| From | Ben Hutchings <> | Date | Mon, 22 Apr 2013 15:25:59 +0100 | Subject | [45/75] of: introduce helper to manage boolean |
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3.2.44-rc1 review patch. If anyone has any objections, please let me know.
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From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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> --- include/linux/of.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
--- a/include/linux/of.h +++ b/include/linux/of.h @@ -336,6 +336,22 @@ static inline int of_machine_is_compatib #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)
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