- if (bus == 0 && dev_fn >= PCI_DEVFN(TX3927_PCIC_MAX_DEVNU, 0))
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- tx3927_pcicptr->ica = ((bus & 0xff) << 0x10) |
- ((dev_fn & 0xff) << 0x08) |
- (where & 0xfc);
+ if (bus->parent == NULL &&
+ devfn >= PCI_DEVFN(TX3927_PCIC_MAX_DEVNU, 0))
+ return -1;
+ tx3927_pcicptr->ica =
+ ((bus->number & 0xff) << 0x10) |
+ ((devfn & 0xff) << 0x08) |
+ (where & 0xfc) | (bus->parent ? 1 : 0);