static int s3c_pm_enter(suspend_state_t state)
{
static unsigned long regs_save[16];
s3c_pm_debug_init();
S3C_PMDBG("%s(%d)\n", __func__, state);
if (pm_cpu_prep == NULL || pm_cpu_sleep == NULL) {
printk(KERN_ERR "%s: error: no cpu sleep function\n", __func__);
return -EINVAL;
}
if (!any_allowed(s3c_irqwake_intmask, s3c_irqwake_intallow) &&
!any_allowed(s3c_irqwake_eintmask, s3c_irqwake_eintallow)) {
printk(KERN_ERR "%s: No wake-up sources!\n", __func__);
printk(KERN_ERR "%s: Aborting sleep\n", __func__);
return -EINVAL;
}
s3c_sleep_save_phys = virt_to_phys(regs_save);
S3C_PMDBG("s3c_sleep_save_phys=0x%08lx\n", s3c_sleep_save_phys);
s3c_pm_save_gpios();
s3c_pm_save_uarts();
s3c_pm_save_core();
s3c_pm_configure_extint();
S3C_PMDBG("sleep: irq wakeup masks: %08lx,%08lx\n",
s3c_irqwake_intmask, s3c_irqwake_eintmask);
s3c_pm_arch_prepare_irqs();
pm_cpu_prep();
flush_cache_all();
s3c_pm_check_store();
s3c_pm_arch_stop_clocks();
s3c_cpu_save(regs_save);
cpu_init();
s3c_pm_restore_core();
s3c_pm_restore_uarts();
s3c_pm_restore_gpios();
s3c_pm_debug_init();
s3c_pm_arch_show_resume_irqs();
S3C_PMDBG("%s: post sleep, preparing to return\n", __func__);
s3c_pm_debug_smdkled(1 << 1, 0);
s3c_pm_check_restore();
S3C_PMDBG("S3C PM Resume (post-restore)\n");
return 0;
}
static int s3c_pm_enter(suspend_state_t state)
{
/* ensure the debug is initialised (if enabled) */
s3c_pm_debug_init();
S3C_PMDBG("%s(%d)\n", __func__, state);
if (pm_cpu_prep == NULL || pm_cpu_sleep == NULL) {
printk(KERN_ERR "%s: error: no cpu sleep function\n", __func__);
return -EINVAL;
}
/* check if we have anything to wake-up with... bad things seem
* to happen if you suspend with no wakeup (system will often
* require a full power-cycle)
*/
if (!any_allowed(s3c_irqwake_intmask, s3c_irqwake_intallow) &&
!any_allowed(s3c_irqwake_eintmask, s3c_irqwake_eintallow)) {
printk(KERN_ERR "%s: No wake-up sources!\n", __func__);
printk(KERN_ERR "%s: Aborting sleep\n", __func__);
return -EINVAL;
}
/* save all necessary core registers not covered by the drivers */
s3c_pm_save_gpios();
s3c_pm_saved_gpios();
s3c_pm_save_uarts();
s3c_pm_save_core();
/* set the irq configuration for wake */
s3c_pm_configure_extint();
S3C_PMDBG("sleep: irq wakeup masks: %08lx,%08lx\n",
s3c_irqwake_intmask, s3c_irqwake_eintmask);
s3c_pm_arch_prepare_irqs();
/* call cpu specific preparation */
pm_cpu_prep();
/* flush cache back to ram */
flush_cache_all();
s3c_pm_check_store();
/* send the cpu to sleep... */
s3c_pm_arch_stop_clocks();
printk(KERN_ALERT "PM: SLEEP\n");
/* s3c_cpu_save will also act as our return point from when
* we resume as it saves its own register state and restores it
* during the resume. */
s3c_cpu_save(0, PLAT_PHYS_OFFSET - PAGE_OFFSET);
/* restore the cpu state using the kernel's cpu init code. */
cpu_init();
s3c_pm_restore_core();
s3c_pm_restore_uarts();
s3c_pm_restore_gpios();
s3c_pm_restored_gpios();
s3c_pm_debug_init();
/* restore the system state */
if (pm_cpu_restore)
pm_cpu_restore();
