From 1ce3c48e6c76920fa46bfdde84a69e155f880c32 Mon Sep 17 00:00:00 2001 From: Daniel Lezcano Date: Thu, 26 Sep 2013 17:34:24 +0200 Subject: ARM: at91: cpuidle: Move driver to drivers/cpuidle As the cpuidle driver code has no more the dependency with the pm code, the 'standby' callback being passed as a parameter to the device's platform data, we can move the cpuidle driver in the drivers/cpuidle directory. Signed-off-by: Daniel Lezcano Acked-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Nicolas Ferre Conflicts: drivers/cpuidle/Kconfig.arm drivers/cpuidle/Makefile --- arch/arm/mach-at91/Makefile | 1 - arch/arm/mach-at91/cpuidle.c | 69 ------------------------------------------ drivers/cpuidle/Kconfig.arm | 7 +++++ drivers/cpuidle/Makefile | 1 + drivers/cpuidle/cpuidle-at91.c | 69 ++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 77 insertions(+), 70 deletions(-) delete mode 100644 arch/arm/mach-at91/cpuidle.c create mode 100644 drivers/cpuidle/cpuidle-at91.c diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index 3b0a9538093c..c1b737097c95 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -98,7 +98,6 @@ obj-y += leds.o # Power Management obj-$(CONFIG_PM) += pm.o obj-$(CONFIG_AT91_SLOW_CLOCK) += pm_slowclock.o -obj-$(CONFIG_CPU_IDLE) += cpuidle.o ifeq ($(CONFIG_PM_DEBUG),y) CFLAGS_pm.o += -DDEBUG diff --git a/arch/arm/mach-at91/cpuidle.c b/arch/arm/mach-at91/cpuidle.c deleted file mode 100644 index a0774370c6bc..000000000000 --- a/arch/arm/mach-at91/cpuidle.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * based on arch/arm/mach-kirkwood/cpuidle.c - * - * CPU idle support for AT91 SoC - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - * - * The cpu idle uses wait-for-interrupt and RAM self refresh in order - * to implement two idle states - - * #1 wait-for-interrupt - * #2 wait-for-interrupt and RAM self refresh - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#define AT91_MAX_STATES 2 - -static void (*at91_standby)(void); - -/* Actual code that puts the SoC in different idle states */ -static int at91_enter_idle(struct cpuidle_device *dev, - struct cpuidle_driver *drv, - int index) -{ - at91_standby(); - return index; -} - -static struct cpuidle_driver at91_idle_driver = { - .name = "at91_idle", - .owner = THIS_MODULE, - .states[0] = ARM_CPUIDLE_WFI_STATE, - .states[1] = { - .enter = at91_enter_idle, - .exit_latency = 10, - .target_residency = 10000, - .flags = CPUIDLE_FLAG_TIME_VALID, - .name = "RAM_SR", - .desc = "WFI and DDR Self Refresh", - }, - .state_count = AT91_MAX_STATES, -}; - -/* Initialize CPU idle by registering the idle states */ -static int at91_cpuidle_probe(struct platform_device *dev) -{ - at91_standby = (void *)(dev->dev.platform_data); - - return cpuidle_register(&at91_idle_driver, NULL); -} - -static struct platform_driver at91_cpuidle_driver = { - .driver = { - .name = "cpuidle-at91", - .owner = THIS_MODULE, - }, - .probe = at91_cpuidle_probe, -}; - -module_platform_driver(at91_cpuidle_driver); diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm index 6a7e6f2d8adc..f23bd75426cd 100644 --- a/drivers/cpuidle/Kconfig.arm +++ b/drivers/cpuidle/Kconfig.arm @@ -37,3 +37,10 @@ config ARM_U8500_CPUIDLE depends on ARCH_U8500 help Select this to enable cpuidle for ST-E u8500 processors + +config ARM_AT91_CPUIDLE + bool "Cpu Idle Driver for the AT91 processors" + default y + depends on ARCH_AT91 + help + Select this to enable cpuidle for AT91 processors diff --git a/drivers/cpuidle/Makefile b/drivers/cpuidle/Makefile index d08bd4055a49..527be28e5c1e 100644 --- a/drivers/cpuidle/Makefile +++ b/drivers/cpuidle/Makefile @@ -12,3 +12,4 @@ obj-$(CONFIG_ARM_HIGHBANK_CPUIDLE) += cpuidle-calxeda.o obj-$(CONFIG_ARM_KIRKWOOD_CPUIDLE) += cpuidle-kirkwood.o obj-$(CONFIG_ARM_ZYNQ_CPUIDLE) += cpuidle-zynq.o obj-$(CONFIG_ARM_U8500_CPUIDLE) += cpuidle-ux500.o +obj-$(CONFIG_ARM_AT91_CPUIDLE) += cpuidle-at91.o diff --git a/drivers/cpuidle/cpuidle-at91.c b/drivers/cpuidle/cpuidle-at91.c new file mode 100644 index 000000000000..a0774370c6bc --- /dev/null +++ b/drivers/cpuidle/cpuidle-at91.c @@ -0,0 +1,69 @@ +/* + * based on arch/arm/mach-kirkwood/cpuidle.c + * + * CPU idle support for AT91 SoC + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + * + * The cpu idle uses wait-for-interrupt and RAM self refresh in order + * to implement two idle states - + * #1 wait-for-interrupt + * #2 wait-for-interrupt and RAM self refresh + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define AT91_MAX_STATES 2 + +static void (*at91_standby)(void); + +/* Actual code that puts the SoC in different idle states */ +static int at91_enter_idle(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int index) +{ + at91_standby(); + return index; +} + +static struct cpuidle_driver at91_idle_driver = { + .name = "at91_idle", + .owner = THIS_MODULE, + .states[0] = ARM_CPUIDLE_WFI_STATE, + .states[1] = { + .enter = at91_enter_idle, + .exit_latency = 10, + .target_residency = 10000, + .flags = CPUIDLE_FLAG_TIME_VALID, + .name = "RAM_SR", + .desc = "WFI and DDR Self Refresh", + }, + .state_count = AT91_MAX_STATES, +}; + +/* Initialize CPU idle by registering the idle states */ +static int at91_cpuidle_probe(struct platform_device *dev) +{ + at91_standby = (void *)(dev->dev.platform_data); + + return cpuidle_register(&at91_idle_driver, NULL); +} + +static struct platform_driver at91_cpuidle_driver = { + .driver = { + .name = "cpuidle-at91", + .owner = THIS_MODULE, + }, + .probe = at91_cpuidle_probe, +}; + +module_platform_driver(at91_cpuidle_driver); -- cgit v1.2.3-59-g8ed1b