On platforms that don't support PCI or have no GPU attached to the PCI
bus, there can still be a primary device on a non-PCI bus.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Tested-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Keith Packard <keithp@keithp.com>