diff options
author | 2017-05-12 12:02:21 -0700 | |
---|---|---|
committer | 2017-05-12 12:02:21 -0700 | |
commit | 6b402bdfdbafce241cb6789ae38d94f45641078c (patch) | |
tree | 9c1d78d2965f40ba7cf6916291dbaa8c86fdca12 | |
parent | Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/l... (diff) | |
parent | power: supply: cpcap-charger: Keep trickle charger bits disabled (diff) | |
download | linux-6b402bdfdbafce241cb6789ae38d94f45641078c.tar.gz linux-6b402bdfdbafce241cb6789ae38d94f45641078c.tar.bz2 linux-6b402bdfdbafce241cb6789ae38d94f45641078c.zip |
Merge tag 'for-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull more power-supply updates from Sebastian Reichel:
"The power-supply subsystem has a few more changes for the v4.12 merge
window:
- New battery driver for AXP20X and AXP22X PMICs
- Improve max17042_battery for usage on x86
- Misc small cleanups & fixes"
* tag 'for-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (34 commits)
power: supply: cpcap-charger: Keep trickle charger bits disabled
power: supply: cpcap-charger: Fix enable for 3.8V charge setting
power: supply: cpcap-charger: Fix charge voltage configuration
power: supply: cpcap-charger: Fix charger name
power: supply: twl4030-charger: make twl4030_bci_property_is_writeable static
power: supply: sbs-battery: Add alert callback
mailmap: add Sebastian Reichel
power: supply: avoid unused twl4030-madc.h
power: supply: sbs-battery: Correct supply status with current draw
power: supply: sbs-battery: Don't ignore the first external power change
power: supply: pda_power: move from timer to delayed_work
power: supply: max17042_battery: Add support for the SCOPE property
power: supply: max17042_battery: Add support for the CHARGE_NOW property
power: supply: max17042_battery: Add support for the CHARGE_FULL_DESIGN property
power: supply: max17042_battery: mAh readings depend on r_sns value
power: supply: max17042_battery: Add support for the VOLT_MIN property
power: supply: max17042_battery: Add support for the TECHNOLOGY attribute
power: supply: max17042_battery: Add external_power_changed callback
power: supply: max17042_battery: Add support for the STATUS property
power: supply: max17042_battery: Add default platform_data fallback data
...
-rw-r--r-- | .mailmap | 2 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/power/supply/axp20x_battery.txt | 20 | ||||
-rw-r--r-- | drivers/power/supply/Kconfig | 27 | ||||
-rw-r--r-- | drivers/power/supply/Makefile | 1 | ||||
-rw-r--r-- | drivers/power/supply/ab8500_charger.c | 2 | ||||
-rw-r--r-- | drivers/power/supply/axp20x_battery.c | 502 | ||||
-rw-r--r-- | drivers/power/supply/bq24190_charger.c | 149 | ||||
-rw-r--r-- | drivers/power/supply/cpcap-charger.c | 11 | ||||
-rw-r--r-- | drivers/power/supply/generic-adc-battery.c | 17 | ||||
-rw-r--r-- | drivers/power/supply/isp1704_charger.c | 4 | ||||
-rw-r--r-- | drivers/power/supply/max17042_battery.c | 181 | ||||
-rw-r--r-- | drivers/power/supply/pda_power.c | 49 | ||||
-rw-r--r-- | drivers/power/supply/power_supply_core.c | 20 | ||||
-rw-r--r-- | drivers/power/supply/rx51_battery.c | 1 | ||||
-rw-r--r-- | drivers/power/supply/sbs-battery.c | 57 | ||||
-rw-r--r-- | drivers/power/supply/twl4030_charger.c | 95 | ||||
-rw-r--r-- | drivers/power/supply/twl4030_madc_battery.c | 1 | ||||
-rw-r--r-- | include/linux/power/max17042_battery.h | 9 |
18 files changed, 975 insertions, 173 deletions
@@ -146,6 +146,8 @@ Santosh Shilimkar <ssantosh@kernel.org> 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> diff --git a/Documentation/devicetree/bindings/power/supply/axp20x_battery.txt b/Documentation/devicetree/bindings/power/supply/axp20x_battery.txt new file mode 100644 index 000000000000..c24886676a60 --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/axp20x_battery.txt @@ -0,0 +1,20 @@ +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"; + } +}; diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig index da922756149f..86f40bf37c34 100644 --- a/drivers/power/supply/Kconfig +++ b/drivers/power/supply/Kconfig @@ -238,6 +238,26 @@ config CHARGER_AXP20X 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 @@ -541,11 +561,4 @@ config CHARGER_RT9455 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 diff --git a/drivers/power/supply/Makefile b/drivers/power/supply/Makefile index 39fc733e6cc4..a39126d7a6ce 100644 --- a/drivers/power/supply/Makefile +++ b/drivers/power/supply/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_TEST_POWER) += test_power.o obj-$(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 diff --git a/drivers/power/supply/ab8500_charger.c b/drivers/power/supply/ab8500_charger.c index 5cee9aa87aa3..4ebbcce45c48 100644 --- a/drivers/power/supply/ab8500_charger.c +++ b/drivers/power/supply/ab8500_charger.c @@ -3238,7 +3238,7 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) 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; } } diff --git a/drivers/power/supply/axp20x_battery.c b/drivers/power/supply/axp20x_battery.c new file mode 100644 index 000000000000..5d29b2eab8fc --- /dev/null +++ b/drivers/power/supply/axp20x_battery.c @@ -0,0 +1,502 @@ +/* + * 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"); diff --git a/drivers/power/supply/bq24190_charger.c b/drivers/power/supply/bq24190_charger.c index bd9e5c3d8cc2..d5a707e14526 100644 --- a/drivers/power/supply/bq24190_charger.c +++ b/drivers/power/supply/bq24190_charger.c @@ -533,6 +533,9 @@ static int bq24190_register_reset(struct bq24190_dev_info *bdi) 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, @@ -659,22 +662,25 @@ static int bq24190_charger_get_health(struct bq24190_dev_info *bdi, 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 @@ -691,9 +697,19 @@ static int bq24190_charger_get_health(struct bq24190_dev_info *bdi, 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; @@ -704,19 +720,59 @@ static int bq24190_charger_get_health(struct bq24190_dev_info *bdi, 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) { @@ -831,6 +887,12 @@ static int bq24190_charger_get_property(struct power_supply *psy, 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; @@ -879,6 +941,12 @@ static int bq24190_charger_set_property(struct power_supply *psy, 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; @@ -904,6 +972,8 @@ static int bq24190_charger_property_is_writeable(struct power_supply *psy, 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: @@ -920,6 +990,8 @@ static enum power_supply_property bq24190_charger_properties[] = { 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, @@ -1093,6 +1165,7 @@ static int bq24190_battery_get_property(struct power_supply *psy, 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); @@ -1138,6 +1211,7 @@ static int bq24190_battery_set_property(struct power_supply *psy, 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); @@ -1266,9 +1340,9 @@ static void bq24190_check_status(struct bq24190_dev_info *bdi) 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); @@ -1473,19 +1547,23 @@ static int bq24190_probe(struct i2c_client *client, 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; @@ -1523,10 +1601,9 @@ static int bq24190_probe(struct i2c_client *client, 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: @@ -1549,7 +1626,8 @@ static int bq24190_remove(struct i2c_client *client) 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); @@ -1636,7 +1714,8 @@ static __maybe_unused int bq24190_pm_resume(struct device *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; } diff --git a/drivers/power/supply/cpcap-charger.c b/drivers/power/supply/cpcap-charger.c index 543a1bd21ab9..26a2dc7ac9a2 100644 --- a/drivers/power/supply/cpcap-charger.c +++ b/drivers/power/supply/cpcap-charger.c @@ -76,7 +76,7 @@ #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) @@ -262,7 +262,7 @@ static int cpcap_charger_set_state(struct cpcap_charger_ddata *ddata, 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) { @@ -433,9 +433,8 @@ static void cpcap_usb_detect(struct work_struct *work) 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 { @@ -566,7 +565,7 @@ out_err: } 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), diff --git a/drivers/power/supply/generic-adc-battery.c b/drivers/power/supply/generic-adc-battery.c index