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Various small bugfixes and enhancements, plus two new drivers:

Browse Source 
- A quite complex ab8500 charger driver, submitted by
   Arun Murthy @ ST-Ericsson;
 - Summit Microelectronics SMB347 Battery Charger, submitted by
   Bruce E. Robertson and Alan Cox @ Intel.
 
 And that's all.
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Merge tag 'for-v3.4-rc1' of git://git.infradead.org/battery-2.6

Pull battery updates from Anton Vorontsov:
 "Various small bugfixes and enhancements, plus two new drivers:
   - A quite complex ab8500 charger driver, submitted by Arun Murthy @
     ST-Ericsson;
   - Summit Microelectronics SMB347 Battery Charger, submitted by Bruce
     E Robertson and Alan Cox @ Intel.

  And that's all."

* tag 'for-v3.4-rc1' of git://git.infradead.org/battery-2.6: (36 commits)
  max17042_battery: Clean up interrupt handling
  Revert "max8998_charger: Include linux/module.h just once"
  ab8500_fg: Fix some build warnings on x86_64
  max17042_battery: Fix CHARGE_FULL representation.
  max8998_charger: Include linux/module.h just once
  power_supply: Convert i2c drivers to module_i2c_driver
  lp8727_charger: Add MODULE_DEVICE_TABLE
  charger-manager: Simplify charger_get_property(), get rid of a warning
  charger-manager: Clean up for better readability
  da9052-battery: Convert to use module_platform_driver
  da9052-battery: Fix a memory leak when unload the module
  da9052-battery: Add missing platform_set_drvdata
  ab8500: Turn unneeded global symbols into local ones
  ab8500_fg: Fix copy-paste error
  ab8500_fg: Get rid of 'struct battery_type'
  ab8500_fg: Get rid of 'struct v_to_cap'
  ab8500_btemp: Get rid of 'enum adc_therm'
  ab8500_charger: Convert to the new USB OTG calls
  ab8500-btemp: AB8500 battery temperature driver
  ab8500-fg: A8500 fuel gauge driver
  ...
This commit is contained in:
Linus Torvalds 2012-03-30 16:09:02 -07:00
commit 919c840167
23 changed files with 11388 additions and 206 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
Documentation/devicetree/bindings/power_supply/max17042_battery.txt Normal file
View File

@ -0,0 +1,18 @@
max17042_battery
~~~~~~~~~~~~~~~~
Required properties :
- compatible : "maxim,max17042"
Optional properties :
- maxim,rsns-microohm : Resistance of rsns resistor in micro Ohms
(datasheet-recommended value is 10000).
Defining this property enables current-sense functionality.
Example:
battery-charger@36 {
compatible = "maxim,max17042";
reg = <0x36>;
maxim,rsns-microohm = <10000>;
};

21
drivers/power/Kconfig
View File

@ -249,7 +249,7 @@ config CHARGER_TWL4030
Say Y here to enable support for TWL4030 Battery Charge Interface.
config CHARGER_LP8727
tristate "National Semiconductor LP8727 charger driver"
tristate "TI/National Semiconductor LP8727 charger driver"
depends on I2C
help
Say Y here to enable support for LP8727 Charger Driver.
@ -288,4 +288,23 @@ config CHARGER_MAX8998
Say Y to enable support for the battery charger control sysfs and
platform data of MAX8998/LP3974 PMICs.
config CHARGER_SMB347
tristate "Summit Microelectronics SMB347 Battery Charger"
depends on I2C
help
Say Y to include support for Summit Microelectronics SMB347
Battery Charger.
config AB8500_BM
bool "AB8500 Battery Management Driver"
depends on AB8500_CORE && AB8500_GPADC
help
Say Y to include support for AB5500 battery management.
config AB8500_BATTERY_THERM_ON_BATCTRL
bool "Thermistor connected on BATCTRL ADC"
depends on AB8500_BM
help
Say Y to enable battery temperature measurements using
thermistor connected on BATCTRL ADC.
endif # POWER_SUPPLY

2
drivers/power/Makefile
View File

@ -34,6 +34,7 @@ obj-$(CONFIG_BATTERY_S3C_ADC) += s3c_adc_battery.o
obj-$(CONFIG_CHARGER_PCF50633) += pcf50633-charger.o
obj-$(CONFIG_BATTERY_JZ4740) += jz4740-battery.o
obj-$(CONFIG_BATTERY_INTEL_MID) += intel_mid_battery.o
obj-$(CONFIG_AB8500_BM) += ab8500_charger.o ab8500_btemp.o ab8500_fg.o abx500_chargalg.o
obj-$(CONFIG_CHARGER_ISP1704) += isp1704_charger.o
obj-$(CONFIG_CHARGER_MAX8903) += max8903_charger.o
obj-$(CONFIG_CHARGER_TWL4030) += twl4030_charger.o
@ -42,3 +43,4 @@ obj-$(CONFIG_CHARGER_GPIO) += gpio-charger.o
obj-$(CONFIG_CHARGER_MANAGER) += charger-manager.o
obj-$(CONFIG_CHARGER_MAX8997) += max8997_charger.o
obj-$(CONFIG_CHARGER_MAX8998) += max8998_charger.o
obj-$(CONFIG_CHARGER_SMB347) += smb347-charger.o

1124
drivers/power/ab8500_btemp.c Normal file
View File

File diff suppressed because it is too large Load Diff

2789
drivers/power/ab8500_charger.c Normal file
View File

File diff suppressed because it is too large Load Diff

2637
drivers/power/ab8500_fg.c Normal file
View File

File diff suppressed because it is too large Load Diff

1921
drivers/power/abx500_chargalg.c Normal file
View File

File diff suppressed because it is too large Load Diff

57
drivers/power/charger-manager.c
View File

@ -134,12 +134,11 @@ static int get_batt_uV(struct charger_manager *cm, int *uV)
union power_supply_propval val;
int ret;
if (cm->fuel_gauge)
ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
POWER_SUPPLY_PROP_VOLTAGE_NOW, &val);
else
if (!cm->fuel_gauge)
return -ENODEV;
ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
POWER_SUPPLY_PROP_VOLTAGE_NOW, &val);
if (ret)
return ret;
@ -245,9 +244,7 @@ static int try_charger_enable(struct charger_manager *cm, bool enable)
struct charger_desc *desc = cm->desc;
/* Ignore if it's redundent command */
if (enable && cm->charger_enabled)
return 0;
if (!enable && !cm->charger_enabled)
if (enable == cm->charger_enabled)
return 0;
if (enable) {
@ -309,9 +306,7 @@ static void uevent_notify(struct charger_manager *cm, const char *event)
if (!strncmp(env_str_save, event, UEVENT_BUF_SIZE))
return; /* Duplicated. */
else
strncpy(env_str_save, event, UEVENT_BUF_SIZE);
return;
}
@ -387,8 +382,10 @@ static bool cm_monitor(void)
mutex_lock(&cm_list_mtx);
list_for_each_entry(cm, &cm_list, entry)
stop = stop || _cm_monitor(cm);
list_for_each_entry(cm, &cm_list, entry) {
if (_cm_monitor(cm))
stop = true;
}
mutex_unlock(&cm_list_mtx);
@ -402,7 +399,8 @@ static int charger_get_property(struct power_supply *psy,
struct charger_manager *cm = container_of(psy,
struct charger_manager, charger_psy);
struct charger_desc *desc = cm->desc;
int i, ret = 0, uV;
int ret = 0;
int uV;
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
@ -428,8 +426,7 @@ static int charger_get_property(struct power_supply *psy,
val->intval = 0;
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
ret = get_batt_uV(cm, &i);
val->intval = i;
ret = get_batt_uV(cm, &val->intval);
break;
case POWER_SUPPLY_PROP_CURRENT_NOW:
ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
@ -697,8 +694,10 @@ bool cm_suspend_again(void)
mutex_lock(&cm_list_mtx);
list_for_each_entry(cm, &cm_list, entry) {
if (cm->status_save_ext_pwr_inserted != is_ext_pwr_online(cm) ||
cm->status_save_batt != is_batt_present(cm))
cm->status_save_batt != is_batt_present(cm)) {
ret = false;
break;
}
}
mutex_unlock(&cm_list_mtx);
@ -855,11 +854,10 @@ static int charger_manager_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, cm);
memcpy(&cm->charger_psy, &psy_default,
sizeof(psy_default));
memcpy(&cm->charger_psy, &psy_default, sizeof(psy_default));
if (!desc->psy_name) {
strncpy(cm->psy_name_buf, psy_default.name,
PSY_NAME_MAX);
strncpy(cm->psy_name_buf, psy_default.name, PSY_NAME_MAX);
} else {
strncpy(cm->psy_name_buf, desc->psy_name, PSY_NAME_MAX);
}
@ -894,15 +892,15 @@ static int charger_manager_probe(struct platform_device *pdev)
POWER_SUPPLY_PROP_CURRENT_NOW;
cm->charger_psy.num_properties++;
}
if (!desc->measure_battery_temp) {
cm->charger_psy.properties[cm->charger_psy.num_properties] =
POWER_SUPPLY_PROP_TEMP_AMBIENT;
cm->charger_psy.num_properties++;
}
if (desc->measure_battery_temp) {
cm->charger_psy.properties[cm->charger_psy.num_properties] =
POWER_SUPPLY_PROP_TEMP;
cm->charger_psy.num_properties++;
} else {
cm->charger_psy.properties[cm->charger_psy.num_properties] =
POWER_SUPPLY_PROP_TEMP_AMBIENT;
cm->charger_psy.num_properties++;
}
ret = power_supply_register(NULL, &cm->charger_psy);
@ -933,7 +931,6 @@ static int charger_manager_probe(struct platform_device *pdev)
return 0;
err_chg_enable:
if (desc->charger_regulators)
regulator_bulk_free(desc->num_charger_regulators,
desc->charger_regulators);
err_bulk_get:
@ -961,10 +958,8 @@ static int __devexit charger_manager_remove(struct platform_device *pdev)
list_del(&cm->entry);
mutex_unlock(&cm_list_mtx);
if (desc->charger_regulators)
regulator_bulk_free(desc->num_charger_regulators,
desc->charger_regulators);
power_supply_unregister(&cm->charger_psy);
kfree(cm->charger_psy.properties);
kfree(cm->charger_stat);
@ -982,9 +977,7 @@ MODULE_DEVICE_TABLE(platform, charger_manager_id);
