linux-kernel - [PATCH 07/20] ARM64 / ACPI: Enable ARM64 in Kconfig

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Date:	Fri, 17 Jan 2014 20:25:01 +0800
From:	Hanjun Guo <hanjun.guo@...aro.org>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	linux-acpi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Grant Likely <grant.likely@...aro.org>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Olof Johansson <olof@...om.net>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Rob Herring <robh@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Arnd Bergmann <arnd@...db.de>, patches@...aro.org,
	linux-kernel@...r.kernel.org, linaro-kernel@...ts.linaro.org,
	linaro-acpi@...ts.linaro.org, Charles.Garcia-Tobin@....com,
	Hanjun Guo <hanjun.guo@...aro.org>,
	Graeme Gregory <graeme.gregory@...aro.org>,
	Al Stone <al.stone@...aro.org>
Subject: [PATCH 07/20] ARM64 / ACPI: Enable ARM64 in Kconfig

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

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

In order to make arm-core.c can both run on ARM and ARM64, introduce
CONFIG_ACPI_ARM to support it.

Signed-off-by: Graeme Gregory <graeme.gregory@...aro.org>
Signed-off-by: Al Stone <al.stone@...aro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@...aro.org>
---
 arch/arm64/Kconfig         |    2 ++
 drivers/acpi/Kconfig       |   11 ++++++++---
 drivers/acpi/plat/Makefile |    2 +-
 3 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 6d4dd22..2b1fb1d 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -279,6 +279,8 @@ source "net/Kconfig"
 
 source "drivers/Kconfig"
 
+source "drivers/acpi/Kconfig"
+
 source "fs/Kconfig"
 
 source "arch/arm64/kvm/Kconfig"
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 4770de5..cae5dc9 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -2,13 +2,16 @@
 # ACPI Configuration
 #
 
+config ACPI_ARM
+	bool
+
 menuconfig ACPI
 	bool "ACPI (Advanced Configuration and Power Interface) Support"
 	depends on !IA64_HP_SIM
-	depends on IA64 || X86
-	depends on PCI
+	depends on ((IA64 || X86) && PCI) || ARM64
 	select PNP
-	default y
+	select ACPI_ARM if ARM64
+	default y if !ARM64
 	help
 	  Advanced Configuration and Power Interface (ACPI) support for 
 	  Linux requires an ACPI-compliant platform (hardware/firmware),
@@ -149,6 +152,7 @@ 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
@@ -250,6 +254,7 @@ config ACPI_DEBUG
 config ACPI_PCI_SLOT
 	bool "PCI slot detection driver"
 	depends on SYSFS
+	depends on PCI
 	default n
 	help
 	  This driver creates entries in /sys/bus/pci/slots/ for all PCI
diff --git a/drivers/acpi/plat/Makefile b/drivers/acpi/plat/Makefile
index 46bc65e..3a61176 100644
--- a/drivers/acpi/plat/Makefile
+++ b/drivers/acpi/plat/Makefile
@@ -1 +1 @@
-obj-$(CONFIG_ARM64)	+= arm-core.o
+obj-$(CONFIG_ACPI_ARM)	+= arm-core.o
-- 
1.7.9.5

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