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iio: imu: st_lsm6dsx: add support to ism330dlc 

Add support to STM ISM330DLC 6-axis (acc + gyro) Mems sensor
http://www.st.com/resource/en/datasheet/ism330dlc.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
hifive-unleashed-5.1
Lorenzo Bianconi 2018-03-30 22:33:50 +02:00 committed by Jonathan Cameron
parent be75eb86ac
commit 179c8d608c
6 changed files with 21 additions and 7 deletions
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3
drivers/iio/imu/st_lsm6dsx/Kconfig
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@ -8,7 +8,8 @@ config IIO_ST_LSM6DSX
select IIO_ST_LSM6DSX_SPI if (SPI_MASTER)
help
Say yes here to build support for STMicroelectronics LSM6DSx imu
sensor. Supported devices: lsm6ds3, lsm6ds3h, lsm6dsl, lsm6dsm
sensor. Supported devices: lsm6ds3, lsm6ds3h, lsm6dsl, lsm6dsm,
ism330dlc
To compile this driver as a module, choose M here: the module
will be called st_lsm6dsx.

2
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
View File

@ -18,12 +18,14 @@
#define ST_LSM6DS3H_DEV_NAME "lsm6ds3h"
#define ST_LSM6DSL_DEV_NAME "lsm6dsl"
#define ST_LSM6DSM_DEV_NAME "lsm6dsm"
#define ST_ISM330DLC_DEV_NAME "ism330dlc"
enum st_lsm6dsx_hw_id {
ST_LSM6DS3_ID,
ST_LSM6DS3H_ID,
ST_LSM6DSL_ID,
ST_LSM6DSM_ID,
ST_ISM330DLC_ID,
ST_LSM6DSX_MAX_ID,
};

10
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
View File

@ -1,10 +1,10 @@
/*
* STMicroelectronics st_lsm6dsx FIFO buffer library driver
*
* LSM6DS3/LSM6DS3H/LSM6DSL/LSM6DSM: The FIFO buffer can be configured
* to store data from gyroscope and accelerometer. Samples are queued
* without any tag according to a specific pattern based on 'FIFO data sets'
* (6 bytes each):
* LSM6DS3/LSM6DS3H/LSM6DSL/LSM6DSM/ISM330DLC: The FIFO buffer can be
* configured to store data from gyroscope and accelerometer. Samples are
* queued without any tag according to a specific pattern based on
* 'FIFO data sets' (6 bytes each):
* - 1st data set is reserved for gyroscope data
* - 2nd data set is reserved for accelerometer data
* The FIFO pattern changes depending on the ODRs and decimation factors
@ -276,7 +276,7 @@ static inline int st_lsm6dsx_read_block(struct st_lsm6dsx_hw *hw, u8 *data,
#define ST_LSM6DSX_IIO_BUFF_SIZE (ALIGN(ST_LSM6DSX_SAMPLE_SIZE, \
sizeof(s64)) + sizeof(s64))
/**
* st_lsm6dsx_read_fifo() - LSM6DS3-LSM6DS3H-LSM6DSL-LSM6DSM read FIFO routine
* st_lsm6dsx_read_fifo() - hw FIFO read routine
* @hw: Pointer to instance of struct st_lsm6dsx_hw.
*
* Read samples from the hw FIFO and push them to IIO buffers.

3
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
View File

@ -17,7 +17,7 @@
* - Gyroscope supported full-scale [dps]: +-125/+-245/+-500/+-1000/+-2000
* - FIFO size: 8KB
*
* - LSM6DS3H/LSM6DSL/LSM6DSM:
* - LSM6DS3H/LSM6DSL/LSM6DSM/ISM330DLC:
* - Accelerometer/Gyroscope supported ODR [Hz]: 13, 26, 52, 104, 208, 416
* - Accelerometer supported full-scale [g]: +-2/+-4/+-8/+-16
* - Gyroscope supported full-scale [dps]: +-125/+-245/+-500/+-1000/+-2000
@ -252,6 +252,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
.id = {
[0] = ST_LSM6DSL_ID,
[1] = ST_LSM6DSM_ID,
[2] = ST_ISM330DLC_ID,
},
.decimator = {
[ST_LSM6DSX_ID_ACC] = {

5
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c
View File

@ -57,6 +57,10 @@ static const struct of_device_id st_lsm6dsx_i2c_of_match[] = {
.compatible = "st,lsm6dsm",
.data = (void *)ST_LSM6DSM_ID,
},
{
.compatible = "st,ism330dlc",
.data = (void *)ST_ISM330DLC_ID,
},
{},
};
MODULE_DEVICE_TABLE(of, st_lsm6dsx_i2c_of_match);
@ -66,6 +70,7 @@ static const struct i2c_device_id st_lsm6dsx_i2c_id_table[] = {
{ ST_LSM6DS3H_DEV_NAME, ST_LSM6DS3H_ID },
{ ST_LSM6DSL_DEV_NAME, ST_LSM6DSL_ID },
{ ST_LSM6DSM_DEV_NAME, ST_LSM6DSM_ID },
{ ST_ISM330DLC_DEV_NAME, ST_ISM330DLC_ID },
{},
};
MODULE_DEVICE_TABLE(i2c, st_lsm6dsx_i2c_id_table);

5
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c
View File

@ -57,6 +57,10 @@ static const struct of_device_id st_lsm6dsx_spi_of_match[] = {
.compatible = "st,lsm6dsm",
.data = (void *)ST_LSM6DSM_ID,
},
{
.compatible = "st,ism330dlc",
.data = (void *)ST_ISM330DLC_ID,
},
{},
};
MODULE_DEVICE_TABLE(of, st_lsm6dsx_spi_of_match);
@ -66,6 +70,7 @@ static const struct spi_device_id st_lsm6dsx_spi_id_table[] = {
{ ST_LSM6DS3H_DEV_NAME, ST_LSM6DS3H_ID },
{ ST_LSM6DSL_DEV_NAME, ST_LSM6DSL_ID },
{ ST_LSM6DSM_DEV_NAME, ST_LSM6DSM_ID },
{ ST_ISM330DLC_DEV_NAME, ST_ISM330DLC_ID },
{},
};
MODULE_DEVICE_TABLE(spi, st_lsm6dsx_spi_id_table);