iio:pressure: Add STMicroelectronics pressures driver
authorDenis CIOCCA <denis.ciocca@st.com>
Mon, 3 Jun 2013 14:58:00 +0000 (15:58 +0100)
committerJonathan Cameron <jic23@kernel.org>
Wed, 5 Jun 2013 17:41:23 +0000 (18:41 +0100)
This patch adds a generic pressure driver for STMicroelectronics
pressure sensors, currently it supports: LPS331AP.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
drivers/iio/Kconfig
drivers/iio/Makefile
drivers/iio/pressure/Kconfig [new file with mode: 0644]
drivers/iio/pressure/Makefile [new file with mode: 0644]
drivers/iio/pressure/st_pressure.h [new file with mode: 0644]
drivers/iio/pressure/st_pressure_buffer.c [new file with mode: 0644]
drivers/iio/pressure/st_pressure_core.c [new file with mode: 0644]
drivers/iio/pressure/st_pressure_i2c.c [new file with mode: 0644]
drivers/iio/pressure/st_pressure_spi.c [new file with mode: 0644]

index daa3dddbc77f060bf6aeb4732b2be19e48a6fe34..9af763a90d9330a42b7bebd7007b9d5fbe65b0d2 100644 (file)
@@ -73,5 +73,6 @@ source "drivers/iio/magnetometer/Kconfig"
 if IIO_TRIGGER
    source "drivers/iio/trigger/Kconfig"
 endif #IIO_TRIGGER
+source "drivers/iio/pressure/Kconfig"
 
 endif # IIO
index a349a9605d1fb7ab2d69e8c950ae542b518c9a46..7a3866c2d2a140813c4d7560a19703cf0b62d826 100644 (file)
@@ -22,3 +22,4 @@ obj-y += imu/
 obj-y += light/
 obj-y += magnetometer/
 obj-y += trigger/
+obj-y += pressure/
diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig
new file mode 100644 (file)
index 0000000..9427f01
--- /dev/null
@@ -0,0 +1,35 @@
+#
+# Pressure drivers
+#
+menu "Pressure Sensors"
+
+config IIO_ST_PRESS
+       tristate "STMicroelectronics pressures Driver"
+       depends on (I2C || SPI_MASTER) && SYSFS
+       select IIO_ST_SENSORS_CORE
+       select IIO_ST_PRESS_I2C if (I2C)
+       select IIO_ST_PRESS_SPI if (SPI_MASTER)
+       select IIO_TRIGGERED_BUFFER if (IIO_BUFFER)
+       help
+         Say yes here to build support for STMicroelectronics pressures:
+         LPS331AP.
+
+         This driver can also be built as a module. If so, will be created
+         these modules:
+         - st_pressure (core functions for the driver [it is mandatory]);
+         - st_pressure_i2c (necessary for the I2C devices [optional*]);
+         - st_pressure_spi (necessary for the SPI devices [optional*]);
+
+         (*) one of these is necessary to do something.
+
+config IIO_ST_PRESS_I2C
+       tristate
+       depends on IIO_ST_PRESS
+       depends on IIO_ST_SENSORS_I2C
+
+config IIO_ST_PRESS_SPI
+       tristate
+       depends on IIO_ST_PRESS
+       depends on IIO_ST_SENSORS_SPI
+
+endmenu
diff --git a/drivers/iio/pressure/Makefile b/drivers/iio/pressure/Makefile
new file mode 100644 (file)
index 0000000..d4bb33e
--- /dev/null
@@ -0,0 +1,10 @@
+#
+# Makefile for industrial I/O pressure drivers
+#
+
+obj-$(CONFIG_IIO_ST_PRESS) += st_pressure.o
+st_pressure-y := st_pressure_core.o
+st_pressure-$(CONFIG_IIO_BUFFER) += st_pressure_buffer.o
+
+obj-$(CONFIG_IIO_ST_PRESS_I2C) += st_pressure_i2c.o
+obj-$(CONFIG_IIO_ST_PRESS_SPI) += st_pressure_spi.o
diff --git a/drivers/iio/pressure/st_pressure.h b/drivers/iio/pressure/st_pressure.h
new file mode 100644 (file)
index 0000000..414e45a
--- /dev/null
@@ -0,0 +1,39 @@
+/*
+ * STMicroelectronics pressures driver
+ *
+ * Copyright 2013 STMicroelectronics Inc.
