drm/i915/psr: Disable early transport by default

Early transport validation is currently incomplete. Due to this disable the
feature by default.
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231218175004.52875-8-jouni.hogander@intel.com

drivers/gpu/drm/i915/display/intel_psr.c

@@ -2842,6 +2842,9 @@ void intel_psr_init(struct intel_dp *intel_dp)
 	else
 		intel_dp->psr.source_support = true;
 
+	/* Disable early transport for now */
+	intel_dp->psr.debug |= I915_PSR_DEBUG_SU_REGION_ET_DISABLE;
+
 	/* Set link_standby x link_off defaults */
 	if (DISPLAY_VER(dev_priv) < 12)
 		/* For new platforms up to TGL let's respect VBT back again */