igt@kms_vblank@pipe-b-ts-continuation-dpms-suspend - incomplete - PM: suspend entry (deep)

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12285/shard-skl4/igt@kms_vblank@pipe-b-ts-continuation-dpms-suspend.html

<7> [239.608233] i915 0000:00:02.0: [drm:wait_panel_status [i915]] Wait complete
<7> [239.609437] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling DDI_IO_A_E
<7> [239.610628] i915 0000:00:02.0: [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x01000000, dig 0x12001010, pins 0x00000010, long 0x00000010
<7> [239.611458] i915 0000:00:02.0: [drm:intel_hpd_irq_handler [i915]] digital hpd on [ENCODER:94:DDI A/PHY A] - long
<7> [239.612416] i915 0000:00:02.0: [drm:intel_hpd_irq_handler [i915]] Received HPD interrupt on PIN 4 - cnt: 10
<7> [239.613589] i915 0000:00:02.0: [drm:intel_dp_hpd_pulse [i915]] ignoring long hpd on eDP [ENCODER:94:DDI A/PHY A]
<7> [239.613788] i915 0000:00:02.0: [drm:intel_disable_shared_dpll [i915]] disable DPLL 0 (active 0x2, on? 1) for [CRTC:72:pipe B]
<7> [239.615435] i915 0000:00:02.0: [drm:intel_disable_shared_dpll [i915]] disabling DPLL 0
<7> [239.616739] i915 0000:00:02.0: [drm:intel_modeset_verify_disabled [i915]] [ENCODER:94:DDI A/PHY A]
<7> [239.618146] i915 0000:00:02.0: [drm:intel_modeset_verify_disabled [i915]] [ENCODER:102:DDI B/PHY B]
<7> [239.619560] i915 0000:00:02.0: [drm:intel_modeset_verify_disabled [i915]] [ENCODER:104:DP-MST A]
<7> [239.620948] i915 0000:00:02.0: [drm:intel_modeset_verify_disabled [i915]] [ENCODER:105:DP-MST B]
<7> [239.622258] i915 0000:00:02.0: [drm:intel_modeset_verify_disabled [i915]] [ENCODER:106:DP-MST C]
<7> [239.623648] i915 0000:00:02.0: [drm:intel_modeset_verify_disabled [i915]] [ENCODER:117:DDI C/PHY C]
<7> [239.624972] i915 0000:00:02.0: [drm:intel_modeset_verify_disabled [i915]] [ENCODER:119:DP-MST A]
<7> [239.626362] i915 0000:00:02.0: [drm:intel_modeset_verify_disabled [i915]] [ENCODER:120:DP-MST B]
<7> [239.627638] i915 0000:00:02.0: [drm:intel_modeset_verify_disabled [i915]] [ENCODER:121:DP-MST C]
<7> [239.628810] i915 0000:00:02.0: [drm:verify_single_dpll_state.isra.35 [i915]] DPLL 0
<7> [239.630189] i915 0000:00:02.0: [drm:verify_single_dpll_state.isra.35 [i915]] DPLL 1
<7> [239.631442] i915 0000:00:02.0: [drm:verify_single_dpll_state.isra.35 [i915]] DPLL 2
<7> [239.632654] i915 0000:00:02.0: [drm:verify_single_dpll_state.isra.35 [i915]] DPLL 3
<7> [239.634025] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling PW_2
<7> [239.635588] i915 0000:00:02.0: [drm:verify_connector_state [i915]] [CONNECTOR:95:eDP-1]
<7> [239.637293] i915 0000:00:02.0: [drm:intel_modeset_verify_crtc [i915]] [CRTC:72:pipe B]
<7> [239.638878] i915 0000:00:02.0: [drm:verify_single_dpll_state.isra.35 [i915]] DPLL 0
<7> [239.640635] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling DC_off
<7> [239.641966] i915 0000:00:02.0: [drm:skl_enable_dc6 [i915]] Enabling DC6
<7> [239.643482] i915 0000:00:02.0: [drm:gen9_set_dc_state.part.15 [i915]] Setting DC state from 00 to 02
<7> [239.645940] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling always-on
<6> [240.366976] PM: suspend entry (deep)
<6> [240.407695] Filesystems sync: 0.040 seconds