Commit 17d4ded2 authored by Linus Torvalds's avatar Linus Torvalds

Merge tag 'for-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:

 - power-supply core support for automatic handling of constant battery
   data supplied by firmware

 - generic-adc-battery: major cleanup

 - axp288_charger: fix ACPI issues on x86 Android tablets

 - rk817: cleanup and fix handling for low state of charge

* tag 'for-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (26 commits)
  power: supply: rk817: Fix low SOC bugs
  power: supply: rk817: Drop unneeded debugging code
  power: supply: axp288_charger: Use alt usb-id extcon on some x86 android tablets
  power: supply: generic-adc-battery: style fixes
  power: supply: generic-adc-battery: improve error message
  power: supply: generic-adc-battery: update copyright info
  power: supply: generic-adc-battery: add DT support
  power: supply: generic-adc-battery: add temperature support
  power: supply: generic-adc-battery: simplify read_channel logic
  power: supply: generic-adc-battery: use simple-battery API
  power: supply: generic-adc-battery: drop memory alloc error message
  power: supply: generic-adc-battery: drop charge now support
  power: supply: generic-adc-battery: drop jitter delay support
  power: supply: generic-adc-battery: fix unit scaling
  power: supply: generic-adc-battery: convert to managed resources
  power: supply: core: auto-exposure of simple-battery data
  dt-bindings: power: supply: adc-battery: add binding
  power: supply: bq256xx: Support to disable charger
  power: supply: charger-manager: Use of_property_read_bool() for boolean properties
  power: reset: qcom-pon: drop of_match_ptr for ID table
  ...
parents e81507ac baba1315
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/power/supply/adc-battery.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ADC battery
maintainers:
- Sebastian Reichel <sre@kernel.org>
description:
Basic battery capacity meter, which only reports basic battery data
via ADC channels and optionally indicate that the battery is full by
polling a GPIO line.
The voltage is expected to be measured between the battery terminals
and mandatory. The optional current/power channel is expected to
monitor the current/power flowing out of the battery. Last but not
least the temperature channel is supposed to measure the battery
temperature.
allOf:
- $ref: power-supply.yaml#
properties:
compatible:
const: adc-battery
charged-gpios:
description:
GPIO which signals that the battery is fully charged. The GPIO is
often provided by charger ICs, that are not software controllable.
maxItems: 1
io-channels:
minItems: 1
maxItems: 4
io-channel-names:
minItems: 1
items:
- const: voltage
- enum: [ current, power, temperature ]
- enum: [ power, temperature ]
- const: temperature
monitored-battery: true
required:
- compatible
- io-channels
- io-channel-names
- monitored-battery
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
fuel-gauge {
compatible = "adc-battery";
charged-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
io-channels = <&adc 13>, <&adc 37>;
io-channel-names = "voltage", "current";
power-supplies = <&charger>;
monitored-battery = <&battery>;
};
......@@ -91,7 +91,7 @@ static struct platform_driver pm8916_pon_driver = {
.probe = pm8916_pon_probe,
.driver = {
.name = "pm8916-pon",
.of_match_table = of_match_ptr(pm8916_pon_id_table),
.of_match_table = pm8916_pon_id_table,
},
};
module_platform_driver(pm8916_pon_driver);
......
......@@ -836,6 +836,7 @@ static int axp288_charger_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
struct power_supply_config charger_cfg = {};
const char *extcon_name = NULL;
unsigned int val;
/*
......@@ -872,8 +873,18 @@ static int axp288_charger_probe(struct platform_device *pdev)
return PTR_ERR(info->cable.edev);
}
if (acpi_dev_present(USB_HOST_EXTCON_HID, NULL, -1)) {
info->otg.cable = extcon_get_extcon_dev(USB_HOST_EXTCON_NAME);
/*
* On devices with broken ACPI GPIO event handlers there also is no ACPI
* "INT3496" (USB_HOST_EXTCON_HID) device. x86-android-tablets.ko
* instantiates an "intel-int3496" extcon on these devs as a workaround.
*/
if (acpi_quirk_skip_gpio_event_handlers())
extcon_name = "intel-int3496";
else if (acpi_dev_present(USB_HOST_EXTCON_HID, NULL, -1))
extcon_name = USB_HOST_EXTCON_NAME;
if (extcon_name) {
info->otg.cable = extcon_get_extcon_dev(extcon_name);
if (IS_ERR(info->otg.cable)) {
dev_err_probe(dev, PTR_ERR(info->otg.cable),
"extcon_get_extcon_dev(%s) failed\n",
......
......@@ -1140,7 +1140,7 @@ static const struct i2c_device_id bq24257_i2c_ids[] = {
};
MODULE_DEVICE_TABLE(i2c, bq24257_i2c_ids);
static const struct of_device_id bq24257_of_match[] = {
static const struct of_device_id bq24257_of_match[] __maybe_unused = {
{ .compatible = "ti,bq24250", },
{ .compatible = "ti,bq24251", },
{ .compatible = "ti,bq24257", },
......
