evie/android_kernel_oneplus_msm8998
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[SPARC64]: Expand of_*() interfaces some more.

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Import some more stuff from powerpc.

Add of_device_is_compatible(), and of_find_compatible_node().
Export some more of the other routines to modules.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-06-22 22:08:58 -07:00
parent 92c4e22593
commit 8cd24ed4f8
2 changed files with 46 additions and 0 deletions
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43
arch/sparc64/kernel/prom.c
View file

@ -27,6 +27,26 @@
static struct device_node *allnodes; 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 *of_get_parent(const struct device_node *node)
{ {
struct device_node *np; struct device_node *np;
@ -38,6 +58,7 @@ struct device_node *of_get_parent(const struct device_node *node)
return np; return np;
} }
EXPORT_SYMBOL(of_get_parent);
struct device_node *of_get_next_child(const struct device_node *node, struct device_node *of_get_next_child(const struct device_node *node,
struct device_node *prev) struct device_node *prev)
@ -51,6 +72,7 @@ struct device_node *of_get_next_child(const struct device_node *node,
return next; return next;
} }
EXPORT_SYMBOL(of_get_next_child);
struct device_node *of_find_node_by_path(const char *path) 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; return np;
} }
EXPORT_SYMBOL(of_find_node_by_phandle);
struct device_node *of_find_node_by_name(struct device_node *from, struct device_node *of_find_node_by_name(struct device_node *from,
const char *name) const char *name)
@ -88,6 +111,7 @@ struct device_node *of_find_node_by_name(struct device_node *from,
return np; return np;
} }
EXPORT_SYMBOL(of_find_node_by_name);
struct device_node *of_find_node_by_type(struct device_node *from, struct device_node *of_find_node_by_type(struct device_node *from,
const char *type) const char *type)
@ -101,6 +125,25 @@ struct device_node *of_find_node_by_type(struct device_node *from,
return np; 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, struct property *of_find_property(struct device_node *np, const char *name,
int *lenp) int *lenp)

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

@ -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) \ #define for_each_node_by_type(dn, type) \
for (dn = of_find_node_by_type(NULL, type); dn; \ for (dn = of_find_node_by_type(NULL, type); dn; \
dn = of_find_node_by_type(dn, type)) 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_path(const char *path);
extern struct device_node *of_find_node_by_phandle(phandle handle); extern struct device_node *of_find_node_by_phandle(phandle handle);
extern struct device_node *of_get_parent(const struct device_node *node); 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, extern struct property *of_find_property(struct device_node *np,
const char *name, const char *name,
int *lenp); 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, extern void *of_get_property(struct device_node *node, const char *name,
int *lenp); int *lenp);
extern int of_getintprop_default(struct device_node *np, extern int of_getintprop_default(struct device_node *np,