Merge tag 'staging-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging updates from Greg KH:
 "Here is the big staging patch set for 3.18-rc1.

  Once again, we are deleting more code than we added, with something
  like 150000 lines deleted overall.  Some of this is due to drivers
  being added to the networking tree, so the old versions are removed
  here, but even then, the overall difference is quite good.

  Other than driver deletions, lots and lots and lots of minor cleanups
  all over the place.  Full details are in the changelog"

* tag 'staging-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1481 commits)
  staging: et131x: Remove et131x driver from drivers/staging
  staging: emxx_udc: Use min_t instead of min
  staging: emxx_udc: Fix replace printk(KERN_DEBUG ..) with dev_dbg
  staging: media: Fixed else after return or break warning
  staging: media: omap4iss: Fixed else after return or break warning
  staging: rtl8712: Fixed else not required after return
  staging: rtl8712: Fix missing blank line warning
  staging: rtl8192e: rtl8192e: Remove spaces before the semicolons
  staging: rtl8192e: rtl8192e: Remove unnecessary return statements
  staging: rtl8192e: Remove unneeded void return
  staging: rtl8192e: Fix void function return statements style
  staging: rtl8712: Fix unnecessary parentheses style warning
  staging: rtl8192e: Fix unnecessary space before function pointer arguments
  staging: rtl8192e: Array was made static const char * const
  staging: ft1000: ft1000-usb: Removed unnecessary else statement.
  staging: ft1000: ft1000-usb: Removed unnecessary else statement.
  staging: ft1000: ft1000-usb: Removed unnecessary parentheses.
  staging: ft1000: ft1000-usb: Added new line after declarations.
  staging: vt6655: Fixed C99 // comment errors in wpactl.c
  staging: speakup: Fixed warning <linux/serial.h> instead of <asm/serial.h>
  ...

42 files changed, 5142 insertions, 332 deletions

diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
index 12addf2..9b9be87 100644
--- a/drivers/iio/accel/Kconfig
+++ b/drivers/iio/accel/Kconfig
@@ -6,17 +6,32 @@
 menu "Accelerometers"
 
 config BMA180
-	tristate "Bosch BMA180 3-Axis Accelerometer Driver"
+	tristate "Bosch BMA180/BMA250 3-Axis Accelerometer Driver"
 	depends on I2C
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	help
-	  Say Y here if you want to build a driver for the Bosch BMA180
-	  triaxial acceleration sensor.
+	  Say Y here if you want to build a driver for the Bosch BMA180 or
+	  BMA250 triaxial acceleration sensor.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called bma180.
 
+config BMC150_ACCEL
+	tristate "Bosch BMC150 Accelerometer Driver"
+	depends on I2C
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	help
+	  Say yes here to build support for the following Bosch accelerometers:
+	  BMC150, BMI055, BMA250E, BMA222E, BMA255, BMA280.
+
+	  Currently this only supports the device via an i2c interface.
+
+	  This is a combo module with both accelerometer and magnetometer.
+	  This driver is only implementing accelerometer part, which has
+	  its own address and register map.
+
 config HID_SENSOR_ACCEL_3D
 	depends on HID_SENSOR_HUB
 	select IIO_BUFFER
@@ -84,7 +99,8 @@ config KXCJK1013
 	select IIO_TRIGGERED_BUFFER
 	help
 	  Say Y here if you want to build a driver for the Kionix KXCJK-1013
-	  triaxial acceleration sensor.
+	  triaxial acceleration sensor. This driver also supports KXCJ9-1008
+	  and KXTJ2-1009.
 
 	  To compile this driver as a module, choose M here: the module will
 	  be called kxcjk-1013.
diff --git a/drivers/iio/accel/Makefile b/drivers/iio/accel/Makefile
index 6578ca1..a593996 100644
--- a/drivers/iio/accel/Makefile
+++ b/drivers/iio/accel/Makefile
@@ -4,6 +4,7 @@
 
 # When adding new entries keep the list in alphabetical order
 obj-$(CONFIG_BMA180) += bma180.o
+obj-$(CONFIG_BMC150_ACCEL) += bmc150-accel.o
 obj-$(CONFIG_HID_SENSOR_ACCEL_3D) += hid-sensor-accel-3d.o
 obj-$(CONFIG_KXCJK1013) += kxcjk-1013.o
 obj-$(CONFIG_KXSD9)	+= kxsd9.o
diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index 19100fd..1096da3 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -3,9 +3,15 @@
  *
  * Copyright 2013 Oleksandr Kravchenko <x0199363@ti.com>
  *
+ * Support for BMA250 (c) Peter Meerwald <pmeerw@pmeerw.net>
+ *
  * This file is subject to the terms and conditions of version 2 of
  * the GNU General Public License.  See the file COPYING in the main
  * directory of this archive for more details.
+ *
+ * SPI is not supported by driver
+ * BMA180: 7-bit I2C slave address 0x40 or 0x41
+ * BMA250: 7-bit I2C slave address 0x18 or 0x19
  */
 
 #include <linux/module.h>
@@ -26,9 +32,37 @@
 #define BMA180_DRV_NAME "bma180"
 #define BMA180_IRQ_NAME "bma180_event"
 
+enum {
+	BMA180,
+	BMA250,
+};
+
+struct bma180_data;
+
+struct bma180_part_info {
+	const struct iio_chan_spec *channels;
+	unsigned num_channels;
+	const int *scale_table;
+	unsigned num_scales;
+	const int *bw_table;
+	unsigned num_bw;
+
+	u8 int_reset_reg, int_reset_mask;
+	u8 sleep_reg, sleep_mask;
+	u8 bw_reg, bw_mask;
+	u8 scale_reg, scale_mask;
+	u8 power_reg, power_mask, lowpower_val;
+	u8 int_enable_reg, int_enable_mask;
+	u8 softreset_reg;
+
+	int (*chip_config)(struct bma180_data *data);
+	void (*chip_disable)(struct bma180_data *data);
+};
+
 /* Register set */
 #define BMA180_CHIP_ID		0x00 /* Need to distinguish BMA180 from other */
 #define BMA180_ACC_X_LSB	0x02 /* First of 6 registers of accel data */
+#define BMA180_TEMP		0x08
 #define BMA180_CTRL_REG0	0x0d
 #define BMA180_RESET		0x10
 #define BMA180_BW_TCS		0x20
@@ -49,65 +83,81 @@
 #define BMA180_SMP_SKIP		BIT(0)
 
 /* Bit masks for registers bit fields */
-#define BMA180_RANGE		0x0e /* Range of measured accel values*/
+#define BMA180_RANGE		0x0e /* Range of measured accel values */
 #define BMA180_BW		0xf0 /* Accel bandwidth */
 #define BMA180_MODE_CONFIG	0x03 /* Config operation modes */
 
 /* We have to write this value in reset register to do soft reset */
 #define BMA180_RESET_VAL	0xb6
 
-#define BMA_180_ID_REG_VAL	0x03
+#define BMA180_ID_REG_VAL	0x03
 
 /* Chip power modes */
-#define BMA180_LOW_NOISE	0x00
 #define BMA180_LOW_POWER	0x03
 
-#define BMA180_LOW_NOISE_STR	"low_noise"
-#define BMA180_LOW_POWER_STR	"low_power"
-
-/* Defaults values */
-#define BMA180_DEF_PMODE	0
-#define BMA180_DEF_BW		20
-#define BMA180_DEF_SCALE	2452
-
-/* Available values for sysfs */
-#define BMA180_FLP_FREQ_AVAILABLE \
-	"10 20 40 75 150 300"
-#define BMA180_SCALE_AVAILABLE \
-	"0.001275 0.001863 0.002452 0.003727 0.004903 0.009709 0.019417"
+#define BMA250_RANGE_REG	0x0f
+#define BMA250_BW_REG		0x10
+#define BMA250_POWER_REG	0x11
+#define BMA250_RESET_REG	0x14
+#define BMA250_INT_ENABLE_REG	0x17
+#define BMA250_INT_MAP_REG	0x1a
+#define BMA250_INT_RESET_REG	0x21
+
+#define BMA250_RANGE_MASK	GENMASK(3, 0) /* Range of accel values */
+#define BMA250_BW_MASK		GENMASK(4, 0) /* Accel bandwidth */
+#define BMA250_SUSPEND_MASK	BIT(7) /* chip will sleep */
+#define BMA250_LOWPOWER_MASK	BIT(6)
+#define BMA250_DATA_INTEN_MASK	BIT(4)
+#define BMA250_INT1_DATA_MASK	BIT(0)
+#define BMA250_INT_RESET_MASK	BIT(7) /* Reset pending interrupts */
 
 struct bma180_data {
 	struct i2c_client *client;
 	struct iio_trigger *trig;
+	const struct bma180_part_info *part_info;
 	struct mutex mutex;
-	int sleep_state;
+	bool sleep_state;
 	int scale;
 	int bw;
-	int pmode;
-	char *buff;
+	bool pmode;
+	u8 buff[16]; /* 3x 16-bit + 8-bit + padding + timestamp */
 };
 
-enum bma180_axis {
+enum bma180_chan {
 	AXIS_X,
 	AXIS_Y,
 	AXIS_Z,
+	TEMP
 };
 
-static int bw_table[] = { 10, 20, 40, 75, 150, 300 }; /* Hz */
-static int scale_table[] = { 1275, 1863, 2452, 3727, 4903, 9709, 19417 };
+static int bma180_bw_table[] = { 10, 20, 40, 75, 150, 300 }; /* Hz */
+static int bma180_scale_table[] = { 1275, 1863, 2452, 3727, 4903, 9709, 19417 };
+
+static int bma250_bw_table[] = { 8, 16, 31, 63, 125, 250 }; /* Hz */
+static int bma250_scale_table[] = { 0, 0, 0, 38344, 0, 76590, 0, 0, 153180, 0,
+	0, 0, 306458 };
 
-static int bma180_get_acc_reg(struct bma180_data *data, enum bma180_axis axis)
+static int bma180_get_data_reg(struct bma180_data *data, enum bma180_chan chan)
 {
-	u8 reg = BMA180_ACC_X_LSB + axis * 2;
 	int ret;
 
 	if (data->sleep_state)
 		return -EBUSY;
 
-	ret = i2c_smbus_read_word_data(data->client, reg);
-	if (ret < 0)
-		dev_err(&data->client->dev,
-			"failed to read accel_%c registers\n", 'x' + axis);
+	switch (chan) {
+	case TEMP:
+		ret = i2c_smbus_read_byte_data(data->client, BMA180_TEMP);
+		if (ret < 0)
+			dev_err(&data->client->dev, "failed to read temp register\n");
+		break;
+	default:
+		ret = i2c_smbus_read_word_data(data->client,
+			BMA180_ACC_X_LSB + chan * 2);
+		if (ret < 0)
+			dev_err(&data->client->dev,
+				"failed to read accel_%c register\n",
+				'x' + chan);
+	}
 
 	return ret;
 }
@@ -125,7 +175,8 @@ static int bma180_set_bits(struct bma180_data *data, u8 reg, u8 mask, u8 val)
 
 static int bma180_reset_intr(struct bma180_data *data)
 {
-	int ret = bma180_set_bits(data, BMA180_CTRL_REG0, BMA180_RESET_INT, 1);
+	int ret = bma180_set_bits(data, data->part_info->int_reset_reg,
+		data->part_info->int_reset_mask, 1);
 
 	if (ret)
 		dev_err(&data->client->dev, "failed to reset interrupt\n");
@@ -133,12 +184,10 @@ static int bma180_reset_intr(struct bma180_data *data)
 	return ret;
 }
 
-static int bma180_set_new_data_intr_state(struct bma180_data *data, int state)
+static int bma180_set_new_data_intr_state(struct bma180_data *data, bool state)
 {
-	u8 reg_val = state ? BMA180_NEW_DATA_INT : 0x00;
-	int ret = i2c_smbus_write_byte_data(data->client, BMA180_CTRL_REG3,
-			reg_val);
-
+	int ret = bma180_set_bits(data, data->part_info->int_enable_reg,
+			data->part_info->int_enable_mask, state);
 	if (ret)
 		goto err;
 	ret = bma180_reset_intr(data);
@@ -153,9 +202,10 @@ err:
 	return ret;
 }
 
-static int bma180_set_sleep_state(struct bma180_data *data, int state)
+static int bma180_set_sleep_state(struct bma180_data *data, bool state)
 {
-	int ret = bma180_set_bits(data, BMA180_CTRL_REG0, BMA180_SLEEP, state);
+	int ret = bma180_set_bits(data, data->part_info->sleep_reg,
+		data->part_info->sleep_mask, state);
 
 	if (ret) {
 		dev_err(&data->client->dev,
@@ -167,7 +217,7 @@ static int bma180_set_sleep_state(struct bma180_data *data, int state)
 	return 0;
 }
 
-static int bma180_set_ee_writing_state(struct bma180_data *data, int state)
+static int bma180_set_ee_writing_state(struct bma180_data *data, bool state)
 {
 	int ret = bma180_set_bits(data, BMA180_CTRL_REG0, BMA180_EE_W, state);
 
@@ -185,10 +235,10 @@ static int bma180_set_bw(struct bma180_data *data, int val)
 	if (data->sleep_state)
 		return -EBUSY;
 
-	for (i = 0; i < ARRAY_SIZE(bw_table); ++i) {
-		if (bw_table[i] == val) {
-			ret = bma180_set_bits(data,
-					BMA180_BW_TCS, BMA180_BW, i);
+	for (i = 0; i < data->part_info->num_bw; ++i) {
+		if (data->part_info->bw_table[i] == val) {
+			ret = bma180_set_bits(data, data->part_info->bw_reg,
+				data->part_info->bw_mask, i);
 			if (ret) {
 				dev_err(&data->client->dev,
 					"failed to set bandwidth\n");
@@ -209,10 +259,10 @@ static int bma180_set_scale(struct bma180_data *data, int val)
 	if (data->sleep_state)
 		return -EBUSY;
 
-	for (i = 0; i < ARRAY_SIZE(scale_table); ++i)
-		if (scale_table[i] == val) {
-			ret = bma180_set_bits(data,
-					BMA180_OFFSET_LSB1, BMA180_RANGE, i);
+	for (i = 0; i < data->part_info->num_scales; ++i)
+		if (data->part_info->scale_table[i] == val) {
+			ret = bma180_set_bits(data, data->part_info->scale_reg,
+				data->part_info->scale_mask, i);
 			if (ret) {
 				dev_err(&data->client->dev,
 					"failed to set scale\n");
@@ -225,11 +275,11 @@ static int bma180_set_scale(struct bma180_data *data, int val)
 	return -EINVAL;
 }
 
-static int bma180_set_pmode(struct bma180_data *data, int mode)
+static int bma180_set_pmode(struct bma180_data *data, bool mode)
 {
-	u8 reg_val = mode ? BMA180_LOW_POWER : BMA180_LOW_NOISE;
-	int ret = bma180_set_bits(data, BMA180_TCO_Z, BMA180_MODE_CONFIG,
-			reg_val);
+	u8 reg_val = mode ? data->part_info->lowpower_val : 0;
+	int ret = bma180_set_bits(data, data->part_info->power_reg,
+		data->part_info->power_mask, reg_val);
 
 	if (ret) {
 		dev_err(&data->client->dev, "failed to set power mode\n");
@@ -243,7 +293,7 @@ static int bma180_set_pmode(struct bma180_data *data, int mode)
 static int bma180_soft_reset(struct bma180_data *data)
 {
 	int ret = i2c_smbus_write_byte_data(data->client,
-			BMA180_RESET, BMA180_RESET_VAL);
+		data->part_info->softreset_reg, BMA180_RESET_VAL);
 
 	if (ret)
 		dev_err(&data->client->dev, "failed to reset the chip\n");
@@ -257,57 +307,99 @@ static int bma180_chip_init(struct bma180_data *data)
 	int ret = i2c_smbus_read_byte_data(data->client, BMA180_CHIP_ID);
 
 	if (ret < 0)
-		goto err;
-	if (ret != BMA_180_ID_REG_VAL) {
-		ret = -ENODEV;
-		goto err;
-	}
+		return ret;
+	if (ret != BMA180_ID_REG_VAL)
+		return -ENODEV;
 
 	ret = bma180_soft_reset(data);
 	if (ret)
-		goto err;
+		return ret;
 	/*
 	 * No serial transaction should occur within minimum 10 us
 	 * after soft_reset command
 	 */
 	msleep(20);
 
-	ret = bma180_set_bits(data, BMA180_CTRL_REG0, BMA180_DIS_WAKE_UP, 1);
+	ret = bma180_set_new_data_intr_state(data, false);
+	if (ret)
+		return ret;
+
+	return bma180_set_pmode(data, false);
+}
+
+static int bma180_chip_config(struct bma180_data *data)
+{
+	int ret = bma180_chip_init(data);
+
 	if (ret)
 		goto err;
-	ret = bma180_set_ee_writing_state(data, 1);
+	ret = bma180_set_bits(data, BMA180_CTRL_REG0, BMA180_DIS_WAKE_UP, 1);
 	if (ret)
 		goto err;
-	ret = bma180_set_new_data_intr_state(data, 0);
+	ret = bma180_set_ee_writing_state(data, true);
 	if (ret)
 		goto err;
 	ret = bma180_set_bits(data, BMA180_OFFSET_LSB1, BMA180_SMP_SKIP, 1);
 	if (ret)
 		goto err;
-	ret = bma180_set_pmode(data, BMA180_DEF_PMODE);
+	ret = bma180_set_bw(data, 20); /* 20 Hz */
 	if (ret)
 		goto err;
-	ret = bma180_set_bw(data, BMA180_DEF_BW);
+	ret = bma180_set_scale(data, 2452); /* 2 G */
+	if (ret)
+		goto err;
+
+	return 0;
+
+err:
+	dev_err(&data->client->dev, "failed to config the chip\n");
+	return ret;
+}
+
+static int bma250_chip_config(struct bma180_data *data)
+{
+	int ret = bma180_chip_init(data);
+
 	if (ret)
 		goto err;
-	ret = bma180_set_scale(data, BMA180_DEF_SCALE);
+	ret = bma180_set_bw(data, 16); /* 16 Hz */
+	if (ret)
+		goto err;
+	ret = bma180_set_scale(data, 38344); /* 2 G */
+	if (ret)
+		goto err;
+	ret = bma180_set_bits(data, BMA250_INT_MAP_REG,
+		BMA250_INT1_DATA_MASK, 1);
 	if (ret)
 		goto err;
 
 	return 0;
 
 err:
-	dev_err(&data->client->dev, "failed to init the chip\n");
+	dev_err(&data->client->dev, "failed to config the chip\n");
 	return ret;
 }
 
 static void bma180_chip_disable(struct bma180_data *data)
 {
-	if (bma180_set_new_data_intr_state(data, 0))
+	if (bma180_set_new_data_intr_state(data, false))
 		goto err;
-	if (bma180_set_ee_writing_state(data, 0))
+	if (bma180_set_ee_writing_state(data, false))
+		goto err;
+	if (bma180_set_sleep_state(data, true))
+		goto err;
+
+	return;
+
+err:
+	dev_err(&data->client->dev, "failed to disable the chip\n");
+}
+
+static void bma250_chip_disable(struct bma180_data *data)
+{
+	if (bma180_set_new_data_intr_state(data, false))
 		goto err;
-	if (bma180_set_sleep_state(data, 1))
+	if (bma180_set_sleep_state(data, true))
 		goto err;
 
 	return;
@@ -316,13 +408,51 @@ err:
 	dev_err(&data->client->dev, "failed to disable the chip\n");
 }
 
-static IIO_CONST_ATTR(in_accel_filter_low_pass_3db_frequency_available,
-		BMA180_FLP_FREQ_AVAILABLE);
-static IIO_CONST_ATTR(in_accel_scale_available, BMA180_SCALE_AVAILABLE);
+static ssize_t bma180_show_avail(char *buf, const int *vals, unsigned n,
+				 bool micros)
+{
+	size_t len = 0;
+	int i;
+
+	for (i = 0; i < n; i++) {
+		if (!vals[i])
+			continue;
+		len += scnprintf(buf + len, PAGE_SIZE - len,
+			micros ? "0.%06d " : "%d ", vals[i]);
+	}
+	buf[len - 1] = '\n';
+
+	return len;
+}
+
+static ssize_t bma180_show_filter_freq_avail(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct bma180_data *data = iio_priv(dev_to_iio_dev(dev));
+
+	return bma180_show_avail(buf, data->part_info->bw_table,
+		data->part_info->num_bw, false);
+}
+
+static ssize_t bma180_show_scale_avail(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct bma180_data *data = iio_priv(dev_to_iio_dev(dev));
+
+	return bma180_show_avail(buf, data->part_info->scale_table,
+		data->part_info->num_scales, true);
+}
+
+static IIO_DEVICE_ATTR(in_accel_filter_low_pass_3db_frequency_available,
+	S_IRUGO, bma180_show_filter_freq_avail, NULL, 0);
+
+static IIO_DEVICE_ATTR(in_accel_scale_available,
+	S_IRUGO, bma180_show_scale_avail, NULL, 0);
 
 static struct attribute *bma180_attributes[] = {
-	&iio_const_attr_in_accel_filter_low_pass_3db_frequency_available.dev_attr.attr,
-	&iio_const_attr_in_accel_scale_available.dev_attr.attr,
+	&iio_dev_attr_in_accel_filter_low_pass_3db_frequency_available.
+		dev_attr.attr,
+	&iio_dev_attr_in_accel_scale_available.dev_attr.attr,
 	NULL,
 };
 
@@ -340,22 +470,35 @@ static int bma180_read_raw(struct iio_dev *indio_dev,
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
 		mutex_lock(&data->mutex);
-		if (iio_buffer_enabled(indio_dev))
-			ret = -EBUSY;
-		else
-			ret = bma180_get_acc_reg(data, chan->scan_index);
+		if (iio_buffer_enabled(indio_dev)) {
+			mutex_unlock(&data->mutex);
+			return -EBUSY;
+		}
+		ret = bma180_get_data_reg(data, chan->scan_index);
 		mutex_unlock(&data->mutex);
 		if (ret < 0)
 			return ret;
-		*val = (s16)ret >> chan->scan_type.shift;
+		*val = sign_extend32(ret >> chan->scan_type.shift,
+			chan->scan_type.realbits - 1);
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
 		*val = data->bw;
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		*val = 0;
-		*val2 = data->scale;
-		return IIO_VAL_INT_PLUS_MICRO;
+		switch (chan->type) {
+		case IIO_ACCEL:
+			*val = 0;
+			*val2 = data->scale;
+			return IIO_VAL_INT_PLUS_MICRO;
+		case IIO_TEMP:
+			*val = 500;
+			return IIO_VAL_INT;
+		default:
+			return -EINVAL;
+		}
+	case IIO_CHAN_INFO_OFFSET:
+		*val = 48; /* 0 LSB @ 24 degree C */
+		return IIO_VAL_INT;
 	default:
 		return -EINVAL;
 	}
@@ -387,33 +530,14 @@ static int bma180_write_raw(struct iio_dev *indio_dev,
 	}
 }
 
-static int bma180_update_scan_mode(struct iio_dev *indio_dev,
-		const unsigned long *scan_mask)
-{
-	struct bma180_data *data = iio_priv(indio_dev);
-
-	if (data->buff)
-		devm_kfree(&indio_dev->dev, data->buff);
-	data->buff = devm_kzalloc(&indio_dev->dev,
-			indio_dev->scan_bytes, GFP_KERNEL);
-	if (!data->buff)
-		return -ENOMEM;
-
-	return 0;
-}
-
 static const struct iio_info bma180_info = {
 	.attrs			= &bma180_attrs_group,
 	.read_raw		= bma180_read_raw,
 	.write_raw		= bma180_write_raw,
-	.update_scan_mode	= bma180_update_scan_mode,
 	.driver_module		= THIS_MODULE,
 };
 
-static const char * const bma180_power_modes[] = {
-	BMA180_LOW_NOISE_STR,
-	BMA180_LOW_POWER_STR,
-};
+static const char * const bma180_power_modes[] = { "low_noise", "low_power" };
 
 static int bma180_get_power_mode(struct iio_dev *indio_dev,
 		const struct iio_chan_spec *chan)
@@ -449,7 +573,7 @@ static const struct iio_chan_spec_ext_info bma180_ext_info[] = {
 	{ },
 };
 
-#define BMA180_CHANNEL(_axis) {					\
+#define BMA180_ACC_CHANNEL(_axis, _bits) {				\
 	.type = IIO_ACCEL,						\
 	.modified = 1,							\
 	.channel2 = IIO_MOD_##_axis,					\
@@ -459,18 +583,70 @@ static const struct iio_chan_spec_ext_info bma180_ext_info[] = {
 	.scan_index = AXIS_##_axis,					\
 	.scan_type = {							\
 		.sign = 's',						\
-		.realbits = 14,						\
+		.realbits = _bits,					\
 		.storagebits = 16,					\
-		.shift = 2,						\
+		.shift = 16 - _bits,					\
 	},								\
 	.ext_info = bma180_ext_info,					\
 }
 
+#define BMA180_TEMP_CHANNEL {						\
+	.type = IIO_TEMP,						\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |			\
+		BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OFFSET),	\
+	.scan_index = TEMP,						\
+	.scan_type = {							\
+		.sign = 's',						\
+		.realbits = 8,						\
+		.storagebits = 16,					\
+	},								\
+}
+
 static const struct iio_chan_spec bma180_channels[] = {
-	BMA180_CHANNEL(X),
-	BMA180_CHANNEL(Y),
-	BMA180_CHANNEL(Z),
-	IIO_CHAN_SOFT_TIMESTAMP(3),
+	BMA180_ACC_CHANNEL(X, 14),
+	BMA180_ACC_CHANNEL(Y, 14),
+	BMA180_ACC_CHANNEL(Z, 14),
+	BMA180_TEMP_CHANNEL,
+	IIO_CHAN_SOFT_TIMESTAMP(4),
+};
+
+static const struct iio_chan_spec bma250_channels[] = {
+	BMA180_ACC_CHANNEL(X, 10),
+	BMA180_ACC_CHANNEL(Y, 10),
+	BMA180_ACC_CHANNEL(Z, 10),
+	BMA180_TEMP_CHANNEL,
+	IIO_CHAN_SOFT_TIMESTAMP(4),
+};
+
+static const struct bma180_part_info bma180_part_info[] = {
+	[BMA180] = {
+		bma180_channels, ARRAY_SIZE(bma180_channels),
+		bma180_scale_table, ARRAY_SIZE(bma180_scale_table),
+		bma180_bw_table, ARRAY_SIZE(bma180_bw_table),
+		BMA180_CTRL_REG0, BMA180_RESET_INT,
+		BMA180_CTRL_REG0, BMA180_SLEEP,
+		BMA180_BW_TCS, BMA180_BW,
+		BMA180_OFFSET_LSB1, BMA180_RANGE,
+		BMA180_TCO_Z, BMA180_MODE_CONFIG, BMA180_LOW_POWER,
+		BMA180_CTRL_REG3, BMA180_NEW_DATA_INT,
+		BMA180_RESET,
+		bma180_chip_config,
+		bma180_chip_disable,
+	},
+	[BMA250] = {
+		bma250_channels, ARRAY_SIZE(bma250_channels),
+		bma250_scale_table, ARRAY_SIZE(bma250_scale_table),
+		bma250_bw_table, ARRAY_SIZE(bma250_bw_table),
+		BMA250_INT_RESET_REG, BMA250_INT_RESET_MASK,
+		BMA250_POWER_REG, BMA250_SUSPEND_MASK,
+		BMA250_BW_REG, BMA250_BW_MASK,
+		BMA250_RANGE_REG, BMA250_RANGE_MASK,
+		BMA250_POWER_REG, BMA250_LOWPOWER_MASK, 1,
+		BMA250_INT_ENABLE_REG, BMA250_DATA_INTEN_MASK,
+		BMA250_RESET_REG,
+		bma250_chip_config,
+		bma250_chip_disable,
+	},
 };
 
 static irqreturn_t bma180_trigger_handler(int irq, void *p)
@@ -485,13 +661,14 @@ static irqreturn_t bma180_trigger_handler(int irq, void *p)
 
 	for_each_set_bit(bit, indio_dev->buffer->scan_mask,
 			 indio_dev->masklength) {
-		ret = bma180_get_acc_reg(data, bit);
+		ret = bma180_get_data_reg(data, bit);
 		if (ret < 0) {
 			mutex_unlock(&data->mutex);
 			goto err;
 		}
 		((s16 *)data->buff)[i++] = ret;
 	}
+
 	mutex_unlock(&data->mutex);
 
 	iio_push_to_buffers_with_timestamp(indio_dev, data->buff, time_ns);
@@ -529,7 +706,6 @@ static int bma180_probe(struct i2c_client *client,
 {
 	struct bma180_data *data;
 	struct iio_dev *indio_dev;
-	struct iio_trigger *trig;
 	int ret;
 
