Re: [PATCH V2 2/2] PCI: generic: Add msi_parent DT binding

[Suravee Suthikulpanit]

On 11/12/14 13:56, Srikanth Thokala wrote:
> > @@ -122,9 +123,19 @@ static int gen_pci_config_write(struct pci_bus *bus, unsigned int devfn,
> > >         return PCIBIOS_SUCCESSFUL;
> > >  }
> > >
> > >+static int gen_pci_set_msi_parent(struct pci_bus *bus)
> > >+{
> > >+       struct gen_pci *pci = bus_to_gen_pci(bus);
> > >+
> > >+       bus->msi = pci->mchip;
> > >+
> > >+       return PCIBIOS_SUCCESSFUL;
> > >+}
> > >+
> > >  static struct pci_ops gen_pci_ops = {
> > >         .read   = gen_pci_config_read,
> > >         .write  = gen_pci_config_write,
> > >+       .set_msi_parent = gen_pci_set_msi_parent,
> We assign the msi chip through add_bus() call, do we still need this?

Certain architecture (i.e arm64) doesn't implement struct hw_pci. 
Therefore, there is no add_bus().  However, this new API should allow 
non-arch dependent implementation.

Suravee
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