power: bq24257: Add basic support for bq24250/bq24251
This patch adds basic support for bq24250 and bq24251 which are very similar to the bq24257 the driver was originally written for. Basic support means the ability to select a device through Kconfig, DT and ACPI, an instance variable allowing to check which chip is active, and the reporting back of the selected device through the model_name power supply sysfs property. This patch by itself is not sufficient to actually use those two added devices in a real-world setting due to some feature differences which are addressed by other patches in this series. Signed-off-by: Andreas Dannenberg <dannenberg@ti.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>hifive-unleashed-5.1
Andreas Dannenberg
Sebastian Reichel
parent
fff59df105
commit
bf02dca9ee
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@ -409,12 +409,13 @@ config CHARGER_BQ24190
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Say Y to enable support for the TI BQ24190 battery charger.
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config CHARGER_BQ24257
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tristate "TI BQ24257 battery charger driver"
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tristate "TI BQ24250/24251/24257 battery charger driver"
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depends on I2C
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depends on GPIOLIB || COMPILE_TEST
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depends on REGMAP_I2C
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help
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Say Y to enable support for the TI BQ24257 battery charger.
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Say Y to enable support for the TI BQ24250, BQ24251, and BQ24257 battery
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chargers.
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config CHARGER_BQ24735
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tristate "TI BQ24735 battery charger support"
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@ -13,6 +13,10 @@
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Datasheets:
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* http://www.ti.com/product/bq24250
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* http://www.ti.com/product/bq24251
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* http://www.ti.com/product/bq24257
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*/
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#include <linux/module.h>
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@ -40,6 +44,22 @@
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#define BQ24257_ILIM_SET_DELAY 1000 /* msec */
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/*
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* When adding support for new devices make sure that enum bq2425x_chip and
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* bq2425x_chip_name[] always stay in sync!
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*/
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enum bq2425x_chip {
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BQ24250,
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BQ24251,
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BQ24257,
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};
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static const char *const bq2425x_chip_name[] = {
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"bq24250",
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"bq24251",
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"bq24257",
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};
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enum bq24257_fields {
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F_WD_FAULT, F_WD_EN, F_STAT, F_FAULT, /* REG 1 */
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F_RESET, F_IILIMIT, F_EN_STAT, F_EN_TERM, F_CE, F_HZ_MODE, /* REG 2 */
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@ -70,6 +90,8 @@ struct bq24257_device {
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struct device *dev;
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struct power_supply *charger;
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enum bq2425x_chip chip;
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struct regmap *rmap;
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struct regmap_field *rmap_fields[F_MAX_FIELDS];
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@ -248,6 +270,10 @@ static int bq24257_power_supply_get_property(struct power_supply *psy,
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val->strval = BQ24257_MANUFACTURER;
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break;
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case POWER_SUPPLY_PROP_MODEL_NAME:
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val->strval = bq2425x_chip_name[bq->chip];
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break;
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case POWER_SUPPLY_PROP_ONLINE:
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val->intval = state.power_good;
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break;
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@ -561,6 +587,7 @@ static int bq24257_hw_init(struct bq24257_device *bq)
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static enum power_supply_property bq24257_power_supply_props[] = {
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POWER_SUPPLY_PROP_MANUFACTURER,
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POWER_SUPPLY_PROP_MODEL_NAME,
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POWER_SUPPLY_PROP_STATUS,
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POWER_SUPPLY_PROP_ONLINE,
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POWER_SUPPLY_PROP_HEALTH,
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@ -644,6 +671,7 @@ static int bq24257_probe(struct i2c_client *client,
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{
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struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
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struct device *dev = &client->dev;
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const struct acpi_device_id *acpi_id;
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struct bq24257_device *bq;
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int ret;
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int i;
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@ -660,6 +688,18 @@ static int bq24257_probe(struct i2c_client *client,
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bq->client = client;
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bq->dev = dev;
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if (ACPI_HANDLE(dev)) {
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acpi_id = acpi_match_device(dev->driver->acpi_match_table,
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&client->dev);
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if (!acpi_id) {
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dev_err(dev, "Failed to match ACPI device\n");
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return -ENODEV;
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}
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bq->chip = (enum bq2425x_chip)acpi_id->driver_data;
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} else {
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bq->chip = (enum bq2425x_chip)id->driver_data;
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}
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mutex_init(&bq->lock);
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bq->rmap = devm_regmap_init_i2c(client, &bq24257_regmap_config);
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@ -722,7 +762,7 @@ static int bq24257_probe(struct i2c_client *client,
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bq24257_irq_handler_thread,
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IRQF_TRIGGER_FALLING |
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IRQF_TRIGGER_RISING | IRQF_ONESHOT,
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"bq24257", bq);
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bq2425x_chip_name[bq->chip], bq);
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if (ret) {
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dev_err(dev, "Failed to request IRQ #%d\n", client->irq);
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return ret;
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@ -793,19 +833,25 @@ static const struct dev_pm_ops bq24257_pm = {
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};
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static const struct i2c_device_id bq24257_i2c_ids[] = {
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{ "bq24257", 0 },
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{ "bq24250", BQ24250 },
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{ "bq24251", BQ24251 },
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{ "bq24257", BQ24257 },
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{},
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};
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MODULE_DEVICE_TABLE(i2c, bq24257_i2c_ids);
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static const struct of_device_id bq24257_of_match[] = {
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{ .compatible = "ti,bq24250", },
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{ .compatible = "ti,bq24251", },
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{ .compatible = "ti,bq24257", },
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{ },
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};
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MODULE_DEVICE_TABLE(of, bq24257_of_match);
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static const struct acpi_device_id bq24257_acpi_match[] = {
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{"BQ242570", 0},
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{ "BQ242500", BQ24250 },
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{ "BQ242510", BQ24251 },
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{ "BQ242570", BQ24257 },
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{},
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};
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MODULE_DEVICE_TABLE(acpi, bq24257_acpi_match);
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