMPLING_RATIO_512] = 512,
+	[MCP3564_OVERSAMPLING_RATIO_1024] = 1024,
+	[MCP3564_OVERSAMPLING_RATIO_2048] = 2048,
+	[MCP3564_OVERSAMPLING_RATIO_4096] = 4096,
+	[MCP3564_OVERSAMPLING_RATIO_8192] = 8192,
+	[MCP3564_OVERSAMPLING_RATIO_16384] = 16384,
+	[MCP3564_OVERSAMPLING_RATIO_20480] = 20480,
+	[MCP3564_OVERSAMPLING_RATIO_24576] = 24576,
+	[MCP3564_OVERSAMPLING_RATIO_40960] = 40960,
+	[MCP3564_OVERSAMPLING_RATIO_49152] = 49152,
+	[MCP3564_OVERSAMPLING_RATIO_81920] = 81920,
+	[MCP3564_OVERSAMPLING_RATIO_98304] = 98304
+};
+
+/*
+ * Current Source/Sink Selection Bits for Sensor Bias (source on VIN+/sink on VIN-)
+ */
+static const int mcp3564_burnout_avail[][2] = {
+	[MCP3564_CONFIG0_CS_SEL_0_0_uA] = { 0, 0 },
+	[MCP3564_CONFIG0_CS_SEL_0_9_uA] = { 0, 900 },
+	[MCP3564_CONFIG0_CS_SEL_3_7_uA] = { 0, 3700 },
+	[MCP3564_CONFIG0_CS_SEL_15_uA] = { 0, 15000 }
+};
+
+/*
+ * BOOST[1:0]: ADC Bias Current Selection
+ */
+static const char * const mcp3564_boost_current_avail[] = {
+	[MCP3564_BOOST_CURRENT_x0_50] = "0.5",
+	[MCP3564_BOOST_CURRENT_x0_66] = "0.66",
+	[MCP3564_BOOST_CURRENT_x1_00] = "1",
+	[MCP3564_BOOST_CURRENT_x2_00] = "2",
+};
+
+/*
+ * Calibration bias values
+ */
+static const int mcp3564_calib_bias[] = {
+	-8388608,	/* min: -2^23		*/
+	 1,		/* step: 1		*/
+	 8388607	/* max:  2^23 - 1	*/
+};
+
+/*
+ * Calibration scale values
+ * The Gain Error Calibration register (GAINCAL) is an
+ * unsigned 24-bit register that holds the digital gain error
+ * calibration value, GAINCAL which could be calculated by
+ * GAINCAL (V/V) = (GAINCAL[23:0])/8388608
+ * The gain error calibration value range in equivalent voltage is [0; 2-2^(-23)]
+ */
+static const unsigned int mcp3564_calib_scale[] = {
+	0,		/* min:  0		*/
+	1,		/* step: 1/8388608	*/
+	16777215	/* max:  2 - 2^(-23)	*/
+};
+
+/* Programmable hardware gain x1/3, x1, x2, x4, x8, x16, x32, x64 */
+static const int mcp3564_hwgain_frac[] = {
+	3, 10,
+	1, 1,
+	2, 1,
+	4, 1,
+	8, 1,
+	16, 1,
+	32, 1,
+	64, 1
+};
+
+static const char *mcp3564_channel_labels[2] = {
+	"burnout_current", "temperature",
+};
+
+/**
+ * struct mcp3564_chip_info - chip specific data
+ * @name:		device name
+ * @num_channels:	number of channels
+ * @resolution:		ADC resolution
+ * @have_vref:		does the hardware have an internal voltage reference?
+ */
+struct mcp3564_chip_info {
+	const char	*name;
+	unsigned int	num_channels;
+	unsigned int	resolution;
+	bool		have_vref;
+};
+
+/**
+ * struct mcp3564_state - working data for a ADC device
+ * @chip_info:		chip specific data
+ * @spi:		SPI device structure
+ * @vref:		the regulator device used as a voltage reference in case
+ *			external voltage reference is used
+ * @vref_mv:		voltage reference value in miliVolts
+ * @lock:		synchronize access to driver's state members
+ * @dev_addr:		hardware device address
+ * @oversampling:	the index inside oversampling list of the ADC
+ * @hwgain:		the index inside hardware gain list of the ADC
+ * @scale_tbls:		table with precalculated scale
+ * @calib_bias:		calibration bias value
+ * @calib_scale:	calibration scale value
+ * @current_boost_mode:	the index inside current boost list of the ADC
+ * @burnout_mode:	the index inside current bias list of the ADC
+ * @auto_zeroing_mux:	set if ADC auto-zeroing algorithm is enabled
+ * @auto_zeroing_ref:	set if ADC auto-Zeroing Reference Buffer Setting is enabled
+ * @have_vref:		does the ADC have an internal voltage reference?
+ * @labels:		table with channels labels
+ */
+struct mcp3564_state {
+	const struct mcp3564_chip_info	*chip_info;
+	struct spi_device		*spi;
+	struct regulator		*vref;
+	unsigned short			vref_mv;
+	struct mutex			lock; /* Synchronize access to driver's state members */
+	u8				dev_addr;
+	enum mcp3564_oversampling	oversampling;
+	unsigned int			hwgain;
+	unsigned int			scale_tbls[MCP3564_MAX_PGA][2];
+	int				calib_bias;
+	int				calib_scale;
+	unsigned int			current_boost_mode;
+	enum mcp3564_burnout		burnout_mode;
+	bool				auto_zeroing_mux;
+	bool				auto_zeroing_ref;
+	bool				have_vref;
+	const char			*labels[MCP3564_MAX_CHANNELS];
+};
+
+static inline u8 mcp3564_cmd_write(u8 chip_addr, u8 reg)
+{
+	return FIELD_PREP(MCP3564_CMD_HW_ADDR_MASK, chip_addr) |
+	       FIELD_PREP(MCP3564_CMD_ADDR_MASK, reg) |
+	       BIT(1);
+}
+
+static inline u8 mcp3564_cmd_read(u8 chip_addr, u8 reg)
+{
+	return FIELD_PREP(MCP3564_CMD_HW_ADDR_MASK, chip_addr) |
+	       FIELD_PREP(MCP3564_CMD_ADDR_MASK, reg) |
+	       BIT(0);
+}
+
+static int mcp3564_read_8bits(struct mcp3564_state *adc, u8 reg, u8 *val)
+{
+	int ret;
+	u8 tx_buf;
+	u8 rx_buf;
+
+	tx_buf = mcp3564_cmd_read(adc->dev_addr, reg);
+
+	ret = spi_write_then_read(adc->spi, &tx_buf, sizeof(tx_buf),
+				  &rx_buf, sizeof(rx_buf));
+	*val = rx_buf;
+
+	return ret;
+}
+
+static int mcp3564_read_16bits(struct mcp3564_state *adc, u8 reg, u16 *val)
+{
+	int ret;
+	u8 tx_buf;
+	__be16 rx_buf;
+
+	tx_buf = mcp3564_cmd_read(adc->dev_addr, reg);
+
+	ret = spi_write_then_read(adc->spi, &tx_buf, sizeof(tx_buf),
+				  &rx_buf, sizeof(rx_buf));
+	*val = be16_to_cpu(rx_buf);
+
+	return ret;
+}
+
+static int mcp3564_read_32bits(struct mcp3564_state *adc, u8 reg, u32 *val)
+{
+	int ret;
+	u8 tx_buf;
+	__be32 rx_buf;
+
+	tx_buf = mcp3564_cmd_read(adc->dev_addr, reg);
+
+	ret = spi_write_then_read(adc->spi, &tx_buf, sizeof(tx_buf),
+				  &rx_buf, sizeof(rx_buf));
+	*val = be32_to_cpu(rx_buf);
+
+	return ret;
+}
+
+static int mcp3564_write_8bits(struct mcp3564_state *adc, u8 reg, u8 val)
+{
+	u8 tx_buf[2];
+
+	tx_buf[0] = mcp3564_cmd_write(adc->dev_addr, reg);
+	tx_buf[1] = val;
+
+	return spi_write_then_read(adc->spi, tx_buf, sizeof(tx_buf), NULL, 0);
+}
+
+static int mcp3564_write_24bits(struct mcp3564_state *adc, u8 reg, u32 val)
+{
+	__be32 val_be;
+
+	val |= (mcp3564_cmd_write(adc->dev_addr, reg) << 24);
+	val_be = cpu_to_be32(val);
+
+	return spi_write_then_read(adc->spi, &val_be, sizeof(val_be), NULL, 0);
+}
+
+static int mcp3564_fast_cmd(struct mcp3564_state *adc, u8 fast_cmd)
+{
+	u8 val;
+
+	val = FIELD_PREP(MCP3564_CMD_HW_ADDR_MASK, adc->dev_addr) |
+			 FIELD_PREP(MCP3564_CMD_ADDR_MASK, fast_cmd);
+
+	return spi_write_then_read(adc->spi, &val, 1, NULL, 0);
+}
+
+static int mcp3564_update_8bits(struct mcp3564_state *adc, u8 reg, u32 mask, u8 val)
+{
+	u8 tmp;
+	int ret;
+
+	val &= mask;
+
+	ret = mcp3564_read_8bits(adc, reg, &tmp);
+	if (ret < 0)
+		return ret;
+
+	tmp &= ~mask;
+	tmp |= val;
+
+	return mcp3564_write_8bits(adc, reg, tmp);
+}
+
+static int mcp3564_set_current_boost_mode(struct iio_dev *indio_dev,
+					  const struct iio_chan_spec *chan,
+					  unsigned int mode)
+{
+	struct mcp3564_state *adc = iio_priv(indio_dev);
+	int ret;
+
+	dev_dbg(&indio_dev->dev, "%s: %d\n", __func__, mode);
+
+	mutex_lock(&adc->lock);
+	ret = mcp3564_update_8bits(adc, MCP3564_CONFIG2_REG, MCP3564_CONFIG2_BOOST_CURRENT_MASK,
+				   FIELD_PREP(MCP3564_CONFIG2_BOOST_CURRENT_MASK, mode));
+
+	if (ret)
+		dev_err(&indio_dev->dev, "Failed to configure CONFIG2 register\n");
+	else
+		adc->current_boost_mode = mode;
+
+	mutex_unlock(&adc->lock);
+
+	return ret;
+}
+
+static int mcp3564_get_current_boost_mode(struct iio_dev *indio_dev,
+					  const struct iio_chan_spec *chan)
+{
+	struct mcp3564_state *adc = iio_priv(indio_dev);
+
+	return adc->current_boost_mode;
+}
+
+static const struct iio_enum mcp3564_current_boost_mode_enum = {
+	.items = mcp3564_boost_current_avail,
+	.num_items = ARRAY_SIZE(mcp3564_boost_current_avail),
+	.set = mcp3564_set_current_boost_mode,
+	.get = mcp3564_get_current_boost_mode,
+};
+
+static const struct iio_chan_spec_ext_info mcp3564_ext_info[] = {
+	IIO_ENUM("boost_current_gain", IIO_SHARED_BY_ALL, &mcp3564_current_boost_mode_enum),
+	{
+		.name = "boost_current_gain_available",
+		.shared = IIO_SHARED_BY_ALL,
+		.read = iio_enum_available_read,
+		.private = (uintptr_t)&mcp3564_current_boost_mode_enum,
+	},
+	{ }
+};
+
+static ssize_t mcp3564_auto_zeroing_mux_show(struct device *dev,
+					     struct device_attribute *attr,
+					     char *buf)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct mcp3564_state *adc = iio_priv(indio_dev);
+
+	return sysfs_emit(buf, "%d\n", adc->auto_zeroing_mux);
+}
+
+static ssize_t mcp3564_auto_zeroing_mux_store(struct device *dev,
+					      struct device_attribute *attr,
+					      const char *buf, size_t len)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct mcp3564_state *adc = iio_priv(indio_dev);
+	bool auto_zero;
+	int ret;
+
+	ret = kstrtobool(buf, &auto_zero);
+	if (ret)
+		return ret;
+
+	mutex_lock(&adc->lock);
+	ret = mcp3564_update_8bits(adc, MCP3564_CONFIG2_REG, MCP3564_CONFIG2_AZ_MUX_MASK,
+				   FIELD_PREP(MCP3564_CONFIG2_AZ_MUX_MASK, auto_zero));
+
+	if (ret)
+		dev_err(&indio_dev->dev, "Failed to update CONFIG2 register\n");
+	else
+		adc->auto_zeroing_mux = auto_zero;
+
+	mutex_unlock(&adc->lock);
+
+	return ret ? ret : len;
+}
+
+static ssize_t mcp3564_auto_zeroing_ref_show(struct device *dev,
+					     struct device_attribute *attr,
+					     char *buf)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct mcp3564_state *adc = iio_priv(indio_dev);
+
+	return sysfs_emit(buf, "%d\n", adc->auto_zeroing_ref);
+}
+
+static ssize_t mcp3564_auto_zeroing_ref_store(struct device *dev,
+					      struct device_attribute *attr,
+					      const char *buf, size_t len)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct mcp3564_state *adc = iio_priv(indio_dev);
+	bool auto_zero;
+	int ret;
+
+	ret = kstrtobool(buf, &auto_zero);
+	if (ret)
+		return ret;
+
+	mutex_lock(&adc->lock);
+	ret = mcp3564_update_8bits(adc, MCP3564_CONFIG2_REG, MCP3564_CONFIG2_AZ_REF_MASK,
+				   FIELD_PREP(MCP3564_CONFIG2_AZ_REF_MASK, auto_zero));
+
+	if (ret)
+		dev_err(&indio_dev->dev, "Failed to update CONFIG2 register\n");
+	else
+		adc->auto_zeroing_ref = auto_zero;
+
+	mutex_unlock(&adc->lock);
+
+	return ret ? ret : len;
+}
+
+static const struct iio_chan_spec mcp3564_channel_template = {
+	.type = IIO_VOLTAGE,
+	.indexed = 1,
+	.differential = 1,
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+	.info_mask_shared_by_all  = BIT(IIO_CHAN_INFO_SCALE)		|
+				BIT(IIO_CHAN_INFO_CALIBSCALE)		|
+				BIT(IIO_CHAN_INFO_CALIBBIAS)		|
+				BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO),
+	.info_mask_shared_by_all_available = BIT(IIO_CHAN_INFO_SCALE)	|
+				BIT(IIO_CHAN_INFO_CALIBSCALE) |
+				BIT(IIO_CHAN_INFO_CALIBBIAS)		|
+				BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO),
+	.ext_info = mcp3564_ext_info,
+};
+
+static const struct iio_chan_spec mcp3564_temp_channel_template = {
+	.type = IIO_TEMP,
+	.channel = 0,
+	.address = ((MCP3564_TEMP_DIODE_P << 4) | MCP3564_TEMP_DIODE_M),
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+	.info_mask_shared_by_all  = BIT(IIO_CHAN_INFO_SCALE)		|
+			BIT(IIO_CHAN_INFO_CALIBSCALE)			|
+			BIT(IIO_CHAN_INFO_CALIBBIAS)			|
+			BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO),
+	.info_mask_shared_by_all_available = BIT(IIO_CHAN_INFO_SCALE)	|
+			BIT(IIO_CHAN_INFO_CALIBSCALE) |
+			BIT(IIO_CHAN_INFO_CALIBBIAS)			|
+			BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO),
+};
+
+static const struct iio_chan_spec mcp3564_burnout_channel_template = {
+	.type = IIO_CURRENT,
+	.output = true,
+	.channel = 0,
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+	.info_mask_separate_available = BIT(IIO_CHAN_INFO_RAW),
+};
+
+/*
+ * Number of channels could be calculated:
+ * num_channels = single_ended_input + differential_input + temperature + burnout
+ * Eg. for MCP3561 (only 2 channels available: CH0 and CH1)
+ * single_ended_input = (CH0 - GND), (CH1 -  GND) = 2
+ * differential_input = (CH0 - CH1), (CH0 -  CH0) = 2
+ * num_channels = 2 + 2 + 2
+ * Generic formula is:
+ * num_channels = P^R(Number_of_single_ended_channels, 2) + 2 (temperature + burnout channels)
+ * P^R(Number_of_single_ended_channels, 2) is Permutations with Replacement of
+ *     Number_of_single_ended_channels taken by 2
+ */
+static const struct mcp3564_chip_info mcp3564_chip_infos_tbl[] = {
+	[mcp3461] = {
+		.name = "mcp3461",
+		.num_channels = 6,
+		.resolution = 16,
+		.have_vref = false,
+	},
+	[mcp3462] = {
+		.name = "mcp3462",
+		.num_channels = 18,
+		.resolution = 16,
+		.have_vref = false,
+	},
+	[mcp3464] = {
+		.name = "mcp3464",
+		.num_channels = 66,
+		.resolution = 16,
+		.have_vref = false,
+	},
+	[mcp3561] = {
+		.name = "mcp3561",
+		.num_channels = 6,
+		.resolution = 24,
+		.have_vref = false,
+	},
+	[mcp3562] = {
+		.name = "mcp3562",
+		.num_channels = 18,
+		.resolution = 24,
+		.have_vref = false,
+	},
+	[mcp3564] = {
+		.name = "mcp3564",
+		.num_channels = 66,
+		.resolution = 24,
+		.have_vref = false,
+	},
+	[mcp3461r] = {
+		.name = "mcp3461r",
+		.num_channels = 6,
+		.resolution = 16,
+		.have_vref = false,
+	},
+	[mcp3462r] = {
+		.name = "mcp3462r",
+		.num_channels = 18,
+		.resolution = 16,
+		.have_vref = true,
+	},
+	[mcp3464r] = {
+		.name = "mcp3464r",
+		.num_channels = 66,
+		.resolution = 16,
+		.have_vref = true,
+	},
+	[mcp3561r] = {
+		.name = "mcp3561r",
+		.num_channels = 6,
+		.resolution = 24,
+		.have_vref = true,
+	},
+	[mcp3562r] = {
+		.name = "mcp3562r",
+		.num_channels = 18,
+		.resolution = 24,
+		.have_vref = true,
+	},
+	[mcp3564r] = {
+		.name = "mcp3564r",
+		.num_channels = 66,
+		.resolution = 24,
+		.have_vref = true,
+	},
+};
+
+static int mcp3564_read_single_value(struct iio_dev *indio_dev,
+				     struct iio_chan_spec const *channel,
+				     int *val)
+{
+	struct mcp3564_state *adc = iio_priv(indio_dev);
+	int ret;
+	u8 tmp;
+	int ret_read = 0;
+
+	ret = mcp3564_write_8bits(adc, MCP3564_MUX_REG, channel->address);
+	if (ret)
+		return ret;
+
+	/* Start ADC Conversion using fast command (overwrites ADC_MODE[1:0] = 11) */
+	ret = mcp3564_fast_cmd(adc, MCP3564_FASTCMD_START);
+	if (ret)
+		return ret;
+
+	/*
+	 * Check if the conversion is ready. If not, wait a little bit, and
+	 * in case of timeout exit with an error.
+	 */
+	ret = read_poll_timeout(mcp3564_read_8bits, ret_read,
+				ret_read || !(tmp & MCP3564_DATA_READY_MASK),
+				20000, MCP3564_DATA_READY_TIMEOUT_MS * 1000, true,
+				adc, MCP3564_IRQ_REG, &tmp);
+
+	/* failed to read status register */
+	if (ret_read)
+		return ret_read;
+
+	if (ret)
+		return ret;
+
+	if (tmp & MCP3564_DATA_READY_MASK)
+		/* failing to finish conversion */
+		return -EBUSY;
+
+	return mcp3564_read_32bits(adc, MCP3564_ADCDATA_REG, val);
+}
+
+static int mcp3564_read_avail(struct iio_dev *indio_dev,
+			      struct iio_chan_spec const *channel,
+			      const int **vals, int *type,
+			      int *length, long mask)
+{
+	struct mcp3564_state *adc = iio_priv(indio_dev);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		if (!channel->output)
+			return -EINVAL;
+
+		*vals = mcp3564_burnout_avail[0];
+		*length = ARRAY_SIZE(mcp3564_burnout_avail) * 2;
+		*type = IIO_VAL_INT_PLUS_MICRO;
+		return IIO_AVAIL_LIST;
+	case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
+		*vals = mcp3564_oversampling_avail;
+		*length = ARRAY_SIZE(mcp3564_oversampling_avail);
+		*type = IIO_VAL_INT;
+		return IIO_AVAIL_LIST;
+	case IIO_CHAN_INFO_SCALE:
+		*vals = (int *)adc->scale_tbls;
+		*length = ARRAY_SIZE(adc->scale_tbls) * 2;
+		*type = IIO_VAL_INT_PLUS_NANO;
+		return IIO_AVAIL_LIST;
+	case IIO_CHAN_INFO_CALIBBIAS:
+		*vals = mcp3564_calib_bias;
+		*type = IIO_VAL_INT;
+		return IIO_AVAIL_RANGE;
+	case IIO_CHAN_INFO_CALIBSCALE:
+		*vals = mcp3564_calib_scale;
+		*type = IIO_VAL_INT;
+		return IIO_AVAIL_RANGE;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int mcp3564_read_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *channel,
+			    int *val, int *val2, long mask)
+{
+	struct mcp3564_state *adc = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		if (channel->output) {
+			mutex_lock(&adc->lock);
+			*val = mcp3564_burnout_avail[adc->burnout_mode][0];
+			*val2 = mcp3564_burnout_avail[adc->burnout_mode][1];
+			mutex_unlock(&adc->lock);
+			return IIO_VAL_INT_PLUS_MICRO;
+		}
+
+		ret = mcp3564_read_single_value(indio_dev, channel, val);
+		if (ret)
+			return -EINVAL;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		mutex_lock(&adc->lock);
+		*val = adc->scale_tbls[adc->hwgain][0];
+		*val2 = adc->scale_tbls[adc->hwgain][1];
+		mutex_unlock(&adc->lock);
+		return IIO_VAL_INT_PLUS_NANO;
+	case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
+		*val = mcp3564_oversampling_avail[adc->oversampling];
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_CALIBBIAS:
+		*val = adc->calib_bias;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_CALIBSCALE:
+		*val = adc->calib_scale;
+		return IIO_VAL_INT;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int mcp3564_write_raw_get_fmt(struct iio_dev *indio_dev,
+				     struct iio_chan_spec const *chan,
+				     long info)
+{
+	switch (info) {
+	case IIO_CHAN_INFO_RAW:
+		return IIO_VAL_INT_PLUS_MICRO;
+	case IIO_CHAN_INFO_CALIBBIAS:
+	case IIO_CHAN_INFO_CALIBSCALE:
+	case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		return IIO_VAL_INT_PLUS_NANO;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int mcp3564_write_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *channel, int val,
+			     int val2, long mask)
+{
+	struct mcp3564_state *adc = iio_priv(indio_dev);
+	int tmp;
+	unsigned int hwgain;
+	enum mcp3564_burnout burnout;
+	int ret = 0;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		if (!channel->output)
+			return -EINVAL;
+
+		for (burnout = 0; burnout < MCP3564_MAX_BURNOUT_IDX; burnout++)
+			if (val == mcp3564_burnout_avail[burnout][0] &&
+			    val2 == mcp3564_burnout_avail[burnout][1])
+				break;
+
+		if (burnout == MCP3564_MAX_BURNOUT_IDX)
+			return -EINVAL;
+
+		if (burnout == adc->burnout_mode)
+			return ret;
+
+		mutex_lock(&adc->lock);
+		ret = mcp3564_update_8bits(adc, MCP3564_CONFIG0_REG,
+					   MCP3564_CONFIG0_CS_SEL_MASK,
+					   FIELD_PREP(MCP3564_CONFIG0_CS_SEL_MASK, burnout));
+
+		if (ret)
+			dev_err(&indio_dev->dev, "Failed to configure burnout current\n");
+		else
+			adc->burnout_mode = burnout;
+		mutex_unlock(&adc->lock);
+		return ret;
+	case IIO_CHAN_INFO_CALIBBIAS:
+		if (val < mcp3564_calib_bias[0] || val > mcp3564_calib_bias[2])
+			return -EINVAL;
+
+		mutex_lock(&adc->lock);
+		ret = mcp3564_write_24bits(adc, MCP3564_OFFSETCAL_REG, val);
+		if (!ret)
+			adc->calib_bias = val;
+		mutex_unlock(&adc->lock);
+		return ret;
+	case IIO_CHAN_INFO_CALIBSCALE:
+		if (val < mcp3564_calib_scale[0] || val > mcp3564_calib_scale[2])
+			return -EINVAL;
+
+		if (adc->calib_scale == val)
+			return ret;
+
+		mutex_lock(&adc->lock);
+		ret = mcp3564_write_24bits(adc, MCP3564_GAINCAL_REG, val);
+		if (!ret)
+			adc->calib_scale = val;
+		mutex_unlock(&adc->lock);
+		return ret;
+	case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
+		if (val < 0)
+			return -EINVAL;
+
+		tmp = find_closest(val, mcp3564_oversampling_avail,
+				   ARRAY_SIZE(mcp3564_oversampling_avail));
+
+		if (adc->oversampling == tmp)
+			return ret;
+
+		mutex_lock(&adc->lock);
+		ret = mcp3564_update_8bits(adc, MCP3564_CONFIG1_REG,
+					   MCP3564_CONFIG1_OVERSPL_RATIO_MASK,
+					   FIELD_PREP(MCP3564_CONFIG1_OVERSPL_RATIO_MASK,
+						      adc->oversampling));
+		if (!ret)
+			adc->oversampling = tmp;
+		mutex_unlock(&adc->lock);
+		return ret;
+	case IIO_CHAN_INFO_SCALE:
+		for (hwgain = 0; hwgain < MCP3564_MAX_PGA; hwgain++)
+			if (val == adc->scale_tbls[hwgain][0] &&
+			    val2 == adc->scale_tbls[hwgain][1])
+				break;
+
+		if (hwgain == MCP3564_MAX_PGA)
+			return -EINVAL;
+
+		if (hwgain == adc->hwgain)
+			return ret;
+
+		mutex_lock(&adc->lock);
+		ret = mcp3564_update_8bits(adc, MCP3564_CONFIG2_REG,
+					   MCP3564_CONFIG2_HARDWARE_GAIN_MASK,
+					   FIELD_PREP(MCP3564_CONFIG2_HARDWARE_GAIN_MASK, hwgain));
+		if (!ret)
+			adc->hwgain = hwgain;
+
+		mutex_unlock(&adc->lock);
+		return ret;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int mcp3564_read_label(struct iio_dev *indio_dev,
+			      struct iio_chan_spec const *chan, char *label)
+{
+	struct mcp3564_state *adc = iio_priv(indio_dev);
+
+	return sprintf(label, "%s\n", adc->labels[chan->scan_index]);
+}
+
+static int mcp3564_parse_fw_children(struct iio_dev *indio_dev)
+{
+	struct mcp3564_state *adc = iio_priv(indio_dev);
+	struct device *dev = &adc->spi->dev;
+	struct iio_chan_spec *channels;
+	struct fwnode_handle *child;
+	struct iio_chan_spec chanspec = mcp3564_channel_template;
+	struct iio_chan_spec temp_chanspec = mcp3564_temp_channel_template;
+	struct iio_chan_spec burnout_chanspec = mcp3564_burnout_channel_template;
+	int chan_idx = 0;
+	unsigned int num_ch;
+	u32 inputs[2];
+	const char *node_name;
+	const char *label;
+	int ret;
+
+	num_ch = device_get_child_node_count(dev);
+	if (num_ch == 0)
+		return dev_err_probe(&indio_dev->dev, -ENODEV,
+				     "FW has no channels defined\n");
+
+	/* Reserve space for burnout and temperature channel */
+	num_ch += 2;
+
+	if (num_ch > adc->chip_info->num_channels)
+		return dev_err_probe(dev, -EINVAL, "Too many channels %d > %d\n",
+				     num_ch, adc->chip_info->num_channels);
+
+	channels = devm_kcalloc(dev, num_ch, sizeof(*channels), GFP_KERNEL);
+	if (!channels)
+		return dev_err_probe(dev, -ENOMEM, "Can't allocate memory\n");
+
+	device_for_each_child_node(dev, child) {
+		node_name = fwnode_get_name(child);
+
+		if (fwnode_property_present(child, "diff-channels")) {
+			ret = fwnode_property_read_u32_array(child,
+							     "diff-channels",
+							     inputs,
+							     ARRAY_SIZE(inputs));
+			chanspec.differential = 1;
+		} else {
+			ret = fwnode_property_read_u32(child, "reg", &inputs[0]);
+
+			chanspec.differential = 0;
+			inputs[1] = MCP3564_AGND;
+		}
+		if (ret) {
+			fwnode_handle_put(child);
+			return ret;
+		}
+
+		if (inputs[0] > MCP3564_INTERNAL_VCM ||
+		    inputs[1] > MCP3564_INTERNAL_VCM) {
+			fwnode_handle_put(child);
+			return dev_err_probe(&indio_dev->dev, -EINVAL,
+					     "Channel index > %d, for %s\n",
+					     MCP3564_INTERNAL_VCM + 1,
+					     node_name);
+		}
+
+		chanspec.address = (inputs[0] << 4) | inputs[1];
+		chanspec.channel = inputs[0];
+		chanspec.channel2 = inputs[1];
+		chanspec.scan_index = chan_idx;
+
+		if (fwnode_property_present(child, "label")) {
+			fwnode_property_read_string(child, "label", &label);
+			adc->labels[chan_idx] = label;
+		}
+
+		channels[chan_idx] = chanspec;
+		chan_idx++;
+	}
+
+	/* Add burnout current channel */
+	burnout_chanspec.scan_index = chan_idx;
+	channels[chan_idx] = burnout_chanspec;
+	adc->labels[chan_idx] = mcp3564_channel_labels[0];
+	chanspec.scan_index = chan_idx;
+	chan_idx++;
+
+	/* Add temperature channel */
+	temp_chanspec.scan_index = chan_idx;
+	channels[chan_idx] = temp_chanspec;
+	adc->labels[chan_idx] = mcp3564_channel_labels[1];
+	chan_idx++;
+
+	indio_dev->num_channels = chan_idx;
+	indio_dev->channels = channels;
+
+	return 0;
+}
+
+static void mcp3564_disable_reg(void *reg)
+{
+	regulator_disable(reg);
+}
+
+static void mcp3564_fill_scale_tbls(struct mcp3564_state *adc)
+{
+	unsigned int pow = adc->chip_info->resolution - 1;
+	int ref;
+	unsigned int i;
+	int tmp0;
+	u64 tmp1;
+
+	for (i = 0; i < MCP3564_MAX_PGA; i++) {
+		ref = adc->vref_mv;
+		tmp1 = ((u64)ref * NANO) >> pow;
+		div_u64_rem(tmp1, NANO, &tmp0);
+
+		tmp1 = tmp1 * mcp3564_hwgain_frac[(2 * i) + 1];
+		tmp0 = (int)div_u64(tmp1, mcp3564_hwgain_frac[2 * i]);
+
+		adc->scale_tbls[i][1] = tmp0;
+	}
+}
+
+static int mcp3564_config(struct iio_dev *indio_dev)
+{
+	struct mcp3564_state *adc = iio_priv(indio_dev);
+	struct device *dev = &adc->spi->dev;
+	const struct spi_device_id *dev_id;
+	u8 tmp_reg;
+	u16 tmp_u16;
+	enum mcp3564_ids ids;
+	int ret = 0;
+	unsigned int tmp = 0x01;
+	bool err = false;
+
+	/*
+	 * The address is set on a per-device basis by fuses in the factory,
+	 * configured on request. If not requested, the fuses are set for 0x1.
+	 * The device address is part of the device markings to avoid
+	 * potential confusion. This address is coded on two bits, so four possible
+	 * addresses are available when multiple devices are present on the same
+	 * SPI bus with only one Chip Select line for all devices.
+	 */
+	device_property_read_u32(dev, "microchip,hw-device-address", &tmp);
+
+	if (tmp > 3) {
+		dev_err_probe(dev, tmp,
+			      "invalid device address. Must be in range 0-3.\n");
+		return -EINVAL;
+	}
+
+	adc->dev_addr = FIELD_GET(MCP3564_HW_ADDR_MASK, tmp);
+
+	dev_dbg(dev, "use HW device address %i\n", adc->dev_addr);
+
+	ret = mcp3564_read_8bits(adc, MCP3564_RESERVED_C_REG, &tmp_reg);
+	if (ret < 0)
+		return ret;
+
+	switch (tmp_reg) {
+	case MCP3564_C_REG_DEFAULT:
+		adc->have_vref = false;
+		break;
+	case MCP3564R_C_REG_DEFAULT:
+		adc->have_vref = true;
+		break;
+	default:
+		dev_info(dev, "Unknown chip found: %d\n", tmp_reg);
+		err = true;
+	}
+
+	if (!err) {
+		ret = mcp3564_read_16bits(adc, MCP3564_RESERVED_E_REG, &tmp_u16);
+		if (ret < 0)
+			return ret;
+
+		switch (tmp_u16 & MCP3564_HW_ID_MASK) {
+		case MCP3461_HW_ID:
+			if (adc->have_vref)
+				ids = mcp3461r;
+			else
+				ids = mcp3461;
+			break;
+		case MCP3462_HW_ID:
+			if (adc->have_vref)
+				ids = mcp3462r;
+			else
+				ids = mcp3462;
+			break;
+		case MCP3464_HW_ID:
+			if (adc->have_vref)
+				ids = mcp3464r;
+			else
+				ids = mcp3464;
+			break;
+		case MCP3561_HW_ID:
+			if (adc->have_vref)
+				ids = mcp3561r;
+			else
+				ids = mcp3561;
+			break;
+		case MCP3562_HW_ID:
+			if (adc->have_vref)
+				ids = mcp3562r;
+			else
+				ids = mcp3562;
+			break;
+		case MCP3564_HW_ID:
+			if (adc->have_vref)
+				ids = mcp3564r;
+			else
+				ids = mcp3564;
+			break;
+		default:
+			dev_info(dev, "Unknown chip found: %d\n", tmp_u16);
+			err = true;
+		}
+	}
+
+	if (err) {
+		/*
+		 * If failed to identify the hardware based on internal registers,
+		 * try using fallback compatible in device tree to deal with some newer part number.
+		 */
+		adc->chip_info = spi_get_device_match_data(adc->spi);
+		if (!adc->chip_info) {
+			dev_id = spi_get_device_id(adc->spi);
+			adc->chip_info = (const struct mcp3564_chip_info *)dev_id->driver_data;
+		}
+
+		adc->have_vref = adc->chip_info->have_vref;
+	} else {
+		adc->chip_info = &mcp3564_chip_infos_tbl[ids];
+	}
+
+	dev_dbg(dev, "Found %s chip\n", adc->chip_info->name);
+
+	adc->vref = devm_regulator_get_optional(dev, "vref");
+	if (IS_ERR(adc->vref)) {
+		if (PTR_ERR(adc->vref) != -ENODEV)
+			return dev_err_probe(dev, PTR_ERR(adc->vref),
+					     "failed to get regulator\n");
+
+		/* Check if chip has internal vref */
+		if (!adc->have_vref)
+			return dev_err_probe(dev, PTR_ERR(adc->vref),
+					     "Unknown Vref\n");
+		adc->vref = NULL;
+		dev_dbg(dev, "%s: Using internal Vref\n", __func__);
+	} else {
+		ret = regulator_enable(adc->vref);
+		if (ret)
+			return ret;
+
+		ret = devm_add_action_or_reset(dev, mcp3564_disable_reg,
+					       adc->vref);
+		if (ret)
+			return ret;
+
+		dev_dbg(dev, "%s: Using External Vref\n", __func__);
+
+		ret = regulator_get_voltage(adc->vref);
+		if (ret < 0)
+			return dev_err_probe(dev, ret,
+					     "Failed to read vref regulator\n");
+
+		adc->vref_mv = ret / MILLI;
+	}
+
+	ret = mcp3564_parse_fw_children(indio_dev);
+	if (ret)
+		return ret;
+
+	/*
+	 * Command sequence that ensures a recovery with the desired settings
+	 * in any cases of loss-of-power scenario (Full Chip Reset):
+	 *  - Write LOCK register to 0xA5
+	 *  - Write IRQ register to 0x03
+	 *  - Send "Device Full Reset" fast command
+	 *  - Wait 1ms for "Full Reset" to complete
+	 */
+	ret = mcp3564_write_8bits(adc, MCP3564_LOCK_REG, MCP3564_LOCK_WRITE_ACCESS_PASSWORD);
+	if (ret)
+		return ret;
+
+	ret = mcp3564_write_8bits(adc, MCP3564_IRQ_REG, 0x03);
+	if (ret)
+		return ret;
+
+	ret = mcp3564_fast_cmd(adc, MCP3564_FASTCMD_RESET);
+	if (ret)
+		return ret;
+
+	/*
+	 * After Full reset wait some time to be able to fully reset the part and place
+	 * it back in a default configuration.
+	 * From datasheet: POR (Power On Reset Time) is ~1us
+	 * 1ms should be enough.
+	 */
+	mdelay(1);
+
+	/* set a gain of 1x for GAINCAL */
+	ret = mcp3564_write_24bits(adc, MCP3564_GAINCAL_REG, MCP3564_DEFAULT_GAINCAL);
+	if (ret)
+		return ret;
+
+	adc->calib_scale = MCP3564_DEFAULT_GAINCAL;
+
+	ret = mcp3564_write_24bits(adc, MCP3564_OFFSETCAL_REG, MCP3564_DEFAULT_OFFSETCAL);
+	if (ret)
+		return ret;
+
+	ret = mcp3564_write_24bits(adc, MCP3564_TIMER_REG, MCP3564_TIMER_DEFAULT_VALUE);
+	if (ret)
+		return ret;
+
+	ret = mcp3564_write_24bits(adc, MCP3564_SCAN_REG,
+				   MCP3564_SCAN_DELAY_TIME_SET(MCP3564_NO_DELAY) |
+				   MCP3564_SCAN_CH_SEL_SET(MCP3564_SCAN_DEFAULT_VALUE));
+	if (ret)
+		return ret;
+
+	ret = mcp3564_write_8bits(adc, MCP3564_MUX_REG, MCP3564_MUX_SET(MCP3564_CH0, MCP3564_CH1));
+	if (ret)
+		return ret;
+
+	ret = mcp3564_write_8bits(adc, MCP3564_IRQ_REG,
+				  FIELD_PREP(MCP3464_EN_FASTCMD_MASK, 1) |
+				  FIELD_PREP(MCP3464_EN_STP_MASK, 1));
+	if (ret)
+		return ret;
+
+	tmp_reg = FIELD_PREP(MCP3464_CONFIG3_CONV_MODE_MASK,
+			     MCP3464_CONFIG3_CONV_MODE_ONE_SHOT_STANDBY);
+	tmp_reg |= FIELD_PREP(MCP3464_CONFIG3_DATA_FORMAT_MASK,
+			      MCP3464_CONFIG3_DATA_FMT_32B_SGN_EXT);
+	tmp_reg |= MCP3464_CONFIG3_EN_OFFCAL_MASK;
+	tmp_reg |= MCP3464_CONFIG3_EN_GAINCAL_MASK;
+
+	ret = mcp3564_write_8bits(adc, MCP3564_CONFIG3_REG, tmp_reg);
+	if (ret)
+		return ret;
+
+	tmp_reg = FIELD_PREP(MCP3564_CONFIG2_BOOST_CURRENT_MASK, MCP3564_BOOST_CURRENT_x1_00);
+	tmp_reg |= FIELD_PREP(MCP3564_CONFIG2_HARDWARE_GAIN_MASK, 0x01);
+	tmp_reg |= FIELD_PREP(MCP3564_CONFIG2_AZ_MUX_MASK, 1);
+
+	ret = mcp3564_write_8bits(adc, MCP3564_CONFIG2_REG, tmp_reg);
+	if (ret)
+		return ret;
+
+	adc->hwgain = 0x01;
+	adc->auto_zeroing_mux = true;
+	adc->auto_zeroing_ref = false;
+	adc->current_boost_mode = MCP3564_BOOST_CURRENT_x1_00;
+
+	tmp_reg = FIELD_PREP(MCP3564_CONFIG1_OVERSPL_RATIO_MASK, MCP3564_OVERSAMPLING_RATIO_98304);
+
+	ret = mcp3564_write_8bits(adc, MCP3564_CONFIG1_REG, tmp_reg);
+	if (ret)
+		return ret;
+
+	adc->oversampling = MCP3564_OVERSAMPLING_RATIO_98304;
+
+	tmp_reg = FIELD_PREP(MCP3564_CONFIG0_ADC_MODE_MASK, MCP3564_ADC_MODE_STANDBY);
+	tmp_reg |= FIELD_PREP(MCP3564_CONFIG0_CS_SEL_MASK, MCP3564_CONFIG0_CS_SEL_0_0_uA);
+	tmp_reg |= FIELD_PREP(MCP3564_CONFIG0_CLK_SEL_MASK, MCP3564_CONFIG0_USE_INT_CLK);
+	tmp_reg |= MCP3456_CONFIG0_BIT6_DEFAULT;
+
+	if (!adc->vref) {
+		tmp_reg |= FIELD_PREP(MCP3456_CONFIG0_VREF_MASK, 1);
+		adc->vref_mv = MCP3564R_INT_VREF_MV;
+	}
+
+	ret = mcp3564_write_8bits(adc, MCP3564_CONFIG0_REG, tmp_reg);
+
+	adc->burnout_mode = MCP3564_CONFIG0_CS_SEL_0_0_uA;
+
+	return ret;
+}
+
+static IIO_DEVICE_ATTR(auto_zeroing_ref_enable, 0644,
+		       mcp3564_auto_zeroing_ref_show,
+		       mcp3564_auto_zeroing_ref_store, 0);
+
+static IIO_DEVICE_ATTR(auto_zeroing_mux_enable, 0644,
+		       mcp3564_auto_zeroing_mux_show,
+		       mcp3564_auto_zeroing_mux_store, 0);
+
+static struct attribute *mcp3564_attributes[] = {
+	&iio_dev_attr_auto_zeroing_mux_enable.dev_attr.attr,
+	NULL
+};
+
+static struct attribute *mcp3564r_attributes[] = {
+	&iio_dev_attr_auto_zeroing_mux_enable.dev_attr.attr,
+	&iio_dev_attr_auto_zeroing_ref_enable.dev_attr.attr,
+	NULL
+};
+
+static struct attribute_group mcp3564_attribute_group = {
+	.attrs = mcp3564_attributes,
+};
+
+static struct attribute_group mcp3564r_attribute_group = {
+	.attrs = mcp3564r_attributes,
+};
+
+static const struct iio_info mcp3564_info = {
+	.read_raw = mcp3564_read_raw,
+	.read_avail = mcp3564_read_avail,
+	.write_raw = mcp3564_write_raw,
+	.write_raw_get_fmt = mcp3564_write_raw_get_fmt,
+	.read_label = mcp3564_read_label,
+	.attrs = &mcp3564_attribute_group,
+};
+
+static const struct iio_info mcp3564r_info = {
+	.read_raw = mcp3564_read_raw,
+	.read_avail = mcp3564_read_avail,
+	.write_raw = mcp3564_write_raw,
+	.write_raw_get_fmt = mcp3564_write_raw_get_fmt,
+	.read_label = mcp3564_read_label,
+	.attrs = &mcp3564r_attribute_group,
+};
+
+static int mcp3564_probe(struct spi_device *spi)
+{
+	int ret;
+	struct iio_dev *indio_dev;
+	struct mcp3564_state *adc;
+
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adc));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	adc = iio_priv(indio_dev);
+	adc->spi = spi;
+
+	dev_dbg(&spi->dev, "%s: probe(spi = 0x%p)\n", __func__, spi);
+
+	/*
+	 * Do any chip specific initialization, e.g:
+	 * read/write some registers
+	 * enable/disable certain channels
+	 * change the sampling rate to the requested value
+	 */
+	ret = mcp3564_config(indio_dev);
+	if (ret)
+		return dev_err_probe(&spi->dev, ret,
+				     "Can't configure MCP356X device\n");
+
+	dev_dbg(&spi->dev, "%s: Vref (mV): %d\n", __func__, adc->vref_mv);
+
+	mcp3564_fill_scale_tbls(adc);
+
+	indio_dev->name = adc->chip_info->name;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	if (!adc->vref)
+		indio_dev->info = &mcp3564r_info;
+	else
+		indio_dev->info = &mcp3564_info;
+
+	mutex_init(&adc->lock);
+
+	ret = devm_iio_device_register(&spi->dev, indio_dev);
+	if (ret)
+		return dev_err_probe(&spi->dev, ret,
+				     "Can't register IIO device\n");
+
+	return 0;
+}
+
+static const struct of_device_id mcp3564_dt_ids[] = {
+	{ .compatible = "microchip,mcp3461", .data = &mcp3564_chip_infos_tbl[mcp3461] },
+	{ .compatible = "microchip,mcp3462", .data = &mcp3564_chip_infos_tbl[mcp3462] },
+	{ .compatible = "microchip,mcp3464", .data = &mcp3564_chip_infos_tbl[mcp3464] },
+	{ .compatible = "microchip,mcp3561", .data = &mcp3564_chip_infos_tbl[mcp3561] },
+	{ .compatible = "microchip,mcp3562", .data = &mcp3564_chip_infos_tbl[mcp3562] },
+	{ .compatible = "microchip,mcp3564", .data = &mcp3564_chip_infos_tbl[mcp3564] },
+	{ .compatible = "microchip,mcp3461r", .data = &mcp3564_chip_infos_tbl[mcp3461r] },
+	{ .compatible = "microchip,mcp3462r", .data = &mcp3564_chip_infos_tbl[mcp3462r] },
+	{ .compatible = "microchip,mcp3464r", .data = &mcp3564_chip_infos_tbl[mcp3464r] },
+	{ .compatible = "microchip,mcp3561r", .data = &mcp3564_chip_infos_tbl[mcp3561r] },
+	{ .compatible = "microchip,mcp3562r", .data = &mcp3564_chip_infos_tbl[mcp3562r] },
+	{ .compatible = "microchip,mcp3564r", .data = &mcp3564_chip_infos_tbl[mcp3564r] },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, mcp3564_dt_ids);
+
+static const struct spi_device_id mcp3564_id[] = {
+	{ "mcp3461", (kernel_ulong_t)&mcp3564_chip_infos_tbl[mcp3461] },
+	{ "mcp3462", (kernel_ulong_t)&mcp3564_chip_infos_tbl[mcp3462] },
+	{ "mcp3464", (kernel_ulong_t)&mcp3564_chip_infos_tbl[mcp3464] },
+	{ "mcp3561", (kernel_ulong_t)&mcp3564_chip_infos_tbl[mcp3561] },
+	{ "mcp3562", (kernel_ulong_t)&mcp3564_chip_infos_tbl[mcp3562] },
+	{ "mcp3564", (kernel_ulong_t)&mcp3564_chip_infos_tbl[mcp3564] },
+	{ "mcp3461r", (kernel_ulong_t)&mcp3564_chip_infos_tbl[mcp3461r] },
+	{ "mcp3462r", (kernel_ulong_t)&mcp3564_chip_infos_tbl[mcp3462r] },
+	{ "mcp3464r", (kernel_ulong_t)&mcp3564_chip_infos_tbl[mcp3464r] },
+	{ "mcp3561r", (kernel_ulong_t)&mcp3564_chip_infos_tbl[mcp3561r] },
+	{ "mcp3562r", (kernel_ulong_t)&mcp3564_chip_infos_tbl[mcp3562r] },
+	{ "mcp3564r", (kernel_ulong_t)&mcp3564_chip_infos_tbl[mcp3564r] },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, mcp3564_id);
+
+static struct spi_driver mcp3564_driver = {
+	.driver = {
+		.name = "mcp3564",
+		.of_match_table = mcp3564_dt_ids,
+	},
+	.probe = mcp3564_probe,
+	.id_table = mcp3564_id,
+};
+
+module_spi_driver(mcp3564_driver);
+
+MODULE_AUTHOR("Marius Cristea <marius.cristea@microchip.com>");
+MODULE_DESCRIPTION("Microchip MCP346x/MCP346xR and MCP356x/MCP356xR ADCs");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/adc/mcp3911.c b/drivers/iio/adc/mcp3911.c
index 974c5bd923..d864558bc0 100644
--- a/drivers/iio/adc/mcp3911.c
+++ b/drivers/iio/adc/mcp3911.c
@@ -29,11 +29,11 @@
 #define MCP3911_REG_MOD			0x06
 #define MCP3911_REG_PHASE		0x07
 #define MCP3911_REG_GAIN		0x09
-#define MCP3911_GAIN_MASK(ch)		(GENMASK(2, 0) << 3 * ch)
-#define MCP3911_GAIN_VAL(ch, val)      ((val << 3 * ch) & MCP3911_GAIN_MASK(ch))
+#define MCP3911_GAIN_MASK(ch)		(GENMASK(2, 0) << 3 * (ch))
+#define MCP3911_GAIN_VAL(ch, val)      ((val << 3 * (ch)) & MCP3911_GAIN_MASK(ch))
 