......@@ -70,6 +70,9 @@
#define BQ25611D_VBATREG_THRESH_uV 4290000
#define BQ25618_VBATREG_THRESH_uV 4300000
#define BQ256XX_CHG_CONFIG_MASK BIT(4)
#define BQ256XX_CHG_CONFIG_BIT_SHIFT 4
#define BQ256XX_ITERM_MASK GENMASK(3, 0)
#define BQ256XX_ITERM_STEP_uA 60000
#define BQ256XX_ITERM_OFFSET_uA 60000
......@@ -259,6 +262,7 @@ struct bq256xx_device {
* @bq256xx_set_iterm: pointer to instance specific set_iterm function
* @bq256xx_set_iprechg: pointer to instance specific set_iprechg function
* @bq256xx_set_vindpm: pointer to instance specific set_vindpm function
* @bq256xx_set_charge_type: pointer to instance specific set_charge_type function
*
* @bq256xx_def_ichg: default ichg value in microamps
* @bq256xx_def_iindpm: default iindpm value in microamps
......@@ -290,6 +294,7 @@ struct bq256xx_chip_info {
int (*bq256xx_set_iterm)(struct bq256xx_device *bq, int iterm);
int (*bq256xx_set_iprechg)(struct bq256xx_device *bq, int iprechg);
int (*bq256xx_set_vindpm)(struct bq256xx_device *bq, int vindpm);
int (*bq256xx_set_charge_type)(struct bq256xx_device *bq, int type);
int bq256xx_def_ichg;
int bq256xx_def_iindpm;
......@@ -449,6 +454,27 @@ static int bq256xx_get_state(struct bq256xx_device *bq,
return 0;
}
static int bq256xx_set_charge_type(struct bq256xx_device *bq, int type)
{
int chg_config = 0;
switch (type) {
case POWER_SUPPLY_CHARGE_TYPE_NONE:
chg_config = 0x0;
break;
case POWER_SUPPLY_CHARGE_TYPE_TRICKLE:
case POWER_SUPPLY_CHARGE_TYPE_FAST:
chg_config = 0x1;
break;
default:
return -EINVAL;
}
return regmap_update_bits(bq->regmap, BQ256XX_CHARGER_CONTROL_0,
BQ256XX_CHG_CONFIG_MASK,
(chg_config ? 1 : 0) << BQ256XX_CHG_CONFIG_BIT_SHIFT);
}
static int bq256xx_get_ichg_curr(struct bq256xx_device *bq)
{
unsigned int charge_current_limit;
......@@ -915,6 +941,12 @@ static int bq256xx_set_charger_property(struct power_supply *psy,
return ret;
break;
case POWER_SUPPLY_PROP_CHARGE_TYPE:
ret = bq->chip_info->bq256xx_set_charge_type(bq, val->intval);
if (ret)
return ret;
break;
default:
break;
}
......@@ -1197,6 +1229,7 @@ static int bq256xx_property_is_writeable(struct power_supply *psy,
case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
case POWER_SUPPLY_PROP_STATUS:
case POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT:
case POWER_SUPPLY_PROP_CHARGE_TYPE:
return true;
default:
return false;
......@@ -1286,6 +1319,7 @@ static const struct bq256xx_chip_info bq256xx_chip_info_tbl[] = {
.bq256xx_set_iterm = bq256xx_set_term_curr,
.bq256xx_set_iprechg = bq256xx_set_prechrg_curr,
.bq256xx_set_vindpm = bq256xx_set_input_volt_lim,
.bq256xx_set_charge_type = bq256xx_set_charge_type,
.bq256xx_def_ichg = BQ2560X_ICHG_DEF_uA,
.bq256xx_def_iindpm = BQ256XX_IINDPM_DEF_uA,
......@@ -1316,6 +1350,7 @@ static const struct bq256xx_chip_info bq256xx_chip_info_tbl[] = {
.bq256xx_set_iterm = bq256xx_set_term_curr,
.bq256xx_set_iprechg = bq256xx_set_prechrg_curr,
.bq256xx_set_vindpm = bq256xx_set_input_volt_lim,
.bq256xx_set_charge_type = bq256xx_set_charge_type,
.bq256xx_def_ichg = BQ2560X_ICHG_DEF_uA,
.bq256xx_def_iindpm = BQ256XX_IINDPM_DEF_uA,
......@@ -1346,6 +1381,7 @@ static const struct bq256xx_chip_info bq256xx_chip_info_tbl[] = {
.bq256xx_set_iterm = bq256xx_set_term_curr,
.bq256xx_set_iprechg = bq256xx_set_prechrg_curr,
.bq256xx_set_vindpm = bq256xx_set_input_volt_lim,
.bq256xx_set_charge_type = bq256xx_set_charge_type,
.bq256xx_def_ichg = BQ2560X_ICHG_DEF_uA,
.bq256xx_def_iindpm = BQ256XX_IINDPM_DEF_uA,
......@@ -1376,6 +1412,7 @@ static const struct bq256xx_chip_info bq256xx_chip_info_tbl[] = {
.bq256xx_set_iterm = bq256xx_set_term_curr,
.bq256xx_set_iprechg = bq256xx_set_prechrg_curr,
.bq256xx_set_vindpm = bq256xx_set_input_volt_lim,
.bq256xx_set_charge_type = bq256xx_set_charge_type,
.bq256xx_def_ichg = BQ2560X_ICHG_DEF_uA,
.bq256xx_def_iindpm = BQ256XX_IINDPM_DEF_uA,
......@@ -1406,6 +1443,7 @@ static const struct bq256xx_chip_info bq256xx_chip_info_tbl[] = {
.bq256xx_set_iterm = bq256xx_set_term_curr,
.bq256xx_set_iprechg = bq256xx_set_prechrg_curr,
.bq256xx_set_vindpm = bq256xx_set_input_volt_lim,
.bq256xx_set_charge_type = bq256xx_set_charge_type,
.bq256xx_def_ichg = BQ25611D_ICHG_DEF_uA,
.bq256xx_def_iindpm = BQ256XX_IINDPM_DEF_uA,
......@@ -1436,6 +1474,7 @@ static const struct bq256xx_chip_info bq256xx_chip_info_tbl[] = {
.bq256xx_set_iterm = bq25618_619_set_term_curr,
.bq256xx_set_iprechg = bq25618_619_set_prechrg_curr,
.bq256xx_set_vindpm = bq256xx_set_input_volt_lim,
.bq256xx_set_charge_type = bq256xx_set_charge_type,
.bq256xx_def_ichg = BQ25618_ICHG_DEF_uA,
.bq256xx_def_iindpm = BQ256XX_IINDPM_DEF_uA,
......@@ -1466,6 +1505,7 @@ static const struct bq256xx_chip_info bq256xx_chip_info_tbl[] = {
.bq256xx_set_iterm = bq25618_619_set_term_curr,
.bq256xx_set_iprechg = bq25618_619_set_prechrg_curr,
.bq256xx_set_vindpm = bq256xx_set_input_volt_lim,
.bq256xx_set_charge_type = bq256xx_set_charge_type,
.bq256xx_def_ichg = BQ25618_ICHG_DEF_uA,
.bq256xx_def_iindpm = BQ256XX_IINDPM_DEF_uA,
......
