kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

power supply and reset changes for the v5.4 series

Browse source 
Core:
  * Ensure HWMON devices are registered with valid names
  * Fix device wakeup code
 
 Drivers:
  * bq25890_charger: Add BQ25895 support
  * axp288_fuel_gauge: Add Minix Neo Z83-4 to blacklist
  * sc27xx: improve battery calibration
  * misc. small fixes all over drivers
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE72YNB0Y/i3JqeVQT2O7X88g7+poFAl2HhCsACgkQ2O7X88g7
 +ppoKw//cPn+LOj1AJYGphqzMz207rJlgn7QFF0a0LhfQHdf6gPtrqVuZ1Mp9+RB
 +3aJqp6ORLpKEw7/x8IOlFVACwPRm+ikMqjchb3kYqMZCBuqmr0xYukzxvRWNf/K
 LIRkRWMETmaXj1KCIYdFyIt7Ff0HqlXZaFPrgCFK9DO6+wAgoE3LmgZXpya0h5ev
 PUYz8MnDjVd5+nkdBDpuBFvpsK66Lg0pZs5ScH1JUKrG6xoXEIU+7VeYJ7EEsfGE
 C54g0ZFYLGf+4zxeAyhg9sPb7/tzlM+SChZdUGk6bJ9txgWoalsfNxytb8huSfeK
 9dhTVMoZ9seBEq5mfJRUTnmQMRYpLJLWxJjz0MrQotOlSnIN73tlEpuIrUzWl0p7
 WIWkYu/hz+OOX0mBBngHXvnTWRQrjO+QIu9P23obFzBedtOL7LVqPtCd5FrJ48y3
 xQZAZUyyEUqhq2+HZaTn9HvTbFgnbHmWd/RQDarZcojC+836MlwWC7k3XqkfIa4i
 h3P/t6qyc/Kf7o5YT+/TkTpUR5yh2gSwfPGwTQH4hhOxPIN4prC7sF/oySm9tEgw
 qLZJ8XP0KuQpBEN8qdhd00bCwEEbDc4+qRJWyjjG0WN2my8BVlzKtrcAVCWspD15
 07TV84+OdIzvTXzgWUT1H47WG6RQfpX2rUSCtTwteh710beoctU=
 =cIXy
 -----END PGP SIGNATURE-----

Merge tag 'for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 "Core:
   - Ensure HWMON devices are registered with valid names
   - Fix device wakeup code

  Drivers:
   - bq25890_charger: Add BQ25895 support
   - axp288_fuel_gauge: Add Minix Neo Z83-4 to blacklist
   - sc27xx: improve battery calibration
   - misc small fixes all over drivers"

* tag 'for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (24 commits)
  power: supply: cpcap-charger: Enable vbus boost voltage
  power: supply: sc27xx: Add POWER_SUPPLY_PROP_CALIBRATE attribute
  power: supply: sc27xx: Optimize the battery capacity calibration
  power: supply: sc27xx: Make sure the alarm capacity is larger than 0
  power: supply: sc27xx: Fix the the accuracy issue of coulomb calculation
  power: supply: sc27xx: Fix conditon to enable the FGU interrupt
  power: supply: sc27xx: Add POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN attribute
  power: supply: max77650: add MODULE_ALIAS()
  power: supply: isp1704: remove redundant assignment to variable ret
  power: supply: bq25890_charger: Add the BQ25895 part
  power: supply: sc27xx: Replace devm_add_action() followed by failure action with devm_add_action_or_reset()
  power: supply: sc27xx: Introduce local variable 'struct device *dev'
  power: reset: reboot-mode: Fix author email format
  power: supply: ab8500: remove set but not used variables 'vbup33_vrtcn' and 'bup_vch_range'
  power: supply: max17042_battery: Fix a typo in function names
  power: reset: gpio-restart: Fix typo when gpio reset is not found
  power: supply: Init device wakeup after device_add()
  power: supply: ab8500_charger: Mark expected switch fall-through
  power: supply: sbs-battery: only return health when battery present
  MAINTAINERS: N900: Remove isp1704_charger.h record
  ...
This commit is contained in:
Linus Torvalds 2019-09-22 12:04:59 -07:00
commit 619e17cf75
15 changed files with 247 additions and 130 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
MAINTAINERS
View file

@ -11511,7 +11511,6 @@ NOKIA N900 POWER SUPPLY DRIVERS
R: Pali Rohár <pali.rohar@gmail.com>
F: include/linux/power/bq2415x_charger.h
F: include/linux/power/bq27xxx_battery.h
F: include/linux/power/isp1704_charger.h
F: drivers/power/supply/bq2415x_charger.c
F: drivers/power/supply/bq27xxx_battery.c
F: drivers/power/supply/bq27xxx_battery_i2c.c

