static ssize_t cpufreq_min_limit_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t n)
{
int val;
unsigned int cpufreq_level;
int lock_ret;
ssize_t ret = -EINVAL;
mutex_lock(&cpufreq_limit_mutex);
if (sscanf(buf, "%d", &val) != 1) {
printk(KERN_ERR "%s: Invalid cpufreq format\n", __func__);
goto out;
}
if (val == -1) { /* Unlock request */
if (cpufreq_min_limit_val != -1) {
exynos_cpufreq_lock_free(DVFS_LOCK_ID_USER);
cpufreq_min_limit_val = -1;
} else /* Already unlocked */
printk(KERN_ERR "%s: Unlock request is ignored\n",
__func__);
} else { /* Lock request */
if (get_cpufreq_level((unsigned int)val, &cpufreq_level)
== VALID_LEVEL) {
if (cpufreq_min_limit_val != -1)
/* Unlock the previous lock */
exynos_cpufreq_lock_free(DVFS_LOCK_ID_USER);
lock_ret = exynos_cpufreq_lock(
DVFS_LOCK_ID_USER, cpufreq_level);
/* ret of exynos_cpufreq_lock is meaningless.
0 is fail? success? */
cpufreq_min_limit_val = val;
if ((cpufreq_max_limit_val != -1) &&
(cpufreq_min_limit_val > cpufreq_max_limit_val))
printk(KERN_ERR "%s: Min lock may not work well"
" because of Max lock\n", __func__);
} else /* Invalid lock request --> No action */
printk(KERN_ERR "%s: Lock request is invalid\n",
__func__);
}
ret = n;
out:
mutex_unlock(&cpufreq_limit_mutex);
return ret;
}
static int exynos_frequency_unlock(struct device *dev)
{
int ret = 0;
struct device *busdev = dev_get("exynos-busfreq");
if (atomic_read(&umts_link_pm_data.freqlock) == 1) {
/* cpu frequency unlock */
exynos_cpufreq_lock_free(DVFS_LOCK_ID_USB_IF);
/* bus frequency unlock */
ret = dev_unlock(busdev, dev);
if (ret < 0) {
mif_err("ERR: dev_unlock error: %d\n", ret);
goto exit;
}
/* unlock minimum number of cpu cores */
cpufreq_pegasusq_min_cpu_unlock();
atomic_set(&umts_link_pm_data.freqlock, 0);
mif_debug("success\n");
}
exit:
return ret;
}
int cpufreq_lock_by_mali(unsigned int freq)
{
#ifdef CONFIG_EXYNOS4_CPUFREQ
/* #if defined(CONFIG_CPU_FREQ) && defined(CONFIG_ARCH_EXYNOS4) */
unsigned int level;
if (atomic_read(&mali_cpufreq_lock) == 1)
exynos_cpufreq_lock_free(DVFS_LOCK_ID_G3D);
if (exynos_cpufreq_get_level(freq * 1000, &level)) {
printk(KERN_ERR
"Mali: failed to get cpufreq level for %dMHz", freq);
if (atomic_read(&mali_cpufreq_lock) == 1)
atomic_set(&mali_cpufreq_lock, 0);
return -EINVAL;
}
if (exynos_cpufreq_lock(DVFS_LOCK_ID_G3D, level)) {
printk(KERN_ERR "Mali: failed to cpufreq lock for L%d", level);
if (atomic_read(&mali_cpufreq_lock) == 1)
atomic_set(&mali_cpufreq_lock, 0);
return -EINVAL;
}
printk(KERN_DEBUG "Mali: cpufreq locked on <%d>%dMHz\n", level, freq);
if (atomic_read(&mali_cpufreq_lock) == 0)
atomic_set(&mali_cpufreq_lock, 1);
#endif
return 0;
}
/* block wacom coordinate print */
#ifdef CONFIG_SEC_TOUCHSCREEN_DVFS_LOCK
#if defined(CONFIG_MACH_P4NOTE)
void free_dvfs_lock(struct work_struct *work)
