be negative; there is no empty or full value. It is only useful for
relative, time-based measurements.
+CONSTANT_CHARGE_CURRENT - constant charge current programmed by charger.
+
+CONSTANT_CHARGE_VOLTAGE - constant charge voltage programmed by charger.
+
ENERGY_FULL, ENERGY_EMPTY - same as above but for energy.
CAPACITY - capacity in percents.
+CAPACITY_ALERT_MIN - minimum capacity alert value in percents.
+CAPACITY_ALERT_MAX - maximum capacity alert value in percents.
CAPACITY_LEVEL - capacity level. This corresponds to
POWER_SUPPLY_CAPACITY_LEVEL_*.
TEMP - temperature of the power supply.
+TEMP_ALERT_MIN - minimum battery temperature alert value in milli centigrade.
+TEMP_ALERT_MAX - maximum battery temperature alert value in milli centigrade.
TEMP_AMBIENT - ambient temperature.
+TEMP_AMBIENT_ALERT_MIN - minimum ambient temperature alert value in milli centigrade.
+TEMP_AMBIENT_ALERT_MAX - maximum ambient temperature alert value in milli centigrade.
TIME_TO_EMPTY - seconds left for battery to be considered empty (i.e.
while battery powers a load)
static struct regulator_consumer_supply usb1v8 = {
.supply = "usb1v8",
};
- static struct regulator_consumer_supply usb3v1 = {
- .supply = "usb3v1",
+ static struct regulator_consumer_supply usb3v1[] = {
+ { .supply = "usb3v1" },
+ { .supply = "bci3v1" },
};
/* First add the regulators so that they can be used by transceiver */
return PTR_ERR(child);
child = add_regulator_linked(TWL4030_REG_VUSB3V1,
- &usb_fixed, &usb3v1, 1,
+ &usb_fixed, usb3v1, 2,
features);
if (IS_ERR(child))
return PTR_ERR(child);
if (twl_has_regulator() && child) {
usb1v5.dev_name = dev_name(child);
usb1v8.dev_name = dev_name(child);
- usb3v1.dev_name = dev_name(child);
+ usb3v1[0].dev_name = dev_name(child);
}
}
if (twl_has_usb() && pdata->usb && twl_class_is_6030()) {
config CHARGER_MANAGER
bool "Battery charger manager for multiple chargers"
depends on REGULATOR && RTC_CLASS
+ select EXTCON
help
Say Y to enable charger-manager support, which allows multiple
chargers attached to a battery and multiple batteries attached to a
* Datasheets:
* http://focus.ti.com/docs/prod/folders/print/bq27000.html
* http://focus.ti.com/docs/prod/folders/print/bq27500.html
+ * http://www.ti.com/product/bq27425-g1
*/
#include <linux/module.h>
#define BQ27x00_REG_LMD 0x12 /* Last measured discharge */
#define BQ27x00_REG_CYCT 0x2A /* Cycle count total */
#define BQ27x00_REG_AE 0x22 /* Available energy */
+#define BQ27x00_POWER_AVG 0x24
#define BQ27000_REG_RSOC 0x0B /* Relative State-of-Charge */
#define BQ27000_REG_ILMD 0x76 /* Initial last measured discharge */
#define BQ27500_FLAG_SOCF BIT(1) /* State-of-Charge threshold final */
#define BQ27500_FLAG_SOC1 BIT(2) /* State-of-Charge threshold 1 */
#define BQ27500_FLAG_FC BIT(9)
+#define BQ27500_FLAG_OTC BIT(15)
+
+/* bq27425 register addresses are same as bq27x00 addresses minus 4 */
+#define BQ27425_REG_OFFSET 0x04
+#define BQ27425_REG_SOC 0x18 /* Register address plus offset */
#define BQ27000_RS 20 /* Resistor sense */
+#define BQ27x00_POWER_CONSTANT (256 * 29200 / 1000)
struct bq27x00_device_info;
struct bq27x00_access_methods {
int (*read)(struct bq27x00_device_info *di, u8 reg, bool single);
};
-enum bq27x00_chip { BQ27000, BQ27500 };
+enum bq27x00_chip { BQ27000, BQ27500, BQ27425};
struct bq27x00_reg_cache {
int temperature;
int capacity;
int energy;
int flags;
+ int power_avg;
+ int health;
};
struct bq27x00_device_info {
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_ENERGY_NOW,
+ POWER_SUPPLY_PROP_POWER_AVG,
+ POWER_SUPPLY_PROP_HEALTH,
+};
+
+static enum power_supply_property bq27425_battery_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_CAPACITY,
+ POWER_SUPPLY_PROP_CAPACITY_LEVEL,
+ POWER_SUPPLY_PROP_TEMP,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_CHARGE_FULL,
+ POWER_SUPPLY_PROP_CHARGE_NOW,
+ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
};
static unsigned int poll_interval = 360;
static inline int bq27x00_read(struct bq27x00_device_info *di, u8 reg,
bool single)
{
+ if (di->chip == BQ27425)
+ return di->bus.read(di, reg - BQ27425_REG_OFFSET, single);
return di->bus.read(di, reg, single);
}
+/*
+ * Higher versions of the chip like BQ27425 and BQ27500
+ * differ from BQ27000 and BQ27200 in calculation of certain
+ * parameters. Hence we need to check for the chip type.
+ */
+static bool bq27xxx_is_chip_version_higher(struct bq27x00_device_info *di)
+{
+ if (di->chip == BQ27425 || di->chip == BQ27500)
+ return true;
+ return false;
+}
+
/*
* Return the battery Relative State-of-Charge
* Or < 0 if something fails.
if (di->chip == BQ27500)
rsoc = bq27x00_read(di, BQ27500_REG_SOC, false);
+ else if (di->chip == BQ27425)
+ rsoc = bq27x00_read(di, BQ27425_REG_SOC, false);
else
rsoc = bq27x00_read(di, BQ27000_REG_RSOC, true);
return charge;
}
- if (di->chip == BQ27500)
+ if (bq27xxx_is_chip_version_higher(di))
charge *= 1000;
else
charge = charge * 3570 / BQ27000_RS;
{
int ilmd;
- if (di->chip == BQ27500)
+ if (bq27xxx_is_chip_version_higher(di))
ilmd = bq27x00_read(di, BQ27500_REG_DCAP, false);
else
ilmd = bq27x00_read(di, BQ27000_REG_ILMD, true);
return ilmd;
}
- if (di->chip == BQ27500)
+ if (bq27xxx_is_chip_version_higher(di))
ilmd *= 1000;
else
ilmd = ilmd * 256 * 3570 / BQ27000_RS;
return temp;
}
- if (di->chip == BQ27500)
+ if (bq27xxx_is_chip_version_higher(di))
temp -= 2731;
else
temp = ((temp * 5) - 5463) / 2;
return tval * 60;
}
+/*
+ * Read a power avg register.
