static int tps65217_charger_probe(struct platform_device *pdev)
{
struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);
struct tps65217_charger *charger;
struct power_supply_config cfg = {};
int ret;
dev_dbg(&pdev->dev, "%s\n", __func__);
charger = devm_kzalloc(&pdev->dev, sizeof(*charger), GFP_KERNEL);
if (!charger)
return -ENOMEM;
platform_set_drvdata(pdev, charger);
charger->tps = tps;
charger->dev = &pdev->dev;
cfg.of_node = pdev->dev.of_node;
cfg.drv_data = charger;
charger->ac = devm_power_supply_register(&pdev->dev,
&tps65217_charger_desc,
&cfg);
if (IS_ERR(charger->ac)) {
dev_err(&pdev->dev, "failed: power supply register\n");
return PTR_ERR(charger->ac);
}
ret = tps65217_config_charger(charger);
if (ret < 0) {
dev_err(charger->dev, "charger config failed, err %d\n", ret);
return ret;
}
charger->poll_task = kthread_run(tps65217_charger_poll_task,
charger, "ktps65217charger");
if (IS_ERR(charger->poll_task)) {
ret = PTR_ERR(charger->poll_task);
dev_err(charger->dev, "Unable to run kthread err %d\n", ret);
return ret;
}
return 0;
}
static int max8903_probe(struct platform_device *pdev)
{
struct max8903_data *data;
struct device *dev = &pdev->dev;
struct max8903_pdata *pdata = pdev->dev.platform_data;
struct power_supply_config psy_cfg = {};
int ret = 0;
int gpio;
int ta_in = 0;
int usb_in = 0;
data = devm_kzalloc(dev, sizeof(struct max8903_data), GFP_KERNEL);
if (data == NULL) {
dev_err(dev, "Cannot allocate memory.\n");
return -ENOMEM;
}
memcpy(&data->pdata, pdata, sizeof(struct max8903_pdata));
data->dev = dev;
platform_set_drvdata(pdev, data);
if (pdata->dc_valid == false && pdata->usb_valid == false) {
dev_err(dev, "No valid power sources.\n");
return -EINVAL;
}
if (pdata->dc_valid) {
if (pdata->dok && gpio_is_valid(pdata->dok) &&
pdata->dcm && gpio_is_valid(pdata->dcm)) {
gpio = pdata->dok; /* PULL_UPed Interrupt */
ta_in = gpio_get_value(gpio) ? 0 : 1;
gpio = pdata->dcm; /* Output */
gpio_set_value(gpio, ta_in);
} else {
dev_err(dev, "When DC is wired, DOK and DCM should"
" be wired as well.\n");
return -EINVAL;
}
} else {
if (pdata->dcm) {
if (gpio_is_valid(pdata->dcm))
gpio_set_value(pdata->dcm, 0);
else {
dev_err(dev, "Invalid pin: dcm.\n");
return -EINVAL;
}
}
}
if (pdata->usb_valid) {
if (pdata->uok && gpio_is_valid(pdata->uok)) {
gpio = pdata->uok;
usb_in = gpio_get_value(gpio) ? 0 : 1;
} else {
dev_err(dev, "When USB is wired, UOK should be wired."
