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dt: add empty of_alias_get_id() for non-dt builds 

Add function of_alias_get_id() reporting -ENOSYS
for non-dt builds, so that drivers migrating to dt
can save some '#ifdef CONFIG_OF'.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Nicolas Ferre 2011-10-27 11:07:28 +02:00 committed by Grant Likely
parent 81397a625d
commit ed5f886d16
1 changed files with 5 additions and 0 deletions
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5
include/linux/of.h
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@ -303,6 +303,11 @@ static inline struct device_node *of_parse_phandle(struct device_node *np,
return NULL;
}
static inline int of_alias_get_id(struct device_node *np, const char *stem)
{
return -ENOSYS;
}
#define of_match_ptr(_ptr) NULL
#define of_match_node(_matches, _node) NULL
#endif /* CONFIG_OF */