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
@@ -539,43 +715,45 @@ static int bma180_probe(struct i2c_client *client,
 	data = iio_priv(indio_dev);
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
+	data->part_info = &bma180_part_info[id->driver_data];
 
-	ret = bma180_chip_init(data);
+	ret = data->part_info->chip_config(data);
 	if (ret < 0)
 		goto err_chip_disable;
 
 	mutex_init(&data->mutex);
-
 	indio_dev->dev.parent = &client->dev;
-	indio_dev->channels = bma180_channels;
-	indio_dev->num_channels = ARRAY_SIZE(bma180_channels);
-	indio_dev->name = BMA180_DRV_NAME;
+	indio_dev->channels = data->part_info->channels;
+	indio_dev->num_channels = data->part_info->num_channels;
+	indio_dev->name = id->name;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &bma180_info;
 
-	trig = iio_trigger_alloc("%s-dev%d", indio_dev->name, indio_dev->id);
-	if (!trig) {
-		ret = -ENOMEM;
-		goto err_chip_disable;
-	}
+	if (client->irq > 0) {
+		data->trig = iio_trigger_alloc("%s-dev%d", indio_dev->name,
+			indio_dev->id);
+		if (!data->trig) {
+			ret = -ENOMEM;
+			goto err_chip_disable;
+		}
 
-	ret = devm_request_irq(&client->dev, client->irq,
-			iio_trigger_generic_data_rdy_poll,
-			IRQF_TRIGGER_RISING, BMA180_IRQ_NAME, trig);
-	if (ret) {
-		dev_err(&client->dev, "unable to request IRQ\n");
-		goto err_trigger_free;
-	}
+		ret = devm_request_irq(&client->dev, client->irq,
+			iio_trigger_generic_data_rdy_poll, IRQF_TRIGGER_RISING,
+			"bma180_event", data->trig);
+		if (ret) {
+			dev_err(&client->dev, "unable to request IRQ\n");
+			goto err_trigger_free;
+		}
 
-	trig->dev.parent = &client->dev;
-	trig->ops = &bma180_trigger_ops;
-	iio_trigger_set_drvdata(trig, indio_dev);
-	data->trig = trig;
-	indio_dev->trig = iio_trigger_get(trig);
+		data->trig->dev.parent = &client->dev;
+		data->trig->ops = &bma180_trigger_ops;
+		iio_trigger_set_drvdata(data->trig, indio_dev);
+		indio_dev->trig = iio_trigger_get(data->trig);
 
-	ret = iio_trigger_register(trig);
-	if (ret)
-		goto err_trigger_free;
+		ret = iio_trigger_register(data->trig);
+		if (ret)
+			goto err_trigger_free;
+	}
 
 	ret = iio_triggered_buffer_setup(indio_dev, NULL,
 			bma180_trigger_handler, NULL);
@@ -595,11 +773,12 @@ static int bma180_probe(struct i2c_client *client,
 err_buffer_cleanup:
 	iio_triggered_buffer_cleanup(indio_dev);
 err_trigger_unregister:
-	iio_trigger_unregister(trig);
+	if (data->trig)
+		iio_trigger_unregister(data->trig);
 err_trigger_free:
-	iio_trigger_free(trig);
+	iio_trigger_free(data->trig);
 err_chip_disable:
-	bma180_chip_disable(data);
+	data->part_info->chip_disable(data);
 
 	return ret;
 }
@@ -611,11 +790,13 @@ static int bma180_remove(struct i2c_client *client)
 
 	iio_device_unregister(indio_dev);
 	iio_triggered_buffer_cleanup(indio_dev);
-	iio_trigger_unregister(data->trig);
-	iio_trigger_free(data->trig);
+	if (data->trig) {
+		iio_trigger_unregister(data->trig);
+		iio_trigger_free(data->trig);
+	}
 
 	mutex_lock(&data->mutex);
-	bma180_chip_disable(data);
+	data->part_info->chip_disable(data);
 	mutex_unlock(&data->mutex);
 
 	return 0;
@@ -629,7 +810,7 @@ static int bma180_suspend(struct device *dev)
 	int ret;
 
 	mutex_lock(&data->mutex);
-	ret = bma180_set_sleep_state(data, 1);
+	ret = bma180_set_sleep_state(data, true);
 	mutex_unlock(&data->mutex);
 
 	return ret;
@@ -642,7 +823,7 @@ static int bma180_resume(struct device *dev)
 	int ret;
 
 	mutex_lock(&data->mutex);
-	ret = bma180_set_sleep_state(data, 0);
+	ret = bma180_set_sleep_state(data, false);
 	mutex_unlock(&data->mutex);
 
 	return ret;
@@ -654,27 +835,28 @@ static SIMPLE_DEV_PM_OPS(bma180_pm_ops, bma180_suspend, bma180_resume);
 #define BMA180_PM_OPS NULL
 #endif
 
-static struct i2c_device_id bma180_id[] = {
-	{ BMA180_DRV_NAME, 0 },
+static struct i2c_device_id bma180_ids[] = {
+	{ "bma180", BMA180 },
+	{ "bma250", BMA250 },
 	{ }
 };
 
-MODULE_DEVICE_TABLE(i2c, bma180_id);
+MODULE_DEVICE_TABLE(i2c, bma180_ids);
 
 static struct i2c_driver bma180_driver = {
 	.driver = {
-		.name	= BMA180_DRV_NAME,
+		.name	= "bma180",
 		.owner	= THIS_MODULE,
 		.pm	= BMA180_PM_OPS,
 	},
 	.probe		= bma180_probe,
 	.remove		= bma180_remove,
-	.id_table	= bma180_id,
+	.id_table	= bma180_ids,
 };
 
 module_i2c_driver(bma180_driver);
 
