static int __init exynos4_init_cpuidle(void)
{
int i, max_cpuidle_state, cpu_id;
struct cpuidle_device *device;
struct cpuidle_driver *drv = &exynos4_idle_driver;
/* Setup cpuidle driver */
drv->state_count = (sizeof(exynos4_cpuidle_set) /
sizeof(struct cpuidle_state));
max_cpuidle_state = drv->state_count;
for (i = 0; i < max_cpuidle_state; i++) {
memcpy(&drv->states[i], &exynos4_cpuidle_set[i],
sizeof(struct cpuidle_state));
}
cpuidle_register_driver(&exynos4_idle_driver);
for_each_cpu(cpu_id, cpu_online_mask) {
device = &per_cpu(exynos4_cpuidle_device, cpu_id);
device->cpu = cpu_id;
device->state_count = drv->state_count;
if (cpuidle_register_device(device)) {
printk(KERN_ERR "CPUidle register device failed\n,");
return -EIO;
}
}
/* Initialize CPU idle by registering the idle states */
static int s5p6442_init_cpuidle(void)
{
struct cpuidle_device *device;
cpuidle_register_driver(&s5p6442_idle_driver);
device = &per_cpu(s5p6442_cpuidle_device, smp_processor_id());
device->state_count = 1;
/* Wait for interrupt state */
device->states[0].enter = s5p6442_enter_idle_normal;
device->states[0].exit_latency = 1; /* uS */
device->states[0].target_residency = 10000;
device->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
strcpy(device->states[0].name, "IDLE");
strcpy(device->states[0].desc, "ARM clock gating - WFI");
if (cpuidle_register_device(device)) {
printk(KERN_ERR "s5p6442_init_cpuidle: Failed registering\n");
return -EIO;
}
spin_lock_init(&idle2_lock);
return 0;
}
/* Initialize CPU idle by registering the idle states */
static int xilinx_init_cpuidle(void)
{
unsigned int cpu;
struct cpuidle_device *device;
int ret;
ret = cpuidle_register_driver(&xilinx_idle_driver);
if (ret) {
pr_err("Registering Xilinx CpuIdle Driver failed.\n");
return ret;
}
for_each_possible_cpu(cpu) {
device = &per_cpu(xilinx_cpuidle_device, cpu);
device->state_count = XILINX_MAX_STATES;
device->cpu = cpu;
ret = cpuidle_register_device(device);
if (ret) {
pr_err("xilinx_init_cpuidle: Failed registering\n");
return ret;
}
}
pr_info("Xilinx CpuIdle Driver started\n");
return 0;
}
static int __init rk30_cpuidle_init(void)
{
struct cpuidle_device *dev;
unsigned int cpu;
int ret;
ret = cpuidle_register_driver(&rk30_cpuidle_driver);
if (ret) {
pr_err("failed to register cpuidle driver: %d\n", ret);
return ret;
}
for_each_possible_cpu(cpu) {
dev = &per_cpu(rk30_cpuidle_device, cpu);
dev->cpu = cpu;
dev->state_count = ARRAY_SIZE(rk30_cpuidle_states);
memcpy(dev->states, rk30_cpuidle_states, sizeof(rk30_cpuidle_states));
dev->safe_state = &dev->states[0];
ret = cpuidle_register_device(dev);
if (ret) {
pr_err("failed to register cpuidle device for cpu %u: %d\n", cpu, ret);
return ret;
}
}
return 0;
}
static int imx_cpuidle_register(struct imx_cpuidle_state *pstate)
{
struct cpuidle_device *device;
struct cpuidle_state *state = pstate->state;
int i;
cpuidle_register_driver(&imx_cpuidle_driver);
device = &per_cpu(imx_cpuidle_device, smp_processor_id());
device->state_count = pstate->state_number;
for (i = 0; i < device->state_count; i++) {
device->states[i].enter = state[i].enter;
device->states[i].exit_latency = state[i].exit_latency;
device->states[i].target_residency = state[i].target_residency;
