static int qpnp_tm_suspend(struct device *dev)
{
struct qpnp_tm_chip *chip = dev_get_drvdata(dev);
/* Clear override bits in suspend to allow hardware control */
qpnp_tm_shutdown_override(chip, SOFTWARE_OVERRIDE_DISABLED);
return 0;
}
static int qpnp_tm_resume(struct device *dev)
{
struct qpnp_tm_chip *chip = dev_get_drvdata(dev);
/* Override hardware actions so software can control */
if (chip->mode == THERMAL_DEVICE_ENABLED)
qpnp_tm_shutdown_override(chip, SOFTWARE_OVERRIDE_ENABLED);
return 0;
}
static int qpnp_tz_set_mode(struct thermal_zone_device *thermal,
enum thermal_device_mode mode)
{
struct qpnp_tm_chip *chip = thermal->devdata;
int rc = 0;
if (mode != chip->mode) {
if (mode == THERMAL_DEVICE_ENABLED)
rc = qpnp_tm_shutdown_override(chip,
SOFTWARE_OVERRIDE_ENABLED);
else
rc = qpnp_tm_shutdown_override(chip,
SOFTWARE_OVERRIDE_DISABLED);
chip->mode = mode;
}
return rc;
}
static int __devexit qpnp_tm_remove(struct spmi_device *spmi)
{
struct qpnp_tm_chip *chip = dev_get_drvdata(&spmi->dev);
dev_set_drvdata(&spmi->dev, NULL);
thermal_zone_device_unregister(chip->tz_dev);
kfree(chip->tm_name);
qpnp_tm_shutdown_override(chip, SOFTWARE_OVERRIDE_DISABLED);
free_irq(chip->irq, chip);
cancel_delayed_work_sync(&chip->irq_work);
kfree(chip);
return 0;
}
static int __devinit qpnp_tm_probe(struct spmi_device *spmi)
{
struct device_node *node;
struct resource *res;
struct qpnp_tm_chip *chip;
struct thermal_zone_device_ops *tz_ops;
char *tm_name;
u32 default_temperature;
int rc = 0;
u8 raw_type[2], type, subtype;
if (!spmi || !(&spmi->dev) || !spmi->dev.of_node) {
dev_err(&spmi->dev, "%s: device tree node not found\n",
__func__);
return -EINVAL;
}
node = spmi->dev.of_node;
chip = kzalloc(sizeof(struct qpnp_tm_chip), GFP_KERNEL);
if (!chip) {
dev_err(&spmi->dev, "%s: Can't allocate qpnp_tm_chip\n",
__func__);
return -ENOMEM;
}
dev_set_drvdata(&spmi->dev, chip);
res = spmi_get_resource(spmi, NULL, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&spmi->dev, "%s: node is missing base address\n",
__func__);
rc = -EINVAL;
goto free_chip;
}
chip->base_addr = res->start;
chip->spmi_dev = spmi;
chip->irq = spmi_get_irq(spmi, NULL, 0);
if (chip->irq < 0) {
rc = chip->irq;
dev_err(&spmi->dev, "%s: node is missing irq, rc=%d\n",
__func__, rc);
goto free_chip;
}
chip->tm_name = of_get_property(node, "label", NULL);
if (chip->tm_name == NULL) {
dev_err(&spmi->dev, "%s: node is missing label\n",
__func__);
rc = -EINVAL;
goto free_chip;
}
tm_name = kstrdup(chip->tm_name, GFP_KERNEL);
if (tm_name == NULL) {
dev_err(&spmi->dev, "%s: could not allocate memory for label\n",
__func__);
rc = -ENOMEM;
goto free_chip;
}
chip->tm_name = tm_name;
INIT_DELAYED_WORK(&chip->irq_work, qpnp_tm_work);
/* These bindings are optional, so it is okay if they are not found. */
chip->thresh = THRESH_MAX + 1;
rc = of_property_read_u32(node, "qcom,threshold-set", &chip->thresh);
if (!rc && (chip->thresh < THRESH_MIN || chip->thresh > THRESH_MAX))
dev_err(&spmi->dev, "%s: invalid qcom,threshold-set=%u specified\n",
__func__, chip->thresh);
chip->adc_type = QPNP_TM_ADC_NONE;
