#define BTEMP_BATCTRL_CURR_SRC_7UA 7
#define BTEMP_BATCTRL_CURR_SRC_20UA 20
+#define BTEMP_BATCTRL_CURR_SRC_16UA 16
+#define BTEMP_BATCTRL_CURR_SRC_18UA 18
+
#define to_ab8500_btemp_device_info(x) container_of((x), \
struct ab8500_btemp, btemp_psy);
* @parent: Pointer to the struct ab8500
* @gpadc: Pointer to the struct gpadc
* @fg: Pointer to the struct fg
- * @bat: Pointer to the abx500_bm platform data
+ * @bm: Platform specific battery management information
* @btemp_psy: Structure for BTEMP specific battery properties
* @events: Structure for information about events triggered
* @btemp_ranges: Battery temperature range structure
* @btemp_wq: Work queue for measuring the temperature periodically
* @btemp_periodic_work: Work for measuring the temperature periodically
+ * @initialized: True if battery id read.
*/
struct ab8500_btemp {
struct device *dev;
struct ab8500 *parent;
struct ab8500_gpadc *gpadc;
struct ab8500_fg *fg;
- struct abx500_bm_data *bat;
+ struct abx500_bm_data *bm;
struct power_supply btemp_psy;
struct ab8500_btemp_events events;
struct ab8500_btemp_ranges btemp_ranges;
struct workqueue_struct *btemp_wq;
struct delayed_work btemp_periodic_work;
+ bool initialized;
};
/* BTEMP power supply properties */
return (450000 * (v_batctrl)) / (1800 - v_batctrl);
}
- if (di->bat->adc_therm == ABx500_ADC_THERM_BATCTRL) {
+ if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL) {
/*
* If the battery has internal NTC, we use the current
* source to calculate the resistance, 7uA or 20uA
*/
rbs = (v_batctrl * 1000
- - di->bat->gnd_lift_resistance * inst_curr)
+ - di->bm->gnd_lift_resistance * inst_curr)
/ di->curr_source;
} else {
/*
return 0;
/* Only do this for batteries with internal NTC */
- if (di->bat->adc_therm == ABx500_ADC_THERM_BATCTRL && enable) {
- if (di->curr_source == BTEMP_BATCTRL_CURR_SRC_7UA)
- curr = BAT_CTRL_7U_ENA;
- else
- curr = BAT_CTRL_20U_ENA;
+ if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL && enable) {
+
+ if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
+ if (di->curr_source == BTEMP_BATCTRL_CURR_SRC_16UA)
+ curr = BAT_CTRL_16U_ENA;
+ else
+ curr = BAT_CTRL_18U_ENA;
+ } else {
+ if (di->curr_source == BTEMP_BATCTRL_CURR_SRC_7UA)
+ curr = BAT_CTRL_7U_ENA;
+ else
+ curr = BAT_CTRL_20U_ENA;
+ }
dev_dbg(di->dev, "Set BATCTRL %duA\n", di->curr_source);
__func__);
goto disable_curr_source;
}
- } else if (di->bat->adc_therm == ABx500_ADC_THERM_BATCTRL && !enable) {
+ } else if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL && !enable) {
dev_dbg(di->dev, "Disable BATCTRL curr source\n");
- /* Write 0 to the curr bits */
- ret = abx500_mask_and_set_register_interruptible(di->dev,
- AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
- BAT_CTRL_7U_ENA | BAT_CTRL_20U_ENA,
- ~(BAT_CTRL_7U_ENA | BAT_CTRL_20U_ENA));
+ if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
+ /* Write 0 to the curr bits */
+ ret = abx500_mask_and_set_register_interruptible(
+ di->dev,
+ AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
+ BAT_CTRL_16U_ENA | BAT_CTRL_18U_ENA,
+ ~(BAT_CTRL_16U_ENA | BAT_CTRL_18U_ENA));
+ } else {
+ /* Write 0 to the curr bits */
+ ret = abx500_mask_and_set_register_interruptible(
+ di->dev,
+ AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
+ BAT_CTRL_7U_ENA | BAT_CTRL_20U_ENA,
+ ~(BAT_CTRL_7U_ENA | BAT_CTRL_20U_ENA));
+ }
+
if (ret) {
dev_err(di->dev, "%s failed disabling current source\n",
__func__);
* if we got an error above
*/
disable_curr_source:
- /* Write 0 to the curr bits */
- ret = abx500_mask_and_set_register_interruptible(di->dev,
+ if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
+ /* Write 0 to the curr bits */
+ ret = abx500_mask_and_set_register_interruptible(di->dev,
+ AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
+ BAT_CTRL_16U_ENA | BAT_CTRL_18U_ENA,
+ ~(BAT_CTRL_16U_ENA | BAT_CTRL_18U_ENA));
+ } else {
+ /* Write 0 to the curr bits */
+ ret = abx500_mask_and_set_register_interruptible(di->dev,
AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
BAT_CTRL_7U_ENA | BAT_CTRL_20U_ENA,
~(BAT_CTRL_7U_ENA | BAT_CTRL_20U_ENA));
+ }
+
if (ret) {
dev_err(di->dev, "%s failed disabling current source\n",
__func__);
return ret;
}
- /*
- * Since there is no interrupt when current measurement is done,
- * loop for over 250ms (250ms is one sample conversion time
- * with 32.768 Khz RTC clock). Note that a stop time must be set
- * since the ab8500_btemp_read_batctrl_voltage call can block and
- * take an unknown amount of time to complete.