 #define MCP3911_REG_STATUSCOM		0x0a
-#define MCP3911_STATUSCOM_DRHIZ         BIT(12)
+#define MCP3911_STATUSCOM_DRHIZ		BIT(12)
 #define MCP3911_STATUSCOM_READ		GENMASK(7, 6)
 #define MCP3911_STATUSCOM_CH1_24WIDTH	BIT(4)
 #define MCP3911_STATUSCOM_CH0_24WIDTH	BIT(3)
@@ -51,8 +51,8 @@
 #define MCP3911_REG_GAINCAL_CH1		0x17
 #define MCP3911_REG_VREFCAL		0x1a
 
-#define MCP3911_CHANNEL(x)		(MCP3911_REG_CHANNEL0 + x * 3)
-#define MCP3911_OFFCAL(x)		(MCP3911_REG_OFFCAL_CH0 + x * 6)
+#define MCP3911_CHANNEL(ch)		(MCP3911_REG_CHANNEL0 + (ch) * 3)
+#define MCP3911_OFFCAL(ch)		(MCP3911_REG_OFFCAL_CH0 + (ch) * 6)
 
 /* Internal voltage reference in mV */
 #define MCP3911_INT_VREF_MV		1200
@@ -61,12 +61,56 @@
 #define MCP3911_REG_WRITE(reg, id)	((((reg) << 1) | ((id) << 6) | (0 << 0)) & 0xff)
 #define MCP3911_REG_MASK		GENMASK(4, 1)
 
-#define MCP3911_NUM_CHANNELS		2
 #define MCP3911_NUM_SCALES		6
 
+/* Registers compatible with MCP3910 */
+#define MCP3910_REG_STATUSCOM		0x0c
+#define MCP3910_STATUSCOM_READ		GENMASK(23, 22)
+#define MCP3910_STATUSCOM_DRHIZ		BIT(20)
+
+#define MCP3910_REG_GAIN		0x0b
+
+#define MCP3910_REG_CONFIG0		0x0d
+#define MCP3910_CONFIG0_EN_OFFCAL	BIT(23)
+#define MCP3910_CONFIG0_OSR		GENMASK(15, 13)
+
+#define MCP3910_REG_CONFIG1		0x0e
+#define MCP3910_CONFIG1_CLKEXT		BIT(6)
+#define MCP3910_CONFIG1_VREFEXT		BIT(7)
+
+#define MCP3910_REG_OFFCAL_CH0		0x0f
+#define MCP3910_OFFCAL(ch)		(MCP3910_REG_OFFCAL_CH0 + (ch) * 6)
+
+/* Maximal number of channels used by the MCP39XX family */
+#define MCP39XX_MAX_NUM_CHANNELS	8
+
 static const int mcp3911_osr_table[] = { 32, 64, 128, 256, 512, 1024, 2048, 4096 };
 static u32 mcp3911_scale_table[MCP3911_NUM_SCALES][2];
 
+enum mcp3911_id {
+	MCP3910,
+	MCP3911,
+	MCP3912,
+	MCP3913,
+	MCP3914,
+	MCP3918,
+	MCP3919,
+};
+
+struct mcp3911;
+struct mcp3911_chip_info {
+	const struct iio_chan_spec *channels;
+	unsigned int num_channels;
+
+	int (*config)(struct mcp3911 *adc);
+	int (*get_osr)(struct mcp3911 *adc, u32 *val);
+	int (*set_osr)(struct mcp3911 *adc, u32 val);
+	int (*enable_offset)(struct mcp3911 *adc, bool enable);
+	int (*get_offset)(struct mcp3911 *adc, int channel, int *val);
+	int (*set_offset)(struct mcp3911 *adc, int channel, int val);
+	int (*set_scale)(struct mcp3911 *adc, int channel, u32 val);
+};
+
 struct mcp3911 {
 	struct spi_device *spi;
 	struct mutex lock;
@@ -74,14 +118,15 @@ struct mcp3911 {
 	struct clk *clki;
 	u32 dev_addr;
 	struct iio_trigger *trig;
-	u32 gain[MCP3911_NUM_CHANNELS];
+	u32 gain[MCP39XX_MAX_NUM_CHANNELS];
+	const struct mcp3911_chip_info *chip;
 	struct {
-		u32 channels[MCP3911_NUM_CHANNELS];
+		u32 channels[MCP39XX_MAX_NUM_CHANNELS];
 		s64 ts __aligned(8);
 	} scan;
 
 	u8 tx_buf __aligned(IIO_DMA_MINALIGN);
-	u8 rx_buf[MCP3911_NUM_CHANNELS * 3];
+	u8 rx_buf[MCP39XX_MAX_NUM_CHANNELS * 3];
 };
 
 static int mcp3911_read(struct mcp3911 *adc, u8 reg, u32 *val, u8 len)
@@ -111,8 +156,7 @@ static int mcp3911_write(struct mcp3911 *adc, u8 reg, u32 val, u8 len)
 	return spi_write(adc->spi, &val, len + 1);
 }
 
-static int mcp3911_update(struct mcp3911 *adc, u8 reg, u32 mask,
-		u32 val, u8 len)
+static int mcp3911_update(struct mcp3911 *adc, u8 reg, u32 mask, u32 val, u8 len)
 {
 	u32 tmp;
 	int ret;
@@ -126,9 +170,115 @@ static int mcp3911_update(struct mcp3911 *adc, u8 reg, u32 mask,
 	return mcp3911_write(adc, reg, val, len);
 }
 
+static int mcp3910_enable_offset(struct mcp3911 *adc, bool enable)
+{
+	unsigned int mask = MCP3910_CONFIG0_EN_OFFCAL;
+	unsigned int value = enable ? mask : 0;
+
+	return mcp3911_update(adc, MCP3910_REG_CONFIG0, mask, value, 3);
+}
+
+static int mcp3910_get_offset(struct mcp3911 *adc, int channel, int *val)
+{
+	return mcp3911_read(adc, MCP3910_OFFCAL(channel), val, 3);
+}
+
+static int mcp3910_set_offset(struct mcp3911 *adc, int channel, int val)
+{
+	int ret;
+
+	ret = mcp3911_write(adc, MCP3910_OFFCAL(channel), val, 3);
+	if (ret)
+		return ret;
+
+	return adc->chip->enable_offset(adc, 1);
+}
+
+static int mcp3911_enable_offset(struct mcp3911 *adc, bool enable)
+{
+	unsigned int mask = MCP3911_STATUSCOM_EN_OFFCAL;
+	unsigned int value = enable ? mask : 0;
+
+	return mcp3911_update(adc, MCP3911_REG_STATUSCOM, mask, value, 2);
+}
+
+static int mcp3911_get_offset(struct mcp3911 *adc, int channel, int *val)
+{
+	return mcp3911_read(adc, MCP3911_OFFCAL(channel), val, 3);
+}
+
+static int mcp3911_set_offset(struct mcp3911 *adc, int channel, int val)
+{
+	int ret;
+
+	ret = mcp3911_write(adc, MCP3911_OFFCAL(channel), val, 3);
+	if (ret)
+		return ret;
+
+	return adc->chip->enable_offset(adc, 1);
+}
+
+static int mcp3910_get_osr(struct mcp3911 *adc, u32 *val)
+{
+	int ret;
+	unsigned int osr;
+
+	ret = mcp3911_read(adc, MCP3910_REG_CONFIG0, val, 3);
+	if (ret)
+		return ret;
+
+	osr = FIELD_GET(MCP3910_CONFIG0_OSR, *val);
+	*val = 32 << osr;
+	return 0;
+}
+
+static int mcp3910_set_osr(struct mcp3911 *adc, u32 val)
+{
+	unsigned int osr = FIELD_PREP(MCP3910_CONFIG0_OSR, val);
+	unsigned int mask = MCP3910_CONFIG0_OSR;
+
+	return mcp3911_update(adc, MCP3910_REG_CONFIG0, mask, osr, 3);
+}
+
+static int mcp3911_set_osr(struct mcp3911 *adc, u32 val)
+{
+	unsigned int osr = FIELD_PREP(MCP3911_CONFIG_OSR, val);
+	unsigned int mask = MCP3911_CONFIG_OSR;
+
+	return mcp3911_update(adc, MCP3911_REG_CONFIG, mask, osr, 2);
+}
+
+static int mcp3911_get_osr(struct mcp3911 *adc, u32 *val)
+{
+	int ret;
+	unsigned int osr;
+
+	ret = mcp3911_read(adc, MCP3911_REG_CONFIG, val, 2);
+	if (ret)
+		return ret;
+
+	osr = FIELD_GET(MCP3911_CONFIG_OSR, *val);
+	*val = 32 << osr;
+	return ret;
+}
+
+static int mcp3910_set_scale(struct mcp3911 *adc, int channel, u32 val)
+{
+	return mcp3911_update(adc, MCP3910_REG_GAIN,
+			      MCP3911_GAIN_MASK(channel),
+			      MCP3911_GAIN_VAL(channel, val), 3);
+}
+
+static int mcp3911_set_scale(struct mcp3911 *adc, int channel, u32 val)
+{
+	return mcp3911_update(adc, MCP3911_REG_GAIN,
+			      MCP3911_GAIN_MASK(channel),
+			      MCP3911_GAIN_VAL(channel, val), 1);
+}
+
 static int mcp3911_write_raw_get_fmt(struct iio_dev *indio_dev,
-					struct iio_chan_spec const *chan,
-					long mask)
+				     struct iio_chan_spec const *chan,
+				     long mask)
 {
 	switch (mask) {
 	case IIO_CHAN_INFO_SCALE:
@@ -141,9 +291,9 @@ static int mcp3911_write_raw_get_fmt(struct iio_dev *indio_dev,
 }
 
 static int mcp3911_read_avail(struct iio_dev *indio_dev,
-			     struct iio_chan_spec const *chan,
-			     const int **vals, int *type, int *length,
-			     long info)
+			      struct iio_chan_spec const *chan,
+			      const int **vals, int *type, int *length,
+			      long info)
 {
 	switch (info) {
 	case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
@@ -182,20 +332,18 @@ static int mcp3911_read_raw(struct iio_dev *indio_dev,
 		break;
 
 	case IIO_CHAN_INFO_OFFSET:
-		ret = mcp3911_read(adc,
-				   MCP3911_OFFCAL(channel->channel), val, 3);
+
+		ret = adc->chip->get_offset(adc, channel->channel, val);
 		if (ret)
 			goto out;
 
 		ret = IIO_VAL_INT;
 		break;
 	case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
-		ret = mcp3911_read(adc, MCP3911_REG_CONFIG, val, 2);
+		ret = adc->chip->get_osr(adc, val);
 		if (ret)
 			goto out;
 
-		*val = FIELD_GET(MCP3911_CONFIG_OSR, *val);
-		*val = 32 << *val;
 		ret = IIO_VAL_INT;
 		break;
 
@@ -212,8 +360,8 @@ out:
 }
 
 static int mcp3911_write_raw(struct iio_dev *indio_dev,
-			    struct iio_chan_spec const *channel, int val,
-			    int val2, long mask)
+			     struct iio_chan_spec const *channel, int val,
+			     int val2, long mask)
 {
 	struct mcp3911 *adc = iio_priv(indio_dev);
 	int ret = -EINVAL;
@@ -223,12 +371,10 @@ static int mcp3911_write_raw(struct iio_dev *indio_dev,
 	case IIO_CHAN_INFO_SCALE:
 		for (int i = 0; i < MCP3911_NUM_SCALES; i++) {
 			if (val == mcp3911_scale_table[i][0] &&
-				val2 == mcp3911_scale_table[i][1]) {
+			    val2 == mcp3911_scale_table[i][1]) {
 
 				adc->gain[channel->channel] = BIT(i);
-				ret = mcp3911_update(adc, MCP3911_REG_GAIN,
-						MCP3911_GAIN_MASK(channel->channel),
-						MCP3911_GAIN_VAL(channel->channel, i), 1);
+				ret = adc->chip->set_scale(adc, channel->channel, i);
 			}
 		}
 		break;
@@ -238,24 +384,13 @@ static int mcp3911_write_raw(struct iio_dev *indio_dev,
 			goto out;
 		}
 
-		/* Write offset */
-		ret = mcp3911_write(adc, MCP3911_OFFCAL(channel->channel), val,
-				    3);
-		if (ret)
-			goto out;
-
-		/* Enable offset*/
-		ret = mcp3911_update(adc, MCP3911_REG_STATUSCOM,
-				MCP3911_STATUSCOM_EN_OFFCAL,
-				MCP3911_STATUSCOM_EN_OFFCAL, 2);
+		ret = adc->chip->set_offset(adc, channel->channel, val);
 		break;
 
 	case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
 		for (int i = 0; i < ARRAY_SIZE(mcp3911_osr_table); i++) {
 			if (val == mcp3911_osr_table[i]) {
-				val = FIELD_PREP(MCP3911_CONFIG_OSR, i);
-				ret = mcp3911_update(adc, MCP3911_REG_CONFIG, MCP3911_CONFIG_OSR,
-						val, 2);
+				ret = adc->chip->set_osr(adc, i);
 				break;
 			}
 		}
@@ -269,6 +404,7 @@ out:
 
 static int mcp3911_calc_scale_table(struct mcp3911 *adc)
 {
+	struct device *dev = &adc->spi->dev;
 	u32 ref = MCP3911_INT_VREF_MV;
 	u32 div;
 	int ret;
@@ -277,10 +413,7 @@ static int mcp3911_calc_scale_table(struct mcp3911 *adc)
 	if (adc->vref) {
 		ret = regulator_get_voltage(adc->vref);
 		if (ret < 0) {
-			dev_err(&adc->spi->dev,
-				"failed to get vref voltage: %d\n",
-			       ret);
-			return ret;
+			return dev_err_probe(dev, ret, "failed to get vref voltage\n");
 		}
 
 		ref = ret / 1000;
@@ -326,24 +459,73 @@ static int mcp3911_calc_scale_table(struct mcp3911 *adc)
 		},						\
 }
 
+static const struct iio_chan_spec mcp3910_channels[] = {
+	MCP3911_CHAN(0),
+	MCP3911_CHAN(1),
+	IIO_CHAN_SOFT_TIMESTAMP(2),
+};
+
 static const struct iio_chan_spec mcp3911_channels[] = {
 	MCP3911_CHAN(0),
 	MCP3911_CHAN(1),
 	IIO_CHAN_SOFT_TIMESTAMP(2),
 };
 
+static const struct iio_chan_spec mcp3912_channels[] = {
+	MCP3911_CHAN(0),
+	MCP3911_CHAN(1),
+	MCP3911_CHAN(2),
+	MCP3911_CHAN(3),
+	IIO_CHAN_SOFT_TIMESTAMP(4),
+};
+
+static const struct iio_chan_spec mcp3913_channels[] = {
+	MCP3911_CHAN(0),
+	MCP3911_CHAN(1),
+	MCP3911_CHAN(2),
+	MCP3911_CHAN(3),
+	MCP3911_CHAN(4),
+	MCP3911_CHAN(5),
+	IIO_CHAN_SOFT_TIMESTAMP(6),
+};
+
+static const struct iio_chan_spec mcp3914_channels[] = {
+	MCP3911_CHAN(0),
+	MCP3911_CHAN(1),
+	MCP3911_CHAN(2),
+	MCP3911_CHAN(3),
+	MCP3911_CHAN(4),
+	MCP3911_CHAN(5),
+	MCP3911_CHAN(6),
+	MCP3911_CHAN(7),
+	IIO_CHAN_SOFT_TIMESTAMP(8),
+};
+
+static const struct iio_chan_spec mcp3918_channels[] = {
+	MCP3911_CHAN(0),
+	IIO_CHAN_SOFT_TIMESTAMP(1),
+};
+
+static const struct iio_chan_spec mcp3919_channels[] = {
+	MCP3911_CHAN(0),
+	MCP3911_CHAN(1),
+	MCP3911_CHAN(2),
+	IIO_CHAN_SOFT_TIMESTAMP(3),
+};
+
 static irqreturn_t mcp3911_trigger_handler(int irq, void *p)
 {
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct mcp3911 *adc = iio_priv(indio_dev);
+	struct device *dev = &adc->spi->dev;
 	struct spi_transfer xfer[] = {
 		{
 			.tx_buf = &adc->tx_buf,
 			.len = 1,
 		}, {
 			.rx_buf = adc->rx_buf,
-			.len = sizeof(adc->rx_buf),
+			.len = (adc->chip->num_channels - 1) * 3,
 		},
 	};
 	int scan_index;
@@ -354,8 +536,7 @@ static irqreturn_t mcp3911_trigger_handler(int irq, void *p)
 	adc->tx_buf = MCP3911_REG_READ(MCP3911_CHANNEL(0), adc->dev_addr);
 	ret = spi_sync_transfer(adc->spi, xfer, ARRAY_SIZE(xfer));
 	if (ret < 0) {
-		dev_warn(&adc->spi->dev,
-				"failed to get conversion data\n");
+		dev_warn(dev, "failed to get conversion data\n");
 		goto out;
 	}
 
@@ -387,43 +568,25 @@ static int mcp3911_config(struct mcp3911 *adc)
 	u32 regval;
 	int ret;
 
-	ret = device_property_read_u32(dev, "microchip,device-addr", &adc->dev_addr);
-
-	/*
-	 * Fallback to "device-addr" due to historical mismatch between
-	 * dt-bindings and implementation
-	 */
-	if (ret)
-		device_property_read_u32(dev, "device-addr", &adc->dev_addr);
-	if (adc->dev_addr > 3) {
-		dev_err(&adc->spi->dev,
-			"invalid device address (%i). Must be in range 0-3.\n",
-			adc->dev_addr);
-		return -EINVAL;
-	}
-	dev_dbg(&adc->spi->dev, "use device address %i\n", adc->dev_addr);
-
 	ret = mcp3911_read(adc, MCP3911_REG_CONFIG, &regval, 2);
 	if (ret)
 		return ret;
 
 	regval &= ~MCP3911_CONFIG_VREFEXT;
 	if (adc->vref) {
-		dev_dbg(&adc->spi->dev, "use external voltage reference\n");
+		dev_dbg(dev, "use external voltage reference\n");
 		regval |= FIELD_PREP(MCP3911_CONFIG_VREFEXT, 1);
 	} else {
-		dev_dbg(&adc->spi->dev,
-			"use internal voltage reference (1.2V)\n");
+		dev_dbg(dev, "use internal voltage reference (1.2V)\n");
 		regval |= FIELD_PREP(MCP3911_CONFIG_VREFEXT, 0);
 	}
 
 	regval &= ~MCP3911_CONFIG_CLKEXT;
 	if (adc->clki) {
-		dev_dbg(&adc->spi->dev, "use external clock as clocksource\n");
+		dev_dbg(dev, "use external clock as clocksource\n");
 		regval |= FIELD_PREP(MCP3911_CONFIG_CLKEXT, 1);
 	} else {
-		dev_dbg(&adc->spi->dev,
-			"use crystal oscillator as clocksource\n");
+		dev_dbg(dev, "use crystal oscillator as clocksource\n");
 		regval |= FIELD_PREP(MCP3911_CONFIG_CLKEXT, 0);
 	}
 
@@ -439,7 +602,97 @@ static int mcp3911_config(struct mcp3911 *adc)
 	regval &= ~MCP3911_STATUSCOM_READ;
 	regval |= FIELD_PREP(MCP3911_STATUSCOM_READ, 0x02);
 
-	return  mcp3911_write(adc, MCP3911_REG_STATUSCOM, regval, 2);
+	regval &= ~MCP3911_STATUSCOM_DRHIZ;
+	if (device_property_read_bool(dev, "microchip,data-ready-hiz"))
+		regval |= FIELD_PREP(MCP3911_STATUSCOM_DRHIZ, 0);
+	else
+		regval |= FIELD_PREP(MCP3911_STATUSCOM_DRHIZ, 1);
+
+	/* Disable offset to ignore any old values in offset register */
+	regval &= ~MCP3911_STATUSCOM_EN_OFFCAL;
+
+	ret =  mcp3911_write(adc, MCP3911_REG_STATUSCOM, regval, 2);
+	if (ret)
+		return ret;
+
+	/* Set gain to 1 for all channels */
+	ret = mcp3911_read(adc, MCP3911_REG_GAIN, &regval, 1);
+	if (ret)
+		return ret;
+
+	for (int i = 0; i < adc->chip->num_channels - 1; i++) {
+		adc->gain[i] = 1;
+		regval &= ~MCP3911_GAIN_MASK(i);
+	}
+
+	return mcp3911_write(adc, MCP3911_REG_GAIN, regval, 1);
+}
+
+static int mcp3910_config(struct mcp3911 *adc)
+{
+	struct device *dev = &adc->spi->dev;
+	u32 regval;
+	int ret;
+
+	ret = mcp3911_read(adc, MCP3910_REG_CONFIG1, &regval, 3);
+	if (ret)
+		return ret;
+
+	regval &= ~MCP3910_CONFIG1_VREFEXT;
+	if (adc->vref) {
+		dev_dbg(dev, "use external voltage reference\n");
+		regval |= FIELD_PREP(MCP3910_CONFIG1_VREFEXT, 1);
+	} else {
+		dev_dbg(dev, "use internal voltage reference (1.2V)\n");
+		regval |= FIELD_PREP(MCP3910_CONFIG1_VREFEXT, 0);
+	}
+
+	regval &= ~MCP3910_CONFIG1_CLKEXT;
+	if (adc->clki) {
+		dev_dbg(dev, "use external clock as clocksource\n");
+		regval |= FIELD_PREP(MCP3910_CONFIG1_CLKEXT, 1);
+	} else {
+		dev_dbg(dev, "use crystal oscillator as clocksource\n");
+		regval |= FIELD_PREP(MCP3910_CONFIG1_CLKEXT, 0);
+	}
+
+	ret = mcp3911_write(adc, MCP3910_REG_CONFIG1, regval, 3);
+	if (ret)
+		return ret;
+
+	ret = mcp3911_read(adc, MCP3910_REG_STATUSCOM, &regval, 3);
+	if (ret)
+		return ret;
+
+	/* Address counter incremented, cycle through register types */
+	regval &= ~MCP3910_STATUSCOM_READ;
+	regval |= FIELD_PREP(MCP3910_STATUSCOM_READ, 0x02);
+
+	regval &= ~MCP3910_STATUSCOM_DRHIZ;
+	if (device_property_read_bool(dev, "microchip,data-ready-hiz"))
+		regval |= FIELD_PREP(MCP3910_STATUSCOM_DRHIZ, 0);
+	else
+		regval |= FIELD_PREP(MCP3910_STATUSCOM_DRHIZ, 1);
+
+	ret = mcp3911_write(adc, MCP3910_REG_STATUSCOM, regval, 3);
+	if (ret)
+		return ret;
+
+	/* Set gain to 1 for all channels */
+	ret = mcp3911_read(adc, MCP3910_REG_GAIN, &regval, 3);
+	if (ret)
+		return ret;
+
+	for (int i = 0; i < adc->chip->num_channels - 1; i++) {
+		adc->gain[i] = 1;
+		regval &= ~MCP3911_GAIN_MASK(i);
+	}
+	ret = mcp3911_write(adc, MCP3910_REG_GAIN, regval, 3);
+	if (ret)
+		return ret;
+
+	/* Disable offset to ignore any old values in offset register */
+	return adc->chip->enable_offset(adc, 0);
 }
 
 static void mcp3911_cleanup_regulator(void *vref)
@@ -466,26 +719,25 @@ static const struct iio_trigger_ops mcp3911_trigger_ops = {
 
 static int mcp3911_probe(struct spi_device *spi)
 {
+	struct device *dev = &spi->dev;
 	struct iio_dev *indio_dev;
 	struct mcp3911 *adc;
 	int ret;
 
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adc));
+	indio_dev = devm_iio_device_alloc(dev, sizeof(*adc));
 	if (!indio_dev)
 		return -ENOMEM;
 
 	adc = iio_priv(indio_dev);
 	adc->spi = spi;
+	adc->chip = spi_get_device_match_data(spi);
 
-	adc->vref = devm_regulator_get_optional(&adc->spi->dev, "vref");
+	adc->vref = devm_regulator_get_optional(dev, "vref");
 	if (IS_ERR(adc->vref)) {
 		if (PTR_ERR(adc->vref) == -ENODEV) {
 			adc->vref = NULL;
 		} else {
-			dev_err(&adc->spi->dev,
-				"failed to get regulator (%ld)\n",
-				PTR_ERR(adc->vref));
-			return PTR_ERR(adc->vref);
+			return dev_err_probe(dev, PTR_ERR(adc->vref), "failed to get regulator\n");
 		}
 
 	} else {
@@ -493,34 +745,35 @@ static int mcp3911_probe(struct spi_device *spi)
 		if (ret)
 			return ret;
 
-		ret = devm_add_action_or_reset(&spi->dev,
-				mcp3911_cleanup_regulator, adc->vref);
+		ret = devm_add_action_or_reset(dev, mcp3911_cleanup_regulator, adc->vref);
 		if (ret)
 			return ret;
 	}
 
-	adc->clki = devm_clk_get_enabled(&adc->spi->dev, NULL);
+	adc->clki = devm_clk_get_enabled(dev, NULL);
 	if (IS_ERR(adc->clki)) {
 		if (PTR_ERR(adc->clki) == -ENOENT) {
 			adc->clki = NULL;
 		} else {
-			dev_err(&adc->spi->dev,
-				"failed to get adc clk (%ld)\n",
-				PTR_ERR(adc->clki));
-			return PTR_ERR(adc->clki);
+			return dev_err_probe(dev, PTR_ERR(adc->clki), "failed to get adc clk\n");
 		}
 	}
 
-	ret = mcp3911_config(adc);
+	/*
+	 * Fallback to "device-addr" due to historical mismatch between
+	 * dt-bindings and implementation.
+	 */
+	ret = device_property_read_u32(dev, "microchip,device-addr", &adc->dev_addr);
 	if (ret)
-		return ret;
+		device_property_read_u32(dev, "device-addr", &adc->dev_addr);
+	if (adc->dev_addr > 3) {
+		return dev_err_probe(dev, -EINVAL,
+				     "invalid device address (%i). Must be in range 0-3.\n",
+				     adc->dev_addr);
+	}
+	dev_dbg(dev, "use device address %i\n", adc->dev_addr);
 
-	if (device_property_read_bool(&adc->spi->dev, "microchip,data-ready-hiz"))
-		ret = mcp3911_update(adc, MCP3911_REG_STATUSCOM, MCP3911_STATUSCOM_DRHIZ,
-				0, 2);
-	else
-		ret = mcp3911_update(adc, MCP3911_REG_STATUSCOM, MCP3911_STATUSCOM_DRHIZ,
-				MCP3911_STATUSCOM_DRHIZ, 2);
+	ret = adc->chip->config(adc);
 	if (ret)
 		return ret;
 
@@ -528,12 +781,12 @@ static int mcp3911_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-       /* Set gain to 1 for all channels */
-	for (int i = 0; i < MCP3911_NUM_CHANNELS; i++) {
+	/* Set gain to 1 for all channels */
+	for (int i = 0; i < adc->chip->num_channels - 1; i++) {
 		adc->gain[i] = 1;
 		ret = mcp3911_update(adc, MCP3911_REG_GAIN,
-				MCP3911_GAIN_MASK(i),
-				MCP3911_GAIN_VAL(i, 0), 1);
+				     MCP3911_GAIN_MASK(i),
+				     MCP3911_GAIN_VAL(i, 0), 1);
 		if (ret)
 			return ret;
 	}
@@ -543,21 +796,20 @@ static int mcp3911_probe(struct spi_device *spi)
 	indio_dev->info = &mcp3911_info;
 	spi_set_drvdata(spi, indio_dev);
 
-	indio_dev->channels = mcp3911_channels;
-	indio_dev->num_channels = ARRAY_SIZE(mcp3911_channels);
+	indio_dev->channels = adc->chip->channels;
+	indio_dev->num_channels = adc->chip->num_channels;
 
 	mutex_init(&adc->lock);
 
 	if (spi->irq > 0) {
-		adc->trig = devm_iio_trigger_alloc(&spi->dev, "%s-dev%d",
-				indio_dev->name,
-				iio_device_id(indio_dev));
+		adc->trig = devm_iio_trigger_alloc(dev, "%s-dev%d", indio_dev->name,
+						   iio_device_id(indio_dev));
 		if (!adc->trig)
 			return -ENOMEM;
 
 		adc->trig->ops = &mcp3911_trigger_ops;
 		iio_trigger_set_drvdata(adc->trig, adc);
-		ret = devm_iio_trigger_register(&spi->dev, adc->trig);
+		ret = devm_iio_trigger_register(dev, adc->trig);
 		if (ret)
 			return ret;
 
@@ -566,30 +818,120 @@ static int mcp3911_probe(struct spi_device *spi)
 		 * Some platforms might not allow the option to power it down so
 		 * don't enable the interrupt to avoid extra load on the system.
 		 */
-		ret = devm_request_irq(&spi->dev, spi->irq,
-				&iio_trigger_generic_data_rdy_poll, IRQF_NO_AUTOEN | IRQF_ONESHOT,
-				indio_dev->name, adc->trig);
+		ret = devm_request_irq(dev, spi->irq, &iio_trigger_generic_data_rdy_poll,
+				       IRQF_NO_AUTOEN | IRQF_ONESHOT,
+				       indio_dev->name, adc->trig);
 		if (ret)
 			return ret;
 	}
 
-	ret = devm_iio_triggered_buffer_setup(&spi->dev, indio_dev,
-			NULL,
-			mcp3911_trigger_handler, NULL);
+	ret = devm_iio_triggered_buffer_setup(dev, indio_dev, NULL,
+					      mcp3911_trigger_handler, NULL);
 	if (ret)
 		return ret;
 
-	return devm_iio_device_register(&adc->spi->dev, indio_dev);
+	return devm_iio_device_register(dev, indio_dev);
 }
 
