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power supply and reset changes for the v4.14 series

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* New chip/feature support
  - bq27xxx: support updating battery config from DT
  - bq24190: support loading battery charge info from DT
  - LTC2941: add LTC2942/LTC2944 support
  - max17042: add ACPI support
  - max1721x: new driver
 * Misc
  - Move bq27xxx w1 driver from w1 into power-supply subsystem
  - Introduce power_supply_set_input_current_limit_from_supplier
  - constify stuff
  - some minor fixes
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Merge tag 'for-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset changes from Sebastian Reichel:
 "New chip/feature support:
   - bq27xxx: support updating battery config from DT
   - bq24190: support loading battery charge info from DT
   - LTC2941: add LTC2942/LTC2944 support
   - max17042: add ACPI support
   - max1721x: new driver

  Misc:
   - Move bq27xxx w1 driver from w1 into power-supply subsystem
   - Introduce power_supply_set_input_current_limit_from_supplier
   - constify stuff
   - some minor fixes"

* tag 'for-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (39 commits)
  power: supply: bq27xxx: enable writing capacity values for bq27421
  power: supply: bq24190_charger: Get input_current_limit from our supplier
  power: supply: bq24190_charger: Export 5V boost converter as regulator
  power: supply: bq24190_charger: Add power_supply_battery_info support
  power: supply: bq24190_charger: Add property system-minimum-microvolt
  power: supply: bq24190_charger: Enable devicetree config
  dt-bindings: power: supply: Add docs for TI BQ24190 battery charger
  power: supply: bq27xxx: Remove duplicate chip data arrays
  power: supply: bq27xxx: Enable data memory update for certain chips
  power: supply: bq27xxx: Add chip IDs for previously shadowed chips
  power: supply: bq27xxx: Create single chip data table
  power: supply: bq24190_charger: Add ti,bq24192i to devicetree table
  power: supply: bq24190_charger: Add input_current_limit property
  power: supply: Add power_supply_set_input_current_limit_from_supplier helper
  power: supply: max17042_battery: Fix compiler warning
  power: supply: core: Delete two error messages for a failed memory allocation in power_supply_check_supplies()
  power: supply: make device_attribute const
  power: supply: max17042_battery: Fix ACPI interrupt issues
  power: supply: max17042_battery: Add support for ACPI enumeration
  power: supply: lp8788: Make several arrays static const * const
  ...
tirimbino
Linus Torvalds 7 years ago
parent 7151202b64 5d01fd38a3
commit 0ce5c79f38
27 changed files with 1471 additions and 638 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 51
      Documentation/devicetree/bindings/power/supply/bq24190.txt
  2. 15
      Documentation/devicetree/bindings/power/supply/ltc2941.txt
  3. 4
      drivers/power/reset/at91-sama5d2_shdwc.c
  4. 23
      drivers/power/supply/Kconfig
  5. 2
      drivers/power/supply/Makefile
  6. 4
      drivers/power/supply/act8945a_charger.c
  7. 346
      drivers/power/supply/bq24190_charger.c
  8. 575
      drivers/power/supply/bq27xxx_battery.c
  9. 135
      drivers/power/supply/bq27xxx_battery_hdq.c
  10. 16
      drivers/power/supply/bq27xxx_battery_i2c.c
  11. 9
      drivers/power/supply/charger-manager.c
  12. 4
      drivers/power/supply/ds2780_battery.c
  13. 4
      drivers/power/supply/ds2781_battery.c
  14. 18
      drivers/power/supply/lp8788-charger.c
  15. 156
      drivers/power/supply/ltc2941-battery-gauge.c
  16. 42
      drivers/power/supply/max17042_battery.c
  17. 448
      drivers/power/supply/max1721x_battery.c
  18. 4
      drivers/power/supply/olpc_battery.c
  19. 2
      drivers/power/supply/pcf50633-charger.c
  20. 54
      drivers/power/supply/power_supply_core.c
  21. 26
      drivers/power/supply/sbs-battery.c
  22. 6
      drivers/w1/slaves/Kconfig
  23. 1
      drivers/w1/slaves/Makefile
  24. 117
      drivers/w1/slaves/w1_bq27000.c
  25. 18
      include/linux/power/bq24190_charger.h
  26. 27
      include/linux/power/bq27xxx_battery.h
  27. 2
      include/linux/power_supply.h

51
Documentation/devicetree/bindings/power/supply/bq24190.txt
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@ -0,0 +1,51 @@
TI BQ24190 Li-Ion Battery Charger
Required properties:
- compatible: contains one of the following:
* "ti,bq24190"
* "ti,bq24192i"
- reg: integer, I2C address of the charger.
- interrupts[-extended]: configuration for charger INT pin.
Optional properties:
- monitored-battery: phandle of battery characteristics devicetree node
The charger uses the following battery properties:
+ precharge-current-microamp: maximum charge current during precharge
phase (typically 20% of battery capacity).
+ charge-term-current-microamp: a charge cycle terminates when the
battery voltage is above recharge threshold, and the current is below
this setting (typically 10% of battery capacity).
See also Documentation/devicetree/bindings/power/supply/battery.txt
- ti,system-minimum-microvolt: when power is connected and the battery is below
minimum system voltage, the system will be regulated above this setting.
Notes:
- Some circuit boards wire the chip's "OTG" pin high (enabling 500mA default
charge current on USB SDP ports, among other features). To simulate this on
boards that wire the pin to a GPIO, set a gpio-hog.
Example:
bat: battery {
compatible = "simple-battery";
precharge-current-microamp = <256000>;
charge-term-current-microamp = <128000>;
// etc.
};
bq24190: charger@6a {
compatible = "ti,bq24190";
reg = <0x6a>;
interrupts-extended = <&gpiochip 10 IRQ_TYPE_EDGE_FALLING>;
monitored-battery = <&bat>;
ti,system-minimum-microvolt = <3200000>;
};
&twl_gpio {
otg {
gpio-hog;
gpios = <6 0>;
output-high;
line-name = "otg-gpio";
};
};

15
Documentation/devicetree/bindings/power/supply/ltc2941.txt
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@ -1,13 +1,14 @@
binding for LTC2941 and LTC2943 battery gauges
binding for LTC2941, LTC2942, LTC2943 and LTC2944 battery gauges
Both the LTC2941 and LTC2943 measure battery capacity.
The LTC2943 is compatible with the LTC2941, it adds voltage and
temperature monitoring, and uses a slightly different conversion
formula for the charge counter.
All chips measure battery capacity.
The LTC2942 is pin compatible with the LTC2941, it adds voltage and
temperature monitoring, and is runtime detected. LTC2943 and LTC2944
is software compatible, uses a slightly different conversion formula
for the charge counter and adds voltage, current and temperature monitoring.
Required properties:
- compatible: Should contain "lltc,ltc2941" or "lltc,ltc2943" which also
indicates the type of I2C chip attached.
- compatible: Should contain "lltc,ltc2941", "lltc,ltc2942", "lltc,ltc2943"
or "lltc,ltc2944" which also indicates the type of I2C chip attached.
- reg: The 7-bit I2C address.
- lltc,resistor-sense: The sense resistor value in milli-ohms. Can be a 32-bit
negative value when the battery has been connected to the wrong end of the

4
drivers/power/reset/at91-sama5d2_shdwc.c
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@ -171,8 +171,8 @@ static u32 at91_shdwc_get_wakeup_input(struct platform_device *pdev,
for_each_child_of_node(np, cnp) {
if (of_property_read_u32(cnp, "reg", &wk_input)) {
dev_warn(&pdev->dev, "reg property is missing for %s\n",
cnp->full_name);
dev_warn(&pdev->dev, "reg property is missing for %pOF\n",
cnp);
continue;
}

23
drivers/power/supply/Kconfig
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@ -198,6 +198,15 @@ config BATTERY_BQ27XXX_I2C
Say Y here to enable support for batteries with BQ27xxx chips
connected over an I2C bus.
config BATTERY_BQ27XXX_HDQ
tristate "BQ27xxx HDQ support"
depends on BATTERY_BQ27XXX
depends on W1
default y
help
Say Y here to enable support for batteries with BQ27xxx chips
connected over an HDQ bus.
config BATTERY_BQ27XXX_DT_UPDATES_NVM
bool "BQ27xxx support for update of NVM/flash data memory"
depends on BATTERY_BQ27XXX_I2C
@ -313,6 +322,19 @@ config BATTERY_MAX17042
with MAX17042. This driver also supports max17047/50 chips which are
improved version of max17042.
config BATTERY_MAX1721X
tristate "MAX17211/MAX17215 standalone gas-gauge"
depends on W1
select REGMAP_W1
help
MAX1721x is fuel-gauge systems for lithium-ion (Li+) batteries
in handheld and portable equipment. MAX17211 used with single cell
battery. MAX17215 designed for muticell battery. Both them have
OneWire (W1) host interface.
Say Y here to enable support for the MAX17211/MAX17215 standalone
battery gas-gauge.
config BATTERY_Z2
tristate "Z2 battery driver"
depends on I2C && MACH_ZIPIT2
@ -365,6 +387,7 @@ config BATTERY_RX51
config CHARGER_CPCAP
tristate "CPCAP PMIC Charger Driver"
depends on MFD_CPCAP && IIO
depends on OMAP_USB2 || (!OMAP_USB2 && COMPILE_TEST)
default MFD_CPCAP
help
Say Y to enable support for CPCAP PMIC charger driver for Motorola

2
drivers/power/supply/Makefile
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@ -38,12 +38,14 @@ obj-$(CONFIG_BATTERY_SBS) += sbs-battery.o
obj-$(CONFIG_CHARGER_SBS) += sbs-charger.o
obj-$(CONFIG_BATTERY_BQ27XXX) += bq27xxx_battery.o
obj-$(CONFIG_BATTERY_BQ27XXX_I2C) += bq27xxx_battery_i2c.o
obj-$(CONFIG_BATTERY_BQ27XXX_HDQ) += bq27xxx_battery_hdq.o
obj-$(CONFIG_BATTERY_DA9030) += da9030_battery.o
obj-$(CONFIG_BATTERY_DA9052) += da9052-battery.o
obj-$(CONFIG_CHARGER_DA9150) += da9150-charger.o
obj-$(CONFIG_BATTERY_DA9150) += da9150-fg.o
obj-$(CONFIG_BATTERY_MAX17040) += max17040_battery.o
obj-$(CONFIG_BATTERY_MAX17042) += max17042_battery.o
obj-$(CONFIG_BATTERY_MAX1721X) += max1721x_battery.o
obj-$(CONFIG_BATTERY_Z2) += z2_battery.o
obj-$(CONFIG_BATTERY_RT5033) += rt5033_battery.o
obj-$(CONFIG_CHARGER_RT9455) += rt9455_charger.o

4
drivers/power/supply/act8945a_charger.c
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@ -596,9 +596,9 @@ static int act8945a_charger_probe(struct platform_device *pdev)
return ret;
irq = of_irq_get(pdev->dev.of_node, 0);
if (irq == -EPROBE_DEFER) {
if (irq <= 0) {
dev_err(&pdev->dev, "failed to find IRQ number\n");
return -EPROBE_DEFER;
return irq ?: -ENXIO;
}
ret = devm_request_irq(&pdev->dev, irq, act8945a_status_changed,

