static void pm8xxx_tm_shutdown(struct platform_device *pdev)
{
struct pm8xxx_tm_chip *chip = platform_get_drvdata(pdev);
pm8xxx_tm_write_pwm(chip, TEMP_ALARM_PWM_EN_NEVER);
}
static int pm8xxx_tz_get_temp_pm8xxx_adc(struct thermal_zone_device *thermal,
unsigned long *temp)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
struct pm8xxx_adc_chan_result result = {
.physical = 0lu,
};
int rc;
if (!chip || !temp)
return -EINVAL;
*temp = chip->temp;
rc = pm8xxx_adc_read(chip->cdata.adc_channel, &result);
if (rc < 0) {
pr_err("%s: adc_channel_read_result() failed, rc = %d\n",
chip->cdata.tm_name, rc);
return rc;
}
*temp = result.physical;
chip->temp = result.physical;
return 0;
}
static int pm8xxx_tz_get_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode *mode)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
if (!chip || !mode)
return -EINVAL;
*mode = chip->mode;
return 0;
}
static int pm8xxx_tz_set_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode mode)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
if (!chip)
return -EINVAL;
if (mode != chip->mode) {
if (mode == THERMAL_DEVICE_ENABLED)
pm8xxx_tm_shutdown_override(chip,
SOFTWARE_OVERRIDE_ENABLED);
else
pm8xxx_tm_shutdown_override(chip,
SOFTWARE_OVERRIDE_DISABLED);
}
chip->mode = mode;
return 0;
}
static int pm8xxx_tz_get_trip_type(struct thermal_zone_device *thermal,
int trip, enum thermal_trip_type *type)
{
if (trip < 0 || !type)
return -EINVAL;
switch (trip) {
case TRIP_STAGE3:
*type = THERMAL_TRIP_CRITICAL;
break;
case TRIP_STAGE2:
*type = THERMAL_TRIP_HOT;
break;
case TRIP_STAGE1:
*type = THERMAL_TRIP_HOT;
break;
default:
return -EINVAL;
}
return 0;
}
static int pm8xxx_tz_get_trip_temp(struct thermal_zone_device *thermal,
int trip, unsigned long *temp)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
int thresh_temp;
if (!chip || trip < 0 || !temp)
return -EINVAL;
thresh_temp = chip->thresh * TEMP_THRESH_STEP +
TEMP_THRESH_MIN;
switch (trip) {
case TRIP_STAGE3:
thresh_temp += 2 * TEMP_STAGE_STEP;
break;
case TRIP_STAGE2:
thresh_temp += TEMP_STAGE_STEP;
break;
case TRIP_STAGE1:
break;
default:
return -EINVAL;
}
*temp = thresh_temp;
return 0;
}
static int pm8xxx_tz_get_crit_temp(struct thermal_zone_device *thermal,
unsigned long *temp)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
if (!chip || !temp)
return -EINVAL;
*temp = chip->thresh * TEMP_THRESH_STEP + TEMP_THRESH_MIN +
2 * TEMP_STAGE_STEP;
return 0;
}
static struct thermal_zone_device_ops pm8xxx_thermal_zone_ops_no_adc = {
.get_temp = pm8xxx_tz_get_temp_no_adc,
.get_mode = pm8xxx_tz_get_mode,
