Santosh Shilimkar <santosh.shilimkar@oracle.org>
Sascha Hauer <s.hauer@pengutronix.de>
S.Çağlar Onur <caglar@pardus.org.tr>
+Sebastian Reichel <sre@kernel.org> <sre@debian.org>
+Sebastian Reichel <sre@kernel.org> <sebastian.reichel@collabora.co.uk>
Shiraz Hashim <shiraz.linux.kernel@gmail.com> <shiraz.hashim@st.com>
Shuah Khan <shuah@kernel.org> <shuahkhan@gmail.com>
Shuah Khan <shuah@kernel.org> <shuah.khan@hp.com>
--- /dev/null
+AXP20x and AXP22x battery power supply
+
+Required Properties:
+ - compatible, one of:
+ "x-powers,axp209-battery-power-supply"
+ "x-powers,axp221-battery-power-supply"
+
+This node is a subnode of the axp20x/axp22x PMIC.
+
+The AXP20X and AXP22X can read the battery voltage, charge and discharge
+currents of the battery by reading ADC channels from the AXP20X/AXP22X
+ADC.
+
+Example:
+
+&axp209 {
+ battery_power_supply: battery-power-supply {
+ compatible = "x-powers,axp209-battery-power-supply";
+ }
+};
This driver can also be built as a module. If so, the module will be
called axp20x_ac_power.
+config BATTERY_AXP20X
+ tristate "X-Powers AXP20X battery driver"
+ depends on MFD_AXP20X
+ depends on AXP20X_ADC
+ depends on IIO
+ help
+ Say Y here to enable support for X-Powers AXP20X PMICs' battery power
+ supply.
+
+ This driver can also be built as a module. If so, the module will be
+ called axp20x_battery.
+
+config AXP20X_POWER
+ tristate "AXP20x power supply driver"
+ depends on MFD_AXP20X
+ depends on IIO
+ help
+ This driver provides support for the power supply features of
+ AXP20x PMIC.
+
config AXP288_CHARGER
tristate "X-Powers AXP288 Charger"
depends on MFD_AXP20X && EXTCON_AXP288
help
Say Y to enable support for Richtek RT9455 battery charger.
-config AXP20X_POWER
- tristate "AXP20x power supply driver"
- depends on MFD_AXP20X
- help
- This driver provides support for the power supply features of
- AXP20x PMIC.
-
endif # POWER_SUPPLY
obj-$(CONFIG_BATTERY_88PM860X) += 88pm860x_battery.o
obj-$(CONFIG_BATTERY_ACT8945A) += act8945a_charger.o
+obj-$(CONFIG_BATTERY_AXP20X) += axp20x_battery.o
obj-$(CONFIG_CHARGER_AXP20X) += axp20x_ac_power.o
obj-$(CONFIG_BATTERY_DS2760) += ds2760_battery.o
obj-$(CONFIG_BATTERY_DS2780) += ds2780_battery.o
BUS_PP_PRECHG_CURRENT_MASK, 0);
if (ret) {
dev_err(di->dev,
- "failed to setup usb power path prechage current\n");
+ "failed to setup usb power path precharge current\n");
goto out;
}
}
--- /dev/null
+/*
+ * Battery power supply driver for X-Powers AXP20X and AXP22X PMICs
+ *
+ * Copyright 2016 Free Electrons NextThing Co.
+ * Quentin Schulz <quentin.schulz@free-electrons.com>
+ *
+ * This driver is based on a previous upstreaming attempt by:
+ * Bruno Prémont <bonbons@linux-vserver.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/time.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/consumer.h>
+#include <linux/mfd/axp20x.h>
+
+#define AXP20X_PWR_STATUS_BAT_CHARGING BIT(2)
+
+#define AXP20X_PWR_OP_BATT_PRESENT BIT(5)
+#define AXP20X_PWR_OP_BATT_ACTIVATED BIT(3)
+
+#define AXP209_FG_PERCENT GENMASK(6, 0)
+#define AXP22X_FG_VALID BIT(7)
+
+#define AXP20X_CHRG_CTRL1_TGT_VOLT GENMASK(6, 5)
+#define AXP20X_CHRG_CTRL1_TGT_4_1V (0 << 5)
+#define AXP20X_CHRG_CTRL1_TGT_4_15V (1 << 5)
+#define AXP20X_CHRG_CTRL1_TGT_4_2V (2 << 5)
+#define AXP20X_CHRG_CTRL1_TGT_4_36V (3 << 5)
+
+#define AXP22X_CHRG_CTRL1_TGT_4_22V (1 << 5)
+#define AXP22X_CHRG_CTRL1_TGT_4_24V (3 << 5)
+
+#define AXP20X_CHRG_CTRL1_TGT_CURR GENMASK(3, 0)
+
+#define AXP20X_V_OFF_MASK GENMASK(2, 0)
+
+struct axp20x_batt_ps {
+ struct regmap *regmap;
+ struct power_supply *batt;
+ struct device *dev;
+ struct iio_channel *batt_chrg_i;
+ struct iio_channel *batt_dischrg_i;
+ struct iio_channel *batt_v;
+ u8 axp_id;
+};
+
+static int axp20x_battery_get_max_voltage(struct axp20x_batt_ps *axp20x_batt,
+ int *val)
+{
+ int ret, reg;
+
+ ret = regmap_read(axp20x_batt->regmap, AXP20X_CHRG_CTRL1, ®);
+ if (ret)
+ return ret;
+
+ switch (reg & AXP20X_CHRG_CTRL1_TGT_VOLT) {
+ case AXP20X_CHRG_CTRL1_TGT_4_1V:
+ *val = 4100000;
+ break;
+ case AXP20X_CHRG_CTRL1_TGT_4_15V:
+ *val = 4150000;
+ break;
+ case AXP20X_CHRG_CTRL1_TGT_4_2V:
+ *val = 4200000;
+ break;
+ case AXP20X_CHRG_CTRL1_TGT_4_36V:
+ *val = 4360000;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int axp22x_battery_get_max_voltage(struct axp20x_batt_ps *axp20x_batt,
+ int *val)
+{
+ int ret, reg;
+
+ ret = regmap_read(axp20x_batt->regmap, AXP20X_CHRG_CTRL1, ®);
+ if (ret)
+ return ret;
+
+ switch (reg & AXP20X_CHRG_CTRL1_TGT_VOLT) {
+ case AXP20X_CHRG_CTRL1_TGT_4_1V:
+ *val = 4100000;
+ break;
+ case AXP20X_CHRG_CTRL1_TGT_4_2V:
+ *val = 4200000;
+ break;
+ case AXP22X_CHRG_CTRL1_TGT_4_22V:
+ *val = 4220000;
+ break;
+ case AXP22X_CHRG_CTRL1_TGT_4_24V:
+ *val = 4240000;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void raw_to_constant_charge_current(struct axp20x_batt_ps *axp, int *val)
+{
+ if (axp->axp_id == AXP209_ID)
+ *val = *val * 100000 + 300000;
+ else
+ *val = *val * 150000 + 300000;
+}
+
+static int axp20x_get_constant_charge_current(struct axp20x_batt_ps *axp,
+ int *val)
+{
+ int ret;
+
+ ret = regmap_read(axp->regmap, AXP20X_CHRG_CTRL1, val);
+ if (ret)
+ return ret;
+
+ *val &= AXP20X_CHRG_CTRL1_TGT_CURR;
+
+ raw_to_constant_charge_current(axp, val);
+
+ return 0;
+}
+
+static int axp20x_battery_get_prop(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct axp20x_batt_ps *axp20x_batt = power_supply_get_drvdata(psy);
+ struct iio_channel *chan;
+ int ret = 0, reg, val1;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_PRESENT:
+ case POWER_SUPPLY_PROP_ONLINE:
+ ret = regmap_read(axp20x_batt->regmap, AXP20X_PWR_OP_MODE,
+ ®);
+ if (ret)
+ return ret;
+
+ val->intval = !!(reg & AXP20X_PWR_OP_BATT_PRESENT);
+ break;
+
+ case POWER_SUPPLY_PROP_STATUS:
+ ret = regmap_read(axp20x_batt->regmap, AXP20X_PWR_INPUT_STATUS,
+ ®);
+ if (ret)
+ return ret;
+
+ if (reg & AXP20X_PWR_STATUS_BAT_CHARGING) {
+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ return 0;
+ }
+
+ ret = iio_read_channel_processed(axp20x_batt->batt_dischrg_i,
+ &val1);
+ if (ret)
+ return ret;
+
+ if (val1) {
+ val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+ return 0;
+ }
+
+ ret = regmap_read(axp20x_batt->regmap, AXP20X_FG_RES, &val1);
+ if (ret)
+ return ret;
+
+ /*
+ * Fuel Gauge data takes 7 bits but the stored value seems to be
+ * directly the raw percentage without any scaling to 7 bits.
