usb: typec: displayport: 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
DisplayPort altmode, don't initialize altmode_ops and prevent altmode
from being activated.
A captive cable shouldn't be checked; it may not provide discoverable
capability information, but it is inherently designed to support the
device's requirements.

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/20260626142702.1941182-4-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Andrei Kuchynski 2026-06-26 14:27:02 +00:00 • committed by Greg Kroah-Hartman

parent 07f0d51a8e

commit ef14df3670

1 changed files with 4 additions and 1 deletions

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drivers/usb/typec/altmodes/displayport.c

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