diff options
Diffstat (limited to 'libfdt')
| -rw-r--r-- | libfdt/fdt_ro.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/libfdt/fdt_ro.c b/libfdt/fdt_ro.c index f559eed..b705f91 100644 --- a/libfdt/fdt_ro.c +++ b/libfdt/fdt_ro.c @@ -145,17 +145,12 @@ int fdt_path_offset(const void *fdt, const char *path) /* see if we have an alias */ if (*path != '/') { - const char *q; - int aliasoffset = fdt_path_offset(fdt, "/aliases"); - - if (aliasoffset < 0) - return -FDT_ERR_BADPATH; + const char *q = strchr(path, '/'); - q = strchr(path, '/'); if (!q) q = end; - p = fdt_getprop_namelen(fdt, aliasoffset, path, q - p, NULL); + p = fdt_get_alias_namelen(fdt, p, q - p); if (!p) return -FDT_ERR_BADPATH; offset = fdt_path_offset(fdt, p); @@ -306,6 +301,23 @@ uint32_t fdt_get_phandle(const void *fdt, int nodeoffset) return fdt32_to_cpu(*php); } +const char *fdt_get_alias_namelen(const void *fdt, + const char *name, int namelen) +{ + int aliasoffset; + + aliasoffset = fdt_path_offset(fdt, "/aliases"); + if (aliasoffset < 0) + return NULL; + + return fdt_getprop_namelen(fdt, aliasoffset, name, namelen, NULL); +} + +const char *fdt_get_alias(const void *fdt, const char *name) +{ + return fdt_get_alias_namelen(fdt, name, strlen(name)); +} + int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen) { int pdepth = 0, p = 0; |