+ */
+ if ((val1 & AXP209_FG_PERCENT) == 100)
+ val->intval = POWER_SUPPLY_STATUS_FULL;
+ else
+ val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ break;
+
+ case POWER_SUPPLY_PROP_HEALTH:
+ ret = regmap_read(axp20x_batt->regmap, AXP20X_PWR_OP_MODE,
+ &val1);
+ if (ret)
+ return ret;
+
+ if (val1 & AXP20X_PWR_OP_BATT_ACTIVATED) {
+ val->intval = POWER_SUPPLY_HEALTH_DEAD;
+ return 0;
+ }
+
+ val->intval = POWER_SUPPLY_HEALTH_GOOD;
+ break;
+
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+ ret = axp20x_get_constant_charge_current(axp20x_batt,
+ &val->intval);
+ if (ret)
+ return ret;
+ break;
+
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
+ val->intval = AXP20X_CHRG_CTRL1_TGT_CURR;
+ raw_to_constant_charge_current(axp20x_batt, &val->intval);
+
+ break;
+
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ ret = regmap_read(axp20x_batt->regmap, AXP20X_PWR_INPUT_STATUS,
+ ®);
+ if (ret)
+ return ret;
+
+ if (reg & AXP20X_PWR_STATUS_BAT_CHARGING)
+ chan = axp20x_batt->batt_chrg_i;
+ else
+ chan = axp20x_batt->batt_dischrg_i;
+
+ ret = iio_read_channel_processed(chan, &val->intval);
+ if (ret)
+ return ret;
+
+ /* IIO framework gives mA but Power Supply framework gives uA */
+ val->intval *= 1000;
+ break;
+
+ case POWER_SUPPLY_PROP_CAPACITY:
+ /* When no battery is present, return capacity is 100% */
+ ret = regmap_read(axp20x_batt->regmap, AXP20X_PWR_OP_MODE,
+ ®);
+ if (ret)
+ return ret;
+
+ if (!(reg & AXP20X_PWR_OP_BATT_PRESENT)) {
+ val->intval = 100;
+ return 0;
+ }
+
+ ret = regmap_read(axp20x_batt->regmap, AXP20X_FG_RES, ®);
+ if (ret)
+ return ret;
+
+ if (axp20x_batt->axp_id == AXP221_ID &&
+ !(reg & AXP22X_FG_VALID))
+ return -EINVAL;
+
+ /*
+ * Fuel Gauge data takes 7 bits but the stored value seems to be
+ * directly the raw percentage without any scaling to 7 bits.
+ */
+ val->intval = reg & AXP209_FG_PERCENT;
+ break;
+
+ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+ if (axp20x_batt->axp_id == AXP209_ID)
+ return axp20x_battery_get_max_voltage(axp20x_batt,
+ &val->intval);
+ return axp22x_battery_get_max_voltage(axp20x_batt,
+ &val->intval);
+
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+ ret = regmap_read(axp20x_batt->regmap, AXP20X_V_OFF, ®);
+ if (ret)
+ return ret;
+
+ val->intval = 2600000 + 100000 * (reg & AXP20X_V_OFF_MASK);
+ break;
+
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ ret = iio_read_channel_processed(axp20x_batt->batt_v,
+ &val->intval);
+ if (ret)
+ return ret;
+
+ /* IIO framework gives mV but Power Supply framework gives uV */
+ val->intval *= 1000;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int axp20x_battery_set_max_voltage(struct axp20x_batt_ps *axp20x_batt,
+ int val)
+{
+ switch (val) {
+ case 4100000:
+ val = AXP20X_CHRG_CTRL1_TGT_4_1V;
+ break;
+
+ case 4150000:
+ if (axp20x_batt->axp_id == AXP221_ID)
+ return -EINVAL;
+
+ val = AXP20X_CHRG_CTRL1_TGT_4_15V;
+ break;
+
+ case 4200000:
+ val = AXP20X_CHRG_CTRL1_TGT_4_2V;
+ break;
+
+ default:
+ /*
+ * AXP20x max voltage can be set to 4.36V and AXP22X max voltage
+ * can be set to 4.22V and 4.24V, but these voltages are too
+ * high for Lithium based batteries (AXP PMICs are supposed to
+ * be used with these kinds of battery).