+static const struct mcp3911_chip_info mcp3911_chip_info[] = {
+	[MCP3910] = {
+		.channels = mcp3910_channels,
+		.num_channels = ARRAY_SIZE(mcp3910_channels),
+		.config = mcp3910_config,
+		.get_osr = mcp3910_get_osr,
+		.set_osr = mcp3910_set_osr,
+		.enable_offset = mcp3910_enable_offset,
+		.get_offset = mcp3910_get_offset,
+		.set_offset = mcp3910_set_offset,
+		.set_scale = mcp3910_set_scale,
+	},
+	[MCP3911] = {
+		.channels = mcp3911_channels,
+		.num_channels = ARRAY_SIZE(mcp3911_channels),
+		.config = mcp3911_config,
+		.get_osr = mcp3911_get_osr,
+		.set_osr = mcp3911_set_osr,
+		.enable_offset = mcp3911_enable_offset,
+		.get_offset = mcp3911_get_offset,
+		.set_offset = mcp3911_set_offset,
+		.set_scale = mcp3911_set_scale,
+	},
+	[MCP3912] = {
+		.channels = mcp3912_channels,
+		.num_channels = ARRAY_SIZE(mcp3912_channels),
+		.config = mcp3910_config,
+		.get_osr = mcp3910_get_osr,
+		.set_osr = mcp3910_set_osr,
+		.enable_offset = mcp3910_enable_offset,
+		.get_offset = mcp3910_get_offset,
+		.set_offset = mcp3910_set_offset,
+		.set_scale = mcp3910_set_scale,
+	},
+	[MCP3913] = {
+		.channels = mcp3913_channels,
+		.num_channels = ARRAY_SIZE(mcp3913_channels),
+		.config = mcp3910_config,
+		.get_osr = mcp3910_get_osr,
+		.set_osr = mcp3910_set_osr,
+		.enable_offset = mcp3910_enable_offset,
+		.get_offset = mcp3910_get_offset,
+		.set_offset = mcp3910_set_offset,
+		.set_scale = mcp3910_set_scale,
+	},
+	[MCP3914] = {
+		.channels = mcp3914_channels,
+		.num_channels = ARRAY_SIZE(mcp3914_channels),
+		.config = mcp3910_config,
+		.get_osr = mcp3910_get_osr,
+		.set_osr = mcp3910_set_osr,
+		.enable_offset = mcp3910_enable_offset,
+		.get_offset = mcp3910_get_offset,
+		.set_offset = mcp3910_set_offset,
+		.set_scale = mcp3910_set_scale,
+	},
+	[MCP3918] = {
+		.channels = mcp3918_channels,
+		.num_channels = ARRAY_SIZE(mcp3918_channels),
+		.config = mcp3910_config,
+		.get_osr = mcp3910_get_osr,
+		.set_osr = mcp3910_set_osr,
+		.enable_offset = mcp3910_enable_offset,
+		.get_offset = mcp3910_get_offset,
+		.set_offset = mcp3910_set_offset,
+		.set_scale = mcp3910_set_scale,
+	},
+	[MCP3919] = {
+		.channels = mcp3919_channels,
+		.num_channels = ARRAY_SIZE(mcp3919_channels),
+		.config = mcp3910_config,
+		.get_osr = mcp3910_get_osr,
+		.set_osr = mcp3910_set_osr,
+		.enable_offset = mcp3910_enable_offset,
+		.get_offset = mcp3910_get_offset,
+		.set_offset = mcp3910_set_offset,
+		.set_scale = mcp3910_set_scale,
+	},
+};
 static const struct of_device_id mcp3911_dt_ids[] = {
-	{ .compatible = "microchip,mcp3911" },
+	{ .compatible = "microchip,mcp3910", .data = &mcp3911_chip_info[MCP3910] },
+	{ .compatible = "microchip,mcp3911", .data = &mcp3911_chip_info[MCP3911] },
+	{ .compatible = "microchip,mcp3912", .data = &mcp3911_chip_info[MCP3912] },
+	{ .compatible = "microchip,mcp3913", .data = &mcp3911_chip_info[MCP3913] },
+	{ .compatible = "microchip,mcp3914", .data = &mcp3911_chip_info[MCP3914] },
+	{ .compatible = "microchip,mcp3918", .data = &mcp3911_chip_info[MCP3918] },
+	{ .compatible = "microchip,mcp3919", .data = &mcp3911_chip_info[MCP3919] },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, mcp3911_dt_ids);
 
 static const struct spi_device_id mcp3911_id[] = {
-	{ "mcp3911", 0 },
+	{ "mcp3910", (kernel_ulong_t)&mcp3911_chip_info[MCP3910] },
+	{ "mcp3911", (kernel_ulong_t)&mcp3911_chip_info[MCP3911] },
+	{ "mcp3912", (kernel_ulong_t)&mcp3911_chip_info[MCP3912] },
+	{ "mcp3913", (kernel_ulong_t)&mcp3911_chip_info[MCP3913] },
+	{ "mcp3914", (kernel_ulong_t)&mcp3911_chip_info[MCP3914] },
+	{ "mcp3918", (kernel_ulong_t)&mcp3911_chip_info[MCP3918] },
+	{ "mcp3919", (kernel_ulong_t)&mcp3911_chip_info[MCP3919] },
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, mcp3911_id);
diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c
index 57cfabe80c..13b473d8c6 100644
--- a/drivers/iio/adc/meson_saradc.c
+++ b/drivers/iio/adc/meson_saradc.c
@@ -1045,8 +1045,10 @@ static int meson_sar_adc_hw_enable(struct iio_dev *indio_dev)
 	u32 regval;
 
 	ret = meson_sar_adc_lock(indio_dev);
-	if (ret)
+	if (ret) {
+		dev_err(dev, "failed to lock adc\n");
 		goto err_lock;
+	}
 
 	ret = regulator_enable(priv->vref);
 	if (ret < 0) {
@@ -1368,15 +1370,15 @@ static int meson_sar_adc_probe(struct platform_device *pdev)
 
 	priv->regmap = devm_regmap_init_mmio(dev, base, priv->param->regmap_config);
 	if (IS_ERR(priv->regmap))
-		return PTR_ERR(priv->regmap);
+		return dev_err_probe(dev, PTR_ERR(priv->regmap), "failed to init regmap\n");
 
 	irq = irq_of_parse_and_map(dev->of_node, 0);
 	if (!irq)
-		return -EINVAL;
+		return dev_err_probe(dev, -EINVAL, "failed to get irq\n");
 
 	ret = devm_request_irq(dev, irq, meson_sar_adc_irq, IRQF_SHARED, dev_name(dev), indio_dev);
 	if (ret)
-		return ret;
+		return dev_err_probe(dev, ret, "failed to request irq\n");
 
 	priv->clkin = devm_clk_get(dev, "clkin");
 	if (IS_ERR(priv->clkin))
@@ -1398,7 +1400,7 @@ static int meson_sar_adc_probe(struct platform_device *pdev)
 	if (!priv->adc_clk) {
 		ret = meson_sar_adc_clk_init(indio_dev, base);
 		if (ret)
-			return ret;
+			return dev_err_probe(dev, ret, "failed to init internal clk\n");
 	}
 
 	priv->vref = devm_regulator_get(dev, "vref");
@@ -1440,8 +1442,10 @@ static int meson_sar_adc_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, indio_dev);
 
 	ret = iio_device_register(indio_dev);
-	if (ret)
+	if (ret) {
+		dev_err_probe(dev, ret, "failed to register iio device\n");
 		goto err_hw;
+	}
 
 	return 0;
 
@@ -1451,15 +1455,13 @@ err:
 	return ret;
 }
 
-static int meson_sar_adc_remove(struct platform_device *pdev)
+static void meson_sar_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 
 	iio_device_unregister(indio_dev);
 
 	meson_sar_adc_hw_disable(indio_dev);
-
-	return 0;
 }
 
 static int meson_sar_adc_suspend(struct device *dev)
@@ -1494,7 +1496,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(meson_sar_adc_pm_ops,
 
 static struct platform_driver meson_sar_adc_driver = {
 	.probe		= meson_sar_adc_probe,
-	.remove		= meson_sar_adc_remove,
+	.remove_new	= meson_sar_adc_remove,
 	.driver		= {
 		.name	= "meson-saradc",
 		.of_match_table = meson_sar_adc_of_match,
diff --git a/drivers/iio/adc/mp2629_adc.c b/drivers/iio/adc/mp2629_adc.c
index 88e947f300..7c66c2cd5b 100644
--- a/drivers/iio/adc/mp2629_adc.c
+++ b/drivers/iio/adc/mp2629_adc.c
@@ -171,7 +171,7 @@ fail_disable:
 	return ret;
 }
 
-static int mp2629_adc_remove(struct platform_device *pdev)
+static void mp2629_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct mp2629_adc *info = iio_priv(indio_dev);
@@ -184,8 +184,6 @@ static int mp2629_adc_remove(struct platform_device *pdev)
 					 MP2629_ADC_CONTINUOUS, 0);
 	regmap_update_bits(info->regmap, MP2629_REG_ADC_CTRL,
 					 MP2629_ADC_START, 0);
-
-	return 0;
 }
 
 static const struct of_device_id mp2629_adc_of_match[] = {
@@ -200,7 +198,7 @@ static struct platform_driver mp2629_adc_driver = {
 		.of_match_table = mp2629_adc_of_match,
 	},
 	.probe		= mp2629_adc_probe,
-	.remove		= mp2629_adc_remove,
+	.remove_new	= mp2629_adc_remove,
 };
 module_platform_driver(mp2629_adc_driver);
 
diff --git a/drivers/iio/adc/mt6577_auxadc.c b/drivers/iio/adc/mt6577_auxadc.c
index 0e134777bd..3343b54e8e 100644
--- a/drivers/iio/adc/mt6577_auxadc.c
+++ b/drivers/iio/adc/mt6577_auxadc.c
@@ -246,6 +246,14 @@ static int mt6577_auxadc_suspend(struct device *dev)
 	return 0;
 }
 
+static void mt6577_power_off(void *data)
+{
+	struct mt6577_auxadc_device *adc_dev = data;
+
+	mt6577_auxadc_mod_reg(adc_dev->reg_base + MT6577_AUXADC_MISC,
+			      0, MT6577_AUXADC_PDN_EN);
+}
+
 static int mt6577_auxadc_probe(struct platform_device *pdev)
 {
 	struct mt6577_auxadc_device *adc_dev;
@@ -265,29 +273,18 @@ static int mt6577_auxadc_probe(struct platform_device *pdev)
 	indio_dev->num_channels = ARRAY_SIZE(mt6577_auxadc_iio_channels);
 
 	adc_dev->reg_base = devm_platform_ioremap_resource(pdev, 0);
-	if (IS_ERR(adc_dev->reg_base)) {
-		dev_err(&pdev->dev, "failed to get auxadc base address\n");
-		return PTR_ERR(adc_dev->reg_base);
-	}
-
-	adc_dev->adc_clk = devm_clk_get(&pdev->dev, "main");
-	if (IS_ERR(adc_dev->adc_clk)) {
-		dev_err(&pdev->dev, "failed to get auxadc clock\n");
-		return PTR_ERR(adc_dev->adc_clk);
-	}
+	if (IS_ERR(adc_dev->reg_base))
+		return dev_err_probe(&pdev->dev, PTR_ERR(adc_dev->reg_base),
+				     "failed to get auxadc base address\n");
 
-	ret = clk_prepare_enable(adc_dev->adc_clk);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to enable auxadc clock\n");
-		return ret;
-	}
+	adc_dev->adc_clk = devm_clk_get_enabled(&pdev->dev, "main");
+	if (IS_ERR(adc_dev->adc_clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(adc_dev->adc_clk),
+				     "failed to enable auxadc clock\n");
 
 	adc_clk_rate = clk_get_rate(adc_dev->adc_clk);
-	if (!adc_clk_rate) {
-		ret = -EINVAL;
-		dev_err(&pdev->dev, "null clock rate\n");
-		goto err_disable_clk;
-	}
+	if (!adc_clk_rate)
+		return dev_err_probe(&pdev->dev, -EINVAL, "null clock rate\n");
 
 	adc_dev->dev_comp = device_get_match_data(&pdev->dev);
 
@@ -296,36 +293,16 @@ static int mt6577_auxadc_probe(struct platform_device *pdev)
 	mt6577_auxadc_mod_reg(adc_dev->reg_base + MT6577_AUXADC_MISC,
 			      MT6577_AUXADC_PDN_EN, 0);
 	mdelay(MT6577_AUXADC_POWER_READY_MS);
-
 	platform_set_drvdata(pdev, indio_dev);
 
-	ret = iio_device_register(indio_dev);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "failed to register iio device\n");
-		goto err_power_off;
-	}
-
-	return 0;
-
-err_power_off:
-	mt6577_auxadc_mod_reg(adc_dev->reg_base + MT6577_AUXADC_MISC,
-			      0, MT6577_AUXADC_PDN_EN);
-err_disable_clk:
-	clk_disable_unprepare(adc_dev->adc_clk);
-	return ret;
-}
-
-static int mt6577_auxadc_remove(struct platform_device *pdev)
-{
-	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
-	struct mt6577_auxadc_device *adc_dev = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
+	ret = devm_add_action_or_reset(&pdev->dev, mt6577_power_off, adc_dev);
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret,
+				     "Failed to add action to managed power off\n");
 
-	mt6577_auxadc_mod_reg(adc_dev->reg_base + MT6577_AUXADC_MISC,
-			      0, MT6577_AUXADC_PDN_EN);
-
-	clk_disable_unprepare(adc_dev->adc_clk);
+	ret = devm_iio_device_register(&pdev->dev, indio_dev);
+	if (ret < 0)
+		return dev_err_probe(&pdev->dev, ret, "failed to register iio device\n");
 
 	return 0;
 }
@@ -352,7 +329,6 @@ static struct platform_driver mt6577_auxadc_driver = {
 		.pm = pm_sleep_ptr(&mt6577_auxadc_pm_ops),
 	},
 	.probe	= mt6577_auxadc_probe,
-	.remove	= mt6577_auxadc_remove,
 };
 module_platform_driver(mt6577_auxadc_driver);
 
diff --git a/drivers/iio/adc/mxs-lradc-adc.c b/drivers/iio/adc/mxs-lradc-adc.c
index a50f39143d..2e60c10ee4 100644
--- a/drivers/iio/adc/mxs-lradc-adc.c
+++ b/drivers/iio/adc/mxs-lradc-adc.c
@@ -807,7 +807,7 @@ err_trig:
 	return ret;
 }
 
-static int mxs_lradc_adc_remove(struct platform_device *pdev)
+static void mxs_lradc_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *iio = platform_get_drvdata(pdev);
 	struct mxs_lradc_adc *adc = iio_priv(iio);
@@ -816,8 +816,6 @@ static int mxs_lradc_adc_remove(struct platform_device *pdev)
 	mxs_lradc_adc_hw_stop(adc);
 	iio_triggered_buffer_cleanup(iio);
 	mxs_lradc_adc_trigger_remove(iio);
-
-	return 0;
 }
 
 static struct platform_driver mxs_lradc_adc_driver = {
@@ -825,7 +823,7 @@ static struct platform_driver mxs_lradc_adc_driver = {
 		.name	= "mxs-lradc-adc",
 	},
 	.probe	= mxs_lradc_adc_probe,
-	.remove = mxs_lradc_adc_remove,
+	.remove_new = mxs_lradc_adc_remove,
 };
 module_platform_driver(mxs_lradc_adc_driver);
 
diff --git a/drivers/iio/adc/npcm_adc.c b/drivers/iio/adc/npcm_adc.c
index 3d9207c160..3a55465951 100644
--- a/drivers/iio/adc/npcm_adc.c
+++ b/drivers/iio/adc/npcm_adc.c
@@ -320,7 +320,7 @@ err_disable_clk:
 	return ret;
 }
 
-static int npcm_adc_remove(struct platform_device *pdev)
+static void npcm_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct npcm_adc *info = iio_priv(indio_dev);
@@ -333,13 +333,11 @@ static int npcm_adc_remove(struct platform_device *pdev)
 	if (!IS_ERR(info->vref))
 		regulator_disable(info->vref);
 	clk_disable_unprepare(info->adc_clk);
-
-	return 0;
 }
 
 static struct platform_driver npcm_adc_driver = {
 	.probe		= npcm_adc_probe,
-	.remove		= npcm_adc_remove,
+	.remove_new	= npcm_adc_remove,
 	.driver		= {
 		.name	= "npcm_adc",
 		.of_match_table = npcm_adc_match,
diff --git a/drivers/iio/adc/palmas_gpadc.c b/drivers/iio/adc/palmas_gpadc.c
index e202ea18af..203cbbc707 100644
--- a/drivers/iio/adc/palmas_gpadc.c
+++ b/drivers/iio/adc/palmas_gpadc.c
@@ -457,7 +457,7 @@ static int palmas_gpadc_get_calibrated_code(struct palmas_gpadc *adc,
  *
  * The gain error include both gain error, as specified in the datasheet, and
  * the gain error drift. These paramenters vary depending on device and whether
- * the the channel is calibrated (trimmed) or not.
+ * the channel is calibrated (trimmed) or not.
  */
 static int palmas_gpadc_threshold_with_tolerance(int val, const int INL,
 						 const int gain_error,
diff --git a/drivers/iio/adc/qcom-pm8xxx-xoadc.c b/drivers/iio/adc/qcom-pm8xxx-xoadc.c
index 64a3aeb626..01c5586df5 100644
--- a/drivers/iio/adc/qcom-pm8xxx-xoadc.c
+++ b/drivers/iio/adc/qcom-pm8xxx-xoadc.c
@@ -957,7 +957,7 @@ out_disable_vref:
 	return ret;
 }
 
-static int pm8xxx_xoadc_remove(struct platform_device *pdev)
+static void pm8xxx_xoadc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct pm8xxx_xoadc *adc = iio_priv(indio_dev);
@@ -965,8 +965,6 @@ static int pm8xxx_xoadc_remove(struct platform_device *pdev)
 	iio_device_unregister(indio_dev);
 
 	regulator_disable(adc->vref);
-
-	return 0;
 }
 
 static const struct xoadc_variant pm8018_variant = {
@@ -1019,7 +1017,7 @@ static struct platform_driver pm8xxx_xoadc_driver = {
 		.of_match_table = pm8xxx_xoadc_id_table,
 	},
 	.probe		= pm8xxx_xoadc_probe,
-	.remove		= pm8xxx_xoadc_remove,
+	.remove_new	= pm8xxx_xoadc_remove,
 };
 module_platform_driver(pm8xxx_xoadc_driver);
 
diff --git a/drivers/iio/adc/rcar-gyroadc.c b/drivers/iio/adc/rcar-gyroadc.c
index b8972f673c..d524f2e8e9 100644
--- a/drivers/iio/adc/rcar-gyroadc.c
+++ b/drivers/iio/adc/rcar-gyroadc.c
@@ -559,7 +559,7 @@ err_clk_if_enable:
 	return ret;
 }
 
-static int rcar_gyroadc_remove(struct platform_device *pdev)
+static void rcar_gyroadc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct rcar_gyroadc *priv = iio_priv(indio_dev);
@@ -573,8 +573,6 @@ static int rcar_gyroadc_remove(struct platform_device *pdev)
 	pm_runtime_set_suspended(dev);
 	clk_disable_unprepare(priv->clk);
 	rcar_gyroadc_deinit_supplies(indio_dev);
-
-	return 0;
 }
 
 static int rcar_gyroadc_suspend(struct device *dev)
@@ -603,7 +601,7 @@ static const struct dev_pm_ops rcar_gyroadc_pm_ops = {
 
 static struct platform_driver rcar_gyroadc_driver = {
 	.probe          = rcar_gyroadc_probe,
-	.remove         = rcar_gyroadc_remove,
+	.remove_new     = rcar_gyroadc_remove,
 	.driver         = {
 		.name		= DRIVER_NAME,
 		.of_match_table	= rcar_gyroadc_match,
diff --git a/drivers/iio/adc/spear_adc.c b/drivers/iio/adc/spear_adc.c
index ad54ef7981..71362c2ddf 100644
--- a/drivers/iio/adc/spear_adc.c
+++ b/drivers/iio/adc/spear_adc.c
@@ -274,10 +274,9 @@ static int spear_adc_probe(struct platform_device *pdev)
 	int irq;
 
 	indio_dev = devm_iio_device_alloc(dev, sizeof(struct spear_adc_state));
-	if (!indio_dev) {
-		dev_err(dev, "failed allocating iio device\n");
-		return -ENOMEM;
-	}
+	if (!indio_dev)
+		return dev_err_probe(dev, -ENOMEM,
+				     "failed allocating iio device\n");
 
 	st = iio_priv(indio_dev);
 
@@ -297,37 +296,24 @@ static int spear_adc_probe(struct platform_device *pdev)
 	st->adc_base_spear3xx =
 		(struct adc_regs_spear3xx __iomem *)st->adc_base_spear6xx;
 
-	st->clk = devm_clk_get(dev, NULL);
-	if (IS_ERR(st->clk)) {
-		dev_err(dev, "failed getting clock\n");
-		return PTR_ERR(st->clk);
-	}
-
-	ret = clk_prepare_enable(st->clk);
-	if (ret) {
-		dev_err(dev, "failed enabling clock\n");
-		return ret;
-	}
+	st->clk = devm_clk_get_enabled(dev, NULL);
+	if (IS_ERR(st->clk))
+		return dev_err_probe(dev, PTR_ERR(st->clk),
+				     "failed enabling clock\n");
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		ret = irq;
-		goto errout2;
-	}
+	if (irq < 0)
+		return irq;
 
 	ret = devm_request_irq(dev, irq, spear_adc_isr, 0, SPEAR_ADC_MOD_NAME,
 			       st);
-	if (ret < 0) {
-		dev_err(dev, "failed requesting interrupt\n");
-		goto errout2;
-	}
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "failed requesting interrupt\n");
 
 	if (of_property_read_u32(np, "sampling-frequency",
-				 &st->sampling_freq)) {
-		dev_err(dev, "sampling-frequency missing in DT\n");
-		ret = -EINVAL;
-		goto errout2;
-	}
+				 &st->sampling_freq))
+		return dev_err_probe(dev, -EINVAL,
+				     "sampling-frequency missing in DT\n");
 
 	/*
 	 * Optional avg_samples defaults to 0, resulting in single data
@@ -343,8 +329,6 @@ static int spear_adc_probe(struct platform_device *pdev)
 
 	spear_adc_configure(st);
 
-	platform_set_drvdata(pdev, indio_dev);
-
 	init_completion(&st->completion);
 
 	indio_dev->name = SPEAR_ADC_MOD_NAME;
@@ -353,28 +337,13 @@ static int spear_adc_probe(struct platform_device *pdev)
 	indio_dev->channels = spear_adc_iio_channels;
 	indio_dev->num_channels = ARRAY_SIZE(spear_adc_iio_channels);
 
-	ret = iio_device_register(indio_dev);
+	ret = devm_iio_device_register(dev, indio_dev);
 	if (ret)
-		goto errout2;
+		return ret;
 
 	dev_info(dev, "SPEAR ADC driver loaded, IRQ %d\n", irq);
 
 	return 0;
-
-errout2:
-	clk_disable_unprepare(st->clk);
-	return ret;
-}
-
-static int spear_adc_remove(struct platform_device *pdev)
-{
-	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
-	struct spear_adc_state *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	clk_disable_unprepare(st->clk);
-
-	return 0;
 }
 
 #ifdef CONFIG_OF
@@ -387,7 +356,6 @@ MODULE_DEVICE_TABLE(of, spear_adc_dt_ids);
 
 static struct platform_driver spear_adc_driver = {
 	.probe		= spear_adc_probe,
-	.remove		= spear_adc_remove,
 	.driver		= {
 		.name	= SPEAR_ADC_MOD_NAME,
 		.of_match_table = of_match_ptr(spear_adc_dt_ids),
diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c
index bbd5bdd732..616dd72966 100644
--- a/drivers/iio/adc/stm32-adc-core.c
+++ b/drivers/iio/adc/stm32-adc-core.c
@@ -17,10 +17,11 @@
 #include <linux/irqdomain.h>
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
@@ -708,8 +709,6 @@ static int stm32_adc_probe(struct platform_device *pdev)
 	struct stm32_adc_priv *priv;
 	struct device *dev = &pdev->dev;
 	struct device_node *np = pdev->dev.of_node;
-	const struct of_device_id *of_id;
-
 	struct resource *res;
 	u32 max_rate;
 	int ret;
@@ -722,11 +721,7 @@ static int stm32_adc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	platform_set_drvdata(pdev, &priv->common);
 
-	of_id = of_match_device(dev->driver->of_match_table, dev);
-	if (!of_id)
-		return -ENODEV;
-
-	priv->cfg = (const struct stm32_adc_priv_cfg *)of_id->data;
+	priv->cfg = device_get_match_data(dev);
 	priv->nb_adc_max = priv->cfg->num_adcs;
 	spin_lock_init(&priv->common.lock);
 
@@ -819,7 +814,7 @@ err_pm_stop:
 	return ret;
 }
 
-static int stm32_adc_remove(struct platform_device *pdev)
+static void stm32_adc_remove(struct platform_device *pdev)
 {
 	struct stm32_adc_common *common = platform_get_drvdata(pdev);
 	struct stm32_adc_priv *priv = to_stm32_adc_priv(common);
@@ -831,8 +826,6 @@ static int stm32_adc_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
-
-	return 0;
 }
 
 static int stm32_adc_core_runtime_suspend(struct device *dev)
@@ -913,7 +906,7 @@ MODULE_DEVICE_TABLE(of, stm32_adc_of_match);
 
 static struct platform_driver stm32_adc_driver = {
 	.probe = stm32_adc_probe,
-	.remove = stm32_adc_remove,
+	.remove_new = stm32_adc_remove,
 	.driver = {
 		.name = "stm32-adc-core",
 		.of_match_table = stm32_adc_of_match,
diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c
index f7613efb87..b5d3c9cea5 100644
--- a/drivers/iio/adc/stm32-adc.c
+++ b/drivers/iio/adc/stm32-adc.c
@@ -2209,7 +2209,7 @@ static int stm32_adc_generic_chan_init(struct iio_dev *indio_dev,
 				ret = -EINVAL;
 				goto err;
 			}
-			strncpy(adc->chan_name[val], name, STM32_ADC_CH_SZ);
+			strscpy(adc->chan_name[val], name, STM32_ADC_CH_SZ);
 			ret = stm32_adc_populate_int_ch(indio_dev, name, val);
 			if (ret == -ENOENT)
 				continue;
@@ -2513,7 +2513,7 @@ err_dma_disable:
 	return ret;
 }
 
-static int stm32_adc_remove(struct platform_device *pdev)
+static void stm32_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct stm32_adc *adc = iio_priv(indio_dev);
@@ -2532,8 +2532,6 @@ static int stm32_adc_remove(struct platform_device *pdev)
 				  adc->rx_buf, adc->rx_dma_buf);
 		dma_release_channel(adc->dma_chan);
 	}
-
-	return 0;
 }
 
 static int stm32_adc_suspend(struct device *dev)
@@ -2659,7 +2657,7 @@ MODULE_DEVICE_TABLE(of, stm32_adc_of_match);
 
 static struct platform_driver stm32_adc_driver = {
 	.probe = stm32_adc_probe,
-	.remove = stm32_adc_remove,
+	.remove_new = stm32_adc_remove,
 	.driver = {
 		.name = "stm32-adc",
 		.of_match_table = stm32_adc_of_match,
diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c
index b5cc43d12b..ca08ae3108 100644
--- a/drivers/iio/adc/stm32-dfsdm-adc.c
+++ b/drivers/iio/adc/stm32-dfsdm-adc.c
@@ -1620,7 +1620,7 @@ err_cleanup:
 	return ret;
 }
 
-static int stm32_dfsdm_adc_remove(struct platform_device *pdev)
+static void stm32_dfsdm_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct stm32_dfsdm_adc *adc = iio_priv(indio_dev);
@@ -1629,8 +1629,6 @@ static int stm32_dfsdm_adc_remove(struct platform_device *pdev)
 		of_platform_depopulate(&pdev->dev);
 	iio_device_unregister(indio_dev);
 	stm32_dfsdm_dma_release(indio_dev);
-
-	return 0;
 }
 
 static int stm32_dfsdm_adc_suspend(struct device *dev)
@@ -1677,7 +1675,7 @@ static struct platform_driver stm32_dfsdm_adc_driver = {
 		.pm = pm_sleep_ptr(&stm32_dfsdm_adc_pm_ops),
 	},
 	.probe = stm32_dfsdm_adc_probe,
-	.remove = stm32_dfsdm_adc_remove,
+	.remove_new = stm32_dfsdm_adc_remove,
 };
 module_platform_driver(stm32_dfsdm_adc_driver);
 
diff --git a/drivers/iio/adc/stm32-dfsdm-core.c b/drivers/iio/adc/stm32-dfsdm-core.c
index 0f6ebb3061..a05d978b8c 100644
--- a/drivers/iio/adc/stm32-dfsdm-core.c
+++ b/drivers/iio/adc/stm32-dfsdm-core.c
@@ -436,7 +436,7 @@ pm_put:
 	return ret;
 }
 
-static int stm32_dfsdm_core_remove(struct platform_device *pdev)
+static void stm32_dfsdm_core_remove(struct platform_device *pdev)
 {
 	struct stm32_dfsdm *dfsdm = platform_get_drvdata(pdev);
 
@@ -446,8 +446,6 @@ static int stm32_dfsdm_core_remove(struct platform_device *pdev)
 	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
 	stm32_dfsdm_clk_disable_unprepare(dfsdm);
-
-	return 0;
 }
 
 static int stm32_dfsdm_core_suspend(struct device *dev)
@@ -508,7 +506,7 @@ static const struct dev_pm_ops stm32_dfsdm_core_pm_ops = {
 
 static struct platform_driver stm32_dfsdm_driver = {
 	.probe = stm32_dfsdm_probe,
-	.remove = stm32_dfsdm_core_remove,
+	.remove_new = stm32_dfsdm_core_remove,
 	.driver = {
 		.name = "stm32-dfsdm",
 		.of_match_table = stm32_dfsdm_of_match,
diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c
index 25bba96367..100ecced5f 100644
--- a/drivers/iio/adc/sun4i-gpadc-iio.c
+++ b/drivers/iio/adc/sun4i-gpadc-iio.c
@@ -669,7 +669,7 @@ err_map:
 	return ret;
 }
 
-static int sun4i_gpadc_remove(struct platform_device *pdev)
+static void sun4i_gpadc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct sun4i_gpadc_iio *info = iio_priv(indio_dev);
@@ -678,12 +678,10 @@ static int sun4i_gpadc_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 
 	if (!IS_ENABLED(CONFIG_THERMAL_OF))
-		return 0;
+		return;
 
 	if (!info->no_irq)
 		iio_map_array_unregister(indio_dev);
-
-	return 0;
 }
 
 static const struct platform_device_id sun4i_gpadc_id[] = {
@@ -702,7 +700,7 @@ static struct platform_driver sun4i_gpadc_driver = {
 	},
 	.id_table = sun4i_gpadc_id,
 	.probe = sun4i_gpadc_probe,
-	.remove = sun4i_gpadc_remove,
+	.remove_new = sun4i_gpadc_remove,
 };
 MODULE_DEVICE_TABLE(of, sun4i_gpadc_of_id);
 
diff --git a/drivers/iio/adc/ti-adc081c.c b/drivers/iio/adc/ti-adc081c.c
index 50c450e7a5..6c2cb3dabb 100644
--- a/drivers/iio/adc/ti-adc081c.c
+++ b/drivers/iio/adc/ti-adc081c.c
@@ -154,7 +154,6 @@ static void adc081c_reg_disable(void *reg)
 
 static int adc081c_probe(struct i2c_client *client)
 {
-	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	struct iio_dev *iio;
 	struct adc081c *adc;
 	const struct adcxx1c_model *model;
@@ -163,10 +162,7 @@ static int adc081c_probe(struct i2c_client *client)
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA))
 		return -EOPNOTSUPP;
 
-	if (dev_fwnode(&client->dev))
-		model = device_get_match_data(&client->dev);
-	else
-		model = &adcxx1c_models[id->driver_data];
+	model = i2c_get_match_data(client);
 
 	iio = devm_iio_device_alloc(&client->dev, sizeof(*adc));
 	if (!iio)
@@ -207,9 +203,9 @@ static int adc081c_probe(struct i2c_client *client)
 }
 
 static const struct i2c_device_id adc081c_id[] = {
-	{ "adc081c", ADC081C },
-	{ "adc101c", ADC101C },
-	{ "adc121c", ADC121C },
+	{ "adc081c", (kernel_ulong_t)&adcxx1c_models[ADC081C] },
+	{ "adc101c", (kernel_ulong_t)&adcxx1c_models[ADC101C] },
+	{ "adc121c", (kernel_ulong_t)&adcxx1c_models[ADC121C] },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, adc081c_id);
diff --git a/drivers/iio/adc/ti-ads1015.c b/drivers/iio/adc/ti-ads1015.c
index 075c75a875..6799ea49db 100644
--- a/drivers/iio/adc/ti-ads1015.c
+++ b/drivers/iio/adc/ti-ads1015.c
@@ -976,16 +976,13 @@ static int ads1015_set_conv_mode(struct ads1015_data *data, int mode)
 
 static int ads1015_probe(struct i2c_client *client)
 {
-	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	const struct ads1015_chip_data *chip;
 	struct iio_dev *indio_dev;
 	struct ads1015_data *data;
 	int ret;
 	int i;
 
-	chip = device_get_match_data(&client->dev);
-	if (!chip)
-		chip = (const struct ads1015_chip_data *)id->driver_data;
+	chip = i2c_get_match_data(client);
 	if (!chip)
 		return dev_err_probe(&client->dev, -EINVAL, "Unknown chip\n");
 
@@ -1047,11 +1044,13 @@ static int ads1015_probe(struct i2c_client *client)
 			1 << ADS1015_CFG_COMP_LAT_SHIFT;
 
 		switch (irq_trig) {
+		case IRQF_TRIGGER_FALLING:
 		case IRQF_TRIGGER_LOW:
 			cfg_comp |= ADS1015_CFG_COMP_POL_LOW <<
 					ADS1015_CFG_COMP_POL_SHIFT;
 			break;
 		case IRQF_TRIGGER_HIGH:
+		case IRQF_TRIGGER_RISING:
 			cfg_comp |= ADS1015_CFG_COMP_POL_HIGH <<
 					ADS1015_CFG_COMP_POL_SHIFT;
 			break;
diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index 5f87959869..95fa857e8a 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -683,7 +683,7 @@ err_dma:
 	return err;
 }
 
-static int tiadc_remove(struct platform_device *pdev)
+static void tiadc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct tiadc_device *adc_dev = iio_priv(indio_dev);
@@ -699,8 +699,6 @@ static int tiadc_remove(struct platform_device *pdev)
 
 	step_en = get_adc_step_mask(adc_dev);
 	am335x_tsc_se_clr(adc_dev->mfd_tscadc, step_en);
-
-	return 0;
 }
 
 static int tiadc_suspend(struct device *dev)
@@ -749,7 +747,7 @@ static struct platform_driver tiadc_driver = {
 		.of_match_table = ti_adc_dt_ids,
 	},
 	.probe	= tiadc_probe,
-	.remove	= tiadc_remove,
+	.remove_new = tiadc_remove,
 };
 module_platform_driver(tiadc_driver);
 
diff --git a/drivers/iio/adc/twl4030-madc.c b/drivers/iio/adc/twl4030-madc.c
index c279c4f2c9..4a247ca25a 100644
--- a/drivers/iio/adc/twl4030-madc.c
+++ b/drivers/iio/adc/twl4030-madc.c
@@ -892,7 +892,7 @@ err_current_generator:
 	return ret;
 }
 
-static int twl4030_madc_remove(struct platform_device *pdev)
+static void twl4030_madc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *iio_dev = platform_get_drvdata(pdev);
 	struct twl4030_madc_data *madc = iio_priv(iio_dev);
@@ -903,8 +903,6 @@ static int twl4030_madc_remove(struct platform_device *pdev)
 	twl4030_madc_set_power(madc, 0);
 
 	regulator_disable(madc->usb3v1);
-
-	return 0;
 }
 
 #ifdef CONFIG_OF
@@ -917,7 +915,7 @@ MODULE_DEVICE_TABLE(of, twl_madc_of_match);
 
 static struct platform_driver twl4030_madc_driver = {
 	.probe = twl4030_madc_probe,
-	.remove = twl4030_madc_remove,
+	.remove_new = twl4030_madc_remove,
 	.driver = {
 		   .name = "twl4030_madc",
 		   .of_match_table = of_match_ptr(twl_madc_of_match),
diff --git a/drivers/iio/adc/twl6030-gpadc.c b/drivers/iio/adc/twl6030-gpadc.c
index 32873fb5f3..78bf55438b 100644
--- a/drivers/iio/adc/twl6030-gpadc.c
+++ b/drivers/iio/adc/twl6030-gpadc.c
@@ -16,9 +16,10 @@
  */
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/of_platform.h>
+#include <linux/property.h>
 #include <linux/mfd/twl.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
@@ -879,17 +880,14 @@ static int twl6030_gpadc_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct twl6030_gpadc_data *gpadc;
 	const struct twl6030_gpadc_platform_data *pdata;
-	const struct of_device_id *match;
 	struct iio_dev *indio_dev;
 	int irq;
 	int ret;
 
-	match = of_match_device(of_twl6030_match_tbl, dev);
-	if (!match)
+	pdata = device_get_match_data(&pdev->dev);
+	if (!pdata)
 		return -EINVAL;
 
-	pdata = match->data;
-
 	indio_dev = devm_iio_device_alloc(dev, sizeof(*gpadc));
 	if (!indio_dev)
 		return -ENOMEM;
@@ -968,14 +966,12 @@ static int twl6030_gpadc_probe(struct platform_device *pdev)
 	return iio_device_register(indio_dev);
 }
 
-static int twl6030_gpadc_remove(struct platform_device *pdev)
+static void twl6030_gpadc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 
 	twl6030_gpadc_disable_irq(TWL6030_GPADC_RT_SW1_EOC_MASK);
 	iio_device_unregister(indio_dev);
-
-	return 0;
 }
 
 static int twl6030_gpadc_suspend(struct device *pdev)
@@ -1007,7 +1003,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(twl6030_gpadc_pm_ops, twl6030_gpadc_suspend,
 
 static struct platform_driver twl6030_gpadc_driver = {
 	.probe		= twl6030_gpadc_probe,
-	.remove		= twl6030_gpadc_remove,
+	.remove_new	= twl6030_gpadc_remove,
 	.driver		= {
 		.name	= DRIVER_NAME,
 		.pm	= pm_sleep_ptr(&twl6030_gpadc_pm_ops),
diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c
index ae31aafd26..e4548df3f8 100644
--- a/drivers/iio/adc/vf610_adc.c
+++ b/drivers/iio/adc/vf610_adc.c
@@ -916,7 +916,7 @@ error_adc_clk_enable:
 	return ret;
 }
 
-static int vf610_adc_remove(struct platform_device *pdev)
+static void vf610_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct vf610_adc *info = iio_priv(indio_dev);
@@ -925,8 +925,6 @@ static int vf610_adc_remove(struct platform_device *pdev)
 	iio_triggered_buffer_cleanup(indio_dev);
 	regulator_disable(info->vref);
 	clk_disable_unprepare(info->clk);
-
-	return 0;
 }
 
 static int vf610_adc_suspend(struct device *dev)
@@ -974,7 +972,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(vf610_adc_pm_ops, vf610_adc_suspend,
 
 static struct platform_driver vf610_adc_driver = {
 	.probe          = vf610_adc_probe,
-	.remove         = vf610_adc_remove,
+	.remove_new     = vf610_adc_remove,
 	.driver         = {
 		.name   = DRIVER_NAME,
 		.of_match_table = vf610_adc_match,
diff --git a/drivers/iio/addac/Kconfig b/drivers/iio/addac/Kconfig
index 397544f23b..16876b8b5c 100644
--- a/drivers/iio/addac/Kconfig
+++ b/drivers/iio/addac/Kconfig
@@ -40,6 +40,7 @@ config STX104
 	select REGMAP_MMIO
 	select GPIOLIB
 	select GPIO_REGMAP
+	select I8254
 	help
 	  Say yes here to build support for the Apex Embedded Systems STX104
 	  integrated analog PC/104 card.
diff --git a/drivers/iio/addac/ad74413r.c b/drivers/iio/addac/ad74413r.c
index 6b0e8218f1..7af3e4b8fe 100644
--- a/drivers/iio/addac/ad74413r.c
+++ b/drivers/iio/addac/ad74413r.c
@@ -442,11 +442,29 @@ static int ad74413r_set_channel_function(struct ad74413r_state *st,
 	int ret;
 
 	ret = regmap_update_bits(st->regmap,
+				 AD74413R_REG_CH_FUNC_SETUP_X(channel),
+				 AD74413R_CH_FUNC_SETUP_MASK,
+				 CH_FUNC_HIGH_IMPEDANCE);
+	if (ret)
+		return ret;
+
+	/* Set DAC code to 0 prior to changing channel function */
+	ret = ad74413r_set_channel_dac_code(st, channel, 0);
+	if (ret)
+		return ret;
+
+	/* Delay required before transition to new desired mode */
+	usleep_range(130, 150);
+
+	ret = regmap_update_bits(st->regmap,
 				  AD74413R_REG_CH_FUNC_SETUP_X(channel),
 				  AD74413R_CH_FUNC_SETUP_MASK, func);
 	if (ret)
 		return ret;
 
+	/* Delay required before updating the new DAC code */
+	usleep_range(150, 170);
+
 	if (func == CH_FUNC_CURRENT_INPUT_LOOP_POWER)
 		ret = regmap_set_bits(st->regmap,
 				      AD74413R_REG_ADC_CONFIG_X(channel),
@@ -705,8 +723,8 @@ static int ad74413r_get_input_current_scale(struct ad74413r_state *st,
 	return IIO_VAL_FRACTIONAL;
 }
 
-static int ad74413_get_input_current_offset(struct ad74413r_state *st,
-					    unsigned int channel, int *val)
+static int ad74413r_get_input_current_offset(struct ad74413r_state *st,
+					     unsigned int channel, int *val)
 {
 	unsigned int range;
 	int voltage_range;
@@ -991,7 +1009,7 @@ static int ad74413r_read_raw(struct iio_dev *indio_dev,
 			return ad74413r_get_input_voltage_offset(st,
 				chan->channel, val);
 		case IIO_CURRENT:
-			return ad74413_get_input_current_offset(st,
+			return ad74413r_get_input_current_offset(st,
 				chan->channel, val);
 		default:
 			return -EINVAL;
diff --git a/drivers/iio/addac/stx104.c b/drivers/iio/addac/stx104.c
index d1f7ce033b..6946a65512 100644
--- a/drivers/iio/addac/stx104.c
+++ b/drivers/iio/addac/stx104.c
@@ -8,6 +8,7 @@
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/gpio/regmap.h>
+#include <linux/i8254.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/types.h>
 #include <linux/isa.h>
@@ -55,6 +56,7 @@ MODULE_PARM_DESC(base, "Apex Embedded Systems STX104 base addresses");
 #define STX104_ADC_STATUS (STX104_AIO_BASE + 0x8)
 #define STX104_ADC_CONTROL (STX104_AIO_BASE + 0x9)
 #define STX104_ADC_CONFIGURATION (STX104_AIO_BASE + 0x11)
+#define STX104_I8254_BASE (STX104_AIO_BASE + 0x12)
 