static int cm_suspend_prepare(struct device *dev)
{
struct platform_device *pdev = container_of(dev, struct platform_device,
dev);
struct charger_manager *cm = platform_get_drvdata(pdev);
struct charger_manager *cm = dev_get_drvdata(dev);
if (!cm_suspended) {
if (rtc_dev) {
@ -1020,9 +1013,7 @@ static int cm_suspend_prepare(struct device *dev)
static void cm_suspend_complete(struct device *dev)
{
struct platform_device *pdev = container_of(dev, struct platform_device,
dev);
struct charger_manager *cm = platform_get_drvdata(pdev);
struct charger_manager *cm = dev_get_drvdata(dev);
if (cm_suspended) {
if (rtc_dev) {

15
drivers/power/da9052-battery.c
View File

@ -612,6 +612,7 @@ static s32 __devinit da9052_bat_probe(struct platform_device *pdev)
if (ret)
goto err;
platform_set_drvdata(pdev, bat);
return 0;
err:
@ -633,6 +634,7 @@ static int __devexit da9052_bat_remove(struct platform_device *pdev)
free_irq(bat->da9052->irq_base + irq, bat);
}
power_supply_unregister(&bat->psy);
kfree(bat);
return 0;
}
@ -645,18 +647,7 @@ static struct platform_driver da9052_bat_driver = {
.owner = THIS_MODULE,
},
};
static int __init da9052_bat_init(void)
{
return platform_driver_register(&da9052_bat_driver);
}
module_init(da9052_bat_init);
static void __exit da9052_bat_exit(void)
{
platform_driver_unregister(&da9052_bat_driver);
}
module_exit(da9052_bat_exit);
module_platform_driver(da9052_bat_driver);
MODULE_DESCRIPTION("DA9052 BAT Device Driver");
MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");

13
drivers/power/ds2782_battery.c
View File

@ -403,18 +403,7 @@ static struct i2c_driver ds278x_battery_driver = {
.remove = ds278x_battery_remove,
.id_table = ds278x_id,
};
static int __init ds278x_init(void)
{
return i2c_add_driver(&ds278x_battery_driver);
}
module_init(ds278x_init);
static void __exit ds278x_exit(void)
{
i2c_del_driver(&ds278x_battery_driver);
}
module_exit(ds278x_exit);
module_i2c_driver(ds278x_battery_driver);
MODULE_AUTHOR("Ryan Mallon");
MODULE_DESCRIPTION("Maxim/Dallas DS2782 Stand-Alone Fuel Gauage IC driver");

1
drivers/power/isp1704_charger.c
View File

@ -480,6 +480,7 @@ fail0:
dev_err(&pdev->dev, "failed to register isp1704 with error %d\n", ret);
isp1704_charger_set_power(isp, 0);
return ret;
}

125
drivers/power/lp8727_charger.c
View File

@ -1,6 +1,7 @@
/*
* Driver for LP8727 Micro/Mini USB IC with intergrated charger
* Driver for LP8727 Micro/Mini USB IC with integrated charger
*
* Copyright (C) 2011 Texas Instruments
* Copyright (C) 2011 National Semiconductor
*
* This program is free software; you can redistribute it and/or modify
@ -91,7 +92,7 @@ struct lp8727_chg {
enum lp8727_dev_id devid;
};
static int lp8727_i2c_read(struct lp8727_chg *pchg, u8 reg, u8 *data, u8 len)
static int lp8727_read_bytes(struct lp8727_chg *pchg, u8 reg, u8 *data, u8 len)
{
s32 ret;
@ -102,29 +103,22 @@ static int lp8727_i2c_read(struct lp8727_chg *pchg, u8 reg, u8 *data, u8 len)
return (ret != len) ? -EIO : 0;
}
static int lp8727_i2c_write(struct lp8727_chg *pchg, u8 reg, u8 *data, u8 len)
static inline int lp8727_read_byte(struct lp8727_chg *pchg, u8 reg, u8 *data)
{
s32 ret;
return lp8727_read_bytes(pchg, reg, data, 1);
}
static int lp8727_write_byte(struct lp8727_chg *pchg, u8 reg, u8 data)
{
int ret;
mutex_lock(&pchg->xfer_lock);
ret = i2c_smbus_write_i2c_block_data(pchg->client, reg, len, data);
ret = i2c_smbus_write_byte_data(pchg->client, reg, data);
mutex_unlock(&pchg->xfer_lock);
return ret;
}
static inline int lp8727_i2c_read_byte(struct lp8727_chg *pchg, u8 reg,
u8 *data)
{
return lp8727_i2c_read(pchg, reg, data, 1);
}
static inline int lp8727_i2c_write_byte(struct lp8727_chg *pchg, u8 reg,
u8 *data)
{
return lp8727_i2c_write(pchg, reg, data, 1);
}
static int lp8727_is_charger_attached(const char *name, int id)
{
if (name) {
@ -137,37 +131,41 @@ static int lp8727_is_charger_attached(const char *name, int id)
return (id >= ID_TA && id <= ID_USB_CHG) ? 1 : 0;
}
static void lp8727_init_device(struct lp8727_chg *pchg)
static int lp8727_init_device(struct lp8727_chg *pchg)
{
u8 val;
int ret;
val = ID200_EN | ADC_EN | CP_EN;
if (lp8727_i2c_write_byte(pchg, CTRL1, &val))
dev_err(pchg->dev, "i2c write err : addr=0x%.2x\n", CTRL1);
ret = lp8727_write_byte(pchg, CTRL1, val);
if (ret)
return ret;
val = INT_EN | CHGDET_EN;
if (lp8727_i2c_write_byte(pchg, CTRL2, &val))
dev_err(pchg->dev, "i2c write err : addr=0x%.2x\n", CTRL2);
ret = lp8727_write_byte(pchg, CTRL2, val);
if (ret)
return ret;
return 0;
}
static int lp8727_is_dedicated_charger(struct lp8727_chg *pchg)
{
u8 val;
lp8727_i2c_read_byte(pchg, STATUS1, &val);
return (val & DCPORT);
lp8727_read_byte(pchg, STATUS1, &val);
return val & DCPORT;
}
static int lp8727_is_usb_charger(struct lp8727_chg *pchg)
{
u8 val;
lp8727_i2c_read_byte(pchg, STATUS1, &val);
return (val & CHPORT);
lp8727_read_byte(pchg, STATUS1, &val);
return val & CHPORT;
}
static void lp8727_ctrl_switch(struct lp8727_chg *pchg, u8 sw)
{
u8 val = sw;
lp8727_i2c_write_byte(pchg, SWCTRL, &val);
lp8727_write_byte(pchg, SWCTRL, sw);
}
static void lp8727_id_detection(struct lp8727_chg *pchg, u8 id, int vbusin)
@ -207,9 +205,9 @@ static void lp8727_enable_chgdet(struct lp8727_chg *pchg)
{
u8 val;
lp8727_i2c_read_byte(pchg, CTRL2, &val);
lp8727_read_byte(pchg, CTRL2, &val);
val |= CHGDET_EN;
lp8727_i2c_write_byte(pchg, CTRL2, &val);
lp8727_write_byte(pchg, CTRL2, val);
}
static void lp8727_delayed_func(struct work_struct *_work)
@ -218,7 +216,7 @@ static void lp8727_delayed_func(struct work_struct *_work)
struct lp8727_chg *pchg =
container_of(_work, struct lp8727_chg, work.work);
if (lp8727_i2c_read(pchg, INT1, intstat, 2)) {
if (lp8727_read_bytes(pchg, INT1, intstat, 2)) {
dev_err(pchg->dev, "can not read INT registers\n");
return;
}
@ -244,20 +242,22 @@ static irqreturn_t lp8727_isr_func(int irq, void *ptr)
return IRQ_HANDLED;
}
static void lp8727_intr_config(struct lp8727_chg *pchg)
static int lp8727_intr_config(struct lp8727_chg *pchg)
{
INIT_DELAYED_WORK(&pchg->work, lp8727_delayed_func);
pchg->irqthread = create_singlethread_workqueue("lp8727-irqthd");
if (!pchg->irqthread)
if (!pchg->irqthread) {
dev_err(pchg->dev, "can not create thread for lp8727\n");
return -ENOMEM;
}
if (request_threaded_irq(pchg->client->irq,
return request_threaded_irq(pchg->client->irq,
NULL,
lp8727_isr_func,
IRQF_TRIGGER_FALLING, "lp8727_irq", pchg)) {
dev_err(pchg->dev, "lp8727 irq can not be registered\n");
}
IRQF_TRIGGER_FALLING,
"lp8727_irq",
pchg);
}
static enum power_supply_property lp8727_charger_prop[] = {
@ -300,7 +300,7 @@ static int lp8727_battery_get_property(struct power_supply *psy,
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
if (lp8727_is_charger_attached(psy->name, pchg->devid)) {
lp8727_i2c_read_byte(pchg, STATUS1, &read);
lp8727_read_byte(pchg, STATUS1, &read);
if (((read & CHGSTAT) >> 4) == EOC)
val->intval = POWER_SUPPLY_STATUS_FULL;
else
@ -310,7 +310,7 @@ static int lp8727_battery_get_property(struct power_supply *psy,
}
break;
case POWER_SUPPLY_PROP_HEALTH:
lp8727_i2c_read_byte(pchg, STATUS2, &read);
lp8727_read_byte(pchg, STATUS2, &read);
read = (read & TEMP_STAT) >> 5;
if (read >= 0x1 && read <= 0x3)
val->intval = POWER_SUPPLY_HEALTH_OVERHEAT;
@ -351,7 +351,7 @@ static void lp8727_charger_changed(struct power_supply *psy)
eoc_level = pchg->chg_parm->eoc_level;
ichg = pchg->chg_parm->ichg;
val = (ichg << 4) | eoc_level;
lp8727_i2c_write_byte(pchg, CHGCTRL2, &val);
lp8727_write_byte(pchg, CHGCTRL2, val);
}
}
}
@ -439,15 +439,29 @@ static int lp8727_probe(struct i2c_client *cl, const struct i2c_device_id *id)
mutex_init(&pchg->xfer_lock);
lp8727_init_device(pchg);
lp8727_intr_config(pchg);
ret = lp8727_init_device(pchg);
if (ret) {
dev_err(pchg->dev, "i2c communication err: %d", ret);
goto error;
}
ret = lp8727_intr_config(pchg);
if (ret) {
dev_err(pchg->dev, "irq handler err: %d", ret);
goto error;
}
ret = lp8727_register_psy(pchg);
if (ret)
dev_err(pchg->dev,
"can not register power supplies. err=%d", ret);
if (ret) {
dev_err(pchg->dev, "power supplies register err: %d", ret);
goto error;
}
return 0;
error:
kfree(pchg);
return ret;
}
static int __devexit lp8727_remove(struct i2c_client *cl)
@ -466,6 +480,7 @@ static const struct i2c_device_id lp8727_ids[] = {
{"lp8727", 0},
{ }
};
MODULE_DEVICE_TABLE(i2c, lp8727_ids);
static struct i2c_driver lp8727_driver = {
.driver = {
@ -475,21 +490,9 @@ static struct i2c_driver lp8727_driver = {
.remove = __devexit_p(lp8727_remove),
.id_table = lp8727_ids,
};
module_i2c_driver(lp8727_driver);
static int __init lp8727_init(void)
{
return i2c_add_driver(&lp8727_driver);
}
static void __exit lp8727_exit(void)
{
i2c_del_driver(&lp8727_driver);
}
module_init(lp8727_init);
module_exit(lp8727_exit);
MODULE_DESCRIPTION("National Semiconductor LP8727 charger driver");
MODULE_AUTHOR