346
drivers/power/supply/bq24190_charger.c
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@ -16,6 +16,9 @@
#include <linux/of_device.h>
#include <linux/pm_runtime.h>
#include <linux/power_supply.h>
#include <linux/power/bq24190_charger.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/workqueue.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
@ -43,6 +46,8 @@
#define BQ24190_REG_POC_CHG_CONFIG_OTG 0x2
#define BQ24190_REG_POC_SYS_MIN_MASK (BIT(3) | BIT(2) | BIT(1))
#define BQ24190_REG_POC_SYS_MIN_SHIFT 1
#define BQ24190_REG_POC_SYS_MIN_MIN 3000
#define BQ24190_REG_POC_SYS_MIN_MAX 3700
#define BQ24190_REG_POC_BOOST_LIM_MASK BIT(0)
#define BQ24190_REG_POC_BOOST_LIM_SHIFT 0
@ -57,9 +62,13 @@
#define BQ24190_REG_PCTCC_IPRECHG_MASK (BIT(7) | BIT(6) | BIT(5) | \
BIT(4))
#define BQ24190_REG_PCTCC_IPRECHG_SHIFT 4
#define BQ24190_REG_PCTCC_IPRECHG_MIN 128
#define BQ24190_REG_PCTCC_IPRECHG_MAX 2048
#define BQ24190_REG_PCTCC_ITERM_MASK (BIT(3) | BIT(2) | BIT(1) | \
BIT(0))
#define BQ24190_REG_PCTCC_ITERM_SHIFT 0
#define BQ24190_REG_PCTCC_ITERM_MIN 128
#define BQ24190_REG_PCTCC_ITERM_MAX 2048
#define BQ24190_REG_CVC 0x04 /* Charge Voltage Control */
#define BQ24190_REG_CVC_VREG_MASK (BIT(7) | BIT(6) | BIT(5) | \
@ -156,9 +165,13 @@ struct bq24190_dev_info {
struct extcon_dev *extcon;
struct notifier_block extcon_nb;
struct delayed_work extcon_work;
struct delayed_work input_current_limit_work;
char model_name[I2C_NAME_SIZE];
bool initialized;
bool irq_event;
u16 sys_min;
u16 iprechg;
u16 iterm;
struct mutex f_reg_lock;
u8 f_reg;
u8 ss_reg;
@ -504,15 +517,112 @@ static int bq24190_sysfs_create_group(struct bq24190_dev_info *bdi)
static inline void bq24190_sysfs_remove_group(struct bq24190_dev_info *bdi) {}
#endif
/*
* According to the "Host Mode and default Mode" section of the
* manual, a write to any register causes the bq24190 to switch
* from default mode to host mode. It will switch back to default
* mode after a WDT timeout unless the WDT is turned off as well.
* So, by simply turning off the WDT, we accomplish both with the
* same write.
*/
static int bq24190_set_mode_host(struct bq24190_dev_info *bdi)
#ifdef CONFIG_REGULATOR
static int bq24190_set_charge_mode(struct regulator_dev *dev, u8 val)
{
struct bq24190_dev_info *bdi = rdev_get_drvdata(dev);
int ret;
ret = pm_runtime_get_sync(bdi->dev);
if (ret < 0) {
dev_warn(bdi->dev, "pm_runtime_get failed: %i\n", ret);
pm_runtime_put_noidle(bdi->dev);
return ret;
}
ret = bq24190_write_mask(bdi, BQ24190_REG_POC,
BQ24190_REG_POC_CHG_CONFIG_MASK,
BQ24190_REG_POC_CHG_CONFIG_SHIFT, val);
pm_runtime_mark_last_busy(bdi->dev);
pm_runtime_put_autosuspend(bdi->dev);
return ret;
}
static int bq24190_vbus_enable(struct regulator_dev *dev)
{
return bq24190_set_charge_mode(dev, BQ24190_REG_POC_CHG_CONFIG_OTG);
}
static int bq24190_vbus_disable(struct regulator_dev *dev)
{
return bq24190_set_charge_mode(dev, BQ24190_REG_POC_CHG_CONFIG_CHARGE);
}
static int bq24190_vbus_is_enabled(struct regulator_dev *dev)
{
struct bq24190_dev_info *bdi = rdev_get_drvdata(dev);
int ret;
u8 val;
ret = pm_runtime_get_sync(bdi->dev);
if (ret < 0) {
dev_warn(bdi->dev, "pm_runtime_get failed: %i\n", ret);
pm_runtime_put_noidle(bdi->dev);
return ret;
}
ret = bq24190_read_mask(bdi, BQ24190_REG_POC,
BQ24190_REG_POC_CHG_CONFIG_MASK,
BQ24190_REG_POC_CHG_CONFIG_SHIFT, &val);
pm_runtime_mark_last_busy(bdi->dev);
pm_runtime_put_autosuspend(bdi->dev);
return ret ? ret : val == BQ24190_REG_POC_CHG_CONFIG_OTG;
}
static const struct regulator_ops bq24190_vbus_ops = {
.enable = bq24190_vbus_enable,
.disable = bq24190_vbus_disable,
.is_enabled = bq24190_vbus_is_enabled,
};
static const struct regulator_desc bq24190_vbus_desc = {
.name = "usb_otg_vbus",
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.ops = &bq24190_vbus_ops,
.fixed_uV = 5000000,
.n_voltages = 1,
};
static const struct regulator_init_data bq24190_vbus_init_data = {
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
};
static int bq24190_register_vbus_regulator(struct bq24190_dev_info *bdi)
{
struct bq24190_platform_data *pdata = bdi->dev->platform_data;
struct regulator_config cfg = { };
struct regulator_dev *reg;
int ret = 0;
cfg.dev = bdi->dev;
if (pdata && pdata->regulator_init_data)
cfg.init_data = pdata->regulator_init_data;
else
cfg.init_data = &bq24190_vbus_init_data;
cfg.driver_data = bdi;
reg = devm_regulator_register(bdi->dev, &bq24190_vbus_desc, &cfg);
if (IS_ERR(reg)) {
ret = PTR_ERR(reg);
dev_err(bdi->dev, "Can't register regulator: %d\n", ret);
}
return ret;
}
#else
static int bq24190_register_vbus_regulator(struct bq24190_dev_info *bdi)
{
return 0;
}
#endif
static int bq24190_set_config(struct bq24190_dev_info *bdi)
{
int ret;
u8 v;
@ -523,9 +633,52 @@ static int bq24190_set_mode_host(struct bq24190_dev_info *bdi)
bdi->watchdog = ((v & BQ24190_REG_CTTC_WATCHDOG_MASK) >>
BQ24190_REG_CTTC_WATCHDOG_SHIFT);
/*
* According to the "Host Mode and default Mode" section of the
* manual, a write to any register causes the bq24190 to switch
* from default mode to host mode. It will switch back to default
* mode after a WDT timeout unless the WDT is turned off as well.
* So, by simply turning off the WDT, we accomplish both with the
* same write.
*/
v &= ~BQ24190_REG_CTTC_WATCHDOG_MASK;
return bq24190_write(bdi, BQ24190_REG_CTTC, v);
ret = bq24190_write(bdi, BQ24190_REG_CTTC, v);
if (ret < 0)
return ret;
if (bdi->sys_min) {
v = bdi->sys_min / 100 - 30; // manual section 9.5.1.2, table 9
ret = bq24190_write_mask(bdi, BQ24190_REG_POC,
BQ24190_REG_POC_SYS_MIN_MASK,
BQ24190_REG_POC_SYS_MIN_SHIFT,
v);
if (ret < 0)
return ret;
}
if (bdi->iprechg) {
v = bdi->iprechg / 128 - 1; // manual section 9.5.1.4, table 11
ret = bq24190_write_mask(bdi, BQ24190_REG_PCTCC,
BQ24190_REG_PCTCC_IPRECHG_MASK,
BQ24190_REG_PCTCC_IPRECHG_SHIFT,
v);
if (ret < 0)
return ret;
}
if (bdi->iterm) {
v = bdi->iterm / 128 - 1; // manual section 9.5.1.4, table 11
ret = bq24190_write_mask(bdi, BQ24190_REG_PCTCC,
BQ24190_REG_PCTCC_ITERM_MASK,
BQ24190_REG_PCTCC_ITERM_SHIFT,
v);
if (ret < 0)
return ret;
}
return 0;
}
static int bq24190_register_reset(struct bq24190_dev_info *bdi)
@ -773,6 +926,38 @@ static int bq24190_charger_set_temp_alert_max(struct bq24190_dev_info *bdi,
return bq24190_battery_set_temp_alert_max(bdi, val);
}
static int bq24190_charger_get_precharge(struct bq24190_dev_info *bdi,
union power_supply_propval *val)
{
u8 v;
int ret;
ret = bq24190_read_mask(bdi, BQ24190_REG_PCTCC,
BQ24190_REG_PCTCC_IPRECHG_MASK,
BQ24190_REG_PCTCC_IPRECHG_SHIFT, &v);
if (ret < 0)
return ret;
val->intval = ++v * 128 * 1000;
return 0;
}
static int bq24190_charger_get_charge_term(struct bq24190_dev_info *bdi,
union power_supply_propval *val)
{
u8 v;
int ret;
ret = bq24190_read_mask(bdi, BQ24190_REG_PCTCC,
BQ24190_REG_PCTCC_ITERM_MASK,
BQ24190_REG_PCTCC_ITERM_SHIFT, &v);
if (ret < 0)
return ret;
val->intval = ++v * 128 * 1000;
return 0;
}
static int bq24190_charger_get_current(struct bq24190_dev_info *bdi,
union power_supply_propval *val)
{
@ -865,6 +1050,33 @@ static int bq24190_charger_set_voltage(struct bq24190_dev_info *bdi,
ARRAY_SIZE(bq24190_cvc_vreg_values), val->intval);
}
static int bq24190_charger_get_iinlimit(struct bq24190_dev_info *bdi,
union power_supply_propval *val)
{
int iinlimit, ret;
ret = bq24190_get_field_val(bdi, BQ24190_REG_ISC,
BQ24190_REG_ISC_IINLIM_MASK,
BQ24190_REG_ISC_IINLIM_SHIFT,
bq24190_isc_iinlim_values,
ARRAY_SIZE(bq24190_isc_iinlim_values), &iinlimit);
if (ret < 0)
return ret;
val->intval = iinlimit;
return 0;
}
static int bq24190_charger_set_iinlimit(struct bq24190_dev_info *bdi,
const union power_supply_propval *val)
{
return bq24190_set_field_val(bdi, BQ24190_REG_ISC,
BQ24190_REG_ISC_IINLIM_MASK,
BQ24190_REG_ISC_IINLIM_SHIFT,
bq24190_isc_iinlim_values,
ARRAY_SIZE(bq24190_isc_iinlim_values), val->intval);
}
static int bq24190_charger_get_property(struct power_supply *psy,
enum power_supply_property psp, union power_supply_propval *val)
{
@ -893,6 +1105,12 @@ static int bq24190_charger_get_property(struct power_supply *psy,
case POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
ret = bq24190_charger_get_temp_alert_max(bdi, val);
break;
case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
ret = bq24190_charger_get_precharge(bdi, val);
break;
case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
ret = bq24190_charger_get_charge_term(bdi, val);
break;
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
ret = bq24190_charger_get_current(bdi, val);
break;
@ -905,6 +1123,9 @@ static int bq24190_charger_get_property(struct power_supply *psy,
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
ret = bq24190_charger_get_voltage_max(bdi, val);
break;
case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
ret = bq24190_charger_get_iinlimit(bdi, val);
break;
case POWER_SUPPLY_PROP_SCOPE:
val->intval = POWER_SUPPLY_SCOPE_SYSTEM;
ret = 0;
@ -956,6 +1177,9 @@ static int bq24190_charger_set_property(struct power_supply *psy,
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
ret = bq24190_charger_set_voltage(bdi, val);
break;
case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
ret = bq24190_charger_set_iinlimit(bdi, val);
break;
default:
ret = -EINVAL;
}
@ -977,6 +1201,7 @@ static int bq24190_charger_property_is_writeable(struct power_supply *psy,
case POWER_SUPPLY_PROP_CHARGE_TYPE:
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
ret = 1;
break;
default:
@ -986,16 +1211,45 @@ static int bq24190_charger_property_is_writeable(struct power_supply *psy,
return ret;
}
static void bq24190_input_current_limit_work(struct work_struct *work)
{
struct bq24190_dev_info *bdi =
container_of(work, struct bq24190_dev_info,
input_current_limit_work.work);
power_supply_set_input_current_limit_from_supplier(bdi->charger);
}
/* Sync the input-current-limit with our parent supply (if we have one) */
static void bq24190_charger_external_power_changed(struct power_supply *psy)
{
struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy);
/*
* The Power-Good detection may take up to 220ms, sometimes
* the external charger detection is quicker, and the bq24190 will
* reset to iinlim based on its own charger detection (which is not
* hooked up when using external charger detection) resulting in a
* too low default 500mA iinlim. Delay setting the input-current-limit
* for 300ms to avoid this.
*/
queue_delayed_work(system_wq, &bdi->input_current_limit_work,
msecs_to_jiffies(300));
}
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_PRECHARGE_CURRENT,
POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER,
@ -1013,6 +1267,7 @@ static const struct power_supply_desc bq24190_charger_desc = {
.get_property = bq24190_charger_get_property,
.set_property = bq24190_charger_set_property,
.property_is_writeable = bq24190_charger_property_is_writeable,
.external_power_changed = bq24190_charger_external_power_changed,
};
/* Battery power supply property routines */
@ -1460,13 +1715,50 @@ static int bq24190_hw_init(struct bq24190_dev_info *bdi)
if (ret < 0)
return ret;
ret = bq24190_set_mode_host(bdi);
ret = bq24190_set_config(bdi);
if (ret < 0)
return ret;
return bq24190_read(bdi, BQ24190_REG_SS, &bdi->ss_reg);
}
static int bq24190_get_config(struct bq24190_dev_info *bdi)
{
const char * const s = "ti,system-minimum-microvolt";
struct power_supply_battery_info info = {};
int v;
if (device_property_read_u32(bdi->dev, s, &v) == 0) {
v /= 1000;
if (v >= BQ24190_REG_POC_SYS_MIN_MIN
&& v <= BQ24190_REG_POC_SYS_MIN_MAX)
bdi->sys_min = v;
else
dev_warn(bdi->dev, "invalid value for %s: %u\n", s, v);
}
if (bdi->dev->of_node &&
!power_supply_get_battery_info(bdi->charger, &info)) {
v = info.precharge_current_ua / 1000;
if (v >= BQ24190_REG_PCTCC_IPRECHG_MIN
&& v <= BQ24190_REG_PCTCC_IPRECHG_MAX)
bdi->iprechg = v;
else
dev_warn(bdi->dev, "invalid value for battery:precharge-current-microamp: %d\n",
v);
v = info.charge_term_current_ua / 1000;
if (v >= BQ24190_REG_PCTCC_ITERM_MIN
&& v <= BQ24190_REG_PCTCC_ITERM_MAX)
bdi->iterm = v;
else
dev_warn(bdi->dev, "invalid value for battery:charge-term-current-microamp: %d\n",
v);
}
return 0;
}
static int bq24190_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@ -1494,10 +1786,12 @@ static int bq24190_probe(struct i2c_client *client,
mutex_init(&bdi->f_reg_lock);
bdi->f_reg = 0;
bdi->ss_reg = BQ24190_REG_SS_VBUS_STAT_MASK; /* impossible state */
INIT_DELAYED_WORK(&bdi->input_current_limit_work,
bq24190_input_current_limit_work);
i2c_set_clientdata(client, bdi);
if (!client->irq) {
if (client->irq <= 0) {
dev_err(dev, "Can't get irq info\n");
return -EINVAL;
}
@ -1530,13 +1824,8 @@ static int bq24190_probe(struct i2c_client *client,
goto out_pmrt;
}
ret = bq24190_hw_init(bdi);
if (ret < 0) {
dev_err(dev, "Hardware init failed\n");
goto out_pmrt;
}
charger_cfg.drv_data = bdi;
charger_cfg.of_node = dev->of_node;
charger_cfg.supplied_to = bq24190_charger_supplied_to;
charger_cfg.num_supplicants = ARRAY_SIZE(bq24190_charger_supplied_to),
bdi->charger = power_supply_register(dev, &bq24190_charger_desc,
@ -1560,8 +1849,20 @@ static int bq24190_probe(struct i2c_client *client,
}
}
ret = bq24190_get_config(bdi);
if (ret < 0) {
dev_err(dev, "Can't get devicetree config\n");
goto out_charger;
}
ret = bq24190_hw_init(bdi);
if (ret < 0) {
dev_err(dev, "Hardware init failed\n");
goto out_charger;
}
ret = bq24190_sysfs_create_group(bdi);
if (ret) {
if (ret < 0) {
dev_err(dev, "Can't create sysfs entries\n");
goto out_charger;
}
@ -1577,6 +1878,10 @@ static int bq24190_probe(struct i2c_client *client,
goto out_sysfs;
}
ret = bq24190_register_vbus_regulator(bdi);
if (ret < 0)
goto out_sysfs;
if (bdi->extcon) {
INIT_DELAYED_WORK(&bdi->extcon_work, bq24190_extcon_work);
bdi->extcon_nb.notifier_call = bq24190_extcon_event;
@ -1704,7 +2009,7 @@ static __maybe_unused int bq24190_pm_resume(struct device *dev)
}
bq24190_register_reset(bdi);
bq24190_set_mode_host(bdi);
bq24190_set_config(bdi);
bq24190_read(bdi, BQ24190_REG_SS, &bdi->ss_reg);
if (error >= 0) {
@ -1736,6 +2041,7 @@ MODULE_DEVICE_TABLE(i2c, bq24190_i2c_ids);
#ifdef CONFIG_OF
static const struct of_device_id bq24190_of_match[] = {
{ .compatible = "ti,bq24190", },
{ .compatible = "ti,bq24192i", },
{ },
};
MODULE_DEVICE_TABLE(of, bq24190_of_match);

