Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 954e04b9 authored by Bryan Wu's avatar Bryan Wu
Browse files

of: introduce of_get_available_child_count 



Some drivers keep counting available child by themselves. So
introduce a new simple API like of_get_child_count() but for
available childs.

Cc: Josh Wu <josh.wu@atmel.com>
Signed-off-by: default avatarBryan Wu <cooloney@gmail.com>
Acked-by: default avatarRob Herring <rob.herring@calxeda.com>
parent bb6febdc

include/linux/of.h

+16 −0
Original line number Diff line number Diff line
@@ -226,6 +226,17 @@ static inline int of_get_child_count(const struct device_node *np) 
	return num;

}



static inline int of_get_available_child_count(const struct device_node *np)

{

	struct device_node *child;

	int num = 0;



	for_each_available_child_of_node(np, child)

		num++;



	return num;

}



extern struct device_node *of_find_node_with_property(

	struct device_node *from, const char *prop_name);

#define for_each_node_with_property(dn, prop_name) \
@@ -376,6 +387,11 @@ static inline int of_get_child_count(const struct device_node *np) 
	return 0;

}



static inline int of_get_available_child_count(const struct device_node *np)

{

	return 0;

}



static inline int of_device_is_compatible(const struct device_node *device,

					  const char *name)

{