8
drivers/phy/motorola/phy-cpcap-usb.c
View file

@ -231,8 +231,9 @@ static void cpcap_usb_detect(struct work_struct *work)
goto out_err;
error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3,
CPCAP_BIT_VBUSSTBY_EN,
CPCAP_BIT_VBUSSTBY_EN);
CPCAP_BIT_VBUSSTBY_EN |
CPCAP_BIT_VBUSEN_SPI,
CPCAP_BIT_VBUSEN_SPI);
if (error)
goto out_err;
@ -240,7 +241,8 @@ static void cpcap_usb_detect(struct work_struct *work)
}
error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3,
CPCAP_BIT_VBUSSTBY_EN, 0);
CPCAP_BIT_VBUSSTBY_EN |
CPCAP_BIT_VBUSEN_SPI, 0);
if (error)
goto out_err;

2
drivers/power/reset/gpio-restart.c
View file

@ -65,7 +65,7 @@ static int gpio_restart_probe(struct platform_device *pdev)
gpio_restart->reset_gpio = devm_gpiod_get(&pdev->dev, NULL,
open_source ? GPIOD_IN : GPIOD_OUT_LOW);
if (IS_ERR(gpio_restart->reset_gpio)) {
dev_err(&pdev->dev, "Could net get reset GPIO\n");
dev_err(&pdev->dev, "Could not get reset GPIO\n");
return PTR_ERR(gpio_restart->reset_gpio);
}

2
drivers/power/reset/reboot-mode.c
View file

@ -190,6 +190,6 @@ void devm_reboot_mode_unregister(struct device *dev,
}
EXPORT_SYMBOL_GPL(devm_reboot_mode_unregister);
MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com");
MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com>");
MODULE_DESCRIPTION("System reboot mode core library");
MODULE_LICENSE("GPL v2");

9
drivers/power/supply/ab8500_charger.c
View file

@ -742,7 +742,7 @@ static int ab8500_charger_max_usb_curr(struct ab8500_charger *di,
USB_CH_IP_CUR_LVL_1P5;
break;
}
/* Else, fall through */
/* else, fall through */
case USB_STAT_HM_IDGND:
dev_err(di->dev, "USB Type - Charging not allowed\n");
di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P05;
@ -3011,7 +3011,6 @@ static int ab8500_charger_usb_get_property(struct power_supply *psy,
static int ab8500_charger_init_hw_registers(struct ab8500_charger *di)
{
int ret = 0;
u8 bup_vch_range = 0, vbup33_vrtcn = 0;
/* Setup maximum charger current and voltage for ABB cut2.0 */
if (!is_ab8500_1p1_or_earlier(di->parent)) {
@ -3112,12 +3111,6 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di)
goto out;
}
/* Backup battery voltage and current */
if (di->bm->bkup_bat_v > BUP_VCH_SEL_3P1V)
bup_vch_range = BUP_VCH_RANGE;
if (di->bm->bkup_bat_v == BUP_VCH_SEL_3P3V)
vbup33_vrtcn = VBUP33_VRTCN;
ret = abx500_set_register_interruptible(di->dev,
AB8500_RTC,
AB8500_RTC_BACKUP_CHG_REG,

14
drivers/power/supply/axp288_fuel_gauge.c
View file

@ -674,6 +674,7 @@ intr_failed:
/*
* Some devices have no battery (HDMI sticks) and the axp288 battery's
* detection reports one despite it not being there.
* Please keep this listed sorted alphabetically.
*/
static const struct dmi_system_id axp288_fuel_gauge_blacklist[] = {
{
@ -696,6 +697,12 @@ static const struct dmi_system_id axp288_fuel_gauge_blacklist[] = {
DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
},
},
{
/* ECS EF20EA */
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"),
},
},
{
/* Intel Cherry Trail Compute Stick, Windows version */
.matches = {
@ -720,10 +727,11 @@ static const struct dmi_system_id axp288_fuel_gauge_blacklist[] = {
},
},
{
/* ECS EF20EA */
/* Minix Neo Z83-4 mini PC */
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"),
},
DMI_MATCH(DMI_SYS_VENDOR, "MINIX"),
DMI_MATCH(DMI_PRODUCT_NAME, "Z83-4"),
}
},
{}
};

