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usb: typec: thunderbolt: Check cable altmode support

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Update the probe function to utilize the new
typec_cable_altmode_unsupported() helper. If the cable doesn't support
Thunderbolt altmode, don't initialize altmode_ops and prevent altmode
from being activated.

Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260626142702.1941182-3-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andrei Kuchynski 2026-06-26 14:27:01 +00:00 committed by Greg Kroah-Hartman
parent 4bc488bf82
commit 07f0d51a8e
1 changed files with 4 additions and 0 deletions
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4
drivers/usb/typec/altmodes/thunderbolt.c
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@ -284,6 +284,10 @@ static int tbt_altmode_probe(struct typec_altmode *alt)
alt->desc = "Thunderbolt3";
typec_altmode_set_drvdata(alt, tbt);
if (typec_cable_altmode_unsupported(alt))
return 0;
typec_altmode_set_ops(alt, &tbt_altmode_ops);
if (!alt->mode_selection && tbt_ready(alt)) {