- */
+ do {
+ msleep(20);
+ } while (!ab8500_fg_inst_curr_started(di->fg));
+
i = 0;
do {
int rbat, rntc, vntc;
u8 id;
- id = di->bat->batt_id;
+ id = di->bm->batt_id;
- if (di->bat->adc_therm == ABx500_ADC_THERM_BATCTRL &&
+ if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL &&
id != BATTERY_UNKNOWN) {
rbat = ab8500_btemp_get_batctrl_res(di);
}
temp = ab8500_btemp_res_to_temp(di,
- di->bat->bat_type[id].r_to_t_tbl,
- di->bat->bat_type[id].n_temp_tbl_elements, rbat);
+ di->bm->bat_type[id].r_to_t_tbl,
+ di->bm->bat_type[id].n_temp_tbl_elements, rbat);
} else {
vntc = ab8500_gpadc_convert(di->gpadc, BTEMP_BALL);
if (vntc < 0) {
rntc = 230000 * vntc / (VTVOUT_V - vntc);
temp = ab8500_btemp_res_to_temp(di,
- di->bat->bat_type[id].r_to_t_tbl,
- di->bat->bat_type[id].n_temp_tbl_elements, rntc);
+ di->bm->bat_type[id].r_to_t_tbl,
+ di->bm->bat_type[id].n_temp_tbl_elements, rntc);
prev = temp;
}
dev_dbg(di->dev, "Battery temperature is %d\n", temp);
{
int res;
u8 i;
+ if (is_ab9540(di->parent) || is_ab8505(di->parent))
+ di->curr_source = BTEMP_BATCTRL_CURR_SRC_16UA;
+ else
+ di->curr_source = BTEMP_BATCTRL_CURR_SRC_7UA;
- di->curr_source = BTEMP_BATCTRL_CURR_SRC_7UA;
- di->bat->batt_id = BATTERY_UNKNOWN;
+ di->bm->batt_id = BATTERY_UNKNOWN;
res = ab8500_btemp_get_batctrl_res(di);
if (res < 0) {
}
/* BATTERY_UNKNOWN is defined on position 0, skip it! */
- for (i = BATTERY_UNKNOWN + 1; i < di->bat->n_btypes; i++) {
- if ((res <= di->bat->bat_type[i].resis_high) &&
- (res >= di->bat->bat_type[i].resis_low)) {
+ for (i = BATTERY_UNKNOWN + 1; i < di->bm->n_btypes; i++) {
+ if ((res <= di->bm->bat_type[i].resis_high) &&
+ (res >= di->bm->bat_type[i].resis_low)) {
dev_dbg(di->dev, "Battery detected on %s"
" low %d < res %d < high: %d"
" index: %d\n",
- di->bat->adc_therm == ABx500_ADC_THERM_BATCTRL ?
+ di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL ?
"BATCTRL" : "BATTEMP",
- di->bat->bat_type[i].resis_low, res,
- di->bat->bat_type[i].resis_high, i);
+ di->bm->bat_type[i].resis_low, res,
+ di->bm->bat_type[i].resis_high, i);
- di->bat->batt_id = i;
+ di->bm->batt_id = i;
break;
}
}
- if (di->bat->batt_id == BATTERY_UNKNOWN) {
+ if (di->bm->batt_id == BATTERY_UNKNOWN) {
dev_warn(di->dev, "Battery identified as unknown"
", resistance %d Ohm\n", res);
return -ENXIO;
* We only have to change current source if the
* detected type is Type 1, else we use the 7uA source
*/
- if (di->bat->adc_therm == ABx500_ADC_THERM_BATCTRL &&
- di->bat->batt_id == 1) {
- dev_dbg(di->dev, "Set BATCTRL current source to 20uA\n");
- di->curr_source = BTEMP_BATCTRL_CURR_SRC_20UA;
+ if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL &&
+ di->bm->batt_id == 1) {
+ if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
+ dev_dbg(di->dev, "Set BATCTRL current source to 16uA\n");
+ di->curr_source = BTEMP_BATCTRL_CURR_SRC_16UA;
+ } else {
+ dev_dbg(di->dev, "Set BATCTRL current source to 20uA\n");
+ di->curr_source = BTEMP_BATCTRL_CURR_SRC_20UA;
+ }
}
- return di->bat->batt_id;
+ return di->bm->batt_id;
}
/**
struct ab8500_btemp *di = container_of(work,
struct ab8500_btemp, btemp_periodic_work.work);
+ if (!di->initialized) {
+ di->initialized = true;
+ /* Identify the battery */
+ if (ab8500_btemp_id(di) < 0)
+ dev_warn(di->dev, "failed to identify the battery\n");
+ }
+
di->bat_temp = ab8500_btemp_measure_temp(di);
if (di->bat_temp != di->prev_bat_temp) {
}
if (di->events.ac_conn || di->events.usb_conn)
- interval = di->bat->temp_interval_chg;
+ interval = di->bm->temp_interval_chg;
else
- interval = di->bat->temp_interval_nochg;