12
drivers/power/supply/bq25890_charger.c
View file

@ -22,6 +22,7 @@
#define BQ25890_IRQ_PIN "bq25890_irq"
#define BQ25890_ID 3
#define BQ25895_ID 7
#define BQ25896_ID 0
enum bq25890_fields {
@ -171,7 +172,7 @@ static const struct reg_field bq25890_reg_fields[] = {
[F_WD] = REG_FIELD(0x07, 4, 5),
[F_TMR_EN] = REG_FIELD(0x07, 3, 3),
[F_CHG_TMR] = REG_FIELD(0x07, 1, 2),
[F_JEITA_ISET] = REG_FIELD(0x07, 0, 0),
[F_JEITA_ISET] = REG_FIELD(0x07, 0, 0), // reserved on BQ25895
/* REG08 */
[F_BATCMP] = REG_FIELD(0x08, 5, 7),
[F_VCLAMP] = REG_FIELD(0x08, 2, 4),
@ -180,7 +181,7 @@ static const struct reg_field bq25890_reg_fields[] = {
[F_FORCE_ICO] = REG_FIELD(0x09, 7, 7),
[F_TMR2X_EN] = REG_FIELD(0x09, 6, 6),
[F_BATFET_DIS] = REG_FIELD(0x09, 5, 5),
[F_JEITA_VSET] = REG_FIELD(0x09, 4, 4),
[F_JEITA_VSET] = REG_FIELD(0x09, 4, 4), // reserved on BQ25895
[F_BATFET_DLY] = REG_FIELD(0x09, 3, 3),
[F_BATFET_RST_EN] = REG_FIELD(0x09, 2, 2),
[F_PUMPX_UP] = REG_FIELD(0x09, 1, 1),
@ -188,7 +189,7 @@ static const struct reg_field bq25890_reg_fields[] = {
/* REG0A */
[F_BOOSTV] = REG_FIELD(0x0A, 4, 7),
/* PFM_OTG_DIS 3 on BQ25896 */
[F_BOOSTI] = REG_FIELD(0x0A, 0, 2),
[F_BOOSTI] = REG_FIELD(0x0A, 0, 2), // reserved on BQ25895
/* REG0B */
[F_VBUS_STAT] = REG_FIELD(0x0B, 5, 7),
[F_CHG_STAT] = REG_FIELD(0x0B, 3, 4),
@ -392,6 +393,8 @@ static int bq25890_power_supply_get_property(struct power_supply *psy,
case POWER_SUPPLY_PROP_MODEL_NAME:
if (bq->chip_id == BQ25890_ID)
val->strval = "BQ25890";
else if (bq->chip_id == BQ25895_ID)
val->strval = "BQ25895";
else if (bq->chip_id == BQ25896_ID)
val->strval = "BQ25896";
else
@ -862,7 +865,8 @@ static int bq25890_probe(struct i2c_client *client,
return bq->chip_id;
}
if ((bq->chip_id != BQ25890_ID) && (bq->chip_id != BQ25896_ID)) {
if ((bq->chip_id != BQ25890_ID) && (bq->chip_id != BQ25895_ID)
&& (bq->chip_id != BQ25896_ID)) {
dev_err(dev, "Chip with ID=%d, not supported!\n", bq->chip_id);
return -ENODEV;
}