+ *
+ * Denis Ciocca <denis.ciocca@st.com>
+ * v. 1.0.0
+ * Licensed under the GPL-2.
+ */
+
+#ifndef ST_PRESS_H
+#define ST_PRESS_H
+
+#include <linux/types.h>
+#include <linux/iio/common/st_sensors.h>
+
+#define LPS331AP_PRESS_DEV_NAME                "lps331ap"
+
+int st_press_common_probe(struct iio_dev *indio_dev);
+void st_press_common_remove(struct iio_dev *indio_dev);
+
+#ifdef CONFIG_IIO_BUFFER
+int st_press_allocate_ring(struct iio_dev *indio_dev);
+void st_press_deallocate_ring(struct iio_dev *indio_dev);
+int st_press_trig_set_state(struct iio_trigger *trig, bool state);
+#define ST_PRESS_TRIGGER_SET_STATE (&st_press_trig_set_state)
+#else /* CONFIG_IIO_BUFFER */
+static inline int st_press_allocate_ring(struct iio_dev *indio_dev)
+{
+       return 0;
+}
+
+static inline void st_press_deallocate_ring(struct iio_dev *indio_dev)
+{
+}
+#define ST_PRESS_TRIGGER_SET_STATE NULL
+#endif /* CONFIG_IIO_BUFFER */
+
+#endif /* ST_PRESS_H */
diff --git a/drivers/iio/pressure/st_pressure_buffer.c b/drivers/iio/pressure/st_pressure_buffer.c
new file mode 100644 (file)
index 0000000..f877ef8
--- /dev/null
@@ -0,0 +1,105 @@
+/*
+ * STMicroelectronics pressures driver
+ *
+ * Copyright 2013 STMicroelectronics Inc.
+ *
+ * Denis Ciocca <denis.ciocca@st.com>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+
+#include <linux/iio/common/st_sensors.h>
+#include "st_pressure.h"
+
+int st_press_trig_set_state(struct iio_trigger *trig, bool state)
+{
+       struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+
+       return st_sensors_set_dataready_irq(indio_dev, state);
+}
+
+static int st_press_buffer_preenable(struct iio_dev *indio_dev)
+{
+       int err;
+
+       err = st_sensors_set_enable(indio_dev, true);
+       if (err < 0)
+               goto st_press_set_enable_error;
+
+       err = iio_sw_buffer_preenable(indio_dev);
+
+st_press_set_enable_error:
+       return err;
+}
+
+static int st_press_buffer_postenable(struct iio_dev *indio_dev)
+{
+       int err;
+       struct st_sensor_data *pdata = iio_priv(indio_dev);
+
+       pdata->buffer_data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
+       if (pdata->buffer_data == NULL) {
+               err = -ENOMEM;
+               goto allocate_memory_error;
+       }
+
+       err = iio_triggered_buffer_postenable(indio_dev);
+       if (err < 0)
+               goto st_press_buffer_postenable_error;
+
+       return err;
+
+st_press_buffer_postenable_error:
+       kfree(pdata->buffer_data);
+allocate_memory_error:
+       return err;
+}
+
+static int st_press_buffer_predisable(struct iio_dev *indio_dev)
+{
+       int err;
+       struct st_sensor_data *pdata = iio_priv(indio_dev);
+
+       err = iio_triggered_buffer_predisable(indio_dev);
+       if (err < 0)
+               goto st_press_buffer_predisable_error;
+
+       err = st_sensors_set_enable(indio_dev, false);
+
+st_press_buffer_predisable_error:
+       kfree(pdata->buffer_data);
+       return err;
+}
+
+static const struct iio_buffer_setup_ops st_press_buffer_setup_ops = {
+       .preenable = &st_press_buffer_preenable,
+       .postenable = &st_press_buffer_postenable,
+       .predisable = &st_press_buffer_predisable,
+};
+
+int st_press_allocate_ring(struct iio_dev *indio_dev)
+{
+       return iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
+               &st_sensors_trigger_handler, &st_press_buffer_setup_ops);
+}
+
+void st_press_deallocate_ring(struct iio_dev *indio_dev)
+{
+       iio_triggered_buffer_cleanup(indio_dev);
+}
+
+MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics pressures buffer");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
new file mode 100644 (file)
index 0000000..9c343b4
--- /dev/null
@@ -0,0 +1,272 @@
+/*
+ * STMicroelectronics pressures driver
+ *
+ * Copyright 2013 STMicroelectronics Inc.
