diff options
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/power/Makefile | 3 | ||||
| -rw-r--r-- | drivers/power/bq27x00_battery.c | 2 | ||||
| -rw-r--r-- | drivers/power/da9150-charger.c | 688 | ||||
| -rw-r--r-- | drivers/power/max14577_charger.c | 114 | ||||
| -rw-r--r-- | drivers/power/max17040_battery.c | 9 | ||||
| -rw-r--r-- | drivers/power/max17042_battery.c | 10 | ||||
| -rw-r--r-- | drivers/power/max77693_charger.c | 99 | ||||
| -rw-r--r-- | drivers/power/rt5033_battery.c | 2 |
9 files changed, 842 insertions, 97 deletions
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index 27b751b995fb..640eb36f49c0 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -192,6 +192,18 @@ config BATTERY_DA9052 Say Y here to enable support for batteries charger integrated into DA9052 PMIC. +config CHARGER_DA9150 + tristate "Dialog Semiconductor DA9150 Charger support" + depends on MFD_DA9150 + depends on DA9150_GPADC + depends on IIO + help + Say Y here to enable support for charger unit of the DA9150 + Integrated Charger & Fuel-Gauge IC. + + This driver can also be built as a module. If so, the module will be + called da9150-charger. + config BATTERY_MAX17040 tristate "Maxim MAX17040 Fuel Gauge" depends on I2C diff --git a/drivers/power/Makefile b/drivers/power/Makefile index 36f9e0d10111..7b604f4926fc 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -1,4 +1,4 @@ -ccflags-$(CONFIG_POWER_SUPPLY_DEBUG) := -DDEBUG +subdir-ccflags-$(CONFIG_POWER_SUPPLY_DEBUG) := -DDEBUG power_supply-y := power_supply_core.o power_supply-$(CONFIG_SYSFS) += power_supply_sysfs.o @@ -32,6 +32,7 @@ obj-$(CONFIG_BATTERY_SBS) += sbs-battery.o obj-$(CONFIG_BATTERY_BQ27x00) += bq27x00_battery.o obj-$(CONFIG_BATTERY_DA9030) += da9030_battery.o obj-$(CONFIG_BATTERY_DA9052) += da9052-battery.o +obj-$(CONFIG_CHARGER_DA9150) += da9150-charger.o obj-$(CONFIG_BATTERY_MAX17040) += max17040_battery.o obj-$(CONFIG_BATTERY_MAX17042) += max17042_battery.o obj-$(CONFIG_BATTERY_Z2) += z2_battery.o diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index b72ba7c1bd69..93d2b7f910f1 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -755,7 +755,7 @@ static int bq27x00_powersupply_init(struct bq27x00_device_info *di) INIT_DELAYED_WORK(&di->work, bq27x00_battery_poll); mutex_init(&di->lock); - ret = power_supply_register(di->dev, &di->bat); + ret = power_supply_register_no_ws(di->dev, &di->bat); if (ret) { dev_err(di->dev, "failed to register battery: %d\n", ret); return ret; diff --git a/drivers/power/da9150-charger.c b/drivers/power/da9150-charger.c new file mode 100644 index 000000000000..4df97ea8dcde --- /dev/null +++ b/drivers/power/da9150-charger.c @@ -0,0 +1,688 @@ +/* + * DA9150 Charger Driver + * + * Copyright (c) 2014 Dialog Semiconductor + * + * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/interrupt.h> +#include <linux/power_supply.h> +#include <linux/notifier.h> +#include <linux/usb/phy.h> +#include <linux/iio/consumer.h> +#include <linux/mfd/da9150/core.h> +#include <linux/mfd/da9150/registers.h> + +/* Private data */ +struct da9150_charger { + struct da9150 *da9150; + struct device *dev; + + struct power_supply usb; + struct power_supply battery; + struct power_supply *supply_online; + + struct usb_phy *usb_phy; + struct notifier_block otg_nb; + struct work_struct otg_work; + unsigned long usb_event; + + struct iio_channel *ibus_chan; + struct iio_channel *vbus_chan; + struct iio_channel *tjunc_chan; + struct iio_channel *vbat_chan; +}; + +static inline int da9150_charger_supply_online(struct da9150_charger *charger, + struct power_supply *psy, + union power_supply_propval *val) +{ + val->intval = (psy == charger->supply_online) ? 1 : 0; + + return 0; +} + +/* Charger Properties */ +static int da9150_charger_vbus_voltage_now(struct da9150_charger *charger, + union power_supply_propval *val) +{ + int v_val, ret; + + /* Read processed value - mV units */ + ret = iio_read_channel_processed(charger->vbus_chan, &v_val); + if (ret < 0) + return ret; + + /* Convert voltage to expected uV units */ + val->intval = v_val * 1000; + + return 0; +} + +static int da9150_charger_ibus_current_avg(struct da9150_charger *charger, + union power_supply_propval *val) +{ + int i_val, ret; + + /* Read processed value - mA units */ + ret = iio_read_channel_processed(charger->ibus_chan, &i_val); + if (ret < 0) + return ret; + + /* Convert current to expected uA units */ + val->intval = i_val * 1000; + + return 0; +} + +static