edb36bf781b0..37e523374fe0 100644 --- a/drivers/power/supply/generic-adc-battery.c +++ b/drivers/power/supply/generic-adc-battery.c @@ -383,8 +383,7 @@ static int gab_remove(struct platform_device *pdev) 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); @@ -393,7 +392,7 @@ static int gab_suspend(struct device *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; @@ -407,20 +406,12 @@ static int gab_resume(struct device *dev) 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, diff --git a/drivers/power/supply/isp1704_charger.c b/drivers/power/supply/isp1704_charger.c index 4cd6899b961e..95af5f305838 100644 --- a/drivers/power/supply/isp1704_charger.c +++ b/drivers/power/supply/isp1704_charger.c @@ -418,6 +418,10 @@ static int isp1704_charger_probe(struct platform_device *pdev) 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); diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c index da7a75f82489..aecaaa2b0586 100644 --- a/drivers/power/supply/max17042_battery.c +++ b/drivers/power/supply/max17042_battery.c @@ -76,15 +76,20 @@ struct max17042_chip { }; 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, @@ -92,6 +97,7 @@ static enum power_supply_property max17042_battery_props[] = { 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, }; @@ -106,19 +112,53 @@ static int max17042_get_temperature(struct max17042_chip *chip, int *temp) 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; @@ -156,12 +196,12 @@ static int max17042_get_battery_health(struct max17042_chip *chip, int *health) 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; } @@ -183,11 +223,17 @@ static int max17042_get_property(struct power_supply *psy, 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) @@ -198,6 +244,9 @@ static int max17042_get_property(struct power_supply *psy, 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) @@ -213,6 +262,13 @@ static int max17042_get_property(struct power_supply *psy, 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); @@ -252,12 +308,32 @@ static int max17042_get_property(struct power_supply *psy, 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); @@ -276,14 +352,14 @@ static int max17042_get_property(struct power_supply *psy, 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; @@ -296,19 +372,16 @@ static int max17042_get_property(struct power_supply *psy, 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; @@ -320,13 +393,7 @@ static int max17042_get_property(struct power_supply *psy, 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; @@ -401,6 +468,11 @@ static int max17042_property_is_writeable(struct power_supply *psy, 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; @@ -790,8 +862,9 @@ static void max17042_init_worker(struct work_struct *work) #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; @@ -824,10 +897,55 @@ max17042_get_pdata(struct device *dev) 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 @@ -843,6 +961,7 @@ static const struct power_supply_desc max17042_psy_desc = { .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), }; @@ -876,20 +995,20 @@ static int max17042_probe(struct i2c_client *client, 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, diff --git a/drivers/power/supply/pda_power.c b/drivers/power/supply/pda_power.c index dfe1ee89f7c7..922a86787c5c 100644 --- a/drivers/power/supply/pda_power.c +++ b/drivers/power/supply/pda_power.c @@ -30,9 +30,9 @@ static inline unsigned int get_irq_flags(struct resource *res) 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; @@ -140,7 +140,7 @@ static void update_charger(void) } } -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; @@ -161,11 +161,12 @@ static void psy_changed(void) * 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(); @@ -184,13 +185,14 @@ static irqreturn_t power_changed_isr(int irq, void *power_supply) * 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; @@ -211,8 +213,9 @@ static void polling_timer_func(unsigned long unused) 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) @@ -250,8 +253,9 @@ static int otg_handle_notification(struct notifier_block *nb, * 