diff options
| -rw-r--r-- | drivers/base/swnode.c | 23 | ||||
| -rw-r--r-- | include/linux/property.h | 2 |
2 files changed, 24 insertions, 1 deletions
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, }; /* -------------------------------------------------------------------------- */ diff --git a/include/linux/property.h b/include/linux/property.h index 3789ec755fb6..65d3420dd5d1 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -258,7 +258,7 @@ struct property_entry { #define PROPERTY_ENTRY_STRING(_name_, _val_) \ (struct property_entry) { \ .name = _name_, \ - .length = sizeof(_val_), \ + .length = sizeof(const char *), \ .type = DEV_PROP_STRING, \ { .value = { .str = _val_ } }, \ } |