diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 1fa2533..6868b9d 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1104,6 +1104,14 @@ config SENSORS_ISL29020
 	  Range values can be configured using sysfs.
 	  Lux data is accessible via sysfs.
 
+config SENSORS_LIS331DL
+	tristate "STMicroeletronics LIS331DL three-axis digital accelerometer"
+	depends on I2C
+	help
+	  If you say yes here you get support for the Accelerometer  Devices
+	  Device can be configured using sysfs.
+	  x y Z data can be   accessible via sysfs.
+
 if ACPI
 
 comment "ACPI drivers"
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index 13d6832..ebeb2a2 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -60,6 +60,7 @@ obj-$(CONFIG_SENSORS_K10TEMP)	+= k10temp.o
 obj-$(CONFIG_SENSORS_LIS3LV02D) += lis3lv02d.o hp_accel.o
 obj-$(CONFIG_SENSORS_LIS3_SPI)	+= lis3lv02d.o lis3lv02d_spi.o
 obj-$(CONFIG_SENSORS_LIS3_I2C)	+= lis3lv02d.o lis3lv02d_i2c.o
+obj-$(CONFIG_SENSORS_LIS331DL)	+= lis331dl.o
 obj-$(CONFIG_SENSORS_LM63)	+= lm63.o
 obj-$(CONFIG_SENSORS_LM70)	+= lm70.o
 obj-$(CONFIG_SENSORS_LM73)	+= lm73.o
diff --git a/drivers/hwmon/lis331dl.c b/drivers/hwmon/lis331dl.c
new file mode 100644
index 0000000..34009eb
--- /dev/null
+++ b/drivers/hwmon/lis331dl.c
@@ -0,0 +1,286 @@
+/*
+ * lis331dl.c - ST LIS331DL  Accelerometer Driver
+ *
+ * Copyright (C) 2009 Intel Corp
+ *
+ *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * 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; version 2 of the License.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+#include <linux/input-polldev.h>
+
+
+#define POLL_INTERVAL	50
+
+struct lis331dl {
+	struct input_polled_dev *idev;
+	struct i2c_client *client;
+	struct mutex update_lock;
+};
+
+static ssize_t data_rate_show(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	int val;
+	int speed = 100;
+
+	val = i2c_smbus_read_byte_data(client, 0x20);
+	if (val & 0x80); /* 1= 400HZ 0= 100HZ */
+		speed = 400;
+	return sprintf(buf, "%d\n", speed);
+}
+
+static ssize_t power_mode_show(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	int val;
+
+	val = i2c_smbus_read_byte_data(client, 0x20) & 0x40;
+	if (val == 0x40)
+		val = 1;
+	return sprintf(buf, "%d\n", val);
+}
+
+static int read_with_retries(struct i2c_client *client, int r)
+{
+	int retries;
+	int ret;
+	
+	for (retries = 0; retries < 5; retries++) {
+		ret = i2c_smbus_read_byte_data(client, r);
+		if (ret != -ETIMEDOUT)
+			break;
+		msleep(10);
+	}
+	return ret;
+}
+
+static void lis331dl_poll(struct input_polled_dev *idev)
+{
+	struct input_dev *input = idev->input;
+	struct lis331dl *data = idev->private;
+	int x, y, z;
+	struct i2c_client *client = data->client;
+
+	x = read_with_retries(client, 0x29);
+	y = read_with_retries(client, 0x2B);
+	z = read_with_retries(client, 0x2D);
+
+	input_report_abs(input, ABS_X, x);
+	input_report_abs(input, ABS_Y, y);
+	input_report_abs(input, ABS_Z, z);
+	input_sync(input);
+}
+
+static ssize_t data_rate_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lis331dl *data = i2c_get_clientdata(client);
+	unsigned int ret_val;
+	unsigned long val;
+
+	if (strict_strtoul(buf, 10, &val))
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+
+	ret_val = i2c_smbus_read_byte_data(client, 0x20);
+	ret_val &= 0x7F;
+
+	switch (val) {
+	case 400:
+		ret_val |= 0x80;
+	case 100:
+		i2c_smbus_write_byte_data(client, 0x20, ret_val);
+		break;
+	default:		
+		mutex_unlock(&data->update_lock);
+		return -EINVAL;
+	}
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t power_mode_store(struct device *dev,
+		struct device_attribute *attr, const  char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lis331dl *data = i2c_get_clientdata(client);