int da9150_charger_tjunc_temp(struct da9150_charger *charger, + union power_supply_propval *val) +{ + int t_val, ret; + + /* Read processed value - 0.001 degrees C units */ + ret = iio_read_channel_processed(charger->tjunc_chan, &t_val); + if (ret < 0) + return ret; + + /* Convert temp to expect 0.1 degrees C units */ + val->intval = t_val / 100; + + return 0; +} + +static enum power_supply_property da9150_charger_props[] = { + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_CURRENT_AVG, + POWER_SUPPLY_PROP_TEMP, +}; + +static int da9150_charger_get_prop(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct da9150_charger *charger = dev_get_drvdata(psy->dev->parent); + int ret; + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + ret = da9150_charger_supply_online(charger, psy, val); + break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + ret = da9150_charger_vbus_voltage_now(charger, val); + break; + case POWER_SUPPLY_PROP_CURRENT_AVG: + ret = da9150_charger_ibus_current_avg(charger, val); + break; + case POWER_SUPPLY_PROP_TEMP: + ret = da9150_charger_tjunc_temp(charger, val); + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +/* Battery Properties */ +static int da9150_charger_battery_status(struct da9150_charger *charger, + union power_supply_propval *val) +{ + u8 reg; + + /* Check to see if battery is discharging */ + reg = da9150_reg_read(charger->da9150, DA9150_STATUS_H); + + if (((reg & DA9150_VBUS_STAT_MASK) == DA9150_VBUS_STAT_OFF) || + ((reg & DA9150_VBUS_STAT_MASK) == DA9150_VBUS_STAT_WAIT)) { + val->intval = POWER_SUPPLY_STATUS_DISCHARGING; + + return 0; + } + + reg = da9150_reg_read(charger->da9150, DA9150_STATUS_J); + + /* Now check for other states */ + switch (reg & DA9150_CHG_STAT_MASK) { + case DA9150_CHG_STAT_ACT: + case DA9150_CHG_STAT_PRE: + case DA9150_CHG_STAT_CC: + case DA9150_CHG_STAT_CV: + val->intval = POWER_SUPPLY_STATUS_CHARGING; + break; + case DA9150_CHG_STAT_OFF: + case DA9150_CHG_STAT_SUSP: + case DA9150_CHG_STAT_TEMP: + case DA9150_CHG_STAT_TIME: + case DA9150_CHG_STAT_BAT: + val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING; + break; + case DA9150_CHG_STAT_FULL: + val->intval = POWER_SUPPLY_STATUS_FULL; + break; + default: + val->intval = POWER_SUPPLY_STATUS_UNKNOWN; + break; + } + + return 0; +} + +static int da9150_charger_battery_health(struct da9150_charger *charger, + union power_supply_propval *val) +{ + u8 reg; + + reg = da9150_reg_read(charger->da9150, DA9150_STATUS_J); + + /* Check if temperature limit reached */ + switch (reg & DA9150_CHG_TEMP_MASK) { + case DA9150_CHG_TEMP_UNDER: + val->intval = POWER_SUPPLY_HEALTH_COLD; + return 0; + case DA9150_CHG_TEMP_OVER: + val->intval = POWER_SUPPLY_HEALTH_OVERHEAT; + return 0; + default: + break; + } + + /* Check for other health states */ + switch (reg & DA9150_CHG_STAT_MASK) { + case DA9150_CHG_STAT_ACT: + case DA9150_CHG_STAT_PRE: + val->intval = POWER_SUPPLY_HEALTH_DEAD; + break; + case DA9150_CHG_STAT_TIME: + val->intval = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE; + break; + default: + val->intval = POWER_SUPPLY_HEALTH_GOOD; + break; + } + + return 0; +} + +static int da9150_charger_battery_present(struct da9150_charger *charger, + union power_supply_propval *val) +{ + u8 reg; + + /* Check if battery present or removed */ + reg = da9150_reg_read(charger->da9150, DA9150_STATUS_J); + if ((reg & DA9150_CHG_STAT_MASK) == DA9150_CHG_STAT_BAT) + val->intval = 0; + else + val->intval = 1; + + return 0; +} + +static int da9150_charger_battery_charge_type(struct da9150_charger *charger, + union power_supply_propval *val) +{ + u8 reg; + + reg = da9150_reg_read(charger->da9150, DA9150_STATUS_J); + + switch (reg & DA9150_CHG_STAT_MASK) { + case DA9150_CHG_STAT_CC: + val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST; + break; + case DA9150_CHG_STAT_ACT: + case DA9150_CHG_STAT_PRE: + case DA9150_CHG_STAT_CV: + val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE; + break; + default: + val->intval = POWER_SUPPLY_CHARGE_TYPE_NONE; + break; + } + + return 0; +} + +static int da9150_charger_battery_voltage_min(struct da9150_charger *charger, + union power_supply_propval *val) +{ + u8 reg; + + reg = da9150_reg_read(charger->da9150, DA9150_PPR_CHGCTRL_C); + + /* Value starts at 2500 mV, 50 mV increments, presented in uV */ + val->intval = ((reg & DA9150_CHG_VFAULT_MASK) * 50000) + 2500000; + + return 0; +} + +static int da9150_charger_battery_voltage_now(struct