/* check what irq (if any) restored the system */
s3c_pm_arch_show_resume_irqs();
S3C_PMDBG("%s: post sleep, preparing to return\n", __func__);
/* LEDs should now be 1110 */
s3c_pm_debug_smdkled(1 << 1, 0);
s3c_pm_check_restore();
/* ok, let's return from sleep */
S3C_PMDBG("S3C PM Resume (post-restore)\n");
return 0;
}
static int s3c_pm_enter(suspend_state_t state)
{
int ret;
/* ensure the debug is initialised (if enabled) */
s3c_pm_debug_init();
printk("%s(%d)\n", __func__, state);
if (pm_cpu_prep == NULL || pm_cpu_sleep == NULL) {
printk(KERN_ERR "%s: error: no cpu sleep function\n", __func__);
return -EINVAL;
}
/* check if we have anything to wake-up with... bad things seem
* to happen if you suspend with no wakeup (system will often
* require a full power-cycle)
*/
if (!of_have_populated_dt() &&
!any_allowed(s3c_irqwake_intmask, s3c_irqwake_intallow) &&
!any_allowed(s3c_irqwake_eintmask, s3c_irqwake_eintallow)) {
printk(KERN_ERR "%s: No wake-up sources!\n", __func__);
printk(KERN_ERR "%s: Aborting sleep\n", __func__);
return -EINVAL;
}
/* save all necessary core registers not covered by the drivers */
if (!of_have_populated_dt()) {
samsung_pm_save_gpios();
samsung_pm_saved_gpios();
}
s3c_pm_save_uarts();
s3c_pm_save_core();
/* set the irq configuration for wake */
s3c_pm_configure_extint();
s3c_pm_arch_prepare_irqs();
/* call cpu specific preparation */
pm_cpu_prep();
s3c_pm_check_store();
/* send the cpu to sleep... */
s3c_pm_arch_stop_clocks();
#ifdef CONFIG_RTC_TICK_SLEEP_AGING_TEST
if (rtc_tick_wakeup_enable)
s3c_rtc_tick_control(1);
#endif
/* this will also act as our return point from when
* we resume as it saves its own register state and restores it
* during the resume. */
ret = cpu_suspend(0, pm_cpu_sleep);
#ifdef CONFIG_RTC_TICK_SLEEP_AGING_TEST
if (rtc_tick_wakeup_enable)
s3c_rtc_tick_control(0);
#endif
if (ret)
return ret;
/* restore the system state */
s3c_pm_restore_core();
s3c_pm_restore_uarts();
if (!of_have_populated_dt()) {
samsung_pm_restore_gpios();
s3c_pm_restored_gpios();
}
s3c_pm_debug_init();
/* check what irq (if any) restored the system */
s3c_pm_arch_show_resume_irqs();
S3C_PMDBG("%s: post sleep, preparing to return\n", __func__);
/* LEDs should now be 1110 */
s3c_pm_debug_smdkled(1 << 1, 0);
s3c_pm_check_restore();
/* ok, let's return from sleep */
S3C_PMDBG("S3C PM Resume (post-restore)\n");
return 0;
}
static int s3c_pm_enter(suspend_state_t state)
{
static unsigned long regs_save[16];
unsigned int gpio;
/* ensure the debug is initialised (if enabled) */
s3c_pm_debug_init();
S3C_PMDBG("%s(%d)\n", __func__, state);
if (pm_cpu_prep == NULL || pm_cpu_sleep == NULL) {
printk(KERN_ERR "%s: error: no cpu sleep function\n", __func__);
return -EINVAL;
}
/* check if we have anything to wake-up with... bad things seem
* to happen if you suspend with no wakeup (system will often
* require a full power-cycle)
*/
if (!any_allowed(s3c_irqwake_intmask, s3c_irqwake_intallow) &&
!any_allowed(s3c_irqwake_eintmask, s3c_irqwake_eintallow)) {
