[REGRESSION] 5.18-rc1+ blank screen on AMD RMB with OLED panel

Blank screen when bootup on AMD RMB with OLED panel. 5.17 is good, first bad commit: [1b08dfb889b2c584b444538c9500af24ba0a6dc7] drm/amdgpu: remove gart.ready flag

log attached: 5.19-rc1-amd-blankscreen-gart.ready.dmesg

Hardware description:

• CPU: AMD Ryzen 5 PRO 6650U with Radeon Graphics
• GPU: 62:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Rembrandt [1002:1681] (rev d2)
• Display(s): SDC ATNA33AA02-0
• Type of Display Connection: eDP OLED

System information:

• Distro name and Version: Ubuntu 22.04
• Kernel version: 5.18-rc1
• Custom kernel: 5.19-rc1