diff options
Diffstat (limited to 'drivers/power/supply/qcom_battmgr.c')
| -rw-r--r-- | drivers/power/supply/qcom_battmgr.c | 1738 |
1 files changed, 1738 insertions, 0 deletions
diff --git a/drivers/power/supply/qcom_battmgr.c b/drivers/power/supply/qcom_battmgr.c new file mode 100644 index 000000000000..c8028606bba0 --- /dev/null +++ b/drivers/power/supply/qcom_battmgr.c @@ -0,0 +1,1738 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2019-2020, The Linux Foundation. All rights reserved. + * Copyright (c) 2022, Linaro Ltd + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. + */ +#include <linux/auxiliary_bus.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/nvmem-consumer.h> +#include <linux/of_device.h> +#include <linux/power_supply.h> +#include <linux/property.h> +#include <linux/soc/qcom/pdr.h> +#include <linux/soc/qcom/pmic_glink.h> +#include <linux/math.h> +#include <linux/units.h> + +#define BATTMGR_CHEMISTRY_LEN 4 +#define BATTMGR_STRING_LEN 128 + +enum qcom_battmgr_variant { + QCOM_BATTMGR_SC8280XP, + QCOM_BATTMGR_SM8350, + QCOM_BATTMGR_SM8550, + QCOM_BATTMGR_X1E80100, +}; + +#define BATTMGR_BAT_STATUS 0x1 + +#define BATTMGR_REQUEST_NOTIFICATION 0x4 + +#define BATTMGR_NOTIFICATION 0x7 +#define NOTIF_BAT_PROPERTY 0x30 +#define NOTIF_USB_PROPERTY 0x32 +#define NOTIF_WLS_PROPERTY 0x34 +#define NOTIF_BAT_STATUS 0x80 +#define NOTIF_BAT_INFO 0x81 +#define NOTIF_BAT_CHARGING_STATE 0x83 + +#define BATTMGR_BAT_INFO 0x9 + +#define BATTMGR_BAT_DISCHARGE_TIME 0xc + +#define BATTMGR_BAT_CHARGE_TIME 0xd + +#define BATTMGR_BAT_PROPERTY_GET 0x30 +#define BATTMGR_BAT_PROPERTY_SET 0x31 +#define BATT_STATUS 0 +#define BATT_HEALTH 1 +#define BATT_PRESENT 2 +#define BATT_CHG_TYPE 3 +#define BATT_CAPACITY 4 +#define BATT_SOH 5 +#define BATT_VOLT_OCV 6 +#define BATT_VOLT_NOW 7 +#define BATT_VOLT_MAX 8 +#define BATT_CURR_NOW 9 +#define BATT_CHG_CTRL_LIM 10 +#define BATT_CHG_CTRL_LIM_MAX 11 +#define BATT_TEMP 12 +#define BATT_TECHNOLOGY 13 +#define BATT_CHG_COUNTER 14 +#define BATT_CYCLE_COUNT 15 +#define BATT_CHG_FULL_DESIGN 16 +#define BATT_CHG_FULL 17 +#define BATT_MODEL_NAME 18 +#define BATT_TTF_AVG 19 +#define BATT_TTE_AVG 20 +#define BATT_RESISTANCE 21 +#define BATT_POWER_NOW 22 +#define BATT_POWER_AVG 23 +#define BATT_CHG_CTRL_EN 24 +#define BATT_CHG_CTRL_START_THR 25 +#define BATT_CHG_CTRL_END_THR 26 + +#define BATTMGR_USB_PROPERTY_GET 0x32 +#define BATTMGR_USB_PROPERTY_SET 0x33 +#define USB_ONLINE 0 +#define USB_VOLT_NOW 1 +#define USB_VOLT_MAX 2 +#define USB_CURR_NOW 3 +#define USB_CURR_MAX 4 +#define USB_INPUT_CURR_LIMIT 5 +#define USB_TYPE 6 +#define USB_ADAP_TYPE 7 +#define USB_MOISTURE_DET_EN 8 +#define USB_MOISTURE_DET_STS 9 + +#define BATTMGR_WLS_PROPERTY_GET 0x34 +#define BATTMGR_WLS_PROPERTY_SET 0x35 +#define WLS_ONLINE 0 +#define WLS_VOLT_NOW 1 +#define WLS_VOLT_MAX 2 +#define WLS_CURR_NOW 3 +#define WLS_CURR_MAX 4 +#define WLS_TYPE 5 +#define WLS_BOOST_EN 6 + +#define BATTMGR_CHG_CTRL_LIMIT_EN 0x48 +#define CHARGE_CTRL_START_THR_MIN 50 +#define CHARGE_CTRL_START_THR_MAX 95 +#define CHARGE_CTRL_END_THR_MIN 55 +#define CHARGE_CTRL_END_THR_MAX 100 +#define CHARGE_CTRL_DELTA_SOC 5 + +struct qcom_battmgr_enable_request { + struct pmic_glink_hdr hdr; + __le32 battery_id; + __le32 power_state; + __le32 low_capacity; + __le32 high_capacity; +}; + +struct qcom_battmgr_property_request { + struct pmic_glink_hdr hdr; + __le32 battery; + __le32 property; + __le32 value; +}; + +struct qcom_battmgr_update_request { + struct pmic_glink_hdr hdr; + __le32 battery_id; +}; + +struct qcom_battmgr_charge_time_request { + struct pmic_glink_hdr hdr; + __le32 battery_id; + __le32 percent; + __le32 reserved; +}; + +struct qcom_battmgr_discharge_time_request { + struct pmic_glink_hdr hdr; + __le32 battery_id; + __le32 rate; /* 0 for current rate */ + __le32 reserved; +}; + +struct qcom_battmgr_charge_ctrl_request { + struct pmic_glink_hdr hdr; + __le32 enable; + __le32 target_soc; + __le32 delta_soc; +}; + +struct qcom_battmgr_message { + struct pmic_glink_hdr hdr; + union { + struct { + __le32 property; + __le32 value; + __le32 result; + } intval; + struct { + __le32 property; + char model[BATTMGR_STRING_LEN]; + } strval; + struct { + /* + * 0: mWh + * 1: mAh + */ + __le32 power_unit; + __le32 design_capacity; + __le32 last_full_capacity; + /* + * 0 nonrechargable + * 1 rechargable + */ + __le32 battery_tech; + __le32 design_voltage; /* mV */ + __le32 capacity_low; + __le32 capacity_warning; + __le32 cycle_count; + /* thousandth of percent */ + __le32 accuracy; + __le32 max_sample_time_ms; + __le32 min_sample_time_ms; + __le32 max_average_interval_ms; + __le32 min_average_interval_ms; + /* granularity between low and warning */ + __le32 capacity_granularity1; + /* granularity between warning and full */ + __le32 capacity_granularity2; + /* + * 0: no + * 1: cold + * 2: hot + */ + __le32 swappable; + __le32 capabilities; + char model_number[BATTMGR_STRING_LEN]; + char serial_number[BATTMGR_STRING_LEN]; + char battery_type[BATTMGR_STRING_LEN]; + char oem_info[BATTMGR_STRING_LEN]; + char battery_chemistry[BATTMGR_CHEMISTRY_LEN]; + char uid[BATTMGR_STRING_LEN]; + __le32 critical_bias; + u8 day; + u8 month; + __le16 year; + __le32 battery_id; + } info; + struct { + /* + * BIT(0) discharging + * BIT(1) charging + * BIT(2) critical low + */ + __le32 battery_state; + /* mWh or mAh, based on info->power_unit */ + __le32 capacity; + __le32 rate; + /* mv */ + __le32 battery_voltage; + /* + * BIT(0) power online + * BIT(1) discharging + * BIT(2) charging + * BIT(3) battery critical + */ + __le32 power_state; + /* + * 1: AC + * 2: USB + * 3: Wireless + */ + __le32 charging_source; + __le32 temperature; + } status; + __le32 time; + __le32 notification; + }; +}; + +#define BATTMGR_CHARGING_SOURCE_AC 1 +#define BATTMGR_CHARGING_SOURCE_USB 2 +#define BATTMGR_CHARGING_SOURCE_WIRELESS 3 + +enum qcom_battmgr_unit { + QCOM_BATTMGR_UNIT_mWh = 0, + QCOM_BATTMGR_UNIT_mAh = 1 +}; + +struct qcom_battmgr_info { + bool valid; + + bool present; + unsigned int charge_type; + unsigned int design_capacity; + unsigned int last_full_capacity; + unsigned int voltage_max_design; + unsigned int voltage_max; + unsigned int capacity_low; + unsigned int capacity_warning; + unsigned int cycle_count; + unsigned int charge_count; + unsigned