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path: root/drivers/staging/iio/dds/ad9850.c
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Diffstat (limited to 'drivers/staging/iio/dds/ad9850.c')
-rw-r--r--drivers/staging/iio/dds/ad9850.c39
1 files changed, 14 insertions, 25 deletions
diff --git a/drivers/staging/iio/dds/ad9850.c b/drivers/staging/iio/dds/ad9850.c
index b580d85..a14771b 100644
--- a/drivers/staging/iio/dds/ad9850.c
+++ b/drivers/staging/iio/dds/ad9850.c
@@ -14,6 +14,7 @@
#include <linux/spi/spi.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
+#include <linux/module.h>
#include "../iio.h"
#include "../sysfs.h"
@@ -30,7 +31,6 @@ struct ad9850_config {
struct ad9850_state {
struct mutex lock;
- struct iio_dev *idev;
struct spi_device *sdev;
};
@@ -44,7 +44,7 @@ static ssize_t ad9850_set_parameter(struct device *dev,
int ret;
struct ad9850_config *config = (struct ad9850_config *)buf;
struct iio_dev *idev = dev_get_drvdata(dev);
- struct ad9850_state *st = idev->dev_data;
+ struct ad9850_state *st = iio_priv(idev);
xfer.len = len;
xfer.tx_buf = config;
@@ -69,7 +69,6 @@ static struct attribute *ad9850_attributes[] = {
};
static const struct attribute_group ad9850_attribute_group = {
- .name = DRV_NAME,
.attrs = ad9850_attributes,
};
@@ -81,30 +80,24 @@ static const struct iio_info ad9850_info = {
static int __devinit ad9850_probe(struct spi_device *spi)
{
struct ad9850_state *st;
+ struct iio_dev *idev;
int ret = 0;
- st = kzalloc(sizeof(*st), GFP_KERNEL);
- if (st == NULL) {
+ idev = iio_allocate_device(sizeof(*st));
+ if (idev == NULL) {
ret = -ENOMEM;
goto error_ret;
}
- spi_set_drvdata(spi, st);
-
+ spi_set_drvdata(spi, idev);
+ st = iio_priv(idev);
mutex_init(&st->lock);
st->sdev = spi;
- st->idev = iio_allocate_device(0);
- if (st->idev == NULL) {
- ret = -ENOMEM;
- goto error_free_st;
- }
- st->idev->dev.parent = &spi->dev;
-
- st->idev->info = &ad9850_info;
- st->idev->dev_data = (void *)(st);
- st->idev->modes = INDIO_DIRECT_MODE;
+ idev->dev.parent = &spi->dev;
+ idev->info = &ad9850_info;
+ idev->modes = INDIO_DIRECT_MODE;
- ret = iio_device_register(st->idev);
+ ret = iio_device_register(idev);
if (ret)
goto error_free_dev;
spi->max_speed_hz = 2000000;
@@ -115,19 +108,15 @@ static int __devinit ad9850_probe(struct spi_device *spi)
return 0;
error_free_dev:
- iio_free_device(st->idev);
-error_free_st:
- kfree(st);
+ iio_free_device(idev);
error_ret:
return ret;
}
static int __devexit ad9850_remove(struct spi_device *spi)
{
- struct ad9850_state *st = spi_get_drvdata(spi);
-
- iio_device_unregister(st->idev);
- kfree(st);
+ iio_device_unregister(spi_get_drvdata(spi));
+ iio_free_device(spi_get_drvdata(spi));
return 0;
}