iio:accel: Add STMicroelectronics accelerometers driver

This patch adds a generic accelerometer driver for STMicroelectronics
accelerometers, currently it supports:
LSM303DLH, LSM303DLHC, LIS3DH, LSM330D, LSM330DL, LSM330DLC,
LIS331DLH, LSM303DL, LSM303DLM, LSM330.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

1 files changed, 31 insertions, 0 deletions

diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
index d6003531bd63..bb594963f91e 100644
--- a/drivers/iio/accel/Kconfig
+++ b/drivers/iio/accel/Kconfig
@@ -21,4 +21,35 @@ config KXSD9
           Say yes here to build support for the Kionix KXSD9 accelerometer.
           Currently this only supports the device via an SPI interface.
 
+config IIO_ST_ACCEL_3AXIS
+        tristate "STMicroelectronics accelerometers 3-Axis Driver"
+        depends on (I2C || SPI_MASTER) && SYSFS
+        select IIO_ST_SENSORS_CORE
+        select IIO_ST_ACCEL_I2C_3AXIS if (I2C)
+        select IIO_ST_ACCEL_SPI_3AXIS if (SPI_MASTER)
+        select IIO_TRIGGERED_BUFFER if (IIO_BUFFER)
+        select IIO_ST_ACCEL_BUFFER if (IIO_TRIGGERED_BUFFER)
+        help
+          Say yes here to build support for STMicroelectronics accelerometers:
+          LSM303DLH, LSM303DLHC, LIS3DH, LSM330D, LSM330DL, LSM330DLC,
+          LIS331DLH, LSM303DL, LSM303DLM, LSM330.
+
+          This driver can also be built as a module. If so, will be created
+          these modules:
+          - st_accel (core functions for the driver [it is mandatory]);
+          - st_accel_i2c (necessary for the I2C devices [optional*]);
+          - st_accel_spi (necessary for the SPI devices [optional*]);
+
+          (*) one of these is necessary to do something.
+
+config IIO_ST_ACCEL_I2C_3AXIS
+        tristate
+        depends on IIO_ST_ACCEL_3AXIS
+        depends on IIO_ST_SENSORS_I2C
+
+config IIO_ST_ACCEL_SPI_3AXIS
+        tristate
+        depends on IIO_ST_ACCEL_3AXIS
+        depends on IIO_ST_SENSORS_SPI
+
 endmenu