......@@ -1622,7 +1622,7 @@ static const struct i2c_device_id bq25890_i2c_ids[] = {
};
MODULE_DEVICE_TABLE(i2c, bq25890_i2c_ids);
static const struct of_device_id bq25890_of_match[] = {
static const struct of_device_id bq25890_of_match[] __maybe_unused = {
{ .compatible = "ti,bq25890", },
{ .compatible = "ti,bq25892", },
{ .compatible = "ti,bq25895", },
......
......@@ -1331,7 +1331,7 @@ static struct charger_desc *of_cm_parse_desc(struct device *dev)
of_property_read_string(np, "cm-thermal-zone", &desc->thermal_zone);
of_property_read_u32(np, "cm-battery-cold", &desc->temp_min);
if (of_get_property(np, "cm-battery-cold-in-minus", NULL))
if (of_property_read_bool(np, "cm-battery-cold-in-minus"))
desc->temp_min *= -1;
of_property_read_u32(np, "cm-battery-hot", &desc->temp_max);
of_property_read_u32(np, "cm-battery-temp-diff", &desc->temp_diff);
......
// SPDX-License-Identifier: GPL-2.0
/*
* Generic battery driver code using IIO
* Generic battery driver using IIO
* Copyright (C) 2012, Anish Kumar <anish198519851985@gmail.com>
* based on jz4740-battery.c
* based on s3c_adc_battery.c
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*
* Copyright (c) 2023, Sebastian Reichel <sre@kernel.org>
*/
#include <linux/interrupt.h>
#include <linux/platform_device.h>
......@@ -22,7 +17,8 @@
#include <linux/slab.h>
#include <linux/iio/consumer.h>
#include <linux/iio/types.h>
#include <linux/power/generic-adc-battery.h>
#include <linux/of.h>
#include <linux/devm-helpers.h>
#define JITTER_DEFAULT 10 /* hope 10ms is enough */
......@@ -30,6 +26,7 @@ enum gab_chan_type {
GAB_VOLTAGE = 0,
GAB_CURRENT,
GAB_POWER,
GAB_TEMP,
GAB_MAX_CHAN_TYPE
};
......@@ -41,17 +38,15 @@ static const char *const gab_chan_name[] = {
[GAB_VOLTAGE] = "voltage",
[GAB_CURRENT] = "current",
[GAB_POWER] = "power",
[GAB_TEMP] = "temperature",
};
struct gab {
struct power_supply *psy;
struct power_supply_desc psy_desc;
struct iio_channel *channel[GAB_MAX_CHAN_TYPE];
struct gab_platform_data *pdata;
struct delayed_work bat_work;
int level;
int status;
bool cable_plugged;
struct gpio_desc *charge_finished;
};
......@@ -69,15 +64,6 @@ static void gab_ext_power_changed(struct power_supply *psy)
static const enum power_supply_property gab_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
POWER_SUPPLY_PROP_MODEL_NAME,
};
/*
......@@ -88,6 +74,7 @@ static const enum power_supply_property gab_dyn_props[] = {
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_POWER_NOW,
POWER_SUPPLY_PROP_TEMP,
};
static bool gab_charge_finished(struct gab *adc_bat)
......@@ -97,119 +84,53 @@ static bool gab_charge_finished(struct gab *adc_bat)
return gpiod_get_value(adc_bat->charge_finished);
}
static int gab_get_status(struct gab *adc_bat)
{
struct gab_platform_data *pdata = adc_bat->pdata;
struct power_supply_info *bat_info;
bat_info = &pdata->battery_info;
if (adc_bat->level == bat_info->charge_full_design)
return POWER_SUPPLY_STATUS_FULL;
return adc_bat->status;
}
static enum gab_chan_type gab_prop_to_chan(enum power_supply_property psp)
{
switch (psp) {
case POWER_SUPPLY_PROP_POWER_NOW:
return GAB_POWER;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
return GAB_VOLTAGE;
case POWER_SUPPLY_PROP_CURRENT_NOW:
return GAB_CURRENT;
default:
WARN_ON(1);
break;
}
return GAB_POWER;
}
static int read_channel(struct gab *adc_bat, enum power_supply_property psp,
static int gab_read_channel(struct gab *adc_bat, enum gab_chan_type channel,
int *result)
{
int ret;
int chan_index;
chan_index = gab_prop_to_chan(psp);
ret = iio_read_channel_processed(adc_bat->channel[chan_index],
result);
ret = iio_read_channel_processed(adc_bat->channel[channel], result);
if (ret < 0)
pr_err("read channel error\n");
dev_err(&adc_bat->psy->dev, "read channel error: %d\n", ret);
else
*result *= 1000;
return ret;
}
static int gab_get_property(struct power_supply *psy,
enum power_supply_property psp, union power_supply_propval *val)
{
struct gab *adc_bat;
struct gab_platform_data *pdata;
struct power_supply_info *bat_info;
int result = 0;
int ret = 0;
adc_bat = to_generic_bat(psy);
if (!adc_bat) {