{
struct wacom_i2c *wac_i2c =
container_of(work, struct wacom_i2c, dvfs_work.work);
if (wac_i2c->dvfs_lock_status)
dev_lock(wac_i2c->bus_dev,
wac_i2c->dev, SEC_BUS_LOCK_FREQ);
else {
dev_unlock(wac_i2c->bus_dev, wac_i2c->dev);
exynos_cpufreq_lock_free(DVFS_LOCK_ID_PEN);
}
}
static void set_dvfs_lock(struct wacom_i2c *wac_i2c, bool on)
{
if (on) {
if (!wac_i2c->dvfs_lock_status) {
cancel_delayed_work(&wac_i2c->dvfs_work);
dev_lock(wac_i2c->bus_dev,
wac_i2c->dev, SEC_BUS_LOCK_FREQ2);
exynos_cpufreq_lock(DVFS_LOCK_ID_PEN,
wac_i2c->cpufreq_level);
wac_i2c->dvfs_lock_status = true;
schedule_delayed_work(&wac_i2c->dvfs_work,
msecs_to_jiffies(SEC_DVFS_LOCK_TIMEOUT_MS));
}
} else {
if (wac_i2c->dvfs_lock_status) {
schedule_delayed_work(&wac_i2c->dvfs_work,
msecs_to_jiffies(SEC_DVFS_LOCK_TIMEOUT_MS));
wac_i2c->dvfs_lock_status = false;
}
}
}
#else /* CONFIG_MACH_P4NOTE */
void free_dvfs_lock(struct work_struct *work)
{
struct wacom_i2c *wac_i2c =
container_of(work, struct wacom_i2c, dvfs_work.work);
exynos_cpufreq_lock_free(DVFS_LOCK_ID_PEN);
wac_i2c->dvfs_lock_status = false;
}
/**
* exynos_tc_volt - locks or frees vdd_arm, vdd_mif/int and vdd_g3d for
* temperature compensation.
*
* This function limits or free voltage of cpufreq, busfreq, and mali driver
* according to 2nd arguments.
*/
static int exynos_tc_volt(struct s5p_tmu_info *info, int enable)
{
struct s5p_platform_tmu *data;
static int usage;
int ret = 0;
if (!info || !(info->dev))
return -EPERM;
data = info->dev->platform_data;
if (enable == usage) {
pr_debug("TMU: already is %s.\n",
enable ? "locked" : "unlocked");
return 0;
}
if (enable) {
ret = exynos_cpufreq_lock(DVFS_LOCK_ID_TMU, info->cpulevel_tc);
if (ret)
goto err_lock;
#ifdef CONFIG_BUSFREQ_OPP
ret = dev_lock(info->bus_dev, info->dev, info->busfreq_tc);
if (ret)
goto err_lock;
#endif
#if defined(CONFIG_VIDEO_MALI400MP)
ret = mali_voltage_lock_push(data->temp_compensate.g3d_volt);
if (ret < 0) {
pr_err("TMU: g3d_push error: %u uV\n",
data->temp_compensate.g3d_volt);
goto err_lock;
}
#endif
} else {
exynos_cpufreq_lock_free(DVFS_LOCK_ID_TMU);
#ifdef CONFIG_BUSFREQ_OPP
ret = dev_unlock(info->bus_dev, info->dev);
if (ret)
goto err_unlock;
#endif
#if defined(CONFIG_VIDEO_MALI400MP)
ret = mali_voltage_lock_pop();
if (ret < 0) {
pr_err("TMU: g3d_pop error\n");
goto err_unlock;
}
#endif
}
usage = enable;
pr_info("TMU: %s is ok!\n", enable ? "lock" : "unlock");
return ret;
err_lock:
err_unlock:
pr_err("TMU: %s is fail.\n", enable ? "lock" : "unlock");
return ret;
}
void cpufreq_unlock_by_mali(void)
{
#ifdef CONFIG_EXYNOS4_CPUFREQ
/* #if defined(CONFIG_CPU_FREQ) && defined(CONFIG_ARCH_EXYNOS4) */
if (atomic_read(&mali_cpufreq_lock) == 1) {
exynos_cpufreq_lock_free(DVFS_LOCK_ID_G3D);
atomic_set(&mali_cpufreq_lock, 0);
