On 10/04/2024 23:26, Bjorn Helgaas wrote: > On Wed, Apr 10, 2024 at 08:15:19PM +0200, Krzysztof Kozlowski wrote: >> MT7621 PCI host bridge has children which apparently are also PCI host >> bridges, at least that's what the binding suggest. > > What does it even mean for a PCI host bridge to have a child that is > also a PCI host bridge? > > Does this mean a driver binds to the "parent" host bridge, enumerates > the PCI devices below it, and finds a "child" host bridge? I think the question should be towards Mediatek folks. I don't know what this hardware is exactly, just looks like pci-pci-bridge. The driver calls the children host bridges as "ports". Best regards, Krzysztof