23
drivers/power/supply/cpcap-charger.c
View file

@ -108,6 +108,9 @@
#define CPCAP_REG_CRM_ICHRG_1A596 CPCAP_REG_CRM_ICHRG(0xe)
#define CPCAP_REG_CRM_ICHRG_NO_LIMIT CPCAP_REG_CRM_ICHRG(0xf)
/* CPCAP_REG_VUSBC register bits needed for VBUS */
#define CPCAP_BIT_VBUS_SWITCH BIT(0) /* VBUS boost to 5V */
enum {
CPCAP_CHARGER_IIO_BATTDET,
CPCAP_CHARGER_IIO_VOLTAGE,
@ -130,7 +133,8 @@ struct cpcap_charger_ddata {
struct power_supply *usb;
struct phy_companion comparator; /* For USB VBUS */
bool vbus_enabled;
unsigned int vbus_enabled:1;
unsigned int feeding_vbus:1;
atomic_t active;
int status;
@ -325,7 +329,6 @@ static bool cpcap_charger_vbus_valid(struct cpcap_charger_ddata *ddata)
}
/* VBUS control functions for the USB PHY companion */
static void cpcap_charger_vbus_work(struct work_struct *work)
{
struct cpcap_charger_ddata *ddata;
@ -343,6 +346,7 @@ static void cpcap_charger_vbus_work(struct work_struct *work)
return;
}
ddata->feeding_vbus = true;
cpcap_charger_set_cable_path(ddata, false);
cpcap_charger_set_inductive_path(ddata, false);
@ -350,12 +354,23 @@ static void cpcap_charger_vbus_work(struct work_struct *work)
if (error)
goto out_err;
error = regmap_update_bits(ddata->reg, CPCAP_REG_VUSBC,
CPCAP_BIT_VBUS_SWITCH,
CPCAP_BIT_VBUS_SWITCH);
if (error)
goto out_err;
error = regmap_update_bits(ddata->reg, CPCAP_REG_CRM,
CPCAP_REG_CRM_RVRSMODE,
CPCAP_REG_CRM_RVRSMODE);
if (error)
goto out_err;
} else {
error = regmap_update_bits(ddata->reg, CPCAP_REG_VUSBC,
CPCAP_BIT_VBUS_SWITCH, 0);
if (error)
goto out_err;
error = regmap_update_bits(ddata->reg, CPCAP_REG_CRM,
CPCAP_REG_CRM_RVRSMODE, 0);
if (error)
@ -363,6 +378,7 @@ static void cpcap_charger_vbus_work(struct work_struct *work)
cpcap_charger_set_cable_path(ddata, true);
cpcap_charger_set_inductive_path(ddata, true);
ddata->feeding_vbus = false;
}
return;
@ -431,7 +447,8 @@ static void cpcap_usb_detect(struct work_struct *work)
if (error)
return;
if (cpcap_charger_vbus_valid(ddata) && s.chrgcurr1) {
if (!ddata->feeding_vbus && cpcap_charger_vbus_valid(ddata) &&
s.chrgcurr1) {
int max_current;
if (cpcap_charger_battery_found(ddata))

2
drivers/power/supply/isp1704_charger.c
View file

@ -342,7 +342,7 @@ static inline int isp1704_test_ulpi(struct isp1704_charger *isp)
int vendor;
int product;
int i;
int ret = -ENODEV;
int ret;
/* Test ULPI interface */
ret = isp1704_write(isp, ULPI_SCRATCH, 0xaa);

8
drivers/power/supply/max17042_battery.c
View file

@ -511,7 +511,7 @@ static inline void max17042_override_por(struct regmap *map,
regmap_write(map, reg, value);
}
static inline void max10742_unlock_model(struct max17042_chip *chip)
static inline void max17042_unlock_model(struct max17042_chip *chip)
{
struct regmap *map = chip->regmap;
@ -519,7 +519,7 @@ static inline void max10742_unlock_model(struct max17042_chip *chip)
regmap_write(map, MAX17042_MLOCKReg2, MODEL_UNLOCK2);
}
static inline void max10742_lock_model(struct max17042_chip *chip)
static inline void max17042_lock_model(struct max17042_chip *chip)
{
struct regmap *map = chip->regmap;
@ -577,7 +577,7 @@ static int max17042_init_model(struct max17042_chip *chip)
if (!temp_data)
return -ENOMEM;
max10742_unlock_model(chip);
max17042_unlock_model(chip);
max17042_write_model_data(chip, MAX17042_MODELChrTbl,
table_size);
max17042_read_model_data(chip, MAX17042_MODELChrTbl, temp_data,
@ -589,7 +589,7 @@ static int max17042_init_model(struct max17042_chip *chip)
temp_data,
table_size);
max10742_lock_model(chip);
max17042_lock_model(chip);
kfree(temp_data);
return ret;

1
drivers/power/supply/max77650-charger.c
View file

@ -366,3 +366,4 @@ module_platform_driver(max77650_charger_driver);
MODULE_DESCRIPTION("MAXIM 77650/77651 charger driver");
MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:max77650-charger");

10
drivers/power/supply/power_supply_core.c
View file

@ -1051,14 +1051,14 @@ __power_supply_register(struct device *parent,
}
spin_lock_init(&psy->changed_lock);
rc = device_init_wakeup(dev, ws);
if (rc)
goto wakeup_init_failed;
rc = device_add(dev);
if (rc)
goto device_add_failed;
rc = device_init_wakeup(dev, ws);
if (rc)
goto wakeup_init_failed;
rc = psy_register_thermal(psy);
if (rc)
goto register_thermal_failed;
@ -1101,8 +1101,8 @@ register_cooler_failed:
psy_unregister_thermal(psy);
register_thermal_failed:
device_del(dev);
device_add_failed:
wakeup_init_failed:
device_add_failed:
check_supplies_failed:
dev_set_name_failed:
put_device(dev);