 MODULE_AUTHOR("Kravchenko Oleksandr <x0199363@ti.com>");
 MODULE_AUTHOR("Texas Instruments, Inc.");
-MODULE_DESCRIPTION("Bosch BMA180 triaxial acceleration sensor");
+MODULE_DESCRIPTION("Bosch BMA180/BMA250 triaxial acceleration sensor");
 MODULE_LICENSE("GPL");
diff --git a/drivers/iio/accel/bmc150-accel.c b/drivers/iio/accel/bmc150-accel.c
new file mode 100644
index 0000000..22c096c
--- /dev/null
+++ b/drivers/iio/accel/bmc150-accel.c
@@ -0,0 +1,1430 @@
+/*
+ * 3-axis accelerometer driver supporting following Bosch-Sensortec chips:
+ *  - BMC150
+ *  - BMI055
+ *  - BMA255
+ *  - BMA250E
+ *  - BMA222E
+ *  - BMA280
+ *
+ * Copyright (c) 2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/acpi.h>
+#include <linux/gpio/consumer.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/events.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+
+#define BMC150_ACCEL_DRV_NAME			"bmc150_accel"
+#define BMC150_ACCEL_IRQ_NAME			"bmc150_accel_event"
+#define BMC150_ACCEL_GPIO_NAME			"bmc150_accel_int"
+
+#define BMC150_ACCEL_REG_CHIP_ID		0x00
+
+#define BMC150_ACCEL_REG_INT_STATUS_2		0x0B
+#define BMC150_ACCEL_ANY_MOTION_MASK		0x07
+#define BMC150_ACCEL_ANY_MOTION_BIT_SIGN	BIT(3)
+
+#define BMC150_ACCEL_REG_PMU_LPW		0x11
+#define BMC150_ACCEL_PMU_MODE_MASK		0xE0
+#define BMC150_ACCEL_PMU_MODE_SHIFT		5
+#define BMC150_ACCEL_PMU_BIT_SLEEP_DUR_MASK	0x17
+#define BMC150_ACCEL_PMU_BIT_SLEEP_DUR_SHIFT	1
+
+#define BMC150_ACCEL_REG_PMU_RANGE		0x0F
+
+#define BMC150_ACCEL_DEF_RANGE_2G		0x03
+#define BMC150_ACCEL_DEF_RANGE_4G		0x05
+#define BMC150_ACCEL_DEF_RANGE_8G		0x08
+#define BMC150_ACCEL_DEF_RANGE_16G		0x0C
+
+/* Default BW: 125Hz */
+#define BMC150_ACCEL_REG_PMU_BW		0x10
+#define BMC150_ACCEL_DEF_BW			125
+
+#define BMC150_ACCEL_REG_INT_MAP_0		0x19
+#define BMC150_ACCEL_INT_MAP_0_BIT_SLOPE	BIT(2)
+
+#define BMC150_ACCEL_REG_INT_MAP_1		0x1A
+#define BMC150_ACCEL_INT_MAP_1_BIT_DATA	BIT(0)
+
+#define BMC150_ACCEL_REG_INT_RST_LATCH		0x21
+#define BMC150_ACCEL_INT_MODE_LATCH_RESET	0x80
+#define BMC150_ACCEL_INT_MODE_LATCH_INT	0x0F
+#define BMC150_ACCEL_INT_MODE_NON_LATCH_INT	0x00
+
+#define BMC150_ACCEL_REG_INT_EN_0		0x16
+#define BMC150_ACCEL_INT_EN_BIT_SLP_X		BIT(0)
+#define BMC150_ACCEL_INT_EN_BIT_SLP_Y		BIT(1)
+#define BMC150_ACCEL_INT_EN_BIT_SLP_Z		BIT(2)
+
+#define BMC150_ACCEL_REG_INT_EN_1		0x17
+#define BMC150_ACCEL_INT_EN_BIT_DATA_EN	BIT(4)
+
+#define BMC150_ACCEL_REG_INT_OUT_CTRL		0x20
+#define BMC150_ACCEL_INT_OUT_CTRL_INT1_LVL	BIT(0)
+
+#define BMC150_ACCEL_REG_INT_5			0x27
+#define BMC150_ACCEL_SLOPE_DUR_MASK		0x03
+
+#define BMC150_ACCEL_REG_INT_6			0x28
+#define BMC150_ACCEL_SLOPE_THRES_MASK		0xFF
+
+/* Slope duration in terms of number of samples */
+#define BMC150_ACCEL_DEF_SLOPE_DURATION	2
+/* in terms of multiples of g's/LSB, based on range */
+#define BMC150_ACCEL_DEF_SLOPE_THRESHOLD	5
+
+#define BMC150_ACCEL_REG_XOUT_L		0x02
+
+#define BMC150_ACCEL_MAX_STARTUP_TIME_MS	100
+
+/* Sleep Duration values */
+#define BMC150_ACCEL_SLEEP_500_MICRO		0x05
+#define BMC150_ACCEL_SLEEP_1_MS		0x06
+#define BMC150_ACCEL_SLEEP_2_MS		0x07
+#define BMC150_ACCEL_SLEEP_4_MS		0x08
+#define BMC150_ACCEL_SLEEP_6_MS		0x09
+#define BMC150_ACCEL_SLEEP_10_MS		0x0A
+#define BMC150_ACCEL_SLEEP_25_MS		0x0B
+#define BMC150_ACCEL_SLEEP_50_MS		0x0C
+#define BMC150_ACCEL_SLEEP_100_MS		0x0D
+#define BMC150_ACCEL_SLEEP_500_MS		0x0E
+#define BMC150_ACCEL_SLEEP_1_SEC		0x0F
+
+#define BMC150_ACCEL_REG_TEMP			0x08
+#define BMC150_ACCEL_TEMP_CENTER_VAL		24
+
+#define BMC150_ACCEL_AXIS_TO_REG(axis)	(BMC150_ACCEL_REG_XOUT_L + (axis * 2))
+#define BMC150_AUTO_SUSPEND_DELAY_MS		2000
+
+enum bmc150_accel_axis {
+	AXIS_X,
+	AXIS_Y,
+	AXIS_Z,
+};
+
+enum bmc150_power_modes {
+	BMC150_ACCEL_SLEEP_MODE_NORMAL,
+	BMC150_ACCEL_SLEEP_MODE_DEEP_SUSPEND,
+	BMC150_ACCEL_SLEEP_MODE_LPM,
+	BMC150_ACCEL_SLEEP_MODE_SUSPEND = 0x04,
+};
+
+struct bmc150_scale_info {
+	int scale;
+	u8 reg_range;
+};
+
+struct bmc150_accel_chip_info {
+	u8 chip_id;
+	const struct iio_chan_spec *channels;
+	int num_channels;
+	const struct bmc150_scale_info scale_table[4];
+};
+
+struct bmc150_accel_data {
+	struct i2c_client *client;
+	struct iio_trigger *dready_trig;
+	struct iio_trigger *motion_trig;
+	struct mutex mutex;
+	s16 buffer[8];
+	u8 bw_bits;
+	u32 slope_dur;
+	u32 slope_thres;
+	u32 range;
+	int ev_enable_state;
+	bool dready_trigger_on;
+	bool motion_trigger_on;
+	int64_t timestamp;
+	const struct bmc150_accel_chip_info *chip_info;
+};
+
+static const struct {
+	int val;
+	int val2;
+	u8 bw_bits;
+} bmc150_accel_samp_freq_table[] = { {7, 810000, 0x08},
+				     {15, 630000, 0x09},
+				     {31, 250000, 0x0A},
+				     {62, 500000, 0x0B},
+				     {125, 0, 0x0C},
+				     {250, 0, 0x0D},
+				     {500, 0, 0x0E},
+				     {1000, 0, 0x0F} };
+
+static const struct {
+	int bw_bits;
+	int msec;
+} bmc150_accel_sample_upd_time[] = { {0x08, 64},
+				     {0x09, 32},
+				     {0x0A, 16},
+				     {0x0B, 8},
+				     {0x0C, 4},
+				     {0x0D, 2},
+				     {0x0E, 1},
+				     {0x0F, 1} };
+
+static const struct {
+	int sleep_dur;
+	u8 reg_value;
+} bmc150_accel_sleep_value_table[] = { {0, 0},
+				       {500, BMC150_ACCEL_SLEEP_500_MICRO},
+				       {1000, BMC150_ACCEL_SLEEP_1_MS},
+				       {2000, BMC150_ACCEL_SLEEP_2_MS},
+				       {4000, BMC150_ACCEL_SLEEP_4_MS},
+				       {6000, BMC150_ACCEL_SLEEP_6_MS},
+				       {10000, BMC150_ACCEL_SLEEP_10_MS},
+				       {25000, BMC150_ACCEL_SLEEP_25_MS},
+				       {50000, BMC150_ACCEL_SLEEP_50_MS},
+				       {100000, BMC150_ACCEL_SLEEP_100_MS},
+				       {500000, BMC150_ACCEL_SLEEP_500_MS},
+				       {1000000, BMC150_ACCEL_SLEEP_1_SEC} };
+
+
+static int bmc150_accel_set_mode(struct bmc150_accel_data *data,
+				 enum bmc150_power_modes mode,
+				 int dur_us)
+{
+	int i;
+	int ret;
+	u8 lpw_bits;
+	int dur_val = -1;
+
+	if (dur_us > 0) {
+		for (i = 0; i < ARRAY_SIZE(bmc150_accel_sleep_value_table);
+									 ++i) {
+			if (bmc150_accel_sleep_value_table[i].sleep_dur ==
+									dur_us)
+				dur_val =
+				bmc150_accel_sleep_value_table[i].reg_value;
+		}
+	} else
+		dur_val = 0;
+
+	if (dur_val < 0)
+		return -EINVAL;
+
+	lpw_bits = mode << BMC150_ACCEL_PMU_MODE_SHIFT;
+	lpw_bits |= (dur_val << BMC150_ACCEL_PMU_BIT_SLEEP_DUR_SHIFT);
+
+	dev_dbg(&data->client->dev, "Set Mode bits %x\n", lpw_bits);
+
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMC150_ACCEL_REG_PMU_LPW, lpw_bits);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_pmu_lpw\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int bmc150_accel_set_bw(struct bmc150_accel_data *data, int val,
+			       int val2)
+{
+	int i;
+	int ret;
+
+	for (i = 0; i < ARRAY_SIZE(bmc150_accel_samp_freq_table); ++i) {
+		if (bmc150_accel_samp_freq_table[i].val == val &&
+				bmc150_accel_samp_freq_table[i].val2 == val2) {
+			ret = i2c_smbus_write_byte_data(
+				data->client,
+				BMC150_ACCEL_REG_PMU_BW,
+				bmc150_accel_samp_freq_table[i].bw_bits);
+			if (ret < 0)
+				return ret;
+
+			data->bw_bits =
+				bmc150_accel_samp_freq_table[i].bw_bits;
+			return 0;
+		}
+	}
+
+	return -EINVAL;
+}
+
+static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
+{
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(data->client, BMC150_ACCEL_REG_CHIP_ID);
+	if (ret < 0) {
+		dev_err(&data->client->dev,
+			"Error: Reading chip id\n");
+		return ret;
+	}
+
+	dev_dbg(&data->client->dev, "Chip Id %x\n", ret);
+	if (ret != data->chip_info->chip_id) {
+		dev_err(&data->client->dev, "Invalid chip %x\n", ret);
+		return -ENODEV;
+	}
+
+	ret = bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
+	if (ret < 0)
+		return ret;
+
+	/* Set Bandwidth */
+	ret = bmc150_accel_set_bw(data, BMC150_ACCEL_DEF_BW, 0);
+	if (ret < 0)
+		return ret;
+
+	/* Set Default Range */
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMC150_ACCEL_REG_PMU_RANGE,
+					BMC150_ACCEL_DEF_RANGE_4G);
+	if (ret < 0) {
+		dev_err(&data->client->dev,
+					"Error writing reg_pmu_range\n");
+		return ret;
+	}
+
+	data->range = BMC150_ACCEL_DEF_RANGE_4G;
+
+	/* Set default slope duration */
+	ret = i2c_smbus_read_byte_data(data->client, BMC150_ACCEL_REG_INT_5);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_int_5\n");
+		return ret;
+	}
+	data->slope_dur |= BMC150_ACCEL_DEF_SLOPE_DURATION;
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMC150_ACCEL_REG_INT_5,
+					data->slope_dur);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_int_5\n");
+		return ret;
+	}
+	dev_dbg(&data->client->dev, "slope_dur %x\n", data->slope_dur);
+
+	/* Set default slope thresholds */
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMC150_ACCEL_REG_INT_6,
+					BMC150_ACCEL_DEF_SLOPE_THRESHOLD);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_int_6\n");
+		return ret;
+	}
+	data->slope_thres = BMC150_ACCEL_DEF_SLOPE_THRESHOLD;
+	dev_dbg(&data->client->dev, "slope_thres %x\n", data->slope_thres);
+
+	/* Set default as latched interrupts */
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMC150_ACCEL_REG_INT_RST_LATCH,
+					BMC150_ACCEL_INT_MODE_LATCH_INT |
+					BMC150_ACCEL_INT_MODE_LATCH_RESET);
+	if (ret < 0) {
+		dev_err(&data->client->dev,
+			"Error writing reg_int_rst_latch\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int bmc150_accel_setup_any_motion_interrupt(
+					struct bmc150_accel_data *data,
+					bool status)
+{
+	int ret;
+
+	/* Enable/Disable INT1 mapping */
+	ret = i2c_smbus_read_byte_data(data->client,
+				       BMC150_ACCEL_REG_INT_MAP_0);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_int_map_0\n");
+		return ret;
+	}
+	if (status)
+		ret |= BMC150_ACCEL_INT_MAP_0_BIT_SLOPE;
+	else
+		ret &= ~BMC150_ACCEL_INT_MAP_0_BIT_SLOPE;
+
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMC150_ACCEL_REG_INT_MAP_0,
+					ret);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_int_map_0\n");
+		return ret;
+	}
+
+	if (status) {
+		/* Set slope duration (no of samples) */
+		ret = i2c_smbus_write_byte_data(data->client,
+						BMC150_ACCEL_REG_INT_5,
+						data->slope_dur);
+		if (ret < 0) {
+			dev_err(&data->client->dev, "Error write reg_int_5\n");
+			return ret;
+		}
+
+		/* Set slope thresholds */
+		ret = i2c_smbus_write_byte_data(data->client,
+						BMC150_ACCEL_REG_INT_6,
+						data->slope_thres);
+		if (ret < 0) {
+			dev_err(&data->client->dev, "Error write reg_int_6\n");
+			return ret;
+		}
+
+		/*
+		 * New data interrupt is always non-latched,
+		 * which will have higher priority, so no need
+		 * to set latched mode, we will be flooded anyway with INTR
+		 */
+		if (!data->dready_trigger_on) {
+			ret = i2c_smbus_write_byte_data(data->client,
+					BMC150_ACCEL_REG_INT_RST_LATCH,
+					BMC150_ACCEL_INT_MODE_LATCH_INT |
+					BMC150_ACCEL_INT_MODE_LATCH_RESET);
+			if (ret < 0) {
+				dev_err(&data->client->dev,
+					"Error writing reg_int_rst_latch\n");
+				return ret;
+			}
+		}
+
+		ret = i2c_smbus_write_byte_data(data->client,
+						BMC150_ACCEL_REG_INT_EN_0,
+						BMC150_ACCEL_INT_EN_BIT_SLP_X |
+						BMC150_ACCEL_INT_EN_BIT_SLP_Y |
+						BMC150_ACCEL_INT_EN_BIT_SLP_Z);
+	} else
+		ret = i2c_smbus_write_byte_data(data->client,
+						BMC150_ACCEL_REG_INT_EN_0,
+						0);
+
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_int_en_0\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int bmc150_accel_setup_new_data_interrupt(struct bmc150_accel_data *data,
+					   bool status)
+{
+	int ret;
+
+	/* Enable/Disable INT1 mapping */
+	ret = i2c_smbus_read_byte_data(data->client,
+				       BMC150_ACCEL_REG_INT_MAP_1);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_int_map_1\n");
+		return ret;
+	}
+	if (status)
+		ret |= BMC150_ACCEL_INT_MAP_1_BIT_DATA;
+	else
+		ret &= ~BMC150_ACCEL_INT_MAP_1_BIT_DATA;
+
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMC150_ACCEL_REG_INT_MAP_1,
+					ret);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_int_map_1\n");
+		return ret;
+	}
+
+	if (status) {
+		/*
+		 * Set non latched mode interrupt and clear any latched
+		 * interrupt
+		 */
+		ret = i2c_smbus_write_byte_data(data->client,
+					BMC150_ACCEL_REG_INT_RST_LATCH,
+					BMC150_ACCEL_INT_MODE_NON_LATCH_INT |
+					BMC150_ACCEL_INT_MODE_LATCH_RESET);
+		if (ret < 0) {
+			dev_err(&data->client->dev,
+				"Error writing reg_int_rst_latch\n");
+			return ret;
+		}
+
+		ret = i2c_smbus_write_byte_data(data->client,
+					BMC150_ACCEL_REG_INT_EN_1,
+					BMC150_ACCEL_INT_EN_BIT_DATA_EN);
+
+	} else {
+		/* Restore default interrupt mode */
+		ret = i2c_smbus_write_byte_data(data->client,
+					BMC150_ACCEL_REG_INT_RST_LATCH,
+					BMC150_ACCEL_INT_MODE_LATCH_INT |
+					BMC150_ACCEL_INT_MODE_LATCH_RESET);
+		if (ret < 0) {
+			dev_err(&data->client->dev,
+				"Error writing reg_int_rst_latch\n");
+			return ret;
+		}
+
+		ret = i2c_smbus_write_byte_data(data->client,
+						BMC150_ACCEL_REG_INT_EN_1,
+						0);
+	}
+
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_int_en_1\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int bmc150_accel_get_bw(struct bmc150_accel_data *data, int *val,
+			       int *val2)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(bmc150_accel_samp_freq_table); ++i) {
+		if (bmc150_accel_samp_freq_table[i].bw_bits == data->bw_bits) {
+			*val = bmc150_accel_samp_freq_table[i].val;
+			*val2 = bmc150_accel_samp_freq_table[i].val2;
+			return IIO_VAL_INT_PLUS_MICRO;
+		}
+	}
+
+	return -EINVAL;
+}
+
+#ifdef CONFIG_PM_RUNTIME
+static int bmc150_accel_get_startup_times(struct bmc150_accel_data *data)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(bmc150_accel_sample_upd_time); ++i) {
+		if (bmc150_accel_sample_upd_time[i].bw_bits == data->bw_bits)
+			return bmc150_accel_sample_upd_time[i].msec;
+	}
+
+	return BMC150_ACCEL_MAX_STARTUP_TIME_MS;
+}
+
+static int bmc150_accel_set_power_state(struct bmc150_accel_data *data, bool on)
+{
+	int ret;
+
+	if (on)
+		ret = pm_runtime_get_sync(&data->client->dev);
+	else {
+		pm_runtime_mark_last_busy(&data->client->dev);
+		ret = pm_runtime_put_autosuspend(&data->client->dev);
+	}
+	if (ret < 0) {
+		dev_err(&data->client->dev,
+			"Failed: bmc150_accel_set_power_state for %d\n", on);
+		return ret;
+	}
+
+	return 0;
+}
+#else
+static int bmc150_accel_set_power_state(struct bmc150_accel_data *data, bool on)
+{
+	return 0;
+}
+#endif
+
+static int bmc150_accel_set_scale(struct bmc150_accel_data *data, int val)
+{
+	int ret, i;
+
+	for (i = 0; i < ARRAY_SIZE(data->chip_info->scale_table); ++i) {
+		if (data->chip_info->scale_table[i].scale == val) {
+			ret = i2c_smbus_write_byte_data(
+				     data->client,
+				     BMC150_ACCEL_REG_PMU_RANGE,
+				     data->chip_info->scale_table[i].reg_range);
+			if (ret < 0) {
+				dev_err(&data->client->dev,
+					"Error writing pmu_range\n");
+				return ret;
+			}
+
+			data->range = data->chip_info->scale_table[i].reg_range;
+			return 0;
+		}
+	}
+
+	return -EINVAL;
+}
+
+static int bmc150_accel_get_temp(struct bmc150_accel_data *data, int *val)
+{
+	int ret;
+
+	mutex_lock(&data->mutex);
+
+	ret = i2c_smbus_read_byte_data(data->client, BMC150_ACCEL_REG_TEMP);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_temp\n");
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+	*val = sign_extend32(ret, 7);
+
+	mutex_unlock(&data->mutex);
+
+	return IIO_VAL_INT;
+}
+
+static int bmc150_accel_get_axis(struct bmc150_accel_data *data,
+				 struct iio_chan_spec const *chan,
+				 int *val)
+{
+	int ret;
+	int axis = chan->scan_index;
+
+	mutex_lock(&data->mutex);
+	ret = bmc150_accel_set_power_state(data, true);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+
+	ret = i2c_smbus_read_word_data(data->client,
+				       BMC150_ACCEL_AXIS_TO_REG(axis));
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading axis %d\n", axis);
+		bmc150_accel_set_power_state(data, false);
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+	*val = sign_extend32(ret >> chan->scan_type.shift,
+			     chan->scan_type.realbits - 1);
+	ret = bmc150_accel_set_power_state(data, false);
+	mutex_unlock(&data->mutex);
+	if (ret < 0)
+		return ret;
+
+	return IIO_VAL_INT;
+}
+
+static int bmc150_accel_read_raw(struct iio_dev *indio_dev,
+				 struct iio_chan_spec const *chan,
+				 int *val, int *val2, long mask)
+{
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		switch (chan->type) {
+		case IIO_TEMP:
+			return bmc150_accel_get_temp(data, val);
+		case IIO_ACCEL:
+			if (iio_buffer_enabled(indio_dev))
+				return -EBUSY;
+			else
+				return bmc150_accel_get_axis(data, chan, val);
+		default:
+			return -EINVAL;
+		}
+	case IIO_CHAN_INFO_OFFSET:
+		if (chan->type == IIO_TEMP) {
+			*val = BMC150_ACCEL_TEMP_CENTER_VAL;
+			return IIO_VAL_INT;
+		} else
+			return -EINVAL;
+	case IIO_CHAN_INFO_SCALE:
+		*val = 0;
+		switch (chan->type) {
+		case IIO_TEMP:
+			*val2 = 500000;
+			return IIO_VAL_INT_PLUS_MICRO;
+		case IIO_ACCEL:
+		{
+			int i;
+			const struct bmc150_scale_info *si;
+			int st_size = ARRAY_SIZE(data->chip_info->scale_table);
+
+			for (i = 0; i < st_size; ++i) {
+				si = &data->chip_info->scale_table[i];
+				if (si->reg_range == data->range) {
+					*val2 = si->scale;
+					return IIO_VAL_INT_PLUS_MICRO;
+				}
+			}
+			return -EINVAL;
+		}
+		default:
+			return -EINVAL;
+		}
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		mutex_lock(&data->mutex);
+		ret = bmc150_accel_get_bw(data, val, val2);
+		mutex_unlock(&data->mutex);
+		return ret;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int bmc150_accel_write_raw(struct iio_dev *indio_dev,
+				  struct iio_chan_spec const *chan,
+				  int val, int val2, long mask)
+{
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		mutex_lock(&data->mutex);
+		ret = bmc150_accel_set_bw(data, val, val2);
+		mutex_unlock(&data->mutex);
+		break;
+	case IIO_CHAN_INFO_SCALE:
+		if (val)
+			return -EINVAL;
+
+		mutex_lock(&data->mutex);
+		ret = bmc150_accel_set_scale(data, val2);
+		mutex_unlock(&data->mutex);
+		return ret;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int bmc150_accel_read_event(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 bmc150_accel_data *data = iio_priv(indio_dev);
+
+	*val2 = 0;
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		*val = data->slope_thres;
+		break;
+	case IIO_EV_INFO_PERIOD:
+		*val = data->slope_dur & BMC150_ACCEL_SLOPE_DUR_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return IIO_VAL_INT;
+}
+
+static int bmc150_accel_write_event(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 bmc150_accel_data *data = iio_priv(indio_dev);
+
+	if (data->ev_enable_state)
+		return -EBUSY;
+
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		data->slope_thres = val;
+		break;
+	case IIO_EV_INFO_PERIOD:
+		data->slope_dur &= ~BMC150_ACCEL_SLOPE_DUR_MASK;
+		data->slope_dur |= val & BMC150_ACCEL_SLOPE_DUR_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int bmc150_accel_read_event_config(struct iio_dev *indio_dev,
+					  const struct iio_chan_spec *chan,
+					  enum iio_event_type type,
+					  enum iio_event_direction dir)
+{
+
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+
+	return data->ev_enable_state;
+}
+
+static int bmc150_accel_write_event_config(struct iio_dev *indio_dev,
+					   const struct iio_chan_spec *chan,
+					   enum iio_event_type type,
+					   enum iio_event_direction dir,
+					   int state)
+{
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	int ret;
+
+	if (state && data->ev_enable_state)
+		return 0;
+
+	mutex_lock(&data->mutex);
+
+	if (!state && data->motion_trigger_on) {
+		data->ev_enable_state = 0;
+		mutex_unlock(&data->mutex);
+		return 0;
+	}
+
+	/*
+	 * We will expect the enable and disable to do operation in
+	 * in reverse order. This will happen here anyway as our
+	 * resume operation uses sync mode runtime pm calls, the
+	 * suspend operation will be delayed by autosuspend delay
+	 * So the disable operation will still happen in reverse of
+	 * enable operation. When runtime pm is disabled the mode
+	 * is always on so sequence doesn't matter
+	 */
+
+	ret = bmc150_accel_set_power_state(data, state);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+
+	ret =  bmc150_accel_setup_any_motion_interrupt(data, state);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+
+	data->ev_enable_state = state;
+	mutex_unlock(&data->mutex);
+
+	return 0;
+}
+
+static int bmc150_accel_validate_trigger(struct iio_dev *indio_dev,
+				   struct iio_trigger *trig)
+{
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+
+	if (data->dready_trig != trig && data->motion_trig != trig)
+		return -EINVAL;
+
+	return 0;
+}
+
+static IIO_CONST_ATTR_SAMP_FREQ_AVAIL(
+		"7.810000 15.630000 31.250000 62.500000 125 250 500 1000");
+
+static struct attribute *bmc150_accel_attributes[] = {
+	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group bmc150_accel_attrs_group = {
+	.attrs = bmc150_accel_attributes,
+};
+
+static const struct iio_event_spec bmc150_accel_event = {
+		.type = IIO_EV_TYPE_ROC,
+		.dir = IIO_EV_DIR_RISING | IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+				 BIT(IIO_EV_INFO_ENABLE) |
+				 BIT(IIO_EV_INFO_PERIOD)
+};
+
+#define BMC150_ACCEL_CHANNEL(_axis, bits) {				\
+	.type = IIO_ACCEL,						\
+	.modified = 1,							\
+	.channel2 = IIO_MOD_##_axis,					\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),			\
+	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |		\
+				BIT(IIO_CHAN_INFO_SAMP_FREQ),		\
+	.scan_index = AXIS_##_axis,					\
+	.scan_type = {							\
+		.sign = 's',						\
+		.realbits = (bits),					\
+		.storagebits = 16,					\
+		.shift = 16 - (bits),					\
+	},								\
+	.event_spec = &bmc150_accel_event,				\
+	.num_event_specs = 1						\
+}
+
+#define BMC150_ACCEL_CHANNELS(bits) {					\
+	{								\
+		.type = IIO_TEMP,					\
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |		\
+				      BIT(IIO_CHAN_INFO_SCALE) |	\
+				      BIT(IIO_CHAN_INFO_OFFSET),	\
+		.scan_index = -1,					\
+	},								\
+	BMC150_ACCEL_CHANNEL(X, bits),					\
+	BMC150_ACCEL_CHANNEL(Y, bits),					\
+	BMC150_ACCEL_CHANNEL(Z, bits),					\
+	IIO_CHAN_SOFT_TIMESTAMP(3),					\
+}
+
+static const struct iio_chan_spec bma222e_accel_channels[] =
+	BMC150_ACCEL_CHANNELS(8);
+static const struct iio_chan_spec bma250e_accel_channels[] =
+	BMC150_ACCEL_CHANNELS(10);
+static const struct iio_chan_spec bmc150_accel_channels[] =
+	BMC150_ACCEL_CHANNELS(12);
+static const struct iio_chan_spec bma280_accel_channels[] =
+	BMC150_ACCEL_CHANNELS(14);
+
+enum {
+	bmc150,
+	bmi055,
+	bma255,
+	bma250e,
+	bma222e,
+	bma280,
+};
+
+static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
+	[bmc150] = {
+		.chip_id = 0xFA,
+		.channels = bmc150_accel_channels,
+		.num_channels = ARRAY_SIZE(bmc150_accel_channels),
+		.scale_table = { {9610, BMC150_ACCEL_DEF_RANGE_2G},
+				 {19122, BMC150_ACCEL_DEF_RANGE_4G},
+				 {38344, BMC150_ACCEL_DEF_RANGE_8G},
+				 {76590, BMC150_ACCEL_DEF_RANGE_16G} },
+	},
+	[bmi055] = {
+		.chip_id = 0xFA,
+		.channels = bmc150_accel_channels,
+		.num_channels = ARRAY_SIZE(bmc150_accel_channels),
+		.scale_table = { {9610, BMC150_ACCEL_DEF_RANGE_2G},
+				 {19122, BMC150_ACCEL_DEF_RANGE_4G},
+				 {38344, BMC150_ACCEL_DEF_RANGE_8G},
+				 {76590, BMC150_ACCEL_DEF_RANGE_16G} },
+	},
+	[bma255] = {
+		.chip_id = 0xFA,
+		.channels = bmc150_accel_channels,
+		.num_channels = ARRAY_SIZE(bmc150_accel_channels),
+		.scale_table = { {9610, BMC150_ACCEL_DEF_RANGE_2G},
+				 {19122, BMC150_ACCEL_DEF_RANGE_4G},
+				 {38344, BMC150_ACCEL_DEF_RANGE_8G},
+				 {76590, BMC150_ACCEL_DEF_RANGE_16G} },
+	},
+	[bma250e] = {
+		.chip_id = 0xF9,
+		.channels = bma250e_accel_channels,
+		.num_channels = ARRAY_SIZE(bma250e_accel_channels),
+		.scale_table = { {38344, BMC150_ACCEL_DEF_RANGE_2G},
+				 {76590, BMC150_ACCEL_DEF_RANGE_4G},
+				 {153277, BMC150_ACCEL_DEF_RANGE_8G},
+				 {306457, BMC150_ACCEL_DEF_RANGE_16G} },
+	},
+	[bma222e] = {
+		.chip_id = 0xF8,
+		.channels = bma222e_accel_channels,
+		.num_channels = ARRAY_SIZE(bma222e_accel_channels),
+		.scale_table = { {153277, BMC150_ACCEL_DEF_RANGE_2G},
+				 {306457, BMC150_ACCEL_DEF_RANGE_4G},
+				 {612915, BMC150_ACCEL_DEF_RANGE_8G},
+				 {1225831, BMC150_ACCEL_DEF_RANGE_16G} },
+	},
+	[bma280] = {
+		.chip_id = 0xFB,
+		.channels = bma280_accel_channels,
+		.num_channels = ARRAY_SIZE(bma280_accel_channels),
+		.scale_table = { {2392, BMC150_ACCEL_DEF_RANGE_2G},
+				 {4785, BMC150_ACCEL_DEF_RANGE_4G},
+				 {9581, BMC150_ACCEL_DEF_RANGE_8G},
+				 {19152, BMC150_ACCEL_DEF_RANGE_16G} },
+	},
+};
+
+static const struct iio_info bmc150_accel_info = {
+	.attrs			= &bmc150_accel_attrs_group,
+	.read_raw		= bmc150_accel_read_raw,
+	.write_raw		= bmc150_accel_write_raw,
+	.read_event_value	= bmc150_accel_read_event,
+	.write_event_value	= bmc150_accel_write_event,
+	.write_event_config	= bmc150_accel_write_event_config,
+	.read_event_config	= bmc150_accel_read_event_config,
+	.validate_trigger	= bmc150_accel_validate_trigger,
+	.driver_module		= THIS_MODULE,
+};
+
+static irqreturn_t bmc150_accel_trigger_handler(int irq, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	int bit, ret, i = 0;
+
+	mutex_lock(&data->mutex);
+	for_each_set_bit(bit, indio_dev->buffer->scan_mask,
+			 indio_dev->masklength) {
+		ret = i2c_smbus_read_word_data(data->client,
+					       BMC150_ACCEL_AXIS_TO_REG(bit));
+		if (ret < 0) {
+			mutex_unlock(&data->mutex);
+			goto err_read;
+		}
+		data->buffer[i++] = ret;
+	}
+	mutex_unlock(&data->mutex);
+
+	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+					   data->timestamp);
+err_read:
+	iio_trigger_notify_done(indio_dev->trig);
+
+	return IRQ_HANDLED;
+}
+
+static int bmc150_accel_trig_try_reen(struct iio_trigger *trig)
+{
+	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	int ret;
+
+	/* new data interrupts don't need ack */
+	if (data->dready_trigger_on)
+		return 0;
+
+	mutex_lock(&data->mutex);
+	/* clear any latched interrupt */
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMC150_ACCEL_REG_INT_RST_LATCH,
+					BMC150_ACCEL_INT_MODE_LATCH_INT |
+					BMC150_ACCEL_INT_MODE_LATCH_RESET);
+	mutex_unlock(&data->mutex);
+	if (ret < 0) {
+		dev_err(&data->client->dev,
+			"Error writing reg_int_rst_latch\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int bmc150_accel_data_rdy_trigger_set_state(struct iio_trigger *trig,
+						   bool state)
+{
+	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	int ret;
+
+	mutex_lock(&data->mutex);
+
+	if (!state && data->ev_enable_state && data->motion_trigger_on) {
+		data->motion_trigger_on = false;
+		mutex_unlock(&data->mutex);
+		return 0;
+	}
+
+	/*
+	 * Refer to comment in bmc150_accel_write_event_config for
+	 * enable/disable operation order
+	 */
+	ret = bmc150_accel_set_power_state(data, state);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+	if (data->motion_trig == trig)
+		ret =  bmc150_accel_setup_any_motion_interrupt(data, state);
+	else
+		ret = bmc150_accel_setup_new_data_interrupt(data, state);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+	if (data->motion_trig == trig)
+		data->motion_trigger_on = state;
+	else
+		data->dready_trigger_on = state;
+
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static const struct iio_trigger_ops bmc150_accel_trigger_ops = {
+	.set_trigger_state = bmc150_accel_data_rdy_trigger_set_state,
+	.try_reenable = bmc150_accel_trig_try_reen,
+	.owner = THIS_MODULE,
+};
+
+static irqreturn_t bmc150_accel_event_handler(int irq, void *private)
+{
+	struct iio_dev *indio_dev = private;
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	int ret;
+	int dir;
+
+	ret = i2c_smbus_read_byte_data(data->client,
+				       BMC150_ACCEL_REG_INT_STATUS_2);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_int_status_2\n");
+		goto ack_intr_status;
+	}
+
+	if (ret & BMC150_ACCEL_ANY_MOTION_BIT_SIGN)
+		dir = IIO_EV_DIR_FALLING;
+	else
+		dir = IIO_EV_DIR_RISING;
+
+	if (ret & BMC150_ACCEL_ANY_MOTION_MASK)
+		iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ACCEL,
+							0,
+							IIO_MOD_X_OR_Y_OR_Z,
+							IIO_EV_TYPE_ROC,
+							IIO_EV_DIR_EITHER),
+							data->timestamp);
+ack_intr_status:
+	if (!data->dready_trigger_on)
+		ret = i2c_smbus_write_byte_data(data->client,
+					BMC150_ACCEL_REG_INT_RST_LATCH,
+					BMC150_ACCEL_INT_MODE_LATCH_INT |
+					BMC150_ACCEL_INT_MODE_LATCH_RESET);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t bmc150_accel_data_rdy_trig_poll(int irq, void *private)
+{
+	struct iio_dev *indio_dev = private;
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+
+	data->timestamp = iio_get_time_ns();
+
+	if (data->dready_trigger_on)
+		iio_trigger_poll(data->dready_trig);
+	else if (data->motion_trigger_on)
+		iio_trigger_poll(data->motion_trig);
+
+	if (data->ev_enable_state)
+		return IRQ_WAKE_THREAD;
+	else
+		return IRQ_HANDLED;
+}
+
+static const char *bmc150_accel_match_acpi_device(struct device *dev, int *data)
+{
+	const struct acpi_device_id *id;
+
+	id = acpi_match_device(dev->driver->acpi_match_table, dev);
+
+	if (!id)
+		return NULL;
+
+	*data = (int) id->driver_data;
+
+	return dev_name(dev);
+}
+
+static int bmc150_accel_gpio_probe(struct i2c_client *client,
+					struct bmc150_accel_data *data)
+{
+	struct device *dev;
+	struct gpio_desc *gpio;
+	int ret;
+
+	if (!client)
+		return -EINVAL;
+
+	dev = &client->dev;
+
+	/* data ready gpio interrupt pin */
+	gpio = devm_gpiod_get_index(dev, BMC150_ACCEL_GPIO_NAME, 0);
+	if (IS_ERR(gpio)) {
+		dev_err(dev, "Failed: gpio get index\n");
+		return PTR_ERR(gpio);
+	}
+
+	ret = gpiod_direction_input(gpio);
+	if (ret)
+		return ret;
+
+	ret = gpiod_to_irq(gpio);
+
+	dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
+
+	return ret;
+}
+
+static int bmc150_accel_probe(struct i2c_client *client,
+			      const struct i2c_device_id *id)
+{
+	struct bmc150_accel_data *data;
+	struct iio_dev *indio_dev;
+	int ret;
+	const char *name = NULL;
+	int chip_id = 0;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	data = iio_priv(indio_dev);
+	i2c_set_clientdata(client, indio_dev);
+	data->client = client;
+
+	if (id) {
+		name = id->name;
+		chip_id = id->driver_data;
+	}
+
+	if (ACPI_HANDLE(&client->dev))
+		name = bmc150_accel_match_acpi_device(&client->dev, &chip_id);
+
+	data->chip_info = &bmc150_accel_chip_info_tbl[chip_id];
+
+	ret = bmc150_accel_chip_init(data);
+	if (ret < 0)
+		return ret;
+
+	mutex_init(&data->mutex);
+
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->channels = data->chip_info->channels;
+	indio_dev->num_channels = data->chip_info->num_channels;
+	indio_dev->name = name;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->info = &bmc150_accel_info;
+
+	if (client->irq < 0)
+		client->irq = bmc150_accel_gpio_probe(client, data);
+
+	if (client->irq >= 0) {
+		ret = devm_request_threaded_irq(
+						&client->dev, client->irq,
+						bmc150_accel_data_rdy_trig_poll,
+						bmc150_accel_event_handler,
+						IRQF_TRIGGER_RISING,
+						BMC150_ACCEL_IRQ_NAME,
+						indio_dev);
+		if (ret)
+			return ret;
+
+		data->dready_trig = devm_iio_trigger_alloc(&client->dev,
+							   "%s-dev%d",
+							   indio_dev->name,
+							   indio_dev->id);
+		if (!data->dready_trig)
+			return -ENOMEM;
+
+		data->motion_trig = devm_iio_trigger_alloc(&client->dev,
+							  "%s-any-motion-dev%d",
+							  indio_dev->name,
+							  indio_dev->id);
+		if (!data->motion_trig)
+			return -ENOMEM;
+
+		data->dready_trig->dev.parent = &client->dev;
+		data->dready_trig->ops = &bmc150_accel_trigger_ops;
+		iio_trigger_set_drvdata(data->dready_trig, indio_dev);
+		ret = iio_trigger_register(data->dready_trig);
+		if (ret)
+			return ret;
+
+		data->motion_trig->dev.parent = &client->dev;
+		data->motion_trig->ops = &bmc150_accel_trigger_ops;
+		iio_trigger_set_drvdata(data->motion_trig, indio_dev);
+		ret = iio_trigger_register(data->motion_trig);
+		if (ret) {
+			data->motion_trig = NULL;
+			goto err_trigger_unregister;
+		}
+
+		ret = iio_triggered_buffer_setup(indio_dev,
+						 &iio_pollfunc_store_time,
+						 bmc150_accel_trigger_handler,
+						 NULL);
+		if (ret < 0) {
+			dev_err(&client->dev,
+				"Failed: iio triggered buffer setup\n");
+			goto err_trigger_unregister;
+		}
+	}
+
+	ret = iio_device_register(indio_dev);
+	if (ret < 0) {
+		dev_err(&client->dev, "Unable to register iio device\n");
+		goto err_buffer_cleanup;
+	}
+
+	ret = pm_runtime_set_active(&client->dev);
+	if (ret)
+		goto err_iio_unregister;
+
+	pm_runtime_enable(&client->dev);
+	pm_runtime_set_autosuspend_delay(&client->dev,
+					 BMC150_AUTO_SUSPEND_DELAY_MS);
+	pm_runtime_use_autosuspend(&client->dev);
+
+	return 0;
+
+err_iio_unregister:
+	iio_device_unregister(indio_dev);
+err_buffer_cleanup:
+	if (data->dready_trig)
+		iio_triggered_buffer_cleanup(indio_dev);
+err_trigger_unregister:
+	if (data->dready_trig)
+		iio_trigger_unregister(data->dready_trig);
+	if (data->motion_trig)
+		iio_trigger_unregister(data->motion_trig);
+
+	return ret;
+}
+
+static int bmc150_accel_remove(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+
+	pm_runtime_disable(&client->dev);
+	pm_runtime_set_suspended(&client->dev);
+	pm_runtime_put_noidle(&client->dev);
+
+	iio_device_unregister(indio_dev);
+
+	if (data->dready_trig) {
+		iio_triggered_buffer_cleanup(indio_dev);
+		iio_trigger_unregister(data->dready_trig);
+		iio_trigger_unregister(data->motion_trig);
+	}
+
+	mutex_lock(&data->mutex);
+	bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_DEEP_SUSPEND, 0);
+	mutex_unlock(&data->mutex);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int bmc150_accel_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+
+	mutex_lock(&data->mutex);
+	bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_SUSPEND, 0);
+	mutex_unlock(&data->mutex);
+
+	return 0;
+}
+
+static int bmc150_accel_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+
+	mutex_lock(&data->mutex);
+	if (data->dready_trigger_on || data->motion_trigger_on ||
+							data->ev_enable_state)
+		bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
+	mutex_unlock(&data->mutex);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_PM_RUNTIME
+static int bmc150_accel_runtime_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+
+	dev_dbg(&data->client->dev,  __func__);
+
+	return bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_SUSPEND, 0);
+}
+
+static int bmc150_accel_runtime_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	int ret;
+	int sleep_val;
+
+	dev_dbg(&data->client->dev,  __func__);
+
+	ret = bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
+	if (ret < 0)
+		return ret;
+
+	sleep_val = bmc150_accel_get_startup_times(data);
+	if (sleep_val < 20)
+		usleep_range(sleep_val * 1000, 20000);
+	else
+		msleep_interruptible(sleep_val);
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops bmc150_accel_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(bmc150_accel_suspend, bmc150_accel_resume)
+	SET_RUNTIME_PM_OPS(bmc150_accel_runtime_suspend,
+			   bmc150_accel_runtime_resume, NULL)
+};
+
+static const struct acpi_device_id bmc150_accel_acpi_match[] = {
+	{"BSBA0150",	bmc150},
+	{"BMC150A",	bmc150},
+	{"BMI055A",	bmi055},
+	{"BMA0255",	bma255},
+	{"BMA250E",	bma250e},
+	{"BMA222E",	bma222e},
+	{"BMA0280",	bma280},
+	{ },
+};
+MODULE_DEVICE_TABLE(acpi, bmc150_accel_acpi_match);
+
+static const struct i2c_device_id bmc150_accel_id[] = {
+	{"bmc150_accel",	bmc150},
+	{"bmi055_accel",	bmi055},
+	{"bma255",		bma255},
+	{"bma250e",		bma250e},
+	{"bma222e",		bma222e},
+	{"bma280",		bma280},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, bmc150_accel_id);
+
+static struct i2c_driver bmc150_accel_driver = {
+	.driver = {
+		.name	= BMC150_ACCEL_DRV_NAME,
+		.acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match),
+		.pm	= &bmc150_accel_pm_ops,
+	},
+	.probe		= bmc150_accel_probe,
+	.remove		= bmc150_accel_remove,
+	.id_table	= bmc150_accel_id,
+};
+module_i2c_driver(bmc150_accel_driver);
+
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("BMC150 accelerometer driver");
diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c
index 54e464e..d5d95317 100644
--- a/drivers/iio/accel/hid-sensor-accel-3d.c
+++ b/drivers/iio/accel/hid-sensor-accel-3d.c
@@ -419,7 +419,6 @@ static struct platform_driver hid_accel_3d_platform_driver = {
 	.id_table = hid_accel_3d_ids,
 	.driver = {
 		.name	= KBUILD_MODNAME,
-		.owner	= THIS_MODULE,
 	},
 	.probe		= hid_accel_3d_probe,
 	.remove		= hid_accel_3d_remove,
diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index 7941cf2..98909a9 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -21,10 +21,13 @@
 #include <linux/string.h>
 #include <linux/acpi.h>
 #include <linux/gpio/consumer.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
 #include <linux/iio/buffer.h>
 #include <linux/iio/trigger.h>
+#include <linux/iio/events.h>
 #include <linux/iio/trigger_consumer.h>
 #include <linux/iio/triggered_buffer.h>
 #include <linux/iio/accel/kxcjk_1013.h>
@@ -71,15 +74,40 @@
 #define KXCJK1013_DATA_MASK_12_BIT	0x0FFF
 #define KXCJK1013_MAX_STARTUP_TIME_US	100000
 
+#define KXCJK1013_SLEEP_DELAY_MS	2000
+
+#define KXCJK1013_REG_INT_SRC2_BIT_ZP	BIT(0)
+#define KXCJK1013_REG_INT_SRC2_BIT_ZN	BIT(1)
+#define KXCJK1013_REG_INT_SRC2_BIT_YP	BIT(2)
+#define KXCJK1013_REG_INT_SRC2_BIT_YN	BIT(3)
+#define KXCJK1013_REG_INT_SRC2_BIT_XP	BIT(4)
+#define KXCJK1013_REG_INT_SRC2_BIT_XN	BIT(5)
+
+#define KXCJK1013_DEFAULT_WAKE_THRES	1
+
+enum kx_chipset {
+	KXCJK1013,
+	KXCJ91008,
+	KXTJ21009,
+	KX_MAX_CHIPS /* this must be last */
+};
+
 struct kxcjk1013_data {
 	struct i2c_client *client;
-	struct iio_trigger *trig;
-	bool trig_mode;
+	struct iio_trigger *dready_trig;
+	struct iio_trigger *motion_trig;
 	struct mutex mutex;
 	s16 buffer[8];
-	int power_state;
 	u8 odr_bits;
+	u8 range;
+	int wake_thres;
+	int wake_dur;
 	bool active_high_intr;
+	bool dready_trigger_on;
+	int ev_enable_state;
+	bool motion_trigger_on;
+	int64_t timestamp;
+	enum kx_chipset chipset;
 };
 
 enum kxcjk1013_axis {
@@ -93,6 +121,12 @@ enum kxcjk1013_mode {
 	OPERATION,
 };
 
