SSB_GPIO_OUT
pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT, &tmp);
err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out);
err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out);
err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out);
err = pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT, &out);