dev_err(&psy->dev, "no battery infos ?!\n");
return -EINVAL;
}
pdata = adc_bat->pdata;
bat_info = &pdata->battery_info;
struct gab *adc_bat = to_generic_bat(psy);
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
val->intval = gab_get_status(adc_bat);
break;
case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
val->intval = 0;
break;
case POWER_SUPPLY_PROP_CHARGE_NOW:
val->intval = pdata->cal_charge(result);
break;
val->intval = adc_bat->status;
return 0;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
return gab_read_channel(adc_bat, GAB_VOLTAGE, &val->intval);
case POWER_SUPPLY_PROP_CURRENT_NOW:
return gab_read_channel(adc_bat, GAB_CURRENT, &val->intval);
case POWER_SUPPLY_PROP_POWER_NOW:
ret = read_channel(adc_bat, psp, &result);
if (ret < 0)
goto err;
val->intval = result;
break;
case POWER_SUPPLY_PROP_TECHNOLOGY:
val->intval = bat_info->technology;
break;
case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
val->intval = bat_info->voltage_min_design;
break;
case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
val->intval = bat_info->voltage_max_design;
break;
case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
val->intval = bat_info->charge_full_design;
break;
case POWER_SUPPLY_PROP_MODEL_NAME:
val->strval = bat_info->name;
break;
return gab_read_channel(adc_bat, GAB_POWER, &val->intval);
case POWER_SUPPLY_PROP_TEMP:
return gab_read_channel(adc_bat, GAB_TEMP, &val->intval);
default:
return -EINVAL;
}
err:
return ret;
}
static void gab_work(struct work_struct *work)
{
struct gab *adc_bat;
struct delayed_work *delayed_work;
bool is_plugged;
int status;
delayed_work = to_delayed_work(work);
adc_bat = container_of(delayed_work, struct gab, bat_work);
status = adc_bat->status;
is_plugged = power_supply_am_i_supplied(adc_bat->psy);
adc_bat->cable_plugged = is_plugged;
if (!is_plugged)
if (!power_supply_am_i_supplied(adc_bat->psy))
adc_bat->status = POWER_SUPPLY_STATUS_DISCHARGING;
else if (gab_charge_finished(adc_bat))
adc_bat->status = POWER_SUPPLY_STATUS_NOT_CHARGING;
......@@ -223,12 +144,10 @@ static void gab_work(struct work_struct *work)
static irqreturn_t gab_charged(int irq, void *dev_id)
{
struct gab *adc_bat = dev_id;
struct gab_platform_data *pdata = adc_bat->pdata;
int delay;
delay = pdata->jitter_delay ? pdata->jitter_delay : JITTER_DEFAULT;
schedule_delayed_work(&adc_bat->bat_work,
msecs_to_jiffies(delay));
msecs_to_jiffies(JITTER_DEFAULT));
return IRQ_HANDLED;
}
......@@ -237,7 +156,6 @@ static int gab_probe(struct platform_device *pdev)
struct gab *adc_bat;
struct power_supply_desc *psy_desc;
struct power_supply_config psy_cfg = {};
struct gab_platform_data *pdata = pdev->dev.platform_data;
enum power_supply_property *properties;
int ret = 0;
int chan;
......@@ -245,35 +163,31 @@ static int gab_probe(struct platform_device *pdev)
bool any = false;
adc_bat = devm_kzalloc(&pdev->dev, sizeof(*adc_bat), GFP_KERNEL);
if (!adc_bat) {
dev_err(&pdev->dev, "failed to allocate memory\n");
if (!adc_bat)
return -ENOMEM;
}
psy_cfg.of_node = pdev->dev.of_node;
psy_cfg.drv_data = adc_bat;
psy_desc = &adc_bat->psy_desc;
psy_desc->name = pdata->battery_info.name;
psy_desc->name = dev_name(&pdev->dev);
/* bootup default values for the battery */
adc_bat->cable_plugged = false;
adc_bat->status = POWER_SUPPLY_STATUS_DISCHARGING;
psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
psy_desc->get_property = gab_get_property;
psy_desc->external_power_changed = gab_ext_power_changed;
adc_bat->pdata = pdata;
/*
* copying the static properties and allocating extra memory for holding
* the extra configurable properties received from platform data.
*/
properties = kcalloc(ARRAY_SIZE(gab_props) +
properties = devm_kcalloc(&pdev->dev,
ARRAY_SIZE(gab_props) +
ARRAY_SIZE(gab_chan_name),
sizeof(*properties),
GFP_KERNEL);
if (!properties) {
ret = -ENOMEM;
goto first_mem_fail;
}
if (!properties)
return -ENOMEM;
memcpy(properties, gab_props, sizeof(gab_props));
......@@ -282,12 +196,13 @@ static int gab_probe(struct platform_device *pdev)
* based on the channel supported by consumer device.