"as well.\n");
return -EINVAL;
}
}
if (pdata->cen) {
if (gpio_is_valid(pdata->cen)) {
gpio_set_value(pdata->cen, (ta_in || usb_in) ? 0 : 1);
} else {
dev_err(dev, "Invalid pin: cen.\n");
return -EINVAL;
}
}
if (pdata->chg) {
if (!gpio_is_valid(pdata->chg)) {
dev_err(dev, "Invalid pin: chg.\n");
return -EINVAL;
}
}
if (pdata->flt) {
if (!gpio_is_valid(pdata->flt)) {
dev_err(dev, "Invalid pin: flt.\n");
return -EINVAL;
}
}
if (pdata->usus) {
if (!gpio_is_valid(pdata->usus)) {
dev_err(dev, "Invalid pin: usus.\n");
return -EINVAL;
}
}
data->fault = false;
data->ta_in = ta_in;
data->usb_in = usb_in;
data->psy_desc.name = "max8903_charger";
data->psy_desc.type = (ta_in) ? POWER_SUPPLY_TYPE_MAINS :
((usb_in) ? POWER_SUPPLY_TYPE_USB :
POWER_SUPPLY_TYPE_BATTERY);
data->psy_desc.get_property = max8903_get_property;
data->psy_desc.properties = max8903_charger_props;
data->psy_desc.num_properties = ARRAY_SIZE(max8903_charger_props);
psy_cfg.drv_data = data;
data->psy = devm_power_supply_register(dev, &data->psy_desc, &psy_cfg);
if (IS_ERR(data->psy)) {
dev_err(dev, "failed: power supply register.\n");
return PTR_ERR(data->psy);
}
if (pdata->dc_valid) {
ret = devm_request_threaded_irq(dev, gpio_to_irq(pdata->dok),
NULL, max8903_dcin,
IRQF_TRIGGER_FALLING |
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
"MAX8903 DC IN", data);
if (ret) {
dev_err(dev, "Cannot request irq %d for DC (%d)\n",
gpio_to_irq(pdata->dok), ret);
return ret;
}
}
if (pdata->usb_valid) {
ret = devm_request_threaded_irq(dev, gpio_to_irq(pdata->uok),
NULL, max8903_usbin,
IRQF_TRIGGER_FALLING |
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
"MAX8903 USB IN", data);
if (ret) {
dev_err(dev, "Cannot request irq %d for USB (%d)\n",
gpio_to_irq(pdata->uok), ret);
return ret;
}
}
if (pdata->flt) {
ret = devm_request_threaded_irq(dev, gpio_to_irq(pdata->flt),
NULL, max8903_fault,
IRQF_TRIGGER_FALLING |
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
"MAX8903 Fault", data);
if (ret) {
dev_err(dev, "Cannot request irq %d for Fault (%d)\n",
gpio_to_irq(pdata->flt), ret);
return ret;
}
}
return 0;
}
static int olpc_battery_probe(struct platform_device *pdev)
{
struct power_supply_config bat_psy_cfg = {};
struct power_supply_config ac_psy_cfg = {};
struct olpc_battery_data *data;
uint8_t status;
uint8_t ecver;
int ret;
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
platform_set_drvdata(pdev, data);
/* See if the EC is already there and get the EC revision */
ret = olpc_ec_cmd(EC_FIRMWARE_REV, NULL, 0, &ecver, 1);
if (ret)
return ret;
if (of_find_compatible_node(NULL, NULL, "olpc,xo1.75-ec")) {
/* XO 1.75 */
data->new_proto = true;
data->little_endian = true;
} else if (ecver > 0x44) {
/* XO 1 or 1.5 with a new EC firmware. */
data->new_proto = true;
} else if (ecver < 0x44) {
/*
* We've seen a number of EC protocol changes; this driver
* requires the latest EC protocol, supported by 0x44 and above.
*/
printk(KERN_NOTICE "OLPC EC version 0x%02x too old for "
"battery driver.\n", ecver);
return -ENXIO;
}
ret = olpc_ec_cmd(EC_BAT_STATUS, NULL, 0, &status, 1);
if (ret)
return ret;
/* Ignore the status. It doesn't actually matter */
ac_psy_cfg.of_node = pdev->dev.of_node;
ac_psy_cfg.drv_data = data;
data->olpc_ac = devm_power_supply_register(&pdev->dev, &olpc_ac_desc,
&ac_psy_cfg);
if (IS_ERR(data->olpc_ac))
return PTR_ERR(data->olpc_ac);