printk(KERN_ERR "%s: No wake-up sources!\n", __func__);
printk(KERN_ERR "%s: Aborting sleep\n", __func__);
return -EINVAL;
}
/* store the physical address of the register recovery block */
s3c_sleep_save_phys = virt_to_phys(regs_save);
S3C_PMDBG("s3c_sleep_save_phys=0x%08lx\n", s3c_sleep_save_phys);
/* save all necessary core registers not covered by the drivers */
#if 0
/* control power of moviNAND at PM and add 700ms delay for stabilization of moviNAND. */
gpio = readl(S5PV210_GPJ2DAT);
writel(gpio & (~0x80), S5PV210_GPJ2DAT);
mdelay(700);
#endif
s3c_pm_save_gpios();
s3c_pm_save_uarts();
s3c_pm_save_core();
config_sleep_gpio();
/* set the irq configuration for wake */
s3c_pm_configure_extint();
S3C_PMDBG("sleep: irq wakeup masks: %08lx,%08lx\n",
s3c_irqwake_intmask, s3c_irqwake_eintmask);
s3c_pm_arch_prepare_irqs();
/* call cpu specific preparation */
pm_cpu_prep();
/* flush cache back to ram */
flush_cache_all();
s3c_pm_check_store();
/* clear wakeup_stat register for next wakeup reason */
__raw_writel(__raw_readl(S5P_WAKEUP_STAT), S5P_WAKEUP_STAT);
/* send the cpu to sleep... */
s3c_pm_arch_stop_clocks();
/* s3c_cpu_save will also act as our return point from when
* we resume as it saves its own register state and restores it
* during the resume. */
pmstats->sleep_count++;
pmstats->sleep_freq = __raw_readl(S5P_CLK_DIV0);
s3c_cpu_save(regs_save);
pmstats->wake_count++;
pmstats->wake_freq = __raw_readl(S5P_CLK_DIV0);
/* restore the cpu state using the kernel's cpu init code. */
cpu_init();
fiq_glue_resume();
local_fiq_enable();
s3c_pm_restore_core();
s3c_pm_restore_uarts();
s3c_pm_restore_gpios();
s5pv210_restore_eint_group();
s3c_pm_debug_init();
/* restore the system state */
if (pm_cpu_restore)
pm_cpu_restore();
/* check what irq (if any) restored the system */
s3c_pm_arch_show_resume_irqs();
S3C_PMDBG("%s: post sleep, preparing to return\n", __func__);
/* LEDs should now be 1110 */
s3c_pm_debug_smdkled(1 << 1, 0);
s3c_pm_check_restore();
/* ok, let's return from sleep */
S3C_PMDBG("S3C PM Resume (post-restore)\n");
return 0;
}
*/
static int s3c_pm_enter(suspend_state_t state)
{
int tmp;
static unsigned long regs_save[16];
/* ensure the debug is initialised (if enabled) */
s3c_pm_debug_init();
S3C_PMDBG("%s(%d)\n", __func__, state);
if (pm_cpu_prep == NULL || pm_cpu_sleep == NULL) {
printk(KERN_ERR "%s: error: no cpu sleep function\n", __func__);
return -EINVAL;
}
//Apollo +
s5p_pad_pdn_control();
s3c_irqwake_intmask = 0xFFDF; // key
//Apollo -
/* check if we have anything to wake-up with... bad things seem
* to happen if you suspend with no wakeup (system will often
* require a full power-cycle)
*/
//printk("s3c_irqwake_intmask = 0x%08x, s3c_irqwake_intallow = 0x%08x+++++++\n", s3c_irqwake_intmask, s3c_irqwake_intallow);
//printk("s3c_irqwake_eintmask = 0x%08x, s3c_irqwake_eintallow = 0x%08x+++++++\n", s3c_irqwake_eintmask, s3c_irqwake_eintallow);
if (!any_allowed(s3c_irqwake_intmask, s3c_irqwake_intallow) &&