printk(KERN_DEBUG "Mali: cpufreq locked off\n");
}
#endif
}
void free_dvfs_lock(struct work_struct *work)
{
struct wacom_i2c *wac_i2c =
container_of(work, struct wacom_i2c, dvfs_work.work);
if (wac_i2c->dvfs_lock_status)
dev_lock(wac_i2c->bus_dev,
wac_i2c->dev, SEC_BUS_LOCK_FREQ);
else {
dev_unlock(wac_i2c->bus_dev, wac_i2c->dev);
exynos_cpufreq_lock_free(DVFS_LOCK_ID_PEN);
}
}
void free_dvfs_lock(struct work_struct *work)
{
struct wacom_i2c *wac_i2c =
container_of(work, struct wacom_i2c, dvfs_work.work);
#ifdef SEC_BUS_LOCK
#if defined(CONFIG_MACH_P4NOTE)
dev_unlock(wac_i2c->bus_dev, wac_i2c->dev);
#else
exynos4_busfreq_lock_free(DVFS_LOCK_ID_PEN);
#endif
#endif /* SEC_BUS_LOCK */
exynos_cpufreq_lock_free(DVFS_LOCK_ID_PEN);
wac_i2c->dvfs_lock_status = false;
}
static void set_dvfs_off(struct work_struct *work)
{
int ret;
if (dvfs_lock_status && !press_status) {
ret = dev_unlock(bus_dev, sec_touchscreen);
if (ret < 0) {
pr_err("%s: bus unlock failed(%d)\n",
__func__, __LINE__);
return;
}
exynos_cpufreq_lock_free(DVFS_LOCK_ID_TSP);
dvfs_lock_status = false;
#if DEBUG_PRINT
pr_info("[TSP] TSP DVFS mode exit ");
#endif
}
}
/**
* exynos_tc_volt - locks or frees vdd_arm, vdd_mif/int and vdd_g3d for
* temperature compensation.
*
* This function limits or free voltage of cpufreq, busfreq, and mali driver
* according to 2nd arguments.
*/
static int exynos_tc_volt(struct s5p_tmu_info *info, int enable)
{
struct s5p_platform_tmu *data;
static int usage;
int ret = 0;
if (!info || !(info->dev))
return -EPERM;
data = info->dev->platform_data;
if (enable == usage) {
pr_debug("TMU: already is %s.\n",
enable ? "locked" : "unlocked");
return 0;
}
if (enable) {
ret = exynos_cpufreq_lock(DVFS_LOCK_ID_TMU, info->cpulevel_tc);
if (ret)
goto err_lock;
#ifdef CONFIG_BUSFREQ_OPP
ret = dev_lock(info->bus_dev, info->dev, info->busfreq_tc);
if (ret)
goto err_lock;
#endif
} else {
exynos_cpufreq_lock_free(DVFS_LOCK_ID_TMU);
#ifdef CONFIG_BUSFREQ_OPP
ret = dev_unlock(info->bus_dev, info->dev);
if (ret)
goto err_unlock;
#endif
}
usage = enable;
pr_info("TMU: %s is ok!\n", enable ? "lock" : "unlock");
return ret;
err_lock:
err_unlock:
pr_err("TMU: %s is fail.\n", enable ? "lock" : "unlock");
return ret;
}
static int fimc_is_runtime_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct v4l2_subdev *sd = platform_get_drvdata(pdev);
struct fimc_is_dev *is_dev = to_fimc_is_dev(sd);
printk(KERN_INFO "FIMC-IS runtime suspend\n");
if (is_dev->pdata->clk_off) {
is_dev->pdata->clk_off(pdev);
} else {
printk(KERN_ERR "#### failed to Clock OFF ####\n");
return -EINVAL;
}
#if defined(CONFIG_BUSFREQ_OPP) || defined(CONFIG_BUSFREQ_LOCK_WRAPPER)
/* Unlock bus frequency */
pm_qos_remove_request(&bus_qos_pm_qos_req);
dev_unlock(is_dev->bus_dev, dev);
#endif
#ifdef CONFIG_EXYNOS4_CPUFREQ
exynos_cpufreq_lock_free(DVFS_LOCK_ID_CAM);
