of_graph_get_port_by_id doesn't modify the device_node pointer it takes as argument, so we can make it const.
Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/of/property.c | 2 +- include/linux/of_graph.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/of/property.c b/drivers/of/property.c index 8e90071de6ed..8ad0ce5c87f3 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -603,7 +603,7 @@ EXPORT_SYMBOL(of_graph_parse_endpoint); * Return: A 'port' node pointer with refcount incremented. The caller * has to use of_node_put() on it when done. */ -struct device_node *of_graph_get_port_by_id(struct device_node *parent, u32 id) +struct device_node *of_graph_get_port_by_id(const struct device_node *parent, u32 id) { struct device_node *node, *port;
diff --git a/include/linux/of_graph.h b/include/linux/of_graph.h index 4d7756087b6b..87f3f4d0d0df 100644 --- a/include/linux/of_graph.h +++ b/include/linux/of_graph.h @@ -42,7 +42,7 @@ bool of_graph_is_present(const struct device_node *node); int of_graph_parse_endpoint(const struct device_node *node, struct of_endpoint *endpoint); int of_graph_get_endpoint_count(const struct device_node *np); -struct device_node *of_graph_get_port_by_id(struct device_node *node, u32 id); +struct device_node *of_graph_get_port_by_id(const struct device_node *node, u32 id); struct device_node *of_graph_get_next_endpoint(const struct device_node *parent, struct device_node *previous); struct device_node *of_graph_get_endpoint_by_regs( @@ -74,7 +74,7 @@ static inline int of_graph_get_endpoint_count(const struct device_node *np) }
static inline struct device_node *of_graph_get_port_by_id( - struct device_node *node, u32 id) + const struct device_node *node, u32 id) { return NULL; }