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igt@kms_chamelium_hpd@dp-hpd-storm-disable - dmesg-warn -*ERROR* Failed to read DPCD register 0x92

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12624/re-rpls-cham/igt@kms_chamelium_hpd@dp-hpd-storm-disable.html#dmesg-warnings989

<7> [983.260744] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY C: timeout (status 0x7c1003ff)
<7> [983.289744] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX USBC2/DDI TC2/PHY C: timeout (status 0x7c1003ff)
<7> [983.289848] i915 0000:00:02.0: [drm:drm_dp_dpcd_access [drm_display_helper]] AUX USBC2/DDI TC2/PHY C: Too many retries, giving up. First error: -110
<3> [983.289856] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
<7> [983.297040] i915 0000:00:02.0: [drm:intel_dp_set_edid [i915]] PCON ENCODER DSC DPCD: 00 00 00 00 00 00 00 00 00 00 00 00 00
<7> [983.297136] i915 0000:00:02.0: [drm:intel_dp_set_edid [i915]] [CONNECTOR:151:DP-2] RGB->YcbCr conversion? no, YCbCr 4:2:0 allowed? yes, YCbCr 4:4:4->4:2:0 conversion? no
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