+enum kxcjk1013_range {
+	KXCJK1013_RANGE_2G,
+	KXCJK1013_RANGE_4G,
+	KXCJK1013_RANGE_8G,
+};
+
 static const struct {
 	int val;
 	int val2;
@@ -107,10 +141,78 @@ static const struct {
 static const struct {
 	int odr_bits;
 	int usec;
-} odr_start_up_times[] = { {0x08, 100000}, {0x09, 100000}, {0x0A, 100000},
-			   {0x0B, 100000}, { 0, 80000}, {0x01, 41000},
-			   {0x02, 21000}, {0x03, 11000}, {0x04, 6400},
-			   {0x05, 3900}, {0x06, 2700}, {0x07, 2100} };
+} odr_start_up_times[KX_MAX_CHIPS][12] = {
+	/* KXCJK-1013 */
+	{
+		{0x08, 100000},
+		{0x09, 100000},
+		{0x0A, 100000},
+		{0x0B, 100000},
+		{0, 80000},
+		{0x01, 41000},
+		{0x02, 21000},
+		{0x03, 11000},
+		{0x04, 6400},
+		{0x05, 3900},
+		{0x06, 2700},
+		{0x07, 2100},
+	},
+	/* KXCJ9-1008 */
+	{
+		{0x08, 100000},
+		{0x09, 100000},
+		{0x0A, 100000},
+		{0x0B, 100000},
+		{0, 80000},
+		{0x01, 41000},
+		{0x02, 21000},
+		{0x03, 11000},
+		{0x04, 6400},
+		{0x05, 3900},
+		{0x06, 2700},
+		{0x07, 2100},
+	},
+	/* KXCTJ2-1009 */
+	{
+		{0x08, 1240000},
+		{0x09, 621000},
+		{0x0A, 309000},
+		{0x0B, 151000},
+		{0, 80000},
+		{0x01, 41000},
+		{0x02, 21000},
+		{0x03, 11000},
+		{0x04, 6000},
+		{0x05, 4000},
+		{0x06, 3000},
+		{0x07, 2000},
+	},
+};
+
+static const struct {
+	u16 scale;
+	u8 gsel_0;
+	u8 gsel_1;
+} KXCJK1013_scale_table[] = { {9582, 0, 0},
+			      {19163, 1, 0},
+			      {38326, 0, 1} };
+
+static const struct {
+	int val;
+	int val2;
+	int odr_bits;
+} wake_odr_data_rate_table[] = { {0, 781000, 0x00},
+				 {1, 563000, 0x01},
+				 {3, 125000, 0x02},
+				 {6, 250000, 0x03},
+				 {12, 500000, 0x04},
+				 {25, 0, 0x05},
+				 {50, 0, 0x06},
+				 {100, 0, 0x06},
+				 {200, 0, 0x06},
+				 {400, 0, 0x06},
+				 {800, 0, 0x06},
+				 {1600, 0, 0x06} };
 
 static int kxcjk1013_set_mode(struct kxcjk1013_data *data,
 			      enum kxcjk1013_mode mode)
@@ -138,6 +240,51 @@ static int kxcjk1013_set_mode(struct kxcjk1013_data *data,
 	return 0;
 }
 
+static int kxcjk1013_get_mode(struct kxcjk1013_data *data,
+			      enum kxcjk1013_mode *mode)
+{
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(data->client, KXCJK1013_REG_CTRL1);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_ctrl1\n");
+		return ret;
+	}
+
+	if (ret & KXCJK1013_REG_CTRL1_BIT_PC1)
+		*mode = OPERATION;
+	else
+		*mode = STANDBY;
+
+	return 0;
+}
+
+static int kxcjk1013_set_range(struct kxcjk1013_data *data, int range_index)
+{
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(data->client, KXCJK1013_REG_CTRL1);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_ctrl1\n");
+		return ret;
+	}
+
+	ret |= (KXCJK1013_scale_table[range_index].gsel_0 << 3);
+	ret |= (KXCJK1013_scale_table[range_index].gsel_1 << 4);
+
+	ret = i2c_smbus_write_byte_data(data->client,
+					KXCJK1013_REG_CTRL1,
+					ret);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_ctrl1\n");
+		return ret;
+	}
+
+	data->range = range_index;
+
+	return 0;
+}
+
 static int kxcjk1013_chip_init(struct kxcjk1013_data *data)
 {
 	int ret;
@@ -160,10 +307,6 @@ static int kxcjk1013_chip_init(struct kxcjk1013_data *data)
 		return ret;
 	}
 
-	/* Setting range to 4G */
-	ret |= KXCJK1013_REG_CTRL1_BIT_GSEL0;
-	ret &= ~KXCJK1013_REG_CTRL1_BIT_GSEL1;
-
 	/* Set 12 bit mode */
 	ret |= KXCJK1013_REG_CTRL1_BIT_RES;
 
@@ -174,6 +317,11 @@ static int kxcjk1013_chip_init(struct kxcjk1013_data *data)
 		return ret;
 	}
 
+	/* Setting range to 4G */
+	ret = kxcjk1013_set_range(data, KXCJK1013_RANGE_4G);
+	if (ret < 0)
+		return ret;
+
 	ret = i2c_smbus_read_byte_data(data->client, KXCJK1013_REG_DATA_CTRL);
 	if (ret < 0) {
 		dev_err(&data->client->dev, "Error reading reg_data_ctrl\n");
@@ -201,14 +349,147 @@ static int kxcjk1013_chip_init(struct kxcjk1013_data *data)
 		return ret;
 	}
 
+	ret = kxcjk1013_set_mode(data, OPERATION);
+	if (ret < 0)
+		return ret;
+
+	data->wake_thres = KXCJK1013_DEFAULT_WAKE_THRES;
+
 	return 0;
 }
 
-static int kxcjk1013_chip_setup_interrupt(struct kxcjk1013_data *data,
-					  bool status)
+#ifdef CONFIG_PM_RUNTIME
+static int kxcjk1013_get_startup_times(struct kxcjk1013_data *data)
+{
+	int i;
+	int idx = data->chipset;
+
+	for (i = 0; i < ARRAY_SIZE(odr_start_up_times[idx]); ++i) {
+		if (odr_start_up_times[idx][i].odr_bits == data->odr_bits)
+			return odr_start_up_times[idx][i].usec;
+	}
+
+	return KXCJK1013_MAX_STARTUP_TIME_US;
+}
+#endif
+
+static int kxcjk1013_set_power_state(struct kxcjk1013_data *data, bool on)
 {
 	int ret;
 
+	if (on)
+		ret = pm_runtime_get_sync(&data->client->dev);
+	else {
+		pm_runtime_mark_last_busy(&data->client->dev);
+		ret = pm_runtime_put_autosuspend(&data->client->dev);
+	}
+	if (ret < 0) {
+		dev_err(&data->client->dev,
+			"Failed: kxcjk1013_set_power_state for %d\n", on);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int kxcjk1013_chip_update_thresholds(struct kxcjk1013_data *data)
+{
+	int ret;
+
+	ret = i2c_smbus_write_byte_data(data->client,
+					KXCJK1013_REG_WAKE_TIMER,
+					data->wake_dur);
+	if (ret < 0) {
+		dev_err(&data->client->dev,
+			"Error writing reg_wake_timer\n");
+		return ret;
+	}
+
+	ret = i2c_smbus_write_byte_data(data->client,
+					KXCJK1013_REG_WAKE_THRES,
+					data->wake_thres);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_wake_thres\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int kxcjk1013_setup_any_motion_interrupt(struct kxcjk1013_data *data,
+						bool status)
+{
+	int ret;
+	enum kxcjk1013_mode store_mode;
+
+	ret = kxcjk1013_get_mode(data, &store_mode);
+	if (ret < 0)
+		return ret;
+
+	/* This is requirement by spec to change state to STANDBY */
+	ret = kxcjk1013_set_mode(data, STANDBY);
+	if (ret < 0)
+		return ret;
+
+	ret = kxcjk1013_chip_update_thresholds(data);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_smbus_read_byte_data(data->client, KXCJK1013_REG_INT_CTRL1);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_int_ctrl1\n");
+		return ret;
+	}
+
+	if (status)
+		ret |= KXCJK1013_REG_INT_REG1_BIT_IEN;
+	else
+		ret &= ~KXCJK1013_REG_INT_REG1_BIT_IEN;
+
+	ret = i2c_smbus_write_byte_data(data->client, KXCJK1013_REG_INT_CTRL1,
+					ret);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_int_ctrl1\n");
+		return ret;
+	}
+
+	ret = i2c_smbus_read_byte_data(data->client, KXCJK1013_REG_CTRL1);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_ctrl1\n");
+		return ret;
+	}
+
+	if (status)
+		ret |= KXCJK1013_REG_CTRL1_BIT_WUFE;
+	else
+		ret &= ~KXCJK1013_REG_CTRL1_BIT_WUFE;
+
+	ret = i2c_smbus_write_byte_data(data->client,
+					KXCJK1013_REG_CTRL1, ret);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_ctrl1\n");
+		return ret;
+	}
+
+	if (store_mode == OPERATION) {
+		ret = kxcjk1013_set_mode(data, OPERATION);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int kxcjk1013_setup_new_data_interrupt(struct kxcjk1013_data *data,
+					      bool status)
+{
+	int ret;
+	enum kxcjk1013_mode store_mode;
+
+	ret = kxcjk1013_get_mode(data, &store_mode);
+	if (ret < 0)
+		return ret;
+
 	/* This is requirement by spec to change state to STANDBY */
 	ret = kxcjk1013_set_mode(data, STANDBY);
 	if (ret < 0)
@@ -250,7 +531,13 @@ static int kxcjk1013_chip_setup_interrupt(struct kxcjk1013_data *data,
 		return ret;
 	}
 
-	return ret;
+	if (store_mode == OPERATION) {
+		ret = kxcjk1013_set_mode(data, OPERATION);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
 }
 
 static int kxcjk1013_convert_freq_to_bit(int val, int val2)
@@ -267,10 +554,29 @@ static int kxcjk1013_convert_freq_to_bit(int val, int val2)
 	return -EINVAL;
 }
 
+static int kxcjk1013_convert_wake_odr_to_bit(int val, int val2)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(wake_odr_data_rate_table); ++i) {
+		if (wake_odr_data_rate_table[i].val == val &&
+			wake_odr_data_rate_table[i].val2 == val2) {
+			return wake_odr_data_rate_table[i].odr_bits;
+		}
+	}
+
+	return -EINVAL;
+}
+
 static int kxcjk1013_set_odr(struct kxcjk1013_data *data, int val, int val2)
 {
 	int ret;
 	int odr_bits;
+	enum kxcjk1013_mode store_mode;
+
+	ret = kxcjk1013_get_mode(data, &store_mode);
+	if (ret < 0)
+		return ret;
 
 	odr_bits = kxcjk1013_convert_freq_to_bit(val, val2);
 	if (odr_bits < 0)
@@ -290,9 +596,18 @@ static int kxcjk1013_set_odr(struct kxcjk1013_data *data, int val, int val2)
 
 	data->odr_bits = odr_bits;
 
-	/* Check, if the ODR is changed after data enable */
-	if (data->power_state) {
-		/* Set the state back to operation */
+	odr_bits = kxcjk1013_convert_wake_odr_to_bit(val, val2);
+	if (odr_bits < 0)
+		return odr_bits;
+
+	ret = i2c_smbus_write_byte_data(data->client, KXCJK1013_REG_CTRL2,
+					odr_bits);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_ctrl2\n");
+		return ret;
+	}
+
+	if (store_mode == OPERATION) {
 		ret = kxcjk1013_set_mode(data, OPERATION);
 		if (ret < 0)
 			return ret;
@@ -331,16 +646,38 @@ static int kxcjk1013_get_acc_reg(struct kxcjk1013_data *data, int axis)
 	return ret;
 }
 
-static int kxcjk1013_get_startup_times(struct kxcjk1013_data *data)
+static int kxcjk1013_set_scale(struct kxcjk1013_data *data, int val)
 {
-	int i;
+	int ret, i;
+	enum kxcjk1013_mode store_mode;
+
+
+	for (i = 0; i < ARRAY_SIZE(KXCJK1013_scale_table); ++i) {
+		if (KXCJK1013_scale_table[i].scale == val) {
+
+			ret = kxcjk1013_get_mode(data, &store_mode);
+			if (ret < 0)
+				return ret;
+
+			ret = kxcjk1013_set_mode(data, STANDBY);
+			if (ret < 0)
+				return ret;
+
+			ret = kxcjk1013_set_range(data, i);
+			if (ret < 0)
+				return ret;
 
-	for (i = 0; i < ARRAY_SIZE(odr_start_up_times); ++i) {
-		if (odr_start_up_times[i].odr_bits == data->odr_bits)
-			return odr_start_up_times[i].usec;
+			if (store_mode == OPERATION) {
+				ret = kxcjk1013_set_mode(data, OPERATION);
+				if (ret)
+					return ret;
+			}
+
+			return 0;
+		}
 	}
 
-	return KXCJK1013_MAX_STARTUP_TIME_US;
+	return -EINVAL;
 }
 
 static int kxcjk1013_read_raw(struct iio_dev *indio_dev,
@@ -356,34 +693,30 @@ static int kxcjk1013_read_raw(struct iio_dev *indio_dev,
 		if (iio_buffer_enabled(indio_dev))
 			ret = -EBUSY;
 		else {
-			int sleep_val;
-
-			ret = kxcjk1013_set_mode(data, OPERATION);
+			ret = kxcjk1013_set_power_state(data, true);
 			if (ret < 0) {
 				mutex_unlock(&data->mutex);
 				return ret;
 			}
-			++data->power_state;
-			sleep_val = kxcjk1013_get_startup_times(data);
-			if (sleep_val < 20000)
-				usleep_range(sleep_val, 20000);
-			else
-				msleep_interruptible(sleep_val/1000);
 			ret = kxcjk1013_get_acc_reg(data, chan->scan_index);
-			if (--data->power_state == 0)
-				kxcjk1013_set_mode(data, STANDBY);
+			if (ret < 0) {
+				kxcjk1013_set_power_state(data, false);
+				mutex_unlock(&data->mutex);
+				return ret;
+			}
+			*val = sign_extend32(ret >> 4, 11);
+			ret = kxcjk1013_set_power_state(data, false);
 		}
 		mutex_unlock(&data->mutex);
 
 		if (ret < 0)
 			return ret;
 
-		*val = sign_extend32(ret >> 4, 11);
 		return IIO_VAL_INT;
 
 	case IIO_CHAN_INFO_SCALE:
 		*val = 0;
-		*val2 = 19163; /* range +-4g (4/2047*9.806650) */
+		*val2 = KXCJK1013_scale_table[data->range].scale;
 		return IIO_VAL_INT_PLUS_MICRO;
 
 	case IIO_CHAN_INFO_SAMP_FREQ:
@@ -410,6 +743,14 @@ static int kxcjk1013_write_raw(struct iio_dev *indio_dev,
 		ret = kxcjk1013_set_odr(data, val, val2);
 		mutex_unlock(&data->mutex);
 		break;
+	case IIO_CHAN_INFO_SCALE:
+		if (val)
+			return -EINVAL;
+
+		mutex_lock(&data->mutex);
+		ret = kxcjk1013_set_scale(data, val2);
+		mutex_unlock(&data->mutex);
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -417,12 +758,120 @@ static int kxcjk1013_write_raw(struct iio_dev *indio_dev,
 	return ret;
 }
 
+static int kxcjk1013_read_event(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 kxcjk1013_data *data = iio_priv(indio_dev);
+
+	*val2 = 0;
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		*val = data->wake_thres;
+		break;
+	case IIO_EV_INFO_PERIOD:
+		*val = data->wake_dur;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return IIO_VAL_INT;
+}
+
+static int kxcjk1013_write_event(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 kxcjk1013_data *data = iio_priv(indio_dev);
+
+	if (data->ev_enable_state)
+		return -EBUSY;
+
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		data->wake_thres = val;
+		break;
+	case IIO_EV_INFO_PERIOD:
+		data->wake_dur = val;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int kxcjk1013_read_event_config(struct iio_dev *indio_dev,
+					  const struct iio_chan_spec *chan,
+					  enum iio_event_type type,
+					  enum iio_event_direction dir)
+{
+
+	struct kxcjk1013_data *data = iio_priv(indio_dev);
+
+	return data->ev_enable_state;
+}
+
+static int kxcjk1013_write_event_config(struct iio_dev *indio_dev,
+					   const struct iio_chan_spec *chan,
+					   enum iio_event_type type,
+					   enum iio_event_direction dir,
+					   int state)
+{
+	struct kxcjk1013_data *data = iio_priv(indio_dev);
+	int ret;
+
+	if (state && data->ev_enable_state)
+		return 0;
+
+	mutex_lock(&data->mutex);
+
+	if (!state && data->motion_trigger_on) {
+		data->ev_enable_state = 0;
+		mutex_unlock(&data->mutex);
+		return 0;
+	}
+
+	/*
+	 * We will expect the enable and disable to do operation in
+	 * in reverse order. This will happen here anyway as our
+	 * resume operation uses sync mode runtime pm calls, the
+	 * suspend operation will be delayed by autosuspend delay
+	 * So the disable operation will still happen in reverse of
+	 * enable operation. When runtime pm is disabled the mode
+	 * is always on so sequence doesn't matter
+	 */
+	ret = kxcjk1013_set_power_state(data, state);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+
+	ret =  kxcjk1013_setup_any_motion_interrupt(data, state);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+
+	data->ev_enable_state = state;
+	mutex_unlock(&data->mutex);
+
+	return 0;
+}
+
 static int kxcjk1013_validate_trigger(struct iio_dev *indio_dev,
 				      struct iio_trigger *trig)
 {
 	struct kxcjk1013_data *data = iio_priv(indio_dev);
 
-	if (data->trig != trig)
+	if (data->dready_trig != trig && data->motion_trig != trig)
 		return -EINVAL;
 
 	return 0;
@@ -431,8 +880,11 @@ static int kxcjk1013_validate_trigger(struct iio_dev *indio_dev,
 static IIO_CONST_ATTR_SAMP_FREQ_AVAIL(
 	"0.781000 1.563000 3.125000 6.250000 12.500000 25 50 100 200 400 800 1600");
 
+static IIO_CONST_ATTR(in_accel_scale_available, "0.009582 0.019163 0.038326");
+
 static struct attribute *kxcjk1013_attributes[] = {
 	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
+	&iio_const_attr_in_accel_scale_available.dev_attr.attr,
 	NULL,
 };
 
@@ -440,6 +892,14 @@ static const struct attribute_group kxcjk1013_attrs_group = {
 	.attrs = kxcjk1013_attributes,
 };
 
+static const struct iio_event_spec kxcjk1013_event = {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING | IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+				 BIT(IIO_EV_INFO_ENABLE) |
+				 BIT(IIO_EV_INFO_PERIOD)
+};
+
 #define KXCJK1013_CHANNEL(_axis) {					\
 	.type = IIO_ACCEL,						\
 	.modified = 1,							\
@@ -455,6 +915,8 @@ static const struct attribute_group kxcjk1013_attrs_group = {
 		.shift = 4,						\
 		.endianness = IIO_CPU,					\
 	},								\
+	.event_spec = &kxcjk1013_event,				\
+	.num_event_specs = 1						\
 }
 
 static const struct iio_chan_spec kxcjk1013_channels[] = {
@@ -468,6 +930,10 @@ static const struct iio_info kxcjk1013_info = {
 	.attrs			= &kxcjk1013_attrs_group,
 	.read_raw		= kxcjk1013_read_raw,
 	.write_raw		= kxcjk1013_write_raw,
+	.read_event_value	= kxcjk1013_read_event,
+	.write_event_value	= kxcjk1013_write_event,
+	.write_event_config	= kxcjk1013_write_event_config,
+	.read_event_config	= kxcjk1013_read_event_config,
 	.validate_trigger	= kxcjk1013_validate_trigger,
 	.driver_module		= THIS_MODULE,
 };
@@ -493,7 +959,7 @@ static irqreturn_t kxcjk1013_trigger_handler(int irq, void *p)
 	mutex_unlock(&data->mutex);
 
 	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
-					   pf->timestamp);
+					   data->timestamp);
 err:
 	iio_trigger_notify_done(indio_dev->trig);
 
@@ -520,20 +986,34 @@ static int kxcjk1013_data_rdy_trigger_set_state(struct iio_trigger *trig,
 {
 	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
 	struct kxcjk1013_data *data = iio_priv(indio_dev);
+	int ret;
 
 	mutex_lock(&data->mutex);
-	if (state) {
-		kxcjk1013_chip_setup_interrupt(data, true);
-		kxcjk1013_set_mode(data, OPERATION);
-		++data->power_state;
-	} else {
-		if (--data->power_state) {
-			mutex_unlock(&data->mutex);
-			return 0;
-		}
-		kxcjk1013_chip_setup_interrupt(data, false);
-		kxcjk1013_set_mode(data, STANDBY);
+
+	if (!state && data->ev_enable_state && data->motion_trigger_on) {
+		data->motion_trigger_on = false;
+		mutex_unlock(&data->mutex);
+		return 0;
 	}
+
+	ret = kxcjk1013_set_power_state(data, state);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+	if (data->motion_trig == trig)
+		ret = kxcjk1013_setup_any_motion_interrupt(data, state);
+	else
+		ret = kxcjk1013_setup_new_data_interrupt(data, state);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+	if (data->motion_trig == trig)
+		data->motion_trigger_on = state;
+	else
+		data->dready_trigger_on = state;
+
 	mutex_unlock(&data->mutex);
 
 	return 0;
@@ -545,10 +1025,124 @@ static const struct iio_trigger_ops kxcjk1013_trigger_ops = {
 	.owner = THIS_MODULE,
 };
 
-static int kxcjk1013_acpi_gpio_probe(struct i2c_client *client,
-				     struct kxcjk1013_data *data)
+static irqreturn_t kxcjk1013_event_handler(int irq, void *private)
+{
+	struct iio_dev *indio_dev = private;
+	struct kxcjk1013_data *data = iio_priv(indio_dev);
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(data->client, KXCJK1013_REG_INT_SRC1);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_int_src1\n");
+		goto ack_intr;
+	}
+
+	if (ret & 0x02) {
+		ret = i2c_smbus_read_byte_data(data->client,
+					       KXCJK1013_REG_INT_SRC2);
+		if (ret < 0) {
+			dev_err(&data->client->dev,
+				"Error reading reg_int_src2\n");
+			goto ack_intr;
+		}
+
+		if (ret & KXCJK1013_REG_INT_SRC2_BIT_XN)
+			iio_push_event(indio_dev,
+				       IIO_MOD_EVENT_CODE(IIO_ACCEL,
+				       0,
+				       IIO_MOD_X,
+				       IIO_EV_TYPE_THRESH,
+				       IIO_EV_DIR_FALLING),
+				       data->timestamp);
+		if (ret & KXCJK1013_REG_INT_SRC2_BIT_XP)
+			iio_push_event(indio_dev,
+				       IIO_MOD_EVENT_CODE(IIO_ACCEL,
+				       0,
+				       IIO_MOD_X,
+				       IIO_EV_TYPE_THRESH,
+				       IIO_EV_DIR_RISING),
+				       data->timestamp);
+
+
+		if (ret & KXCJK1013_REG_INT_SRC2_BIT_YN)
+			iio_push_event(indio_dev,
+				       IIO_MOD_EVENT_CODE(IIO_ACCEL,
+				       0,
+				       IIO_MOD_Y,
+				       IIO_EV_TYPE_THRESH,
+				       IIO_EV_DIR_FALLING),
+				       data->timestamp);
+		if (ret & KXCJK1013_REG_INT_SRC2_BIT_YP)
+			iio_push_event(indio_dev,
+				       IIO_MOD_EVENT_CODE(IIO_ACCEL,
+				       0,
+				       IIO_MOD_Y,
+				       IIO_EV_TYPE_THRESH,
+				       IIO_EV_DIR_RISING),
+				       data->timestamp);
+
+		if (ret & KXCJK1013_REG_INT_SRC2_BIT_ZN)
+			iio_push_event(indio_dev,
+				       IIO_MOD_EVENT_CODE(IIO_ACCEL,
+				       0,
+				       IIO_MOD_Z,
+				       IIO_EV_TYPE_THRESH,
+				       IIO_EV_DIR_FALLING),
+				       data->timestamp);
+		if (ret & KXCJK1013_REG_INT_SRC2_BIT_ZP)
+			iio_push_event(indio_dev,
+				       IIO_MOD_EVENT_CODE(IIO_ACCEL,
+				       0,
+				       IIO_MOD_Z,
+				       IIO_EV_TYPE_THRESH,
+				       IIO_EV_DIR_RISING),
+				       data->timestamp);
+	}
+
+ack_intr:
+	if (data->dready_trigger_on)
+		return IRQ_HANDLED;
+
+	ret = i2c_smbus_read_byte_data(data->client, KXCJK1013_REG_INT_REL);
+	if (ret < 0)
+		dev_err(&data->client->dev, "Error reading reg_int_rel\n");
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t kxcjk1013_data_rdy_trig_poll(int irq, void *private)
+{
+	struct iio_dev *indio_dev = private;
+	struct kxcjk1013_data *data = iio_priv(indio_dev);
+
+	data->timestamp = iio_get_time_ns();
+
+	if (data->dready_trigger_on)
+		iio_trigger_poll(data->dready_trig);
+	else if (data->motion_trigger_on)
+		iio_trigger_poll(data->motion_trig);
+
+	if (data->ev_enable_state)
+		return IRQ_WAKE_THREAD;
+	else
+		return IRQ_HANDLED;
+}
+
+static const char *kxcjk1013_match_acpi_device(struct device *dev,
+					       enum kx_chipset *chipset)
 {
 	const struct acpi_device_id *id;
+	id = acpi_match_device(dev->driver->acpi_match_table, dev);
+	if (!id)
+		return NULL;
+	*chipset = (enum kx_chipset)id->driver_data;
+
+	return dev_name(dev);
+}
+
+static int kxcjk1013_gpio_probe(struct i2c_client *client,
+				struct kxcjk1013_data *data)
+{
 	struct device *dev;
 	struct gpio_desc *gpio;
 	int ret;
@@ -557,12 +1151,6 @@ static int kxcjk1013_acpi_gpio_probe(struct i2c_client *client,
 		return -EINVAL;
 
 	dev = &client->dev;
-	if (!ACPI_HANDLE(dev))
-		return -ENODEV;
-
-	id = acpi_match_device(dev->driver->acpi_match_table, dev);
-	if (!id)
-		return -ENODEV;
 
 	/* data ready gpio interrupt pin */
 	gpio = devm_gpiod_get_index(dev, "kxcjk1013_int", 0);
@@ -587,8 +1175,8 @@ static int kxcjk1013_probe(struct i2c_client *client,
 {
 	struct kxcjk1013_data *data;
 	struct iio_dev *indio_dev;
-	struct iio_trigger *trig = NULL;
 	struct kxcjk_1013_platform_data *pdata;
+	const char *name;
 	int ret;
 
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
@@ -605,6 +1193,15 @@ static int kxcjk1013_probe(struct i2c_client *client,
 	else
 		data->active_high_intr = true; /* default polarity */
 
+	if (id) {
+		data->chipset = (enum kx_chipset)(id->driver_data);
+		name = id->name;
+	} else if (ACPI_HANDLE(&client->dev)) {
+		name = kxcjk1013_match_acpi_device(&client->dev,
+						   &data->chipset);
+	} else
+		return -ENODEV;
+
 	ret = kxcjk1013_chip_init(data);
 	if (ret < 0)
 		return ret;
@@ -614,41 +1211,54 @@ static int kxcjk1013_probe(struct i2c_client *client,
 	indio_dev->dev.parent = &client->dev;
 	indio_dev->channels = kxcjk1013_channels;
 	indio_dev->num_channels = ARRAY_SIZE(kxcjk1013_channels);
-	indio_dev->name = KXCJK1013_DRV_NAME;
+	indio_dev->name = name;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &kxcjk1013_info;
 
 	if (client->irq < 0)
-		client->irq = kxcjk1013_acpi_gpio_probe(client, data);
+		client->irq = kxcjk1013_gpio_probe(client, data);
 
 	if (client->irq >= 0) {
-		trig = iio_trigger_alloc("%s-dev%d", indio_dev->name,
-					 indio_dev->id);
-		if (!trig)
-			return -ENOMEM;
+		ret = devm_request_threaded_irq(&client->dev, client->irq,
+						kxcjk1013_data_rdy_trig_poll,
+						kxcjk1013_event_handler,
+						IRQF_TRIGGER_RISING,
+						KXCJK1013_IRQ_NAME,
+						indio_dev);
+		if (ret)
+			return ret;
 
