ICL : igt@kms_vblank@pipe-a-ts-continuation-suspend -dmesg-warn - warning: pcode (write of 0x00000000 to mbox 12) mailbox access failed for icl_aux_power_well_enable [i915]: -6, pstore logs available.

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9409/shard-iclb6/igt@kms_vblank@pipe-a-ts-continuation-suspend.html
<6> [637.470901] Console: switching to colour dummy device 80x25
<6> [637.471406] [IGT] kms_vblank: executing
<7> [637.485913] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:247:DP-1]
<7> [637.485980] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:247:DP-1]
<7> [637.486044] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:247:DP-1] disconnected
<7> [637.486374] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:257:HDMI-A-1]
<7> [637.486427] i915 0000:00:02.0: [drm:intel_hdmi_detect [i915]] [CONNECTOR:257:HDMI-A-1]
<7> [637.486484] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:257:HDMI-A-1] disconnected
<7> [637.487352] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:263:HDMI-A-2]
<7> [637.487414] i915 0000:00:02.0: [drm:intel_hdmi_detect [i915]] [CONNECTOR:263:HDMI-A-2]
<7> [637.489008] i915 0000:00:02.0: [drm:intel_power_well_enable [i915]] enabling AUX C TC1
<7> [637.489423] i915 0000:00:02.0: [drm:sandybridge_pcode_write_timeout [i915]] warning: pcode (write of 0x00000000 to mbox 12) mailbox access failed for icl_aux_power_well_enable [i915]: -6
<7> [637.489943] i915 0000:00:02.0: [drm:icl_aux_power_well_enable [i915]] TC cold block failed
<7> [637.490734] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling AUX C TC1
<7> [637.491345] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:263:HDMI-A-2] disconnected
<7> [637.492167] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:267:DP-2]
<7> [637.492231] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:267:DP-2]
<7> [637.492954] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:267:DP-2] disconnected
<7> [637.493374] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:274:DP-3]
<7> [637.493829] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:274:DP-3]
<7> [637.494024] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:274:DP-3] disconnected
<7> [637.494342] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:281:DP-4]
<7> [637.494394] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:281:DP-4]
<7> [637.494504] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:281:DP-4] disconnected
<7> [637.495275] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:239:eDP-1]
<7> [637.495334] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:239:eDP-1]
<7> [637.495772] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [ENCODER:238:DDI A/PHY A] MST support: port: no, sink: no, modparam: yes
<7> [637.496995] i915 0000:00:02.0: [drm:intel_dp_print_rates [i915]] source rates: 162000, 216000, 270000, 324000, 432000, 540000
<7> [637.497355] i915 0000:00:02.0: [drm:intel_dp_print_rates [i915]] sink rates: 162000, 270000
<7> [637.498216] i915 0000:00:02.0: [drm:intel_dp_print_rates [i915]] common rates: 162000, 270000
<7> [637.498586] i915 0000:00:02.0: [drm:intel_dp_set_edid [i915]] [CONNECTOR:239:eDP-1] DFP max bpc 0, max dotclock 0, TMDS clock 0-0
<7> [637.499941] i915 0000:00:02.0: [drm:intel_dp_set_edid [i915]] [CONNECTOR:239:eDP-1] YCbCr 4:2:0 allowed? yes, YCbCr 4:4:4->4:2:0 conversion? no
<7> [637.500271] [drm:drm_dp_get_edid_quirks] DP sink: EDID mfg 06-af prod-ID 6d-22 quirks: 0x0000
<7> [637.500872] [drm:drm_add_display_info] Supported Monitor Refresh rate range is 0 Hz - 0 Hz
<7> [637.500876] [drm:drm_add_display_info] non_desktop set to 0
<7> [637.501202] [drm:drm_add_edid_modes] ELD: no CEA Extension found
<7> [637.501498] [drm:drm_add_display_info] Supported Monitor Refresh rate range is 0 Hz - 0 Hz
<7> [637.501502] [drm:drm_add_display_info] non_desktop set to 0
<7> [637.502065] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:239:eDP-1] probed modes :
<7> [637.502667] [drm:drm_mode_debug_printmodeline] Modeline "1920x1080": 60 141000 1920 1936 1952 2104 1080 1083 1097 1116 0x48 0xa
<7> [637.503003] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:247:DP-1]
<7> [637.503060] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:247:DP-1]
<7> [637.503395] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:247:DP-1] disconnected
<7> [637.503845] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:257:HDMI-A-1]
<7> [637.503954] i915 0000:00:02.0: [drm:intel_hdmi_detect [i915]] [CONNECTOR:257:HDMI-A-1]
<7> [637.504767] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:257:HDMI-A-1] disconnected
<7> [637.505205] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:263:HDMI-A-2]
<7> [637.505252] i915 0000:00:02.0: [drm:intel_hdmi_detect [i915]] [CONNECTOR:263:HDMI-A-2]
<7> [637.505311] i915 0000:00:02.0: [drm:intel_power_well_enable [i915]] enabling AUX C TC1
<7> [637.505397] i915 0000:00:02.0: [drm:sandybridge_pcode_write_timeout [i915]] warning: pcode (write of 0x00000000 to mbox 12) mailbox access failed for icl_aux_power_well_enable [i915]: -6
<7> [637.505441] i915 0000:00:02.0: [drm:icl_aux_power_well_enable [i915]] TC cold block failed
<7> [637.505660] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling AUX C TC1
<7> [637.505674] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:263:HDMI-A-2] disconnected
<7> [637.505698] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:267:DP-2]
<7> [637.505745] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:267:DP-2]
<7> [637.505856] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:267:DP-2] disconnected
<7> [637.505875] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:274:DP-3]
<7> [637.505947] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:274:DP-3]
<7> [637.506028] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:274:DP-3] disconnected
<7> [637.506044] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:281:DP-4]
<7> [637.506089] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:281:DP-4]
<7> [637.506196] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:281:DP-4] disconnected
<6> [637.506498] [IGT] kms_vblank: starting subtest pipe-A-ts-continuation-suspend
<7> [637.507472] [drm:drm_mode_addfb2] [FB:290]
<7> [637.568286] [drm:drm_mode_setcrtc] [CRTC:98:pipe A]
<7> [637.568319] [drm:drm_mode_setcrtc] [CONNECTOR:239:eDP-1]
<7> [637.587855] [drm:drm_mode_setcrtc] [CRTC:167:pipe B]
<7> [637.591970] [drm:drm_mode_setcrtc] [CRTC:236:pipe C]
<7> [637.619328] i915 0000:00:02.0: [drm:i915_fifo_underrun_reset_write [i915]] Re-arming FIFO underruns on pipe A
<6> [637.702360] PM: suspend entry (s2idle)
<6> [637.707948] Filesystems sync: 0.005 seconds
<6> [637.709037] Freezing user space processes ... (elapsed 0.001 seconds) done.
<6> [637.710690] OOM killer disabled.
<6> [637.710692] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
<6> [637.711779] printk: Suspending console(s) (use no_console_suspend to debug)
<5> [637.732706] sd 2:0:0:0: [sda] Synchronizing SCSI cache
<5> [637.732998] sd 2:0:0:0: [sda] Stopping disk
<6> [637.745073] e1000e: EEE TX LPI TIMER: 00000011
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ICL : igt@kms_vblank@pipe-a-ts-continuation-suspend -dmesg-warn - warning: pcode (write of 0x00000000 to mbox 12) mailbox access failed for icl_aux_power_well_enable [i915]: -6, pstore logs available.
