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-rw-r--r--drivers/iio/dac/Kconfig44
-rw-r--r--drivers/iio/dac/Makefile1
-rw-r--r--drivers/iio/dac/ad5064.c21
-rw-r--r--drivers/iio/dac/ad5360.c15
-rw-r--r--drivers/iio/dac/ad5380.c18
-rw-r--r--drivers/iio/dac/ad5421.c19
-rw-r--r--drivers/iio/dac/ad5446.c19
-rw-r--r--drivers/iio/dac/ad5449.c15
-rw-r--r--drivers/iio/dac/ad5504.c31
-rw-r--r--drivers/iio/dac/ad5624r_spi.c22
-rw-r--r--drivers/iio/dac/ad5686.c17
-rw-r--r--drivers/iio/dac/ad5755.c14
-rw-r--r--drivers/iio/dac/ad5764.c20
-rw-r--r--drivers/iio/dac/ad5791.c35
-rw-r--r--drivers/iio/dac/ad7303.c31
-rw-r--r--drivers/iio/dac/max517.c17
-rw-r--r--drivers/iio/dac/mcp4725.c177
17 files changed, 253 insertions, 263 deletions
diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig
index c9c33ce32d3..3c6a78a75b7 100644
--- a/drivers/iio/dac/Kconfig
+++ b/drivers/iio/dac/Kconfig
@@ -1,6 +1,8 @@
#
# DAC drivers
#
+# When adding new entries keep the list in alphabetical order
+
menu "Digital to analog converters"
config AD5064
@@ -15,7 +17,7 @@ config AD5064
module will be called ad5064.
config AD5360
- tristate "Analog Devices Analog Devices AD5360/61/62/63/70/71/73 DAC driver"
+ tristate "Analog Devices AD5360/61/62/63/70/71/73 DAC driver"
depends on SPI
help
Say yes here to build support for Analog Devices AD5360, AD5361,
@@ -48,13 +50,6 @@ config AD5421
To compile this driver as module choose M here: the module will be called
ad5421.
-config AD5624R_SPI
- tristate "Analog Devices AD5624/44/64R DAC spi driver"
- depends on SPI
- help
- Say yes here to build support for Analog Devices AD5624R, AD5644R and
- AD5664R converters (DAC). This driver uses the common SPI interface.
-
config AD5446
tristate "Analog Devices AD5446 and similar single channel DACs driver"
depends on (SPI_MASTER && I2C!=m) || I2C
@@ -68,7 +63,7 @@ config AD5446
module will be called ad5446.
config AD5449
- tristate "Analog Device AD5449 and similar DACs driver"
+ tristate "Analog Devices AD5449 and similar DACs driver"
depends on SPI_MASTER
help
Say yes here to build support for Analog Devices AD5415, AD5426, AD5429,
@@ -87,6 +82,24 @@ config AD5504
To compile this driver as a module, choose M here: the
module will be called ad5504.
+config AD5624R_SPI
+ tristate "Analog Devices AD5624/44/64R DAC spi driver"
+ depends on SPI
+ help
+ Say yes here to build support for Analog Devices AD5624R, AD5644R and
+ AD5664R converters (DAC). This driver uses the common SPI interface.
+
+config AD5686
+ tristate "Analog Devices AD5686R/AD5685R/AD5684R DAC SPI driver"
+ depends on SPI
+ help
+ Say yes here to build support for Analog Devices AD5686R, AD5685R,
+ AD5684R, AD5791 Voltage Output Digital to
+ Analog Converter.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad5686.
+
config AD5755
tristate "Analog Devices AD5755/AD5755-1/AD5757/AD5735/AD5737 DAC driver"
depends on SPI_MASTER
@@ -119,19 +132,8 @@ config AD5791
To compile this driver as a module, choose M here: the
module will be called ad5791.
-config AD5686
- tristate "Analog Devices AD5686R/AD5685R/AD5684R DAC SPI driver"
- depends on SPI
- help
- Say yes here to build support for Analog Devices AD5686R, AD5685R,
- AD5684R, AD5791 Voltage Output Digital to
- Analog Converter.
-
- To compile this driver as a module, choose M here: the
- module will be called ad5686.
