.parent = &ssam_node_hub_base,
 };
 
+/* Platform profile / performance-mode device. */
+static const struct software_node ssam_node_tmp_pprof = {
+       .name = "ssam:01:03:01:00:01",
+       .parent = &ssam_node_root,
+};
+
 /* Devices for Surface Book 2. */
 static const struct software_node *ssam_node_group_sb2[] = {
        &ssam_node_root,
+       &ssam_node_tmp_pprof,
        NULL,
 };
 
        &ssam_node_bat_ac,
        &ssam_node_bat_main,
        &ssam_node_bat_sb3base,
+       &ssam_node_tmp_pprof,
        NULL,
 };
 
 /* Devices for Surface Laptop 1. */
 static const struct software_node *ssam_node_group_sl1[] = {
        &ssam_node_root,
+       &ssam_node_tmp_pprof,
        NULL,
 };
 
 /* Devices for Surface Laptop 2. */
 static const struct software_node *ssam_node_group_sl2[] = {
        &ssam_node_root,
+       &ssam_node_tmp_pprof,
        NULL,
 };
 
        &ssam_node_root,
        &ssam_node_bat_ac,
        &ssam_node_bat_main,
+       &ssam_node_tmp_pprof,
        NULL,
 };
 
        &ssam_node_root,
        &ssam_node_bat_ac,
        &ssam_node_bat_main,
+       &ssam_node_tmp_pprof,
        NULL,
 };
 
 /* Devices for Surface Pro 5. */
 static const struct software_node *ssam_node_group_sp5[] = {
        &ssam_node_root,
+       &ssam_node_tmp_pprof,
        NULL,
 };
 
 /* Devices for Surface Pro 6. */
 static const struct software_node *ssam_node_group_sp6[] = {
        &ssam_node_root,
+       &ssam_node_tmp_pprof,
        NULL,
 };
 
        &ssam_node_root,
        &ssam_node_bat_ac,
        &ssam_node_bat_main,
+       &ssam_node_tmp_pprof,
        NULL,
 };