On Tue, Sep 24, 2013 at 2:22 PM, Bryan Wu <cooloney@xxxxxxxxx> wrote: > On Tue, Sep 24, 2013 at 2:16 PM, Rob Herring <robherring2@xxxxxxxxx> wrote: >> On 09/24/2013 12:50 PM, Bryan Wu wrote: >>> 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@xxxxxxxxx> >>> Signed-off-by: Bryan Wu <cooloney@xxxxxxxxx> >>> --- >> >> Acked-by: Rob Herring <rob.herring@xxxxxxxxxxx> >> Will this patch be merged through you guys or need I take care of it? Thanks, -Bryan >> I assume you have some user and will take this dependency thru that tree? >> > > Exactly, a patch from Josh [1] inspired me to create this API. > > Thanks, > -Bryan > > [1]: https://lkml.org/lkml/2013/9/24/68 > > >>> 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) >>> { >>> >> -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
