@@ -1073,6 +1073,26 @@ int of_changeset_add_prop_bool(struct of_changeset *ocs, struct device_node *np,
}
EXPORT_SYMBOL_GPL(of_changeset_add_prop_bool);
+/**
+ * of_changeset_add_prop_copy() - Add a property with name and value copied
+ * from an existing property, to a changeset.
+ *
+ * @ocs: changeset pointer
+ * @np: device node pointer
+ * @prop: existing property to copy
+ *
+ * Create a new property with name and value copied from a provided property,
+ * to a changeset.
+ *
+ * Return: 0 on success, a negative error value in case of an error.
+ */
+int of_changeset_add_prop_copy(struct of_changeset *ocs, struct device_node *np,
+ const struct property *prop)
+{
+ return of_changeset_add_prop_helper(ocs, np, prop);
+}
+EXPORT_SYMBOL_GPL(of_changeset_add_prop_copy);
+
static int of_changeset_update_prop_helper(struct of_changeset *ocs,
struct device_node *np,
const struct property *pp)
@@ -1667,6 +1667,9 @@ int of_changeset_update_prop_string(struct of_changeset *ocs,
int of_changeset_add_prop_bool(struct of_changeset *ocs, struct device_node *np,
const char *prop_name);
+int of_changeset_add_prop_copy(struct of_changeset *ocs, struct device_node *np,
+ const struct property *prop);
+
#else /* CONFIG_OF_DYNAMIC */
static inline int of_reconfig_notifier_register(struct notifier_block *nb)
{
When implementing migration between bindings with different structure, properties might move from one node to another. Introduce a helper function to do this, releaving the caller from having to care about the datatype of the property and/or peek into the struct property. Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com> --- drivers/of/dynamic.c | 20 ++++++++++++++++++++ include/linux/of.h | 3 +++ 2 files changed, 23 insertions(+)