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path: root/drivers/iio/dac/ad5380.c
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Diffstat (limited to 'drivers/iio/dac/ad5380.c')
-rw-r--r--drivers/iio/dac/ad5380.c103
1 files changed, 51 insertions, 52 deletions
diff --git a/drivers/iio/dac/ad5380.c b/drivers/iio/dac/ad5380.c
index 14991ac55f2..9de4c4d3828 100644
--- a/drivers/iio/dac/ad5380.c
+++ b/drivers/iio/dac/ad5380.c
@@ -204,7 +204,6 @@ static int ad5380_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int *val, int *val2, long info)
{
struct ad5380_state *st = iio_priv(indio_dev);
- unsigned long scale_uv;
int ret;
switch (info) {
@@ -225,10 +224,9 @@ static int ad5380_read_raw(struct iio_dev *indio_dev,
val -= (1 << chan->scan_type.realbits) / 2;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
- scale_uv = ((2 * st->vref) >> chan->scan_type.realbits) * 100;
- *val = scale_uv / 100000;
- *val2 = (scale_uv % 100000) * 10;
- return IIO_VAL_INT_PLUS_MICRO;
+ *val = 2 * st->vref;
+ *val2 = chan->scan_type.realbits;
+ return IIO_VAL_FRACTIONAL_LOG2;
default:
break;
}
@@ -247,8 +245,10 @@ static struct iio_chan_spec_ext_info ad5380_ext_info[] = {
.name = "powerdown",
.read = ad5380_read_dac_powerdown,
.write = ad5380_write_dac_powerdown,
+ .shared = IIO_SEPARATE,
},
- IIO_ENUM("powerdown_mode", true, &ad5380_powerdown_mode_enum),
+ IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE,
+ &ad5380_powerdown_mode_enum),
IIO_ENUM_AVAILABLE("powerdown_mode", &ad5380_powerdown_mode_enum),
{ },
};
@@ -257,11 +257,16 @@ static struct iio_chan_spec_ext_info ad5380_ext_info[] = {
.type = IIO_VOLTAGE, \
.indexed = 1, \
.output = 1, \
- .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | \
- IIO_CHAN_INFO_SCALE_SHARED_BIT | \
- IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT | \
- IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT, \
- .scan_type = IIO_ST('u', (_bits), 16, 14 - (_bits)), \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
+ BIT(IIO_CHAN_INFO_CALIBSCALE) | \
+ BIT(IIO_CHAN_INFO_CALIBBIAS), \
+ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
+ .scan_type = { \
+ .sign = 'u', \
+ .realbits = (_bits), \
+ .storagebits = 16, \
+ .shift = 14 - (_bits), \
+ }, \
.ext_info = ad5380_ext_info, \
}
@@ -269,76 +274,76 @@ static const struct ad5380_chip_info ad5380_chip_info_tbl[] = {
[ID_AD5380_3] = {
.channel_template = AD5380_CHANNEL(14),
.num_channels = 40,
- .int_vref = 1250000,
+ .int_vref = 1250,
},
[ID_AD5380_5] = {
.channel_template = AD5380_CHANNEL(14),
.num_channels = 40,
- .int_vref = 2500000,
+ .int_vref = 2500,
},
[ID_AD5381_3] = {
.channel_template = AD5380_CHANNEL(12),
.num_channels = 16,
- .int_vref = 1250000,
+ .int_vref = 1250,
},
[ID_AD5381_5] = {
.channel_template = AD5380_CHANNEL(12),
.num_channels = 16,
- .int_vref = 2500000,
+ .int_vref = 2500,
},
[ID_AD5382_3] = {
.channel_template = AD5380_CHANNEL(14),
.num_channels = 32,
- .int_vref = 1250000,
+ .int_vref = 1250,
},
[ID_AD5382_5] = {
.channel_template = AD5380_CHANNEL(14),
.num_channels = 32,
- .int_vref = 2500000,
+ .int_vref = 2500,
},
[ID_AD5383_3] = {
.channel_template = AD5380_CHANNEL(12),
.num_channels = 32,
- .int_vref = 1250000,
+ .int_vref = 1250,
},
[ID_AD5383_5] = {
.channel_template = AD5380_CHANNEL(12),
.num_channels = 32,
- .int_vref = 2500000,
+ .int_vref = 2500,
},
[ID_AD5390_3] = {
.channel_template = AD5380_CHANNEL(14),
.num_channels = 16,
- .int_vref = 1250000,
+ .int_vref = 1250,
},
[ID_AD5390_5] = {
.channel_template = AD5380_CHANNEL(14),
.num_channels = 16,
- .int_vref = 2500000,
+ .int_vref = 2500,
},
[ID_AD5391_3] = {
.channel_template = AD5380_CHANNEL(12),
.num_channels = 16,
- .int_vref = 1250000,
+ .int_vref = 1250,
},
[ID_AD5391_5] = {
.channel_template = AD5380_CHANNEL(12),
.num_channels = 16,
- .int_vref = 2500000,
+ .int_vref = 2500,
},
[ID_AD5392_3] = {
.channel_template = AD5380_CHANNEL(14),
.num_channels = 8,
- .int_vref = 1250000,
+ .int_vref = 1250,
},
[ID_AD5392_5] = {
.channel_template = AD5380_CHANNEL(14),
.num_channels = 8,
- .int_vref = 2500000,
+ .int_vref = 2500,
},
};
-static int __devinit ad5380_alloc_channels(struct iio_dev *indio_dev)