+ *
+ * Denis Ciocca <denis.ciocca@st.com>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/mutex.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/buffer.h>
+#include <asm/unaligned.h>
+
+#include <linux/iio/common/st_sensors.h>
+#include "st_pressure.h"
+
+#define ST_PRESS_MBAR_TO_KPASCAL(x)            (x * 10)
+#define ST_PRESS_NUMBER_DATA_CHANNELS          1
+
+/* DEFAULT VALUE FOR SENSORS */
+#define ST_PRESS_DEFAULT_OUT_XL_ADDR           0x28
+#define ST_TEMP_DEFAULT_OUT_L_ADDR             0x2b
+
+/* FULLSCALE */
+#define ST_PRESS_FS_AVL_1260MB                 1260
+
+/* CUSTOM VALUES FOR SENSOR 1 */
+#define ST_PRESS_1_WAI_EXP                     0xbb
+#define ST_PRESS_1_ODR_ADDR                    0x20
+#define ST_PRESS_1_ODR_MASK                    0x70
+#define ST_PRESS_1_ODR_AVL_1HZ_VAL             0x01
+#define ST_PRESS_1_ODR_AVL_7HZ_VAL             0x05
+#define ST_PRESS_1_ODR_AVL_13HZ_VAL            0x06
+#define ST_PRESS_1_ODR_AVL_25HZ_VAL            0x07
+#define ST_PRESS_1_PW_ADDR                     0x20
+#define ST_PRESS_1_PW_MASK                     0x80
+#define ST_PRESS_1_FS_ADDR                     0x23
+#define ST_PRESS_1_FS_MASK                     0x30
+#define ST_PRESS_1_FS_AVL_1260_VAL             0x00
+#define ST_PRESS_1_FS_AVL_1260_GAIN            ST_PRESS_MBAR_TO_KPASCAL(244141)
+#define ST_PRESS_1_FS_AVL_TEMP_GAIN            2083000
+#define ST_PRESS_1_BDU_ADDR                    0x20
+#define ST_PRESS_1_BDU_MASK                    0x04
+#define ST_PRESS_1_DRDY_IRQ_ADDR               0x22
+#define ST_PRESS_1_DRDY_IRQ_MASK               0x04
+#define ST_PRESS_1_MULTIREAD_BIT               true
+#define ST_PRESS_1_TEMP_OFFSET                 42500
+
+static const struct iio_chan_spec st_press_channels[] = {
+       ST_SENSORS_LSM_CHANNELS(IIO_PRESSURE,
+                       BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+                       ST_SENSORS_SCAN_X, 0, IIO_NO_MOD, 'u', IIO_LE, 24, 24,
+                       ST_PRESS_DEFAULT_OUT_XL_ADDR),
+       ST_SENSORS_LSM_CHANNELS(IIO_TEMP,
+                       BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE) |
+                                               BIT(IIO_CHAN_INFO_OFFSET),
+                       -1, 0, IIO_NO_MOD, 's', IIO_LE, 16, 16,
+                       ST_TEMP_DEFAULT_OUT_L_ADDR),
+       IIO_CHAN_SOFT_TIMESTAMP(1)
+};
+
+static const struct st_sensors st_press_sensors[] = {
+       {
+               .wai = ST_PRESS_1_WAI_EXP,
+               .sensors_supported = {
+                       [0] = LPS331AP_PRESS_DEV_NAME,
+               },
+               .ch = (struct iio_chan_spec *)st_press_channels,
+               .odr = {
+                       .addr = ST_PRESS_1_ODR_ADDR,
+                       .mask = ST_PRESS_1_ODR_MASK,
+                       .odr_avl = {
+                               { 1, ST_PRESS_1_ODR_AVL_1HZ_VAL, },
+                               { 7, ST_PRESS_1_ODR_AVL_7HZ_VAL, },
+                               { 13, ST_PRESS_1_ODR_AVL_13HZ_VAL, },
+                               { 25, ST_PRESS_1_ODR_AVL_25HZ_VAL, },
+                       },
+               },
