forked from Minki/linux
max17042_battery: Support regmap to access device's registers
This patch makes max17042 fuelguage driver uses regmap API to access its device's registers. Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
This commit is contained in:
Jonghwa Lee
Anton Vorontsov
parent
3d23c7f457
commit
39e7213edc
@ -33,6 +33,7 @@
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#include <linux/power_supply.h>
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#include <linux/power/max17042_battery.h>
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#include <linux/of.h>
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#include <linux/regmap.h>
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/* Status register bits */
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#define STATUS_POR_BIT (1 << 1)
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@ -67,6 +68,7 @@
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struct max17042_chip {
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struct i2c_client *client;
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struct regmap *regmap;
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struct power_supply battery;
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enum max170xx_chip_type chip_type;
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struct max17042_platform_data *pdata;
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@ -74,35 +76,6 @@ struct max17042_chip {
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int init_complete;
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};
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static int max17042_write_reg(struct i2c_client *client, u8 reg, u16 value)
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{
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int ret = i2c_smbus_write_word_data(client, reg, value);
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if (ret < 0)
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dev_err(&client->dev, "%s: err %d\n", __func__, ret);
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return ret;
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}
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static int max17042_read_reg(struct i2c_client *client, u8 reg)
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{
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int ret = i2c_smbus_read_word_data(client, reg);
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if (ret < 0)
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dev_err(&client->dev, "%s: err %d\n", __func__, ret);
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return ret;
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}
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static void max17042_set_reg(struct i2c_client *client,
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struct max17042_reg_data *data, int size)
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{
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int i;
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for (i = 0; i < size; i++)
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max17042_write_reg(client, data[i].addr, data[i].data);
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}
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static enum power_supply_property max17042_battery_props[] = {
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POWER_SUPPLY_PROP_PRESENT,
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POWER_SUPPLY_PROP_CYCLE_COUNT,
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@ -125,96 +98,98 @@ static int max17042_get_property(struct power_supply *psy,
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{
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struct max17042_chip *chip = container_of(psy,
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struct max17042_chip, battery);
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struct regmap *map = chip->regmap;
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int ret;
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u32 data;
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if (!chip->init_complete)
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return -EAGAIN;
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switch (psp) {
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case POWER_SUPPLY_PROP_PRESENT:
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ret = max17042_read_reg(chip->client, MAX17042_STATUS);
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ret = regmap_read(map, MAX17042_STATUS, &data);
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if (ret < 0)
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return ret;
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if (ret & MAX17042_STATUS_BattAbsent)
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if (data & MAX17042_STATUS_BattAbsent)
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val->intval = 0;
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else
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val->intval = 1;
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break;
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case POWER_SUPPLY_PROP_CYCLE_COUNT:
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ret = max17042_read_reg(chip->client, MAX17042_Cycles);
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ret = regmap_read(map, MAX17042_Cycles, &data);