+ * Return < 0 if something fails.
+ */
+static int bq27x00_battery_read_pwr_avg(struct bq27x00_device_info *di, u8 reg)
+{
+ int tval;
+
+ tval = bq27x00_read(di, reg, false);
+ if (tval < 0) {
+ dev_err(di->dev, "error reading power avg rgister %02x: %d\n",
+ reg, tval);
+ return tval;
+ }
+
+ if (di->chip == BQ27500)
+ return tval;
+ else
+ return (tval * BQ27x00_POWER_CONSTANT) / BQ27000_RS;
+}
+
+/*
+ * Read flag register.
+ * Return < 0 if something fails.
+ */
+static int bq27x00_battery_read_health(struct bq27x00_device_info *di)
+{
+ int tval;
+
+ tval = bq27x00_read(di, BQ27x00_REG_FLAGS, false);
+ if (tval < 0) {
+ dev_err(di->dev, "error reading flag register:%d\n", tval);
+ return tval;
+ }
+
+ if ((di->chip == BQ27500)) {
+ if (tval & BQ27500_FLAG_SOCF)
+ tval = POWER_SUPPLY_HEALTH_DEAD;
+ else if (tval & BQ27500_FLAG_OTC)
+ tval = POWER_SUPPLY_HEALTH_OVERHEAT;
+ else
+ tval = POWER_SUPPLY_HEALTH_GOOD;
+ return tval;
+ } else {
+ if (tval & BQ27000_FLAG_EDV1)
+ tval = POWER_SUPPLY_HEALTH_DEAD;
+ else
+ tval = POWER_SUPPLY_HEALTH_GOOD;
+ return tval;
+ }
+
+ return -1;
+}
+
static void bq27x00_update(struct bq27x00_device_info *di)
{
struct bq27x00_reg_cache cache = {0, };
bool is_bq27500 = di->chip == BQ27500;
+ bool is_bq27425 = di->chip == BQ27425;
cache.flags = bq27x00_read(di, BQ27x00_REG_FLAGS, !is_bq27500);
if (cache.flags >= 0) {
- if (!is_bq27500 && (cache.flags & BQ27000_FLAG_CI)) {
+ if (!is_bq27500 && !is_bq27425
+ && (cache.flags & BQ27000_FLAG_CI)) {
dev_info(di->dev, "battery is not calibrated! ignoring capacity values\n");
cache.capacity = -ENODATA;
cache.energy = -ENODATA;
cache.time_to_empty_avg = -ENODATA;
cache.time_to_full = -ENODATA;
cache.charge_full = -ENODATA;
+ cache.health = -ENODATA;
} else {
cache.capacity = bq27x00_battery_read_rsoc(di);
- cache.energy = bq27x00_battery_read_energy(di);
- cache.time_to_empty = bq27x00_battery_read_time(di, BQ27x00_REG_TTE);
- cache.time_to_empty_avg = bq27x00_battery_read_time(di, BQ27x00_REG_TTECP);
- cache.time_to_full = bq27x00_battery_read_time(di, BQ27x00_REG_TTF);
+ if (!is_bq27425) {
+ cache.energy = bq27x00_battery_read_energy(di);
+ cache.time_to_empty =
+ bq27x00_battery_read_time(di,
+ BQ27x00_REG_TTE);
+ cache.time_to_empty_avg =
+ bq27x00_battery_read_time(di,
+ BQ27x00_REG_TTECP);
+ cache.time_to_full =
+ bq27x00_battery_read_time(di,
+ BQ27x00_REG_TTF);
+ }
cache.charge_full = bq27x00_battery_read_lmd(di);
+ cache.health = bq27x00_battery_read_health(di);
}
cache.temperature = bq27x00_battery_read_temperature(di);
+ if (!is_bq27425)
+ cache.cycle_count = bq27x00_battery_read_cyct(di);
cache.cycle_count = bq27x00_battery_read_cyct(di);
+ cache.power_avg =
+ bq27x00_battery_read_pwr_avg(di, BQ27x00_POWER_AVG);
/* We only have to read charge design full once */
if (di->charge_design_full <= 0)
return curr;
}
- if (di->chip == BQ27500) {
+ if (bq27xxx_is_chip_version_higher(di)) {
/* bq27500 returns signed value */
val->intval = (int)((s16)curr) * 1000;
} else {
{
int status;
- if (di->chip == BQ27500) {
+ if (bq27xxx_is_chip_version_higher(di)) {
if (di->cache.flags & BQ27500_FLAG_FC)
status = POWER_SUPPLY_STATUS_FULL;
else if (di->cache.flags & BQ27500_FLAG_DSC)
{
int level;
- if (di->chip == BQ27500) {
+ if (bq27xxx_is_chip_version_higher(di)) {
if (di->cache.flags & BQ27500_FLAG_FC)
level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
else if (di->cache.flags & BQ27500_FLAG_SOC1)
case POWER_SUPPLY_PROP_ENERGY_NOW:
ret = bq27x00_simple_value(di->cache.energy, val);
break;
+ case POWER_SUPPLY_PROP_POWER_AVG:
+ ret = bq27x00_simple_value(di->cache.power_avg, val);
+ break;
+ case POWER_SUPPLY_PROP_HEALTH:
+ ret = bq27x00_simple_value(di->cache.health, val);
+ break;
default:
return -EINVAL;
}
int ret;
di->bat.type = POWER_SUPPLY_TYPE_BATTERY;
- di->bat.properties = bq27x00_battery_props;
- di->bat.num_properties = ARRAY_SIZE(bq27x00_battery_props);
+ di->chip = BQ27425;
+ if (di->chip == BQ27425) {
+ di->bat.properties = bq27425_battery_props;
+ di->bat.num_properties = ARRAY_SIZE(bq27425_battery_props);
+ } else {
+ di->bat.properties = bq27x00_battery_props;
+ di->bat.num_properties = ARRAY_SIZE(bq27x00_battery_props);
+ }
di->bat.get_property = bq27x00_battery_get_property;
di->bat.external_power_changed = bq27x00_external_power_changed;
static const struct i2c_device_id bq27x00_id[] = {
{ "bq27200", BQ27000 }, /* bq27200 is same as bq27000, but with i2c */
{ "bq27500", BQ27500 },
+ { "bq27425", BQ27425 },
{},
};
MODULE_DEVICE_TABLE(i2c, bq27x00_id);
if (enable) {
if (cm->emergency_stop)
return -EAGAIN;
- err = regulator_bulk_enable(desc->num_charger_regulators,
- desc->charger_regulators);
+ for (i = 0 ; i < desc->num_charger_regulators ; i++)
+ regulator_enable(desc->charger_regulators[i].consumer);
} else {
/*
* Abnormal battery state - Stop charging forcibly,
* even if charger was enabled at the other places
*/
- err = regulator_bulk_disable(desc->num_charger_regulators,
- desc->charger_regulators);
-
for (i = 0; i < desc->num_charger_regulators; i++) {
if (regulator_is_enabled(
desc->charger_regulators[i].consumer)) {
desc->charger_regulators[i].consumer);
dev_warn(cm->dev,
"Disable regulator(%s) forcibly.\n",
- desc->charger_regulators[i].supply);
+ desc->charger_regulators[i].regulator_name);
}
}
}
}
EXPORT_SYMBOL_GPL(setup_charger_manager);
+/**
+ * charger_extcon_work - enable/diable charger according to the state
+ * of charger cable
+ *
+ * @work: work_struct of the function charger_extcon_work.
