On Thu, Oct 30, 2014 at 12:27:13PM +0000, Yijing Wang wrote:
> On 2014/10/30 19:44, Lorenzo Pieralisi wrote:
> > Most if not all ARM PCI host controller device drivers either ignore the
> > domain field in the pci_sys_data structure or just increment it every
> > time a host controller is probed, using it as a domain counter.
> >
> > Therefore, instead of relying on pci_sys_data to stash the domain number
> > in a standard location, ARM pcibios code can be moved to the newly
> > introduced generic PCI domains code, implemented in commits:
> >
> > commit 41e5c0f81d3e676d671d96a0a1fafb27abfbd9
> > ("of/pci: Add pci_get_new_domain_nr() and of_get_pci_domain_nr()")
> >
> > commit 670ba0c8883b576d0aec28bd7a838358a4be1
> > ("PCI: Add generic domain handling")
> >
> > In order to assign a domain number dynamically, the ARM pcibios defines
> > the function, called by core PCI code:
> >
> > void pci_bus_assign_domain_nr(...)
> >
> > that relies on a DT property to define the domain number or falls back to
> > a counter; its usage replaces the current domain assignment code in PCI
> > host controllers present in the kernel.
>
> Nice clean up.
>
> Reviewed-by: Yijing Wang <wangyijing@xxxxxxxxxx>
Thank you Yijing !
Lorenzo
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