("Woogyom Kim <milo.kim@ti.com>, Daniel Jeong <daniel.jeong@ti.com>");
MODULE_DESCRIPTION("TI/National Semiconductor LP8727 charger driver");
MODULE_AUTHOR("Woogyom Kim <milo.kim@ti.com>, "
"Daniel Jeong <daniel.jeong@ti.com>");
MODULE_LICENSE("GPL");

13
drivers/power/max17040_battery.c
View File

@ -290,18 +290,7 @@ static struct i2c_driver max17040_i2c_driver = {
.resume = max17040_resume,
.id_table = max17040_id,
};
static int __init max17040_init(void)
{
return i2c_add_driver(&max17040_i2c_driver);
}
module_init(max17040_init);
static void __exit max17040_exit(void)
{
i2c_del_driver(&max17040_i2c_driver);
}
module_exit(max17040_exit);
module_i2c_driver(max17040_i2c_driver);
MODULE_AUTHOR("Minkyu Kang <mk7.kang@samsung.com>");
MODULE_DESCRIPTION("MAX17040 Fuel Gauge");

506
drivers/power/max17042_battery.c
View File

@ -26,14 +26,47 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/mod_devicetable.h>
#include <linux/power_supply.h>
#include <linux/power/max17042_battery.h>
#include <linux/of.h>
/* Status register bits */
#define STATUS_POR_BIT (1 << 1)
#define STATUS_BST_BIT (1 << 3)
#define STATUS_VMN_BIT (1 << 8)
#define STATUS_TMN_BIT (1 << 9)
#define STATUS_SMN_BIT (1 << 10)
#define STATUS_BI_BIT (1 << 11)
#define STATUS_VMX_BIT (1 << 12)
#define STATUS_TMX_BIT (1 << 13)
#define STATUS_SMX_BIT (1 << 14)
#define STATUS_BR_BIT (1 << 15)
/* Interrupt mask bits */
#define CONFIG_ALRT_BIT_ENBL (1 << 2)
#define STATUS_INTR_SOCMIN_BIT (1 << 10)
#define STATUS_INTR_SOCMAX_BIT (1 << 14)
#define VFSOC0_LOCK 0x0000
#define VFSOC0_UNLOCK 0x0080
#define MODEL_UNLOCK1 0X0059
#define MODEL_UNLOCK2 0X00C4
#define MODEL_LOCK1 0X0000
#define MODEL_LOCK2 0X0000
#define dQ_ACC_DIV 0x4
#define dP_ACC_100 0x1900
#define dP_ACC_200 0x3200
struct max17042_chip {
struct i2c_client *client;
struct power_supply battery;
struct max17042_platform_data *pdata;
struct work_struct work;
int init_complete;
};
static int max17042_write_reg(struct i2c_client *client, u8 reg, u16 value)
@ -87,6 +120,9 @@ static int max17042_get_property(struct power_supply *psy,
struct max17042_chip, battery);
int ret;
if (!chip->init_complete)
return -EAGAIN;
switch (psp) {
case POWER_SUPPLY_PROP_PRESENT:
ret = max17042_read_reg(chip->client, MAX17042_STATUS);
@ -136,21 +172,18 @@ static int max17042_get_property(struct power_supply *psy,
val->intval = ret * 625 / 8;
break;
case POWER_SUPPLY_PROP_CAPACITY:
ret = max17042_read_reg(chip->client, MAX17042_SOC);
ret = max17042_read_reg(chip->client, MAX17042_RepSOC);
if (ret < 0)
return ret;
val->intval = ret >> 8;
break;
case POWER_SUPPLY_PROP_CHARGE_FULL:
ret = max17042_read_reg(chip->client, MAX17042_RepSOC);
ret = max17042_read_reg(chip->client, MAX17042_FullCAP);
if (ret < 0)
return ret;
if ((ret >> 8) >= MAX17042_BATTERY_FULL)
val->intval = 1;
else if (ret >= 0)
val->intval = 0;
val->intval = ret * 1000 / 2;
break;
case POWER_SUPPLY_PROP_TEMP:
ret = max17042_read_reg(chip->client, MAX17042_TEMP);
@ -210,22 +243,419 @@ static int max17042_get_property(struct power_supply *psy,
return 0;
}
static int max17042_write_verify_reg(struct i2c_client *client,
u8 reg, u16 value)
{
int retries = 8;
int ret;
u16 read_value;
do {
ret = i2c_smbus_write_word_data(client, reg, value);
read_value = max17042_read_reg(client, reg);
if (read_value != value) {
ret = -EIO;
retries--;
}
} while (retries && read_value != value);
if (ret < 0)
dev_err(&client->dev, "%s: err %d\n", __func__, ret);
return ret;
}
static inline void max17042_override_por(
struct i2c_client *client, u8 reg, u16 value)
{
if (value)
max17042_write_reg(client, reg, value);
}
static inline void max10742_unlock_model(struct max17042_chip *chip)
{
struct i2c_client *client = chip->client;
max17042_write_reg(client, MAX17042_MLOCKReg1, MODEL_UNLOCK1);
max17042_write_reg(client, MAX17042_MLOCKReg2, MODEL_UNLOCK2);
}
static inline void max10742_lock_model(struct max17042_chip *chip)
{
struct i2c_client *client = chip->client;
max17042_write_reg(client, MAX17042_MLOCKReg1, MODEL_LOCK1);
max17042_write_reg(client, MAX17042_MLOCKReg2, MODEL_LOCK2);
}
static inline void max17042_write_model_data(struct max17042_chip *chip,
u8 addr, int size)
{
struct i2c_client *client = chip->client;
int i;
for (i = 0; i < size; i++)
max17042_write_reg(client, addr + i,
chip->pdata->config_data->cell_char_tbl[i]);
}
static inline void max17042_read_model_data(struct max17042_chip *chip,
u8 addr, u16 *data, int size)
{
struct i2c_client *client = chip->client;
int i;
for (i = 0; i < size; i++)
data[i] = max17042_read_reg(client, addr + i);
}
static inline int max17042_model_data_compare(struct max17042_chip *chip,
u16 *data1, u16 *data2, int size)
{
int i;
if (memcmp(data1, data2, size)) {
dev_err(&chip->client->dev, "%s compare failed\n", __func__);
for (i = 0; i < size; i++)
dev_info(&chip->client->dev, "0x%x, 0x%x",
data1[i], data2[i]);
dev_info(&chip->client->dev, "\n");
return -EINVAL;
}
return 0;
}
static int max17042_init_model(struct max17042_chip *chip)
{
int ret;
int table_size =
sizeof(chip->pdata->config_data->cell_char_tbl)/sizeof(u16);
u16 *temp_data;
temp_data = kzalloc(table_size, GFP_KERNEL);
if (!temp_data)
return -ENOMEM;
max10742_unlock_model(chip);
max17042_write_model_data(chip, MAX17042_MODELChrTbl,
table_size);
max17042_read_model_data(chip, MAX17042_MODELChrTbl, temp_data,
table_size);
ret = max17042_model_data_compare(
chip,
chip->pdata->config_data->cell_char_tbl,
temp_data,
table_size);
max10742_lock_model(chip);
kfree(temp_data);
return ret;
}
static int max17042_verify_model_lock(struct max17042_chip *chip)
{
int i;
int table_size =
sizeof(chip->pdata->config_data->cell_char_tbl);
u16 *temp_data;
int ret = 0;
temp_data = kzalloc(table_size, GFP_KERNEL);
if (!temp_data)
return -ENOMEM;
max17042_read_model_data(chip, MAX17042_MODELChrTbl, temp_data,
table_size);
for (i = 0; i < table_size; i++)
if (temp_data[i])
ret = -EINVAL;
kfree(temp_data);
return ret;
}
static void max17042_write_config_regs(struct max17042_chip *chip)
{
struct max17042_config_data *config = chip->pdata->config_data;
max17042_write_reg(chip->client, MAX17042_CONFIG, config->config);
max17042_write_reg(chip->client, MAX17042_LearnCFG, config->learn_cfg);
max17042_write_reg(chip->client, MAX17042_FilterCFG,
config->filter_cfg);
max17042_write_reg(chip->client, MAX17042_RelaxCFG, config->relax_cfg);
}
static void max17042_write_custom_regs(struct max17042_chip *chip)
{
struct max17042_config_data *config = chip->pdata->config_data;
max17042_write_verify_reg(chip->client, MAX17042_RCOMP0,
config->rcomp0);
max17042_write_verify_reg(chip->client, MAX17042_TempCo,
config->tcompc0);
max17042_write_reg(chip->client, MAX17042_EmptyTempCo,
config->empty_tempco);
max17042_write_verify_reg(chip->client, MAX17042_K_empty0,
config->kempty0);
max17042_write_verify_reg(chip->client, MAX17042_ICHGTerm,
config->ichgt_term);
}
static void max17042_update_capacity_regs(struct max17042_chip *chip)
{
struct max17042_config_data *config = chip->pdata->config_data;
max17042_write_verify_reg(chip->client, MAX17042_FullCAP,
config->fullcap);
max17042_write_reg(chip->client, MAX17042_DesignCap,
config->design_cap);
max17042_write_verify_reg(chip->client, MAX17042_FullCAPNom,
config->fullcapnom);
}
static void max17042_reset_vfsoc0_reg(struct max17042_chip *chip)
{
u16 vfSoc;
vfSoc = max17042_read_reg(chip->client, MAX17042_VFSOC);
max17042_write_reg(chip->client, MAX17042_VFSOC0Enable, VFSOC0_UNLOCK);
max17042_write_verify_reg(chip->client, MAX17042_VFSOC0, vfSoc);
max17042_write_reg(chip->client, MAX17042_VFSOC0Enable, VFSOC0_LOCK);
}
static void max17042_load_new_capacity_params(struct max17042_chip *chip)
{
u16 full_cap0, rep_cap, dq_acc, vfSoc;
u32 rem_cap;
struct max17042_config_data *config = chip->pdata->config_data;
full_cap0 = max17042_read_reg(chip->client, MAX17042_FullCAP0);
vfSoc = max17042_read_reg(chip->client, MAX17042_VFSOC);
/* fg_vfSoc needs to shifted by 8 bits to get the
* perc in 1% accuracy, to get the right rem_cap multiply
* full_cap0, fg_vfSoc and devide by 100
*/
rem_cap = ((vfSoc >> 8) * full_cap0) / 100;
max17042_write_verify_reg(chip->client, MAX17042_RemCap, (u16)rem_cap);
rep_cap = (u16)rem_cap;
max17042_write_verify_reg(chip->client, MAX17042_RepCap, rep_cap);
/* Write dQ_acc to 200% of Capacity and dP_acc to 200% */
dq_acc = config->fullcap / dQ_ACC_DIV;
max17042_write_verify_reg(chip->client, MAX17042_dQacc, dq_acc);
max17042_write_verify_reg(chip->client, MAX17042_dPacc, dP_ACC_200);
max17042_write_verify_reg(chip->client, MAX17042_FullCAP,
config->fullcap);
max17042_write_reg(chip->client, MAX17042_DesignCap,
config->design_cap);
max17042_write_verify_reg(chip->client, MAX17042_FullCAPNom,
config->fullcapnom);
}
/*
* Block write all the override values coming from platform data.
