Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history
yaml
---
r: 336561
b: refs/heads/master
c: 50c8af4
h: refs/heads/master
i:
  336559: fcfbdfa
v: v3
  • Loading branch information
Stephen Warren authored and Rob Herring committed Nov 21, 2012
1 parent 3ace1d7 commit 79c9a18
Show file tree
Hide file tree
Showing 3 changed files with 27 additions and 8 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: be193249b4178158c0f697cb452b2bbf0cb16361
refs/heads/master: 50c8af4cf98fd97d6779f244215154e4c89699c7
18 changes: 13 additions & 5 deletions trunk/drivers/of/base.c
Original file line number Diff line number Diff line change
Expand Up @@ -594,27 +594,35 @@ const struct of_device_id *of_match_node(const struct of_device_id *matches,
EXPORT_SYMBOL(of_match_node);

/**
* of_find_matching_node - Find a node based on an of_device_id match
* table.
* of_find_matching_node_and_match - Find a node based on an of_device_id
* match table.
* @from: The node to start searching from or NULL, the node
* you pass will not be searched, only the next one
* will; typically, you pass what the previous call
* returned. of_node_put() will be called on it
* @matches: array of of device match structures to search in
* @match Updated to point at the matches entry which matched
*
* Returns a node pointer with refcount incremented, use
* of_node_put() on it when done.
*/
struct device_node *of_find_matching_node(struct device_node *from,
const struct of_device_id *matches)
struct device_node *of_find_matching_node_and_match(struct device_node *from,
const struct of_device_id *matches,
const struct of_device_id **match)
{
struct device_node *np;

if (match)
*match = NULL;

read_lock(&devtree_lock);
np = from ? from->allnext : allnodes;
for (; np; np = np->allnext) {
if (of_match_node(matches, np) && of_node_get(np))
if (of_match_node(matches, np) && of_node_get(np)) {
if (match)
*match = matches;
break;
}
}
of_node_put(from);
read_unlock(&devtree_lock);
Expand Down
15 changes: 13 additions & 2 deletions trunk/include/linux/of.h
Original file line number Diff line number Diff line change
Expand Up @@ -179,11 +179,22 @@ extern struct device_node *of_find_compatible_node(struct device_node *from,
#define for_each_compatible_node(dn, type, compatible) \
for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
dn = of_find_compatible_node(dn, type, compatible))
extern struct device_node *of_find_matching_node(struct device_node *from,
const struct of_device_id *matches);
extern struct device_node *of_find_matching_node_and_match(
struct device_node *from,
const struct of_device_id *matches,
const struct of_device_id **match);
static inline struct device_node *of_find_matching_node(
struct device_node *from,
const struct of_device_id *matches)
{
return of_find_matching_node_and_match(from, matches, NULL);
}
#define for_each_matching_node(dn, matches) \
for (dn = of_find_matching_node(NULL, matches); dn; \
dn = of_find_matching_node(dn, matches))
#define for_each_matching_node_and_match(dn, matches, match) \
for (dn = of_find_matching_node_and_match(NULL, matches, match); \
dn; dn = of_find_matching_node_and_match(dn, matches, match))
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);
Expand Down

0 comments on commit 79c9a18

Please sign in to comment.