.set_mode = pm8xxx_tz_set_mode,
.get_trip_type = pm8xxx_tz_get_trip_type,
.get_trip_temp = pm8xxx_tz_get_trip_temp,
.get_crit_temp = pm8xxx_tz_get_crit_temp,
};
static struct thermal_zone_device_ops pm8xxx_thermal_zone_ops_pm8xxx_adc = {
.get_temp = pm8xxx_tz_get_temp_pm8xxx_adc,
.get_mode = pm8xxx_tz_get_mode,
.set_mode = pm8xxx_tz_set_mode,
.get_trip_type = pm8xxx_tz_get_trip_type,
.get_trip_temp = pm8xxx_tz_get_trip_temp,
.get_crit_temp = pm8xxx_tz_get_crit_temp,
};
static void pm8xxx_tm_work(struct work_struct *work)
{
struct pm8xxx_tm_chip *chip
= container_of(work, struct pm8xxx_tm_chip, irq_work);
int rc;
u8 reg;
rc = pm8xxx_tm_read_ctrl(chip, ®);
if (rc < 0)
goto bail;
if (chip->cdata.adc_type == PM8XXX_TM_ADC_NONE) {
rc = pm8xxx_tm_update_temp_no_adc(chip);
if (rc < 0)
goto bail;
pr_info("%s: Temp Alarm - stage=%u, threshold=%u, "
"temp=%lu mC\n", chip->cdata.tm_name, chip->stage,
chip->thresh, chip->temp);
} else {
chip->stage = (reg & TEMP_ALARM_CTRL_STATUS_MASK)
>> TEMP_ALARM_CTRL_STATUS_SHIFT;
chip->thresh = (reg & TEMP_ALARM_CTRL_THRESH_MASK)
>> TEMP_ALARM_CTRL_THRESH_SHIFT;
pr_info("%s: Temp Alarm - stage=%u, threshold=%u\n",
chip->cdata.tm_name, chip->stage, chip->thresh);
}
/* Clear status bits. */
if (reg & (TEMP_ALARM_CTRL_ST2_SD | TEMP_ALARM_CTRL_ST3_SD)) {
reg &= ~(TEMP_ALARM_CTRL_ST2_SD | TEMP_ALARM_CTRL_ST3_SD
| TEMP_ALARM_CTRL_STATUS_MASK);
pm8xxx_tm_write_ctrl(chip, reg);
}
thermal_zone_device_update(chip->tz_dev);
/* Notify user space */
if (chip->mode == THERMAL_DEVICE_ENABLED)
kobject_uevent(&chip->tz_dev->device.kobj, KOBJ_CHANGE);
bail:
enable_irq(chip->tempstat_irq);
enable_irq(chip->overtemp_irq);
}
static irqreturn_t pm8xxx_tm_isr(int irq, void *data)
{
struct pm8xxx_tm_chip *chip = data;
disable_irq_nosync(chip->tempstat_irq);
disable_irq_nosync(chip->overtemp_irq);
schedule_work(&chip->irq_work);
return IRQ_HANDLED;
}
static int pm8xxx_tm_init_reg(struct pm8xxx_tm_chip *chip)
{
int rc;
u8 reg;
rc = pm8xxx_tm_read_ctrl(chip, ®);
if (rc < 0)
return rc;
chip->stage = (reg & TEMP_ALARM_CTRL_STATUS_MASK)
>> TEMP_ALARM_CTRL_STATUS_SHIFT;
chip->temp = 0;
/* Use temperature threshold set 0: (105, 125, 145) */
chip->thresh = 0;
reg = (chip->thresh << TEMP_ALARM_CTRL_THRESH_SHIFT)
& TEMP_ALARM_CTRL_THRESH_MASK;
rc = pm8xxx_tm_write_ctrl(chip, reg);
if (rc < 0)
return rc;
/*
* Set the PMIC alarm module PWM to have a frequency of 8 Hz. This
* helps cut down on the number of unnecessary interrupts fired when
* changing between thermal stages. Also, Enable the over temperature
* PWM whenever the PMIC is enabled.
