diff options
Diffstat (limited to 'include/dm/of_access.h')
| -rw-r--r-- | include/dm/of_access.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/dm/of_access.h b/include/dm/of_access.h index 142f0f43c9..d2827001e2 100644 --- a/include/dm/of_access.h +++ b/include/dm/of_access.h @@ -261,6 +261,24 @@ static inline int of_property_read_string_index(const struct device_node *np, } /** + * of_property_count_strings() - Find and return the number of strings from a + * multiple strings 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 tree node and retrieve the number of null + * terminated string contain in it. Returns the number of strings on + * success, -EINVAL if the property does not exist, -ENODATA if property + * does not have a value, and -EILSEQ if the string is not null-terminated + * within the length of the property data. + */ +static inline int of_property_count_strings(const struct device_node *np, + const char *propname) +{ + return of_property_read_string_helper(np, propname, NULL, 0, 0); +} + +/** * of_parse_phandle - Resolve a phandle property to a device_node pointer * @np: Pointer to device node holding phandle property * @phandle_name: Name of property holding a phandle value |