From: Dmitry Torokhov <dtor@xxxxxxxxxxxx>
Generic code that works with ACPI, device tree, and pset properties may
want to fetch named child node of fwnode_handle.
Signed-off-by: Dmitry Torokhov <dtor@xxxxxxxxxxxx>
Signed-off-by: Furquan Shaikh <furquan@xxxxxxxxxxxx>
---
drivers/base/property.c | 45 +++++++++++++++++++++++++++++----------------
include/linux/fwnode.h | 3 +++
2 files changed, 32 insertions(+), 16 deletions(-)
diff --git a/drivers/base/property.c b/drivers/base/property.c
index fbb05a4a7595..3556c9fbdbf7 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -889,23 +889,11 @@ struct fwnode_handle *fwnode_get_next_child_node(struct fwnode_handle *node,
EXPORT_SYMBOL_GPL(fwnode_get_next_child_node);
/**
- * device_get_next_child_node - Return the next child node handle for a device
- * @dev: Device to find the next child node for.
- * @child: Handle to one of the device's child nodes or a null handle.
- */
-struct fwnode_handle *device_get_next_child_node(struct device *dev,
- struct fwnode_handle *child)
-{
- return fwnode_get_next_child_node(dev_fwnode(dev), child);
-}
-EXPORT_SYMBOL_GPL(device_get_next_child_node);
-
-/**
- * device_get_named_child_node - Return first matching named child node handle
- * @dev: Device to find the named child node for.
+ * fwnode_get_named_child_node - Return first matching named child node handle
+ * @node: Node to find the named child node for.
* @childname: String to match child node name against.
*/
-struct fwnode_handle *device_get_named_child_node(struct device *dev,
+struct fwnode_handle *fwnode_get_named_child_node(struct fwnode_handle *node,
const char *childname)
{
struct fwnode_handle *child;
@@ -914,7 +902,7 @@ struct fwnode_handle *device_get_named_child_node(struct device *dev,
* Find first matching named child node of this device.
* For ACPI this will be a data only sub-node.
*/
- device_for_each_child_node(dev, child) {
+ fwnode_for_each_child_node(node, child) {
if (is_of_node(child)) {
if (!of_node_cmp(to_of_node(child)->name, childname))
return child;
@@ -926,6 +914,31 @@ struct fwnode_handle *device_get_named_child_node(struct device *dev,
return NULL;
}
+EXPORT_SYMBOL_GPL(fwnode_get_named_child_node);
+
+
+/**
+ * device_get_next_child_node - Return the next child node handle for a device
+ * @dev: Device to find the next child node for.
+ * @child: Handle to one of the device's child nodes or a null handle.
+ */
+struct fwnode_handle *device_get_next_child_node(struct device *dev,
+ struct fwnode_handle *child)
+{
+ return fwnode_get_next_child_node(dev_fwnode(dev), child);
+}
+EXPORT_SYMBOL_GPL(device_get_next_child_node);
+
+/**
+ * device_get_named_child_node - Return first matching named child node handle
+ * @dev: Device to find the named child node for.
+ * @childname: String to match child node name against.
+ */
+struct fwnode_handle *device_get_named_child_node(struct device *dev,
+ const char *childname)
+{
+ return fwnode_get_named_child_node(dev_fwnode(dev), childname);
+}
EXPORT_SYMBOL_GPL(device_get_named_child_node);
/**
diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index b4efe2a088ae..d501e0b967bd 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -34,4 +34,7 @@ struct fwnode_handle *fwnode_get_next_child_node(struct fwnode_handle *node,
for (child = fwnode_get_next_child_node(node, NULL); child; \
child = fwnode_get_next_child_node(node, child))
+struct fwnode_handle *fwnode_get_named_child_node(struct fwnode_handle *node,
+ const char *childname);
+
#endif
--
2.11.0.483.g087da7b7c-goog
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