* This function MUST be called before the POR initialization proceedure
* specified by maxim.
*/
static inline void max17042_override_por_values(struct max17042_chip *chip)
{
struct i2c_client *client = chip->client;
struct max17042_config_data *config = chip->pdata->config_data;
max17042_override_por(client, MAX17042_TGAIN, config->tgain);
max17042_override_por(client, MAx17042_TOFF, config->toff);
max17042_override_por(client, MAX17042_CGAIN, config->cgain);
max17042_override_por(client, MAX17042_COFF, config->coff);
max17042_override_por(client, MAX17042_VALRT_Th, config->valrt_thresh);
max17042_override_por(client, MAX17042_TALRT_Th, config->talrt_thresh);
max17042_override_por(client, MAX17042_SALRT_Th,
config->soc_alrt_thresh);
max17042_override_por(client, MAX17042_CONFIG, config->config);
max17042_override_por(client, MAX17042_SHDNTIMER, config->shdntimer);
max17042_override_por(client, MAX17042_DesignCap, config->design_cap);
max17042_override_por(client, MAX17042_ICHGTerm, config->ichgt_term);
max17042_override_por(client, MAX17042_AtRate, config->at_rate);
max17042_override_por(client, MAX17042_LearnCFG, config->learn_cfg);
max17042_override_por(client, MAX17042_FilterCFG, config->filter_cfg);
max17042_override_por(client, MAX17042_RelaxCFG, config->relax_cfg);
max17042_override_por(client, MAX17042_MiscCFG, config->misc_cfg);
max17042_override_por(client, MAX17042_MaskSOC, config->masksoc);
max17042_override_por(client, MAX17042_FullCAP, config->fullcap);
max17042_override_por(client, MAX17042_FullCAPNom, config->fullcapnom);
max17042_override_por(client, MAX17042_SOC_empty, config->socempty);
max17042_override_por(client, MAX17042_LAvg_empty, config->lavg_empty);
max17042_override_por(client, MAX17042_dQacc, config->dqacc);
max17042_override_por(client, MAX17042_dPacc, config->dpacc);
max17042_override_por(client, MAX17042_V_empty, config->vempty);
max17042_override_por(client, MAX17042_TempNom, config->temp_nom);
max17042_override_por(client, MAX17042_TempLim, config->temp_lim);
max17042_override_por(client, MAX17042_FCTC, config->fctc);
max17042_override_por(client, MAX17042_RCOMP0, config->rcomp0);
max17042_override_por(client, MAX17042_TempCo, config->tcompc0);
max17042_override_por(client, MAX17042_EmptyTempCo,
config->empty_tempco);
max17042_override_por(client, MAX17042_K_empty0, config->kempty0);
}
static int max17042_init_chip(struct max17042_chip *chip)
{
int ret;
int val;
max17042_override_por_values(chip);
/* After Power up, the MAX17042 requires 500mS in order
* to perform signal debouncing and initial SOC reporting
*/
msleep(500);
/* Initialize configaration */
max17042_write_config_regs(chip);
/* write cell characterization data */
ret = max17042_init_model(chip);
if (ret) {
dev_err(&chip->client->dev, "%s init failed\n",
__func__);
return -EIO;
}
max17042_verify_model_lock(chip);
if (ret) {
dev_err(&chip->client->dev, "%s lock verify failed\n",
__func__);
return -EIO;
}
/* write custom parameters */
max17042_write_custom_regs(chip);
/* update capacity params */
max17042_update_capacity_regs(chip);
/* delay must be atleast 350mS to allow VFSOC
* to be calculated from the new configuration
*/
msleep(350);
/* reset vfsoc0 reg */
max17042_reset_vfsoc0_reg(chip);
/* load new capacity params */
max17042_load_new_capacity_params(chip);
/* Init complete, Clear the POR bit */
val = max17042_read_reg(chip->client, MAX17042_STATUS);
max17042_write_reg(chip->client, MAX17042_STATUS,
val & (~STATUS_POR_BIT));
return 0;
}
static void max17042_set_soc_threshold(struct max17042_chip *chip, u16 off)
{
u16 soc, soc_tr;
/* program interrupt thesholds such that we should
* get interrupt for every 'off' perc change in the soc
*/
soc = max17042_read_reg(chip->client, MAX17042_RepSOC) >> 8;
soc_tr = (soc + off) << 8;
soc_tr |= (soc - off);
max17042_write_reg(chip->client, MAX17042_SALRT_Th, soc_tr);
}
static irqreturn_t max17042_thread_handler(int id, void *dev)
{
struct max17042_chip *chip = dev;
u16 val;
val = max17042_read_reg(chip->client, MAX17042_STATUS);
if ((val & STATUS_INTR_SOCMIN_BIT) ||
(val & STATUS_INTR_SOCMAX_BIT)) {
dev_info(&chip->client->dev, "SOC threshold INTR\n");
max17042_set_soc_threshold(chip, 1);
}
power_supply_changed(&chip->battery);
return IRQ_HANDLED;
}
static void max17042_init_worker(struct work_struct *work)
{
struct max17042_chip *chip = container_of(work,
struct max17042_chip, work);
int ret;
/* Initialize registers according to values from the platform data */
if (chip->pdata->enable_por_init && chip->pdata->config_data) {
ret = max17042_init_chip(chip);
if (ret)
return;
}
chip->init_complete = 1;
}
#ifdef CONFIG_OF
static struct max17042_platform_data *
max17042_get_pdata(struct device *dev)
{
struct device_node *np = dev->of_node;
u32 prop;
struct max17042_platform_data *pdata;
if (!np)
return dev->platform_data;
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return NULL;
/*
* Require current sense resistor value to be specified for
* current-sense functionality to be enabled at all.