int charge_ctrl_start; + unsigned int charge_ctrl_end; + char model_number[BATTMGR_STRING_LEN]; + char serial_number[BATTMGR_STRING_LEN]; + char oem_info[BATTMGR_STRING_LEN]; + unsigned char technology; + unsigned char day; + unsigned char month; + unsigned short year; +}; + +struct qcom_battmgr_status { + unsigned int status; + unsigned int health; + unsigned int capacity; + unsigned int percent; + int current_now; + int power_now; + unsigned int voltage_now; + unsigned int voltage_ocv; + unsigned int temperature; + unsigned int resistance; + unsigned int soh_percent; + + unsigned int discharge_time; + unsigned int charge_time; +}; + +struct qcom_battmgr_ac { + bool online; +}; + +struct qcom_battmgr_usb { + bool online; + unsigned int voltage_now; + unsigned int voltage_max; + unsigned int current_now; + unsigned int current_max; + unsigned int current_limit; + unsigned int usb_type; +}; + +struct qcom_battmgr_wireless { + bool online; + unsigned int voltage_now; + unsigned int voltage_max; + unsigned int current_now; + unsigned int current_max; +}; + +struct qcom_battmgr { + struct device *dev; + struct pmic_glink_client *client; + + enum qcom_battmgr_variant variant; + + struct power_supply *ac_psy; + struct power_supply *bat_psy; + struct power_supply *usb_psy; + struct power_supply *wls_psy; + + enum qcom_battmgr_unit unit; + + int error; + struct completion ack; + + bool service_up; + + struct qcom_battmgr_info info; + struct qcom_battmgr_status status; + struct qcom_battmgr_ac ac; + struct qcom_battmgr_usb usb; + struct qcom_battmgr_wireless wireless; + + struct work_struct enable_work; + + /* + * @lock is used to prevent concurrent power supply requests to the + * firmware, as it then stops responding. + */ + struct mutex lock; +}; + +static int qcom_battmgr_request(struct qcom_battmgr *battmgr, void *data, size_t len) +{ + unsigned long left; + int ret; + + reinit_completion(&battmgr->ack); + + battmgr->error = 0; + + ret = pmic_glink_send(battmgr->client, data, len); + if (ret < 0) + return ret; + + left = wait_for_completion_timeout(&battmgr->ack, HZ); + if (!left) + return -ETIMEDOUT; + + return battmgr->error; +} + +static int qcom_battmgr_request_property(struct qcom_battmgr *battmgr, int opcode, + int property, u32 value) +{ + struct qcom_battmgr_property_request request = { + .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR), + .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP), + .hdr.opcode = cpu_to_le32(opcode), + .battery = cpu_to_le32(0), + .property = cpu_to_le32(property), + .value = cpu_to_le32(value), + }; + + return qcom_battmgr_request(battmgr, &request, sizeof(request)); +} + +static int qcom_battmgr_update_status(struct qcom_battmgr *battmgr) +{ + struct qcom_battmgr_update_request request = { + .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR), + .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP), + .hdr.opcode = cpu_to_le32(BATTMGR_BAT_STATUS), + .battery_id = cpu_to_le32(0), + }; + + return qcom_battmgr_request(battmgr, &request, sizeof(request)); +} + +static int qcom_battmgr_update_info(struct qcom_battmgr *battmgr) +{ + struct qcom_battmgr_update_request request = { + .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR), + .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP), + .hdr.opcode = cpu_to_le32(BATTMGR_BAT_INFO), + .battery_id = cpu_to_le32(0), + }; + + return qcom_battmgr_request(battmgr, &request, sizeof(request)); +} + +static int qcom_battmgr_update_charge_time(struct qcom_battmgr *battmgr) +{ + struct qcom_battmgr_charge_time_request request = { + .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR), + .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP), + .hdr.opcode = cpu_to_le32(BATTMGR_BAT_CHARGE_TIME), + .battery_id = cpu_to_le32(0), + .percent = cpu_to_le32(100), + }; + + return qcom_battmgr_request(battmgr, &request, sizeof(request)); +} + +static int qcom_battmgr_update_discharge_time(struct qcom_battmgr *battmgr) +{ + struct qcom_battmgr_discharge_time_request request = { + .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR), + .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP), + .hdr.opcode = cpu_to_le32(BATTMGR_BAT_DISCHARGE_TIME), + .battery_id = cpu_to_le32(0), + .rate = cpu_to_le32(0), + }; + + return qcom_battmgr_request(battmgr, &request, sizeof(request)); +} + +static const u8 sm8350_bat_prop_map[] = { + [POWER_SUPPLY_PROP_STATUS] = BATT_STATUS, + [POWER_SUPPLY_PROP_HEALTH] = BATT_HEALTH, + [POWER_SUPPLY_PROP_PRESENT] = BATT_PRESENT, + [POWER_SUPPLY_PROP_CHARGE_TYPE] = BATT_CHG_TYPE, + [POWER_SUPPLY_PROP_CAPACITY] = BATT_CAPACITY, + [POWER_SUPPLY_PROP_VOLTAGE_OCV] = BATT_VOLT_OCV, + [POWER_SUPPLY_PROP_VOLTAGE_NOW] = BATT_VOLT_NOW, + [POWER_SUPPLY_PROP_VOLTAGE_MAX] = BATT_VOLT_MAX, + [POWER_SUPPLY_PROP_CURRENT_NOW] = BATT_CURR_NOW, + [POWER_SUPPLY_PROP_TEMP] = BATT_TEMP, + [POWER_SUPPLY_PROP_TECHNOLOGY] = BATT_TECHNOLOGY, + [POWER_SUPPLY_PROP_CHARGE_COUNTER] = BATT_CHG_COUNTER, + [POWER_SUPPLY_PROP_CYCLE_COUNT] = BATT_CYCLE_COUNT, + [POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN] = BATT_CHG_FULL_DESIGN, + [POWER_SUPPLY_PROP_CHARGE_FULL] = BATT_CHG_FULL, + [POWER_SUPPLY_PROP_MODEL_NAME] = BATT_MODEL_NAME, + [POWER_SUPPLY_PROP_TIME_TO_FULL_AVG] = BATT_TTF_AVG, + [POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG] = BATT_TTE_AVG, + [POWER_SUPPLY_PROP_INTERNAL_RESISTANCE] = BATT_RESISTANCE, + [POWER_SUPPLY_PROP_STATE_OF_HEALTH] = BATT_SOH, + [POWER_SUPPLY_PROP_POWER_NOW] = BATT_POWER_NOW, + [POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD] = BATT_CHG_CTRL_START_THR, + [POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD] = BATT_CHG_CTRL_END_THR, +}; + +static int qcom_battmgr_bat_sm8350_update(struct qcom_battmgr *battmgr, + enum power_supply_property psp) +{ + unsigned int prop; + int ret; + + if (psp >= ARRAY_SIZE(sm8350_bat_prop_map)) + return -EINVAL; + + prop = sm8350_bat_prop_map[psp]; + + mutex_lock(&battmgr->lock); + ret = qcom_battmgr_request_property(battmgr, BATTMGR_BAT_PROPERTY_GET, prop, 0); + mutex_unlock(&battmgr->lock); + + return ret; +} + +static int qcom_battmgr_bat_sc8280xp_update(struct qcom_battmgr *battmgr, + enum power_supply_property psp) +{ + int ret; + + mutex_lock(&battmgr->lock); + + if (!battmgr->info.valid) { + ret = qcom_battmgr_update_info(battmgr); + if (ret < 0) + goto out_unlock; + battmgr->info.valid = true; + } + + ret = qcom_battmgr_update_status(battmgr); + if (ret < 0) + goto out_unlock; + + if (psp == POWER_SUPPLY_PROP_TIME_TO_FULL_AVG) { + ret = qcom_battmgr_update_charge_time(battmgr); + if (ret < 0) { + ret = -ENODATA; + goto out_unlock; + } + } + + if (psp == POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG) { + ret = qcom_battmgr_update_discharge_time(battmgr); + if (ret < 0) { + ret = -ENODATA; + goto out_unlock; + } + } + +out_unlock: + mutex_unlock(&battmgr->lock); + return ret; +} + +static int qcom_battmgr_bat_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy); + enum qcom_battmgr_unit unit = battmgr->unit; + int ret; + + if (!battmgr->service_up) + return -EAGAIN; + + if (battmgr->variant == QCOM_BATTMGR_SC8280XP || + battmgr->variant == QCOM_BATTMGR_X1E80100) + ret = qcom_battmgr_bat_sc8280xp_update(battmgr, psp); + else + ret = qcom_battmgr_bat_sm8350_update(battmgr, psp); + if (ret < 0) + return ret; + + switch (psp) { + case POWER_SUPPLY_PROP_STATUS: + val->intval = battmgr->status.status; + break; + case POWER_SUPPLY_PROP_CHARGE_TYPE: + val->intval = battmgr->info.charge_type; + break; + case POWER_SUPPLY_PROP_HEALTH: + val->intval = battmgr->status.health; + break; + case POWER_SUPPLY_PROP_PRESENT: + val->intval = battmgr->info.present; + break; + case POWER_SUPPLY_PROP_TECHNOLOGY: + val->intval = battmgr->info.technology; + break; + case POWER_SUPPLY_PROP_CYCLE_COUNT: + val->intval = battmgr->info.cycle_count; + break; + case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: + val->intval = battmgr->info.voltage_max_design; + break; + case POWER_SUPPLY_PROP_VOLTAGE_MAX: + val->intval = battmgr->info.voltage_max; + break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + val->intval = battmgr->status.voltage_now; + break; + case POWER_SUPPLY_PROP_VOLTAGE_OCV: + val->intval = battmgr->status.voltage_ocv; + break; + case POWER_SUPPLY_PROP_CURRENT_NOW: + val->intval = battmgr->status.current_now; + break; + case POWER_SUPPLY_PROP_POWER_NOW: + val->intval = battmgr->status.power_now; + break; + case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: + if (unit != QCOM_BATTMGR_UNIT_mAh) + return -ENODATA; + val->intval = battmgr->info.design_capacity; + break; + case POWER_SUPPLY_PROP_CHARGE_FULL: + if (unit != QCOM_BATTMGR_UNIT_mAh) + return -ENODATA; + val->intval = battmgr->info.last_full_capacity; + break; + case POWER_SUPPLY_PROP_CHARGE_EMPTY: + if (unit != QCOM_BATTMGR_UNIT_mAh) + return -ENODATA; + val->intval = battmgr->info.capacity_low; + break; + case POWER_SUPPLY_PROP_CHARGE_NOW: + if (unit != QCOM_BATTMGR_UNIT_mAh) + return -ENODATA; + val->intval = battmgr->status.capacity; + break; + case POWER_SUPPLY_PROP_CHARGE_COUNTER: + val->intval = battmgr->info.charge_count; + break; + case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: + if (unit != QCOM_BATTMGR_UNIT_mWh) + return -ENODATA; + val->intval = battmgr->info.design_capacity; + break; + case POWER_SUPPLY_PROP_ENERGY_FULL: + if (unit != QCOM_BATTMGR_UNIT_mWh) + return -ENODATA; + val->intval = battmgr->info.last_full_capacity; + break; + case POWER_SUPPLY_PROP_ENERGY_EMPTY: + if (unit != QCOM_BATTMGR_UNIT_mWh) + return -ENODATA; + val->intval = battmgr->info.capacity_low; + break; + case POWER_SUPPLY_PROP_ENERGY_NOW: + if (unit != QCOM_BATTMGR_UNIT_mWh) + return -ENODATA; + val->intval = battmgr->status.capacity; + break; + case POWER_SUPPLY_PROP_CAPACITY: + if (battmgr->status.percent == (unsigned int)-1) + return -ENODATA; + val->intval = battmgr->status.percent; + break; + case POWER_SUPPLY_PROP_TEMP: + val->intval = battmgr->status.temperature; + break; + case POWER_SUPPLY_PROP_INTERNAL_RESISTANCE: + val->intval = battmgr->status.resistance; + break; + case POWER_SUPPLY_PROP_STATE_OF_HEALTH: + val->intval = battmgr->status.soh_percent; + break; + case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: + val->intval = battmgr->status.discharge_time; + break; + case POWER_SUPPLY_PROP_TIME_TO_FULL_AVG: + val->intval = battmgr->status.charge_time; + break; + case POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD: + val->intval = battmgr->info.charge_ctrl_start; + break; + case POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD: + val->intval = battmgr->info.charge_ctrl_end; + break; + case POWER_SUPPLY_PROP_MANUFACTURE_YEAR: + val->intval = battmgr->info.year; + break; + case POWER_SUPPLY_PROP_MANUFACTURE_MONTH: + val->intval = battmgr->info.month; + break; + case POWER_SUPPLY_PROP_MANUFACTURE_DAY: + val->intval = battmgr->info.day; + break; + case POWER_SUPPLY_PROP_MODEL_NAME: + val->strval = battmgr->info.model_number; + break; + case POWER_SUPPLY_PROP_MANUFACTURER: + val->strval = battmgr->info.oem_info; + break; + case POWER_SUPPLY_PROP_SERIAL_NUMBER: + val->strval = battmgr->info.serial_number; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int qcom_battmgr_set_charge_control(struct qcom_battmgr *battmgr, + u32 target_soc, u32 delta_soc) +{ + struct qcom_battmgr_charge_ctrl_request request = { + .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR), + .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP), + .hdr.opcode = cpu_to_le32(BATTMGR_CHG_CTRL_LIMIT_EN), + .enable = cpu_to_le32(1), + .target_soc = cpu_to_le32(target_soc), + .delta_soc = cpu_to_le32(delta_soc), + }; + + return qcom_battmgr_request(battmgr, &request, sizeof(request)); +} + +static int qcom_battmgr_set_charge_start_threshold(struct qcom_battmgr *battmgr, int start_soc) +{ + u32 target_soc, delta_soc; + int ret; + + start_soc = clamp(start_soc, CHARGE_CTRL_START_THR_MIN, CHARGE_CTRL_START_THR_MAX); + + /* + * If the new start threshold is larger than the old end threshold, + * move the end threshold one step (DELTA_SOC) after the new start + * threshold. + */ + if (start_soc > battmgr->info.charge_ctrl_end) { + target_soc = start_soc + CHARGE_CTRL_DELTA_SOC; + target_soc = min_t(u32, target_soc, CHARGE_CTRL_END_THR_MAX); + delta_soc = target_soc - start_soc; + delta_soc = min_t(u32, delta_soc, CHARGE_CTRL_DELTA_SOC); + } else { + target_soc = battmgr->info.charge_ctrl_end; + delta_soc = battmgr->info.charge_ctrl_end - start_soc; + } + + mutex_lock(&battmgr->lock); + ret = qcom_battmgr_set_charge_control(battmgr, target_soc, delta_soc); + mutex_unlock(&battmgr->lock); + if (!ret) { + battmgr->info.charge_ctrl_start = start_soc; + battmgr->info.charge_ctrl_end = target_soc; + } + + return 0; +} + +static int qcom_battmgr_set_charge_end_threshold(struct qcom_battmgr *battmgr, int end_soc) +{ + u32 delta_soc = CHARGE_CTRL_DELTA_SOC; + int ret; + + end_soc = clamp(end_soc, CHARGE_CTRL_END_THR_MIN, CHARGE_CTRL_END_THR_MAX); + + if (battmgr->info.charge_ctrl_start && end_soc > battmgr->info.charge_ctrl_start) + delta_soc = end_soc - battmgr->info.charge_ctrl_start; + + mutex_lock(&battmgr->lock); + ret = qcom_battmgr_set_charge_control(battmgr, end_soc, delta_soc); + mutex_unlock(&battmgr->lock); + if (!ret) { + battmgr->info.charge_ctrl_start = end_soc - delta_soc; + battmgr->info.charge_ctrl_end = end_soc; + } + + return 0; +} + +static int qcom_battmgr_charge_control_thresholds_init(struct qcom_battmgr *battmgr) +{ + int ret; + u8 en, end_soc, start_soc, delta_soc; + + ret = nvmem_cell_read_u8(battmgr->dev->parent, "charge_limit_en", &en); + if (!ret && en != 0) { + ret = nvmem_cell_read_u8(battmgr->dev->parent, "charge_limit_end", &end_soc); + if (ret < 0) + return ret; + + ret = nvmem_cell_read_u8(battmgr->dev->parent, "charge_limit_delta", &delta_soc); + if (ret < 0) + return ret; + + if (delta_soc >= end_soc) + return -EINVAL; + + start_soc = end_soc - delta_soc; + end_soc = clamp(end_soc, CHARGE_CTRL_END_THR_MIN, CHARGE_CTRL_END_THR_MAX); + start_soc = clamp(start_soc, CHARGE_CTRL_START_THR_MIN, CHARGE_CTRL_START_THR_MAX); + + battmgr->info.charge_ctrl_start = start_soc; + battmgr->info.charge_ctrl_end = end_soc; + } + + return 0; +} + +static int qcom_battmgr_bat_is_writeable(struct power_supply *psy, + enum power_supply_property psp) +{ + switch (psp) { + case POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD: + case POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD: + return 1; + default: + return 0; + } + + return 0; +} + +static int qcom_battmgr_bat_set_property(struct power_supply *psy, + enum power_supply_property psp, + const union power_supply_propval *pval) +{ + struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy); + + if (!battmgr->service_up) + return -EAGAIN; + + switch (psp) { + case POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD: + return qcom_battmgr_set_charge_start_threshold(battmgr, pval->intval); + case POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD: + return qcom_battmgr_set_charge_end_threshold(battmgr, pval->intval); + default: + return -EINVAL; + } + + return 0; +} + +static const enum power_supply_property sc8280xp_bat_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_TECHNOLOGY, + POWER_SUPPLY_PROP_CAPACITY, + POWER_SUPPLY_PROP_CYCLE_COUNT, + POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_POWER_NOW, + POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, + POWER_SUPPLY_PROP_CHARGE_FULL, + POWER_SUPPLY_PROP_CHARGE_EMPTY, + POWER_SUPPLY_PROP_CHARGE_NOW, + POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, + POWER_SUPPLY_PROP_ENERGY_FULL, + POWER_SUPPLY_PROP_ENERGY_EMPTY, + POWER_SUPPLY_PROP_ENERGY_NOW, + POWER_SUPPLY_PROP_TEMP, + POWER_SUPPLY_PROP_MANUFACTURE_YEAR, + POWER_SUPPLY_PROP_MANUFACTURE_MONTH, + POWER_SUPPLY_PROP_MANUFACTURE_DAY, + POWER_SUPPLY_PROP_MODEL_NAME, + POWER_SUPPLY_PROP_MANUFACTURER, + POWER_SUPPLY_PROP_SERIAL_NUMBER, +}; + +static const struct power_supply_desc sc8280xp_bat_psy_desc = { + .name = "qcom-battmgr-bat", + .type = POWER_SUPPLY_TYPE_BATTERY, + .properties = sc8280xp_bat_props, + .num_properties = ARRAY_SIZE(sc8280xp_bat_props), + .get_property = qcom_battmgr_bat_get_property, +}; + +static const enum power_supply_property x1e80100_bat_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_TECHNOLOGY, + POWER_SUPPLY_PROP_CYCLE_COUNT, + POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_POWER_NOW, + POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, + POWER_SUPPLY_PROP_CHARGE_FULL, + POWER_SUPPLY_PROP_CHARGE_EMPTY, + POWER_SUPPLY_PROP_CHARGE_NOW, + POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, + POWER_SUPPLY_PROP_ENERGY_FULL, + POWER_SUPPLY_PROP_ENERGY_EMPTY, + POWER_SUPPLY_PROP_ENERGY_NOW, + POWER_SUPPLY_PROP_TEMP, + POWER_SUPPLY_PROP_MANUFACTURE_YEAR, + POWER_SUPPLY_PROP_MANUFACTURE_MONTH, + POWER_SUPPLY_PROP_MANUFACTURE_DAY, + POWER_SUPPLY_PROP_MODEL_NAME, + POWER_SUPPLY_PROP_MANUFACTURER, + POWER_SUPPLY_PROP_SERIAL_NUMBER, + POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD, + POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD, +}; + +static const struct power_supply_desc x1e80100_bat_psy_desc = { + .name = "qcom-battmgr-bat", + .type = POWER_SUPPLY_TYPE_BATTERY, + .properties = x1e80100_bat_props, + .num_properties = ARRAY_SIZE(x1e80100_bat_props), + .get_property = qcom_battmgr_bat_get_property, + .set_property = qcom_battmgr_bat_set_property, + .property_is_writeable = qcom_battmgr_bat_is_writeable, +}; + +static const enum power_supply_property sm8350_bat_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_CHARGE_TYPE, + POWER_SUPPLY_PROP_CAPACITY, + POWER_SUPPLY_PROP_VOLTAGE_OCV, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_VOLTAGE_MAX, + POWER_SUPPLY_PROP_CURRENT_NOW, + POWER_SUPPLY_PROP_TEMP, + POWER_SUPPLY_PROP_TECHNOLOGY, + POWER_SUPPLY_PROP_CHARGE_COUNTER, + POWER_SUPPLY_PROP_CYCLE_COUNT, + POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, + POWER_SUPPLY_PROP_CHARGE_FULL, + POWER_SUPPLY_PROP_MODEL_NAME, + POWER_SUPPLY_PROP_TIME_TO_FULL_AVG, + POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, + POWER_SUPPLY_PROP_INTERNAL_RESISTANCE, + POWER_SUPPLY_PROP_STATE_OF_HEALTH, + POWER_SUPPLY_PROP_POWER_NOW, +}; + +static const struct power_supply_desc sm8350_bat_psy_desc = { + .name = "qcom-battmgr-bat", + .type = POWER_SUPPLY_TYPE_BATTERY, + .properties = sm8350_bat_props, + .num_properties = ARRAY_SIZE(sm8350_bat_props), + .get_property = qcom_battmgr_bat_get_property, +}; + +static const enum power_supply_property