15
drivers/power/supply/power_supply_hwmon.c
View file

@ -284,6 +284,7 @@ int power_supply_add_hwmon_sysfs(struct power_supply *psy)
struct device *dev = &psy->dev;
struct device *hwmon;
int ret, i;
const char *name;
if (!devres_open_group(dev, power_supply_add_hwmon_sysfs,
GFP_KERNEL))
@ -334,7 +335,19 @@ int power_supply_add_hwmon_sysfs(struct power_supply *psy)
}
}
hwmon = devm_hwmon_device_register_with_info(dev, psy->desc->name,
name = psy->desc->name;
if (strchr(name, '-')) {
char *new_name;
new_name = devm_kstrdup(dev, name, GFP_KERNEL);
if (!new_name) {
ret = -ENOMEM;
goto error;
}
strreplace(new_name, '-', '_');
name = new_name;
}
hwmon = devm_hwmon_device_register_with_info(dev, name,
psyhw,
&power_supply_hwmon_chip_info,
NULL);

27
drivers/power/supply/sbs-battery.c
View file

@ -314,17 +314,22 @@ static int sbs_get_battery_presence_and_health(
{
int ret;
if (psp == POWER_SUPPLY_PROP_PRESENT) {
/* Dummy command; if it succeeds, battery is present. */
ret = sbs_read_word_data(client, sbs_data[REG_STATUS].addr);
if (ret < 0)
val->intval = 0; /* battery disconnected */
else
val->intval = 1; /* battery present */
} else { /* POWER_SUPPLY_PROP_HEALTH */
/* Dummy command; if it succeeds, battery is present. */
ret = sbs_read_word_data(client, sbs_data[REG_STATUS].addr);
if (ret < 0) { /* battery not present*/
if (psp == POWER_SUPPLY_PROP_PRESENT) {
val->intval = 0;
return 0;
}
return ret;
}
if (psp == POWER_SUPPLY_PROP_PRESENT)
val->intval = 1; /* battery present */
else /* POWER_SUPPLY_PROP_HEALTH */
/* SBS spec doesn't have a general health command. */
val->intval = POWER_SUPPLY_HEALTH_UNKNOWN;
}
return 0;
}
@ -620,12 +625,14 @@ static int sbs_get_property(struct power_supply *psy,
switch (psp) {
case POWER_SUPPLY_PROP_PRESENT:
case POWER_SUPPLY_PROP_HEALTH:
if (client->flags & SBS_FLAGS_TI_BQ20Z75)
if (chip->flags & SBS_FLAGS_TI_BQ20Z75)
ret = sbs_get_ti_battery_presence_and_health(client,
psp, val);
else
ret = sbs_get_battery_presence_and_health(client, psp,
val);
/* this can only be true if no gpio is used */
if (psp == POWER_SUPPLY_PROP_PRESENT)
return 0;
break;

