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Commit b98c0239 authored by Shawn Guo's avatar Shawn Guo Committed by Grant Likely
Browse files

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



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: default avatarShawn 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: default avatarGrant Likely <grant.likely@secretlab.ca>
parent 5a9ebe95

include/linux/of.h

+21 −8
Original line number Diff line number Diff line
@@ -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 */