Add support to read and present the mounting matrix on ST magnetometers.
Cc: Hans de Goede <hdegoede@xxxxxxxxxx>
Cc: Denis Ciocca <denis.ciocca@xxxxxx>
Cc: Daniel Drake <drake@xxxxxxxxxxxx>
Cc: Stephan Gerhold <stephan@xxxxxxxxxxx>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
ChangeLog v2->v3:
- Rebase on Andy's patches and mount-matrix generalization
- Drop surplus comma.
ChangeLog v1->v2:
- New patch because why not.
---
drivers/iio/magnetometer/st_magn_core.c | 63 ++++++++++++++++++-------
1 file changed, 45 insertions(+), 18 deletions(-)
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
index 1596faa74da9..0048c3cd36ee 100644
--- a/drivers/iio/magnetometer/st_magn_core.c
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -59,51 +59,74 @@
#define ST_MAGN_4_OUT_Y_L_ADDR 0x0a
#define ST_MAGN_4_OUT_Z_L_ADDR 0x0c
+static const struct iio_mount_matrix *
+st_magn_get_mount_matrix(const struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan)
+{
+ struct st_sensor_data *mdata = iio_priv(indio_dev);
+
+ return &mdata->mount_matrix;
+}
+
+static const struct iio_chan_spec_ext_info st_magn_mount_matrix_ext_info[] = {
+ IIO_MOUNT_MATRIX(IIO_SHARED_BY_ALL, st_magn_get_mount_matrix),
+ { }
+};
+
static const struct iio_chan_spec st_magn_16bit_channels[] = {
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_BE, 16, 16,
- ST_MAGN_DEFAULT_OUT_X_H_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ ST_MAGN_DEFAULT_OUT_X_H_ADDR,
+ st_magn_mount_matrix_ext_info),
+ ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_BE, 16, 16,
- ST_MAGN_DEFAULT_OUT_Y_H_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ ST_MAGN_DEFAULT_OUT_Y_H_ADDR,
+ st_magn_mount_matrix_ext_info),
+ ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_BE, 16, 16,
- ST_MAGN_DEFAULT_OUT_Z_H_ADDR),
+ ST_MAGN_DEFAULT_OUT_Z_H_ADDR,
+ st_magn_mount_matrix_ext_info),
IIO_CHAN_SOFT_TIMESTAMP(3)
};
static const struct iio_chan_spec st_magn_2_16bit_channels[] = {
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16,
- ST_MAGN_2_OUT_X_L_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ ST_MAGN_2_OUT_X_L_ADDR,
+ st_magn_mount_matrix_ext_info),
+ ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16,
- ST_MAGN_2_OUT_Y_L_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ ST_MAGN_2_OUT_Y_L_ADDR,
+ st_magn_mount_matrix_ext_info),
+ ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16,
- ST_MAGN_2_OUT_Z_L_ADDR),
+ ST_MAGN_2_OUT_Z_L_ADDR,
+ st_magn_mount_matrix_ext_info),
IIO_CHAN_SOFT_TIMESTAMP(3)
};
static const struct iio_chan_spec st_magn_3_16bit_channels[] = {
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16,
- ST_MAGN_3_OUT_X_L_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ ST_MAGN_3_OUT_X_L_ADDR,
+ st_magn_mount_matrix_ext_info),
+ ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16,
- ST_MAGN_3_OUT_Y_L_ADDR),
- ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ ST_MAGN_3_OUT_Y_L_ADDR,
+ st_magn_mount_matrix_ext_info),
+ ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16,
- ST_MAGN_3_OUT_Z_L_ADDR),
+ ST_MAGN_3_OUT_Z_L_ADDR,
+ st_magn_mount_matrix_ext_info),
IIO_CHAN_SOFT_TIMESTAMP(3)
};
@@ -607,6 +630,10 @@ int st_magn_common_probe(struct iio_dev *indio_dev)
indio_dev->channels = mdata->sensor_settings->ch;
indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS;
+ err = iio_read_mount_matrix(mdata->dev, &mdata->mount_matrix);
+ if (err)
+ return err;
+
mdata->current_fullscale = &mdata->sensor_settings->fs.fs_avl[0];
mdata->odr = mdata->sensor_settings->odr.odr_avl[0].hz;
--
2.31.1