sm8550_bat_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_CHARGE_TYPE, + POWER_SUPPLY_PROP_CAPACITY, + POWER_SUPPLY_PROP_VOLTAGE_OCV, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_VOLTAGE_MAX, + POWER_SUPPLY_PROP_CURRENT_NOW, + POWER_SUPPLY_PROP_TEMP, + POWER_SUPPLY_PROP_TECHNOLOGY, + POWER_SUPPLY_PROP_CHARGE_COUNTER, + POWER_SUPPLY_PROP_CYCLE_COUNT, + POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, + POWER_SUPPLY_PROP_CHARGE_FULL, + POWER_SUPPLY_PROP_MODEL_NAME, + POWER_SUPPLY_PROP_TIME_TO_FULL_AVG, + POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, + POWER_SUPPLY_PROP_INTERNAL_RESISTANCE, + POWER_SUPPLY_PROP_STATE_OF_HEALTH, + POWER_SUPPLY_PROP_POWER_NOW, + POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD, + POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD, +}; + +static const struct power_supply_desc sm8550_bat_psy_desc = { + .name = "qcom-battmgr-bat", + .type = POWER_SUPPLY_TYPE_BATTERY, + .properties = sm8550_bat_props, + .num_properties = ARRAY_SIZE(sm8550_bat_props), + .get_property = qcom_battmgr_bat_get_property, + .set_property = qcom_battmgr_bat_set_property, + .property_is_writeable = qcom_battmgr_bat_is_writeable, +}; + +static int qcom_battmgr_ac_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy); + int ret; + + if (!battmgr->service_up) + return -EAGAIN; + + ret = qcom_battmgr_bat_sc8280xp_update(battmgr, psp); + if (ret) + return ret; + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + val->intval = battmgr->ac.online; + break; + default: + return -EINVAL; + } + + return 0; +} + +static const enum power_supply_property sc8280xp_ac_props[] = { + POWER_SUPPLY_PROP_ONLINE, +}; + +static const struct power_supply_desc sc8280xp_ac_psy_desc = { + .name = "qcom-battmgr-ac", + .type = POWER_SUPPLY_TYPE_MAINS, + .properties = sc8280xp_ac_props, + .num_properties = ARRAY_SIZE(sc8280xp_ac_props), + .get_property = qcom_battmgr_ac_get_property, +}; + +static const u8 sm8350_usb_prop_map[] = { + [POWER_SUPPLY_PROP_ONLINE] = USB_ONLINE, + [POWER_SUPPLY_PROP_VOLTAGE_NOW] = USB_VOLT_NOW, + [POWER_SUPPLY_PROP_VOLTAGE_MAX] = USB_VOLT_MAX, + [POWER_SUPPLY_PROP_CURRENT_NOW] = USB_CURR_NOW, + [POWER_SUPPLY_PROP_CURRENT_MAX] = USB_CURR_MAX, + [POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT] = USB_INPUT_CURR_LIMIT, + [POWER_SUPPLY_PROP_USB_TYPE] = USB_TYPE, +}; + +static int qcom_battmgr_usb_sm8350_update(struct qcom_battmgr *battmgr, + enum power_supply_property psp) +{ + unsigned int prop; + int ret; + + if (psp >= ARRAY_SIZE(sm8350_usb_prop_map)) + return -EINVAL; + + prop = sm8350_usb_prop_map[psp]; + + mutex_lock(&battmgr->lock); + ret = qcom_battmgr_request_property(battmgr, BATTMGR_USB_PROPERTY_GET, prop, 0); + mutex_unlock(&battmgr->lock); + + return ret; +} + +static int qcom_battmgr_usb_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy); + int ret; + + if (!battmgr->service_up) + return -EAGAIN; + + if (battmgr->variant == QCOM_BATTMGR_SC8280XP || + battmgr->variant == QCOM_BATTMGR_X1E80100) + ret = qcom_battmgr_bat_sc8280xp_update(battmgr, psp); + else + ret = qcom_battmgr_usb_sm8350_update(battmgr, psp); + if (ret) + return ret; + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + val->intval = battmgr->usb.online; + break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + val->intval = battmgr->usb.voltage_now; + break; + case POWER_SUPPLY_PROP_VOLTAGE_MAX: + val->intval = battmgr->usb.voltage_max; + break; + case POWER_SUPPLY_PROP_CURRENT_NOW: + val->intval = battmgr->usb.current_now; + break; + case POWER_SUPPLY_PROP_CURRENT_MAX: + val->intval = battmgr->usb.current_max; + break; + case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: + val->intval = battmgr->usb.current_limit; + break; + case POWER_SUPPLY_PROP_USB_TYPE: + val->intval = battmgr->usb.usb_type; + break; + default: + return -EINVAL; + } + + return 0; +} + +static const enum power_supply_property sc8280xp_usb_props[] = { + POWER_SUPPLY_PROP_ONLINE, +}; + +static const struct power_supply_desc sc8280xp_usb_psy_desc = { + .name = "qcom-battmgr-usb", + .type = POWER_SUPPLY_TYPE_USB, + .properties = sc8280xp_usb_props, + .num_properties = ARRAY_SIZE(sc8280xp_usb_props), + .get_property = qcom_battmgr_usb_get_property, + .usb_types = BIT(POWER_SUPPLY_USB_TYPE_UNKNOWN) | + BIT(POWER_SUPPLY_USB_TYPE_SDP) | + BIT(POWER_SUPPLY_USB_TYPE_DCP) | + BIT(POWER_SUPPLY_USB_TYPE_CDP) | + BIT(POWER_SUPPLY_USB_TYPE_ACA) | + BIT(POWER_SUPPLY_USB_TYPE_C) | + BIT(POWER_SUPPLY_USB_TYPE_PD) | + BIT(POWER_SUPPLY_USB_TYPE_PD_DRP) | + BIT(POWER_SUPPLY_USB_TYPE_PD_PPS) | + BIT(POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID), +}; + +static const enum power_supply_property sm8350_usb_props[] = { + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_VOLTAGE_MAX, + POWER_SUPPLY_PROP_CURRENT_NOW, + POWER_SUPPLY_PROP_CURRENT_MAX, + POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, + POWER_SUPPLY_PROP_USB_TYPE, +}; + +static const struct power_supply_desc sm8350_usb_psy_desc = { + .name = "qcom-battmgr-usb", + .type = POWER_SUPPLY_TYPE_USB, + .properties = sm8350_usb_props, + .num_properties = ARRAY_SIZE(sm8350_usb_props), + .get_property = qcom_battmgr_usb_get_property, + .usb_types = BIT(POWER_SUPPLY_USB_TYPE_UNKNOWN) | + BIT(POWER_SUPPLY_USB_TYPE_SDP) | + BIT(POWER_SUPPLY_USB_TYPE_DCP) | + BIT(POWER_SUPPLY_USB_TYPE_CDP) | + BIT(POWER_SUPPLY_USB_TYPE_ACA) | + BIT(POWER_SUPPLY_USB_TYPE_C) | + BIT(POWER_SUPPLY_USB_TYPE_PD) | + BIT(POWER_SUPPLY_USB_TYPE_PD_DRP) | + BIT(POWER_SUPPLY_USB_TYPE_PD_PPS) | + BIT(POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID), +}; + +static const u8 sm8350_wls_prop_map[] = { + [POWER_SUPPLY_PROP_ONLINE] = WLS_ONLINE, + [POWER_SUPPLY_PROP_VOLTAGE_NOW] = WLS_VOLT_NOW, + [POWER_SUPPLY_PROP_VOLTAGE_MAX] = WLS_VOLT_MAX, + [POWER_SUPPLY_PROP_CURRENT_NOW] = WLS_CURR_NOW, + [POWER_SUPPLY_PROP_CURRENT_MAX] = WLS_CURR_MAX, +}; + +static int qcom_battmgr_wls_sm8350_update(struct qcom_battmgr *battmgr, + enum power_supply_property psp) +{ + unsigned int prop; + int ret; + + if (psp >= ARRAY_SIZE(sm8350_wls_prop_map)) + return -EINVAL; + + prop = sm8350_wls_prop_map[psp]; + + mutex_lock(&battmgr->lock); + ret = qcom_battmgr_request_property(battmgr, BATTMGR_WLS_PROPERTY_GET, prop, 0); + mutex_unlock(&battmgr->lock); + + return ret; +} + +static int qcom_battmgr_wls_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy); + int ret; + + if (!battmgr->service_up) + return -EAGAIN; + + if (battmgr->variant == QCOM_BATTMGR_SC8280XP || + battmgr->variant == QCOM_BATTMGR_X1E80100) + ret = qcom_battmgr_bat_sc8280xp_update(battmgr, psp); + else + ret = qcom_battmgr_wls_sm8350_update(battmgr, psp); + if (ret < 0) + return ret; + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + val->intval = battmgr->wireless.online; + break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + val->intval = battmgr->wireless.voltage_now; + break; + case POWER_SUPPLY_PROP_VOLTAGE_MAX: + val->intval = battmgr->wireless.voltage_max; + break; + case POWER_SUPPLY_PROP_CURRENT_NOW: + val->intval = battmgr->wireless.current_now; + break; + case POWER_SUPPLY_PROP_CURRENT_MAX: + val->intval = battmgr->wireless.current_max; + break; + default: + return -EINVAL; + } + + return 0; +} + +static const enum power_supply_property sc8280xp_wls_props[] = { + POWER_SUPPLY_PROP_ONLINE, +}; + +static const struct power_supply_desc sc8280xp_wls_psy_desc = { + .name = "qcom-battmgr-wls", + .type = POWER_SUPPLY_TYPE_WIRELESS, + .properties = sc8280xp_wls_props, + .num_properties = ARRAY_SIZE(sc8280xp_wls_props), + .get_property = qcom_battmgr_wls_get_property, +}; + +static const enum power_supply_property sm8350_wls_props[] = { + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_VOLTAGE_MAX, + POWER_SUPPLY_PROP_CURRENT_NOW, + POWER_SUPPLY_PROP_CURRENT_MAX, +}; + +static const struct power_supply_desc sm8350_wls_psy_desc = { + .name = "qcom-battmgr-wls", + .type = POWER_SUPPLY_TYPE_WIRELESS, + .properties = sm8350_wls_props, + .num_properties = ARRAY_SIZE(sm8350_wls_props), + .get_property = qcom_battmgr_wls_get_property, +}; + +static void qcom_battmgr_notification(struct qcom_battmgr *battmgr, + const struct qcom_battmgr_message *msg, + int len) +{ + size_t payload_len = len - sizeof(struct pmic_glink_hdr); + unsigned int notification; + + if (payload_len != sizeof(msg->notification)) { + dev_warn(battmgr->dev, "ignoring notification with invalid length\n"); + return; + } + + notification = le32_to_cpu(msg->notification); + notification &= 0xff; + switch (notification) { + case NOTIF_BAT_INFO: + battmgr->info.valid = false; + fallthrough; + case NOTIF_BAT_STATUS: + case NOTIF_BAT_PROPERTY: + case NOTIF_BAT_CHARGING_STATE: + power_supply_changed(battmgr->bat_psy); + break; + case NOTIF_USB_PROPERTY: + power_supply_changed(battmgr->usb_psy); + break; + case NOTIF_WLS_PROPERTY: + power_supply_changed(battmgr->wls_psy); + break; + default: + dev_err(battmgr->dev, "unknown notification: %#x\n", notification); + break; + } +} + +static void qcom_battmgr_sc8280xp_strcpy(char *dest, const char *src) +{ + size_t len = src[0]; + + /* Some firmware versions return Pascal-style strings */ + if (len < BATTMGR_STRING_LEN && len == strnlen(src + 1, BATTMGR_STRING_LEN - 1)) { + memcpy(dest, src + 1, len); + dest[len] = '\0'; + } else { + memcpy(dest, src, BATTMGR_STRING_LEN); + } +} + +static unsigned int qcom_battmgr_sc8280xp_parse_technology(const char *chemistry) +{ + if ((!strncmp(chemistry, "LIO", BATTMGR_CHEMISTRY_LEN)) || + (!strncmp(chemistry, "OOI", BATTMGR_CHEMISTRY_LEN))) + return POWER_SUPPLY_TECHNOLOGY_LION; + if (!strncmp(chemistry, "LIP", BATTMGR_CHEMISTRY_LEN)) + return POWER_SUPPLY_TECHNOLOGY_LIPO; + + pr_err("Unknown battery technology '%s'\n", chemistry); + return POWER_SUPPLY_TECHNOLOGY_UNKNOWN; +} + +static unsigned int qcom_battmgr_sc8280xp_convert_temp(unsigned int temperature) +{ + return DIV_ROUND_CLOSEST(temperature, 10); +} + +static void qcom_battmgr_sc8280xp_callback(struct qcom_battmgr *battmgr, + const struct qcom_battmgr_message *resp, + size_t len) +{ + unsigned int opcode = le32_to_cpu(resp->hdr.opcode); + unsigned int source; + unsigned int state; + size_t payload_len = len - sizeof(struct pmic_glink_hdr); + + if (payload_len < sizeof(__le32)) { + dev_warn(battmgr->dev, "invalid payload length for %#x: %zd\n", + opcode, len); + return; + } + + switch (opcode) { + case BATTMGR_REQUEST_NOTIFICATION: + battmgr->error = 0; + break; + case BATTMGR_BAT_INFO: + /* some firmware versions report an extra __le32 at the end of the payload */ + if (payload_len != sizeof(resp->info) && + payload_len != (sizeof(resp->info) + sizeof(__le32))) { + dev_warn(battmgr->dev, + "invalid payload length for battery information request: %zd\n", + payload_len); + battmgr->error = -ENODATA; + return; + } + + battmgr->unit = le32_to_cpu(resp->info.power_unit); + + battmgr->info.present = true; + battmgr->info.design_capacity = le32_to_cpu(resp->info.design_capacity) * 1000; + battmgr->info.last_full_capacity = le32_to_cpu(resp->info.last_full_capacity) * 1000; + battmgr->info.voltage_max_design = le32_to_cpu(resp->info.design_voltage) * 1000; + battmgr->info.capacity_low = le32_to_cpu(resp->info.capacity_low) * 1000; + battmgr->info.cycle_count = le32_to_cpu(resp->info.cycle_count); + qcom_battmgr_sc8280xp_strcpy(battmgr->info.model_number, resp->info.model_number); + qcom_battmgr_sc8280xp_strcpy(battmgr->info.serial_number, resp->info.serial_number); + battmgr->info.technology = qcom_battmgr_sc8280xp_parse_technology(resp->info.battery_chemistry); + qcom_battmgr_sc8280xp_strcpy(battmgr->info.oem_info, resp->info.oem_info); + battmgr->info.day = resp->info.day; + battmgr->info.month = resp->info.month; + battmgr->info.year = le16_to_cpu(resp->info.year); + break; + case BATTMGR_BAT_STATUS: + if (payload_len != sizeof(resp->status)) { + dev_warn(battmgr->dev, + "invalid payload length for battery status request: %zd\n", + payload_len); + battmgr->error = -ENODATA; + return; + } + + state = le32_to_cpu(resp->status.battery_state); + if (state & BIT(0)) + battmgr->status.status = POWER_SUPPLY_STATUS_DISCHARGING; + else if (state & BIT(1)) + battmgr->status.status = POWER_SUPPLY_STATUS_CHARGING; + else + battmgr->status.status = POWER_SUPPLY_STATUS_NOT_CHARGING; + + battmgr->status.capacity = le32_to_cpu(resp->status.capacity) * 1000; + battmgr->status.power_now = le32_to_cpu(resp->status.rate) * 1000; + battmgr->status.voltage_now = le32_to_cpu(resp->status.battery_voltage) * 1000; + battmgr->status.temperature = qcom_battmgr_sc8280xp_convert_temp(le32_to_cpu(resp->status.temperature)); + + source = le32_to_cpu(resp->status.charging_source); + battmgr->ac.online = source == BATTMGR_CHARGING_SOURCE_AC; + battmgr->usb.online = source == BATTMGR_CHARGING_SOURCE_USB; + battmgr->wireless.online = source == BATTMGR_CHARGING_SOURCE_WIRELESS; + if (battmgr->info.last_full_capacity != 0) { + /* + * 100 * battmgr->status.capacity can overflow a 32bit + * unsigned integer. FW readings are in m{W/A}h, which + * are multiplied by 1000 converting them to u{W/A}h, + * the format the power_supply API expects. + * To avoid overflow use the original value for dividend + * and convert the divider back to m{W/A}h, which can be + * done without any loss of precision. + */ + battmgr->status.percent = + (100 * le32_to_cpu(resp->status.capacity)) / + (battmgr->info.last_full_capacity / 1000); + } else { + /* + * Let the sysfs handler know no data is available at + * this time. + */ + battmgr->status.percent = (unsigned int)-1; + } + break; + case BATTMGR_BAT_DISCHARGE_TIME: + battmgr->status.discharge_time = le32_to_cpu(resp->time); + break; + case BATTMGR_BAT_CHARGE_TIME: + battmgr->status.charge_time = le32_to_cpu(resp->time); + break; + case BATTMGR_CHG_CTRL_LIMIT_EN: + battmgr->error = 0; + break; + default: + dev_warn(battmgr->dev, "unknown message %#x\n", opcode); + break; + } + + complete(&battmgr->ack); +} + +static void qcom_battmgr_sm8350_callback(struct qcom_battmgr *battmgr, + const struct qcom_battmgr_message *resp, + size_t len) +{ + unsigned int property; + unsigned int opcode = le32_to_cpu(resp->hdr.opcode); + size_t payload_len = len - sizeof(struct pmic_glink_hdr); + unsigned int val; + + if (payload_len < sizeof(__le32)) { + dev_warn(battmgr->dev, "invalid payload length for %#x: %zd\n", + opcode, len); + return; + } + + switch (opcode) { + case BATTMGR_BAT_PROPERTY_GET: + property = le32_to_cpu(resp->intval.property); + if (property == BATT_MODEL_NAME) { + if (payload_len != sizeof(resp->strval)) { + dev_warn(battmgr->dev, + "invalid payload length for BATT_MODEL_NAME request: %zd\n", + payload_len); + battmgr->error = -ENODATA; + return; + } + } else { + if (payload_len != sizeof(resp->intval)) { + dev_warn(battmgr->dev, + "invalid payload length for %#x request: %zd\n", + property, payload_len); + battmgr->error = -ENODATA; + return; + } + + battmgr->error = le32_to_cpu(resp->intval.result); + if (battmgr->error) + goto out_complete; + } + + switch (property) { + case BATT_STATUS: + battmgr->status.status = le32_to_cpu(resp->intval.value); + break; + case BATT_HEALTH: + battmgr->status.health = le32_to_cpu(resp->intval.value); + break; + case BATT_PRESENT: + battmgr->info.present = le32_to_cpu(resp->intval.value); + break; + case BATT_CHG_TYPE: + battmgr->info.charge_type = le32_to_cpu(resp->intval.value); + break; + case BATT_CAPACITY: + battmgr->status.percent = le32_to_cpu(resp->intval.value) / 100; + break; + case BATT_SOH: + battmgr->status.soh_percent = le32_to_cpu(resp->intval.value); + break; + case BATT_VOLT_OCV: + battmgr->status.voltage_ocv = le32_to_cpu(resp->intval.value); + break; + case BATT_VOLT_NOW: + battmgr->status.voltage_now = le32_to_cpu(resp->intval.value); + break; + case BATT_VOLT_MAX: + battmgr->info.voltage_max = le32_to_cpu(resp->intval.value); + break; + case BATT_CURR_NOW: + battmgr->status.current_now = le32_to_cpu(resp->intval.value); + break; + case BATT_TEMP: + val = le32_to_cpu(resp->intval.value); + battmgr->status.temperature = DIV_ROUND_CLOSEST(val, 10); + break; + case BATT_TECHNOLOGY: + battmgr->info.technology = le32_to_cpu(resp->intval.value); + break; + case BATT_CHG_COUNTER: + battmgr->info.charge_count = le32_to_cpu(resp->intval.value); + break; + case BATT_CYCLE_COUNT: + battmgr->info.cycle_count = le32_to_cpu(resp->intval.value); + break; + case BATT_CHG_FULL_DESIGN: + battmgr->info.design_capacity = le32_to_cpu(resp->intval.value); + break; + case BATT_CHG_FULL: + battmgr->info.last_full_capacity = le32_to_cpu(resp->intval.value); + break; + case BATT_MODEL_NAME: + strscpy(battmgr->info.model_number, resp->strval.model, BATTMGR_STRING_LEN); + break; + case BATT_TTF_AVG: + battmgr->status.charge_time = le32_to_cpu(resp->intval.value); + break; + case BATT_TTE_AVG: + battmgr->status.discharge_time = le32_to_cpu(resp->intval.value); + break; + case BATT_RESISTANCE: + battmgr->status.resistance = le32_to_cpu(resp->intval.value); + break; + case BATT_POWER_NOW: + battmgr->status.power_now = le32_to_cpu(resp->intval.value); + break; + case BATT_CHG_CTRL_START_THR: + battmgr->info.charge_ctrl_start = le32_to_cpu(resp->intval.value); + break; + case BATT_CHG_CTRL_END_THR: + battmgr->info.charge_ctrl_end = le32_to_cpu(resp->intval.value); + break; + default: + dev_warn(battmgr->dev, "unknown property %#x\n", property); + break; + } + break; + case BATTMGR_USB_PROPERTY_GET: + property = le32_to_cpu(resp->intval.property); + if (payload_len != sizeof(resp->intval)) { + dev_warn(battmgr->dev, + "invalid payload length for %#x request: %zd\n", + property, payload_len); + battmgr->error = -ENODATA; + return; + } + + battmgr->error = le32_to_cpu(resp->intval.result); + if (battmgr->error) + goto out_complete; + + switch (property) { + case USB_ONLINE: + battmgr->usb.online = le32_to_cpu(resp->intval.value); + break; + case USB_VOLT_NOW: + battmgr->usb.voltage_now = le32_to_cpu(resp->intval.value); + break; + case USB_VOLT_MAX: + battmgr->usb.voltage_max = le32_to_cpu(resp->intval.value); + break; + case USB_CURR_NOW: + battmgr->usb.current_now = le32_to_cpu(resp->intval.value); + break; + case USB_CURR_MAX: + battmgr->usb.current_max = le32_to_cpu(resp->intval.value); + break; + case USB_INPUT_CURR_LIMIT: + battmgr->usb.current_limit = le32_to_cpu(resp->intval.value); + break; + case USB_TYPE: + battmgr->usb.usb_type = le32_to_cpu(resp->intval.value); + break; + default: + dev_warn(battmgr->dev, "unknown property %#x\n", property); + break; + } + break; + case BATTMGR_WLS_PROPERTY_GET: + property = le32_to_cpu(resp->intval.property); + if (payload_len != sizeof(resp->intval)) { + dev_warn(battmgr->dev, + "invalid payload length for %#x request: %zd\n", + property, payload_len); + battmgr->error = -ENODATA; + return; + } + + battmgr->error = le32_to_cpu(resp->intval.result); + if (battmgr->error) + goto out_complete; + + switch (property) { + case WLS_ONLINE: + battmgr->wireless.online = le32_to_cpu(resp->intval.value); + break; + case WLS_VOLT_NOW: + battmgr->wireless.voltage_now = le32_to_cpu(resp->intval.value); + break; + case WLS_VOLT_MAX: + battmgr->wireless.voltage_max = le32_to_cpu(resp->intval.value); + break; + case