575
drivers/power/supply/bq27xxx_battery.c
Unescape View File

@ -58,8 +58,6 @@
#include <linux/power/bq27xxx_battery.h>
#define DRIVER_VERSION "1.2.0"
#define BQ27XXX_MANUFACTURER "Texas Instruments"
/* BQ27XXX Flags */
@ -132,8 +130,8 @@ enum bq27xxx_reg_index {
[BQ27XXX_DM_CKSUM] = 0x60
/* Register mappings */
static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
[BQ27000] = {
static u8
bq27000_regs[BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
@ -157,7 +155,7 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
[BQ27XXX_DM_DATA] = INVALID_REG_ADDR,
[BQ27XXX_DM_CKSUM] = INVALID_REG_ADDR,
},
[BQ27010] = {
bq27010_regs[BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
@ -181,7 +179,7 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
[BQ27XXX_DM_DATA] = INVALID_REG_ADDR,
[BQ27XXX_DM_CKSUM] = INVALID_REG_ADDR,
},
[BQ2750X] = {
bq2750x_regs[BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = 0x28,
@ -201,47 +199,9 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_AP] = INVALID_REG_ADDR,
BQ27XXX_DM_REG_ROWS,
},
[BQ2751X] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = 0x28,
[BQ27XXX_REG_VOLT] = 0x08,
[BQ27XXX_REG_AI] = 0x14,
[BQ27XXX_REG_FLAGS] = 0x0a,
[BQ27XXX_REG_TTE] = 0x16,
[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
[BQ27XXX_REG_TTES] = 0x1a,
[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
[BQ27XXX_REG_NAC] = 0x0c,
[BQ27XXX_REG_FCC] = 0x12,
[BQ27XXX_REG_CYCT] = 0x1e,
[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
[BQ27XXX_REG_SOC] = 0x20,
[BQ27XXX_REG_DCAP] = 0x2e,
[BQ27XXX_REG_AP] = INVALID_REG_ADDR,
BQ27XXX_DM_REG_ROWS,
},
[BQ27500] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
[BQ27XXX_REG_VOLT] = 0x08,
[BQ27XXX_REG_AI] = 0x14,
[BQ27XXX_REG_FLAGS] = 0x0a,
[BQ27XXX_REG_TTE] = 0x16,
[BQ27XXX_REG_TTF] = 0x18,
[BQ27XXX_REG_TTES] = 0x1c,
[BQ27XXX_REG_TTECP] = 0x26,
[BQ27XXX_REG_NAC] = 0x0c,
[BQ27XXX_REG_FCC] = 0x12,
[BQ27XXX_REG_CYCT] = 0x2a,
[BQ27XXX_REG_AE] = 0x22,
[BQ27XXX_REG_SOC] = 0x2c,
[BQ27XXX_REG_DCAP] = 0x3c,
[BQ27XXX_REG_AP] = 0x24,
BQ27XXX_DM_REG_ROWS,
},
[BQ27510G1] = {
#define bq2751x_regs bq27510g3_regs
#define bq2752x_regs bq27510g3_regs
bq27500_regs[BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
@ -261,27 +221,9 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_AP] = 0x24,
BQ27XXX_DM_REG_ROWS,
},
[BQ27510G2] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
[BQ27XXX_REG_VOLT] = 0x08,
[BQ27XXX_REG_AI] = 0x14,
[BQ27XXX_REG_FLAGS] = 0x0a,
[BQ27XXX_REG_TTE] = 0x16,
[BQ27XXX_REG_TTF] = 0x18,
[BQ27XXX_REG_TTES] = 0x1c,
[BQ27XXX_REG_TTECP] = 0x26,
[BQ27XXX_REG_NAC] = 0x0c,
[BQ27XXX_REG_FCC] = 0x12,
[BQ27XXX_REG_CYCT] = 0x2a,
[BQ27XXX_REG_AE] = 0x22,
[BQ27XXX_REG_SOC] = 0x2c,
[BQ27XXX_REG_DCAP] = 0x3c,
[BQ27XXX_REG_AP] = 0x24,
BQ27XXX_DM_REG_ROWS,
},
[BQ27510G3] = {
#define bq27510g1_regs bq27500_regs
#define bq27510g2_regs bq27500_regs
bq27510g3_regs[BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = 0x28,
@ -301,7 +243,7 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_AP] = INVALID_REG_ADDR,
BQ27XXX_DM_REG_ROWS,
},
[BQ27520G1] = {
bq27520g1_regs[BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
@ -321,7 +263,7 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_AP] = 0x24,
BQ27XXX_DM_REG_ROWS,
},
[BQ27520G2] = {
bq27520g2_regs[BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = 0x36,
@ -341,7 +283,7 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_AP] = 0x24,
BQ27XXX_DM_REG_ROWS,
},
[BQ27520G3] = {
bq27520g3_regs[BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = 0x36,
@ -361,7 +303,7 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_AP] = 0x24,
BQ27XXX_DM_REG_ROWS,
},
[BQ27520G4] = {
bq27520g4_regs[BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = 0x28,
@ -381,7 +323,7 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_AP] = INVALID_REG_ADDR,
BQ27XXX_DM_REG_ROWS,
},
[BQ27530] = {
bq27530_regs[BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = 0x32,
@ -401,7 +343,8 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_AP] = 0x24,
BQ27XXX_DM_REG_ROWS,
},
[BQ27541] = {
#define bq27531_regs bq27530_regs
bq27541_regs[BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = 0x28,
@ -421,7 +364,10 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_AP] = 0x24,
BQ27XXX_DM_REG_ROWS,
},
[BQ27545] = {
#define bq27542_regs bq27541_regs
#define bq27546_regs bq27541_regs
#define bq27742_regs bq27541_regs
bq27545_regs[BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x06,
[BQ27XXX_REG_INT_TEMP] = 0x28,
@ -441,7 +387,7 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_AP] = 0x24,
BQ27XXX_DM_REG_ROWS,
},
[BQ27421] = {
bq27421_regs[BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_CTRL] = 0x00,
[BQ27XXX_REG_TEMP] = 0x02,
[BQ27XXX_REG_INT_TEMP] = 0x1e,
@ -460,10 +406,12 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
[BQ27XXX_REG_DCAP] = 0x3c,
[BQ27XXX_REG_AP] = 0x18,
BQ27XXX_DM_REG_ROWS,
},
};
};
#define bq27425_regs bq27421_regs
#define bq27441_regs bq27421_regs
#define bq27621_regs bq27421_regs
static enum power_supply_property bq27000_battery_props[] = {
static enum power_supply_property bq27000_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
@ -485,7 +433,7 @@ static enum power_supply_property bq27000_battery_props[] = {
POWER_SUPPLY_PROP_MANUFACTURER,
};
static enum power_supply_property bq27010_battery_props[] = {
static enum power_supply_property bq27010_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
@ -505,25 +453,11 @@ static enum power_supply_property bq27010_battery_props[] = {
POWER_SUPPLY_PROP_MANUFACTURER,
};
static enum power_supply_property bq2750x_battery_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_MANUFACTURER,
};
#define bq2750x_props bq27510g3_props
#define bq2751x_props bq27510g3_props
#define bq2752x_props bq27510g3_props
static enum power_supply_property bq2751x_battery_props[] = {
static enum power_supply_property bq27500_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
@ -532,16 +466,21 @@ static enum power_supply_property bq2751x_battery_props[] = {
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_ENERGY_NOW,
POWER_SUPPLY_PROP_POWER_AVG,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_MANUFACTURER,
};
#define bq27510g1_props bq27500_props
#define bq27510g2_props bq27500_props
static enum power_supply_property bq27500_battery_props[] = {
static enum power_supply_property bq27510g3_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
@ -550,19 +489,16 @@ static enum power_supply_property bq27500_battery_props[] = {
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_ENERGY_NOW,
POWER_SUPPLY_PROP_POWER_AVG,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_MANUFACTURER,
};
static enum power_supply_property bq27510g1_battery_props[] = {
static enum power_supply_property bq27520g1_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
@ -576,14 +512,15 @@ static enum power_supply_property bq27510g1_battery_props[] = {
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_ENERGY_NOW,
POWER_SUPPLY_PROP_POWER_AVG,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_MANUFACTURER,
};
static enum power_supply_property bq27510g2_battery_props[] = {
#define bq27520g2_props bq27500_props
static enum power_supply_property bq27520g3_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
@ -592,7 +529,6 @@ static enum power_supply_property bq27510g2_battery_props[] = {
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
@ -604,7 +540,7 @@ static enum power_supply_property bq27510g2_battery_props[] = {
POWER_SUPPLY_PROP_MANUFACTURER,
};
static enum power_supply_property bq27510g3_battery_props[] = {
static enum power_supply_property bq27520g4_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
@ -616,13 +552,12 @@ static enum power_supply_property bq27510g3_battery_props[] = {
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_MANUFACTURER,
};
static enum power_supply_property bq27520g1_battery_props[] = {
static enum power_supply_property bq27530_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
@ -631,18 +566,17 @@ static enum power_supply_property bq27520g1_battery_props[] = {
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_ENERGY_NOW,
POWER_SUPPLY_PROP_POWER_AVG,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_MANUFACTURER,
};
#define bq27531_props bq27530_props
static enum power_supply_property bq27520g2_battery_props[] = {
static enum power_supply_property bq27541_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
@ -651,19 +585,20 @@ static enum power_supply_property bq27520g2_battery_props[] = {
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_ENERGY_NOW,
POWER_SUPPLY_PROP_POWER_AVG,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_MANUFACTURER,
};
#define bq27542_props bq27541_props
#define bq27546_props bq27541_props
#define bq27742_props bq27541_props
static enum power_supply_property bq27520g3_battery_props[] = {
static enum power_supply_property bq27545_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
@ -675,15 +610,13 @@ static enum power_supply_property bq27520g3_battery_props[] = {
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_ENERGY_NOW,
POWER_SUPPLY_PROP_POWER_AVG,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_MANUFACTURER,
};
static enum power_supply_property bq27520g4_battery_props[] = {
static enum power_supply_property bq27421_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
@ -691,111 +624,144 @@ static enum power_supply_property bq27520g4_battery_props[] = {
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_MANUFACTURER,
};
#define bq27425_props bq27421_props
#define bq27441_props bq27421_props
#define bq27621_props bq27421_props
static enum power_supply_property bq27530_battery_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_POWER_AVG,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_MANUFACTURER,
struct bq27xxx_dm_reg {
u8 subclass_id;
u8 offset;
u8 bytes;
u16 min, max;
};
static enum power_supply_property bq27541_battery_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_POWER_AVG,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_MANUFACTURER,
enum bq27xxx_dm_reg_id {
BQ27XXX_DM_DESIGN_CAPACITY = 0,
BQ27XXX_DM_DESIGN_ENERGY,
BQ27XXX_DM_TERMINATE_VOLTAGE,
};
static enum power_supply_property bq27545_battery_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_POWER_AVG,
POWER_SUPPLY_PROP_MANUFACTURER,
#define bq27000_dm_regs 0
#define bq27010_dm_regs 0
#define bq2750x_dm_regs 0
#define bq2751x_dm_regs 0
#define bq2752x_dm_regs 0
#if 0 /* not yet tested */
static struct bq27xxx_dm_reg bq27500_dm_regs[] = {
[BQ27XXX_DM_DESIGN_CAPACITY] = { 48, 10, 2, 0, 65535 },
[BQ27XXX_DM_DESIGN_ENERGY] = { }, /* missing on chip */
[BQ27XXX_DM_TERMINATE_VOLTAGE] = { 80, 48, 2, 1000, 32767 },
};
#else
#define bq27500_dm_regs 0
#endif
static enum power_supply_property bq27421_battery_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_MANUFACTURER,
/* todo create data memory definitions from datasheets and test on chips */
#define bq27510g1_dm_regs 0
#define bq27510g2_dm_regs 0
#define bq27510g3_dm_regs 0
#define bq27520g1_dm_regs 0
#define bq27520g2_dm_regs 0
#define bq27520g3_dm_regs 0
#define bq27520g4_dm_regs 0
#define bq27530_dm_regs 0
#define bq27531_dm_regs 0
#define bq27541_dm_regs 0
#define bq27542_dm_regs 0
#define bq27546_dm_regs 0
#define bq27742_dm_regs 0
#if 0 /* not yet tested */
static struct bq27xxx_dm_reg bq27545_dm_regs[] = {
[BQ27XXX_DM_DESIGN_CAPACITY] = { 48, 23, 2, 0, 32767 },
[BQ27XXX_DM_DESIGN_ENERGY] = { 48, 25, 2, 0, 32767 },
[BQ27XXX_DM_TERMINATE_VOLTAGE] = { 80, 67, 2, 2800, 3700 },
};
#else
#define bq27545_dm_regs 0
#endif
#define BQ27XXX_PROP(_id, _prop) \
[_id] = { \
.props = _prop, \
.size = ARRAY_SIZE(_prop), \
}
static struct bq27xxx_dm_reg bq27421_dm_regs[] = {
[BQ27XXX_DM_DESIGN_CAPACITY] = { 82, 10, 2, 0, 8000 },
[BQ27XXX_DM_DESIGN_ENERGY] = { 82, 12, 2, 0, 32767 },
[BQ27XXX_DM_TERMINATE_VOLTAGE] = { 82, 16, 2, 2500, 3700 },
};
static struct bq27xxx_dm_reg bq27425_dm_regs[] = {
[BQ27XXX_DM_DESIGN_CAPACITY] = { 82, 12, 2, 0, 32767 },
[BQ27XXX_DM_DESIGN_ENERGY] = { 82, 14, 2, 0, 32767 },
[BQ27XXX_DM_TERMINATE_VOLTAGE] = { 82, 18, 2, 2800, 3700 },
};
#if 0 /* not yet tested */
#define bq27441_dm_regs bq27421_dm_regs
#else
#define bq27441_dm_regs 0
#endif
#if 0 /* not yet tested */
static struct bq27xxx_dm_reg bq27621_dm_regs[] = {
[BQ27XXX_DM_DESIGN_CAPACITY] = { 82, 3, 2, 0, 8000 },
[BQ27XXX_DM_DESIGN_ENERGY] = { 82, 5, 2, 0, 32767 },
[BQ27XXX_DM_TERMINATE_VOLTAGE] = { 82, 9, 2, 2500, 3700 },
};
#else
#define bq27621_dm_regs 0
#endif
#define BQ27XXX_O_ZERO 0x00000001
#define BQ27XXX_O_OTDC 0x00000002
#define BQ27XXX_O_UTOT 0x00000004
#define BQ27XXX_O_CFGUP 0x00000008
#define BQ27XXX_O_RAM 0x00000010
#define BQ27XXX_DATA(ref, key, opt) { \
.opts = (opt), \
.unseal_key = key, \
.regs = ref##_regs, \
.dm_regs = ref##_dm_regs, \
.props = ref##_props, \
.props_size = ARRAY_SIZE(ref##_props) }
static struct {
u32 opts;
u32 unseal_key;
u8 *regs;
struct bq27xxx_dm_reg *dm_regs;
enum power_supply_property *props;
size_t size;
} bq27xxx_battery_props[] = {
BQ27XXX_PROP(BQ27000, bq27000_battery_props),
BQ27XXX_PROP(BQ27010, bq27010_battery_props),
BQ27XXX_PROP(BQ2750X, bq2750x_battery_props),
BQ27XXX_PROP(BQ2751X, bq2751x_battery_props),
BQ27XXX_PROP(BQ27500, bq27500_battery_props),
BQ27XXX_PROP(BQ27510G1, bq27510g1_battery_props),
