diff options
Diffstat (limited to 'drivers/power/supply/ip5xxx_power.c')
| -rw-r--r-- | drivers/power/supply/ip5xxx_power.c | 638 |
1 files changed, 638 insertions, 0 deletions
diff --git a/drivers/power/supply/ip5xxx_power.c b/drivers/power/supply/ip5xxx_power.c new file mode 100644 index 000000000..00221e9c0 --- /dev/null +++ b/drivers/power/supply/ip5xxx_power.c @@ -0,0 +1,638 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (C) 2021 Samuel Holland <samuel@sholland.org> + +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/power_supply.h> +#include <linux/regmap.h> + +#define IP5XXX_SYS_CTL0 0x01 +#define IP5XXX_SYS_CTL0_WLED_DET_EN BIT(4) +#define IP5XXX_SYS_CTL0_WLED_EN BIT(3) +#define IP5XXX_SYS_CTL0_BOOST_EN BIT(2) +#define IP5XXX_SYS_CTL0_CHARGER_EN BIT(1) +#define IP5XXX_SYS_CTL1 0x02 +#define IP5XXX_SYS_CTL1_LIGHT_SHDN_EN BIT(1) +#define IP5XXX_SYS_CTL1_LOAD_PWRUP_EN BIT(0) +#define IP5XXX_SYS_CTL2 0x0c +#define IP5XXX_SYS_CTL2_LIGHT_SHDN_TH GENMASK(7, 3) +#define IP5XXX_SYS_CTL3 0x03 +#define IP5XXX_SYS_CTL3_LONG_PRESS_TIME_SEL GENMASK(7, 6) +#define IP5XXX_SYS_CTL3_BTN_SHDN_EN BIT(5) +#define IP5XXX_SYS_CTL4 0x04 +#define IP5XXX_SYS_CTL4_SHDN_TIME_SEL GENMASK(7, 6) +#define IP5XXX_SYS_CTL4_VIN_PULLOUT_BOOST_EN BIT(5) +#define IP5XXX_SYS_CTL5 0x07 +#define IP5XXX_SYS_CTL5_NTC_DIS BIT(6) +#define IP5XXX_SYS_CTL5_WLED_MODE_SEL BIT(1) +#define IP5XXX_SYS_CTL5_BTN_SHDN_SEL BIT(0) +#define IP5XXX_CHG_CTL1 0x22 +#define IP5XXX_CHG_CTL1_BOOST_UVP_SEL GENMASK(3, 2) +#define IP5XXX_CHG_CTL2 0x24 +#define IP5XXX_CHG_CTL2_BAT_TYPE_SEL GENMASK(6, 5) +#define IP5XXX_CHG_CTL2_BAT_TYPE_SEL_4_2V (0x0 << 5) +#define IP5XXX_CHG_CTL2_BAT_TYPE_SEL_4_3V (0x1 << 5) +#define IP5XXX_CHG_CTL2_BAT_TYPE_SEL_4_35V (0x2 << 5) +#define IP5XXX_CHG_CTL2_CONST_VOLT_SEL GENMASK(2, 1) +#define IP5XXX_CHG_CTL4 0x26 +#define IP5XXX_CHG_CTL4_BAT_TYPE_SEL_EN BIT(6) +#define IP5XXX_CHG_CTL4A 0x25 +#define IP5XXX_CHG_CTL4A_CONST_CUR_SEL GENMASK(4, 0) +#define IP5XXX_MFP_CTL0 0x51 +#define IP5XXX_MFP_CTL1 0x52 +#define IP5XXX_GPIO_CTL2 0x53 +#define IP5XXX_GPIO_CTL2A 0x54 +#define IP5XXX_GPIO_CTL3 0x55 +#define IP5XXX_READ0 0x71 +#define IP5XXX_READ0_CHG_STAT GENMASK(7, 5) +#define IP5XXX_READ0_CHG_STAT_IDLE (0x0 << 5) +#define IP5XXX_READ0_CHG_STAT_TRICKLE (0x1 << 5) +#define IP5XXX_READ0_CHG_STAT_CONST_VOLT (0x2 << 5) +#define IP5XXX_READ0_CHG_STAT_CONST_CUR (0x3 << 5) +#define IP5XXX_READ0_CHG_STAT_CONST_VOLT_STOP (0x4 << 5) +#define IP5XXX_READ0_CHG_STAT_FULL (0x5 << 5) +#define IP5XXX_READ0_CHG_STAT_TIMEOUT (0x6 << 5) +#define IP5XXX_READ0_CHG_OP BIT(4) +#define IP5XXX_READ0_CHG_END BIT(3) +#define IP5XXX_READ0_CONST_VOLT_TIMEOUT BIT(2) +#define IP5XXX_READ0_CHG_TIMEOUT BIT(1) +#define IP5XXX_READ0_TRICKLE_TIMEOUT BIT(0) +#define IP5XXX_READ0_TIMEOUT GENMASK(2, 0) +#define IP5XXX_READ1 0x72 +#define