-
config AD7303
- tristate "Analog Devices Analog Devices AD7303 DAC driver"
+ tristate "Analog Devices AD7303 DAC driver"
depends on SPI
help
Say yes here to build support for Analog Devices AD7303 Digital to Analog
diff --git a/drivers/iio/dac/Makefile b/drivers/iio/dac/Makefile
index c8d7ab6bff0..bb84ad64463 100644
--- a/drivers/iio/dac/Makefile
+++ b/drivers/iio/dac/Makefile
@@ -2,6 +2,7 @@
# Makefile for industrial I/O DAC drivers
#
+# When adding new entries keep the list in alphabetical order
obj-$(CONFIG_AD5360) += ad5360.o
obj-$(CONFIG_AD5380) += ad5380.o
obj-$(CONFIG_AD5421) += ad5421.o
diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c
index aa26d50ab63..a3a52be4852 100644
--- a/drivers/iio/dac/ad5064.c
+++ b/drivers/iio/dac/ad5064.c
@@ -442,7 +442,7 @@ static int ad5064_probe(struct device *dev, enum ad5064_type type,
unsigned int i;
int ret;
- indio_dev = iio_device_alloc(sizeof(*st));
+ indio_dev = devm_iio_device_alloc(dev, sizeof(*st));
if (indio_dev == NULL)
return -ENOMEM;
@@ -456,23 +456,23 @@ static int ad5064_probe(struct device *dev, enum ad5064_type type,
for (i = 0; i < ad5064_num_vref(st); ++i)
st->vref_reg[i].supply = ad5064_vref_name(st, i);
- ret = regulator_bulk_get(dev, ad5064_num_vref(st),
+ ret = devm_regulator_bulk_get(dev, ad5064_num_vref(st),
st->vref_reg);
if (ret) {
if (!st->chip_info->internal_vref)
- goto error_free;
+ return ret;
st->use_internal_vref = true;
ret = ad5064_write(st, AD5064_CMD_CONFIG, 0,
AD5064_CONFIG_INT_VREF_ENABLE, 0);
if (ret) {
dev_err(dev, "Failed to enable internal vref: %d\n",
ret);
- goto error_free;
+ return ret;
}
} else {
ret = regulator_bulk_enable(ad5064_num_vref(st), st->vref_reg);
if (ret)
- goto error_free_reg;
+ return ret;
}
indio_dev->dev.parent = dev;
@@ -498,11 +498,6 @@ static int ad5064_probe(struct device *dev, enum ad5064_type type,
error_disable_reg:
if (!st->use_internal_vref)
regulator_bulk_disable(ad5064_num_vref(st), st->vref_reg);
-error_free_reg:
- if (!st->use_internal_vref)
- regulator_bulk_free(ad5064_num_vref(st), st->vref_reg);
-error_free:
- iio_device_free(indio_dev);
return ret;
}
@@ -514,12 +509,8 @@ static int ad5064_remove(struct device *dev)
iio_device_unregister(indio_dev);
- if (!st->use_internal_vref) {
+ if (!st->use_internal_vref)
regulator_bulk_disable(ad5064_num_vref(st), st->vref_reg);
- regulator_bulk_free(ad5064_num_vref(st), st->vref_reg);
- }
-
- iio_device_free(indio_dev);
return 0;
}
diff --git a/drivers/iio/dac/ad5360.c b/drivers/iio/dac/ad5360.c
index 80923af424f..d2da71ece74 100644
--- a/drivers/iio/dac/ad5360.c
+++ b/drivers/iio/dac/ad5360.c
@@ -459,7 +459,7 @@ static int ad5360_probe(struct spi_device *spi)
unsigned int i;
int ret;
- indio_dev = iio_device_alloc(sizeof(*st));
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (indio_dev == NULL) {
dev_err(&spi->dev, "Failed to allocate iio device\n");
return -ENOMEM;
@@ -480,13 +480,13 @@ static int ad5360_probe(struct spi_device *spi)
ret = ad5360_alloc_channels(indio_dev);
if (ret) {
dev_err(&spi->dev, "Failed to allocate channel spec: %d\n", ret);
- goto error_free;
+ return ret;
}
for (i = 0; i < st->chip_info->num_vrefs; ++i)
st->vref_reg[i].supply = ad5360_vref_name[i];
- ret = regulator_bulk_get(&st->spi->dev, st->chip_info->num_vrefs,
+ ret = devm_regulator_bulk_get(&st->spi->dev, st->chip_info->num_vrefs,
st->vref_reg);
if (ret) {
dev_err(&spi->dev, "Failed to request vref regulators: %d\n", ret);
@@ -496,7 +496,7 @@ static int ad5360_probe(struct spi_device *spi)
ret = regulator_bulk_enable(st->chip_info->num_vrefs, st->vref_reg);
if (ret) {
dev_err(&spi->dev, "Failed to enable vref regulators: %d\n", ret);
- goto error_free_reg;
+ goto error_free_channels;
}
ret = iio_device_register(indio_dev);
@@ -509,12 +509,8 @@ static int ad5360_probe(struct spi_device *spi)
error_disable_reg:
regulator_bulk_disable(st->chip_info->num_vrefs, st->vref_reg);
-error_free_reg:
- regulator_bulk_free(st->chip_info->num_vrefs, st->vref_reg);
error_free_channels:
kfree(indio_dev->channels);
-error_free:
- iio_device_free(indio_dev);
return ret;
}
@@ -529,9 +525,6 @@ static int ad5360_remove(struct spi_device *spi)
kfree(indio_dev->channels);
regulator_bulk_disable(st->chip_info->num_vrefs, st->vref_reg);
- regulator_bulk_free(st->chip_info->num_vrefs, st->vref_reg);
-
- iio_device_free(indio_dev);
return 0;
}
diff --git a/drivers/iio/dac/ad5380.c b/drivers/iio/dac/ad5380.c
index bf2db02215c..1c44ae3920e 100644
--- a/drivers/iio/dac/ad5380.c
+++ b/drivers/iio/dac/ad5380.c
@@ -369,11 +369,10 @@ static int ad5380_probe(struct device *dev, struct regmap *regmap,
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 +390,13 @@ static int 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)
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) {
@@ -434,13 +433,7 @@ 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;
}
@@ -456,11 +449,8 @@ static int 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;
}
diff --git a/drivers/iio/dac/ad5421.c b/drivers/iio/dac/ad5421.c
index 98f24407c3c..1f78b14abb7 100644
--- a/drivers/iio/dac/ad5421.c
+++ b/drivers/iio/dac/ad5421.c
@@ -451,7 +451,7 @@ static int ad5421_probe(struct spi_device *spi)
struct ad5421_state *st;
int ret;
- indio_dev = iio_device_alloc(sizeof(*st));
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (indio_dev == NULL) {
dev_err(&spi->dev, "Failed to allocate iio device\n");
return -ENOMEM;
@@ -484,31 +484,23 @@ static int ad5421_probe(struct spi_device *spi)
ad5421_update_ctrl(indio_dev, 0, 0);
if (spi->irq) {
- ret = request_threaded_irq(spi->irq,
+ ret = devm_request_threaded_irq(&spi->dev, spi->irq,
NULL,
ad5421_fault_handler,
IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
"ad5421 fault",
indio_dev);
if (ret)
- goto error_free;
+ return ret;
}
ret = iio_device_register(indio_dev);
if (ret) {
dev_err(&spi->dev, "Failed to register iio device: %d\n", ret);
- goto error_free_irq;
+ return ret;
}
return 0;
-
-error_free_irq:
- if (spi->irq)
- free_irq(spi->irq, indio_dev);
-error_free:
- iio_device_free(indio_dev);
-
- return ret;
}
static int ad5421_remove(struct spi_device *spi)
@@ -516,9 +508,6 @@ static int ad5421_remove(struct spi_device *spi)
struct iio_dev *indio_dev = spi_get_drvdata(spi);
iio_device_unregister(indio_dev);
- if (spi->irq)
- free_irq(spi->irq, indio_dev);
- iio_device_free(indio_dev);
return 0;
}
diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c
index cae8f6056ac..96e9ed4c2d0 100644
--- a/drivers/iio/dac/ad5446.c
+++ b/drivers/iio/dac/ad5446.c
@@ -220,11 +220,11 @@ static int ad5446_probe(struct device *dev, const char *name,
struct regulator *reg;
int ret, voltage_uv = 0;
- reg = regulator_get(dev, "vcc");
+ reg = devm_regulator_get(dev, "vcc");
if (!IS_ERR(reg)) {
ret = regulator_enable(reg);
if (ret)
- goto error_put_reg;
+ return ret;
ret = regulator_get_voltage(reg);
if (ret < 0)
@@ -233,7 +233,7 @@ static int ad5446_probe(struct device *dev, const char *name,
voltage_uv = ret;
}
- indio_dev = iio_device_alloc(sizeof(*st));
+ indio_dev = devm_iio_device_alloc(dev, sizeof(*st));
if (indio_dev == NULL) {
ret = -ENOMEM;
goto error_disable_reg;
@@ -264,19 +264,13 @@ static int ad5446_probe(struct device *dev, const char *name,
ret = iio_device_register(indio_dev);
if (ret)
- goto error_free_device;
+ goto error_disable_reg;
return 0;
-error_free_device:
- iio_device_free(indio_dev);
error_disable_reg:
if (!IS_ERR(reg))
regulator_disable(reg);
-error_put_reg:
- if (!IS_ERR(reg))
- regulator_put(reg);
-
return ret;
}
@@ -286,11 +280,8 @@ static int ad5446_remove(struct device *dev)
struct ad5446_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;
}