+ */
+static void charger_extcon_work(struct work_struct *work)
+{
+ struct charger_cable *cable =
+ container_of(work, struct charger_cable, wq);
+ int ret;
+
+ if (cable->attached && cable->min_uA != 0 && cable->max_uA != 0) {
+ ret = regulator_set_current_limit(cable->charger->consumer,
+ cable->min_uA, cable->max_uA);
+ if (ret < 0) {
+ pr_err("Cannot set current limit of %s (%s)\n",
+ cable->charger->regulator_name, cable->name);
+ return;
+ }
+
+ pr_info("Set current limit of %s : %duA ~ %duA\n",
+ cable->charger->regulator_name,
+ cable->min_uA, cable->max_uA);
+ }
+
+ try_charger_enable(cable->cm, cable->attached);
+}
+
+/**
+ * charger_extcon_notifier - receive the state of charger cable
+ * when registered cable is attached or detached.
+ *
+ * @self: the notifier block of the charger_extcon_notifier.
+ * @event: the cable state.
+ * @ptr: the data pointer of notifier block.
+ */
+static int charger_extcon_notifier(struct notifier_block *self,
+ unsigned long event, void *ptr)
+{
+ struct charger_cable *cable =
+ container_of(self, struct charger_cable, nb);
+
+ cable->attached = event;
+ schedule_work(&cable->wq);
+
+ return NOTIFY_DONE;
+}
+
+/**
+ * charger_extcon_init - register external connector to use it
+ * as the charger cable
+ *
+ * @cm: the Charger Manager representing the battery.
+ * @cable: the Charger cable representing the external connector.
+ */
+static int charger_extcon_init(struct charger_manager *cm,
+ struct charger_cable *cable)
+{
+ int ret = 0;
+
+ /*
+ * Charger manager use Extcon framework to identify
+ * the charger cable among various external connector
+ * cable (e.g., TA, USB, MHL, Dock).
+ */
+ INIT_WORK(&cable->wq, charger_extcon_work);
+ cable->nb.notifier_call = charger_extcon_notifier;
+ ret = extcon_register_interest(&cable->extcon_dev,
+ cable->extcon_name, cable->name, &cable->nb);
+ if (ret < 0) {
+ pr_info("Cannot register extcon_dev for %s(cable: %s).\n",
+ cable->extcon_name,
+ cable->name);
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
static int charger_manager_probe(struct platform_device *pdev)
{
struct charger_desc *desc = dev_get_platdata(&pdev->dev);
struct charger_manager *cm;
int ret = 0, i = 0;
+ int j = 0;
union power_supply_propval val;
if (g_desc && !rtc_dev && g_desc->rtc_name) {
goto err_register;
}
- ret = regulator_bulk_get(&pdev->dev, desc->num_charger_regulators,
- desc->charger_regulators);
- if (ret) {
- dev_err(&pdev->dev, "Cannot get charger regulators.\n");
- goto err_bulk_get;
+ for (i = 0 ; i < desc->num_charger_regulators ; i++) {
+ struct charger_regulator *charger
+ = &desc->charger_regulators[i];
+
+ charger->consumer = regulator_get(&pdev->dev,
+ charger->regulator_name);
+ if (charger->consumer == NULL) {
+ dev_err(&pdev->dev, "Cannot find charger(%s)n",
+ charger->regulator_name);
+ ret = -EINVAL;
+ goto err_chg_get;
+ }
+
+ for (j = 0 ; j < charger->num_cables ; j++) {
+ struct charger_cable *cable = &charger->cables[j];
+
+ ret = charger_extcon_init(cm, cable);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Cannot find charger(%s)n",
+ charger->regulator_name);
+ goto err_extcon;
+ }
+ cable->charger = charger;
+ cable->cm = cm;
+ }
}
ret = try_charger_enable(cm, true);
return 0;
err_chg_enable:
- regulator_bulk_free(desc->num_charger_regulators,
- desc->charger_regulators);
-err_bulk_get:
+err_extcon:
+ for (i = 0 ; i < desc->num_charger_regulators ; i++) {
+ struct charger_regulator *charger
+ = &desc->charger_regulators[i];
+ for (j = 0 ; j < charger->num_cables ; j++) {
+ struct charger_cable *cable = &charger->cables[j];
+ extcon_unregister_interest(&cable->extcon_dev);
+ }
+ }
+err_chg_get:
+ for (i = 0 ; i < desc->num_charger_regulators ; i++)
+ regulator_put(desc->charger_regulators[i].consumer);
+
power_supply_unregister(&cm->charger_psy);
err_register:
kfree(cm->charger_psy.properties);
{
struct charger_manager *cm = platform_get_drvdata(pdev);
struct charger_desc *desc = cm->desc;
+ int i = 0;
+ int j = 0;
/* Remove from the list */
mutex_lock(&cm_list_mtx);
if (delayed_work_pending(&cm_monitor_work))
cancel_delayed_work_sync(&cm_monitor_work);
- regulator_bulk_free(desc->num_charger_regulators,
- desc->charger_regulators);
+ for (i = 0 ; i < desc->num_charger_regulators ; i++) {
+ struct charger_regulator *charger
+ = &desc->charger_regulators[i];
+ for (j = 0 ; j < charger->num_cables ; j++) {
+ struct charger_cable *cable = &charger->cables[j];
+ extcon_unregister_interest(&cable->extcon_dev);
+ }
+ }
+
+ for (i = 0 ; i < desc->num_charger_regulators ; i++)
+ regulator_put(desc->charger_regulators[i].consumer);
+
power_supply_unregister(&cm->charger_psy);
try_charger_enable(cm, false);
return w1_ds2781_io(dev_info->w1_dev, buf, addr, count, io);
}
-int w1_ds2781_read(struct ds2781_device_info *dev_info, char *buf,
+static int w1_ds2781_read(struct ds2781_device_info *dev_info, char *buf,
int addr, size_t count)
{
return ds2781_battery_io(dev_info, buf, addr, count, 0);
switch (psp) {
case POWER_SUPPLY_PROP_ONLINE:
- val->intval = gpio_get_value(pdata->gpio);
+ val->intval = gpio_get_value_cansleep(pdata->gpio);