 #define STX104_AIO_DATA_STRIDE 2
 #define STX104_DAC_OFFSET(_channel) (STX104_DAC_BASE + STX104_AIO_DATA_STRIDE * (_channel))
@@ -77,6 +79,7 @@ MODULE_PARM_DESC(base, "Apex Embedded Systems STX104 base addresses");
 /* ADC Configuration */
 #define STX104_GAIN GENMASK(1, 0)
 #define STX104_ADBU BIT(2)
+#define STX104_RBK GENMASK(7, 4)
 #define STX104_BIPOLAR 0
 #define STX104_GAIN_X1 0
 #define STX104_GAIN_X2 1
@@ -168,6 +171,32 @@ static const struct regmap_config dio_regmap_config = {
 	.io_port = true,
 };
 
+static const struct regmap_range pit_wr_ranges[] = {
+	regmap_reg_range(0x0, 0x3),
+};
+static const struct regmap_range pit_rd_ranges[] = {
+	regmap_reg_range(0x0, 0x2),
+};
+static const struct regmap_access_table pit_wr_table = {
+	.yes_ranges = pit_wr_ranges,
+	.n_yes_ranges = ARRAY_SIZE(pit_wr_ranges),
+};
+static const struct regmap_access_table pit_rd_table = {
+	.yes_ranges = pit_rd_ranges,
+	.n_yes_ranges = ARRAY_SIZE(pit_rd_ranges),
+};
+
+static const struct regmap_config pit_regmap_config = {
+	.name = "i8254",
+	.reg_bits = 8,
+	.reg_stride = 1,
+	.reg_base = STX104_I8254_BASE,
+	.val_bits = 8,
+	.io_port = true,
+	.wr_table = &pit_wr_table,
+	.rd_table = &pit_rd_table,
+};
+
 static int stx104_read_raw(struct iio_dev *indio_dev,
 	struct iio_chan_spec const *chan, int *val, int *val2, long mask)
 {
@@ -339,6 +368,21 @@ static const char *stx104_names[STX104_NGPIO] = {
 	"DIN0", "DIN1", "DIN2", "DIN3", "DOUT0", "DOUT1", "DOUT2", "DOUT3"
 };
 
+static int bank_select_i8254(struct regmap *map)
+{
+	const u8 select_i8254[] = { 0x3, 0xB, 0xA };
+	size_t i;
+	int err;
+
+	for (i = 0; i < ARRAY_SIZE(select_i8254); i++) {
+		err = regmap_write_bits(map, STX104_ADC_CONFIGURATION, STX104_RBK, select_i8254[i]);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
 static int stx104_init_hw(struct stx104_iio *const priv)
 {
 	int err;
@@ -361,7 +405,7 @@ static int stx104_init_hw(struct stx104_iio *const priv)
 	if (err)
 		return err;
 
-	return 0;
+	return bank_select_i8254(priv->aio_ctl_map);
 }
 
 static int stx104_probe(struct device *dev, unsigned int id)
@@ -369,6 +413,7 @@ static int stx104_probe(struct device *dev, unsigned int id)
 	struct iio_dev *indio_dev;
 	struct stx104_iio *priv;
 	struct gpio_regmap_config gpio_config;
+	struct i8254_regmap_config pit_config;
 	void __iomem *stx104_base;
 	struct regmap *aio_ctl_map;
 	struct regmap *aio_data_map;
@@ -406,6 +451,11 @@ static int stx104_probe(struct device *dev, unsigned int id)
 		return dev_err_probe(dev, PTR_ERR(dio_map),
 				     "Unable to initialize dio register map\n");
 
+	pit_config.map = devm_regmap_init_mmio(dev, stx104_base, &pit_regmap_config);
+	if (IS_ERR(pit_config.map))
+		return dev_err_probe(dev, PTR_ERR(pit_config.map),
+				     "Unable to initialize i8254 register map\n");
+
 	priv = iio_priv(indio_dev);
 	priv->aio_ctl_map = aio_ctl_map;
 	priv->aio_data_map = aio_data_map;
@@ -449,7 +499,13 @@ static int stx104_probe(struct device *dev, unsigned int id)
 		.drvdata = dio_map,
 	};
 
-	return PTR_ERR_OR_ZERO(devm_gpio_regmap_register(dev, &gpio_config));
+	err = PTR_ERR_OR_ZERO(devm_gpio_regmap_register(dev, &gpio_config));
+	if (err)
+		return err;
+
+	pit_config.parent = dev;
+
+	return devm_i8254_regmap_register(dev, &pit_config);
 }
 
 static struct isa_driver stx104_driver = {
@@ -464,3 +520,4 @@ module_isa_driver(stx104_driver, num_stx104);
 MODULE_AUTHOR("William Breathitt Gray <vilhelm.gray@gmail.com>");
 MODULE_DESCRIPTION("Apex Embedded Systems STX104 IIO driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(I8254);
diff --git a/drivers/iio/amplifiers/hmc425a.c b/drivers/iio/amplifiers/hmc425a.c
index 108f0f1685..e87d35d50a 100644
--- a/drivers/iio/amplifiers/hmc425a.c
+++ b/drivers/iio/amplifiers/hmc425a.c
@@ -21,6 +21,7 @@
 
 enum hmc425a_type {
 	ID_HMC425A,
+	ID_HMC540S,
 };
 
 struct hmc425a_chip_info {
@@ -70,6 +71,9 @@ static int hmc425a_read_raw(struct iio_dev *indio_dev,
 		case ID_HMC425A:
 			gain = ~code * -500;
 			break;
+		case ID_HMC540S:
+			gain = ~code * -1000;
+			break;
 		}
 
 		*val = gain / 1000;
@@ -106,6 +110,9 @@ static int hmc425a_write_raw(struct iio_dev *indio_dev,
 	case ID_HMC425A:
 		code = ~((abs(gain) / 500) & 0x3F);
 		break;
+	case ID_HMC540S:
+		code = ~((abs(gain) / 1000) & 0xF);
+		break;
 	}
 
 	mutex_lock(&st->lock);
@@ -157,6 +164,7 @@ static const struct iio_chan_spec hmc425a_channels[] = {
 /* Match table for of_platform binding */
 static const struct of_device_id hmc425a_of_match[] = {
 	{ .compatible = "adi,hmc425a", .data = (void *)ID_HMC425A },
+	{ .compatible = "adi,hmc540s", .data = (void *)ID_HMC540S },
 	{},
 };
 MODULE_DEVICE_TABLE(of, hmc425a_of_match);
@@ -171,6 +179,15 @@ static struct hmc425a_chip_info hmc425a_chip_info_tbl[] = {
 		.gain_max = 0,
 		.default_gain = -0x40, /* set default gain -31.5db*/
 	},
+	[ID_HMC540S] = {
+		.name = "hmc540s",
+		.channels = hmc425a_channels,
+		.num_channels = ARRAY_SIZE(hmc425a_channels),
+		.num_gpios = 4,
+		.gain_min = -15000,
+		.gain_max = 0,
+		.default_gain = -0x10, /* set default gain -15.0db*/
+	},
 };
 
 static int hmc425a_probe(struct platform_device *pdev)
diff --git a/drivers/iio/chemical/atlas-ezo-sensor.c b/drivers/iio/chemical/atlas-ezo-sensor.c
index 8fc926a2d3..761a853a4d 100644
--- a/drivers/iio/chemical/atlas-ezo-sensor.c
+++ b/drivers/iio/chemical/atlas-ezo-sensor.c
@@ -203,7 +203,6 @@ MODULE_DEVICE_TABLE(of, atlas_ezo_dt_ids);
 
 static int atlas_ezo_probe(struct i2c_client *client)
 {
-	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	const struct atlas_ezo_device *chip;
 	struct atlas_ezo_data *data;
 	struct iio_dev *indio_dev;
@@ -212,10 +211,7 @@ static int atlas_ezo_probe(struct i2c_client *client)
 	if (!indio_dev)
 		return -ENOMEM;
 
-	if (dev_fwnode(&client->dev))
-		chip = device_get_match_data(&client->dev);
-	else
-		chip = (const struct atlas_ezo_device *)id->driver_data;
+	chip = i2c_get_match_data(client);
 	if (!chip)
 		return -EINVAL;
 
diff --git a/drivers/iio/chemical/atlas-sensor.c b/drivers/iio/chemical/atlas-sensor.c
index fb15bb2160..baf93e5e3c 100644
--- a/drivers/iio/chemical/atlas-sensor.c
+++ b/drivers/iio/chemical/atlas-sensor.c
@@ -87,7 +87,7 @@ enum {
 struct atlas_data {
 	struct i2c_client *client;
 	struct iio_trigger *trig;
-	struct atlas_device *chip;
+	const struct atlas_device *chip;
 	struct regmap *regmap;
 	struct irq_work work;
 	unsigned int interrupt_enabled;
@@ -353,7 +353,7 @@ struct atlas_device {
 	int delay;
 };
 
-static struct atlas_device atlas_devices[] = {
+static const struct atlas_device atlas_devices[] = {
 	[ATLAS_PH_SM] = {
 				.channels = atlas_ph_channels,
 				.num_channels = 3,
@@ -589,30 +589,29 @@ static const struct iio_info atlas_info = {
 };
 
 static const struct i2c_device_id atlas_id[] = {
-	{ "atlas-ph-sm", ATLAS_PH_SM },
-	{ "atlas-ec-sm", ATLAS_EC_SM },
-	{ "atlas-orp-sm", ATLAS_ORP_SM },
-	{ "atlas-do-sm", ATLAS_DO_SM },
-	{ "atlas-rtd-sm", ATLAS_RTD_SM },
+	{ "atlas-ph-sm", (kernel_ulong_t)&atlas_devices[ATLAS_PH_SM] },
+	{ "atlas-ec-sm", (kernel_ulong_t)&atlas_devices[ATLAS_EC_SM] },
+	{ "atlas-orp-sm", (kernel_ulong_t)&atlas_devices[ATLAS_ORP_SM] },
+	{ "atlas-do-sm", (kernel_ulong_t)&atlas_devices[ATLAS_DO_SM] },
+	{ "atlas-rtd-sm", (kernel_ulong_t)&atlas_devices[ATLAS_RTD_SM] },
 	{}
 };
 MODULE_DEVICE_TABLE(i2c, atlas_id);
 
 static const struct of_device_id atlas_dt_ids[] = {
-	{ .compatible = "atlas,ph-sm", .data = (void *)ATLAS_PH_SM, },
-	{ .compatible = "atlas,ec-sm", .data = (void *)ATLAS_EC_SM, },
-	{ .compatible = "atlas,orp-sm", .data = (void *)ATLAS_ORP_SM, },
-	{ .compatible = "atlas,do-sm", .data = (void *)ATLAS_DO_SM, },
-	{ .compatible = "atlas,rtd-sm", .data = (void *)ATLAS_RTD_SM, },
+	{ .compatible = "atlas,ph-sm", .data = &atlas_devices[ATLAS_PH_SM] },
+	{ .compatible = "atlas,ec-sm", .data = &atlas_devices[ATLAS_EC_SM] },
+	{ .compatible = "atlas,orp-sm", .data = &atlas_devices[ATLAS_ORP_SM] },
+	{ .compatible = "atlas,do-sm", .data = &atlas_devices[ATLAS_DO_SM] },
+	{ .compatible = "atlas,rtd-sm", .data = &atlas_devices[ATLAS_RTD_SM] },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, atlas_dt_ids);
 
 static int atlas_probe(struct i2c_client *client)
 {
-	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	struct atlas_data *data;
-	struct atlas_device *chip;
+	const struct atlas_device *chip;
 	struct iio_trigger *trig;
 	struct iio_dev *indio_dev;
 	int ret;
@@ -621,10 +620,7 @@ static int atlas_probe(struct i2c_client *client)
 	if (!indio_dev)
 		return -ENOMEM;
 
-	if (!dev_fwnode(&client->dev))
-		chip = &atlas_devices[id->driver_data];
-	else
-		chip = &atlas_devices[(unsigned long)device_get_match_data(&client->dev)];
+	chip = i2c_get_match_data(client);
 
 	indio_dev->info = &atlas_info;
 	indio_dev->name = ATLAS_DRV_NAME;
diff --git a/drivers/iio/chemical/sgp30.c b/drivers/iio/chemical/sgp30.c
index b509cff9ce..21730d62b5 100644
--- a/drivers/iio/chemical/sgp30.c
+++ b/drivers/iio/chemical/sgp30.c
@@ -114,6 +114,7 @@ struct sgp_data {
 };
 
 struct sgp_device {
+	unsigned long product_id;
 	const struct iio_chan_spec *channels;
 	int num_channels;
 };
@@ -182,10 +183,12 @@ static const struct iio_chan_spec sgpc3_channels[] = {
 
 static const struct sgp_device sgp_devices[] = {
 	[SGP30] = {
+		.product_id = SGP30,
 		.channels = sgp30_channels,
 		.num_channels = ARRAY_SIZE(sgp30_channels),
 	},
 	[SGPC3] = {
+		.product_id = SGPC3,
 		.channels = sgpc3_channels,
 		.num_channels = ARRAY_SIZE(sgpc3_channels),
 	},
@@ -491,28 +494,25 @@ static const struct iio_info sgp_info = {
 };
 
 static const struct of_device_id sgp_dt_ids[] = {
-	{ .compatible = "sensirion,sgp30", .data = (void *)SGP30 },
-	{ .compatible = "sensirion,sgpc3", .data = (void *)SGPC3 },
+	{ .compatible = "sensirion,sgp30", .data = &sgp_devices[SGP30] },
+	{ .compatible = "sensirion,sgpc3", .data = &sgp_devices[SGPC3] },
 	{ }
 };
 
 static int sgp_probe(struct i2c_client *client)
 {
 	const struct i2c_device_id *id = i2c_client_get_device_id(client);
+	const struct sgp_device *match_data;
 	struct device *dev = &client->dev;
 	struct iio_dev *indio_dev;
 	struct sgp_data *data;
-	unsigned long product_id;
 	int ret;
 
 	indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
 	if (!indio_dev)
 		return -ENOMEM;
 
-	if (dev_fwnode(dev))
-		product_id = (unsigned long)device_get_match_data(dev);
-	else
-		product_id = id->driver_data;
+	match_data = i2c_get_match_data(client);
 
 	data = iio_priv(indio_dev);
 	i2c_set_clientdata(client, indio_dev);
@@ -528,15 +528,15 @@ static int sgp_probe(struct i2c_client *client)
 
 	data->feature_set = be16_to_cpu(data->buffer.raw_words[0].value);
 
-	ret = sgp_check_compat(data, product_id);
+	ret = sgp_check_compat(data, match_data->product_id);
 	if (ret)
 		return ret;
 
 	indio_dev->info = &sgp_info;
 	indio_dev->name = id->name;
 	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->channels = sgp_devices[product_id].channels;
-	indio_dev->num_channels = sgp_devices[product_id].num_channels;
+	indio_dev->channels = match_data->channels;
+	indio_dev->num_channels = match_data->num_channels;
 
 	sgp_init(data);
 
@@ -562,8 +562,8 @@ static void sgp_remove(struct i2c_client *client)
 }
 
 static const struct i2c_device_id sgp_id[] = {
-	{ "sgp30", SGP30 },
-	{ "sgpc3", SGPC3 },
+	{ "sgp30", (kernel_ulong_t)&sgp_devices[SGP30] },
+	{ "sgpc3", (kernel_ulong_t)&sgp_devices[SGPC3] },
 	{ }
 };
 
diff --git a/drivers/iio/chemical/vz89x.c b/drivers/iio/chemical/vz89x.c
index 13555f4f40..5b358bcd31 100644
--- a/drivers/iio/chemical/vz89x.c
+++ b/drivers/iio/chemical/vz89x.c
@@ -342,19 +342,17 @@ static const struct vz89x_chip_data vz89x_chips[] = {
 };
 
 static const struct of_device_id vz89x_dt_ids[] = {
-	{ .compatible = "sgx,vz89x", .data = (void *) VZ89X },
-	{ .compatible = "sgx,vz89te", .data = (void *) VZ89TE },
+	{ .compatible = "sgx,vz89x", .data = &vz89x_chips[VZ89X] },
+	{ .compatible = "sgx,vz89te", .data = &vz89x_chips[VZ89TE] },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, vz89x_dt_ids);
 
 static int vz89x_probe(struct i2c_client *client)
 {
-	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	struct device *dev = &client->dev;
 	struct iio_dev *indio_dev;
 	struct vz89x_data *data;
-	int chip_id;
 
 	indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
 	if (!indio_dev)
@@ -369,14 +367,10 @@ static int vz89x_probe(struct i2c_client *client)
 	else
 		return -EOPNOTSUPP;
 
-	if (!dev_fwnode(dev))
-		chip_id = id->driver_data;
-	else
-		chip_id = (unsigned long)device_get_match_data(dev);
+	data->chip = i2c_get_match_data(client);
 
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
-	data->chip = &vz89x_chips[chip_id];
 	data->last_update = jiffies - HZ;
 	mutex_init(&data->lock);
 
@@ -391,8 +385,8 @@ static int vz89x_probe(struct i2c_client *client)
 }
 
 static const struct i2c_device_id vz89x_id[] = {
-	{ "vz89x", VZ89X },
-	{ "vz89te", VZ89TE },
+	{ "vz89x", (kernel_ulong_t)&vz89x_chips[VZ89X] },
+	{ "vz89te", (kernel_ulong_t)&vz89x_chips[VZ89TE] },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, vz89x_id);
diff --git a/drivers/iio/dac/dpot-dac.c b/drivers/iio/dac/dpot-dac.c
index 83ce948925..7332064d08 100644
--- a/drivers/iio/dac/dpot-dac.c
+++ b/drivers/iio/dac/dpot-dac.c
@@ -226,15 +226,13 @@ disable_reg:
 	return ret;
 }
 
-static int dpot_dac_remove(struct platform_device *pdev)
+static void dpot_dac_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct dpot_dac *dac = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
 	regulator_disable(dac->vref);
-
-	return 0;
 }
 
 static const struct of_device_id dpot_dac_match[] = {
@@ -245,7 +243,7 @@ MODULE_DEVICE_TABLE(of, dpot_dac_match);
 
 static struct platform_driver dpot_dac_driver = {
 	.probe = dpot_dac_probe,
-	.remove = dpot_dac_remove,
+	.remove_new = dpot_dac_remove,
 	.driver = {
 		.name = "iio-dpot-dac",
 		.of_match_table = dpot_dac_match,
diff --git a/drivers/iio/dac/lpc18xx_dac.c b/drivers/iio/dac/lpc18xx_dac.c
index 60467c6f2c..b3aa4443a6 100644
--- a/drivers/iio/dac/lpc18xx_dac.c
+++ b/drivers/iio/dac/lpc18xx_dac.c
@@ -165,7 +165,7 @@ dis_reg:
 	return ret;
 }
 
-static int lpc18xx_dac_remove(struct platform_device *pdev)
+static void lpc18xx_dac_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct lpc18xx_dac *dac = iio_priv(indio_dev);
@@ -175,8 +175,6 @@ static int lpc18xx_dac_remove(struct platform_device *pdev)
 	writel(0, dac->base + LPC18XX_DAC_CTRL);
 	clk_disable_unprepare(dac->clk);
 	regulator_disable(dac->vref);
-
-	return 0;
 }
 
 static const struct of_device_id lpc18xx_dac_match[] = {
@@ -187,7 +185,7 @@ MODULE_DEVICE_TABLE(of, lpc18xx_dac_match);
 
 static struct platform_driver lpc18xx_dac_driver = {
 	.probe	= lpc18xx_dac_probe,
-	.remove	= lpc18xx_dac_remove,
+	.remove_new = lpc18xx_dac_remove,
 	.driver	= {
 		.name = "lpc18xx-dac",
 		.of_match_table = lpc18xx_dac_match,
diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
index f4a3124d29..25bb1c0490 100644
--- a/drivers/iio/dac/mcp4725.c
+++ b/drivers/iio/dac/mcp4725.c
@@ -30,9 +30,14 @@
 #define MCP472X_REF_VREF_UNBUFFERED	0x02
 #define MCP472X_REF_VREF_BUFFERED	0x03
 
+struct mcp4725_chip_info {
+	const struct iio_chan_spec *chan_spec;
+	u8 dac_reg_offset;
+	bool use_ext_ref_voltage;
+};
+
 struct mcp4725_data {
 	struct i2c_client *client;
-	int id;
 	unsigned ref_mode;
 	bool vref_buffered;
 	u16 dac_value;
@@ -384,6 +389,7 @@ static int mcp4725_probe_dt(struct device *dev,
 static int mcp4725_probe(struct i2c_client *client)
 {
 	const struct i2c_device_id *id = i2c_client_get_device_id(client);
+	const struct mcp4725_chip_info *info;
 	struct mcp4725_data *data;
 	struct iio_dev *indio_dev;
 	struct mcp4725_platform_data *pdata, pdata_dt;
@@ -398,10 +404,7 @@ static int mcp4725_probe(struct i2c_client *client)
 	data = iio_priv(indio_dev);
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
-	if (dev_fwnode(&client->dev))
-		data->id = (uintptr_t)device_get_match_data(&client->dev);
-	else
-		data->id = id->driver_data;
+	info = i2c_get_match_data(client);
 	pdata = dev_get_platdata(&client->dev);
 
 	if (!pdata) {
@@ -414,7 +417,7 @@ static int mcp4725_probe(struct i2c_client *client)
 		pdata = &pdata_dt;
 	}
 
-	if (data->id == MCP4725 && pdata->use_vref) {
+	if (info->use_ext_ref_voltage && pdata->use_vref) {
 		dev_err(&client->dev,
 			"external reference is unavailable on MCP4725");
 		return -EINVAL;
@@ -455,12 +458,12 @@ static int mcp4725_probe(struct i2c_client *client)
 
 	indio_dev->name = id->name;
 	indio_dev->info = &mcp4725_info;
-	indio_dev->channels = &mcp472x_channel[id->driver_data];
+	indio_dev->channels = info->chan_spec;
 	indio_dev->num_channels = 1;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
 	/* read current DAC value and settings */
-	err = i2c_master_recv(client, inbuf, data->id == MCP4725 ? 3 : 4);
+	err = i2c_master_recv(client, inbuf, info->dac_reg_offset);
 
 	if (err < 0) {
 		dev_err(&client->dev, "failed to read DAC value");
@@ -470,10 +473,10 @@ static int mcp4725_probe(struct i2c_client *client)
 	data->powerdown = pd > 0;
 	data->powerdown_mode = pd ? pd - 1 : 2; /* largest resistor to gnd */
 	data->dac_value = (inbuf[1] << 4) | (inbuf[2] >> 4);
-	if (data->id == MCP4726)
+	if (!info->use_ext_ref_voltage)
 		ref = (inbuf[3] >> 3) & 0x3;
 
-	if (data->id == MCP4726 && ref != data->ref_mode) {
+	if (!info->use_ext_ref_voltage && ref != data->ref_mode) {
 		dev_info(&client->dev,
 			"voltage reference mode differs (conf: %u, eeprom: %u), setting %u",
 			data->ref_mode, ref, data->ref_mode);
@@ -510,9 +513,20 @@ static void mcp4725_remove(struct i2c_client *client)
 	regulator_disable(data->vdd_reg);
 }
 
+static const struct mcp4725_chip_info mcp4725 = {
+	.chan_spec = &mcp472x_channel[MCP4725],
+	.dac_reg_offset = 3,
+	.use_ext_ref_voltage = true,
+};
+
+static const struct mcp4725_chip_info mcp4726 = {
+	.chan_spec = &mcp472x_channel[MCP4726],
+	.dac_reg_offset = 4,
+};
+
 static const struct i2c_device_id mcp4725_id[] = {
-	{ "mcp4725", MCP4725 },
-	{ "mcp4726", MCP4726 },
+	{ "mcp4725", (kernel_ulong_t)&mcp4725 },
+	{ "mcp4726", (kernel_ulong_t)&mcp4726 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, mcp4725_id);
@@ -520,11 +534,11 @@ MODULE_DEVICE_TABLE(i2c, mcp4725_id);
 static const struct of_device_id mcp4725_of_match[] = {
 	{
 		.compatible = "microchip,mcp4725",
-		.data = (void *)MCP4725
+		.data = &mcp4725
 	},
 	{
 		.compatible = "microchip,mcp4726",
-		.data = (void *)MCP4726
+		.data = &mcp4726
 	},
 	{ }
 };
diff --git a/drivers/iio/dac/stm32-dac-core.c b/drivers/iio/dac/stm32-dac-core.c
index 83bf184e3a..e150ac7291 100644
--- a/drivers/iio/dac/stm32-dac-core.c
+++ b/drivers/iio/dac/stm32-dac-core.c
@@ -9,9 +9,12 @@
 
 #include <linux/clk.h>
 #include <linux/delay.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 #include <linux/regulator/consumer.h>
 #include <linux/reset.h>
 
@@ -94,16 +97,12 @@ static int stm32_dac_probe(struct platform_device *pdev)
 	struct reset_control *rst;
 	int ret;
 
-	if (!dev->of_node)
-		return -ENODEV;
-
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 	platform_set_drvdata(pdev, &priv->common);
 
-	cfg = (const struct stm32_dac_cfg *)
-		of_match_device(dev->driver->of_match_table, dev)->data;
+	cfg = device_get_match_data(dev);
 
 	mmio = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(mmio))
@@ -183,7 +182,7 @@ err_pm_stop:
 	return ret;
 }
 
-static int stm32_dac_remove(struct platform_device *pdev)
+static void stm32_dac_remove(struct platform_device *pdev)
 {
 	pm_runtime_get_sync(&pdev->dev);
 	of_platform_depopulate(&pdev->dev);
@@ -191,8 +190,6 @@ static int stm32_dac_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
-
-	return 0;
 }
 
 static int stm32_dac_core_resume(struct device *dev)
@@ -249,7 +246,7 @@ MODULE_DEVICE_TABLE(of, stm32_dac_of_match);
 
 static struct platform_driver stm32_dac_driver = {
 	.probe = stm32_dac_probe,
-	.remove = stm32_dac_remove,
+	.remove_new = stm32_dac_remove,
 	.driver = {
 		.name = "stm32-dac-core",
 		.of_match_table = stm32_dac_of_match,
diff --git a/drivers/iio/dac/stm32-dac.c b/drivers/iio/dac/stm32-dac.c
index 15eb440751..5a722f307e 100644
--- a/drivers/iio/dac/stm32-dac.c
+++ b/drivers/iio/dac/stm32-dac.c
@@ -11,12 +11,13 @@
 #include <linux/delay.h>
 #include <linux/iio/iio.h>
 #include <linux/kernel.h>
+#include <linux/kstrtox.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
-#include <linux/string_helpers.h>
+#include <linux/string_choices.h>
 
 #include "stm32-dac-core.h"
 
@@ -361,7 +362,7 @@ err_pm_put:
 	return ret;
 }
 
-static int stm32_dac_remove(struct platform_device *pdev)
+static void stm32_dac_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 
@@ -370,8 +371,6 @@ static int stm32_dac_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
-
-	return 0;
 }
 
 static int stm32_dac_suspend(struct device *dev)
@@ -399,7 +398,7 @@ MODULE_DEVICE_TABLE(of, stm32_dac_of_match);
 
 static struct platform_driver stm32_dac_driver = {
 	.probe = stm32_dac_probe,
-	.remove = stm32_dac_remove,
+	.remove_new = stm32_dac_remove,
 	.driver = {
 		.name = "stm32-dac",
 		.of_match_table = stm32_dac_of_match,
diff --git a/drivers/iio/dac/ti-dac5571.c b/drivers/iio/dac/ti-dac5571.c
index bab11b9adc..efb1269a77 100644
--- a/drivers/iio/dac/ti-dac5571.c
+++ b/drivers/iio/dac/ti-dac5571.c
@@ -313,7 +313,6 @@ static int dac5571_probe(struct i2c_client *client)
 	const struct dac5571_spec *spec;
 	struct dac5571_data *data;
 	struct iio_dev *indio_dev;
-	enum chip_id chip_id;
 	int ret, i;
 
 	indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
@@ -329,12 +328,7 @@ static int dac5571_probe(struct i2c_client *client)
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = dac5571_channels;
 
-	if (dev_fwnode(dev))
-		chip_id = (uintptr_t)device_get_match_data(dev);
-	else
-		chip_id = id->driver_data;
-
-	spec = &dac5571_spec[chip_id];
+	spec = i2c_get_match_data(client);
 
 	indio_dev->num_channels = spec->num_channels;
 	data->spec = spec;
@@ -392,31 +386,31 @@ static void dac5571_remove(struct i2c_client *i2c)
 }
 
 static const struct of_device_id dac5571_of_id[] = {
-	{.compatible = "ti,dac5571", .data = (void *)single_8bit},
-	{.compatible = "ti,dac6571", .data = (void *)single_10bit},
-	{.compatible = "ti,dac7571", .data = (void *)single_12bit},
-	{.compatible = "ti,dac5574", .data = (void *)quad_8bit},
-	{.compatible = "ti,dac6574", .data = (void *)quad_10bit},
-	{.compatible = "ti,dac7574", .data = (void *)quad_12bit},
-	{.compatible = "ti,dac5573", .data = (void *)quad_8bit},
-	{.compatible = "ti,dac6573", .data = (void *)quad_10bit},
-	{.compatible = "ti,dac7573", .data = (void *)quad_12bit},
-	{.compatible = "ti,dac121c081", .data = (void *)single_12bit},
+	{.compatible = "ti,dac121c081", .data = &dac5571_spec[single_12bit] },
+	{.compatible = "ti,dac5571", .data = &dac5571_spec[single_8bit] },
+	{.compatible = "ti,dac6571", .data = &dac5571_spec[single_10bit] },
+	{.compatible = "ti,dac7571", .data = &dac5571_spec[single_12bit] },
+	{.compatible = "ti,dac5574", .data = &dac5571_spec[quad_8bit] },
+	{.compatible = "ti,dac6574", .data = &dac5571_spec[quad_10bit] },
+	{.compatible = "ti,dac7574", .data = &dac5571_spec[quad_12bit] },
+	{.compatible = "ti,dac5573", .data = &dac5571_spec[quad_8bit] },
+	{.compatible = "ti,dac6573", .data = &dac5571_spec[quad_10bit] },
+	{.compatible = "ti,dac7573", .data = &dac5571_spec[quad_12bit] },
 	{}
 };
 MODULE_DEVICE_TABLE(of, dac5571_of_id);
 
 static const struct i2c_device_id dac5571_id[] = {
-	{"dac5571", single_8bit},
-	{"dac6571", single_10bit},
-	{"dac7571", single_12bit},
-	{"dac5574", quad_8bit},
-	{"dac6574", quad_10bit},
-	{"dac7574", quad_12bit},
-	{"dac5573", quad_8bit},
-	{"dac6573", quad_10bit},
-	{"dac7573", quad_12bit},
-	{"dac121c081", single_12bit},
+	{"dac121c081", (kernel_ulong_t)&dac5571_spec[single_12bit] },
+	{"dac5571", (kernel_ulong_t)&dac5571_spec[single_8bit] },
+	{"dac6571", (kernel_ulong_t)&dac5571_spec[single_10bit] },
+	{"dac7571", (kernel_ulong_t)&dac5571_spec[single_12bit] },
+	{"dac5574", (kernel_ulong_t)&dac5571_spec[quad_8bit] },
+	{"dac6574", (kernel_ulong_t)&dac5571_spec[quad_10bit] },
+	{"dac7574", (kernel_ulong_t)&dac5571_spec[quad_12bit] },
+	{"dac5573", (kernel_ulong_t)&dac5571_spec[quad_8bit] },
+	{"dac6573", (kernel_ulong_t)&dac5571_spec[quad_10bit] },
+	{"dac7573", (kernel_ulong_t)&dac5571_spec[quad_12bit] },
 	{}
 };
 MODULE_DEVICE_TABLE(i2c, dac5571_id);
diff --git a/drivers/iio/dac/vf610_dac.c b/drivers/iio/dac/vf610_dac.c
index fc182250c6..de73bc5a1c 100644
--- a/drivers/iio/dac/vf610_dac.c
+++ b/drivers/iio/dac/vf610_dac.c
@@ -231,7 +231,7 @@ error_iio_device_register:
 	return ret;
 }
 
-static int vf610_dac_remove(struct platform_device *pdev)
+static void vf610_dac_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct vf610_dac *info = iio_priv(indio_dev);
@@ -239,8 +239,6 @@ static int vf610_dac_remove(struct platform_device *pdev)
 	iio_device_unregister(indio_dev);
 	vf610_dac_exit(info);
 	clk_disable_unprepare(info->clk);
-
-	return 0;
 }
 
 static int vf610_dac_suspend(struct device *dev)
@@ -274,7 +272,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(vf610_dac_pm_ops, vf610_dac_suspend,
 
 static struct platform_driver vf610_dac_driver = {
 	.probe          = vf610_dac_probe,
-	.remove         = vf610_dac_remove,
+	.remove_new     = vf610_dac_remove,
 	.driver         = {
 		.name   = "vf610-dac",
 		.of_match_table = vf610_dac_match,
diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c
index 698c50da1f..59a38bf945 100644
--- a/drivers/iio/gyro/hid-sensor-gyro-3d.c
+++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c
@@ -359,7 +359,7 @@ error_remove_trigger:
 }
 
 /* Function to deinitialize the processing for usage id */
-static int hid_gyro_3d_remove(struct platform_device *pdev)
+static void hid_gyro_3d_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
@@ -368,8 +368,6 @@ static int hid_gyro_3d_remove(struct platform_device *pdev)
 	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_GYRO_3D);
 	iio_device_unregister(indio_dev);
 	hid_sensor_remove_trigger(indio_dev, &gyro_state->common_attributes);
-
-	return 0;
 }
 
 static const struct platform_device_id hid_gyro_3d_ids[] = {
@@ -388,7 +386,7 @@ static struct platform_driver hid_gyro_3d_platform_driver = {
 		.pm	= &hid_sensor_pm_ops,
 	},
 	.probe		= hid_gyro_3d_probe,
-	.remove		= hid_gyro_3d_remove,
+	.remove_new	= hid_gyro_3d_remove,
 };
 module_platform_driver(hid_gyro_3d_platform_driver);
 
diff --git a/drivers/iio/humidity/hid-sensor-humidity.c b/drivers/iio/humidity/hid-sensor-humidity.c
index fa0fe404a7..bf6d2636a8 100644
--- a/drivers/iio/humidity/hid-sensor-humidity.c
+++ b/drivers/iio/humidity/hid-sensor-humidity.c
@@ -260,7 +260,7 @@ error_remove_trigger:
 }
 
 /* Function to deinitialize the processing for usage id */
-static int hid_humidity_remove(struct platform_device *pdev)
+static void hid_humidity_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = dev_get_platdata(&pdev->dev);
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
@@ -269,8 +269,6 @@ static int hid_humidity_remove(struct platform_device *pdev)
 	iio_device_unregister(indio_dev);
 	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_HUMIDITY);
 	hid_sensor_remove_trigger(indio_dev, &humid_st->common_attributes);
-
-	return 0;
 }
 
 static const struct platform_device_id hid_humidity_ids[] = {
@@ -289,7 +287,7 @@ static struct platform_driver hid_humidity_platform_driver = {
 		.pm	= &hid_sensor_pm_ops,
 	},
 	.probe		= hid_humidity_probe,
-	.remove		= hid_humidity_remove,
+	.remove_new	= hid_humidity_remove,
 };
 module_platform_driver(hid_humidity_platform_driver);
 
diff --git a/drivers/iio/humidity/si7005.c b/drivers/iio/humidity/si7005.c
index ebfb79bc9e..9465908cc6 100644
--- a/drivers/iio/humidity/si7005.c
+++ b/drivers/iio/humidity/si7005.c
@@ -169,9 +169,16 @@ static const struct i2c_device_id si7005_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, si7005_id);
 
+static const struct of_device_id si7005_dt_ids[] = {
+	{ .compatible = "silabs,si7005" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, si7005_dt_ids);
+
 static struct i2c_driver si7005_driver = {
 	.driver = {
 		.name	= "si7005",
+		.of_match_table = si7005_dt_ids,
 	},
 	.probe = si7005_probe,
 	.id_table = si7005_id,
diff --git a/drivers/iio/iio_core.h b/drivers/iio/iio_core.h
index 501e286702..1a38b1915e 100644
--- a/drivers/iio/iio_core.h
+++ b/drivers/iio/iio_core.h
@@ -30,9 +30,6 @@ struct iio_ioctl_handler {
 		      unsigned int cmd, unsigned long arg);
 };
 
-long iio_device_ioctl(struct iio_dev *indio_dev, struct file *filp,
-		      unsigned int cmd, unsigned long arg);
-
 void iio_device_ioctl_handler_register(struct iio_dev *indio_dev,
 				       struct iio_ioctl_handler *h);
 void iio_device_ioctl_handler_unregister(struct iio_ioctl_handler *h);
diff --git a/drivers/iio/imu/adis16475.c b/drivers/iio/imu/adis16475.c
index 6c81dc5bf2..64be656f0b 100644
--- a/drivers/iio/imu/adis16475.c
+++ b/drivers/iio/imu/adis16475.c
@@ -31,6 +31,12 @@
 #define ADIS16475_REG_Y_ACCEL_L		0x14
 #define ADIS16475_REG_Z_ACCEL_L		0x18
 #define ADIS16475_REG_TEMP_OUT		0x1c
+#define ADIS16475_REG_X_DELTANG_L	0x24
+#define ADIS16475_REG_Y_DELTANG_L	0x28
+#define ADIS16475_REG_Z_DELTANG_L	0x2C
+#define ADIS16475_REG_X_DELTVEL_L	0x30
+#define ADIS16475_REG_Y_DELTVEL_L	0x34
+#define ADIS16475_REG_Z_DELTVEL_L	0x38
 #define ADIS16475_REG_X_GYRO_BIAS_L	0x40
 #define ADIS16475_REG_Y_GYRO_BIAS_L	0x44
 #define ADIS16475_REG_Z_GYRO_BIAS_L	0x48
@@ -55,6 +61,7 @@
 #define ADIS16475_REG_PROD_ID		0x72
 #define ADIS16475_REG_SERIAL_NUM	0x74
 #define ADIS16475_REG_FLASH_CNT		0x7c
+#define ADIS16500_BURST_DATA_SEL_MASK	BIT(8)
 #define ADIS16500_BURST32_MASK		BIT(9)
 #define ADIS16500_BURST32(x)		FIELD_PREP(ADIS16500_BURST32_MASK, x)
 /* number of data elements in burst mode */
@@ -65,6 +72,8 @@
 #define ADIS16475_BURST_MAX_SPEED	1000000
 #define ADIS16475_LSB_DEC_MASK		0
 #define ADIS16475_LSB_FIR_MASK		1
+#define ADIS16500_BURST_DATA_SEL_0_CHN_MASK	GENMASK(5, 0)
+#define ADIS16500_BURST_DATA_SEL_1_CHN_MASK	GENMASK(12, 7)
 
 enum {
 	ADIS16475_SYNC_DIRECT = 1,
@@ -84,16 +93,20 @@ struct adis16475_chip_info {
 	const struct adis16475_sync *sync;
 	const struct adis_data adis_data;
 	const char *name;
+#define ADIS16475_HAS_BURST32		BIT(0)
+#define ADIS16475_HAS_BURST_DELTA_DATA	BIT(1)
+	const long flags;
 	u32 num_channels;
 	u32 gyro_max_val;
 	u32 gyro_max_scale;
 	u32 accel_max_val;
 	u32 accel_max_scale;
 	u32 temp_scale;
+	u32 deltang_max_val;
+	u32 deltvel_max_val;
 	u32 int_clk;
 	u16 max_dec;
 	u8 num_sync;
-	bool has_burst32;
 };
 
 struct adis16475 {
@@ -115,6 +128,12 @@ enum {
 	ADIS16475_SCAN_ACCEL_Y,
 	ADIS16475_SCAN_ACCEL_Z,
 	ADIS16475_SCAN_TEMP,
+	ADIS16475_SCAN_DELTANG_X,
+	ADIS16475_SCAN_DELTANG_Y,
+	ADIS16475_SCAN_DELTANG_Z,
+	ADIS16475_SCAN_DELTVEL_X,
+	ADIS16475_SCAN_DELTVEL_Y,
+	ADIS16475_SCAN_DELTVEL_Z,
 };
 
 static bool low_rate_allow;
@@ -451,6 +470,14 @@ static int adis16475_read_raw(struct iio_dev *indio_dev,
 		case IIO_TEMP:
 			*val = st->info->temp_scale;
 			return IIO_VAL_INT;
+		case IIO_DELTA_ANGL:
+			*val = st->info->deltang_max_val;
+			*val2 = 31;
+			return IIO_VAL_FRACTIONAL_LOG2;
+		case IIO_DELTA_VELOCITY:
+			*val = st->info->deltvel_max_val;
+			*val2 = 31;
+			return IIO_VAL_FRACTIONAL_LOG2;
 		default:
 			return -EINVAL;
 		}
@@ -551,6 +578,57 @@ static int adis16475_write_raw(struct iio_dev *indio_dev,
 		}, \
 	}
 