+               .pw = {
+                       .addr = ST_PRESS_1_PW_ADDR,
+                       .mask = ST_PRESS_1_PW_MASK,
+                       .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
+                       .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
+               },
+               .fs = {
+                       .addr = ST_PRESS_1_FS_ADDR,
+                       .mask = ST_PRESS_1_FS_MASK,
+                       .fs_avl = {
+                               [0] = {
+                                       .num = ST_PRESS_FS_AVL_1260MB,
+                                       .value = ST_PRESS_1_FS_AVL_1260_VAL,
+                                       .gain = ST_PRESS_1_FS_AVL_1260_GAIN,
+                                       .gain2 = ST_PRESS_1_FS_AVL_TEMP_GAIN,
+                               },
+                       },
+               },
+               .bdu = {
+                       .addr = ST_PRESS_1_BDU_ADDR,
+                       .mask = ST_PRESS_1_BDU_MASK,
+               },
+               .drdy_irq = {
+                       .addr = ST_PRESS_1_DRDY_IRQ_ADDR,
+                       .mask = ST_PRESS_1_DRDY_IRQ_MASK,
+               },
+               .multi_read_bit = ST_PRESS_1_MULTIREAD_BIT,
+               .bootime = 2,
+       },
+};
+
+static int st_press_read_raw(struct iio_dev *indio_dev,
+                       struct iio_chan_spec const *ch, int *val,
+                                                       int *val2, long mask)
+{
+       int err;
+       struct st_sensor_data *pdata = iio_priv(indio_dev);
+
+       switch (mask) {
+       case IIO_CHAN_INFO_RAW:
+               err = st_sensors_read_info_raw(indio_dev, ch, val);
+               if (err < 0)
+                       goto read_error;
+
+               return IIO_VAL_INT;
+       case IIO_CHAN_INFO_SCALE:
+               *val = 0;
+
+               switch (ch->type) {
+               case IIO_PRESSURE:
+                       *val2 = pdata->current_fullscale->gain;
+                       break;
+               case IIO_TEMP:
+                       *val2 = pdata->current_fullscale->gain2;
+                       break;
+               default:
+                       err = -EINVAL;
+                       goto read_error;
+               }
+
+               return IIO_VAL_INT_PLUS_NANO;
+       case IIO_CHAN_INFO_OFFSET:
+               switch (ch->type) {
+               case IIO_TEMP:
+                       *val = 425;
+                       *val2 = 10;
+                       break;
+               default:
+                       err = -EINVAL;
+                       goto read_error;
+               }
+
+               return IIO_VAL_FRACTIONAL;
+       default:
+               return -EINVAL;
+       }
+
+read_error:
+       return err;
+}
+
+static ST_SENSOR_DEV_ATTR_SAMP_FREQ();
+static ST_SENSORS_DEV_ATTR_SAMP_FREQ_AVAIL();
+
+static struct attribute *st_press_attributes[] = {
+       &iio_dev_attr_sampling_frequency_available.dev_attr.attr,
+       &iio_dev_attr_sampling_frequency.dev_attr.attr,
+       NULL,
+};
+
+static const struct attribute_group st_press_attribute_group = {
