diff options
Diffstat (limited to 'drivers/power/mfd')
| -rw-r--r-- | drivers/power/mfd/Makefile | 1 | ||||
| -rw-r--r-- | drivers/power/mfd/fg_max77693.c | 137 |
2 files changed, 0 insertions, 138 deletions
diff --git a/drivers/power/mfd/Makefile b/drivers/power/mfd/Makefile index a8eb7f81e7..5dfbdbd1b0 100644 --- a/drivers/power/mfd/Makefile +++ b/drivers/power/mfd/Makefile @@ -5,4 +5,3 @@ obj-$(CONFIG_POWER_PMIC_MAX77693) += pmic_max77693.o obj-$(CONFIG_POWER_MUIC_MAX77693) += muic_max77693.o -obj-$(CONFIG_POWER_FG_MAX77693) += fg_max77693.o diff --git a/drivers/power/mfd/fg_max77693.c b/drivers/power/mfd/fg_max77693.c deleted file mode 100644 index 983a6d4a2b..0000000000 --- a/drivers/power/mfd/fg_max77693.c +++ /dev/null @@ -1,137 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright (C) 2013 Samsung Electronics - * Piotr Wilczek <p.wilczek@samsung.com> - */ - -#include <common.h> -#include <log.h> -#include <power/pmic.h> -#include <power/max77693_fg.h> -#include <i2c.h> -#include <power/power_chrg.h> -#include <power/battery.h> -#include <power/fg_battery_cell_params.h> -#include <errno.h> - -static int max77693_get_vcell(u32 *vcell) -{ - u16 value; - u8 ret; - - ret = i2c_read(MAX77693_FUEL_I2C_ADDR, MAX77693_VCELL, 1, - (u8 *)&value, 2); - if (ret) - return ret; - - *vcell = (u32)(value >> 3); - *vcell = *vcell * 625; - - return 0; -} - -static int max77693_get_soc(u32 *soc) -{ - u16 value; - u8 ret; - - ret = i2c_read(MAX77693_FUEL_I2C_ADDR, MAX77693_VFSOC, 1, - (u8 *)&value, 2); - if (ret) - return ret; - - *soc = (u32)(value >> 8); - - return 0; -} - -static int power_update_battery(struct pmic *p, struct pmic *bat) -{ - struct power_battery *pb = bat->pbat; - int ret; - - if (pmic_probe(p)) { - puts("Can't find max77693 fuel gauge\n"); - return -ENODEV; - } - - ret = max77693_get_soc(&pb->bat->state_of_chrg); - if (ret) - return ret; - - max77693_get_vcell(&pb->bat->voltage_uV); - - return 0; -} - -static int power_check_battery(struct pmic *p, struct pmic *bat) -{ - struct power_battery *pb = bat->pbat; - unsigned int val; - int ret = 0; - - if (pmic_probe(p)) { - puts("Can't find max77693 fuel gauge\n"); - return -ENODEV; - } - - ret = pmic_reg_read(p, MAX77693_STATUS, &val); - if (ret) - return ret; - debug("fg status: 0x%x\n", val); - - ret = pmic_reg_read(p, MAX77693_VERSION, &pb->bat->version); - if (ret) - return ret; - - ret = power_update_battery(p, bat); - if (ret) - return ret; - debug("fg ver: 0x%x\n", pb->bat->version); - printf("BAT: state_of_charge(SOC):%d%%\n", - pb->bat->state_of_chrg); - - printf(" voltage: %d.%6.6d [V] (expected to be %d [mAh])\n", - pb->bat->voltage_uV / 1000000, - pb->bat->voltage_uV % 1000000, - pb->bat->capacity); - - if (pb->bat->voltage_uV > 3850000) - pb->bat->state = EXT_SOURCE; - else if (pb->bat->voltage_uV < 3600000 || pb->bat->state_of_chrg < 5) - pb->bat->state = CHARGE; - else - pb->bat->state = NORMAL; - - return 0; -} - -static struct power_fg power_fg_ops = { - .fg_battery_check = power_check_battery, - .fg_battery_update = power_update_battery, -}; - -int power_fg_init(unsigned char bus) -{ - static const char name[] = "MAX77693_FG"; - struct pmic *p = pmic_alloc(); - - if (!p) { - printf("%s: POWER allocation error!\n", __func__); - return -ENOMEM; - } - - debug("Board Fuel Gauge init\n"); - - p->name = name; - p->interface = PMIC_I2C; - p->number_of_regs = FG_NUM_OF_REGS; - p->hw.i2c.addr = MAX77693_FUEL_I2C_ADDR; - p->hw.i2c.tx_num = 2; - p->sensor_byte_order = PMIC_SENSOR_BYTE_ORDER_BIG; - p->bus = bus; - - p->fg = &power_fg_ops; - - return 0; -} |