diff options
| -rw-r--r-- | src/northbridge/intel/x4x/gma.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/northbridge/intel/x4x/gma.c b/src/northbridge/intel/x4x/gma.c index f4b2b2efca..c2df07424e 100644 --- a/src/northbridge/intel/x4x/gma.c +++ b/src/northbridge/intel/x4x/gma.c @@ -376,6 +376,16 @@ static void gma_func0_init(struct device *dev) pci_dev_init(dev); } +static void gma_func0_disable(struct device *dev) +{ + struct device *dev_host = dev_find_slot(0, PCI_DEVFN(0, 0)); + u16 ggc; + + ggc = pci_read_config16(dev_host, D0F0_GGC); + ggc |= (1 << 1); /* VGA cycles to discrete GPU */ + pci_write_config16(dev_host, D0F0_GGC, ggc); +} + static void gma_set_subsystem(device_t dev, unsigned int vendor, unsigned int device) { @@ -419,6 +429,7 @@ static struct device_operations gma_func0_ops = { .acpi_fill_ssdt_generator = gma_ssdt, .init = gma_func0_init, .ops_pci = &gma_pci_ops, + .disable = gma_func0_disable, }; static const unsigned short pci_device_ids[] = { |