device->states[i].flags = state[i].flags;
strcpy(device->states[i].name, state[i].name);
strcpy(device->states[i].desc, state[i].desc);
}
if (cpuidle_register_device(device)) {
printk(KERN_ERR "imx_cpuidle_register: Failed registering\n");
return -EIO;
}
return 0;
}
static int __init tegra_cpuidle_init(void)
{
unsigned int cpu;
int ret;
ret = cpuidle_register_driver(&tegra_idle);
if (ret)
return ret;
#ifdef CONFIG_PM_SLEEP
tegra_lp2_min_residency = tegra_cpu_lp2_min_residency();
tegra_lp2_exit_latency = tegra_cpu_power_good_time();
tegra_lp2_power_off_time = tegra_cpu_power_off_time();
ret = tegra_cpudile_init_soc();
if (ret)
return ret;
#endif
for_each_possible_cpu(cpu) {
if (tegra_cpuidle_register_device(cpu))
pr_err("CPU%u: error initializing idle loop\n", cpu);
}
register_pm_notifier(&tegra_cpuidle_pm_notifier);
return 0;
}
static int __init pseries_processor_idle_init(void)
{
int retval;
retval = pseries_idle_probe();
if (retval)
return retval;
pseries_cpuidle_driver_init();
retval = cpuidle_register_driver(&pseries_idle_driver);
if (retval) {
printk(KERN_DEBUG "Registration of pseries driver failed.\n");
return retval;
}
retval = pseries_idle_devices_init();
if (retval) {
pseries_idle_devices_uninit();
cpuidle_unregister_driver(&pseries_idle_driver);
return retval;
}
register_cpu_notifier(&setup_hotplug_notifier);
printk(KERN_DEBUG "pseries_idle_driver registered\n");
return 0;
}
void sh_mobile_setup_cpuidle(void)
{
struct cpuidle_device *dev = &cpuidle_dev;
struct cpuidle_driver *drv = &cpuidle_driver;
struct cpuidle_state *state;
int i;
for (i = 0; i < CPUIDLE_STATE_MAX; i++) {
drv->states[i].name[0] = '\0';
drv->states[i].desc[0] = '\0';
}
i = CPUIDLE_DRIVER_STATE_START;
state = &drv->states[i++];
snprintf(state->name, CPUIDLE_NAME_LEN, "C1");
strncpy(state->desc, "SuperH Sleep Mode", CPUIDLE_DESC_LEN);
state->exit_latency = 1;
state->target_residency = 1 * 2;
state->power_usage = 3;
state->flags = 0;
state->flags |= CPUIDLE_FLAG_TIME_VALID;
state->enter = cpuidle_sleep_enter;
drv->safe_state_index = i-1;
if (sh_mobile_sleep_supported & SUSP_SH_SF) {
state = &drv->states[i++];
snprintf(state->name, CPUIDLE_NAME_LEN, "C2");
strncpy(state->desc, "SuperH Sleep Mode [SF]",
CPUIDLE_DESC_LEN);
state->exit_latency = 100;
state->target_residency = 1 * 2;
state->power_usage = 1;
state->flags = 0;
state->flags |= CPUIDLE_FLAG_TIME_VALID;
state->enter = cpuidle_sleep_enter;
}
if (sh_mobile_sleep_supported & SUSP_SH_STANDBY) {
state = &drv->states[i++];
snprintf(state->name, CPUIDLE_NAME_LEN, "C3");
strncpy(state->desc, "SuperH Mobile Standby Mode [SF]",
CPUIDLE_DESC_LEN);
state->exit_latency = 2300;
state->target_residency = 1 * 2;
state->power_usage = 1;
state->flags = 0;
state->flags |= CPUIDLE_FLAG_TIME_VALID;
state->enter = cpuidle_sleep_enter;
}
drv->state_count = i;
dev->state_count = i;
cpuidle_register_driver(&cpuidle_driver);
cpuidle_register_device(dev);
}
/* Initialize CPU idle by registering the idle states */
static int kirkwood_init_cpuidle(void)
{
struct cpuidle_device *device;
cpuidle_register_driver(&kirkwood_idle_driver);
device = &per_cpu(kirkwood_cpuidle_device, smp_processor_id());
device->state_count = KIRKWOOD_MAX_STATES;
/* Wait for interrupt state */
device->states[0].enter = kirkwood_enter_idle;
