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authorSakari Ailus <sakari.ailus@linux.intel.com>2017-03-28 10:52:22 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-03-29 00:00:28 +0200
commite7887c284969a23a98fe1aff2f631c5ccdcd1757 (patch)
treeb0e8e433d7d97eb4c05b5dbaad451efc58544195 /drivers/base
parent07bb80d40b0e6a43aafb422296d33baed255569a (diff)
downloadlinux-e7887c284969a23a98fe1aff2f631c5ccdcd1757.tar.bz2
device property: Add fwnode_handle_get()
fwnode_handle_get() is used to obtain a reference to a fwnode_handle container. In this case this is OF specific struct device_node. This complements fwnode_handle_put() which is already implemented. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/property.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/base/property.c b/drivers/base/property.c
index 4e98a6fad33f..23514bf67933 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -1041,6 +1041,17 @@ struct fwnode_handle *device_get_named_child_node(struct device *dev,
EXPORT_SYMBOL_GPL(device_get_named_child_node);
/**
+ * fwnode_handle_get - Obtain a reference to a device node
+ * @fwnode: Pointer to the device node to obtain the reference to.
+ */
+void fwnode_handle_get(struct fwnode_handle *fwnode)
+{
+ if (is_of_node(fwnode))
+ of_node_get(to_of_node(fwnode));
+}
+EXPORT_SYMBOL_GPL(fwnode_handle_get);
+
+/**
* fwnode_handle_put - Drop reference to a device node
* @fwnode: Pointer to the device node to drop the reference to.
*