iio: Added ST-sensors platform data to select the DRDY interrupt pin
This patch add support to redirect the DRDY interrupt on INT1 or INT2
on accelerometer and pressure sensors.
Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h
index 37949b9..c387763 100644
--- a/drivers/iio/accel/st_accel.h
+++ b/drivers/iio/accel/st_accel.h
@@ -25,7 +25,16 @@
#define LSM303DLM_ACCEL_DEV_NAME "lsm303dlm_accel"
#define LSM330_ACCEL_DEV_NAME "lsm330_accel"
-int st_accel_common_probe(struct iio_dev *indio_dev);
+/**
+* struct st_sensors_platform_data - default accel platform data
+* @drdy_int_pin: default accel DRDY is available on INT1 pin.
+*/
+static const struct st_sensors_platform_data default_accel_pdata = {
+ .drdy_int_pin = 1,
+};
+
+int st_accel_common_probe(struct iio_dev *indio_dev,
+ struct st_sensors_platform_data *pdata);
void st_accel_common_remove(struct iio_dev *indio_dev);
#ifdef CONFIG_IIO_BUFFER
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 4aec1212..aef3c9b 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -65,7 +65,8 @@
#define ST_ACCEL_1_BDU_ADDR 0x23
#define ST_ACCEL_1_BDU_MASK 0x80
#define ST_ACCEL_1_DRDY_IRQ_ADDR 0x22
-#define ST_ACCEL_1_DRDY_IRQ_MASK 0x10
+#define ST_ACCEL_1_DRDY_IRQ_INT1_MASK 0x10
+#define ST_ACCEL_1_DRDY_IRQ_INT2_MASK 0x08
#define ST_ACCEL_1_MULTIREAD_BIT true
/* CUSTOM VALUES FOR SENSOR 2 */
@@ -89,7 +90,8 @@
#define ST_ACCEL_2_BDU_ADDR 0x23
#define ST_ACCEL_2_BDU_MASK 0x80
#define ST_ACCEL_2_DRDY_IRQ_ADDR 0x22
-#define ST_ACCEL_2_DRDY_IRQ_MASK 0x02
+#define ST_ACCEL_2_DRDY_IRQ_INT1_MASK 0x02
+#define ST_ACCEL_2_DRDY_IRQ_INT2_MASK 0x10
#define ST_ACCEL_2_MULTIREAD_BIT true
/* CUSTOM VALUES FOR SENSOR 3 */
@@ -121,7 +123,8 @@
#define ST_ACCEL_3_BDU_ADDR 0x20
#define ST_ACCEL_3_BDU_MASK 0x08
#define ST_ACCEL_3_DRDY_IRQ_ADDR 0x23
-#define ST_ACCEL_3_DRDY_IRQ_MASK 0x80
+#define ST_ACCEL_3_DRDY_IRQ_INT1_MASK 0x80
+#define ST_ACCEL_3_DRDY_IRQ_INT2_MASK 0x00
#define ST_ACCEL_3_IG1_EN_ADDR 0x23
#define ST_ACCEL_3_IG1_EN_MASK 0x08
#define ST_ACCEL_3_MULTIREAD_BIT false
@@ -224,7 +227,8 @@
},
.drdy_irq = {
.addr = ST_ACCEL_1_DRDY_IRQ_ADDR,
- .mask = ST_ACCEL_1_DRDY_IRQ_MASK,
+ .mask_int1 = ST_ACCEL_1_DRDY_IRQ_INT1_MASK,
+ .mask_int2 = ST_ACCEL_1_DRDY_IRQ_INT2_MASK,
},
.multi_read_bit = ST_ACCEL_1_MULTIREAD_BIT,
.bootime = 2,
@@ -285,7 +289,8 @@
},
.drdy_irq = {
.addr = ST_ACCEL_2_DRDY_IRQ_ADDR,
- .mask = ST_ACCEL_2_DRDY_IRQ_MASK,
+ .mask_int1 = ST_ACCEL_2_DRDY_IRQ_INT1_MASK,
+ .mask_int2 = ST_ACCEL_2_DRDY_IRQ_INT2_MASK,
},
.multi_read_bit = ST_ACCEL_2_MULTIREAD_BIT,
.bootime = 2,
@@ -358,7 +363,8 @@
},
.drdy_irq = {
.addr = ST_ACCEL_3_DRDY_IRQ_ADDR,
- .mask = ST_ACCEL_3_DRDY_IRQ_MASK,
+ .mask_int1 = ST_ACCEL_3_DRDY_IRQ_INT1_MASK,
+ .mask_int2 = ST_ACCEL_3_DRDY_IRQ_INT2_MASK,
.ig1 = {
.en_addr = ST_ACCEL_3_IG1_EN_ADDR,
.en_mask = ST_ACCEL_3_IG1_EN_MASK,