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if (ret < 0)
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return ret;
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val->intval = ret;
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val->intval = data;
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break;
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case POWER_SUPPLY_PROP_VOLTAGE_MAX:
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ret = max17042_read_reg(chip->client, MAX17042_MinMaxVolt);
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ret = regmap_read(map, MAX17042_MinMaxVolt, &data);
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if (ret < 0)
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return ret;
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val->intval = ret >> 8;
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val->intval = data >> 8;
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val->intval *= 20000; /* Units of LSB = 20mV */
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break;
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case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
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if (chip->chip_type == MAX17042)
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ret = max17042_read_reg(chip->client, MAX17042_V_empty);
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ret = regmap_read(map, MAX17042_V_empty, &data);
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else
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ret = max17042_read_reg(chip->client, MAX17047_V_empty);
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ret = regmap_read(map, MAX17047_V_empty, &data);
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if (ret < 0)
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return ret;
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val->intval = ret >> 7;
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val->intval = data >> 7;
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val->intval *= 10000; /* Units of LSB = 10mV */
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break;
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case POWER_SUPPLY_PROP_VOLTAGE_NOW:
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ret = max17042_read_reg(chip->client, MAX17042_VCELL);
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ret = regmap_read(map, MAX17042_VCELL, &data);
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if (ret < 0)
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return ret;
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val->intval = ret * 625 / 8;
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val->intval = data * 625 / 8;
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break;
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case POWER_SUPPLY_PROP_VOLTAGE_AVG:
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ret = max17042_read_reg(chip->client, MAX17042_AvgVCELL);
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ret = regmap_read(map, MAX17042_AvgVCELL, &data);
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if (ret < 0)
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return ret;
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val->intval = ret * 625 / 8;
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val->intval = data * 625 / 8;
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break;
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case POWER_SUPPLY_PROP_VOLTAGE_OCV:
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ret = max17042_read_reg(chip->client, MAX17042_OCVInternal);
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ret = regmap_read(map, MAX17042_OCVInternal, &data);
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if (ret < 0)
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return ret;
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val->intval = ret * 625 / 8;
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val->intval = data * 625 / 8;
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break;
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case POWER_SUPPLY_PROP_CAPACITY:
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ret = max17042_read_reg(chip->client, MAX17042_RepSOC);
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ret = regmap_read(map, MAX17042_RepSOC, &data);
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if (ret < 0)
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return ret;
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val->intval = ret >> 8;
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val->intval = data >> 8;
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break;
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case POWER_SUPPLY_PROP_CHARGE_FULL:
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ret = max17042_read_reg(chip->client, MAX17042_FullCAP);
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ret = regmap_read(map, MAX17042_FullCAP, &data);
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if (ret < 0)
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return ret;
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val->intval = ret * 1000 / 2;
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val->intval = data * 1000 / 2;
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break;
