From: Graeme Gregory <redacted>

Add Kconfigs to build ACPI on ARM64, and make ACPI available on ARM64.

acpi_idle driver is x86/IA64 dependent now, so make CONFIG_ACPI_PROCESSOR
depend on X86 || IA64, and implement it on ARM64 in the future.

CC: Rafael J. Wysocki <redacted>
CC: Catalin Marinas <catalin.marinas@arm.com>
CC: Will Deacon <redacted>
Reviewed-by: Grant Likely <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>
Signed-off-by: Graeme Gregory <redacted>
Signed-off-by: Al Stone <redacted>
Signed-off-by: Hanjun Guo <redacted>
---
 arch/arm64/Kconfig   | 2 ++
 drivers/acpi/Kconfig | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index d00ab9a..e5aa081 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig

@@ -713,6 +713,8 @@ source "drivers/Kconfig"
 
 source "drivers/firmware/Kconfig"
 
+source "drivers/acpi/Kconfig"
+
 source "fs/Kconfig"
 
 source "arch/arm64/kvm/Kconfig"

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index e6c3ddd..7aa3288 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig

@@ -5,7 +5,7 @@
 menuconfig ACPI
 	bool "ACPI (Advanced Configuration and Power Interface) Support"
 	depends on !IA64_HP_SIM
-	depends on IA64 || X86
+	depends on IA64 || X86 || (ARM64 && EXPERT)
 	depends on PCI
 	select PNP
 	default y

@@ -163,6 +163,7 @@ config ACPI_PROCESSOR
 	tristate "Processor"
 	select THERMAL
 	select CPU_IDLE
+	depends on X86 || IA64
 	default y
 	help
 	  This driver installs ACPI as the idle handler for Linux and uses

-- 
1.9.1