-		data->trig_mode = true;
+		data->dready_trig = devm_iio_trigger_alloc(&client->dev,
+							   "%s-dev%d",
+							   indio_dev->name,
+							   indio_dev->id);
+		if (!data->dready_trig)
+			return -ENOMEM;
 
-		ret = devm_request_irq(&client->dev, client->irq,
-					iio_trigger_generic_data_rdy_poll,
-					IRQF_TRIGGER_RISING,
-					KXCJK1013_IRQ_NAME,
-					trig);
-		if (ret) {
-			dev_err(&client->dev, "unable to request IRQ\n");
-			goto err_trigger_free;
-		}
+		data->motion_trig = devm_iio_trigger_alloc(&client->dev,
+							  "%s-any-motion-dev%d",
+							  indio_dev->name,
+							  indio_dev->id);
+		if (!data->motion_trig)
+			return -ENOMEM;
 
-		trig->dev.parent = &client->dev;
-		trig->ops = &kxcjk1013_trigger_ops;
-		iio_trigger_set_drvdata(trig, indio_dev);
-		data->trig = trig;
-		indio_dev->trig = trig;
+		data->dready_trig->dev.parent = &client->dev;
+		data->dready_trig->ops = &kxcjk1013_trigger_ops;
+		iio_trigger_set_drvdata(data->dready_trig, indio_dev);
+		indio_dev->trig = data->dready_trig;
 		iio_trigger_get(indio_dev->trig);
-
-		ret = iio_trigger_register(trig);
+		ret = iio_trigger_register(data->dready_trig);
 		if (ret)
-			goto err_trigger_free;
+			return ret;
+
+		data->motion_trig->dev.parent = &client->dev;
+		data->motion_trig->ops = &kxcjk1013_trigger_ops;
+		iio_trigger_set_drvdata(data->motion_trig, indio_dev);
+		ret = iio_trigger_register(data->motion_trig);
+		if (ret) {
+			data->motion_trig = NULL;
+			goto err_trigger_unregister;
+		}
 
 		ret = iio_triggered_buffer_setup(indio_dev,
 						&iio_pollfunc_store_time,
@@ -661,23 +1271,33 @@ static int kxcjk1013_probe(struct i2c_client *client,
 		}
 	}
 
-	ret = devm_iio_device_register(&client->dev, indio_dev);
+	ret = iio_device_register(indio_dev);
 	if (ret < 0) {
 		dev_err(&client->dev, "unable to register iio device\n");
 		goto err_buffer_cleanup;
 	}
 
+	ret = pm_runtime_set_active(&client->dev);
+	if (ret)
+		goto err_iio_unregister;
+
+	pm_runtime_enable(&client->dev);
+	pm_runtime_set_autosuspend_delay(&client->dev,
+					 KXCJK1013_SLEEP_DELAY_MS);
+	pm_runtime_use_autosuspend(&client->dev);
+
 	return 0;
 
+err_iio_unregister:
+	iio_device_unregister(indio_dev);
 err_buffer_cleanup:
-	if (data->trig_mode)
+	if (data->dready_trig)
 		iio_triggered_buffer_cleanup(indio_dev);
 err_trigger_unregister:
-	if (data->trig_mode)
-		iio_trigger_unregister(trig);
-err_trigger_free:
-	if (data->trig_mode)
-		iio_trigger_free(trig);
+	if (data->dready_trig)
+		iio_trigger_unregister(data->dready_trig);
+	if (data->motion_trig)
+		iio_trigger_unregister(data->motion_trig);
 
 	return ret;
 }
@@ -687,10 +1307,16 @@ static int kxcjk1013_remove(struct i2c_client *client)
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 	struct kxcjk1013_data *data = iio_priv(indio_dev);
 
-	if (data->trig_mode) {
+	pm_runtime_disable(&client->dev);
+	pm_runtime_set_suspended(&client->dev);
+	pm_runtime_put_noidle(&client->dev);
+
+	iio_device_unregister(indio_dev);
+
+	if (data->dready_trig) {
 		iio_triggered_buffer_cleanup(indio_dev);
-		iio_trigger_unregister(data->trig);
-		iio_trigger_free(data->trig);
+		iio_trigger_unregister(data->dready_trig);
+		iio_trigger_unregister(data->motion_trig);
 	}
 
 	mutex_lock(&data->mutex);
@@ -705,43 +1331,80 @@ static int kxcjk1013_suspend(struct device *dev)
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
 	struct kxcjk1013_data *data = iio_priv(indio_dev);
+	int ret;
 
 	mutex_lock(&data->mutex);
-	kxcjk1013_set_mode(data, STANDBY);
+	ret = kxcjk1013_set_mode(data, STANDBY);
 	mutex_unlock(&data->mutex);
 
-	return 0;
+	return ret;
 }
 
 static int kxcjk1013_resume(struct device *dev)
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
 	struct kxcjk1013_data *data = iio_priv(indio_dev);
+	int ret = 0;
 
 	mutex_lock(&data->mutex);
+	/* Check, if the suspend occured while active */
+	if (data->dready_trigger_on || data->motion_trigger_on ||
+							data->ev_enable_state)
+		ret = kxcjk1013_set_mode(data, OPERATION);
+	mutex_unlock(&data->mutex);
 
-	if (data->power_state)
-		kxcjk1013_set_mode(data, OPERATION);
+	return ret;
+}
+#endif
 
-	mutex_unlock(&data->mutex);
+#ifdef CONFIG_PM_RUNTIME
+static int kxcjk1013_runtime_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct kxcjk1013_data *data = iio_priv(indio_dev);
 
-	return 0;
+	return kxcjk1013_set_mode(data, STANDBY);
 }
 
-static SIMPLE_DEV_PM_OPS(kxcjk1013_pm_ops, kxcjk1013_suspend, kxcjk1013_resume);
-#define KXCJK1013_PM_OPS (&kxcjk1013_pm_ops)
-#else
-#define KXCJK1013_PM_OPS NULL
+static int kxcjk1013_runtime_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct kxcjk1013_data *data = iio_priv(indio_dev);
+	int ret;
+	int sleep_val;
+
+	ret = kxcjk1013_set_mode(data, OPERATION);
+	if (ret < 0)
+		return ret;
+
+	sleep_val = kxcjk1013_get_startup_times(data);
+	if (sleep_val < 20000)
+		usleep_range(sleep_val, 20000);
+	else
+		msleep_interruptible(sleep_val/1000);
+
+	return 0;
+}
 #endif
 
+static const struct dev_pm_ops kxcjk1013_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(kxcjk1013_suspend, kxcjk1013_resume)
+	SET_RUNTIME_PM_OPS(kxcjk1013_runtime_suspend,
+			   kxcjk1013_runtime_resume, NULL)
+};
+
 static const struct acpi_device_id kx_acpi_match[] = {
-	{"KXCJ1013", 0},
+	{"KXCJ1013", KXCJK1013},
+	{"KXCJ1008", KXCJ91008},
+	{"KXTJ1009", KXTJ21009},
 	{ },
 };
 MODULE_DEVICE_TABLE(acpi, kx_acpi_match);
 
 static const struct i2c_device_id kxcjk1013_id[] = {
-	{"kxcjk1013", 0},
+	{"kxcjk1013", KXCJK1013},
+	{"kxcj91008", KXCJ91008},
+	{"kxtj21009", KXTJ21009},
 	{}
 };
 
@@ -751,7 +1414,7 @@ static struct i2c_driver kxcjk1013_driver = {
 	.driver = {
 		.name	= KXCJK1013_DRV_NAME,
 		.acpi_match_table = ACPI_PTR(kx_acpi_match),
-		.pm	= KXCJK1013_PM_OPS,
+		.pm	= &kxcjk1013_pm_ops,
 	},
 	.probe		= kxcjk1013_probe,
 	.remove		= kxcjk1013_remove,
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 11b048a..88bdc8f 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -129,7 +129,7 @@ config AT91_ADC
 
 config EXYNOS_ADC
 	tristate "Exynos ADC driver support"
-	depends on ARCH_EXYNOS || (OF && COMPILE_TEST)
+	depends on ARCH_EXYNOS || ARCH_S3C24XX || ARCH_S3C64XX || (OF && COMPILE_TEST)
 	help
 	  Core support for the ADC block found in the Samsung EXYNOS series
 	  of SoCs for drivers such as the touchscreen and hwmon to use to share
@@ -206,6 +206,16 @@ config NAU7802
 	  To compile this driver as a module, choose M here: the
 	  module will be called nau7802.
 
+config ROCKCHIP_SARADC
+	tristate "Rockchip SARADC driver"
+	depends on ARCH_ROCKCHIP || (ARM && COMPILE_TEST)
+	help
+	  Say yes here to build support for the SARADC found in SoCs from
+	  Rockchip.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called rockchip_saradc.
+
 config TI_ADC081C
 	tristate "Texas Instruments ADC081C021/027"
 	depends on I2C
@@ -216,6 +226,16 @@ config TI_ADC081C
 	  This driver can also be built as a module. If so, the module will be
 	  called ti-adc081c.
 
+config TI_ADC128S052
+	tristate "Texas Instruments ADC128S052"
+	depends on SPI
+	help
+	  If you say yes here you get support for Texas Instruments ADC128S052
+	  chip.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called ti-adc128s052.
+
 config TI_AM335X_ADC
 	tristate "TI's AM335X ADC driver"
 	depends on MFD_TI_AM335X_TSCADC
diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile
index ad81b51..cb88a6a 100644
--- a/drivers/iio/adc/Makefile
+++ b/drivers/iio/adc/Makefile
@@ -22,7 +22,9 @@ obj-$(CONFIG_MCP320X) += mcp320x.o
 obj-$(CONFIG_MCP3422) += mcp3422.o
 obj-$(CONFIG_MEN_Z188_ADC) += men_z188_adc.o
 obj-$(CONFIG_NAU7802) += nau7802.o
+obj-$(CONFIG_ROCKCHIP_SARADC) += rockchip_saradc.o
 obj-$(CONFIG_TI_ADC081C) += ti-adc081c.o
+obj-$(CONFIG_TI_ADC128S052) += ti-adc128s052.o
 obj-$(CONFIG_TI_AM335X_ADC) += ti_am335x_adc.o
 obj-$(CONFIG_TWL4030_MADC) += twl4030-madc.o
 obj-$(CONFIG_TWL6030_GPADC) += twl6030-gpadc.o
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 7eadaf1..ff61ae5 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -267,7 +267,7 @@ static irqreturn_t at91_adc_trigger_handler(int irq, void *p)
 }
 
 /* Handler for classic adc channel eoc trigger */
-void handle_adc_eoc_trigger(int irq, struct iio_dev *idev)
+static void handle_adc_eoc_trigger(int irq, struct iio_dev *idev)
 {
 	struct at91_adc_state *st = iio_priv(idev);
 
diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c
index fc9dfc2..43620fd 100644
--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -40,13 +40,16 @@
 #include <linux/iio/machine.h>
 #include <linux/iio/driver.h>
 
-/* EXYNOS4412/5250 ADC_V1 registers definitions */
+/* S3C/EXYNOS4412/5250 ADC_V1 registers definitions */
 #define ADC_V1_CON(x)		((x) + 0x00)
 #define ADC_V1_DLY(x)		((x) + 0x08)
 #define ADC_V1_DATX(x)		((x) + 0x0C)
 #define ADC_V1_INTCLR(x)	((x) + 0x18)
 #define ADC_V1_MUX(x)		((x) + 0x1c)
 
+/* S3C2410 ADC registers definitions */
+#define ADC_S3C2410_MUX(x)	((x) + 0x18)
+
 /* Future ADC_V2 registers definitions */
 #define ADC_V2_CON1(x)		((x) + 0x00)
 #define ADC_V2_CON2(x)		((x) + 0x04)
@@ -61,6 +64,11 @@
 #define ADC_V1_CON_PRSCLV(x)	(((x) & 0xFF) << 6)
 #define ADC_V1_CON_STANDBY	(1u << 2)
 
+/* Bit definitions for S3C2410 ADC */
+#define ADC_S3C2410_CON_SELMUX(x) (((x) & 7) << 3)
+#define ADC_S3C2410_DATX_MASK	0x3FF
+#define ADC_S3C2416_CON_RES_SEL	(1u << 3)
+
 /* Bit definitions for ADC_V2 */
 #define ADC_V2_CON1_SOFT_RESET	(1u << 2)
 
@@ -77,6 +85,7 @@
 
 /* Bit definitions common for ADC_V1 and ADC_V2 */
 #define ADC_CON_EN_START	(1u << 0)
+#define ADC_CON_EN_START_MASK	(0x3 << 0)
 #define ADC_DATX_MASK		0xFFF
 
 #define EXYNOS_ADC_TIMEOUT	(msecs_to_jiffies(100))
@@ -100,6 +109,8 @@ struct exynos_adc {
 struct exynos_adc_data {
 	int num_channels;
 	bool needs_sclk;
+	bool needs_adc_phy;
+	u32 mask;
 
 	void (*init_hw)(struct exynos_adc *info);
 	void (*exit_hw)(struct exynos_adc *info);
@@ -171,7 +182,8 @@ static void exynos_adc_v1_init_hw(struct exynos_adc *info)
 {
 	u32 con1;
 
-	writel(1, info->enable_reg);
+	if (info->data->needs_adc_phy)
+		writel(1, info->enable_reg);
 
 	/* set default prescaler values and Enable prescaler */
 	con1 =  ADC_V1_CON_PRSCLV(49) | ADC_V1_CON_PRSCEN;
@@ -185,7 +197,8 @@ static void exynos_adc_v1_exit_hw(struct exynos_adc *info)
 {
 	u32 con;
 
-	writel(0, info->enable_reg);
+	if (info->data->needs_adc_phy)
+		writel(0, info->enable_reg);
 
 	con = readl(ADC_V1_CON(info->regs));
 	con |= ADC_V1_CON_STANDBY;
@@ -210,6 +223,8 @@ static void exynos_adc_v1_start_conv(struct exynos_adc *info,
 
 static const struct exynos_adc_data exynos_adc_v1_data = {
 	.num_channels	= MAX_ADC_V1_CHANNELS,
+	.mask		= ADC_DATX_MASK,	/* 12 bit ADC resolution */
+	.needs_adc_phy	= true,
 
 	.init_hw	= exynos_adc_v1_init_hw,
 	.exit_hw	= exynos_adc_v1_exit_hw,
@@ -217,11 +232,89 @@ static const struct exynos_adc_data exynos_adc_v1_data = {
 	.start_conv	= exynos_adc_v1_start_conv,
 };
 
+static void exynos_adc_s3c2416_start_conv(struct exynos_adc *info,
+					  unsigned long addr)
+{
+	u32 con1;
+
+	/* Enable 12 bit ADC resolution */
+	con1 = readl(ADC_V1_CON(info->regs));
+	con1 |= ADC_S3C2416_CON_RES_SEL;
+	writel(con1, ADC_V1_CON(info->regs));
+
+	/* Select channel for S3C2416 */
+	writel(addr, ADC_S3C2410_MUX(info->regs));
+
+	con1 = readl(ADC_V1_CON(info->regs));
+	writel(con1 | ADC_CON_EN_START, ADC_V1_CON(info->regs));
+}
+
+static struct exynos_adc_data const exynos_adc_s3c2416_data = {
+	.num_channels	= MAX_ADC_V1_CHANNELS,
+	.mask		= ADC_DATX_MASK,	/* 12 bit ADC resolution */
+
+	.init_hw	= exynos_adc_v1_init_hw,
+	.exit_hw	= exynos_adc_v1_exit_hw,
+	.start_conv	= exynos_adc_s3c2416_start_conv,
+};
+
+static void exynos_adc_s3c2443_start_conv(struct exynos_adc *info,
+					  unsigned long addr)
+{
+	u32 con1;
+
+	/* Select channel for S3C2433 */
+	writel(addr, ADC_S3C2410_MUX(info->regs));
+
+	con1 = readl(ADC_V1_CON(info->regs));
+	writel(con1 | ADC_CON_EN_START, ADC_V1_CON(info->regs));
+}
+
+static struct exynos_adc_data const exynos_adc_s3c2443_data = {
+	.num_channels	= MAX_ADC_V1_CHANNELS,
+	.mask		= ADC_S3C2410_DATX_MASK, /* 10 bit ADC resolution */
+
+	.init_hw	= exynos_adc_v1_init_hw,
+	.exit_hw	= exynos_adc_v1_exit_hw,
+	.start_conv	= exynos_adc_s3c2443_start_conv,
+};
+
+static void exynos_adc_s3c64xx_start_conv(struct exynos_adc *info,
+					  unsigned long addr)
+{
+	u32 con1;
+
+	con1 = readl(ADC_V1_CON(info->regs));
+	con1 &= ~ADC_S3C2410_CON_SELMUX(0x7);
+	con1 |= ADC_S3C2410_CON_SELMUX(addr);
+	writel(con1 | ADC_CON_EN_START, ADC_V1_CON(info->regs));
+}
+
+static struct exynos_adc_data const exynos_adc_s3c24xx_data = {
+	.num_channels	= MAX_ADC_V1_CHANNELS,
+	.mask		= ADC_S3C2410_DATX_MASK, /* 10 bit ADC resolution */
+
+	.init_hw	= exynos_adc_v1_init_hw,
+	.exit_hw	= exynos_adc_v1_exit_hw,
+	.start_conv	= exynos_adc_s3c64xx_start_conv,
+};
+
+static struct exynos_adc_data const exynos_adc_s3c64xx_data = {
+	.num_channels	= MAX_ADC_V1_CHANNELS,
+	.mask		= ADC_DATX_MASK,	/* 12 bit ADC resolution */
+
+	.init_hw	= exynos_adc_v1_init_hw,
+	.exit_hw	= exynos_adc_v1_exit_hw,
+	.clear_irq	= exynos_adc_v1_clear_irq,
+	.start_conv	= exynos_adc_s3c64xx_start_conv,
+};
+
 static void exynos_adc_v2_init_hw(struct exynos_adc *info)
 {
 	u32 con1, con2;
 
-	writel(1, info->enable_reg);
+	if (info->data->needs_adc_phy)
+		writel(1, info->enable_reg);
 
 	con1 = ADC_V2_CON1_SOFT_RESET;
 	writel(con1, ADC_V2_CON1(info->regs));
@@ -238,7 +331,8 @@ static void exynos_adc_v2_exit_hw(struct exynos_adc *info)
 {
 	u32 con;
 
-	writel(0, info->enable_reg);
+	if (info->data->needs_adc_phy)
+		writel(0, info->enable_reg);
 
 	con = readl(ADC_V2_CON1(info->regs));
 	con &= ~ADC_CON_EN_START;
@@ -266,6 +360,8 @@ static void exynos_adc_v2_start_conv(struct exynos_adc *info,
 
 static const struct exynos_adc_data exynos_adc_v2_data = {
 	.num_channels	= MAX_ADC_V2_CHANNELS,
+	.mask		= ADC_DATX_MASK, /* 12 bit ADC resolution */
+	.needs_adc_phy	= true,
 
 	.init_hw	= exynos_adc_v2_init_hw,
 	.exit_hw	= exynos_adc_v2_exit_hw,
@@ -275,7 +371,9 @@ static const struct exynos_adc_data exynos_adc_v2_data = {
 
 static const struct exynos_adc_data exynos3250_adc_data = {
 	.num_channels	= MAX_EXYNOS3250_ADC_CHANNELS,
+	.mask		= ADC_DATX_MASK, /* 12 bit ADC resolution */
 	.needs_sclk	= true,
+	.needs_adc_phy	= true,
 
 	.init_hw	= exynos_adc_v2_init_hw,
 	.exit_hw	= exynos_adc_v2_exit_hw,
@@ -285,6 +383,21 @@ static const struct exynos_adc_data exynos3250_adc_data = {
 
 static const struct of_device_id exynos_adc_match[] = {
 	{
+		.compatible = "samsung,s3c2410-adc",
+		.data = &exynos_adc_s3c24xx_data,
+	}, {
+		.compatible = "samsung,s3c2416-adc",
+		.data = &exynos_adc_s3c2416_data,
+	}, {
+		.compatible = "samsung,s3c2440-adc",
+		.data = &exynos_adc_s3c24xx_data,
+	}, {
+		.compatible = "samsung,s3c2443-adc",
+		.data = &exynos_adc_s3c2443_data,
+	}, {
+		.compatible = "samsung,s3c6410-adc",
+		.data = &exynos_adc_s3c64xx_data,
+	}, {
 		.compatible = "samsung,exynos-adc-v1",
 		.data = &exynos_adc_v1_data,
 	}, {
@@ -347,9 +460,10 @@ static int exynos_read_raw(struct iio_dev *indio_dev,
 static irqreturn_t exynos_adc_isr(int irq, void *dev_id)
 {
 	struct exynos_adc *info = (struct exynos_adc *)dev_id;
+	u32 mask = info->data->mask;
 
 	/* Read value */
-	info->value = readl(ADC_V1_DATX(info->regs)) & ADC_DATX_MASK;
+	info->value = readl(ADC_V1_DATX(info->regs)) & mask;
 
 	/* clear irq */
 	if (info->data->clear_irq)
@@ -442,10 +556,13 @@ static int exynos_adc_probe(struct platform_device *pdev)
 	if (IS_ERR(info->regs))
 		return PTR_ERR(info->regs);
 
