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kernel_samsung_sm7125/drivers/power/supply/qcom/smb138x-charger.c

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/* Copyright (c) 2016-2017 The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#define pr_fmt(fmt) "SMB138X: %s: " fmt, __func__
#include <linux/device.h>
#include <linux/iio/consumer.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/platform_device.h>
#include <linux/power_supply.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/qpnp/qpnp-revid.h>
#include "smb-reg.h"
#include "smb-lib.h"
#include "storm-watch.h"
#include <linux/pmic-voter.h>
#define SMB138X_DEFAULT_FCC_UA 1000000
#define SMB138X_DEFAULT_ICL_UA 1500000
/* Registers that are not common to be mentioned in smb-reg.h */
#define SMB2CHG_MISC_ENG_SDCDC_CFG2 (MISC_BASE + 0xC1)
#define ENG_SDCDC_SEL_OOB_VTH_BIT BIT(0)
#define SMB2CHG_MISC_ENG_SDCDC_CFG6 (MISC_BASE + 0xC5)
#define DEAD_TIME_MASK GENMASK(7, 4)
#define HIGH_DEAD_TIME_MASK GENMASK(7, 4)
#define SMB2CHG_DC_TM_SREFGEN (DCIN_BASE + 0xE2)
#define STACKED_DIODE_EN_BIT BIT(2)
#define TDIE_AVG_COUNT 10
#define MAX_SPEED_READING_TIMES 5
enum {
OOB_COMP_WA_BIT = BIT(0),
};
static struct smb_params v1_params = {
.fcc = {
.name = "fast charge current",
.reg = FAST_CHARGE_CURRENT_CFG_REG,
.min_u = 0,
.max_u = 6000000,
.step_u = 25000,
},
.fv = {
.name = "float voltage",
.reg = FLOAT_VOLTAGE_CFG_REG,
.min_u = 2450000,
.max_u = 4950000,
.step_u = 10000,
},
.usb_icl = {
.name = "usb input current limit",
.reg = USBIN_CURRENT_LIMIT_CFG_REG,
.min_u = 0,
.max_u = 6000000,
.step_u = 25000,
},
.dc_icl = {
.name = "dc input current limit",
.reg = DCIN_CURRENT_LIMIT_CFG_REG,
.min_u = 0,
.max_u = 6000000,
.step_u = 25000,
},
.freq_buck = {
.name = "buck switching frequency",
.reg = CFG_BUCKBOOST_FREQ_SELECT_BUCK_REG,
.min_u = 500,
.max_u = 2000,
.step_u = 100,
},
};
struct smb_dt_props {
bool suspend_input;
int fcc_ua;
int usb_icl_ua;
int dc_icl_ua;
int chg_temp_max_mdegc;
int connector_temp_max_mdegc;
int pl_mode;
};
struct smb138x {
struct smb_charger chg;
struct smb_dt_props dt;
struct power_supply *parallel_psy;
u32 wa_flags;
};
static int __debug_mask;
module_param_named(
debug_mask, __debug_mask, int, 0600
);
static irqreturn_t smb138x_handle_slave_chg_state_change(int irq, void *data)
{
struct smb_irq_data *irq_data = data;
struct smb138x *chip = irq_data->parent_data;
if (chip->parallel_psy)
power_supply_changed(chip->parallel_psy);
return IRQ_HANDLED;
}
static int smb138x_get_prop_charger_temp(struct smb138x *chip,
union power_supply_propval *val)
{
union power_supply_propval pval;
int rc = 0, avg = 0, i;
struct smb_charger *chg = &chip->chg;
int die_avg_count;
if (chg->temp_speed_reading_count < MAX_SPEED_READING_TIMES) {
chg->temp_speed_reading_count++;
die_avg_count = 1;
} else {
die_avg_count = TDIE_AVG_COUNT;
}
for (i = 0; i < die_avg_count; i++) {
pval.intval = 0;
rc = smblib_get_prop_charger_temp(chg, &pval);
if (rc < 0) {
pr_err("Couldnt read chg temp at %dth iteration rc = %d\n",
i + 1, rc);
return rc;
}
avg += pval.intval;
}
val->intval = avg / die_avg_count;
return rc;
}
static int smb138x_parse_dt(struct smb138x *chip)
{
struct smb_charger *chg = &chip->chg;
struct device_node *node = chg->dev->of_node;
