[patch v11 07/23] ARM64 / ACPI: Introduce PCI stub functions for ACPI

On Tue, Mar 24, 2015 at 10:02:40PM +0800, Hanjun Guo wrote:

CONFIG_ACPI depends CONFIG_PCI on x86 and ia64, in ARM64 server
world we will have PCIe in most cases, but some of them may not,
make CONFIG_ACPI depend CONFIG_PCI on ARM64 will satisfy both.

With that case, we need some arch dependent PCI functions to
access the config space before the PCI root bridge is created, and
pci_acpi_scan_root() to create the PCI root bus. So introduce
some stub function here to make ACPI core compile and revisit
them later when implemented on ARM64.

CC: Liviu Dudau <Liviu.Dudau@arm.com>
CC: Catalin Marinas <catalin.marinas@arm.com>
CC: Will Deacon <redacted>
Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Tested-by: Yijing Wang <redacted>
Tested-by: Mark Langsdorf <redacted>
Tested-by: Jon Masters <redacted>
Tested-by: Timur Tabi <redacted>
Tested-by: Robert Richter <redacted>
Acked-by: Robert Richter <redacted>
Reviewed-by: Grant Likely <redacted>
Signed-off-by: Hanjun Guo <redacted>

Acked-by: Catalin Marinas <catalin.marinas@arm.com>