device->states[0].exit_latency = 1;
device->states[0].target_residency = 10000;
device->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
strcpy(device->states[0].name, "WFI");
strcpy(device->states[0].desc, "Wait for interrupt");
/* Wait for interrupt and DDR self refresh state */
device->states[1].enter = kirkwood_enter_idle;
device->states[1].exit_latency = 10;
device->states[1].target_residency = 10000;
device->states[1].flags = CPUIDLE_FLAG_TIME_VALID;
strcpy(device->states[1].name, "DDR SR");
strcpy(device->states[1].desc, "WFI and DDR Self Refresh");
if (cpuidle_register_device(device)) {
printk(KERN_ERR "kirkwood_init_cpuidle: Failed registering\n");
return -EIO;
}
return 0;
}
int __devinit msm_cpuidle_init(void)
{
unsigned int cpu = 0;
int ret = 0;
msm_cpuidle_set_states();
ret = cpuidle_register_driver(&msm_cpuidle_driver);
if (ret)
pr_err("%s: failed to register cpuidle driver: %d\n",
__func__, ret);
for_each_possible_cpu(cpu) {
struct cpuidle_device *dev = &per_cpu(msm_cpuidle_devs, cpu);
dev->cpu = cpu;
msm_cpuidle_set_cpu_statedata(dev);
ret = cpuidle_register_device(dev);
if (ret) {
pr_err("%s: failed to register cpuidle device for "
"cpu %u: %d\n", __func__, cpu, ret);
return ret;
}
}
return 0;
}
int __init tegra30_cpuidle_init(void)
{
int ret;
unsigned int cpu;
struct cpuidle_device *dev;
struct cpuidle_driver *drv = &tegra_idle_driver;
#ifdef CONFIG_PM_SLEEP
tegra_tear_down_cpu = tegra30_tear_down_cpu;
#endif
ret = cpuidle_register_driver(&tegra_idle_driver);
if (ret) {
pr_err("CPUidle driver registration failed\n");
return ret;
}
for_each_possible_cpu(cpu) {
dev = &per_cpu(tegra_idle_device, cpu);
dev->cpu = cpu;
dev->state_count = drv->state_count;
ret = cpuidle_register_device(dev);
if (ret) {
pr_err("CPU%u: CPUidle device registration failed\n",
cpu);
return ret;
}
}
return 0;
}
/*
* bl_idle_init
*
* Registers the bl specific cpuidle driver with the cpuidle
* framework with the valid set of states.
*/
int __init bl_idle_init(void)
{
struct cpuidle_device *dev;
int i, cpu_id;
struct cpuidle_driver *drv = &bl_idle_driver;
if (!of_find_compatible_node(NULL, NULL, "arm,generic")) {
pr_info("%s: No compatible node found\n", __func__);
return -ENODEV;
}
drv->state_count = (sizeof(bl_cpuidle_set) /
sizeof(struct cpuidle_state));
for (i = 0; i < drv->state_count; i++) {
memcpy(&drv->states[i], &bl_cpuidle_set[i],
sizeof(struct cpuidle_state));
}
cpuidle_register_driver(drv);
for_each_cpu(cpu_id, cpu_online_mask) {
pr_err("CPUidle for CPU%d registered\n", cpu_id);
dev = &per_cpu(bl_idle_dev, cpu_id);
dev->cpu = cpu_id;
dev->state_count = drv->state_count;
if (cpuidle_register_device(dev)) {
printk(KERN_ERR "%s: Cpuidle register device failed\n",
__func__);
return -EIO;
}
}
static int __init acpi_processor_init(void)
{
int result = 0;
if (acpi_disabled)
return 0;
memset(&errata, 0, sizeof(errata));
#ifdef CONFIG_SMP
if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0,
(struct acpi_table_header **)&madt)))
madt = NULL;
#endif
#ifdef CONFIG_ACPI_PROCFS
acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);
if (!acpi_processor_dir)
return -ENOMEM;
#endif
/*
* Check whether the system is DMI table. If yes, OSPM
* should not use mwait for CPU-states.