243
drivers/power/supply/sc27xx_fuel_gauge.c
View file

@ -109,6 +109,9 @@ struct sc27xx_fgu_data {
};
static int sc27xx_fgu_cap_to_clbcnt(struct sc27xx_fgu_data *data, int capacity);
static void sc27xx_fgu_capacity_calibration(struct sc27xx_fgu_data *data,
int cap, bool int_mode);
static void sc27xx_fgu_adjust_cap(struct sc27xx_fgu_data *data, int cap);
static const char * const sc27xx_charger_supply_name[] = {
"sc2731_charger",
@ -326,8 +329,6 @@ static int sc27xx_fgu_set_clbcnt(struct sc27xx_fgu_data *data, int clbcnt)
{
int ret;
clbcnt *= SC27XX_FGU_SAMPLE_HZ;
ret = regmap_update_bits(data->regmap,
data->base + SC27XX_FGU_CLBCNT_SETL,
SC27XX_FGU_CLBCNT_MASK, clbcnt);
@ -362,7 +363,6 @@ static int sc27xx_fgu_get_clbcnt(struct sc27xx_fgu_data *data, int *clb_cnt)
*clb_cnt = ccl & SC27XX_FGU_CLBCNT_MASK;
*clb_cnt |= (cch & SC27XX_FGU_CLBCNT_MASK) << SC27XX_FGU_CLBCNT_SHIFT;
*clb_cnt /= SC27XX_FGU_SAMPLE_HZ;
return 0;
}
@ -380,10 +380,10 @@ static int sc27xx_fgu_get_capacity(struct sc27xx_fgu_data *data, int *cap)
/*
* Convert coulomb counter to delta capacity (mAh), and set multiplier
* as 100 to improve the precision.
* as 10 to improve the precision.
*/
temp = DIV_ROUND_CLOSEST(delta_clbcnt, 360);
temp = sc27xx_fgu_adc_to_current(data, temp);
temp = DIV_ROUND_CLOSEST(delta_clbcnt * 10, 36 * SC27XX_FGU_SAMPLE_HZ);
temp = sc27xx_fgu_adc_to_current(data, temp / 1000);
/*
* Convert to capacity percent of the battery total capacity,
@ -392,6 +392,9 @@ static int sc27xx_fgu_get_capacity(struct sc27xx_fgu_data *data, int *cap)
delta_cap = DIV_ROUND_CLOSEST(temp * 100, data->total_cap);
*cap = delta_cap + data->init_cap;
/* Calibrate the battery capacity in a normal range. */
sc27xx_fgu_capacity_calibration(data, *cap, false);
return 0;
}
@ -587,6 +590,10 @@ static int sc27xx_fgu_get_property(struct power_supply *psy,
val->intval = value * 1000;
break;
case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
val->intval = data->total_cap * 1000;
break;
default:
ret = -EINVAL;
break;
@ -604,18 +611,26 @@ static int sc27xx_fgu_set_property(struct power_supply *psy,
struct sc27xx_fgu_data *data = power_supply_get_drvdata(psy);
int ret;
if (psp != POWER_SUPPLY_PROP_CAPACITY)
return -EINVAL;
mutex_lock(&data->lock);
ret = sc27xx_fgu_save_last_cap(data, val->intval);
switch (psp) {
case POWER_SUPPLY_PROP_CAPACITY:
ret = sc27xx_fgu_save_last_cap(data, val->intval);
if (ret < 0)
dev_err(data->dev, "failed to save battery capacity\n");
break;
case POWER_SUPPLY_PROP_CALIBRATE:
sc27xx_fgu_adjust_cap(data, val->intval);
ret = 0;
break;
default:
ret = -EINVAL;
}
mutex_unlock(&data->lock);
if (ret < 0)
dev_err(data->dev, "failed to save battery capacity\n");
return ret;
}
@ -629,7 +644,8 @@ static void sc27xx_fgu_external_power_changed(struct power_supply *psy)
static int sc27xx_fgu_property_is_writeable(struct power_supply *psy,
enum power_supply_property psp)
{
return psp == POWER_SUPPLY_PROP_CAPACITY;
return psp == POWER_SUPPLY_PROP_CAPACITY ||
psp == POWER_SUPPLY_PROP_CALIBRATE;
}
static enum power_supply_property sc27xx_fgu_props[] = {
@ -644,6 +660,8 @@ static enum power_supply_property sc27xx_fgu_props[] = {
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CURRENT_AVG,
POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
POWER_SUPPLY_PROP_CALIBRATE,
};
static const struct power_supply_desc sc27xx_fgu_desc = {
@ -659,14 +677,108 @@ static const struct power_supply_desc sc27xx_fgu_desc = {
static void sc27xx_fgu_adjust_cap(struct sc27xx_fgu_data *data, int cap)
{
int ret;
data->init_cap = cap;
data->init_clbcnt = sc27xx_fgu_cap_to_clbcnt(data, data->init_cap);
ret = sc27xx_fgu_get_clbcnt(data, &data->init_clbcnt);
if (ret)
dev_err(data->dev, "failed to get init coulomb counter\n");
}
static void sc27xx_fgu_capacity_calibration(struct sc27xx_fgu_data *data,
int cap, bool int_mode)
{
int ret, ocv, chg_sts, adc;
ret = sc27xx_fgu_get_vbat_ocv(data, &ocv);
if (ret) {
dev_err(data->dev, "get battery ocv error.\n");
return;
}
ret = sc27xx_fgu_get_status(data, &chg_sts);
if (ret) {
dev_err(data->dev, "get charger status error.\n");
return;
}
/*
