diff options
| -rw-r--r-- | drivers/of/base.c | 53 |
1 files changed, 37 insertions, 16 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c index f807d0edabf3..8d007d8b8c78 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -731,24 +731,42 @@ static const struct of_device_id *__of_match_node(const struct of_device_id *matches, const struct device_node *node) { + const char *cp; + int cplen, l; + if (!matches) return NULL; - while (matches->name[0] || matches->type[0] || matches->compatible[0]) { - int match = 1; - if (matches->name[0]) - match &= node->name - && !strcmp(matches->name, node->name); - if (matches->type[0]) - match &= node->type - && !strcmp(matches->type, node->type); - if (matches->compatible[0]) - match &= __of_device_is_compatible(node, - matches->compatible); - if (match) - return matches; - matches++; - } + cp = __of_get_property(node, "compatible", &cplen); + do { + const struct of_device_id *m = matches; + + /* Check against matches with current compatible string */ + while (m->name[0] || m->type[0] || m->compatible[0]) { + int match = 1; + if (m->name[0]) + match &= node->name + && !strcmp(m->name, node->name); + if (m->type[0]) + match &= node->type + && !strcmp(m->type, node->type); + if (m->compatible[0]) + match &= cp + && !of_compat_cmp(m->compatible, cp, + strlen(m->compatible)); + if (match) + return m; + m++; + } + + /* Get node's next compatible string */ + if (cp) { + l = strlen(cp) + 1; + cp += l; + cplen -= l; + } + } while (cp && (cplen > 0)); + return NULL; } @@ -757,7 +775,10 @@ const struct of_device_id *__of_match_node(const struct of_device_id *matches, * @matches: array of of device match structures to search in * @node: the of device structure to match against * - * Low level utility function used by device matching. + * Low level utility function used by device matching. Matching order + * is to compare each of the node's compatibles with all given matches + * first. This implies node's compatible is sorted from specific to + * generic while matches can be in any order. */ const struct of_device_id *of_match_node(const struct of_device_id *matches, const struct device_node *node) |