of: implement of_get_stdoutpath()

For deep probe support it will be useful to have a function to
get the node corresponding to the stdoutpath. of_device_is_stdout_path()
already has that functionality in it, so make a separate funcion from
it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.barebox.org/20210625072540.32717-8-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/of.h b/include/of.h
index 84d6e9b682..3bce92e848 100644
--- a/include/of.h
+++ b/include/of.h
@@ -281,6 +281,7 @@ struct cdev *of_parse_partition(struct cdev *cdev, struct device_node *node);
 int of_parse_partitions(struct cdev *cdev, struct device_node *node);
 int of_fixup_partitions(struct device_node *np, struct cdev *cdev);
 int of_partitions_register_fixup(struct cdev *cdev);
+struct device_node *of_get_stdoutpath(void);
 int of_device_is_stdout_path(struct device_d *dev);
 const char *of_get_model(void);
 void *of_flatten_dtb(struct device_node *node);
@@ -318,6 +319,11 @@ static inline int of_partitions_register_fixup(struct cdev *cdev)
 	return -ENOSYS;
 }
 
+static inline struct device_node *of_get_stdoutpath(void)
+{
+	return NULL;
+}
+
 static inline int of_device_is_stdout_path(struct device_d *dev)
 {
 	return 0;