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	info->enable_reg = devm_ioremap_resource(&pdev->dev, mem);
-	if (IS_ERR(info->enable_reg))
-		return PTR_ERR(info->enable_reg);
+
+	if (info->data->needs_adc_phy) {
+		mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+		info->enable_reg = devm_ioremap_resource(&pdev->dev, mem);
+		if (IS_ERR(info->enable_reg))
+			return PTR_ERR(info->enable_reg);
+	}
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
@@ -606,7 +723,6 @@ static struct platform_driver exynos_adc_driver = {
 	.remove		= exynos_adc_remove,
 	.driver		= {
 		.name	= "exynos-adc",
-		.owner	= THIS_MODULE,
 		.of_match_table = exynos_adc_match,
 		.pm	= &exynos_adc_pm_ops,
 	},
diff --git a/drivers/iio/adc/lp8788_adc.c b/drivers/iio/adc/lp8788_adc.c
index 5c8c915..152cfc8 100644
--- a/drivers/iio/adc/lp8788_adc.c
+++ b/drivers/iio/adc/lp8788_adc.c
@@ -244,7 +244,6 @@ static struct platform_driver lp8788_adc_driver = {
 	.remove = lp8788_adc_remove,
 	.driver = {
 		.name = LP8788_DEV_ADC,
-		.owner = THIS_MODULE,
 	},
 };
 module_platform_driver(lp8788_adc_driver);
diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c
new file mode 100644
index 0000000..e074a0b
--- /dev/null
+++ b/drivers/iio/adc/rockchip_saradc.c
@@ -0,0 +1,316 @@
+/*
+ * Rockchip Successive Approximation Register (SAR) A/D Converter
+ * Copyright (C) 2014 ROCKCHIP, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/clk.h>
+#include <linux/completion.h>
+#include <linux/regulator/consumer.h>
+#include <linux/iio/iio.h>
+
+#define SARADC_DATA			0x00
+#define SARADC_DATA_MASK		0x3ff
+
+#define SARADC_STAS			0x04
+#define SARADC_STAS_BUSY		BIT(0)
+
+#define SARADC_CTRL			0x08
+#define SARADC_CTRL_IRQ_STATUS		BIT(6)
+#define SARADC_CTRL_IRQ_ENABLE		BIT(5)
+#define SARADC_CTRL_POWER_CTRL		BIT(3)
+#define SARADC_CTRL_CHN_MASK		0x7
+
+#define SARADC_DLY_PU_SOC		0x0c
+#define SARADC_DLY_PU_SOC_MASK		0x3f
+
+#define SARADC_BITS			10
+#define SARADC_TIMEOUT			msecs_to_jiffies(100)
+
+struct rockchip_saradc {
+	void __iomem		*regs;
+	struct clk		*pclk;
+	struct clk		*clk;
+	struct completion	completion;
+	struct regulator	*vref;
+	u16			last_val;
+};
+
+static int rockchip_saradc_read_raw(struct iio_dev *indio_dev,
+				    struct iio_chan_spec const *chan,
+				    int *val, int *val2, long mask)
+{
+	struct rockchip_saradc *info = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		mutex_lock(&indio_dev->mlock);
+
+		reinit_completion(&info->completion);
+
+		/* 8 clock periods as delay between power up and start cmd */
+		writel_relaxed(8, info->regs + SARADC_DLY_PU_SOC);
+
+		/* Select the channel to be used and trigger conversion */
+		writel(SARADC_CTRL_POWER_CTRL
+				| (chan->channel & SARADC_CTRL_CHN_MASK)
+				| SARADC_CTRL_IRQ_ENABLE,
+		       info->regs + SARADC_CTRL);
+
+		if (!wait_for_completion_timeout(&info->completion,
+						 SARADC_TIMEOUT)) {
+			writel_relaxed(0, info->regs + SARADC_CTRL);
+			mutex_unlock(&indio_dev->mlock);
+			return -ETIMEDOUT;
+		}
+
+		*val = info->last_val;
+		mutex_unlock(&indio_dev->mlock);
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		ret = regulator_get_voltage(info->vref);
+		if (ret < 0) {
+			dev_err(&indio_dev->dev, "failed to get voltage\n");
+			return ret;
+		}
+
+		*val = ret / 1000;
+		*val2 = SARADC_BITS;
+		return IIO_VAL_FRACTIONAL_LOG2;
+	default:
+		return -EINVAL;
+	}
+}
+
+static irqreturn_t rockchip_saradc_isr(int irq, void *dev_id)
+{
+	struct rockchip_saradc *info = (struct rockchip_saradc *)dev_id;
+
+	/* Read value */
+	info->last_val = readl_relaxed(info->regs + SARADC_DATA);
+	info->last_val &= SARADC_DATA_MASK;
+
+	/* Clear irq & power down adc */
+	writel_relaxed(0, info->regs + SARADC_CTRL);
+
+	complete(&info->completion);
+
+	return IRQ_HANDLED;
+}
+
+static const struct iio_info rockchip_saradc_iio_info = {
+	.read_raw = rockchip_saradc_read_raw,
+	.driver_module = THIS_MODULE,
+};
+
+#define ADC_CHANNEL(_index, _id) {				\
+	.type = IIO_VOLTAGE,					\
+	.indexed = 1,						\
+	.channel = _index,					\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
+	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),	\
+	.datasheet_name = _id,					\
+}
+
+static const struct iio_chan_spec rockchip_saradc_iio_channels[] = {
+	ADC_CHANNEL(0, "adc0"),
+	ADC_CHANNEL(1, "adc1"),
+	ADC_CHANNEL(2, "adc2"),
+};
+
+static int rockchip_saradc_probe(struct platform_device *pdev)
+{
+	struct rockchip_saradc *info = NULL;
+	struct device_node *np = pdev->dev.of_node;
+	struct iio_dev *indio_dev = NULL;
+	struct resource	*mem;
+	int ret;
+	int irq;
+
+	if (!np)
+		return -ENODEV;
+
+	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*info));
+	if (!indio_dev) {
+		dev_err(&pdev->dev, "failed allocating iio device\n");
+		return -ENOMEM;
+	}
+	info = iio_priv(indio_dev);
+
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	info->regs = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(info->regs))
+		return PTR_ERR(info->regs);
+
+	init_completion(&info->completion);
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "no irq resource?\n");
+		return irq;
+	}
+
+	ret = devm_request_irq(&pdev->dev, irq, rockchip_saradc_isr,
+			       0, dev_name(&pdev->dev), info);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed requesting irq %d\n", irq);
+		return ret;
+	}
+
+	info->pclk = devm_clk_get(&pdev->dev, "apb_pclk");
+	if (IS_ERR(info->pclk)) {
+		dev_err(&pdev->dev, "failed to get pclk\n");
+		return PTR_ERR(info->pclk);
+	}
+
+	info->clk = devm_clk_get(&pdev->dev, "saradc");
+	if (IS_ERR(info->clk)) {
+		dev_err(&pdev->dev, "failed to get adc clock\n");
+		return PTR_ERR(info->clk);
+	}
+
+	info->vref = devm_regulator_get(&pdev->dev, "vref");
+	if (IS_ERR(info->vref)) {
+		dev_err(&pdev->dev, "failed to get regulator, %ld\n",
+			PTR_ERR(info->vref));
+		return PTR_ERR(info->vref);
+	}
+
+	/*
+	 * Use a default of 1MHz for the converter clock.
+	 * This may become user-configurable in the future.
+	 */
+	ret = clk_set_rate(info->clk, 1000000);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to set adc clk rate, %d\n", ret);
+		return ret;
+	}
+
+	ret = regulator_enable(info->vref);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to enable vref regulator\n");
+		return ret;
+	}
+
+	ret = clk_prepare_enable(info->pclk);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to enable pclk\n");
+		goto err_reg_voltage;
+	}
+
+	ret = clk_prepare_enable(info->clk);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to enable converter clock\n");
+		goto err_pclk;
+	}
+
+	platform_set_drvdata(pdev, indio_dev);
+
+	indio_dev->name = dev_name(&pdev->dev);
+	indio_dev->dev.parent = &pdev->dev;
+	indio_dev->dev.of_node = pdev->dev.of_node;
+	indio_dev->info = &rockchip_saradc_iio_info;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	indio_dev->channels = rockchip_saradc_iio_channels;
+	indio_dev->num_channels = ARRAY_SIZE(rockchip_saradc_iio_channels);
+
+	ret = iio_device_register(indio_dev);
+	if (ret)
+		goto err_clk;
+
+	return 0;
+
+err_clk:
+	clk_disable_unprepare(info->clk);
+err_pclk:
+	clk_disable_unprepare(info->pclk);
+err_reg_voltage:
+	regulator_disable(info->vref);
+	return ret;
+}
+
+static int rockchip_saradc_remove(struct platform_device *pdev)
+{
+	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+	struct rockchip_saradc *info = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+	clk_disable_unprepare(info->clk);
+	clk_disable_unprepare(info->pclk);
+	regulator_disable(info->vref);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int rockchip_saradc_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct rockchip_saradc *info = iio_priv(indio_dev);
+
+	clk_disable_unprepare(info->clk);
+	clk_disable_unprepare(info->pclk);
+	regulator_disable(info->vref);
+
+	return 0;
+}
+
+static int rockchip_saradc_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct rockchip_saradc *info = iio_priv(indio_dev);
+	int ret;
+
+	ret = regulator_enable(info->vref);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(info->pclk);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(info->clk);
+	if (ret)
+		return ret;
+
+	return ret;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(rockchip_saradc_pm_ops,
+			 rockchip_saradc_suspend, rockchip_saradc_resume);
+
+static const struct of_device_id rockchip_saradc_match[] = {
+	{ .compatible = "rockchip,saradc" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, rockchip_saradc_match);
+
+static struct platform_driver rockchip_saradc_driver = {
+	.probe		= rockchip_saradc_probe,
+	.remove		= rockchip_saradc_remove,
+	.driver		= {
+		.name	= "rockchip-saradc",
+		.owner	= THIS_MODULE,
+		.of_match_table = rockchip_saradc_match,
+		.pm	= &rockchip_saradc_pm_ops,
+	},
+};
+
+module_platform_driver(rockchip_saradc_driver);
diff --git a/drivers/iio/adc/ti-adc128s052.c b/drivers/iio/adc/ti-adc128s052.c
new file mode 100644
index 0000000..655cb56
--- /dev/null
+++ b/drivers/iio/adc/ti-adc128s052.c
@@ -0,0 +1,179 @@
+/*
+ * Copyright (C) 2014 Angelo Compagnucci <angelo.compagnucci@gmail.com>
+ *
+ * Driver for Texas Instruments' ADC128S052 ADC chip.
+ * Datasheet can be found here:
+ * http://www.ti.com/lit/ds/symlink/adc128s052.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/err.h>
+#include <linux/spi/spi.h>
+#include <linux/module.h>
+#include <linux/iio/iio.h>
+#include <linux/regulator/consumer.h>
+
+struct adc128 {
+	struct spi_device *spi;
+
+	struct regulator *reg;
+	struct mutex lock;
+
+	u8 buffer[2] ____cacheline_aligned;
+};
+
+static int adc128_adc_conversion(struct adc128 *adc, u8 channel)
+{
+	int ret;
+
+	mutex_lock(&adc->lock);
+
+	adc->buffer[0] = channel << 3;
+	adc->buffer[1] = 0;
+
+	ret = spi_write(adc->spi, &adc->buffer, 2);
+	if (ret < 0) {
+		mutex_unlock(&adc->lock);
+		return ret;
+	}
+
+	ret = spi_read(adc->spi, &adc->buffer, 2);
+
+	mutex_unlock(&adc->lock);
+
+	if (ret < 0)
+		return ret;
+
+	return ((adc->buffer[0] << 8 | adc->buffer[1]) & 0xFFF);
+}
+
+static int adc128_read_raw(struct iio_dev *indio_dev,
+			   struct iio_chan_spec const *channel, int *val,
+			   int *val2, long mask)
+{
+	struct adc128 *adc = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+
+		ret = adc128_adc_conversion(adc, channel->channel);
+		if (ret < 0)
+			return ret;
+
+		*val = ret;
+		return IIO_VAL_INT;
+
+	case IIO_CHAN_INFO_SCALE:
+
+		ret = regulator_get_voltage(adc->reg);
+		if (ret < 0)
+			return ret;
+
+		*val = ret / 1000;
+		*val2 = 12;
+		return IIO_VAL_FRACTIONAL_LOG2;
+
+	default:
+		return -EINVAL;
+	}
+
+}
+
+#define ADC128_VOLTAGE_CHANNEL(num)	\
+	{ \
+		.type = IIO_VOLTAGE, \
+		.indexed = 1, \
+		.channel = (num), \
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) \
+	}
+
+static const struct iio_chan_spec adc128_channels[] = {
+	ADC128_VOLTAGE_CHANNEL(0),
+	ADC128_VOLTAGE_CHANNEL(1),
+	ADC128_VOLTAGE_CHANNEL(2),
+	ADC128_VOLTAGE_CHANNEL(3),
+	ADC128_VOLTAGE_CHANNEL(4),
+	ADC128_VOLTAGE_CHANNEL(5),
+	ADC128_VOLTAGE_CHANNEL(6),
+	ADC128_VOLTAGE_CHANNEL(7),
+};
+
+static const struct iio_info adc128_info = {
+	.read_raw = adc128_read_raw,
+	.driver_module = THIS_MODULE,
+};
+
+static int adc128_probe(struct spi_device *spi)
+{
+	struct iio_dev *indio_dev;
+	struct adc128 *adc;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adc));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	adc = iio_priv(indio_dev);
+	adc->spi = spi;
+
+	spi_set_drvdata(spi, indio_dev);
+
+	indio_dev->dev.parent = &spi->dev;
+	indio_dev->name = spi_get_device_id(spi)->name;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->info = &adc128_info;
+
+	indio_dev->channels = adc128_channels;
+	indio_dev->num_channels = ARRAY_SIZE(adc128_channels);
+
+	adc->reg = devm_regulator_get(&spi->dev, "vref");
+	if (IS_ERR(adc->reg))
+		return PTR_ERR(adc->reg);
+
+	ret = regulator_enable(adc->reg);
+	if (ret < 0)
+		return ret;
+
+	mutex_init(&adc->lock);
+
+	ret = iio_device_register(indio_dev);
+
+	return ret;
+}
+
+static int adc128_remove(struct spi_device *spi)
+{
+	struct iio_dev *indio_dev = spi_get_drvdata(spi);
+	struct adc128 *adc = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+	regulator_disable(adc->reg);
+
+	return 0;
+}
+
+static const struct spi_device_id adc128_id[] = {
+	{ "adc128s052", 0},
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, adc128_id);
+
+static struct spi_driver adc128_driver = {
+	.driver = {
+		.name = "adc128s052",
+		.owner = THIS_MODULE,
+	},
+	.probe = adc128_probe,
+	.remove = adc128_remove,
+	.id_table = adc128_id,
+};
+module_spi_driver(adc128_driver);
+
+MODULE_AUTHOR("Angelo Compagnucci <angelo.compagnucci@gmail.com>");
+MODULE_DESCRIPTION("Texas Instruments ADC128S052");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index d5dc4c6..b730864 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -545,7 +545,6 @@ MODULE_DEVICE_TABLE(of, ti_adc_dt_ids);
 static struct platform_driver tiadc_driver = {
 	.driver = {
 		.name   = "TI-am335x-adc",
-		.owner	= THIS_MODULE,
 		.pm	= TIADC_PM_OPS,
 		.of_match_table = ti_adc_dt_ids,
 	},
diff --git a/drivers/iio/adc/twl4030-madc.c b/drivers/iio/adc/twl4030-madc.c
index eb86786..94c5f05 100644
--- a/drivers/iio/adc/twl4030-madc.c
+++ b/drivers/iio/adc/twl4030-madc.c
@@ -883,7 +883,6 @@ static struct platform_driver twl4030_madc_driver = {
 	.remove = twl4030_madc_remove,
 	.driver = {
 		   .name = "twl4030_madc",
-		   .owner = THIS_MODULE,
 		   .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 15282f1..89d8aa1 100644
--- a/drivers/iio/adc/twl6030-gpadc.c
+++ b/drivers/iio/adc/twl6030-gpadc.c
@@ -994,7 +994,6 @@ static struct platform_driver twl6030_gpadc_driver = {
 	.remove		= twl6030_gpadc_remove,
 	.driver		= {
 		.name	= DRIVER_NAME,
-		.owner	= THIS_MODULE,
 		.pm	= &twl6030_gpadc_pm_ops,
 		.of_match_table = of_twl6030_match_tbl,
 	},
diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c
index 44799eb5..4a10ae9 100644
--- a/drivers/iio/adc/vf610_adc.c
+++ b/drivers/iio/adc/vf610_adc.c
@@ -698,7 +698,6 @@ static struct platform_driver vf610_adc_driver = {
 	.remove         = vf610_adc_remove,
 	.driver         = {
 		.name   = DRIVER_NAME,
-		.owner  = THIS_MODULE,
 		.of_match_table = vf610_adc_match,
 		.pm     = &vf610_adc_pm_ops,
 	},
diff --git a/drivers/iio/adc/viperboard_adc.c b/drivers/iio/adc/viperboard_adc.c
index 9acf6b6..3be2e35 100644
--- a/drivers/iio/adc/viperboard_adc.c
+++ b/drivers/iio/adc/viperboard_adc.c
@@ -145,7 +145,6 @@ static int vprbrd_adc_probe(struct platform_device *pdev)
 static struct platform_driver vprbrd_adc_driver = {
 	.driver = {
 		.name	= "viperboard-adc",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= vprbrd_adc_probe,
 };
diff --git a/drivers/iio/adc/xilinx-xadc-core.c b/drivers/iio/adc/xilinx-xadc-core.c
index 626b397..a221f73 100644
--- a/drivers/iio/adc/xilinx-xadc-core.c
+++ b/drivers/iio/adc/xilinx-xadc-core.c
@@ -1201,12 +1201,16 @@ static int xadc_probe(struct platform_device *pdev)
 			goto err_device_free;
 
 		xadc->convst_trigger = xadc_alloc_trigger(indio_dev, "convst");
-		if (IS_ERR(xadc->convst_trigger))
+		if (IS_ERR(xadc->convst_trigger)) {
+			ret = PTR_ERR(xadc->convst_trigger);
 			goto err_triggered_buffer_cleanup;
+		}
 		xadc->samplerate_trigger = xadc_alloc_trigger(indio_dev,
 			"samplerate");
-		if (IS_ERR(xadc->samplerate_trigger))
+		if (IS_ERR(xadc->samplerate_trigger)) {
+			ret = PTR_ERR(xadc->samplerate_trigger);
 			goto err_free_convst_trigger;
+		}
 	}
 
 	xadc->clk = devm_clk_get(&pdev->dev, NULL);
@@ -1322,7 +1326,6 @@ static struct platform_driver xadc_driver = {
 	.remove = xadc_remove,
 	.driver = {
 		.name = "xadc",
-		.owner = THIS_MODULE,
 		.of_match_table = xadc_of_match_table,
 	},
 };
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 8a4ec00..24cfe4e 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -306,8 +306,11 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
 	if (of_pdata)
 		pdata = of_pdata;
 
-	if (pdata)
+	if (pdata) {
 		err = st_sensors_set_drdy_int_pin(indio_dev, pdata);
+		if (err < 0)
+			return err;
+	}
 
 	err = st_sensors_set_enable(indio_dev, false);
 	if (err < 0)
diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig
index f278eff..2236ea2 100644
--- a/drivers/iio/dac/Kconfig
+++ b/drivers/iio/dac/Kconfig
@@ -152,6 +152,14 @@ config MAX517
 	  This driver can also be built as a module.  If so, the module
 	  will be called max517.
 
+config MAX5821
+	tristate "Maxim MAX5821 DAC driver"
+	depends on I2C
+	depends on OF
+	help
+	  Say yes here to build support for Maxim MAX5821
+	  10 bits DAC.
+
 config MCP4725
 	tristate "MCP4725 DAC driver"
 	depends on I2C
diff --git a/drivers/iio/dac/Makefile b/drivers/iio/dac/Makefile
index 1010764..52be7e1 100644
--- a/drivers/iio/dac/Makefile
+++ b/drivers/iio/dac/Makefile
@@ -17,5 +17,6 @@ obj-$(CONFIG_AD5791) += ad5791.o
 obj-$(CONFIG_AD5686) += ad5686.o
 obj-$(CONFIG_AD7303) += ad7303.o
 obj-$(CONFIG_MAX517) += max517.o
+obj-$(CONFIG_MAX5821) += max5821.o
 obj-$(CONFIG_MCP4725) += mcp4725.o
 obj-$(CONFIG_MCP4922) += mcp4922.o
diff --git a/drivers/iio/dac/max5821.c b/drivers/iio/dac/max5821.c
new file mode 100644
index 0000000..6e91449
--- /dev/null
+++ b/drivers/iio/dac/max5821.c
@@ -0,0 +1,405 @@
+ /*
+  * iio/dac/max5821.c
+  * Copyright (C) 2014 Philippe Reynes
+  *
+  * This program is free software; you can redistribute it and/or modify
+  * it under the terms of the GNU General Public License version 2 as
+  * published by the Free Software Foundation.
+  */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/iio/iio.h>
+#include <linux/regulator/consumer.h>
+
+#define MAX5821_MAX_DAC_CHANNELS		2
+
+/* command bytes */
+#define MAX5821_LOAD_DAC_A_IN_REG_B		0x00
+#define MAX5821_LOAD_DAC_B_IN_REG_A		0x10
+#define MAX5821_EXTENDED_COMMAND_MODE		0xf0
+#define MAX5821_READ_DAC_A_COMMAND		0xf1
+#define MAX5821_READ_DAC_B_COMMAND		0xf2
+
+#define MAX5821_EXTENDED_POWER_UP		0x00
+#define MAX5821_EXTENDED_POWER_DOWN_MODE0	0x01
+#define MAX5821_EXTENDED_POWER_DOWN_MODE1	0x02
+#define MAX5821_EXTENDED_POWER_DOWN_MODE2	0x03
+#define MAX5821_EXTENDED_DAC_A			0x04
+#define MAX5821_EXTENDED_DAC_B			0x08
+
+enum max5821_device_ids {
+	ID_MAX5821,
+};
+
+struct max5821_data {
+	struct i2c_client	*client;
+	struct regulator	*vref_reg;
+	unsigned short		vref_mv;
+	bool			powerdown[MAX5821_MAX_DAC_CHANNELS];
+	u8			powerdown_mode[MAX5821_MAX_DAC_CHANNELS];
+	struct mutex		lock;
+};
+
+static const char * const max5821_powerdown_modes[] = {
+	"three_state",
+	"1kohm_to_gnd",
+	"100kohm_to_gnd",
+};
+
+enum {
+	MAX5821_THREE_STATE,
+	MAX5821_1KOHM_TO_GND,
+	MAX5821_100KOHM_TO_GND
+};
+
+static int max5821_get_powerdown_mode(struct iio_dev *indio_dev,
+				      const struct iio_chan_spec *chan)
+{
+	struct max5821_data *st = iio_priv(indio_dev);
+
+	return st->powerdown_mode[chan->channel];
+}
+
+static int max5821_set_powerdown_mode(struct iio_dev *indio_dev,
+				      const struct iio_chan_spec *chan,
+				      unsigned int mode)
+{
+	struct max5821_data *st = iio_priv(indio_dev);
+
+	st->powerdown_mode[chan->channel] = mode;
+
+	return 0;
+}
+
+static const struct iio_enum max5821_powerdown_mode_enum = {
+	.items = max5821_powerdown_modes,
+	.num_items = ARRAY_SIZE(max5821_powerdown_modes),
+	.get = max5821_get_powerdown_mode,
+	.set = max5821_set_powerdown_mode,
+};
+
+static ssize_t max5821_read_dac_powerdown(struct iio_dev *indio_dev,
+					  uintptr_t private,
+					  const struct iio_chan_spec *chan,
+					  char *buf)
+{
+	struct max5821_data *st = iio_priv(indio_dev);
+
+	return sprintf(buf, "%d\n", st->powerdown[chan->channel]);
+}
+
+static int max5821_sync_powerdown_mode(struct max5821_data *data,
+				       const struct iio_chan_spec *chan)
+{
+	u8 outbuf[2];
+
+	outbuf[0] = MAX5821_EXTENDED_COMMAND_MODE;
+
+	if (chan->channel == 0)
+		outbuf[1] = MAX5821_EXTENDED_DAC_A;
+	else
+		outbuf[1] = MAX5821_EXTENDED_DAC_B;
+
+	if (data->powerdown[chan->channel])
+		outbuf[1] |= data->powerdown_mode[chan->channel] + 1;
+	else
+		outbuf[1] |= MAX5821_EXTENDED_POWER_UP;
+
+	return i2c_master_send(data->client, outbuf, 2);
+}
+
+static ssize_t max5821_write_dac_powerdown(struct iio_dev *indio_dev,
+					   uintptr_t private,
+					   const struct iio_chan_spec *chan,
+					   const char *buf, size_t len)
+{
+	struct max5821_data *data = iio_priv(indio_dev);
+	bool powerdown;
+	int ret;
+
+	ret = strtobool(buf, &powerdown);
+	if (ret)
+		return ret;
+
+	data->powerdown[chan->channel] = powerdown;
+
+	ret = max5821_sync_powerdown_mode(data, chan);
+	if (ret < 0)
+		return ret;
+
+	return len;
+}
+
+static const struct iio_chan_spec_ext_info max5821_ext_info[] = {
+	{
+		.name = "powerdown",
+		.read = max5821_read_dac_powerdown,
+		.write = max5821_write_dac_powerdown,
+		.shared = IIO_SEPARATE,
+	},
+	IIO_ENUM("powerdown_mode", IIO_SEPARATE, &max5821_powerdown_mode_enum),
+	IIO_ENUM_AVAILABLE("powerdown_mode", &max5821_powerdown_mode_enum),
+	{ },
+};
+
+#define MAX5821_CHANNEL(chan) {					\
+	.type = IIO_VOLTAGE,					\
+	.indexed = 1,						\
+	.output = 1,						\
+	.channel = (chan),					\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
+	.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SCALE),	\
+	.ext_info = max5821_ext_info,				\
+}
+
+static const struct iio_chan_spec max5821_channels[] = {
+	MAX5821_CHANNEL(0),
+	MAX5821_CHANNEL(1)
+};
+
+static const u8 max5821_read_dac_command[] = {
+	MAX5821_READ_DAC_A_COMMAND,
+	MAX5821_READ_DAC_B_COMMAND
+};
+
+static const u8 max5821_load_dac_command[] = {
+	MAX5821_LOAD_DAC_A_IN_REG_B,
+	MAX5821_LOAD_DAC_B_IN_REG_A
+};
+
+static int max5821_get_value(struct iio_dev *indio_dev,
+			     int *val, int channel)
+{
+	struct max5821_data *data = iio_priv(indio_dev);
+	struct i2c_client *client = data->client;
+	u8 outbuf[1];
+	u8 inbuf[2];
+	int ret;
+
+	if ((channel != 0) && (channel != 1))
+		return -EINVAL;
+
+	outbuf[0] = max5821_read_dac_command[channel];
+
+	mutex_lock(&data->lock);
+
+	ret = i2c_master_send(client, outbuf, 1);
+	if (ret < 0) {
+		mutex_unlock(&data->lock);
+		return ret;
+	} else if (ret != 1) {
+		mutex_unlock(&data->lock);
+		return -EIO;
+	}
+
+	ret = i2c_master_recv(client, inbuf, 2);
+	if (ret < 0) {
+		mutex_unlock(&data->lock);
+		return ret;
+	} else if (ret != 2) {
+		mutex_unlock(&data->lock);
+		return -EIO;
+	}
+
+	mutex_unlock(&data->lock);
+
+	*val = ((inbuf[0] & 0x0f) << 6) | (inbuf[1] >> 2);
+
+	return IIO_VAL_INT;
+}
+
+static int max5821_set_value(struct iio_dev *indio_dev,
+			     int val, int channel)
+{
+	struct max5821_data *data = iio_priv(indio_dev);
+	struct i2c_client *client = data->client;
+	u8 outbuf[2];
+	int ret;
+
+	if ((val < 0) || (val > 1023))
+		return -EINVAL;
+
+	if ((channel != 0) && (channel != 1))
+		return -EINVAL;
+
+	outbuf[0] = max5821_load_dac_command[channel];
+	outbuf[0] |= val >> 6;
+	outbuf[1] = (val & 0x3f) << 2;
+
+	ret = i2c_master_send(client, outbuf, 2);
+	if (ret < 0)
+		return ret;
+	else if (ret != 2)
+		return -EIO;
+	else
+		return 0;
+}
+
+static int max5821_read_raw(struct iio_dev *indio_dev,
+			   struct iio_chan_spec const *chan,
+			   int *val, int *val2, long mask)
+{
+	struct max5821_data *data = iio_priv(indio_dev);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		return max5821_get_value(indio_dev, val, chan->channel);
+	case IIO_CHAN_INFO_SCALE:
+		*val = data->vref_mv;
+		*val2 = 10;
+		return IIO_VAL_FRACTIONAL_LOG2;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int max5821_write_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     int val, int val2, long mask)
+{
+	if (val2 != 0)
+		return -EINVAL;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		return max5821_set_value(indio_dev, val, chan->channel);
+	default:
+		return -EINVAL;
+	}
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int max5821_suspend(struct device *dev)
+{
+	u8 outbuf[2] = { MAX5821_EXTENDED_COMMAND_MODE,
+			 MAX5821_EXTENDED_DAC_A |
+			 MAX5821_EXTENDED_DAC_B |
+			 MAX5821_EXTENDED_POWER_DOWN_MODE2 };
+
+	return i2c_master_send(to_i2c_client(dev), outbuf, 2);
+}
+
+static int max5821_resume(struct device *dev)
+{
+	u8 outbuf[2] = { MAX5821_EXTENDED_COMMAND_MODE,
+			 MAX5821_EXTENDED_DAC_A |
+			 MAX5821_EXTENDED_DAC_B |
+			 MAX5821_EXTENDED_POWER_UP };
+
+	return i2c_master_send(to_i2c_client(dev), outbuf, 2);
+}
+
+static SIMPLE_DEV_PM_OPS(max5821_pm_ops, max5821_suspend, max5821_resume);
+#define MAX5821_PM_OPS (&max5821_pm_ops)
+#else
+#define MAX5821_PM_OPS NULL
+#endif /* CONFIG_PM_SLEEP */
+
+static const struct iio_info max5821_info = {
+	.read_raw = max5821_read_raw,
+	.write_raw = max5821_write_raw,
+	.driver_module = THIS_MODULE,
+};
+
+static int max5821_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct max5821_data *data;
+	struct iio_dev *indio_dev;
+	u32 tmp;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+	data = iio_priv(indio_dev);
+	i2c_set_clientdata(client, indio_dev);
+	data->client = client;
+	mutex_init(&data->lock);
+
+	/* max5821 start in powerdown mode 100Kohm to ground */
+	for (tmp = 0; tmp < MAX5821_MAX_DAC_CHANNELS; tmp++) {
+		data->powerdown[tmp] = true;
+		data->powerdown_mode[tmp] = MAX5821_100KOHM_TO_GND;
+	}
+
+	data->vref_reg = devm_regulator_get(&client->dev, "vref");
+	if (IS_ERR(data->vref_reg)) {
+		ret = PTR_ERR(data->vref_reg);
+		dev_err(&client->dev,
+			"Failed to get vref regulator: %d\n", ret);
+		goto error_free_reg;
+	}
+
+	ret = regulator_enable(data->vref_reg);
+	if (ret) {
+		dev_err(&client->dev,
+			"Failed to enable vref regulator: %d\n", ret);
+		goto error_free_reg;
+	}
+
+	ret = regulator_get_voltage(data->vref_reg);
+	if (ret < 0) {
+		dev_err(&client->dev,
+			"Failed to get voltage on regulator: %d\n", ret);
+		goto error_disable_reg;
+	}
+
+	data->vref_mv = ret / 1000;
+
+	indio_dev->name = id->name;
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->num_channels = ARRAY_SIZE(max5821_channels);
+	indio_dev->channels = max5821_channels;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->info = &max5821_info;
+
+	return iio_device_register(indio_dev);
+
+error_disable_reg:
+	regulator_disable(data->vref_reg);
+
+error_free_reg:
+
+	return ret;
+}
+
+static int max5821_remove(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+	struct max5821_data *data = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+	regulator_disable(data->vref_reg);
+
+	return 0;
+}
+
+static const struct i2c_device_id max5821_id[] = {
+	{ "max5821", ID_MAX5821 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, max5821_id);
+
+static const struct of_device_id max5821_of_match[] = {
+	{ .compatible = "maxim,max5821" },
+	{ }
+};
+
+static struct i2c_driver max5821_driver = {
+	.driver = {
+		.name	= "max5821",
+		.pm     = MAX5821_PM_OPS,
+		.owner	= THIS_MODULE,
+	},
+	.probe		= max5821_probe,
+	.remove		= max5821_remove,
+	.id_table	= max5821_id,
+};
+module_i2c_driver(max5821_driver);
+
+MODULE_AUTHOR("Philippe Reynes <tremyfr@yahoo.fr>");
+MODULE_DESCRIPTION("MAX5821 DAC");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
index ac2d69e..b3d0e94 100644
--- a/drivers/iio/gyro/Kconfig
+++ b/drivers/iio/gyro/Kconfig
@@ -50,6 +50,17 @@ config ADXRS450
 	  This driver can also be built as a module.  If so, the module
 	  will be called adxrs450.
 
