Update from Qualcomm to support smd devices in Modem Manager

src/mm-plugin-base.c

Index: src/mm-plugin-base.c
diff --git a/src/mm-plugin-base.c b/src/mm-plugin-base.c
index 202eaac9f017bd681264cd417825ab31cc6e7f86..8537b4d0cfc208144cf21ccb5df67a02fea704a9 100644
--- a/src/mm-plugin-base.c
+++ b/src/mm-plugin-base.c
@@ -44,6 +44,8 @@ G_DEFINE_TYPE_EXTENDED (MMPluginBase, mm_plugin_base, G_TYPE_OBJECT,
  */
 static GHashTable *cached_caps = NULL;
 
+/* Virtual port corresponding to the embeded modem */
+static gchar *virtual_port[] = {"smd0", NULL};
 
 typedef struct {
     char *name;
@@ -911,6 +913,7 @@ supports_port (MMPlugin *plugin,
     MMPluginSupportsResult result = MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
     MMModem *existing;
     const char *master_path;
+    int idx;
 
     key = get_key (subsys, name);
     task = g_hash_table_lookup (priv->tasks, key);
@@ -923,6 +926,17 @@ supports_port (MMPlugin *plugin,
     if (!port)
         goto out;
 
+    // Detect any modems accessible through the list of virtual ports
+    for (idx = 0; virtual_port[idx]; idx++)  {
+        if (strcmp(name, virtual_port[idx]))
+            continue;
+        task = supports_task_new (self, port, port, "virtual", callback, callback_data);
+        g_assert (task);
+        g_hash_table_insert (priv->tasks, g_strdup (key), g_object_ref (task));
+        master_path = g_udev_device_get_sysfs_path (port);
+        goto find_plugin;
+    }
+
     physdev = MM_PLUGIN_BASE_GET_CLASS (self)->find_physical_device (self, port);
     if (!physdev)
         goto out;
@@ -937,6 +951,8 @@ supports_port (MMPlugin *plugin,
 
     /* Help the plugin out a bit by finding an existing modem for this port */
     master_path = g_udev_device_get_sysfs_path (physdev);
+
+find_plugin:
     existing = g_hash_table_lookup (priv->modems, master_path);
 
     result = MM_PLUGIN_BASE_GET_CLASS (self)->supports_port (self, existing, task);