*/
for (chan = 0; chan < ARRAY_SIZE(gab_chan_name); chan++) {
adc_bat->channel[chan] = iio_channel_get(&pdev->dev,
gab_chan_name[chan]);
adc_bat->channel[chan] = devm_iio_channel_get(&pdev->dev, gab_chan_name[chan]);
if (IS_ERR(adc_bat->channel[chan])) {
ret = PTR_ERR(adc_bat->channel[chan]);
if (ret != -ENODEV)
return dev_err_probe(&pdev->dev, ret, "Failed to get ADC channel %s\n", gab_chan_name[chan]);
adc_bat->channel[chan] = NULL;
} else {
} else if (adc_bat->channel[chan]) {
/* copying properties for supported channels only */
int index2;
......@@ -302,10 +217,8 @@ static int gab_probe(struct platform_device *pdev)
}
/* none of the channels are supported so let's bail out */
if (!any) {
ret = -ENODEV;
goto second_mem_fail;
}
if (!any)
return dev_err_probe(&pdev->dev, -ENODEV, "Failed to get any ADC channel\n");
/*
* Total number of properties is equal to static properties
......@@ -316,25 +229,24 @@ static int gab_probe(struct platform_device *pdev)
psy_desc->properties = properties;
psy_desc->num_properties = index;
adc_bat->psy = power_supply_register(&pdev->dev, psy_desc, &psy_cfg);
if (IS_ERR(adc_bat->psy)) {
ret = PTR_ERR(adc_bat->psy);
goto err_reg_fail;
}
adc_bat->psy = devm_power_supply_register(&pdev->dev, psy_desc, &psy_cfg);
if (IS_ERR(adc_bat->psy))
return dev_err_probe(&pdev->dev, PTR_ERR(adc_bat->psy), "Failed to register power-supply device\n");
INIT_DELAYED_WORK(&adc_bat->bat_work, gab_work);
ret = devm_delayed_work_autocancel(&pdev->dev, &adc_bat->bat_work, gab_work);
if (ret)
return dev_err_probe(&pdev->dev, ret, "Failed to register delayed work\n");
adc_bat->charge_finished = devm_gpiod_get_optional(&pdev->dev,
"charged", GPIOD_IN);
adc_bat->charge_finished = devm_gpiod_get_optional(&pdev->dev, "charged", GPIOD_IN);
if (adc_bat->charge_finished) {
int irq;
irq = gpiod_to_irq(adc_bat->charge_finished);
ret = request_any_context_irq(irq, gab_charged,
ret = devm_request_any_context_irq(&pdev->dev, irq, gab_charged,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"battery charged", adc_bat);
if (ret < 0)
goto gpio_req_fail;
return dev_err_probe(&pdev->dev, ret, "Failed to register irq\n");
}
platform_set_drvdata(pdev, adc_bat);
......@@ -343,38 +255,6 @@ static int gab_probe(struct platform_device *pdev)
schedule_delayed_work(&adc_bat->bat_work,
msecs_to_jiffies(0));
return 0;
gpio_req_fail:
power_supply_unregister(adc_bat->psy);
err_reg_fail:
for (chan = 0; chan < ARRAY_SIZE(gab_chan_name); chan++) {
if (adc_bat->channel[chan])
iio_channel_release(adc_bat->channel[chan]);
}
second_mem_fail:
kfree(properties);
first_mem_fail:
return ret;
}
static int gab_remove(struct platform_device *pdev)
{
int chan;
struct gab *adc_bat = platform_get_drvdata(pdev);
power_supply_unregister(adc_bat->psy);
if (adc_bat->charge_finished)
free_irq(gpiod_to_irq(adc_bat->charge_finished), adc_bat);
for (chan = 0; chan < ARRAY_SIZE(gab_chan_name); chan++) {
if (adc_bat->channel[chan])
iio_channel_release(adc_bat->channel[chan]);
}
kfree(adc_bat->psy_desc.properties);
cancel_delayed_work_sync(&adc_bat->bat_work);
return 0;
}
static int __maybe_unused gab_suspend(struct device *dev)
......@@ -389,26 +269,29 @@ static int __maybe_unused gab_suspend(struct device *dev)
static int __maybe_unused gab_resume(struct device *dev)
{
struct gab *adc_bat = dev_get_drvdata(dev);
struct gab_platform_data *pdata = adc_bat->pdata;
int delay;
delay = pdata->jitter_delay ? pdata->jitter_delay : JITTER_DEFAULT;
/* Schedule timer to check current status */
schedule_delayed_work(&adc_bat->bat_work,
msecs_to_jiffies(delay));
msecs_to_jiffies(JITTER_DEFAULT));
return 0;
}
static SIMPLE_DEV_PM_OPS(gab_pm_ops, gab_suspend, gab_resume);
static const struct of_device_id gab_match[] = {
{ .compatible = "adc-battery" },
{ }
};
MODULE_DEVICE_TABLE(of, gab_match);
static struct platform_driver gab_driver = {
.driver = {
.name = "generic-adc-battery",
.pm = &gab_pm_ops,
.of_match_table = gab_match,
},
.probe = gab_probe,
.remove = gab_remove,
};
module_platform_driver(gab_driver);
......