@@ -443,7 +449,8 @@
#define ST_ACCEL_TRIGGER_OPS NULL
#endif
-int st_accel_common_probe(struct iio_dev *indio_dev)
+int st_accel_common_probe(struct iio_dev *indio_dev,
+ struct st_sensors_platform_data *plat_data)
{
int err;
struct st_sensor_data *adata = iio_priv(indio_dev);
@@ -465,7 +472,11 @@
&adata->sensor->fs.fs_avl[0];
adata->odr = adata->sensor->odr.odr_avl[0].hz;
- err = st_sensors_init_sensor(indio_dev);
+ if (!plat_data)
+ plat_data =
+ (struct st_sensors_platform_data *)&default_accel_pdata;
+
+ err = st_sensors_init_sensor(indio_dev, plat_data);
if (err < 0)
goto st_accel_common_probe_error;
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index ffc9d09..58d164d 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -36,7 +36,7 @@
st_sensors_i2c_configure(indio_dev, client, adata);
- err = st_accel_common_probe(indio_dev);
+ err = st_accel_common_probe(indio_dev, client->dev.platform_data);
if (err < 0)
goto st_accel_common_probe_error;
diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
index 22b35bf..21ed929 100644
--- a/drivers/iio/accel/st_accel_spi.c
+++ b/drivers/iio/accel/st_accel_spi.c
@@ -35,7 +35,7 @@
st_sensors_spi_configure(indio_dev, spi, adata);
- err = st_accel_common_probe(indio_dev);
+ err = st_accel_common_probe(indio_dev, spi->dev.platform_data);
if (err < 0)
goto st_accel_common_probe_error;
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 865b178..965ee22 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -22,7 +22,7 @@
static inline u32 st_sensors_get_unaligned_le24(const u8 *p)
{
- return ((s32)((p[0] | p[1] << 8 | p[2] << 16) << 8) >> 8);
+ return (s32)((p[0] | p[1] << 8 | p[2] << 16) << 8) >> 8;
}
static int st_sensors_write_data_with_mask(struct iio_dev *indio_dev,
@@ -118,7 +118,7 @@
}
static int st_sensors_set_fullscale(struct iio_dev *indio_dev,
- unsigned int fs)
+ unsigned int fs)
{
int err, i = 0;
struct st_sensor_data *sdata = iio_priv(indio_dev);
@@ -198,13 +198,39 @@
}
EXPORT_SYMBOL(st_sensors_set_axis_enable);
-int st_sensors_init_sensor(struct iio_dev *indio_dev)
+int st_sensors_init_sensor(struct iio_dev *indio_dev,
+ struct st_sensors_platform_data *pdata)
{
int err;
struct st_sensor_data *sdata = iio_priv(indio_dev);
mutex_init(&sdata->tb.buf_lock);
+ switch (pdata->drdy_int_pin) {
+ case 1:
+ if (sdata->sensor->drdy_irq.mask_int1 == 0) {
+ dev_err(&indio_dev->dev,
+ "DRDY on INT1 not available.\n");
+ err = -EINVAL;
+ goto init_error;
+ }
+ sdata->drdy_int_pin = 1;
+ break;
+ case 2:
+ if (sdata->sensor->drdy_irq.mask_int2 == 0) {
+ dev_err(&indio_dev->dev,
+ "DRDY on INT2 not available.\n");
+ err = -EINVAL;
+ goto init_error;
+ }
+ sdata->drdy_int_pin = 2;
+ break;
+ default:
+ dev_err(&indio_dev->dev, "DRDY on pdata not valid.\n");
+ err = -EINVAL;
+ goto init_error;
+ }
+
err = st_sensors_set_enable(indio_dev, false);
