Commit e1c5d708 authored by Linus Walleij's avatar Linus Walleij Committed by Jonathan Cameron
Browse files

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: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210518230722.522446-5-linus.walleij@linaro.org


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent d5b92001

drivers/iio/gyro/st_gyro_core.c

+27 −6
Original line number Diff line number Diff line
@@ -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;