On Wed, 15 Dec 2021 10:51:13 +0100, Maxime Ripard wrote:
The VC4 driver has had limited support to disable the HDMI controllers and pixelvalves at boot if the firmware has enabled them.
However, this proved to be limited, and a bit unreliable so a new firmware command has been introduced some time ago to make it free all its resources and disable any display output it might have enabled.
[...]
Applied to drm/drm-misc (drm-misc-next).
Thanks! Maxime