diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/core/of_access.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/core/of_access.c b/drivers/core/of_access.c index 14c020a687..945b81448c 100644 --- a/drivers/core/of_access.c +++ b/drivers/core/of_access.c @@ -812,6 +812,24 @@ int of_alias_get_id(const struct device_node *np, const char *stem) return id; } +int of_alias_get_highest_id(const char *stem) +{ + struct alias_prop *app; + int id = -1; + + mutex_lock(&of_mutex); + list_for_each_entry(app, &aliases_lookup, link) { + if (strcmp(app->stem, stem) != 0) + continue; + + if (app->id > id) + id = app->id; + } + mutex_unlock(&of_mutex); + + return id; +} + struct device_node *of_get_stdout(void) { return of_stdout; |