if (err < 0)
goto init_error;
@@ -234,6 +260,7 @@
int st_sensors_set_dataready_irq(struct iio_dev *indio_dev, bool enable)
{
int err;
+ u8 drdy_mask;
struct st_sensor_data *sdata = iio_priv(indio_dev);
/* Enable/Disable the interrupt generator 1. */
@@ -245,10 +272,14 @@
goto st_accel_set_dataready_irq_error;
}
+ if (sdata->drdy_int_pin == 1)
+ drdy_mask = sdata->sensor->drdy_irq.mask_int1;
+ else
+ drdy_mask = sdata->sensor->drdy_irq.mask_int2;
+
/* Enable/Disable the interrupt generator for data ready. */
err = st_sensors_write_data_with_mask(indio_dev,
- sdata->sensor->drdy_irq.addr,
- sdata->sensor->drdy_irq.mask, (int)enable);
+ sdata->sensor->drdy_irq.addr, drdy_mask, (int)enable);
st_accel_set_dataready_irq_error:
return err;
diff --git a/drivers/iio/gyro/st_gyro.h b/drivers/iio/gyro/st_gyro.h
index 3ad9907..f8f2bf8 100644
--- a/drivers/iio/gyro/st_gyro.h
+++ b/drivers/iio/gyro/st_gyro.h
@@ -23,7 +23,16 @@
#define L3G4IS_GYRO_DEV_NAME "l3g4is_ui"
#define LSM330_GYRO_DEV_NAME "lsm330_gyro"
-int st_gyro_common_probe(struct iio_dev *indio_dev);
+/**
+ * struct st_sensors_platform_data - gyro platform data
+ * @drdy_int_pin: DRDY on gyros is available only on INT2 pin.
+ */
+static const struct st_sensors_platform_data gyro_pdata = {
+ .drdy_int_pin = 2,
+};
+
+int st_gyro_common_probe(struct iio_dev *indio_dev,
+ struct st_sensors_platform_data *pdata);
void st_gyro_common_remove(struct iio_dev *indio_dev);
#ifdef CONFIG_IIO_BUFFER
diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index f9ed348..85fa8d3 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -60,7 +60,7 @@
#define ST_GYRO_1_BDU_ADDR 0x23
#define ST_GYRO_1_BDU_MASK 0x80
#define ST_GYRO_1_DRDY_IRQ_ADDR 0x22
-#define ST_GYRO_1_DRDY_IRQ_MASK 0x08
+#define ST_GYRO_1_DRDY_IRQ_INT2_MASK 0x08
#define ST_GYRO_1_MULTIREAD_BIT true
/* CUSTOM VALUES FOR SENSOR 2 */
@@ -84,7 +84,7 @@
#define ST_GYRO_2_BDU_ADDR 0x23
#define ST_GYRO_2_BDU_MASK 0x80
#define ST_GYRO_2_DRDY_IRQ_ADDR 0x22
-#define ST_GYRO_2_DRDY_IRQ_MASK 0x08
+#define ST_GYRO_2_DRDY_IRQ_INT2_MASK 0x08
#define ST_GYRO_2_MULTIREAD_BIT true
static const struct iio_chan_spec st_gyro_16bit_channels[] = {
@@ -158,7 +158,7 @@
},
.drdy_irq = {
.addr = ST_GYRO_1_DRDY_IRQ_ADDR,
- .mask = ST_GYRO_1_DRDY_IRQ_MASK,
+ .mask_int2 = ST_GYRO_1_DRDY_IRQ_INT2_MASK,
},
.multi_read_bit = ST_GYRO_1_MULTIREAD_BIT,
.bootime = 2,
@@ -221,7 +221,7 @@
},
.drdy_irq = {
.addr = ST_GYRO_2_DRDY_IRQ_ADDR,
- .mask = ST_GYRO_2_DRDY_IRQ_MASK,
+ .mask_int2 = ST_GYRO_2_DRDY_IRQ_INT2_MASK,
},
.multi_read_bit = ST_GYRO_2_MULTIREAD_BIT,
.bootime = 2,
@@ -302,7 +302,8 @@
#define ST_GYRO_TRIGGER_OPS NULL
#endif
-int st_gyro_common_probe(struct iio_dev *indio_dev)
+int st_gyro_common_probe(struct iio_dev *indio_dev,
+ struct st_sensors_platform_data *pdata)
{
int err;
struct st_sensor_data *gdata = iio_priv(indio_dev);
