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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2011-01-20 16:09:12 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2011-01-23 15:52:16 +0300 |
| commit | 934f992c763ae1e5eefcce8af769c16444085df7 (patch) | |
| tree | 782f06fc0cf77813499d3d77e47a23c0f613625e /drivers/gpu/vga | |
| parent | 076e2c0eb83f1a0e2e7d0ae1e4d4c0f7b13f1f64 (diff) | |
| download | linux-934f992c763ae1e5eefcce8af769c16444085df7.tar.xz | |
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
Diffstat (limited to 'drivers/gpu/vga')
| -rw-r--r-- | drivers/gpu/vga/vgaarb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c index c380c65da417..ace2b1623b21 100644 --- a/drivers/gpu/vga/vgaarb.c +++ b/drivers/gpu/vga/vgaarb.c @@ -636,7 +636,7 @@ int vga_client_register(struct pci_dev *pdev, void *cookie, void (*irq_set_state)(void *cookie, bool state), unsigned int (*set_vga_decode)(void *cookie, bool decode)) { - int ret = -1; + int ret = -ENODEV; struct vga_device *vgadev; unsigned long flags; |