iio: Add OF support

Provide bindings and parse OF data during initialization.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 8848f16c547b..6d8b02785647 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -847,7 +847,7 @@ static void iio_dev_release(struct device *device)
         kfree(indio_dev);
 }
 
-static struct device_type iio_dev_type = {
+struct device_type iio_device_type = {
         .name = "iio_device",
         .release = iio_dev_release,
 };
@@ -869,7 +869,7 @@ struct iio_dev *iio_device_alloc(int sizeof_priv)
 
         if (dev) {
                 dev->dev.groups = dev->groups;
-                dev->dev.type = &iio_dev_type;
+                dev->dev.type = &iio_device_type;
                 dev->dev.bus = &iio_bus_type;
                 device_initialize(&dev->dev);
                 dev_set_drvdata(&dev->dev, (void *)dev);
@@ -960,6 +960,10 @@ int iio_device_register(struct iio_dev *indio_dev)
 {
         int ret;
 
+        /* If the calling driver did not initialize of_node, do it here */
+        if (!indio_dev->dev.of_node && indio_dev->dev.parent)
+                indio_dev->dev.of_node = indio_dev->dev.parent->of_node;
+
         /* configure elements for the chrdev */
         indio_dev->dev.devt = MKDEV(MAJOR(iio_devt), indio_dev->id);