IP5XXX_READ1_WLED_PRESENT BIT(7) +#define IP5XXX_READ1_LIGHT_LOAD BIT(6) +#define IP5XXX_READ1_VIN_OVERVOLT BIT(5) +#define IP5XXX_READ2 0x77 +#define IP5XXX_READ2_BTN_PRESS BIT(3) +#define IP5XXX_READ2_BTN_LONG_PRESS BIT(1) +#define IP5XXX_READ2_BTN_SHORT_PRESS BIT(0) +#define IP5XXX_BATVADC_DAT0 0xa2 +#define IP5XXX_BATVADC_DAT1 0xa3 +#define IP5XXX_BATIADC_DAT0 0xa4 +#define IP5XXX_BATIADC_DAT1 0xa5 +#define IP5XXX_BATOCV_DAT0 0xa8 +#define IP5XXX_BATOCV_DAT1 0xa9 + +struct ip5xxx { + struct regmap *regmap; + bool initialized; +}; + +/* + * The IP5xxx charger only responds on I2C when it is "awake". The charger is + * generally only awake when VIN is powered or when its boost converter is + * enabled. Going into shutdown resets all register values. To handle this: + * 1) When any bus error occurs, assume the charger has gone into shutdown. + * 2) Attempt the initialization sequence on each subsequent register access + * until it succeeds. + */ +static int ip5xxx_read(struct ip5xxx *ip5xxx, unsigned int reg, + unsigned int *val) +{ + int ret; + + ret = regmap_read(ip5xxx->regmap, reg, val); + if (ret) + ip5xxx->initialized = false; + + return ret; +} + +static int ip5xxx_update_bits(struct ip5xxx *ip5xxx, unsigned int reg, + unsigned int mask, unsigned int val) +{ + int ret; + + ret = regmap_update_bits(ip5xxx->regmap, reg, mask, val); + if (ret) + ip5xxx->initialized = false; + + return ret; +} + +static int ip5xxx_initialize(struct power_supply *psy) +{ + struct ip5xxx *ip5xxx = power_supply_get_drvdata(psy); + int ret; + + if (ip5xxx->initialized) + return 0; + + /* + * Disable shutdown under light load. + * Enable power on when under load. + */ + ret = ip5xxx_update_bits(ip5xxx, IP5XXX_SYS_CTL1, + IP5XXX_SYS_CTL1_LIGHT_SHDN_EN | + IP5XXX_SYS_CTL1_LOAD_PWRUP_EN, + IP5XXX_SYS_CTL1_LOAD_PWRUP_EN); + if (ret) + return ret; + + /* + * Enable shutdown after a long button press (as configured below). + */ + ret = ip5xxx_update_bits(ip5xxx, IP5XXX_SYS_CTL3, + IP5XXX_SYS_CTL3_BTN_SHDN_EN, + IP5XXX_SYS_CTL3_BTN_SHDN_EN); + if (ret) + return ret; + + /* + * Power on automatically when VIN is removed. + */ + ret = ip5xxx_update_bits(ip5xxx, IP5XXX_SYS_CTL4, + IP5XXX_SYS_CTL4_VIN_PULLOUT_BOOST_EN, + IP5XXX_SYS_CTL4_VIN_PULLOUT_BOOST_EN); + if (ret) + return ret; + + /* + * Enable the NTC. + * Configure the button for two presses => LED, long press => shutdown. + */ + ret = ip5xxx_update_bits(ip5xxx, IP5XXX_SYS_CTL5, + IP5XXX_SYS_CTL5_NTC_DIS | + IP5XXX_SYS_CTL5_WLED_MODE_SEL | + IP5XXX_SYS_CTL5_BTN_SHDN_SEL, + IP5XXX_SYS_CTL5_WLED_MODE_SEL | + IP5XXX_SYS_CTL5_BTN_SHDN_SEL); + if (ret) + return ret; + + ip5xxx->initialized = true; + dev_dbg(psy->dev.parent, "Initialized after power on\n"); + + return 0; +} + +static const enum power_supply_property