+ */
+ return -EINVAL;
+ }
+
+ return regmap_update_bits(axp20x_batt->regmap, AXP20X_CHRG_CTRL1,
+ AXP20X_CHRG_CTRL1_TGT_VOLT, val);
+}
+
+static int axp20x_set_constant_charge_current(struct axp20x_batt_ps *axp_batt,
+ int charge_current)
+{
+ if (axp_batt->axp_id == AXP209_ID)
+ charge_current = (charge_current - 300000) / 100000;
+ else
+ charge_current = (charge_current - 300000) / 150000;
+
+ if (charge_current > AXP20X_CHRG_CTRL1_TGT_CURR || charge_current < 0)
+ return -EINVAL;
+
+ return regmap_update_bits(axp_batt->regmap, AXP20X_CHRG_CTRL1,
+ AXP20X_CHRG_CTRL1_TGT_CURR, charge_current);
+}
+
+static int axp20x_set_voltage_min_design(struct axp20x_batt_ps *axp_batt,
+ int min_voltage)
+{
+ int val1 = (min_voltage - 2600000) / 100000;
+
+ if (val1 < 0 || val1 > AXP20X_V_OFF_MASK)
+ return -EINVAL;
+
+ return regmap_update_bits(axp_batt->regmap, AXP20X_V_OFF,
+ AXP20X_V_OFF_MASK, val1);
+}
+
+static int axp20x_battery_set_prop(struct power_supply *psy,
+ enum power_supply_property psp,
+ const union power_supply_propval *val)
+{
+ struct axp20x_batt_ps *axp20x_batt = power_supply_get_drvdata(psy);
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+ return axp20x_set_voltage_min_design(axp20x_batt, val->intval);
+
+ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+ return axp20x_battery_set_max_voltage(axp20x_batt, val->intval);
+
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+ return axp20x_set_constant_charge_current(axp20x_batt,
+ val->intval);
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static enum power_supply_property axp20x_battery_props[] = {
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
+ POWER_SUPPLY_PROP_HEALTH,
+ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+ POWER_SUPPLY_PROP_CAPACITY,
+};
+
+static int axp20x_battery_prop_writeable(struct power_supply *psy,
+ enum power_supply_property psp)
+{
+ return psp == POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN ||
+ psp == POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN ||
+ psp == POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT;
+}
+
+static const struct power_supply_desc axp20x_batt_ps_desc = {
+ .name = "axp20x-battery",
+ .type = POWER_SUPPLY_TYPE_BATTERY,
+ .properties = axp20x_battery_props,
+ .num_properties = ARRAY_SIZE(axp20x_battery_props),
+ .property_is_writeable = axp20x_battery_prop_writeable,
+ .get_property = axp20x_battery_get_prop,
+ .set_property = axp20x_battery_set_prop,
+};
+
+static const struct of_device_id axp20x_battery_ps_id[] = {
+ {
+ .compatible = "x-powers,axp209-battery-power-supply",
+ .data = (void *)AXP209_ID,
+ }, {
+ .compatible = "x-powers,axp221-battery-power-supply",
+ .data = (void *)AXP221_ID,
+ }, { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, axp20x_battery_ps_id);
+
+static int axp20x_power_probe(struct platform_device *pdev)
+{
+ struct axp20x_batt_ps *axp20x_batt;
+ struct power_supply_config psy_cfg = {};
+
+ if (!of_device_is_available(pdev->dev.of_node))
+ return -ENODEV;
+
+ axp20x_batt = devm_kzalloc(&pdev->dev, sizeof(*axp20x_batt),
+ GFP_KERNEL);
+ if (!axp20x_batt)
+ return -ENOMEM;
+
+ axp20x_batt->dev = &pdev->dev;
+
+ axp20x_batt->batt_v = devm_iio_channel_get(&pdev->dev, "batt_v");
+ if (IS_ERR(axp20x_batt->batt_v)) {
+ if (PTR_ERR(axp20x_batt->batt_v) == -ENODEV)
+ return -EPROBE_DEFER;
+ return PTR_ERR(axp20x_batt->batt_v);
+ }
+
+ axp20x_batt->batt_chrg_i = devm_iio_channel_get(&pdev->dev,
+ "batt_chrg_i");
+ if (IS_ERR(axp20x_batt->batt_chrg_i)) {
+ if (PTR_ERR(axp20x_batt->batt_chrg_i) == -ENODEV)
+ return -EPROBE_DEFER;
+ return PTR_ERR(axp20x_batt->batt_chrg_i);
+ }
+
+ axp20x_batt->batt_dischrg_i = devm_iio_channel_get(&pdev->dev,
+ "batt_dischrg_i");
+ if (IS_ERR(axp20x_batt->batt_dischrg_i)) {
+ if (PTR_ERR(axp20x_batt->batt_dischrg_i) == -ENODEV)
+ return -EPROBE_DEFER;
+ return PTR_ERR(axp20x_batt->batt_dischrg_i);
+ }
+
+ axp20x_batt->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ platform_set_drvdata(pdev, axp20x_batt);
+
+ psy_cfg.drv_data = axp20x_batt;
+ psy_cfg.of_node = pdev->dev.of_node;
+
+ axp20x_batt->axp_id = (uintptr_t)of_device_get_match_data(&pdev->dev);
+
+ axp20x_batt->batt = devm_power_supply_register(&pdev->dev,
+ &axp20x_batt_ps_desc,
+ &psy_cfg);
+ if (IS_ERR(axp20x_batt->batt)) {
+ dev_err(&pdev->dev, "failed to register power supply: %ld\n",
+ PTR_ERR(axp20x_batt->batt));
+ return PTR_ERR(axp20x_batt->batt);
+ }
+
+ return 0;
+}
+
+static struct platform_driver axp20x_batt_driver = {
+ .probe = axp20x_power_probe,
+ .driver = {
+ .name = "axp20x-battery-power-supply",
+ .of_match_table = axp20x_battery_ps_id,
+ },
+};
+
+module_platform_driver(axp20x_batt_driver);
+
+MODULE_DESCRIPTION("Battery power supply driver for AXP20X and AXP22X PMICs");
+MODULE_AUTHOR("Quentin Schulz <quentin.schulz@free-electrons.com>");
+MODULE_LICENSE("GPL");
int ret, limit = 100;
u8 v;
+ if (device_property_read_bool(bdi->dev, "disable-reset"))
+ return 0;
+
/* Reset the registers */
ret = bq24190_write_mask(bdi, BQ24190_REG_POC,
BQ24190_REG_POC_RESET_MASK,
v = bdi->f_reg;
mutex_unlock(&bdi->f_reg_lock);
- if (v & BQ24190_REG_F_BOOST_FAULT_MASK) {
- /*
- * This could be over-current or over-voltage but there's
- * no way to tell which. Return 'OVERVOLTAGE' since there
- * isn't an 'OVERCURRENT' value defined that we can return
- * even if it was over-current.
- */
- health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
- } else {
- v &= BQ24190_REG_F_CHRG_FAULT_MASK;
- v >>= BQ24190_REG_F_CHRG_FAULT_SHIFT;
-
- switch (v) {
- case 0x0: /* Normal */
- health = POWER_SUPPLY_HEALTH_GOOD;
+ if (v & BQ24190_REG_F_NTC_FAULT_MASK) {
+ switch (v >> BQ24190_REG_F_NTC_FAULT_SHIFT & 0x7) {
+ case 0x1: /* TS1 Cold */
+ case 0x3: /* TS2 Cold */
+ case 0x5: /* Both Cold */
+ health = POWER_SUPPLY_HEALTH_COLD;
+ break;
+ case 0x2: /* TS1 Hot */
+ case 0x4: /* TS2 Hot */
+ case 0x6: /* Both Hot */
+ health = POWER_SUPPLY_HEALTH_OVERHEAT;
break;
+ default:
+ health = POWER_SUPPLY_HEALTH_UNKNOWN;
+ }
+ } else if (v & BQ24190_REG_F_BAT_FAULT_MASK) {
+ health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+ } else if (v & BQ24190_REG_F_CHRG_FAULT_MASK) {
+ switch (v >> BQ24190_REG_F_CHRG_FAULT_SHIFT & 0x3) {
case 0x1: /* Input Fault (VBUS OVP or VBAT<VBUS<3.8V) */
/*
* This could be over-voltage or under-voltage
case 0x3: /* Charge Safety Timer Expiration */
health = POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE;
break;
- default:
- health = POWER_SUPPLY_HEALTH_UNKNOWN;
+ default: /* prevent compiler warning */
+ health = -1;
}
+ } else if (v & BQ24190_REG_F_BOOST_FAULT_MASK) {
+ /*
+ * This could be over-current or over-voltage but there's
+ * no way to tell which. Return 'OVERVOLTAGE' since there
+ * isn't an 'OVERCURRENT' value defined that we can return
+ * even if it was over-current.