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case POWER_SUPPLY_PROP_CHARGE_COUNTER:
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ret = max17042_read_reg(chip->client, MAX17042_QH);
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ret = regmap_read(map, MAX17042_QH, &data);
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if (ret < 0)
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return ret;
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val->intval = ret * 1000 / 2;
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val->intval = data * 1000 / 2;
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break;
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case POWER_SUPPLY_PROP_TEMP:
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ret = max17042_read_reg(chip->client, MAX17042_TEMP);
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ret = regmap_read(map, MAX17042_TEMP, &data);
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if (ret < 0)
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return ret;
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val->intval = ret;
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val->intval = data;
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/* The value is signed. */
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if (val->intval & 0x8000) {
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val->intval = (0x7fff & ~val->intval) + 1;
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@ -226,11 +201,11 @@ static int max17042_get_property(struct power_supply *psy,
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break;
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case POWER_SUPPLY_PROP_CURRENT_NOW:
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if (chip->pdata->enable_current_sense) {
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ret = max17042_read_reg(chip->client, MAX17042_Current);
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ret = regmap_read(map, MAX17042_Current, &data);
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if (ret < 0)
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return ret;
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val->intval = ret;
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val->intval = data;
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if (val->intval & 0x8000) {
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/* Negative */
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val->intval = ~val->intval & 0x7fff;
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@ -244,12 +219,11 @@ static int max17042_get_property(struct power_supply *psy,
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break;
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case POWER_SUPPLY_PROP_CURRENT_AVG:
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if (chip->pdata->enable_current_sense) {
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ret = max17042_read_reg(chip->client,
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MAX17042_AvgCurrent);
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ret = regmap_read(map, MAX17042_AvgCurrent, &data);
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if (ret < 0)
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return ret;
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val->intval = ret;
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val->intval = data;
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if (val->intval & 0x8000) {
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/* Negative */
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val->intval = ~val->intval & 0x7fff;
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@ -267,16 +241,15 @@ static int max17042_get_property(struct power_supply *psy,
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return 0;
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}
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static int max17042_write_verify_reg(struct i2c_client *client,
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u8 reg, u16 value)
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static int max17042_write_verify_reg(struct regmap *map, u8 reg, u32 value)
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{
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int retries = 8;
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int ret;
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u16 read_value;
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u32 read_value;
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do {
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ret = i2c_smbus_write_word_data(client, reg, value);
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read_value = max17042_read_reg(client, reg);
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ret = regmap_write(map, reg, value);
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regmap_read(map, reg, &read_value);
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if (read_value != value) {
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ret = -EIO;
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retries--;
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@ -284,50 +257,51 @@ static int max17042_write_verify_reg(struct i2c_client *client,
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} while (retries && read_value != value);
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if (ret < 0)