ip5xxx_battery_properties[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_CHARGE_TYPE, + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_VOLTAGE_OCV, + POWER_SUPPLY_PROP_CURRENT_NOW, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX, +}; + +static int ip5xxx_battery_get_status(struct ip5xxx *ip5xxx, int *val) +{ + unsigned int rval; + int ret; + + ret = ip5xxx_read(ip5xxx, IP5XXX_READ0, &rval); + if (ret) + return ret; + + switch (rval & IP5XXX_READ0_CHG_STAT) { + case IP5XXX_READ0_CHG_STAT_IDLE: + *val = POWER_SUPPLY_STATUS_DISCHARGING; + break; + case IP5XXX_READ0_CHG_STAT_TRICKLE: + case IP5XXX_READ0_CHG_STAT_CONST_CUR: + case IP5XXX_READ0_CHG_STAT_CONST_VOLT: + *val = POWER_SUPPLY_STATUS_CHARGING; + break; + case IP5XXX_READ0_CHG_STAT_CONST_VOLT_STOP: + case IP5XXX_READ0_CHG_STAT_FULL: + *val = POWER_SUPPLY_STATUS_FULL; + break; + case IP5XXX_READ0_CHG_STAT_TIMEOUT: + *val = POWER_SUPPLY_STATUS_NOT_CHARGING; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int ip5xxx_battery_get_charge_type(struct ip5xxx *ip5xxx, int *val) +{ + unsigned int rval; + int ret; + + ret = ip5xxx_read(ip5xxx, IP5XXX_READ0, &rval); + if (ret) + return ret; + + switch (rval & IP5XXX_READ0_CHG_STAT) { + case IP5XXX_READ0_CHG_STAT_IDLE: + case IP5XXX_READ0_CHG_STAT_CONST_VOLT_STOP: + case IP5XXX_READ0_CHG_STAT_FULL: + case IP5XXX_READ0_CHG_STAT_TIMEOUT: + *val = POWER_SUPPLY_CHARGE_TYPE_NONE; + break; + case IP5XXX_READ0_CHG_STAT_TRICKLE: + *val = POWER_SUPPLY_CHARGE_TYPE_TRICKLE; + break; + case IP5XXX_READ0_CHG_STAT_CONST_CUR: + case IP5XXX_READ0_CHG_STAT_CONST_VOLT: + *val = POWER_SUPPLY_CHARGE_TYPE_STANDARD; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int ip5xxx_battery_get_health(struct ip5xxx *ip5xxx, int *val) +{ + unsigned int rval; + int ret; + + ret = ip5xxx_read(ip5xxx, IP5XXX_READ0, &rval); + if (ret) + return ret; + + if (rval & IP5XXX_READ0_TIMEOUT) + *val = POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE; + else + *val = POWER_SUPPLY_HEALTH_GOOD; + + return 0; +} + +static int ip5xxx_battery_get_voltage_max(struct ip5xxx *ip5xxx, int *val) +{ + unsigned int rval; + int ret; + + ret = ip5xxx_read(ip5xxx, IP5XXX_CHG_CTL2, &rval); + if (ret) + return ret; + + /* + * It is not clear what this will return if + * IP5XXX_CHG_CTL4_BAT_TYPE_SEL_EN is not set... + */ + switch (rval & IP5XXX_CHG_CTL2_BAT_TYPE_SEL) { + case IP5XXX_CHG_CTL2_BAT_TYPE_SEL_4_2V: + *val = 4200000; + break; + case IP5XXX_CHG_CTL2_BAT_TYPE_SEL_4_3V: + *val = 4300000; + break; + case IP5XXX_CHG_CTL2_BAT_TYPE_SEL_4_35V: + *val = 4350000; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int ip5xxx_battery_read_adc(struct ip5xxx *ip5xxx, + u8 lo_reg, u8 hi_reg, int *val) +{ + unsigned int hi, lo; + int ret; + + ret = ip5xxx_read(ip5xxx, lo_reg, &lo); + if (ret) + return ret; + + ret = ip5xxx_read(ip5xxx, hi_reg, &hi); + if (ret) + return ret; + + *val = sign_extend32(hi << 8 | lo, 13); + + return 0; +} + +static int ip5xxx_battery_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct ip5xxx *ip5xxx = power_supply_get_drvdata(psy); + int raw, ret, vmax; + unsigned int rval; + + ret = ip5xxx_initialize(psy); + if (ret) + return ret; + + switch (psp) { + case POWER_SUPPLY_PROP_STATUS: + return ip5xxx_battery_get_status(ip5xxx, &val->intval); + + case POWER_SUPPLY_PROP_CHARGE_TYPE: + return ip5xxx_battery_get_charge_type(ip5xxx, &val->intval); + + case POWER_SUPPLY_PROP_HEALTH: + return ip5xxx_battery_get_health(ip5xxx, &val->intval); + + case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: + return ip5xxx_battery_get_voltage_max(ip5xxx, &val->intval); + + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + ret = ip5xxx_battery_read_adc(ip5xxx, IP5XXX_BATVADC_DAT0, + IP5XXX_BATVADC_DAT1, &raw); + + val->intval = 2600000 + DIV_ROUND_CLOSEST(raw * 26855, 100); + return 0; + + case POWER_SUPPLY_PROP_VOLTAGE_OCV: + ret = ip5xxx_battery_read_adc(ip5xxx, IP5XXX_BATOCV_DAT0, + IP5XXX_BATOCV_DAT1, &raw); + + val->intval = 2600000 + DIV_ROUND_CLOSEST(raw * 26855, 100); + return 0; + + case POWER_SUPPLY_PROP_CURRENT_NOW: + ret = ip5xxx_battery_read_adc(ip5xxx, IP5XXX_BATIADC_DAT0, + IP5XXX_BATIADC_DAT1, &raw); + + val->intval = DIV_ROUND_CLOSEST(raw * 149197, 200); + return 0; + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: + ret = ip5xxx_read(ip5xxx, IP5XXX_CHG_CTL4A, &rval); + if (ret) + return ret; + + rval &= IP5XXX_CHG_CTL4A_CONST_CUR_SEL; + val->intval = 100000 * rval; + return 0; + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX: + val->intval = 100000 * 0x1f; + return 0; + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: + ret = ip5xxx_battery_get_voltage_max(ip5xxx, &vmax); + if (ret) + return ret; + + ret = ip5xxx_read(ip5xxx, IP5XXX_CHG_CTL2, &rval); + if (ret) + return ret; + + rval &= IP5XXX_CHG_CTL2_CONST_VOLT_SEL; + val->intval = vmax + 14000 * (rval >> 1); + return 0; + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX: + ret = ip5xxx_battery_get_voltage_max(ip5xxx, &vmax); + if (ret) + return ret; + + val->intval = vmax + 14000 * 3; + return 0; + + default: + return -EINVAL; + } +} + +static int ip5xxx_battery_set_voltage_max(struct ip5xxx *ip5xxx, int val) +{ + unsigned int rval; + int ret; + + switch (val) { + case 4200000: + rval = IP5XXX_CHG_CTL2_BAT_TYPE_SEL_4_2V; + break; + case 4300000: + rval = IP5XXX_CHG_CTL2_BAT_TYPE_SEL_4_3V; + break; + case 4350000: + rval = IP5XXX_CHG_CTL2_BAT_TYPE_SEL_4_35V; + break; + default: + return -EINVAL; + } + + ret = ip5xxx_update_bits(ip5xxx, IP5XXX_CHG_CTL2, + IP5XXX_CHG_CTL2_BAT_TYPE_SEL, rval); + if (ret) + return ret; + + ret = ip5xxx_update_bits(ip5xxx, IP5XXX_CHG_CTL4, + IP5XXX_CHG_CTL4_BAT_TYPE_SEL_EN, + IP5XXX_CHG_CTL4_BAT_TYPE_SEL_EN); + if (ret) + return