*/
if (of_property_read_u32(np, "maxim,rsns-microohm", &prop) == 0) {
pdata->r_sns = prop;
pdata->enable_current_sense = true;
}
return pdata;
}
#else
static struct max17042_platform_data *
max17042_get_pdata(struct device *dev)
{
return dev->platform_data;
}
#endif
static int __devinit max17042_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
struct max17042_chip *chip;
int ret;
int reg;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA))
return -EIO;
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
chip->client = client;
chip->pdata = client->dev.platform_data;
chip->pdata = max17042_get_pdata(&client->dev);
if (!chip->pdata) {
dev_err(&client->dev, "no platform data provided\n");
return -EINVAL;
}
i2c_set_clientdata(client, chip);
@ -243,14 +673,6 @@ static int __devinit max17042_probe(struct i2c_client *client,
if (chip->pdata->r_sns == 0)
chip->pdata->r_sns = MAX17042_DEFAULT_SNS_RESISTOR;
ret = power_supply_register(&client->dev, &chip->battery);
if (ret) {
dev_err(&client->dev, "failed: power supply register\n");
kfree(chip);
return ret;
}
/* Initialize registers according to values from the platform data */
if (chip->pdata->init_data)
max17042_set_reg(client, chip->pdata->init_data,
chip->pdata->num_init_data);
@ -261,7 +683,34 @@ static int __devinit max17042_probe(struct i2c_client *client,
max17042_write_reg(client, MAX17042_LearnCFG, 0x0007);
}
return 0;
if (client->irq) {
ret = request_threaded_irq(client->irq, NULL,
max17042_thread_handler,
IRQF_TRIGGER_FALLING,
chip->battery.name, chip);
if (!ret) {
reg = max17042_read_reg(client, MAX17042_CONFIG);
reg |= CONFIG_ALRT_BIT_ENBL;
max17042_write_reg(client, MAX17042_CONFIG, reg);
max17042_set_soc_threshold(chip, 1);
} else
dev_err(&client->dev, "%s(): cannot get IRQ\n",
__func__);
}
reg = max17042_read_reg(chip->client, MAX17042_STATUS);
if (reg & STATUS_POR_BIT) {
INIT_WORK(&chip->work, max17042_init_worker);
schedule_work(&chip->work);
} else {
chip->init_complete = 1;
}
ret = power_supply_register(&client->dev, &chip->battery);
if (ret)
dev_err(&client->dev, "failed: power supply register\n");
return ret;
}
static int __devexit max17042_remove(struct i2c_client *client)
@ -269,10 +718,17 @@ static int __devexit max17042_remove(struct i2c_client *client)
struct max17042_chip *chip = i2c_get_clientdata(client);
power_supply_unregister(&chip->battery);
kfree(chip);
return 0;
}
#ifdef CONFIG_OF
static const struct of_device_id max17042_dt_match[] = {
{ .compatible = "maxim,max17042" },
{ },
};
MODULE_DEVICE_TABLE(of, max17042_dt_match);
#endif
static const struct i2c_device_id max17042_id[] = {
{ "max17042", 0 },
{ }
@ -282,23 +738,13 @@ MODULE_DEVICE_TABLE(i2c, max17042_id);
static struct i2c_driver max17042_i2c_driver = {
.driver = {
.name = "max17042",
.of_match_table = of_match_ptr(max17042_dt_match),
},
.probe = max17042_probe,
.remove = __devexit_p(max17042_remove),
.id_table = max17042_id,
};
static int __init max17042_init(void)
{
return i2c_add_driver(&max17042_i2c_driver);
}
module_init(max17042_init);
static void __exit max17042_exit(void)
{
i2c_del_driver(&max17042_i2c_driver);
}
module_exit(max17042_exit);
module_i2c_driver(max17042_i2c_driver);
MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
MODULE_DESCRIPTION("MAX17042 Fuel Gauge");

13
drivers/power/sbs-battery.c
View File

@ -852,18 +852,7 @@ static struct i2c_driver sbs_battery_driver = {
.of_match_table = sbs_dt_ids,
},
};
static int __init sbs_battery_init(void)
{
return i2c_add_driver(&sbs_battery_driver);
}
module_init(sbs_battery_init);
static void __exit sbs_battery_exit(void)
{
i2c_del_driver(&sbs_battery_driver);
}
module_exit(sbs_battery_exit);
module_i2c_driver(sbs_battery_driver);
MODULE_DESCRIPTION("SBS battery monitor driver");
MODULE_LICENSE("GPL");

1294
drivers/power/smb347-charger.c Normal file
View File

File diff suppressed because it is too large Load Diff

14
drivers/power/z2_battery.c
View File

@ -316,19 +316,7 @@ static struct i2c_driver z2_batt_driver = {
.remove = __devexit_p(z2_batt_remove),
.id_table = z2_batt_id,
};
static int __init z2_batt_init(void)
{
return i2c_add_driver(&z2_batt_driver);
}
static void __exit z2_batt_exit(void)
{
i2c_del_driver(&z2_batt_driver);
}
module_init(z2_batt_init);
module_exit(z2_batt_exit);
module_i2c_driver(z2_batt_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Peter Edwards <sweetlilmre@gmail.com>");

18
include/linux/lp8727.h
View File

@ -1,4 +1,7 @@
/*
* LP8727 Micro/Mini USB IC with integrated charger
*
* Copyright (C) 2011 Texas Instruments
* Copyright (C) 2011 National Semiconductor
*
* This program is free software; you can redistribute it and/or modify
@ -32,13 +35,24 @@ enum lp8727_ichg {
ICHG_1000mA,
};
/**
* struct lp8727_chg_param
* @eoc_level : end of charge level setting
* @ichg : charging current
*/
struct lp8727_chg_param {
/* end of charge level setting */
enum lp8727_eoc_level eoc_level;
/* charging current */
enum lp8727_ichg ichg;
};
/**
* struct lp8727_platform_data
* @get_batt_present : check battery status - exists or not
* @get_batt_level : get battery voltage (mV)
* @get_batt_capacity : get battery capacity (%)
* @get_batt_temp : get battery temperature
* @ac, @usb : charging parameters each charger type
*/
struct lp8727_platform_data {
u8 (*get_batt_present)(void);
u16 (*get_batt_level)(void);

273
include/linux/mfd/abx500.h
View File

@ -146,6 +146,279 @@ struct abx500_init_settings {
u8 setting;
};
/* Battery driver related data */
/*
* ADC for the battery thermistor.
* When using the ABx500_ADC_THERM_BATCTRL the battery ID resistor is combined
* with a NTC resistor to both identify the battery and to measure its
* temperature. Different phone manufactures uses different techniques to both
* identify the battery and to read its temperature.
*/
enum abx500_adc_therm {
ABx500_ADC_THERM_BATCTRL,
ABx500_ADC_THERM_BATTEMP,
};
/**
* struct abx500_res_to_temp - defines one point in a temp to res curve. To
* be used in battery packs that combines the identification resistor with a
* NTC resistor.
* @temp: battery pack temperature in Celcius
* @resist: NTC resistor net total resistance
*/
struct abx500_res_to_temp {
int temp;
int resist;
};
/**
* struct abx500_v_to_cap - Table for translating voltage to capacity
* @voltage: Voltage in mV
* @capacity: Capacity in percent
*/
struct abx500_v_to_cap {
int voltage;
int capacity;
};
/* Forward declaration */
struct abx500_fg;
/**
* struct abx500_fg_parameters - Fuel gauge algorithm parameters, in seconds
* if not specified
* @recovery_sleep_timer: Time between measurements while recovering
* @recovery_total_time: Total recovery time
* @init_timer: Measurement interval during startup
* @init_discard_time: Time we discard voltage measurement at startup
* @init_total_time: Total init time during startup
* @high_curr_time: Time current has to be high to go to recovery
* @accu_charging: FG accumulation time while charging
* @accu_high_curr: FG accumulation time in high current mode
* @high_curr_threshold: High current threshold, in mA
* @lowbat_threshold: Low battery threshold, in mV
* @overbat_threshold: Over battery threshold, in mV
* @battok_falling_th_sel0 Threshold in mV for battOk signal sel0
* Resolution in 50 mV step.
* @battok_raising_th_sel1 Threshold in mV for battOk signal sel1
* Resolution in 50 mV step.
* @user_cap_limit Capacity reported from user must be within this
* limit to be considered as sane, in percentage
* points.
* @maint_thres This is the threshold where we stop reporting
* battery full while in maintenance, in per cent
*/
struct abx500_fg_parameters {
int recovery_sleep_timer;
int recovery_total_time;
int init_timer;
int init_discard_time;
int init_total_time;
int high_curr_time;
int accu_charging;
int accu_high_curr;
int high_curr_threshold;
int lowbat_threshold;
int overbat_threshold;
int battok_falling_th_sel0;
int battok_raising_th_sel1;
int user_cap_limit;
int maint_thres;
};
/**
* struct abx500_charger_maximization - struct used by the board config.
* @use_maxi: Enable maximization for this battery type
* @maxi_chg_curr: Maximum charger current allowed
* @maxi_wait_cycles: cycles to wait before setting charger current
* @charger_curr_step delta between two charger current settings (mA)
*/
struct abx500_maxim_parameters {
bool ena_maxi;
int chg_curr;
int wait_cycles;
int charger_curr_step;
};
/**
* struct abx500_battery_type - different batteries supported
* @name: battery technology
* @resis_high: battery upper resistance limit
* @resis_low: battery lower resistance limit
* @charge_full_design: Maximum battery capacity in mAh
* @nominal_voltage: Nominal voltage of the battery in mV
* @termination_vol: max voltage upto which battery can be charged
* @termination_curr battery charging termination current in mA
* @recharge_vol battery voltage limit that will trigger a new
* full charging cycle in the case where maintenan-
* -ce charging has been disabled
* @normal_cur_lvl: charger current in normal state in mA
* @normal_vol_lvl: charger voltage in normal state in mV
* @maint_a_cur_lvl: charger current in maintenance A state in mA
* @maint_a_vol_lvl: charger voltage in maintenance A state in mV
* @maint_a_chg_timer_h: charge time in maintenance A state
* @maint_b_cur_lvl: charger current in maintenance B state in mA
* @maint_b_vol_lvl: charger voltage in maintenance B state in mV
* @maint_b_chg_timer_h: charge time in maintenance B state
* @low_high_cur_lvl: charger current in temp low/high state in mA
* @low_high_vol_lvl: charger voltage in temp low/high state in mV'
* @battery_resistance: battery inner resistance in mOhm.
* @n_r_t_tbl_elements: number of elements in r_to_t_tbl
* @r_to_t_tbl: table containing resistance to temp points
* @n_v_cap_tbl_elements: number of elements in v_to_cap_tbl
* @v_to_cap_tbl: Voltage to capacity (in %) table
* @n_batres_tbl_elements number of elements in the batres_tbl
* @batres_tbl battery internal resistance vs temperature table
*/
struct abx500_battery_type {
int name;
int resis_high;
int resis_low;
int charge_full_design;
int nominal_voltage;
int termination_vol;
int termination_curr;
int recharge_vol;
int normal_cur_lvl;
int normal_vol_lvl;
int maint_a_cur_lvl;
int maint_a_vol_lvl;
int maint_a_chg_timer_h;
int maint_b_cur_lvl;
int maint_b_vol_lvl;
int maint_b_chg_timer_h;
int low_high_cur_lvl;
int low_high_vol_lvl;
int battery_resistance;
int n_temp_tbl_elements;
struct abx500_res_to_temp *r_to_t_tbl;
int n_v_cap_tbl_elements;
struct abx500_v_to_cap *v_to_cap_tbl;
int n_batres_tbl_elements;
struct batres_vs_temp *batres_tbl;
};
/**
* struct abx500_bm_capacity_levels - abx500 capacity level data
* @critical: critical capacity level in percent
* @low: low capacity level in percent
* @normal: normal capacity level in percent
* @high: high capacity level in percent
* @full: full capacity level in percent
*/
struct abx500_bm_capacity_levels {
int critical;
int low;
int normal;
int high;
int full;
};
/**
* struct abx500_bm_charger_parameters - Charger specific parameters
* @usb_volt_max: maximum allowed USB charger voltage in mV
* @usb_curr_max: maximum allowed USB charger current in mA
* @ac_volt_max: maximum allowed AC charger voltage in mV
* @ac_curr_max: maximum allowed AC charger current in mA
*/
struct abx500_bm_charger_parameters {
int usb_volt_max;
int usb_curr_max;
int ac_volt_max;
int ac_curr_max;
};
/**
* struct abx500_bm_data - abx500 battery management data
* @temp_under under this temp, charging is stopped
* @temp_low between this temp and temp_under charging is reduced
* @temp_high between this temp and temp_over charging is reduced
* @temp_over over this temp, charging is stopped
* @temp_now present battery temperature
* @temp_interval_chg temperature measurement interval in s when charging
* @temp_interval_nochg temperature measurement interval in s when not charging
* @main_safety_tmr_h safety timer for main charger
* @usb_safety_tmr_h safety timer for usb charger
* @bkup_bat_v voltage which we charge the backup battery with
* @bkup_bat_i current which we charge the backup battery with
* @no_maintenance indicates that maintenance charging is disabled
* @abx500_adc_therm placement of thermistor, batctrl or battemp adc
* @chg_unknown_bat flag to enable charging of unknown batteries
* @enable_overshoot flag to enable VBAT overshoot control
* @auto_trig flag to enable auto adc trigger
* @fg_res resistance of FG resistor in 0.1mOhm
* @n_btypes number of elements in array bat_type
* @batt_id index of the identified battery in array bat_type
* @interval_charging charge alg cycle period time when charging (sec)
* @interval_not_charging charge alg cycle period time when not charging (sec)
* @temp_hysteresis temperature hysteresis
* @gnd_lift_resistance Battery ground to phone ground resistance (mOhm)
* @maxi: maximization parameters
* @cap_levels capacity in percent for the different capacity levels
* @bat_type table of supported battery types
* @chg_params charger parameters
* @fg_params fuel gauge parameters
*/
struct abx500_bm_data {
int temp_under;
int temp_low;
int temp_high;
int temp_over;
int temp_now;
int temp_interval_chg;
int temp_interval_nochg;
int main_safety_tmr_h;
int usb_safety_tmr_h;
int bkup_bat_v;
int bkup_bat_i;
bool no_maintenance;
bool chg_unknown_bat;
bool enable_overshoot;
bool auto_trig;
enum abx500_adc_therm adc_therm;
int fg_res;
int n_btypes;
int batt_id;
int interval_charging;
int interval_not_charging;
int temp_hysteresis;
int gnd_lift_resistance;
const struct abx500_maxim_parameters *maxi;
const struct abx500_bm_capacity_levels *cap_levels;
const struct abx500_battery_type *bat_type;
const struct abx500_bm_charger_parameters *chg_params;
const struct abx500_fg_parameters *fg_params;
};
struct abx500_chargalg_platform_data {
char **supplied_to;
size_t num_supplicants;
};
struct abx500_charger_platform_data {
char **supplied_to;
size_t num_supplicants;
bool autopower_cfg;
};
struct abx500_btemp_platform_data {
char **supplied_to;
size_t num_supplicants;
};
struct abx500_fg_platform_data {
char **supplied_to;
size_t num_supplicants;
};
struct abx500_bm_plat_data {
struct abx500_bm_data *battery;
struct abx500_charger_platform_data *charger;
struct abx500_btemp_platform_data *btemp;
struct abx500_fg_platform_data *fg;
struct abx500_chargalg_platform_data *chargalg;
};
int abx500_set_register_interruptible(struct device *dev, u8 bank, u8 reg,
u8 value);
int abx500_get_register_interruptible(struct device *dev, u8 bank, u8 reg,

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/*
* Copyright ST-Ericsson 2012.