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dev_err(&client->dev, "%s: err %d\n", __func__, ret);
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pr_err("%s: err %d\n", __func__, ret);
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return ret;
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}
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static inline void max17042_override_por(
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struct i2c_client *client, u8 reg, u16 value)
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static inline void max17042_override_por(struct regmap *map,
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u8 reg, u16 value)
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{
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if (value)
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max17042_write_reg(client, reg, value);
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regmap_write(map, reg, value);
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}
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static inline void max10742_unlock_model(struct max17042_chip *chip)
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{
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struct i2c_client *client = chip->client;
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max17042_write_reg(client, MAX17042_MLOCKReg1, MODEL_UNLOCK1);
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max17042_write_reg(client, MAX17042_MLOCKReg2, MODEL_UNLOCK2);
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struct regmap *map = chip->regmap;
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regmap_write(map, MAX17042_MLOCKReg1, MODEL_UNLOCK1);
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regmap_write(map, MAX17042_MLOCKReg2, MODEL_UNLOCK2);
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}
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static inline void max10742_lock_model(struct max17042_chip *chip)
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{
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struct i2c_client *client = chip->client;
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max17042_write_reg(client, MAX17042_MLOCKReg1, MODEL_LOCK1);
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max17042_write_reg(client, MAX17042_MLOCKReg2, MODEL_LOCK2);
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struct regmap *map = chip->regmap;
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regmap_write(map, MAX17042_MLOCKReg1, MODEL_LOCK1);
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regmap_write(map, MAX17042_MLOCKReg2, MODEL_LOCK2);
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}
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static inline void max17042_write_model_data(struct max17042_chip *chip,
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u8 addr, int size)
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{
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struct i2c_client *client = chip->client;
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struct regmap *map = chip->regmap;
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int i;
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for (i = 0; i < size; i++)
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max17042_write_reg(client, addr + i,
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chip->pdata->config_data->cell_char_tbl[i]);
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regmap_write(map, addr + i,
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chip->pdata->config_data->cell_char_tbl[i]);
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}
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static inline void max17042_read_model_data(struct max17042_chip *chip,
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u8 addr, u16 *data, int size)
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u8 addr, u32 *data, int size)
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{
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struct i2c_client *client = chip->client;
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struct regmap *map = chip->regmap;
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int i;
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for (i = 0; i < size; i++)
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data[i] = max17042_read_reg(client, addr + i);
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regmap_read(map, addr + i, &data[i]);
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}
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static inline int max17042_model_data_compare(struct max17042_chip *chip,
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@ -350,7 +324,7 @@ static int max17042_init_model(struct max17042_chip *chip)
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{
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int ret;
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int table_size = ARRAY_SIZE(chip->pdata->config_data->cell_char_tbl);
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u16 *temp_data;
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u32 *temp_data;
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temp_data = kcalloc(table_size, sizeof(*temp_data), GFP_KERNEL);
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if (!temp_data)
