diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 3a94b79..2f4aea2 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -677,7 +677,13 @@
 			     char *buf)
 {
 	struct platform_device	*pdev = to_platform_device(dev);
-	int len = snprintf(buf, PAGE_SIZE, "platform:%s\n", pdev->name);
+	int len;
+
+	len = acpi_device_modalias(dev, buf, PAGE_SIZE -1);
+	if (len != -ENODEV)
+		return len;
+
+	len = snprintf(buf, PAGE_SIZE, "platform:%s\n", pdev->name);
 
 	return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
 }
@@ -699,6 +705,10 @@
 	if (rc != -ENODEV)
 		return rc;
 
+	rc = acpi_device_uevent_modalias(dev, env);
+	if (rc != -ENODEV)
+		return rc;
+
 	add_uevent_var(env, "MODALIAS=%s%s", PLATFORM_MODULE_PREFIX,
 			pdev->name);
 	return 0;