+ interval = di->bm->temp_interval_nochg;
/* Schedule a new measurement */
queue_delayed_work(di->btemp_wq,
{
struct ab8500_btemp *di = _di;
- if (is_ab8500_2p0_or_earlier(di->parent)) {
+ if (is_ab8500_3p3_or_earlier(di->parent)) {
dev_dbg(di->dev, "Ignore false btemp low irq"
- " for ABB cut 1.0, 1.1 and 2.0\n");
+ " for ABB cut 1.0, 1.1, 2.0 and 3.3\n");
} else {
dev_crit(di->dev, "Battery temperature lower than -10deg c\n");
int temp = 0;
/*
- * The BTEMP events are not reliabe on AB8500 cut2.0
+ * The BTEMP events are not reliabe on AB8500 cut3.3
* and prior versions
*/
- if (is_ab8500_2p0_or_earlier(di->parent)) {
+ if (is_ab8500_3p3_or_earlier(di->parent)) {
temp = di->bat_temp * 10;
} else {
if (di->events.btemp_low) {
if (temp > di->btemp_ranges.btemp_low_limit)
- temp = di->btemp_ranges.btemp_low_limit;
+ temp = di->btemp_ranges.btemp_low_limit * 10;
else
temp = di->bat_temp * 10;
} else if (di->events.btemp_high) {
if (temp < di->btemp_ranges.btemp_high_limit)
- temp = di->btemp_ranges.btemp_high_limit;
+ temp = di->btemp_ranges.btemp_high_limit * 10;
else
temp = di->bat_temp * 10;
} else if (di->events.btemp_lowmed) {
if (temp > di->btemp_ranges.btemp_med_limit)
- temp = di->btemp_ranges.btemp_med_limit;
+ temp = di->btemp_ranges.btemp_med_limit * 10;
else
temp = di->bat_temp * 10;
} else if (di->events.btemp_medhigh) {
if (temp < di->btemp_ranges.btemp_med_limit)
- temp = di->btemp_ranges.btemp_med_limit;
+ temp = di->btemp_ranges.btemp_med_limit * 10;
else
temp = di->bat_temp * 10;
} else
val->intval = 1;
break;
case POWER_SUPPLY_PROP_TECHNOLOGY:
- val->intval = di->bat->bat_type[di->bat->batt_id].name;
+ val->intval = di->bm->bat_type[di->bm->batt_id].name;
break;
case POWER_SUPPLY_PROP_TEMP:
val->intval = ab8500_btemp_get_temp(di);
static int ab8500_btemp_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
+ struct abx500_bm_data *plat = pdev->dev.platform_data;
struct ab8500_btemp *di;
int irq, i, ret = 0;
u8 val;
dev_err(&pdev->dev, "%s no mem for ab8500_btemp\n", __func__);
return -ENOMEM;
}
- di->bat = pdev->mfd_cell->platform_data;
- if (!di->bat) {
- if (np) {
- ret = bmdevs_of_probe(&pdev->dev, np, &di->bat);
- if (ret) {
- dev_err(&pdev->dev,
- "failed to get battery information\n");
- return ret;
- }
- } else {
- dev_err(&pdev->dev, "missing dt node for ab8500_btemp\n");
- return -EINVAL;
+
+ if (!plat) {
+ dev_err(&pdev->dev, "no battery management data supplied\n");
+ return -EINVAL;
+ }
+ di->bm = plat;
+
+ if (np) {
+ ret = ab8500_bm_of_probe(&pdev->dev, np, di->bm);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to get battery information\n");
+ return ret;
}
- } else {
- dev_info(&pdev->dev, "falling back to legacy platform data\n");
}
/* get parent data */
di->parent = dev_get_drvdata(pdev->dev.parent);
di->gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
+ di->initialized = false;
+
/* BTEMP supply */
di->btemp_psy.name = "ab8500_btemp";
di->btemp_psy.type = POWER_SUPPLY_TYPE_BATTERY;
INIT_DEFERRABLE_WORK(&di->btemp_periodic_work,
ab8500_btemp_periodic_work);
- /* Identify the battery */
- if (ab8500_btemp_id(di) < 0)
- dev_warn(di->dev, "failed to identify the battery\n");
-
/* Set BTEMP thermal limits. Low and Med are fixed */
di->btemp_ranges.btemp_low_limit = BTEMP_THERMAL_LOW_LIMIT;
di->btemp_ranges.btemp_med_limit = BTEMP_THERMAL_MED_LIMIT;
platform_driver_unregister(&ab8500_btemp_driver);
}
-subsys_initcall_sync(ab8500_btemp_init);
+device_initcall(ab8500_btemp_init);
module_exit(ab8500_btemp_exit);
MODULE_LICENSE("GPL v2");
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