if (of_device_is_compatible(pdev->dev.of_node, "olpc,xo1.5-battery")) {
/* XO-1.5 */
olpc_bat_desc.properties = olpc_xo15_bat_props;
olpc_bat_desc.num_properties = ARRAY_SIZE(olpc_xo15_bat_props);
} else {
/* XO-1 */
olpc_bat_desc.properties = olpc_xo1_bat_props;
olpc_bat_desc.num_properties = ARRAY_SIZE(olpc_xo1_bat_props);
}
bat_psy_cfg.of_node = pdev->dev.of_node;
bat_psy_cfg.drv_data = data;
bat_psy_cfg.attr_grp = olpc_bat_sysfs_groups;
data->olpc_bat = devm_power_supply_register(&pdev->dev, &olpc_bat_desc,
&bat_psy_cfg);
if (IS_ERR(data->olpc_bat))
return PTR_ERR(data->olpc_bat);
if (olpc_ec_wakeup_available()) {
device_set_wakeup_capable(&data->olpc_ac->dev, true);
device_set_wakeup_capable(&data->olpc_bat->dev, true);
}
return 0;
}
static int bq24735_charger_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int ret;
struct bq24735 *charger;
struct power_supply_desc *supply_desc;
struct power_supply_config psy_cfg = {};
char *name;
charger = devm_kzalloc(&client->dev, sizeof(*charger), GFP_KERNEL);
if (!charger)
return -ENOMEM;
charger->pdata = client->dev.platform_data;
if (IS_ENABLED(CONFIG_OF) && !charger->pdata && client->dev.of_node)
charger->pdata = bq24735_parse_dt_data(client);
if (!charger->pdata) {
dev_err(&client->dev, "no platform data provided\n");
return -EINVAL;
}
name = (char *)charger->pdata->name;
if (!name) {
name = devm_kasprintf(&client->dev, GFP_KERNEL,
"bq24735@%s",
dev_name(&client->dev));
if (!name) {
dev_err(&client->dev, "Failed to alloc device name\n");
return -ENOMEM;
}
}
charger->client = client;
supply_desc = &charger->charger_desc;
supply_desc->name = name;
supply_desc->type = POWER_SUPPLY_TYPE_MAINS;
supply_desc->properties = bq24735_charger_properties;
supply_desc->num_properties = ARRAY_SIZE(bq24735_charger_properties);
supply_desc->get_property = bq24735_charger_get_property;
psy_cfg.supplied_to = charger->pdata->supplied_to;
psy_cfg.num_supplicants = charger->pdata->num_supplicants;
psy_cfg.of_node = client->dev.of_node;
psy_cfg.drv_data = charger;
i2c_set_clientdata(client, charger);
ret = bq24735_read_word(client, BQ24735_MANUFACTURER_ID);
if (ret < 0) {
dev_err(&client->dev, "Failed to read manufacturer id : %d\n",
ret);
return ret;
} else if (ret != 0x0040) {
dev_err(&client->dev,
"manufacturer id mismatch. 0x0040 != 0x%04x\n", ret);
return -ENODEV;
}
ret = bq24735_read_word(client, BQ24735_DEVICE_ID);
if (ret < 0) {
dev_err(&client->dev, "Failed to read device id : %d\n", ret);
return ret;
} else if (ret != 0x000B) {
dev_err(&client->dev,
"device id mismatch. 0x000b != 0x%04x\n", ret);
return -ENODEV;
}
if (gpio_is_valid(charger->pdata->status_gpio)) {
ret = devm_gpio_request(&client->dev,
charger->pdata->status_gpio,
name);
if (ret) {
dev_err(&client->dev,
"Failed GPIO request for GPIO %d: %d\n",
charger->pdata->status_gpio, ret);
}
charger->pdata->status_gpio_valid = !ret;
}
ret = bq24735_config_charger(charger);
if (ret < 0) {
dev_err(&client->dev, "failed in configuring charger");
return ret;
}
/* check for AC adapter presence */
if (bq24735_charger_is_present(charger)) {
ret = bq24735_enable_charging(charger);
if (ret < 0) {
dev_err(&client->dev, "Failed to enable charging\n");
return ret;
}
}
charger->charger = devm_power_supply_register(&client->dev, supply_desc,
&psy_cfg);
if (IS_ERR(charger->charger)) {
ret = PTR_ERR(charger->charger);
dev_err(&client->dev, "Failed to register power supply: %d\n",
ret);