BQ27XXX_PROP(BQ27510G2, bq27510g2_battery_props),
BQ27XXX_PROP(BQ27510G3, bq27510g3_battery_props),
BQ27XXX_PROP(BQ27520G1, bq27520g1_battery_props),
BQ27XXX_PROP(BQ27520G2, bq27520g2_battery_props),
BQ27XXX_PROP(BQ27520G3, bq27520g3_battery_props),
BQ27XXX_PROP(BQ27520G4, bq27520g4_battery_props),
BQ27XXX_PROP(BQ27530, bq27530_battery_props),
BQ27XXX_PROP(BQ27541, bq27541_battery_props),
BQ27XXX_PROP(BQ27545, bq27545_battery_props),
BQ27XXX_PROP(BQ27421, bq27421_battery_props),
size_t props_size;
} bq27xxx_chip_data[] = {
[BQ27000] = BQ27XXX_DATA(bq27000, 0 , BQ27XXX_O_ZERO),
[BQ27010] = BQ27XXX_DATA(bq27010, 0 , BQ27XXX_O_ZERO),
[BQ2750X] = BQ27XXX_DATA(bq2750x, 0 , BQ27XXX_O_OTDC),
[BQ2751X] = BQ27XXX_DATA(bq2751x, 0 , BQ27XXX_O_OTDC),
[BQ2752X] = BQ27XXX_DATA(bq2752x, 0 , BQ27XXX_O_OTDC),
[BQ27500] = BQ27XXX_DATA(bq27500, 0x04143672, BQ27XXX_O_OTDC),
[BQ27510G1] = BQ27XXX_DATA(bq27510g1, 0 , BQ27XXX_O_OTDC),
[BQ27510G2] = BQ27XXX_DATA(bq27510g2, 0 , BQ27XXX_O_OTDC),
[BQ27510G3] = BQ27XXX_DATA(bq27510g3, 0 , BQ27XXX_O_OTDC),
[BQ27520G1] = BQ27XXX_DATA(bq27520g1, 0 , BQ27XXX_O_OTDC),
[BQ27520G2] = BQ27XXX_DATA(bq27520g2, 0 , BQ27XXX_O_OTDC),
[BQ27520G3] = BQ27XXX_DATA(bq27520g3, 0 , BQ27XXX_O_OTDC),
[BQ27520G4] = BQ27XXX_DATA(bq27520g4, 0 , BQ27XXX_O_OTDC),
[BQ27530] = BQ27XXX_DATA(bq27530, 0 , BQ27XXX_O_UTOT),
[BQ27531] = BQ27XXX_DATA(bq27531, 0 , BQ27XXX_O_UTOT),
[BQ27541] = BQ27XXX_DATA(bq27541, 0 , BQ27XXX_O_OTDC),
[BQ27542] = BQ27XXX_DATA(bq27542, 0 , BQ27XXX_O_OTDC),
[BQ27546] = BQ27XXX_DATA(bq27546, 0 , BQ27XXX_O_OTDC),
[BQ27742] = BQ27XXX_DATA(bq27742, 0 , BQ27XXX_O_OTDC),
[BQ27545] = BQ27XXX_DATA(bq27545, 0x04143672, BQ27XXX_O_OTDC),
[BQ27421] = BQ27XXX_DATA(bq27421, 0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM),
[BQ27425] = BQ27XXX_DATA(bq27425, 0x04143672, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP),
[BQ27441] = BQ27XXX_DATA(bq27441, 0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM),
[BQ27621] = BQ27XXX_DATA(bq27621, 0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM),
};
static DEFINE_MUTEX(bq27xxx_list_lock);
@ -805,13 +771,6 @@ static LIST_HEAD(bq27xxx_battery_devices);
#define BQ27XXX_DM_SZ 32
struct bq27xxx_dm_reg {
u8 subclass_id;
u8 offset;
u8 bytes;
u16 min, max;
};
/**
* struct bq27xxx_dm_buf - chip data memory buffer
* @class: data memory subclass_id
@ -844,12 +803,6 @@ static inline u16 *bq27xxx_dm_reg_ptr(struct bq27xxx_dm_buf *buf,
return NULL;
}
enum bq27xxx_dm_reg_id {
BQ27XXX_DM_DESIGN_CAPACITY = 0,
BQ27XXX_DM_DESIGN_ENERGY,
BQ27XXX_DM_TERMINATE_VOLTAGE,
};
static const char * const bq27xxx_dm_reg_name[] = {
[BQ27XXX_DM_DESIGN_CAPACITY] = "design-capacity",
[BQ27XXX_DM_DESIGN_ENERGY] = "design-energy",
@ -1092,9 +1045,9 @@ static void bq27xxx_battery_update_dm_block(struct bq27xxx_device_info *di,
}
#ifdef CONFIG_BATTERY_BQ27XXX_DT_UPDATES_NVM
if (!di->ram_chip && !bq27xxx_dt_to_nvm) {
if (!(di->opts & BQ27XXX_O_RAM) && !bq27xxx_dt_to_nvm) {
#else
if (!di->ram_chip) {
if (!(di->opts & BQ27XXX_O_RAM)) {
#endif
/* devicetree and NVM differ; defer to NVM */
dev_warn(di->dev, "%s has %u; update to %u disallowed "
@ -1130,7 +1083,7 @@ static int bq27xxx_battery_cfgupdate_priv(struct bq27xxx_device_info *di, bool a
return ret;
} while (!!(ret & BQ27XXX_FLAG_CFGUP) != active && --try);
if (!try) {
if (!try && di->chip != BQ27425) { // 425 has a bug
dev_err(di->dev, "timed out waiting for cfgupdate flag %d\n", active);
return -EINVAL;
}
@ -1162,7 +1115,7 @@ static inline int bq27xxx_battery_soft_reset(struct bq27xxx_device_info *di)
static int bq27xxx_battery_write_dm_block(struct bq27xxx_device_info *di,
struct bq27xxx_dm_buf *buf)
{
bool cfgup = di->chip == BQ27421; /* assume related chips need cfgupdate */
bool cfgup = di->opts & BQ27XXX_O_CFGUP;
int ret;
if (!buf->dirty)
@ -1261,7 +1214,7 @@ static void bq27xxx_battery_set_config(struct bq27xxx_device_info *di,
bq27xxx_battery_seal(di);
if (updated && di->chip != BQ27421) { /* not a cfgupdate chip, so reset */
if (updated && !(di->opts & BQ27XXX_O_CFGUP)) {
bq27xxx_write(di, BQ27XXX_REG_CTRL, BQ27XXX_RESET, false);
BQ27XXX_MSLEEP(300); /* reset time is not documented */
}
@ -1328,7 +1281,7 @@ static int bq27xxx_battery_read_soc(struct bq27xxx_device_info *di)
{
int soc;
if (di->chip == BQ27000 || di->chip == BQ27010)
if (di->opts & BQ27XXX_O_ZERO)
soc = bq27xxx_read(di, BQ27XXX_REG_SOC, true);
else
soc = bq27xxx_read(di, BQ27XXX_REG_SOC, false);
@ -1354,7 +1307,7 @@ static int bq27xxx_battery_read_charge(struct bq27xxx_device_info *di, u8 reg)
return charge;
}
if (di->chip == BQ27000 || di->chip == BQ27010)
if (di->opts & BQ27XXX_O_ZERO)
charge *= BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS;
else
charge *= 1000;
@ -1370,7 +1323,7 @@ static inline int bq27xxx_battery_read_nac(struct bq27xxx_device_info *di)
{
int flags;
if (di->chip == BQ27000 || di->chip == BQ27010) {
if (di->opts & BQ27XXX_O_ZERO) {
flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, true);
if (flags >= 0 && (flags & BQ27000_FLAG_CI))
return -ENODATA;
@ -1396,7 +1349,7 @@ static int bq27xxx_battery_read_dcap(struct bq27xxx_device_info *di)
{
int dcap;
if (di->chip == BQ27000 || di->chip == BQ27010)
if (di->opts & BQ27XXX_O_ZERO)
dcap = bq27xxx_read(di, BQ27XXX_REG_DCAP, true);
else
dcap = bq27xxx_read(di, BQ27XXX_REG_DCAP, false);
@ -1406,7 +1359,7 @@ static int bq27xxx_battery_read_dcap(struct bq27xxx_device_info *di)
return dcap;
}
if (di->chip == BQ27000 || di->chip == BQ27010)
if (di->opts & BQ27XXX_O_ZERO)
dcap = (dcap << 8) * BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS;
else
dcap *= 1000;
@ -1428,7 +1381,7 @@ static int bq27xxx_battery_read_energy(struct bq27xxx_device_info *di)
return ae;
}
if (di->chip == BQ27000 || di->chip == BQ27010)
if (di->opts & BQ27XXX_O_ZERO)
ae *= BQ27XXX_POWER_CONSTANT / BQ27XXX_RS;
else
ae *= 1000;
@ -1450,7 +1403,7 @@ static int bq27xxx_battery_read_temperature(struct bq27xxx_device_info *di)
return temp;
}
if (di->chip == BQ27000 || di->chip == BQ27010)
if (di->opts & BQ27XXX_O_ZERO)
temp = 5 * temp / 2;
return temp;
@ -1507,7 +1460,7 @@ static int bq27xxx_battery_read_pwr_avg(struct bq27xxx_device_info *di)
return tval;
}
if (di->chip == BQ27000 || di->chip == BQ27010)
if (di->opts & BQ27XXX_O_ZERO)
return (tval * BQ27XXX_POWER_CONSTANT) / BQ27XXX_RS;
else
return tval;
@ -1518,26 +1471,12 @@ static int bq27xxx_battery_read_pwr_avg(struct bq27xxx_device_info *di)
*/
static bool bq27xxx_battery_overtemp(struct bq27xxx_device_info *di, u16 flags)
{
switch (di->chip) {
case BQ2750X:
case BQ2751X:
case BQ27500:
case BQ27510G1:
case BQ27510G2:
case BQ27510G3:
case BQ27520G1:
case BQ27520G2:
case BQ27520G3:
case BQ27520G4:
case BQ27541:
case BQ27545:
if (di->opts & BQ27XXX_O_OTDC)
return flags & (BQ27XXX_FLAG_OTC | BQ27XXX_FLAG_OTD);
case BQ27530:
case BQ27421:
if (di->opts & BQ27XXX_O_UTOT)
return flags & BQ27XXX_FLAG_OT;
default:
return false;
}
return false;
}
/*
@ -1545,7 +1484,7 @@ static bool bq27xxx_battery_overtemp(struct bq27xxx_device_info *di, u16 flags)
*/
static bool bq27xxx_battery_undertemp(struct bq27xxx_device_info *di, u16 flags)
{
if (di->chip == BQ27530 || di->chip == BQ27421)
if (di->opts & BQ27XXX_O_UTOT)
return flags & BQ27XXX_FLAG_UT;
return false;
@ -1556,7 +1495,7 @@ static bool bq27xxx_battery_undertemp(struct bq27xxx_device_info *di, u16 flags)
*/
static bool bq27xxx_battery_dead(struct bq27xxx_device_info *di, u16 flags)
{
if (di->chip == BQ27000 || di->chip == BQ27010)
if (di->opts & BQ27XXX_O_ZERO)
return flags & (BQ27000_FLAG_EDV1 | BQ27000_FLAG_EDVF);
else
return flags & (BQ27XXX_FLAG_SOC1 | BQ27XXX_FLAG_SOCF);
@ -1569,7 +1508,7 @@ static bool bq27xxx_battery_dead(struct bq27xxx_device_info *di, u16 flags)
static int bq27xxx_battery_read_health(struct bq27xxx_device_info *di)
{
int flags;
bool has_singe_flag = di->chip == BQ27000 || di->chip == BQ27010;
bool has_singe_flag = di->opts & BQ27XXX_O_ZERO;
flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, has_singe_flag);
if (flags < 0) {
@ -1591,8 +1530,8 @@ static int bq27xxx_battery_read_health(struct bq27xxx_device_info *di)
void bq27xxx_battery_update(struct bq27xxx_device_info *di)
{
struct bq27xxx_reg_cache cache = {0, };
bool has_ci_flag = di->chip == BQ27000 || di->chip == BQ27010;
bool has_singe_flag = di->chip == BQ27000 || di->chip == BQ27010;
bool has_ci_flag = di->opts & BQ27XXX_O_ZERO;
bool has_singe_flag = di->opts & BQ27XXX_O_ZERO;
cache.flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, has_singe_flag);
if ((cache.flags & 0xff) == 0xff)
@ -1670,7 +1609,7 @@ static int bq27xxx_battery_current(struct bq27xxx_device_info *di,
return curr;
}
if (di->chip == BQ27000 || di->chip == BQ27010) {
if (di->opts & BQ27XXX_O_ZERO) {
flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, true);
if (flags & BQ27000_FLAG_CHGS) {
dev_dbg(di->dev, "negative current!\n");
@ -1691,7 +1630,7 @@ static int bq27xxx_battery_status(struct bq27xxx_device_info *di,
{
int status;
if (di->chip == BQ27000 || di->chip == BQ27010) {
if (di->opts & BQ27XXX_O_ZERO) {
if (di->cache.flags & BQ27000_FLAG_FC)
status = POWER_SUPPLY_STATUS_FULL;
else if (di->cache.flags & BQ27000_FLAG_CHGS)
@ -1719,7 +1658,7 @@ static int bq27xxx_battery_capacity_level(struct bq27xxx_device_info *di,
{
int level;
if (di->chip == BQ27000 || di->chip == BQ27010) {
if (di->opts & BQ27XXX_O_ZERO) {
if (di->cache.flags & BQ27000_FLAG_FC)
level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
else if (di->cache.flags & BQ27000_FLAG_EDV1)
@ -1884,7 +1823,11 @@ int bq27xxx_battery_setup(struct bq27xxx_device_info *di)
INIT_DELAYED_WORK(&di->work, bq27xxx_battery_poll);
mutex_init(&di->lock);
di->regs = bq27xxx_regs[di->chip];
di->regs = bq27xxx_chip_data[di->chip].regs;
di->unseal_key = bq27xxx_chip_data[di->chip].unseal_key;
di->dm_regs = bq27xxx_chip_data[di->chip].dm_regs;
di->opts = bq27xxx_chip_data[di->chip].opts;
psy_desc = devm_kzalloc(di->dev, sizeof(*psy_desc), GFP_KERNEL);
if (!psy_desc)
@ -1892,8 +1835,8 @@ int bq27xxx_battery_setup(struct bq27xxx_device_info *di)
psy_desc->name = di->name;
psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
psy_desc->properties = bq27xxx_battery_props[di->chip].props;
psy_desc->num_properties = bq27xxx_battery_props[di->chip].size;
psy_desc->properties = bq27xxx_chip_data[di->chip].props;
psy_desc->num_properties = bq27xxx_chip_data[di->chip].props_size;
psy_desc->get_property = bq27xxx_battery_get_property;
psy_desc->external_power_changed = bq27xxx_external_power_changed;
@ -1903,8 +1846,6 @@ int bq27xxx_battery_setup(struct bq27xxx_device_info *di)
return PTR_ERR(di->bat);
}
dev_info(di->dev, "support ver. %s enabled\n", DRIVER_VERSION);
bq27xxx_battery_settings(di);
bq27xxx_battery_update(di);
@ -1938,110 +1879,6 @@ void bq27xxx_battery_teardown(struct bq27xxx_device_info *di)
}
EXPORT_SYMBOL_GPL(bq27xxx_battery_teardown);
static int bq27xxx_battery_platform_read(struct bq27xxx_device_info *di, u8 reg,
bool single)
{
struct device *dev = di->dev;
struct bq27xxx_platform_data *pdata = dev->platform_data;
unsigned int timeout = 3;
int upper, lower;
int temp;
if (!single) {
/* Make sure the value has not changed in between reading the
* lower and the upper part */
upper = pdata->read(dev, reg + 1);
do {
temp = upper;
if (upper < 0)
return upper;
lower = pdata->read(dev, reg);
if (lower < 0)
return lower;
upper = pdata->read(dev, reg + 1);
} while (temp != upper && --timeout);
if (timeout == 0)
return -EIO;
return (upper << 8) | lower;
}
return pdata->read(dev, reg);
}
static int bq27xxx_battery_platform_probe(struct platform_device *pdev)
{
struct bq27xxx_device_info *di;
struct bq27xxx_platform_data *pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "no platform_data supplied\n");
return -EINVAL;
}
if (!pdata->read) {
dev_err(&pdev->dev, "no hdq read callback supplied\n");
return -EINVAL;
}
if (!pdata->chip) {
dev_err(&pdev->dev, "no device supplied\n");
return -EINVAL;
}
di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL);
if (!di)
return -ENOMEM;
platform_set_drvdata(pdev, di);
di->dev = &pdev->dev;
di->chip = pdata->chip;
di->name = pdata->name ?: dev_name(&pdev->dev);
di->bus.read = bq27xxx_battery_platform_read;
return bq27xxx_battery_setup(di);
}
static int bq27xxx_battery_platform_remove(struct platform_device *pdev)
{
struct bq27xxx_device_info *di = platform_get_drvdata(pdev);
bq27xxx_battery_teardown(di);
return 0;
}
static const struct platform_device_id bq27xxx_battery_platform_id_table[] = {
{ "bq27000-battery", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(platform, bq27xxx_battery_platform_id_table);
#ifdef CONFIG_OF
static const struct of_device_id bq27xxx_battery_platform_of_match_table[] = {
{ .compatible = "ti,bq27000" },
{},
};
MODULE_DEVICE_TABLE(of, bq27xxx_battery_platform_of_match_table);
#endif
static struct platform_driver bq27xxx_battery_platform_driver = {
.probe = bq27xxx_battery_platform_probe,
.remove = bq27xxx_battery_platform_remove,
.driver = {
.name = "bq27000-battery",
.of_match_table = of_match_ptr(bq27xxx_battery_platform_of_match_table),
},
.id_table = bq27xxx_battery_platform_id_table,
};
module_platform_driver(bq27xxx_battery_platform_driver);
MODULE_ALIAS("platform:bq27000-battery");
MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>");
MODULE_DESCRIPTION("BQ27xxx battery monitor driver");
MODULE_LICENSE("GPL");

