diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600.h b/drivers/iio/imu/inv_icm42600/inv_icm42600.h
index c0f5059b13b3..236f4648c5eb 100644
--- a/drivers/iio/imu/inv_icm42600/inv_icm42600.h
+++ b/drivers/iio/imu/inv_icm42600/inv_icm42600.h
@@ -362,7 +362,7 @@ extern const struct regmap_config inv_icm42600_regmap_config;
 extern const struct dev_pm_ops inv_icm42600_pm_ops;
 
 const struct iio_mount_matrix *
-inv_icm42600_get_mount_matrix(const struct iio_dev *indio_dev,
+inv_icm42600_get_mount_matrix(struct iio_dev *indio_dev,
 			      const struct iio_chan_spec *chan);
 
 uint32_t inv_icm42600_odr_to_period(enum inv_icm42600_odr odr);
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
index 8bd77185ccb7..c49dc7e906c2 100644
--- a/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
+++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
@@ -90,10 +90,10 @@ static const struct inv_icm42600_hw inv_icm42600_hw[INV_CHIP_NB] = {
 };
 
 const struct iio_mount_matrix *
-inv_icm42600_get_mount_matrix(const struct iio_dev *indio_dev,
+inv_icm42600_get_mount_matrix(struct iio_dev *indio_dev,
 			      const struct iio_chan_spec *chan)
 {
-	const struct inv_icm42600_state *st = iio_device_get_drvdata(indio_dev);
+	struct inv_icm42600_state *st = iio_device_get_drvdata(indio_dev);
 
 	return &st->orientation;
 }
@@ -592,7 +592,7 @@ int inv_icm42600_core_probe(struct regmap *regmap, int chip, int irq,
 	st->chip = chip;
 	st->map = regmap;
 
-	ret = iio_read_mount_matrix(dev, "mount-matrix", &st->orientation);
+	ret = of_iio_read_mount_matrix(dev, "mount-matrix", &st->orientation);
 	if (ret) {
 		dev_err(dev, "failed to retrieve mounting matrix %d\n", ret);
 		return ret;