da9150_charger *charger, + union power_supply_propval *val) +{ + int v_val, ret; + + /* Read processed value - mV units */ + ret = iio_read_channel_processed(charger->vbat_chan, &v_val); + if (ret < 0) + return ret; + + val->intval = v_val * 1000; + + return 0; +} + +static int da9150_charger_battery_current_max(struct da9150_charger *charger, + union power_supply_propval *val) +{ + int reg; + + reg = da9150_reg_read(charger->da9150, DA9150_PPR_CHGCTRL_D); + + /* 25mA increments */ + val->intval = reg * 25000; + + return 0; +} + +static int da9150_charger_battery_voltage_max(struct da9150_charger *charger, + union power_supply_propval *val) +{ + u8 reg; + + reg = da9150_reg_read(charger->da9150, DA9150_PPR_CHGCTRL_B); + + /* Value starts at 3650 mV, 25 mV increments, presented in uV */ + val->intval = ((reg & DA9150_CHG_VBAT_MASK) * 25000) + 3650000; + return 0; +} + +static enum power_supply_property da9150_charger_bat_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_CHARGE_TYPE, + POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX, +}; + +static int da9150_charger_battery_get_prop(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct da9150_charger *charger = dev_get_drvdata(psy->dev->parent); + int ret; + + switch (psp) { + case POWER_SUPPLY_PROP_STATUS: + ret = da9150_charger_battery_status(charger, val); + break; + case POWER_SUPPLY_PROP_ONLINE: + ret = da9150_charger_supply_online(charger, psy, val); + break; + case POWER_SUPPLY_PROP_HEALTH: + ret = da9150_charger_battery_health(charger, val); + break; + case POWER_SUPPLY_PROP_PRESENT: + ret = da9150_charger_battery_present(charger, val); + break; + case POWER_SUPPLY_PROP_CHARGE_TYPE: + ret = da9150_charger_battery_charge_type(charger, val); + break; + case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: + ret = da9150_charger_battery_voltage_min(charger, val); + break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + ret = da9150_charger_battery_voltage_now(charger, val); + break; + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX: + ret = da9150_charger_battery_current_max(charger, val); + break; + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX: + ret = da9150_charger_battery_voltage_max(charger, val); + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static irqreturn_t da9150_charger_chg_irq(int irq, void *data) +{ + struct da9150_charger *charger = data; + + power_supply_changed(&charger->battery); + + return IRQ_HANDLED; +} + +static irqreturn_t da9150_charger_tjunc_irq(int irq, void *data) +{ + struct da9150_charger *charger = data; + + /* Nothing we can really do except report this. */ + dev_crit(charger->dev, "TJunc over temperature!!!\n"); + power_supply_changed(&charger->usb); + + return IRQ_HANDLED; +} + +static irqreturn_t da9150_charger_vfault_irq(int irq, void *data) +{ + struct da9150_charger *charger = data; + + /* Nothing we can really do except report this. */ + dev_crit(charger->dev, "VSYS under voltage!!!\n"); + power_supply_changed(&charger->usb); + power_supply_changed(&charger->battery); + + return IRQ_HANDLED; +} + +static irqreturn_t da9150_charger_vbus_irq(int irq, void *data) +{ + struct da9150_charger *charger = data; + u8 reg; + + reg = da9150_reg_read(charger->da9150, DA9150_STATUS_H); + + /* Charger plugged in or battery only */ + switch (reg & DA9150_VBUS_STAT_MASK) { + case DA9150_VBUS_STAT_OFF: + case DA9150_VBUS_STAT_WAIT: + charger->supply_online = &charger->battery; + break; + case DA9150_VBUS_STAT_CHG: + charger->supply_online = &charger->usb; + break; + default: + dev_warn(charger->dev, "Unknown VBUS state - reg = 0x%x\n", + reg); + charger->supply_online = NULL; + break; + } + + power_supply_changed(&charger->usb); + power_supply_changed(&charger->battery); + + return IRQ_HANDLED; +} + +static void da9150_charger_otg_work(struct work_struct *data) +{ + struct da9150_charger *charger = + container_of(data, struct da9150_charger, otg_work); + + switch (charger->usb_event) { + case USB_EVENT_ID: + /* Enable OTG Boost */ + da9150_set_bits(charger->da9150, DA9150_PPR_BKCTRL_A, + DA9150_VBUS_MODE_MASK, DA9150_VBUS_MODE_OTG); + break; + case USB_EVENT_NONE: + /* Revert to charge mode */ + power_supply_changed(&charger->usb); + power_supply_changed(&charger->battery); + da9150_set_bits(charger->da9150, DA9150_PPR_BKCTRL_A, + DA9150_VBUS_MODE_MASK, DA9150_VBUS_MODE_CHG); + break; + } +} + +static int da9150_charger_otg_ncb(struct notifier_block *nb, unsigned