+	unsigned int ret_val;
+	unsigned long val;
+
+	if (strict_strtoul(buf, 10, &val))
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+
+	ret_val = i2c_smbus_read_byte_data(client, 0x20);
+	ret_val &= 0xBF;
+	
+	switch(val) {
+	case 1:
+		ret_val |= 0x40;
+	case 0:
+		i2c_smbus_write_byte_data(client, 0x20, ret_val);
+		break;
+	default:
+		mutex_unlock(&data->update_lock);
+		return -EINVAL;
+	}
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(data_rate, S_IRUGO | S_IWUSR,
+	data_rate_show, data_rate_store);
+static DEVICE_ATTR(power_state, S_IRUGO | S_IWUSR,
+	power_mode_show, power_mode_store);
+
+static struct attribute *mid_att_accelero[] = {
+	&dev_attr_data_rate.attr,
+	&dev_attr_power_state.attr,
+	NULL
+};
+
+static struct attribute_group m_accelero_gr = {
+	.name = "lis331dl",
+	.attrs = mid_att_accelero
+};
+
+static void accel_set_default_config(struct i2c_client *client)
+{
+	i2c_smbus_write_byte_data(client, 0x20, 0x47);
+}
+
+static int  lis331dl_probe(struct i2c_client *client,
+					const struct i2c_device_id *id)
+{
+	int res;
+	struct lis331dl *data;
+	struct input_polled_dev *idev;
+	struct input_dev *input;
+
+	data = kzalloc(sizeof(struct lis331dl), GFP_KERNEL);
+	if (data == NULL) {
+		dev_err(&client->dev, "lis331dl: out of memory\n");
+		return -ENOMEM;
+	}
+	mutex_init(&data->update_lock);
+	i2c_set_clientdata(client, data);
+	data->client = client;
+
+	res = sysfs_create_group(&client->dev.kobj, &m_accelero_gr);
+	if (res) {
+		dev_err(&client->dev, "lis331dl: sysfs  group failed\n");
+		goto accelero_error1;
+	}
+	idev = input_allocate_polled_device();
+	if (!idev) {
+		res = -ENOMEM;
+		dev_err(&client->dev,
+			"lis331dl: unable to register input device\n");
+		goto accelero_error2;
+	}
+	idev->poll = lis331dl_poll;
+	idev->poll_interval = POLL_INTERVAL;
+
+	idev->private = data;
+	data->idev =  idev;
+
+	input = idev->input;
+	input->name = "lis331dl";
+	input->phys = "lis331dl/input0";
+	input->id.bustype = BUS_I2C;
+	input->dev.parent = &client->dev;
+	input->evbit[0] = BIT_MASK(EV_ABS);
+	input_set_abs_params(input, ABS_X, 0, 255, 2, 2);
+	input_set_abs_params(input, ABS_Y, 0, 255, 2, 2);
+	input_set_abs_params(input, ABS_Z, 0, 255, 2, 2);
+
+	res = input_register_polled_device(idev);
+	if (res == 0) {
+		dev_info(&client->dev,
+			"%s lis331dl:  Accelerometer chip found",
+							client->name);
+		return 0;
+	}
+	input_free_polled_device(idev);
+accelero_error2:
+	sysfs_remove_group(&client->dev.kobj, &m_accelero_gr);
+accelero_error1:
+	i2c_set_clientdata(client, NULL);
+	kfree(data);
+	return res;
+}
+
+static int lis331dl_remove(struct i2c_client *client)
+{
+	struct lis331dl *data = i2c_get_clientdata(client);
+
+	input_unregister_polled_device(data->idev);
+	input_free_polled_device(data->idev);
+	sysfs_remove_group(&client->dev.kobj, &m_accelero_gr);
+	kfree(data);
+	return 0;
+}
+
+static struct i2c_device_id lis331dl_id[] = {
+	{ "i2c_accel", 0 },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(i2c, lis331dl_id);
+
+static struct i2c_driver lis331dl_driver = {
+	.driver = {
+	.name = "lis331dl",
+	},
+	.probe = lis331dl_probe,
+	.remove = lis331dl_remove,
+	.id_table = lis331dl_id,
+};
+
+static int __init sensor_lis331dl_init(void)
+{
+	int res;
+
+	res = i2c_add_driver(&lis331dl_driver);
+	return res;
+}
+
+static void  __exit sensor_lis331dl_exit(void)
+{
+	i2c_del_driver(&lis331dl_driver);
+}
+
+module_init(sensor_lis331dl_init);
+module_exit(sensor_lis331dl_exit);
+
+MODULE_AUTHOR("Kalhan Trisal <kalhan.trisal@intel.com>, Alan Cox");
+MODULE_DESCRIPTION("STMicroelectronics LIS331DL Accelerometer Driver");
+MODULE_LICENSE("GPL v2");