+config BMG160
+	tristate "BOSCH BMG160 Gyro Sensor"
+	depends on I2C
+	select IIO_TRIGGERED_BUFFER if IIO_BUFFER
+	help
+	  Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor
+	  driver. This driver also supports BMI055 gyroscope.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called bmg160.
+
 config HID_SENSOR_GYRO_3D
 	depends on HID_SENSOR_HUB
 	select IIO_BUFFER
diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile
index 2f2752a..36a3877 100644
--- a/drivers/iio/gyro/Makefile
+++ b/drivers/iio/gyro/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_ADIS16130) += adis16130.o
 obj-$(CONFIG_ADIS16136) += adis16136.o
 obj-$(CONFIG_ADIS16260) += adis16260.o
 obj-$(CONFIG_ADXRS450) += adxrs450.o
+obj-$(CONFIG_BMG160) += bmg160.o
 
 obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o
 
diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160.c
new file mode 100644
index 0000000..1f967e0d
--- /dev/null
+++ b/drivers/iio/gyro/bmg160.c
@@ -0,0 +1,1228 @@
+/*
+ * BMG160 Gyro Sensor driver
+ * Copyright (c) 2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/acpi.h>
+#include <linux/gpio/consumer.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/events.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+
+#define BMG160_DRV_NAME		"bmg160"
+#define BMG160_IRQ_NAME		"bmg160_event"
+#define BMG160_GPIO_NAME		"gpio_int"
+
+#define BMG160_REG_CHIP_ID		0x00
+#define BMG160_CHIP_ID_VAL		0x0F
+
+#define BMG160_REG_PMU_LPW		0x11
+#define BMG160_MODE_NORMAL		0x00
+#define BMG160_MODE_DEEP_SUSPEND	0x20
+#define BMG160_MODE_SUSPEND		0x80
+
+#define BMG160_REG_RANGE		0x0F
+
+#define BMG160_RANGE_2000DPS		0
+#define BMG160_RANGE_1000DPS		1
+#define BMG160_RANGE_500DPS		2
+#define BMG160_RANGE_250DPS		3
+#define BMG160_RANGE_125DPS		4
+
+#define BMG160_REG_PMU_BW		0x10
+#define BMG160_NO_FILTER		0
+#define BMG160_DEF_BW			100
+
+#define BMG160_REG_INT_MAP_0		0x17
+#define BMG160_INT_MAP_0_BIT_ANY	BIT(1)
+
+#define BMG160_REG_INT_MAP_1		0x18
+#define BMG160_INT_MAP_1_BIT_NEW_DATA	BIT(0)
+
+#define BMG160_REG_INT_RST_LATCH	0x21
+#define BMG160_INT_MODE_LATCH_RESET	0x80
+#define BMG160_INT_MODE_LATCH_INT	0x0F
+#define BMG160_INT_MODE_NON_LATCH_INT	0x00
+
+#define BMG160_REG_INT_EN_0		0x15
+#define BMG160_DATA_ENABLE_INT		BIT(7)
+
+#define BMG160_REG_XOUT_L		0x02
+#define BMG160_AXIS_TO_REG(axis)	(BMG160_REG_XOUT_L + (axis * 2))
+
+#define BMG160_REG_SLOPE_THRES		0x1B
+#define BMG160_SLOPE_THRES_MASK	0x0F
+
+#define BMG160_REG_MOTION_INTR		0x1C
+#define BMG160_INT_MOTION_X		BIT(0)
+#define BMG160_INT_MOTION_Y		BIT(1)
+#define BMG160_INT_MOTION_Z		BIT(2)
+#define BMG160_ANY_DUR_MASK		0x30
+#define BMG160_ANY_DUR_SHIFT		4
+
+#define BMG160_REG_INT_STATUS_2	0x0B
+#define BMG160_ANY_MOTION_MASK		0x07
+
+#define BMG160_REG_TEMP		0x08
+#define BMG160_TEMP_CENTER_VAL		23
+
+#define BMG160_MAX_STARTUP_TIME_MS	80
+
+#define BMG160_AUTO_SUSPEND_DELAY_MS	2000
+
+struct bmg160_data {
+	struct i2c_client *client;
+	struct iio_trigger *dready_trig;
+	struct iio_trigger *motion_trig;
+	struct mutex mutex;
+	s16 buffer[8];
+	u8 bw_bits;
+	u32 dps_range;
+	int ev_enable_state;
+	int slope_thres;
+	bool dready_trigger_on;
+	bool motion_trigger_on;
+	int64_t timestamp;
+};
+
+enum bmg160_axis {
+	AXIS_X,
+	AXIS_Y,
+	AXIS_Z,
+};
+
+static const struct {
+	int val;
+	int bw_bits;
+} bmg160_samp_freq_table[] = { {100, 0x07},
+			       {200, 0x06},
+			       {400, 0x03},
+			       {1000, 0x02},
+			       {2000, 0x01} };
+
+static const struct {
+	int scale;
+	int dps_range;
+} bmg160_scale_table[] = { { 1065, BMG160_RANGE_2000DPS},
+			   { 532, BMG160_RANGE_1000DPS},
+			   { 266, BMG160_RANGE_500DPS},
+			   { 133, BMG160_RANGE_250DPS},
+			   { 66, BMG160_RANGE_125DPS} };
+
+static int bmg160_set_mode(struct bmg160_data *data, u8 mode)
+{
+	int ret;
+
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMG160_REG_PMU_LPW, mode);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_pmu_lpw\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int bmg160_convert_freq_to_bit(int val)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(bmg160_samp_freq_table); ++i) {
+		if (bmg160_samp_freq_table[i].val == val)
+			return bmg160_samp_freq_table[i].bw_bits;
+	}
+
+	return -EINVAL;
+}
+
+static int bmg160_set_bw(struct bmg160_data *data, int val)
+{
+	int ret;
+	int bw_bits;
+
+	bw_bits = bmg160_convert_freq_to_bit(val);
+	if (bw_bits < 0)
+		return bw_bits;
+
+	ret = i2c_smbus_write_byte_data(data->client, BMG160_REG_PMU_BW,
+					bw_bits);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_pmu_bw\n");
+		return ret;
+	}
+
+	data->bw_bits = bw_bits;
+
+	return 0;
+}
+
+static int bmg160_chip_init(struct bmg160_data *data)
+{
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_CHIP_ID);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_chip_id\n");
+		return ret;
+	}
+
+	dev_dbg(&data->client->dev, "Chip Id %x\n", ret);
+	if (ret != BMG160_CHIP_ID_VAL) {
+		dev_err(&data->client->dev, "invalid chip %x\n", ret);
+		return -ENODEV;
+	}
+
+	ret = bmg160_set_mode(data, BMG160_MODE_NORMAL);
+	if (ret < 0)
+		return ret;
+
+	/* Wait upto 500 ms to be ready after changing mode */
+	usleep_range(500, 1000);
+
+	/* Set Bandwidth */
+	ret = bmg160_set_bw(data, BMG160_DEF_BW);
+	if (ret < 0)
+		return ret;
+
+	/* Set Default Range */
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMG160_REG_RANGE,
+					BMG160_RANGE_500DPS);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_range\n");
+		return ret;
+	}
+	data->dps_range = BMG160_RANGE_500DPS;
+
+	ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_SLOPE_THRES);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_slope_thres\n");
+		return ret;
+	}
+	data->slope_thres = ret;
+
+	/* Set default interrupt mode */
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMG160_REG_INT_RST_LATCH,
+					BMG160_INT_MODE_LATCH_INT |
+					BMG160_INT_MODE_LATCH_RESET);
+	if (ret < 0) {
+		dev_err(&data->client->dev,
+			"Error writing reg_motion_intr\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int bmg160_set_power_state(struct bmg160_data *data, bool on)
+{
+#ifdef CONFIG_PM_RUNTIME
+	int ret;
+
+	if (on)
+		ret = pm_runtime_get_sync(&data->client->dev);
+	else {
+		pm_runtime_mark_last_busy(&data->client->dev);
+		ret = pm_runtime_put_autosuspend(&data->client->dev);
+	}
+
+	if (ret < 0) {
+		dev_err(&data->client->dev,
+			"Failed: bmg160_set_power_state for %d\n", on);
+		return ret;
+	}
+#endif
+
+	return 0;
+}
+
+static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data,
+					     bool status)
+{
+	int ret;
+
+	/* Enable/Disable INT_MAP0 mapping */
+	ret = i2c_smbus_read_byte_data(data->client,  BMG160_REG_INT_MAP_0);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_int_map0\n");
+		return ret;
+	}
+	if (status)
+		ret |= BMG160_INT_MAP_0_BIT_ANY;
+	else
+		ret &= ~BMG160_INT_MAP_0_BIT_ANY;
+
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMG160_REG_INT_MAP_0,
+					ret);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_int_map0\n");
+		return ret;
+	}
+
+	/* Enable/Disable slope interrupts */
+	if (status) {
+		/* Update slope thres */
+		ret = i2c_smbus_write_byte_data(data->client,
+						BMG160_REG_SLOPE_THRES,
+						data->slope_thres);
+		if (ret < 0) {
+			dev_err(&data->client->dev,
+				"Error writing reg_slope_thres\n");
+			return ret;
+		}
+
+		ret = i2c_smbus_write_byte_data(data->client,
+						BMG160_REG_MOTION_INTR,
+						BMG160_INT_MOTION_X |
+						BMG160_INT_MOTION_Y |
+						BMG160_INT_MOTION_Z);
+		if (ret < 0) {
+			dev_err(&data->client->dev,
+				"Error writing reg_motion_intr\n");
+			return ret;
+		}
+
+		/*
+		 * New data interrupt is always non-latched,
+		 * which will have higher priority, so no need
+		 * to set latched mode, we will be flooded anyway with INTR
+		 */
+		if (!data->dready_trigger_on) {
+			ret = i2c_smbus_write_byte_data(data->client,
+						BMG160_REG_INT_RST_LATCH,
+						BMG160_INT_MODE_LATCH_INT |
+						BMG160_INT_MODE_LATCH_RESET);
+			if (ret < 0) {
+				dev_err(&data->client->dev,
+					"Error writing reg_rst_latch\n");
+				return ret;
+			}
+		}
+
+		ret = i2c_smbus_write_byte_data(data->client,
+						BMG160_REG_INT_EN_0,
+						BMG160_DATA_ENABLE_INT);
+
+	} else
+		ret = i2c_smbus_write_byte_data(data->client,
+						BMG160_REG_INT_EN_0,
+						0);
+
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_int_en0\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int bmg160_setup_new_data_interrupt(struct bmg160_data *data,
+					   bool status)
+{
+	int ret;
+
+	/* Enable/Disable INT_MAP1 mapping */
+	ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_INT_MAP_1);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_int_map1\n");
+		return ret;
+	}
+
+	if (status)
+		ret |= BMG160_INT_MAP_1_BIT_NEW_DATA;
+	else
+		ret &= ~BMG160_INT_MAP_1_BIT_NEW_DATA;
+
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMG160_REG_INT_MAP_1,
+					ret);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_int_map1\n");
+		return ret;
+	}
+
+	if (status) {
+		ret = i2c_smbus_write_byte_data(data->client,
+						BMG160_REG_INT_RST_LATCH,
+						BMG160_INT_MODE_NON_LATCH_INT |
+						BMG160_INT_MODE_LATCH_RESET);
+		if (ret < 0) {
+			dev_err(&data->client->dev,
+				"Error writing reg_rst_latch\n");
+				return ret;
+		}
+
+		ret = i2c_smbus_write_byte_data(data->client,
+						BMG160_REG_INT_EN_0,
+						BMG160_DATA_ENABLE_INT);
+
+	} else {
+		/* Restore interrupt mode */
+		ret = i2c_smbus_write_byte_data(data->client,
+						BMG160_REG_INT_RST_LATCH,
+						BMG160_INT_MODE_LATCH_INT |
+						BMG160_INT_MODE_LATCH_RESET);
+		if (ret < 0) {
+			dev_err(&data->client->dev,
+				"Error writing reg_rst_latch\n");
+				return ret;
+		}
+
+		ret = i2c_smbus_write_byte_data(data->client,
+						BMG160_REG_INT_EN_0,
+						0);
+	}
+
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_int_en0\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int bmg160_get_bw(struct bmg160_data *data, int *val)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(bmg160_samp_freq_table); ++i) {
+		if (bmg160_samp_freq_table[i].bw_bits == data->bw_bits) {
+			*val = bmg160_samp_freq_table[i].val;
+			return IIO_VAL_INT;
+		}
+	}
+
+	return -EINVAL;
+}
+
+static int bmg160_set_scale(struct bmg160_data *data, int val)
+{
+	int ret, i;
+
+	for (i = 0; i < ARRAY_SIZE(bmg160_scale_table); ++i) {
+		if (bmg160_scale_table[i].scale == val) {
+			ret = i2c_smbus_write_byte_data(
+					data->client,
+					BMG160_REG_RANGE,
+					bmg160_scale_table[i].dps_range);
+			if (ret < 0) {
+				dev_err(&data->client->dev,
+					"Error writing reg_range\n");
+				return ret;
+			}
+			data->dps_range = bmg160_scale_table[i].dps_range;
+			return 0;
+		}
+	}
+
+	return -EINVAL;
+}
+
+static int bmg160_get_temp(struct bmg160_data *data, int *val)
+{
+	int ret;
+
+	mutex_lock(&data->mutex);
+	ret = bmg160_set_power_state(data, true);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+
+	ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_TEMP);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_temp\n");
+		bmg160_set_power_state(data, false);
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+
+	*val = sign_extend32(ret, 7);
+	ret = bmg160_set_power_state(data, false);
+	mutex_unlock(&data->mutex);
+	if (ret < 0)
+		return ret;
+
+	return IIO_VAL_INT;
+}
+
+static int bmg160_get_axis(struct bmg160_data *data, int axis, int *val)
+{
+	int ret;
+
+	mutex_lock(&data->mutex);
+	ret = bmg160_set_power_state(data, true);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+
+	ret = i2c_smbus_read_word_data(data->client, BMG160_AXIS_TO_REG(axis));
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading axis %d\n", axis);
+		bmg160_set_power_state(data, false);
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+
+	*val = sign_extend32(ret, 15);
+	ret = bmg160_set_power_state(data, false);
+	mutex_unlock(&data->mutex);
+	if (ret < 0)
+		return ret;
+
+	return IIO_VAL_INT;
+}
+
+static int bmg160_read_raw(struct iio_dev *indio_dev,
+			   struct iio_chan_spec const *chan,
+			   int *val, int *val2, long mask)
+{
+	struct bmg160_data *data = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		switch (chan->type) {
+		case IIO_TEMP:
+			return bmg160_get_temp(data, val);
+		case IIO_ANGL_VEL:
+			if (iio_buffer_enabled(indio_dev))
+				return -EBUSY;
+			else
+				return bmg160_get_axis(data, chan->scan_index,
+						       val);
+		default:
+			return -EINVAL;
+		}
+	case IIO_CHAN_INFO_OFFSET:
+		if (chan->type == IIO_TEMP) {
+			*val = BMG160_TEMP_CENTER_VAL;
+			return IIO_VAL_INT;
+		} else
+			return -EINVAL;
+	case IIO_CHAN_INFO_SCALE:
+		*val = 0;
+		switch (chan->type) {
+		case IIO_TEMP:
+			*val2 = 500000;
+			return IIO_VAL_INT_PLUS_MICRO;
+		case IIO_ANGL_VEL:
+		{
+			int i;
+
+			for (i = 0; i < ARRAY_SIZE(bmg160_scale_table); ++i) {
+				if (bmg160_scale_table[i].dps_range ==
+							data->dps_range) {
+					*val2 = bmg160_scale_table[i].scale;
+					return IIO_VAL_INT_PLUS_MICRO;
+				}
+			}
+			return -EINVAL;
+		}
+		default:
+			return -EINVAL;
+		}
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		*val2 = 0;
+		mutex_lock(&data->mutex);
+		ret = bmg160_get_bw(data, val);
+		mutex_unlock(&data->mutex);
+		return ret;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int bmg160_write_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan,
+			    int val, int val2, long mask)
+{
+	struct bmg160_data *data = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		mutex_lock(&data->mutex);
+		/*
+		 * Section 4.2 of spec
+		 * In suspend mode, the only supported operations are reading
+		 * registers as well as writing to the (0x14) softreset
+		 * register. Since we will be in suspend mode by default, change
+		 * mode to power on for other writes.
+		 */
+		ret = bmg160_set_power_state(data, true);
+		if (ret < 0) {
+			mutex_unlock(&data->mutex);
+			return ret;
+		}
+		ret = bmg160_set_bw(data, val);
+		if (ret < 0) {
+			bmg160_set_power_state(data, false);
+			mutex_unlock(&data->mutex);
+			return ret;
+		}
+		ret = bmg160_set_power_state(data, false);
+		mutex_unlock(&data->mutex);
+		return ret;
+	case IIO_CHAN_INFO_SCALE:
+		if (val)
+			return -EINVAL;
+
+		mutex_lock(&data->mutex);
+		/* Refer to comments above for the suspend mode ops */
+		ret = bmg160_set_power_state(data, true);
+		if (ret < 0) {
+			mutex_unlock(&data->mutex);
+			return ret;
+		}
+		ret = bmg160_set_scale(data, val2);
+		if (ret < 0) {
+			bmg160_set_power_state(data, false);
+			mutex_unlock(&data->mutex);
+			return ret;
+		}
+		ret = bmg160_set_power_state(data, false);
+		mutex_unlock(&data->mutex);
+		return ret;
+	default:
+		return -EINVAL;
+	}
+
+	return -EINVAL;
+}
+
+static int bmg160_read_event(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 bmg160_data *data = iio_priv(indio_dev);
+
+	*val2 = 0;
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		*val = data->slope_thres & BMG160_SLOPE_THRES_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return IIO_VAL_INT;
+}
+
+static int bmg160_write_event(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 bmg160_data *data = iio_priv(indio_dev);
+
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		if (data->ev_enable_state)
+			return -EBUSY;
+		data->slope_thres &= ~BMG160_SLOPE_THRES_MASK;
+		data->slope_thres |= (val & BMG160_SLOPE_THRES_MASK);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int bmg160_read_event_config(struct iio_dev *indio_dev,
+				    const struct iio_chan_spec *chan,
+				    enum iio_event_type type,
+				    enum iio_event_direction dir)
+{
+
+	struct bmg160_data *data = iio_priv(indio_dev);
+
+	return data->ev_enable_state;
+}
+
+static int bmg160_write_event_config(struct iio_dev *indio_dev,
+				     const struct iio_chan_spec *chan,
+				     enum iio_event_type type,
+				     enum iio_event_direction dir,
+				     int state)
+{
+	struct bmg160_data *data = iio_priv(indio_dev);
+	int ret;
+
+	if (state && data->ev_enable_state)
+		return 0;
+
+	mutex_lock(&data->mutex);
+
+	if (!state && data->motion_trigger_on) {
+		data->ev_enable_state = 0;
+		mutex_unlock(&data->mutex);
+		return 0;
+	}
+	/*
+	 * We will expect the enable and disable to do operation in
+	 * in reverse order. This will happen here anyway as our
+	 * resume operation uses sync mode runtime pm calls, the
+	 * suspend operation will be delayed by autosuspend delay
+	 * So the disable operation will still happen in reverse of
+	 * enable operation. When runtime pm is disabled the mode
+	 * is always on so sequence doesn't matter
+	 */
+	ret = bmg160_set_power_state(data, state);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+
+	ret =  bmg160_setup_any_motion_interrupt(data, state);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+
+	data->ev_enable_state = state;
+	mutex_unlock(&data->mutex);
+
+	return 0;
+}
+
+static int bmg160_validate_trigger(struct iio_dev *indio_dev,
+				   struct iio_trigger *trig)
+{
+	struct bmg160_data *data = iio_priv(indio_dev);
+
+	if (data->dready_trig != trig && data->motion_trig != trig)
+		return -EINVAL;
+
+	return 0;
+}
+
+static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("100 200 400 1000 2000");
+
+static IIO_CONST_ATTR(in_anglvel_scale_available,
+		      "0.001065 0.000532 0.000266 0.000133 0.000066");
+
+static struct attribute *bmg160_attributes[] = {
+	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
+	&iio_const_attr_in_anglvel_scale_available.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group bmg160_attrs_group = {
+	.attrs = bmg160_attributes,
+};
+
+static const struct iio_event_spec bmg160_event = {
+		.type = IIO_EV_TYPE_ROC,
+		.dir = IIO_EV_DIR_RISING | IIO_EV_DIR_FALLING,
+		.mask_shared_by_type = BIT(IIO_EV_INFO_VALUE) |
+				       BIT(IIO_EV_INFO_ENABLE)
+};
+
+#define BMG160_CHANNEL(_axis) {					\
+	.type = IIO_ANGL_VEL,						\
+	.modified = 1,							\
+	.channel2 = IIO_MOD_##_axis,					\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),			\
+	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |		\
+				    BIT(IIO_CHAN_INFO_SAMP_FREQ),	\
+	.scan_index = AXIS_##_axis,					\
+	.scan_type = {							\
+		.sign = 's',						\
+		.realbits = 16,					\
+		.storagebits = 16,					\
+	},								\
+	.event_spec = &bmg160_event,					\
+	.num_event_specs = 1						\
+}
+
+static const struct iio_chan_spec bmg160_channels[] = {
+	{
+		.type = IIO_TEMP,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+				      BIT(IIO_CHAN_INFO_SCALE) |
+				      BIT(IIO_CHAN_INFO_OFFSET),
+		.scan_index = -1,
+	},
+	BMG160_CHANNEL(X),
+	BMG160_CHANNEL(Y),
+	BMG160_CHANNEL(Z),
+	IIO_CHAN_SOFT_TIMESTAMP(3),
+};
+
+static const struct iio_info bmg160_info = {
+	.attrs			= &bmg160_attrs_group,
+	.read_raw		= bmg160_read_raw,
+	.write_raw		= bmg160_write_raw,
+	.read_event_value	= bmg160_read_event,
+	.write_event_value	= bmg160_write_event,
+	.write_event_config	= bmg160_write_event_config,
+	.read_event_config	= bmg160_read_event_config,
+	.validate_trigger	= bmg160_validate_trigger,
+	.driver_module		= THIS_MODULE,
+};
+
+static irqreturn_t bmg160_trigger_handler(int irq, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct bmg160_data *data = iio_priv(indio_dev);
+	int bit, ret, i = 0;
+
+	mutex_lock(&data->mutex);
+	for_each_set_bit(bit, indio_dev->buffer->scan_mask,
+			 indio_dev->masklength) {
+		ret = i2c_smbus_read_word_data(data->client,
+					       BMG160_AXIS_TO_REG(bit));
+		if (ret < 0) {
+			mutex_unlock(&data->mutex);
+			goto err;
+		}
+		data->buffer[i++] = ret;
+	}
+	mutex_unlock(&data->mutex);
+
+	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+					   data->timestamp);
+err:
+	iio_trigger_notify_done(indio_dev->trig);
+
+	return IRQ_HANDLED;
+}
+
+static int bmg160_trig_try_reen(struct iio_trigger *trig)
+{
+	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+	struct bmg160_data *data = iio_priv(indio_dev);
+	int ret;
+
+	/* new data interrupts don't need ack */
+	if (data->dready_trigger_on)
+		return 0;
+
+	/* Set latched mode interrupt and clear any latched interrupt */
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMG160_REG_INT_RST_LATCH,
+					BMG160_INT_MODE_LATCH_INT |
+					BMG160_INT_MODE_LATCH_RESET);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_rst_latch\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int bmg160_data_rdy_trigger_set_state(struct iio_trigger *trig,
+					     bool state)
+{
+	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+	struct bmg160_data *data = iio_priv(indio_dev);
+	int ret;
+
+	mutex_lock(&data->mutex);
+
+	if (!state && data->ev_enable_state && data->motion_trigger_on) {
+		data->motion_trigger_on = false;
+		mutex_unlock(&data->mutex);
+		return 0;
+	}
+
+	/*
+	 * Refer to comment in bmg160_write_event_config for
+	 * enable/disable operation order
+	 */
+	ret = bmg160_set_power_state(data, state);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+	if (data->motion_trig == trig)
+		ret =  bmg160_setup_any_motion_interrupt(data, state);
+	else
+		ret = bmg160_setup_new_data_interrupt(data, state);
+	if (ret < 0) {
+		mutex_unlock(&data->mutex);
+		return ret;
+	}
+	if (data->motion_trig == trig)
+		data->motion_trigger_on = state;
+	else
+		data->dready_trigger_on = state;
+
+	mutex_unlock(&data->mutex);
+
+	return 0;
+}
+
+static const struct iio_trigger_ops bmg160_trigger_ops = {
+	.set_trigger_state = bmg160_data_rdy_trigger_set_state,
+	.try_reenable = bmg160_trig_try_reen,
+	.owner = THIS_MODULE,
+};
+
+static irqreturn_t bmg160_event_handler(int irq, void *private)
+{
+	struct iio_dev *indio_dev = private;
+	struct bmg160_data *data = iio_priv(indio_dev);
+	int ret;
+	int dir;
+
+	ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_INT_STATUS_2);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_int_status2\n");
+		goto ack_intr_status;
+	}
+
+	if (ret & 0x08)
+		dir = IIO_EV_DIR_RISING;
+	else
+		dir = IIO_EV_DIR_FALLING;
+
+	if (ret & BMG160_ANY_MOTION_MASK)
+		iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ANGL_VEL,
+							0,
+							IIO_MOD_X_OR_Y_OR_Z,
+							IIO_EV_TYPE_ROC,
+							dir),
+							data->timestamp);
+
+ack_intr_status:
+	if (!data->dready_trigger_on) {
+		ret = i2c_smbus_write_byte_data(data->client,
+					BMG160_REG_INT_RST_LATCH,
+					BMG160_INT_MODE_LATCH_INT |
+					BMG160_INT_MODE_LATCH_RESET);
+		if (ret < 0)
+			dev_err(&data->client->dev,
+				"Error writing reg_rst_latch\n");
+	}
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t bmg160_data_rdy_trig_poll(int irq, void *private)
+{
+	struct iio_dev *indio_dev = private;
+	struct bmg160_data *data = iio_priv(indio_dev);
+
+	data->timestamp = iio_get_time_ns();
+
+	if (data->dready_trigger_on)
+		iio_trigger_poll(data->dready_trig);
+	else if (data->motion_trigger_on)
+		iio_trigger_poll(data->motion_trig);
+
+	if (data->ev_enable_state)
+		return IRQ_WAKE_THREAD;
+	else
+		return IRQ_HANDLED;
+
+}
+
+static int bmg160_gpio_probe(struct i2c_client *client,
+			     struct bmg160_data *data)
+
+{
+	struct device *dev;
+	struct gpio_desc *gpio;
+	int ret;
+
+	if (!client)
+		return -EINVAL;
+
+	dev = &client->dev;
+
+	/* data ready gpio interrupt pin */
+	gpio = devm_gpiod_get_index(dev, BMG160_GPIO_NAME, 0);
+	if (IS_ERR(gpio)) {
+		dev_err(dev, "acpi gpio get index failed\n");
+		return PTR_ERR(gpio);
+	}
+
+	ret = gpiod_direction_input(gpio);
+	if (ret)
+		return ret;
+
+	ret = gpiod_to_irq(gpio);
+
+	dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
+
+	return ret;
+}
+
+static const char *bmg160_match_acpi_device(struct device *dev)
+{
+	const struct acpi_device_id *id;
+
+	id = acpi_match_device(dev->driver->acpi_match_table, dev);
+	if (!id)
+		return NULL;
+
+	return dev_name(dev);
+}
+
+static int bmg160_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct bmg160_data *data;
+	struct iio_dev *indio_dev;
+	int ret;
+	const char *name = NULL;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	data = iio_priv(indio_dev);
+	i2c_set_clientdata(client, indio_dev);
+	data->client = client;
+
+	ret = bmg160_chip_init(data);
+	if (ret < 0)
+		return ret;
+
+	mutex_init(&data->mutex);
+
+	if (id)
+		name = id->name;
+
+	if (ACPI_HANDLE(&client->dev))
+		name = bmg160_match_acpi_device(&client->dev);
+
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->channels = bmg160_channels;
+	indio_dev->num_channels = ARRAY_SIZE(bmg160_channels);
+	indio_dev->name = name;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->info = &bmg160_info;
+
+	if (client->irq <= 0)
+		client->irq = bmg160_gpio_probe(client, data);
+
+	if (client->irq > 0) {
+		ret = devm_request_threaded_irq(&client->dev,
+						client->irq,
+						bmg160_data_rdy_trig_poll,
+						bmg160_event_handler,
+						IRQF_TRIGGER_RISING,
+						BMG160_IRQ_NAME,
+						indio_dev);
+		if (ret)
+			return ret;
+
+		data->dready_trig = devm_iio_trigger_alloc(&client->dev,
+							   "%s-dev%d",
+							   indio_dev->name,
+							   indio_dev->id);
+		if (!data->dready_trig)
+			return -ENOMEM;
+
+		data->motion_trig = devm_iio_trigger_alloc(&client->dev,
+							  "%s-any-motion-dev%d",
+							  indio_dev->name,
+							  indio_dev->id);
+		if (!data->motion_trig)
+			return -ENOMEM;
+
+		data->dready_trig->dev.parent = &client->dev;
+		data->dready_trig->ops = &bmg160_trigger_ops;
+		iio_trigger_set_drvdata(data->dready_trig, indio_dev);
+		ret = iio_trigger_register(data->dready_trig);
+		if (ret)
+			return ret;
+
+		data->motion_trig->dev.parent = &client->dev;
+		data->motion_trig->ops = &bmg160_trigger_ops;
+		iio_trigger_set_drvdata(data->motion_trig, indio_dev);
+		ret = iio_trigger_register(data->motion_trig);
+		if (ret) {
+			data->motion_trig = NULL;
+			goto err_trigger_unregister;
+		}
+
+		ret = iio_triggered_buffer_setup(indio_dev,
+						 NULL,
+						 bmg160_trigger_handler,
+						 NULL);
+		if (ret < 0) {
+			dev_err(&client->dev,
+				"iio triggered buffer setup failed\n");
+			goto err_trigger_unregister;
+		}
+	}
+
+	ret = iio_device_register(indio_dev);
+	if (ret < 0) {
+		dev_err(&client->dev, "unable to register iio device\n");
+		goto err_buffer_cleanup;
+	}
+
+	ret = pm_runtime_set_active(&client->dev);
+	if (ret)
+		goto err_iio_unregister;
+
+	pm_runtime_enable(&client->dev);
+	pm_runtime_set_autosuspend_delay(&client->dev,
+					 BMG160_AUTO_SUSPEND_DELAY_MS);
+	pm_runtime_use_autosuspend(&client->dev);
+
+	return 0;
+
+err_iio_unregister:
+	iio_device_unregister(indio_dev);
+err_buffer_cleanup:
+	if (data->dready_trig)
+		iio_triggered_buffer_cleanup(indio_dev);
+err_trigger_unregister:
+	if (data->dready_trig)
+		iio_trigger_unregister(data->dready_trig);
+	if (data->motion_trig)
+		iio_trigger_unregister(data->motion_trig);
+
+	return ret;
+}
+
+static int bmg160_remove(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+	struct bmg160_data *data = iio_priv(indio_dev);
+
+	pm_runtime_disable(&client->dev);
+	pm_runtime_set_suspended(&client->dev);
+	pm_runtime_put_noidle(&client->dev);
+
+	iio_device_unregister(indio_dev);
+
+	if (data->dready_trig) {
+		iio_triggered_buffer_cleanup(indio_dev);
+		iio_trigger_unregister(data->dready_trig);
+		iio_trigger_unregister(data->motion_trig);
+	}
+
+	mutex_lock(&data->mutex);
+	bmg160_set_mode(data, BMG160_MODE_DEEP_SUSPEND);
+	mutex_unlock(&data->mutex);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int bmg160_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct bmg160_data *data = iio_priv(indio_dev);
+
+	mutex_lock(&data->mutex);
+	bmg160_set_mode(data, BMG160_MODE_SUSPEND);
+	mutex_unlock(&data->mutex);
+
+	return 0;
+}
+
+static int bmg160_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct bmg160_data *data = iio_priv(indio_dev);
+
+	mutex_lock(&data->mutex);
+	if (data->dready_trigger_on || data->motion_trigger_on ||
+							data->ev_enable_state)
+		bmg160_set_mode(data, BMG160_MODE_NORMAL);
+	mutex_unlock(&data->mutex);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_PM_RUNTIME
+static int bmg160_runtime_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct bmg160_data *data = iio_priv(indio_dev);
+
+	return bmg160_set_mode(data, BMG160_MODE_SUSPEND);
+}
+
+static int bmg160_runtime_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct bmg160_data *data = iio_priv(indio_dev);
+	int ret;
+
+	ret = bmg160_set_mode(data, BMG160_MODE_NORMAL);
+	if (ret < 0)
+		return ret;
+
+	msleep_interruptible(BMG160_MAX_STARTUP_TIME_MS);
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops bmg160_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(bmg160_suspend, bmg160_resume)
+	SET_RUNTIME_PM_OPS(bmg160_runtime_suspend,
+			   bmg160_runtime_resume, NULL)
+};
+
+static const struct acpi_device_id bmg160_acpi_match[] = {
+	{"BMG0160", 0},
+	{"BMI055B", 0},
+	{},
+};
+
+MODULE_DEVICE_TABLE(acpi, bmg160_acpi_match);
+
+static const struct i2c_device_id bmg160_id[] = {
+	{"bmg160", 0},
+	{"bmi055_gyro", 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, bmg160_id);
+
+static struct i2c_driver bmg160_driver = {
+	.driver = {
+		.name	= BMG160_DRV_NAME,
+		.acpi_match_table = ACPI_PTR(bmg160_acpi_match),
+		.pm	= &bmg160_pm_ops,
+	},
+	.probe		= bmg160_probe,
+	.remove		= bmg160_remove,
+	.id_table	= bmg160_id,
+};
+module_i2c_driver(bmg160_driver);
+
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("BMG160 Gyro driver");
diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c
index fa034a3..a3ea1e8 100644
--- a/drivers/iio/gyro/hid-sensor-gyro-3d.c
+++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c
@@ -416,7 +416,6 @@ static struct platform_driver hid_gyro_3d_platform_driver = {
 	.id_table = hid_gyro_3d_ids,
 	.driver = {
 		.name	= KBUILD_MODNAME,
-		.owner	= THIS_MODULE,
 	},
 	.probe		= hid_gyro_3d_probe,
 	.remove		= hid_gyro_3d_remove,
diff --git a/drivers/iio/humidity/dht11.c b/drivers/iio/humidity/dht11.c
index d8771f5..623c145 100644
--- a/drivers/iio/humidity/dht11.c
+++ b/drivers/iio/humidity/dht11.c
@@ -281,7 +281,6 @@ static int dht11_probe(struct platform_device *pdev)
 static struct platform_driver dht11_driver = {
 	.driver = {
 		.name	= DRIVER_NAME,
-		.owner	= THIS_MODULE,
 		.of_match_table = dht11_dt_ids,
 	},
 	.probe  = dht11_probe,
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index 0c6517c..b75519d 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -673,8 +673,7 @@ static int inv_mpu_probe(struct i2c_client *client,
 