*
* Author: Arun Murthy <arun.murthy@stericsson.com>
* Licensed under GPLv2.
*/
#ifndef _AB8500_BM_H
#define _AB8500_BM_H
#include <linux/kernel.h>
#include <linux/mfd/abx500.h>
/*
* System control 2 register offsets.
* bank = 0x02
*/
#define AB8500_MAIN_WDOG_CTRL_REG 0x01
#define AB8500_LOW_BAT_REG 0x03
#define AB8500_BATT_OK_REG 0x04
/*
* USB/ULPI register offsets
* Bank : 0x5
*/
#define AB8500_USB_LINE_STAT_REG 0x80
/*
* Charger / status register offfsets
* Bank : 0x0B
*/
#define AB8500_CH_STATUS1_REG 0x00
#define AB8500_CH_STATUS2_REG 0x01
#define AB8500_CH_USBCH_STAT1_REG 0x02
#define AB8500_CH_USBCH_STAT2_REG 0x03
#define AB8500_CH_FSM_STAT_REG 0x04
#define AB8500_CH_STAT_REG 0x05
/*
* Charger / control register offfsets
* Bank : 0x0B
*/
#define AB8500_CH_VOLT_LVL_REG 0x40
#define AB8500_CH_VOLT_LVL_MAX_REG 0x41 /*Only in Cut2.0*/
#define AB8500_CH_OPT_CRNTLVL_REG 0x42
#define AB8500_CH_OPT_CRNTLVL_MAX_REG 0x43 /*Only in Cut2.0*/
#define AB8500_CH_WD_TIMER_REG 0x50
#define AB8500_CHARG_WD_CTRL 0x51
#define AB8500_BTEMP_HIGH_TH 0x52
#define AB8500_LED_INDICATOR_PWM_CTRL 0x53
#define AB8500_LED_INDICATOR_PWM_DUTY 0x54
#define AB8500_BATT_OVV 0x55
#define AB8500_CHARGER_CTRL 0x56
#define AB8500_BAT_CTRL_CURRENT_SOURCE 0x60 /*Only in Cut2.0*/
/*
* Charger / main control register offsets
* Bank : 0x0B
*/
#define AB8500_MCH_CTRL1 0x80
#define AB8500_MCH_CTRL2 0x81
#define AB8500_MCH_IPT_CURLVL_REG 0x82
#define AB8500_CH_WD_REG 0x83
/*
* Charger / USB control register offsets
* Bank : 0x0B
*/
#define AB8500_USBCH_CTRL1_REG 0xC0
#define AB8500_USBCH_CTRL2_REG 0xC1
#define AB8500_USBCH_IPT_CRNTLVL_REG 0xC2
/*
* Gas Gauge register offsets
* Bank : 0x0C
*/
#define AB8500_GASG_CC_CTRL_REG 0x00
#define AB8500_GASG_CC_ACCU1_REG 0x01
#define AB8500_GASG_CC_ACCU2_REG 0x02
#define AB8500_GASG_CC_ACCU3_REG 0x03
#define AB8500_GASG_CC_ACCU4_REG 0x04
#define AB8500_GASG_CC_SMPL_CNTRL_REG 0x05
#define AB8500_GASG_CC_SMPL_CNTRH_REG 0x06
#define AB8500_GASG_CC_SMPL_CNVL_REG 0x07
#define AB8500_GASG_CC_SMPL_CNVH_REG 0x08
#define AB8500_GASG_CC_CNTR_AVGOFF_REG 0x09
#define AB8500_GASG_CC_OFFSET_REG 0x0A
#define AB8500_GASG_CC_NCOV_ACCU 0x10
#define AB8500_GASG_CC_NCOV_ACCU_CTRL 0x11
#define AB8500_GASG_CC_NCOV_ACCU_LOW 0x12
#define AB8500_GASG_CC_NCOV_ACCU_MED 0x13
#define AB8500_GASG_CC_NCOV_ACCU_HIGH 0x14
/*
* Interrupt register offsets
* Bank : 0x0E
*/
#define AB8500_IT_SOURCE2_REG 0x01
#define AB8500_IT_SOURCE21_REG 0x14
/*
* RTC register offsets
* Bank: 0x0F
*/
#define AB8500_RTC_BACKUP_CHG_REG 0x0C
#define AB8500_RTC_CC_CONF_REG 0x01
#define AB8500_RTC_CTRL_REG 0x0B
/*
* OTP register offsets
* Bank : 0x15
*/
#define AB8500_OTP_CONF_15 0x0E
/* GPADC constants from AB8500 spec, UM0836 */
#define ADC_RESOLUTION 1024
#define ADC_CH_MAIN_MIN 0
#define ADC_CH_MAIN_MAX 20030
#define ADC_CH_VBUS_MIN 0
#define ADC_CH_VBUS_MAX 20030
#define ADC_CH_VBAT_MIN 2300
#define ADC_CH_VBAT_MAX 4800
#define ADC_CH_BKBAT_MIN 0
#define ADC_CH_BKBAT_MAX 3200
/* Main charge i/p current */
#define MAIN_CH_IP_CUR_0P9A 0x80
#define MAIN_CH_IP_CUR_1P0A 0x90
#define MAIN_CH_IP_CUR_1P1A 0xA0
#define MAIN_CH_IP_CUR_1P2A 0xB0
#define MAIN_CH_IP_CUR_1P3A 0xC0
#define MAIN_CH_IP_CUR_1P4A 0xD0
#define MAIN_CH_IP_CUR_1P5A 0xE0
/* ChVoltLevel */
#define CH_VOL_LVL_3P5 0x00
#define CH_VOL_LVL_4P0 0x14
#define CH_VOL_LVL_4P05 0x16
#define CH_VOL_LVL_4P1 0x1B
#define CH_VOL_LVL_4P15 0x20
#define CH_VOL_LVL_4P2 0x25
#define CH_VOL_LVL_4P6 0x4D
/* ChOutputCurrentLevel */
#define CH_OP_CUR_LVL_0P1 0x00
#define CH_OP_CUR_LVL_0P2 0x01
#define CH_OP_CUR_LVL_0P3 0x02
#define CH_OP_CUR_LVL_0P4 0x03
#define CH_OP_CUR_LVL_0P5 0x04
#define CH_OP_CUR_LVL_0P6 0x05
#define CH_OP_CUR_LVL_0P7 0x06
#define CH_OP_CUR_LVL_0P8 0x07
#define CH_OP_CUR_LVL_0P9 0x08
#define CH_OP_CUR_LVL_1P4 0x0D
#define CH_OP_CUR_LVL_1P5 0x0E
#define CH_OP_CUR_LVL_1P6 0x0F
/* BTEMP High thermal limits */
#define BTEMP_HIGH_TH_57_0 0x00
#define BTEMP_HIGH_TH_52 0x01
#define BTEMP_HIGH_TH_57_1 0x02
#define BTEMP_HIGH_TH_62 0x03
/* current is mA */
#define USB_0P1A 100
#define USB_0P2A 200
#define USB_0P3A 300
#define USB_0P4A 400
#define USB_0P5A 500
#define LOW_BAT_3P1V 0x20
#define LOW_BAT_2P3V 0x00
#define LOW_BAT_RESET 0x01
#define LOW_BAT_ENABLE 0x01
/* Backup battery constants */
#define BUP_ICH_SEL_50UA 0x00
#define BUP_ICH_SEL_150UA 0x04
#define BUP_ICH_SEL_300UA 0x08
#define BUP_ICH_SEL_700UA 0x0C
#define BUP_VCH_SEL_2P5V 0x00
#define BUP_VCH_SEL_2P6V 0x01
#define BUP_VCH_SEL_2P8V 0x02
#define BUP_VCH_SEL_3P1V 0x03
/* Battery OVV constants */
#define BATT_OVV_ENA 0x02
#define BATT_OVV_TH_3P7 0x00
#define BATT_OVV_TH_4P75 0x01
/* A value to indicate over voltage */
#define BATT_OVV_VALUE 4750
/* VBUS OVV constants */
#define VBUS_OVV_SELECT_MASK 0x78
#define VBUS_OVV_SELECT_5P6V 0x00
#define VBUS_OVV_SELECT_5P7V 0x08
#define VBUS_OVV_SELECT_5P8V 0x10
#define VBUS_OVV_SELECT_5P9V 0x18
#define VBUS_OVV_SELECT_6P0V 0x20
#define VBUS_OVV_SELECT_6P1V 0x28
#define VBUS_OVV_SELECT_6P2V 0x30
#define VBUS_OVV_SELECT_6P3V 0x38
#define VBUS_AUTO_IN_CURR_LIM_ENA 0x04
/* Fuel Gauge constants */
#define RESET_ACCU 0x02
#define READ_REQ 0x01
#define CC_DEEP_SLEEP_ENA 0x02
#define CC_PWR_UP_ENA 0x01
#define CC_SAMPLES_40 0x28
#define RD_NCONV_ACCU_REQ 0x01
#define CC_CALIB 0x08
#define CC_INTAVGOFFSET_ENA 0x10
#define CC_MUXOFFSET 0x80
#define CC_INT_CAL_N_AVG_MASK 0x60
#define CC_INT_CAL_SAMPLES_16 0x40
#define CC_INT_CAL_SAMPLES_8 0x20
#define CC_INT_CAL_SAMPLES_4 0x00
/* RTC constants */
#define RTC_BUP_CH_ENA 0x10
/* BatCtrl Current Source Constants */
#define BAT_CTRL_7U_ENA 0x01
#define BAT_CTRL_20U_ENA 0x02
#define BAT_CTRL_CMP_ENA 0x04
#define FORCE_BAT_CTRL_CMP_HIGH 0x08
#define BAT_CTRL_PULL_UP_ENA 0x10
/* Battery type */
#define BATTERY_UNKNOWN 00
/**
* struct res_to_temp - defines one point in a temp to res curve. To
* be used in battery packs that combines the identification resistor with a
* NTC resistor.
