diff options
| -rw-r--r-- | drivers/i2c/i2c-core.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 86083e5e5520..c588a8504c99 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -1769,6 +1769,36 @@ struct i2c_adapter *of_get_i2c_adapter_by_node(struct device_node *node) return adapter; } EXPORT_SYMBOL(of_get_i2c_adapter_by_node); + +static const struct of_device_id* +i2c_of_match_device_sysfs(const struct of_device_id *matches, + struct i2c_client *client) +{ + const char *name; + + for (; matches->compatible[0]; matches++) { + /* + * Adding devices through the i2c sysfs interface provides us + * a string to match which may be compatible with the device + * tree compatible strings, however with no actual of_node the + * of_match_device() will not match + */ + if (sysfs_streq(client->name, matches->compatible)) + return matches; + + name = strchr(matches->compatible, ','); + if (!name) + name = matches->compatible; + else + name++; + + if (sysfs_streq(client->name, name)) + return matches; + } + + return NULL; +} + #else static void of_i2c_register_devices(struct i2c_adapter *adap) { } #endif /* CONFIG_OF */ |