diff --git a/drivers/iio/dac/ad5449.c b/drivers/iio/dac/ad5449.c
index ba1c914b039..fff7d0762c0 100644
--- a/drivers/iio/dac/ad5449.c
+++ b/drivers/iio/dac/ad5449.c
@@ -275,7 +275,7 @@ static int ad5449_spi_probe(struct spi_device *spi)
unsigned int i;
int ret;
- indio_dev = iio_device_alloc(sizeof(*st));
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (indio_dev == NULL)
return -ENOMEM;
@@ -288,14 +288,14 @@ static int ad5449_spi_probe(struct spi_device *spi)
for (i = 0; i < st->chip_info->num_channels; ++i)
st->vref_reg[i].supply = ad5449_vref_name(st, i);
- ret = regulator_bulk_get(&spi->dev, st->chip_info->num_channels,
+ ret = devm_regulator_bulk_get(&spi->dev, st->chip_info->num_channels,
st->vref_reg);
if (ret)
- goto error_free;
+ return ret;
ret = regulator_bulk_enable(st->chip_info->num_channels, st->vref_reg);
if (ret)
- goto error_free_reg;
+ return ret;
indio_dev->dev.parent = &spi->dev;
indio_dev->name = id->name;
@@ -325,10 +325,6 @@ static int ad5449_spi_probe(struct spi_device *spi)
error_disable_reg:
regulator_bulk_disable(st->chip_info->num_channels, st->vref_reg);
-error_free_reg:
- regulator_bulk_free(st->chip_info->num_channels, st->vref_reg);
-error_free:
- iio_device_free(indio_dev);
return ret;
}
@@ -341,9 +337,6 @@ static int ad5449_spi_remove(struct spi_device *spi)
iio_device_unregister(indio_dev);
regulator_bulk_disable(st->chip_info->num_channels, st->vref_reg);
- regulator_bulk_free(st->chip_info->num_channels, st->vref_reg);
-
- iio_device_free(indio_dev);
return 0;
}
diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c
index 139206e84cb..caffb16bc05 100644
--- a/drivers/iio/dac/ad5504.c
+++ b/drivers/iio/dac/ad5504.c
@@ -281,16 +281,14 @@ static int ad5504_probe(struct spi_device *spi)
struct regulator *reg;
int ret, voltage_uv = 0;
- indio_dev = iio_device_alloc(sizeof(*st));
- if (indio_dev == NULL) {
- ret = -ENOMEM;
- goto error_ret;
- }
- reg = regulator_get(&spi->dev, "vcc");
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+ if (!indio_dev)
+ return -ENOMEM;
+ reg = devm_regulator_get(&spi->dev, "vcc");
if (!IS_ERR(reg)) {
ret = regulator_enable(reg);
if (ret)
- goto error_put_reg;
+ return ret;
ret = regulator_get_voltage(reg);
if (ret < 0)
@@ -321,7 +319,7 @@ static int ad5504_probe(struct spi_device *spi)
indio_dev->modes = INDIO_DIRECT_MODE;
if (spi->irq) {
- ret = request_threaded_irq(spi->irq,
+ ret = devm_request_threaded_irq(&spi->dev, spi->irq,
NULL,
&ad5504_event_handler,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
@@ -333,22 +331,14 @@ static int ad5504_probe(struct spi_device *spi)
ret = iio_device_register(indio_dev);
if (ret)
- goto error_free_irq;
+ goto error_disable_reg;
return 0;
-error_free_irq:
- if (spi->irq)
- free_irq(spi->irq, indio_dev);
error_disable_reg:
if (!IS_ERR(reg))
regulator_disable(reg);
-error_put_reg:
- if (!IS_ERR(reg))
- regulator_put(reg);
- iio_device_free(indio_dev);
-error_ret:
return ret;
}
@@ -358,14 +348,9 @@ static int ad5504_remove(struct spi_device *spi)
struct ad5504_state *st = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
- if (spi->irq)
- free_irq(spi->irq, 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;
}
diff --git a/drivers/iio/dac/ad5624r_spi.c b/drivers/iio/dac/ad5624r_spi.c
index bb298aaff32..714af757cd5 100644
--- a/drivers/iio/dac/ad5624r_spi.c
+++ b/drivers/iio/dac/ad5624r_spi.c
@@ -226,17 +226,15 @@ static int ad5624r_probe(struct spi_device *spi)
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;
ret = regulator_get_voltage(st->reg);
if (ret < 0)
@@ -277,11 +275,6 @@ static int 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;
}
@@ -292,11 +285,8 @@ static int ad5624r_remove(struct spi_device *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;
}
diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c
index 06439b1af9b..57825ead7db 100644