* @temp: battery pack temperature in Celcius
* @resist: NTC resistor net total resistance
*/
struct res_to_temp {
int temp;
int resist;
};
/**
* struct batres_vs_temp - defines one point in a temp vs battery internal
* resistance curve.
* @temp: battery pack temperature in Celcius
* @resist: battery internal reistance in mOhm
*/
struct batres_vs_temp {
int temp;
int resist;
};
/* Forward declaration */
struct ab8500_fg;
/**
* struct ab8500_fg_parameters - Fuel gauge algorithm parameters, in seconds
* if not specified
* @recovery_sleep_timer: Time between measurements while recovering
* @recovery_total_time: Total recovery time
* @init_timer: Measurement interval during startup
* @init_discard_time: Time we discard voltage measurement at startup
* @init_total_time: Total init time during startup
* @high_curr_time: Time current has to be high to go to recovery
* @accu_charging: FG accumulation time while charging
* @accu_high_curr: FG accumulation time in high current mode
* @high_curr_threshold: High current threshold, in mA
* @lowbat_threshold: Low battery threshold, in mV
* @battok_falling_th_sel0 Threshold in mV for battOk signal sel0
* Resolution in 50 mV step.
* @battok_raising_th_sel1 Threshold in mV for battOk signal sel1
* Resolution in 50 mV step.
* @user_cap_limit Capacity reported from user must be within this
* limit to be considered as sane, in percentage
* points.
* @maint_thres This is the threshold where we stop reporting
* battery full while in maintenance, in per cent
*/
struct ab8500_fg_parameters {
int recovery_sleep_timer;
int recovery_total_time;
int init_timer;
int init_discard_time;
int init_total_time;
int high_curr_time;
int accu_charging;
int accu_high_curr;
int high_curr_threshold;
int lowbat_threshold;
int battok_falling_th_sel0;
int battok_raising_th_sel1;
int user_cap_limit;
int maint_thres;
};
/**
* struct ab8500_charger_maximization - struct used by the board config.
* @use_maxi: Enable maximization for this battery type
* @maxi_chg_curr: Maximum charger current allowed
* @maxi_wait_cycles: cycles to wait before setting charger current
* @charger_curr_step delta between two charger current settings (mA)
*/
struct ab8500_maxim_parameters {
bool ena_maxi;
int chg_curr;
int wait_cycles;
int charger_curr_step;
};
/**
* struct ab8500_bm_capacity_levels - ab8500 capacity level data
* @critical: critical capacity level in percent
* @low: low capacity level in percent
* @normal: normal capacity level in percent
* @high: high capacity level in percent
* @full: full capacity level in percent
*/
struct ab8500_bm_capacity_levels {
int critical;
int low;
int normal;
int high;
int full;
};
/**
* struct ab8500_bm_charger_parameters - Charger specific parameters
* @usb_volt_max: maximum allowed USB charger voltage in mV
* @usb_curr_max: maximum allowed USB charger current in mA
* @ac_volt_max: maximum allowed AC charger voltage in mV
* @ac_curr_max: maximum allowed AC charger current in mA
*/
struct ab8500_bm_charger_parameters {
int usb_volt_max;
int usb_curr_max;
int ac_volt_max;
int ac_curr_max;
};
/**
* struct ab8500_bm_data - ab8500 battery management data
* @temp_under under this temp, charging is stopped
* @temp_low between this temp and temp_under charging is reduced
* @temp_high between this temp and temp_over charging is reduced
* @temp_over over this temp, charging is stopped
* @temp_interval_chg temperature measurement interval in s when charging
* @temp_interval_nochg temperature measurement interval in s when not charging
* @main_safety_tmr_h safety timer for main charger
* @usb_safety_tmr_h safety timer for usb charger
* @bkup_bat_v voltage which we charge the backup battery with
* @bkup_bat_i current which we charge the backup battery with
* @no_maintenance indicates that maintenance charging is disabled
* @adc_therm placement of thermistor, batctrl or battemp adc
* @chg_unknown_bat flag to enable charging of unknown batteries
* @enable_overshoot flag to enable VBAT overshoot control
* @fg_res resistance of FG resistor in 0.1mOhm
* @n_btypes number of elements in array bat_type
* @batt_id index of the identified battery in array bat_type
* @interval_charging charge alg cycle period time when charging (sec)
* @interval_not_charging charge alg cycle period time when not charging (sec)
* @temp_hysteresis temperature hysteresis
* @gnd_lift_resistance Battery ground to phone ground resistance (mOhm)
* @maxi: maximization parameters
* @cap_levels capacity in percent for the different capacity levels
* @bat_type table of supported battery types
* @chg_params charger parameters
* @fg_params fuel gauge parameters
*/
struct ab8500_bm_data {
int temp_under;
int temp_low;
int temp_high;
int temp_over;
int temp_interval_chg;
int temp_interval_nochg;
int main_safety_tmr_h;
int usb_safety_tmr_h;
int bkup_bat_v;
int bkup_bat_i;
bool no_maintenance;
bool chg_unknown_bat;
bool enable_overshoot;
enum abx500_adc_therm adc_therm;
int fg_res;
int n_btypes;
int batt_id;
int interval_charging;
int interval_not_charging;
int temp_hysteresis;
int gnd_lift_resistance;
const struct ab8500_maxim_parameters *maxi;
const struct ab8500_bm_capacity_levels *cap_levels;
const struct ab8500_bm_charger_parameters *chg_params;
const struct ab8500_fg_parameters *fg_params;
};
struct ab8500_charger_platform_data {
char **supplied_to;
size_t num_supplicants;
bool autopower_cfg;
};
struct ab8500_btemp_platform_data {
char **supplied_to;
size_t num_supplicants;
};
struct ab8500_fg_platform_data {
char **supplied_to;
size_t num_supplicants;
};
struct ab8500_chargalg_platform_data {
char **supplied_to;
size_t num_supplicants;
};
struct ab8500_btemp;
struct ab8500_gpadc;
struct ab8500_fg;
#ifdef CONFIG_AB8500_BM
void ab8500_fg_reinit(void);
void ab8500_charger_usb_state_changed(u8 bm_usb_state, u16 mA);
struct ab8500_btemp *ab8500_btemp_get(void);
int ab8500_btemp_get_batctrl_temp(struct ab8500_btemp *btemp);
struct ab8500_fg *ab8500_fg_get(void);
int ab8500_fg_inst_curr_blocking(struct ab8500_fg *dev);
int ab8500_fg_inst_curr_start(struct ab8500_fg *di);
int ab8500_fg_inst_curr_finalize(struct ab8500_fg *di, int *res);
int ab8500_fg_inst_curr_done(struct ab8500_fg *di);
#else
int ab8500_fg_inst_curr_done(struct ab8500_fg *di)
{
}
static void ab8500_fg_reinit(void)
{
}
static void ab8500_charger_usb_state_changed(u8 bm_usb_state, u16 mA)
{
}
static struct ab8500_btemp *ab8500_btemp_get(void)
{
return NULL;
}
static int ab8500_btemp_get_batctrl_temp(struct ab8500_btemp *btemp)
{
return 0;
}
struct ab8500_fg *ab8500_fg_get(void)
{
return NULL;
}
static int ab8500_fg_inst_curr_blocking(struct ab8500_fg *dev)
{
return -ENODEV;
}
static inline int ab8500_fg_inst_curr_start(struct ab8500_fg *di)
{
return -ENODEV;
}
static inline int ab8500_fg_inst_curr_finalize(struct ab8500_fg *di, int *res)
{
return -ENODEV;
}
#endif
#endif /* _AB8500_BM_H */

38
include/linux/mfd/abx500/ux500_chargalg.h Normal file
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@ -0,0 +1,38 @@
/*
* Copyright (C) ST-Ericsson SA 2012
* Author: Johan Gardsmark <johan.gardsmark@stericsson.com> for ST-Ericsson.