ret; + + return 0; +} + +static int ip5xxx_battery_set_property(struct power_supply *psy, + enum power_supply_property psp, + const union power_supply_propval *val) +{ + struct ip5xxx *ip5xxx = power_supply_get_drvdata(psy); + unsigned int rval; + int ret, vmax; + + ret = ip5xxx_initialize(psy); + if (ret) + return ret; + + switch (psp) { + case POWER_SUPPLY_PROP_STATUS: + switch (val->intval) { + case POWER_SUPPLY_STATUS_CHARGING: + rval = IP5XXX_SYS_CTL0_CHARGER_EN; + break; + case POWER_SUPPLY_STATUS_DISCHARGING: + case POWER_SUPPLY_STATUS_NOT_CHARGING: + rval = 0; + break; + default: + return -EINVAL; + } + return ip5xxx_update_bits(ip5xxx, IP5XXX_SYS_CTL0, + IP5XXX_SYS_CTL0_CHARGER_EN, rval); + + case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: + return ip5xxx_battery_set_voltage_max(ip5xxx, val->intval); + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: + rval = val->intval / 100000; + return ip5xxx_update_bits(ip5xxx, IP5XXX_CHG_CTL4A, + IP5XXX_CHG_CTL4A_CONST_CUR_SEL, rval); + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: + ret = ip5xxx_battery_get_voltage_max(ip5xxx, &vmax); + if (ret) + return ret; + + rval = ((val->intval - vmax) / 14000) << 1; + return ip5xxx_update_bits(ip5xxx, IP5XXX_CHG_CTL2, + IP5XXX_CHG_CTL2_CONST_VOLT_SEL, rval); + + default: + return -EINVAL; + } +} + +static int ip5xxx_battery_property_is_writeable(struct power_supply *psy, + enum power_supply_property psp) +{ + return psp == POWER_SUPPLY_PROP_STATUS || + psp == POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN || + psp == POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT || + psp == POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE; +} + +static const struct power_supply_desc ip5xxx_battery_desc = { + .name = "ip5xxx-battery", + .type = POWER_SUPPLY_TYPE_BATTERY, + .properties = ip5xxx_battery_properties, + .num_properties = ARRAY_SIZE(ip5xxx_battery_properties), + .get_property = ip5xxx_battery_get_property, + .set_property = ip5xxx_battery_set_property, + .property_is_writeable = ip5xxx_battery_property_is_writeable, +}; + +static const enum power_supply_property ip5xxx_boost_properties[] = { + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, +}; + +static int ip5xxx_boost_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct ip5xxx *ip5xxx = power_supply_get_drvdata(psy); + unsigned int rval; + int ret; + + ret = ip5xxx_initialize(psy); + if (ret) + return ret; + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + ret = ip5xxx_read(ip5xxx, IP5XXX_SYS_CTL0, &rval); + if (ret) + return ret; + + val->intval = !!