#endif
#if defined(CONFIG_VIDEOBUF2_ION)
if (is_dev->alloc_ctx)
fimc_is_mem_suspend(is_dev->alloc_ctx);
#endif
mutex_lock(&is_dev->lock);
clear_bit(IS_PWR_ST_POWERON, &is_dev->power);
set_bit(IS_PWR_ST_POWEROFF, &is_dev->power);
mutex_unlock(&is_dev->lock);
#ifdef CONFIG_REGULATOR
regulator_disable(is_dev->r_vdd18_cam);
regulator_disable(is_dev->r_vddio18_cam);
regulator_disable(is_dev->r_vdd28_af_cam);
regulator_disable(is_dev->r_vadd28_cam);
#endif
printk(KERN_INFO "FIMC-IS runtime suspend end\n");
return 0;
}
static int exynos_frequency_unlock(struct device *dev)
{
int ret = 0, lock_id;
atomic_t *freqlock;
struct device *busdev = dev_get("exynos-busfreq");
if (!strcmp(dev->bus->name, "usb")) {
lock_id = DVFS_LOCK_ID_USB_IF;
freqlock = &umts_link_pm_data.freqlock;
} else if (!strcmp(dev->bus->name, "platform")) { // for dpram lock
lock_id = DVFS_LOCK_ID_DPRAM_IF;
freqlock = &umts_link_pm_data.freq_dpramlock;
} else {
mif_err("ERR: Unkown unlock ID (%s)\n", dev->bus->name);
goto exit;
}
if (atomic_read(freqlock) == 1) {
/* cpu frequency unlock */
exynos_cpufreq_lock_free(lock_id);
/* bus frequency unlock */
ret = dev_unlock(busdev, dev);
if (ret < 0) {
mif_err("ERR: dev_unlock error: %d\n", ret);
goto exit;
}
/* unlock minimum number of cpu cores */
cpufreq_pegasusq_min_cpu_unlock();
atomic_set(freqlock, 0);
mif_info("success\n");
}
exit:
return ret;
}
static void release_all_fingers(struct melfas_ts_data *ts)
{
int i, ret;
printk(KERN_DEBUG "[TSP] %s\n", __func__);
for (i = 0; i < MELFAS_MAX_TOUCH; i++) {
g_Mtouch_info[i].status = TSP_STATE_INACTIVE;
g_Mtouch_info[i].strength = 0;
g_Mtouch_info[i].posX = 0;
g_Mtouch_info[i].posY = 0;
g_Mtouch_info[i].angle = 0;
g_Mtouch_info[i].major = 0;
g_Mtouch_info[i].minor = 0;
g_Mtouch_info[i].palm = 0;
input_mt_slot(ts->input_dev, i);
input_mt_report_slot_state(ts->input_dev,
MT_TOOL_FINGER, 0);
}
input_sync(ts->input_dev);
#if TOUCH_BOOSTER
if (dvfs_lock_status) {
exynos_cpufreq_lock_free(DVFS_LOCK_ID_TSP);
ret = dev_unlock(bus_dev, sec_touchscreen);
if (ret < 0) {
pr_err("%s: bus unlock failed(%d)\n",
__func__, __LINE__);
return;
}
dvfs_lock_status = false;
press_status = false;
#if DEBUG_PRINT
pr_info("[TSP] %s : DVFS mode exit\n", __func__);
#endif
}
#endif
}
static inline void rotation_booster_off(void)
{
exynos_gpufreq_unlock();
exynos4_busfreq_lock_free(DVFS_LOCK_ID_ROTATION_BOOSTER);
exynos_cpufreq_lock_free(DVFS_LOCK_ID_ROTATION_BOOSTER);
}
static void ir_remocon_send(struct ir_remocon_data *data)
{
unsigned int period, off_period = 0;
unsigned int duty;
unsigned int on, off = 0;
unsigned int i, j;
int ret;
static int cpu_lv = -1;
if (data->pwr_en == -1) {
regulator = regulator_get(NULL, "vled_3.3v");
if (IS_ERR(regulator))
goto out;
regulator_enable(regulator);
regulator_status = 1;
}