*/
reg = (1 << TEMP_ALARM_PWM_EN_SHIFT)
| (3 << TEMP_ALARM_PWM_PER_PRE_SHIFT)
| (3 << TEMP_ALARM_PWM_PER_DIV_SHIFT);
rc = pm8xxx_tm_write_pwm(chip, reg);
return rc;
}
static int pm8xxx_tz_get_temp_pm8058_adc(struct thermal_zone_device *thermal,
unsigned long *temp)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
DECLARE_COMPLETION_ONSTACK(wait);
struct adc_chan_result adc_result = {
.physical = 0lu,
};
int rc;
if (!chip || !temp)
return -EINVAL;
*temp = chip->temp;
rc = adc_channel_request_conv(chip->adc_handle, &wait);
if (rc < 0) {
pr_err("%s: adc_channel_request_conv() failed, rc = %d\n",
__func__, rc);
return rc;
}
wait_for_completion(&wait);
rc = adc_channel_read_result(chip->adc_handle, &adc_result);
if (rc < 0) {
pr_err("%s: adc_channel_read_result() failed, rc = %d\n",
__func__, rc);
return rc;
}
*temp = adc_result.physical;
chip->temp = adc_result.physical;
return 0;
}
static int pm8xxx_tz_get_temp_pm8xxx_adc(struct thermal_zone_device *thermal,
unsigned long *temp)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
struct pm8xxx_adc_chan_result result = {
.physical = 0lu,
};
int rc;
if (!chip || !temp)
return -EINVAL;
*temp = chip->temp;
rc = pm8xxx_adc_read(chip->cdata.adc_channel, &result);
if (rc < 0) {
pr_err("%s: adc_channel_read_result() failed, rc = %d\n",
chip->cdata.tm_name, rc);
return rc;
}
*temp = result.physical;
chip->temp = result.physical;
return 0;
}
static int pm8xxx_tz_get_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode *mode)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
if (!chip || !mode)
return -EINVAL;
*mode = chip->mode;
return 0;
}
static int pm8xxx_tz_set_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode mode)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
if (!chip)
return -EINVAL;
/* Mask software override requests if they are not allowed. */
if (!chip->cdata.allow_software_override)
mode = THERMAL_DEVICE_DISABLED;
if (mode != chip->mode) {
if (mode == THERMAL_DEVICE_ENABLED)
pm8xxx_tm_shutdown_override(chip,
SOFTWARE_OVERRIDE_ENABLED);
else
pm8xxx_tm_shutdown_override(chip,
SOFTWARE_OVERRIDE_DISABLED);
}
chip->mode = mode;
return 0;
}
static int pm8xxx_tz_get_trip_type(struct thermal_zone_device *thermal,
int trip, enum thermal_trip_type *type)
{
if (trip < 0 || !type)
return -EINVAL;
switch (trip) {
case TRIP_STAGE3:
*type = THERMAL_TRIP_CRITICAL;
break;
case TRIP_STAGE2:
*type = THERMAL_TRIP_HOT;
break;
case TRIP_STAGE1:
*type = THERMAL_TRIP_HOT;
break;
default:
return -EINVAL;
}
return 0;
}
static int pm8xxx_tz_get_trip_temp(struct thermal_zone_device *thermal,
int trip, unsigned long *temp)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
int thresh_temp;
if (!chip || trip < 0 || !temp)
return -EINVAL;
thresh_temp = chip->thresh * TEMP_THRESH_STEP +
TEMP_THRESH_MIN;
switch (trip) {
case TRIP_STAGE3:
thresh_temp += 2 * TEMP_STAGE_STEP;
break;
case TRIP_STAGE2:
thresh_temp += TEMP_STAGE_STEP;
break;
case TRIP_STAGE1:
break;
default:
return -EINVAL;
}
*temp = thresh_temp;
return 0;
}
static int pm8xxx_tz_get_crit_temp(struct thermal_zone_device *thermal,
unsigned long *temp)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
if (!chip || !temp)
return -EINVAL;
*temp = chip->thresh * TEMP_THRESH_STEP + TEMP_THRESH_MIN +
2 * TEMP_STAGE_STEP;
return 0;
}
static struct thermal_zone_device_ops pm8xxx_thermal_zone_ops_no_adc = {
