diff options
Diffstat (limited to 'drivers/iio/dac/max517.c')
| -rw-r--r-- | drivers/iio/dac/max517.c | 19 |
1 files changed, 4 insertions, 15 deletions
diff --git a/drivers/iio/dac/max517.c b/drivers/iio/dac/max517.c index 83adcbf1a20..9a82a7255eb 100644 --- a/drivers/iio/dac/max517.c +++ b/drivers/iio/dac/max517.c @@ -19,7 +19,6 @@ */ #include <linux/module.h> -#include <linux/init.h> #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/i2c.h> @@ -82,15 +81,13 @@ static int max517_read_raw(struct iio_dev *indio_dev, long m) { struct max517_data *data = iio_priv(indio_dev); - unsigned int scale_uv; switch (m) { case IIO_CHAN_INFO_SCALE: /* Corresponds to Vref / 2^(bits) */ - scale_uv = (data->vref_mv[chan->channel] * 1000) >> 8; - *val = scale_uv / 1000000; - *val2 = scale_uv % 1000000; - return IIO_VAL_INT_PLUS_MICRO; + *val = data->vref_mv[chan->channel]; + *val2 = 8; + return IIO_VAL_FRACTIONAL_LOG2; default: break; } @@ -148,7 +145,6 @@ static const struct iio_info max517_info = { .channel = (chan), \ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \ BIT(IIO_CHAN_INFO_SCALE), \ - .scan_type = IIO_ST('u', 8, 8, 0), \ } static const struct iio_chan_spec max517_channels[] = { @@ -162,7 +158,6 @@ static int max517_probe(struct i2c_client *client, struct max517_data *data; struct iio_dev *indio_dev; struct max517_platform_data *platform_data = client->dev.platform_data; - int err; indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); if (!indio_dev) @@ -194,13 +189,7 @@ static int max517_probe(struct i2c_client *client, data->vref_mv[1] = platform_data->vref_mv[1]; } - err = iio_device_register(indio_dev); - if (err) - return err; - - dev_info(&client->dev, "DAC registered\n"); - - return 0; + return iio_device_register(indio_dev); } static int max517_remove(struct i2c_client *client) |