tree 782f06fc0cf77813499d3d77e47a23c0f613625e
parent 076e2c0eb83f1a0e2e7d0ae1e4d4c0f7b13f1f64
author Chris Wilson <chris@chris-wilson.co.uk> 1295528952 +0000
committer Chris Wilson <chris@chris-wilson.co.uk> 1295787136 +0000

drm/i915: Recognise non-VGA display devices

Starting with SandyBridge (though possible with earlier hacked BIOSes),
the BIOS may initialise the IGFX as secondary to a discrete GPU. Prior,
it would simply disable the integrated GPU. So we adjust our PCI class
mask to match any DISPLAY_CLASS device.

In such a configuration, the IGFX is not a primary VGA controller and
so should not take part in VGA arbitration, and the error return from
vga_client_register() is expected.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org