* If we are in charging mode, then we do not need to calibrate the
* lower capacity.
*/
if (chg_sts == POWER_SUPPLY_STATUS_CHARGING)
return;
if ((ocv > data->cap_table[0].ocv && cap < 100) || cap > 100) {
/*
* If current OCV value is larger than the max OCV value in
* OCV table, or the current capacity is larger than 100,
* we should force the inititial capacity to 100.
*/
sc27xx_fgu_adjust_cap(data, 100);
} else if (ocv <= data->cap_table[data->table_len - 1].ocv) {
/*
* If current OCV value is leass than the minimum OCV value in
* OCV table, we should force the inititial capacity to 0.
*/
sc27xx_fgu_adjust_cap(data, 0);
} else if ((ocv > data->cap_table[data->table_len - 1].ocv && cap <= 0) ||
(ocv > data->min_volt && cap <= data->alarm_cap)) {
/*
* If current OCV value is not matchable with current capacity,
* we should re-calculate current capacity by looking up the
* OCV table.
*/
int cur_cap = power_supply_ocv2cap_simple(data->cap_table,
data->table_len, ocv);
sc27xx_fgu_adjust_cap(data, cur_cap);
} else if (ocv <= data->min_volt) {
/*
* If current OCV value is less than the low alarm voltage, but
* current capacity is larger than the alarm capacity, we should
* adjust the inititial capacity to alarm capacity.
*/
if (cap > data->alarm_cap) {
sc27xx_fgu_adjust_cap(data, data->alarm_cap);
} else {
int cur_cap;
/*
* If current capacity is equal with 0 or less than 0
* (some error occurs), we should adjust inititial
* capacity to the capacity corresponding to current OCV
* value.
*/
cur_cap = power_supply_ocv2cap_simple(data->cap_table,
data->table_len,
ocv);
sc27xx_fgu_adjust_cap(data, cur_cap);
}
if (!int_mode)
return;
/*
* After adjusting the battery capacity, we should set the
* lowest alarm voltage instead.
*/
data->min_volt = data->cap_table[data->table_len - 1].ocv;
data->alarm_cap = power_supply_ocv2cap_simple(data->cap_table,
data->table_len,
data->min_volt);
adc = sc27xx_fgu_voltage_to_adc(data, data->min_volt / 1000);
regmap_update_bits(data->regmap,
data->base + SC27XX_FGU_LOW_OVERLOAD,
SC27XX_FGU_LOW_OVERLOAD_MASK, adc);
}
}
static irqreturn_t sc27xx_fgu_interrupt(int irq, void *dev_id)
{
struct sc27xx_fgu_data *data = dev_id;
int ret, cap, ocv, adc;
int ret, cap;
u32 status;
mutex_lock(&data->lock);
@ -692,49 +804,7 @@ static irqreturn_t sc27xx_fgu_interrupt(int irq, void *dev_id)
if (ret)
goto out;
ret = sc27xx_fgu_get_vbat_ocv(data, &ocv);
if (ret)
goto out;
/*
* If current OCV value is less than the minimum OCV value in OCV table,
* which means now battery capacity is 0%, and we should adjust the
* inititial capacity to 0.
*/
if (ocv <= data->cap_table[data->table_len - 1].ocv) {
sc27xx_fgu_adjust_cap(data, 0);
} else if (ocv <= data->min_volt) {
/*
* If current OCV value is less than the low alarm voltage, but
* current capacity is larger than the alarm capacity, we should
* adjust the inititial capacity to alarm capacity.
*/
if (cap > data->alarm_cap) {
sc27xx_fgu_adjust_cap(data, data->alarm_cap);
} else if (cap <= 0) {
int cur_cap;
/*
* If current capacity is equal with 0 or less than 0
* (some error occurs), we should adjust inititial
* capacity to the capacity corresponding to current OCV
* value.
*/
cur_cap = power_supply_ocv2cap_simple(data->cap_table,
data->table_len,
ocv);
sc27xx_fgu_adjust_cap(data, cur_cap);
}
/*
* After adjusting the battery capacity, we should set the
* lowest alarm voltage instead.
*/
data->min_volt = data->cap_table[data->table_len - 1].ocv;
adc = sc27xx_fgu_voltage_to_adc(data, data->min_volt / 1000);
regmap_update_bits(data->regmap, data->base + SC27XX_FGU_LOW_OVERLOAD,
SC27XX_FGU_LOW_OVERLOAD_MASK, adc);
}
sc27xx_fgu_capacity_calibration(data, cap, true);
out:
mutex_unlock(&data->lock);
@ -785,7 +855,7 @@ static int sc27xx_fgu_cap_to_clbcnt(struct sc27xx_fgu_data *data, int capacity)
* Convert current capacity (mAh) to coulomb counter according to the
* formula: 1 mAh =3.6 coulomb.
*/
return DIV_ROUND_CLOSEST(cur_cap * 36 * data->cur_1000ma_adc, 10);
return DIV_ROUND_CLOSEST(cur_cap * 36 * data->cur_1000ma_adc * SC27XX_FGU_SAMPLE_HZ, 10);
}
static int sc27xx_fgu_calibration(struct sc27xx_fgu_data *data)
