On Mon, Jan 20, 2020 at 08:12:46AM +0000, Lee Jones wrote: > > Well, by "library" I mean that the SCU IPC itself does not bind to > > anything but instead it gets called by different drivers such as this > > one passing the device pointer that is the SCU IPC device. Here for > > example it is the platfrom device created from an ACPI description. > > Not keen on that at all. Why can it not be a platform device? We also call the same library from a PCI driver (intel_scu_pcidrv.c in this series) where the device is of type struct pci_dev.