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dt: add helper to read 64-bit integers

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Add a helper similar to of_property_read_u32() that handles 64-bit
integers.

v2/v3: constify device node and property name parameters.

Cc: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Jamie Iles
2011-09-14 20:49:59 +01:00
committed by Grant Likely
parent 85888069cf
commit 4cd7f7a311
2 changed files with 37 additions and 0 deletions
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8
include/linux/of.h
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@ -200,6 +200,8 @@ extern int of_property_read_u32_array(const struct device_node *np,
const char *propname,
u32 *out_values,
size_t sz);
extern int of_property_read_u64(const struct device_node *np,
const char *propname, u64 *out_value);
extern int of_property_read_string(struct device_node *np,
const char *propname,
@ -281,6 +283,12 @@ static inline const void *of_get_property(const struct device_node *node,
return NULL;
}
static inline int of_property_read_u64(const struct device_node *np,
const char *propname, u64 *out_value)
{
return -ENOSYS;
}
#define of_match_ptr(_ptr) NULL
#endif /* CONFIG_OF */