--- a/drivers/iio/dac/ad5686.c
+++ b/drivers/iio/dac/ad5686.c
@@ -314,18 +314,18 @@ static int ad5686_probe(struct spi_device *spi)
struct iio_dev *indio_dev;
int ret, regdone = 0, voltage_uv = 0;
- indio_dev = iio_device_alloc(sizeof(*st));
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (indio_dev == NULL)
return -ENOMEM;
st = iio_priv(indio_dev);
spi_set_drvdata(spi, 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;
ret = regulator_get_voltage(st->reg);
if (ret < 0)
@@ -369,12 +369,6 @@ static int ad5686_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);
-
return ret;
}
@@ -384,11 +378,8 @@ static int ad5686_remove(struct spi_device *spi)
struct ad5686_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;
}
diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c
index 12bb315e55f..36a4361aece 100644
--- a/drivers/iio/dac/ad5755.c
+++ b/drivers/iio/dac/ad5755.c
@@ -565,7 +565,7 @@ static int ad5755_probe(struct spi_device *spi)
struct ad5755_state *st;
int ret;
- indio_dev = iio_device_alloc(sizeof(*st));
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (indio_dev == NULL) {
dev_err(&spi->dev, "Failed to allocate iio device\n");
return -ENOMEM;
@@ -589,24 +589,19 @@ static int ad5755_probe(struct spi_device *spi)
ret = ad5755_init_channels(indio_dev, pdata);
if (ret)
- goto error_free;
+ return ret;
ret = ad5755_setup_pdata(indio_dev, pdata);
if (ret)
- goto error_free;
+ return ret;
ret = iio_device_register(indio_dev);
if (ret) {
dev_err(&spi->dev, "Failed to register iio device: %d\n", ret);
- goto error_free;
+ return ret;
}
return 0;
-
-error_free:
- iio_device_free(indio_dev);
-
- return ret;
}
static int ad5755_remove(struct spi_device *spi)
@@ -614,7 +609,6 @@ static int ad5755_remove(struct spi_device *spi)
struct iio_dev *indio_dev = spi_get_drvdata(spi);
iio_device_unregister(indio_dev);
- iio_device_free(indio_dev);
return 0;
}
diff --git a/drivers/iio/dac/ad5764.c b/drivers/iio/dac/ad5764.c
index 7a53f7d70da..df7e028d9db 100644
--- a/drivers/iio/dac/ad5764.c
+++ b/drivers/iio/dac/ad5764.c
@@ -275,7 +275,7 @@ static int ad5764_probe(struct spi_device *spi)
struct ad5764_state *st;
int ret;
- indio_dev = iio_device_alloc(sizeof(*st));
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (indio_dev == NULL) {
dev_err(&spi->dev, "Failed to allocate iio device\n");
return -ENOMEM;
@@ -298,12 +298,12 @@ static int ad5764_probe(struct spi_device *spi)
st->vref_reg[0].supply = "vrefAB";
st->vref_reg[1].supply = "vrefCD";
- ret = regulator_bulk_get(&st->spi->dev,
+ ret = devm_regulator_bulk_get(&st->spi->dev,
ARRAY_SIZE(st->vref_reg), st->vref_reg);
if (ret) {
dev_err(&spi->dev, "Failed to request vref regulators: %d\n",
ret);
- goto error_free;
+ return ret;
}
ret = regulator_bulk_enable(ARRAY_SIZE(st->vref_reg),
@@ -311,7 +311,7 @@ static int ad5764_probe(struct spi_device *spi)
if (ret) {
dev_err(&spi->dev, "Failed to enable vref regulators: %d\n",
ret);
- goto error_free_reg;
+ return ret;
}
}
@@ -326,12 +326,6 @@ static int ad5764_probe(struct spi_device *spi)
error_disable_reg:
if (st->chip_info->int_vref == 0)
regulator_bulk_disable(ARRAY_SIZE(st->vref_reg), st->vref_reg);
-error_free_reg:
- if (st->chip_info->int_vref == 0)
- regulator_bulk_free(ARRAY_SIZE(st->vref_reg), st->vref_reg);
-error_free:
- iio_device_free(indio_dev);
-
return ret;
}
@@ -342,12 +336,8 @@ static int ad5764_remove(struct spi_device *spi)
iio_device_unregister(indio_dev);
- if (st->chip_info->int_vref == 0) {
+ if (st->chip_info->int_vref == 0)
regulator_bulk_disable(ARRAY_SIZE(st->vref_reg), st->vref_reg);
- regulator_bulk_free(ARRAY_SIZE(st->vref_reg), st->vref_reg);
- }
-
- iio_device_free(indio_dev);
return 0;
}
diff --git a/drivers/iio/dac/ad5791.c b/drivers/iio/dac/ad5791.c
index 97c1e5d780d..ce745896330 100644
--- a/drivers/iio/dac/ad5791.c
