diff options
| author |   Peter Meerwald <pmeerw@pmeerw.net> | 2014-02-05 09:09:00 +0000 |
|---|---|---|
| committer |   Jonathan Cameron <jic23@kernel.org> | 2014-05-03 11:27:52 +0100 |
| commit | 0828eddc56d38b70f9a9e5cf7a0050328a90e7a1 (patch) | |
| tree | 98b579d7a35842d5320dc9c8c799297800107d4d /drivers/iio | |
| parent | iio:magnetometer:mag3110: Fix initialization of ctrl_reg1 (diff) | |
| download | linux-dev-0828eddc56d38b70f9a9e5cf7a0050328a90e7a1.tar.xz linux-dev-0828eddc56d38b70f9a9e5cf7a0050328a90e7a1.zip | |
iio:magnetometer:mag3110: Enable user offset calibration
add IIO_CHAN_INFO_CALIBBIAS
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/magnetometer/mag3110.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c index 1b2df75d07d0..e3106b43ef48 100644 --- a/drivers/iio/magnetometer/mag3110.c +++ b/drivers/iio/magnetometer/mag3110.c @@ -199,6 +199,13 @@ static int mag3110_read_raw(struct iio_dev *indio_dev, *val = mag3110_samp_freq[i][0]; *val2 = mag3110_samp_freq[i][1]; return IIO_VAL_INT_PLUS_MICRO; + case IIO_CHAN_INFO_CALIBBIAS: + ret = i2c_smbus_read_word_swapped(data->client, + MAG3110_OFF_X + 2 * chan->scan_index); + if (ret < 0) + return ret; + *val = sign_extend32(ret >> 1, 14); + return IIO_VAL_INT; } return -EINVAL; } @@ -223,6 +230,11 @@ static int mag3110_write_raw(struct iio_dev *indio_dev, data->ctrl_reg1 |= rate << MAG3110_CTRL_DR_SHIFT; return i2c_smbus_write_byte_data(data->client, MAG3110_CTRL_REG1, data->ctrl_reg1); + case IIO_CHAN_INFO_CALIBBIAS: + if (val < -10000 || val > 10000) + return -EINVAL; + return i2c_smbus_write_word_swapped(data->client, + MAG3110_OFF_X + 2 * chan->scan_index, val << 1); default: return -EINVAL; } @@ -260,7 +272,8 @@ done: .type = IIO_MAGN, \ .modified = 1, \ .channel2 = IIO_MOD_##axis, \ - .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \ + BIT(IIO_CHAN_INFO_CALIBBIAS), \ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ) | \ BIT(IIO_CHAN_INFO_SCALE), \ .scan_index = idx, \ @@ -345,7 +358,7 @@ static int mag3110_probe(struct i2c_client *client, return ret; ret = i2c_smbus_write_byte_data(client, MAG3110_CTRL_REG2, - MAG3110_CTRL_AUTO_MRST_EN | MAG3110_CTRL_RAW); + MAG3110_CTRL_AUTO_MRST_EN); if (ret < 0) return ret; |