+ */
+ health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+ } else {
+ health = POWER_SUPPLY_HEALTH_GOOD;
}
val->intval = health;
static int bq24190_charger_get_online(struct bq24190_dev_info *bdi,
union power_supply_propval *val)
{
- u8 v;
+ u8 pg_stat, batfet_disable;
int ret;
ret = bq24190_read_mask(bdi, BQ24190_REG_SS,
BQ24190_REG_SS_PG_STAT_MASK,
- BQ24190_REG_SS_PG_STAT_SHIFT, &v);
+ BQ24190_REG_SS_PG_STAT_SHIFT, &pg_stat);
if (ret < 0)
return ret;
- val->intval = v;
+ ret = bq24190_read_mask(bdi, BQ24190_REG_MOC,
+ BQ24190_REG_MOC_BATFET_DISABLE_MASK,
+ BQ24190_REG_MOC_BATFET_DISABLE_SHIFT, &batfet_disable);
+ if (ret < 0)
+ return ret;
+
+ val->intval = pg_stat && !batfet_disable;
+
return 0;
}
+static int bq24190_battery_set_online(struct bq24190_dev_info *bdi,
+ const union power_supply_propval *val);
+static int bq24190_battery_get_status(struct bq24190_dev_info *bdi,
+ union power_supply_propval *val);
+static int bq24190_battery_get_temp_alert_max(struct bq24190_dev_info *bdi,
+ union power_supply_propval *val);
+static int bq24190_battery_set_temp_alert_max(struct bq24190_dev_info *bdi,
+ const union power_supply_propval *val);
+
+static int bq24190_charger_set_online(struct bq24190_dev_info *bdi,
+ const union power_supply_propval *val)
+{
+ return bq24190_battery_set_online(bdi, val);
+}
+
+static int bq24190_charger_get_status(struct bq24190_dev_info *bdi,
+ union power_supply_propval *val)
+{
+ return bq24190_battery_get_status(bdi, val);
+}
+
+static int bq24190_charger_get_temp_alert_max(struct bq24190_dev_info *bdi,
+ union power_supply_propval *val)
+{
+ return bq24190_battery_get_temp_alert_max(bdi, val);
+}
+
+static int bq24190_charger_set_temp_alert_max(struct bq24190_dev_info *bdi,
+ const union power_supply_propval *val)
+{
+ return bq24190_battery_set_temp_alert_max(bdi, val);
+}
+
static int bq24190_charger_get_current(struct bq24190_dev_info *bdi,
union power_supply_propval *val)
{
case POWER_SUPPLY_PROP_ONLINE:
ret = bq24190_charger_get_online(bdi, val);
break;
+ case POWER_SUPPLY_PROP_STATUS:
+ ret = bq24190_charger_get_status(bdi, val);
+ break;
+ case POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
+ ret = bq24190_charger_get_temp_alert_max(bdi, val);
+ break;
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
ret = bq24190_charger_get_current(bdi, val);
break;
return ret;
switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ ret = bq24190_charger_set_online(bdi, val);
+ break;
+ case POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
+ ret = bq24190_charger_set_temp_alert_max(bdi, val);
+ break;
case POWER_SUPPLY_PROP_CHARGE_TYPE:
ret = bq24190_charger_set_charge_type(bdi, val);
break;
int ret;
switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ case POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
case POWER_SUPPLY_PROP_CHARGE_TYPE:
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
POWER_SUPPLY_PROP_CHARGE_TYPE,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy);
int ret;
+ dev_warn(bdi->dev, "warning: /sys/class/power_supply/bq24190-battery is deprecated\n");
dev_dbg(bdi->dev, "prop: %d\n", psp);
ret = pm_runtime_get_sync(bdi->dev);
struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy);
int ret;
+ dev_warn(bdi->dev, "warning: /sys/class/power_supply/bq24190-battery is deprecated\n");
dev_dbg(bdi->dev, "prop: %d\n", psp);
ret = pm_runtime_get_sync(bdi->dev);
bdi->ss_reg = ss_reg;
}
- if (alert_charger)
+ if (alert_charger || alert_battery)
power_supply_changed(bdi->charger);
- if (alert_battery)
+ if (alert_battery && bdi->battery)
power_supply_changed(bdi->battery);
dev_dbg(bdi->dev, "ss_reg: 0x%02x, f_reg: 0x%02x\n", ss_reg, f_reg);
goto out_pmrt;
}
- battery_cfg.drv_data = bdi;
- bdi->battery = power_supply_register(dev, &bq24190_battery_desc,
- &battery_cfg);
- if (IS_ERR(bdi->battery)) {
- dev_err(dev, "Can't register battery\n");
- ret = PTR_ERR(bdi->battery);
- goto out_charger;
+ /* the battery class is deprecated and will be removed. */
+ /* in the interim, this property hides it. */
+ if (!device_property_read_bool(dev, "omit-battery-class")) {
+ battery_cfg.drv_data = bdi;
+ bdi->battery = power_supply_register(dev, &bq24190_battery_desc,
+ &battery_cfg);
+ if (IS_ERR(bdi->battery)) {
+ dev_err(dev, "Can't register battery\n");
+ ret = PTR_ERR(bdi->battery);
+ goto out_charger;
+ }
}
ret = bq24190_sysfs_create_group(bdi);
if (ret) {
dev_err(dev, "Can't create sysfs entries\n");
- goto out_battery;
+ goto out_charger;
}
bdi->initialized = true;