135
drivers/power/supply/bq27xxx_battery_hdq.c
Unescape View File

@ -0,0 +1,135 @@
/*
* BQ27xxx battery monitor HDQ/1-wire driver
*
* Copyright (C) 2007-2017 Texas Instruments Incorporated - http://www.ti.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/types.h>
#include <linux/platform_device.h>
#include <linux/mutex.h>
#include <linux/power/bq27xxx_battery.h>
#include <linux/w1.h>
#define W1_FAMILY_BQ27000 0x01
#define HDQ_CMD_READ (0 << 7)
#define HDQ_CMD_WRITE (1 << 7)
static int F_ID;
module_param(F_ID, int, S_IRUSR);
MODULE_PARM_DESC(F_ID, "1-wire slave FID for BQ27xxx device");
static int w1_bq27000_read(struct w1_slave *sl, unsigned int reg)
{
u8 val;
mutex_lock(&sl->master->bus_mutex);
w1_write_8(sl->master, HDQ_CMD_READ | reg);
val = w1_read_8(sl->master);
mutex_unlock(&sl->master->bus_mutex);
return val;
}
static int bq27xxx_battery_hdq_read(struct bq27xxx_device_info *di, u8 reg,
bool single)
{
struct w1_slave *sl = dev_to_w1_slave(di->dev);
unsigned int timeout = 3;
int upper, lower;
int temp;
if (!single) {
/*
* Make sure the value has not changed in between reading the
* lower and the upper part
*/
upper = w1_bq27000_read(sl, reg + 1);
do {
temp = upper;
if (upper < 0)
return upper;
lower = w1_bq27000_read(sl, reg);
if (lower < 0)
return lower;
upper = w1_bq27000_read(sl, reg + 1);
} while (temp != upper && --timeout);
if (timeout == 0)
return -EIO;
return (upper << 8) | lower;
}
return w1_bq27000_read(sl, reg);
}
static int bq27xxx_battery_hdq_add_slave(struct w1_slave *sl)
{
struct bq27xxx_device_info *di;
di = devm_kzalloc(&sl->dev, sizeof(*di), GFP_KERNEL);
if (!di)
return -ENOMEM;
dev_set_drvdata(&sl->dev, di);
di->dev = &sl->dev;
di->chip = BQ27000;
di->name = "bq27000-battery";
di->bus.read = bq27xxx_battery_hdq_read;
return bq27xxx_battery_setup(di);
}
static void bq27xxx_battery_hdq_remove_slave(struct w1_slave *sl)
{
struct bq27xxx_device_info *di = dev_get_drvdata(&sl->dev);
bq27xxx_battery_teardown(di);
}
static struct w1_family_ops bq27xxx_battery_hdq_fops = {
.add_slave = bq27xxx_battery_hdq_add_slave,
.remove_slave = bq27xxx_battery_hdq_remove_slave,
};
static struct w1_family bq27xxx_battery_hdq_family = {
.fid = W1_FAMILY_BQ27000,
.fops = &bq27xxx_battery_hdq_fops,
};
static int __init bq27xxx_battery_hdq_init(void)
{
if (F_ID)
bq27xxx_battery_hdq_family.fid = F_ID;
return w1_register_family(&bq27xxx_battery_hdq_family);
}
module_init(bq27xxx_battery_hdq_init);
static void __exit bq27xxx_battery_hdq_exit(void)
{
w1_unregister_family(&bq27xxx_battery_hdq_family);
}
module_exit(bq27xxx_battery_hdq_exit);
MODULE_AUTHOR("Texas Instruments Ltd");
MODULE_DESCRIPTION("BQ27xxx battery monitor HDQ/1-wire driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_BQ27000));

16
drivers/power/supply/bq27xxx_battery_i2c.c
Unescape View File

@ -230,7 +230,7 @@ static const struct i2c_device_id bq27xxx_i2c_id_table[] = {
{ "bq27210", BQ27010 },
{ "bq27500", BQ2750X },
{ "bq27510", BQ2751X },
{ "bq27520", BQ2751X },
{ "bq27520", BQ2752X },
{ "bq27500-1", BQ27500 },
{ "bq27510g1", BQ27510G1 },
{ "bq27510g2", BQ27510G2 },
@ -240,16 +240,16 @@ static const struct i2c_device_id bq27xxx_i2c_id_table[] = {
{ "bq27520g3", BQ27520G3 },
{ "bq27520g4", BQ27520G4 },
{ "bq27530", BQ27530 },
{ "bq27531", BQ27530 },
{ "bq27531", BQ27531 },
{ "bq27541", BQ27541 },
{ "bq27542", BQ27541 },
{ "bq27546", BQ27541 },
{ "bq27742", BQ27541 },
{ "bq27542", BQ27542 },
{ "bq27546", BQ27546 },
{ "bq27742", BQ27742 },
{ "bq27545", BQ27545 },
{ "bq27421", BQ27421 },
{ "bq27425", BQ27421 },
{ "bq27441", BQ27421 },
{ "bq27621", BQ27421 },
{ "bq27425", BQ27425 },
{ "bq27441", BQ27441 },
{ "bq27621", BQ27621 },
{},
};
MODULE_DEVICE_TABLE(i2c, bq27xxx_i2c_id_table);

9
drivers/power/supply/charger-manager.c
Unescape View File

@ -1632,8 +1632,7 @@ static int charger_manager_probe(struct platform_device *pdev)
return -ENODEV;
}
cm = devm_kzalloc(&pdev->dev,
sizeof(struct charger_manager), GFP_KERNEL);
cm = devm_kzalloc(&pdev->dev, sizeof(*cm), GFP_KERNEL);
if (!cm)
return -ENOMEM;
@ -1645,12 +1644,14 @@ static int charger_manager_probe(struct platform_device *pdev)
/* Initialize alarm timer */
if (alarmtimer_get_rtcdev()) {
cm_timer = devm_kzalloc(cm->dev, sizeof(*cm_timer), GFP_KERNEL);
if (!cm_timer)
return -ENOMEM;
alarm_init(cm_timer, ALARM_BOOTTIME, cm_timer_func);
}
/*
* The following two do not need to be errors.
* Users may intentionally ignore those two features.
* Some of the following do not need to be errors.
* Users may intentionally ignore those features.
*/
if (desc->fullbatt_uV == 0) {
dev_info(&pdev->dev, "Ignoring full-battery voltage threshold as it is not supplied\n");

4
drivers/power/supply/ds2780_battery.c
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@ -663,7 +663,7 @@ static ssize_t ds2780_write_param_eeprom_bin(struct file *filp,
return count;
}
static struct bin_attribute ds2780_param_eeprom_bin_attr = {
static const struct bin_attribute ds2780_param_eeprom_bin_attr = {
.attr = {
.name = "param_eeprom",
.mode = S_IRUGO | S_IWUSR,
@ -708,7 +708,7 @@ static ssize_t ds2780_write_user_eeprom_bin(struct file *filp,
return count;
}
static struct bin_attribute ds2780_user_eeprom_bin_attr = {
static const struct bin_attribute ds2780_user_eeprom_bin_attr = {
.attr = {
.name = "user_eeprom",
.mode = S_IRUGO | S_IWUSR,

4
drivers/power/supply/ds2781_battery.c
Unescape View File

@ -665,7 +665,7 @@ static ssize_t ds2781_write_param_eeprom_bin(struct file *filp,
return count;
}
static struct bin_attribute ds2781_param_eeprom_bin_attr = {
static const struct bin_attribute ds2781_param_eeprom_bin_attr = {
.attr = {
.name = "param_eeprom",
.mode = S_IRUGO | S_IWUSR,
@ -711,7 +711,7 @@ static ssize_t ds2781_write_user_eeprom_bin(struct file *filp,
return count;
}
static struct bin_attribute ds2781_user_eeprom_bin_attr = {
static const struct bin_attribute ds2781_user_eeprom_bin_attr = {
.attr = {
.name = "user_eeprom",
.mode = S_IRUGO | S_IWUSR,

18
drivers/power/supply/lp8788-charger.c
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@ -626,7 +626,7 @@ static ssize_t lp8788_show_charger_status(struct device *dev,
{
struct lp8788_charger *pchg = dev_get_drvdata(dev);
enum lp8788_charging_state state;
char *desc[LP8788_MAX_CHG_STATE] = {
static const char * const desc[LP8788_MAX_CHG_STATE] = {
[LP8788_OFF] = "CHARGER OFF",
[LP8788_WARM_UP] = "WARM UP",
[LP8788_LOW_INPUT] = "LOW INPUT STATE",
@ -650,8 +650,10 @@ static ssize_t lp8788_show_eoc_time(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct lp8788_charger *pchg = dev_get_drvdata(dev);
char *stime[] = { "400ms", "5min", "10min", "15min",
"20min", "25min", "30min", "No timeout" };
static const char * const stime[] = {
"400ms", "5min", "10min", "15min",
"20min", "25min", "30min", "No timeout"
};
u8 val;
lp8788_read_byte(pchg->lp, LP8788_CHG_EOC, &val);
@ -665,9 +667,13 @@ static ssize_t lp8788_show_eoc_level(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct lp8788_charger *pchg = dev_get_drvdata(dev);
char *abs_level[] = { "25mA", "49mA", "75mA", "98mA" };
char *relative_level[] = { "5%", "10%", "15%", "20%" };
char *level;
static const char * const abs_level[] = {
"25mA", "49mA", "75mA", "98mA"
};
static const char * const relative_level[] = {
"5%", "10%", "15%", "20%"
};
const char *level;
u8 val;
u8 mode;