......@@ -598,7 +598,7 @@ static void lp8727_remove(struct i2c_client *cl)
lp8727_unregister_psy(pchg);
}
static const struct of_device_id lp8727_dt_ids[] = {
static const struct of_device_id lp8727_dt_ids[] __maybe_unused = {
{ .compatible = "ti,lp8727", },
{ }
};
......
......@@ -908,7 +908,7 @@ static const struct i2c_device_id ltc4162l_i2c_id_table[] = {
};
MODULE_DEVICE_TABLE(i2c, ltc4162l_i2c_id_table);
static const struct of_device_id ltc4162l_of_match[] = {
static const struct of_device_id ltc4162l_of_match[] __maybe_unused = {
{ .compatible = "lltc,ltc4162-l", },
{ },
};
......
......@@ -388,7 +388,7 @@ static int __power_supply_get_supplier_property(struct device *dev, void *_data)
struct psy_get_supplier_prop_data *data = _data;
if (__power_supply_is_supplied_by(epsy, data->psy))
if (!epsy->desc->get_property(epsy, data->psp, data->val))
if (!power_supply_get_property(epsy, data->psp, data->val))
return 1; /* Success */
return 0; /* Continue iterating */
......@@ -832,6 +832,133 @@ void power_supply_put_battery_info(struct power_supply *psy,
}
EXPORT_SYMBOL_GPL(power_supply_put_battery_info);
const enum power_supply_property power_supply_battery_info_properties[] = {
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN,
POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX,
POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
POWER_SUPPLY_PROP_TEMP_MIN,
POWER_SUPPLY_PROP_TEMP_MAX,
};
EXPORT_SYMBOL_GPL(power_supply_battery_info_properties);
const size_t power_supply_battery_info_properties_size = ARRAY_SIZE(power_supply_battery_info_properties);
EXPORT_SYMBOL_GPL(power_supply_battery_info_properties_size);
bool power_supply_battery_info_has_prop(struct power_supply_battery_info *info,
enum power_supply_property psp)
{
if (!info)
return false;
switch (psp) {
case POWER_SUPPLY_PROP_TECHNOLOGY:
return info->technology != POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
return info->energy_full_design_uwh >= 0;
case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
return info->charge_full_design_uah >= 0;
case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
return info->voltage_min_design_uv >= 0;
case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
return info->voltage_max_design_uv >= 0;
case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
return info->precharge_current_ua >= 0;
case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
return info->charge_term_current_ua >= 0;
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
return info->constant_charge_current_max_ua >= 0;
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
return info->constant_charge_voltage_max_uv >= 0;
case POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN:
return info->temp_ambient_alert_min > INT_MIN;
case POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX:
return info->temp_ambient_alert_max < INT_MAX;
case POWER_SUPPLY_PROP_TEMP_ALERT_MIN:
return info->temp_alert_min > INT_MIN;
case POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
return info->temp_alert_max < INT_MAX;
case POWER_SUPPLY_PROP_TEMP_MIN:
return info->temp_min > INT_MIN;
case POWER_SUPPLY_PROP_TEMP_MAX:
return info->temp_max < INT_MAX;
default:
return false;
}
}
EXPORT_SYMBOL_GPL(power_supply_battery_info_has_prop);
int power_supply_battery_info_get_prop(struct power_supply_battery_info *info,
enum power_supply_property psp,
union power_supply_propval *val)
{
if (!info)
return -EINVAL;
if (!power_supply_battery_info_has_prop(info, psp))
return -EINVAL;
switch (psp) {
case POWER_SUPPLY_PROP_TECHNOLOGY:
val->intval = info->technology;
return 0;
case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
val->intval = info->energy_full_design_uwh;
return 0;
case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
val->intval = info->charge_full_design_uah;
return 0;
case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
val->intval = info->voltage_min_design_uv;
return 0;
case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
val->intval = info->voltage_max_design_uv;
return 0;
case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
val->intval = info->precharge_current_ua;
return 0;
case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
val->intval = info->charge_term_current_ua;
return 0;
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
val->intval = info->constant_charge_current_max_ua;
return 0;
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
val->intval = info->constant_charge_voltage_max_uv;
return 0;
case POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN:
val->intval = info->temp_ambient_alert_min;
return 0;
case POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX:
val->intval = info->temp_ambient_alert_max;
return 0;
case POWER_SUPPLY_PROP_TEMP_ALERT_MIN:
val->intval = info->temp_alert_min;
return 0;
case POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
val->intval = info->temp_alert_max;
return 0;
case POWER_SUPPLY_PROP_TEMP_MIN:
val->intval = info->temp_min;
return 0;
case POWER_SUPPLY_PROP_TEMP_MAX:
val->intval = info->temp_max;
return 0;
default:
return -EINVAL;
}
}
EXPORT_SYMBOL_GPL(power_supply_battery_info_get_prop);
/**
* power_supply_temp2resist_simple() - find the battery internal resistance
* percent from temperature
......@@ -1046,6 +1173,22 @@ bool power_supply_battery_bti_in_range(struct power_supply_battery_info *info,
}
EXPORT_SYMBOL_GPL(power_supply_battery_bti_in_range);
static bool psy_has_property(const struct power_supply_desc *psy_desc,
enum power_supply_property psp)
{
bool found = false;
int i;
for (i = 0; i < psy_desc->num_properties; i++) {
if (psy_desc->properties[i] == psp) {
found = true;
break;
}
}
return found;
}
int power_supply_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
......@@ -1056,7 +1199,12 @@ int power_supply_get_property(struct power_supply *psy,
return -ENODEV;
}
if (psy_has_property(psy->desc, psp))
return psy->desc->get_property(psy, psp, val);
else if (power_supply_battery_info_has_prop(psy->battery_info, psp))
return power_supply_battery_info_get_prop(psy->battery_info, psp, val);
else
return -EINVAL;
}
EXPORT_SYMBOL_GPL(power_supply_get_property);
......@@ -1117,22 +1265,6 @@ void power_supply_unreg_notifier(struct notifier_block *nb)
}
EXPORT_SYMBOL_GPL(power_supply_unreg_notifier);
static bool psy_has_property(const struct power_supply_desc *psy_desc,
enum power_supply_property psp)
{
bool found = false;
int i;
for (i = 0; i < psy_desc->num_properties; i++) {
if (psy_desc->properties[i] == psp) {
found = true;
break;
}
}
return found;
}
#ifdef CONFIG_THERMAL
static int power_supply_read_temp(struct thermal_zone_device *tzd,
int *temp)
......@@ -1255,6 +1387,17 @@ __power_supply_register(struct device *parent,
goto check_supplies_failed;
}
/*
* Expose constant battery info, if it is available. While there are
* some chargers accessing constant battery data, we only want to
* expose battery data to userspace for battery devices.