*/
dmi_check_system(processor_idle_dmi_table);
if (!cpuidle_register_driver(&acpi_idle_driver)) {
printk(KERN_DEBUG "ACPI: %s registered with cpuidle\n",
acpi_idle_driver.name);
} else {
printk(KERN_DEBUG "ACPI: acpi_idle yielding to %s",
cpuidle_get_driver()->name);
}
result = acpi_bus_register_driver(&acpi_processor_driver);
if (result < 0)
goto out_cpuidle;
acpi_processor_install_hotplug_notify();
acpi_thermal_cpufreq_init();
acpi_processor_ppc_init();
acpi_processor_throttling_init();
return 0;
out_cpuidle:
cpuidle_unregister_driver(&acpi_idle_driver);
#ifdef CONFIG_ACPI_PROCFS
remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
#endif
return result;
}
int shmobile_cpuidle_init(void)
{
struct cpuidle_device *dev = &shmobile_cpuidle_dev;
cpuidle_register_driver(cpuidle_drv);
dev->state_count = cpuidle_drv->state_count;
cpuidle_register_device(dev);
return 0;
}
/**
* omap3_idle_init - Init routine for OMAP3 idle
*
* Registers the OMAP3 specific cpuidle driver with the cpuidle
* framework with the valid set of states.
*/
int __init omap3_idle_init(void)
{
int i, count = 0;
struct omap3_processor_cx *cx;
struct cpuidle_state *state;
struct cpuidle_device *dev;
mpu_pd = pwrdm_lookup("mpu_pwrdm");
core_pd = pwrdm_lookup("core_pwrdm");
per_pd = pwrdm_lookup("per_pwrdm");
cam_pd = pwrdm_lookup("cam_pwrdm");
omap_init_power_states();
cpuidle_register_driver(&omap3_idle_driver);
dev = &per_cpu(omap3_idle_dev, smp_processor_id());
for (i = OMAP3_STATE_C1; i < OMAP3_MAX_STATES; i++) {
cx = &omap3_power_states[i];
state = &dev->states[count];
if (!cx->valid)
continue;
cpuidle_set_statedata(state, cx);
state->exit_latency = cx->sleep_latency + cx->wakeup_latency;
state->target_residency = cx->threshold;
state->flags = cx->flags;
state->enter = (state->flags & CPUIDLE_FLAG_CHECK_BM) ?
omap3_enter_idle_bm : omap3_enter_idle;
if (cx->type == OMAP3_STATE_C1)
dev->safe_state = state;
sprintf(state->name, "C%d", count+1);
strncpy(state->desc, cx->desc, CPUIDLE_DESC_LEN);
count++;
}
if (!count)
return -EINVAL;
dev->state_count = count;
if (enable_off_mode)
omap3_cpuidle_update_states(PWRDM_POWER_OFF, PWRDM_POWER_OFF);
else
omap3_cpuidle_update_states(PWRDM_POWER_RET, PWRDM_POWER_RET);
if (cpuidle_register_device(dev)) {
printk(KERN_ERR "%s: CPUidle register device failed\n",
__func__);
return -EIO;
}
return 0;
}
static __init int omap3_idle_init(void)
{
int i, count = 0;
struct omap3_processor_cx *cx;
struct cpuidle_state *state;
struct cpuidle_device *dev;
printk(KERN_INFO "OMAP CPU idle driver initializing.\n");
cpuidle_register_driver(&omap3_idle_driver);
dev = &per_cpu(omap3_idle_dev, smp_processor_id());
for (i = 0; i < OMAP3_MAX_STATES; i++) {
cx = &omap3_power_states[i];
state = &dev->states[count];
if (!cx->valid)
continue;
cpuidle_set_statedata(state, cx);
state->exit_latency = cx->sleep_latency + cx->wakeup_latency;
state->target_residency = cx->threshold;
state->flags = cx->flags;
state->enter = (state->flags & CPUIDLE_FLAG_CHECK_BM) ?
