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path: root/drivers/iio/gyro/itg3200_core.c
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Diffstat (limited to 'drivers/iio/gyro/itg3200_core.c')
-rw-r--r--drivers/iio/gyro/itg3200_core.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/iio/gyro/itg3200_core.c b/drivers/iio/gyro/itg3200_core.c
index 7adecb562c81..203a6be33b70 100644
--- a/drivers/iio/gyro/itg3200_core.c
+++ b/drivers/iio/gyro/itg3200_core.c
@@ -242,6 +242,20 @@ err_ret:
return ret;
}
+static const struct iio_mount_matrix *
+itg3200_get_mount_matrix(const struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan)
+{
+ struct itg3200 *data = iio_priv(indio_dev);
+
+ return &data->orientation;
+}
+
+static const struct iio_chan_spec_ext_info itg3200_ext_info[] = {
+ IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, itg3200_get_mount_matrix),
+ { }
+};
+
#define ITG3200_ST \
{ .sign = 's', .realbits = 16, .storagebits = 16, .endianness = IIO_BE }
@@ -255,6 +269,7 @@ err_ret:
.address = ITG3200_REG_GYRO_ ## _mod ## OUT_H, \
.scan_index = ITG3200_SCAN_GYRO_ ## _mod, \
.scan_type = ITG3200_ST, \
+ .ext_info = itg3200_ext_info, \
}
static const struct iio_chan_spec itg3200_channels[] = {
@@ -297,6 +312,11 @@ static int itg3200_probe(struct i2c_client *client,
st = iio_priv(indio_dev);
+ ret = iio_read_mount_matrix(&client->dev, "mount-matrix",
+ &st->orientation);
+ if (ret)
+ return ret;
+
i2c_set_clientdata(client, indio_dev);
st->i2c = client;