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| author |   Bryan Wu <cooloney@gmail.com> | 2013-09-24 10:38:26 -0700 |
|---|---|---|
| committer | Bryan Wu <cooloney@gmail.com> | 2013-10-25 10:12:31 -0700 |
| commit | 954e04b9491adea99e4590bc73937fdd8774ab3c (patch) | |
| tree | ff4b2d6f961b9243e1a678f0c054a555c652e67e /include/linux/of.h | |
| parent | leds: Added driver for the NXP PCA9685 I2C chip (diff) | |
| download | linux-dev-954e04b9491adea99e4590bc73937fdd8774ab3c.tar.xz linux-dev-954e04b9491adea99e4590bc73937fdd8774ab3c.zip | |
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: Bryan Wu <cooloney@gmail.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Diffstat (limited to 'include/linux/of.h')
| -rw-r--r-- | include/linux/of.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/of.h b/include/linux/of.h index f95aee391e30..54c25606a997 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) { |