val->intval ^= pdata->gpio_active_low;
break;
default:
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/power_supply.h>
-#include <linux/lp8727.h>
+#include <linux/platform_data/lp8727.h>
#define DEBOUNCE_MSEC 270
POWER_SUPPLY_PROP_VOLTAGE_OCV,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_CHARGE_FULL,
+ POWER_SUPPLY_PROP_CHARGE_COUNTER,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CURRENT_AVG,
if (ret < 0)
return ret;
+ val->intval = ret * 1000 / 2;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_COUNTER:
+ ret = max17042_read_reg(chip->client, MAX17042_QH);
+ if (ret < 0)
+ return ret;
+
val->intval = ret * 1000 / 2;
break;
case POWER_SUPPLY_PROP_TEMP:
case POWER_SUPPLY_TECHNOLOGY_LiFe:
switch (mfr) {
- case 1: /* Gold Peak */
- val->intval = 2800000;
- break;
+ case 1: /* Gold Peak, fall through */
case 2: /* BYD */
- val->intval = 3100000;
+ val->intval = 2800000;
break;
default:
return -EIO;
return 0;
}
+static int olpc_bat_get_voltage_max_design(union power_supply_propval *val)
+{
+ uint8_t ec_byte;
+ union power_supply_propval tech;
+ int mfr;
+ int ret;
+
+ ret = olpc_bat_get_tech(&tech);
+ if (ret)
+ return ret;
+
+ ec_byte = BAT_ADDR_MFR_TYPE;
+ ret = olpc_ec_cmd(EC_BAT_EEPROM, &ec_byte, 1, &ec_byte, 1);
+ if (ret)
+ return ret;
+
+ mfr = ec_byte >> 4;
+
+ switch (tech.intval) {
+ case POWER_SUPPLY_TECHNOLOGY_NiMH:
+ switch (mfr) {
+ case 1: /* Gold Peak */
+ val->intval = 6000000;
+ break;
+ default:
+ return -EIO;
+ }
+ break;
+
+ case POWER_SUPPLY_TECHNOLOGY_LiFe:
+ switch (mfr) {
+ case 1: /* Gold Peak */
+ val->intval = 6400000;
+ break;
+ case 2: /* BYD */
+ val->intval = 6500000;
+ break;
+ default:
+ return -EIO;
+ }
+ break;
+
+ default:
+ return -EIO;
+ }
+
+ return ret;
+}
+
/*********************************************************************
* Battery properties
*********************************************************************/
sprintf(bat_serial, "%016llx", (long long)be64_to_cpu(ser_buf));
val->strval = bat_serial;
break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+ ret = olpc_bat_get_voltage_max_design(val);
+ if (ret)
+ return ret;
+ break;
default:
ret = -EINVAL;
break;
POWER_SUPPLY_PROP_MANUFACTURER,
POWER_SUPPLY_PROP_SERIAL_NUMBER,
POWER_SUPPLY_PROP_CHARGE_COUNTER,
+ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
};
/* XO-1.5 does not have ambient temperature property */
POWER_SUPPLY_PROP_MANUFACTURER,
POWER_SUPPLY_PROP_SERIAL_NUMBER,
POWER_SUPPLY_PROP_CHARGE_COUNTER,
+ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
};
/* EEPROM reading goes completely around the power_supply API, sadly */
regulator_set_current_limit(ac_draw, max_uA, max_uA);
if (!regulator_enabled) {
dev_dbg(dev, "charger on (AC)\n");
- regulator_enable(ac_draw);
+ WARN_ON(regulator_enable(ac_draw));
regulator_enabled = 1;
}
} else {
if (regulator_enabled) {
dev_dbg(dev, "charger off\n");
- regulator_disable(ac_draw);
+ WARN_ON(regulator_disable(ac_draw));
regulator_enabled = 0;
}
}
#include <linux/device.h>
#include <linux/err.h>
#include <linux/power_supply.h>
+#include <linux/thermal.h>
#include "power_supply.h"
/* exported for the APM Power driver, APM emulation */
kfree(dev);
}
+#ifdef CONFIG_THERMAL
+static int power_supply_read_temp(struct thermal_zone_device *tzd,
+ unsigned long *temp)
+{
+ struct power_supply *psy;
+ union power_supply_propval val;
+ int ret;
+
+ WARN_ON(tzd == NULL);
+ psy = tzd->devdata;
+ ret = psy->get_property(psy, POWER_SUPPLY_PROP_TEMP, &val);
+
+ /* Convert tenths of degree Celsius to milli degree Celsius. */
+ if (!ret)
+ *temp = val.intval * 100;
+
+ return ret;
+}
+
+static struct thermal_zone_device_ops psy_tzd_ops = {
+ .get_temp = power_supply_read_temp,
+};
+
+static int psy_register_thermal(struct power_supply *psy)
+{
+ int i;
+
+ /* Register battery zone device psy reports temperature */
+ for (i = 0; i < psy->num_properties; i++) {
+ if (psy->properties[i] == POWER_SUPPLY_PROP_TEMP) {
+ psy->tzd = thermal_zone_device_register(psy->name, 0, 0,
+ psy, &psy_tzd_ops, 0, 0, 0, 0);
+ if (IS_ERR(psy->tzd))
+ return PTR_ERR(psy->tzd);
+ break;
+ }
+ }
+ return 0;
+}
+
+static void psy_unregister_thermal(struct power_supply *psy)
+{
+ if (IS_ERR_OR_NULL(psy->tzd))
+ return;
+ thermal_zone_device_unregister(psy->tzd);
+}
+#else
+static int psy_register_thermal(struct power_supply *psy)
+{
+ return 0;
+}
+
+static void psy_unregister_thermal(struct power_supply *psy)
+{
+}
+#endif
+
int power_supply_register(struct device *parent, struct power_supply *psy)
{
struct device *dev;
if (rc)
goto device_add_failed;
+ rc = psy_register_thermal(psy);
+ if (rc)
+ goto register_thermal_failed;
+
rc = power_supply_create_triggers(psy);
if (rc)
goto create_triggers_failed;
goto success;
create_triggers_failed:
+ psy_unregister_thermal(psy);
+register_thermal_failed:
device_del(dev);
kobject_set_name_failed:
device_add_failed:
cancel_work_sync(&psy->changed_work);
sysfs_remove_link(&psy->dev->kobj, "powers");
power_supply_remove_triggers(psy);
+ psy_unregister_thermal(psy);
device_unregister(psy->dev);
}
