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Commit ecaa8b0f authored by Dave C Boutcher's avatar Dave C Boutcher Committed by Paul Mackerras
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[PATCH] powerpc: Add of_find_property function 



Add an of_find_property function that returns a struct property
given a property name.  Then change the get_property function to
use that routine internally.

Signed-off-by: default avatarDave Boutcher <sleddog@us.ibm.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 088186de

arch/powerpc/kernel/prom.c

+13 −6
Original line number Original line Diff line number Diff line
@@ -1779,11 +1779,7 @@ static int __init prom_reconfig_setup(void) 
__initcall(prom_reconfig_setup);

__initcall(prom_reconfig_setup);

#endif

#endif





/*

struct property *of_find_property(struct device_node *np, const char *name,

 * Find a property with a given name for a given node

 * and return the value.

 */

unsigned char *get_property(struct device_node *np, const char *name,

				  int *lenp)

				  int *lenp)

{

{

	struct property *pp;

	struct property *pp;
@@ -1797,6 +1793,17 @@ unsigned char *get_property(struct device_node *np, const char *name, 
		}

		}

	read_unlock(&devtree_lock);

	read_unlock(&devtree_lock);





	return pp;

}



/*

 * Find a property with a given name for a given node

 * and return the value.

 */

unsigned char *get_property(struct device_node *np, const char *name,

			    int *lenp)

{

	struct property *pp = of_find_property(np,name,lenp);

	return pp ? pp->value : NULL;

	return pp ? pp->value : NULL;

}

}

EXPORT_SYMBOL(get_property);

EXPORT_SYMBOL(get_property);

include/asm-powerpc/prom.h

+3 −0
Original line number Original line Diff line number Diff line
@@ -136,6 +136,9 @@ extern struct device_node *of_find_all_nodes(struct device_node *prev); 
extern struct device_node *of_get_parent(const struct device_node *node);

extern struct device_node *of_get_parent(const struct device_node *node);

extern struct device_node *of_get_next_child(const struct device_node *node,

extern struct device_node *of_get_next_child(const struct device_node *node,

					     struct device_node *prev);

					     struct device_node *prev);

extern struct property *of_find_property(struct device_node *np,

					 const char *name,

					 int *lenp);

extern struct device_node *of_node_get(struct device_node *node);

extern struct device_node *of_node_get(struct device_node *node);

extern void of_node_put(struct device_node *node);

extern void of_node_put(struct device_node *node);