if (data->pwr_en != -1)
gpio_direction_output(data->pwr_en, 1);
__udelay(1000);
if (cpu_lv == -1) {
if (data->pwr_en == -1)
exynos_cpufreq_get_level(500000, &cpu_lv);
else
exynos_cpufreq_get_level(800000, &cpu_lv);
}
ret = exynos_cpufreq_lock(DVFS_LOCK_ID_IR_LED, cpu_lv);
if (ret < 0)
pr_err("%s: fail to lock cpufreq\n", __func__);
ret = exynos_cpufreq_upper_limit(DVFS_LOCK_ID_IR_LED, cpu_lv);
if (ret < 0)
pr_err("%s: fail to lock cpufreq(limit)\n", __func__);
if (data->pwr_en == -1)
period = (MICRO_SEC/data->signal[0])-2;
else
period = (MICRO_SEC/data->signal[0])-1;
duty = period/4;
on = duty;
off = period - duty;
local_irq_disable();
for (i = 1; i < MAX_SIZE; i += 2) {
if (data->signal[i] == 0)
break;
for (j = 0; j < data->signal[i]; j++) {
gpio_direction_output(data->gpio, 1);
__udelay(on);
gpio_direction_output(data->gpio, 0);
__udelay(off);
}
if (data->pwr_en == -1)
period = (MICRO_SEC/data->signal[0]);
else
period = (MICRO_SEC/data->signal[0])+1;
off_period = data->signal[i+1]*period;
if (off_period <= 9999) {
if (off_period > 1000) {
__udelay(off_period % 1000);
mdelay(off_period/1000);
} else
__udelay(off_period);
} else {
local_irq_enable();
__udelay(off_period % 1000);
mdelay(off_period/1000);
local_irq_disable();
}
}
gpio_direction_output(data->gpio, 1);
__udelay(on);
gpio_direction_output(data->gpio, 0);
__udelay(off);
local_irq_enable();
pr_info("%s end!\n", __func__);
exynos_cpufreq_lock_free(DVFS_LOCK_ID_IR_LED);
exynos_cpufreq_upper_limit_free(DVFS_LOCK_ID_IR_LED);
if (data->pwr_en != -1)
gpio_direction_output(data->pwr_en, 0);
if ((data->pwr_en == -1) && (regulator_status == 1)) {
regulator_force_disable(regulator);
regulator_put(regulator);
regulator_status = -1;
}
out: ;
}
static void exynos4_handler_tmu_state(struct work_struct *work)
{
struct delayed_work *delayed_work = to_delayed_work(work);
struct s5p_tmu_info *info =
container_of(delayed_work, struct s5p_tmu_info, polling);
struct s5p_platform_tmu *data = info->dev->platform_data;
unsigned int cur_temp;
static int auto_refresh_changed;
static int check_handle;
int trend = 0;
mutex_lock(&tmu_lock);
cur_temp = get_curr_temp(info);
trend = cur_temp - info->last_temperature;
pr_debug("curr_temp = %d, temp_diff = %d\n", cur_temp, trend);
switch (info->tmu_state) {
case TMU_STATUS_TC:
#if defined(CONFIG_TC_VOLTAGE)
if (cur_temp >= data->ts.stop_tc) {
if (check_handle & TC_VOLTAGE_FLAG) {
exynos_cpufreq_lock_free(DVFS_LOCK_ID_TMU);
#ifdef CONFIG_BUSFREQ_OPP
if (dev_unlock(info->bus_dev, info->dev))
pr_err("TMU: dev_unlock error!\n");
#endif
if (mali_voltage_lock_pop() < 0)
pr_err("TMU: g3d_pop error\n");
check_handle &= ~(TC_VOLTAGE_FLAG);
pr_info("change state: tc -> normal.\n");
}
info->tmu_state = TMU_STATUS_NORMAL;
} else if (cur_temp <= data->ts.start_tc) {
if (!(check_handle & TC_VOLTAGE_FLAG)) {