156
drivers/power/supply/ltc2941-battery-gauge.c
Unescape View File

@ -1,6 +1,6 @@
/*
* I2C client/driver for the Linear Technology LTC2941 and LTC2943
* Battery Gas Gauge IC
* I2C client/driver for the Linear Technology LTC2941, LTC2942, LTC2943
* and LTC2944 Battery Gas Gauge IC
*
* Copyright (C) 2014 Topic Embedded Systems
*
@ -34,35 +34,39 @@ enum ltc294x_reg {
LTC294X_REG_CONTROL = 0x01,
LTC294X_REG_ACC_CHARGE_MSB = 0x02,
LTC294X_REG_ACC_CHARGE_LSB = 0x03,
LTC294X_REG_THRESH_HIGH_MSB = 0x04,
LTC294X_REG_THRESH_HIGH_LSB = 0x05,
LTC294X_REG_THRESH_LOW_MSB = 0x06,
LTC294X_REG_THRESH_LOW_LSB = 0x07,
LTC294X_REG_VOLTAGE_MSB = 0x08,
LTC294X_REG_VOLTAGE_LSB = 0x09,
LTC294X_REG_CURRENT_MSB = 0x0E,
LTC294X_REG_CURRENT_LSB = 0x0F,
LTC294X_REG_TEMPERATURE_MSB = 0x14,
LTC294X_REG_TEMPERATURE_LSB = 0x15,
LTC294X_REG_VOLTAGE_MSB = 0x08,
LTC294X_REG_VOLTAGE_LSB = 0x09,
LTC2942_REG_TEMPERATURE_MSB = 0x0C,
LTC2942_REG_TEMPERATURE_LSB = 0x0D,
LTC2943_REG_CURRENT_MSB = 0x0E,
LTC2943_REG_CURRENT_LSB = 0x0F,
LTC2943_REG_TEMPERATURE_MSB = 0x14,
LTC2943_REG_TEMPERATURE_LSB = 0x15,
};
#define LTC2943_REG_CONTROL_MODE_MASK (BIT(7) | BIT(6))
#define LTC2943_REG_CONTROL_MODE_SCAN BIT(7)
enum ltc294x_id {
LTC2941_ID,
LTC2942_ID,
LTC2943_ID,
LTC2944_ID,
};
#define LTC2941_REG_STATUS_CHIP_ID BIT(7)
#define LTC2942_REG_CONTROL_MODE_SCAN (BIT(7) | BIT(6))
#define LTC2943_REG_CONTROL_MODE_SCAN BIT(7)
#define LTC294X_REG_CONTROL_PRESCALER_MASK (BIT(5) | BIT(4) | BIT(3))
#define LTC294X_REG_CONTROL_SHUTDOWN_MASK (BIT(0))
#define LTC294X_REG_CONTROL_PRESCALER_SET(x) \
((x << 3) & LTC294X_REG_CONTROL_PRESCALER_MASK)
#define LTC294X_REG_CONTROL_ALCC_CONFIG_DISABLED 0
#define LTC2941_NUM_REGS 0x08
#define LTC2943_NUM_REGS 0x18
struct ltc294x_info {
struct i2c_client *client; /* I2C Client pointer */
struct power_supply *supply; /* Supply pointer */
struct power_supply_desc supply_desc; /* Supply description */
struct delayed_work work; /* Work scheduler */
unsigned long num_regs; /* Number of registers (chip type) */
enum ltc294x_id id; /* Chip type */
int charge; /* Last charge register content */
int r_sense; /* mOhm */
int Qlsb; /* nAh */
@ -145,9 +149,18 @@ static int ltc294x_reset(const struct ltc294x_info *info, int prescaler_exp)
control = LTC294X_REG_CONTROL_PRESCALER_SET(prescaler_exp) |
LTC294X_REG_CONTROL_ALCC_CONFIG_DISABLED;
/* Put the 2943 into "monitor" mode, so it measures every 10 sec */
if (info->num_regs == LTC2943_NUM_REGS)
/* Put device into "monitor" mode */
switch (info->id) {
case LTC2942_ID: /* 2942 measures every 2 sec */
control |= LTC2942_REG_CONTROL_MODE_SCAN;
break;
case LTC2943_ID:
case LTC2944_ID: /* 2943 and 2944 measure every 10 sec */
control |= LTC2943_REG_CONTROL_MODE_SCAN;
break;
default:
break;
}
if (value != control) {
ret = ltc294x_write_regs(info->client,
@ -252,7 +265,24 @@ static int ltc294x_get_voltage(const struct ltc294x_info *info, int *val)
ret = ltc294x_read_regs(info->client,
LTC294X_REG_VOLTAGE_MSB, &datar[0], 2);
value = (datar[0] << 8) | datar[1];
*val = ((value * 23600) / 0xFFFF) * 1000; /* in uV */
switch (info->id) {
case LTC2943_ID:
value *= 23600 * 2;
value /= 0xFFFF;
value *= 1000 / 2;
break;
case LTC2944_ID:
value *= 70800 / 5*4;
value /= 0xFFFF;
value *= 1000 * 5/4;
break;
default:
value *= 6000 * 10;
value /= 0xFFFF;
value *= 1000 / 10;
break;
}
*val = value;
return ret;
}
@ -263,27 +293,38 @@ static int ltc294x_get_current(const struct ltc294x_info *info, int *val)
s32 value;
ret = ltc294x_read_regs(info->client,
LTC294X_REG_CURRENT_MSB, &datar[0], 2);
LTC2943_REG_CURRENT_MSB, &datar[0], 2);
value = (datar[0] << 8) | datar[1];
value -= 0x7FFF;
if (info->id == LTC2944_ID)
value *= 64000;
else
value *= 60000;
/* Value is in range -32k..+32k, r_sense is usually 10..50 mOhm,
* the formula below keeps everything in s32 range while preserving
* enough digits */
*val = 1000 * ((60000 * value) / (info->r_sense * 0x7FFF)); /* in uA */
*val = 1000 * (value / (info->r_sense * 0x7FFF)); /* in uA */
return ret;
}
static int ltc294x_get_temperature(const struct ltc294x_info *info, int *val)
{
enum ltc294x_reg reg;
int ret;
u8 datar[2];
u32 value;
ret = ltc294x_read_regs(info->client,
LTC294X_REG_TEMPERATURE_MSB, &datar[0], 2);
value = (datar[0] << 8) | datar[1];
/* Full-scale is 510 Kelvin, convert to centidegrees */
*val = (((51000 * value) / 0xFFFF) - 27215);
if (info->id == LTC2942_ID) {
reg = LTC2942_REG_TEMPERATURE_MSB;
value = 60000; /* Full-scale is 600 Kelvin */
} else {
reg = LTC2943_REG_TEMPERATURE_MSB;
value = 51000; /* Full-scale is 510 Kelvin */
}
ret = ltc294x_read_regs(info->client, reg, &datar[0], 2);
value *= (datar[0] << 8) | datar[1];
/* Convert to centidegrees */
*val = value / 0xFFFF - 27215;
return ret;
}
@ -357,8 +398,8 @@ static enum power_supply_property ltc294x_properties[] = {
POWER_SUPPLY_PROP_CHARGE_COUNTER,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_CURRENT_NOW,
};
static int ltc294x_i2c_remove(struct i2c_client *client)
@ -375,10 +416,11 @@ static int ltc294x_i2c_probe(struct i2c_client *client,
{
struct power_supply_config psy_cfg = {};
struct ltc294x_info *info;
struct device_node *np;
int ret;
u32 prescaler_exp;
s32 r_sense;
struct device_node *np;
u8 status;
info = devm_kzalloc(&client->dev, sizeof(*info), GFP_KERNEL);
if (info == NULL)
@ -388,7 +430,7 @@ static int ltc294x_i2c_probe(struct i2c_client *client,
np = of_node_get(client->dev.of_node);
info->num_regs = (unsigned long)of_device_get_match_data(&client->dev);
info->id = (enum ltc294x_id)of_device_get_match_data(&client->dev);
info->supply_desc.name = np->name;
/* r_sense can be negative, when sense+ is connected to the battery
@ -409,7 +451,7 @@ static int ltc294x_i2c_probe(struct i2c_client *client,
prescaler_exp = LTC2941_MAX_PRESCALER_EXP;
}
if (info->num_regs == LTC2943_NUM_REGS) {
if (info->id == LTC2943_ID) {
if (prescaler_exp > LTC2943_MAX_PRESCALER_EXP)
prescaler_exp = LTC2943_MAX_PRESCALER_EXP;
info->Qlsb = ((340 * 50000) / r_sense) /
@ -421,21 +463,39 @@ static int ltc294x_i2c_probe(struct i2c_client *client,
(128 / (1 << prescaler_exp));
}
/* Read status register to check for LTC2942 */
if (info->id == LTC2941_ID || info->id == LTC2942_ID) {
ret = ltc294x_read_regs(client, LTC294X_REG_STATUS, &status, 1);
if (ret < 0) {
dev_err(&client->dev,
"Could not read status register\n");
return ret;
}
if (status & LTC2941_REG_STATUS_CHIP_ID)
info->id = LTC2941_ID;
else
info->id = LTC2942_ID;
}
info->client = client;
info->supply_desc.type = POWER_SUPPLY_TYPE_BATTERY;
info->supply_desc.properties = ltc294x_properties;
if (info->num_regs >= LTC294X_REG_TEMPERATURE_LSB)
switch (info->id) {
case LTC2944_ID:
case LTC2943_ID:
info->supply_desc.num_properties =
ARRAY_SIZE(ltc294x_properties);
else if (info->num_regs >= LTC294X_REG_CURRENT_LSB)
break;
case LTC2942_ID:
info->supply_desc.num_properties =
ARRAY_SIZE(ltc294x_properties) - 1;
else if (info->num_regs >= LTC294X_REG_VOLTAGE_LSB)
info->supply_desc.num_properties =
ARRAY_SIZE(ltc294x_properties) - 2;
else
break;
case LTC2941_ID:
default:
info->supply_desc.num_properties =
ARRAY_SIZE(ltc294x_properties) - 3;
break;
}
info->supply_desc.get_property = ltc294x_get_property;
info->supply_desc.set_property = ltc294x_set_property;
info->supply_desc.property_is_writeable = ltc294x_property_is_writeable;
@ -492,8 +552,10 @@ static SIMPLE_DEV_PM_OPS(ltc294x_pm_ops, ltc294x_suspend, ltc294x_resume);
static const struct i2c_device_id ltc294x_i2c_id[] = {
{"ltc2941", LTC2941_NUM_REGS},
{"ltc2943", LTC2943_NUM_REGS},
{ "ltc2941", LTC2941_ID, },
{ "ltc2942", LTC2942_ID, },
{ "ltc2943", LTC2943_ID, },
{ "ltc2944", LTC2944_ID, },
{ },
};
MODULE_DEVICE_TABLE(i2c, ltc294x_i2c_id);
@ -501,11 +563,19 @@ MODULE_DEVICE_TABLE(i2c, ltc294x_i2c_id);
static const struct of_device_id ltc294x_i2c_of_match[] = {
{
.compatible = "lltc,ltc2941",
.data = (void *)LTC2941_NUM_REGS
.data = (void *)LTC2941_ID,
},
{
.compatible = "lltc,ltc2942",
.data = (void *)LTC2942_ID,
},
{
.compatible = "lltc,ltc2943",
.data = (void *)LTC2943_NUM_REGS
.data = (void *)LTC2943_ID,
},
{
.compatible = "lltc,ltc2944",
.data = (void *)LTC2944_ID,
},
{ },
};
@ -525,5 +595,5 @@ module_i2c_driver(ltc294x_driver);
MODULE_AUTHOR("Auryn Verwegen, Topic Embedded Systems");
MODULE_AUTHOR("Mike Looijmans, Topic Embedded Products");
MODULE_DESCRIPTION("LTC2941/LTC2943 Battery Gas Gauge IC driver");
MODULE_DESCRIPTION("LTC2941/LTC2942/LTC2943/LTC2944 Battery Gas Gauge IC driver");
MODULE_LICENSE("GPL");

42
drivers/power/supply/max17042_battery.c
Unescape View File

@ -22,6 +22,7 @@
* This driver is based on max17040_battery.c
*/
#include <linux/acpi.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
@ -982,6 +983,8 @@ static int max17042_probe(struct i2c_client *client,
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
const struct power_supply_desc *max17042_desc = &max17042_psy_desc;
struct power_supply_config psy_cfg = {};
const struct acpi_device_id *acpi_id = NULL;
struct device *dev = &client->dev;
struct max17042_chip *chip;
int ret;
int i;
@ -995,7 +998,15 @@ static int max17042_probe(struct i2c_client *client,
return -ENOMEM;
chip->client = client;
chip->chip_type = id->driver_data;
if (id) {
chip->chip_type = id->driver_data;
} else {
acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!acpi_id)
return -ENODEV;
chip->chip_type = acpi_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");
@ -1039,11 +1050,18 @@ static int max17042_probe(struct i2c_client *client,
}
if (client->irq) {
unsigned int flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
/*
* On ACPI systems the IRQ may be handled by ACPI-event code,
* so we need to share (if the ACPI code is willing to share).
*/
if (acpi_id)
flags |= IRQF_SHARED | IRQF_PROBE_SHARED;
ret = devm_request_threaded_irq(&client->dev, client->irq,
NULL,
max17042_thread_handler,
IRQF_TRIGGER_FALLING |
IRQF_ONESHOT,
max17042_thread_handler, flags,
chip->battery->desc->name,
chip);
if (!ret) {
@ -1053,10 +1071,13 @@ static int max17042_probe(struct i2c_client *client,
max17042_set_soc_threshold(chip, 1);
} else {
client->irq = 0;
dev_err(&client->dev, "%s(): cannot get IRQ\n",
__func__);
if (ret != -EBUSY)
dev_err(&client->dev, "Failed to get IRQ\n");
}
}
/* Not able to update the charge threshold when exceeded? -> disable */
if (!client->irq)
regmap_write(chip->regmap, MAX17042_SALRT_Th, 0xff00);
regmap_read(chip->regmap, MAX17042_STATUS, &val);
if (val & STATUS_POR_BIT) {
@ -1104,6 +1125,14 @@ static int max17042_resume(struct device *dev)
static SIMPLE_DEV_PM_OPS(max17042_pm_ops, max17042_suspend,
max17042_resume);
#ifdef CONFIG_ACPI
static const struct acpi_device_id max17042_acpi_match[] = {
{ "MAX17047", MAXIM_DEVICE_TYPE_MAX17047 },
{ }
};
MODULE_DEVICE_TABLE(acpi, max17042_acpi_match);
#endif
#ifdef CONFIG_OF
static const struct of_device_id max17042_dt_match[] = {
{ .compatible = "maxim,max17042" },
@ -1125,6 +1154,7 @@ MODULE_DEVICE_TABLE(i2c, max17042_id);
static struct i2c_driver max17042_i2c_driver = {
.driver = {
.name = "max17042",
.acpi_match_table = ACPI_PTR(max17042_acpi_match),
.of_match_table = of_match_ptr(max17042_dt_match),
.pm = &max17042_pm_ops,
},