omap3_enter_idle_bm : omap3_enter_idle;
if (cx->type == OMAP3_STATE_C3)
dev->safe_state = state;
snprintf(state->name, CPUIDLE_NAME_LEN, "C%d", count+1);
count++;
BUG_ON(count == CPUIDLE_STATE_MAX); /* harsh... oh well */
}
if (!count)
return -EINVAL; /* No valid states configured. */
dev->state_count = count;
if (cpuidle_register_device(dev)) {
printk(KERN_ERR "%s: CPUidle register device failed\n",
__FUNCTION__);
return -EIO;
}
create_pmproc_entry();
/* Initialize UART inactivity time */
uart_inactivity_timeout = msecs_to_jiffies(UART_TIME_OUT);
uart_last_awake = jiffies;
return 0;
}
static int kirkwood_init_cpuidle(void)
{
struct cpuidle_device *device;
device = &per_cpu(kirkwood_cpuidle_device, smp_processor_id());
device->state_count = KIRKWOOD_MAX_STATES;
cpuidle_register_driver(&kirkwood_idle_driver);
if (cpuidle_register_device(device)) {
printk(KERN_ERR "kirkwood_init_cpuidle: Failed registering\n");
return -EIO;
}
return 0;
}
/**
* omap4_idle_init - Init routine for OMAP4 idle
*
* Registers the OMAP4 specific cpuidle driver with the cpuidle
* framework with the valid set of states.
*/
int __init omap4_idle_init(void)
{
int cpu_id, i, count = 0;
struct omap4_processor_cx *cx;
struct cpuidle_state *state;
struct cpuidle_device *dev;
mpu_pd = pwrdm_lookup("mpu_pwrdm");
cpu1_pd = pwrdm_lookup("cpu1_pwrdm");
core_pd = pwrdm_lookup("core_pwrdm");
omap_init_power_states();
cpuidle_register_driver(&omap4_idle_driver);
for_each_cpu(cpu_id, cpu_online_mask) {
pr_err("CPUidle for CPU%d registered\n", cpu_id);
dev = &per_cpu(omap4_idle_dev, cpu_id);
dev->cpu = cpu_id;
count = 0;
for (i = OMAP4_STATE_C1; i < OMAP4_MAX_STATES; i++) {
cx = &omap4_power_states[i];
state = &dev->states[count];
if (!cx->valid)
continue;
cpuidle_set_statedata(state, cx);
state->exit_latency = cx->sleep_latency +
cx->wakeup_latency;
state->target_residency = cx->threshold;
state->flags = cx->flags;
if (cx->type == OMAP4_STATE_C1)
dev->safe_state = state;
state->enter = (state->flags & CPUIDLE_FLAG_CHECK_BM) ?
omap4_enter_idle_bm : omap4_enter_idle;
sprintf(state->name, "C%d", count+1);
strncpy(state->desc, cx->desc, CPUIDLE_DESC_LEN);
count++;
}
if (!count)
return -EINVAL;
dev->state_count = count;
if (cpuidle_register_device(dev)) {
printk(KERN_ERR "%s: CPUidle register device failed\n",
__func__);
return -EIO;
}
}
static int __init acpi_processor_init(void)
{
int result = 0;
memset(&errata, 0, sizeof(errata));
#ifdef CONFIG_SMP
if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0,
(struct acpi_table_header **)&madt)))
madt = NULL;
#endif
acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);
if (!acpi_processor_dir)
return -ENOMEM;
acpi_processor_dir->owner = THIS_MODULE;
/*
* Check whether the system is DMI table. If yes, OSPM
* should not use mwait for CPU-states.