*/
if (desc->type == POWER_SUPPLY_TYPE_BATTERY) {
rc = power_supply_get_battery_info(psy, &psy->battery_info);
if (rc && rc != -ENODEV && rc != -ENOENT)
goto check_supplies_failed;
}
spin_lock_init(&psy->changed_lock);
rc = device_add(dev);
if (rc)
......
......@@ -221,9 +221,10 @@ static struct power_supply_attr power_supply_attrs[] = {
POWER_SUPPLY_ATTR(MANUFACTURER),
POWER_SUPPLY_ATTR(SERIAL_NUMBER),
};
#define POWER_SUPPLY_ATTR_CNT ARRAY_SIZE(power_supply_attrs)
static struct attribute *
__power_supply_attrs[ARRAY_SIZE(power_supply_attrs) + 1];
__power_supply_attrs[POWER_SUPPLY_ATTR_CNT + 1];
static struct power_supply_attr *to_ps_attr(struct device_attribute *attr)
{
......@@ -380,6 +381,9 @@ static umode_t power_supply_attr_is_visible(struct kobject *kobj,
}
}
if (power_supply_battery_info_has_prop(psy->battery_info, attrno))
return mode;
return 0;
}
......@@ -461,6 +465,10 @@ static int add_prop_uevent(const struct device *dev, struct kobj_uevent_env *env
int power_supply_uevent(const struct device *dev, struct kobj_uevent_env *env)
{
const struct power_supply *psy = dev_get_drvdata(dev);
const enum power_supply_property *battery_props =
power_supply_battery_info_properties;
unsigned long psy_drv_properties[POWER_SUPPLY_ATTR_CNT /
sizeof(unsigned long) + 1] = {0};
int ret = 0, j;
char *prop_buf;
......@@ -482,12 +490,25 @@ int power_supply_uevent(const struct device *dev, struct kobj_uevent_env *env)
goto out;
for (j = 0; j < psy->desc->num_properties; j++) {
set_bit(psy->desc->properties[j], psy_drv_properties);
ret = add_prop_uevent(dev, env, psy->desc->properties[j],
prop_buf);
if (ret)
goto out;
}
for (j = 0; j < power_supply_battery_info_properties_size; j++) {
if (test_bit(battery_props[j], psy_drv_properties))
continue;
if (!power_supply_battery_info_has_prop(psy->battery_info,
battery_props[j]))
continue;
ret = add_prop_uevent(dev, env, battery_props[j],
prop_buf);
if (ret)
goto out;
}
out:
free_page((unsigned long)prop_buf);
......
......@@ -335,6 +335,20 @@ static int rk817_bat_calib_cap(struct rk817_charger *charger)
charger->fcc_mah * 1000);
}
/*
* Set the SOC to 0 if we are below the minimum system voltage.
*/
if (volt_avg <= charger->bat_voltage_min_design_uv) {
charger->soc = 0;
charge_now_adc = CHARGE_TO_ADC(0, charger->res_div);
put_unaligned_be32(charge_now_adc, bulk_reg);
regmap_bulk_write(rk808->regmap,
RK817_GAS_GAUGE_Q_INIT_H3, bulk_reg, 4);
dev_warn(charger->dev,
"Battery voltage %d below minimum voltage %d\n",
volt_avg, charger->bat_voltage_min_design_uv);
}
rk817_record_battery_nvram_values(charger);
return 0;
......@@ -710,9 +724,10 @@ static int rk817_read_battery_nvram_values(struct rk817_charger *charger)
/*
* Read the nvram for state of charge. Sanity check for values greater
* than 100 (10000). If the value is off it should get corrected
* automatically when the voltage drops to the min (soc is 0) or when
* the battery is full (soc is 100).
* than 100 (10000) or less than 0, because other things (BSP kernels,
* U-Boot, or even i2cset) can write to this register. If the value is
* off it should get corrected automatically when the voltage drops to
* the min (soc is 0) or when the battery is full (soc is 100).