.get_temp = pm8xxx_tz_get_temp_no_adc,
.get_mode = pm8xxx_tz_get_mode,
.set_mode = pm8xxx_tz_set_mode,
.get_trip_type = pm8xxx_tz_get_trip_type,
.get_trip_temp = pm8xxx_tz_get_trip_temp,
.get_crit_temp = pm8xxx_tz_get_crit_temp,
};
static struct thermal_zone_device_ops pm8xxx_thermal_zone_ops_pm8xxx_adc = {
.get_temp = pm8xxx_tz_get_temp_pm8xxx_adc,
.get_mode = pm8xxx_tz_get_mode,
.set_mode = pm8xxx_tz_set_mode,
.get_trip_type = pm8xxx_tz_get_trip_type,
.get_trip_temp = pm8xxx_tz_get_trip_temp,
.get_crit_temp = pm8xxx_tz_get_crit_temp,
};
static struct thermal_zone_device_ops pm8xxx_thermal_zone_ops_pm8058_adc = {
.get_temp = pm8xxx_tz_get_temp_pm8058_adc,
.get_mode = pm8xxx_tz_get_mode,
.set_mode = pm8xxx_tz_set_mode,
.get_trip_type = pm8xxx_tz_get_trip_type,
.get_trip_temp = pm8xxx_tz_get_trip_temp,
.get_crit_temp = pm8xxx_tz_get_crit_temp,
};
static void pm8xxx_tm_work(struct work_struct *work)
{
struct delayed_work *dwork
= container_of(work, struct delayed_work, work);
struct pm8xxx_tm_chip *chip
= container_of(dwork, struct pm8xxx_tm_chip, irq_work);
unsigned long temp = 0;
int rc, stage, thresh;
u8 reg;
rc = pm8xxx_tm_read_ctrl(chip, ®);
if (rc < 0)
goto bail;
/* Clear status bits. */
if (reg & (TEMP_ALARM_CTRL_ST2_SD | TEMP_ALARM_CTRL_ST3_SD)) {
reg &= ~(TEMP_ALARM_CTRL_ST2_SD | TEMP_ALARM_CTRL_ST3_SD
| TEMP_ALARM_CTRL_STATUS_MASK);
pm8xxx_tm_write_ctrl(chip, reg);
}
stage = (reg & TEMP_ALARM_CTRL_STATUS_MASK)
>> TEMP_ALARM_CTRL_STATUS_SHIFT;
thresh = (reg & TEMP_ALARM_CTRL_THRESH_MASK)
>> TEMP_ALARM_CTRL_THRESH_SHIFT;
thermal_zone_device_update(chip->tz_dev);
if (stage != chip->prev_stage) {
chip->prev_stage = stage;
switch (chip->cdata.adc_type) {
case PM8XXX_TM_ADC_NONE:
rc = pm8xxx_tz_get_temp_no_adc(chip->tz_dev, &temp);
break;
case PM8XXX_TM_ADC_PM8058_ADC:
rc = pm8xxx_tz_get_temp_pm8058_adc(chip->tz_dev, &temp);
break;
case PM8XXX_TM_ADC_PM8XXX_ADC:
rc = pm8xxx_tz_get_temp_pm8xxx_adc(chip->tz_dev, &temp);
break;
}
if (rc < 0)
goto bail;
pr_crit("%s: PMIC Temp Alarm - stage=%u, threshold=%u, temp=%lu mC\n",
chip->cdata.tm_name, stage, thresh, temp);
/* Notify user space */
sysfs_notify(&chip->tz_dev->device.kobj, NULL, "type");
}
bail:
return;
}
static irqreturn_t pm8xxx_tm_isr(int irq, void *data)
{
struct pm8xxx_tm_chip *chip = data;
schedule_delayed_work(&chip->irq_work,
msecs_to_jiffies(STATUS_REGISTER_DELAY_MS) + 1);
return IRQ_HANDLED;
}
static int pm8xxx_tm_init_reg(struct pm8xxx_tm_chip *chip)
{
int rc;
u8 reg;
rc = pm8xxx_tm_read_ctrl(chip, ®);
if (rc < 0)
return rc;
chip->stage = (reg & TEMP_ALARM_CTRL_STATUS_MASK)
>> TEMP_ALARM_CTRL_STATUS_SHIFT;
chip->temp = 0;
/* Use temperature threshold set 0: (105, 125, 145) */
chip->thresh = 0;
reg = (chip->thresh << TEMP_ALARM_CTRL_THRESH_SHIFT)
& TEMP_ALARM_CTRL_THRESH_MASK;
rc = pm8xxx_tm_write_ctrl(chip, reg);
if (rc < 0)
return rc;
/*
* Set the PMIC temperature alarm module to be always on. This ensures
* that die temperature monitoring is active even if CXO is disabled
* (i.e. when sleep_b is low). This is necessary since CXO can be
* disabled while the system is still heavily loaded. Also, using
* the alway-on instead of PWM-enabled configurations ensures that the
* die temperature can be measured by the PMIC ADC without reconfiguring
* the temperature alarm module first.