return ret;
}
if (client->irq) {
ret = devm_request_threaded_irq(&client->dev, client->irq,
NULL, bq24735_charger_isr,
IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING |
IRQF_ONESHOT,
supply_desc->name,
charger->charger);
if (ret) {
dev_err(&client->dev,
"Unable to register IRQ %d err %d\n",
client->irq, ret);
return ret;
}
}
return 0;
}
static int max77650_charger_probe(struct platform_device *pdev)
{
struct power_supply_config pscfg = {};
struct max77650_charger_data *chg;
struct power_supply *battery;
struct device *dev, *parent;
int rv, chg_irq, chgin_irq;
unsigned int prop;
dev = &pdev->dev;
parent = dev->parent;
chg = devm_kzalloc(dev, sizeof(*chg), GFP_KERNEL);
if (!chg)
return -ENOMEM;
platform_set_drvdata(pdev, chg);
chg->map = dev_get_regmap(parent, NULL);
if (!chg->map)
return -ENODEV;
chg->dev = dev;
pscfg.of_node = dev->of_node;
pscfg.drv_data = chg;
chg_irq = platform_get_irq_byname(pdev, "CHG");
if (chg_irq < 0)
return chg_irq;
chgin_irq = platform_get_irq_byname(pdev, "CHGIN");
if (chgin_irq < 0)
return chgin_irq;
rv = devm_request_any_context_irq(dev, chg_irq,
max77650_charger_check_status,
IRQF_ONESHOT, "chg", chg);
if (rv < 0)
return rv;
rv = devm_request_any_context_irq(dev, chgin_irq,
max77650_charger_check_status,
IRQF_ONESHOT, "chgin", chg);
if (rv < 0)
return rv;
battery = devm_power_supply_register(dev,
&max77650_battery_desc, &pscfg);
if (IS_ERR(battery))
return PTR_ERR(battery);
rv = of_property_read_u32(dev->of_node,
"input-voltage-min-microvolt", &prop);
if (rv == 0) {
rv = max77650_charger_set_vchgin_min(chg, prop);
if (rv)
return rv;
}
rv = of_property_read_u32(dev->of_node,
"input-current-limit-microamp", &prop);
if (rv == 0) {
rv = max77650_charger_set_ichgin_lim(chg, prop);
if (rv)
return rv;
}
return max77650_charger_enable(chg);
}
static int gpio_charger_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
const struct gpio_charger_platform_data *pdata = dev->platform_data;
struct power_supply_config psy_cfg = {};
struct gpio_charger *gpio_charger;
struct power_supply_desc *charger_desc;
unsigned long flags;
int irq, ret;
if (!pdata && !dev->of_node) {
dev_err(dev, "No platform data\n");
return -ENOENT;
}
gpio_charger = devm_kzalloc(dev, sizeof(*gpio_charger), GFP_KERNEL);
if (!gpio_charger)
return -ENOMEM;
/*
* This will fetch a GPIO descriptor from device tree, ACPI or
* boardfile descriptor tables. It's good to try this first.
*/
gpio_charger->gpiod = devm_gpiod_get(dev, NULL, GPIOD_IN);
/*
* If this fails and we're not using device tree, try the
* legacy platform data method.
*/
if (IS_ERR(gpio_charger->gpiod) && !dev->of_node) {
/* Non-DT: use legacy GPIO numbers */
if (!gpio_is_valid(pdata->gpio)) {
dev_err(dev, "Invalid gpio pin in pdata\n");
return -EINVAL;
}
flags = GPIOF_IN;
if (pdata->gpio_active_low)
flags |= GPIOF_ACTIVE_LOW;
ret = devm_gpio_request_one(dev, pdata->gpio, flags,
dev_name(dev));
if (ret) {
dev_err(dev, "Failed to request gpio pin: %d\n", ret);
return ret;
}
/* Then convert this to gpiod for now */
gpio_charger->gpiod = gpio_to_desc(pdata->gpio);
} else if (IS_ERR(gpio_charger->gpiod)) {
/* Just try again if this happens */
if (PTR_ERR(gpio_charger->gpiod) == -EPROBE_DEFER)
return -EPROBE_DEFER;
dev_err(dev, "error getting GPIO descriptor\n");
return PTR_ERR(gpio_charger->gpiod);
}
charger_desc = &gpio_charger->charger_desc;
charger_desc->properties = gpio_charger_properties;