 	st = iio_priv(indio_dev);
 	st->client = client;
-	pdata = (struct inv_mpu6050_platform_data
-			*)dev_get_platdata(&client->dev);
+	pdata = dev_get_platdata(&client->dev);
 	if (pdata)
 		st->plat_data = *pdata;
 	/* power is turned on inside check chip type*/
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 0472ee2..f971f79 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -942,13 +942,34 @@ int iio_push_to_buffers(struct iio_dev *indio_dev, const void *data)
 }
 EXPORT_SYMBOL_GPL(iio_push_to_buffers);
 
+static int iio_buffer_add_demux(struct iio_buffer *buffer,
+	struct iio_demux_table **p, unsigned int in_loc, unsigned int out_loc,
+	unsigned int length)
+{
+
+	if (*p && (*p)->from + (*p)->length == in_loc &&
+		(*p)->to + (*p)->length == out_loc) {
+		(*p)->length += length;
+	} else {
+		*p = kmalloc(sizeof(**p), GFP_KERNEL);
+		if (*p == NULL)
+			return -ENOMEM;
+		(*p)->from = in_loc;
+		(*p)->to = out_loc;
+		(*p)->length = length;
+		list_add_tail(&(*p)->l, &buffer->demux_list);
+	}
+
+	return 0;
+}
+
 static int iio_buffer_update_demux(struct iio_dev *indio_dev,
 				   struct iio_buffer *buffer)
 {
 	const struct iio_chan_spec *ch;
 	int ret, in_ind = -1, out_ind, length;
 	unsigned in_loc = 0, out_loc = 0;
-	struct iio_demux_table *p;
+	struct iio_demux_table *p = NULL;
 
 	/* Clear out any old demux */
 	iio_buffer_demux_free(buffer);
@@ -979,14 +1000,7 @@ static int iio_buffer_update_demux(struct iio_dev *indio_dev,
 			else
 				length = ch->scan_type.storagebits / 8;
 			/* Make sure we are aligned */
-			in_loc += length;
-			if (in_loc % length)
-				in_loc += length - in_loc % length;
-		}
-		p = kmalloc(sizeof(*p), GFP_KERNEL);
-		if (p == NULL) {
-			ret = -ENOMEM;
-			goto error_clear_mux_table;
+			in_loc = roundup(in_loc, length) + length;
 		}
 		ch = iio_find_channel_from_si(indio_dev, in_ind);
 		if (ch->scan_type.repeat > 1)
@@ -994,24 +1008,16 @@ static int iio_buffer_update_demux(struct iio_dev *indio_dev,
 				ch->scan_type.repeat;
 		else
 			length = ch->scan_type.storagebits / 8;
-		if (out_loc % length)
-			out_loc += length - out_loc % length;
-		if (in_loc % length)
-			in_loc += length - in_loc % length;
-		p->from = in_loc;
-		p->to = out_loc;
-		p->length = length;
-		list_add_tail(&p->l, &buffer->demux_list);
+		out_loc = roundup(out_loc, length);
+		in_loc = roundup(in_loc, length);
+		ret = iio_buffer_add_demux(buffer, &p, in_loc, out_loc, length);
+		if (ret)
+			goto error_clear_mux_table;
 		out_loc += length;
 		in_loc += length;
 	}
 	/* Relies on scan_timestamp being last */
 	if (buffer->scan_timestamp) {
-		p = kmalloc(sizeof(*p), GFP_KERNEL);
-		if (p == NULL) {
-			ret = -ENOMEM;
-			goto error_clear_mux_table;
-		}
 		ch = iio_find_channel_from_si(indio_dev,
 			indio_dev->scan_index_timestamp);
 		if (ch->scan_type.repeat > 1)
@@ -1019,14 +1025,11 @@ static int iio_buffer_update_demux(struct iio_dev *indio_dev,
 				ch->scan_type.repeat;
 		else
 			length = ch->scan_type.storagebits / 8;
-		if (out_loc % length)
-			out_loc += length - out_loc % length;
-		if (in_loc % length)
-			in_loc += length - in_loc % length;
-		p->from = in_loc;
-		p->to = out_loc;
-		p->length = length;
-		list_add_tail(&p->l, &buffer->demux_list);
+		out_loc = roundup(out_loc, length);
+		in_loc = roundup(in_loc, length);
+		ret = iio_buffer_add_demux(buffer, &p, in_loc, out_loc, length);
+		if (ret)
+			goto error_clear_mux_table;
 		out_loc += length;
 		in_loc += length;
 	}
diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
index bf05ca5..5bea821 100644
--- a/drivers/iio/light/Kconfig
+++ b/drivers/iio/light/Kconfig
@@ -17,6 +17,16 @@ config ADJD_S311
 	 This driver can also be built as a module.  If so, the module
 	 will be called adjd_s311.
 
+config AL3320A
+	tristate "AL3320A ambient light sensor"
+	depends on I2C
+	help
+	 Say Y here if you want to build a driver for the Dyna Image AL3320A
+	 ambient light sensor.
+
+	 To compile this driver as a module, choose M here: the
+	 module will be called al3320a.
+
 config APDS9300
 	tristate "APDS9300 ambient light sensor"
 	depends on I2C
diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile
index 8b8c09f..47877a3 100644
--- a/drivers/iio/light/Makefile
+++ b/drivers/iio/light/Makefile
@@ -4,6 +4,7 @@
 
 # When adding new entries keep the list in alphabetical order
 obj-$(CONFIG_ADJD_S311)		+= adjd_s311.o
+obj-$(CONFIG_AL3320A)		+= al3320a.o
 obj-$(CONFIG_APDS9300)		+= apds9300.o
 obj-$(CONFIG_CM32181)		+= cm32181.o
 obj-$(CONFIG_CM36651)		+= cm36651.o
diff --git a/drivers/iio/light/al3320a.c b/drivers/iio/light/al3320a.c
new file mode 100644
index 0000000..6aac651
--- /dev/null
+++ b/drivers/iio/light/al3320a.c
@@ -0,0 +1,232 @@
+/*
+ * AL3320A - Dyna Image Ambient Light Sensor
+ *
+ * Copyright (c) 2014, Intel Corporation.
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License.  See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * IIO driver for AL3320A (7-bit I2C slave address 0x1C).
+ *
+ * TODO: interrupt support, thresholds
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+
+#define AL3320A_DRV_NAME "al3320a"
+
+#define AL3320A_REG_CONFIG		0x00
+#define AL3320A_REG_STATUS		0x01
+#define AL3320A_REG_INT			0x02
+#define AL3320A_REG_WAIT		0x06
+#define AL3320A_REG_CONFIG_RANGE	0x07
+#define AL3320A_REG_PERSIST		0x08
+#define AL3320A_REG_MEAN_TIME		0x09
+#define AL3320A_REG_ADUMMY		0x0A
+#define AL3320A_REG_DATA_LOW		0x22
+
+#define AL3320A_REG_LOW_THRESH_LOW	0x30
+#define AL3320A_REG_LOW_THRESH_HIGH	0x31
+#define AL3320A_REG_HIGH_THRESH_LOW	0x32
+#define AL3320A_REG_HIGH_THRESH_HIGH	0x33
+
+#define AL3320A_CONFIG_DISABLE		0x00
+#define AL3320A_CONFIG_ENABLE		0x01
+
+#define AL3320A_GAIN_SHIFT		1
+#define AL3320A_GAIN_MASK		(BIT(2) | BIT(1))
+
+/* chip params default values */
+#define AL3320A_DEFAULT_MEAN_TIME	4
+#define AL3320A_DEFAULT_WAIT_TIME	0 /* no waiting */
+
+#define AL3320A_SCALE_AVAILABLE "0.512 0.128 0.032 0.01"
+
+enum al3320a_range {
+	AL3320A_RANGE_1, /* 33.28 Klx */
+	AL3320A_RANGE_2, /* 8.32 Klx  */
+	AL3320A_RANGE_3, /* 2.08 Klx  */
+	AL3320A_RANGE_4  /* 0.65 Klx  */
+};
+
+static const int al3320a_scales[][2] = {
+	{0, 512000}, {0, 128000}, {0, 32000}, {0, 10000}
+};
+
+struct al3320a_data {
+	struct i2c_client *client;
+};
+
+static const struct iio_chan_spec al3320a_channels[] = {
+	{
+		.type	= IIO_LIGHT,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+				      BIT(IIO_CHAN_INFO_SCALE),
+	}
+};
+
+static IIO_CONST_ATTR(in_illuminance_scale_available, AL3320A_SCALE_AVAILABLE);
+
+static struct attribute *al3320a_attributes[] = {
+	&iio_const_attr_in_illuminance_scale_available.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group al3320a_attribute_group = {
+	.attrs = al3320a_attributes,
+};
+
+static int al3320a_init(struct al3320a_data *data)
+{
+	int ret;
+
+	/* power on */
+	ret = i2c_smbus_write_byte_data(data->client, AL3320A_REG_CONFIG,
+					AL3320A_CONFIG_ENABLE);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_smbus_write_byte_data(data->client, AL3320A_REG_CONFIG_RANGE,
+					AL3320A_RANGE_3 << AL3320A_GAIN_SHIFT);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_smbus_write_byte_data(data->client, AL3320A_REG_MEAN_TIME,
+					AL3320A_DEFAULT_MEAN_TIME);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_smbus_write_byte_data(data->client, AL3320A_REG_WAIT,
+					AL3320A_DEFAULT_WAIT_TIME);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int al3320a_read_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan, int *val,
+			    int *val2, long mask)
+{
+	struct al3320a_data *data = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		/*
+		 * ALS ADC value is stored in two adjacent registers:
+		 * - low byte of output is stored at AL3320A_REG_DATA_LOW
+		 * - high byte of output is stored at AL3320A_REG_DATA_LOW + 1
+		 */
+		ret = i2c_smbus_read_word_data(data->client,
+					       AL3320A_REG_DATA_LOW);
+		if (ret < 0)
+			return ret;
+		*val = ret;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		ret = i2c_smbus_read_byte_data(data->client,
+					       AL3320A_REG_CONFIG_RANGE);
+		if (ret < 0)
+			return ret;
+
+		ret = (ret & AL3320A_GAIN_MASK) >> AL3320A_GAIN_SHIFT;
+		*val = al3320a_scales[ret][0];
+		*val2 = al3320a_scales[ret][1];
+
+		return IIO_VAL_INT_PLUS_MICRO;
+	}
+	return -EINVAL;
+}
+
+static int al3320a_write_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan, int val,
+			     int val2, long mask)
+{
+	struct al3320a_data *data = iio_priv(indio_dev);
+	int i;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SCALE:
+		for (i = 0; i < ARRAY_SIZE(al3320a_scales); i++) {
+			if (val == al3320a_scales[i][0] &&
+			    val2 == al3320a_scales[i][1])
+				return i2c_smbus_write_byte_data(data->client,
+					AL3320A_REG_CONFIG_RANGE,
+					i << AL3320A_GAIN_SHIFT);
+		}
+		break;
+	}
+	return -EINVAL;
+}
+
+static const struct iio_info al3320a_info = {
+	.driver_module	= THIS_MODULE,
+	.read_raw	= al3320a_read_raw,
+	.write_raw	= al3320a_write_raw,
+	.attrs		= &al3320a_attribute_group,
+};
+
+static int al3320a_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct al3320a_data *data;
+	struct iio_dev *indio_dev;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	data = iio_priv(indio_dev);
+	i2c_set_clientdata(client, indio_dev);
+	data->client = client;
+
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->info = &al3320a_info;
+	indio_dev->name = AL3320A_DRV_NAME;
+	indio_dev->channels = al3320a_channels;
+	indio_dev->num_channels = ARRAY_SIZE(al3320a_channels);
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = al3320a_init(data);
+	if (ret < 0) {
+		dev_err(&client->dev, "al3320a chip init failed\n");
+		return ret;
+	}
+	return devm_iio_device_register(&client->dev, indio_dev);
+}
+
+static int al3320a_remove(struct i2c_client *client)
+{
+	return i2c_smbus_write_byte_data(client, AL3320A_REG_CONFIG,
+					 AL3320A_CONFIG_DISABLE);
+}
+
+static const struct i2c_device_id al3320a_id[] = {
+	{"al3320a", 0},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, al3320a_id);
+
+static struct i2c_driver al3320a_driver = {
+	.driver = {
+		.name = AL3320A_DRV_NAME,
+	},
+	.probe		= al3320a_probe,
+	.remove		= al3320a_remove,
+	.id_table	= al3320a_id,
+};
+
+module_i2c_driver(al3320a_driver);
+
+MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
+MODULE_DESCRIPTION("AL3320A Ambient Light Sensor driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
index 96e71e1..a5283d7 100644
--- a/drivers/iio/light/hid-sensor-als.c
+++ b/drivers/iio/light/hid-sensor-als.c
@@ -381,7 +381,6 @@ static struct platform_driver hid_als_platform_driver = {
 	.id_table = hid_als_ids,
 	.driver = {
 		.name	= KBUILD_MODNAME,
-		.owner	= THIS_MODULE,
 	},
 	.probe		= hid_als_probe,
 	.remove		= hid_als_remove,
diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c
index 412bae8..f5a5146 100644
--- a/drivers/iio/light/hid-sensor-prox.c
+++ b/drivers/iio/light/hid-sensor-prox.c
@@ -373,7 +373,6 @@ static struct platform_driver hid_prox_platform_driver = {
 	.id_table = hid_prox_ids,
 	.driver = {
 		.name	= KBUILD_MODNAME,
-		.owner	= THIS_MODULE,
 	},
 	.probe		= hid_prox_probe,
 	.remove		= hid_prox_remove,
diff --git a/drivers/iio/light/lm3533-als.c b/drivers/iio/light/lm3533-als.c
index c1aadc6..ae3c71b 100644
--- a/drivers/iio/light/lm3533-als.c
+++ b/drivers/iio/light/lm3533-als.c
@@ -915,7 +915,6 @@ static int lm3533_als_remove(struct platform_device *pdev)
 static struct platform_driver lm3533_als_driver = {
 	.driver	= {
 		.name	= "lm3533-als",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= lm3533_als_probe,
 	.remove		= lm3533_als_remove,
diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index a235792..bf5ef07 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -477,8 +477,8 @@ static const struct acpi_device_id ak_acpi_match[] = {
 };
 MODULE_DEVICE_TABLE(acpi, ak_acpi_match);
 
-static char *ak8975_match_acpi_device(struct device *dev,
-				enum asahi_compass_chipset *chipset)
+static const char *ak8975_match_acpi_device(struct device *dev,
+					    enum asahi_compass_chipset *chipset)
 {
 	const struct acpi_device_id *id;
 
@@ -487,7 +487,7 @@ static char *ak8975_match_acpi_device(struct device *dev,
 		return NULL;
 	*chipset = (int)id->driver_data;
 
-	return (char *)dev_name(dev);
+	return dev_name(dev);
 }
 
 static int ak8975_probe(struct i2c_client *client,
@@ -497,7 +497,7 @@ static int ak8975_probe(struct i2c_client *client,
 	struct iio_dev *indio_dev;
 	int eoc_gpio;
 	int err;
-	char *name = NULL;
+	const char *name = NULL;
 
 	/* Grab and set up the supplied GPIO. */
 	if (client->dev.platform_data)
@@ -539,7 +539,7 @@ static int ak8975_probe(struct i2c_client *client,
 	if (id) {
 		data->chipset =
 			(enum asahi_compass_chipset)(id->driver_data);
-		name = (char *) id->name;
+		name = id->name;
 	} else if (ACPI_HANDLE(&client->dev))
 		name = ak8975_match_acpi_device(&client->dev, &data->chipset);
 	else
diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
index 3ec777a..6294575 100644
--- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c
+++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
@@ -246,8 +246,7 @@ static const struct iio_info magn_3d_info = {
 };
 
 /* Function to push data to buffer */
-static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data,
-	int len)
+static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data)
 {
 	dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
 	iio_push_to_buffers(indio_dev, data);
@@ -263,9 +262,7 @@ static int magn_3d_proc_event(struct hid_sensor_hub_device *hsdev,
 
 	dev_dbg(&indio_dev->dev, "magn_3d_proc_event\n");
 	if (atomic_read(&magn_state->common_attributes.data_ready))
-		hid_sensor_push_data(indio_dev,
-				magn_state->iio_vals,
-				sizeof(magn_state->iio_vals));
+		hid_sensor_push_data(indio_dev, magn_state->iio_vals);
 
 	return 0;
 }
@@ -533,7 +530,6 @@ static struct platform_driver hid_magn_3d_platform_driver = {
 	.id_table = hid_magn_3d_ids,
 	.driver = {
 		.name	= KBUILD_MODNAME,
-		.owner	= THIS_MODULE,
 	},
 	.probe		= hid_magn_3d_probe,
 	.remove		= hid_magn_3d_remove,
diff --git a/drivers/iio/orientation/hid-sensor-incl-3d.c b/drivers/iio/orientation/hid-sensor-incl-3d.c
index 2478f6c..1ff181b 100644
--- a/drivers/iio/orientation/hid-sensor-incl-3d.c
+++ b/drivers/iio/orientation/hid-sensor-incl-3d.c
@@ -437,7 +437,6 @@ static struct platform_driver hid_incl_3d_platform_driver = {
 	.id_table = hid_incl_3d_ids,
 	.driver = {
 		.name	= KBUILD_MODNAME,
-		.owner	= THIS_MODULE,
 	},
 	.probe		= hid_incl_3d_probe,
 	.remove		= hid_incl_3d_remove,
diff --git a/drivers/iio/orientation/hid-sensor-rotation.c b/drivers/iio/orientation/hid-sensor-rotation.c
index dccf848..4afb6c7 100644
--- a/drivers/iio/orientation/hid-sensor-rotation.c
+++ b/drivers/iio/orientation/hid-sensor-rotation.c
@@ -334,7 +334,6 @@ static struct platform_driver hid_dev_rot_platform_driver = {
 	.id_table = hid_dev_rot_ids,
 	.driver = {
 		.name	= KBUILD_MODNAME,
-		.owner	= THIS_MODULE,
 	},
 	.probe		= hid_dev_rot_probe,
 	.remove		= hid_dev_rot_remove,
diff --git a/drivers/iio/pressure/hid-sensor-press.c b/drivers/iio/pressure/hid-sensor-press.c
index 2c0d2a4..7649286 100644
--- a/drivers/iio/pressure/hid-sensor-press.c
+++ b/drivers/iio/pressure/hid-sensor-press.c
@@ -382,7 +382,6 @@ static struct platform_driver hid_press_platform_driver = {
 	.id_table = hid_press_ids,
 	.driver = {
 		.name	= KBUILD_MODNAME,
-		.owner	= THIS_MODULE,
 	},
 	.probe		= hid_press_probe,
 	.remove		= hid_press_remove,
diff --git a/drivers/iio/trigger/iio-trig-interrupt.c b/drivers/iio/trigger/iio-trig-interrupt.c
index 7a149a7..572bc6f 100644
--- a/drivers/iio/trigger/iio-trig-interrupt.c
+++ b/drivers/iio/trigger/iio-trig-interrupt.c
@@ -109,7 +109,6 @@ static struct platform_driver iio_interrupt_trigger_driver = {
 	.remove = iio_interrupt_trigger_remove,
 	.driver = {
 		.name = "iio_interrupt_trigger",
-		.owner = THIS_MODULE,
 	},
 };