staging:iio: implement an iio_info structure to take some of the constant elements out of iio_dev.

This was suggested by Arnd Bergmann,  Other elements may well
move in here in future, but it definitely makes sense for these.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

3 files changed, 18 insertions, 13 deletions

diff --git a/drivers/staging/iio/resolver/ad2s120x.c b/drivers/staging/iio/resolver/ad2s120x.c
index e0237ff81054..f83e1422fd29 100644
--- a/drivers/staging/iio/resolver/ad2s120x.c
+++ b/drivers/staging/iio/resolver/ad2s120x.c
@@ -209,10 +209,14 @@ static struct attribute *ad2s120x_attributes[] = {
 };
 
 static const struct attribute_group ad2s120x_attribute_group = {
-	.name = DRV_NAME,
 	.attrs = ad2s120x_attributes,
 };
 
+static const struct iio_info ad2s120x_info = {
+	.attrs = &ad2s120x_attribute_group,
+	.driver_module = THIS_MODULE,
+};
+
 static int __devinit ad2s120x_probe(struct spi_device *spi)
 {
 	struct ad2s120x_state *st;
@@ -246,12 +250,9 @@ static int __devinit ad2s120x_probe(struct spi_device *spi)
 		goto error_free_st;
 	}
 	st->idev->dev.parent = &spi->dev;
-	st->idev->num_interrupt_lines = 0;
-	st->idev->event_attrs = NULL;
 
-	st->idev->attrs = &ad2s120x_attribute_group;
+	st->idev->info = &ad2s120x_info;
 	st->idev->dev_data = (void *)(st);
-	st->idev->driver_module = THIS_MODULE;
 	st->idev->modes = INDIO_DIRECT_MODE;
 
 	ret = iio_device_register(st->idev);
diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index dc7cae80cf3a..09f4fcfda73a 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -755,6 +755,11 @@ error_ret:
 	return ret;
 }
 
+static const struct iio_info ad2s1210_info = {
+	.attrs = &ad2s1210_attribute_group,
+	.driver_module = THIS_MODULE,
+};
+
 static int __devinit ad2s1210_probe(struct spi_device *spi)
 {
 	struct ad2s1210_state *st;
@@ -806,12 +811,9 @@ static int __devinit ad2s1210_probe(struct spi_device *spi)
 		goto error_free_st;
 	}
 	st->idev->dev.parent = &spi->dev;
-	st->idev->num_interrupt_lines = 0;
-	st->idev->event_attrs = NULL;
 
-	st->idev->attrs = &ad2s1210_attribute_group;
+	st->idev->info = &ad2s1210_info;
 	st->idev->dev_data = (void *)(st);
-	st->idev->driver_module = THIS_MODULE;
 	st->idev->modes = INDIO_DIRECT_MODE;
 
 	ret = iio_device_register(st->idev);
diff --git a/drivers/staging/iio/resolver/ad2s90.c b/drivers/staging/iio/resolver/ad2s90.c
index e300adeefa8b..9b72a952f2bc 100644
--- a/drivers/staging/iio/resolver/ad2s90.c
+++ b/drivers/staging/iio/resolver/ad2s90.c
@@ -75,6 +75,11 @@ static const struct attribute_group ad2s90_attribute_group = {
 	.attrs = ad2s90_attributes,
 };
 
+static const struct iio_info ad2s90_info = {
+	.attrs = &ad2s90_attribute_group,
+	.driver_module = THIS_MODULE,
+};
+
 static int __devinit ad2s90_probe(struct spi_device *spi)
 {
 	struct ad2s90_state *st;
@@ -96,12 +101,9 @@ static int __devinit ad2s90_probe(struct spi_device *spi)
 		goto error_free_st;
 	}
 	st->idev->dev.parent = &spi->dev;
-	st->idev->num_interrupt_lines = 0;
-	st->idev->event_attrs = NULL;
 
-	st->idev->attrs = &ad2s90_attribute_group;
+	st->idev->info = &ad2s90_info;
 	st->idev->dev_data = (void *)(st);
-	st->idev->driver_module = THIS_MODULE;
 	st->idev->modes = INDIO_DIRECT_MODE;
 
 	ret = iio_device_register(st->idev);