diff options
| author | Matthew Garrett <mjg@redhat.com> | 2012-04-16 22:26:04 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-04-24 10:50:17 +0200 |
| commit | 88674088d10ca2538b2efd2559f6620ade8ec373 (patch) | |
| tree | 6a77b0d946017cb7e8765bf993495499828bf032 /arch/x86/video | |
| parent | vga-switcheroo: Use vga_default_device() (diff) | |
| download | linux-88674088d10ca2538b2efd2559f6620ade8ec373.tar.xz linux-88674088d10ca2538b2efd2559f6620ade8ec373.zip | |
x86: Use vga_default_device() when determining whether an fb is primary
IORESOURCE_ROM_SHADOW is not necessarily an indication that the hardware
is the primary device. Add support for using the vgaarb functions and
fall back if nothing's set them.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: mingo@redhat.com
Acked-by: hpa@zytor.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'arch/x86/video')
| -rw-r--r-- | arch/x86/video/fbdev.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/arch/x86/video/fbdev.c b/arch/x86/video/fbdev.c index c5ffb6ac8707..d5644bbe8cba 100644 --- a/arch/x86/video/fbdev.c +++ b/arch/x86/video/fbdev.c @@ -9,24 +9,34 @@ #include <linux/fb.h> #include <linux/pci.h> #include <linux/module.h> +#include <linux/vgaarb.h> int fb_is_primary_device(struct fb_info *info) { struct device *device = info->device; struct pci_dev *pci_dev = NULL; + struct pci_dev *default_device = vga_default_device(); struct resource *res = NULL; - int retval = 0; if (device) pci_dev = to_pci_dev(device); - if (pci_dev) - res = &pci_dev->resource[PCI_ROM_RESOURCE]; + if (!pci_dev) + return 0; + + if (default_device) { + if (pci_dev == default_device) + return 1; + else + return 0; + } + + res = &pci_dev->resource[PCI_ROM_RESOURCE]; if (res && res->flags & IORESOURCE_ROM_SHADOW) - retval = 1; + return 1; - return retval; + return 0; } EXPORT_SYMBOL(fb_is_primary_device); MODULE_LICENSE("GPL"); |