+#define ADIS16475_MOD_CHAN_DELTA(_type, _mod, _address, _si, _r_bits, _s_bits) { \
+		.type = (_type), \
+		.modified = 1, \
+		.channel2 = (_mod), \
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
+		.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ) | \
+			BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY), \
+		.address = (_address), \
+		.scan_index = _si, \
+		.scan_type = { \
+			.sign = 's', \
+			.realbits = (_r_bits), \
+			.storagebits = (_s_bits), \
+			.endianness = IIO_BE, \
+		}, \
+	}
+
+#define ADIS16475_DELTANG_CHAN(_mod) \
+	ADIS16475_MOD_CHAN_DELTA(IIO_DELTA_ANGL, IIO_MOD_ ## _mod, \
+			   ADIS16475_REG_ ## _mod ## _DELTANG_L, ADIS16475_SCAN_DELTANG_ ## _mod, 32, 32)
+
+#define ADIS16475_DELTVEL_CHAN(_mod) \
+	ADIS16475_MOD_CHAN_DELTA(IIO_DELTA_VELOCITY, IIO_MOD_ ## _mod, \
+			   ADIS16475_REG_ ## _mod ## _DELTVEL_L, ADIS16475_SCAN_DELTVEL_ ## _mod, 32, 32)
+
+#define ADIS16475_DELTANG_CHAN_NO_SCAN(_mod) \
+	ADIS16475_MOD_CHAN_DELTA(IIO_DELTA_ANGL, IIO_MOD_ ## _mod, \
+			   ADIS16475_REG_ ## _mod ## _DELTANG_L, -1, 32, 32)
+
+#define ADIS16475_DELTVEL_CHAN_NO_SCAN(_mod) \
+	ADIS16475_MOD_CHAN_DELTA(IIO_DELTA_VELOCITY, IIO_MOD_ ## _mod, \
+			   ADIS16475_REG_ ## _mod ## _DELTVEL_L, -1, 32, 32)
+
+static const struct iio_chan_spec adis16477_channels[] = {
+	ADIS16475_GYRO_CHANNEL(X),
+	ADIS16475_GYRO_CHANNEL(Y),
+	ADIS16475_GYRO_CHANNEL(Z),
+	ADIS16475_ACCEL_CHANNEL(X),
+	ADIS16475_ACCEL_CHANNEL(Y),
+	ADIS16475_ACCEL_CHANNEL(Z),
+	ADIS16475_TEMP_CHANNEL(),
+	ADIS16475_DELTANG_CHAN(X),
+	ADIS16475_DELTANG_CHAN(Y),
+	ADIS16475_DELTANG_CHAN(Z),
+	ADIS16475_DELTVEL_CHAN(X),
+	ADIS16475_DELTVEL_CHAN(Y),
+	ADIS16475_DELTVEL_CHAN(Z),
+	IIO_CHAN_SOFT_TIMESTAMP(13)
+};
+
 static const struct iio_chan_spec adis16475_channels[] = {
 	ADIS16475_GYRO_CHANNEL(X),
 	ADIS16475_GYRO_CHANNEL(Y),
@@ -559,6 +637,12 @@ static const struct iio_chan_spec adis16475_channels[] = {
 	ADIS16475_ACCEL_CHANNEL(Y),
 	ADIS16475_ACCEL_CHANNEL(Z),
 	ADIS16475_TEMP_CHANNEL(),
+	ADIS16475_DELTANG_CHAN_NO_SCAN(X),
+	ADIS16475_DELTANG_CHAN_NO_SCAN(Y),
+	ADIS16475_DELTANG_CHAN_NO_SCAN(Z),
+	ADIS16475_DELTVEL_CHAN_NO_SCAN(X),
+	ADIS16475_DELTVEL_CHAN_NO_SCAN(Y),
+	ADIS16475_DELTVEL_CHAN_NO_SCAN(Z),
 	IIO_CHAN_SOFT_TIMESTAMP(7)
 };
 
@@ -662,6 +746,8 @@ static const struct adis16475_chip_info adis16475_chip_info[] = {
 		.accel_max_val = 1,
 		.accel_max_scale = IIO_M_S_2_TO_G(800 << 16),
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(2160),
+		.deltvel_max_val = 400,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
@@ -677,6 +763,8 @@ static const struct adis16475_chip_info adis16475_chip_info[] = {
 		.accel_max_val = 1,
 		.accel_max_scale = IIO_M_S_2_TO_G(4000 << 16),
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(360),
+		.deltvel_max_val = 100,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
@@ -692,6 +780,8 @@ static const struct adis16475_chip_info adis16475_chip_info[] = {
 		.accel_max_val = 1,
 		.accel_max_scale = IIO_M_S_2_TO_G(4000 << 16),
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(720),
+		.deltvel_max_val = 100,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
@@ -707,6 +797,8 @@ static const struct adis16475_chip_info adis16475_chip_info[] = {
 		.accel_max_val = 1,
 		.accel_max_scale = IIO_M_S_2_TO_G(4000 << 16),
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(2160),
+		.deltvel_max_val = 100,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
@@ -715,50 +807,56 @@ static const struct adis16475_chip_info adis16475_chip_info[] = {
 	},
 	[ADIS16477_1] = {
 		.name = "adis16477-1",
-		.num_channels = ARRAY_SIZE(adis16475_channels),
-		.channels = adis16475_channels,
+		.num_channels = ARRAY_SIZE(adis16477_channels),
+		.channels = adis16477_channels,
 		.gyro_max_val = 1,
 		.gyro_max_scale = IIO_RAD_TO_DEGREE(160 << 16),
 		.accel_max_val = 1,
 		.accel_max_scale = IIO_M_S_2_TO_G(800 << 16),
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(360),
+		.deltvel_max_val = 400,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
 		.num_sync = ARRAY_SIZE(adis16475_sync_mode),
-		.has_burst32 = true,
+		.flags = ADIS16475_HAS_BURST32 | ADIS16475_HAS_BURST_DELTA_DATA,
 		.adis_data = ADIS16475_DATA(16477, &adis16475_timeouts),
 	},
 	[ADIS16477_2] = {
 		.name = "adis16477-2",
-		.num_channels = ARRAY_SIZE(adis16475_channels),
-		.channels = adis16475_channels,
+		.num_channels = ARRAY_SIZE(adis16477_channels),
+		.channels = adis16477_channels,
 		.gyro_max_val = 1,
 		.gyro_max_scale = IIO_RAD_TO_DEGREE(40 << 16),
 		.accel_max_val = 1,
 		.accel_max_scale = IIO_M_S_2_TO_G(800 << 16),
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(720),
+		.deltvel_max_val = 400,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
 		.num_sync = ARRAY_SIZE(adis16475_sync_mode),
-		.has_burst32 = true,
+		.flags = ADIS16475_HAS_BURST32 | ADIS16475_HAS_BURST_DELTA_DATA,
 		.adis_data = ADIS16475_DATA(16477, &adis16475_timeouts),
 	},
 	[ADIS16477_3] = {
 		.name = "adis16477-3",
-		.num_channels = ARRAY_SIZE(adis16475_channels),
-		.channels = adis16475_channels,
+		.num_channels = ARRAY_SIZE(adis16477_channels),
+		.channels = adis16477_channels,
 		.gyro_max_val = 1,
 		.gyro_max_scale = IIO_RAD_TO_DEGREE(10 << 16),
 		.accel_max_val = 1,
 		.accel_max_scale = IIO_M_S_2_TO_G(800 << 16),
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(2160),
+		.deltvel_max_val = 400,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
 		.num_sync = ARRAY_SIZE(adis16475_sync_mode),
-		.has_burst32 = true,
+		.flags = ADIS16475_HAS_BURST32 | ADIS16475_HAS_BURST_DELTA_DATA,
 		.adis_data = ADIS16475_DATA(16477, &adis16475_timeouts),
 	},
 	[ADIS16465_1] = {
@@ -770,6 +868,8 @@ static const struct adis16475_chip_info adis16475_chip_info[] = {
 		.accel_max_val = 1,
 		.accel_max_scale = IIO_M_S_2_TO_G(4000 << 16),
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(360),
+		.deltvel_max_val = 100,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
@@ -785,6 +885,8 @@ static const struct adis16475_chip_info adis16475_chip_info[] = {
 		.accel_max_val = 1,
 		.accel_max_scale = IIO_M_S_2_TO_G(4000 << 16),
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(720),
+		.deltvel_max_val = 100,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
@@ -800,6 +902,8 @@ static const struct adis16475_chip_info adis16475_chip_info[] = {
 		.accel_max_val = 1,
 		.accel_max_scale = IIO_M_S_2_TO_G(4000 << 16),
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(2160),
+		.deltvel_max_val = 100,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
@@ -815,6 +919,8 @@ static const struct adis16475_chip_info adis16475_chip_info[] = {
 		.accel_max_val = 1,
 		.accel_max_scale = IIO_M_S_2_TO_G(800 << 16),
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(360),
+		.deltvel_max_val = 400,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
@@ -830,6 +936,8 @@ static const struct adis16475_chip_info adis16475_chip_info[] = {
 		.accel_max_val = 1,
 		.accel_max_scale = IIO_M_S_2_TO_G(800 << 16),
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(720),
+		.deltvel_max_val = 400,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
@@ -845,6 +953,8 @@ static const struct adis16475_chip_info adis16475_chip_info[] = {
 		.accel_max_val = 1,
 		.accel_max_scale = IIO_M_S_2_TO_G(800 << 16),
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(2160),
+		.deltvel_max_val = 400,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
@@ -853,129 +963,168 @@ static const struct adis16475_chip_info adis16475_chip_info[] = {
 	},
 	[ADIS16500] = {
 		.name = "adis16500",
-		.num_channels = ARRAY_SIZE(adis16475_channels),
-		.channels = adis16475_channels,
+		.num_channels = ARRAY_SIZE(adis16477_channels),
+		.channels = adis16477_channels,
 		.gyro_max_val = 1,
 		.gyro_max_scale = IIO_RAD_TO_DEGREE(10 << 16),
 		.accel_max_val = 392,
 		.accel_max_scale = 32000 << 16,
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(2160),
+		.deltvel_max_val = 400,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
 		/* pulse sync not supported */
 		.num_sync = ARRAY_SIZE(adis16475_sync_mode) - 1,
-		.has_burst32 = true,
+		.flags = ADIS16475_HAS_BURST32 | ADIS16475_HAS_BURST_DELTA_DATA,
 		.adis_data = ADIS16475_DATA(16500, &adis1650x_timeouts),
 	},
 	[ADIS16505_1] = {
 		.name = "adis16505-1",
-		.num_channels = ARRAY_SIZE(adis16475_channels),
-		.channels = adis16475_channels,
+		.num_channels = ARRAY_SIZE(adis16477_channels),
+		.channels = adis16477_channels,
 		.gyro_max_val = 1,
 		.gyro_max_scale = IIO_RAD_TO_DEGREE(160 << 16),
 		.accel_max_val = 78,
 		.accel_max_scale = 32000 << 16,
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(360),
+		.deltvel_max_val = 100,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
 		/* pulse sync not supported */
 		.num_sync = ARRAY_SIZE(adis16475_sync_mode) - 1,
-		.has_burst32 = true,
+		.flags = ADIS16475_HAS_BURST32 | ADIS16475_HAS_BURST_DELTA_DATA,
 		.adis_data = ADIS16475_DATA(16505, &adis1650x_timeouts),
 	},
 	[ADIS16505_2] = {
 		.name = "adis16505-2",
-		.num_channels = ARRAY_SIZE(adis16475_channels),
-		.channels = adis16475_channels,
+		.num_channels = ARRAY_SIZE(adis16477_channels),
+		.channels = adis16477_channels,
 		.gyro_max_val = 1,
 		.gyro_max_scale = IIO_RAD_TO_DEGREE(40 << 16),
 		.accel_max_val = 78,
 		.accel_max_scale = 32000 << 16,
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(720),
+		.deltvel_max_val = 100,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
 		/* pulse sync not supported */
 		.num_sync = ARRAY_SIZE(adis16475_sync_mode) - 1,
-		.has_burst32 = true,
+		.flags = ADIS16475_HAS_BURST32 | ADIS16475_HAS_BURST_DELTA_DATA,
 		.adis_data = ADIS16475_DATA(16505, &adis1650x_timeouts),
 	},
 	[ADIS16505_3] = {
 		.name = "adis16505-3",
-		.num_channels = ARRAY_SIZE(adis16475_channels),
-		.channels = adis16475_channels,
+		.num_channels = ARRAY_SIZE(adis16477_channels),
+		.channels = adis16477_channels,
 		.gyro_max_val = 1,
 		.gyro_max_scale = IIO_RAD_TO_DEGREE(10 << 16),
 		.accel_max_val = 78,
 		.accel_max_scale = 32000 << 16,
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(2160),
+		.deltvel_max_val = 100,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
 		/* pulse sync not supported */
 		.num_sync = ARRAY_SIZE(adis16475_sync_mode) - 1,
-		.has_burst32 = true,
+		.flags = ADIS16475_HAS_BURST32 | ADIS16475_HAS_BURST_DELTA_DATA,
 		.adis_data = ADIS16475_DATA(16505, &adis1650x_timeouts),
 	},
 	[ADIS16507_1] = {
 		.name = "adis16507-1",
-		.num_channels = ARRAY_SIZE(adis16475_channels),
-		.channels = adis16475_channels,
+		.num_channels = ARRAY_SIZE(adis16477_channels),
+		.channels = adis16477_channels,
 		.gyro_max_val = 1,
 		.gyro_max_scale = IIO_RAD_TO_DEGREE(160 << 16),
 		.accel_max_val = 392,
 		.accel_max_scale = 32000 << 16,
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(360),
+		.deltvel_max_val = 400,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
 		/* pulse sync not supported */
 		.num_sync = ARRAY_SIZE(adis16475_sync_mode) - 1,
-		.has_burst32 = true,
+		.flags = ADIS16475_HAS_BURST32 | ADIS16475_HAS_BURST_DELTA_DATA,
 		.adis_data = ADIS16475_DATA(16507, &adis1650x_timeouts),
 	},
 	[ADIS16507_2] = {
 		.name = "adis16507-2",
-		.num_channels = ARRAY_SIZE(adis16475_channels),
-		.channels = adis16475_channels,
+		.num_channels = ARRAY_SIZE(adis16477_channels),
+		.channels = adis16477_channels,
 		.gyro_max_val = 1,
 		.gyro_max_scale = IIO_RAD_TO_DEGREE(40 << 16),
 		.accel_max_val = 392,
 		.accel_max_scale = 32000 << 16,
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(720),
+		.deltvel_max_val = 400,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
 		/* pulse sync not supported */
 		.num_sync = ARRAY_SIZE(adis16475_sync_mode) - 1,
-		.has_burst32 = true,
+		.flags = ADIS16475_HAS_BURST32 | ADIS16475_HAS_BURST_DELTA_DATA,
 		.adis_data = ADIS16475_DATA(16507, &adis1650x_timeouts),
 	},
 	[ADIS16507_3] = {
 		.name = "adis16507-3",
-		.num_channels = ARRAY_SIZE(adis16475_channels),
-		.channels = adis16475_channels,
+		.num_channels = ARRAY_SIZE(adis16477_channels),
+		.channels = adis16477_channels,
 		.gyro_max_val = 1,
 		.gyro_max_scale = IIO_RAD_TO_DEGREE(10 << 16),
 		.accel_max_val = 392,
 		.accel_max_scale = 32000 << 16,
 		.temp_scale = 100,
+		.deltang_max_val = IIO_DEGREE_TO_RAD(2160),
+		.deltvel_max_val = 400,
 		.int_clk = 2000,
 		.max_dec = 1999,
 		.sync = adis16475_sync_mode,
 		/* pulse sync not supported */
 		.num_sync = ARRAY_SIZE(adis16475_sync_mode) - 1,
-		.has_burst32 = true,
+		.flags = ADIS16475_HAS_BURST32 | ADIS16475_HAS_BURST_DELTA_DATA,
 		.adis_data = ADIS16475_DATA(16507, &adis1650x_timeouts),
 	},
 };
 
+static int adis16475_update_scan_mode(struct iio_dev *indio_dev,
+				      const unsigned long *scan_mask)
+{
+	u16 en;
+	int ret;
+	struct adis16475 *st = iio_priv(indio_dev);
+
+	if (st->info->flags & ADIS16475_HAS_BURST_DELTA_DATA) {
+		if ((*scan_mask & ADIS16500_BURST_DATA_SEL_0_CHN_MASK) &&
+		    (*scan_mask & ADIS16500_BURST_DATA_SEL_1_CHN_MASK))
+			return -EINVAL;
+		if (*scan_mask & ADIS16500_BURST_DATA_SEL_0_CHN_MASK)
+			en = FIELD_PREP(ADIS16500_BURST_DATA_SEL_MASK, 0);
+		else
+			en = FIELD_PREP(ADIS16500_BURST_DATA_SEL_MASK, 1);
+
+		ret = __adis_update_bits(&st->adis, ADIS16475_REG_MSG_CTRL,
+					 ADIS16500_BURST_DATA_SEL_MASK, en);
+		if (ret)
+			return ret;
+	}
+
+	return adis_update_scan_mode(indio_dev, scan_mask);
+}
+
 static const struct iio_info adis16475_info = {
 	.read_raw = &adis16475_read_raw,
 	.write_raw = &adis16475_write_raw,
-	.update_scan_mode = adis_update_scan_mode,
+	.update_scan_mode = adis16475_update_scan_mode,
 	.debugfs_reg_access = adis_debugfs_reg_access,
 };
 
@@ -998,7 +1147,7 @@ static void adis16475_burst32_check(struct adis16475 *st)
 	int ret;
 	struct adis *adis = &st->adis;
 
-	if (!st->info->has_burst32)
+	if (!(st->info->flags & ADIS16475_HAS_BURST32))
 		return;
 
 	if (st->lsb_flag && !st->burst32) {
@@ -1044,7 +1193,7 @@ static irqreturn_t adis16475_trigger_handler(int irq, void *p)
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct adis16475 *st = iio_priv(indio_dev);
 	struct adis *adis = &st->adis;
-	int ret, bit, i = 0;
+	int ret, bit, buff_offset = 0, i = 0;
 	__be16 *buffer;
 	u16 crc;
 	bool valid;
@@ -1073,7 +1222,20 @@ static irqreturn_t adis16475_trigger_handler(int irq, void *p)
 		switch (bit) {
 		case ADIS16475_SCAN_TEMP:
 			st->data[i++] = buffer[offset];
+			/*
+			 * The temperature channel has 16-bit storage size.
+			 * We need to perform the padding to have the buffer
+			 * elements naturally aligned in case there are any
+			 * 32-bit storage size channels enabled which have a
+			 * scan index higher than the temperature channel scan
+			 * index.
+			 */
+			if (*indio_dev->active_scan_mask & GENMASK(ADIS16475_SCAN_DELTVEL_Z, ADIS16475_SCAN_DELTANG_X))
+				st->data[i++] = 0;
 			break;
+		case ADIS16475_SCAN_DELTANG_X ... ADIS16475_SCAN_DELTVEL_Z:
+			buff_offset = ADIS16475_SCAN_DELTANG_X;
+			fallthrough;
 		case ADIS16475_SCAN_GYRO_X ... ADIS16475_SCAN_ACCEL_Z:
 			/*
 			 * The first 2 bytes on the received data are the
@@ -1081,18 +1243,18 @@ static irqreturn_t adis16475_trigger_handler(int irq, void *p)
 			 */
 			if (st->burst32) {
 				/* upper 16 */
-				st->data[i++] = buffer[bit * 2 + 2];
+				st->data[i++] = buffer[(bit - buff_offset) * 2 + 2];
 				/* lower 16 */
-				st->data[i++] = buffer[bit * 2 + 1];
+				st->data[i++] = buffer[(bit - buff_offset) * 2 + 1];
 			} else {
-				st->data[i++] = buffer[bit + 1];
+				st->data[i++] = buffer[(bit - buff_offset) + 1];
 				/*
 				 * Don't bother in doing the manual read if the
 				 * device supports burst32. burst32 will be
 				 * enabled in the next call to
 				 * adis16475_burst32_check()...
 				 */
-				if (st->lsb_flag && !st->info->has_burst32) {
+				if (st->lsb_flag && !(st->info->flags & ADIS16475_HAS_BURST32)) {
 					u16 val = 0;
 					const u32 reg = ADIS16475_REG_X_GYRO_L +
 						bit * 4;
diff --git a/drivers/iio/imu/bno055/Kconfig b/drivers/iio/imu/bno055/Kconfig
index 83e53acfbe..c7f5866a17 100644
--- a/drivers/iio/imu/bno055/Kconfig
+++ b/drivers/iio/imu/bno055/Kconfig
@@ -8,6 +8,7 @@ config BOSCH_BNO055
 config BOSCH_BNO055_SERIAL
 	tristate "Bosch BNO055 attached via UART"
 	depends on SERIAL_DEV_BUS
+	select REGMAP
 	select BOSCH_BNO055
 	help
 	  Enable this to support Bosch BNO055 IMUs attached via UART.
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_aux.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_aux.c
index 7327e5723f..8a7f291190 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_aux.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_aux.c
@@ -71,6 +71,19 @@ int inv_mpu_aux_init(const struct inv_mpu6050_state *st)
 	unsigned int val;
 	int ret;
 
+	/*
+	 * Code based on the vendor Linux kernel v3.0,
+	 * the exact meaning is unknown.
+	 */
+	if (st->chip_type == INV_MPU9150) {
+		unsigned int mask = BIT(7);
+
+		val = st->level_shifter ? mask : 0;
+		ret = regmap_update_bits(st->map, 0x1, mask, val);
+		if (ret)
+			return ret;
+	}
+
 	/* configure i2c master */
 	val = INV_MPU6050_BITS_I2C_MST_CLK_400KHZ |
 			INV_MPU6050_BIT_WAIT_FOR_ES;
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index a9a5fb266e..6b034dccc3 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -17,6 +17,7 @@
 #include <linux/regulator/consumer.h>
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 
 #include <linux/iio/common/inv_sensors_timestamp.h>
 #include <linux/iio/iio.h>
@@ -1495,6 +1496,8 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,
 	st->irq = irq;
 	st->map = regmap;
 
+	st->level_shifter = device_property_read_bool(dev,
+						      "invensense,level-shifter");
 	pdata = dev_get_platdata(dev);
 	if (!pdata) {
 		result = iio_read_mount_matrix(dev, &st->orientation);
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
index ed5a96e78d..5950e2419e 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
@@ -203,6 +203,7 @@ struct inv_mpu6050_state {
 	s32 magn_raw_to_gauss[3];
 	struct iio_mount_matrix magn_orient;
 	unsigned int suspended_sensors;
+	bool level_shifter;
 	u8 *data;
 };
 
@@ -464,7 +465,6 @@ int inv_mpu6050_probe_trigger(struct iio_dev *indio_dev, int irq_type);
 int inv_mpu6050_prepare_fifo(struct inv_mpu6050_state *st, bool enable);
 int inv_mpu6050_switch_engine(struct inv_mpu6050_state *st, bool en,
 			      unsigned int mask);
-int inv_mpu6050_write_reg(struct inv_mpu6050_state *st, int reg, u8 val);
 int inv_mpu_acpi_create_mux_client(struct i2c_client *client);
 void inv_mpu_acpi_delete_mux_client(struct i2c_client *client);
 int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index d752e9c049..e6d3d07a4c 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -90,6 +90,10 @@ static const char * const iio_chan_type_name_spec[] = {
 	[IIO_POSITIONRELATIVE]  = "positionrelative",
 	[IIO_PHASE] = "phase",
 	[IIO_MASSCONCENTRATION] = "massconcentration",
+	[IIO_DELTA_ANGL] = "deltaangl",
+	[IIO_DELTA_VELOCITY] = "deltavelocity",
+	[IIO_COLORTEMP] = "colortemp",
+	[IIO_CHROMATICITY] = "chromaticity",
 };
 
 static const char * const iio_modifier_names[] = {
@@ -1577,10 +1581,13 @@ static int iio_device_register_sysfs(struct iio_dev *indio_dev)
 	ret = iio_device_register_sysfs_group(indio_dev,
 					      &iio_dev_opaque->chan_attr_group);
 	if (ret)
-		goto error_clear_attrs;
+		goto error_free_chan_attrs;
 
 	return 0;
 
+error_free_chan_attrs:
+	kfree(iio_dev_opaque->chan_attr_group.attrs);
+	iio_dev_opaque->chan_attr_group.attrs = NULL;
 error_clear_attrs:
 	iio_free_chan_devattr_list(&iio_dev_opaque->channel_attr_list);
 
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 19f7a91157..910c1f14ab 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -355,6 +355,21 @@ static ssize_t iio_ev_value_store(struct device *dev,
 	return len;
 }
 
+static ssize_t iio_ev_label_show(struct device *dev,
+				 struct device_attribute *attr,
+				 char *buf)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
+
+	if (indio_dev->info->read_event_label)
+		return indio_dev->info->read_event_label(indio_dev,
+				 this_attr->c, iio_ev_attr_type(this_attr),
+				 iio_ev_attr_dir(this_attr), buf);
+
+	return -EINVAL;
+}
+
 static int iio_device_add_event(struct iio_dev *indio_dev,
 	const struct iio_chan_spec *chan, unsigned int spec_index,
 	enum iio_event_type type, enum iio_event_direction dir,
@@ -411,6 +426,41 @@ static int iio_device_add_event(struct iio_dev *indio_dev,
 	return attrcount;
 }
 
+static int iio_device_add_event_label(struct iio_dev *indio_dev,
+				      const struct iio_chan_spec *chan,
+				      unsigned int spec_index,
+				      enum iio_event_type type,
+				      enum iio_event_direction dir)
+{
+	struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
+	char *postfix;
+	int ret;
+
+	if (!indio_dev->info->read_event_label)
+		return 0;
+
+	if (dir != IIO_EV_DIR_NONE)
+		postfix = kasprintf(GFP_KERNEL, "%s_%s_label",
+				iio_ev_type_text[type],
+				iio_ev_dir_text[dir]);
+	else
+		postfix = kasprintf(GFP_KERNEL, "%s_label",
+				iio_ev_type_text[type]);
+	if (postfix == NULL)
+		return -ENOMEM;
+
+	ret = __iio_add_chan_devattr(postfix, chan, &iio_ev_label_show, NULL,
+				spec_index, IIO_SEPARATE, &indio_dev->dev, NULL,
+				&iio_dev_opaque->event_interface->dev_attr_list);
+
+	kfree(postfix);
+
+	if (ret < 0)
+		return ret;
+
+	return 1;
+}
+
 static int iio_device_add_event_sysfs(struct iio_dev *indio_dev,
 	struct iio_chan_spec const *chan)
 {
@@ -448,6 +498,11 @@ static int iio_device_add_event_sysfs(struct iio_dev *indio_dev,
 		if (ret < 0)
 			return ret;
 		attrcount += ret;
+
+		ret = iio_device_add_event_label(indio_dev, chan, i, type, dir);
+		if (ret < 0)
+			return ret;
+		attrcount += ret;
 	}
 	ret = attrcount;
 	return ret;
diff --git a/drivers/iio/light/cm3605.c b/drivers/iio/light/cm3605.c
index e7f0b81b7f..22a63a89f2 100644
--- a/drivers/iio/light/cm3605.c
+++ b/drivers/iio/light/cm3605.c
@@ -266,7 +266,7 @@ out_disable_vdd:
 	return ret;
 }
 
-static int cm3605_remove(struct platform_device *pdev)
+static void cm3605_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct cm3605 *cm3605 = iio_priv(indio_dev);
@@ -276,8 +276,6 @@ static int cm3605_remove(struct platform_device *pdev)
 	gpiod_set_value_cansleep(cm3605->aset, 0);
 	iio_device_unregister(indio_dev);
 	regulator_disable(cm3605->vdd);
-
-	return 0;
 }
 
 static int cm3605_pm_suspend(struct device *dev)
@@ -320,7 +318,7 @@ static struct platform_driver cm3605_driver = {
 		.pm = pm_sleep_ptr(&cm3605_dev_pm_ops),
 	},
 	.probe = cm3605_probe,
-	.remove = cm3605_remove,
+	.remove_new = cm3605_remove,
 };
 module_platform_driver(cm3605_driver);
 
diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
index eb1aedad7e..b6c4bef2a7 100644
--- a/drivers/iio/light/hid-sensor-als.c
+++ b/drivers/iio/light/hid-sensor-als.c
@@ -24,7 +24,7 @@ enum {
 struct als_state {
 	struct hid_sensor_hub_callbacks callbacks;
 	struct hid_sensor_common common_attributes;
-	struct hid_sensor_hub_attribute_info als_illum;
+	struct hid_sensor_hub_attribute_info als[CHANNEL_SCAN_INDEX_MAX];
 	struct {
 		u32 illum[CHANNEL_SCAN_INDEX_MAX];
 		u64 timestamp __aligned(8);
@@ -99,8 +99,8 @@ static int als_read_raw(struct iio_dev *indio_dev,
 		switch (chan->scan_index) {
 		case  CHANNEL_SCAN_INDEX_INTENSITY:
 		case  CHANNEL_SCAN_INDEX_ILLUM:
-			report_id = als_state->als_illum.report_id;
-			min = als_state->als_illum.logical_minimum;
+			report_id = als_state->als[chan->scan_index].report_id;
+			min = als_state->als[chan->scan_index].logical_minimum;
 			address = HID_USAGE_SENSOR_LIGHT_ILLUM;
 			break;
 		default:
@@ -226,6 +226,7 @@ static int als_capture_sample(struct hid_sensor_hub_device *hsdev,
 	case HID_USAGE_SENSOR_TIME_TIMESTAMP:
 		als_state->timestamp = hid_sensor_convert_timestamp(&als_state->common_attributes,
 								    *(s64 *)raw_data);
+		ret = 0;
 		break;
 	default:
 		break;
@@ -242,22 +243,24 @@ static int als_parse_report(struct platform_device *pdev,
 				struct als_state *st)
 {
 	int ret;
+	int i;
+
+	for (i = 0; i <= CHANNEL_SCAN_INDEX_ILLUM; ++i) {
+		ret = sensor_hub_input_get_attribute_info(hsdev,
+						HID_INPUT_REPORT,
+						usage_id,
+						HID_USAGE_SENSOR_LIGHT_ILLUM,
+						&st->als[i]);
+		if (ret < 0)
+			return ret;
+		als_adjust_channel_bit_mask(channels, i, st->als[i].size);
+
+		dev_dbg(&pdev->dev, "als %x:%x\n", st->als[i].index,
+			st->als[i].report_id);
+	}
 
-	ret = sensor_hub_input_get_attribute_info(hsdev, HID_INPUT_REPORT,
-			usage_id,
-			HID_USAGE_SENSOR_LIGHT_ILLUM,
-			&st->als_illum);
-	if (ret < 0)
-		return ret;
-	als_adjust_channel_bit_mask(channels, CHANNEL_SCAN_INDEX_INTENSITY,
-				    st->als_illum.size);
-	als_adjust_channel_bit_mask(channels, CHANNEL_SCAN_INDEX_ILLUM,
-					st->als_illum.size);
-
-	dev_dbg(&pdev->dev, "als %x:%x\n", st->als_illum.index,
-			st->als_illum.report_id);
-
-	st->scale_precision = hid_sensor_format_scale(usage_id, &st->als_illum,
+	st->scale_precision = hid_sensor_format_scale(usage_id,
+				&st->als[CHANNEL_SCAN_INDEX_INTENSITY],
 				&st->scale_pre_decml, &st->scale_post_decml);
 
 	return ret;
@@ -347,7 +350,7 @@ error_remove_trigger:
 }
 
 /* Function to deinitialize the processing for usage id */
-static int hid_als_remove(struct platform_device *pdev)
+static void hid_als_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
@@ -356,8 +359,6 @@ static int hid_als_remove(struct platform_device *pdev)
 	sensor_hub_remove_callback(hsdev, hsdev->usage);
 	iio_device_unregister(indio_dev);
 	hid_sensor_remove_trigger(indio_dev, &als_state->common_attributes);
-
-	return 0;
 }
 
 static const struct platform_device_id hid_als_ids[] = {
@@ -380,7 +381,7 @@ static struct platform_driver hid_als_platform_driver = {
 		.pm	= &hid_sensor_pm_ops,
 	},
 	.probe		= hid_als_probe,
-	.remove		= hid_als_remove,
+	.remove_new	= hid_als_remove,
 };
 module_platform_driver(hid_als_platform_driver);
 
diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c
index a47591e1ba..26c481d299 100644
--- a/drivers/iio/light/hid-sensor-prox.c
+++ b/drivers/iio/light/hid-sensor-prox.c
@@ -313,7 +313,7 @@ error_remove_trigger:
 }
 
 /* Function to deinitialize the processing for usage id */
-static int hid_prox_remove(struct platform_device *pdev)
+static void hid_prox_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
@@ -322,8 +322,6 @@ static int hid_prox_remove(struct platform_device *pdev)
 	sensor_hub_remove_callback(hsdev, hsdev->usage);
 	iio_device_unregister(indio_dev);
 	hid_sensor_remove_trigger(indio_dev, &prox_state->common_attributes);
-
-	return 0;
 }
 
 static const struct platform_device_id hid_prox_ids[] = {
@@ -346,7 +344,7 @@ static struct platform_driver hid_prox_platform_driver = {
 		.pm	= &hid_sensor_pm_ops,
 	},
 	.probe		= hid_prox_probe,
-	.remove		= hid_prox_remove,
+	.remove_new	= hid_prox_remove,
 };
 module_platform_driver(hid_prox_platform_driver);
 
diff --git a/drivers/iio/light/lm3533-als.c b/drivers/iio/light/lm3533-als.c
index 827bc25269..7800f7fa51 100644
--- a/drivers/iio/light/lm3533-als.c
+++ b/drivers/iio/light/lm3533-als.c
@@ -895,7 +895,7 @@ err_free_irq:
 	return ret;
 }
 
-static int lm3533_als_remove(struct platform_device *pdev)
+static void lm3533_als_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct lm3533_als *als = iio_priv(indio_dev);
@@ -905,8 +905,6 @@ static int lm3533_als_remove(struct platform_device *pdev)
 	lm3533_als_disable(als);
 	if (als->irq)
 		free_irq(als->irq, indio_dev);
-
-	return 0;
 }
 
 static struct platform_driver lm3533_als_driver = {
@@ -914,7 +912,7 @@ static struct platform_driver lm3533_als_driver = {
 		.name	= "lm3533-als",
 	},
 	.probe		= lm3533_als_probe,
-	.remove		= lm3533_als_remove,
+	.remove_new	= lm3533_als_remove,
 };
 module_platform_driver(lm3533_als_driver);
 
diff --git a/drivers/iio/light/opt4001.c b/drivers/iio/light/opt4001.c
index 502946bf9f..6cf60151b3 100644
--- a/drivers/iio/light/opt4001.c
+++ b/drivers/iio/light/opt4001.c
@@ -412,7 +412,7 @@ static int opt4001_probe(struct i2c_client *client)
 	if (dev_id != OPT4001_DEVICE_ID_VAL)
 		dev_warn(&client->dev, "Device ID: %#04x unknown\n", dev_id);
 
-	chip->chip_info = device_get_match_data(&client->dev);
+	chip->chip_info = i2c_get_match_data(client);
 
 	indio_dev->channels = opt4001_channels;
 	indio_dev->num_channels = ARRAY_SIZE(opt4001_channels);
diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index eb706d0bf7..dd466c5fa6 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -204,7 +204,6 @@ static long ak09912_raw_to_gauss(u16 data)
 
 /* Compatible Asahi Kasei Compass parts */
 enum asahi_compass_chipset {
-	AKXXXX		= 0,
 	AK8975,
 	AK8963,
 	AK09911,
@@ -248,7 +247,7 @@ struct ak_def {
 };
 
 static const struct ak_def ak_def_array[] = {
-	{
+	[AK8975] = {
 		.type = AK8975,
 		.raw_to_gauss = ak8975_raw_to_gauss,
 		.range = 4096,
@@ -273,7 +272,7 @@ static const struct ak_def ak_def_array[] = {
 			AK8975_REG_HYL,
 			AK8975_REG_HZL},
 	},
-	{
+	[AK8963] = {
 		.type = AK8963,
 		.raw_to_gauss = ak8963_09911_raw_to_gauss,
 		.range = 8190,
@@ -298,7 +297,7 @@ static const struct ak_def ak_def_array[] = {
 			AK8975_REG_HYL,
 			AK8975_REG_HZL},
 	},
-	{
+	[AK09911] = {
 		.type = AK09911,
 		.raw_to_gauss = ak8963_09911_raw_to_gauss,
 		.range = 8192,
@@ -323,7 +322,7 @@ static const struct ak_def ak_def_array[] = {
 			AK09912_REG_HYL,
 			AK09912_REG_HZL},
 	},
-	{
+	[AK09912] = {
 		.type = AK09912,
 		.raw_to_gauss = ak09912_raw_to_gauss,
 		.range = 32752,
@@ -348,7 +347,7 @@ static const struct ak_def ak_def_array[] = {
 			AK09912_REG_HYL,
 			AK09912_REG_HZL},
 	},
-	{
+	[AK09916] = {
 		.type = AK09916,
 		.raw_to_gauss = ak09912_raw_to_gauss,
 		.range = 32752,
@@ -812,18 +811,6 @@ static const struct iio_info ak8975_info = {
 	.read_raw = &ak8975_read_raw,
 };
 
-static const struct acpi_device_id ak_acpi_match[] = {
-	{"AK8975", AK8975},
-	{"AK8963", AK8963},
-	{"INVN6500", AK8963},
-	{"AK009911", AK09911},
-	{"AK09911", AK09911},
-	{"AKM9911", AK09911},
-	{"AK09912", AK09912},
-	{ }
-};
-MODULE_DEVICE_TABLE(acpi, ak_acpi_match);
-
 static void ak8975_fill_buffer(struct iio_dev *indio_dev)
 {
 	struct ak8975_data *data = iio_priv(indio_dev);
@@ -883,10 +870,7 @@ static int ak8975_probe(struct i2c_client *client)
 	struct iio_dev *indio_dev;
 	struct gpio_desc *eoc_gpiod;
 	struct gpio_desc *reset_gpiod;
-	const void *match;
-	unsigned int i;
 	int err;
-	enum asahi_compass_chipset chipset;
 	const char *name = NULL;
 
 	/*
@@ -928,27 +912,15 @@ static int ak8975_probe(struct i2c_client *client)
 		return err;
 
 	/* id will be NULL when enumerated via ACPI */
-	match = device_get_match_data(&client->dev);
-	if (match) {
-		chipset = (uintptr_t)match;
-		name = dev_name(&client->dev);
-	} else if (id) {
-		chipset = (enum asahi_compass_chipset)(id->driver_data);
-		name = id->name;
-	} else
-		return -ENOSYS;
-
-	for (i = 0; i < ARRAY_SIZE(ak_def_array); i++)
-		if (ak_def_array[i].type == chipset)
-			break;
-
-	if (i == ARRAY_SIZE(ak_def_array)) {
-		dev_err(&client->dev, "AKM device type unsupported: %d\n",
-			chipset);
+	data->def = i2c_get_match_data(client);
+	if (!data->def)
 		return -ENODEV;
-	}
 
-	data->def = &ak_def_array[i];
+	/* If enumerated via firmware node, fix the ABI */
+	if (dev_fwnode(&client->dev))
+		name = dev_name(&client->dev);
+	else
+		name = id->name;
 
 	/* Fetch the regulators */
 	data->vdd = devm_regulator_get(&client->dev, "vdd");
@@ -1076,29 +1048,40 @@ static int ak8975_runtime_resume(struct device *dev)
 static DEFINE_RUNTIME_DEV_PM_OPS(ak8975_dev_pm_ops, ak8975_runtime_suspend,
 				 ak8975_runtime_resume, NULL);
 