if (exynos_cpufreq_lock(DVFS_LOCK_ID_TMU,
info->cpulevel_tc) < 0)
pr_err("TMU: cpu_lock error!\n");
#ifdef CONFIG_BUSFREQ_OPP
if (dev_lock(info->bus_dev, info->dev,
info->busfreq_tc) < 0)
pr_err("TMU: bus_lock error\n");
#endif
if (mali_voltage_lock_push(data->temp_compensate.g3d_volt) < 0)
pr_err("TMU: g3d_push error [%u] uV\n",
data->temp_compensate.g3d_volt);
check_handle |= TC_VOLTAGE_FLAG;
}
}
#endif
break;
case TMU_STATUS_NORMAL:
/* 1. change state: 1st-throttling */
if (cur_temp >= data->ts.start_1st_throttle) {
info->tmu_state = TMU_STATUS_THROTTLED;
pr_info("change state: normal->throttle.\n");
/* 2. polling end and uevent */
#if defined(CONFIG_TC_VOLTAGE)
} else if ((cur_temp <= data->ts.stop_1st_throttle)
&& (cur_temp >= data->ts.stop_tc)
&& (cur_temp <= data->ts.stop_mem_throttle)) {
#else
} else if ((cur_temp <= data->ts.stop_1st_throttle)
&& (cur_temp <= data->ts.stop_mem_throttle)) {
#endif
if (check_handle & THROTTLE_FLAG) {
exynos_cpufreq_upper_limit_free(DVFS_LOCK_ID_TMU);
check_handle &= ~(THROTTLE_FLAG);
}
pr_debug("check_handle = %d\n", check_handle);
notify_change_of_tmu_state(info);
pr_info("normal: free cpufreq_limit & interrupt enable.\n");
/* clear to prevent from interfupt by peindig bit */
__raw_writel(INTCLEARALL,
info->tmu_base + EXYNOS4_TMU_INTCLEAR);
exynos_interrupt_enable(info, 1);
enable_irq(info->irq);
mutex_unlock(&tmu_lock);
return;
}
break;
case TMU_STATUS_THROTTLED:
/* 1. change state: 2nd-throttling or warning */
if (cur_temp >= data->ts.start_2nd_throttle) {
info->tmu_state = TMU_STATUS_WARNING;
pr_info("change state: 1st throttle->2nd throttle.\n");
/* 2. cpufreq limitation and uevent */
} else if ((cur_temp >= data->ts.start_1st_throttle) &&
!(check_handle & THROTTLE_FLAG)) {
if (check_handle & WARNING_FLAG) {
exynos_cpufreq_upper_limit_free(DVFS_LOCK_ID_TMU);
check_handle &= ~(WARNING_FLAG);
}
exynos_cpufreq_upper_limit(DVFS_LOCK_ID_TMU,
info->cpufreq_level_1st_throttle);
check_handle |= THROTTLE_FLAG;
pr_debug("check_handle = %d\n", check_handle);
notify_change_of_tmu_state(info);
pr_info("throttling: set cpufreq upper limit.\n");
/* 3. change state: normal */
} else if ((cur_temp <= data->ts.stop_1st_throttle)
&& (trend < 0)) {
info->tmu_state = TMU_STATUS_NORMAL;
pr_info("change state: 1st throttle->normal.\n");
}
break;
case TMU_STATUS_WARNING:
/* 1. change state: tripping */
if (cur_temp >= data->ts.start_tripping) {
info->tmu_state = TMU_STATUS_TRIPPED;
pr_info("change state: 2nd throttle->trip\n");
/* 2. cpufreq limitation and uevent */
} else if ((cur_temp >= data->ts.start_2nd_throttle) &&
!(check_handle & WARNING_FLAG)) {
if (check_handle & THROTTLE_FLAG) {
exynos_cpufreq_upper_limit_free(DVFS_LOCK_ID_TMU);
check_handle &= ~(THROTTLE_FLAG);
}
exynos_cpufreq_upper_limit(DVFS_LOCK_ID_TMU,
