diff options
| author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2012-02-07 12:12:51 +0800 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2013-04-25 20:25:40 +0100 |
| commit | 2930913e3d0c2cf88c635063af8a4fc721d6e31a (patch) | |
| tree | 9440a12d9b7ee0725e4ae5f0e995e431902d59f4 /include | |
| parent | add02e682081ecdf0ee4eaf9d10dc6ef6235789d (diff) | |
of: introduce helper to manage boolean
commit fa4d34ccd0914ac87336ea2c17e9370dfecef286 upstream.
of_property_read_bool
Search for a property in a device node.
Returns true if the property exist false otherwise.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'include')
| -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 4948552d60f5..9bf9611878ab 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -336,6 +336,22 @@ static inline int of_machine_is_compatible(const char *compat) #define of_match_node(_matches, _node) NULL #endif /* CONFIG_OF */ +/** + * of_property_read_bool - Findfrom a property + * @np: device node from which the property value is to be read. + * @propname: name of the property to be searched. + * + * Search for a property in a device node. + * Returns true if the property exist false otherwise. + */ +static inline bool of_property_read_bool(const struct device_node *np, + const char *propname) +{ + struct property *prop = of_find_property(np, propname, NULL); + + return prop ? true : false; +} + static inline int of_property_read_u32(const struct device_node *np, const char *propname, u32 *out_value) |