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dt: add empty of_property_read_u32[_array] for non-dt

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The patch adds empty functions of_property_read_u32 and
of_property_read_u32_array for non-dt build, so that drivers
migrating to dt can save some '#ifdef CONFIG_OF'.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
[grant.likely: Moved things around so only one new static inline is needed]
[grant.likely: Added _string variant]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Shawn Guo 2011-07-08 16:27:33 +08:00 committed by Grant Likely
parent 5a9ebe9599
commit b98c023920
1 changed files with 21 additions and 8 deletions
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29
include/linux/of.h
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@ -200,13 +200,6 @@ extern int of_property_read_u32_array(const struct device_node *np,
u32 *out_values,
size_t sz);
static inline int of_property_read_u32(const struct device_node *np,
char *propname,
u32 *out_value)
{
return of_property_read_u32_array(np, propname, out_value, 1);
}
extern int of_property_read_string(struct device_node *np, char *propname,
const char **out_string);
extern int of_device_is_compatible(const struct device_node *device,
@ -241,12 +234,32 @@ extern void of_attach_node(struct device_node *);
extern void of_detach_node(struct device_node *);
#endif
#else
#else /* CONFIG_OF */
static inline bool of_have_populated_dt(void)
{
return false;
}
static inline int of_property_read_u32_array(const struct device_node *np,
char *propname, u32 *out_values, size_t sz)
{
return -ENOSYS;
}
static inline int of_property_read_string(struct device_node *np,
char *propname, const char **out_string)
{
return -ENOSYS;
}
#endif /* CONFIG_OF */
static inline int of_property_read_u32(const struct device_node *np,
char *propname,
u32 *out_value)
{
return of_property_read_u32_array(np, propname, out_value, 1);
}
#endif /* _LINUX_OF_H */