+++ b/drivers/iio/dac/ad5791.c
@@ -349,17 +349,15 @@ static int ad5791_probe(struct spi_device *spi)
struct ad5791_state *st;
int ret, pos_voltage_uv = 0, neg_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_vdd = regulator_get(&spi->dev, "vdd");
+ st->reg_vdd = devm_regulator_get(&spi->dev, "vdd");
if (!IS_ERR(st->reg_vdd)) {
ret = regulator_enable(st->reg_vdd);
if (ret)
- goto error_put_reg_pos;
+ return ret;
ret = regulator_get_voltage(st->reg_vdd);
if (ret < 0)
@@ -368,11 +366,11 @@ static int ad5791_probe(struct spi_device *spi)
pos_voltage_uv = ret;
}
- st->reg_vss = regulator_get(&spi->dev, "vss");
+ st->reg_vss = devm_regulator_get(&spi->dev, "vss");
if (!IS_ERR(st->reg_vss)) {
ret = regulator_enable(st->reg_vss);
if (ret)
- goto error_put_reg_neg;
+ goto error_disable_reg_pos;
ret = regulator_get_voltage(st->reg_vss);
if (ret < 0)
@@ -428,19 +426,9 @@ static int ad5791_probe(struct spi_device *spi)
error_disable_reg_neg:
if (!IS_ERR(st->reg_vss))
regulator_disable(st->reg_vss);
-error_put_reg_neg:
- if (!IS_ERR(st->reg_vss))
- regulator_put(st->reg_vss);
-
error_disable_reg_pos:
if (!IS_ERR(st->reg_vdd))
regulator_disable(st->reg_vdd);
-error_put_reg_pos:
- if (!IS_ERR(st->reg_vdd))
- regulator_put(st->reg_vdd);
- iio_device_free(indio_dev);
-error_ret:
-
return ret;
}
@@ -450,16 +438,11 @@ static int ad5791_remove(struct spi_device *spi)
struct ad5791_state *st = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
- if (!IS_ERR(st->reg_vdd)) {
+ if (!IS_ERR(st->reg_vdd))
regulator_disable(st->reg_vdd);
- regulator_put(st->reg_vdd);
- }
- if (!IS_ERR(st->reg_vss)) {
+ if (!IS_ERR(st->reg_vss))
regulator_disable(st->reg_vss);
- regulator_put(st->reg_vss);
- }
- iio_device_free(indio_dev);
return 0;
}
diff --git a/drivers/iio/dac/ad7303.c b/drivers/iio/dac/ad7303.c
index d546f50f925..ed2d276477b 100644
--- a/drivers/iio/dac/ad7303.c
+++ b/drivers/iio/dac/ad7303.c
@@ -203,7 +203,7 @@ static int ad7303_probe(struct spi_device *spi)
bool ext_ref;
int ret;
- indio_dev = iio_device_alloc(sizeof(*st));
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (indio_dev == NULL)
return -ENOMEM;
@@ -212,15 +212,13 @@ static int ad7303_probe(struct spi_device *spi)
st->spi = spi;
- st->vdd_reg = regulator_get(&spi->dev, "Vdd");
- if (IS_ERR(st->vdd_reg)) {
- ret = PTR_ERR(st->vdd_reg);
- goto err_free;
- }
+ st->vdd_reg = devm_regulator_get(&spi->dev, "Vdd");
+ if (IS_ERR(st->vdd_reg))
+ return PTR_ERR(st->vdd_reg);
ret = regulator_enable(st->vdd_reg);
if (ret)
- goto err_put_vdd_reg;
+ return ret;
if (spi->dev.of_node) {
ext_ref = of_property_read_bool(spi->dev.of_node,
@@ -234,7 +232,7 @@ static int ad7303_probe(struct spi_device *spi)
}
if (ext_ref) {
- st->vref_reg = regulator_get(&spi->dev, "REF");
+ st->vref_reg = devm_regulator_get(&spi->dev, "REF");
if (IS_ERR(st->vref_reg)) {
ret = PTR_ERR(st->vref_reg);
goto err_disable_vdd_reg;
@@ -242,7 +240,7 @@ static int ad7303_probe(struct spi_device *spi)
ret = regulator_enable(st->vref_reg);
if (ret)
- goto err_put_vref_reg;
+ goto err_disable_vdd_reg;
st->config |= AD7303_CFG_EXTERNAL_VREF;
}
@@ -263,16 +261,8 @@ static int ad7303_probe(struct spi_device *spi)
err_disable_vref_reg:
if (st->vref_reg)
regulator_disable(st->vref_reg);
-err_put_vref_reg:
- if (st->vref_reg)
- regulator_put(st->vref_reg);
err_disable_vdd_reg:
regulator_disable(st->vdd_reg);
-err_put_vdd_reg:
- regulator_put(st->vdd_reg);
-err_free:
- iio_device_free(indio_dev);
-
return ret;
}
@@ -283,14 +273,9 @@ static int ad7303_remove(struct spi_device *spi)
iio_device_unregister(indio_dev);
- if (st->vref_reg) {
+ if (st->vref_reg)
regulator_disable(st->vref_reg);
- regulator_put(st->vref_reg);
- }
regulator_disable(st->vdd_reg);
- regulator_put(st->vdd_reg);
-
- iio_device_free(indio_dev);
return 0;
}
diff --git a/drivers/iio/dac/max517.c b/drivers/iio/dac/max517.c
