Looks like I accidentally made it so you couldn't force DPCD backlight
support on, whoops. Fix that.
Signed-off-by: Lyude Paul <ly...@redhat.com>
Fixes: 17f5d57915be ("drm/i915: Force DPCD backlight mode on X1 Extreme 2nd Gen
4K AMOLED panel")
Cc: Adam Jackson <a...@redhat.com>
Cc: Jani Nikula <jani.nik...@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
Cc: "Ville Syrjälä" <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
index 4b916468540f..0722540d64ad 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
@@ -358,6 +358,7 @@ int intel_dp_aux_init_backlight_funcs(struct
intel_connector *intel_connector)
*/
if (i915->vbt.backlight.type !=
INTEL_BACKLIGHT_VESA_EDP_AUX_INTERFACE &&
+ i915_modparams.enable_dpcd_backlight != 1 &&
!drm_dp_has_quirk(&intel_dp->desc, intel_dp->edid_quirks,
DP_QUIRK_FORCE_DPCD_BACKLIGHT)) {
drm_info(&i915->drm,
--
2.25.1
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