[ADL-P] AUX lost after resume from s2idle
CPU: i7-1260P Kernel: latest tree of drm-intel-next. i915 firmware: latest from linux-firmware
Kernel log warning when boot: [ 3.385481] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX B/DDI B/PHY B: timeout (status 0x7d4003ff) ... [ 4.375622] i915 0000:00:02.0: drm_WARN_ON(intel_dp->pps.vdd_wakeref)
When suspend,another warnning: [ 300.150246] i915 0000:00:02.0: i915 raw-wakerefs=1 wakelocks=1 on cleanup
After resume, the screen is always black due to the following error: [ 317.852020] i915 0000:00:02.0: [drm:intel_dp_aux_xfer [i915]] AUX A/DDI A/PHY A: timeout (status 0x7d4003ff) ... [ 318.501968] i915 0000:00:02.0: [drm] ERROR Failed to write source OUI ... [ 323.883949] i915 0000:00:02.0: [drm] ERROR [ENCODER:235:DDI A/PHY A][DPRX] Failed to enable link training ... [ 327.242262] i915 0000:00:02.0: [drm] ERROR Failed to read DPCD register 0x60
Please check dmesg for details.