index ebfaa415624..83adcbf1a20 100644
--- a/drivers/iio/dac/max517.c
+++ b/drivers/iio/dac/max517.c
@@ -164,11 +164,9 @@ static int max517_probe(struct i2c_client *client,
struct max517_platform_data *platform_data = client->dev.platform_data;
int err;
- indio_dev = iio_device_alloc(sizeof(*data));
- if (indio_dev == NULL) {
- err = -ENOMEM;
- goto exit;
- }
+ indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+ if (!indio_dev)
+ return -ENOMEM;
data = iio_priv(indio_dev);
i2c_set_clientdata(client, indio_dev);
data->client = client;
@@ -198,23 +196,16 @@ static int max517_probe(struct i2c_client *client,
err = iio_device_register(indio_dev);
if (err)
- goto exit_free_device;
+ return err;
dev_info(&client->dev, "DAC registered\n");
return 0;
-
-exit_free_device:
- iio_device_free(indio_dev);
-exit:
- return err;
}
static int max517_remove(struct i2c_client *client)
{
iio_device_unregister(i2c_get_clientdata(client));
- iio_device_free(i2c_get_clientdata(client));
-
return 0;
}
diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
index a612ec766d9..1f4a48e6a82 100644
--- a/drivers/iio/dac/mcp4725.c
+++ b/drivers/iio/dac/mcp4725.c
@@ -12,14 +12,13 @@
* driver for the Microchip I2C 12-bit digital-to-analog converter (DAC)
* (7-bit I2C slave address 0x60, the three LSBs can be configured in
* hardware)
- *
- * writing the DAC value to EEPROM is not supported
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/err.h>
+#include <linux/delay.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
@@ -32,15 +31,19 @@ struct mcp4725_data {
struct i2c_client *client;
u16 vref_mv;
u16 dac_value;
+ bool powerdown;
+ unsigned powerdown_mode;
};
-#ifdef CONFIG_PM_SLEEP
static int mcp4725_suspend(struct device *dev)
{
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct mcp4725_data *data = iio_priv(indio_dev);
u8 outbuf[2];
- outbuf[0] = 0x3 << 4; /* power-down bits, 500 kOhm resistor */
+ outbuf[0] = (data->powerdown_mode + 1) << 4;
outbuf[1] = 0;
+ data->powerdown = true;
return i2c_master_send(to_i2c_client(dev), outbuf, 2);
}
@@ -54,16 +57,150 @@ static int mcp4725_resume(struct device *dev)
/* restore previous DAC value */
outbuf[0] = (data->dac_value >> 8) & 0xf;
outbuf[1] = data->dac_value & 0xff;
+ data->powerdown = false;
return i2c_master_send(to_i2c_client(dev), outbuf, 2);
}
+#ifdef CONFIG_PM_SLEEP
static SIMPLE_DEV_PM_OPS(mcp4725_pm_ops, mcp4725_suspend, mcp4725_resume);
#define MCP4725_PM_OPS (&mcp4725_pm_ops)
#else
#define MCP4725_PM_OPS NULL
#endif
+static ssize_t mcp4725_store_eeprom(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t len)
+{
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct mcp4725_data *data = iio_priv(indio_dev);
+ int tries = 20;
+ u8 inoutbuf[3];
+ bool state;
+ int ret;
+
+ ret = strtobool(buf, &state);
+ if (ret < 0)
+ return ret;
+
+ if (!state)
+ return 0;
+
+ inoutbuf[0] = 0x60; /* write EEPROM */
+ inoutbuf[1] = data->dac_value >> 4;
+ inoutbuf[2] = (data->dac_value & 0xf) << 4;
+
+ ret = i2c_master_send(data->client, inoutbuf, 3);
+ if (ret < 0)
+ return ret;
+ else if (ret != 3)
+ return -EIO;
+
+ /* wait for write complete, takes up to 50ms */
+ while (tries--) {
+ msleep(20);
+ ret = i2c_master_recv(data->client, inoutbuf, 3);
+ if (ret < 0)
+ return ret;
+ else if (ret != 3)
+ return -EIO;
+
+ if (inoutbuf[0] & 0x80)
+ break;
+ }
+
+ if (tries < 0) {
+ dev_err(&data->client->dev,
+ "mcp4725_store_eeprom() failed, incomplete\n");
+ return -EIO;
+ }
+
+ return len;
+}
+
+static IIO_DEVICE_ATTR(store_eeprom, S_IWUSR, NULL, mcp4725_store_eeprom, 0);
+
+static struct attribute *mcp4725_attributes[] = {
+ &iio_dev_attr_store_eeprom.dev_attr.attr,
+ NULL,
+};
+
+static const struct attribute_group mcp4725_attribute_group = {
+ .attrs = mcp4725_attributes,
+};
+
+static const char * const mcp4725_powerdown_modes[] = {
