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drm/i915/icl+/tc: Convert AUX powered WARN to a debug message

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The BIOS can leave the AUX power well enabled on an output, even if this
isn't required (on platforms where the AUX power is only needed for an
AUX access). This was observed at least on PTL. To avoid the WARN which
would be triggered by this during the HW readout, convert the WARN to a
debug message.

Cc: stable@vger.kernel.org # v6.8+
Reported-by: Charlton Lin <charlton.lin@intel.com>
Tested-by: Khaled Almahallawy <khaled.almahallawy@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/20250811080152.906216-6-imre.deak@intel.com
(cherry picked from commit 6cb52cba47)
Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
This commit is contained in:
Imre Deak
2025-08-11 11:01:52 +03:00
committed by Tvrtko Ursulin
parent c5c2b4b384
commit d7fa5754e8
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/i915/display/intel_tc.c
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@@ -1498,11 +1498,11 @@ static void intel_tc_port_reset_mode(struct intel_tc_port *tc,
intel_display_power_flush_work(display);
if (!intel_tc_cold_requires_aux_pw(dig_port)) {
enum intel_display_power_domain aux_domain;
bool aux_powered;
aux_domain = intel_aux_power_domain(dig_port);
aux_powered = intel_display_power_is_enabled(display, aux_domain);
drm_WARN_ON(display->drm, aux_powered);
if (intel_display_power_is_enabled(display, aux_domain))
drm_dbg_kms(display->drm, "Port %s: AUX unexpectedly powered\n",
tc->port_name);
}
tc_phy_disconnect(tc);