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@ -365,7 +339,7 @@ static int max17042_init_model(struct max17042_chip *chip)
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ret = max17042_model_data_compare(
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chip,
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chip->pdata->config_data->cell_char_tbl,
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temp_data,
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(u16 *)temp_data,
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table_size);
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max10742_lock_model(chip);
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@ -378,7 +352,7 @@ static int max17042_verify_model_lock(struct max17042_chip *chip)
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{
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int i;
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int table_size = ARRAY_SIZE(chip->pdata->config_data->cell_char_tbl);
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u16 *temp_data;
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u32 *temp_data;
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int ret = 0;
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temp_data = kcalloc(table_size, sizeof(*temp_data), GFP_KERNEL);
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@ -398,40 +372,38 @@ static int max17042_verify_model_lock(struct max17042_chip *chip)
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static void max17042_write_config_regs(struct max17042_chip *chip)
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{
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struct max17042_config_data *config = chip->pdata->config_data;
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struct regmap *map = chip->regmap;
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max17042_write_reg(chip->client, MAX17042_CONFIG, config->config);
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max17042_write_reg(chip->client, MAX17042_LearnCFG, config->learn_cfg);
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max17042_write_reg(chip->client, MAX17042_FilterCFG,
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regmap_write(map, MAX17042_CONFIG, config->config);
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regmap_write(map, MAX17042_LearnCFG, config->learn_cfg);
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regmap_write(map, MAX17042_FilterCFG,
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config->filter_cfg);
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max17042_write_reg(chip->client, MAX17042_RelaxCFG, config->relax_cfg);
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regmap_write(map, MAX17042_RelaxCFG, config->relax_cfg);
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if (chip->chip_type == MAX17047)
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max17042_write_reg(chip->client, MAX17047_FullSOCThr,
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regmap_write(map, MAX17047_FullSOCThr,
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config->full_soc_thresh);
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}
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static void max17042_write_custom_regs(struct max17042_chip *chip)
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{
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struct max17042_config_data *config = chip->pdata->config_data;
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struct regmap *map = chip->regmap;
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max17042_write_verify_reg(chip->client, MAX17042_RCOMP0,
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config->rcomp0);
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max17042_write_verify_reg(chip->client, MAX17042_TempCo,
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config->tcompc0);
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max17042_write_verify_reg(chip->client, MAX17042_ICHGTerm,
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config->ichgt_term);
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max17042_write_verify_reg(map, MAX17042_RCOMP0, config->rcomp0);
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max17042_write_verify_reg(map, MAX17042_TempCo, config->tcompc0);
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max17042_write_verify_reg(map, MAX17042_ICHGTerm, config->ichgt_term);
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if (chip->chip_type == MAX17042) {
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max17042_write_reg(chip->client, MAX17042_EmptyTempCo,
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config->empty_tempco);
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max17042_write_verify_reg(chip->client, MAX17042_K_empty0,
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regmap_write(map, MAX17042_EmptyTempCo, config->empty_tempco);
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max17042_write_verify_reg(map, MAX17042_K_empty0,
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config->kempty0);
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} else {
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max17042_write_verify_reg(chip->client, MAX17047_QRTbl00,
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max17042_write_verify_reg(map, MAX17047_QRTbl00,
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config->qrtbl00);
