iio: imu: st_lsm6dsx: add support to LSM6DSRX

Add support to STM LSM6DSRX 6-axis (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/lsm6dsrx.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/imu/st_lsm6dsx/Kconfig

@@ -12,7 +12,8 @@ config IIO_ST_LSM6DSX
 	  Say yes here to build support for STMicroelectronics LSM6DSx imu
 	  sensor. Supported devices: lsm6ds3, lsm6ds3h, lsm6dsl, lsm6dsm,
 	  ism330dlc, lsm6dso, lsm6dsox, asm330lhh, lsm6dsr, lsm6ds3tr-c,
-	  ism330dhcx, lsm6ds0 and the accelerometer/gyroscope of lsm9ds1.
+	  ism330dhcx, lsm6dsrx, lsm6ds0 and the accelerometer/gyroscope
+	  of lsm9ds1.
 
 	  To compile this driver as a module, choose M here: the module
 	  will be called st_lsm6dsx.

drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h

@@ -27,6 +27,7 @@
 #define ST_ISM330DHCX_DEV_NAME	"ism330dhcx"
 #define ST_LSM9DS1_DEV_NAME	"lsm9ds1-imu"
 #define ST_LSM6DS0_DEV_NAME	"lsm6ds0"
+#define ST_LSM6DSRX_DEV_NAME	"lsm6dsrx"
 
 enum st_lsm6dsx_hw_id {
 	ST_LSM6DS3_ID,
@@ -42,6 +43,7 @@ enum st_lsm6dsx_hw_id {
 	ST_ISM330DHCX_ID,
 	ST_LSM9DS1_ID,
 	ST_LSM6DS0_ID,
+	ST_LSM6DSRX_ID,
 	ST_LSM6DSX_MAX_ID,
 };
 

drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c

@@ -14,10 +14,10 @@
  * (e.g. Gx, Gy, Gz, Ax, Ay, Az), then data are repeated depending on the
  * value of the decimation factor and ODR set for each FIFO data set.
  *
- * LSM6DSO/LSM6DSOX/ASM330LHH/LSM6DSR/ISM330DHCX: The FIFO buffer can be
- * configured to store data from gyroscope and accelerometer. Each sample
- * is queued with a tag (1B) indicating data source (gyroscope, accelerometer,
- * hw timer).
+ * LSM6DSO/LSM6DSOX/ASM330LHH/LSM6DSR/LSM6DSRX/ISM330DHCX:
+ * The FIFO buffer can be configured to store data from gyroscope and
+ * accelerometer. Each sample is queued with a tag (1B) indicating data
+ * source (gyroscope, accelerometer, hw timer).
  *
  * FIFO supported modes:
  *  - BYPASS: FIFO disabled

drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c

@@ -1084,6 +1084,9 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 			}, {
 				.hw_id = ST_ISM330DHCX_ID,
 				.name = ST_ISM330DHCX_DEV_NAME,
+			}, {
+				.hw_id = ST_LSM6DSRX_ID,
+				.name = ST_LSM6DSRX_DEV_NAME,
 			},
 		},
 		.channels = {

drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c

@@ -91,6 +91,10 @@ static const struct of_device_id st_lsm6dsx_i2c_of_match[] = {
 		.compatible = "st,lsm6ds0",
 		.data = (void *)ST_LSM6DS0_ID,
 	},
+	{
+		.compatible = "st,lsm6dsrx",
+		.data = (void *)ST_LSM6DSRX_ID,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, st_lsm6dsx_i2c_of_match);
@@ -109,6 +113,7 @@ static const struct i2c_device_id st_lsm6dsx_i2c_id_table[] = {
 	{ ST_ISM330DHCX_DEV_NAME, ST_ISM330DHCX_ID },
 	{ ST_LSM9DS1_DEV_NAME, ST_LSM9DS1_ID },
 	{ ST_LSM6DS0_DEV_NAME, ST_LSM6DS0_ID },
+	{ ST_LSM6DSRX_DEV_NAME, ST_LSM6DSRX_ID },
 	{},
 };
 MODULE_DEVICE_TABLE(i2c, st_lsm6dsx_i2c_id_table);

drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c

@@ -91,6 +91,10 @@ static const struct of_device_id st_lsm6dsx_spi_of_match[] = {
 		.compatible = "st,lsm6ds0",
 		.data = (void *)ST_LSM6DS0_ID,
 	},
+	{
+		.compatible = "st,lsm6dsrx",
+		.data = (void *)ST_LSM6DSRX_ID,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, st_lsm6dsx_spi_of_match);
@@ -109,6 +113,7 @@ static const struct spi_device_id st_lsm6dsx_spi_id_table[] = {
 	{ ST_ISM330DHCX_DEV_NAME, ST_ISM330DHCX_ID },
 	{ ST_LSM9DS1_DEV_NAME, ST_LSM9DS1_ID },
 	{ ST_LSM6DS0_DEV_NAME, ST_LSM6DS0_ID },
+	{ ST_LSM6DSRX_DEV_NAME, ST_LSM6DSRX_ID },
 	{},
 };
 MODULE_DEVICE_TABLE(spi, st_lsm6dsx_spi_id_table);