+static const struct acpi_device_id ak_acpi_match[] = {
+	{"AK8963", (kernel_ulong_t)&ak_def_array[AK8963] },
+	{"AK8975", (kernel_ulong_t)&ak_def_array[AK8975] },
+	{"AK009911", (kernel_ulong_t)&ak_def_array[AK09911] },
+	{"AK09911", (kernel_ulong_t)&ak_def_array[AK09911] },
+	{"AK09912", (kernel_ulong_t)&ak_def_array[AK09912] },
+	{"AKM9911", (kernel_ulong_t)&ak_def_array[AK09911] },
+	{"INVN6500", (kernel_ulong_t)&ak_def_array[AK8963] },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, ak_acpi_match);
+
 static const struct i2c_device_id ak8975_id[] = {
-	{"ak8975", AK8975},
-	{"ak8963", AK8963},
-	{"AK8963", AK8963},
-	{"ak09911", AK09911},
-	{"ak09912", AK09912},
-	{"ak09916", AK09916},
+	{"AK8963", (kernel_ulong_t)&ak_def_array[AK8963] },
+	{"ak8963", (kernel_ulong_t)&ak_def_array[AK8963] },
+	{"ak8975", (kernel_ulong_t)&ak_def_array[AK8975] },
+	{"ak09911", (kernel_ulong_t)&ak_def_array[AK09911] },
+	{"ak09912", (kernel_ulong_t)&ak_def_array[AK09912] },
+	{"ak09916", (kernel_ulong_t)&ak_def_array[AK09916] },
 	{}
 };
-
 MODULE_DEVICE_TABLE(i2c, ak8975_id);
 
 static const struct of_device_id ak8975_of_match[] = {
-	{ .compatible = "asahi-kasei,ak8975", },
-	{ .compatible = "ak8975", },
-	{ .compatible = "asahi-kasei,ak8963", },
-	{ .compatible = "ak8963", },
-	{ .compatible = "asahi-kasei,ak09911", },
-	{ .compatible = "ak09911", },
-	{ .compatible = "asahi-kasei,ak09912", },
-	{ .compatible = "ak09912", },
-	{ .compatible = "asahi-kasei,ak09916", },
-	{ .compatible = "ak09916", },
+	{ .compatible = "asahi-kasei,ak8975", .data = &ak_def_array[AK8975] },
+	{ .compatible = "ak8975", .data = &ak_def_array[AK8975] },
+	{ .compatible = "asahi-kasei,ak8963", .data = &ak_def_array[AK8963] },
+	{ .compatible = "ak8963", .data = &ak_def_array[AK8963] },
+	{ .compatible = "asahi-kasei,ak09911", .data = &ak_def_array[AK09911] },
+	{ .compatible = "ak09911", .data = &ak_def_array[AK09911] },
+	{ .compatible = "asahi-kasei,ak09912", .data = &ak_def_array[AK09912] },
+	{ .compatible = "ak09912", .data = &ak_def_array[AK09912] },
+	{ .compatible = "asahi-kasei,ak09916", .data = &ak_def_array[AK09916] },
+	{ .compatible = "ak09916", .data = &ak_def_array[AK09916] },
 	{}
 };
 MODULE_DEVICE_TABLE(of, ak8975_of_match);
diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
index e85a3a8eea..5c795a430d 100644
--- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c
+++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
@@ -547,7 +547,7 @@ error_remove_trigger:
 }
 
 /* Function to deinitialize the processing for usage id */
-static int hid_magn_3d_remove(struct platform_device *pdev)
+static void hid_magn_3d_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
@@ -556,8 +556,6 @@ static int hid_magn_3d_remove(struct platform_device *pdev)
 	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_COMPASS_3D);
 	iio_device_unregister(indio_dev);
 	hid_sensor_remove_trigger(indio_dev, &magn_state->magn_flux_attributes);
-
-	return 0;
 }
 
 static const struct platform_device_id hid_magn_3d_ids[] = {
@@ -576,7 +574,7 @@ static struct platform_driver hid_magn_3d_platform_driver = {
 		.pm	= &hid_sensor_pm_ops,
 	},
 	.probe		= hid_magn_3d_probe,
-	.remove		= hid_magn_3d_remove,
+	.remove_new	= hid_magn_3d_remove,
 };
 module_platform_driver(hid_magn_3d_platform_driver);
 
diff --git a/drivers/iio/magnetometer/rm3100-core.c b/drivers/iio/magnetometer/rm3100-core.c
index 6993820445..42b70cd42b 100644
--- a/drivers/iio/magnetometer/rm3100-core.c
+++ b/drivers/iio/magnetometer/rm3100-core.c
@@ -530,6 +530,7 @@ int rm3100_common_probe(struct device *dev, struct regmap *regmap, int irq)
 	struct rm3100_data *data;
 	unsigned int tmp;
 	int ret;
+	int samp_rate_index;
 
 	indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
 	if (!indio_dev)
@@ -586,9 +587,14 @@ int rm3100_common_probe(struct device *dev, struct regmap *regmap, int irq)
 	ret = regmap_read(regmap, RM3100_REG_TMRC, &tmp);
 	if (ret < 0)
 		return ret;
+
+	samp_rate_index = tmp - RM3100_TMRC_OFFSET;
+	if (samp_rate_index < 0 || samp_rate_index >=  RM3100_SAMP_NUM) {
+		dev_err(dev, "The value read from RM3100_REG_TMRC is invalid!\n");
+		return -EINVAL;
+	}
 	/* Initializing max wait time, which is double conversion time. */
-	data->conversion_time = rm3100_samp_rates[tmp - RM3100_TMRC_OFFSET][2]
-				* 2;
+	data->conversion_time = rm3100_samp_rates[samp_rate_index][2] * 2;
 
 	/* Cycle count values may not be what we want. */
 	if ((tmp - RM3100_TMRC_OFFSET) == 0)
diff --git a/drivers/iio/magnetometer/yamaha-yas530.c b/drivers/iio/magnetometer/yamaha-yas530.c
index c5e485bfc6..7b041bb386 100644
--- a/drivers/iio/magnetometer/yamaha-yas530.c
+++ b/drivers/iio/magnetometer/yamaha-yas530.c
@@ -1434,9 +1434,7 @@ static int yas5xx_probe(struct i2c_client *i2c)
 		goto assert_reset;
 	}
 
-	ci = device_get_match_data(dev);
-	if (!ci)
-		ci = (const struct yas5xx_chip_info *)id->driver_data;
+	ci = i2c_get_match_data(i2c);
 	yas5xx->chip_info = ci;
 
 	ret = regmap_read(yas5xx->map, YAS5XX_DEVICE_ID, &id_check);
diff --git a/drivers/iio/orientation/hid-sensor-incl-3d.c b/drivers/iio/orientation/hid-sensor-incl-3d.c
index ba5b581d5b..8943d5c78b 100644
--- a/drivers/iio/orientation/hid-sensor-incl-3d.c
+++ b/drivers/iio/orientation/hid-sensor-incl-3d.c
@@ -383,7 +383,7 @@ error_remove_trigger:
 }
 
 /* Function to deinitialize the processing for usage id */
-static int hid_incl_3d_remove(struct platform_device *pdev)
+static void hid_incl_3d_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
@@ -392,8 +392,6 @@ static int hid_incl_3d_remove(struct platform_device *pdev)
 	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_INCLINOMETER_3D);
 	iio_device_unregister(indio_dev);
 	hid_sensor_remove_trigger(indio_dev, &incl_state->common_attributes);
-
-	return 0;
 }
 
 static const struct platform_device_id hid_incl_3d_ids[] = {
@@ -412,7 +410,7 @@ static struct platform_driver hid_incl_3d_platform_driver = {
 		.pm	= &hid_sensor_pm_ops,
 	},
 	.probe		= hid_incl_3d_probe,
-	.remove		= hid_incl_3d_remove,
+	.remove_new	= hid_incl_3d_remove,
 };
 module_platform_driver(hid_incl_3d_platform_driver);
 
diff --git a/drivers/iio/orientation/hid-sensor-rotation.c b/drivers/iio/orientation/hid-sensor-rotation.c
index a033699910..5e8cadd517 100644
--- a/drivers/iio/orientation/hid-sensor-rotation.c
+++ b/drivers/iio/orientation/hid-sensor-rotation.c
@@ -327,7 +327,7 @@ error_remove_trigger:
 }
 
 /* Function to deinitialize the processing for usage id */
-static int hid_dev_rot_remove(struct platform_device *pdev)
+static void hid_dev_rot_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
@@ -336,8 +336,6 @@ static int hid_dev_rot_remove(struct platform_device *pdev)
 	sensor_hub_remove_callback(hsdev, hsdev->usage);
 	iio_device_unregister(indio_dev);
 	hid_sensor_remove_trigger(indio_dev, &rot_state->common_attributes);
-
-	return 0;
 }
 
 static const struct platform_device_id hid_dev_rot_ids[] = {
@@ -364,7 +362,7 @@ static struct platform_driver hid_dev_rot_platform_driver = {
 		.pm     = &hid_sensor_pm_ops,
 	},
 	.probe		= hid_dev_rot_probe,
-	.remove		= hid_dev_rot_remove,
+	.remove_new	= hid_dev_rot_remove,
 };
 module_platform_driver(hid_dev_rot_platform_driver);
 
diff --git a/drivers/iio/position/hid-sensor-custom-intel-hinge.c b/drivers/iio/position/hid-sensor-custom-intel-hinge.c
index 07c30d2172..76e173850a 100644
--- a/drivers/iio/position/hid-sensor-custom-intel-hinge.c
+++ b/drivers/iio/position/hid-sensor-custom-intel-hinge.c
@@ -342,7 +342,7 @@ error_remove_trigger:
 }
 
 /* Function to deinitialize the processing for usage id */
-static int hid_hinge_remove(struct platform_device *pdev)
+static void hid_hinge_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
@@ -351,8 +351,6 @@ static int hid_hinge_remove(struct platform_device *pdev)
 	iio_device_unregister(indio_dev);
 	sensor_hub_remove_callback(hsdev, hsdev->usage);
 	hid_sensor_remove_trigger(indio_dev, &st->common_attributes);
-
-	return 0;
 }
 
 static const struct platform_device_id hid_hinge_ids[] = {
@@ -371,7 +369,7 @@ static struct platform_driver hid_hinge_platform_driver = {
 		.pm	= &hid_sensor_pm_ops,
 	},
 	.probe		= hid_hinge_probe,
-	.remove		= hid_hinge_remove,
+	.remove_new	= hid_hinge_remove,
 };
 module_platform_driver(hid_hinge_platform_driver);
 
diff --git a/drivers/iio/potentiometer/ad5110.c b/drivers/iio/potentiometer/ad5110.c
index 991e745c4f..aaf02cc7ae 100644
--- a/drivers/iio/potentiometer/ad5110.c
+++ b/drivers/iio/potentiometer/ad5110.c
@@ -278,14 +278,19 @@ static const struct of_device_id ad5110_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, ad5110_of_match);
 
+#define AD5110_ID_TABLE(_name, cfg) {				\
+	.name = _name,						\
+	.driver_data = (kernel_ulong_t)&ad5110_cfg[cfg],	\
+}
+
 static const struct i2c_device_id ad5110_id[] = {
-	{ "ad5110-10", AD5110_10 },
-	{ "ad5110-80", AD5110_80 },
-	{ "ad5112-05", AD5112_05 },
-	{ "ad5112-10", AD5112_10 },
-	{ "ad5112-80", AD5112_80 },
-	{ "ad5114-10", AD5114_10 },
-	{ "ad5114-80", AD5114_80 },
+	AD5110_ID_TABLE("ad5110-10", AD5110_10),
+	AD5110_ID_TABLE("ad5110-80", AD5110_80),
+	AD5110_ID_TABLE("ad5112-05", AD5112_05),
+	AD5110_ID_TABLE("ad5112-10", AD5112_10),
+	AD5110_ID_TABLE("ad5112-80", AD5112_80),
+	AD5110_ID_TABLE("ad5114-10", AD5114_10),
+	AD5110_ID_TABLE("ad5114-80", AD5114_80),
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, ad5110_id);
@@ -305,7 +310,7 @@ static int ad5110_probe(struct i2c_client *client)
 	data->client = client;
 	mutex_init(&data->lock);
 	data->enable = 1;
-	data->cfg = device_get_match_data(dev);
+	data->cfg = i2c_get_match_data(client);
 
 	/* refresh RDAC register with EEPROM */
 	ret = ad5110_write(data, AD5110_RESET, 0);
diff --git a/drivers/iio/potentiometer/ds1803.c b/drivers/iio/potentiometer/ds1803.c
index fc183e0790..e0526dd0e3 100644
--- a/drivers/iio/potentiometer/ds1803.c
+++ b/drivers/iio/potentiometer/ds1803.c
@@ -204,7 +204,6 @@ static const struct iio_info ds1803_info = {
 
 static int ds1803_probe(struct i2c_client *client)
 {
-	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	struct device *dev = &client->dev;
 	struct ds1803_data *data;
 	struct iio_dev *indio_dev;
@@ -217,9 +216,7 @@ static int ds1803_probe(struct i2c_client *client)
 
 	data = iio_priv(indio_dev);
 	data->client = client;
-	data->cfg = device_get_match_data(dev);
-	if (!data->cfg)
-		data->cfg = &ds1803_cfg[id->driver_data];
+	data->cfg = i2c_get_match_data(client);
 
 	indio_dev->info = &ds1803_info;
 	indio_dev->channels = data->cfg->channels;
@@ -239,10 +236,10 @@ static const struct of_device_id ds1803_dt_ids[] = {
 MODULE_DEVICE_TABLE(of, ds1803_dt_ids);
 
 static const struct i2c_device_id ds1803_id[] = {
-	{ "ds1803-010", DS1803_010 },
-	{ "ds1803-050", DS1803_050 },
-	{ "ds1803-100", DS1803_100 },
-	{ "ds3502", DS3502 },
+	{ "ds1803-010", (kernel_ulong_t)&ds1803_cfg[DS1803_010] },
+	{ "ds1803-050", (kernel_ulong_t)&ds1803_cfg[DS1803_050] },
+	{ "ds1803-100", (kernel_ulong_t)&ds1803_cfg[DS1803_100] },
+	{ "ds3502", (kernel_ulong_t)&ds1803_cfg[DS3502] },
 	{}
 };
 MODULE_DEVICE_TABLE(i2c, ds1803_id);
diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig
index 7b4c2af328..95efa32e42 100644
--- a/drivers/iio/pressure/Kconfig
+++ b/drivers/iio/pressure/Kconfig
@@ -16,6 +16,15 @@ config ABP060MG
 	  To compile this driver as a module, choose M here: the module
 	  will be called abp060mg.
 
+config ROHM_BM1390
+	tristate "ROHM BM1390GLV-Z pressure sensor driver"
+	depends on I2C
+	help
+	  Support for the ROHM BM1390 pressure sensor. The BM1390GLV-Z
+	  can measure pressures ranging from 300 hPa to 1300 hPa with
+	  configurable measurement averaging and internal FIFO. The
+	  sensor does also provide temperature measurements.
+
 config BMP280
 	tristate "Bosch Sensortec BMP180/BMP280/BMP380/BMP580 pressure sensor driver"
 	depends on (I2C || SPI_MASTER)
diff --git a/drivers/iio/pressure/Makefile b/drivers/iio/pressure/Makefile
index c90f77210e..436aec7e65 100644
--- a/drivers/iio/pressure/Makefile
+++ b/drivers/iio/pressure/Makefile
@@ -5,6 +5,7 @@
 
 # When adding new entries keep the list in alphabetical order
 obj-$(CONFIG_ABP060MG) += abp060mg.o
+obj-$(CONFIG_ROHM_BM1390) += rohm-bm1390.o
 obj-$(CONFIG_BMP280) += bmp280.o
 bmp280-objs := bmp280-core.o bmp280-regmap.o
 obj-$(CONFIG_BMP280_I2C) += bmp280-i2c.o
diff --git a/drivers/iio/pressure/bmp280-spi.c b/drivers/iio/pressure/bmp280-spi.c
index 1dff9bb7c4..967de99c1b 100644
--- a/drivers/iio/pressure/bmp280-spi.c
+++ b/drivers/iio/pressure/bmp280-spi.c
@@ -91,6 +91,7 @@ static const struct of_device_id bmp280_of_spi_match[] = {
 MODULE_DEVICE_TABLE(of, bmp280_of_spi_match);
 
 static const struct spi_device_id bmp280_spi_id[] = {
+	{ "bmp085", (kernel_ulong_t)&bmp180_chip_info },
 	{ "bmp180", (kernel_ulong_t)&bmp180_chip_info },
 	{ "bmp181", (kernel_ulong_t)&bmp180_chip_info },
 	{ "bmp280", (kernel_ulong_t)&bmp280_chip_info },
diff --git a/drivers/iio/pressure/hid-sensor-press.c b/drivers/iio/pressure/hid-sensor-press.c
index a9215eb32d..956045e2db 100644
--- a/drivers/iio/pressure/hid-sensor-press.c
+++ b/drivers/iio/pressure/hid-sensor-press.c
@@ -323,7 +323,7 @@ error_remove_trigger:
 }
 
 /* Function to deinitialize the processing for usage id */
-static int hid_press_remove(struct platform_device *pdev)
+static void hid_press_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
@@ -332,8 +332,6 @@ static int hid_press_remove(struct platform_device *pdev)
 	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_PRESSURE);
 	iio_device_unregister(indio_dev);
 	hid_sensor_remove_trigger(indio_dev, &press_state->common_attributes);
-
-	return 0;
 }
 
 static const struct platform_device_id hid_press_ids[] = {
@@ -352,7 +350,7 @@ static struct platform_driver hid_press_platform_driver = {
 		.pm	= &hid_sensor_pm_ops,
 	},
 	.probe		= hid_press_probe,
-	.remove		= hid_press_remove,
+	.remove_new	= hid_press_remove,
 };
 module_platform_driver(hid_press_platform_driver);
 
diff --git a/drivers/iio/pressure/ms5637.c b/drivers/iio/pressure/ms5637.c
index 9b3abffb72..ac30d76285 100644
--- a/drivers/iio/pressure/ms5637.c
+++ b/drivers/iio/pressure/ms5637.c
@@ -144,7 +144,6 @@ static const struct iio_info ms5637_info = {
 
 static int ms5637_probe(struct i2c_client *client)
 {
-	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	const struct ms_tp_data *data;
 	struct ms_tp_dev *dev_data;
 	struct iio_dev *indio_dev;
@@ -159,10 +158,7 @@ static int ms5637_probe(struct i2c_client *client)
 		return -EOPNOTSUPP;
 	}
 
-	if (id)
-		data = (const struct ms_tp_data *)id->driver_data;
-	else
-		data = device_get_match_data(&client->dev);
+	data = i2c_get_match_data(client);
 	if (!data)
 		return -EINVAL;
 
diff --git a/drivers/iio/pressure/rohm-bm1390.c b/drivers/iio/pressure/rohm-bm1390.c
new file mode 100644
index 0000000000..ccaa07a569
--- /dev/null
+++ b/drivers/iio/pressure/rohm-bm1390.c
@@ -0,0 +1,934 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * BM1390 ROHM pressure sensor
+ *
+ * Copyright (c) 2023, ROHM Semiconductor.
+ * https://fscdn.rohm.com/en/products/databook/datasheet/ic/sensor/pressure/bm1390glv-z-e.pdf
+ */
+
+#include <linux/bitfield.h>
+#include <linux/bits.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+
+#define BM1390_REG_MANUFACT_ID		0x0f
+#define BM1390_REG_PART_ID		0x10
+#define BM1390_REG_POWER		0x12
+#define BM1390_MASK_POWER		BIT(0)
+#define BM1390_POWER_ON			BM1390_MASK_POWER
+#define BM1390_POWER_OFF		0x00
+#define BM1390_REG_RESET		0x13
+#define BM1390_MASK_RESET		BIT(0)
+#define BM1390_RESET_RELEASE		BM1390_MASK_RESET
+#define BM1390_RESET			0x00
+#define BM1390_REG_MODE_CTRL		0x14
+#define BM1390_MASK_MEAS_MODE		GENMASK(1, 0)
+#define BM1390_MASK_DRDY_EN		BIT(4)
+#define BM1390_MASK_WMI_EN		BIT(2)
+#define BM1390_MASK_AVE_NUM		GENMASK(7, 5)
+
+/*
+ * Data-sheet states that when the IIR is used, the AVE_NUM must be set to
+ * value 110b
+ */
+#define BM1390_IIR_AVE_NUM		0x06
+#define BM1390_REG_FIFO_CTRL		0x15
+#define BM1390_MASK_IIR_MODE		GENMASK(1, 0)
+#define BM1390_IIR_MODE_OFF		0x0
+#define BM1390_IIR_MODE_WEAK		0x1
+#define BM1390_IIR_MODE_MID		0x2
+#define BM1390_IIR_MODE_STRONG		0x3
+
+#define BM1390_MASK_FIFO_LEN		BIT(6)
+#define BM1390_MASK_FIFO_EN		BIT(7)
+#define BM1390_WMI_MIN			2
+#define BM1390_WMI_MAX			3
+
+#define BM1390_REG_FIFO_LVL		0x18
+#define BM1390_MASK_FIFO_LVL		GENMASK(2, 0)
+#define BM1390_REG_STATUS		0x19
+#define BM1390_REG_PRESSURE_BASE	0x1a
+#define BM1390_REG_TEMP_HI		0x1d
+#define BM1390_REG_TEMP_LO		0x1e
+#define BM1390_MAX_REGISTER		BM1390_REG_TEMP_LO
+
+#define BM1390_ID			0x34
+
+/* Regmap configs */
+static const struct regmap_range bm1390_volatile_ranges[] = {
+	{
+		.range_min = BM1390_REG_STATUS,
+		.range_max = BM1390_REG_STATUS,
+	},
+	{
+		.range_min = BM1390_REG_FIFO_LVL,
+		.range_max = BM1390_REG_TEMP_LO,
+	},
+};
+
+static const struct regmap_access_table bm1390_volatile_regs = {
+	.yes_ranges = &bm1390_volatile_ranges[0],
+	.n_yes_ranges = ARRAY_SIZE(bm1390_volatile_ranges),
+};
+
+static const struct regmap_range bm1390_precious_ranges[] = {
+	{
+		.range_min = BM1390_REG_STATUS,
+		.range_max = BM1390_REG_STATUS,
+	},
+};
+
+static const struct regmap_access_table bm1390_precious_regs = {
+	.yes_ranges = &bm1390_precious_ranges[0],
+	.n_yes_ranges = ARRAY_SIZE(bm1390_precious_ranges),
+};
+
+static const struct regmap_range bm1390_read_only_ranges[] = {
+	{
+		.range_min = BM1390_REG_MANUFACT_ID,
+		.range_max = BM1390_REG_PART_ID,
+	}, {
+		.range_min = BM1390_REG_FIFO_LVL,
+		.range_max = BM1390_REG_TEMP_LO,
+	},
+};
+
+static const struct regmap_access_table bm1390_ro_regs = {
+	.no_ranges = &bm1390_read_only_ranges[0],
+	.n_no_ranges = ARRAY_SIZE(bm1390_read_only_ranges),
+};
+
+static const struct regmap_range bm1390_noinc_read_ranges[] = {
+	{
+		.range_min = BM1390_REG_PRESSURE_BASE,
+		.range_max = BM1390_REG_TEMP_LO,
+	},
+};
+
+static const struct regmap_access_table bm1390_nir_regs = {
+	.yes_ranges = &bm1390_noinc_read_ranges[0],
+	.n_yes_ranges = ARRAY_SIZE(bm1390_noinc_read_ranges),
+};
+
+static const struct regmap_config bm1390_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.volatile_table = &bm1390_volatile_regs,
+	.wr_table = &bm1390_ro_regs,
+	.rd_noinc_table = &bm1390_nir_regs,
+	.precious_table = &bm1390_precious_regs,
+	.max_register = BM1390_MAX_REGISTER,
+	.cache_type = REGCACHE_RBTREE,
+	.disable_locking = true,
+};
+
+enum {
+	BM1390_STATE_SAMPLE,
+	BM1390_STATE_FIFO,
+};
+
+struct bm1390_data_buf {
+	u32 pressure;
+	__be16 temp;
+	s64 ts __aligned(8);
+};
+
+/* BM1390 has FIFO for 4 pressure samples */
+#define BM1390_FIFO_LENGTH	4
+
+struct bm1390_data {
+	s64 timestamp, old_timestamp;
+	struct iio_trigger *trig;
+	struct regmap *regmap;
+	struct device *dev;
+	struct bm1390_data_buf buf;
+	int irq;
+	unsigned int state;
+	bool trigger_enabled;
+	u8 watermark;
+
+	/* Prevent accessing sensor during FIFO read sequence */
+	struct mutex mutex;
+};
+
+enum {
+	BM1390_CHAN_PRESSURE,
+	BM1390_CHAN_TEMP,
+};
+
+static const struct iio_chan_spec bm1390_channels[] = {
+	{
+		.type = IIO_PRESSURE,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		/*
+		 * When IIR is used, we must fix amount of averaged samples.
+		 * Thus we don't allow setting oversampling ratio.
+		 */
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
+		.scan_index = BM1390_CHAN_PRESSURE,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 22,
+			.storagebits = 32,
+			.endianness = IIO_LE,
+		},
+	},
+	{
+		.type = IIO_TEMP,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
+		.scan_index = BM1390_CHAN_TEMP,
+		.scan_type = {
+			.sign = 's',
+			.realbits = 16,
+			.storagebits = 16,
+			.endianness = IIO_BE,
+		},
+	},
+	IIO_CHAN_SOFT_TIMESTAMP(2),
+};
+
+/*
+ * We can't skip reading the pressure because the watermark IRQ is acked
+ * only when the pressure data is read from the FIFO.
+ */
+static const unsigned long bm1390_scan_masks[] = {
+	BIT(BM1390_CHAN_PRESSURE),
+	BIT(BM1390_CHAN_PRESSURE) | BIT(BM1390_CHAN_TEMP),
+	0
+};
+
+static int bm1390_read_temp(struct bm1390_data *data, int *temp)
+{
+	__be16 temp_raw;
+	int ret;
+
+	ret = regmap_bulk_read(data->regmap, BM1390_REG_TEMP_HI, &temp_raw,
+			       sizeof(temp_raw));
+	if (ret)
+		return ret;
+
+	*temp = be16_to_cpu(temp_raw);
+
+	return 0;
+}
+
+static int bm1390_pressure_read(struct bm1390_data *data, u32 *pressure)
+{
+	/* Pressure data is in 3 8-bit registers */
+	u8 raw[3];
+	int ret;
+
+	ret = regmap_bulk_read(data->regmap, BM1390_REG_PRESSURE_BASE,
+			       raw, sizeof(raw));
+	if (ret < 0)
+		return ret;
+
+	*pressure = (u32)(raw[2] >> 2 | raw[1] << 6 | raw[0] << 14);
+
+	return 0;
+}
+
+ /* The enum values map directly to register bits */
+enum bm1390_meas_mode {
+	BM1390_MEAS_MODE_STOP = 0x0,
+	BM1390_MEAS_MODE_1SHOT = 0x1,
+	BM1390_MEAS_MODE_CONTINUOUS = 0x2,
+};
+
+static int bm1390_meas_set(struct bm1390_data *data, enum bm1390_meas_mode mode)
+{
+	return regmap_update_bits(data->regmap, BM1390_REG_MODE_CTRL,
+				  BM1390_MASK_MEAS_MODE, mode);
+}
+
+/*
+ * If the trigger is not used we just wait until the measurement has
+ * completed. The data-sheet says maximum measurement cycle (regardless
+ * the AVE_NUM) is 200 mS so let's just sleep at least that long. If speed
+ * is needed the trigger should be used.
+ */
+#define BM1390_MAX_MEAS_TIME_MS 205
+
+static int bm1390_read_data(struct bm1390_data *data,
+			struct iio_chan_spec const *chan, int *val, int *val2)
+{
+	int ret, warn;
+
+	mutex_lock(&data->mutex);
+	/*
+	 * We use 'continuous mode' even for raw read because according to the
+	 * data-sheet an one-shot mode can't be used with IIR filter.
+	 */
+	ret = bm1390_meas_set(data, BM1390_MEAS_MODE_CONTINUOUS);
+	if (ret)
+		goto unlock_out;
+
+	switch (chan->type) {
+	case IIO_PRESSURE:
+		msleep(BM1390_MAX_MEAS_TIME_MS);
+		ret = bm1390_pressure_read(data, val);
+		break;
+	case IIO_TEMP:
+		msleep(BM1390_MAX_MEAS_TIME_MS);
+		ret = bm1390_read_temp(data, val);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+	warn = bm1390_meas_set(data, BM1390_MEAS_MODE_STOP);
+	if (warn)
+		dev_warn(data->dev, "Failed to stop measurement (%d)\n", warn);
+unlock_out:
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static int bm1390_read_raw(struct iio_dev *idev,
+			   struct iio_chan_spec const *chan,
+			   int *val, int *val2, long mask)
+{
+	struct bm1390_data *data = iio_priv(idev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SCALE:
+		if (chan->type == IIO_TEMP) {
+			*val = 31;
+			*val2 = 250000;
+
+			return IIO_VAL_INT_PLUS_MICRO;
+		} else if (chan->type == IIO_PRESSURE) {
+			/*
+			 * pressure in hPa is register value divided by 2048.
+			 * This means kPa is 1/20480 times the register value,
+			 */
+			*val = 1;
+			*val2 = 2048;
+
+			return IIO_VAL_FRACTIONAL;
+		}
+
+		return -EINVAL;
+	case IIO_CHAN_INFO_RAW:
+		ret = iio_device_claim_direct_mode(idev);
+		if (ret)
+			return ret;
+
+		ret = bm1390_read_data(data, chan, val, val2);
+		iio_device_release_direct_mode(idev);
+		if (ret)
+			return ret;
+
+		return IIO_VAL_INT;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int __bm1390_fifo_flush(struct iio_dev *idev, unsigned int samples,
+			       s64 timestamp)
+{
+	/* BM1390_FIFO_LENGTH is small so we shouldn't run out of stack */
+	struct bm1390_data_buf buffer[BM1390_FIFO_LENGTH];
+	struct bm1390_data *data = iio_priv(idev);
+	int smp_lvl, ret, i, warn, dummy;
+	u64 sample_period;
+	__be16 temp = 0;
+
+	ret = regmap_read(data->regmap, BM1390_REG_FIFO_LVL, &smp_lvl);
+	if (ret)
+		return ret;
+
+	smp_lvl = FIELD_GET(BM1390_MASK_FIFO_LVL, smp_lvl);
+	if (!smp_lvl)
+		return 0;
+
+	if (smp_lvl > BM1390_FIFO_LENGTH) {
+		/*
+		 * The fifo holds maximum of 4 samples so valid values
+		 * should be 0, 1, 2, 3, 4 - rest are probably bit errors
+		 * in I2C line. Don't overflow if this happens.
+		 */
+		dev_err(data->dev, "bad FIFO level %d\n", smp_lvl);
+		smp_lvl = BM1390_FIFO_LENGTH;
+	}
+
+	sample_period = timestamp - data->old_timestamp;
+	do_div(sample_period, smp_lvl);
+
+	if (samples && smp_lvl > samples)
+		smp_lvl = samples;
+
+
+	/*
+	 * After some testing it appears that the temperature is not readable
+	 * until the FIFO access has been done after the WMI. Thus, we need
+	 * to read the all pressure values to memory and read the temperature
+	 * only after that.
+	 */
+	for (i = 0; i < smp_lvl; i++) {
+		/*
+		 * When we start reading data from the FIFO the sensor goes to
+		 * special FIFO reading mode. If any other register is accessed
+		 * during the FIFO read, samples can be dropped. Prevent access
+		 * until FIFO_LVL is read. We have mutex locked and we do also
+		 * go performing reading of FIFO_LVL even if this read fails.
+		 */
+		if (test_bit(BM1390_CHAN_PRESSURE, idev->active_scan_mask)) {
+			ret = bm1390_pressure_read(data, &buffer[i].pressure);
+			if (ret)
+				break;
+		}
+
+		/*
+		 * Old timestamp is either the previous sample IRQ time,
+		 * previous flush-time or, if this was first sample, the enable
+		 * time. When we add a sample period to that we should get the
+		 * best approximation of the time-stamp we are handling.
+		 *
+		 * Idea is to always keep the "old_timestamp" matching the
+		 * timestamp which we are currently handling.
+		 */
+		data->old_timestamp += sample_period;
+		buffer[i].ts = data->old_timestamp;
+	}
+	/* Reading the FIFO_LVL closes the FIFO access sequence */
+	warn = regmap_read(data->regmap, BM1390_REG_FIFO_LVL, &dummy);
+	if (warn)
+		dev_warn(data->dev, "Closing FIFO sequence failed\n");
+
+	if (ret)
+		return ret;
+
+	if (test_bit(BM1390_CHAN_TEMP, idev->active_scan_mask)) {
+		ret = regmap_bulk_read(data->regmap, BM1390_REG_TEMP_HI, &temp,
+				       sizeof(temp));
+		if (ret)
+			return ret;
+	}
+
+	if (ret)
+		return ret;
+
+	for (i = 0; i < smp_lvl; i++) {
+		buffer[i].temp = temp;
+		iio_push_to_buffers(idev, &buffer[i]);
+	}
+
+	return smp_lvl;
+}
+
+static int bm1390_fifo_flush(struct iio_dev *idev, unsigned int samples)
+{
+	struct bm1390_data *data = iio_priv(idev);
+	s64 timestamp;
+	int ret;
+
+	/*
+	 * If fifo_flush is being called from IRQ handler we know the stored
+	 * timestamp is fairly accurate for the last stored sample. 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.
+	 * 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.
+	 */
+
+	timestamp = iio_get_time_ns(idev);
+	mutex_lock(&data->mutex);
+	ret = __bm1390_fifo_flush(idev, samples, timestamp);
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static int bm1390_set_watermark(struct iio_dev *idev, unsigned int val)
+{
+	struct bm1390_data *data = iio_priv(idev);
+
+	if (val < BM1390_WMI_MIN || val > BM1390_WMI_MAX)
+		return -EINVAL;
+
+	mutex_lock(&data->mutex);
+	data->watermark = val;
+	mutex_unlock(&data->mutex);
+
+	return 0;
+}
+
+static const struct iio_info bm1390_noirq_info = {
+	.read_raw = &bm1390_read_raw,
+};
+
+static const struct iio_info bm1390_info = {
+	.read_raw = &bm1390_read_raw,
+	.hwfifo_set_watermark = bm1390_set_watermark,
+	.hwfifo_flush_to_buffer = bm1390_fifo_flush,
+};
+
+static int bm1390_chip_init(struct bm1390_data *data)
+{
+	int ret;
+
+	ret = regmap_write_bits(data->regmap, BM1390_REG_POWER,
+				BM1390_MASK_POWER, BM1390_POWER_ON);
+	if (ret)
+		return ret;
+
+	msleep(1);
+
+	ret = regmap_write_bits(data->regmap, BM1390_REG_RESET,
+				BM1390_MASK_RESET, BM1390_RESET);
+	if (ret)
+		return ret;
+
+	msleep(1);
+
+	ret = regmap_write_bits(data->regmap, BM1390_REG_RESET,
+				BM1390_MASK_RESET, BM1390_RESET_RELEASE);
+	if (ret)
+		return ret;
+
+	msleep(1);
+
+	ret = regmap_reinit_cache(data->regmap, &bm1390_regmap);
+	if (ret) {
+		dev_err(data->dev, "Failed to reinit reg cache\n");
+		return ret;
+	}
+
+	/*
+	 * Default to use IIR filter in "middle" mode. Also the AVE_NUM must
+	 * be fixed when IIR is in use.
+	 */
+	ret = regmap_update_bits(data->regmap, BM1390_REG_MODE_CTRL,
+				 BM1390_MASK_AVE_NUM, BM1390_IIR_AVE_NUM);
+	if (ret)
+		return ret;
+
+	return regmap_update_bits(data->regmap, BM1390_REG_FIFO_CTRL,
+				  BM1390_MASK_IIR_MODE, BM1390_IIR_MODE_MID);
+}
+
+static int bm1390_fifo_set_wmi(struct bm1390_data *data)
+{
+	u8 regval;
+
+	regval = FIELD_PREP(BM1390_MASK_FIFO_LEN,
+			    data->watermark - BM1390_WMI_MIN);
+
+	return regmap_update_bits(data->regmap, BM1390_REG_FIFO_CTRL,
+				  BM1390_MASK_FIFO_LEN, regval);
+}
+
+static int bm1390_fifo_enable(struct iio_dev *idev)
+{
+	struct bm1390_data *data = iio_priv(idev);
+	int ret;
+
+	/* We can't do buffered stuff without IRQ as we never get WMI */
+	if (data->irq <= 0)
+		return -EINVAL;
+
+	mutex_lock(&data->mutex);
+	if (data->trigger_enabled) {
+		ret = -EBUSY;
+		goto unlock_out;
+	}
+
+	/* Update watermark to HW */
+	ret = bm1390_fifo_set_wmi(data);
+	if (ret)
+		goto unlock_out;
+
+	/* Enable WMI_IRQ */
+	ret = regmap_set_bits(data->regmap, BM1390_REG_MODE_CTRL,
+			      BM1390_MASK_WMI_EN);
+	if (ret)
+		goto unlock_out;
+
+	/* Enable FIFO */
+	ret = regmap_set_bits(data->regmap, BM1390_REG_FIFO_CTRL,
+			      BM1390_MASK_FIFO_EN);
+	if (ret)
+		goto unlock_out;
+
+	data->state = BM1390_STATE_FIFO;
+
+	data->old_timestamp = iio_get_time_ns(idev);
+	ret = bm1390_meas_set(data, BM1390_MEAS_MODE_CONTINUOUS);
+
+unlock_out:
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static int bm1390_fifo_disable(struct iio_dev *idev)
+{
+	struct bm1390_data *data = iio_priv(idev);
+	int ret;
+
+	msleep(1);
+
+	mutex_lock(&data->mutex);
+	ret = bm1390_meas_set(data, BM1390_MEAS_MODE_STOP);
+	if (ret)
+		goto unlock_out;
+
+	/* Disable FIFO */
+	ret = regmap_clear_bits(data->regmap, BM1390_REG_FIFO_CTRL,
+				BM1390_MASK_FIFO_EN);
+	if (ret)
+		goto unlock_out;
+
+	data->state = BM1390_STATE_SAMPLE;
+
+	/* Disable WMI_IRQ */
+	ret = regmap_clear_bits(data->regmap, BM1390_REG_MODE_CTRL,
+				 BM1390_MASK_WMI_EN);
+
+unlock_out:
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static int bm1390_buffer_postenable(struct iio_dev *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 bm1390_fifo_enable(idev);
+}
+
+static int bm1390_buffer_predisable(struct iio_dev *idev)
+{
+	if (iio_device_get_current_mode(idev) == INDIO_BUFFER_TRIGGERED)
+		return 0;
+
+	return bm1390_fifo_disable(idev);
+}
+
+static const struct iio_buffer_setup_ops bm1390_buffer_ops = {
+	.postenable = bm1390_buffer_postenable,
+	.predisable = bm1390_buffer_predisable,
+};
+
+static irqreturn_t bm1390_trigger_handler(int irq, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *idev = pf->indio_dev;
+	struct bm1390_data *data = iio_priv(idev);
+	int ret, status;
+
+	/* DRDY is acked by reading status reg */
+	ret = regmap_read(data->regmap, BM1390_REG_STATUS, &status);
+	if (ret || !status)
+		return IRQ_NONE;
+
+	dev_dbg(data->dev, "DRDY trig status 0x%x\n", status);
+
+	if (test_bit(BM1390_CHAN_PRESSURE, idev->active_scan_mask)) {
+		ret = bm1390_pressure_read(data, &data->buf.pressure);
+		if (ret) {
+			dev_warn(data->dev, "sample read failed %d\n", ret);
+			return IRQ_NONE;
+		}
+	}
+
+	if (test_bit(BM1390_CHAN_TEMP, idev->active_scan_mask)) {
+		ret = regmap_bulk_read(data->regmap, BM1390_REG_TEMP_HI,
+				       &data->buf.temp, sizeof(data->buf.temp));
+		if (ret) {
+			dev_warn(data->dev, "temp read failed %d\n", ret);
+			return IRQ_HANDLED;
+		}
+	}
+
+	iio_push_to_buffers_with_timestamp(idev, &data->buf, data->timestamp);
+	iio_trigger_notify_done(idev->trig);
+
+	return IRQ_HANDLED;
+}
+
+/* Get timestamps and wake the thread if we need to read data */
+static irqreturn_t bm1390_irq_handler(int irq, void *private)
+{
+	struct iio_dev *idev = private;
+	struct bm1390_data *data = iio_priv(idev);
+
+	data->timestamp = iio_get_time_ns(idev);
+
+	if (data->state == BM1390_STATE_FIFO || data->trigger_enabled)
+		return IRQ_WAKE_THREAD;
+
+	return IRQ_NONE;
+}
+
+static irqreturn_t bm1390_irq_thread_handler(int irq, void *private)
+{
+	struct iio_dev *idev = private;
+	struct bm1390_data *data = iio_priv(idev);
+	int ret = IRQ_NONE;
+
+	mutex_lock(&data->mutex);
+
+	if (data->trigger_enabled) {
+		iio_trigger_poll_nested(data->trig);
+		ret = IRQ_HANDLED;
+	} else if (data->state == BM1390_STATE_FIFO) {
+		int ok;
+
+		ok = __bm1390_fifo_flush(idev, BM1390_FIFO_LENGTH,
+					 data->timestamp);
+		if (ok > 0)
+			ret = IRQ_HANDLED;
+	}
+
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static int bm1390_set_drdy_irq(struct bm1390_data *data, bool en)
+{
+	if (en)
+		return regmap_set_bits(data->regmap, BM1390_REG_MODE_CTRL,
+				       BM1390_MASK_DRDY_EN);
+	return regmap_clear_bits(data->regmap, BM1390_REG_MODE_CTRL,
+				 BM1390_MASK_DRDY_EN);
+}
+
+static int bm1390_trigger_set_state(struct iio_trigger *trig,
+				    bool state)
+{
+	struct bm1390_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 == BM1390_STATE_FIFO) {
+		dev_warn(data->dev, "Can't set trigger when FIFO enabled\n");
+		ret = -EBUSY;
+		goto unlock_out;
+	}
+
+	data->trigger_enabled = state;
+
+	if (state) {
+		ret = bm1390_meas_set(data, BM1390_MEAS_MODE_CONTINUOUS);
+		if (ret)
+			goto unlock_out;
+	} else {
+		int dummy;
+
+		ret = bm1390_meas_set(data, BM1390_MEAS_MODE_STOP);
+		if (ret)
+			goto unlock_out;
+
+		/*
+		 * We need to read the status register in order to ACK the
+		 * data-ready which may have been generated just before we
+		 * disabled the measurement.
+		 */
+		ret = regmap_read(data->regmap, BM1390_REG_STATUS, &dummy);
+		if (ret)
+			dev_warn(data->dev, "status read failed\n");
+	}
+
+	ret = bm1390_set_drdy_irq(data, state);
+
+unlock_out:
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static const struct iio_trigger_ops bm1390_trigger_ops = {
+	.set_trigger_state = bm1390_trigger_set_state,
+};
+
+static int bm1390_setup_buffer(struct bm1390_data *data, struct iio_dev *idev)
+{
+	int ret;
+
+	ret = devm_iio_triggered_buffer_setup(data->dev, idev,
+					      &iio_pollfunc_store_time,
+					      &bm1390_trigger_handler,
+					      &bm1390_buffer_ops);
+
+	if (ret)
+		return dev_err_probe(data->dev, ret,
+				     "iio_triggered_buffer_setup FAIL\n");
+
+	idev->available_scan_masks = bm1390_scan_masks;
+
+	return 0;
+}
+
+static int bm1390_setup_trigger(struct bm1390_data *data, struct iio_dev *idev,
+				int irq)
+{
+	struct iio_trigger *itrig;
+	char *name;
+	int ret;
+
+	itrig = devm_iio_trigger_alloc(data->dev, "%sdata-rdy-dev%d", idev->name,
+					    iio_device_id(idev));
+	if (!itrig)
+		return -ENOMEM;
+
+	data->trig = itrig;
+
+	itrig->ops = &bm1390_trigger_ops;
+	iio_trigger_set_drvdata(itrig, data);
+
+	name = devm_kasprintf(data->dev, GFP_KERNEL, "%s-bm1390",
+			      dev_name(data->dev));
+	if (name == NULL)
+		return -ENOMEM;
+
+	ret = devm_request_threaded_irq(data->dev, irq, bm1390_irq_handler,
+					&bm1390_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(data->dev, itrig);
+	if (ret)
+		return dev_err_probe(data->dev, ret,
+				     "Trigger registration failed\n");
+
+	return 0;
+}
+
+static int bm1390_probe(struct i2c_client *i2c)
+{
+	struct bm1390_data *data;
+	struct regmap *regmap;
+	struct iio_dev *idev;
+	struct device *dev;
+	unsigned int part_id;
+	int ret;
+
+	dev = &i2c->dev;
+
+	regmap = devm_regmap_init_i2c(i2c, &bm1390_regmap);
+	if (IS_ERR(regmap))
+		return dev_err_probe(dev, PTR_ERR(regmap),
+				     "Failed to initialize Regmap\n");
+
+	ret = devm_regulator_get_enable(dev, "vdd");
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to get regulator\n");
+
+	ret = regmap_read(regmap, BM1390_REG_PART_ID, &part_id);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to access sensor\n");
+
+	if (part_id != BM1390_ID)
+		dev_warn(dev, "unknown device 0x%x\n", part_id);
+
+	idev = devm_iio_device_alloc(dev, sizeof(*data));
+	if (!idev)
+		return -ENOMEM;
+
+	data = iio_priv(idev);
+	data->regmap = regmap;
+	data->dev = dev;
+	data->irq = i2c->irq;
+	/*
+	 * For now we just allow BM1390_WMI_MIN to BM1390_WMI_MAX and
+	 * discard every other configuration when triggered mode is not used.
+	 */
+	data->watermark = BM1390_WMI_MAX;
+	mutex_init(&data->mutex);
+
+	idev->channels = bm1390_channels;
+	idev->num_channels = ARRAY_SIZE(bm1390_channels);
+	idev->name = "bm1390";
+	idev->modes = INDIO_DIRECT_MODE;
+
+	ret = bm1390_chip_init(data);
+	if (ret)
+		return dev_err_probe(dev, ret, "sensor init failed\n");
+
+	ret = bm1390_setup_buffer(data, idev);
+	if (ret)
+		return ret;
+
+	/* No trigger if we don't have IRQ for data-ready and WMI */
+	if (i2c->irq > 0) {
+		idev->info = &bm1390_info;
+		idev->modes |= INDIO_BUFFER_SOFTWARE;
+		ret = bm1390_setup_trigger(data, idev, i2c->irq);
+		if (ret)
+			return ret;
+	} else {
+		idev->info = &bm1390_noirq_info;
+	}
+
+	ret = devm_iio_device_register(dev, idev);
+	if (ret < 0)
+		return dev_err_probe(dev, ret,
+				     "Unable to register iio device\n");
+
+	return 0;
+}
+
+static const struct of_device_id bm1390_of_match[] = {
+	{ .compatible = "rohm,bm1390glv-z" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, bm1390_of_match);
+
+static const struct i2c_device_id bm1390_id[] = {
+	{ "bm1390glv-z", },
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, bm1390_id);
+
+static struct i2c_driver bm1390_driver = {
+	.driver = {
+		.name = "bm1390",
+		.of_match_table = bm1390_of_match,
+		/*
+		 * Probing explicitly requires a few millisecond of sleep.
+		 * Enabling the VDD regulator may include ramp up rates.
+		 */
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
+	},
+	.probe = bm1390_probe,
+	.id_table = bm1390_id,
+};
+module_i2c_driver(bm1390_driver);
+
+MODULE_AUTHOR("Matti Vaittinen <mazziesaccount@gmail.com>");
+MODULE_DESCRIPTION("Driver for ROHM BM1390 pressure sensor");
+MODULE_LICENSE("GPL");
diff --git a/drivers/iio/proximity/cros_ec_mkbp_proximity.c b/drivers/iio/proximity/cros_ec_mkbp_proximity.c
index 571ea18122..4df506bb8b 100644
--- a/drivers/iio/proximity/cros_ec_mkbp_proximity.c
+++ b/drivers/iio/proximity/cros_ec_mkbp_proximity.c
@@ -239,15 +239,13 @@ static int cros_ec_mkbp_proximity_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int cros_ec_mkbp_proximity_remove(struct platform_device *pdev)
+static void cros_ec_mkbp_proximity_remove(struct platform_device *pdev)
 {
 	struct cros_ec_mkbp_proximity_data *data = platform_get_drvdata(pdev);
 	struct cros_ec_device *ec = data->ec;
 