int rc;
if (!node) {
pr_err("device tree node missing\n");
return -EINVAL;
}
rc = of_property_read_u32(node,
"qcom,parallel-mode", &chip->dt.pl_mode);
if (rc < 0)
chip->dt.pl_mode = POWER_SUPPLY_PL_USBMID_USBMID;
chip->dt.suspend_input = of_property_read_bool(node,
"qcom,suspend-input");
chg->use_extcon = of_property_read_bool(node,
"qcom,use-extcon");
rc = of_property_read_u32(node,
"qcom,fcc-max-ua", &chip->dt.fcc_ua);
if (rc < 0)
chip->dt.fcc_ua = SMB138X_DEFAULT_FCC_UA;
rc = of_property_read_u32(node,
"qcom,usb-icl-ua", &chip->dt.usb_icl_ua);
if (rc < 0)
chip->dt.usb_icl_ua = SMB138X_DEFAULT_ICL_UA;
rc = of_property_read_u32(node,
"qcom,dc-icl-ua", &chip->dt.dc_icl_ua);
if (rc < 0)
chip->dt.dc_icl_ua = SMB138X_DEFAULT_ICL_UA;
rc = of_property_read_u32(node,
"qcom,charger-temp-max-mdegc",
&chip->dt.chg_temp_max_mdegc);
if (rc < 0)
chip->dt.chg_temp_max_mdegc = 80000;
rc = of_property_read_u32(node,
"qcom,connector-temp-max-mdegc",
&chip->dt.connector_temp_max_mdegc);
if (rc < 0)
chip->dt.connector_temp_max_mdegc = 105000;
return 0;
}
/************************
* USB PSY REGISTRATION *
************************/
static enum power_supply_property smb138x_usb_props[] = {
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_ONLINE,
POWER_SUPPLY_PROP_VOLTAGE_MIN,
POWER_SUPPLY_PROP_VOLTAGE_MAX,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CURRENT_MAX,
POWER_SUPPLY_PROP_TYPE,
POWER_SUPPLY_PROP_TYPEC_MODE,
POWER_SUPPLY_PROP_TYPEC_POWER_ROLE,
POWER_SUPPLY_PROP_TYPEC_CC_ORIENTATION,
POWER_SUPPLY_PROP_SDP_CURRENT_MAX,
};
static int smb138x_usb_get_prop(struct power_supply *psy,
enum power_supply_property prop,
union power_supply_propval *val)
{
struct smb138x *chip = power_supply_get_drvdata(psy);
struct smb_charger *chg = &chip->chg;
int rc = 0;
switch (prop) {
case POWER_SUPPLY_PROP_PRESENT:
rc = smblib_get_prop_usb_present(chg, val);
break;
case POWER_SUPPLY_PROP_ONLINE:
rc = smblib_get_prop_usb_online(chg, val);
break;
case POWER_SUPPLY_PROP_VOLTAGE_MIN:
val->intval = chg->voltage_min_uv;
break;
case POWER_SUPPLY_PROP_VOLTAGE_MAX:
val->intval = chg->voltage_max_uv;
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
rc = smblib_get_prop_usb_voltage_now(chg, val);
break;
case POWER_SUPPLY_PROP_CURRENT_MAX:
val->intval = get_effective_result(chg->usb_icl_votable);
break;
case POWER_SUPPLY_PROP_TYPE:
val->intval = chg->usb_psy_desc.type;
break;
case POWER_SUPPLY_PROP_TYPEC_MODE:
val->intval = chg->typec_mode;
break;
case POWER_SUPPLY_PROP_TYPEC_POWER_ROLE:
rc = smblib_get_prop_typec_power_role(chg, val);
break;
case POWER_SUPPLY_PROP_TYPEC_CC_ORIENTATION:
rc = smblib_get_prop_typec_cc_orientation(chg, val);
break;
case POWER_SUPPLY_PROP_SDP_CURRENT_MAX:
val->intval = get_client_vote(chg->usb_icl_votable,
USB_PSY_VOTER);
break;
default:
pr_err("get prop %d is not supported\n", prop);
return -EINVAL;
}
if (rc < 0) {
pr_debug("Couldn't get prop %d rc = %d\n", prop, rc);
return -ENODATA;
}
return rc;
}
static int smb138x_usb_set_prop(struct power_supply *psy,
enum power_supply_property prop,
const union power_supply_propval *val)
{
struct smb138x *chip = power_supply_get_drvdata(psy);
struct smb_charger *chg = &chip->chg;
int rc = 0;
switch (prop) {