*/
rc = pm8xxx_tm_write_pwm(chip, TEMP_ALARM_PWM_EN_ALWAYS);
return rc;
}
static int pm8xxx_init_adc(struct pm8xxx_tm_chip *chip, bool enable)
{
int rc = 0;
if (chip->cdata.adc_type == PM8XXX_TM_ADC_PM8058_ADC) {
if (enable) {
rc = adc_channel_open(chip->cdata.adc_channel,
&(chip->adc_handle));
if (rc < 0)
pr_err("adc_channel_open() failed.\n");
} else {
adc_channel_close(chip->adc_handle);
}
}
return rc;
}
static int pm8xxx_tz_get_temp_pm8058_adc(struct thermal_zone_device *thermal,
unsigned long *temp)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
DECLARE_COMPLETION_ONSTACK(wait);
struct adc_chan_result adc_result = {
.physical = 0lu,
};
int rc;
#ifdef CONFIG_LGE_PM /* */
int wait_ret;
#endif
if (!chip || !temp)
return -EINVAL;
*temp = chip->temp;
rc = adc_channel_request_conv(chip->adc_handle, &wait);
if (rc < 0) {
pr_err("%s: adc_channel_request_conv() failed, rc = %d\n",
__func__, rc);
return rc;
}
#ifdef CONFIG_LGE_PM /* */
wait_ret = wait_for_completion_timeout(&wait, msecs_to_jiffies(MSM_PMIC_ADC_READ_TIMEOUT));
if(wait_ret <= 0)
{
printk(KERN_ERR "===%s: failed to adc wait for completion!===\n",__func__);
goto sanity_out;
}
#else
wait_for_completion(&wait);
#endif
rc = adc_channel_read_result(chip->adc_handle, &adc_result);
if (rc < 0) {
pr_err("%s: adc_channel_read_result() failed, rc = %d\n",
__func__, rc);
return rc;
}
*temp = adc_result.physical;
chip->temp = adc_result.physical;
#if defined(CONFIG_MACH_LGE_325_BOARD_SKT) || defined(CONFIG_MACH_LGE_325_BOARD_LGU) /* */
if (chip->temp > 46000)
{
printk("%s: pmic_die_temp = %ld temp_range = %d \n", __func__, *temp, pmic_die_temp_range);
pmic_die_temp_range = 3;
}
else if (chip->temp > 44000)
pmic_die_temp_range = 2;
else if (chip->temp > 39000)
pmic_die_temp_range = 1;
else
pmic_die_temp_range = 0;
#endif
return 0;
#ifdef CONFIG_LGE_PM /* */
sanity_out:
pm8058_xoadc_clear_recentQ();
*temp = MSM_CHARGER_GAUGE_MISSING_TEMP;
chip->temp = MSM_CHARGER_GAUGE_MISSING_TEMP;
printk(KERN_ERR "============== batt temp adc read fail so default temp ===============\n");
return 0;
#endif
}
static int pm8xxx_tz_get_temp_pm8xxx_adc(struct thermal_zone_device *thermal,
unsigned long *temp)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
struct pm8xxx_adc_chan_result result = {
.physical = 0lu,
};
int rc;
if (!chip || !temp)
return -EINVAL;
*temp = chip->temp;
rc = pm8xxx_adc_read(chip->cdata.adc_channel, &result);
if (rc < 0) {
pr_err("%s: adc_channel_read_result() failed, rc = %d\n",
chip->cdata.tm_name, rc);
return rc;
}
*temp = result.physical;
chip->temp = result.physical;
return 0;
}