EXPORT_SYMBOL_GPL(power_supply_unregister);
POWER_SUPPLY_ATTR(charge_now),
POWER_SUPPLY_ATTR(charge_avg),
POWER_SUPPLY_ATTR(charge_counter),
+ POWER_SUPPLY_ATTR(constant_charge_current),
+ POWER_SUPPLY_ATTR(constant_charge_voltage),
POWER_SUPPLY_ATTR(energy_full_design),
POWER_SUPPLY_ATTR(energy_empty_design),
POWER_SUPPLY_ATTR(energy_full),
POWER_SUPPLY_ATTR(energy_now),
POWER_SUPPLY_ATTR(energy_avg),
POWER_SUPPLY_ATTR(capacity),
+ POWER_SUPPLY_ATTR(capacity_alert_min),
+ POWER_SUPPLY_ATTR(capacity_alert_max),
POWER_SUPPLY_ATTR(capacity_level),
POWER_SUPPLY_ATTR(temp),
+ POWER_SUPPLY_ATTR(temp_alert_min),
+ POWER_SUPPLY_ATTR(temp_alert_max),
POWER_SUPPLY_ATTR(temp_ambient),
+ POWER_SUPPLY_ATTR(temp_ambient_alert_min),
+ POWER_SUPPLY_ATTR(temp_ambient_alert_max),
POWER_SUPPLY_ATTR(time_to_empty_now),
POWER_SUPPLY_ATTR(time_to_empty_avg),
POWER_SUPPLY_ATTR(time_to_full_now),
case POWER_SUPPLY_PROP_TECHNOLOGY:
val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
- break;
+ goto done; /* don't trigger power_supply_changed()! */
case POWER_SUPPLY_PROP_ENERGY_NOW:
case POWER_SUPPLY_PROP_ENERGY_FULL:
1200000,
};
+/* Convert register value to current using lookup table */
+static int hw_to_current(const unsigned int *tbl, size_t size, unsigned int val)
+{
+ if (val >= size)
+ return -EINVAL;
+ return tbl[val];
+}
+
/* Convert current to register value using lookup table */
static int current_to_hw(const unsigned int *tbl, size_t size, unsigned int val)
{
return ret;
}
+/*
+ * Returns the constant charge current programmed
+ * into the charger in uA.
+ */
+static int get_const_charge_current(struct smb347_charger *smb)
+{
+ int ret, intval;
+ unsigned int v;
+
+ if (!smb347_is_ps_online(smb))
+ return -ENODATA;
+
+ ret = regmap_read(smb->regmap, STAT_B, &v);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * The current value is composition of FCC and PCC values
+ * and we can detect which table to use from bit 5.
+ */
+ if (v & 0x20) {
+ intval = hw_to_current(fcc_tbl, ARRAY_SIZE(fcc_tbl), v & 7);
+ } else {
+ v >>= 3;
+ intval = hw_to_current(pcc_tbl, ARRAY_SIZE(pcc_tbl), v & 7);
+ }
+
+ return intval;
+}
+
+/*
+ * Returns the constant charge voltage programmed
+ * into the charger in uV.
+ */
+static int get_const_charge_voltage(struct smb347_charger *smb)
+{
+ int ret, intval;
+ unsigned int v;
+
+ if (!smb347_is_ps_online(smb))
+ return -ENODATA;
+
+ ret = regmap_read(smb->regmap, STAT_A, &v);
+ if (ret < 0)
+ return ret;
+
+ v &= STAT_A_FLOAT_VOLTAGE_MASK;
+ if (v > 0x3d)
+ v = 0x3d;
+
+ intval = 3500000 + v * 20000;
+
+ return intval;
+}
+
static int smb347_mains_get_property(struct power_supply *psy,
enum power_supply_property prop,
union power_supply_propval *val)
{
struct smb347_charger *smb =
container_of(psy, struct smb347_charger, mains);
+ int ret;
- if (prop == POWER_SUPPLY_PROP_ONLINE) {
+ switch (prop) {
+ case POWER_SUPPLY_PROP_ONLINE:
val->intval = smb->mains_online;
- return 0;
+ break;
+
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
+ ret = get_const_charge_voltage(smb);
+ if (ret < 0)
+ return ret;
+ else
+ val->intval = ret;
+ break;
+
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+ ret = get_const_charge_current(smb);
+ if (ret < 0)
+ return ret;
+ else
+ val->intval = ret;
+ break;
+
+ default:
+ return -EINVAL;
}
- return -EINVAL;
+
+ return 0;
}
static enum power_supply_property smb347_mains_properties[] = {
POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
};
static int smb347_usb_get_property(struct power_supply *psy,
{
struct smb347_charger *smb =
container_of(psy, struct smb347_charger, usb);
+ int ret;
- if (prop == POWER_SUPPLY_PROP_ONLINE) {
+ switch (prop) {
+ case POWER_SUPPLY_PROP_ONLINE:
val->intval = smb->usb_online;
- return 0;
+ break;
+
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
+ ret = get_const_charge_voltage(smb);
+ if (ret < 0)
+ return ret;
+ else
+ val->intval = ret;
+ break;
+
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+ ret = get_const_charge_current(smb);
+ if (ret < 0)
+ return ret;
+ else
+ val->intval = ret;
+ break;
+
+ default:
+ return -EINVAL;
}
- return -EINVAL;
+
+ return 0;
}
static enum power_supply_property smb347_usb_properties[] = {
POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
};
static int smb347_battery_get_property(struct power_supply *psy,
#include <linux/vermagic.h>
static int ac_online = 1;
+static int usb_online = 1;
static int battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
static int battery_health = POWER_SUPPLY_HEALTH_GOOD;
static int battery_present = 1; /* true */
static int battery_technology = POWER_SUPPLY_TECHNOLOGY_LION;
static int battery_capacity = 50;
+static int battery_voltage = 3300;
static int test_power_get_ac_property(struct power_supply *psy,
enum power_supply_property psp,
return 0;
}
+static int test_power_get_usb_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = usb_online;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
static int test_power_get_battery_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
val->intval = 3600;
break;
+ case POWER_SUPPLY_PROP_TEMP:
+ val->intval = 26;
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ val->intval = battery_voltage;
+ break;
default:
pr_info("%s: some properties deliberately report errors.\n",
__func__);
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER,
POWER_SUPPLY_PROP_SERIAL_NUMBER,
+ POWER_SUPPLY_PROP_TEMP,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
};
static char *test_power_ac_supplied_to[] = {
.properties = test_power_battery_props,
.num_properties = ARRAY_SIZE(test_power_battery_props),
.get_property = test_power_get_battery_property,
+ }, {
+ .name = "test_usb",
+ .type = POWER_SUPPLY_TYPE_USB,
+ .supplied_to = test_power_ac_supplied_to,
+ .num_supplicants = ARRAY_SIZE(test_power_ac_supplied_to),
+ .properties = test_power_ac_props,
+ .num_properties = ARRAY_SIZE(test_power_ac_props),
+ .get_property = test_power_get_usb_property,
},
};
/* Let's see how we handle changes... */
ac_online = 0;
+ usb_online = 0;
battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++)
power_supply_changed(&test_power_supplies[i]);
return strlen(buffer);
}
+static int param_set_usb_online(const char *key, const struct kernel_param *kp)
+{
+ usb_online = map_get_value(map_ac_online, key, usb_online);
+ power_supply_changed(&test_power_supplies[2]);
+ return 0;
+}
+
+static int param_get_usb_online(char *buffer, const struct kernel_param *kp)
+{
+ strcpy(buffer, map_get_key(map_ac_online, usb_online, "unknown"));
+ return strlen(buffer);
+}
+
static int param_set_battery_status(const char *key,
const struct kernel_param *kp)
{
#define param_get_battery_capacity param_get_int
+static int param_set_battery_voltage(const char *key,
+ const struct kernel_param *kp)
+{
+ int tmp;
+
+ if (1 != sscanf(key, "%d", &tmp))
+ return -EINVAL;
+
+ battery_voltage = tmp;
+ power_supply_changed(&test_power_supplies[1]);
+ return 0;
+}
+#define param_get_battery_voltage param_get_int
static struct kernel_param_ops param_ops_ac_online = {
.set = param_set_ac_online,
.get = param_get_ac_online,
};
+static struct kernel_param_ops param_ops_usb_online = {
+ .set = param_set_usb_online,
+ .get = param_get_usb_online,
+};
+
static struct kernel_param_ops param_ops_battery_status = {
.set = param_set_battery_status,
.get = param_get_battery_status,
.get = param_get_battery_capacity,
};
+static struct kernel_param_ops param_ops_battery_voltage = {
+ .set = param_set_battery_voltage,
+ .get = param_get_battery_voltage,
+};
#define param_check_ac_online(name, p) __param_check(name, p, void);
+#define param_check_usb_online(name, p) __param_check(name, p, void);
#define param_check_battery_status(name, p) __param_check(name, p, void);
#define param_check_battery_present(name, p) __param_check(name, p, void);
#define param_check_battery_technology(name, p) __param_check(name, p, void);
#define param_check_battery_health(name, p) __param_check(name, p, void);
#define param_check_battery_capacity(name, p) __param_check(name, p, void);
+#define param_check_battery_voltage(name, p) __param_check(name, p, void);
module_param(ac_online, ac_online, 0644);
MODULE_PARM_DESC(ac_online, "AC charging state <on|off>");
+module_param(usb_online, usb_online, 0644);
+MODULE_PARM_DESC(usb_online, "USB charging state <on|off>");
+
module_param(battery_status, battery_status, 0644);
MODULE_PARM_DESC(battery_status,
"battery status <charging|discharging|not-charging|full>");
module_param(battery_capacity, battery_capacity, 0644);
MODULE_PARM_DESC(battery_capacity, "battery capacity (percentage)");
+module_param(battery_voltage, battery_voltage, 0644);
+MODULE_PARM_DESC(battery_voltage, "battery voltage (millivolts)");
MODULE_DESCRIPTION("Power supply driver for testing");
MODULE_AUTHOR("Anton Vorontsov <cbouatmailru@gmail.com>");
#include <linux/power_supply.h>
#include <linux/notifier.h>
#include <linux/usb/otg.h>
+#include <linux/regulator/machine.h>
#define TWL4030_BCIMSTATEC 0x02
#define TWL4030_BCIICHG 0x08
#define TWL4030_BCIVBUS 0x0c
#define TWL4030_BCIMFSTS4 0x10
#define TWL4030_BCICTL1 0x23
+#define TWL4030_BB_CFG 0x12
#define TWL4030_BCIAUTOWEN BIT(5)
#define TWL4030_CONFIG_DONE BIT(4)
#define TWL4030_USBFASTMCHG BIT(2)
#define TWL4030_STS_VBUS BIT(7)
#define TWL4030_STS_USB_ID BIT(2)
+#define TWL4030_BBCHEN BIT(4)
+#define TWL4030_BBSEL_MASK 0b1100
+#define TWL4030_BBSEL_2V5 0b0000
+#define TWL4030_BBSEL_3V0 0b0100
+#define TWL4030_BBSEL_3V1 0b1000
+#define TWL4030_BBSEL_3V2 0b1100
+#define TWL4030_BBISEL_MASK 0b11
+#define TWL4030_BBISEL_25uA 0b00
+#define TWL4030_BBISEL_150uA 0b01
+#define TWL4030_BBISEL_500uA 0b10
+#define TWL4030_BBISEL_1000uA 0b11
/* BCI interrupts */
#define TWL4030_WOVF BIT(0) /* Watchdog overflow */
struct work_struct work;
int irq_chg;
int irq_bci;
+ struct regulator *usb_reg;
+ int usb_enabled;
unsigned long event;
};
static int twl4030_clear_set_boot_bci(u8 clear, u8 set)
{
- return twl4030_clear_set(TWL4030_MODULE_PM_MASTER, 0,
+ return twl4030_clear_set(TWL4030_MODULE_PM_MASTER, clear,
TWL4030_CONFIG_DONE | TWL4030_BCIAUTOWEN | set,
TWL4030_PM_MASTER_BOOT_BCI);
}
}
/*
- * Enable/Disable USB Charge funtionality.