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max17042_write_verify_reg(chip->client, MAX17047_QRTbl10,
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max17042_write_verify_reg(map, MAX17047_QRTbl10,
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config->qrtbl10);
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max17042_write_verify_reg(chip->client, MAX17047_QRTbl20,
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max17042_write_verify_reg(map, MAX17047_QRTbl20,
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config->qrtbl20);
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max17042_write_verify_reg(chip->client, MAX17047_QRTbl30,
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max17042_write_verify_reg(map, MAX17047_QRTbl30,
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config->qrtbl30);
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}
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}
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@ -439,58 +411,60 @@ static void max17042_write_custom_regs(struct max17042_chip *chip)
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static void max17042_update_capacity_regs(struct max17042_chip *chip)
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{
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struct max17042_config_data *config = chip->pdata->config_data;
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struct regmap *map = chip->regmap;
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max17042_write_verify_reg(chip->client, MAX17042_FullCAP,
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max17042_write_verify_reg(map, MAX17042_FullCAP,
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config->fullcap);
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max17042_write_reg(chip->client, MAX17042_DesignCap,
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config->design_cap);
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max17042_write_verify_reg(chip->client, MAX17042_FullCAPNom,
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regmap_write(map, MAX17042_DesignCap, config->design_cap);
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max17042_write_verify_reg(map, MAX17042_FullCAPNom,
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config->fullcapnom);
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}
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static void max17042_reset_vfsoc0_reg(struct max17042_chip *chip)
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{
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u16 vfSoc;
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unsigned int vfSoc;
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struct regmap *map = chip->regmap;
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vfSoc = max17042_read_reg(chip->client, MAX17042_VFSOC);
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max17042_write_reg(chip->client, MAX17042_VFSOC0Enable, VFSOC0_UNLOCK);
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max17042_write_verify_reg(chip->client, MAX17042_VFSOC0, vfSoc);
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max17042_write_reg(chip->client, MAX17042_VFSOC0Enable, VFSOC0_LOCK);
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regmap_read(map, MAX17042_VFSOC, &vfSoc);
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regmap_write(map, MAX17042_VFSOC0Enable, VFSOC0_UNLOCK);
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max17042_write_verify_reg(map, MAX17042_VFSOC0, vfSoc);
|
||||
regmap_write(map, MAX17042_VFSOC0Enable, VFSOC0_LOCK);
|
||||
}
|
||||
|
||||
static void max17042_load_new_capacity_params(struct max17042_chip *chip)
|
||||
{
|
||||
u16 full_cap0, rep_cap, dq_acc, vfSoc;
|
||||
u32 full_cap0, rep_cap, dq_acc, vfSoc;
|
||||
u32 rem_cap;
|
||||
|
||||
struct max17042_config_data *config = chip->pdata->config_data;
|
||||
struct regmap *map = chip->regmap;
|
||||
|
||||
full_cap0 = max17042_read_reg(chip->client, MAX17042_FullCAP0);
|
||||
vfSoc = max17042_read_reg(chip->client, MAX17042_VFSOC);
|
||||
regmap_read(map, MAX17042_FullCAP0, &full_cap0);
|
||||
regmap_read(map, MAX17042_VFSOC, &vfSoc);
|
||||
|
||||
/* fg_vfSoc needs to shifted by 8 bits to get the
|
||||
* perc in 1% accuracy, to get the right rem_cap multiply
|
||||
* full_cap0, fg_vfSoc and devide by 100
|
||||
*/
|
||||
rem_cap = ((vfSoc >> 8) * full_cap0) / 100;
|
||||
max17042_write_verify_reg(chip->client, MAX17042_RemCap, (u16)rem_cap);
|
||||
max17042_write_verify_reg(map, MAX17042_RemCap, rem_cap);
|
||||
|
||||
rep_cap = (u16)rem_cap;
|
||||
max17042_write_verify_reg(chip->client, MAX17042_RepCap, rep_cap);
|
||||
rep_cap = rem_cap;
|
||||
max17042_write_verify_reg(map, MAX17042_RepCap, rep_cap);
|
||||
|
||||
/* Write dQ_acc to 200% of Capacity and dP_acc to 200% */
|
||||
dq_acc = config->fullcap / dQ_ACC_DIV;
|
||||
max17042_write_verify_reg(chip->client, MAX17042_dQacc, dq_acc);
|
||||
max17042_write_verify_reg(chip->client, MAX17042_dPacc, dP_ACC_200);
|
||||
max17042_write_verify_reg(map, MAX17042_dQacc, dq_acc);
|
||||
max17042_write_verify_reg(map, MAX17042_dPacc, dP_ACC_200);
|
||||
|
||||
max17042_write_verify_reg(chip->client, MAX17042_FullCAP,
|
||||
max17042_write_verify_reg(map, MAX17042_FullCAP,
|
||||
config->fullcap);
|
||||
max17042_write_reg(chip->client, MAX17042_DesignCap,
|
||||
regmap_write(map, MAX17042_DesignCap,
|
||||
config->design_cap);
|
||||