@@ -324,7 +325,7 @@
&gdata->sensor->fs.fs_avl[0];
gdata->odr = gdata->sensor->odr.odr_avl[0].hz;
- err = st_sensors_init_sensor(indio_dev);
+ err = st_sensors_init_sensor(indio_dev, pdata);
if (err < 0)
goto st_gyro_common_probe_error;
diff --git a/drivers/iio/gyro/st_gyro_i2c.c b/drivers/iio/gyro/st_gyro_i2c.c
index 8a31050..c7a29a4 100644
--- a/drivers/iio/gyro/st_gyro_i2c.c
+++ b/drivers/iio/gyro/st_gyro_i2c.c
@@ -36,7 +36,8 @@
st_sensors_i2c_configure(indio_dev, client, gdata);
- err = st_gyro_common_probe(indio_dev);
+ err = st_gyro_common_probe(indio_dev,
+ (struct st_sensors_platform_data *)&gyro_pdata);
if (err < 0)
goto st_gyro_common_probe_error;
diff --git a/drivers/iio/gyro/st_gyro_spi.c b/drivers/iio/gyro/st_gyro_spi.c
index f354039..14b0762 100644
--- a/drivers/iio/gyro/st_gyro_spi.c
+++ b/drivers/iio/gyro/st_gyro_spi.c
@@ -35,7 +35,8 @@
st_sensors_spi_configure(indio_dev, spi, gdata);
- err = st_gyro_common_probe(indio_dev);
+ err = st_gyro_common_probe(indio_dev,
+ (struct st_sensors_platform_data *)&gyro_pdata);
if (err < 0)
goto st_gyro_common_probe_error;
diff --git a/drivers/iio/magnetometer/st_magn.h b/drivers/iio/magnetometer/st_magn.h
index 7e81d00..694e33e 100644
--- a/drivers/iio/magnetometer/st_magn.h
+++ b/drivers/iio/magnetometer/st_magn.h
@@ -18,7 +18,8 @@
#define LSM303DLM_MAGN_DEV_NAME "lsm303dlm_magn"
#define LIS3MDL_MAGN_DEV_NAME "lis3mdl"
-int st_magn_common_probe(struct iio_dev *indio_dev);
+int st_magn_common_probe(struct iio_dev *indio_dev,
+ struct st_sensors_platform_data *pdata);
void st_magn_common_remove(struct iio_dev *indio_dev);
#ifdef CONFIG_IIO_BUFFER
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
index ebfe8f1..7cd784f 100644
--- a/drivers/iio/magnetometer/st_magn_core.c
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -345,7 +345,8 @@
.write_raw = &st_magn_write_raw,
};
-int st_magn_common_probe(struct iio_dev *indio_dev)
+int st_magn_common_probe(struct iio_dev *indio_dev,
+ struct st_sensors_platform_data *pdata)
{
int err;
struct st_sensor_data *mdata = iio_priv(indio_dev);
@@ -367,7 +368,7 @@
&mdata->sensor->fs.fs_avl[0];
mdata->odr = mdata->sensor->odr.odr_avl[0].hz;
- err = st_sensors_init_sensor(indio_dev);
+ err = st_sensors_init_sensor(indio_dev, pdata);
if (err < 0)
goto st_magn_common_probe_error;
diff --git a/drivers/iio/magnetometer/st_magn_i2c.c b/drivers/iio/magnetometer/st_magn_i2c.c
index e6adc4a..1bed117 100644
--- a/drivers/iio/magnetometer/st_magn_i2c.c
+++ b/drivers/iio/magnetometer/st_magn_i2c.c
@@ -36,7 +36,7 @@
st_sensors_i2c_configure(indio_dev, client, mdata);
- err = st_magn_common_probe(indio_dev);
+ err = st_magn_common_probe(indio_dev, NULL);
if (err < 0)
goto st_magn_common_probe_error;
diff --git a/drivers/iio/magnetometer/st_magn_spi.c b/drivers/iio/magnetometer/st_magn_spi.c
index 51adb79..a2333a1 100644