*/
ret = regmap_bulk_read(charger->rk808->regmap,
RK817_GAS_GAUGE_BAT_R1, bulk_reg, 3);
......@@ -721,6 +736,8 @@ static int rk817_read_battery_nvram_values(struct rk817_charger *charger)
charger->soc = get_unaligned_le24(bulk_reg);
if (charger->soc > 10000)
charger->soc = 10000;
if (charger->soc < 0)
charger->soc = 0;
return 0;
}
......@@ -731,8 +748,8 @@ rk817_read_or_set_full_charge_on_boot(struct rk817_charger *charger,
{
struct rk808 *rk808 = charger->rk808;
u8 bulk_reg[4];
u32 boot_voltage, boot_charge_mah, tmp;
int ret, reg, off_time;
u32 boot_voltage, boot_charge_mah;
int ret, reg, off_time, tmp;
bool first_boot;
/*
......@@ -785,10 +802,12 @@ rk817_read_or_set_full_charge_on_boot(struct rk817_charger *charger,
regmap_bulk_read(rk808->regmap, RK817_GAS_GAUGE_Q_PRES_H3,
bulk_reg, 4);
tmp = get_unaligned_be32(bulk_reg);
if (tmp < 0)
tmp = 0;
boot_charge_mah = ADC_TO_CHARGE_UAH(tmp,
charger->res_div) / 1000;
/*
* Check if the columb counter has been off for more than 300
* Check if the columb counter has been off for more than 30
* minutes as it tends to drift downward. If so, re-init soc
* with the boot voltage instead. Note the unit values for the
* OFF_CNT register appear to be in decaminutes and stops
......@@ -799,7 +818,7 @@ rk817_read_or_set_full_charge_on_boot(struct rk817_charger *charger,
* than 0 on a reboot anyway.
*/
regmap_read(rk808->regmap, RK817_GAS_GAUGE_OFF_CNT, &off_time);
if (off_time >= 30) {
if (off_time >= 3) {
regmap_bulk_read(rk808->regmap,
RK817_GAS_GAUGE_PWRON_VOL_H,
bulk_reg, 2);
......@@ -816,19 +835,6 @@ rk817_read_or_set_full_charge_on_boot(struct rk817_charger *charger,
}
}
regmap_bulk_read(rk808->regmap, RK817_GAS_GAUGE_PWRON_VOL_H,
bulk_reg, 2);
tmp = get_unaligned_be16(bulk_reg);
boot_voltage = (charger->voltage_k * tmp) + 1000 * charger->voltage_b;
regmap_bulk_read(rk808->regmap, RK817_GAS_GAUGE_Q_PRES_H3,
bulk_reg, 4);
tmp = get_unaligned_be32(bulk_reg);
boot_charge_mah = ADC_TO_CHARGE_UAH(tmp, charger->res_div) / 1000;
regmap_bulk_read(rk808->regmap, RK817_GAS_GAUGE_OCV_VOL_H,
bulk_reg, 2);
tmp = get_unaligned_be16(bulk_reg);
boot_voltage = (charger->voltage_k * tmp) + 1000 * charger->voltage_b;
/*
* Now we have our full charge capacity and soc, init the columb
* counter.
......
......@@ -1722,7 +1722,7 @@ static const struct i2c_device_id rt9455_i2c_id_table[] = {
};
MODULE_DEVICE_TABLE(i2c, rt9455_i2c_id_table);
static const struct of_device_id rt9455_of_match[] = {
static const struct of_device_id rt9455_of_match[] __maybe_unused = {
{ .compatible = "richtek,rt9455", },
{ },
};
......
......@@ -1126,7 +1126,7 @@ static int twl4030_bci_remove(struct platform_device *pdev)
return 0;
}
static const struct of_device_id twl_bci_of_match[] = {
static const struct of_device_id twl_bci_of_match[] __maybe_unused = {
{.compatible = "ti,twl4030-bci", },
{ }
};
......
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2012, Anish Kumar <anish198519851985@gmail.com>
*/
#ifndef GENERIC_ADC_BATTERY_H
#define GENERIC_ADC_BATTERY_H
/**
* struct gab_platform_data - platform_data for generic adc iio battery driver.
* @battery_info: recommended structure to specify static power supply
* parameters
* @cal_charge: calculate charge level.
* @jitter_delay: delay required after the interrupt to check battery
* status.Default set is 10ms.
*/
struct gab_platform_data {
struct power_supply_info battery_info;
int (*cal_charge)(long value);
int jitter_delay;
};
#endif /* GENERIC_ADC_BATTERY_H */
......@@ -301,6 +301,7 @@ struct power_supply {
bool initialized;
bool removing;
atomic_t use_cnt;
struct power_supply_battery_info *battery_info;
#ifdef CONFIG_THERMAL
struct thermal_zone_device *tzd;
struct thermal_cooling_device *tcd;
......@@ -791,10 +792,17 @@ devm_power_supply_get_by_phandle(struct device *dev, const char *property)
{ return NULL; }
#endif /* CONFIG_OF */
extern const enum power_supply_property power_supply_battery_info_properties[];
extern const size_t power_supply_battery_info_properties_size;
extern int power_supply_get_battery_info(struct power_supply *psy,
struct power_supply_battery_info **info_out);
extern void power_supply_put_battery_info(struct power_supply *psy,
struct power_supply_battery_info *info);
extern bool power_supply_battery_info_has_prop(struct power_supply_battery_info *info,
enum power_supply_property psp);
extern int power_supply_battery_info_get_prop(struct power_supply_battery_info *info,
enum power_supply_property psp,
union power_supply_propval *val);
extern int power_supply_ocv2cap_simple(struct power_supply_battery_ocv_table *table,
int table_len, int ocv);
extern struct power_supply_battery_ocv_table *
......
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