*/
dmi_check_system(processor_idle_dmi_table);
result = cpuidle_register_driver(&acpi_idle_driver);
if (result < 0)
goto out_proc;
result = acpi_bus_register_driver(&acpi_processor_driver);
if (result < 0)
goto out_cpuidle;
acpi_processor_install_hotplug_notify();
acpi_thermal_cpufreq_init();
acpi_processor_ppc_init();
acpi_processor_throttling_init();
return 0;
out_cpuidle:
cpuidle_unregister_driver(&acpi_idle_driver);
out_proc:
remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
return result;
}
int omap3_idle_init(void)
{
int i, count = 0;
struct omap3_processor_cx *cx;
struct cpuidle_state *state;
struct cpuidle_device *dev;
omap_init_power_states();
cpuidle_register_driver(&omap3_idle_driver);
dev = &per_cpu(omap3_idle_dev, smp_processor_id());
for (i = 0; i < OMAP3_MAX_STATES; i++) {
cx = &omap3_power_states[i];
state = &dev->states[count];
if (!cx->valid)
continue;
cpuidle_set_statedata(state, cx);
state->exit_latency = cx->sleep_latency + cx->wakeup_latency;
state->target_residency = cx->threshold;
state->flags = cx->flags;
state->enter = (state->flags & CPUIDLE_FLAG_CHECK_BM) ?
omap3_enter_idle_bm : omap3_enter_idle;
if (cx->type == OMAP3_STATE_C2)
dev->safe_state = state;
sprintf(state->name, "C%d", count+1);
count++;
}
if (!count)
return -EINVAL;
dev->state_count = count;
if (cpuidle_register_device(dev)) {
printk(KERN_ERR "%s: CPUidle register device failed\n",
__FUNCTION__);
return -EIO;
}
#ifdef CONFIG_PROC_FS
create_pmproc_entry();
#endif /* #ifdef CONFIG_PROC_FS */
/* Initialize UART inactivity time */
awake_time_end = jiffies + msecs_to_jiffies(UART_TIME_OUT);
return 0;
}
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;
}
static int __init acpi_processor_init(void)
{
int result = 0;
if (acpi_disabled)
return 0;
memset(&errata, 0, sizeof(errata));
#ifdef CONFIG_SMP
if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0,
(struct acpi_table_header **)&madt)))
madt = NULL;
#endif
#ifdef CONFIG_ACPI_PROCFS
acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);
if (!acpi_processor_dir)
return -ENOMEM;
#endif
result = cpuidle_register_driver(&acpi_idle_driver);
if (result < 0)
goto out_proc;
result = acpi_bus_register_driver(&acpi_processor_driver);
if (result < 0)
goto out_cpuidle;
acpi_processor_install_hotplug_notify();
acpi_thermal_cpufreq_init();
acpi_processor_ppc_init();
acpi_processor_throttling_init();
return 0;
out_cpuidle:
cpuidle_unregister_driver(&acpi_idle_driver);
out_proc:
#ifdef CONFIG_ACPI_PROCFS
remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
#endif
return result;
}
void sh_mobile_setup_cpuidle(void)
{
struct cpuidle_device *dev = &cpuidle_dev;
struct cpuidle_state *state;
int i;
cpuidle_register_driver(&cpuidle_driver);
for (i = 0; i < CPUIDLE_STATE_MAX; i++) {
dev->states[i].name[0] = '\0';
dev->states[i].desc[0] = '\0';
}
i = CPUIDLE_DRIVER_STATE_START;
state = &dev->states[i++];
<<<<<<< HEAD
/* Initialize CPU idle by registering the idle states */
static int kw_cpuidle_probe(struct platform_device *pdev)
{
struct cpuidle_device *device;
cpuidle_register_driver(&kirkwood_idle_driver);
device = &per_cpu(kirkwood_cpuidle_device, smp_processor_id());
device->state_count = KIRKWOOD_MAX_STATES;
