Merge tag 'devicetree-fixes-for-5.12-2' of git://git.kernel.org/pub/scm/linux/kernel...

[linux-2.6-microblaze.git] / drivers / thunderbolt / tb.c

diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c
index 1f000ac..c348b1f 100644 (file)
--- a/drivers/thunderbolt/tb.c
+++ b/drivers/thunderbolt/tb.c
@@ -138,6 +138,10 @@ static void tb_discover_tunnels(struct tb_switch *sw)
                                parent->boot = true;
                                parent = tb_switch_parent(parent);
                        }
+               } else if (tb_tunnel_is_dp(tunnel)) {
+                       /* Keep the domain from powering down */
+                       pm_runtime_get_sync(&tunnel->src_port->sw->dev);
+                       pm_runtime_get_sync(&tunnel->dst_port->sw->dev);
                }
 
                list_add_tail(&tunnel->list, &tcm->tunnel_list);