iio: imu: st_lsm6dsx: add support to ISM330IS

Add support to STM ISM330IS (accelerometer and gyroscope) Mems sensor.
The ISM330IS sensor can use LSM6DSO16IS as fallback device since it
implements all the ISM330IS features currently implemented in
st_lsm6dsx.

Datasheet: https://www.st.com/resource/en/datasheet/ism330is.pdf
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/4cd1614060e06f49cd92f5930d8fd40117c07920.1669279604.git.lorenzo@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

5 files changed, 20 insertions, 4 deletions

diff --git a/drivers/iio/imu/st_lsm6dsx/Kconfig b/drivers/iio/imu/st_lsm6dsx/Kconfig
index 0096035728cd..f6660847fb58 100644
--- a/drivers/iio/imu/st_lsm6dsx/Kconfig
+++ b/drivers/iio/imu/st_lsm6dsx/Kconfig
@@ -13,8 +13,8 @@ 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, the accelerometer/gyroscope
-	  of lsm9ds1 and lsm6dst.
+	  lsm6dsv, lsm6dsv16x, lsm6dso16is, ism330is, lsm6dst and the
+	  accelerometer/gyroscope of lsm9ds1.
 
 	  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 abf14a2ce0e9..5b6f195748fc 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
@@ -36,6 +36,7 @@
 #define ST_LSM6DSV_DEV_NAME	"lsm6dsv"
 #define ST_LSM6DSV16X_DEV_NAME	"lsm6dsv16x"
 #define ST_LSM6DSO16IS_DEV_NAME	"lsm6dso16is"
+#define ST_ISM330IS_DEV_NAME	"ism330is"
 
 enum st_lsm6dsx_hw_id {
 	ST_LSM6DS3_ID,
@@ -59,6 +60,7 @@ enum st_lsm6dsx_hw_id {
 	ST_LSM6DSV_ID,
 	ST_LSM6DSV16X_ID,
 	ST_LSM6DSO16IS_ID,
+	ST_ISM330IS_ID,
 	ST_LSM6DSX_MAX_ID,
 };
 
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index 57a79bf35bba..3f6060c64f32 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -27,7 +27,7 @@
  *   - FIFO size: 4KB
  *
  * - LSM6DSO/LSM6DSOX/ASM330LHH/ASM330LHHX/LSM6DSR/ISM330DHCX/LSM6DST/LSM6DSOP/
- *   LSM6DSTX/LSM6DSO16IS:
+ *   LSM6DSTX/LSM6DSO16IS/ISM330IS:
  *   - Accelerometer/Gyroscope supported ODR [Hz]: 12.5, 26, 52, 104, 208, 416,
  *     833
  *   - Accelerometer supported full-scale [g]: +-2/+-4/+-8/+-16
@@ -1393,7 +1393,11 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 				.hw_id = ST_LSM6DSO16IS_ID,
 				.name = ST_LSM6DSO16IS_DEV_NAME,
 				.wai = 0x22,
-			},
+			}, {
+				.hw_id = ST_ISM330IS_ID,
+				.name = ST_ISM330IS_DEV_NAME,
+				.wai = 0x22,
+			}
 		},
 		.channels = {
 			[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 c34ccc85e4c7..df5f60925260 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c
@@ -121,6 +121,10 @@ static const struct of_device_id st_lsm6dsx_i2c_of_match[] = {
 		.compatible = "st,lsm6dso16is",
 		.data = (void *)ST_LSM6DSO16IS_ID,
 	},
+	{
+		.compatible = "st,ism330is",
+		.data = (void *)ST_ISM330IS_ID,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, st_lsm6dsx_i2c_of_match);
@@ -147,6 +151,7 @@ static const struct i2c_device_id st_lsm6dsx_i2c_id_table[] = {
 	{ ST_LSM6DSV_DEV_NAME, ST_LSM6DSV_ID },
 	{ ST_LSM6DSV16X_DEV_NAME, ST_LSM6DSV16X_ID },
 	{ ST_LSM6DSO16IS_DEV_NAME, ST_LSM6DSO16IS_ID },
+	{ ST_ISM330IS_DEV_NAME, ST_ISM330IS_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 24d5e51a8662..974584bda875 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c
@@ -121,6 +121,10 @@ static const struct of_device_id st_lsm6dsx_spi_of_match[] = {
 		.compatible = "st,lsm6dso16is",
 		.data = (void *)ST_LSM6DSO16IS_ID,
 	},
+	{
+		.compatible = "st,ism330is",
+		.data = (void *)ST_ISM330IS_ID,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, st_lsm6dsx_spi_of_match);
@@ -147,6 +151,7 @@ static const struct spi_device_id st_lsm6dsx_spi_id_table[] = {
 	{ ST_LSM6DSV_DEV_NAME, ST_LSM6DSV_ID },
 	{ ST_LSM6DSV16X_DEV_NAME, ST_LSM6DSV16X_ID },
 	{ ST_LSM6DSO16IS_DEV_NAME, ST_LSM6DSO16IS_ID },
+	{ ST_ISM330IS_DEV_NAME, ST_ISM330IS_ID },
 	{},
 };
 MODULE_DEVICE_TABLE(spi, st_lsm6dsx_spi_id_table);