Martin Blumenstingl [off-list ref] writes:

Stefan reports that rebooting his ODROID-N2+ (using a G12B SoC) results
in the board hanging. His kernel config uses:
  CONFIG_MESON_EE_PM_DOMAINS=y
  CONFIG_DRM_MESON=m

He reports that his kernel config results in the DRM driver's .shutdown
callback to be executed after the power domain driver's .shutdown
callback. That's problematic because meson_ee_pwrc_shutdown disables the
clock which are used by the VPU IP. This causes the board to hang.

I didn't dig deeply on this yet because this smells very much like an
issue Art reported[1] and fixed.

What kernel version are you using, and does it contain
commit fa0c16caf3d7 (drm: meson_drv add shutdown function)

Kevin

[1] https://lore.kernel.org/dri-devel/20210302042202.3728113-1-art@khadas.com/ (local)