* License terms: GNU General Public License (GPL), version 2
*/
#ifndef _UX500_CHARGALG_H
#define _UX500_CHARGALG_H
#include <linux/power_supply.h>
#define psy_to_ux500_charger(x) container_of((x), \
struct ux500_charger, psy)
/* Forward declaration */
struct ux500_charger;
struct ux500_charger_ops {
int (*enable) (struct ux500_charger *, int, int, int);
int (*kick_wd) (struct ux500_charger *);
int (*update_curr) (struct ux500_charger *, int);
};
/**
* struct ux500_charger - power supply ux500 charger sub class
* @psy power supply base class
* @ops ux500 charger operations
* @max_out_volt maximum output charger voltage in mV
* @max_out_curr maximum output charger current in mA
*/
struct ux500_charger {
struct power_supply psy;
struct ux500_charger_ops ops;
int max_out_volt;
int max_out_curr;
};
#endif

93
include/linux/power/max17042_battery.h
View File

@ -27,6 +27,8 @@
#define MAX17042_BATTERY_FULL (100)
#define MAX17042_DEFAULT_SNS_RESISTOR (10000)
#define MAX17042_CHARACTERIZATION_DATA_SIZE 48
enum max17042_register {
MAX17042_STATUS = 0x00,
MAX17042_VALRT_Th = 0x01,
@ -40,11 +42,11 @@ enum max17042_register {
MAX17042_VCELL = 0x09,
MAX17042_Current = 0x0A,
MAX17042_AvgCurrent = 0x0B,
MAX17042_Qresidual = 0x0C,
MAX17042_SOC = 0x0D,
MAX17042_AvSOC = 0x0E,
MAX17042_RemCap = 0x0F,
MAX17402_FullCAP = 0x10,
MAX17042_FullCAP = 0x10,
MAX17042_TTE = 0x11,
MAX17042_V_empty = 0x12,
@ -62,14 +64,14 @@ enum max17042_register {
MAX17042_AvCap = 0x1F,
MAX17042_ManName = 0x20,
MAX17042_DevName = 0x21,
MAX17042_DevChem = 0x22,
MAX17042_FullCAPNom = 0x23,
MAX17042_TempNom = 0x24,
MAX17042_TempCold = 0x25,
MAX17042_TempLim = 0x25,
MAX17042_TempHot = 0x26,
MAX17042_AIN = 0x27,
MAX17042_LearnCFG = 0x28,
MAX17042_SHFTCFG = 0x29,
MAX17042_FilterCFG = 0x29,
MAX17042_RelaxCFG = 0x2A,
MAX17042_MiscCFG = 0x2B,
MAX17042_TGAIN = 0x2C,
@ -77,22 +79,41 @@ enum max17042_register {
MAX17042_CGAIN = 0x2E,
MAX17042_COFF = 0x2F,
MAX17042_Q_empty = 0x33,
MAX17042_MaskSOC = 0x32,
MAX17042_SOC_empty = 0x33,
MAX17042_T_empty = 0x34,
MAX17042_FullCAP0 = 0x35,
MAX17042_LAvg_empty = 0x36,
MAX17042_FCTC = 0x37,
MAX17042_RCOMP0 = 0x38,
MAX17042_TempCo = 0x39,
MAX17042_Rx = 0x3A,
MAX17042_T_empty0 = 0x3B,
MAX17042_EmptyTempCo = 0x3A,
MAX17042_K_empty0 = 0x3B,
MAX17042_TaskPeriod = 0x3C,
MAX17042_FSTAT = 0x3D,
MAX17042_SHDNTIMER = 0x3F,
MAX17042_VFRemCap = 0x4A,
MAX17042_dQacc = 0x45,
MAX17042_dPacc = 0x46,
MAX17042_VFSOC0 = 0x48,
MAX17042_QH = 0x4D,
MAX17042_QL = 0x4E,
MAX17042_VFSOC0Enable = 0x60,
MAX17042_MLOCKReg1 = 0x62,
MAX17042_MLOCKReg2 = 0x63,
MAX17042_MODELChrTbl = 0x80,
MAX17042_OCV = 0xEE,
MAX17042_OCVInternal = 0xFB,
MAX17042_VFSOC = 0xFF,
};
/*
@ -105,10 +126,64 @@ struct max17042_reg_data {
u16 data;
};
struct max17042_config_data {
/* External current sense resistor value in milli-ohms */
u32 cur_sense_val;
/* A/D measurement */
u16 tgain; /* 0x2C */
u16 toff; /* 0x2D */
u16 cgain; /* 0x2E */
u16 coff; /* 0x2F */
/* Alert / Status */
u16 valrt_thresh; /* 0x01 */
u16 talrt_thresh; /* 0x02 */
u16 soc_alrt_thresh; /* 0x03 */
u16 config; /* 0x01D */
u16 shdntimer; /* 0x03F */
/* App data */
u16 design_cap; /* 0x18 */
u16 ichgt_term; /* 0x1E */
/* MG3 config */
u16 at_rate; /* 0x04 */
u16 learn_cfg; /* 0x28 */
u16 filter_cfg; /* 0x29 */
u16 relax_cfg; /* 0x2A */
u16 misc_cfg; /* 0x2B */
u16 masksoc; /* 0x32 */
/* MG3 save and restore */
u16 fullcap; /* 0x10 */
u16 fullcapnom; /* 0x23 */
u16 socempty; /* 0x33 */
u16 lavg_empty; /* 0x36 */
u16 dqacc; /* 0x45 */
u16 dpacc; /* 0x46 */
/* Cell technology from power_supply.h */
u16 cell_technology;
/* Cell Data */
u16 vempty; /* 0x12 */
u16 temp_nom; /* 0x24 */
u16 temp_lim; /* 0x25 */
u16 fctc; /* 0x37 */
u16 rcomp0; /* 0x38 */
u16 tcompc0; /* 0x39 */
u16 empty_tempco; /* 0x3A */
u16 kempty0; /* 0x3B */
u16 cell_char_tbl[MAX17042_CHARACTERIZATION_DATA_SIZE];
} __packed;
struct max17042_platform_data {
struct max17042_reg_data *init_data;
struct max17042_config_data *config_data;
int num_init_data; /* Number of enties in init_data array */
bool enable_current_sense;
bool enable_por_init; /* Use POR init from Maxim appnote */
/*
* R_sns in micro-ohms.

117
include/linux/power/smb347-charger.h Normal file
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@ -0,0 +1,117 @@
/*
* Summit Microelectronics SMB347 Battery Charger Driver
*
* Copyright (C) 2011, Intel Corporation
*
* Authors: Bruce E. Robertson <bruce.e.robertson@intel.com>
* Mika Westerberg <mika.westerberg@linux.intel.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.
*/
#ifndef SMB347_CHARGER_H
#define SMB347_CHARGER_H
#include <linux/types.h>
#include <linux/power_supply.h>
enum {
/* use the default compensation method */
SMB347_SOFT_TEMP_COMPENSATE_DEFAULT = -1,
SMB347_SOFT_TEMP_COMPENSATE_NONE,
SMB347_SOFT_TEMP_COMPENSATE_CURRENT,
SMB347_SOFT_TEMP_COMPENSATE_VOLTAGE,
};
/* Use default factory programmed value for hard/soft temperature limit */
#define SMB347_TEMP_USE_DEFAULT -273
/*
* Charging enable can be controlled by software (via i2c) by
* smb347-charger driver or by EN pin (active low/high).
*/
enum smb347_chg_enable {
SMB347_CHG_ENABLE_SW,
SMB347_CHG_ENABLE_PIN_ACTIVE_LOW,
SMB347_CHG_ENABLE_PIN_ACTIVE_HIGH,
};
/**
* struct smb347_charger_platform_data - platform data for SMB347 charger
* @battery_info: Information about the battery
* @max_charge_current: maximum current (in uA) the battery can be charged
* @max_charge_voltage: maximum voltage (in uV) the battery can be charged
* @pre_charge_current: current (in uA) to use in pre-charging phase
* @termination_current: current (in uA) used to determine when the
* charging cycle terminates
* @pre_to_fast_voltage: voltage (in uV) treshold used for transitioning to
* pre-charge to fast charge mode
* @mains_current_limit: maximum input current drawn from AC/DC input (in uA)
* @usb_hc_current_limit: maximum input high current (in uA) drawn from USB
* input
* @chip_temp_threshold: die temperature where device starts limiting charge
* current [%100 - %130] (in degree C)
* @soft_cold_temp_limit: soft cold temperature limit [%0 - %15] (in degree C),
* granularity is 5 deg C.
* @soft_hot_temp_limit: soft hot temperature limit [%40 - %55] (in degree C),
* granularity is 5 deg C.
* @hard_cold_temp_limit: hard cold temperature limit [%-5 - %10] (in degree C),
* granularity is 5 deg C.
* @hard_hot_temp_limit: hard hot temperature limit [%50 - %65] (in degree C),
* granularity is 5 deg C.
* @suspend_on_hard_temp_limit: suspend charging when hard limit is hit
* @soft_temp_limit_compensation: compensation method when soft temperature
* limit is hit
* @charge_current_compensation: current (in uA) for charging compensation
* current when temperature hits soft limits
* @use_mains: AC/DC input can be used
* @use_usb: USB input can be used
* @use_usb_otg: USB OTG output can be used (not implemented yet)
* @irq_gpio: GPIO number used for interrupts (%-1 if not used)
* @enable_control: how charging enable/disable is controlled
* (driver/pin controls)
*
* @use_main, @use_usb, and @use_usb_otg are means to enable/disable
* hardware support for these. This is useful when we want to have for
* example OTG charging controlled via OTG transceiver driver and not by
* the SMB347 hardware.
*
* Hard and soft temperature limit values are given as described in the
* device data sheet and assuming NTC beta value is %3750. Even if this is
* not the case, these values should be used. They can be mapped to the
* corresponding NTC beta values with the help of table %2 in the data
* sheet. So for example if NTC beta is %3375 and we want to program hard
* hot limit to be %53 deg C, @hard_hot_temp_limit should be set to %50.
*
* If zero value is given in any of the current and voltage values, the
* factory programmed default will be used. For soft/hard temperature
* values, pass in %SMB347_TEMP_USE_DEFAULT instead.
*/
struct smb347_charger_platform_data {
struct power_supply_info battery_info;
unsigned int max_charge_current;
unsigned int max_charge_voltage;
unsigned int pre_charge_current;
unsigned int termination_current;
unsigned int pre_to_fast_voltage;
unsigned int mains_current_limit;
unsigned int usb_hc_current_limit;
unsigned int chip_temp_threshold;
int soft_cold_temp_limit;
int soft_hot_temp_limit;
int hard_cold_temp_limit;
int hard_hot_temp_limit;
bool suspend_on_hard_temp_limit;
unsigned int soft_temp_limit_compensation;
unsigned int charge_current_compensation;
bool use_mains;
bool use_usb;
bool use_usb_otg;
int irq_gpio;
enum smb347_chg_enable enable_control;
};
#endif /* SMB347_CHARGER_H */