+ "1kohm_to_gnd",
+ "100kohm_to_gnd",
+ "500kohm_to_gnd"
+};
+
+static int mcp4725_get_powerdown_mode(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan)
+{
+ struct mcp4725_data *data = iio_priv(indio_dev);
+
+ return data->powerdown_mode;
+}
+
+static int mcp4725_set_powerdown_mode(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan, unsigned mode)
+{
+ struct mcp4725_data *data = iio_priv(indio_dev);
+
+ data->powerdown_mode = mode;
+
+ return 0;
+}
+
+static ssize_t mcp4725_read_powerdown(struct iio_dev *indio_dev,
+ uintptr_t private, const struct iio_chan_spec *chan, char *buf)
+{
+ struct mcp4725_data *data = iio_priv(indio_dev);
+
+ return sprintf(buf, "%d\n", data->powerdown);
+}
+
+static ssize_t mcp4725_write_powerdown(struct iio_dev *indio_dev,
+ uintptr_t private, const struct iio_chan_spec *chan,
+ const char *buf, size_t len)
+{
+ struct mcp4725_data *data = iio_priv(indio_dev);
+ bool state;
+ int ret;
+
+ ret = strtobool(buf, &state);
+ if (ret)
+ return ret;
+
+ if (state)
+ ret = mcp4725_suspend(&data->client->dev);
+ else
+ ret = mcp4725_resume(&data->client->dev);
+ if (ret < 0)
+ return ret;
+
+ return len;
+}
+
+static const struct iio_enum mcp4725_powerdown_mode_enum = {
+ .items = mcp4725_powerdown_modes,
+ .num_items = ARRAY_SIZE(mcp4725_powerdown_modes),
+ .get = mcp4725_get_powerdown_mode,
+ .set = mcp4725_set_powerdown_mode,
+};
+
+static const struct iio_chan_spec_ext_info mcp4725_ext_info[] = {
+ {
+ .name = "powerdown",
+ .read = mcp4725_read_powerdown,
+ .write = mcp4725_write_powerdown,
+ },
+ IIO_ENUM("powerdown_mode", false, &mcp4725_powerdown_mode_enum),
+ IIO_ENUM_AVAILABLE("powerdown_mode", &mcp4725_powerdown_mode_enum),
+ { },
+};
+
static const struct iio_chan_spec mcp4725_channel = {
.type = IIO_VOLTAGE,
.indexed = 1,
@@ -72,6 +209,7 @@ static const struct iio_chan_spec mcp4725_channel = {
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
.scan_type = IIO_ST('u', 12, 16, 0),
+ .ext_info = mcp4725_ext_info,
};
static int mcp4725_set_value(struct iio_dev *indio_dev, int val)
@@ -138,6 +276,7 @@ static int mcp4725_write_raw(struct iio_dev *indio_dev,
static const struct iio_info mcp4725_info = {
.read_raw = mcp4725_read_raw,
.write_raw = mcp4725_write_raw,
+ .attrs = &mcp4725_attribute_group,
.driver_module = THIS_MODULE,
};
@@ -148,19 +287,17 @@ static int mcp4725_probe(struct i2c_client *client,
struct iio_dev *indio_dev;
struct mcp4725_platform_data *platform_data = client->dev.platform_data;
u8 inbuf[3];
+ u8 pd;
int err;
if (!platform_data || !platform_data->vref_mv) {
dev_err(&client->dev, "invalid platform data");
- err = -EINVAL;
- goto exit;
+ return -EINVAL;
}
- indio_dev = iio_device_alloc(sizeof(*data));
- if (indio_dev == NULL) {
- err = -ENOMEM;
- goto exit;
- }
+ indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+ if (indio_dev == NULL)
+ return -ENOMEM;
data = iio_priv(indio_dev);
i2c_set_clientdata(client, indio_dev);
data->client = client;
@@ -177,31 +314,25 @@ static int mcp4725_probe(struct i2c_client *client,
err = i2c_master_recv(client, inbuf, 3);
if (err < 0) {
dev_err(&client->dev, "failed to read DAC value");
- goto exit_free_device;
+ return err;
}
+ pd = (inbuf[0] >> 1) & 0x3;
+ data->powerdown = pd > 0 ? true : false;
+ 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)
- goto exit_free_device;
+ return err;
dev_info(&client->dev, "MCP4725 DAC registered\n");
return 0;
-
-exit_free_device:
- iio_device_free(indio_dev);
-exit:
- return err;
}
static int mcp4725_remove(struct i2c_client *client)
{
- struct iio_dev *indio_dev = i2c_get_clientdata(client);
-
- iio_device_unregister(indio_dev);
- iio_device_free(indio_dev);
-
+ iio_device_unregister(i2c_get_clientdata(client));
return 0;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-15 22:41:31 +0000