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iio: gyro: st_gyro: Support mount matrix 

Add support to read and present the mounting matrix on ST gyroscopes.

Cc: Denis Ciocca <denis.ciocca@st.com>
Cc: Daniel Drake <drake@endlessm.com>
Cc: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210518230722.522446-5-linus.walleij@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Linus Walleij 2021-05-19 01:07:22 +02:00 committed by Jonathan Cameron
parent d5b920015f
commit e1c5d708bf
1 changed files with 27 additions and 6 deletions
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33
drivers/iio/gyro/st_gyro_core.c
View File

@ -37,19 +37,36 @@
#define ST_GYRO_FS_AVL_500DPS 500
#define ST_GYRO_FS_AVL_2000DPS 2000
static const struct iio_mount_matrix *
st_gyro_get_mount_matrix(const struct iio_dev *indio_dev,
const struct iio_chan_spec *chan)
{
struct st_sensor_data *gdata = iio_priv(indio_dev);
return &gdata->mount_matrix;
}
static const struct iio_chan_spec_ext_info st_gyro_mount_matrix_ext_info[] = {
IIO_MOUNT_MATRIX(IIO_SHARED_BY_ALL, st_gyro_get_mount_matrix),
{ }
};
static const struct iio_chan_spec st_gyro_16bit_channels[] = {
ST_SENSORS_LSM_CHANNELS(IIO_ANGL_VEL,
ST_SENSORS_LSM_CHANNELS_EXT(IIO_ANGL_VEL,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16,
ST_GYRO_DEFAULT_OUT_X_L_ADDR),
ST_SENSORS_LSM_CHANNELS(IIO_ANGL_VEL,
ST_GYRO_DEFAULT_OUT_X_L_ADDR,
st_gyro_mount_matrix_ext_info),
ST_SENSORS_LSM_CHANNELS_EXT(IIO_ANGL_VEL,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16,
ST_GYRO_DEFAULT_OUT_Y_L_ADDR),
ST_SENSORS_LSM_CHANNELS(IIO_ANGL_VEL,
ST_GYRO_DEFAULT_OUT_Y_L_ADDR,
st_gyro_mount_matrix_ext_info),
ST_SENSORS_LSM_CHANNELS_EXT(IIO_ANGL_VEL,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16,
ST_GYRO_DEFAULT_OUT_Z_L_ADDR),
ST_GYRO_DEFAULT_OUT_Z_L_ADDR,
st_gyro_mount_matrix_ext_info),
IIO_CHAN_SOFT_TIMESTAMP(3)
};
@ -479,6 +496,10 @@ int st_gyro_common_probe(struct iio_dev *indio_dev)
indio_dev->channels = gdata->sensor_settings->ch;
indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS;
err = iio_read_mount_matrix(gdata->dev, &gdata->mount_matrix);
if (err)
return err;
gdata->current_fullscale = &gdata->sensor_settings->fs.fs_avl[0];
gdata->odr = gdata->sensor_settings->odr.odr_avl[0].hz;