Few kms tests - Incomplete - PM: suspend entry (s2idle)

https://intel-gfx-ci.01.org/tree/intel-xe/xe-466-c49faefeafbfb2b6f06778563886a930d1a36a8b/re-adlp-pub4/igt@kms_flip@flip-vs-suspend@b-edp1.html

<7> [1289.020502] xe 0000:00:02.0: [drm:intel_enable_transcoder [xe]] enabling pipe B
<7> [1289.020729] xe 0000:00:02.0: [drm:intel_edp_backlight_on [xe]] 
<7> [1289.020932] xe 0000:00:02.0: [drm:intel_backlight_enable [xe]] pipe B
<7> [1289.021149] xe 0000:00:02.0: [drm:intel_backlight_set_pwm_level [xe]] [CONNECTOR:236:eDP-1] set backlight PWM = 96000
<7> [1289.037545] xe 0000:00:02.0: [drm:gen9_dbuf_slices_update [xe]] Updating dbuf slices to 0xf
<7> [1289.037742] xe 0000:00:02.0: [drm:intel_psr_post_plane_update [xe]] Enabling PSR2
<7> [1289.039005] xe 0000:00:02.0: [drm:verify_connector_state [xe]] [CONNECTOR:236:eDP-1]
<7> [1289.039176] xe 0000:00:02.0: [drm:intel_modeset_verify_crtc [xe]] [CRTC:131:pipe B]
<7> [1289.039411] xe 0000:00:02.0: [drm:verify_single_dpll_state.isra.0 [xe]] DPLL 0
<7> [1289.277427] xe 0000:00:02.0: [drm:intel_tc_port_update_mode [xe]] Port D/TC#1: TC port mode reset (disconnected -> tbt-alt)
<7> [1289.300268] xe 0000:00:02.0: [drm:drm_dp_dpcd_access [drm_display_helper]] AUX USBC1/DDI TC1/PHY TC1: Too many retries, giving up. First error: -6
<7> [1289.308407] xe 0000:00:02.0: [drm:intel_tc_port_update_mode [xe]] Port E/TC#2: TC port mode reset (disconnected -> tbt-alt)
<6> [1289.310305] PM: suspend entry (s2idle)
<6> [1289.314187] Filesystems sync: 0.003 seconds
<6> [1289.316231] Freezing user space processes