WLS_CURR_NOW: + battmgr->wireless.current_now = le32_to_cpu(resp->intval.value); + break; + case WLS_CURR_MAX: + battmgr->wireless.current_max = le32_to_cpu(resp->intval.value); + break; + default: + dev_warn(battmgr->dev, "unknown property %#x\n", property); + break; + } + break; + case BATTMGR_REQUEST_NOTIFICATION: + case BATTMGR_CHG_CTRL_LIMIT_EN: + battmgr->error = 0; + break; + default: + dev_warn(battmgr->dev, "unknown message %#x\n", opcode); + break; + } + +out_complete: + complete(&battmgr->ack); +} + +static void qcom_battmgr_callback(const void *data, size_t len, void *priv) +{ + const struct pmic_glink_hdr *hdr = data; + struct qcom_battmgr *battmgr = priv; + unsigned int opcode = le32_to_cpu(hdr->opcode); + + if (opcode == BATTMGR_NOTIFICATION) + qcom_battmgr_notification(battmgr, data, len); + else if (battmgr->variant == QCOM_BATTMGR_SC8280XP || + battmgr->variant == QCOM_BATTMGR_X1E80100) + qcom_battmgr_sc8280xp_callback(battmgr, data, len); + else + qcom_battmgr_sm8350_callback(battmgr, data, len); +} + +static void qcom_battmgr_enable_worker(struct work_struct *work) +{ + struct qcom_battmgr *battmgr = container_of(work, struct qcom_battmgr, enable_work); + struct qcom_battmgr_enable_request req = { + .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR), + .hdr.type = cpu_to_le32(PMIC_GLINK_NOTIFY), + .hdr.opcode = cpu_to_le32(BATTMGR_REQUEST_NOTIFICATION), + }; + int ret; + + ret = qcom_battmgr_request(battmgr, &req, sizeof(req)); + if (ret) + dev_err(battmgr->dev, "failed to request power notifications\n"); +} + +static void qcom_battmgr_pdr_notify(void *priv, int state) +{ + struct qcom_battmgr *battmgr = priv; + + if (state == SERVREG_SERVICE_STATE_UP) { + battmgr->service_up = true; + schedule_work(&battmgr->enable_work); + } else { + battmgr->service_up = false; + } +} + +static const struct of_device_id qcom_battmgr_of_variants[] = { + { .compatible = "qcom,sc8180x-pmic-glink", .data = (void *)QCOM_BATTMGR_SC8280XP }, + { .compatible = "qcom,sc8280xp-pmic-glink", .data = (void *)QCOM_BATTMGR_SC8280XP }, + { .compatible = "qcom,sm8550-pmic-glink", .data = (void *)QCOM_BATTMGR_SM8550 }, + { .compatible = "qcom,x1e80100-pmic-glink", .data = (void *)QCOM_BATTMGR_X1E80100 }, + /* Unmatched devices falls back to QCOM_BATTMGR_SM8350 */ + {} +}; + +static char *qcom_battmgr_battery[] = { "battery" }; + +static int qcom_battmgr_probe(struct auxiliary_device *adev, + const struct auxiliary_device_id *id) +{ + const struct power_supply_desc *psy_desc; + struct power_supply_config psy_cfg_supply = {}; + struct power_supply_config psy_cfg = {}; + const struct of_device_id *match; + struct qcom_battmgr *battmgr; + struct device *dev = &adev->dev; + int ret; + + battmgr = devm_kzalloc(dev, sizeof(*battmgr), GFP_KERNEL); + if (!battmgr) + return -ENOMEM; + + battmgr->dev = dev; + + psy_cfg.drv_data = battmgr; + psy_cfg.fwnode = dev_fwnode(&adev->dev); + + psy_cfg_supply.drv_data = battmgr; + psy_cfg_supply.fwnode = dev_fwnode(&adev->dev); + psy_cfg_supply.supplied_to = qcom_battmgr_battery; + psy_cfg_supply.num_supplicants = 1; + + INIT_WORK(&battmgr->enable_work, qcom_battmgr_enable_worker); + mutex_init(&battmgr->lock); + init_completion(&battmgr->ack); + + match = of_match_device(qcom_battmgr_of_variants, dev->parent); + if (match) + battmgr->variant = (unsigned long)match->data; + else + battmgr->variant = QCOM_BATTMGR_SM8350; + + ret = qcom_battmgr_charge_control_thresholds_init(battmgr); + if (ret < 0) + return dev_err_probe(dev, ret, + "failed to init battery charge control thresholds\n"); + + if (battmgr->variant == QCOM_BATTMGR_SC8280XP || + battmgr->variant == QCOM_BATTMGR_X1E80100) { + if (battmgr->variant == QCOM_BATTMGR_X1E80100) + psy_desc = &x1e80100_bat_psy_desc; + else + psy_desc = &sc8280xp_bat_psy_desc; + + battmgr->bat_psy = devm_power_supply_register(dev, psy_desc, &psy_cfg); + if (IS_ERR(battmgr->bat_psy)) + return dev_err_probe(dev, PTR_ERR(battmgr->bat_psy), + "failed to register battery power supply\n"); + + battmgr->ac_psy = devm_power_supply_register(dev, &sc8280xp_ac_psy_desc, &psy_cfg_supply); + if (IS_ERR(battmgr->ac_psy)) + return dev_err_probe(dev, PTR_ERR(battmgr->ac_psy), + "failed to register AC power supply\n"); + + battmgr->usb_psy = devm_power_supply_register(dev, &sc8280xp_usb_psy_desc, &psy_cfg_supply); + if (IS_ERR(battmgr->usb_psy)) + return dev_err_probe(dev, PTR_ERR(battmgr->usb_psy), + "failed to register USB power supply\n"); + + battmgr->wls_psy = devm_power_supply_register(dev, &sc8280xp_wls_psy_desc, &psy_cfg_supply); + if (IS_ERR(battmgr->wls_psy)) + return dev_err_probe(dev, PTR_ERR(battmgr->wls_psy), + "failed to register wireless charing power supply\n"); + } else { + if (battmgr->variant == QCOM_BATTMGR_SM8550) + psy_desc = &sm8550_bat_psy_desc; + else + psy_desc = &sm8350_bat_psy_desc; + + battmgr->bat_psy = devm_power_supply_register(dev, psy_desc, &psy_cfg); + if (IS_ERR(battmgr->bat_psy)) + return dev_err_probe(dev, PTR_ERR(battmgr->bat_psy), + "failed to register battery power supply\n"); + + battmgr->usb_psy = devm_power_supply_register(dev, &sm8350_usb_psy_desc, &psy_cfg_supply); + if (IS_ERR(battmgr->usb_psy)) + return dev_err_probe(dev, PTR_ERR(battmgr->usb_psy), + "failed to register USB power supply\n"); + + battmgr->wls_psy = devm_power_supply_register(dev, &sm8350_wls_psy_desc, &psy_cfg_supply); + if (IS_ERR(battmgr->wls_psy)) + return dev_err_probe(dev, PTR_ERR(battmgr->wls_psy), + "failed to register wireless charing power supply\n"); + } + + battmgr->client = devm_pmic_glink_client_alloc(dev, PMIC_GLINK_OWNER_BATTMGR, + qcom_battmgr_callback, + qcom_battmgr_pdr_notify, + battmgr); + if (IS_ERR(battmgr->client)) + return PTR_ERR(battmgr->client); + + pmic_glink_client_register(battmgr->client); + + return 0; +} + +static const struct auxiliary_device_id qcom_battmgr_id_table[] = { + { .name = "pmic_glink.power-supply", }, + {}, +}; +MODULE_DEVICE_TABLE(auxiliary, qcom_battmgr_id_table); + +static struct auxiliary_driver qcom_battmgr_driver = { + .name = "pmic_glink_power_supply", + .probe = qcom_battmgr_probe, + .id_table = qcom_battmgr_id_table, +}; + +module_auxiliary_driver(qcom_battmgr_driver); + +MODULE_DESCRIPTION("Qualcomm PMIC GLINK battery manager driver"); +MODULE_LICENSE("GPL"); |