!any_allowed(s3c_irqwake_eintmask, s3c_irqwake_eintallow)) {
printk(KERN_ERR "%s: No wake-up sources!\n", __func__);
printk(KERN_ERR "%s: Aborting sleep\n", __func__);
return -EINVAL;
}
/* store the physical address of the register recovery block */
s3c_sleep_save_phys = virt_to_phys(regs_save);
//Apollo +
/* set flag for sleep mode idle2 flag is also reserved */
#define SLEEP_MODE 0
#define IDLE2_MODE 1
__raw_writel(SLEEP_MODE, S5P_INFORM1);
//Apollo -
S3C_PMDBG("s3c_sleep_save_phys=0x%08lx\n", s3c_sleep_save_phys);
/* save all necessary core registers not covered by the drivers */
s3c_pm_save_gpios();
s3c_pm_save_uarts();
s3c_pm_save_core();
//Apollo +
s3c_config_sleep_gpio(); //ÅäÖÃÐÝÃßʱ¸÷io״̬
//Apollo -
/* set the irq configuration for wake */
s3c_pm_configure_extint();
//printk(KERN_INFO"sleep: irq wakeup masks: %08lx,%08lx\n", s3c_irqwake_intmask, s3c_irqwake_eintmask);
s3c_irqwake_intmask = 0xFFDF;
s3c_pm_arch_prepare_irqs();
/* call cpu specific preparation */
pm_cpu_prep();
/* flush cache back to ram */
flush_cache_all();
s3c_pm_check_store();
/* clear wakeup_stat register for next wakeup reason */
__raw_writel(__raw_readl(S5P_WAKEUP_STAT), S5P_WAKEUP_STAT);
/* send the cpu to sleep... */
s3c_pm_arch_stop_clocks();
/* s3c_cpu_save will also act as our return point from when
* we resume as it saves its own register state and restores it
* during the resume. */
pmstats->sleep_count++;
pmstats->sleep_freq = __raw_readl(S5P_CLK_DIV0);
s3c_cpu_save(regs_save);
pmstats->wake_count++;
pmstats->wake_freq = __raw_readl(S5P_CLK_DIV0);
/* restore the cpu state using the kernel's cpu init code. */
cpu_init();
tmp = readl(S5P_WAKEUP_STAT);
fiq_glue_resume();
local_fiq_enable();
s3c_pm_restore_core();
s3c_pm_restore_uarts();
s3c_pm_restore_gpios();
s5pv210_restore_eint_group();
s3c_pm_debug_init();
/* restore the system state */
if (pm_cpu_restore)
pm_cpu_restore();
/* check what irq (if any) restored the system */
s3c_pm_arch_show_resume_irqs();
S3C_PMDBG("%s: post sleep, preparing to return\n", __func__);
/* LEDs should now be 1110 */
// s3c_pm_debug_smdkled(1 << 1, 0);
s3c_pm_check_restore();
/* ok, let's return from sleep */
S3C_PMDBG("S3C PM Resume (post-restore)\n");
static int s3c_pm_enter(suspend_state_t state)
{
/* ensure the debug is initialised (if enabled) */
s3c_pm_debug_init();
S3C_PMDBG("%s(%d)\n", __func__, state);
if (pm_cpu_prep == NULL || pm_cpu_sleep == NULL) {
printk(KERN_ERR "%s: error: no cpu sleep function\n", __func__);
return -EINVAL;
}
/* check if we have anything to wake-up with... bad things seem
* to happen if you suspend with no wakeup (system will often
* require a full power-cycle)
*/
if (!any_allowed(s3c_irqwake_intmask, s3c_irqwake_intallow) &&
!any_allowed(s3c_irqwake_eintmask, s3c_irqwake_eintallow)) {
printk(KERN_ERR "%s: No wake-up sources!\n", __func__);
printk(KERN_ERR "%s: Aborting sleep\n", __func__);
return -EINVAL;
}
if (pm_check_eint_pend) {
u32 pending_eint = pm_check_eint_pend();
if (pending_eint) {
