Only USB4 lane 0 adapter has the USB4 port capability for wakes so only
program wakes on such adapters.
Fixes: b2911a593a70 ("thunderbolt: Enable wakes from system suspend")
Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
---
drivers/thunderbolt/usb4.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/thunderbolt/usb4.c b/drivers/thunderbolt/usb4.c
index 40f13579a3fe..f2583b4053e4 100644
--- a/drivers/thunderbolt/usb4.c
+++ b/drivers/thunderbolt/usb4.c
@@ -421,8 +421,12 @@ int usb4_switch_set_wake(struct tb_switch *sw, unsigned int flags)
* upstream USB4 port.
*/
tb_switch_for_each_port(sw, port) {
+ if (!tb_port_is_null(port))
+ continue;
if (!route && tb_is_upstream_port(port))
continue;
+ if (!port->cap_usb4)
+ continue;
ret = tb_port_read(port, &val, TB_CFG_PORT,
port->cap_usb4 + PORT_CS_19, 1);
--
2.28.0
