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>

diff --git a/drivers/iio/imu/st_lsm6dsx/Kconfig b/drivers/iio/imu/st_lsm6dsx/Kconfig
index 14f2eb6..ccc817e 100644 (file)
--- a/drivers/iio/imu/st_lsm6dsx/Kconfig
+++ b/drivers/iio/imu/st_lsm6dsx/Kconfig
@@ -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.

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
index a3cc7cd..edcd838 100644 (file)
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
@@ -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,
 };
 

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
index 1045e02..4994f92 100644 (file)
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
@@ -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.

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index 50d6491..aebbe0d 100644 (file)
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -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] = {

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c
index 41525dd..377c4e9 100644 (file)
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c
@@ -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);

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c
index 2c81358..fec5c6c 100644 (file)
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c
@@ -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);