iio: imu: st_lsm6dsx: add support to ASM330LHB

Add support to STM ASM330LHB (acc + gyro) automotive Mems sensor.
The ASM330LHB sensor can use ASM330LHH as fallback device since it
implements all the ASM330LHB features currently implemented in
st_lsm6dsx.

Datasheet: https://www.st.com/resource/en/datasheet/asm330lhb.pdfSigned-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/a1d675457da7aa9e979d8cabea410e942e015e71.1678100533.git.lorenzo@kernel.orgSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/imu/st_lsm6dsx/Kconfig

@@ -14,8 +14,8 @@ config IIO_ST_LSM6DSX
 	  sensor. Supported devices: lsm6ds3, lsm6ds3h, lsm6dsl, lsm6dsm,
 	  ism330dlc, lsm6dso, lsm6dsox, asm330lhh, asm330lhhx, lsm6dsr,
 	  lsm6ds3tr-c, ism330dhcx, lsm6dsrx, lsm6ds0, lsm6dsop, lsm6dstx,
-	  lsm6dsv, lsm6dsv16x, lsm6dso16is, ism330is, lsm6dst and the
-	  accelerometer/gyroscope of lsm9ds1.
+	  lsm6dsv, lsm6dsv16x, lsm6dso16is, ism330is, asm330lhb, lsm6dst
+	  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

@@ -37,6 +37,7 @@
 #define ST_LSM6DSV16X_DEV_NAME	"lsm6dsv16x"
 #define ST_LSM6DSO16IS_DEV_NAME	"lsm6dso16is"
 #define ST_ISM330IS_DEV_NAME	"ism330is"
+#define ST_ASM330LHB_DEV_NAME	"asm330lhb"
 
 enum st_lsm6dsx_hw_id {
 	ST_LSM6DS3_ID,
@@ -61,6 +62,7 @@ enum st_lsm6dsx_hw_id {
 	ST_LSM6DSV16X_ID,
 	ST_LSM6DSO16IS_ID,
 	ST_ISM330IS_ID,
+	ST_ASM330LHB_ID,
 	ST_LSM6DSX_MAX_ID,
 };
 

drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c

@@ -15,7 +15,7 @@
  * value of the decimation factor and ODR set for each FIFO data set.
  *
  * LSM6DSO/LSM6DSOX/ASM330LHH/ASM330LHHX/LSM6DSR/LSM6DSRX/ISM330DHCX/
- * LSM6DST/LSM6DSOP/LSM6DSTX/LSM6DSV:
+ * LSM6DST/LSM6DSOP/LSM6DSTX/LSM6DSV/ASM330LHB:
  * 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).

drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c

@@ -1032,6 +1032,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 				.hw_id = ST_LSM6DSOP_ID,
 				.name = ST_LSM6DSOP_DEV_NAME,
 				.wai = 0x6c,
+			}, {
+				.hw_id = ST_ASM330LHB_ID,
+				.name = ST_ASM330LHB_DEV_NAME,
+				.wai = 0x6b,
 			},
 		},
 		.channels = {

drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c

@@ -125,6 +125,10 @@ static const struct of_device_id st_lsm6dsx_i2c_of_match[] = {
 		.compatible = "st,ism330is",
 		.data = (void *)ST_ISM330IS_ID,
 	},
+	{
+		.compatible = "st,asm330lhb",
+		.data = (void *)ST_ASM330LHB_ID,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, st_lsm6dsx_i2c_of_match);
@@ -152,6 +156,7 @@ static const struct i2c_device_id st_lsm6dsx_i2c_id_table[] = {
 	{ ST_LSM6DSV16X_DEV_NAME, ST_LSM6DSV16X_ID },
 	{ ST_LSM6DSO16IS_DEV_NAME, ST_LSM6DSO16IS_ID },
 	{ ST_ISM330IS_DEV_NAME, ST_ISM330IS_ID },
+	{ ST_ASM330LHB_DEV_NAME, ST_ASM330LHB_ID },
 	{},
 };
 MODULE_DEVICE_TABLE(i2c, st_lsm6dsx_i2c_id_table);

drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c

@@ -125,6 +125,10 @@ static const struct of_device_id st_lsm6dsx_spi_of_match[] = {
 		.compatible = "st,ism330is",
 		.data = (void *)ST_ISM330IS_ID,
 	},
+	{
+		.compatible = "st,asm330lhb",
+		.data = (void *)ST_ASM330LHB_ID,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, st_lsm6dsx_spi_of_match);
@@ -152,6 +156,7 @@ static const struct spi_device_id st_lsm6dsx_spi_id_table[] = {
 	{ ST_LSM6DSV16X_DEV_NAME, ST_LSM6DSV16X_ID },
 	{ ST_LSM6DSO16IS_DEV_NAME, ST_LSM6DSO16IS_ID },
 	{ ST_ISM330IS_DEV_NAME, ST_ISM330IS_ID },
+	{ ST_ASM330LHB_DEV_NAME, ST_ASM330LHB_ID },
 	{},
 };
 MODULE_DEVICE_TABLE(spi, st_lsm6dsx_spi_id_table);