long val, + void *priv) +{ + struct da9150_charger *charger = + container_of(nb, struct da9150_charger, otg_nb); + + dev_dbg(charger->dev, "DA9150 OTG notify %lu\n", val); + + charger->usb_event = val; + schedule_work(&charger->otg_work); + + return NOTIFY_OK; +} + +static int da9150_charger_register_irq(struct platform_device *pdev, + irq_handler_t handler, + const char *irq_name) +{ + struct device *dev = &pdev->dev; + struct da9150_charger *charger = platform_get_drvdata(pdev); + int irq, ret; + + irq = platform_get_irq_byname(pdev, irq_name); + if (irq < 0) { + dev_err(dev, "Failed to get IRQ CHG_STATUS: %d\n", irq); + return irq; + } + + ret = request_threaded_irq(irq, NULL, handler, IRQF_ONESHOT, irq_name, + charger); + if (ret) + dev_err(dev, "Failed to request IRQ %d: %d\n", irq, ret); + + return ret; +} + +static void da9150_charger_unregister_irq(struct platform_device *pdev, + const char *irq_name) +{ + struct device *dev = &pdev->dev; + struct da9150_charger *charger = platform_get_drvdata(pdev); + int irq; + + irq = platform_get_irq_byname(pdev, irq_name); + if (irq < 0) { + dev_err(dev, "Failed to get IRQ CHG_STATUS: %d\n", irq); + return; + } + + free_irq(irq, charger); +} + +static int da9150_charger_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct da9150 *da9150 = dev_get_drvdata(dev->parent); + struct da9150_charger *charger; + struct power_supply *usb, *battery; + u8 reg; + int ret; + + charger = devm_kzalloc(dev, sizeof(struct da9150_charger), GFP_KERNEL); + if (!charger) + return -ENOMEM; + + platform_set_drvdata(pdev, charger); + charger->da9150 = da9150; + charger->dev = dev; + + /* Acquire ADC channels */ + charger->ibus_chan = iio_channel_get(dev, "CHAN_IBUS"); + if (IS_ERR(charger->ibus_chan)) { + ret = PTR_ERR(charger->ibus_chan); + goto ibus_chan_fail; + } + + charger->vbus_chan = iio_channel_get(dev, "CHAN_VBUS"); + if (IS_ERR(charger->vbus_chan)) { + ret = PTR_ERR(charger->vbus_chan); + goto vbus_chan_fail; + } + + charger->tjunc_chan = iio_channel_get(dev, "CHAN_TJUNC"); + if (IS_ERR(charger->tjunc_chan)) { + ret = PTR_ERR(charger->tjunc_chan); + goto tjunc_chan_fail; + } + + charger->vbat_chan = iio_channel_get(dev, "CHAN_VBAT"); + if (IS_ERR(charger->vbat_chan)) { + ret = PTR_ERR(charger->vbat_chan); + goto vbat_chan_fail; + } + + /* Register power supplies */ + usb = &charger->usb; + battery = &charger->battery; + + usb->name = "da9150-usb", + usb->type = POWER_SUPPLY_TYPE_USB; + usb->properties = da9150_charger_props; + usb->num_properties = ARRAY_SIZE(da9150_charger_props); + usb->get_property = da9150_charger_get_prop; + ret = power_supply_register(dev, usb); + if (ret) + goto usb_fail; + + battery->name = "da9150-battery"; + battery->type = POWER_SUPPLY_TYPE_BATTERY; + battery->properties = da9150_charger_bat_props; + battery->num_properties = ARRAY_SIZE(da9150_charger_bat_props); + battery->get_property = da9150_charger_battery_get_prop; + ret = power_supply_register(dev, battery); + if (ret) + goto battery_fail; + + /* Get initial online supply */ + reg = da9150_reg_read(da9150, DA9150_STATUS_H); + + switch (reg & DA9150_VBUS_STAT_MASK) { + case DA9150_VBUS_STAT_OFF: + case DA9150_VBUS_STAT_WAIT: + charger->supply_online = &charger->battery; + break; + case DA9150_VBUS_STAT_CHG: + charger->supply_online = &charger->usb; + break; + default: + dev_warn(dev, "Unknown VBUS state - reg = 0x%x\n", reg); + charger->supply_online = NULL; + break; + } + + /* Setup OTG reporting & configuration */ + charger->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); + if (!IS_ERR_OR_NULL(charger->usb_phy)) { + INIT_WORK(&charger->otg_work, da9150_charger_otg_work); + charger->otg_nb.notifier_call = da9150_charger_otg_ncb; + usb_register_notifier(charger->usb_phy, &charger->otg_nb); + } + + /* Register IRQs */ + ret = da9150_charger_register_irq(pdev, da9150_charger_chg_irq, + "CHG_STATUS"); + if (ret < 0) + goto chg_irq_fail; + + ret = da9150_charger_register_irq(pdev, da9150_charger_tjunc_irq, + "CHG_TJUNC"); + if (ret < 0) + goto tjunc_irq_fail; + + ret = da9150_charger_register_irq(pdev, da9150_charger_vfault_irq, + "CHG_VFAULT"); + if (ret < 0) + goto vfault_irq_fail; + + ret = da9150_charger_register_irq(pdev, da9150_charger_vbus_irq, + "CHG_VBUS"); + if (ret < 0) + goto vbus_irq_fail; + + return 0; + + +vbus_irq_fail: + da9150_charger_unregister_irq(pdev, "CHG_VFAULT"); +vfault_irq_fail: + da9150_charger_unregister_irq(pdev, "CHG_TJUNC"); +tjunc_irq_fail: + da9150_charger_unregister_irq(pdev, "CHG_STATUS"); +chg_irq_fail: + if (!IS_ERR_OR_NULL(charger->usb_phy)) + usb_unregister_notifier(charger->usb_phy, &charger->otg_nb); +battery_fail: + power_supply_unregister(usb); + +usb_fail: + iio_channel_release(charger->vbat_chan); + +vbat_chan_fail: + iio_channel_release(charger->tjunc_chan); + +tjunc_chan_fail: + iio_channel_release(charger->vbus_chan); + +vbus_chan_fail: + iio_channel_release(charger->ibus_chan); + +ibus_chan_fail: + return ret; +} + +static int da9150_charger_remove(struct platform_device *pdev) +{ + struct da9150_charger *charger = platform_get_drvdata(pdev); + int irq; + + /* Make sure IRQs are released before unregistering power supplies */ + irq = platform_get_irq_byname(pdev, "CHG_VBUS"); + free_irq(irq, charger); + + irq = platform_get_irq_byname(pdev, "CHG_VFAULT"); + free_irq(irq, charger); + + irq = platform_get_irq_byname(pdev, "CHG_TJUNC"); + free_irq(irq, charger); + + irq = platform_get_irq_byname(pdev, "CHG_STATUS"); + free_irq(irq, charger); + + if (!IS_ERR_OR_NULL(charger->usb_phy)) + usb_unregister_notifier(charger->usb_phy, &charger->otg_nb); + + power_supply_unregister(&charger->battery); + power_supply_unregister(&charger->usb); + + /* Release ADC channels */ + iio_channel_release(charger->ibus_chan); + iio_channel_release(charger->vbus_chan); + iio_channel_release(charger->tjunc_chan); + iio_channel_release(charger->vbat_chan); + + return 0; +} + +static struct platform_driver da9150_charger_driver = { + .driver = { + .name = "da9150-charger", + }, + .probe = da9150_charger_probe, + .remove = da9150_charger_remove, +}; + +module_platform_driver(da9150_charger_driver); + +MODULE_DESCRIPTION("Charger Driver for DA9150"); +MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/power/max14577_charger.c b/drivers/power/max14577_charger.c index ef4103ee6021..4736dc478578 100644 --- a/drivers/power/max14577_charger.c +++ b/drivers/power/max14577_charger.c @@ -26,9 +26,6 @@ struct max14577_charger { struct max14577 *max14577; struct power_supply charger; - unsigned int charging_state; - unsigned int battery_state; - struct max14577_charger_platform_data *pdata; }; @@ -57,10 +54,10 @@ static enum max14577_muic_charger_type maxim_get_charger_type( } } -static int max14577_get_charger_state(struct max14577_charger *chg) +static int max14577_get_charger_state(struct max14577_charger *chg, int *val) { struct regmap *rmap = chg->max14577->regmap; - int state = POWER_SUPPLY_STATUS_DISCHARGING; + int ret; u8 reg_data; /* @@ -74,23 +71,32 @@ static int max14577_get_charger_state(struct max14577_charger *chg) * - handle properly dead-battery charging (respect timer) * - handle timers (fast-charge and prequal) /MBCCHGERR/ */ - max14577_read_reg(rmap, MAX14577_CHG_REG_CHG_CTRL2, ®_data); - if ((reg_data & CHGCTRL2_MBCHOSTEN_MASK) == 0) - goto state_set; + ret = max14577_read_reg(rmap, MAX14577_CHG_REG_CHG_CTRL2, ®_data); + if (ret < 0) + goto out; + + if ((reg_data & CHGCTRL2_MBCHOSTEN_MASK) == 0) { + *val = POWER_SUPPLY_STATUS_DISCHARGING; + goto out; + } + + ret = max14577_read_reg(rmap, MAX14577_CHG_REG_STATUS3, ®_data); + if (ret < 0) + goto out; - max14577_read_reg(rmap, MAX14577_CHG_REG_STATUS3, ®_data); if (reg_data & STATUS3_CGMBC_MASK) { /* Charger or USB-cable is connected */ if (reg_data & STATUS3_EOC_MASK) - state = POWER_SUPPLY_STATUS_FULL; + *val = POWER_SUPPLY_STATUS_FULL; else - state = POWER_SUPPLY_STATUS_CHARGING; - goto state_set; + *val = POWER_SUPPLY_STATUS_CHARGING; + goto out; } -state_set: - chg->charging_state = state; - return state; + *val = POWER_SUPPLY_STATUS_DISCHARGING; + +out: + return ret; } /* @@ -98,8 +104,10 @@ state_set: * - POWER_SUPPLY_CHARGE_TYPE_NONE * - POWER_SUPPLY_CHARGE_TYPE_FAST */ -static int max14577_get_charge_type(struct max14577_charger *chg) +static int max14577_get_charge_type(struct max14577_charger *chg, int *val) { + int ret, charging; + /* * TODO: CHARGE_TYPE_TRICKLE (VCHGR_RC or EOC)? * As spec says: @@ -108,18 +116,29 @@ static int max14577_get_charge_type(struct max14577_charger *chg) * top-off timer starts. The device continues to trickle * charge the battery until the top-off timer runs out." */ - if (max14577_get_charger_state(chg) == POWER_SUPPLY_STATUS_CHARGING) - return POWER_SUPPLY_CHARGE_TYPE_FAST; - return POWER_SUPPLY_CHARGE_TYPE_NONE; + ret = max14577_get_charger_state(chg, &charging); + if (ret < 0) + return ret; + + if (charging == POWER_SUPPLY_STATUS_CHARGING) + *val = POWER_SUPPLY_CHARGE_TYPE_FAST; + else + *val = POWER_SUPPLY_CHARGE_TYPE_NONE; + + return 0; } -static int max14577_get_online(struct max14577_charger *chg) +static int max14577_get_online(struct max14577_charger *chg, int *val) { struct regmap *rmap = chg->max14577->regmap; u8 reg_data; + int ret; enum max14577_muic_charger_type chg_type; - max14577_read_reg(rmap, MAX14577_MUIC_REG_STATUS2, ®_data); + ret = max14577_read_reg(rmap, MAX14577_MUIC_REG_STATUS2, ®_data); + if (ret < 0) + return ret; + reg_data = ((reg_data & STATUS2_CHGTYP_MASK) >> STATUS2_CHGTYP_SHIFT); chg_type = maxim_get_charger_type(chg->max14577->dev_type, reg_data); switch (chg_type) { @@ -129,14 +148,17 @@ static int max14577_get_online(struct max14577_charger *chg) case MAX14577_CHARGER_TYPE_SPECIAL_1A: case MAX14577_CHARGER_TYPE_DEAD_BATTERY: case MAX77836_CHARGER_TYPE_SPECIAL_BIAS: - return 1; + *val = 1; + break; case MAX14577_CHARGER_TYPE_NONE: case MAX14577_CHARGER_TYPE_DOWNSTREAM_PORT: case MAX14577_CHARGER_TYPE_RESERVED: case MAX77836_CHARGER_TYPE_RESERVED: default: - return 0; + *val = 0; } + + return 0; } /* @@ -145,30 +167,38 @@ static int max14577_get_online(struct max14577_charger *chg) * - POWER_SUPPLY_HEALTH_OVERVOLTAGE * - POWER_SUPPLY_HEALTH_GOOD */ -static int max14577_get_battery_health(struct max14577_charger *chg) +static int max14577_get_battery_health(struct max14577_charger *chg, int *val) { struct regmap *rmap = chg->max14577->regmap; - int state = POWER_SUPPLY_HEALTH_GOOD; + int ret; u8 reg_data; enum max14577_muic_charger_type chg_type; - max14577_read_reg(rmap, MAX14577_MUIC_REG_STATUS2, ®_data); + ret = max14577_read_reg(rmap, MAX14577_MUIC_REG_STATUS2, ®_data); + if (ret < 0) + goto out; + reg_data = ((reg_data & STATUS2_CHGTYP_MASK) >> STATUS2_CHGTYP_SHIFT); chg_type = maxim_get_charger_type(chg->max14577->dev_type, reg_data); if (chg_type == MAX14577_CHARGER_TYPE_DEAD_BATTERY) { - state = POWER_SUPPLY_HEALTH_DEAD; - goto state_set; + *val = POWER_SUPPLY_HEALTH_DEAD; + goto out; } - max14577_read_reg(rmap, MAX14577_CHG_REG_STATUS3, ®_data); + ret = max14577_read_reg(rmap, MAX14577_CHG_REG_STATUS3, ®_data); + if (ret < 0) + goto out; + if (reg_data & STATUS3_OVP_MASK) { - state = POWER_SUPPLY_HEALTH_OVERVOLTAGE; - goto state_set; + *val = POWER_SUPPLY_HEALTH_OVERVOLTAGE; + goto out; } -state_set: - chg->battery_state = state; - return state; + /* Not dead, not overvoltage */ + *val = POWER_SUPPLY_HEALTH_GOOD; + +out: + return ret; } /* @@ -176,9 +206,11 @@ state_set: * The max14577 chip doesn't report any status of battery presence. * Lets assume that it will always be used with some battery. */ -static int max14577_get_present(struct max14577_charger *chg) +static int max14577_get_present(struct max14577_charger *chg, int *val) { - return 1; + *val = 1; + + return 0; } static int max14577_set_fast_charge_timer(struct max14577_charger *chg, @@ -396,19 +428,19 @@ static int max14577_charger_get_property(struct power_supply *psy, switch (psp) { case POWER_SUPPLY_PROP_STATUS: - val->intval = max14577_get_charger_state(chg); + ret = max14577_get_charger_state(chg, &val->intval); break; case POWER_SUPPLY_PROP_CHARGE_TYPE: - val->intval = max14577_get_charge_type(chg); + ret = max14577_get_charge_type(chg, &val->intval); break; case POWER_SUPPLY_PROP_HEALTH: - val->intval = max14577_get_battery_health(chg); + ret = max14577_get_battery_health(chg, &val->intval); break; case POWER_SUPPLY_PROP_PRESENT: - val->intval = max14577_get_present(chg); + ret = max14577_get_present(chg, &val->intval); break; case POWER_SUPPLY_PROP_ONLINE: - val->intval = max14577_get_online(chg); + ret = max14577_get_online(chg, &val->intval); break; case POWER_SUPPLY_PROP_MODEL_NAME: BUILD_BUG_ON(ARRAY_SIZE(model_names) != MAXIM_DEVICE_TYPE_NUM); diff --git a/drivers/power/max17040_battery.c b/drivers/power/max17040_battery.c index 14d44706327b..63ff3f705154 100644 --- a/drivers/power/max17040_battery.c +++ b/drivers/power/max17040_battery.c @@ -188,7 +188,8 @@ static void max17040_work(struct work_struct *work) max17040_get_online(chip->client); max17040_get_status(chip->client); - schedule_delayed_work(&chip->work, MAX17040_DELAY); + queue_delayed_work(system_power_efficient_wq, &chip->work, + MAX17040_DELAY); } static enum power_supply_property max17040_battery_props[] = { @@ -233,7 +234,8 @@ static int max17040_probe(struct i2c_client *client, max17040_get_version(client); INIT_DEFERRABLE_WORK(&chip->work, max17040_work); - schedule_delayed_work(&chip->work, MAX17040_DELAY); + queue_delayed_work(system_power_efficient_wq, &chip->work, + MAX17040_DELAY); return 0; } @@ -263,7 +265,8 @@ static int max17040_resume(struct device *dev) struct i2c_client *client = to_i2c_client(dev); struct max17040_chip *chip = i2c_get_clientdata(client); - schedule_delayed_work(&chip->work, MAX17040_DELAY); + queue_delayed_work(system_power_efficient_wq, &chip->work, + MAX17040_DELAY); return 0; } diff --git a/drivers/power/max17042_battery.c b/drivers/power/max17042_battery.c index 1da6c5fbdff5..830435adfb64 100644 --- a/drivers/power/max17042_battery.c +++ b/drivers/power/max17042_battery.c @@ -529,7 +529,6 @@ static int max17042_init_chip(struct max17042_chip *chip) { struct regmap *map = chip->regmap; int ret; - int val; max17042_override_por_values(chip); /* After Power up, the MAX17042 requires 500mS in order @@ -572,8 +571,7 @@ static int max17042_init_chip(struct max17042_chip *chip) max17042_load_new_capacity_params(chip); /* Init complete, Clear the POR bit */ - regmap_read(map, MAX17042_STATUS, &val); - regmap_write(map, MAX17042_STATUS, val & (~STATUS_POR_BIT)); + regmap_update_bits(map, MAX17042_STATUS, STATUS_POR_BIT, 0x0); return 0; } @@ -745,9 +743,9 @@ static int max17042_probe(struct i2c_client *client, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, chip->battery.name, chip); if (!ret) { - regmap_read(chip->regmap, MAX17042_CONFIG, &val); - val |= CONFIG_ALRT_BIT_ENBL; - regmap_write(chip->regmap, MAX17042_CONFIG, val); + regmap_update_bits(chip->regmap, MAX17042_CONFIG, + CONFIG_ALRT_BIT_ENBL, + CONFIG_ALRT_BIT_ENBL); max17042_set_soc_threshold(chip, 1); } else { client->irq = 0; diff --git a/drivers/power/max77693_charger.c b/drivers/power/max77693_charger.c index b042970fdeaf..ca52e7d15b95 100644 --- a/drivers/power/max77693_charger.c +++ b/drivers/power/max77693_charger.c @@ -38,13 +38,14 @@ struct max77693_charger { u32 charge_input_threshold_volt; }; -static int max77693_get_charger_state(struct regmap *regmap) +static int max77693_get_charger_state(struct regmap *regmap, int *val) { - int state; + int ret; unsigned int data; - if (regmap_read(regmap, MAX77693_CHG_REG_CHG_DETAILS_01, &data) < 0) - return POWER_SUPPLY_STATUS_UNKNOWN; + ret = regmap_read(regmap, MAX77693_CHG_REG_CHG_DETAILS_01, &data); + if (ret < 0) + return ret; data &= CHG_DETAILS_01_CHG_MASK; data >>= CHG_DETAILS_01_CHG_SHIFT; @@ -56,35 +57,36 @@ static int max77693_get_charger_state(struct regmap *regmap) case MAX77693_CHARGING_TOP_OFF: /* In high temp the charging current is reduced, but still charging */ case MAX77693_CHARGING_HIGH_TEMP: - state = POWER_SUPPLY_STATUS_CHARGING; + *val = POWER_SUPPLY_STATUS_CHARGING; break; case MAX77693_CHARGING_DONE: - state = POWER_SUPPLY_STATUS_FULL; + *val = POWER_SUPPLY_STATUS_FULL; break; case MAX77693_CHARGING_TIMER_EXPIRED: case MAX77693_CHARGING_THERMISTOR_SUSPEND: - state = POWER_SUPPLY_STATUS_NOT_CHARGING; + *val = POWER_SUPPLY_STATUS_NOT_CHARGING; break; case MAX77693_CHARGING_OFF: case MAX77693_CHARGING_OVER_TEMP: case MAX77693_CHARGING_WATCHDOG_EXPIRED: - state = POWER_SUPPLY_STATUS_DISCHARGING; + *val = POWER_SUPPLY_STATUS_DISCHARGING; break; case MAX77693_CHARGING_RESERVED: default: - state = POWER_SUPPLY_STATUS_UNKNOWN; + *val = POWER_SUPPLY_STATUS_UNKNOWN; } - return state; + return 0; } -static int max77693_get_charge_type(struct regmap *regmap) +static int max77693_get_charge_type(struct regmap *regmap, int *val) { - int state; + int ret; unsigned int data; - if (regmap_read(regmap, MAX77693_CHG_REG_CHG_DETAILS_01, &data) < 0) - return POWER_SUPPLY_CHARGE_TYPE_UNKNOWN; + ret = regmap_read(regmap, MAX77693_CHG_REG_CHG_DETAILS_01, &data); + if (ret < 0) + return ret; data &= CHG_DETAILS_01_CHG_MASK; data >>= CHG_DETAILS_01_CHG_SHIFT; @@ -96,13 +98,13 @@ static int max77693_get_charge_type(struct regmap *regmap) * 100 and 250 mA. It is higher than prequalification current. */ case MAX77693_CHARGING_TOP_OFF: - state = POWER_SUPPLY_CHARGE_TYPE_TRICKLE; + *val = POWER_SUPPLY_CHARGE_TYPE_TRICKLE; break; case MAX77693_CHARGING_FAST_CONST_CURRENT: case MAX77693_CHARGING_FAST_CONST_VOLTAGE: /* In high temp the charging current is reduced, but still charging */ case MAX77693_CHARGING_HIGH_TEMP: - state = POWER_SUPPLY_CHARGE_TYPE_FAST; + *val = POWER_SUPPLY_CHARGE_TYPE_FAST; break; case MAX77693_CHARGING_DONE: case MAX77693_CHARGING_TIMER_EXPIRED: @@ -110,14 +112,14 @@ static int max77693_get_charge_type(struct regmap *regmap) case MAX77693_CHARGING_OFF: case MAX77693_CHARGING_OVER_TEMP: case MAX77693_CHARGING_WATCHDOG_EXPIRED: - state = POWER_SUPPLY_CHARGE_TYPE_NONE; + *val = POWER_SUPPLY_CHARGE_TYPE_NONE; break; case MAX77693_CHARGING_RESERVED: default: - state = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN; + *val = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN; } - return state; + return 0; } /* @@ -129,69 +131,78 @@ static int max77693_get_charge_type(struct regmap *regmap) * - POWER_SUPPLY_HEALTH_UNKNOWN * - POWER_SUPPLY_HEALTH_UNSPEC_FAILURE */ -static int max77693_get_battery_health(struct regmap *regmap) +static int max77693_get_battery_health(struct regmap *regmap, int *val) { - int state; + int ret; unsigned int data; - if (regmap_read(regmap, MAX77693_CHG_REG_CHG_DETAILS_01, &data) < 0) - return POWER_SUPPLY_HEALTH_UNKNOWN; + ret = regmap_read(regmap, MAX77693_CHG_REG_CHG_DETAILS_01, &data); + if (ret < 0) + return ret; data &= CHG_DETAILS_01_BAT_MASK; data >>= CHG_DETAILS_01_BAT_SHIFT; switch (data) { case MAX77693_BATTERY_NOBAT: - state = POWER_SUPPLY_HEALTH_DEAD; + *val = POWER_SUPPLY_HEALTH_DEAD; break; case MAX77693_BATTERY_PREQUALIFICATION: case MAX77693_BATTERY_GOOD: case MAX77693_BATTERY_LOWVOLTAGE: - state = POWER_SUPPLY_HEALTH_GOOD; + *val = POWER_SUPPLY_HEALTH_GOOD; break; case MAX77693_BATTERY_TIMER_EXPIRED: /* * Took longer to charge than expected, charging suspended. * Damaged battery? */ - state = POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE; + *val = POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE; break; case MAX77693_BATTERY_OVERVOLTAGE: - state = POWER_SUPPLY_HEALTH_OVERVOLTAGE; + *val = POWER_SUPPLY_HEALTH_OVERVOLTAGE; break; case MAX77693_BATTERY_OVERCURRENT: - state = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE; + *val = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE; break; case MAX77693_BATTERY_RESERVED: default: - state = POWER_SUPPLY_HEALTH_UNKNOWN; + *val = POWER_SUPPLY_HEALTH_UNKNOWN; break; } - return state; + return 0; } -static int max77693_get_present(struct regmap *regmap) +static int max77693_get_present(struct regmap *regmap, int *val) { unsigned int data; + int ret; /* * Read CHG_INT_OK register. High DETBAT bit here should be * equal to value 0x0 in CHG_DETAILS_01/BAT field. */ - regmap_read(regmap, MAX77693_CHG_REG_CHG_INT_OK, &data); - if (data & CHG_INT_OK_DETBAT_MASK) - return 0; - return 1; + ret = regmap_read(regmap, MAX77693_CHG_REG_CHG_INT_OK, &data); + if (ret < 0) + return ret; + + *val = (data & CHG_INT_OK_DETBAT_MASK) ? 0 : 1; + + return 0; } -static int max77693_get_online(struct regmap *regmap) +static int max77693_get_online(struct regmap *regmap, int *val) { unsigned int data; + int ret; + + ret = regmap_read(regmap, MAX77693_CHG_REG_CHG_INT_OK, &data); + if (ret < 0) + return ret; + + *val = (data & CHG_INT_OK_CHGIN_MASK) ? 1 : 0; - regmap_read(regmap, MAX77693_CHG_REG_CHG_INT_OK, &data); - if (data & CHG_INT_OK_CHGIN_MASK) - return 1; return 0; } @@ -217,19 +228,19 @@ static int max77693_charger_get_property(struct power_supply *psy, switch (psp) { case POWER_SUPPLY_PROP_STATUS: - val->intval = max77693_get_charger_state(regmap); + ret = max77693_get_charger_state(regmap, &val->intval); break; case POWER_SUPPLY_PROP_CHARGE_TYPE: - val->intval = max77693_get_charge_type(regmap); + ret = max77693_get_charge_type(regmap, &val->intval); break; case POWER_SUPPLY_PROP_HEALTH: - val->intval = max77693_get_battery_health(regmap); + ret = max77693_get_battery_health(regmap, &val->intval); break; case POWER_SUPPLY_PROP_PRESENT: - val->intval = max77693_get_present(regmap); + ret = max77693_get_present(regmap, &val->intval); break; case POWER_SUPPLY_PROP_ONLINE: - val->intval = max77693_get_online(regmap); + ret = max77693_get_online(regmap, &val->intval); break; case POWER_SUPPLY_PROP_MODEL_NAME: val->strval = max77693_charger_model; diff --git a/drivers/power/rt5033_battery.c b/drivers/power/rt5033_battery.c index 7b898f41c595..995247af14fc 100644 --- a/drivers/power/rt5033_battery.c +++ b/drivers/power/rt5033_battery.c @@ -102,7 +102,7 @@ static enum power_supply_property rt5033_battery_props[] = { POWER_SUPPLY_PROP_CAPACITY, }; -static struct regmap_config rt5033_battery_regmap_config = { +static const struct regmap_config rt5033_battery_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = RT5033_FUEL_REG_END, |