From f8fa2c2e63c76e5d73526f38bdde59fdcfbea166 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Mon, 5 Oct 2020 18:55:24 +0300 Subject: [PATCH] thunderbolt: Only configure USB4 wake for lane 0 adapters 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 --- drivers/thunderbolt/usb4.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/thunderbolt/usb4.c b/drivers/thunderbolt/usb4.c index 40f1357..f2583b4 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); -- 2.7.4