diff options
| author | Robert Lee <rob.lee@linaro.org> | 2012-03-19 20:15:52 -0500 |
|---|---|---|
| committer | Robert Lee <b18647@b18647-12.(none)> | 2012-03-19 20:42:46 -0500 |
| commit | dabc71e521bc8be46926a9eafcb7bd9453f44152 (patch) | |
| tree | 6aa73a55231f0fe6d88f95d26868ba8c5d1b44b9 | |
| parent | 1dfe2d069e719d7714389454cab4599aafe41dbc (diff) | |
ARM: imx: Add imx6q cpuidle driver
Add basic imx6q cpuidle driver. For now, only basic WFI state is
supported. Deeper idle will be added in the future.
Signed-off-by: Robert Lee <rob.lee@linaro.org>
| -rw-r--r-- | arch/arm/mach-imx/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-imx/cpuidle-imx6q.c | 33 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mach-imx6q.c | 2 |
3 files changed, 36 insertions, 1 deletions
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index 9d3947fbd2a..33ec07c832a 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -72,7 +72,7 @@ AFLAGS_head-v7.o :=-Wa,-march=armv7-a obj-$(CONFIG_SMP) += platsmp.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o obj-$(CONFIG_LOCAL_TIMERS) += localtimer.o -obj-$(CONFIG_SOC_IMX6Q) += clock-imx6q.o mach-imx6q.o +obj-$(CONFIG_SOC_IMX6Q) += clock-imx6q.o mach-imx6q.o cpuidle-imx6q.o ifeq ($(CONFIG_PM),y) obj-$(CONFIG_SOC_IMX6Q) += pm-imx6q.o diff --git a/arch/arm/mach-imx/cpuidle-imx6q.c b/arch/arm/mach-imx/cpuidle-imx6q.c new file mode 100644 index 00000000000..b74557f7a80 --- /dev/null +++ b/arch/arm/mach-imx/cpuidle-imx6q.c @@ -0,0 +1,33 @@ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + * Copyright 2012 Linaro Ltd. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/cpuidle.h> +#include <linux/export.h> +#include <asm/cpuidle.h> +#include <mach/cpuidle.h> + +static struct cpuidle_driver imx6q_cpuidle_driver = { + .name = "imx6q_cpuidle", + .owner = THIS_MODULE, + .en_core_tk_irqen = 1, + .states[0] = ARM_CPUIDLE_WFI_STATE, + .state_count = 1, +}; + +int __init imx6q_cpuidle_init(void) +{ + imx_cpuidle_set_driver(&imx6q_cpuidle_driver); + + return 0; +} diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c index c2572810691..b4825ba4617 100644 --- a/arch/arm/mach-imx/mach-imx6q.c +++ b/arch/arm/mach-imx/mach-imx6q.c @@ -27,6 +27,7 @@ #include <asm/mach/time.h> #include <mach/common.h> #include <mach/hardware.h> +#include <mach/cpuidle.h> void imx6q_restart(char mode, const char *cmd) { @@ -82,6 +83,7 @@ static void __init imx6q_init_machine(void) of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); imx6q_pm_init(); + imx6q_cpuidle_init(); } static void __init imx6q_map_io(void) |