out_sysfs:
bq24190_sysfs_remove_group(bdi);
-out_battery:
- power_supply_unregister(bdi->battery);
-
out_charger:
+ if (!IS_ERR_OR_NULL(bdi->battery))
+ power_supply_unregister(bdi->battery);
power_supply_unregister(bdi->charger);
out_pmrt:
bq24190_register_reset(bdi);
bq24190_sysfs_remove_group(bdi);
- power_supply_unregister(bdi->battery);
+ if (bdi->battery)
+ power_supply_unregister(bdi->battery);
power_supply_unregister(bdi->charger);
if (error >= 0)
pm_runtime_put_sync(bdi->dev);
/* Things may have changed while suspended so alert upper layer */
power_supply_changed(bdi->charger);
- power_supply_changed(bdi->battery);
+ if (bdi->battery)
+ power_supply_changed(bdi->battery);
return 0;
}
#define CPCAP_REG_CRM_VCHRG_4V30 CPCAP_REG_CRM_VCHRG(0x8)
#define CPCAP_REG_CRM_VCHRG_4V32 CPCAP_REG_CRM_VCHRG(0x9)
#define CPCAP_REG_CRM_VCHRG_4V34 CPCAP_REG_CRM_VCHRG(0xa)
-#define CPCAP_REG_CRM_VCHRG_4V36 CPCAP_REG_CRM_VCHRG(0xb)
+#define CPCAP_REG_CRM_VCHRG_4V35 CPCAP_REG_CRM_VCHRG(0xb)
#define CPCAP_REG_CRM_VCHRG_4V38 CPCAP_REG_CRM_VCHRG(0xc)
#define CPCAP_REG_CRM_VCHRG_4V40 CPCAP_REG_CRM_VCHRG(0xd)
#define CPCAP_REG_CRM_VCHRG_4V42 CPCAP_REG_CRM_VCHRG(0xe)
bool enable;
int error;
- enable = max_voltage && (charge_current || trickle_current);
+ enable = (charge_current || trickle_current);
dev_dbg(ddata->dev, "%s enable: %i\n", __func__, enable);
if (!enable) {
max_current = CPCAP_REG_CRM_ICHRG_0A528;
error = cpcap_charger_set_state(ddata,
- CPCAP_REG_CRM_VCHRG_4V20,
- max_current,
- CPCAP_REG_CRM_TR_0A72);
+ CPCAP_REG_CRM_VCHRG_4V35,
+ max_current, 0);
if (error)
goto out_err;
} else {
}
static const struct power_supply_desc cpcap_charger_usb_desc = {
- .name = "cpcap_usb",
+ .name = "usb",
.type = POWER_SUPPLY_TYPE_USB,
.properties = cpcap_charger_props,
.num_properties = ARRAY_SIZE(cpcap_charger_props),
return 0;
}
-#ifdef CONFIG_PM
-static int gab_suspend(struct device *dev)
+static int __maybe_unused gab_suspend(struct device *dev)
{
struct gab *adc_bat = dev_get_drvdata(dev);
return 0;
}
-static int gab_resume(struct device *dev)
+static int __maybe_unused gab_resume(struct device *dev)
{
struct gab *adc_bat = dev_get_drvdata(dev);
struct gab_platform_data *pdata = adc_bat->pdata;
return 0;
}
-static const struct dev_pm_ops gab_pm_ops = {
- .suspend = gab_suspend,
- .resume = gab_resume,
-};
-
-#define GAB_PM_OPS (&gab_pm_ops)
-#else
-#define GAB_PM_OPS (NULL)
-#endif
+static SIMPLE_DEV_PM_OPS(gab_pm_ops, gab_suspend, gab_resume);
static struct platform_driver gab_driver = {
.driver = {
.name = "generic-adc-battery",
- .pm = GAB_PM_OPS
+ .pm = &gab_pm_ops,
},
.probe = gab_probe,
.remove = gab_remove,
pdata = devm_kzalloc(&pdev->dev,
sizeof(struct isp1704_charger_data), GFP_KERNEL);
+ if (!pdata) {
+ ret = -ENOMEM;
+ goto fail0;
+ }
pdata->enable_gpio = gpio;
dev_info(&pdev->dev, "init gpio %d\n", pdata->enable_gpio);
};
static enum power_supply_property max17042_battery_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_VOLTAGE_MAX,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN,
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_VOLTAGE_AVG,
POWER_SUPPLY_PROP_VOLTAGE_OCV,
POWER_SUPPLY_PROP_CAPACITY,
+ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_CHARGE_FULL,
+ POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_CHARGE_COUNTER,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
POWER_SUPPLY_PROP_TEMP_MIN,
POWER_SUPPLY_PROP_TEMP_MAX,
POWER_SUPPLY_PROP_HEALTH,
+ POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CURRENT_AVG,
};
if (ret < 0)
return ret;
- *temp = data;
- /* The value is signed. */
- if (*temp & 0x8000) {
- *temp = (0x7fff & ~*temp) + 1;
- *temp *= -1;
- }
-
+ *temp = sign_extend32(data, 15);
/* The value is converted into deci-centigrade scale */
/* Units of LSB = 1 / 256 degree Celsius */
*temp = *temp * 10 / 256;
return 0;
}
+static int max17042_get_status(struct max17042_chip *chip, int *status)
+{
+ int ret, charge_full, charge_now;
+
+ ret = power_supply_am_i_supplied(chip->battery);
+ if (ret < 0) {
+ *status = POWER_SUPPLY_STATUS_UNKNOWN;
+ return 0;
+ }
+ if (ret == 0) {
+ *status = POWER_SUPPLY_STATUS_DISCHARGING;
+ return 0;
+ }
+
+ /*
+ * The MAX170xx has builtin end-of-charge detection and will update
+ * FullCAP to match RepCap when it detects end of charging.
+ *
+ * When this cycle the battery gets charged to a higher (calculated)
+ * capacity then the previous cycle then FullCAP will get updated
+ * contineously once end-of-charge detection kicks in, so allow the
+ * 2 to differ a bit.