rc = of_property_read_u32(node, "qcom,channel-num", &chip->adc_channel);
if (!rc) {
if (chip->adc_channel < 0 || chip->adc_channel >= ADC_MAX_NUM) {
dev_err(&spmi->dev, "%s: invalid qcom,channel-num=%d specified\n",
__func__, chip->adc_channel);
} else {
chip->adc_type = QPNP_TM_ADC_QPNP_ADC;
rc = qpnp_vadc_is_ready();
if (rc) {
/* Probe retry, do not print an error message */
goto err_cancel_work;
}
}
}
if (chip->adc_type == QPNP_TM_ADC_QPNP_ADC)
tz_ops = &qpnp_thermal_zone_ops_qpnp_adc;
else
tz_ops = &qpnp_thermal_zone_ops_no_adc;
chip->allow_software_override
= of_property_read_bool(node, "qcom,allow-override");
default_temperature = DEFAULT_NO_ADC_TEMP;
rc = of_property_read_u32(node, "qcom,default-temp",
&default_temperature);
chip->temperature = default_temperature;
rc = qpnp_tm_read(chip, QPNP_TM_REG_TYPE, raw_type, 2);
if (rc) {
dev_err(&spmi->dev, "%s: could not read type register, rc=%d\n",
__func__, rc);
goto err_cancel_work;
}
type = raw_type[0];
subtype = raw_type[1];
if (type != QPNP_TM_TYPE || subtype != QPNP_TM_SUBTYPE) {
dev_err(&spmi->dev, "%s: invalid type=%02X or subtype=%02X register value\n",
__func__, type, subtype);
rc = -ENODEV;
goto err_cancel_work;
}
rc = qpnp_tm_init_reg(chip);
if (rc) {
dev_err(&spmi->dev, "%s: qpnp_tm_init_reg() failed, rc=%d\n",
__func__, rc);
goto err_cancel_work;
}
if (chip->adc_type == QPNP_TM_ADC_NONE) {
rc = qpnp_tm_init_temp_no_adc(chip);
if (rc) {
dev_err(&spmi->dev, "%s: qpnp_tm_init_temp_no_adc() failed, rc=%d\n",
__func__, rc);
goto err_cancel_work;
}
}
/* Start in HW control; switch to SW control when user changes mode. */
chip->mode = THERMAL_DEVICE_DISABLED;
rc = qpnp_tm_shutdown_override(chip, SOFTWARE_OVERRIDE_DISABLED);
if (rc) {
dev_err(&spmi->dev, "%s: qpnp_tm_shutdown_override() failed, rc=%d\n",
__func__, rc);
goto err_cancel_work;
}
chip->tz_dev = thermal_zone_device_register(tm_name, TRIP_NUM, chip,
tz_ops, 0, 0, 0, 0);
if (chip->tz_dev == NULL) {
dev_err(&spmi->dev, "%s: thermal_zone_device_register() failed.\n",
__func__);
rc = -ENODEV;
goto err_cancel_work;
}
rc = request_irq(chip->irq, qpnp_tm_isr, IRQF_TRIGGER_RISING, tm_name,
chip);
if (rc < 0) {
dev_err(&spmi->dev, "%s: request_irq(%d) failed: %d\n",
__func__, chip->irq, rc);
goto err_free_tz;
}
return 0;
err_free_tz:
thermal_zone_device_unregister(chip->tz_dev);
err_cancel_work:
cancel_delayed_work_sync(&chip->irq_work);
kfree(chip->tm_name);
free_chip:
dev_set_drvdata(&spmi->dev, NULL);
kfree(chip);
return rc;
}
static int __devinit qpnp_tm_probe(struct spmi_device *spmi)
{
struct device_node *node;
struct resource *res;
struct qpnp_tm_chip *chip;
struct thermal_zone_device_ops *tz_ops;
char *tm_name;
u32 default_temperature;
int rc = 0;
u8 raw_type[2], type, subtype;
#ifdef CONFIG_LGE_PM
struct spmi_resource *spmi_resource;
u8 batt_pres_rt_sts;
#endif
if (!spmi || !(&spmi->dev) || !spmi->dev.of_node) {
dev_err(&spmi->dev, "%s: device tree node not found\n",
__func__);
return -EINVAL;
}
node = spmi->dev.of_node;
chip = kzalloc(sizeof(struct qpnp_tm_chip), GFP_KERNEL);
