While at it: - remove "common.h" include - remove wrong comment about file path
Tested on Exynos4210 (Universal C210 board). Cc: Jaecheol Lee <[email protected]> Cc: Lorenzo Pieralisi <[email protected]> Cc: Amit Daniel Kachhap <[email protected]> Cc: Tomasz Figa <[email protected]> Cc: Kukjin Kim <[email protected]> Cc: Daniel Lezcano <[email protected]> Cc: "Rafael J. Wysocki" <[email protected]> Signed-off-by: Kyungmin Park <[email protected]> Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]> --- arch/arm/mach-exynos/Makefile | 1 - arch/arm/mach-exynos/cpuidle.c | 95 ---------------------------------------- drivers/cpuidle/Makefile | 3 ++ drivers/cpuidle/cpuidle-exynos.c | 92 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 95 insertions(+), 96 deletions(-) delete mode 100644 arch/arm/mach-exynos/cpuidle.c create mode 100644 drivers/cpuidle/cpuidle-exynos.c diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile index b09b027..0f91c7a 100644 --- a/arch/arm/mach-exynos/Makefile +++ b/arch/arm/mach-exynos/Makefile @@ -16,7 +16,6 @@ obj-$(CONFIG_ARCH_EXYNOS) += common.o obj-$(CONFIG_PM) += pm.o obj-$(CONFIG_PM_GENERIC_DOMAINS) += pm_domains.o -obj-$(CONFIG_CPU_IDLE) += cpuidle.o obj-$(CONFIG_ARCH_EXYNOS) += pmu.o diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c deleted file mode 100644 index d6e5115..0000000 --- a/arch/arm/mach-exynos/cpuidle.c +++ /dev/null @@ -1,95 +0,0 @@ -/* linux/arch/arm/mach-exynos4/cpuidle.c - * - * Copyright (c) 2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/cpuidle.h> -#include <linux/cpu_pm.h> -#include <linux/io.h> -#include <linux/export.h> -#include <linux/time.h> - -#include <asm/proc-fns.h> -#include <asm/cpuidle.h> -#include <mach/regs-clock.h> - -#include "common.h" - -static DEFINE_PER_CPU(struct cpuidle_device, exynos4_cpuidle_device); - -static struct cpuidle_driver exynos4_idle_driver = { - .name = "exynos4_idle", - .owner = THIS_MODULE, - .states = { - [0] = ARM_CPUIDLE_WFI_STATE, - }, - .state_count = 1, - .safe_state_index = 0, -}; - -static void __init exynos5_core_down_clk(void) -{ - unsigned int tmp; - - /* - * Enable arm clock down (in idle) and set arm divider - * ratios in WFI/WFE state. - */ - tmp = PWR_CTRL1_CORE2_DOWN_RATIO | \ - PWR_CTRL1_CORE1_DOWN_RATIO | \ - PWR_CTRL1_DIV2_DOWN_EN | \ - PWR_CTRL1_DIV1_DOWN_EN | \ - PWR_CTRL1_USE_CORE1_WFE | \ - PWR_CTRL1_USE_CORE0_WFE | \ - PWR_CTRL1_USE_CORE1_WFI | \ - PWR_CTRL1_USE_CORE0_WFI; - __raw_writel(tmp, EXYNOS5_PWR_CTRL1); - - /* - * Enable arm clock up (on exiting idle). Set arm divider - * ratios when not in idle along with the standby duration - * ratios. - */ - tmp = PWR_CTRL2_DIV2_UP_EN | \ - PWR_CTRL2_DIV1_UP_EN | \ - PWR_CTRL2_DUR_STANDBY2_VAL | \ - PWR_CTRL2_DUR_STANDBY1_VAL | \ - PWR_CTRL2_CORE2_UP_RATIO | \ - PWR_CTRL2_CORE1_UP_RATIO; - __raw_writel(tmp, EXYNOS5_PWR_CTRL2); -} - -int __init exynos4_init_cpuidle(void) -{ - int cpu_id, ret; - struct cpuidle_device *device; - - if (soc_is_exynos5250()) - exynos5_core_down_clk(); - - ret = cpuidle_register_driver(&exynos4_idle_driver); - if (ret) { - printk(KERN_ERR "CPUidle failed to register driver\n"); - return ret; - } - - for_each_online_cpu(cpu_id) { - device = &per_cpu(exynos4_cpuidle_device, cpu_id); - device->cpu = cpu_id; - - ret = cpuidle_register_device(device); - if (ret) { - printk(KERN_ERR "CPUidle register device failed\n"); - return ret; - } - } - - return 0; -} diff --git a/drivers/cpuidle/Makefile b/drivers/cpuidle/Makefile index 0d8bd55..37c6178 100644 --- a/drivers/cpuidle/Makefile +++ b/drivers/cpuidle/Makefile @@ -6,4 +6,7 @@ obj-y += cpuidle.o driver.o governor.o sysfs.o governors/ obj-$(CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED) += coupled.o obj-$(CONFIG_CPU_IDLE_CALXEDA) += cpuidle-calxeda.o +ifeq ($(CONFIG_ARCH_EXYNOS),y) + obj-y += cpuidle-exynos.o +endif obj-$(CONFIG_ARCH_KIRKWOOD) += cpuidle-kirkwood.o diff --git a/drivers/cpuidle/cpuidle-exynos.c b/drivers/cpuidle/cpuidle-exynos.c new file mode 100644 index 0000000..1c592d2 --- /dev/null +++ b/drivers/cpuidle/cpuidle-exynos.c @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/cpuidle.h> +#include <linux/cpu_pm.h> +#include <linux/io.h> +#include <linux/export.h> +#include <linux/time.h> + +#include <asm/proc-fns.h> +#include <asm/cpuidle.h> +#include <mach/regs-clock.h> + +static DEFINE_PER_CPU(struct cpuidle_device, exynos4_cpuidle_device); + +static struct cpuidle_driver exynos4_idle_driver = { + .name = "exynos4_idle", + .owner = THIS_MODULE, + .states = { + [0] = ARM_CPUIDLE_WFI_STATE, + }, + .state_count = 1, + .safe_state_index = 0, +}; + +static void __init exynos5_core_down_clk(void) +{ + unsigned int tmp; + + /* + * Enable arm clock down (in idle) and set arm divider + * ratios in WFI/WFE state. + */ + tmp = PWR_CTRL1_CORE2_DOWN_RATIO | \ + PWR_CTRL1_CORE1_DOWN_RATIO | \ + PWR_CTRL1_DIV2_DOWN_EN | \ + PWR_CTRL1_DIV1_DOWN_EN | \ + PWR_CTRL1_USE_CORE1_WFE | \ + PWR_CTRL1_USE_CORE0_WFE | \ + PWR_CTRL1_USE_CORE1_WFI | \ + PWR_CTRL1_USE_CORE0_WFI; + __raw_writel(tmp, EXYNOS5_PWR_CTRL1); + + /* + * Enable arm clock up (on exiting idle). Set arm divider + * ratios when not in idle along with the standby duration + * ratios. + */ + tmp = PWR_CTRL2_DIV2_UP_EN | \ + PWR_CTRL2_DIV1_UP_EN | \ + PWR_CTRL2_DUR_STANDBY2_VAL | \ + PWR_CTRL2_DUR_STANDBY1_VAL | \ + PWR_CTRL2_CORE2_UP_RATIO | \ + PWR_CTRL2_CORE1_UP_RATIO; + __raw_writel(tmp, EXYNOS5_PWR_CTRL2); +} + +int __init exynos4_init_cpuidle(void) +{ + int cpu_id, ret; + struct cpuidle_device *device; + + if (soc_is_exynos5250()) + exynos5_core_down_clk(); + + ret = cpuidle_register_driver(&exynos4_idle_driver); + if (ret) { + printk(KERN_ERR "CPUidle failed to register driver\n"); + return ret; + } + + for_each_online_cpu(cpu_id) { + device = &per_cpu(exynos4_cpuidle_device, cpu_id); + device->cpu = cpu_id; + + ret = cpuidle_register_device(device); + if (ret) { + printk(KERN_ERR "CPUidle register device failed\n"); + return ret; + } + } + + return 0; +} -- 1.8.2.3 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
