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[SPARC64]: Add of_getintprop_default().

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This encodes a common idiomatic coding pattern used when
dealing with integer properties.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-06-21 23:07:29 -07:00
parent 6760d28bc6
commit 6d307724cb
2 changed files with 15 additions and 0 deletions
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12
arch/sparc64/kernel/prom.c
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@ -104,6 +104,18 @@ struct property *of_find_property(struct device_node *np, const char *name,
return pp; return pp;
} }
int of_getintprop_default(struct device_node *np, const char *name, int def)
{
struct property *prop;
int len;
prop = of_find_property(np, name, &len);
if (!prop || len != 4)
return def;
return *(int *) prop->value;
}
static unsigned int prom_early_allocated; static unsigned int prom_early_allocated;
static void * __init prom_early_alloc(unsigned long size) static void * __init prom_early_alloc(unsigned long size)

3
include/asm-sparc64/prom.h
View file

@ -82,6 +82,9 @@ extern struct device_node *of_get_next_child(const struct device_node *node,
extern struct property *of_find_property(struct device_node *np, extern struct property *of_find_property(struct device_node *np,
const char *name, const char *name,
int *lenp); int *lenp);
extern int of_getintprop_default(struct device_node *np,
const char *name,
int def);
extern void prom_build_devicetree(void); extern void prom_build_devicetree(void);