Raspberry Pi 4 GPU acceleration support

[domenkozar]

In the original RPi4 issue there's a NixOS module snippet to configure GPU support:

{ config, pkgs, ...}:
{
  hardware.opengl = {
    enable = true;
    setLdLibraryPath = true;
    package = pkgs.mesa_drivers;
  };
  hardware.deviceTree = {
    kernelPackage = pkgs.linux_rpi4;
    overlays = [ "${pkgs.device-tree_rpi.overlays}/vc4-fkms-v3d.dtbo" ];
  };
}

Unfortunately it fails to build currently with error FDT_ERR_NOTFOUND.

#79370 discusses what's the culprit and there's a patch for nixpkgs that could be adapted and tested: kwohlfahrt@7ba456e

[domenkozar]

NixOS/nixos-hardware#261 solves it!