charger_desc->num_properties = ARRAY_SIZE(gpio_charger_properties);
charger_desc->get_property = gpio_charger_get_property;
psy_cfg.of_node = dev->of_node;
psy_cfg.drv_data = gpio_charger;
if (pdata) {
charger_desc->name = pdata->name;
charger_desc->type = pdata->type;
psy_cfg.supplied_to = pdata->supplied_to;
psy_cfg.num_supplicants = pdata->num_supplicants;
} else {
charger_desc->name = dev->of_node->name;
charger_desc->type = gpio_charger_get_type(dev);
}
if (!charger_desc->name)
charger_desc->name = pdev->name;
gpio_charger->charger = devm_power_supply_register(dev, charger_desc,
&psy_cfg);
if (IS_ERR(gpio_charger->charger)) {
ret = PTR_ERR(gpio_charger->charger);
dev_err(dev, "Failed to register power supply: %d\n", ret);
return ret;
}
irq = gpiod_to_irq(gpio_charger->gpiod);
if (irq > 0) {
ret = devm_request_any_context_irq(dev, irq, gpio_charger_irq,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
dev_name(dev), gpio_charger->charger);
if (ret < 0)
dev_warn(dev, "Failed to request irq: %d\n", ret);
else
gpio_charger->irq = irq;
}
platform_set_drvdata(pdev, gpio_charger);
device_init_wakeup(dev, 1);
return 0;
}
static int axp20x_usb_power_probe(struct platform_device *pdev)
{
struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
struct power_supply_config psy_cfg = {};
struct axp20x_usb_power *power;
static const char * const axp20x_irq_names[] = { "VBUS_PLUGIN",
"VBUS_REMOVAL", "VBUS_VALID", "VBUS_NOT_VALID", NULL };
static const char * const axp22x_irq_names[] = {
"VBUS_PLUGIN", "VBUS_REMOVAL", NULL };
const char * const *irq_names;
const struct power_supply_desc *usb_power_desc;
int i, irq, ret;
if (!of_device_is_available(pdev->dev.of_node))
return -ENODEV;
if (!axp20x) {
dev_err(&pdev->dev, "Parent drvdata not set\n");
return -EINVAL;
}
power = devm_kzalloc(&pdev->dev, sizeof(*power), GFP_KERNEL);
if (!power)
return -ENOMEM;
power->axp20x_id = (enum axp20x_variants)of_device_get_match_data(
&pdev->dev);
power->np = pdev->dev.of_node;
power->regmap = axp20x->regmap;
if (power->axp20x_id == AXP202_ID) {
/* Enable vbus valid checking */
ret = regmap_update_bits(power->regmap, AXP20X_VBUS_MON,
AXP20X_VBUS_MON_VBUS_VALID,
AXP20X_VBUS_MON_VBUS_VALID);
if (ret)
return ret;
if (IS_ENABLED(CONFIG_AXP20X_ADC))
ret = configure_iio_channels(pdev, power);
else
ret = configure_adc_registers(power);
if (ret)
return ret;
usb_power_desc = &axp20x_usb_power_desc;
irq_names = axp20x_irq_names;
} else if (power->axp20x_id == AXP221_ID ||
power->axp20x_id == AXP223_ID) {
usb_power_desc = &axp22x_usb_power_desc;
irq_names = axp22x_irq_names;
} else {
dev_err(&pdev->dev, "Unsupported AXP variant: %ld\n",
axp20x->variant);
return -EINVAL;
}
psy_cfg.of_node = pdev->dev.of_node;
psy_cfg.drv_data = power;
power->supply = devm_power_supply_register(&pdev->dev, usb_power_desc,
&psy_cfg);
if (IS_ERR(power->supply))
return PTR_ERR(power->supply);
/* Request irqs after registering, as irqs may trigger immediately */
for (i = 0; irq_names[i]; i++) {
irq = platform_get_irq_byname(pdev, irq_names[i]);
if (irq < 0) {
dev_warn(&pdev->dev, "No IRQ for %s: %d\n",
irq_names[i], irq);
continue;
}
irq = regmap_irq_get_virq(axp20x->regmap_irqc, irq);
ret = devm_request_any_context_irq(&pdev->dev, irq,
axp20x_usb_power_irq, 0, DRVNAME, power);
if (ret < 0)
dev_warn(&pdev->dev, "Error requesting %s IRQ: %d\n",
irq_names[i], ret);
}
return 0;
}