+ * Enable/Disable USB Charge functionality.
*/
static int twl4030_charger_enable_usb(struct twl4030_bci *bci, bool enable)
{
int ret;
if (enable) {
- /* Check for USB charger conneted */
+ /* Check for USB charger connected */
if (!twl4030_bci_have_vbus(bci))
return -ENODEV;
return -EACCES;
}
+ /* Need to keep regulator on */
+ if (!bci->usb_enabled) {
+ regulator_enable(bci->usb_reg);
+ bci->usb_enabled = 1;
+ }
+
/* forcing the field BCIAUTOUSB (BOOT_BCI[1]) to 1 */
ret = twl4030_clear_set_boot_bci(0, TWL4030_BCIAUTOUSB);
if (ret < 0)
TWL4030_USBFASTMCHG, TWL4030_BCIMFSTS4);
} else {
ret = twl4030_clear_set_boot_bci(TWL4030_BCIAUTOUSB, 0);
+ if (bci->usb_enabled) {
+ regulator_disable(bci->usb_reg);
+ bci->usb_enabled = 0;
+ }
}
return ret;
return ret;
}
+/*
+ * Enable/Disable charging of Backup Battery.
+ */
+static int twl4030_charger_enable_backup(int uvolt, int uamp)
+{
+ int ret;
+ u8 flags;
+
+ if (uvolt < 2500000 ||
+ uamp < 25) {
+ /* disable charging of backup battery */
+ ret = twl4030_clear_set(TWL4030_MODULE_PM_RECEIVER,
+ TWL4030_BBCHEN, 0, TWL4030_BB_CFG);
+ return ret;
+ }
+
+ flags = TWL4030_BBCHEN;
+ if (uvolt >= 3200000)
+ flags |= TWL4030_BBSEL_3V2;
+ else if (uvolt >= 3100000)
+ flags |= TWL4030_BBSEL_3V1;
+ else if (uvolt >= 3000000)
+ flags |= TWL4030_BBSEL_3V0;
+ else
+ flags |= TWL4030_BBSEL_2V5;
+
+ if (uamp >= 1000)
+ flags |= TWL4030_BBISEL_1000uA;
+ else if (uamp >= 500)
+ flags |= TWL4030_BBISEL_500uA;
+ else if (uamp >= 150)
+ flags |= TWL4030_BBISEL_150uA;
+ else
+ flags |= TWL4030_BBISEL_25uA;
+
+ ret = twl4030_clear_set(TWL4030_MODULE_PM_RECEIVER,
+ TWL4030_BBSEL_MASK | TWL4030_BBISEL_MASK,
+ flags,
+ TWL4030_BB_CFG);
+
+ return ret;
+}
+
/*
* TWL4030 CHG_PRES (AC charger presence) events
*/
static int __init twl4030_bci_probe(struct platform_device *pdev)
{
struct twl4030_bci *bci;
+ struct twl4030_bci_platform_data *pdata = pdev->dev.platform_data;
int ret;
u32 reg;
bci->usb.num_properties = ARRAY_SIZE(twl4030_charger_props);
bci->usb.get_property = twl4030_bci_get_property;
+ bci->usb_reg = regulator_get(bci->dev, "bci3v1");
+
ret = power_supply_register(&pdev->dev, &bci->usb);
if (ret) {
dev_err(&pdev->dev, "failed to register usb: %d\n", ret);
twl4030_charger_enable_ac(true);
twl4030_charger_enable_usb(bci, true);
+ twl4030_charger_enable_backup(pdata->bb_uvolt,
+ pdata->bb_uamp);
return 0;
twl4030_charger_enable_ac(false);
twl4030_charger_enable_usb(bci, false);
+ twl4030_charger_enable_backup(0, 0);
/* mask interrupts */
twl_i2c_write_u8(TWL4030_MODULE_INTERRUPTS, 0xff,
* longer needed. The passive cooling formula uses tc1 and tc2 as described in
* section 11.1.5.1 of the ACPI specification 3.0.
*/
-struct thermal_zone_device *thermal_zone_device_register(char *type,
+struct thermal_zone_device *thermal_zone_device_register(const char *type,
int trips, int mask, void *devdata,
const struct thermal_zone_device_ops *ops,
int tc1, int tc2, int passive_delay, int polling_delay)
struct twl4030_bci_platform_data {
int *battery_tmp_tbl;
unsigned int tblsize;
+ int bb_uvolt; /* voltage to charge backup battery */
+ int bb_uamp; /* current for backup battery charging */
};
/* TWL4030_GPIO_MAX (18) GPIOs, with interrupts */
+++ /dev/null
-/*
- * LP8727 Micro/Mini USB IC with integrated charger
- *
- * Copyright (C) 2011 Texas Instruments
- * Copyright (C) 2011 National Semiconductor
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef _LP8727_H
-#define _LP8727_H
-
-enum lp8727_eoc_level {
- EOC_5P,
- EOC_10P,
- EOC_16P,
- EOC_20P,
- EOC_25P,
- EOC_33P,
- EOC_50P,
-};
-
-enum lp8727_ichg {
- ICHG_90mA,
- ICHG_100mA,
- ICHG_400mA,
- ICHG_450mA,
- ICHG_500mA,
- ICHG_600mA,
- ICHG_700mA,
- ICHG_800mA,
- ICHG_900mA,
- ICHG_1000mA,
-};
-
-/**
- * struct lp8727_chg_param
- * @eoc_level : end of charge level setting
- * @ichg : charging current
- */
-struct lp8727_chg_param {
- enum lp8727_eoc_level eoc_level;
- enum lp8727_ichg ichg;
-};
-
-/**
- * struct lp8727_platform_data
- * @get_batt_present : check battery status - exists or not
- * @get_batt_level : get battery voltage (mV)
- * @get_batt_capacity : get battery capacity (%)
- * @get_batt_temp : get battery temperature
- * @ac, @usb : charging parameters each charger type
- */
-struct lp8727_platform_data {
- u8 (*get_batt_present)(void);
- u16 (*get_batt_level)(void);
- u8 (*get_batt_capacity)(void);
- u8 (*get_batt_temp)(void);
- struct lp8727_chg_param ac;
- struct lp8727_chg_param usb;
-};
-
-#endif
--- /dev/null
+/*
+ * LP8727 Micro/Mini USB IC with integrated charger
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Copyright (C) 2011 National Semiconductor
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _LP8727_H
+#define _LP8727_H
+
+enum lp8727_eoc_level {
+ EOC_5P,
+ EOC_10P,
+ EOC_16P,
+ EOC_20P,
+ EOC_25P,
+ EOC_33P,
+ EOC_50P,
+};
+
+enum lp8727_ichg {
+ ICHG_90mA,
+ ICHG_100mA,
+ ICHG_400mA,
+ ICHG_450mA,
+ ICHG_500mA,
+ ICHG_600mA,
+ ICHG_700mA,
+ ICHG_800mA,
+ ICHG_900mA,
+ ICHG_1000mA,
+};
+
+/**
+ * struct lp8727_chg_param
+ * @eoc_level : end of charge level setting