max17042_write_verify_reg(chip->client, MAX17042_FullCAPNom,
|
||||
max17042_write_verify_reg(map, MAX17042_FullCAPNom,
|
||||
config->fullcapnom);
|
||||
/* Update SOC register with new SOC */
|
||||
max17042_write_reg(chip->client, MAX17042_RepSOC, vfSoc);
|
||||
regmap_write(map, MAX17042_RepSOC, vfSoc);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -500,59 +474,60 @@ static void max17042_load_new_capacity_params(struct max17042_chip *chip)
|
||||
*/
|
||||
static inline void max17042_override_por_values(struct max17042_chip *chip)
|
||||
{
|
||||
struct i2c_client *client = chip->client;
|
||||
struct regmap *map = chip->regmap;
|
||||
struct max17042_config_data *config = chip->pdata->config_data;
|
||||
|
||||
max17042_override_por(client, MAX17042_TGAIN, config->tgain);
|
||||
max17042_override_por(client, MAx17042_TOFF, config->toff);
|
||||
max17042_override_por(client, MAX17042_CGAIN, config->cgain);
|
||||
max17042_override_por(client, MAX17042_COFF, config->coff);
|
||||
max17042_override_por(map, MAX17042_TGAIN, config->tgain);
|
||||
max17042_override_por(map, MAx17042_TOFF, config->toff);
|
||||
max17042_override_por(map, MAX17042_CGAIN, config->cgain);
|
||||
max17042_override_por(map, MAX17042_COFF, config->coff);
|
||||
|
||||
max17042_override_por(client, MAX17042_VALRT_Th, config->valrt_thresh);
|
||||
max17042_override_por(client, MAX17042_TALRT_Th, config->talrt_thresh);
|
||||
max17042_override_por(client, MAX17042_SALRT_Th,
|
||||
config->soc_alrt_thresh);
|
||||
max17042_override_por(client, MAX17042_CONFIG, config->config);
|
||||
max17042_override_por(client, MAX17042_SHDNTIMER, config->shdntimer);
|
||||
max17042_override_por(map, MAX17042_VALRT_Th, config->valrt_thresh);
|
||||
max17042_override_por(map, MAX17042_TALRT_Th, config->talrt_thresh);
|
||||
max17042_override_por(map, MAX17042_SALRT_Th,
|
||||
config->soc_alrt_thresh);
|
||||
max17042_override_por(map, MAX17042_CONFIG, config->config);
|
||||
max17042_override_por(map, MAX17042_SHDNTIMER, config->shdntimer);
|
||||
|
||||
max17042_override_por(client, MAX17042_DesignCap, config->design_cap);
|
||||
max17042_override_por(client, MAX17042_ICHGTerm, config->ichgt_term);
|
||||
max17042_override_por(map, MAX17042_DesignCap, config->design_cap);
|
||||
max17042_override_por(map, MAX17042_ICHGTerm, config->ichgt_term);
|
||||
|
||||
max17042_override_por(client, MAX17042_AtRate, config->at_rate);
|
||||
max17042_override_por(client, MAX17042_LearnCFG, config->learn_cfg);
|
||||
max17042_override_por(client, MAX17042_FilterCFG, config->filter_cfg);
|
||||
max17042_override_por(client, MAX17042_RelaxCFG, config->relax_cfg);
|
||||
max17042_override_por(client, MAX17042_MiscCFG, config->misc_cfg);
|
||||
max17042_override_por(client, MAX17042_MaskSOC, config->masksoc);
|
||||
max17042_override_por(map, MAX17042_AtRate, config->at_rate);
|
||||
max17042_override_por(map, MAX17042_LearnCFG, config->learn_cfg);
|
||||
max17042_override_por(map, MAX17042_FilterCFG, config->filter_cfg);
|
||||
max17042_override_por(map, MAX17042_RelaxCFG, config->relax_cfg);
|
||||
max17042_override_por(map, MAX17042_MiscCFG, config->misc_cfg);
|
||||
max17042_override_por(map, MAX17042_MaskSOC, config->masksoc);
|
||||
|
||||
max17042_override_por(client, MAX17042_FullCAP, config->fullcap);
|
||||
max17042_override_por(client, MAX17042_FullCAPNom, config->fullcapnom);
|
||||
max17042_override_por(map, MAX17042_FullCAP, config->fullcap);
|
||||
max17042_override_por(map, MAX17042_FullCAPNom, config->fullcapnom);
|
||||
if (chip->chip_type == MAX17042)
|
||||
max17042_override_por(client, MAX17042_SOC_empty,
|
||||
max17042_override_por(map, MAX17042_SOC_empty,
|
||||
config->socempty);
|
||||
max17042_override_por(client, MAX17042_LAvg_empty, config->lavg_empty);
|
||||
max17042_override_por(client, MAX17042_dQacc, config->dqacc);
|
||||
max17042_override_por(client, MAX17042_dPacc, config->dpacc);
|
||||
max17042_override_por(map, MAX17042_LAvg_empty, config->lavg_empty);
|
||||
max17042_override_por(map, MAX17042_dQacc, config->dqacc);
|
||||
max17042_override_por(map, MAX17042_dPacc, config->dpacc);
|
||||
|
||||
if (chip->chip_type == MAX17042)
|
||||
max17042_override_por(client, MAX17042_V_empty, config->vempty);
|
||||
max17042_override_por(map, MAX17042_V_empty, config->vempty);
|
||||
else
|
||||
max17042_override_por(client, MAX17047_V_empty, config->vempty);
|
||||
max17042_override_por(client, MAX17042_TempNom, config->temp_nom);
|
||||
max17042_override_por(client, MAX17042_TempLim, config->temp_lim);
|
||||
max17042_override_por(client, MAX17042_FCTC, config->fctc);
|
||||
max17042_override_por(client, MAX17042_RCOMP0, config->rcomp0);
|
||||
max17042_override_por(client, MAX17042_TempCo, config->tcompc0);
|
||||
max17042_override_por(map, MAX17047_V_empty, config->vempty);
|
||||
max17042_override_por(map, MAX17042_TempNom, config->temp_nom);
|
||||
max17042_override_por(map, MAX17042_TempLim, config->temp_lim);
|
||||
max17042_override_por(map, MAX17042_FCTC, config->fctc);
|
||||
max17042_override_por(map, MAX17042_RCOMP0, config->rcomp0);
|
||||
max17042_override_por(map, MAX17042_TempCo, config->tcompc0);
|
||||
if (chip->chip_type) {
|
||||
max17042_override_por(client, MAX17042_EmptyTempCo,
|
||||
config->empty_tempco);
|
||||
max17042_override_por(client, MAX17042_K_empty0,
|
||||
config->kempty0);
|
||||
max17042_override_por(map, MAX17042_EmptyTempCo,
|
||||
config->empty_tempco);
|
||||
max17042_override_por(map, MAX17042_K_empty0,
|
||||
config->kempty0);
|
||||
}
|
||||
}
|
||||
