From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bryan Wu Subject: [PATCH] of: introduce of_get_available_child_count Date: Tue, 24 Sep 2013 10:50:09 -0700 Message-ID: <1380045009-21149-1-git-send-email-cooloney@gmail.com> Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, josh.wu-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org, cooloney-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org List-Id: devicetree@vger.kernel.org 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 Signed-off-by: Bryan Wu --- include/linux/of.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/include/linux/of.h b/include/linux/of.h index f95aee3..54c2560 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -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) { -- 1.8.1.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html