+ * @ichg : charging current
+ */
+struct lp8727_chg_param {
+ enum lp8727_eoc_level eoc_level;
+ enum lp8727_ichg ichg;
+};
+
+/**
+ * struct lp8727_platform_data
+ * @get_batt_present : check battery status - exists or not
+ * @get_batt_level : get battery voltage (mV)
+ * @get_batt_capacity : get battery capacity (%)
+ * @get_batt_temp : get battery temperature
+ * @ac, @usb : charging parameters each charger type
+ */
+struct lp8727_platform_data {
+ u8 (*get_batt_present)(void);
+ u16 (*get_batt_level)(void);
+ u8 (*get_batt_capacity)(void);
+ u8 (*get_batt_temp)(void);
+ struct lp8727_chg_param ac;
+ struct lp8727_chg_param usb;
+};
+
+#endif
#define _CHARGER_MANAGER_H
#include <linux/power_supply.h>
+#include <linux/extcon.h>
enum data_source {
CM_BATTERY_PRESENT,
bool assume_timer_stops_in_suspend;
};
+/**
+ * struct charger_cable
+ * @extcon_name: the name of extcon device.
+ * @name: the name of charger cable(external connector).
+ * @extcon_dev: the extcon device.
+ * @wq: the workqueue to control charger according to the state of
+ * charger cable. If charger cable is attached, enable charger.
+ * But if charger cable is detached, disable charger.
+ * @nb: the notifier block to receive changed state from EXTCON
+ * (External Connector) when charger cable is attached/detached.
+ * @attached: the state of charger cable.
+ * true: the charger cable is attached
+ * false: the charger cable is detached
+ * @charger: the instance of struct charger_regulator.
+ * @cm: the Charger Manager representing the battery.
+ */
+struct charger_cable {
+ const char *extcon_name;
+ const char *name;
+
+ /* The charger-manager use Exton framework*/
+ struct extcon_specific_cable_nb extcon_dev;
+ struct work_struct wq;
+ struct notifier_block nb;
+
+ /* The state of charger cable */
+ bool attached;
+
+ struct charger_regulator *charger;
+
+ /*
+ * Set min/max current of regulator to protect over-current issue
+ * according to a kind of charger cable when cable is attached.
+ */
+ int min_uA;
+ int max_uA;
+
+ struct charger_manager *cm;
+};
+
+/**
+ * struct charger_regulator
+ * @regulator_name: the name of regulator for using charger.
+ * @consumer: the regulator consumer for the charger.
+ * @cables:
+ * the array of charger cables to enable/disable charger
+ * and set current limit according to constratint data of
+ * struct charger_cable if only charger cable included
+ * in the array of charger cables is attached/detached.
+ * @num_cables: the number of charger cables.
+ */
+struct charger_regulator {
+ /* The name of regulator for charging */
+ const char *regulator_name;
+ struct regulator *consumer;
+
+ /*
+ * Store constraint information related to current limit,
+ * each cable have different condition for charging.
+ */
+ struct charger_cable *cables;
+ int num_cables;
+};
+
/**
* struct charger_desc
* @psy_name: the name of power-supply-class for charger manager
char **psy_charger_stat;
int num_charger_regulators;
- struct regulator_bulk_data *charger_regulators;
+ struct charger_regulator *charger_regulators;
char *psy_fuel_gauge;
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_CHARGE_AVG,
POWER_SUPPLY_PROP_CHARGE_COUNTER,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN,
POWER_SUPPLY_PROP_ENERGY_FULL,
POWER_SUPPLY_PROP_ENERGY_NOW,
POWER_SUPPLY_PROP_ENERGY_AVG,
POWER_SUPPLY_PROP_CAPACITY, /* in percents! */
+ POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN, /* in percents! */
+ POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX, /* in percents! */
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
POWER_SUPPLY_PROP_TEMP,
+ POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
+ POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
POWER_SUPPLY_PROP_TEMP_AMBIENT,
+ POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN,
+ POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX,
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
/* private */
struct device *dev;
struct work_struct changed_work;
+#ifdef CONFIG_THERMAL
+ struct thermal_zone_device *tzd;
+#endif
#ifdef CONFIG_LEDS_TRIGGERS
struct led_trigger *charging_full_trig;
case POWER_SUPPLY_PROP_CHARGE_NOW:
case POWER_SUPPLY_PROP_CHARGE_AVG:
case POWER_SUPPLY_PROP_CHARGE_COUNTER:
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
case POWER_SUPPLY_PROP_CURRENT_MAX:
case POWER_SUPPLY_PROP_CURRENT_NOW:
case POWER_SUPPLY_PROP_CURRENT_AVG:
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
case POWER_SUPPLY_PROP_VOLTAGE_AVG:
case POWER_SUPPLY_PROP_VOLTAGE_OCV:
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
case POWER_SUPPLY_PROP_POWER_NOW:
return 1;
default:
};
#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
-struct thermal_zone_device *thermal_zone_device_register(char *, int, int,
+struct thermal_zone_device *thermal_zone_device_register(const char *, int, int,
void *, const struct thermal_zone_device_ops *, int tc1,
int tc2, int passive_freq, int polling_freq);
void thermal_zone_device_unregister(struct thermal_zone_device *);
projects / firefly-linux-kernel-4.4.55.git / commitdiff