+       .attrs = st_press_attributes,
+};
+
+static const struct iio_info press_info = {
+       .driver_module = THIS_MODULE,
+       .attrs = &st_press_attribute_group,
+       .read_raw = &st_press_read_raw,
+};
+
+#ifdef CONFIG_IIO_TRIGGER
+static const struct iio_trigger_ops st_press_trigger_ops = {
+       .owner = THIS_MODULE,
+       .set_trigger_state = ST_PRESS_TRIGGER_SET_STATE,
+};
+#define ST_PRESS_TRIGGER_OPS (&st_press_trigger_ops)
+#else
+#define ST_PRESS_TRIGGER_OPS NULL
+#endif
+
+int st_press_common_probe(struct iio_dev *indio_dev)
+{
+       int err;
+       struct st_sensor_data *pdata = iio_priv(indio_dev);
+
+       indio_dev->modes = INDIO_DIRECT_MODE;
+       indio_dev->info = &press_info;
+
+       err = st_sensors_check_device_support(indio_dev,
+                               ARRAY_SIZE(st_press_sensors), st_press_sensors);
+       if (err < 0)
+               goto st_press_common_probe_error;
+
+       pdata->num_data_channels = ST_PRESS_NUMBER_DATA_CHANNELS;
+       pdata->multiread_bit = pdata->sensor->multi_read_bit;
+       indio_dev->channels = pdata->sensor->ch;
+       indio_dev->num_channels = ARRAY_SIZE(st_press_channels);
+
+       pdata->current_fullscale = (struct st_sensor_fullscale_avl *)
+                                               &pdata->sensor->fs.fs_avl[0];
+       pdata->odr = pdata->sensor->odr.odr_avl[0].hz;
+
+       err = st_sensors_init_sensor(indio_dev);
+       if (err < 0)
+               goto st_press_common_probe_error;
+
+       if (pdata->get_irq_data_ready(indio_dev) > 0) {
+               err = st_press_allocate_ring(indio_dev);
+               if (err < 0)
+                       goto st_press_common_probe_error;
+
+               err = st_sensors_allocate_trigger(indio_dev,
+                                                       ST_PRESS_TRIGGER_OPS);
+               if (err < 0)
+                       goto st_press_probe_trigger_error;
+       }
+
+       err = iio_device_register(indio_dev);
+       if (err)
+               goto st_press_device_register_error;
+
+       return err;
+
+st_press_device_register_error:
+       if (pdata->get_irq_data_ready(indio_dev) > 0)
+               st_sensors_deallocate_trigger(indio_dev);
+st_press_probe_trigger_error:
+       if (pdata->get_irq_data_ready(indio_dev) > 0)
+               st_press_deallocate_ring(indio_dev);
+st_press_common_probe_error:
+       return err;
+}
+EXPORT_SYMBOL(st_press_common_probe);
+
+void st_press_common_remove(struct iio_dev *indio_dev)
+{
+       struct st_sensor_data *pdata = iio_priv(indio_dev);
+
+       iio_device_unregister(indio_dev);
+       if (pdata->get_irq_data_ready(indio_dev) > 0) {
+               st_sensors_deallocate_trigger(indio_dev);
+               st_press_deallocate_ring(indio_dev);
+       }
+       iio_device_free(indio_dev);
+}
+EXPORT_SYMBOL(st_press_common_remove);
+
+MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics pressures driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c
new file mode 100644 (file)
index 0000000..7cebcc7
--- /dev/null
@@ -0,0 +1,77 @@
+/*
+ * STMicroelectronics pressures driver
+ *
+ * Copyright 2013 STMicroelectronics Inc.