pr_warn("%s: Aborting sleep, EINT PENDING(0x%08x)\n",
__func__, pending_eint);
return -EBUSY;
}
}
/* save all necessary core registers not covered by the drivers */
s3c_pm_save_gpios();
s3c_pm_saved_gpios();
s3c_pm_save_uarts();
s3c_pm_save_core();
/* set the irq configuration for wake */
s3c_pm_configure_extint();
S3C_PMDBG("sleep: irq wakeup masks: %08lx,%08lx\n",
s3c_irqwake_intmask, s3c_irqwake_eintmask);
s3c_pm_arch_prepare_irqs();
/* call cpu specific preparation */
pm_cpu_prep();
/* flush cache back to ram */
flush_cache_all();
s3c_pm_check_store();
#ifdef CONFIG_FAST_BOOT
if (fake_shut_down) {
/* Masking external wake up source
* only enable power key, FUEL ALERT, AP/IF PMIC IRQ */
__raw_writel(0xff77df7f, S5P_EINT_WAKEUP_MASK);
/* disable all system int */
__raw_writel(0xffffffff, S5P_WAKEUP_MASK);
}
#endif
/* send the cpu to sleep... */
s3c_pm_arch_stop_clocks();
printk(KERN_ALERT "PM: SLEEP\n");
/* s3c_cpu_save will also act as our return point from when
* we resume as it saves its own register state and restores it
* during the resume. */
printk(KERN_ALERT "ARM_COREx_STATUS CORE1[0x%08x], CORE2[0x%08x], CORE3[0x%08x]\n",
__raw_readl(S5P_VA_PMU + 0x2084),
__raw_readl(S5P_VA_PMU + 0x2104),
__raw_readl(S5P_VA_PMU + 0x2184));
s3c_cpu_save(0, PLAT_PHYS_OFFSET - PAGE_OFFSET);
/* restore the cpu state using the kernel's cpu init code. */
cpu_init();
#ifdef CONFIG_FAST_BOOT
fake_shut_down = false;
#endif
s3c_pm_restore_core();
s3c_pm_restore_uarts();
s3c_pm_restore_gpios();
s3c_pm_restored_gpios();
s3c_pm_debug_init();
/* restore the system state */
if (pm_cpu_restore)
pm_cpu_restore();
/* check what irq (if any) restored the system */
s3c_pm_arch_show_resume_irqs();
S3C_PMDBG("%s: post sleep, preparing to return\n", __func__);
/* LEDs should now be 1110 */
s3c_pm_debug_smdkled(1 << 1, 0);
s3c_pm_check_restore();
/* ok, let's return from sleep */
S3C_PMDBG("S3C PM Resume (post-restore)\n");
#ifdef CONFIG_SLP_WAKEUP_COUNT
wakeup_state = 1;
wakeup_counter = wakeup_counter + 1;
#endif
return 0;
}
static int s3c_pm_enter(suspend_state_t state)
{
/* */
s3c_pm_debug_init();
S3C_PMDBG("%s(%d)\n", __func__, state);
if (pm_cpu_prep == NULL || pm_cpu_sleep == NULL) {
printk(KERN_ERR "%s: error: no cpu sleep function\n", __func__);
return -EINVAL;
}
/*
*/
if (!any_allowed(s3c_irqwake_intmask, s3c_irqwake_intallow) &&
!any_allowed(s3c_irqwake_eintmask, s3c_irqwake_eintallow)) {
printk(KERN_ERR "%s: No wake-up sources!\n", __func__);
printk(KERN_ERR "%s: Aborting sleep\n", __func__);
return -EINVAL;
}
/* */
samsung_pm_save_gpios();
samsung_pm_saved_gpios();
s3c_pm_save_uarts();
s3c_pm_save_core();
/* */
s3c_pm_configure_extint();
S3C_PMDBG("sleep: irq wakeup masks: %08lx,%08lx\n",
s3c_irqwake_intmask, s3c_irqwake_eintmask);
s3c_pm_arch_prepare_irqs();
/* */
pm_cpu_prep();
/* */
flush_cache_all();
s3c_pm_check_store();
/* */
s3c_pm_arch_stop_clocks();
/*
*/
cpu_suspend(0, pm_cpu_sleep);
/* */
s3c_pm_restore_core();
s3c_pm_restore_uarts();
samsung_pm_restore_gpios();
