diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-10-05 17:55:24 +0200 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-11-05 11:32:53 +0100 |
| commit | f8fa2c2e63c76e5d73526f38bdde59fdcfbea166 (patch) | |
| tree | 8e6b3bb3b4e27c564b91abb03f8e88ad9f3266c0 /drivers | |
| parent | thunderbolt: Add uaccess dependency to debugfs interface (diff) | |
| download | linux-f8fa2c2e63c76e5d73526f38bdde59fdcfbea166.tar.xz linux-f8fa2c2e63c76e5d73526f38bdde59fdcfbea166.zip | |
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 <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/thunderbolt/usb4.c | 4 |
1 files changed, 4 insertions, 0 deletions
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); |