diff options
Diffstat (limited to 'drivers/thunderbolt/tb.c')
| -rw-r--r-- | drivers/thunderbolt/tb.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c index a6da2d0567ae..c35d5fec48f4 100644 --- a/drivers/thunderbolt/tb.c +++ b/drivers/thunderbolt/tb.c @@ -910,6 +910,29 @@ static void tb_dp_resource_available(struct tb *tb, struct tb_port *port) tb_tunnel_dp(tb); } +static void tb_disconnect_and_release_dp(struct tb *tb) +{ + struct tb_cm *tcm = tb_priv(tb); + struct tb_tunnel *tunnel, *n; + + /* + * Tear down all DP tunnels and release their resources. They + * will be re-established after resume based on plug events. + */ + list_for_each_entry_safe_reverse(tunnel, n, &tcm->tunnel_list, list) { + if (tb_tunnel_is_dp(tunnel)) + tb_deactivate_and_free_tunnel(tunnel); + } + + while (!list_empty(&tcm->dp_resources)) { + struct tb_port *port; + + port = list_first_entry(&tcm->dp_resources, + struct tb_port, list); + list_del_init(&port->list); + } +} + static int tb_tunnel_pci(struct tb *tb, struct tb_switch *sw) { struct tb_port *up, *down, *port; @@ -1226,6 +1249,7 @@ static int tb_suspend_noirq(struct tb *tb) struct tb_cm *tcm = tb_priv(tb); tb_dbg(tb, "suspending...\n"); + tb_disconnect_and_release_dp(tb); tb_switch_suspend(tb->root_switch); tcm->hotplug_active = false; /* signal tb_handle_hotplug to quit */ tb_dbg(tb, "suspend finished\n"); |