s3c_pm_restored_gpios();
s3c_pm_debug_init();
/* */
s3c_pm_arch_show_resume_irqs();
S3C_PMDBG("%s: post sleep, preparing to return\n", __func__);
/* */
s3c_pm_debug_smdkled(1 << 1, 0);
s3c_pm_check_restore();
/* */
S3C_PMDBG("S3C PM Resume (post-restore)\n");
return 0;
}
static int s3c_pm_enter(suspend_state_t state)
{
static unsigned long regs_save[16];
/* ensure the debug is initialised (if enabled) */
s3c_pm_debug_init();
S3C_PMDBG("%s(%d)\n", __func__, state);
if (pm_cpu_prep == NULL || pm_cpu_sleep == NULL) {
printk(KERN_ERR "%s: error: no cpu sleep function\n", __func__);
return -EINVAL;
}
/* check if we have anything to wake-up with... bad things seem
* to happen if you suspend with no wakeup (system will often
* require a full power-cycle)
*/
if (!any_allowed(s3c_irqwake_intmask, s3c_irqwake_intallow) &&
!any_allowed(s3c_irqwake_eintmask, s3c_irqwake_eintallow)) {
printk(KERN_ERR "%s: No wake-up sources!\n", __func__);
printk(KERN_ERR "%s: Aborting sleep\n", __func__);
return -EINVAL;
}
/* store the physical address of the register recovery block */
s3c_sleep_save_phys = virt_to_phys(regs_save);
S3C_PMDBG("s3c_sleep_save_phys=0x%08lx\n", s3c_sleep_save_phys);
/* save all necessary core registers not covered by the drivers */
s3c_pm_save_gpios();
s3c_pm_save_uarts();
s3c_pm_save_core();
s3c_config_sleep_gpio();
/* set the irq configuration for wake */
s3c_pm_configure_extint();
S3C_PMDBG("sleep: irq wakeup masks: %08lx,%08lx\n",
s3c_irqwake_intmask, s3c_irqwake_eintmask);
s3c_pm_arch_prepare_irqs();
/* call cpu specific preparation */
#if defined(CONFIG_WIMAX) || defined(CONFIG_WIMAX_MODULE) //cky 20101116 WiMAX ext-interrupt
/* FIXME
if (gpio_get_value(GPIO_WIMAX_EN))
{
DBG("WIMAX POWER ON!! Set WIMAX_INT as Ext-Int.\n");
s3c_pm_set_eint(6, 0x0); // WIMAX_INT: GPH0(6); LOW LEVEL DETECT
}
*/
#endif
#ifdef FEATURE_FTM_SLEEP
s3c_pm_check_auto_wakeup();
#endif
pm_cpu_prep();
/* flush cache back to ram */
flush_cache_all();
s3c_pm_check_store();
/* clear wakeup_stat register for next wakeup reason */
__raw_writel(__raw_readl(S5P_WAKEUP_STAT), S5P_WAKEUP_STAT);
/* send the cpu to sleep... */
s3c_pm_arch_stop_clocks();
/* s3c_cpu_save will also act as our return point from when
* we resume as it saves its own register state and restores it
* during the resume. */
pmstats->sleep_count++;
pmstats->sleep_freq = __raw_readl(S5P_CLK_DIV0);
s3c_cpu_save(regs_save);
pmstats->wake_count++;
pmstats->wake_freq = __raw_readl(S5P_CLK_DIV0);
/* restore the cpu state using the kernel's cpu init code. */
cpu_init();
fiq_glue_resume();
local_fiq_enable();
s3c_pm_restore_core();
s3c_pm_restore_uarts();
s3c_pm_restore_gpios();
s5pv210_restore_eint_group();
s3c_pm_debug_init();
/* restore the system state */
if (pm_cpu_restore)
pm_cpu_restore();
/* check what irq (if any) restored the system */
s3c_pm_arch_show_resume_irqs();
S3C_PMDBG("%s: post sleep, preparing to return\n", __func__);
/* LEDs should now be 1110 */
s3c_pm_debug_smdkled(1 << 1, 0);
