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of: Add helpers to get one string in multiple strings property

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Add of_property_read_string_index and of_property_count_strings
to retrieve one string inside a property that will contains
severals strings.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kevin Hilman <khilman@ti.com>
This commit is contained in:
Benoit Cousson
2011-09-27 17:45:43 +02:00
committed by Kevin Hilman
parent f718e2c034
commit 4fcd15a032
2 changed files with 102 additions and 0 deletions
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18
include/linux/of.h
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@ -203,6 +203,11 @@ extern int of_property_read_u32_array(const struct device_node *np,
extern int of_property_read_string(struct device_node *np,
const char *propname,
const char **out_string);
extern int of_property_read_string_index(struct device_node *np,
const char *propname,
int index, const char **output);
extern int of_property_count_strings(struct device_node *np,
const char *propname);
extern int of_device_is_compatible(const struct device_node *device,
const char *);
extern int of_device_is_available(const struct device_node *device);
@ -256,6 +261,19 @@ static inline int of_property_read_string(struct device_node *np,
return -ENOSYS;
}
static inline int of_property_read_string_index(struct device_node *np,
const char *propname, int index,
const char **out_string)
{
return -ENOSYS;
}
static inline int of_property_count_strings(struct device_node *np,
const char *propname)
{
return -ENOSYS;
}
static inline const void *of_get_property(const struct device_node *node,
const char *name,
int *lenp)