/* Wait for interrupt state */
device->states[0].enter = kirkwood_enter_idle;
device->states[0].exit_latency = 1;
device->states[0].target_residency = 100;
device->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
strcpy(device->states[0].name, "WFI");
strcpy(device->states[0].desc, "Wait for interrupt");
/* CPU Deep Idle state */
device->states[1].enter = kirkwood_enter_idle;
device->states[1].exit_latency = 10;
device->states[1].target_residency = 5000;
device->states[1].flags = CPUIDLE_FLAG_TIME_VALID;
strcpy(device->states[1].name, "DEEP IDLE");
strcpy(device->states[1].desc, "CPU Deep Idle");
#if 0
if (cpuidle_register_device(device)) {
printk(KERN_ERR "kirkwood_init_cpuidle: Failed registering\n");
return -EIO;
}
#endif
kirkwood_cpu_idle_device = device;
#ifdef CONFIG_MV_PMU_PROC
/* Create proc entry. */
cpu_idle_proc = create_proc_entry("cpu_idle", 0666, mv_pm_proc_entry);
cpu_idle_proc->read_proc = mv_cpu_idle_read;
cpu_idle_proc->write_proc = mv_cpu_idle_write;
cpu_idle_proc->nlink = 1;
#endif /* CONFIG_MV_PMU_PROC */
return 0;
}
static int shmobile_cpuidle_init(void)
{
struct cpuidle_device *dev = &shmobile_cpuidle_dev;
struct cpuidle_driver *drv = &shmobile_cpuidle_driver;
int i;
for (i = 0; i < CPUIDLE_STATE_MAX; i++)
drv->states[i].enter = shmobile_cpuidle_enter;
if (shmobile_cpuidle_setup)
shmobile_cpuidle_setup(drv);
cpuidle_register_driver(drv);
dev->state_count = drv->state_count;
cpuidle_register_device(dev);
return 0;
}
static int __init sunxi_init_cpuidle(void)
{
int cpu;
struct cpuidle_device *device;
sun8i_cpuidle_state_init();
sunxi_idle_driver.safe_state_index = 0;
cpuidle_register_driver(&sunxi_idle_driver);
for_each_possible_cpu(cpu) {
device = &per_cpu(sunxi_cpuidle_device, cpu);
device->cpu = cpu;
if (cpuidle_register_device(device)) {
printk(KERN_ERR "CPUidle register device failed\n,");
return -EIO;
}
}
return 0;
}
static int __init wmt_cpuidle_driver_init(void)
{
struct cpuidle_device *device = NULL;
if (wmt_cpuidle_check_env()) {
printk(KERN_WARNING "wmt_cpuidle check env failed!\n");
return -EINVAL;
}
cpuidle_register_driver(&wmt_cpuidle_driver);
device = &per_cpu(wmt_cpuidle_device, smp_processor_id());
device->state_count = WMT_CPU_IDLE_MAX_STATES;
/* Wait for interrupt state */
device->states[0].enter = wmt_enter_idle;
device->states[0].exit_latency = 1;
device->states[0].target_residency = 10000;
device->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
strcpy(device->states[0].name, "WFI");
strcpy(device->states[0].desc, "Wait for interrupt");
/* Wait for interrupt and DDR self refresh state */
device->states[1].enter = wmt_enter_idle;
device->states[1].exit_latency = 10;
device->states[1].target_residency = 10000;
device->states[1].flags = CPUIDLE_FLAG_TIME_VALID;
strcpy(device->states[1].name, "ZAC_OFF");
strcpy(device->states[1].desc, "WFI and disable ZAC clock");
if (cpuidle_register_device(device)) {
printk(KERN_ERR "wmt_cpuidle_driver_init: Failed registering\n");
return -EIO;
}
printk(KERN_INFO "WMT cpuidle driver register\n");
return 0;
}
/**
* cpuidle_init - Init routine for v9r1 idle
*
* Registers the v9r1 specific cpuidle driver to the cpuidle
* framework with the valid set of states.
