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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
This commit is contained in:
Imre Deak 2025-08-11 11:01:52 +03:00
parent afc4e84388
commit 6cb52cba47
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);