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 POWER_SUPPLY_PROP_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 <[email protected]> --- drivers/power/Kconfig | 5 +++-- drivers/power/bq24257_charger.c | 34 +++++++++++++++++++++++++++++++--- 2 files changed, 34 insertions(+), 5 deletions(-) diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index 08beeed..0a2b033 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -396,11 +396,12 @@ config CHARGER_BQ24190 Say Y to enable support for the TI BQ24190 battery charger. config CHARGER_BQ24257 - tristate "TI BQ24257 battery charger driver" + tristate "TI BQ24250/251/257 battery charger driver" depends on I2C && GPIOLIB depends on REGMAP_I2C help - Say Y to enable support for the TI BQ24257 battery charger. + Say Y to enable support for the TI BQ24250, BQ24251, and BQ24257 battery + chargers. config CHARGER_BQ24735 tristate "TI BQ24735 battery charger support" diff --git a/drivers/power/bq24257_charger.c b/drivers/power/bq24257_charger.c index 0b34528..45232bd 100644 --- a/drivers/power/bq24257_charger.c +++ b/drivers/power/bq24257_charger.c @@ -13,6 +13,10 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * + * Datasheets: + * http://www.ti.com/product/bq24250 + * http://www.ti.com/product/bq24251 + * http://www.ti.com/product/bq24257 */ #include <linux/module.h> @@ -41,6 +45,12 @@ #define BQ24257_ILIM_SET_DELAY 1000 /* msec */ +enum bq2425x_chip { + BQ24250, + BQ24251, + BQ24257, +}; + enum bq24257_fields { F_WD_FAULT, F_WD_EN, F_STAT, F_FAULT, /* REG 1 */ F_RESET, F_IILIMIT, F_EN_STAT, F_EN_TERM, F_CE, F_HZ_MODE, /* REG 2 */ @@ -71,6 +81,9 @@ struct bq24257_device { struct device *dev; struct power_supply *charger; + enum bq2425x_chip chip; + char chip_name[I2C_NAME_SIZE]; + struct regmap *rmap; struct regmap_field *rmap_fields[F_MAX_FIELDS]; @@ -250,6 +263,10 @@ static int bq24257_power_supply_get_property(struct power_supply *psy, val->strval = BQ24257_MANUFACTURER; break; + case POWER_SUPPLY_PROP_MODEL_NAME: + val->strval = bq->chip_name; + break; + case POWER_SUPPLY_PROP_ONLINE: val->intval = state.power_good; break; @@ -574,6 +591,7 @@ static int bq24257_hw_init(struct bq24257_device *bq) static enum power_supply_property bq24257_power_supply_props[] = { POWER_SUPPLY_PROP_MANUFACTURER, + POWER_SUPPLY_PROP_MODEL_NAME, POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_PROP_ONLINE, POWER_SUPPLY_PROP_HEALTH, @@ -686,6 +704,8 @@ static int bq24257_probe(struct i2c_client *client, bq->client = client; bq->dev = dev; + bq->chip = (enum bq2425x_chip)id->driver_data; + strncpy(bq->chip_name, id->name, I2C_NAME_SIZE); mutex_init(&bq->lock); @@ -828,19 +848,27 @@ static const struct dev_pm_ops bq24257_pm = { }; static const struct i2c_device_id bq24257_i2c_ids[] = { - { "bq24257", 0 }, + { "bq24250", BQ24250 }, + { "bq24251", BQ24251 }, + { "bq24257", BQ24257 }, {}, }; MODULE_DEVICE_TABLE(i2c, bq24257_i2c_ids); static const struct of_device_id bq24257_of_match[] = { - { .compatible = "ti,bq24257", }, + { + .compatible = "ti,bq24250", + .compatible = "ti,bq24251", + .compatible = "ti,bq24257", + }, { }, }; MODULE_DEVICE_TABLE(of, bq24257_of_match); static const struct acpi_device_id bq24257_acpi_match[] = { - {"BQ242570", 0}, + { "BQ242500", BQ24250 }, + { "BQ242510", BQ24251 }, + { "BQ242570", BQ24257 }, {}, }; MODULE_DEVICE_TABLE(acpi, bq24257_acpi_match); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
