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path: root/drivers/staging/iio/dac/ad5446.c
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Diffstat (limited to 'drivers/staging/iio/dac/ad5446.c')
-rw-r--r--drivers/staging/iio/dac/ad5446.c35
1 files changed, 11 insertions, 24 deletions
diff --git a/drivers/staging/iio/dac/ad5446.c b/drivers/staging/iio/dac/ad5446.c
index 693e7482524c..633ffbb21814 100644
--- a/drivers/staging/iio/dac/ad5446.c
+++ b/drivers/staging/iio/dac/ad5446.c
@@ -149,30 +149,8 @@ static struct attribute *ad5446_attributes[] = {
NULL,
};
-static umode_t ad5446_attr_is_visible(struct kobject *kobj,
- struct attribute *attr, int n)
-{
- struct device *dev = container_of(kobj, struct device, kobj);
- struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5446_state *st = iio_priv(indio_dev);
-
- umode_t mode = attr->mode;
-
- if (!st->chip_info->store_pwr_down &&
- (attr == &iio_dev_attr_out_voltage0_powerdown.dev_attr.attr ||
- attr == &iio_dev_attr_out_voltage_powerdown_mode.
- dev_attr.attr ||
- attr ==
- &iio_const_attr_out_voltage_powerdown_mode_available.
- dev_attr.attr))
- mode = 0;
-
- return mode;
-}
-
static const struct attribute_group ad5446_attribute_group = {
.attrs = ad5446_attributes,
- .is_visible = ad5446_attr_is_visible,
};
#define AD5446_CHANNEL(bits, storage, shift) { \
@@ -321,6 +299,12 @@ static const struct iio_info ad5446_info = {
.driver_module = THIS_MODULE,
};
+static const struct iio_info ad5446_info_no_pwr_down = {
+ .read_raw = ad5446_read_raw,
+ .write_raw = ad5446_write_raw,
+ .driver_module = THIS_MODULE,
+};
+
static int __devinit ad5446_probe(struct spi_device *spi)
{
struct ad5446_state *st;
@@ -350,10 +334,13 @@ static int __devinit ad5446_probe(struct spi_device *spi)
st->reg = reg;
st->spi = spi;
- /* Estabilish that the iio_dev is a child of the spi device */
+ /* Establish that the iio_dev is a child of the spi device */
indio_dev->dev.parent = &spi->dev;
indio_dev->name = spi_get_device_id(spi)->name;
- indio_dev->info = &ad5446_info;
+ if (st->chip_info->store_pwr_down)
+ indio_dev->info = &ad5446_info;
+ else
+ indio_dev->info = &ad5446_info_no_pwr_down;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->channels = &st->chip_info->channel;
indio_dev->num_channels = 1;