448
drivers/power/supply/max1721x_battery.c
Unescape View File

@ -0,0 +1,448 @@
/*
* 1-Wire implementation for Maxim Semiconductor
* MAX7211/MAX17215 stanalone fuel gauge chip
*
* Copyright (C) 2017 Radioavionica Corporation
* Author: Alex A. Mihaylov <minimumlaw@rambler.ru>
*
* Use consistent with the GNU GPL is permitted,
* provided that this copyright notice is
* preserved in its entirety in all copies and derived works.
*
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/w1.h>
#include <linux/regmap.h>
#include <linux/power_supply.h>
#define W1_MAX1721X_FAMILY_ID 0x26
#define DEF_DEV_NAME_MAX17211 "MAX17211"
#define DEF_DEV_NAME_MAX17215 "MAX17215"
#define DEF_DEV_NAME_UNKNOWN "UNKNOWN"
#define DEF_MFG_NAME "MAXIM"
#define PSY_MAX_NAME_LEN 32
/* Number of valid register addresses in W1 mode */
#define MAX1721X_MAX_REG_NR 0x1EF
/* Factory settings (nonvilatile registers) (W1 specific) */
#define MAX1721X_REG_NRSENSE 0x1CF /* RSense in 10^-5 Ohm */
/* Strings */
#define MAX1721X_REG_MFG_STR 0x1CC
#define MAX1721X_REG_MFG_NUMB 3
#define MAX1721X_REG_DEV_STR 0x1DB
#define MAX1721X_REG_DEV_NUMB 5
/* HEX Strings */
#define MAX1721X_REG_SER_HEX 0x1D8
/* MAX172XX Output Registers for W1 chips */
#define MAX172XX_REG_STATUS 0x000 /* status reg */
#define MAX172XX_BAT_PRESENT (1<<4) /* battery connected bit */
#define MAX172XX_REG_DEVNAME 0x021 /* chip config */
#define MAX172XX_DEV_MASK 0x000F /* chip type mask */
#define MAX172X1_DEV 0x0001
#define MAX172X5_DEV 0x0005
#define MAX172XX_REG_TEMP 0x008 /* Temperature */
#define MAX172XX_REG_BATT 0x0DA /* Battery voltage */
#define MAX172XX_REG_CURRENT 0x00A /* Actual current */
#define MAX172XX_REG_AVGCURRENT 0x00B /* Average current */
#define MAX172XX_REG_REPSOC 0x006 /* Percentage of charge */
#define MAX172XX_REG_DESIGNCAP 0x018 /* Design capacity */
#define MAX172XX_REG_REPCAP 0x005 /* Average capacity */
#define MAX172XX_REG_TTE 0x011 /* Time to empty */
#define MAX172XX_REG_TTF 0x020 /* Time to full */
struct max17211_device_info {
char name[PSY_MAX_NAME_LEN];
struct power_supply *bat;
struct power_supply_desc bat_desc;
struct device *w1_dev;
struct regmap *regmap;
/* battery design format */
unsigned int rsense; /* in tenths uOhm */
char DeviceName[2 * MAX1721X_REG_DEV_NUMB + 1];
char ManufacturerName[2 * MAX1721X_REG_MFG_NUMB + 1];
char SerialNumber[13]; /* see get_sn_str() later for comment */
};
/* Convert regs value to power_supply units */
static inline int max172xx_time_to_ps(unsigned int reg)
{
return reg * 5625 / 1000; /* in sec. */
}
static inline int max172xx_percent_to_ps(unsigned int reg)
{
return reg / 256; /* in percent from 0 to 100 */
}
static inline int max172xx_voltage_to_ps(unsigned int reg)
{
return reg * 1250; /* in uV */
}
static inline int max172xx_capacity_to_ps(unsigned int reg)
{
return reg * 500; /* in uAh */
}
/*
* Current and temperature is signed values, so unsigned regs
* value must be converted to signed type
*/
static inline int max172xx_temperature_to_ps(unsigned int reg)
{
int val = (int16_t)(reg);
return val * 10 / 256; /* in tenths of deg. C */
}
/*
* Calculating current registers resolution:
*
* RSense stored in 10^-5 Ohm, so mesaurment voltage must be
* in 10^-11 Volts for get current in uA.
* 16 bit current reg fullscale +/-51.2mV is 102400 uV.
* So: 102400 / 65535 * 10^5 = 156252
*/
static inline int max172xx_current_to_voltage(unsigned int reg)
{
int val = (int16_t)(reg);
return val * 156252;
}
static inline struct max17211_device_info *
to_device_info(struct power_supply *psy)
{
return power_supply_get_drvdata(psy);
}
static int max1721x_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct max17211_device_info *info = to_device_info(psy);
unsigned int reg = 0;
int ret = 0;
switch (psp) {
case POWER_SUPPLY_PROP_PRESENT:
/*
* POWER_SUPPLY_PROP_PRESENT will always readable via
* sysfs interface. Value return 0 if battery not
* present or unaccesable via W1.
*/
val->intval =
regmap_read(info->regmap, MAX172XX_REG_STATUS,
&reg) ? 0 : !(reg & MAX172XX_BAT_PRESENT);
break;
case POWER_SUPPLY_PROP_CAPACITY:
ret = regmap_read(info->regmap, MAX172XX_REG_REPSOC, &reg);
val->intval = max172xx_percent_to_ps(reg);
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
ret = regmap_read(info->regmap, MAX172XX_REG_BATT, &reg);
val->intval = max172xx_voltage_to_ps(reg);
break;
case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
ret = regmap_read(info->regmap, MAX172XX_REG_DESIGNCAP, &reg);
val->intval = max172xx_capacity_to_ps(reg);
break;
case POWER_SUPPLY_PROP_CHARGE_AVG:
ret = regmap_read(info->regmap, MAX172XX_REG_REPCAP, &reg);
val->intval = max172xx_capacity_to_ps(reg);
break;
case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
ret = regmap_read(info->regmap, MAX172XX_REG_TTE, &reg);
val->intval = max172xx_time_to_ps(reg);
break;
case POWER_SUPPLY_PROP_TIME_TO_FULL_AVG:
ret = regmap_read(info->regmap, MAX172XX_REG_TTF, &reg);
val->intval = max172xx_time_to_ps(reg);
break;
case POWER_SUPPLY_PROP_TEMP:
ret = regmap_read(info->regmap, MAX172XX_REG_TEMP, &reg);
val->intval = max172xx_temperature_to_ps(reg);
break;
/* We need signed current, so must cast info->rsense to signed type */
case POWER_SUPPLY_PROP_CURRENT_NOW:
ret = regmap_read(info->regmap, MAX172XX_REG_CURRENT, &reg);
val->intval =
max172xx_current_to_voltage(reg) / (int)info->rsense;
break;
case POWER_SUPPLY_PROP_CURRENT_AVG:
ret = regmap_read(info->regmap, MAX172XX_REG_AVGCURRENT, &reg);
val->intval =
max172xx_current_to_voltage(reg) / (int)info->rsense;
break;
/*
* Strings already received and inited by probe.
* We do dummy read for check battery still available.
*/
case POWER_SUPPLY_PROP_MODEL_NAME:
ret = regmap_read(info->regmap, MAX1721X_REG_DEV_STR, &reg);
val->strval = info->DeviceName;
break;
case POWER_SUPPLY_PROP_MANUFACTURER:
ret = regmap_read(info->regmap, MAX1721X_REG_MFG_STR, &reg);
val->strval = info->ManufacturerName;
break;
case POWER_SUPPLY_PROP_SERIAL_NUMBER:
ret = regmap_read(info->regmap, MAX1721X_REG_SER_HEX, &reg);
val->strval = info->SerialNumber;
break;
default:
ret = -EINVAL;
}
return ret;
}
static enum power_supply_property max1721x_battery_props[] = {
/* int */
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_CHARGE_AVG,
POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
POWER_SUPPLY_PROP_TIME_TO_FULL_AVG,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CURRENT_AVG,
/* strings */
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER,
POWER_SUPPLY_PROP_SERIAL_NUMBER,
};
static int get_string(struct max17211_device_info *info,
uint16_t reg, uint8_t nr, char *str)
{
unsigned int val;
if (!str || !(reg == MAX1721X_REG_MFG_STR ||
reg == MAX1721X_REG_DEV_STR))
return -EFAULT;
while (nr--) {
if (regmap_read(info->regmap, reg++, &val))
return -EFAULT;
*str++ = val>>8 & 0x00FF;
*str++ = val & 0x00FF;
}
return 0;
}
/* Maxim say: Serial number is a hex string up to 12 hex characters */
static int get_sn_string(struct max17211_device_info *info, char *str)
{
unsigned int val[3];
if (!str)
return -EFAULT;
if (regmap_read(info->regmap, MAX1721X_REG_SER_HEX, &val[0]))
return -EFAULT;
if (regmap_read(info->regmap, MAX1721X_REG_SER_HEX + 1, &val[1]))
return -EFAULT;
if (regmap_read(info->regmap, MAX1721X_REG_SER_HEX + 2, &val[2]))
return -EFAULT;
snprintf(str, 13, "%04X%04X%04X", val[0], val[1], val[2]);
return 0;
}
/*
* MAX1721x registers description for w1-regmap
*/
static const struct regmap_range max1721x_allow_range[] = {
regmap_reg_range(0, 0xDF), /* volatile data */
regmap_reg_range(0x180, 0x1DF), /* non-volatile memory */
regmap_reg_range(0x1E0, 0x1EF), /* non-volatile history (unused) */
};
static const struct regmap_range max1721x_deny_range[] = {
/* volatile data unused registers */
regmap_reg_range(0x24, 0x26),
regmap_reg_range(0x30, 0x31),
regmap_reg_range(0x33, 0x34),
regmap_reg_range(0x37, 0x37),
regmap_reg_range(0x3B, 0x3C),
regmap_reg_range(0x40, 0x41),
regmap_reg_range(0x43, 0x44),
regmap_reg_range(0x47, 0x49),
regmap_reg_range(0x4B, 0x4C),
regmap_reg_range(0x4E, 0xAF),
regmap_reg_range(0xB1, 0xB3),
regmap_reg_range(0xB5, 0xB7),
regmap_reg_range(0xBF, 0xD0),
regmap_reg_range(0xDB, 0xDB),
/* hole between volatile and non-volatile registers */
regmap_reg_range(0xE0, 0x17F),
};
static const struct regmap_access_table max1721x_regs = {
.yes_ranges = max1721x_allow_range,
.n_yes_ranges = ARRAY_SIZE(max1721x_allow_range),
.no_ranges = max1721x_deny_range,
.n_no_ranges = ARRAY_SIZE(max1721x_deny_range),
};
/*
* Model Gauge M5 Algorithm output register
* Volatile data (must not be cached)
*/
static const struct regmap_range max1721x_volatile_allow[] = {
regmap_reg_range(0, 0xDF),
};
static const struct regmap_access_table max1721x_volatile_regs = {
.yes_ranges = max1721x_volatile_allow,
.n_yes_ranges = ARRAY_SIZE(max1721x_volatile_allow),
};
/*
* W1-regmap config
*/
static const struct regmap_config max1721x_regmap_w1_config = {
.reg_bits = 16,
.val_bits = 16,
.rd_table = &max1721x_regs,
.volatile_table = &max1721x_volatile_regs,
.max_register = MAX1721X_MAX_REG_NR,
};
static int devm_w1_max1721x_add_device(struct w1_slave *sl)
{
struct power_supply_config psy_cfg = {};
struct max17211_device_info *info;
info = devm_kzalloc(&sl->dev, sizeof(*info), GFP_KERNEL);
if (!info)
return -ENOMEM;
sl->family_data = (void *)info;
info->w1_dev = &sl->dev;
/*
* power_supply class battery name translated from W1 slave device
* unical ID (look like 26-0123456789AB) to "max1721x-0123456789AB\0"
* so, 26 (device family) correcpondent to max1721x devices.
* Device name still unical for any numbers connected devices.
*/
snprintf(info->name, sizeof(info->name),
"max1721x-%012X", (unsigned int)sl->reg_num.id);
info->bat_desc.name = info->name;
/*
* FixMe: battery device name exceed max len for thermal_zone device
* name and translation to thermal_zone must be disabled.
*/
info->bat_desc.no_thermal = true;
info->bat_desc.type = POWER_SUPPLY_TYPE_BATTERY;
info->bat_desc.properties = max1721x_battery_props;
info->bat_desc.num_properties = ARRAY_SIZE(max1721x_battery_props);
info->bat_desc.get_property = max1721x_battery_get_property;
psy_cfg.drv_data = info;
/* regmap init */
info->regmap = devm_regmap_init_w1(info->w1_dev,
&max1721x_regmap_w1_config);
if (IS_ERR(info->regmap)) {
int err = PTR_ERR(info->regmap);
dev_err(info->w1_dev, "Failed to allocate register map: %d\n",
err);
return err;
}
/* rsense init */
info->rsense = 0;
if (regmap_read(info->regmap, MAX1721X_REG_NRSENSE, &info->rsense)) {
dev_err(info->w1_dev, "Can't read RSense. Hardware error.\n");
return -ENODEV;
}
if (!info->rsense) {
dev_warn(info->w1_dev, "RSenese not calibrated, set 10 mOhms!\n");
info->rsense = 1000; /* in regs in 10^-5 */
}
dev_info(info->w1_dev, "RSense: %d mOhms.\n", info->rsense / 100);
if (get_string(info, MAX1721X_REG_MFG_STR,
MAX1721X_REG_MFG_NUMB, info->ManufacturerName)) {
dev_err(info->w1_dev, "Can't read manufacturer. Hardware error.\n");
return -ENODEV;
}
if (!info->ManufacturerName[0])
strncpy(info->ManufacturerName, DEF_MFG_NAME,
2 * MAX1721X_REG_MFG_NUMB);
if (get_string(info, MAX1721X_REG_DEV_STR,
MAX1721X_REG_DEV_NUMB, info->DeviceName)) {
dev_err(info->w1_dev, "Can't read device. Hardware error.\n");
return -ENODEV;
}
if (!info->DeviceName[0]) {
unsigned int dev_name;
if (regmap_read(info->regmap,
MAX172XX_REG_DEVNAME, &dev_name)) {
dev_err(info->w1_dev, "Can't read device name reg.\n");
return -ENODEV;
}
switch (dev_name & MAX172XX_DEV_MASK) {
case MAX172X1_DEV:
strncpy(info->DeviceName, DEF_DEV_NAME_MAX17211,
2 * MAX1721X_REG_DEV_NUMB);
break;
case MAX172X5_DEV:
strncpy(info->DeviceName, DEF_DEV_NAME_MAX17215,
2 * MAX1721X_REG_DEV_NUMB);
break;
default:
strncpy(info->DeviceName, DEF_DEV_NAME_UNKNOWN,
2 * MAX1721X_REG_DEV_NUMB);
}
}
if (get_sn_string(info, info->SerialNumber)) {
dev_err(info->w1_dev, "Can't read serial. Hardware error.\n");
return -ENODEV;
}
info->bat = devm_power_supply_register(&sl->dev, &info->bat_desc,
&psy_cfg);
if (IS_ERR(info->bat)) {
dev_err(info->w1_dev, "failed to register battery\n");
return PTR_ERR(info->bat);
}
return 0;
}
static struct w1_family_ops w1_max1721x_fops = {
.add_slave = devm_w1_max1721x_add_device,
};
static struct w1_family w1_max1721x_family = {
.fid = W1_MAX1721X_FAMILY_ID,
.fops = &w1_max1721x_fops,
};
module_w1_family(w1_max1721x_family);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Alex A. Mihaylov <minimumlaw@rambler.ru>");
MODULE_DESCRIPTION("Maxim MAX17211/MAX17215 Fuel Gauage IC driver");
MODULE_ALIAS("w1-family-" __stringify(W1_MAX1721X_FAMILY_ID));

