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of: consolidate linker section OF match table declarations

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We now have several OF match tables using linker sections that are
nearly the same definition. The only variation is the callback function
prototype. Create a common define for creating linker section OF match
table entries which each table declaration can use.

Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Rob Herring 2014-05-08 16:09:24 -05:00
parent 826d895841
commit 54196ccbe0
6 changed files with 32 additions and 38 deletions
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22
include/linux/of.h
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@ -757,4 +757,26 @@ static inline int of_get_available_child_count(const struct device_node *np)
return num;
}
#ifdef CONFIG_OF
#define _OF_DECLARE(table, name, compat, fn, fn_type) \
static const struct of_device_id __of_table_##name \
__used __section(__##table##_of_table) \
= { .compatible = compat, \
.data = (fn == (fn_type)NULL) ? fn : fn }
#else
#define _OF_DECLARE(table, name, compat, fn, fn_type) \
static const struct of_device_id __of_table_##name \
__attribute__((unused)) \
= { .compatible = compat, \
.data = (fn == (fn_type)NULL) ? fn : fn }
#endif
typedef int (*of_init_fn_2)(struct device_node *, struct device_node *);
typedef void (*of_init_fn_1)(struct device_node *);
#define OF_DECLARE_1(table, name, compat, fn) \
_OF_DECLARE(table, name, compat, fn, of_init_fn_1)
#define OF_DECLARE_2(table, name, compat, fn) \
_OF_DECLARE(table, name, compat, fn, of_init_fn_2)
#endif /* _LINUX_OF_H */