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iio: accel: mc3230: add mount matrix support

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This patch allows to read a mount-matrix device tree property and report
to user-space or in-kernel iio clients.

Signed-off-by: Vasiliy Doylov <nekodevelopper@gmail.com>
Link: https://patch.msgid.link/20250116-mainlining-mc3510c-v4-2-a41308b85ec2@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Vasiliy Doylov
2025-01-16 16:52:43 +03:00
committed by Jonathan Cameron
parent 0f3a7135e3
commit e59c6acfd5
1 changed files with 24 additions and 4 deletions
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28
drivers/iio/accel/mc3230.c
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@@ -44,18 +44,34 @@ static const int mc3230_nscale = 115411765;
.channel2 = IIO_MOD_##axis, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
.ext_info = mc3230_ext_info, \
}
struct mc3230_data {
struct i2c_client *client;
struct iio_mount_matrix orientation;
};
static const struct iio_mount_matrix *
mc3230_get_mount_matrix(const struct iio_dev *indio_dev,
const struct iio_chan_spec *chan)
{
struct mc3230_data *data = iio_priv(indio_dev);
return &data->orientation;
}
static const struct iio_chan_spec_ext_info mc3230_ext_info[] = {
IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, mc3230_get_mount_matrix),
{ }
};
static const struct iio_chan_spec mc3230_channels[] = {
MC3230_CHANNEL(MC3230_REG_XOUT, X),
MC3230_CHANNEL(MC3230_REG_YOUT, Y),
MC3230_CHANNEL(MC3230_REG_ZOUT, Z),
};
struct mc3230_data {
struct i2c_client *client;
};
static int mc3230_set_opcon(struct mc3230_data *data, int opcon)
{
int ret;
@@ -141,6 +157,10 @@ static int mc3230_probe(struct i2c_client *client)
if (ret < 0)
return ret;
ret = iio_read_mount_matrix(&client->dev, &data->orientation);
if (ret)
return ret;
ret = iio_device_register(indio_dev);
if (ret < 0) {
dev_err(&client->dev, "device_register failed\n");