@ -856,6 +926,8 @@ static int sc27xx_fgu_hw_init(struct sc27xx_fgu_data *data)
data->alarm_cap = power_supply_ocv2cap_simple(data->cap_table,
data->table_len,
data->min_volt);
if (!data->alarm_cap)
data->alarm_cap += 1;
power_supply_put_battery_info(data->battery, &info);
@ -957,81 +1029,81 @@ disable_fgu:
static int sc27xx_fgu_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
struct power_supply_config fgu_cfg = { };
struct sc27xx_fgu_data *data;
int ret, irq;
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->regmap = dev_get_regmap(pdev->dev.parent, NULL);
data->regmap = dev_get_regmap(dev->parent, NULL);
if (!data->regmap) {
dev_err(&pdev->dev, "failed to get regmap\n");
dev_err(dev, "failed to get regmap\n");
return -ENODEV;
}
ret = device_property_read_u32(&pdev->dev, "reg", &data->base);
ret = device_property_read_u32(dev, "reg", &data->base);
if (ret) {
dev_err(&pdev->dev, "failed to get fgu address\n");
dev_err(dev, "failed to get fgu address\n");
return ret;
}
data->channel = devm_iio_channel_get(&pdev->dev, "bat-temp");
data->channel = devm_iio_channel_get(dev, "bat-temp");
if (IS_ERR(data->channel)) {
dev_err(&pdev->dev, "failed to get IIO channel\n");
dev_err(dev, "failed to get IIO channel\n");
return PTR_ERR(data->channel);
}
data->charge_chan = devm_iio_channel_get(&pdev->dev, "charge-vol");
data->charge_chan = devm_iio_channel_get(dev, "charge-vol");
if (IS_ERR(data->charge_chan)) {
dev_err(&pdev->dev, "failed to get charge IIO channel\n");
dev_err(dev, "failed to get charge IIO channel\n");
return PTR_ERR(data->charge_chan);
}
data->gpiod = devm_gpiod_get(&pdev->dev, "bat-detect", GPIOD_IN);
data->gpiod = devm_gpiod_get(dev, "bat-detect", GPIOD_IN);
if (IS_ERR(data->gpiod)) {
dev_err(&pdev->dev, "failed to get battery detection GPIO\n");
dev_err(dev, "failed to get battery detection GPIO\n");
return PTR_ERR(data->gpiod);
}
ret = gpiod_get_value_cansleep(data->gpiod);
if (ret < 0) {
dev_err(&pdev->dev, "failed to get gpio state\n");
dev_err(dev, "failed to get gpio state\n");
return ret;
}
data->bat_present = !!ret;
mutex_init(&data->lock);
data->dev = &pdev->dev;
data->dev = dev;
platform_set_drvdata(pdev, data);
fgu_cfg.drv_data = data;
fgu_cfg.of_node = np;
data->battery = devm_power_supply_register(&pdev->dev, &sc27xx_fgu_desc,
data->battery = devm_power_supply_register(dev, &sc27xx_fgu_desc,
&fgu_cfg);
if (IS_ERR(data->battery)) {
dev_err(&pdev->dev, "failed to register power supply\n");
dev_err(dev, "failed to register power supply\n");
return PTR_ERR(data->battery);
}
ret = sc27xx_fgu_hw_init(data);
if (ret) {
dev_err(&pdev->dev, "failed to initialize fgu hardware\n");
dev_err(dev, "failed to initialize fgu hardware\n");
return ret;
}
ret = devm_add_action(&pdev->dev, sc27xx_fgu_disable, data);
ret = devm_add_action_or_reset(dev, sc27xx_fgu_disable, data);
if (ret) {
sc27xx_fgu_disable(data);
dev_err(&pdev->dev, "failed to add fgu disable action\n");
dev_err(dev, "failed to add fgu disable action\n");
return ret;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "no irq resource specified\n");
dev_err(dev, "no irq resource specified\n");
return irq;
}
@ -1046,17 +1118,17 @@ static int sc27xx_fgu_probe(struct platform_device *pdev)
irq = gpiod_to_irq(data->gpiod);
if (irq < 0) {
dev_err(&pdev->dev, "failed to translate GPIO to IRQ\n");
dev_err(dev, "failed to translate GPIO to IRQ\n");
return irq;
}
ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
ret = devm_request_threaded_irq(dev, irq, NULL,
sc27xx_fgu_bat_detection,
IRQF_ONESHOT | IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING,
pdev->name, data);
if (ret) {
dev_err(&pdev->dev, "failed to request IRQ\n");
dev_err(dev, "failed to request IRQ\n");
return ret;
}
@ -1093,7 +1165,8 @@ static int sc27xx_fgu_suspend(struct device *dev)
* If we are charging, then no need to enable the FGU interrupts to
* adjust the battery capacity.
*/
if (status != POWER_SUPPLY_STATUS_NOT_CHARGING)
if (status != POWER_SUPPLY_STATUS_NOT_CHARGING &&
status != POWER_SUPPLY_STATUS_DISCHARGING)
return 0;
ret = regmap_update_bits(data->regmap, data->base + SC27XX_FGU_INT_EN,