4
drivers/power/supply/olpc_battery.c
Unescape View File

@ -535,7 +535,7 @@ static ssize_t olpc_bat_eeprom_read(struct file *filp, struct kobject *kobj,
return count;
}
static struct bin_attribute olpc_bat_eeprom = {
static const struct bin_attribute olpc_bat_eeprom = {
.attr = {
.name = "eeprom",
.mode = S_IRUGO,
@ -559,7 +559,7 @@ static ssize_t olpc_bat_error_read(struct device *dev,
return sprintf(buf, "%d\n", ec_byte);
}
static struct device_attribute olpc_bat_error = {
static const struct device_attribute olpc_bat_error = {
.attr = {
.name = "error",
.mode = S_IRUGO,

2
drivers/power/supply/pcf50633-charger.c
Unescape View File

@ -254,7 +254,7 @@ static struct attribute *pcf50633_mbc_sysfs_entries[] = {
NULL,
};
static struct attribute_group mbc_attr_group = {
static const struct attribute_group mbc_attr_group = {
.name = NULL, /* put in device directory */
.attrs = pcf50633_mbc_sysfs_entries,
};

54
drivers/power/supply/power_supply_core.c
Unescape View File

@ -259,18 +259,14 @@ static int power_supply_check_supplies(struct power_supply *psy)
/* All supplies found, allocate char ** array for filling */
psy->supplied_from = devm_kzalloc(&psy->dev, sizeof(psy->supplied_from),
GFP_KERNEL);
if (!psy->supplied_from) {
dev_err(&psy->dev, "Couldn't allocate memory for supply list\n");
if (!psy->supplied_from)
return -ENOMEM;
}
*psy->supplied_from = devm_kzalloc(&psy->dev,
sizeof(char *) * (cnt - 1),
GFP_KERNEL);
if (!*psy->supplied_from) {
dev_err(&psy->dev, "Couldn't allocate memory for supply list\n");
if (!*psy->supplied_from)
return -ENOMEM;
}
return power_supply_populate_supplied_from(psy);
}
@ -314,11 +310,12 @@ static int __power_supply_am_i_supplied(struct device *dev, void *_data)
struct power_supply *epsy = dev_get_drvdata(dev);
struct psy_am_i_supplied_data *data = _data;
data->count++;
if (__power_supply_is_supplied_by(epsy, data->psy))
if (__power_supply_is_supplied_by(epsy, data->psy)) {
data->count++;
if (!epsy->desc->get_property(epsy, POWER_SUPPLY_PROP_ONLINE,
&ret))
return ret.intval;
}
return 0;
}
@ -374,6 +371,47 @@ int power_supply_is_system_supplied(void)
}
EXPORT_SYMBOL_GPL(power_supply_is_system_supplied);
static int __power_supply_get_supplier_max_current(struct device *dev,
void *data)
{
union power_supply_propval ret = {0,};
struct power_supply *epsy = dev_get_drvdata(dev);
struct power_supply *psy = data;
if (__power_supply_is_supplied_by(epsy, psy))
if (!epsy->desc->get_property(epsy,
POWER_SUPPLY_PROP_CURRENT_MAX,
&ret))
return ret.intval;
return 0;
}
int power_supply_set_input_current_limit_from_supplier(struct power_supply *psy)
{
union power_supply_propval val = {0,};
int curr;
if (!psy->desc->set_property)
return -EINVAL;
/*
* This function is not intended for use with a supply with multiple
* suppliers, we simply pick the first supply to report a non 0
* max-current.
*/
curr = class_for_each_device(power_supply_class, NULL, psy,
__power_supply_get_supplier_max_current);
if (curr <= 0)
return (curr == 0) ? -ENODEV : curr;
val.intval = curr;
return psy->desc->set_property(psy,
POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, &val);
}
EXPORT_SYMBOL_GPL(power_supply_set_input_current_limit_from_supplier);
int power_supply_set_battery_charged(struct power_supply *psy)
{
if (atomic_read(&psy->use_cnt) >= 0 &&

26
drivers/power/supply/sbs-battery.c
Unescape View File

@ -12,25 +12,21 @@
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/power_supply.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/gpio/consumer.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/stat.h>
#include <linux/power/sbs-battery.h>
#include <linux/power_supply.h>
#include <linux/slab.h>
#include <linux/stat.h>
enum {
REG_MANUFACTURER_DATA,
@ -60,8 +56,8 @@ enum {
#define BATTERY_MODE_OFFSET 0x03
#define BATTERY_MODE_MASK 0x8000
enum sbs_battery_mode {
BATTERY_MODE_AMPS,
BATTERY_MODE_WATTS
BATTERY_MODE_AMPS = 0,
BATTERY_MODE_WATTS = 0x8000
};
/* manufacturer access defines */
@ -532,6 +528,8 @@ static enum sbs_battery_mode sbs_set_battery_mode(struct i2c_client *client,
if (ret < 0)
return ret;
usleep_range(1000, 2000);
return original_val & BATTERY_MODE_MASK;
}

6
drivers/w1/slaves/Kconfig
Unescape View File

@ -148,10 +148,4 @@ config W1_SLAVE_DS28E04
If you are unsure, say N.
config W1_SLAVE_BQ27000
tristate "BQ27000 slave support"
help
Say Y here if you want to use a hdq
bq27000 slave support.
endmenu

1
drivers/w1/slaves/Makefile
Unescape View File

@ -16,5 +16,4 @@ obj-$(CONFIG_W1_SLAVE_DS2438) += w1_ds2438.o
obj-$(CONFIG_W1_SLAVE_DS2760) += w1_ds2760.o
obj-$(CONFIG_W1_SLAVE_DS2780) += w1_ds2780.o
obj-$(CONFIG_W1_SLAVE_DS2781) += w1_ds2781.o
obj-$(CONFIG_W1_SLAVE_BQ27000) += w1_bq27000.o
obj-$(CONFIG_W1_SLAVE_DS28E04) += w1_ds28e04.o

117
drivers/w1/slaves/w1_bq27000.c
Unescape View File

@ -1,117 +0,0 @@
/*
* drivers/w1/slaves/w1_bq27000.c
*
* Copyright (C) 2007 Texas Instruments, Inc.
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/types.h>
#include <linux/platform_device.h>
#include <linux/mutex.h>
#include <linux/power/bq27xxx_battery.h>
#include <linux/w1.h>
#define W1_FAMILY_BQ27000 0x01
#define HDQ_CMD_READ (0)
#define HDQ_CMD_WRITE (1<<7)
static int F_ID;
module_param(F_ID, int, S_IRUSR);
MODULE_PARM_DESC(F_ID, "1-wire slave FID for BQ device");
static int w1_bq27000_read(struct device *dev, unsigned int reg)
{
u8 val;
struct w1_slave *sl = container_of(dev->parent, struct w1_slave, dev);
mutex_lock(&sl->master->bus_mutex);
w1_write_8(sl->master, HDQ_CMD_READ | reg);
val = w1_read_8(sl->master);
mutex_unlock(&sl->master->bus_mutex);
return val;
}
static struct bq27xxx_platform_data bq27000_battery_info = {
.read = w1_bq27000_read,
.name = "bq27000-battery",
.chip = BQ27000,
};
static int w1_bq27000_add_slave(struct w1_slave *sl)
{
int ret;
struct platform_device *pdev;
pdev = platform_device_alloc("bq27000-battery", -1);
if (!pdev) {
ret = -ENOMEM;
return ret;
}
ret = platform_device_add_data(pdev,
&bq27000_battery_info,
sizeof(bq27000_battery_info));
if (ret)
goto pdev_add_failed;
pdev->dev.parent = &sl->dev;
ret = platform_device_add(pdev);
if (ret)
goto pdev_add_failed;
dev_set_drvdata(&sl->dev, pdev);
goto success;
pdev_add_failed:
platform_device_put(pdev);
success:
return ret;
}
static void w1_bq27000_remove_slave(struct w1_slave *sl)
{
struct platform_device *pdev = dev_get_drvdata(&sl->dev);
platform_device_unregister(pdev);
}
static struct w1_family_ops w1_bq27000_fops = {
.add_slave = w1_bq27000_add_slave,
.remove_slave = w1_bq27000_remove_slave,
};
static struct w1_family w1_bq27000_family = {
.fid = W1_FAMILY_BQ27000,
.fops = &w1_bq27000_fops,
};
static int __init w1_bq27000_init(void)
{
if (F_ID)
w1_bq27000_family.fid = F_ID;
return w1_register_family(&w1_bq27000_family);
}
static void __exit w1_bq27000_exit(void)
{
w1_unregister_family(&w1_bq27000_family);
}
module_init(w1_bq27000_init);
module_exit(w1_bq27000_exit);
MODULE_AUTHOR("Texas Instruments Ltd");
MODULE_DESCRIPTION("HDQ/1-wire slave driver bq27000 battery monitor chip");
MODULE_LICENSE("GPL");
MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_BQ27000));

18
include/linux/power/bq24190_charger.h
Unescape View File

@ -0,0 +1,18 @@
/*
* Platform data for the TI bq24190 battery charger driver.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _BQ24190_CHARGER_H_
#define _BQ24190_CHARGER_H_
#include <linux/regulator/machine.h>
struct bq24190_platform_data {
const struct regulator_init_data *regulator_init_data;
};
#endif

27
include/linux/power/bq27xxx_battery.h
Unescape View File

@ -6,6 +6,7 @@ enum bq27xxx_chip {
BQ27010, /* bq27010, bq27210 */
BQ2750X, /* bq27500 deprecated alias */
BQ2751X, /* bq27510, bq27520 deprecated alias */
BQ2752X,
BQ27500, /* bq27500/1 */
BQ27510G1, /* bq27510G1 */
BQ27510G2, /* bq27510G2 */
@ -15,26 +16,16 @@ enum bq27xxx_chip {
BQ27520G3, /* bq27520G3 */
BQ27520G4, /* bq27520G4 */
BQ27530, /* bq27530, bq27531 */
BQ27531,
BQ27541, /* bq27541, bq27542, bq27546, bq27742 */
BQ27542,
BQ27546,
BQ27742,
BQ27545, /* bq27545 */
BQ27421, /* bq27421, bq27425, bq27441, bq27621 */
};
/**
* struct bq27xxx_plaform_data - Platform data for bq27xxx devices
* @name: Name of the battery.
* @chip: Chip class number of this device.
* @read: HDQ read callback.
* This function should provide access to the HDQ bus the battery is
* connected to.
* The first parameter is a pointer to the battery device, the second the
* register to be read. The return value should either be the content of
* the passed register or an error value.
*/
struct bq27xxx_platform_data {
const char *name;
enum bq27xxx_chip chip;
int (*read)(struct device *dev, unsigned int);
BQ27425,
BQ27441,
BQ27621,
};
struct bq27xxx_device_info;
@ -63,7 +54,7 @@ struct bq27xxx_device_info {
struct device *dev;
int id;
enum bq27xxx_chip chip;
bool ram_chip;
u32 opts;
const char *name;
struct bq27xxx_dm_reg *dm_regs;
u32 unseal_key;

2
include/linux/power_supply.h
Unescape View File

@ -332,6 +332,8 @@ extern int power_supply_get_battery_info(struct power_supply *psy,
struct power_supply_battery_info *info);
extern void power_supply_changed(struct power_supply *psy);
extern int power_supply_am_i_supplied(struct power_supply *psy);
extern int power_supply_set_input_current_limit_from_supplier(
struct power_supply *psy);
extern int power_supply_set_battery_charged(struct power_supply *psy);
#ifdef CONFIG_POWER_SUPPLY

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