if (!chip) {
dev_err(&spmi->dev, "%s: Can't allocate qpnp_tm_chip\n",
__func__);
return -ENOMEM;
}
dev_set_drvdata(&spmi->dev, chip);
res = spmi_get_resource(spmi, NULL, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&spmi->dev, "%s: node is missing base address\n",
__func__);
rc = -EINVAL;
goto free_chip;
}
chip->base_addr = res->start;
chip->spmi_dev = spmi;
chip->irq = spmi_get_irq(spmi, NULL, 0);
if (chip->irq < 0) {
rc = chip->irq;
dev_err(&spmi->dev, "%s: node is missing irq, rc=%d\n",
__func__, rc);
goto free_chip;
}
chip->tm_name = of_get_property(node, "label", NULL);
if (chip->tm_name == NULL) {
dev_err(&spmi->dev, "%s: node is missing label\n",
__func__);
rc = -EINVAL;
goto free_chip;
}
tm_name = kstrdup(chip->tm_name, GFP_KERNEL);
if (tm_name == NULL) {
dev_err(&spmi->dev, "%s: could not allocate memory for label\n",
__func__);
rc = -ENOMEM;
goto free_chip;
}
chip->tm_name = tm_name;
INIT_DELAYED_WORK(&chip->irq_work, qpnp_tm_work);
/* These bindings are optional, so it is okay if they are not found. */
chip->thresh = THRESH_MAX + 1;
rc = of_property_read_u32(node, "qcom,threshold-set", &chip->thresh);
if (!rc && (chip->thresh < THRESH_MIN || chip->thresh > THRESH_MAX))
dev_err(&spmi->dev, "%s: invalid qcom,threshold-set=%u specified\n",
__func__, chip->thresh);
chip->adc_type = QPNP_TM_ADC_NONE;
rc = of_property_read_u32(node, "qcom,channel-num", &chip->adc_channel);
if (!rc) {
if (chip->adc_channel < 0 || chip->adc_channel >= ADC_MAX_NUM) {
dev_err(&spmi->dev, "%s: invalid qcom,channel-num=%d specified\n",
__func__, chip->adc_channel);
} else {
chip->adc_type = QPNP_TM_ADC_QPNP_ADC;
chip->vadc_dev = qpnp_get_vadc(&spmi->dev,
"temp_alarm");
if (IS_ERR(chip->vadc_dev)) {
rc = PTR_ERR(chip->vadc_dev);
if (rc != -EPROBE_DEFER)
pr_err("vadc property missing\n");
goto err_cancel_work;
}
}
}
if (chip->adc_type == QPNP_TM_ADC_QPNP_ADC)
tz_ops = &qpnp_thermal_zone_ops_qpnp_adc;
else
tz_ops = &qpnp_thermal_zone_ops_no_adc;
chip->allow_software_override
= of_property_read_bool(node, "qcom,allow-override");
default_temperature = DEFAULT_NO_ADC_TEMP;
rc = of_property_read_u32(node, "qcom,default-temp",
&default_temperature);
chip->temperature = default_temperature;
rc = qpnp_tm_read(chip, QPNP_TM_REG_TYPE, raw_type, 2);
if (rc) {
dev_err(&spmi->dev, "%s: could not read type register, rc=%d\n",
__func__, rc);
goto err_cancel_work;
}
type = raw_type[0];
subtype = raw_type[1];
if (type != QPNP_TM_TYPE || subtype != QPNP_TM_SUBTYPE) {
dev_err(&spmi->dev, "%s: invalid type=%02X or subtype=%02X register value\n",
__func__, type, subtype);
rc = -ENODEV;
goto err_cancel_work;
}
rc = qpnp_tm_init_reg(chip);
if (rc) {
dev_err(&spmi->dev, "%s: qpnp_tm_init_reg() failed, rc=%d\n",
__func__, rc);
goto err_cancel_work;
}
if (chip->adc_type == QPNP_TM_ADC_NONE) {
rc = qpnp_tm_init_temp_no_adc(chip);
if (rc) {
dev_err(&spmi->dev, "%s: qpnp_tm_init_temp_no_adc() failed, rc=%d\n",
__func__, rc);
goto err_cancel_work;
}
}
/* Start in HW control; switch to SW control when user changes mode. */
chip->mode = THERMAL_DEVICE_DISABLED;
