Since PCI is not required in ACPI spec and ARM can run withoutTested-by: Mark Langsdorf <mlangsdo@xxxxxxxxxx>
it, introduce some stub functions to make PCI optional for ACPI,
and make ACPI core run without CONFIG_PCI on ARM64.
When PCI is enabled on ARM64, ACPI core will need some PCI functions
to make it functional, so introduce some empty functions here and
implement it later.
Since ACPI on X86 and IA64 depends on PCI and this patch only makes
PCI optional for ARM64, it will not break anything on X86 and IA64.
Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@xxxxxxx>
Tested-by: Yijing Wang <wangyijing@xxxxxxxxxx>
Signed-off-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx>
---