info->cpufreq_level_2nd_throttle);
check_handle |= WARNING_FLAG;
pr_debug("check_handle = %d\n", check_handle);
notify_change_of_tmu_state(info);
pr_info("2nd throttle: cpufreq is limited.\n");
/* 3. change state: 1st-throttling */
} else if ((cur_temp <= data->ts.stop_2nd_throttle)
&& (trend < 0)) {
info->tmu_state = TMU_STATUS_THROTTLED;
pr_info("change state: 2nd throttle->1st throttle, "
"and release cpufreq upper limit.\n");
}
break;
case TMU_STATUS_TRIPPED:
/* 1. call uevent to shut-down */
if ((cur_temp >= data->ts.start_tripping) &&
(trend > 0) && !(check_handle & TRIPPING_FLAG)) {
notify_change_of_tmu_state(info);
pr_info("tripping: on waiting shutdown.\n");
check_handle |= TRIPPING_FLAG;
pr_debug("check_handle = %d\n", check_handle);
/* 2. change state: 2nd-throttling or warning */
} else if ((cur_temp <= data->ts.stop_2nd_throttle)
&& (trend < 0)) {
info->tmu_state = TMU_STATUS_WARNING;
pr_info("change state: trip->2nd throttle, "
"Check! occured only test mode.\n");
}
/* 3. chip protection: kernel panic as SW workaround */
if ((cur_temp >= data->ts.start_emergency) && (trend > 0)) {
panic("Emergency!!!! tripping is not treated!\n");
/* clear to prevent from interfupt by peindig bit */
__raw_writel(INTCLEARALL,
info->tmu_state + EXYNOS4_TMU_INTCLEAR);
enable_irq(info->irq);
mutex_unlock(&tmu_lock);
return;
}
break;
case TMU_STATUS_INIT:
/* sned tmu initial status to platform */
disable_irq(info->irq);
if (cur_temp >= data->ts.start_tripping)
info->tmu_state = TMU_STATUS_TRIPPED;
#if defined(CONFIG_TC_VOLTAGE)
else if (cur_temp >= data->ts.start_tc)
info->tmu_state = TMU_STATUS_TC;
#endif
else if (cur_temp >= data->ts.start_2nd_throttle)
info->tmu_state = TMU_STATUS_WARNING;
else if (cur_temp >= data->ts.start_1st_throttle)
info->tmu_state = TMU_STATUS_THROTTLED;
else if (cur_temp <= data->ts.stop_1st_throttle)
info->tmu_state = TMU_STATUS_NORMAL;
notify_change_of_tmu_state(info);
pr_info("%s: inform to init state to platform.\n", __func__);
break;
default:
pr_warn("Bug: checked tmu_state.\n");
if (cur_temp >= data->ts.start_tripping)
info->tmu_state = TMU_STATUS_TRIPPED;
else
info->tmu_state = TMU_STATUS_WARNING;
break;
} /* end */
/* memory throttling */
if (cur_temp >= data->ts.start_mem_throttle) {
if (!(auto_refresh_changed) && (trend > 0)) {
pr_info("set auto_refresh 1.95us\n");
set_refresh_rate(info->auto_refresh_tq0);
auto_refresh_changed = 1;
}
} else if (cur_temp <= (data->ts.stop_mem_throttle)) {
if ((auto_refresh_changed) && (trend < 0)) {
pr_info("set auto_refresh 3.9us\n");
set_refresh_rate(info->auto_refresh_normal);
auto_refresh_changed = 0;
}
}
info->last_temperature = cur_temp;
/* reschedule the next work */
queue_delayed_work_on(0, tmu_monitor_wq, &info->polling,
info->sampling_rate);
mutex_unlock(&tmu_lock);
return;
}
