drm/i915/dp_tunnel: Sanitize documentation of intel_dp_tunnel_detect()

Clarify the documentation of detect_new_tunnel() return values,
including the failure case.

Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260219182823.926702-5-imre.deak@intel.com
This commit is contained in:
Imre Deak 2026-02-19 20:28:22 +02:00
commit 23a5fd5bec