cregit-Linux how code gets into the kernel

Release 4.11 arch/arm/mach-s3c24xx/pm-s3c2416.c

/* linux/arch/arm/mach-s3c2416/pm.c
 *
 * Copyright (c) 2010 Samsung Electronics Co., Ltd.
 *              http://www.samsung.com
 *
 * S3C2416 - PM support (Based on Ben Dooks' S3C2412 PM support)
 *
 * 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/device.h>
#include <linux/syscore_ops.h>
#include <linux/io.h>

#include <asm/cacheflush.h>

#include <mach/regs-s3c2443-clock.h>

#include <plat/cpu.h>
#include <plat/pm.h>

#include "s3c2412-power.h"

#ifdef CONFIG_PM_SLEEP
extern void s3c2412_sleep_enter(void);


static int s3c2416_cpu_suspend(unsigned long arg) { /* enable wakeup sources regardless of battery state */ __raw_writel(S3C2443_PWRCFG_SLEEP, S3C2443_PWRCFG); /* set the mode as sleep, 2BED represents "Go to BED" */ __raw_writel(0x2BED, S3C2443_PWRMODE); s3c2412_sleep_enter(); pr_info("Failed to suspend the system\n"); return 1; /* Aborting suspend */ }

Contributors

PersonTokensPropCommitsCommitProp
Abhilash Kesavan3181.58%250.00%
Russell King718.42%250.00%
Total38100.00%4100.00%


static void s3c2416_pm_prepare(void) { /* * write the magic value u-boot uses to check for resume into * the INFORM0 register, and ensure INFORM1 is set to the * correct address to resume from. */ __raw_writel(0x2BED, S3C2412_INFORM0); __raw_writel(__pa_symbol(s3c_cpu_resume), S3C2412_INFORM1); }

Contributors

PersonTokensPropCommitsCommitProp
Abhilash Kesavan2596.15%150.00%
Florian Fainelli13.85%150.00%
Total26100.00%2100.00%


static int s3c2416_pm_add(struct device *dev, struct subsys_interface *sif) { pm_cpu_prep = s3c2416_pm_prepare; pm_cpu_sleep = s3c2416_cpu_suspend; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Abhilash Kesavan2074.07%133.33%
Heiko Stübner518.52%133.33%
Kay Sievers27.41%133.33%
Total27100.00%3100.00%

static struct subsys_interface s3c2416_pm_interface = { .name = "s3c2416_pm", .subsys = &s3c2416_subsys, .add_dev = s3c2416_pm_add, };
static __init int s3c2416_pm_init(void) { return subsys_interface_register(&s3c2416_pm_interface); }

Contributors

PersonTokensPropCommitsCommitProp
Abhilash Kesavan850.00%133.33%
Rafael J. Wysocki637.50%133.33%
Kay Sievers212.50%133.33%
Total16100.00%3100.00%

arch_initcall(s3c2416_pm_init); #endif
static void s3c2416_pm_resume(void) { /* unset the return-from-sleep amd inform flags */ __raw_writel(0x0, S3C2443_PWRMODE); __raw_writel(0x0, S3C2412_INFORM0); __raw_writel(0x0, S3C2412_INFORM1); }

Contributors

PersonTokensPropCommitsCommitProp
Abhilash Kesavan2893.33%150.00%
Rafael J. Wysocki26.67%150.00%
Total30100.00%2100.00%

struct syscore_ops s3c2416_pm_syscore_ops = { .resume = s3c2416_pm_resume, };

Overall Contributors

PersonTokensPropCommitsCommitProp
Abhilash Kesavan14568.08%220.00%
Rafael J. Wysocki2712.68%110.00%
Kay Sievers198.92%110.00%
Russell King73.29%220.00%
Heiko Stübner52.35%110.00%
Arnd Bergmann52.35%110.00%
Kukjin Kim41.88%110.00%
Florian Fainelli10.47%110.00%
Total213100.00%10100.00%
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