case POWER_SUPPLY_PROP_TYPEC_POWER_ROLE:
rc = smblib_set_prop_typec_power_role(chg, val);
break;
case POWER_SUPPLY_PROP_SDP_CURRENT_MAX:
rc = smblib_set_prop_sdp_current_max(chg, val);
break;
default:
pr_err("set prop %d is not supported\n", prop);
return -EINVAL;
}
return rc;
}
static int smb138x_usb_prop_is_writeable(struct power_supply *psy,
enum power_supply_property prop)
{
return 0;
}
static int smb138x_init_usb_psy(struct smb138x *chip)
{
struct power_supply_config usb_cfg = {};
struct smb_charger *chg = &chip->chg;
chg->usb_psy_desc.name = "usb";
chg->usb_psy_desc.type = POWER_SUPPLY_TYPE_UNKNOWN;
chg->usb_psy_desc.properties = smb138x_usb_props;
chg->usb_psy_desc.num_properties = ARRAY_SIZE(smb138x_usb_props);
chg->usb_psy_desc.get_property = smb138x_usb_get_prop;
chg->usb_psy_desc.set_property = smb138x_usb_set_prop;
chg->usb_psy_desc.property_is_writeable = smb138x_usb_prop_is_writeable;
usb_cfg.drv_data = chip;
usb_cfg.of_node = chg->dev->of_node;
chg->usb_psy = devm_power_supply_register(chg->dev,
&chg->usb_psy_desc,
&usb_cfg);
if (IS_ERR(chg->usb_psy)) {
pr_err("Couldn't register USB power supply\n");
return PTR_ERR(chg->usb_psy);
}
return 0;
}
/*************************
* BATT PSY REGISTRATION *
*************************/
static enum power_supply_property smb138x_batt_props[] = {
POWER_SUPPLY_PROP_INPUT_SUSPEND,
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_CHARGE_TYPE,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_CHARGER_TEMP,
POWER_SUPPLY_PROP_CHARGER_TEMP_MAX,
POWER_SUPPLY_PROP_SET_SHIP_MODE,
};
static int smb138x_batt_get_prop(struct power_supply *psy,
enum power_supply_property prop,
union power_supply_propval *val)
{
struct smb138x *chip = power_supply_get_drvdata(psy);
struct smb_charger *chg = &chip->chg;
int rc = 0;
switch (prop) {
case POWER_SUPPLY_PROP_STATUS:
rc = smblib_get_prop_batt_status(chg, val);
break;
case POWER_SUPPLY_PROP_HEALTH:
rc = smblib_get_prop_batt_health(chg, val);
break;
case POWER_SUPPLY_PROP_PRESENT:
rc = smblib_get_prop_batt_present(chg, val);
break;
case POWER_SUPPLY_PROP_INPUT_SUSPEND:
rc = smblib_get_prop_input_suspend(chg, val);
break;
case POWER_SUPPLY_PROP_CHARGE_TYPE:
rc = smblib_get_prop_batt_charge_type(chg, val);
break;
case POWER_SUPPLY_PROP_CAPACITY:
rc = smblib_get_prop_batt_capacity(chg, val);
break;
case POWER_SUPPLY_PROP_CHARGER_TEMP:
rc = smb138x_get_prop_charger_temp(chip, val);
break;
case POWER_SUPPLY_PROP_CHARGER_TEMP_MAX:
rc = smblib_get_prop_charger_temp_max(chg, val);
break;
case POWER_SUPPLY_PROP_SET_SHIP_MODE:
/* Not in ship mode as long as device is active */
val->intval = 0;
break;
default:
pr_err("batt power supply get prop %d not supported\n", prop);
return -EINVAL;
}
if (rc < 0) {
pr_debug("Couldn't get prop %d rc = %d\n", prop, rc);
return -ENODATA;
}
return rc;
}
static int smb138x_batt_set_prop(struct power_supply *psy,
enum power_supply_property prop,
const union power_supply_propval *val)
{
struct smb138x *chip = power_supply_get_drvdata(psy);
struct smb_charger *chg = &chip->chg;
int rc = 0;
switch (prop) {
case POWER_SUPPLY_PROP_INPUT_SUSPEND:
rc = smblib_set_prop_input_suspend(chg, val);
break;
case POWER_SUPPLY_PROP_CAPACITY:
rc = smblib_set_prop_batt_capacity(chg, val);
break;
case POWER_SUPPLY_PROP_SET_SHIP_MODE:
/* Not in ship mode as long as the device is active */
if (!val->intval)
break;
rc = smblib_set_prop_ship_mode(chg, val);
break;
default:
pr_err("batt power supply set prop %d not supported\n", prop);
return -EINVAL;
}
return rc;
}
static int smb138x_batt_prop_is_writeable(struct power_supply *psy,
enum power_supply_property prop)
{
switch (prop) {
case POWER_SUPPLY_PROP_INPUT_SUSPEND:
case POWER_SUPPLY_PROP_CAPACITY:
return 1;
default:
break;
}
return 0;
}
static const struct power_supply_desc batt_psy_desc = {
.name = "battery",
.type = POWER_SUPPLY_TYPE_BATTERY,
.properties = smb138x_batt_props,
.num_properties = ARRAY_SIZE(smb138x_batt_props),
.get_property = smb138x_batt_get_prop,
.set_property = smb138x_batt_set_prop,
.property_is_writeable = smb138x_batt_prop_is_writeable,
};
static int smb138x_init_batt_psy(struct smb138x *chip)
{
struct power_supply_config batt_cfg = {};
struct smb_charger *chg = &chip->chg;
int rc = 0;
batt_cfg.drv_data = chip;
batt_cfg.of_node = chg->dev->of_node;
chg->batt_psy = devm_power_supply_register(chg->dev,
&batt_psy_desc,
&batt_cfg);
if (IS_ERR(chg->batt_psy)) {
pr_err("Couldn't register battery power supply\n");
return PTR_ERR(chg->batt_psy);
}
return rc;
}
/*****************************
* PARALLEL PSY REGISTRATION *
*****************************/
static int smb138x_get_prop_connector_health(struct smb138x *chip)
{
struct smb_charger *chg = &chip->chg;
int rc, lb_mdegc, ub_mdegc, rst_mdegc, connector_mdegc;
if (!chg->iio.connector_temp_chan ||
PTR_ERR(chg->iio.connector_temp_chan) == -EPROBE_DEFER)
chg->iio.connector_temp_chan = iio_channel_get(chg->dev,
"connector_temp");
if (IS_ERR(chg->iio.connector_temp_chan))
return POWER_SUPPLY_HEALTH_UNKNOWN;
rc = iio_read_channel_processed(chg->iio.connector_temp_thr1_chan,
&lb_mdegc);
if (rc < 0) {
pr_err("Couldn't read connector lower bound rc=%d\n", rc);
return POWER_SUPPLY_HEALTH_UNKNOWN;
}
rc = iio_read_channel_processed(chg->iio.connector_temp_thr2_chan,
&ub_mdegc);
if (rc < 0) {
pr_err("Couldn't read connector upper bound rc=%d\n", rc);
return POWER_SUPPLY_HEALTH_UNKNOWN;
}
rc = iio_read_channel_processed(chg->iio.connector_temp_thr3_chan,
&rst_mdegc);
if (rc < 0) {
pr_err("Couldn't read connector reset bound rc=%d\n", rc);
return POWER_SUPPLY_HEALTH_UNKNOWN;
}
rc = iio_read_channel_processed(chg->iio.connector_temp_chan,
&connector_mdegc);
if (rc < 0) {
pr_err("Couldn't read connector temperature rc=%d\n", rc);
return POWER_SUPPLY_HEALTH_UNKNOWN;
}
if (connector_mdegc < lb_mdegc)
return POWER_SUPPLY_HEALTH_COOL;
else if (connector_mdegc < ub_mdegc)
return POWER_SUPPLY_HEALTH_WARM;
else if (connector_mdegc < rst_mdegc)
return POWER_SUPPLY_HEALTH_HOT;
return POWER_SUPPLY_HEALTH_OVERHEAT;
}
static enum power_supply_property smb138x_parallel_props[] = {
POWER_SUPPLY_PROP_CHARGE_TYPE,
POWER_SUPPLY_PROP_CHARGING_ENABLED,
POWER_SUPPLY_PROP_PIN_ENABLED,
POWER_SUPPLY_PROP_INPUT_SUSPEND,
POWER_SUPPLY_PROP_INPUT_CURRENT_LIMITED,
POWER_SUPPLY_PROP_CURRENT_MAX,
POWER_SUPPLY_PROP_VOLTAGE_MAX,
POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CHARGER_TEMP,
POWER_SUPPLY_PROP_CHARGER_TEMP_MAX,
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_PARALLEL_MODE,
POWER_SUPPLY_PROP_CONNECTOR_HEALTH,