--- a/drivers/iio/magnetometer/st_magn_spi.c
+++ b/drivers/iio/magnetometer/st_magn_spi.c
@@ -35,7 +35,7 @@
st_sensors_spi_configure(indio_dev, spi, mdata);
- err = st_magn_common_probe(indio_dev);
+ err = st_magn_common_probe(indio_dev, NULL);
if (err < 0)
goto st_magn_common_probe_error;
diff --git a/drivers/iio/pressure/st_pressure.h b/drivers/iio/pressure/st_pressure.h
index 414e45a..b0b6306 100644
--- a/drivers/iio/pressure/st_pressure.h
+++ b/drivers/iio/pressure/st_pressure.h
@@ -16,7 +16,16 @@
#define LPS331AP_PRESS_DEV_NAME "lps331ap"
-int st_press_common_probe(struct iio_dev *indio_dev);
+/**
+ * struct st_sensors_platform_data - default press platform data
+ * @drdy_int_pin: default press DRDY is available on INT1 pin.
+ */
+static const struct st_sensors_platform_data default_press_pdata = {
+ .drdy_int_pin = 1,
+};
+
+int st_press_common_probe(struct iio_dev *indio_dev,
+ struct st_sensors_platform_data *pdata);
void st_press_common_remove(struct iio_dev *indio_dev);
#ifdef CONFIG_IIO_BUFFER
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 3ffbc56..81e2d5b 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -58,7 +58,8 @@
#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_DRDY_IRQ_INT1_MASK 0x04
+#define ST_PRESS_1_DRDY_IRQ_INT2_MASK 0x20
#define ST_PRESS_1_MULTIREAD_BIT true
#define ST_PRESS_1_TEMP_OFFSET 42500
@@ -116,7 +117,8 @@
},
.drdy_irq = {
.addr = ST_PRESS_1_DRDY_IRQ_ADDR,
- .mask = ST_PRESS_1_DRDY_IRQ_MASK,
+ .mask_int1 = ST_PRESS_1_DRDY_IRQ_INT1_MASK,
+ .mask_int2 = ST_PRESS_1_DRDY_IRQ_INT2_MASK,
},
.multi_read_bit = ST_PRESS_1_MULTIREAD_BIT,
.bootime = 2,
@@ -202,7 +204,8 @@
#define ST_PRESS_TRIGGER_OPS NULL
#endif
-int st_press_common_probe(struct iio_dev *indio_dev)
+int st_press_common_probe(struct iio_dev *indio_dev,
+ struct st_sensors_platform_data *plat_data)
{
int err;
struct st_sensor_data *pdata = iio_priv(indio_dev);
@@ -224,7 +227,11 @@
&pdata->sensor->fs.fs_avl[0];
pdata->odr = pdata->sensor->odr.odr_avl[0].hz;
- err = st_sensors_init_sensor(indio_dev);
+ if (!plat_data)
+ plat_data =
+ (struct st_sensors_platform_data *)&default_press_pdata;
+
+ err = st_sensors_init_sensor(indio_dev, plat_data);
if (err < 0)
goto st_press_common_probe_error;
diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c
index 7cebcc7..3065993 100644
--- a/drivers/iio/pressure/st_pressure_i2c.c
+++ b/drivers/iio/pressure/st_pressure_i2c.c
@@ -36,7 +36,7 @@
st_sensors_i2c_configure(indio_dev, client, pdata);
- err = st_press_common_probe(indio_dev);
+ err = st_press_common_probe(indio_dev, client->dev.platform_data);
if (err < 0)
goto st_press_common_probe_error;
diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c
index 17a1490..b2aded6 100644
--- a/drivers/iio/pressure/st_pressure_spi.c
+++ b/drivers/iio/pressure/st_pressure_spi.c
@@ -35,7 +35,7 @@