|
||||
static int max17042_init_chip(struct max17042_chip *chip)
|
||||
{
|
||||
struct regmap *map = chip->regmap;
|
||||
int ret;
|
||||
int val;
|
||||
|
||||
@ -597,31 +572,32 @@ static int max17042_init_chip(struct max17042_chip *chip)
|
||||
max17042_load_new_capacity_params(chip);
|
||||
|
||||
/* Init complete, Clear the POR bit */
|
||||
val = max17042_read_reg(chip->client, MAX17042_STATUS);
|
||||
max17042_write_reg(chip->client, MAX17042_STATUS,
|
||||
val & (~STATUS_POR_BIT));
|
||||
regmap_read(map, MAX17042_STATUS, &val);
|
||||
regmap_write(map, MAX17042_STATUS, val & (~STATUS_POR_BIT));
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void max17042_set_soc_threshold(struct max17042_chip *chip, u16 off)
|
||||
{
|
||||
u16 soc, soc_tr;
|
||||
struct regmap *map = chip->regmap;
|
||||
u32 soc, soc_tr;
|
||||
|
||||
/* program interrupt thesholds such that we should
|
||||
* get interrupt for every 'off' perc change in the soc
|
||||
*/
|
||||
soc = max17042_read_reg(chip->client, MAX17042_RepSOC) >> 8;
|
||||
regmap_read(map, MAX17042_RepSOC, &soc);
|
||||
soc >>= 8;
|
||||
soc_tr = (soc + off) << 8;
|
||||
soc_tr |= (soc - off);
|
||||
max17042_write_reg(chip->client, MAX17042_SALRT_Th, soc_tr);
|
||||
regmap_write(map, MAX17042_SALRT_Th, soc_tr);
|
||||
}
|
||||
|
||||
static irqreturn_t max17042_thread_handler(int id, void *dev)
|
||||
{
|
||||
struct max17042_chip *chip = dev;
|
||||
u16 val;
|
||||
u32 val;
|
||||
|
||||
val = max17042_read_reg(chip->client, MAX17042_STATUS);
|
||||
regmap_read(chip->regmap, MAX17042_STATUS, &val);
|
||||
if ((val & STATUS_INTR_SOCMIN_BIT) ||
|
||||
(val & STATUS_INTR_SOCMAX_BIT)) {
|
||||
dev_info(&chip->client->dev, "SOC threshold INTR\n");
|
||||
@ -682,13 +658,20 @@ max17042_get_pdata(struct device *dev)
|
||||
}
|
||||
#endif
|
||||
|
||||
static struct regmap_config max17042_regmap_config = {
|
||||
.reg_bits = 8,
|
||||
.val_bits = 16,
|
||||
.val_format_endian = REGMAP_ENDIAN_NATIVE,
|
||||
};
|
||||
|
||||
static int max17042_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
|
||||
struct max17042_chip *chip;
|
||||
int ret;
|
||||
int reg;
|
||||
int i;
|
||||
u32 val;
|
||||
|
||||
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA))
|
||||
return -EIO;
|
||||
@ -698,6 +681,12 @@ static int max17042_probe(struct i2c_client *client,
|
||||
return -ENOMEM;
|
||||
|
||||
chip->client = client;
|
||||
chip->regmap = devm_regmap_init_i2c(client, &max17042_regmap_config);
|
||||
if (IS_ERR(chip->regmap)) {
|
||||
dev_err(&client->dev, "Failed to initialize regmap\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
chip->pdata = max17042_get_pdata(&client->dev);
|
||||
if (!chip->pdata) {
|
||||
dev_err(&client->dev, "no platform data provided\n");
|
||||
@ -706,15 +695,15 @@ static int max17042_probe(struct i2c_client *client,
|
||||
|
||||
i2c_set_clientdata(client, chip);
|
||||
|
||||
ret = max17042_read_reg(chip->client, MAX17042_DevName);
|
||||
if (ret == MAX17042_IC_VERSION) {
|
||||
regmap_read(chip->regmap, MAX17042_DevName, &val);
|
||||
if (val == MAX17042_IC_VERSION) {
|
||||
dev_dbg(&client->dev, "chip type max17042 detected\n");
|
||||
chip->chip_type = MAX17042;
|
||||
} else if (ret == MAX17047_IC_VERSION) {
|
||||
} else if (val == MAX17047_IC_VERSION) {
|
||||
dev_dbg(&client->dev, "chip type max17047/50 detected\n");
|
||||
chip->chip_type = MAX17047;
|
||||
} else {
|
||||
dev_err(&client->dev, "device version mismatch: %x\n", ret);
|
||||
dev_err(&client->dev, "device version mismatch: %x\n", val);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
@ -733,13 +722,15 @@ static int max17042_probe(struct i2c_client *client,
|
||||
chip->pdata->r_sns = MAX17042_DEFAULT_SNS_RESISTOR;
|
||||
|
||||
if (chip->pdata->init_data)
|
||||
max17042_set_reg(client, chip->pdata->init_data,
|
||||
chip->pdata->num_init_data);
|
||||
for (i = 0; i < chip->pdata->num_init_data; i++)
|
||||
regmap_write(chip->regmap,
|
||||
chip->pdata->init_data[i].addr,
|
||||
chip->pdata->init_data[i].data);
|
||||
|
||||
if (!chip->pdata->enable_current_sense) {
|
||||
max17042_write_reg(client, MAX17042_CGAIN, 0x0000);
|
||||
max17042_write_reg(client, MAX17042_MiscCFG, 0x0003);
|
||||
max17042_write_reg(client, MAX17042_LearnCFG, 0x0007);
|
||||
regmap_write(chip->regmap, MAX17042_CGAIN, 0x0000);
|
||||
regmap_write(chip->regmap, MAX17042_MiscCFG, 0x0003);
|
||||
regmap_write(chip->regmap, MAX17042_LearnCFG, 0x0007);
|
||||
}
|
||||
|
||||
ret = power_supply_register(&client->dev, &chip->battery);
|
||||
@ -754,9 +745,9 @@ static int max17042_probe(struct i2c_client *client,
|
||||
IRQF_TRIGGER_FALLING,
|
||||
chip->battery.name, chip);
|
||||
if (!ret) {
|
||||
reg = max17042_read_reg(client, MAX17042_CONFIG);
|
||||
reg |= CONFIG_ALRT_BIT_ENBL;
|
||||
max17042_write_reg(client, MAX17042_CONFIG, reg);
|
||||
regmap_read(chip->regmap, MAX17042_CONFIG, &val);
|
||||
val |= CONFIG_ALRT_BIT_ENBL;
|
||||
regmap_write(chip->regmap, MAX17042_CONFIG, val);
|
||||
max17042_set_soc_threshold(chip, 1);
|
||||
} else {
|
||||
client->irq = 0;
|
||||
@ -765,8 +756,8 @@ static int max17042_probe(struct i2c_client *client,
|
||||
}
|
||||
}
|
||||
|
||||
reg = max17042_read_reg(chip->client, MAX17042_STATUS);
|
||||
if (reg & STATUS_POR_BIT) {
|
||||
regmap_read(chip->regmap, MAX17042_STATUS, &val);
|
||||
if (val & STATUS_POR_BIT) {
|
||||
INIT_WORK(&chip->work, max17042_init_worker);
|
||||
schedule_work(&chip->work);
|
||||
} else {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user