1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index d74c0b34248e..c4c5588ec0fb 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -104,6 +104,11 @@ static int i2c_device_match(struct device *dev, struct device_driver *drv)
 static int i2c_device_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
         struct i2c_client       *client = to_i2c_client(dev);
+        int rc;
+
+        rc = acpi_device_uevent_modalias(dev, env);
+        if (rc != -ENODEV)
+                return rc;
 
         if (add_uevent_var(env, "MODALIAS=%s%s",
                            I2C_MODULE_PREFIX, client->name))
@@ -409,6 +414,12 @@ static ssize_t
 show_modalias(struct device *dev, struct device_attribute *attr, char *buf)
 {
         struct i2c_client *client = to_i2c_client(dev);
+        int len;
+
+        len = acpi_device_modalias(dev, buf, PAGE_SIZE -1);
+        if (len != -ENODEV)
+                return len;
+
         return sprintf(buf, "%s%s\n", I2C_MODULE_PREFIX, client->name);
 }