diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/video.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 66e8f7333e9b..609262dc1258 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -1743,10 +1743,18 @@ static int acpi_video_bus_remove(struct acpi_device *device, int type) return 0; } +static int __init is_i740(struct pci_dev *dev) +{ + if (dev->device == 0x00D1) + return 1; + if (dev->device == 0x7000) + return 1; + return 0; +} + static int __init intel_opregion_present(void) { - int i915 = 0; -#if defined(CONFIG_DRM_I915) || defined(CONFIG_DRM_I915_MODULE) + int opregion = 0; struct pci_dev *dev = NULL; u32 address; @@ -1755,13 +1763,15 @@ static int __init intel_opregion_present(void) continue; if (dev->vendor != PCI_VENDOR_ID_INTEL) continue; + /* We don't want to poke around undefined i740 registers */ + if (is_i740(dev)) + continue; pci_read_config_dword(dev, 0xfc, &address); if (!address) continue; - i915 = 1; + opregion = 1; } -#endif - return i915; + return opregion; } int acpi_video_register(void) |