 	blocking_notifier_chain_unregister(&ec->event_notifier,
 					   &data->notifier);
-
-	return 0;
 }
 
 static const struct of_device_id cros_ec_mkbp_proximity_of_match[] = {
@@ -263,7 +261,7 @@ static struct platform_driver cros_ec_mkbp_proximity_driver = {
 		.pm = pm_sleep_ptr(&cros_ec_mkbp_proximity_pm_ops),
 	},
 	.probe = cros_ec_mkbp_proximity_probe,
-	.remove = cros_ec_mkbp_proximity_remove,
+	.remove_new = cros_ec_mkbp_proximity_remove,
 };
 module_platform_driver(cros_ec_mkbp_proximity_driver);
 
diff --git a/drivers/iio/proximity/srf04.c b/drivers/iio/proximity/srf04.c
index faf2f806ce..86c57672fc 100644
--- a/drivers/iio/proximity/srf04.c
+++ b/drivers/iio/proximity/srf04.c
@@ -344,7 +344,7 @@ static int srf04_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int srf04_remove(struct platform_device *pdev)
+static void srf04_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct srf04_data *data = iio_priv(indio_dev);
@@ -355,8 +355,6 @@ static int srf04_remove(struct platform_device *pdev)
 		pm_runtime_disable(data->dev);
 		pm_runtime_set_suspended(data->dev);
 	}
-
-	return 0;
 }
 
 static int  srf04_pm_runtime_suspend(struct device *dev)
@@ -391,7 +389,7 @@ static const struct dev_pm_ops srf04_pm_ops = {
 
 static struct platform_driver srf04_driver = {
 	.probe		= srf04_probe,
-	.remove		= srf04_remove,
+	.remove_new	= srf04_remove,
 	.driver		= {
 		.name		= "srf04-gpio",
 		.of_match_table	= of_srf04_match,
diff --git a/drivers/iio/proximity/sx9310.c b/drivers/iio/proximity/sx9310.c
index d977aacb74..0d230a0dff 100644
--- a/drivers/iio/proximity/sx9310.c
+++ b/drivers/iio/proximity/sx9310.c
@@ -159,6 +159,11 @@ static_assert(SX9310_NUM_CHANNELS <= SX_COMMON_MAX_NUM_CHANNELS);
 }
 #define SX9310_CHANNEL(idx) SX9310_NAMED_CHANNEL(idx, NULL)
 
+struct sx931x_info {
+	const char *name;
+	unsigned int whoami;
+};
+
 static const struct iio_chan_spec sx9310_channels[] = {
 	SX9310_CHANNEL(0),			/* CS0 */
 	SX9310_CHANNEL(1),			/* CS1 */
@@ -902,7 +907,7 @@ static int sx9310_check_whoami(struct device *dev,
 			       struct iio_dev *indio_dev)
 {
 	struct sx_common_data *data = iio_priv(indio_dev);
-	unsigned int long ddata;
+	const struct sx931x_info *ddata;
 	unsigned int whoami;
 	int ret;
 
@@ -910,20 +915,11 @@ static int sx9310_check_whoami(struct device *dev,
 	if (ret)
 		return ret;
 
-	ddata = (uintptr_t)device_get_match_data(dev);
-	if (ddata != whoami)
-		return -EINVAL;
-
-	switch (whoami) {
-	case SX9310_WHOAMI_VALUE:
-		indio_dev->name = "sx9310";
-		break;
-	case SX9311_WHOAMI_VALUE:
-		indio_dev->name = "sx9311";
-		break;
-	default:
+	ddata = device_get_match_data(dev);
+	if (ddata->whoami != whoami)
 		return -ENODEV;
-	}
+
+	indio_dev->name = ddata->name;
 
 	return 0;
 }
@@ -1015,23 +1011,33 @@ out:
 
 static DEFINE_SIMPLE_DEV_PM_OPS(sx9310_pm_ops, sx9310_suspend, sx9310_resume);
 
+static const struct sx931x_info sx9310_info = {
+	.name = "sx9310",
+	.whoami = SX9310_WHOAMI_VALUE,
+};
+
+static const struct sx931x_info sx9311_info = {
+	.name = "sx9311",
+	.whoami = SX9311_WHOAMI_VALUE,
+};
+
 static const struct acpi_device_id sx9310_acpi_match[] = {
-	{ "STH9310", SX9310_WHOAMI_VALUE },
-	{ "STH9311", SX9311_WHOAMI_VALUE },
+	{ "STH9310", (kernel_ulong_t)&sx9310_info },
+	{ "STH9311", (kernel_ulong_t)&sx9311_info },
 	{}
 };
 MODULE_DEVICE_TABLE(acpi, sx9310_acpi_match);
 
 static const struct of_device_id sx9310_of_match[] = {
-	{ .compatible = "semtech,sx9310", (void *)SX9310_WHOAMI_VALUE },
-	{ .compatible = "semtech,sx9311", (void *)SX9311_WHOAMI_VALUE },
+	{ .compatible = "semtech,sx9310", &sx9310_info },
+	{ .compatible = "semtech,sx9311", &sx9311_info },
 	{}
 };
 MODULE_DEVICE_TABLE(of, sx9310_of_match);
 
 static const struct i2c_device_id sx9310_id[] = {
-	{ "sx9310", SX9310_WHOAMI_VALUE },
-	{ "sx9311", SX9311_WHOAMI_VALUE },
+	{ "sx9310", (kernel_ulong_t)&sx9310_info },
+	{ "sx9311", (kernel_ulong_t)&sx9311_info },
 	{}
 };
 MODULE_DEVICE_TABLE(i2c, sx9310_id);
diff --git a/drivers/iio/resolver/Kconfig b/drivers/iio/resolver/Kconfig
index 47dbfead9b..424529d360 100644
--- a/drivers/iio/resolver/Kconfig
+++ b/drivers/iio/resolver/Kconfig
@@ -25,4 +25,17 @@ config AD2S1200
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad2s1200.
+
+config AD2S1210
+	tristate "Analog Devices ad2s1210 driver"
+	depends on SPI
+	depends on COMMON_CLK
+	depends on GPIOLIB || COMPILE_TEST
+	help
+	  Say yes here to build support for Analog Devices spi resolver
+	  to digital converters, ad2s1210, provides direct access via sysfs.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ad2s1210.
+
 endmenu
diff --git a/drivers/iio/resolver/Makefile b/drivers/iio/resolver/Makefile
index fa558138ce..7f6c876c35 100644
--- a/drivers/iio/resolver/Makefile
+++ b/drivers/iio/resolver/Makefile
@@ -5,3 +5,4 @@
 
