[patch 0/6] RFC: PCI: consolidate pcibios_enable_resources() implementations, v2

[Bjorn Helgaas <bjorn.helgaas@hp.com>]

There are many implementations of pcibios_enable_resources() that differ
in minor ways that look more like bugs than architectural differences.
This patch series consolidates most of them to use the x86 version.

Changes between v1 and v2:

  - Moved ARM bridge enable to new platform_pci_enable_device(),
    called by pcibios_enable_device()

  - Moved PA-RISC SERR & PERR enable to new platform_pci_enable_device(),
    called by pcibios_enable_device()

  - In the generic pcibios_enable_resources(), adopted powerpc resource
    collision detection (check for (!r->parent) instead of
    (!r->start && r->end))

  - In the generic pcibios_enable_resources(), added a little more detail to
    the resource collision error message

  - Moved consolidated pcibios_enable_resources() from bios.c to setup-res.c

Thanks for the comments on the first version.  I think this addresses
all of them.

Any other comments would be welcome.

Bjorn
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