#if defined(CONFIG_WIMAX) || defined(CONFIG_WIMAX_MODULE) //cky 20101116 ext-int for wimax
/* FIXME
if (gpio_get_value(GPIO_WIMAX_EN))
{
DBG("WIMAX POWER ON!! Set WIMAX_INT: INPUT.\n");
s3c_pm_clear_eint(6);
s3c_gpio_cfgpin(GPIO_WIMAX_INT, S3C_GPIO_INPUT);
s3c_gpio_setpull(GPIO_WIMAX_INT, S3C_GPIO_PULL_UP);
}
*/
#endif
#ifdef FEATURE_FTM_SLEEP
if (ftm_sleep == 1)
{
ftm_sleep = 0;
pm_disable_rtctic();
wake_lock_timeout(&ftm_wake_lock, 11 * HZ);
printk(KERN_DEBUG "pm_disable_rtctic...\n");
}
#endif
s3c_pm_check_restore();
/* ok, let's return from sleep */
S3C_PMDBG("S3C PM Resume (post-restore)\n");
return 0;
}
static int s3c_pm_enter(suspend_state_t state)
{
#ifndef USE_DMA_ALLOC
static unsigned long regs_save[16];
#endif /* !USE_DMA_ALLOC */
unsigned int tmp;
/* ensure the debug is initialised (if enabled) */
s3c_pm_debug_init();
S3C_PMDBG("%s(%d)\n", __func__, state);
if (pm_cpu_prep == NULL || pm_cpu_sleep == NULL) {
printk(KERN_ERR "%s: error: no cpu sleep function\n", __func__);
return -EINVAL;
}
/* check if we have anything to wake-up with... bad things seem
* to happen if you suspend with no wakeup (system will often
* require a full power-cycle)
*/
if (!any_allowed(s3c_irqwake_intmask, s3c_irqwake_intallow) &&
!any_allowed(s3c_irqwake_eintmask, s3c_irqwake_eintallow)) {
printk(KERN_ERR "%s: No wake-up sources!\n", __func__);
printk(KERN_ERR "%s: Aborting sleep\n", __func__);
return -EINVAL;
}
/* store the physical address of the register recovery block */
#ifndef USE_DMA_ALLOC
s3c_sleep_save_phys = virt_to_phys(regs_save);
#else
__raw_writel(phy_regs_save, S5P_INFORM2);
#endif /* !USE_DMA_ALLOC */
/* set flag for sleep mode idle2 flag is also reserved */
__raw_writel(SLEEP_MODE, S5P_INFORM1);
S3C_PMDBG("s3c_sleep_save_phys=0x%08lx\n", s3c_sleep_save_phys);
/* save all necessary core registers not covered by the drivers */
s3c_pm_save_gpios();
s3c_pm_save_uarts();
s3c_pm_save_core();
/* set the irq configuration for wake */
s3c_pm_configure_extint();
S3C_PMDBG("sleep: irq wakeup masks: %08lx,%08lx\n",
s3c_irqwake_intmask, s3c_irqwake_eintmask);
s3c_pm_arch_prepare_irqs();
/* call cpu specific preparation */
pm_cpu_prep();
/* flush cache back to ram */
flush_cache_all();
s3c_pm_check_store();
/* send the cpu to sleep... */
s3c_pm_arch_stop_clocks();
/* s3c_cpu_save will also act as our return point from when
* we resume as it saves its own register state and restores it
* during the resume. */
s3c_cpu_save(regs_save);
/* restore the cpu state using the kernel's cpu init code. */
cpu_init();
/* restore the system state */
s3c_pm_restore_core();
s3c_pm_restore_uarts();
s3c_pm_restore_gpios();
s3c_pm_debug_init();
/* check what irq (if any) restored the system */
s3c_pm_arch_show_resume_irqs();
S3C_PMDBG("%s: post sleep, preparing to return\n", __func__);
/* LEDs should now be 1110 */
s3c_pm_debug_smdkled(1 << 1, 0);
s3c_pm_check_restore();
/* ok, let's return from sleep */
S3C_PMDBG("S3C PM Resume (post-restore)\n");
return 0;
}