(rval & IP5XXX_SYS_CTL0_BOOST_EN); + return 0; + + case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: + ret = ip5xxx_read(ip5xxx, IP5XXX_CHG_CTL1, &rval); + if (ret) + return ret; + + rval &= IP5XXX_CHG_CTL1_BOOST_UVP_SEL; + val->intval = 4530000 + 100000 * (rval >> 2); + return 0; + + default: + return -EINVAL; + } +} + +static int ip5xxx_boost_set_property(struct power_supply *psy, + enum power_supply_property psp, + const union power_supply_propval *val) +{ + struct ip5xxx *ip5xxx = power_supply_get_drvdata(psy); + unsigned int rval; + int ret; + + ret = ip5xxx_initialize(psy); + if (ret) + return ret; + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + rval = val->intval ? IP5XXX_SYS_CTL0_BOOST_EN : 0; + return ip5xxx_update_bits(ip5xxx, IP5XXX_SYS_CTL0, + IP5XXX_SYS_CTL0_BOOST_EN, rval); + + case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: + rval = ((val->intval - 4530000) / 100000) << 2; + return ip5xxx_update_bits(ip5xxx, IP5XXX_CHG_CTL1, + IP5XXX_CHG_CTL1_BOOST_UVP_SEL, rval); + + default: + return -EINVAL; + } +} + +static int ip5xxx_boost_property_is_writeable(struct power_supply *psy, + enum power_supply_property psp) +{ + return true; +} + +static const struct power_supply_desc ip5xxx_boost_desc = { + .name = "ip5xxx-boost", + .type = POWER_SUPPLY_TYPE_USB, + .properties = ip5xxx_boost_properties, + .num_properties = ARRAY_SIZE(ip5xxx_boost_properties), + .get_property = ip5xxx_boost_get_property, + .set_property = ip5xxx_boost_set_property, + .property_is_writeable = ip5xxx_boost_property_is_writeable, +}; + +static const struct regmap_config ip5xxx_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = IP5XXX_BATOCV_DAT1, +}; + +static int ip5xxx_power_probe(struct i2c_client *client) +{ + struct power_supply_config psy_cfg = {}; + struct device *dev = &client->dev; + struct power_supply *psy; + struct ip5xxx *ip5xxx; + + ip5xxx = devm_kzalloc(dev, sizeof(*ip5xxx), GFP_KERNEL); + if (!ip5xxx) + return -ENOMEM; + + ip5xxx->regmap = devm_regmap_init_i2c(client, &ip5xxx_regmap_config); + if (IS_ERR(ip5xxx->regmap)) + return PTR_ERR(ip5xxx->regmap); + + psy_cfg.of_node = dev->of_node; + psy_cfg.drv_data = ip5xxx; + + psy = devm_power_supply_register(dev, &ip5xxx_battery_desc, &psy_cfg); + if (IS_ERR(psy)) + return PTR_ERR(psy); + + psy = devm_power_supply_register(dev, &ip5xxx_boost_desc, &psy_cfg); + if (IS_ERR(psy)) + return PTR_ERR(psy); + + return 0; +} + +static const struct of_device_id ip5xxx_power_of_match[] = { + { .compatible = "injoinic,ip5108" }, + { .compatible = "injoinic,ip5109" }, + { .compatible = "injoinic,ip5207" }, + { .compatible = "injoinic,ip5209" }, + { } +}; +MODULE_DEVICE_TABLE(of, ip5xxx_power_of_match); + +static struct i2c_driver ip5xxx_power_driver = { + .probe_new = ip5xxx_power_probe, + .driver = { + .name = "ip5xxx-power", + .of_match_table = ip5xxx_power_of_match, + } +}; +module_i2c_driver(ip5xxx_power_driver); + +MODULE_AUTHOR("Samuel Holland <samuel@sholland.org>"); +MODULE_DESCRIPTION("Injoinic IP5xxx power bank IC driver"); +MODULE_LICENSE("GPL"); |