st_sensors_spi_configure(indio_dev, spi, pdata);
- err = st_press_common_probe(indio_dev);
+ err = st_press_common_probe(indio_dev, spi->dev.platform_data);
if (err < 0)
goto st_press_common_probe_error;
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index 72b2694..e51f654 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -17,6 +17,8 @@
#include <linux/iio/trigger.h>
#include <linux/bitops.h>
+#include <linux/platform_data/st_sensors_pdata.h>
+
#define ST_SENSORS_TX_MAX_LENGTH 2
#define ST_SENSORS_RX_MAX_LENGTH 6
@@ -118,14 +120,16 @@
/**
* struct st_sensor_data_ready_irq - ST sensor device data-ready interrupt
* @addr: address of the register.
- * @mask: mask to write the on/off value.
+ * @mask_int1: mask to enable/disable IRQ on INT1 pin.
+ * @mask_int2: mask to enable/disable IRQ on INT2 pin.
* struct ig1 - represents the Interrupt Generator 1 of sensors.
* @en_addr: address of the enable ig1 register.
* @en_mask: mask to write the on/off value for enable.
*/
struct st_sensor_data_ready_irq {
u8 addr;
- u8 mask;
+ u8 mask_int1;
+ u8 mask_int2;
struct {
u8 en_addr;
u8 en_mask;
@@ -201,6 +205,7 @@
* @buffer_data: Data used by buffer part.
* @odr: Output data rate of the sensor [Hz].
* num_data_channels: Number of data channels used in buffer.
+ * @drdy_int_pin: Redirect DRDY on pin 1 (1) or pin 2 (2).
* @get_irq_data_ready: Function to get the IRQ used for data ready signal.
* @tf: Transfer function structure used by I/O operations.
* @tb: Transfer buffers and mutex used by I/O operations.
@@ -219,6 +224,8 @@
unsigned int odr;
unsigned int num_data_channels;
+ u8 drdy_int_pin;
+
unsigned int (*get_irq_data_ready) (struct iio_dev *indio_dev);
const struct st_sensor_transfer_function *tf;
@@ -249,7 +256,8 @@
}
#endif
-int st_sensors_init_sensor(struct iio_dev *indio_dev);
+int st_sensors_init_sensor(struct iio_dev *indio_dev,
+ struct st_sensors_platform_data *pdata);
int st_sensors_set_enable(struct iio_dev *indio_dev, bool enable);
diff --git a/include/linux/platform_data/st_sensors_pdata.h b/include/linux/platform_data/st_sensors_pdata.h
new file mode 100644
index 0000000..7538391
--- /dev/null
+++ b/include/linux/platform_data/st_sensors_pdata.h
@@ -0,0 +1,24 @@
+/*
+ * STMicroelectronics sensors platform-data driver
+ *
+ * Copyright 2013 STMicroelectronics Inc.
+ *
+ * Denis Ciocca <denis.ciocca@st.com>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#ifndef ST_SENSORS_PDATA_H
+#define ST_SENSORS_PDATA_H
+
+/**
+ * struct st_sensors_platform_data - Platform data for the ST sensors
+ * @drdy_int_pin: Redirect DRDY on pin 1 (1) or pin 2 (2).
+ * Available only for accelerometer and pressure sensors.
+ * Accelerometer DRDY on LSM330 available only on pin 1 (see datasheet).
+ */
+struct st_sensors_platform_data {
+ u8 drdy_int_pin;
+};
+
+#endif /* ST_SENSORS_PDATA_H */