On 15.07.2024 7:33 PM, Manivannan Sadhasivam via B4 Relay wrote: > From: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> > > Right now, PCI endpoint subsystem doesn't assign PCI domain number for the > PCI endpoint controllers. But this domain number could be useful to the EPC > drivers to uniquely identify each controller based on the hardware instance > when there are multiple ones present in an SoC (even multiple RC/EP). > > So let's make use of the existing pci_bus_find_domain_nr() API to allocate > domain numbers based on either Devicetree (linux,pci-domain) property or > dynamic domain number allocation scheme. > > It should be noted that the domain number allocated by this API will be > based on both RC and EP controllers in a SoC. If the 'linux,pci-domain' DT > property is present, then the domain number represents the actual hardware > instance of the PCI endpoint controller. If not, then the domain number > will be allocated based on the PCI EP/RC controller probe order. > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> > --- The PCI counterpart does some error checking and requires CONFIG_PCI_DOMAINS_GENERIC. Is that something that needs to be taken care of here as well? Konrad
