diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-s3c64xx/cpuidle.c')
-rw-r--r-- | ANDROID_3.4.5/arch/arm/mach-s3c64xx/cpuidle.c | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-s3c64xx/cpuidle.c b/ANDROID_3.4.5/arch/arm/mach-s3c64xx/cpuidle.c deleted file mode 100644 index 179460f3..00000000 --- a/ANDROID_3.4.5/arch/arm/mach-s3c64xx/cpuidle.c +++ /dev/null @@ -1,91 +0,0 @@ -/* linux/arch/arm/mach-s3c64xx/cpuidle.c - * - * Copyright (c) 2011 Wolfson Microelectronics, plc - * 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/io.h> -#include <linux/export.h> -#include <linux/time.h> - -#include <asm/proc-fns.h> - -#include <mach/map.h> - -#include <mach/regs-sys.h> -#include <mach/regs-syscon-power.h> - -static int s3c64xx_enter_idle(struct cpuidle_device *dev, - struct cpuidle_driver *drv, - int index) -{ - struct timeval before, after; - unsigned long tmp; - int idle_time; - - local_irq_disable(); - do_gettimeofday(&before); - - /* Setup PWRCFG to enter idle mode */ - tmp = __raw_readl(S3C64XX_PWR_CFG); - tmp &= ~S3C64XX_PWRCFG_CFG_WFI_MASK; - tmp |= S3C64XX_PWRCFG_CFG_WFI_IDLE; - __raw_writel(tmp, S3C64XX_PWR_CFG); - - cpu_do_idle(); - - do_gettimeofday(&after); - local_irq_enable(); - idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC + - (after.tv_usec - before.tv_usec); - - dev->last_residency = idle_time; - return index; -} - -static struct cpuidle_state s3c64xx_cpuidle_set[] = { - [0] = { - .enter = s3c64xx_enter_idle, - .exit_latency = 1, - .target_residency = 1, - .flags = CPUIDLE_FLAG_TIME_VALID, - .name = "IDLE", - .desc = "System active, ARM gated", - }, -}; - -static struct cpuidle_driver s3c64xx_cpuidle_driver = { - .name = "s3c64xx_cpuidle", - .owner = THIS_MODULE, - .state_count = ARRAY_SIZE(s3c64xx_cpuidle_set), -}; - -static struct cpuidle_device s3c64xx_cpuidle_device = { - .state_count = ARRAY_SIZE(s3c64xx_cpuidle_set), -}; - -static int __init s3c64xx_init_cpuidle(void) -{ - int ret; - - memcpy(s3c64xx_cpuidle_driver.states, s3c64xx_cpuidle_set, - sizeof(s3c64xx_cpuidle_set)); - cpuidle_register_driver(&s3c64xx_cpuidle_driver); - - ret = cpuidle_register_device(&s3c64xx_cpuidle_device); - if (ret) { - pr_err("Failed to register cpuidle device: %d\n", ret); - return ret; - } - - return 0; -} -device_initcall(s3c64xx_init_cpuidle); |