aboutsummaryrefslogtreecommitdiff
path: root/drivers/iio/dac/ad5624r_spi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/iio/dac/ad5624r_spi.c')
-rw-r--r--drivers/iio/dac/ad5624r_spi.c58
1 files changed, 28 insertions, 30 deletions
diff --git a/drivers/iio/dac/ad5624r_spi.c b/drivers/iio/dac/ad5624r_spi.c
index 6a7d6a48cc6..e8199cce2ae 100644
--- a/drivers/iio/dac/ad5624r_spi.c
+++ b/drivers/iio/dac/ad5624r_spi.c
@@ -50,15 +50,12 @@ static int ad5624r_read_raw(struct iio_dev *indio_dev,
long m)
{
struct ad5624r_state *st = iio_priv(indio_dev);
- unsigned long scale_uv;
switch (m) {
case IIO_CHAN_INFO_SCALE:
- scale_uv = (st->vref_mv * 1000) >> chan->scan_type.realbits;
- *val = scale_uv / 1000;
- *val2 = (scale_uv % 1000) * 1000;
- return IIO_VAL_INT_PLUS_MICRO;
-
+ *val = st->vref_mv;
+ *val2 = chan->scan_type.realbits;
+ return IIO_VAL_FRACTIONAL_LOG2;
}
return -EINVAL;
}
@@ -163,8 +160,10 @@ static const struct iio_chan_spec_ext_info ad5624r_ext_info[] = {
.name = "powerdown",
.read = ad5624r_read_dac_powerdown,
.write = ad5624r_write_dac_powerdown,
+ .shared = IIO_SEPARATE,
},
- IIO_ENUM("powerdown_mode", true, &ad5624r_powerdown_mode_enum),
+ IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE,
+ &ad5624r_powerdown_mode_enum),
IIO_ENUM_AVAILABLE("powerdown_mode", &ad5624r_powerdown_mode_enum),
{ },
};
@@ -174,10 +173,15 @@ static const struct iio_chan_spec_ext_info ad5624r_ext_info[] = {
.indexed = 1, \
.output = 1, \
.channel = (_chan), \
- .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | \
- IIO_CHAN_INFO_SCALE_SHARED_BIT, \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
.address = (_chan), \
- .scan_type = IIO_ST('u', (_bits), 16, 16 - (_bits)), \
+ .scan_type = { \
+ .sign = 'u', \
+ .realbits = (_bits), \
+ .storagebits = 16, \
+ .shift = 16 - (_bits), \
+ }, \
.ext_info = ad5624r_ext_info, \
}
@@ -220,25 +224,27 @@ static const struct ad5624r_chip_info ad5624r_chip_info_tbl[] = {
},
};
-static int __devinit ad5624r_probe(struct spi_device *spi)
+static int ad5624r_probe(struct spi_device *spi)
{
struct ad5624r_state *st;
struct iio_dev *indio_dev;
int ret, voltage_uv = 0;
- indio_dev = iio_device_alloc(sizeof(*st));
- if (indio_dev == NULL) {
- ret = -ENOMEM;
- goto error_ret;
- }
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+ if (!indio_dev)
+ return -ENOMEM;
st = iio_priv(indio_dev);
- st->reg = regulator_get(&spi->dev, "vcc");
+ st->reg = devm_regulator_get(&spi->dev, "vcc");
if (!IS_ERR(st->reg)) {
ret = regulator_enable(st->reg);
if (ret)
- goto error_put_reg;
+ return ret;
- voltage_uv = regulator_get_voltage(st->reg);
+ ret = regulator_get_voltage(st->reg);
+ if (ret < 0)
+ goto error_disable_reg;
+
+ voltage_uv = ret;
}
spi_set_drvdata(spi, indio_dev);
@@ -273,26 +279,18 @@ static int __devinit ad5624r_probe(struct spi_device *spi)
error_disable_reg:
if (!IS_ERR(st->reg))
regulator_disable(st->reg);
-error_put_reg:
- if (!IS_ERR(st->reg))
- regulator_put(st->reg);
- iio_device_free(indio_dev);
-error_ret:
return ret;
}
-static int __devexit ad5624r_remove(struct spi_device *spi)
+static int ad5624r_remove(struct spi_device *spi)
{
struct iio_dev *indio_dev = spi_get_drvdata(spi);
struct ad5624r_state *st = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
- if (!IS_ERR(st->reg)) {
+ if (!IS_ERR(st->reg))
regulator_disable(st->reg);
- regulator_put(st->reg);
- }
- iio_device_free(indio_dev);
return 0;
}
@@ -314,7 +312,7 @@ static struct spi_driver ad5624r_driver = {
.owner = THIS_MODULE,
},
.probe = ad5624r_probe,
- .remove = __devexit_p(ad5624r_remove),
+ .remove = ad5624r_remove,
.id_table = ad5624r_id,
};
module_spi_driver(ad5624r_driver);