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path: root/drivers/iio/dac/mcp4725.c
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Diffstat (limited to 'drivers/iio/dac/mcp4725.c')
-rw-r--r--drivers/iio/dac/mcp4725.c19
1 files changed, 6 insertions, 13 deletions
diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
index 1397b6e0e41..9f57ae84ab8 100644
--- a/drivers/iio/dac/mcp4725.c
+++ b/drivers/iio/dac/mcp4725.c
@@ -195,8 +195,9 @@ static const struct iio_chan_spec_ext_info mcp4725_ext_info[] = {
.name = "powerdown",
.read = mcp4725_read_powerdown,
.write = mcp4725_write_powerdown,
+ .shared = IIO_SEPARATE,
},
- IIO_ENUM("powerdown_mode", false, &mcp4725_powerdown_mode_enum),
+ IIO_ENUM("powerdown_mode", IIO_SEPARATE, &mcp4725_powerdown_mode_enum),
IIO_ENUM_AVAILABLE("powerdown_mode", &mcp4725_powerdown_mode_enum),
{ },
};
@@ -238,17 +239,15 @@ static int mcp4725_read_raw(struct iio_dev *indio_dev,
int *val, int *val2, long mask)
{
struct mcp4725_data *data = iio_priv(indio_dev);
- unsigned long scale_uv;
switch (mask) {
case IIO_CHAN_INFO_RAW:
*val = data->dac_value;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
- scale_uv = (data->vref_mv * 1000) >> 12;
- *val = scale_uv / 1000000;
- *val2 = scale_uv % 1000000;
- return IIO_VAL_INT_PLUS_MICRO;
+ *val = data->vref_mv;
+ *val2 = 12;
+ return IIO_VAL_FRACTIONAL_LOG2;
}
return -EINVAL;
}
@@ -321,13 +320,7 @@ static int mcp4725_probe(struct i2c_client *client,
data->powerdown_mode = pd ? pd-1 : 2; /* 500kohm_to_gnd */
data->dac_value = (inbuf[1] << 4) | (inbuf[2] >> 4);
- err = iio_device_register(indio_dev);
- if (err)
- return err;
-
- dev_info(&client->dev, "MCP4725 DAC registered\n");
-
- return 0;
+ return iio_device_register(indio_dev);
}
static int mcp4725_remove(struct i2c_client *client)