It is perfectly fine to use ACPI_PCI_HOST_GENERIC for ARM64,
so lets get rid of PCI init empty stub, related ACPI header and
go with full-blown PCI host controller driver.

Signed-off-by: Tomasz Nowicki <tn@semihalf.com>
TO: Catalin Marinas <catalin.marinas@arm.com>
TO: Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>
TO: Will Deacon <will.deacon@arm.com>
TO: Arnd Bergmann <arnd@arndb.de>
CC: Liviu Dudau <Liviu.Dudau@arm.com>
Tested-by: Duc Dang <dhdang@apm.com>
Tested-by: Dongdong Liu <liudongdong3@huawei.com>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Tested-by: Graeme Gregory <graeme.gregory@linaro.org>
Tested-by: Sinan Kaya <okaya@codeaurora.org>
---
 arch/arm64/Kconfig      | 1 +
 arch/arm64/kernel/pci.c | 9 ---------
 2 files changed, 1 insertion(+), 9 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 552e996..09c49ea 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -2,6 +2,7 @@ config ARM64
 	def_bool y
 	select ACPI_CCA_REQUIRED if ACPI
 	select ACPI_GENERIC_GSI if ACPI
+	select ACPI_PCI_HOST_GENERIC if ACPI
 	select ACPI_REDUCED_HARDWARE_ONLY if ACPI
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c
index 6e77e1b..1de0168 100644
--- a/arch/arm64/kernel/pci.c
+++ b/arch/arm64/kernel/pci.c
@@ -65,12 +65,3 @@ int pcibios_alloc_irq(struct pci_dev *dev)
 
 	return 0;
 }
-
-#ifdef CONFIG_ACPI
-/* Root bridge scanning */
-struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
-{
-	/* TODO: Should be revisited when implementing PCI on ACPI */
-	return NULL;
-}
-#endif
-- 
1.9.1