Re: [PATCH 4/6] PCI: of: Add an API to get the BDF for the device node

[Manivannan Sadhasivam]

On Fri, Aug 22, 2025 at 08:51:47AM GMT, Rob Herring wrote:
> On Tue, Aug 19, 2025 at 12:44:53PM +0530, Manivannan Sadhasivam wrote:
> > Bus:Device:Function (BDF) numbers are used to uniquely identify a
> > device/function on a PCI bus. Hence, add an API to get the BDF from the
> > devicetree node of a device.
> 
> For FDT, the bus should always be 0. It doesn't make sense for FDT. The 
> bus number in DT reflects how firmware configured the PCI buses, but 
> there's no firmware configuration of PCI for FDT.

This API is targeted for DT platforms only, where it is used to uniquely
identify a devfn. What should I do to make it DT specific and not FDT?

- Mani

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