*/
int __init cpuidle_init(void)
{
struct cpuidle_device *dev;
int i, max_cpuidle_state, cpu_id;
cpuidle_register_driver(&idle_driver);
wdt_base = ioremap(REG_BASE_WD0, REG_WD0_IOSIZE);
gp_cpuidle_state = (unsigned int *)MEM_AXI_CPU_IDLE_ADDR;
*gp_cpuidle_state = (CPU_IDLE_C4 << CPUIDLE_STATE_START_BIT) | (CPU_IDLE_STAT_VALID << CPUIDLE_STATE_MAGIC_START_BIT);/*init*/
for_each_cpu(cpu_id, cpu_online_mask) {
dev = &per_cpu(idle_dev, cpu_id);
dev->cpu = cpu_id;
printk(KERN_ERR "cpu=%d\n", dev->cpu);
if (cpu_id == 0)
dev->state_count = ARRAY_SIZE(cpuidle_set);
else
dev->state_count = 1; /* Support IDLE only */
max_cpuidle_state = dev->state_count;
for (i = 0; i < max_cpuidle_state; i++) {
memcpy(&dev->states[i], &cpuidle_set[i],
sizeof(struct cpuidle_state));
}
dev->safe_state = &dev->states[0];
if (cpuidle_register_device(dev)) {
cpuidle_unregister_driver(&idle_driver);
printk(KERN_ERR "CPUidle register device failed\n,");
return -EIO;
}
}
/**
* cpuidle_register: registers the driver and the cpu devices with the
* coupled_cpus passed as parameter. This function is used for all common
* initialization pattern there are in the arch specific drivers. The
* devices is globally defined in this file.
*
* @drv : a valid pointer to a struct cpuidle_driver
* @coupled_cpus: a cpumask for the coupled states
*
* Returns 0 on success, < 0 otherwise
*/
int cpuidle_register(struct cpuidle_driver *drv,
const struct cpumask *const coupled_cpus)
{
int ret, cpu;
struct cpuidle_device *device;
ret = cpuidle_register_driver(drv);
if (ret) {
pr_err("failed to register cpuidle driver\n");
return ret;
}
for_each_possible_cpu(cpu) {
device = &per_cpu(cpuidle_dev, cpu);
device->cpu = cpu;
#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED
/*
* On multiplatform for ARM, the coupled idle states could
* enabled in the kernel even if the cpuidle driver does not
* use it. Note, coupled_cpus is a struct copy.
*/
if (coupled_cpus)
device->coupled_cpus = *coupled_cpus;
#endif
ret = cpuidle_register_device(device);
if (!ret)
continue;
pr_err("Failed to register cpuidle device for cpu%d\n", cpu);
cpuidle_unregister(drv);
break;
}
return ret;
}
static int __init acpi_processor_init(void)
{
int result = 0;
if (acpi_disabled)
return 0;
memset(&errata, 0, sizeof(errata));
if (!cpuidle_register_driver(&acpi_idle_driver)) {
printk(KERN_DEBUG "ACPI: %s registered with cpuidle\n",
acpi_idle_driver.name);
} else {
printk(KERN_DEBUG "ACPI: acpi_idle yielding to %s\n",
cpuidle_get_driver()->name);
}
result = acpi_bus_register_driver(&acpi_processor_driver);
if (result < 0)
goto out_cpuidle;
acpi_processor_install_hotplug_notify();
acpi_thermal_cpufreq_init();
acpi_processor_ppc_init();
acpi_processor_throttling_init();
return 0;
out_cpuidle:
cpuidle_unregister_driver(&acpi_idle_driver);
return result;
}