+ */
+
+ ret = regmap_read(chip->regmap, MAX17042_FullCAP, &charge_full);
+ if (ret < 0)
+ return ret;
+
+ ret = regmap_read(chip->regmap, MAX17042_RepCap, &charge_now);
+ if (ret < 0)
+ return ret;
+
+ if ((charge_full - charge_now) <= MAX17042_FULL_THRESHOLD)
+ *status = POWER_SUPPLY_STATUS_FULL;
+ else
+ *status = POWER_SUPPLY_STATUS_CHARGING;
+
+ return 0;
+}
+
static int max17042_get_battery_health(struct max17042_chip *chip, int *health)
{
int temp, vavg, vbatt, ret;
if (ret < 0)
goto health_error;
- if (temp <= chip->pdata->temp_min) {
+ if (temp < chip->pdata->temp_min) {
*health = POWER_SUPPLY_HEALTH_COLD;
goto out;
}
- if (temp >= chip->pdata->temp_max) {
+ if (temp > chip->pdata->temp_max) {
*health = POWER_SUPPLY_HEALTH_OVERHEAT;
goto out;
}
struct regmap *map = chip->regmap;
int ret;
u32 data;
+ u64 data64;
if (!chip->init_complete)
return -EAGAIN;
switch (psp) {
+ case POWER_SUPPLY_PROP_STATUS:
+ ret = max17042_get_status(chip, &val->intval);
+ if (ret < 0)
+ return ret;
+ break;
case POWER_SUPPLY_PROP_PRESENT:
ret = regmap_read(map, MAX17042_STATUS, &data);
if (ret < 0)
else
val->intval = 1;
break;
+ case POWER_SUPPLY_PROP_TECHNOLOGY:
+ val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
+ break;
case POWER_SUPPLY_PROP_CYCLE_COUNT:
ret = regmap_read(map, MAX17042_Cycles, &data);
if (ret < 0)
val->intval = data >> 8;
val->intval *= 20000; /* Units of LSB = 20mV */
break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+ ret = regmap_read(map, MAX17042_MinMaxVolt, &data);
+ if (ret < 0)
+ return ret;
+
+ val->intval = (data & 0xff) * 20000; /* Units of 20mV */
+ break;
case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17042)
ret = regmap_read(map, MAX17042_V_empty, &data);
val->intval = data >> 8;
break;
+ case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
+ ret = regmap_read(map, MAX17042_DesignCap, &data);
+ if (ret < 0)
+ return ret;
+
+ data64 = data * 5000000ll;
+ do_div(data64, chip->pdata->r_sns);
+ val->intval = data64;
+ break;
case POWER_SUPPLY_PROP_CHARGE_FULL:
ret = regmap_read(map, MAX17042_FullCAP, &data);
if (ret < 0)
return ret;
- val->intval = data * 1000 / 2;
+ data64 = data * 5000000ll;
+ do_div(data64, chip->pdata->r_sns);
+ val->intval = data64;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_NOW:
+ ret = regmap_read(map, MAX17042_RepCap, &data);
+ if (ret < 0)
+ return ret;
+
+ data64 = data * 5000000ll;
+ do_div(data64, chip->pdata->r_sns);
+ val->intval = data64;
break;
case POWER_SUPPLY_PROP_CHARGE_COUNTER:
ret = regmap_read(map, MAX17042_QH, &data);
if (ret < 0)
return ret;
/* LSB is Alert Minimum. In deci-centigrade */
- val->intval = (data & 0xff) * 10;
+ val->intval = sign_extend32(data & 0xff, 7) * 10;
break;
case POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
ret = regmap_read(map, MAX17042_TALRT_Th, &data);
if (ret < 0)
return ret;
/* MSB is Alert Maximum. In deci-centigrade */
- val->intval = (data >> 8) * 10;
+ val->intval = sign_extend32(data >> 8, 7) * 10;
break;
case POWER_SUPPLY_PROP_TEMP_MIN:
val->intval = chip->pdata->temp_min;
if (ret < 0)
return ret;
break;
+ case POWER_SUPPLY_PROP_SCOPE:
+ val->intval = POWER_SUPPLY_SCOPE_SYSTEM;
+ break;
case POWER_SUPPLY_PROP_CURRENT_NOW:
if (chip->pdata->enable_current_sense) {
ret = regmap_read(map, MAX17042_Current, &data);
if (ret < 0)
return ret;
- val->intval = data;
- if (val->intval & 0x8000) {
- /* Negative */
- val->intval = ~val->intval & 0x7fff;
- val->intval++;
- val->intval *= -1;
- }
+ val->intval = sign_extend32(data, 15);
val->intval *= 1562500 / chip->pdata->r_sns;
} else {
return -EINVAL;
if (ret < 0)
return ret;
- val->intval = data;
- if (val->intval & 0x8000) {
- /* Negative */
- val->intval = ~val->intval & 0x7fff;
- val->intval++;
- val->intval *= -1;
- }
+ val->intval = sign_extend32(data, 15);
val->intval *= 1562500 / chip->pdata->r_sns;
} else {
return -EINVAL;
return ret;
}
+static void max17042_external_power_changed(struct power_supply *psy)
+{
+ power_supply_changed(psy);
+}
+
static int max17042_write_verify_reg(struct regmap *map, u8 reg, u32 value)
{
int retries = 8;
#ifdef CONFIG_OF
static struct max17042_platform_data *
-max17042_get_pdata(struct device *dev)
+max17042_get_pdata(struct max17042_chip *chip)
{
+ struct device *dev = &chip->client->dev;
struct device_node *np = dev->of_node;
u32 prop;
struct max17042_platform_data *pdata;
return pdata;
}
#else
+static struct max17042_reg_data max17047_default_pdata_init_regs[] = {
+ /*
+ * Some firmwares do not set FullSOCThr, Enable End-of-Charge Detection
+ * when the voltage FG reports 95%, as recommended in the datasheet.
+ */
+ { MAX17047_FullSOCThr, MAX17042_BATTERY_FULL << 8 },
+};
+
static struct max17042_platform_data *
-max17042_get_pdata(struct device *dev)
+max17042_get_pdata(struct max17042_chip *chip)
{
- return dev->platform_data;
+ struct device *dev = &chip->client->dev;
+ struct max17042_platform_data *pdata;
+ int ret, misc_cfg;
+
+ if (dev->platform_data)
+ return dev->platform_data;
+
+ /*
+ * The MAX17047 gets used on x86 where we might not have pdata, assume
+ * the firmware will already have initialized the fuel-gauge and provide
+ * default values for the non init bits to make things work.
+ */
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return pdata;
+
+ if (chip->chip_type != MAXIM_DEVICE_TYPE_MAX17042) {
+ pdata->init_data = max17047_default_pdata_init_regs;
+ pdata->num_init_data =
+ ARRAY_SIZE(max17047_default_pdata_init_regs);
+ }
+
+ ret = regmap_read(chip->regmap, MAX17042_MiscCFG, &misc_cfg);
+ if (ret < 0)
+ return NULL;
+
+ /* If bits 0-1 are set to 3 then only Voltage readings are used */
+ if ((misc_cfg & 0x3) == 0x3)
+ pdata->enable_current_sense = false;
+ else
+ pdata->enable_current_sense = true;
+
+ pdata->vmin = MAX17042_DEFAULT_VMIN;
+ pdata->vmax = MAX17042_DEFAULT_VMAX;
+ pdata->temp_min = MAX17042_DEFAULT_TEMP_MIN;
+ pdata->temp_max = MAX17042_DEFAULT_TEMP_MAX;
+
+ return pdata;
}
#endif
.get_property = max17042_get_property,
.set_property = max17042_set_property,
.property_is_writeable = max17042_property_is_writeable,
+ .external_power_changed = max17042_external_power_changed,
.properties = max17042_battery_props,
.num_properties = ARRAY_SIZE(max17042_battery_props),
};
return -ENOMEM;
chip->client = client;
+ chip->chip_type = id->driver_data;
chip->regmap = devm_regmap_init_i2c(client, &max17042_regmap_config);
if (IS_ERR(chip->regmap)) {
dev_err(&client->dev, "Failed to initialize regmap\n");
return -EINVAL;
}
- chip->pdata = max17042_get_pdata(&client->dev);
+ chip->pdata = max17042_get_pdata(chip);
if (!chip->pdata) {
dev_err(&client->dev, "no platform data provided\n");
return -EINVAL;
}
i2c_set_clientdata(client, chip);
- chip->chip_type = id->driver_data;
psy_cfg.drv_data = chip;
/* When current is not measured,
static struct device *dev;
static struct pda_power_pdata *pdata;
static struct resource *ac_irq, *usb_irq;
-static struct timer_list charger_timer;
-static struct timer_list supply_timer;
-static struct timer_list polling_timer;
+static struct delayed_work charger_work;
+static struct delayed_work polling_work;
+static struct delayed_work supply_work;
static int polling;
static struct power_supply *pda_psy_ac, *pda_psy_usb;
}
}
-static void supply_timer_func(unsigned long unused)
+static void supply_work_func(struct work_struct *work)
{
if (ac_status == PDA_PSY_TO_CHANGE) {
ac_status = new_ac_status;
* Okay, charger set. Now wait a bit before notifying supplicants,
* charge power should stabilize.
