From 2930913e3d0c2cf88c635063af8a4fc721d6e31a Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Tue, 7 Feb 2012 12:12:51 +0800 Subject: [PATCH] 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 Acked-by: Rob Herring Acked-by: Arnd Bergmann Acked-by: Grant Likely Signed-off-by: Ben Hutchings --- include/linux/of.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/include/linux/of.h b/include/linux/of.h index 4948552d60f5e..9bf9611878ab9 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) -- 2.47.3