 obj-$(CONFIG_AD2S90) += ad2s90.o
 obj-$(CONFIG_AD2S1200) += ad2s1200.o
+obj-$(CONFIG_AD2S1210) += ad2s1210.o
diff --git a/drivers/iio/resolver/ad2s1210.c b/drivers/iio/resolver/ad2s1210.c
new file mode 100644
index 0000000000..1bd1b950e7
--- /dev/null
+++ b/drivers/iio/resolver/ad2s1210.c
@@ -0,0 +1,1519 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ad2s1210.c support for the ADI Resolver to Digital Converters: AD2S1210
+ *
+ * Copyright (c) 2010-2010 Analog Devices Inc.
+ * Copyright (c) 2023 BayLibre, SAS
+ *
+ * Device register to IIO ABI mapping:
+ *
+ * Register                    | Addr | IIO ABI (sysfs)
+ * ----------------------------|------|-------------------------------------------
+ * DOS Overrange Threshold     | 0x89 | events/in_altvoltage0_thresh_rising_value
+ * DOS Mismatch Threshold      | 0x8A | events/in_altvoltage0_mag_rising_value
+ * DOS Reset Maximum Threshold | 0x8B | events/in_altvoltage0_mag_rising_reset_max
+ * DOS Reset Minimum Threshold | 0x8C | events/in_altvoltage0_mag_rising_reset_min
+ * LOT High Threshold          | 0x8D | events/in_angl1_thresh_rising_value
+ * LOT Low Threshold [1]       | 0x8E | events/in_angl1_thresh_rising_hysteresis
+ * Excitation Frequency        | 0x91 | out_altvoltage0_frequency
+ * Control                     | 0x92 | *as bit fields*
+ *   Phase lock range          | D5   | events/in_phase0_mag_rising_value
+ *   Hysteresis                | D4   | in_angl0_hysteresis
+ *   Encoder resolution        | D3:2 | *not implemented*
+ *   Resolution                | D1:0 | *device tree: assigned-resolution-bits*
+ * Soft Reset                  | 0xF0 | [2]
+ * Fault                       | 0xFF | *not implemented*
+ *
+ * [1]: The value written to the LOT low register is high value minus the
+ * hysteresis.
+ * [2]: Soft reset is performed when `out_altvoltage0_frequency` is written.
+ *
+ * Fault to event mapping:
+ *
+ * Fault                                   |    | Channel     | Type   | Direction
+ * ----------------------------------------|----|---------------------------------
+ * Sine/cosine inputs clipped [3]          | D7 | altvoltage1 | mag    | either
+ * Sine/cosine inputs below LOS            | D6 | altvoltage0 | thresh | falling
+ * Sine/cosine inputs exceed DOS overrange | D5 | altvoltage0 | thresh | rising
+ * Sine/cosine inputs exceed DOS mismatch  | D4 | altvoltage0 | mag    | rising
+ * Tracking error exceeds LOT              | D3 | angl1       | thresh | rising
+ * Velocity exceeds maximum tracking rate  | D2 | anglvel0    | mag    | rising
+ * Phase error exceeds phase lock range    | D1 | phase0      | mag    | rising
+ * Configuration parity error              | D0 | *writes to kernel log*
+ *
+ * [3]: The chip does not differentiate between fault on sine vs. cosine so
+ * there will also be an event on the altvoltage2 channel.
+ */
+
+#include <linux/bitfield.h>
+#include <linux/bits.h>
+#include <linux/cleanup.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/sysfs.h>
+#include <linux/types.h>
+
+#include <linux/iio/buffer.h>
+#include <linux/iio/events.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+
+/* control register flags */
+#define AD2S1210_ADDRESS_DATA		BIT(7)
+#define AD2S1210_PHASE_LOCK_RANGE_44	BIT(5)
+#define AD2S1210_ENABLE_HYSTERESIS	BIT(4)
+#define AD2S1210_SET_ENRES		GENMASK(3, 2)
+#define AD2S1210_SET_RES		GENMASK(1, 0)
+
+/* fault register flags */
+#define AD2S1210_FAULT_CLIP		BIT(7)
+#define AD2S1210_FAULT_LOS		BIT(6)
+#define AD2S1210_FAULT_DOS_OVR		BIT(5)
+#define AD2S1210_FAULT_DOS_MIS		BIT(4)
+#define AD2S1210_FAULT_LOT		BIT(3)
+#define AD2S1210_FAULT_VELOCITY		BIT(2)
+#define AD2S1210_FAULT_PHASE		BIT(1)
+#define AD2S1210_FAULT_CONFIG_PARITY	BIT(0)
+
+#define AD2S1210_REG_POSITION_MSB	0x80
+#define AD2S1210_REG_POSITION_LSB	0x81
+#define AD2S1210_REG_VELOCITY_MSB	0x82
+#define AD2S1210_REG_VELOCITY_LSB	0x83
+#define AD2S1210_REG_LOS_THRD		0x88
+#define AD2S1210_REG_DOS_OVR_THRD	0x89
+#define AD2S1210_REG_DOS_MIS_THRD	0x8A
+#define AD2S1210_REG_DOS_RST_MAX_THRD	0x8B
+#define AD2S1210_REG_DOS_RST_MIN_THRD	0x8C
+#define AD2S1210_REG_LOT_HIGH_THRD	0x8D
+#define AD2S1210_REG_LOT_LOW_THRD	0x8E
+#define AD2S1210_REG_EXCIT_FREQ		0x91
+#define AD2S1210_REG_CONTROL		0x92
+#define AD2S1210_REG_SOFT_RESET		0xF0
+#define AD2S1210_REG_FAULT		0xFF
+
+#define AD2S1210_MIN_CLKIN	6144000
+#define AD2S1210_MAX_CLKIN	10240000
+#define AD2S1210_MIN_EXCIT	2000
+#define AD2S1210_DEF_EXCIT	10000
+#define AD2S1210_MAX_EXCIT	20000
+#define AD2S1210_MIN_FCW	0x4
+#define AD2S1210_MAX_FCW	0x50
+
+/* 44 degrees ~= 0.767945 radians */
+#define PHASE_44_DEG_TO_RAD_INT 0
+#define PHASE_44_DEG_TO_RAD_MICRO 767945
+/* 360 degrees ~= 6.283185 radians */
+#define PHASE_360_DEG_TO_RAD_INT 6
+#define PHASE_360_DEG_TO_RAD_MICRO 283185
+
+/* Threshold voltage registers have 1 LSB == 38 mV */
+#define THRESHOLD_MILLIVOLT_PER_LSB 38
+/* max voltage for threshold registers is 0x7F * 38 mV */
+#define THRESHOLD_RANGE_STR "[0 38 4826]"
+
+#define FAULT_ONESHOT(bit, new, old) (new & bit && !(old & bit))
+
+enum ad2s1210_mode {
+	MOD_POS = 0b00,
+	MOD_VEL = 0b01,
+	MOD_RESERVED = 0b10,
+	MOD_CONFIG = 0b11,
+};
+
+enum ad2s1210_resolution {
+	AD2S1210_RES_10 = 0b00,
+	AD2S1210_RES_12 = 0b01,
+	AD2S1210_RES_14 = 0b10,
+	AD2S1210_RES_16 = 0b11,
+};
+
+struct ad2s1210_state {
+	struct mutex lock;
+	struct spi_device *sdev;
+	/** GPIO pin connected to SAMPLE line. */
+	struct gpio_desc *sample_gpio;
+	/** GPIO pins connected to A0 and A1 lines. */
+	struct gpio_descs *mode_gpios;
+	/** Used to access config registers. */
+	struct regmap *regmap;
+	/** The external oscillator frequency in Hz. */
+	unsigned long clkin_hz;
+	/** Available raw hysteresis values based on resolution. */
+	int hysteresis_available[2];
+	/** The selected resolution */
+	enum ad2s1210_resolution resolution;
+	/** Copy of fault register from the previous read. */
+	u8 prev_fault_flags;
+	/** For reading raw sample value via SPI. */
+	struct {
+		__be16 raw;
+		u8 fault;
+	} sample __aligned(IIO_DMA_MINALIGN);
+	/** Scan buffer */
+	struct {
+		__be16 chan[2];
+		/* Ensure timestamp is naturally aligned. */
+		s64 timestamp __aligned(8);
+	} scan;
+	/** SPI transmit buffer. */
+	u8 rx[2];
+	/** SPI receive buffer. */
+	u8 tx[2];
+};
+
+static int ad2s1210_set_mode(struct ad2s1210_state *st, enum ad2s1210_mode mode)
+{
+	struct gpio_descs *gpios = st->mode_gpios;
+	DECLARE_BITMAP(bitmap, 2);
+
+	bitmap[0] = mode;
+
+	return gpiod_set_array_value(gpios->ndescs, gpios->desc, gpios->info,
+				     bitmap);
+}
+
+/*
+ * Writes the given data to the given register address.
+ *
+ * If the mode is configurable, the device will first be placed in
+ * configuration mode.
+ */
+static int ad2s1210_regmap_reg_write(void *context, unsigned int reg,
+				     unsigned int val)
+{
+	struct ad2s1210_state *st = context;
+	struct spi_transfer xfers[] = {
+		{
+			.len = 1,
+			.rx_buf = &st->rx[0],
+			.tx_buf = &st->tx[0],
+			.cs_change = 1,
+		}, {
+			.len = 1,
+			.rx_buf = &st->rx[1],
+			.tx_buf = &st->tx[1],
+		},
+	};
+	int ret;
+
+	/* values can only be 7 bits, the MSB indicates an address */
+	if (val & ~0x7F)
+		return -EINVAL;
+
+	st->tx[0] = reg;
+	st->tx[1] = val;
+
+	ret = ad2s1210_set_mode(st, MOD_CONFIG);
+	if (ret < 0)
+		return ret;
+
+	ret = spi_sync_transfer(st->sdev, xfers, ARRAY_SIZE(xfers));
+	if (ret < 0)
+		return ret;
+
+	/* soft reset also clears the fault register */
+	if (reg == AD2S1210_REG_SOFT_RESET)
+		st->prev_fault_flags = 0;
+
+	return 0;
+}
+
+/*
+ * Reads value from one of the registers.
+ *
+ * If the mode is configurable, the device will first be placed in
+ * configuration mode.
+ */
+static int ad2s1210_regmap_reg_read(void *context, unsigned int reg,
+				    unsigned int *val)
+{
+	struct ad2s1210_state *st = context;
+	struct spi_transfer xfers[] = {
+		{
+			.len = 1,
+			.rx_buf = &st->rx[0],
+			.tx_buf = &st->tx[0],
+			.cs_change = 1,
+		}, {
+			.len = 1,
+			.rx_buf = &st->rx[1],
+			.tx_buf = &st->tx[1],
+		},
+	};
+	int ret;
+
+	ret = ad2s1210_set_mode(st, MOD_CONFIG);
+	if (ret < 0)
+		return ret;
+
+	st->tx[0] = reg;
+	/*
+	 * Must be valid register address here otherwise this could write data.
+	 * It doesn't matter which one as long as reading doesn't have side-
+	 * effects.
+	 */
+	st->tx[1] = AD2S1210_REG_CONTROL;
+
+	ret = spi_sync_transfer(st->sdev, xfers, ARRAY_SIZE(xfers));
+	if (ret < 0)
+		return ret;
+
+	/* reading the fault register also clears it */
+	if (reg == AD2S1210_REG_FAULT)
+		st->prev_fault_flags = 0;
+
+	/*
+	 * If the D7 bit is set on any read/write register, it indicates a
+	 * parity error. The fault register is read-only and the D7 bit means
+	 * something else there.
+	 */
+	if (reg != AD2S1210_REG_FAULT && st->rx[1] & AD2S1210_ADDRESS_DATA)
+		return -EBADMSG;
+
+	*val = st->rx[1];
+
+	return 0;
+}
+
+/*
+ * Toggles the SAMPLE line on the AD2S1210 to latch in the current position,
+ * velocity, and faults.
+ *
+ * Must be called with lock held.
+ */
+static void ad2s1210_toggle_sample_line(struct ad2s1210_state *st)
+{
+	/*
+	 * Datasheet specifies minimum hold time t16 = 2 * tck + 20 ns. So the
+	 * longest time needed is when CLKIN is 6.144 MHz, in which case t16
+	 * ~= 350 ns. The same delay is also needed before re-asserting the
+	 * SAMPLE line.
+	 */
+	gpiod_set_value(st->sample_gpio, 1);
+	ndelay(350);
+	gpiod_set_value(st->sample_gpio, 0);
+	ndelay(350);
+}
+
+/*
+ * Sets the excitation frequency and performs software reset.
+ *
+ * Must be called with lock held.
+ */
+static int ad2s1210_reinit_excitation_frequency(struct ad2s1210_state *st,
+						u16 fexcit)
+{
+	/* Map resolution to settle time in milliseconds. */
+	static const int track_time_ms[] = { 10, 20, 25, 60 };
+	unsigned int ignored;
+	int ret;
+	u8 fcw;
+
+	fcw = fexcit * (1 << 15) / st->clkin_hz;
+	if (fcw < AD2S1210_MIN_FCW || fcw > AD2S1210_MAX_FCW)
+		return -ERANGE;
+
+	ret = regmap_write(st->regmap, AD2S1210_REG_EXCIT_FREQ, fcw);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * Software reset reinitializes the excitation frequency output.
+	 * It does not reset any of the configuration registers.
+	 */
+	ret = regmap_write(st->regmap, AD2S1210_REG_SOFT_RESET, 0);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * Soft reset always triggers some faults due the change in the output
+	 * signal so clear the faults too. We need to delay for some time
+	 * (what datasheet calls t[track]) to allow things to settle before
+	 * clearing the faults.
+	 */
+	msleep(track_time_ms[st->resolution] * 8192000 / st->clkin_hz);
+
+	/* Reading the fault register clears the faults. */
+	ret = regmap_read(st->regmap, AD2S1210_REG_FAULT, &ignored);
+	if (ret < 0)
+		return ret;
+
+	/* Have to toggle sample line to get fault output pins to reset. */
+	ad2s1210_toggle_sample_line(st);
+
+	return 0;
+}
+
+static void ad2s1210_push_events(struct iio_dev *indio_dev,
+				 u8 flags, s64 timestamp)
+{
+	struct ad2s1210_state *st = iio_priv(indio_dev);
+
+	/* Sine/cosine inputs clipped */
+	if (FAULT_ONESHOT(AD2S1210_FAULT_CLIP, flags, st->prev_fault_flags)) {
+		/*
+		 * The chip does not differentiate between fault on sine vs.
+		 * cosine channel so we just send an event on both channels.
+		 */
+		iio_push_event(indio_dev,
+			       IIO_UNMOD_EVENT_CODE(IIO_ALTVOLTAGE, 1,
+						    IIO_EV_TYPE_MAG,
+						    IIO_EV_DIR_EITHER),
+			       timestamp);
+		iio_push_event(indio_dev,
+			       IIO_UNMOD_EVENT_CODE(IIO_ALTVOLTAGE, 2,
+						    IIO_EV_TYPE_MAG,
+						    IIO_EV_DIR_EITHER),
+			       timestamp);
+	}
+
+	/* Sine/cosine inputs below LOS threshold */
+	if (FAULT_ONESHOT(AD2S1210_FAULT_LOS, flags, st->prev_fault_flags))
+		iio_push_event(indio_dev,
+			       IIO_UNMOD_EVENT_CODE(IIO_ALTVOLTAGE, 0,
+						    IIO_EV_TYPE_THRESH,
+						    IIO_EV_DIR_FALLING),
+			       timestamp);
+
+	/* Sine/cosine inputs exceed DOS overrange threshold */
+	if (FAULT_ONESHOT(AD2S1210_FAULT_DOS_OVR, flags, st->prev_fault_flags))
+		iio_push_event(indio_dev,
+			       IIO_UNMOD_EVENT_CODE(IIO_ALTVOLTAGE, 0,
+						    IIO_EV_TYPE_THRESH,
+						    IIO_EV_DIR_RISING),
+			       timestamp);
+
+	/* Sine/cosine inputs exceed DOS mismatch threshold */
+	if (FAULT_ONESHOT(AD2S1210_FAULT_DOS_MIS, flags, st->prev_fault_flags))
+		iio_push_event(indio_dev,
+			       IIO_UNMOD_EVENT_CODE(IIO_ALTVOLTAGE, 0,
+						    IIO_EV_TYPE_MAG,
+						    IIO_EV_DIR_RISING),
+			       timestamp);
+
+	/* Tracking error exceeds LOT threshold */
+	if (FAULT_ONESHOT(AD2S1210_FAULT_LOT, flags, st->prev_fault_flags))
+		iio_push_event(indio_dev,
+			       IIO_UNMOD_EVENT_CODE(IIO_ANGL, 1,
+						    IIO_EV_TYPE_THRESH,
+						    IIO_EV_DIR_RISING),
+			       timestamp);
+
+	/* Velocity exceeds maximum tracking rate */
+	if (FAULT_ONESHOT(AD2S1210_FAULT_VELOCITY, flags, st->prev_fault_flags))
+		iio_push_event(indio_dev,
+			       IIO_UNMOD_EVENT_CODE(IIO_ANGL_VEL, 0,
+						    IIO_EV_TYPE_THRESH,
+						    IIO_EV_DIR_RISING),
+			       timestamp);
+
+	/* Phase error exceeds phase lock range */
+	if (FAULT_ONESHOT(AD2S1210_FAULT_PHASE, flags, st->prev_fault_flags))
+		iio_push_event(indio_dev,
+			       IIO_UNMOD_EVENT_CODE(IIO_PHASE, 0,
+						    IIO_EV_TYPE_MAG,
+						    IIO_EV_DIR_RISING),
+			       timestamp);
+
+	/* Configuration parity error */
+	if (FAULT_ONESHOT(AD2S1210_FAULT_CONFIG_PARITY, flags,
+			  st->prev_fault_flags))
+		/*
+		 * Userspace should also get notified of this via error return
+		 * when trying to write to any attribute that writes a register.
+		 */
+		dev_err_ratelimited(&indio_dev->dev,
+				    "Configuration parity error\n");
+
+	st->prev_fault_flags = flags;
+}
+
+static int ad2s1210_single_conversion(struct iio_dev *indio_dev,
+				      struct iio_chan_spec const *chan,
+				      int *val)
+{
+	struct ad2s1210_state *st = iio_priv(indio_dev);
+	s64 timestamp;
+	int ret;
+
+	guard(mutex)(&st->lock);
+
+	ad2s1210_toggle_sample_line(st);
+	timestamp = iio_get_time_ns(indio_dev);
+
+	switch (chan->type) {
+	case IIO_ANGL:
+		ret = ad2s1210_set_mode(st, MOD_POS);
+		break;
+	case IIO_ANGL_VEL:
+		ret = ad2s1210_set_mode(st, MOD_VEL);
+		break;
+	default:
+		return -EINVAL;
+	}
+	if (ret < 0)
+		return ret;
+	ret = spi_read(st->sdev, &st->sample, 3);
+	if (ret < 0)
+		return ret;
+
+	switch (chan->type) {
+	case IIO_ANGL:
+		*val = be16_to_cpu(st->sample.raw);
+		ret = IIO_VAL_INT;
+		break;
+	case IIO_ANGL_VEL:
+		*val = (s16)be16_to_cpu(st->sample.raw);
+		ret = IIO_VAL_INT;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ad2s1210_push_events(indio_dev, st->sample.fault, timestamp);
+
+	return ret;
+}
+
+static int ad2s1210_get_hysteresis(struct ad2s1210_state *st, int *val)
+{
+	int ret;
+
+	guard(mutex)(&st->lock);
+	ret = regmap_test_bits(st->regmap, AD2S1210_REG_CONTROL,
+			       AD2S1210_ENABLE_HYSTERESIS);
+	if (ret < 0)
+		return ret;
+
+	*val = ret << (2 * (AD2S1210_RES_16 - st->resolution));
+	return IIO_VAL_INT;
+}
+
+static int ad2s1210_set_hysteresis(struct ad2s1210_state *st, int val)
+{
+	guard(mutex)(&st->lock);
+	return regmap_update_bits(st->regmap, AD2S1210_REG_CONTROL,
+				  AD2S1210_ENABLE_HYSTERESIS,
+				  val ? AD2S1210_ENABLE_HYSTERESIS : 0);
+}
+
+static int ad2s1210_get_phase_lock_range(struct ad2s1210_state *st,
+					 int *val, int *val2)
+{
+	int ret;
+
+	guard(mutex)(&st->lock);
+	ret = regmap_test_bits(st->regmap, AD2S1210_REG_CONTROL,
+			       AD2S1210_PHASE_LOCK_RANGE_44);
+	if (ret < 0)
+		return ret;
+
+	if (ret) {
+		/* 44 degrees as radians */
+		*val = PHASE_44_DEG_TO_RAD_INT;
+		*val2 = PHASE_44_DEG_TO_RAD_MICRO;
+	} else {
+		/* 360 degrees as radians */
+		*val = PHASE_360_DEG_TO_RAD_INT;
+		*val2 = PHASE_360_DEG_TO_RAD_MICRO;
+	}
+
+	return IIO_VAL_INT_PLUS_MICRO;
+}
+
+static int ad2s1210_set_phase_lock_range(struct ad2s1210_state *st,
+					 int val, int val2)
+{
+	int deg;
+
+	/* convert radians to degrees - only two allowable values */
+	if (val == PHASE_44_DEG_TO_RAD_INT && val2 == PHASE_44_DEG_TO_RAD_MICRO)
+		deg = 44;
+	else if (val == PHASE_360_DEG_TO_RAD_INT &&
+		 val2 == PHASE_360_DEG_TO_RAD_MICRO)
+		deg = 360;
+	else
+		return -EINVAL;
+
+	guard(mutex)(&st->lock);
+	return regmap_update_bits(st->regmap, AD2S1210_REG_CONTROL,
+				  AD2S1210_PHASE_LOCK_RANGE_44,
+				  deg == 44 ? AD2S1210_PHASE_LOCK_RANGE_44 : 0);
+}
+
+/* map resolution to microradians/LSB for LOT registers */
+static const int ad2s1210_lot_threshold_urad_per_lsb[] = {
+	6184, /* 10-bit: ~0.35 deg/LSB, 45 deg max */
+	2473, /* 12-bit: ~0.14 deg/LSB, 18 deg max */
+	1237, /* 14-bit: ~0.07 deg/LSB, 9 deg max */
+	1237, /* 16-bit: same as 14-bit */
+};
+
+static int ad2s1210_get_voltage_threshold(struct ad2s1210_state *st,
+					  unsigned int reg, int *val)
+{
+	unsigned int reg_val;
+	int ret;
+
+	guard(mutex)(&st->lock);
+	ret = regmap_read(st->regmap, reg, &reg_val);
+	if (ret < 0)
+		return ret;
+
+	*val = reg_val * THRESHOLD_MILLIVOLT_PER_LSB;
+	return IIO_VAL_INT;
+}
+
+static int ad2s1210_set_voltage_threshold(struct ad2s1210_state *st,
+					  unsigned int reg, int val)
+{
+	unsigned int reg_val;
+
+	reg_val = val / THRESHOLD_MILLIVOLT_PER_LSB;
+
+	guard(mutex)(&st->lock);
+	return regmap_write(st->regmap, reg, reg_val);
+}
+
+static int ad2s1210_get_lot_high_threshold(struct ad2s1210_state *st,
+					   int *val, int *val2)
+{
+	unsigned int reg_val;
+	int ret;
+
+	guard(mutex)(&st->lock);
+	ret = regmap_read(st->regmap, AD2S1210_REG_LOT_HIGH_THRD, &reg_val);
+	if (ret < 0)
+		return ret;
+
+	*val = 0;
+	*val2 = reg_val * ad2s1210_lot_threshold_urad_per_lsb[st->resolution];
+	return IIO_VAL_INT_PLUS_MICRO;
+}
+
+static int ad2s1210_set_lot_high_threshold(struct ad2s1210_state *st,
+					   int val, int val2)
+{
+	unsigned int high_reg_val, low_reg_val, hysteresis;
+	int ret;
+
+	/* all valid values are between 0 and pi/4 radians */
+	if (val != 0)
+		return -EINVAL;
+
+	guard(mutex)(&st->lock);
+	/*
+	 * We need to read both high and low registers first so we can preserve
+	 * the hysteresis.
+	 */
+	ret = regmap_read(st->regmap, AD2S1210_REG_LOT_HIGH_THRD, &high_reg_val);
+	if (ret < 0)
+		return ret;
+
+	ret = regmap_read(st->regmap, AD2S1210_REG_LOT_LOW_THRD, &low_reg_val);
+	if (ret < 0)
+		return ret;
+
+	hysteresis = high_reg_val - low_reg_val;
+	high_reg_val = val2 / ad2s1210_lot_threshold_urad_per_lsb[st->resolution];
+	low_reg_val = high_reg_val - hysteresis;
+
+	ret = regmap_write(st->regmap, AD2S1210_REG_LOT_HIGH_THRD, high_reg_val);
+	if (ret < 0)
+		return ret;
+
+	return regmap_write(st->regmap, AD2S1210_REG_LOT_LOW_THRD, low_reg_val);
+}
+
+static int ad2s1210_get_lot_low_threshold(struct ad2s1210_state *st,
+					  int *val, int *val2)
+{
+	unsigned int high_reg_val, low_reg_val;
+	int ret;
+
+	guard(mutex)(&st->lock);
+
+	ret = regmap_read(st->regmap, AD2S1210_REG_LOT_HIGH_THRD, &high_reg_val);
+	if (ret < 0)
+		return ret;
+
+	ret = regmap_read(st->regmap, AD2S1210_REG_LOT_LOW_THRD, &low_reg_val);
+	if (ret < 0)
+		return ret;
+
+	/* sysfs value is hysteresis rather than actual low value */
+	*val = 0;
+	*val2 = (high_reg_val - low_reg_val) *
+		ad2s1210_lot_threshold_urad_per_lsb[st->resolution];
+	return IIO_VAL_INT_PLUS_MICRO;
+}
+
+static int ad2s1210_set_lot_low_threshold(struct ad2s1210_state *st,
+					  int val, int val2)
+{
+	unsigned int reg_val, hysteresis;
+	int ret;
+
+	/* all valid values are between 0 and pi/4 radians */
+	if (val != 0)
+		return -EINVAL;
+
+	hysteresis = val2 / ad2s1210_lot_threshold_urad_per_lsb[st->resolution];
+
+	guard(mutex)(&st->lock);
+
+	ret = regmap_read(st->regmap, AD2S1210_REG_LOT_HIGH_THRD, &reg_val);
+	if (ret < 0)
+		return ret;
+
+	return regmap_write(st->regmap, AD2S1210_REG_LOT_LOW_THRD,
+			   reg_val - hysteresis);
+}
+
+static int ad2s1210_get_excitation_frequency(struct ad2s1210_state *st, int *val)
+{
+	unsigned int reg_val;
+	int ret;
+
+	guard(mutex)(&st->lock);
+
+	ret = regmap_read(st->regmap, AD2S1210_REG_EXCIT_FREQ, &reg_val);
+	if (ret < 0)
+		return ret;
+
+	*val = reg_val * st->clkin_hz / (1 << 15);
+	return IIO_VAL_INT;
+}
+
+static int ad2s1210_set_excitation_frequency(struct ad2s1210_state *st, int val)
+{
+	if (val < AD2S1210_MIN_EXCIT || val > AD2S1210_MAX_EXCIT)
+		return -EINVAL;
+
+	guard(mutex)(&st->lock);
+	return ad2s1210_reinit_excitation_frequency(st, val);
+}
+
+static const int ad2s1210_velocity_scale[] = {
+	17089132, /* 8.192MHz / (2*pi * 2500 / 2^15) */
+	42722830, /* 8.192MHz / (2*pi * 1000 / 2^15) */
+	85445659, /* 8.192MHz / (2*pi * 500 / 2^15) */
+	341782638, /* 8.192MHz / (2*pi * 125 / 2^15) */
+};
+
+static int ad2s1210_read_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     int *val,
+			     int *val2,
+			     long mask)
+{
+	struct ad2s1210_state *st = iio_priv(indio_dev);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		return ad2s1210_single_conversion(indio_dev, chan, val);
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->type) {
+		case IIO_ANGL:
+			/* approx 0.3 arc min converted to radians */
+			*val = 0;
+			*val2 = 95874;
+			return IIO_VAL_INT_PLUS_NANO;
+		case IIO_ANGL_VEL:
+			*val = st->clkin_hz;
+			*val2 = ad2s1210_velocity_scale[st->resolution];
+			return IIO_VAL_FRACTIONAL;
+		default:
+			return -EINVAL;
+		}
+	case IIO_CHAN_INFO_FREQUENCY:
+		switch (chan->type) {
+		case IIO_ALTVOLTAGE:
+			return ad2s1210_get_excitation_frequency(st, val);
+		default:
+			return -EINVAL;
+		}
+	case IIO_CHAN_INFO_HYSTERESIS:
+		switch (chan->type) {
+		case IIO_ANGL:
+			return ad2s1210_get_hysteresis(st, val);
+		default:
+			return -EINVAL;
+		}
+	default:
+		return -EINVAL;
+	}
+}
+
+static int ad2s1210_read_avail(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       const int **vals, int *type,
+			       int *length, long mask)
+{
+	static const int excitation_frequency_available[] = {
+		AD2S1210_MIN_EXCIT,
+		250, /* step */
+		AD2S1210_MAX_EXCIT,
+	};
+
+	struct ad2s1210_state *st = iio_priv(indio_dev);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_FREQUENCY:
+		switch (chan->type) {
+		case IIO_ALTVOLTAGE:
+			*type = IIO_VAL_INT;
+			*vals = excitation_frequency_available;
+			return IIO_AVAIL_RANGE;
+		default:
+			return -EINVAL;
+		}
+	case IIO_CHAN_INFO_HYSTERESIS:
+		switch (chan->type) {
+		case IIO_ANGL:
+			*vals = st->hysteresis_available;
+			*type = IIO_VAL_INT;
+			*length = ARRAY_SIZE(st->hysteresis_available);
+			return IIO_AVAIL_LIST;
+		default:
+			return -EINVAL;
+		}
+	default:
+		return -EINVAL;
+	}
+}
+
+static int ad2s1210_write_raw(struct iio_dev *indio_dev,
+			      struct iio_chan_spec const *chan,
+			      int val, int val2, long mask)
+{
+	struct ad2s1210_state *st = iio_priv(indio_dev);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_FREQUENCY:
+		switch (chan->type) {
+		case IIO_ALTVOLTAGE:
+			return ad2s1210_set_excitation_frequency(st, val);
+		default:
+			return -EINVAL;
+		}
+	case IIO_CHAN_INFO_HYSTERESIS:
+		switch (chan->type) {
+		case IIO_ANGL:
+			return ad2s1210_set_hysteresis(st, val);
+		default:
+			return -EINVAL;
+		}
+	default:
+		return -EINVAL;
+	}
+}
+
+static const struct iio_event_spec ad2s1210_position_event_spec[] = {
+	{
+		/* Tracking error exceeds LOT threshold fault. */
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate =
+			/* Loss of tracking high threshold. */
+			BIT(IIO_EV_INFO_VALUE) |
+			/* Loss of tracking low threshold. */
+			BIT(IIO_EV_INFO_HYSTERESIS),
+	},
+};
+
+static const struct iio_event_spec ad2s1210_velocity_event_spec[] = {
+	{
+		/* Velocity exceeds maximum tracking rate fault. */
+		.type = IIO_EV_TYPE_MAG,
+		.dir = IIO_EV_DIR_RISING,
+	},
+};
+
+static const struct iio_event_spec ad2s1210_phase_event_spec[] = {
+	{
+		/* Phase error fault. */
+		.type = IIO_EV_TYPE_MAG,
+		.dir = IIO_EV_DIR_RISING,
+		/* Phase lock range. */
+		.mask_separate = BIT(IIO_EV_INFO_VALUE),
+	},
+};
+
+static const struct iio_event_spec ad2s1210_monitor_signal_event_spec[] = {
+	{
+		/* Sine/cosine below LOS threshold fault. */
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		/* Loss of signal threshold. */
+		.mask_separate = BIT(IIO_EV_INFO_VALUE),
+	},
+	{
+		/* Sine/cosine DOS overrange fault.*/
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		/* Degredation of signal overrange threshold. */
+		.mask_separate = BIT(IIO_EV_INFO_VALUE),
+	},
+	{
+		/* Sine/cosine DOS mismatch fault.*/
+		.type = IIO_EV_TYPE_MAG,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE),
+	},
+};
+
+static const struct iio_event_spec ad2s1210_sin_cos_event_spec[] = {
+	{
+		/* Sine/cosine clipping fault. */
+		.type = IIO_EV_TYPE_MAG,
+		.dir = IIO_EV_DIR_EITHER,
+	},
+};
+
+static const struct iio_chan_spec ad2s1210_channels[] = {
+	{
+		.type = IIO_ANGL,
+		.indexed = 1,
+		.channel = 0,
+		.scan_index = 0,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 16,
+			.storagebits = 16,
+			.endianness = IIO_BE,
+		},
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+				      BIT(IIO_CHAN_INFO_SCALE) |
+				      BIT(IIO_CHAN_INFO_HYSTERESIS),
+		.info_mask_separate_available =
+					BIT(IIO_CHAN_INFO_HYSTERESIS),
+	}, {
+		.type = IIO_ANGL_VEL,
+		.indexed = 1,
+		.channel = 0,
+		.scan_index = 1,
+		.scan_type = {
+			.sign = 's',
+			.realbits = 16,
+			.storagebits = 16,
+			.endianness = IIO_BE,
+		},
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+				      BIT(IIO_CHAN_INFO_SCALE),
+		.event_spec = ad2s1210_velocity_event_spec,
+		.num_event_specs = ARRAY_SIZE(ad2s1210_velocity_event_spec),
+	},
+	IIO_CHAN_SOFT_TIMESTAMP(2),
+	{
+		/* used to configure LOT thresholds and get tracking error */
+		.type = IIO_ANGL,
+		.indexed = 1,
+		.channel = 1,
+		.scan_index = -1,
+		.event_spec = ad2s1210_position_event_spec,
+		.num_event_specs = ARRAY_SIZE(ad2s1210_position_event_spec),
+	},
+	{
+		/* used to configure phase lock range and get phase lock error */
+		.type = IIO_PHASE,
+		.indexed = 1,
+		.channel = 0,
+		.scan_index = -1,
+		.event_spec = ad2s1210_phase_event_spec,
+		.num_event_specs = ARRAY_SIZE(ad2s1210_phase_event_spec),
+	}, {
+		/* excitation frequency output */
+		.type = IIO_ALTVOLTAGE,
+		.indexed = 1,
+		.channel = 0,
+		.output = 1,
+		.scan_index = -1,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_FREQUENCY),
+		.info_mask_separate_available = BIT(IIO_CHAN_INFO_FREQUENCY),
+	}, {
+		/* monitor signal */
+		.type = IIO_ALTVOLTAGE,
+		.indexed = 1,
+		.channel = 0,
+		.scan_index = -1,
+		.event_spec = ad2s1210_monitor_signal_event_spec,
+		.num_event_specs = ARRAY_SIZE(ad2s1210_monitor_signal_event_spec),
+	}, {
+		/* sine input */
+		.type = IIO_ALTVOLTAGE,
+		.indexed = 1,
+		.channel = 1,
+		.scan_index = -1,
+		.event_spec = ad2s1210_sin_cos_event_spec,
+		.num_event_specs = ARRAY_SIZE(ad2s1210_sin_cos_event_spec),
+	}, {
+		/* cosine input */
+		.type = IIO_ALTVOLTAGE,
+		.indexed = 1,
+		.channel = 2,
+		.scan_index = -1,
+		.event_spec = ad2s1210_sin_cos_event_spec,
+		.num_event_specs = ARRAY_SIZE(ad2s1210_sin_cos_event_spec),
+	},
+};
+
+static ssize_t event_attr_voltage_reg_show(struct device *dev,
+					   struct device_attribute *attr,
+					   char *buf)
+{
+	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
+	struct iio_dev_attr *iattr = to_iio_dev_attr(attr);
+	unsigned int value;
+	int ret;
+
+	guard(mutex)(&st->lock);
+	ret = regmap_read(st->regmap, iattr->address, &value);
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "%d\n", value * THRESHOLD_MILLIVOLT_PER_LSB);
+}
+
+static ssize_t event_attr_voltage_reg_store(struct device *dev,
+					    struct device_attribute *attr,
+					    const char *buf, size_t len)
+{
+	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
+	struct iio_dev_attr *iattr = to_iio_dev_attr(attr);
+	u16 data;
+	int ret;
+
+	ret = kstrtou16(buf, 10, &data);
+	if (ret)
+		return -EINVAL;
+
+	guard(mutex)(&st->lock);
+	ret = regmap_write(st->regmap, iattr->address,
+			   data / THRESHOLD_MILLIVOLT_PER_LSB);
+	if (ret < 0)
+		return ret;
+
+	return len;
+}
+
+static ssize_t
+in_angl1_thresh_rising_value_available_show(struct device *dev,
+					    struct device_attribute *attr,
+					    char *buf)
+{
+	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
+	int step = ad2s1210_lot_threshold_urad_per_lsb[st->resolution];
+
+	return sysfs_emit(buf, "[0 0.%06d 0.%06d]\n", step, step * 0x7F);
+}
+
+static ssize_t
+in_angl1_thresh_rising_hysteresis_available_show(struct device *dev,
+						 struct device_attribute *attr,
+						 char *buf)
+{
+	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
+	int step = ad2s1210_lot_threshold_urad_per_lsb[st->resolution];
+
+	return sysfs_emit(buf, "[0 0.%06d 0.%06d]\n", step, step * 0x7F);
+}
+
+static IIO_CONST_ATTR(in_phase0_mag_rising_value_available,
+		      __stringify(PHASE_44_DEG_TO_RAD_INT) "."
+		      __stringify(PHASE_44_DEG_TO_RAD_MICRO) " "
+		      __stringify(PHASE_360_DEG_TO_RAD_INT) "."
+		      __stringify(PHASE_360_DEG_TO_RAD_MICRO));
+static IIO_CONST_ATTR(in_altvoltage0_thresh_falling_value_available,
+		      THRESHOLD_RANGE_STR);
+static IIO_CONST_ATTR(in_altvoltage0_thresh_rising_value_available,
+		      THRESHOLD_RANGE_STR);
+static IIO_CONST_ATTR(in_altvoltage0_mag_rising_value_available,
+		      THRESHOLD_RANGE_STR);
+static IIO_DEVICE_ATTR(in_altvoltage0_mag_rising_reset_max, 0644,
+		       event_attr_voltage_reg_show, event_attr_voltage_reg_store,
+		       AD2S1210_REG_DOS_RST_MAX_THRD);
+static IIO_CONST_ATTR(in_altvoltage0_mag_rising_reset_max_available, THRESHOLD_RANGE_STR);
+static IIO_DEVICE_ATTR(in_altvoltage0_mag_rising_reset_min, 0644,
+		       event_attr_voltage_reg_show, event_attr_voltage_reg_store,
+		       AD2S1210_REG_DOS_RST_MIN_THRD);
+static IIO_CONST_ATTR(in_altvoltage0_mag_rising_reset_min_available, THRESHOLD_RANGE_STR);
+static IIO_DEVICE_ATTR_RO(in_angl1_thresh_rising_value_available, 0);
+static IIO_DEVICE_ATTR_RO(in_angl1_thresh_rising_hysteresis_available, 0);
+
+static struct attribute *ad2s1210_event_attributes[] = {
+	&iio_const_attr_in_phase0_mag_rising_value_available.dev_attr.attr,
+	&iio_const_attr_in_altvoltage0_thresh_falling_value_available.dev_attr.attr,
+	&iio_const_attr_in_altvoltage0_thresh_rising_value_available.dev_attr.attr,
+	&iio_const_attr_in_altvoltage0_mag_rising_value_available.dev_attr.attr,
+	&iio_dev_attr_in_altvoltage0_mag_rising_reset_max.dev_attr.attr,
+	&iio_const_attr_in_altvoltage0_mag_rising_reset_max_available.dev_attr.attr,
+	&iio_dev_attr_in_altvoltage0_mag_rising_reset_min.dev_attr.attr,
+	&iio_const_attr_in_altvoltage0_mag_rising_reset_min_available.dev_attr.attr,
+	&iio_dev_attr_in_angl1_thresh_rising_value_available.dev_attr.attr,
+	&iio_dev_attr_in_angl1_thresh_rising_hysteresis_available.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group ad2s1210_event_attribute_group = {
+	.attrs = ad2s1210_event_attributes,
+};
+
+static int ad2s1210_initial(struct ad2s1210_state *st)
+{
+	unsigned int data;
+	int ret;
+
+	guard(mutex)(&st->lock);
+
+	/* Use default config register value plus resolution from devicetree. */
+	data = FIELD_PREP(AD2S1210_PHASE_LOCK_RANGE_44, 1);
+	data |= FIELD_PREP(AD2S1210_ENABLE_HYSTERESIS, 1);
+	data |= FIELD_PREP(AD2S1210_SET_ENRES, 0x3);
+	data |= FIELD_PREP(AD2S1210_SET_RES, st->resolution);
+
+	ret = regmap_write(st->regmap, AD2S1210_REG_CONTROL, data);
+	if (ret < 0)
+		return ret;
+
+	return ad2s1210_reinit_excitation_frequency(st, AD2S1210_DEF_EXCIT);
+}
+
+static int ad2s1210_read_label(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       char *label)
+{
+	if (chan->type == IIO_ANGL) {
+		if (chan->channel == 0)
+			return sprintf(label, "position\n");
+		if (chan->channel == 1)
+			return sprintf(label, "tracking error\n");
+	}
+	if (chan->type == IIO_ANGL_VEL)
+		return sprintf(label, "velocity\n");
+	if (chan->type == IIO_PHASE)
+		return sprintf(label, "synthetic reference\n");
+	if (chan->type == IIO_ALTVOLTAGE) {
+		if (chan->output)
+			return sprintf(label, "excitation\n");
+		if (chan->channel == 0)
+			return sprintf(label, "monitor signal\n");
+		if (chan->channel == 1)
+			return sprintf(label, "cosine\n");
+		if (chan->channel == 2)
+			return sprintf(label, "sine\n");
+	}
+
+	return -EINVAL;
+}
+
+static int ad2s1210_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 ad2s1210_state *st = iio_priv(indio_dev);
+
+	switch (chan->type) {
+	case IIO_ANGL:
+		switch (info) {
+		case IIO_EV_INFO_VALUE:
+			return ad2s1210_get_lot_high_threshold(st, val, val2);
+		case IIO_EV_INFO_HYSTERESIS:
+			return ad2s1210_get_lot_low_threshold(st, val, val2);
+		default:
+			return -EINVAL;
+		}
+	case IIO_ALTVOLTAGE:
+		if (chan->output)
+			return -EINVAL;
+		if (type == IIO_EV_TYPE_THRESH && dir == IIO_EV_DIR_FALLING)
+			return ad2s1210_get_voltage_threshold(st,
+						AD2S1210_REG_LOS_THRD, val);
+		if (type == IIO_EV_TYPE_THRESH && dir == IIO_EV_DIR_RISING)
+			return ad2s1210_get_voltage_threshold(st,
+						AD2S1210_REG_DOS_OVR_THRD, val);
+		if (type == IIO_EV_TYPE_MAG)
+			return ad2s1210_get_voltage_threshold(st,
+						AD2S1210_REG_DOS_MIS_THRD, val);
+		return -EINVAL;
+	case IIO_PHASE:
+		return ad2s1210_get_phase_lock_range(st, val, val2);
+	default:
+		return -EINVAL;
+	}
+}
+
+static int ad2s1210_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 ad2s1210_state *st = iio_priv(indio_dev);
+
+	switch (chan->type) {
+	case IIO_ANGL:
+		switch (info) {
+		case IIO_EV_INFO_VALUE:
+			return ad2s1210_set_lot_high_threshold(st, val, val2);
+		case IIO_EV_INFO_HYSTERESIS:
+			return ad2s1210_set_lot_low_threshold(st, val, val2);
+		default:
+			return -EINVAL;
+		}
+	case IIO_ALTVOLTAGE:
+		if (chan->output)
+			return -EINVAL;
+		if (type == IIO_EV_TYPE_THRESH && dir == IIO_EV_DIR_FALLING)
+			return ad2s1210_set_voltage_threshold(st,
+						AD2S1210_REG_LOS_THRD, val);
+		if (type == IIO_EV_TYPE_THRESH && dir == IIO_EV_DIR_RISING)
+			return ad2s1210_set_voltage_threshold(st,
+						AD2S1210_REG_DOS_OVR_THRD, val);
+		if (type == IIO_EV_TYPE_MAG)
+			return ad2s1210_set_voltage_threshold(st,
+						AD2S1210_REG_DOS_MIS_THRD, val);
+		return -EINVAL;
+	case IIO_PHASE:
+		return ad2s1210_set_phase_lock_range(st, val, val2);
+	default:
+		return -EINVAL;
+	}
+}
+
+static int ad2s1210_read_event_label(struct iio_dev *indio_dev,
+				     struct iio_chan_spec const *chan,
+				     enum iio_event_type type,
+				     enum iio_event_direction dir,
+				     char *label)
+{
+	if (chan->type == IIO_ANGL)
+		return sprintf(label, "LOT\n");
+	if (chan->type == IIO_ANGL_VEL)
+		return sprintf(label, "max tracking rate\n");
+	if (chan->type == IIO_PHASE)
+		return sprintf(label, "phase lock\n");
+	if (chan->type == IIO_ALTVOLTAGE) {
+		if (chan->channel == 0) {
+			if (type == IIO_EV_TYPE_THRESH &&
+			    dir == IIO_EV_DIR_FALLING)
+				return sprintf(label, "LOS\n");
+			if (type == IIO_EV_TYPE_THRESH &&
+			    dir == IIO_EV_DIR_RISING)
+				return sprintf(label, "DOS overrange\n");
+			if (type == IIO_EV_TYPE_MAG)
+				return sprintf(label, "DOS mismatch\n");
+		}
+		if (chan->channel == 1 || chan->channel == 2)
+			return sprintf(label, "clipped\n");
+	}
+
+	return -EINVAL;
+}
+
+static int ad2s1210_debugfs_reg_access(struct iio_dev *indio_dev,
+				       unsigned int reg, unsigned int writeval,
+				       unsigned int *readval)
+{
+	struct ad2s1210_state *st = iio_priv(indio_dev);
+
+	guard(mutex)(&st->lock);
+
+	if (readval)
+		return regmap_read(st->regmap, reg, readval);
+
+	return regmap_write(st->regmap, reg, writeval);
+}
+
+static irqreturn_t ad2s1210_trigger_handler(int irq, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct ad2s1210_state *st = iio_priv(indio_dev);
+	size_t chan = 0;
+	int ret;
+
+	guard(mutex)(&st->lock);
+
+	memset(&st->scan, 0, sizeof(st->scan));
+	ad2s1210_toggle_sample_line(st);
+
+	if (test_bit(0, indio_dev->active_scan_mask)) {
+		ret = ad2s1210_set_mode(st, MOD_POS);
+		if (ret < 0)
+			goto error_ret;
+
+		ret = spi_read(st->sdev, &st->sample, 3);
+		if (ret < 0)
+			goto error_ret;
+
+		memcpy(&st->scan.chan[chan++], &st->sample.raw, 2);
+	}
+
+	if (test_bit(1, indio_dev->active_scan_mask)) {
+		ret = ad2s1210_set_mode(st, MOD_VEL);
+		if (ret < 0)
+			goto error_ret;
+
+		ret = spi_read(st->sdev, &st->sample, 3);
+		if (ret < 0)
+			goto error_ret;
+
+		memcpy(&st->scan.chan[chan++], &st->sample.raw, 2);
+	}
+
+	ad2s1210_push_events(indio_dev, st->sample.fault, pf->timestamp);
+	iio_push_to_buffers_with_timestamp(indio_dev, &st->scan, pf->timestamp);
+
+error_ret:
+	iio_trigger_notify_done(indio_dev->trig);
+
+	return IRQ_HANDLED;
+}
+
+static const struct iio_info ad2s1210_info = {
+	.event_attrs = &ad2s1210_event_attribute_group,
+	.read_raw = ad2s1210_read_raw,
+	.read_avail = ad2s1210_read_avail,
+	.write_raw = ad2s1210_write_raw,
+	.read_label = ad2s1210_read_label,
+	.read_event_value = ad2s1210_read_event_value,
+	.write_event_value = ad2s1210_write_event_value,
+	.read_event_label = ad2s1210_read_event_label,
+	.debugfs_reg_access = &ad2s1210_debugfs_reg_access,
+};
+
+static int ad2s1210_setup_properties(struct ad2s1210_state *st)
+{
+	struct device *dev = &st->sdev->dev;
+	u32 val;
+	int ret;
+
+	ret = device_property_read_u32(dev, "assigned-resolution-bits", &val);
+	if (ret < 0)
+		return dev_err_probe(dev, ret,
+			"failed to read assigned-resolution-bits property\n");
+
+	if (val < 10 || val > 16)
+		return dev_err_probe(dev, -EINVAL,
+				     "resolution out of range: %u\n", val);
+
+	st->resolution = (val - 10) >> 1;
+	/*
+	 * These are values that correlate to the hysteresis bit in the Control
+	 * register. 0 = disabled, 1 = enabled. When enabled, the actual
+	 * hysteresis is +/- 1 LSB of the raw position value. Which bit is the
+	 * LSB depends on the specified resolution.
+	 */
+	st->hysteresis_available[0] = 0;
+	st->hysteresis_available[1] = 1 << (2 * (AD2S1210_RES_16 -
+						 st->resolution));
+
+	return 0;
+}
+
+static int ad2s1210_setup_clocks(struct ad2s1210_state *st)
+{
+	struct device *dev = &st->sdev->dev;
+	struct clk *clk;
+
+	clk = devm_clk_get_enabled(dev, NULL);
+	if (IS_ERR(clk))
+		return dev_err_probe(dev, PTR_ERR(clk), "failed to get clock\n");
+
+	st->clkin_hz = clk_get_rate(clk);
+	if (st->clkin_hz < AD2S1210_MIN_CLKIN || st->clkin_hz > AD2S1210_MAX_CLKIN)
+		return dev_err_probe(dev, -EINVAL,
+				     "clock frequency out of range: %lu\n",
+				     st->clkin_hz);
+
+	return 0;
+}
+
+static int ad2s1210_setup_gpios(struct ad2s1210_state *st)
+{
+	struct device *dev = &st->sdev->dev;
+	struct gpio_descs *resolution_gpios;
+	DECLARE_BITMAP(bitmap, 2);
+	int ret;
+
+	/* should not be sampling on startup */
+	st->sample_gpio = devm_gpiod_get(dev, "sample", GPIOD_OUT_LOW);
+	if (IS_ERR(st->sample_gpio))
+		return dev_err_probe(dev, PTR_ERR(st->sample_gpio),
+				     "failed to request sample GPIO\n");
+
+	/* both pins high means that we start in config mode */
+	st->mode_gpios = devm_gpiod_get_array(dev, "mode", GPIOD_OUT_HIGH);
+	if (IS_ERR(st->mode_gpios))
+		return dev_err_probe(dev, PTR_ERR(st->mode_gpios),
+				     "failed to request mode GPIOs\n");
+
+	if (st->mode_gpios->ndescs != 2)
+		return dev_err_probe(dev, -EINVAL,
+				     "requires exactly 2 mode-gpios\n");
+
+	/*
+	 * If resolution gpios are provided, they get set to the required
+	 * resolution, otherwise it is assumed the RES0 and RES1 pins are
+	 * hard-wired to match the resolution indicated in the devicetree.
+	 */
+	resolution_gpios = devm_gpiod_get_array_optional(dev, "resolution",
+							 GPIOD_ASIS);
+	if (IS_ERR(resolution_gpios))
+		return dev_err_probe(dev, PTR_ERR(resolution_gpios),
+				     "failed to request resolution GPIOs\n");
+
+	if (resolution_gpios) {
+		if (resolution_gpios->ndescs != 2)
+			return dev_err_probe(dev, -EINVAL,
+				      "requires exactly 2 resolution-gpios\n");
+
+		bitmap[0] = st->resolution;
+
+		ret = gpiod_set_array_value(resolution_gpios->ndescs,
+					    resolution_gpios->desc,
+					    resolution_gpios->info,
+					    bitmap);
+		if (ret < 0)
+			return dev_err_probe(dev, ret,
+					     "failed to set resolution gpios\n");
+	}
+
+	return 0;
+}
+
+static const struct regmap_range ad2s1210_regmap_readable_ranges[] = {
+	regmap_reg_range(AD2S1210_REG_POSITION_MSB, AD2S1210_REG_VELOCITY_LSB),
+	regmap_reg_range(AD2S1210_REG_LOS_THRD, AD2S1210_REG_LOT_LOW_THRD),
+	regmap_reg_range(AD2S1210_REG_EXCIT_FREQ, AD2S1210_REG_CONTROL),
+	regmap_reg_range(AD2S1210_REG_FAULT, AD2S1210_REG_FAULT),
+};
+
+static const struct regmap_access_table ad2s1210_regmap_rd_table = {
+	.yes_ranges = ad2s1210_regmap_readable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(ad2s1210_regmap_readable_ranges),
+};
+
+static const struct regmap_range ad2s1210_regmap_writeable_ranges[] = {
+	regmap_reg_range(AD2S1210_REG_LOS_THRD, AD2S1210_REG_LOT_LOW_THRD),
+	regmap_reg_range(AD2S1210_REG_EXCIT_FREQ, AD2S1210_REG_CONTROL),
+	regmap_reg_range(AD2S1210_REG_SOFT_RESET, AD2S1210_REG_SOFT_RESET),
+	regmap_reg_range(AD2S1210_REG_FAULT, AD2S1210_REG_FAULT),
+};
+
+static const struct regmap_access_table ad2s1210_regmap_wr_table = {
+	.yes_ranges = ad2s1210_regmap_writeable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(ad2s1210_regmap_writeable_ranges),
+};
+
+static int ad2s1210_setup_regmap(struct ad2s1210_state *st)
+{
+	struct device *dev = &st->sdev->dev;
+	const struct regmap_config config = {
+		.reg_bits = 8,
+		.val_bits = 8,
+		.disable_locking = true,
+		.reg_read = ad2s1210_regmap_reg_read,
+		.reg_write = ad2s1210_regmap_reg_write,
+		.rd_table = &ad2s1210_regmap_rd_table,
+		.wr_table = &ad2s1210_regmap_wr_table,
+		.can_sleep = true,
+	};
+
+	st->regmap = devm_regmap_init(dev, NULL, st, &config);
+	if (IS_ERR(st->regmap))
+		return dev_err_probe(dev, PTR_ERR(st->regmap),
+				     "failed to allocate register map\n");
+
+	return 0;
+}
+
+static int ad2s1210_probe(struct spi_device *spi)
+{
+	struct iio_dev *indio_dev;
+	struct ad2s1210_state *st;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!indio_dev)
+		return -ENOMEM;
+	st = iio_priv(indio_dev);
+
+	mutex_init(&st->lock);
+	st->sdev = spi;
+
+	ret = ad2s1210_setup_properties(st);
+	if (ret < 0)
+		return ret;
+
+	ret = ad2s1210_setup_clocks(st);
+	if (ret < 0)
+		return ret;
+
+	ret = ad2s1210_setup_gpios(st);
+	if (ret < 0)
+		return ret;
+
+	ret = ad2s1210_setup_regmap(st);
+	if (ret < 0)
+		return ret;
+
+	ret = ad2s1210_initial(st);
+	if (ret < 0)
+		return ret;
+
+	indio_dev->info = &ad2s1210_info;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = ad2s1210_channels;
+	indio_dev->num_channels = ARRAY_SIZE(ad2s1210_channels);
+	indio_dev->name = spi_get_device_id(spi)->name;
+
+	ret = devm_iio_triggered_buffer_setup(&spi->dev, indio_dev,
+					      &iio_pollfunc_store_time,
+					      &ad2s1210_trigger_handler, NULL);
+	if (ret < 0)
+		return dev_err_probe(&spi->dev, ret,
+				     "iio triggered buffer setup failed\n");
+
+	return devm_iio_device_register(&spi->dev, indio_dev);
+}
+
+static const struct of_device_id ad2s1210_of_match[] = {
+	{ .compatible = "adi,ad2s1210", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, ad2s1210_of_match);
+
+static const struct spi_device_id ad2s1210_id[] = {
+	{ "ad2s1210" },
+	{}
+};
+MODULE_DEVICE_TABLE(spi, ad2s1210_id);
+
+static struct spi_driver ad2s1210_driver = {
+	.driver = {
+		.name = "ad2s1210",
+		.of_match_table = ad2s1210_of_match,
+	},
+	.probe = ad2s1210_probe,
+	.id_table = ad2s1210_id,
+};
+module_spi_driver(ad2s1210_driver);
+
+MODULE_AUTHOR("Graff Yang <graff.yang@gmail.com>");
+MODULE_DESCRIPTION("Analog Devices AD2S1210 Resolver to Digital SPI driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/temperature/hid-sensor-temperature.c b/drivers/iio/temperature/hid-sensor-temperature.c
index d40f235af1..0143fd4789 100644
--- a/drivers/iio/temperature/hid-sensor-temperature.c
+++ b/drivers/iio/temperature/hid-sensor-temperature.c
@@ -257,7 +257,7 @@ error_remove_trigger:
 }
 
 /* Function to deinitialize the processing for usage id */
-static int hid_temperature_remove(struct platform_device *pdev)
+static void hid_temperature_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = dev_get_platdata(&pdev->dev);
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
@@ -265,8 +265,6 @@ static int hid_temperature_remove(struct platform_device *pdev)
 
 	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_TEMPERATURE);
 	hid_sensor_remove_trigger(indio_dev, &temp_st->common_attributes);
-
-	return 0;
 }
 
 static const struct platform_device_id hid_temperature_ids[] = {
@@ -285,7 +283,7 @@ static struct platform_driver hid_temperature_platform_driver = {
 		.pm	= &hid_sensor_pm_ops,
 	},
 	.probe		= hid_temperature_probe,
-	.remove		= hid_temperature_remove,
+	.remove_new	= hid_temperature_remove,
 };
 module_platform_driver(hid_temperature_platform_driver);
 
diff --git a/drivers/iio/temperature/mlx90614.c b/drivers/iio/temperature/mlx90614.c
index 07bb5df24a..740018d4b3 100644
--- a/drivers/iio/temperature/mlx90614.c
+++ b/drivers/iio/temperature/mlx90614.c
@@ -600,7 +600,7 @@ static int mlx90614_probe(struct i2c_client *client)
 	data->client = client;
 	mutex_init(&data->lock);
 	data->wakeup_gpio = mlx90614_probe_wakeup(client);
-	data->chip_info = device_get_match_data(&client->dev);
+	data->chip_info = i2c_get_match_data(client);
 
 	mlx90614_wakeup(data);
 
diff --git a/drivers/iio/temperature/tmp117.c b/drivers/iio/temperature/tmp117.c
index fc02f49168..059953015a 100644
--- a/drivers/iio/temperature/tmp117.c
+++ b/drivers/iio/temperature/tmp117.c
@@ -42,6 +42,12 @@ struct tmp117_data {
 	s16 calibbias;
 };
 
+struct tmp11x_info {
+	const char *name;
+	struct iio_chan_spec const *channels;
+	int num_channels;
+};
+
 static int tmp117_read_raw(struct iio_dev *indio_dev,
 			   struct iio_chan_spec const *channel, int *val,
 			   int *val2, long mask)
@@ -119,57 +125,54 @@ static const struct iio_chan_spec tmp116_channels[] = {
 	},
 };
 
+static const struct tmp11x_info tmp116_channels_info = {
+	.name = "tmp116",
+	.channels = tmp116_channels,
+	.num_channels = ARRAY_SIZE(tmp116_channels)
+};
+
+static const struct tmp11x_info tmp117_channels_info = {
+	.name = "tmp117",
+	.channels = tmp117_channels,
+	.num_channels = ARRAY_SIZE(tmp117_channels)
+};
+
 static const struct iio_info tmp117_info = {
 	.read_raw = tmp117_read_raw,
 	.write_raw = tmp117_write_raw,
 };
 
-static int tmp117_identify(struct i2c_client *client)
+static int tmp117_probe(struct i2c_client *client)
 {
-	const struct i2c_device_id *id;
-	unsigned long match_data;
+	const struct tmp11x_info *match_data;
+	struct tmp117_data *data;
+	struct iio_dev *indio_dev;
 	int dev_id;
 
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA))
+		return -EOPNOTSUPP;
+
 	dev_id = i2c_smbus_read_word_swapped(client, TMP117_REG_DEVICE_ID);
 	if (dev_id < 0)
 		return dev_id;
 
 	switch (dev_id) {
 	case TMP116_DEVICE_ID:
+		match_data = &tmp116_channels_info;
+		break;
 	case TMP117_DEVICE_ID:
-		return dev_id;
+		match_data = &tmp117_channels_info;
+		break;
+	default:
+		dev_info(&client->dev,
+			 "Unknown device id (0x%x), use fallback compatible\n",
+			 dev_id);
+		match_data = i2c_get_match_data(client);
 	}
 
-	dev_info(&client->dev, "Unknown device id (0x%x), use fallback compatible\n",
-		 dev_id);
-
-	match_data = (uintptr_t)device_get_match_data(&client->dev);
-	if (match_data)
-		return match_data;
-
-	id = i2c_client_get_device_id(client);
-	if (id)
-		return id->driver_data;
-
-	dev_err(&client->dev, "Failed to identify unsupported device\n");
-
-	return -ENODEV;
-}
-
-static int tmp117_probe(struct i2c_client *client)
-{
-	struct tmp117_data *data;
-	struct iio_dev *indio_dev;
-	int ret, dev_id;
-
-	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA))
-		return -EOPNOTSUPP;
-
-	ret = tmp117_identify(client);
-	if (ret < 0)
-		return ret;
-
-	dev_id = ret;
+	if (!match_data)
+		return dev_err_probe(&client->dev, -ENODEV,
+				     "Failed to identify unsupported device\n");
 
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
 	if (!indio_dev)
@@ -181,33 +184,24 @@ static int tmp117_probe(struct i2c_client *client)
 
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &tmp117_info;
+	indio_dev->channels = match_data->channels;
+	indio_dev->num_channels = match_data->num_channels;
+	indio_dev->name = match_data->name;
 
-	switch (dev_id) {
-	case TMP116_DEVICE_ID:
-		indio_dev->channels = tmp116_channels;
-		indio_dev->num_channels = ARRAY_SIZE(tmp116_channels);
-		indio_dev->name = "tmp116";
-		break;
-	case TMP117_DEVICE_ID:
-		indio_dev->channels = tmp117_channels;
-		indio_dev->num_channels = ARRAY_SIZE(tmp117_channels);
-		indio_dev->name = "tmp117";
-		break;
-	}
 
 	return devm_iio_device_register(&client->dev, indio_dev);
 }
 
 static const struct of_device_id tmp117_of_match[] = {
-	{ .compatible = "ti,tmp116", .data = (void *)TMP116_DEVICE_ID },
-	{ .compatible = "ti,tmp117", .data = (void *)TMP117_DEVICE_ID },
+	{ .compatible = "ti,tmp116", .data = &tmp116_channels_info },
+	{ .compatible = "ti,tmp117", .data = &tmp117_channels_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, tmp117_of_match);
 
 static const struct i2c_device_id tmp117_id[] = {
-	{ "tmp116", TMP116_DEVICE_ID },
-	{ "tmp117", TMP117_DEVICE_ID },
+	{ "tmp116", (kernel_ulong_t)&tmp116_channels_info },
+	{ "tmp117", (kernel_ulong_t)&tmp117_channels_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, tmp117_id);
diff --git a/drivers/iio/trigger/iio-trig-interrupt.c b/drivers/iio/trigger/iio-trig-interrupt.c
index 5f49cd105f..dec256bfbd 100644
--- a/drivers/iio/trigger/iio-trig-interrupt.c
+++ b/drivers/iio/trigger/iio-trig-interrupt.c
@@ -81,7 +81,7 @@ error_ret:
 	return ret;
 }
 
-static int iio_interrupt_trigger_remove(struct platform_device *pdev)
+static void iio_interrupt_trigger_remove(struct platform_device *pdev)
 {
 	struct iio_trigger *trig;
 	struct iio_interrupt_trigger_info *trig_info;
@@ -92,13 +92,11 @@ static int iio_interrupt_trigger_remove(struct platform_device *pdev)
 	free_irq(trig_info->irq, trig);
 	kfree(trig_info);
 	iio_trigger_free(trig);
-
-	return 0;
 }
 
 static struct platform_driver iio_interrupt_trigger_driver = {
 	.probe = iio_interrupt_trigger_probe,
-	.remove = iio_interrupt_trigger_remove,
+	.remove_new = iio_interrupt_trigger_remove,
 	.driver = {
 		.name = "iio_interrupt_trigger",
 	},
diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c
index 3643c4afae..d76444030a 100644
--- a/drivers/iio/trigger/stm32-timer-trigger.c
+++ b/drivers/iio/trigger/stm32-timer-trigger.c
@@ -809,7 +809,7 @@ static int stm32_timer_trigger_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int stm32_timer_trigger_remove(struct platform_device *pdev)
+static void stm32_timer_trigger_remove(struct platform_device *pdev)
 {
 	struct stm32_timer_trigger *priv = platform_get_drvdata(pdev);
 	u32 val;
@@ -824,8 +824,6 @@ static int stm32_timer_trigger_remove(struct platform_device *pdev)
 
 	if (priv->enabled)
 		clk_disable(priv->clk);
-
-	return 0;
 }
 
 static int stm32_timer_trigger_suspend(struct device *dev)
@@ -904,7 +902,7 @@ MODULE_DEVICE_TABLE(of, stm32_trig_of_match);
 
 static struct platform_driver stm32_timer_trigger_driver = {
 	.probe = stm32_timer_trigger_probe,
-	.remove = stm32_timer_trigger_remove,
+	.remove_new = stm32_timer_trigger_remove,
 	.driver = {
 		.name = "stm32-timer-trigger",
 		.of_match_table = stm32_trig_of_match,
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-05-18 17:35:05 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-05-18 17:39:31 +0000
commit	85c675d0d09a45a135bddd15d7b385f8758c32fb (patch)
tree	76267dbc9b9a130337be3640948fe397b04ac629 /drivers/iio
parent	Adding upstream version 6.6.15. (diff)
download	linux-85c675d0d09a45a135bddd15d7b385f8758c32fb.tar.xz linux-85c675d0d09a45a135bddd15d7b385f8758c32fb.zip