rc = qpnp_tm_shutdown_override(chip, SOFTWARE_OVERRIDE_DISABLED);
if (rc) {
dev_err(&spmi->dev, "%s: qpnp_tm_shutdown_override() failed, rc=%d\n",
__func__, rc);
goto err_cancel_work;
}
chip->tz_dev = thermal_zone_device_register(tm_name, TRIP_NUM, chip,
tz_ops, 0, 0, 0, 0);
if (chip->tz_dev == NULL) {
dev_err(&spmi->dev, "%s: thermal_zone_device_register() failed.\n",
__func__);
rc = -ENODEV;
goto err_cancel_work;
}
rc = request_irq(chip->irq, qpnp_tm_isr, IRQF_TRIGGER_RISING, tm_name,
chip);
if (rc < 0) {
dev_err(&spmi->dev, "%s: request_irq(%d) failed: %d\n",
__func__, chip->irq, rc);
goto err_free_tz;
}
#ifdef CONFIG_LGE_PM
spmi_for_each_container_dev(spmi_resource, spmi) {
if (!spmi_resource) {
pr_err("qpnp temp alarm : spmi resource absent\n");
goto fail_bat_if;
}
res = spmi_get_resource(spmi, spmi_resource,
IORESOURCE_MEM, 0);
if (!(res && res->start)) {
pr_err("node %s IO resource absent!\n",
spmi->dev.of_node->full_name);
goto fail_bat_if;
}
rc = qpnp_register_read(chip, &subtype,
res->start + REG_OFFSET_PERP_SUBTYPE, 1);
if (rc) {
pr_err("Peripheral subtype read failed rc=%d\n", rc);
goto fail_bat_if;
}
switch (subtype) {
case SMBB_BAT_IF_SUBTYPE:
pr_err("qpnp bat_if block enable for batt insert remove irq.\n");
chip->bat_if_base = res->start;
chip->batt_present_irq = spmi_get_irq_byname(chip->spmi_dev,
spmi_resource, "batt-pres");
if (chip->batt_present_irq < 0) {
pr_err("Unable to get batt_present_irq\n");
goto fail_bat_if;
}
rc = devm_request_irq(&(chip->spmi_dev->dev),
chip->batt_present_irq,
qpnp_batif_batt_inserted_removed_irq_handler,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"batt_remove_insert", chip);
if (rc < 0) {
pr_err("Can't request %d batt irq for insert, remove : %d\n",
chip->batt_present_irq, rc);
goto fail_bat_if;
}
rc = qpnp_register_masked_write(chip,
INT_EN_SET(chip->bat_if_base),
BATT_PRES_EN_BIT, BATT_PRES_EN_BIT, 1);
if (rc) {
pr_err("failed to enable BAT_IF_INT_EN_SET rc=%d\n", rc);
goto fail_bat_if;
}
/* smb349 charger battery present W/A */
rc = qpnp_register_read(chip, &batt_pres_rt_sts,
INT_RT_STS(chip->bat_if_base), 1);
if (rc) {
pr_err("spmi read failed: addr=%03X, rc=%d\n",
INT_RT_STS(chip->bat_if_base), rc);
pr_err("assume that battery is present\n");
/* battery present */
pm_batt_rt_sts = 1;
} else {
pm_batt_rt_sts =
(int)(batt_pres_rt_sts & BATT_IF_PRES_RT_STATUS);
pr_err("%s : init PMIC battery RTS = %d\n",
__func__, pm_batt_rt_sts);
}
enable_irq_wake(chip->batt_present_irq);
break;
default:
break;
}
}
INIT_WORK(&chip->batt_insert_remove_worker, batt_insert_remove_work);
INIT_DELAYED_WORK(&chip->batt_insert_remove_worker_second,
batt_insert_remove_work_second);
wake_lock_init(&chip->battgone_wake_lock,
WAKE_LOCK_SUSPEND, "batt removed");
#endif
return 0;
err_free_tz:
thermal_zone_device_unregister(chip->tz_dev);
err_cancel_work:
cancel_delayed_work_sync(&chip->irq_work);
kfree(chip->tm_name);
free_chip:
dev_set_drvdata(&spmi->dev, NULL);
kfree(chip);
return rc;
#ifdef CONFIG_LGE_PM
fail_bat_if:
pr_err("Cannot enable qpnp bat_if block.\n");
return 0;
#endif
}