diff options
| -rw-r--r-- | arch/sparc64/kernel/prom.c | 43 | ||||
| -rw-r--r-- | include/asm-sparc64/prom.h | 3 |
2 files changed, 46 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c index 7809100034b..e9d703eea80 100644 --- a/arch/sparc64/kernel/prom.c +++ b/arch/sparc64/kernel/prom.c @@ -27,6 +27,26 @@ static struct device_node *allnodes; +int of_device_is_compatible(struct device_node *device, const char *compat) +{ + const char* cp; + int cplen, l; + + cp = (char *) of_get_property(device, "compatible", &cplen); + if (cp == NULL) + return 0; + while (cplen > 0) { + if (strncmp(cp, compat, strlen(compat)) == 0) + return 1; + l = strlen(cp) + 1; + cp += l; + cplen -= l; + } + + return 0; +} +EXPORT_SYMBOL(of_device_is_compatible); + struct device_node *of_get_parent(const struct device_node *node) { struct device_node *np; @@ -38,6 +58,7 @@ struct device_node *of_get_parent(const struct device_node *node) return np; } +EXPORT_SYMBOL(of_get_parent); struct device_node *of_get_next_child(const struct device_node *node, struct device_node *prev) @@ -51,6 +72,7 @@ struct device_node *of_get_next_child(const struct device_node *node, return next; } +EXPORT_SYMBOL(of_get_next_child); struct device_node *of_find_node_by_path(const char *path) { @@ -75,6 +97,7 @@ struct device_node *of_find_node_by_phandle(phandle handle) return np; } +EXPORT_SYMBOL(of_find_node_by_phandle); struct device_node *of_find_node_by_name(struct device_node *from, const char *name) @@ -88,6 +111,7 @@ struct device_node *of_find_node_by_name(struct device_node *from, return np; } +EXPORT_SYMBOL(of_find_node_by_name); struct device_node *of_find_node_by_type(struct device_node *from, const char *type) @@ -101,6 +125,25 @@ struct device_node *of_find_node_by_type(struct device_node *from, return np; } +EXPORT_SYMBOL(of_find_node_by_type); + +struct device_node *of_find_compatible_node(struct device_node *from, + const char *type, const char *compatible) +{ + struct device_node *np; + + np = from ? from->allnext : allnodes; + for (; np != 0; np = np->allnext) { + if (type != NULL + && !(np->type != 0 && strcmp(np->type, type) == 0)) + continue; + if (of_device_is_compatible(np, compatible)) + break; + } + + return np; +} +EXPORT_SYMBOL(of_find_compatible_node); struct property *of_find_property(struct device_node *np, const char *name, int *lenp) diff --git a/include/asm-sparc64/prom.h b/include/asm-sparc64/prom.h index 062ae6e1212..6d1556c0c26 100644 --- a/include/asm-sparc64/prom.h +++ b/include/asm-sparc64/prom.h @@ -75,6 +75,8 @@ extern struct device_node *of_find_node_by_type(struct device_node *from, #define for_each_node_by_type(dn, type) \ for (dn = of_find_node_by_type(NULL, type); dn; \ dn = of_find_node_by_type(dn, type)) +extern struct device_node *of_find_compatible_node(struct device_node *from, + const char *type, const char *compat); extern struct device_node *of_find_node_by_path(const char *path); extern struct device_node *of_find_node_by_phandle(phandle handle); extern struct device_node *of_get_parent(const struct device_node *node); @@ -83,6 +85,7 @@ extern struct device_node *of_get_next_child(const struct device_node *node, extern struct property *of_find_property(struct device_node *np, const char *name, int *lenp); +extern int of_device_is_compatible(struct device_node *device, const char *); extern void *of_get_property(struct device_node *node, const char *name, int *lenp); extern int of_getintprop_default(struct device_node *np, |