On Wednesday, February 13, 2019 12:55:49 PM CET Heikki Krogerus wrote:
> This makes it possible to support drivers that use
> fwnode_get_named_child_node() and device_get_named_child_node()
> functions.
>
> The node name is for now taken from a device property named
> "name". That mimics the old style of naming of the nodes in
> devicetree (though with modern flattened DT, the name is
> matched against the actual node-name, it used to be done
> with a property "name"). In Open Firmware DT the "name"
> property is also still being used.
>
> Signed-off-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
> ---
> drivers/base/swnode.c | 23 +++++++++++++++++++++++
> 1 file changed, 23 insertions(+)
>
> diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
> index 89ad8dee6ad5..1fad9291f6aa 100644
> --- a/drivers/base/swnode.c
> +++ b/drivers/base/swnode.c
> @@ -499,6 +499,28 @@ software_node_get_next_child(const struct fwnode_handle *fwnode,
> return &c->fwnode;
> }
>
> +static struct fwnode_handle *
> +software_node_get_named_child_node(const struct fwnode_handle *fwnode,
> + const char *childname)
> +{
> + struct software_node *swnode = to_software_node(fwnode);
> + const struct property_entry *prop;
> + struct software_node *child;
> +
> + if (!swnode || list_empty(&swnode->children))
> + return NULL;
> +
> + list_for_each_entry(child, &swnode->children, entry) {
> + prop = property_entry_get(child->properties, "name");
> + if (!prop)
> + continue;
> + if (!strcmp(childname, prop->value.str)) {
> + kobject_get(&child->kobj);
> + return &child->fwnode;
> + }
> + }
> + return NULL;
> +}
>
> static const struct fwnode_operations software_node_ops = {
> .get = software_node_get,
> @@ -508,6 +530,7 @@ static const struct fwnode_operations software_node_ops = {
> .property_read_string_array = software_node_read_string_array,
> .get_parent = software_node_get_parent,
> .get_next_child_node = software_node_get_next_child,
> + .get_named_child_node = software_node_get_named_child_node,
> };
>
> /* -------------------------------------------------------------------------- */
>
Applied, thanks!
