diff options
| -rw-r--r-- | common/oftree.c | 19 | ||||
| -rw-r--r-- | include/of.h | 1 |
2 files changed, 20 insertions, 0 deletions
diff --git a/common/oftree.c b/common/oftree.c index 50fc95b588..f75d7b4bfe 100644 --- a/common/oftree.c +++ b/common/oftree.c @@ -160,6 +160,25 @@ int of_register_fixup(int (*fixup)(struct device_node *, void *), void *context) } /* + * Remove a previously registered fixup. Only the first (if any) is removed. + * Returns 0 if a match was found (and removed), -ENOENT otherwise. + */ +int of_unregister_fixup(int (*fixup)(struct device_node *, void *), + void *context) +{ + struct of_fixup *of_fixup; + + list_for_each_entry(of_fixup, &of_fixup_list, list) { + if (of_fixup->fixup == fixup && of_fixup->context == context) { + list_del(&of_fixup->list); + return 0; + } + } + + return -ENOENT; +} + +/* * Apply registered fixups for the given fdt. The fdt must have * enough free space to apply the fixups. */ diff --git a/include/of.h b/include/of.h index e73cd7a446..c02f5f49ab 100644 --- a/include/of.h +++ b/include/of.h @@ -243,6 +243,7 @@ struct device_d *of_find_device_by_node_path(const char *path); #define OF_FIND_PATH_FLAGS_BB 1 /* return .bb device if available */ int of_find_path(struct device_node *node, const char *propname, char **outpath, unsigned flags); int of_register_fixup(int (*fixup)(struct device_node *, void *), void *context); +int of_unregister_fixup(int (*fixup)(struct device_node *, void *), void *context); struct device_node *of_find_node_by_alias(struct device_node *root, const char *alias); struct device_node *of_find_node_by_path_or_alias(struct device_node *root, |