*/
- mod_timer(&supply_timer,
- jiffies + msecs_to_jiffies(pdata->wait_for_charger));
+ cancel_delayed_work(&supply_work);
+ schedule_delayed_work(&supply_work,
+ msecs_to_jiffies(pdata->wait_for_charger));
}
-static void charger_timer_func(unsigned long unused)
+static void charger_work_func(struct work_struct *work)
{
update_status();
psy_changed();
* Wait a bit before reading ac/usb line status and setting charger,
* because ac/usb status readings may lag from irq.
*/
- mod_timer(&charger_timer,
- jiffies + msecs_to_jiffies(pdata->wait_for_status));
+ cancel_delayed_work(&charger_work);
+ schedule_delayed_work(&charger_work,
+ msecs_to_jiffies(pdata->wait_for_status));
return IRQ_HANDLED;
}
-static void polling_timer_func(unsigned long unused)
+static void polling_work_func(struct work_struct *work)
{
int changed = 0;
if (changed)
psy_changed();
- mod_timer(&polling_timer,
- jiffies + msecs_to_jiffies(pdata->polling_interval));
+ cancel_delayed_work(&polling_work);
+ schedule_delayed_work(&polling_work,
+ msecs_to_jiffies(pdata->polling_interval));
}
#if IS_ENABLED(CONFIG_USB_PHY)
* Wait a bit before reading ac/usb line status and setting charger,
* because ac/usb status readings may lag from irq.
*/
- mod_timer(&charger_timer,
- jiffies + msecs_to_jiffies(pdata->wait_for_status));
+ cancel_delayed_work(&charger_work);
+ schedule_delayed_work(&charger_work,
+ msecs_to_jiffies(pdata->wait_for_status));
return NOTIFY_OK;
}
if (!pdata->ac_max_uA)
pdata->ac_max_uA = 500000;
- setup_timer(&charger_timer, charger_timer_func, 0);
- setup_timer(&supply_timer, supply_timer_func, 0);
+ INIT_DELAYED_WORK(&charger_work, charger_work_func);
+ INIT_DELAYED_WORK(&supply_work, supply_work_func);
ac_irq = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "ac");
usb_irq = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "usb");
if (polling) {
dev_dbg(dev, "will poll for status\n");
- setup_timer(&polling_timer, polling_timer_func, 0);
- mod_timer(&polling_timer,
- jiffies + msecs_to_jiffies(pdata->polling_interval));
+ INIT_DELAYED_WORK(&polling_work, polling_work_func);
+ cancel_delayed_work(&polling_work);
+ schedule_delayed_work(&polling_work,
+ msecs_to_jiffies(pdata->polling_interval));
}
if (ac_irq || usb_irq)
free_irq(ac_irq->start, pda_psy_ac);
if (polling)
- del_timer_sync(&polling_timer);
- del_timer_sync(&charger_timer);
- del_timer_sync(&supply_timer);
+ cancel_delayed_work_sync(&polling_work);
+ cancel_delayed_work_sync(&charger_work);
+ cancel_delayed_work_sync(&supply_work);
if (pdata->is_usb_online)
power_supply_unregister(pda_psy_usb);
}
#endif
-static int __power_supply_am_i_supplied(struct device *dev, void *data)
+struct psy_am_i_supplied_data {
+ struct power_supply *psy;
+ unsigned int count;
+};
+
+static int __power_supply_am_i_supplied(struct device *dev, void *_data)
{
union power_supply_propval ret = {0,};
- struct power_supply *psy = data;
struct power_supply *epsy = dev_get_drvdata(dev);
+ struct psy_am_i_supplied_data *data = _data;
- if (__power_supply_is_supplied_by(epsy, psy))
+ data->count++;
+ if (__power_supply_is_supplied_by(epsy, data->psy))
if (!epsy->desc->get_property(epsy, POWER_SUPPLY_PROP_ONLINE,
&ret))
return ret.intval;
int power_supply_am_i_supplied(struct power_supply *psy)
{
+ struct psy_am_i_supplied_data data = { psy, 0 };
int error;
- error = class_for_each_device(power_supply_class, NULL, psy,
+ error = class_for_each_device(power_supply_class, NULL, &data,
__power_supply_am_i_supplied);
- dev_dbg(&psy->dev, "%s %d\n", __func__, error);
+ dev_dbg(&psy->dev, "%s count %u err %d\n", __func__, data.count, error);
+
+ if (data.count == 0)
+ return -ENODEV;
return error;
}
#include <linux/platform_device.h>
#include <linux/power_supply.h>
#include <linux/slab.h>
-#include <linux/i2c/twl4030-madc.h>
#include <linux/iio/consumer.h>
#include <linux/of.h>
u32 i2c_retry_count;
u32 poll_retry_count;
struct delayed_work work;
- int ignore_changes;
};
static char model_name[I2C_SMBUS_BLOCK_MAX + 1];
return 0;
}
+static int sbs_status_correct(struct i2c_client *client, int *intval)
+{
+ int ret;
+
+ ret = sbs_read_word_data(client, sbs_data[REG_CURRENT].addr);
+ if (ret < 0)
+ return ret;
+
+ ret = (s16)ret;
+
+ /* Not drawing current means full (cannot be not charging) */
+ if (ret == 0)
+ *intval = POWER_SUPPLY_STATUS_FULL;
+
+ if (*intval == POWER_SUPPLY_STATUS_FULL) {
+ /* Drawing or providing current when full */
+ if (ret > 0)
+ *intval = POWER_SUPPLY_STATUS_CHARGING;
+ else if (ret < 0)
+ *intval = POWER_SUPPLY_STATUS_DISCHARGING;
+ }
+
+ return 0;
+}
+
static int sbs_get_battery_presence_and_health(
struct i2c_client *client, enum power_supply_property psp,
union power_supply_propval *val)
else
val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ sbs_status_correct(client, &val->intval);
+
if (chip->poll_time == 0)
chip->last_state = val->intval;
else if (chip->last_state != val->intval) {
return 0;
}
-static irqreturn_t sbs_irq(int irq, void *devid)
+static void sbs_supply_changed(struct sbs_info *chip)
{
- struct sbs_info *chip = devid;
struct power_supply *battery = chip->power_supply;
int ret;
ret = gpiod_get_value_cansleep(chip->gpio_detect);
if (ret < 0)
- return ret;
+ return;
chip->is_present = ret;
power_supply_changed(battery);
+}
+static irqreturn_t sbs_irq(int irq, void *devid)
+{
+ sbs_supply_changed(devid);
return IRQ_HANDLED;
}
+static void sbs_alert(struct i2c_client *client, enum i2c_alert_protocol prot,
