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-rw-r--r--drivers/thunderbolt/tb.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c
index 1f000ac1728b..c348b1fc0efc 100644
--- 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);