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-rw-r--r--arch/sparc64/kernel/prom.c43
-rw-r--r--include/asm-sparc64/prom.h3
2 files changed, 46 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c
index 7809100034b0..e9d703eea806 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 062ae6e1212e..6d1556c0c263 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,