static int pm8xxx_tz_get_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode *mode)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
if (!chip || !mode)
return -EINVAL;
*mode = chip->mode;
return 0;
}
static int pm8xxx_tz_set_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode mode)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
if (!chip)
return -EINVAL;
if (mode != chip->mode) {
if (mode == THERMAL_DEVICE_ENABLED)
pm8xxx_tm_shutdown_override(chip,
SOFTWARE_OVERRIDE_ENABLED);
else
pm8xxx_tm_shutdown_override(chip,
SOFTWARE_OVERRIDE_DISABLED);
}
chip->mode = mode;
return 0;
}
static int pm8xxx_tz_get_trip_type(struct thermal_zone_device *thermal,
int trip, enum thermal_trip_type *type)
{
if (trip < 0 || !type)
return -EINVAL;
switch (trip) {
case TRIP_STAGE3:
*type = THERMAL_TRIP_CRITICAL;
break;
case TRIP_STAGE2:
*type = THERMAL_TRIP_HOT;
break;
case TRIP_STAGE1:
*type = THERMAL_TRIP_HOT;
break;
default:
return -EINVAL;
}
return 0;
}
static int pm8xxx_tz_get_trip_temp(struct thermal_zone_device *thermal,
int trip, unsigned long *temp)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
int thresh_temp;
if (!chip || trip < 0 || !temp)
return -EINVAL;
thresh_temp = chip->thresh * TEMP_THRESH_STEP +
TEMP_THRESH_MIN;
switch (trip) {
case TRIP_STAGE3:
thresh_temp += 2 * TEMP_STAGE_STEP;
break;
case TRIP_STAGE2:
thresh_temp += TEMP_STAGE_STEP;
break;
case TRIP_STAGE1:
break;
default:
return -EINVAL;
}
*temp = thresh_temp;
return 0;
}
static int pm8xxx_tz_get_crit_temp(struct thermal_zone_device *thermal,
unsigned long *temp)
{
struct pm8xxx_tm_chip *chip = thermal->devdata;
if (!chip || !temp)
return -EINVAL;
*temp = chip->thresh * TEMP_THRESH_STEP + TEMP_THRESH_MIN +
2 * TEMP_STAGE_STEP;
return 0;
}
static struct thermal_zone_device_ops pm8xxx_thermal_zone_ops_no_adc = {
.get_temp = pm8xxx_tz_get_temp_no_adc,
.get_mode = pm8xxx_tz_get_mode,
.set_mode = pm8xxx_tz_set_mode,
.get_trip_type = pm8xxx_tz_get_trip_type,
.get_trip_temp = pm8xxx_tz_get_trip_temp,
.get_crit_temp = pm8xxx_tz_get_crit_temp,
};
static struct thermal_zone_device_ops pm8xxx_thermal_zone_ops_pm8xxx_adc = {
.get_temp = pm8xxx_tz_get_temp_pm8xxx_adc,
.get_mode = pm8xxx_tz_get_mode,
.set_mode = pm8xxx_tz_set_mode,
.get_trip_type = pm8xxx_tz_get_trip_type,
.get_trip_temp = pm8xxx_tz_get_trip_temp,
.get_crit_temp = pm8xxx_tz_get_crit_temp,
};
static struct thermal_zone_device_ops pm8xxx_thermal_zone_ops_pm8058_adc = {
.get_temp = pm8xxx_tz_get_temp_pm8058_adc,
.get_mode = pm8xxx_tz_get_mode,
.set_mode = pm8xxx_tz_set_mode,
.get_trip_type = pm8xxx_tz_get_trip_type,
.get_trip_temp = pm8xxx_tz_get_trip_temp,
.get_crit_temp = pm8xxx_tz_get_crit_temp,