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; } @@ -300,8 +304,8 @@ static int pda_power_probe(struct platform_device *pdev) 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"); @@ -385,9 +389,10 @@ static int pda_power_probe(struct platform_device *pdev) 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) @@ -433,9 +438,9 @@ static int pda_power_remove(struct platform_device *pdev) 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); diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c index 1e0960b646e8..7ec7c7c202bd 100644 --- a/drivers/power/supply/power_supply_core.c +++ b/drivers/power/supply/power_supply_core.c @@ -280,13 +280,19 @@ static inline int power_supply_check_supplies(struct power_supply *psy) } #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; @@ -296,12 +302,16 @@ static int __power_supply_am_i_supplied(struct device *dev, void *data) 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; } diff --git a/drivers/power/supply/rx51_battery.c b/drivers/power/supply/rx51_battery.c index af9383d23d12..5654708b1279 100644 --- a/drivers/power/supply/rx51_battery.c +++ b/drivers/power/supply/rx51_battery.c @@ -23,7 +23,6 @@ #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> diff --git a/drivers/power/supply/sbs-battery.c b/drivers/power/supply/sbs-battery.c index 8bb2eb38eb1c..e3a114e60f1a 100644 --- a/drivers/power/supply/sbs-battery.c +++ b/drivers/power/supply/sbs-battery.c @@ -171,7 +171,6 @@ struct sbs_info { u32 i2c_retry_count; u32 poll_retry_count; struct delayed_work work; - int ignore_changes; }; static char model_name[I2C_SMBUS_BLOCK_MAX + 1]; @@ -296,6 +295,31 @@ static int sbs_write_word_data(struct i2c_client *client, u8 address, 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) @@ -402,6 +426,8 @@ static int sbs_get_battery_property(struct i2c_client *client, 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) { @@ -675,30 +701,34 @@ done: 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); @@ -727,6 +757,8 @@ static void sbs_delayed_work(struct work_struct *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); @@ -775,10 +807,6 @@ static int sbs_probe(struct i2c_client *client, 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, @@ -820,7 +848,7 @@ static int sbs_probe(struct i2c_client *client, } 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); @@ -917,6 +945,7 @@ MODULE_DEVICE_TABLE(of, sbs_dt_ids); static struct i2c_driver sbs_battery_driver = { .probe = sbs_probe, .remove = sbs_remove, + .alert = sbs_alert, .id_table = sbs_id, .driver = { .name = "sbs-battery", diff --git a/drivers/power/supply/twl4030_charger.c b/drivers/power/supply/twl4030_charger.c index 990ff3d218bc..2f82d0e9ec1b 100644 --- a/drivers/power/supply/twl4030_charger.c +++ b/drivers/power/supply/twl4030_charger.c @@ -206,35 +206,6 @@ static int twl4030bci_read_adc_val(u8 reg) } /* - * 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 @@ -922,6 +893,28 @@ static int twl4030_bci_get_property(struct power_supply *psy, 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; } @@ -929,11 +922,44 @@ static int twl4030_bci_get_property(struct power_supply *psy, 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 @@ -970,6 +996,8 @@ static const struct power_supply_desc twl4030_bci_ac_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 const struct power_supply_desc twl4030_bci_usb_desc = { @@ -978,6 +1006,8 @@ 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) @@ -1009,13 +1039,6 @@ 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, diff --git a/drivers/power/supply/twl4030_madc_battery.c b/drivers/power/supply/twl4030_madc_battery.c index f5817e422d64..4d41acb98576 100644 --- a/drivers/power/supply/twl4030_madc_battery.c +++ b/drivers/power/supply/twl4030_madc_battery.c @@ -17,7 +17,6 @@ #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> diff --git a/include/linux/power/max17042_battery.h b/include/linux/power/max17042_battery.h index 522757ac9cd4..a7ed29baf44a 100644 --- a/include/linux/power/max17042_battery.h +++ b/include/linux/power/max17042_battery.h @@ -24,8 +24,15 @@ #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 |