+ *
+ * Denis Ciocca <denis.ciocca@st.com>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/iio/iio.h>
+
+#include <linux/iio/common/st_sensors.h>
+#include <linux/iio/common/st_sensors_i2c.h>
+#include "st_pressure.h"
+
+static int st_press_i2c_probe(struct i2c_client *client,
+                                               const struct i2c_device_id *id)
+{
+       struct iio_dev *indio_dev;
+       struct st_sensor_data *pdata;
+       int err;
+
+       indio_dev = iio_device_alloc(sizeof(*pdata));
+       if (indio_dev == NULL) {
+               err = -ENOMEM;
+               goto iio_device_alloc_error;
+       }
+
+       pdata = iio_priv(indio_dev);
+       pdata->dev = &client->dev;
+
+       st_sensors_i2c_configure(indio_dev, client, pdata);
+
+       err = st_press_common_probe(indio_dev);
+       if (err < 0)
+               goto st_press_common_probe_error;
+
+       return 0;
+
+st_press_common_probe_error:
+       iio_device_free(indio_dev);
+iio_device_alloc_error:
+       return err;
+}
+
+static int st_press_i2c_remove(struct i2c_client *client)
+{
+       st_press_common_remove(i2c_get_clientdata(client));
+
+       return 0;
+}
+
+static const struct i2c_device_id st_press_id_table[] = {
+       { LPS331AP_PRESS_DEV_NAME },
+       {},
+};
+MODULE_DEVICE_TABLE(i2c, st_press_id_table);
+
+static struct i2c_driver st_press_driver = {
+       .driver = {
+               .owner = THIS_MODULE,
+               .name = "st-press-i2c",
+       },
+       .probe = st_press_i2c_probe,
+       .remove = st_press_i2c_remove,
+       .id_table = st_press_id_table,
+};
+module_i2c_driver(st_press_driver);
+
+MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c
new file mode 100644 (file)
index 0000000..17a1490
--- /dev/null
@@ -0,0 +1,76 @@
+/*
+ * STMicroelectronics pressures driver
+ *
+ * Copyright 2013 STMicroelectronics Inc.
+ *
+ * Denis Ciocca <denis.ciocca@st.com>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/iio/iio.h>
+
+#include <linux/iio/common/st_sensors.h>
+#include <linux/iio/common/st_sensors_spi.h>
+#include "st_pressure.h"
+
+static int st_press_spi_probe(struct spi_device *spi)
+{
+       struct iio_dev *indio_dev;
+       struct st_sensor_data *pdata;
+       int err;
+
+       indio_dev = iio_device_alloc(sizeof(*pdata));
+       if (indio_dev == NULL) {
+               err = -ENOMEM;
+               goto iio_device_alloc_error;
+       }
+
+       pdata = iio_priv(indio_dev);
+       pdata->dev = &spi->dev;
+
+       st_sensors_spi_configure(indio_dev, spi, pdata);
+
+       err = st_press_common_probe(indio_dev);
+       if (err < 0)
+               goto st_press_common_probe_error;
+
+       return 0;
+
+st_press_common_probe_error:
+       iio_device_free(indio_dev);
+iio_device_alloc_error:
+       return err;
+}
+
+static int st_press_spi_remove(struct spi_device *spi)
+{
+       st_press_common_remove(spi_get_drvdata(spi));
+
+       return 0;
+}
+
+static const struct spi_device_id st_press_id_table[] = {
+       { LPS331AP_PRESS_DEV_NAME },
+       {},
+};
+MODULE_DEVICE_TABLE(spi, st_press_id_table);
+
+static struct spi_driver st_press_driver = {
+       .driver = {
+               .owner = THIS_MODULE,
+               .name = "st-press-spi",
+       },
+       .probe = st_press_spi_probe,
+       .remove = st_press_spi_remove,
+       .id_table = st_press_id_table,
+};
+module_spi_driver(st_press_driver);
+
+MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics pressures spi driver");
+MODULE_LICENSE("GPL v2");