};
static void pm8xxx_tm_work(struct work_struct *work)
{
struct pm8xxx_tm_chip *chip
= container_of(work, struct pm8xxx_tm_chip, irq_work);
int rc;
u8 reg;
rc = pm8xxx_tm_read_ctrl(chip, ®);
if (rc < 0)
goto bail;
if (chip->cdata.adc_type == PM8XXX_TM_ADC_NONE) {
rc = pm8xxx_tm_update_temp_no_adc(chip);
if (rc < 0)
goto bail;
pr_info("%s: Temp Alarm - stage=%u, threshold=%u, "
"temp=%lu mC\n", chip->cdata.tm_name, chip->stage,
chip->thresh, chip->temp);
} else {
chip->stage = (reg & TEMP_ALARM_CTRL_STATUS_MASK)
>> TEMP_ALARM_CTRL_STATUS_SHIFT;
chip->thresh = (reg & TEMP_ALARM_CTRL_THRESH_MASK)
>> TEMP_ALARM_CTRL_THRESH_SHIFT;
pr_info("%s: Temp Alarm - stage=%u, threshold=%u\n",
chip->cdata.tm_name, chip->stage, chip->thresh);
}
/* Clear status bits. */
if (reg & (TEMP_ALARM_CTRL_ST2_SD | TEMP_ALARM_CTRL_ST3_SD)) {
reg &= ~(TEMP_ALARM_CTRL_ST2_SD | TEMP_ALARM_CTRL_ST3_SD
| TEMP_ALARM_CTRL_STATUS_MASK);
pm8xxx_tm_write_ctrl(chip, reg);
}
thermal_zone_device_update(chip->tz_dev);
/* Notify user space */
if (chip->mode == THERMAL_DEVICE_ENABLED)
kobject_uevent(&chip->tz_dev->device.kobj, KOBJ_CHANGE);
bail:
enable_irq(chip->tempstat_irq);
enable_irq(chip->overtemp_irq);
}
static irqreturn_t pm8xxx_tm_isr(int irq, void *data)
{
struct pm8xxx_tm_chip *chip = data;
disable_irq_nosync(chip->tempstat_irq);
disable_irq_nosync(chip->overtemp_irq);
schedule_work(&chip->irq_work);
return IRQ_HANDLED;
}
static int pm8xxx_tm_init_reg(struct pm8xxx_tm_chip *chip)
{
int rc;
u8 reg;
rc = pm8xxx_tm_read_ctrl(chip, ®);
if (rc < 0)
return rc;
chip->stage = (reg & TEMP_ALARM_CTRL_STATUS_MASK)
>> TEMP_ALARM_CTRL_STATUS_SHIFT;
chip->temp = 0;
/* Use temperature threshold set 0: (105, 125, 145) */
chip->thresh = 0;
reg = (chip->thresh << TEMP_ALARM_CTRL_THRESH_SHIFT)
& TEMP_ALARM_CTRL_THRESH_MASK;
rc = pm8xxx_tm_write_ctrl(chip, reg);
if (rc < 0)
return rc;
/*
* Set the PMIC alarm module PWM to have a frequency of 8 Hz. This
* helps cut down on the number of unnecessary interrupts fired when
* changing between thermal stages. Also, Enable the over temperature
* PWM whenever the PMIC is enabled.
*/
reg = (1 << TEMP_ALARM_PWM_EN_SHIFT)
| (3 << TEMP_ALARM_PWM_PER_PRE_SHIFT)
| (3 << TEMP_ALARM_PWM_PER_DIV_SHIFT);
rc = pm8xxx_tm_write_pwm(chip, reg);
return rc;
}
static int pm8xxx_init_adc(struct pm8xxx_tm_chip *chip, bool enable)
{
int rc = 0;
if (chip->cdata.adc_type == PM8XXX_TM_ADC_PM8058_ADC) {
if (enable) {
rc = adc_channel_open(chip->cdata.adc_channel,
&(chip->adc_handle));
if (rc < 0)
pr_err("adc_channel_open() failed.\n");
} else {
adc_channel_close(chip->adc_handle);
}
}
return rc;
}