+static int ad5380_alloc_channels(struct iio_dev *indio_dev)
{
struct ad5380_state *st = iio_priv(indio_dev);
struct iio_chan_spec *channels;
@@ -361,19 +366,18 @@ static int __devinit ad5380_alloc_channels(struct iio_dev *indio_dev)
return 0;
}
-static int __devinit ad5380_probe(struct device *dev, struct regmap *regmap,
- enum ad5380_type type, const char *name)
+static int ad5380_probe(struct device *dev, struct regmap *regmap,
+ enum ad5380_type type, const char *name)
{
struct iio_dev *indio_dev;
struct ad5380_state *st;
unsigned int ctrl = 0;
int ret;
- indio_dev = iio_device_alloc(sizeof(*st));
+ indio_dev = devm_iio_device_alloc(dev, sizeof(*st));
if (indio_dev == NULL) {
dev_err(dev, "Failed to allocate iio device\n");
- ret = -ENOMEM;
- goto error_out;
+ return -ENOMEM;
}
st = iio_priv(indio_dev);
@@ -391,13 +395,13 @@ static int __devinit ad5380_probe(struct device *dev, struct regmap *regmap,
ret = ad5380_alloc_channels(indio_dev);
if (ret) {
dev_err(dev, "Failed to allocate channel spec: %d\n", ret);
- goto error_free;
+ return ret;
}
- if (st->chip_info->int_vref == 2500000)
+ if (st->chip_info->int_vref == 2500)
ctrl |= AD5380_CTRL_INT_VREF_2V5;
- st->vref_reg = regulator_get(dev, "vref");
+ st->vref_reg = devm_regulator_get(dev, "vref");
if (!IS_ERR(st->vref_reg)) {
ret = regulator_enable(st->vref_reg);
if (ret) {
@@ -406,7 +410,11 @@ static int __devinit ad5380_probe(struct device *dev, struct regmap *regmap,
goto error_free_reg;
}
- st->vref = regulator_get_voltage(st->vref_reg);
+ ret = regulator_get_voltage(st->vref_reg);
+ if (ret < 0)
+ goto error_disable_reg;
+
+ st->vref = ret / 1000;
} else {
st->vref = st->chip_info->int_vref;
ctrl |= AD5380_CTRL_INT_VREF_EN;
@@ -430,18 +438,12 @@ error_disable_reg:
if (!IS_ERR(st->vref_reg))
regulator_disable(st->vref_reg);
error_free_reg:
- if (!IS_ERR(st->vref_reg))
- regulator_put(st->vref_reg);
-
kfree(indio_dev->channels);
-error_free:
- iio_device_free(indio_dev);
-error_out:
return ret;
}
-static int __devexit ad5380_remove(struct device *dev)
+static int ad5380_remove(struct device *dev)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct ad5380_state *st = iio_priv(indio_dev);
@@ -452,11 +454,8 @@ static int __devexit ad5380_remove(struct device *dev)
if (!IS_ERR(st->vref_reg)) {
regulator_disable(st->vref_reg);
- regulator_put(st->vref_reg);
}
- iio_device_free(indio_dev);
-
return 0;
}
@@ -478,7 +477,7 @@ static const struct regmap_config ad5380_regmap_config = {
#if IS_ENABLED(CONFIG_SPI_MASTER)
-static int __devinit ad5380_spi_probe(struct spi_device *spi)
+static int ad5380_spi_probe(struct spi_device *spi)
{
const struct spi_device_id *id = spi_get_device_id(spi);
struct regmap *regmap;
@@ -491,7 +490,7 @@ static int __devinit ad5380_spi_probe(struct spi_device *spi)
return ad5380_probe(&spi->dev, regmap, id->driver_data, id->name);
}
-static int __devexit ad5380_spi_remove(struct spi_device *spi)
+static int ad5380_spi_remove(struct spi_device *spi)
{
return ad5380_remove(&spi->dev);
}
@@ -523,7 +522,7 @@ static struct spi_driver ad5380_spi_driver = {
.owner = THIS_MODULE,
},
.probe = ad5380_spi_probe,
- .remove = __devexit_p(ad5380_spi_remove),
+ .remove = ad5380_spi_remove,
.id_table = ad5380_spi_ids,
};
@@ -552,8 +551,8 @@ static inline void ad5380_spi_unregister_driver(void)
#if IS_ENABLED(CONFIG_I2C)
-static int __devinit ad5380_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int ad5380_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
{
struct regmap *regmap;
@@ -565,7 +564,7 @@ static int __devinit ad5380_i2c_probe(struct i2c_client *i2c,
return ad5380_probe(&i2c->dev, regmap, id->driver_data, id->name);
}
-static int __devexit ad5380_i2c_remove(struct i2c_client *i2c)
+static int ad5380_i2c_remove(struct i2c_client *i2c)
{
return ad5380_remove(&i2c->dev);
}
@@ -597,7 +596,7 @@ static struct i2c_driver ad5380_i2c_driver = {
.owner = THIS_MODULE,
},
.probe = ad5380_i2c_probe,
- .remove = __devexit_p(ad5380_i2c_remove),
+ .remove = ad5380_i2c_remove,
.id_table = ad5380_i2c_ids,
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 21:55:52 +0000