+ unsigned int data)
+{
+ sbs_supply_changed(i2c_get_clientdata(client));
+}
+
static void sbs_external_power_changed(struct power_supply *psy)
{
struct sbs_info *chip = power_supply_get_drvdata(psy);
- if (chip->ignore_changes > 0) {
- chip->ignore_changes--;
- return;
- }
-
/* cancel outstanding work */
cancel_delayed_work_sync(&chip->work);
else
ret = POWER_SUPPLY_STATUS_CHARGING;
+ sbs_status_correct(chip->client, &ret);
+
if (chip->last_state != ret) {
chip->poll_time = 0;
power_supply_changed(chip->power_supply);
chip->enable_detection = false;
psy_cfg.of_node = client->dev.of_node;
psy_cfg.drv_data = chip;
- /* ignore first notification of external change, it is generated
- * from the power_supply_register call back
- */
- chip->ignore_changes = 1;
chip->last_state = POWER_SUPPLY_STATUS_UNKNOWN;
/* use pdata if available, fall back to DT properties,
}
rc = devm_request_threaded_irq(&client->dev, irq, NULL, sbs_irq,
- IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
dev_name(&client->dev), chip);
if (rc) {
dev_warn(&client->dev, "Failed to request irq: %d\n", rc);
static struct i2c_driver sbs_battery_driver = {
.probe = sbs_probe,
.remove = sbs_remove,
+ .alert = sbs_alert,
.id_table = sbs_id,
.driver = {
.name = "sbs-battery",
}
/*
- * Check if Battery Pack was present
- */
-static int twl4030_is_battery_present(struct twl4030_bci *bci)
-{
- int ret;
- u8 val = 0;
-
- /* Battery presence in Main charge? */
- ret = twl_i2c_read_u8(TWL_MODULE_MAIN_CHARGE, &val, TWL4030_BCIMFSTS3);
- if (ret)
- return ret;
- if (val & TWL4030_BATSTSMCHG)
- return 0;
-
- /*
- * OK, It could be that bootloader did not enable main charger,
- * pre-charge is h/w auto. So, Battery presence in Pre-charge?
- */
- ret = twl_i2c_read_u8(TWL4030_MODULE_PRECHARGE, &val,
- TWL4030_BCIMFSTS1);
- if (ret)
- return ret;
- if (val & TWL4030_BATSTSPCHG)
- return 0;
-
- return -ENODEV;
-}
-
-/*
* TI provided formulas:
* CGAIN == 0: ICHG = (BCIICHG * 1.7) / (2^10 - 1) - 0.85
* CGAIN == 1: ICHG = (BCIICHG * 3.4) / (2^10 - 1) - 1.7
twl4030_bci_state_to_status(state) !=
POWER_SUPPLY_STATUS_NOT_CHARGING;
break;
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ val->intval = -1;
+ if (psy->desc->type != POWER_SUPPLY_TYPE_USB) {
+ if (!bci->ac_is_active)
+ val->intval = bci->ac_cur;
+ } else {
+ if (bci->ac_is_active)
+ val->intval = bci->usb_cur_target;
+ }
+ if (val->intval < 0) {
+ u8 bcictl1;
+
+ val->intval = twl4030bci_read_adc_val(TWL4030_BCIIREF1);
+ if (val->intval < 0)
+ return val->intval;
+ ret = twl4030_bci_read(TWL4030_BCICTL1, &bcictl1);
+ if (ret < 0)
+ return ret;
+ val->intval = regval2ua(val->intval, bcictl1 &
+ TWL4030_CGAIN);
+ }
+ break;
default:
return -EINVAL;
}
return 0;
}
+static int twl4030_bci_set_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ const union power_supply_propval *val)
+{
+ struct twl4030_bci *bci = dev_get_drvdata(psy->dev.parent);
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ if (psy->desc->type == POWER_SUPPLY_TYPE_USB)
+ bci->usb_cur_target = val->intval;
+ else
+ bci->ac_cur = val->intval;
+ twl4030_charger_update_current(bci);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int twl4030_bci_property_is_writeable(struct power_supply *psy,
+ enum power_supply_property psp)
+{
+ switch (psp) {
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ return true;
+ default:
+ return false;
+ }
+}
+
static enum power_supply_property twl4030_charger_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_ONLINE,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
};
#ifdef CONFIG_OF
.properties = twl4030_charger_props,
.num_properties = ARRAY_SIZE(twl4030_charger_props),
.get_property = twl4030_bci_get_property,
+ .set_property = twl4030_bci_set_property,
+ .property_is_writeable = twl4030_bci_property_is_writeable,
};
static const struct power_supply_desc twl4030_bci_usb_desc = {
.properties = twl4030_charger_props,
.num_properties = ARRAY_SIZE(twl4030_charger_props),
.get_property = twl4030_bci_get_property,
+ .set_property = twl4030_bci_set_property,
+ .property_is_writeable = twl4030_bci_property_is_writeable,
};
static int twl4030_bci_probe(struct platform_device *pdev)
bci->irq_chg = platform_get_irq(pdev, 0);
bci->irq_bci = platform_get_irq(pdev, 1);
- /* Only proceed further *IF* battery is physically present */
- ret = twl4030_is_battery_present(bci);
- if (ret) {
- dev_crit(&pdev->dev, "Battery was not detected:%d\n", ret);
- return ret;
- }
-
platform_set_drvdata(pdev, bci);
bci->ac = devm_power_supply_register(&pdev->dev, &twl4030_bci_ac_desc,
#include <linux/power_supply.h>
#include <linux/slab.h>
#include <linux/sort.h>
-#include <linux/i2c/twl4030-madc.h>
#include <linux/power/twl4030_madc_battery.h>
#include <linux/iio/consumer.h>
#define __MAX17042_BATTERY_H_
#define MAX17042_STATUS_BattAbsent (1 << 3)
-#define MAX17042_BATTERY_FULL (100)
+#define MAX17042_BATTERY_FULL (95) /* Recommend. FullSOCThr value */
#define MAX17042_DEFAULT_SNS_RESISTOR (10000)
+#define MAX17042_DEFAULT_VMIN (3000)
+#define MAX17042_DEFAULT_VMAX (4500) /* LiHV cell max */
+#define MAX17042_DEFAULT_TEMP_MIN (0) /* For sys without temp sensor */
+#define MAX17042_DEFAULT_TEMP_MAX (700) /* 70 degrees Celcius */
+
+/* Consider RepCap which is less then 10 units below FullCAP full */
+#define MAX17042_FULL_THRESHOLD 10
#define MAX17042_CHARACTERIZATION_DATA_SIZE 48
projects / platform / kernel / linux-rpi.git / commitdiff