POWER_SUPPLY_PROP_SET_SHIP_MODE,
};
static int smb138x_parallel_get_prop(struct power_supply *psy,
enum power_supply_property prop,
union power_supply_propval *val)
{
struct smb138x *chip = power_supply_get_drvdata(psy);
struct smb_charger *chg = &chip->chg;
int rc = 0;
u8 temp;
switch (prop) {
case POWER_SUPPLY_PROP_CHARGE_TYPE:
rc = smblib_get_prop_batt_charge_type(chg, val);
break;
case POWER_SUPPLY_PROP_CHARGING_ENABLED:
rc = smblib_read(chg, BATTERY_CHARGER_STATUS_5_REG,
&temp);
if (rc >= 0)
val->intval = (bool)(temp & CHARGING_ENABLE_BIT);
break;
case POWER_SUPPLY_PROP_PIN_ENABLED:
rc = smblib_read(chg, BATTERY_CHARGER_STATUS_5_REG,
&temp);
if (rc >= 0)
val->intval = !(temp & DISABLE_CHARGING_BIT);
break;
case POWER_SUPPLY_PROP_INPUT_SUSPEND:
rc = smblib_get_usb_suspend(chg, &val->intval);
break;
case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMITED:
if ((chip->dt.pl_mode == POWER_SUPPLY_PL_USBIN_USBIN)
|| (chip->dt.pl_mode == POWER_SUPPLY_PL_USBIN_USBIN_EXT))
rc = smblib_get_prop_input_current_limited(chg, val);
else
val->intval = 0;
break;
case POWER_SUPPLY_PROP_CURRENT_MAX:
if ((chip->dt.pl_mode == POWER_SUPPLY_PL_USBIN_USBIN)
|| (chip->dt.pl_mode == POWER_SUPPLY_PL_USBIN_USBIN_EXT))
rc = smblib_get_charge_param(chg, &chg->param.usb_icl,
&val->intval);
else
val->intval = 0;
break;
case POWER_SUPPLY_PROP_VOLTAGE_MAX:
rc = smblib_get_charge_param(chg, &chg->param.fv, &val->intval);
break;
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
rc = smblib_get_charge_param(chg, &chg->param.fcc,
&val->intval);
break;
case POWER_SUPPLY_PROP_CURRENT_NOW:
rc = smblib_get_prop_slave_current_now(chg, val);
break;
case POWER_SUPPLY_PROP_CHARGER_TEMP:
rc = smb138x_get_prop_charger_temp(chip, val);
break;
case POWER_SUPPLY_PROP_CHARGER_TEMP_MAX:
rc = smblib_get_prop_charger_temp_max(chg, val);
break;
case POWER_SUPPLY_PROP_MODEL_NAME:
val->strval = "smb138x";
break;
case POWER_SUPPLY_PROP_PARALLEL_MODE:
val->intval = chip->dt.pl_mode;
break;
case POWER_SUPPLY_PROP_CONNECTOR_HEALTH:
val->intval = smb138x_get_prop_connector_health(chip);
break;
case POWER_SUPPLY_PROP_SET_SHIP_MODE:
/* Not in ship mode as long as device is active */
val->intval = 0;
break;
default:
pr_err("parallel power supply get prop %d not supported\n",
prop);
return -EINVAL;
}
if (rc < 0) {
pr_debug("Couldn't get prop %d rc = %d\n", prop, rc);
return -ENODATA;
}
return rc;
}
static int smb138x_set_parallel_suspend(struct smb138x *chip, bool suspend)
{
struct smb_charger *chg = &chip->chg;
int rc = 0;
rc = smblib_masked_write(chg, WD_CFG_REG, WDOG_TIMER_EN_BIT,
suspend ? 0 : WDOG_TIMER_EN_BIT);
if (rc < 0) {
pr_err("Couldn't %s watchdog rc=%d\n",
suspend ? "disable" : "enable", rc);
suspend = true;
}
rc = smblib_masked_write(chg, USBIN_CMD_IL_REG, USBIN_SUSPEND_BIT,
suspend ? USBIN_SUSPEND_BIT : 0);
if (rc < 0) {
pr_err("Couldn't %s parallel charger rc=%d\n",
suspend ? "suspend" : "resume", rc);
return rc;
}
return rc;
}
static int smb138x_parallel_set_prop(struct power_supply *psy,
enum power_supply_property prop,
const union power_supply_propval *val)
{
struct smb138x *chip = power_supply_get_drvdata(psy);
struct smb_charger *chg = &chip->chg;
int rc = 0;
switch (prop) {
case POWER_SUPPLY_PROP_INPUT_SUSPEND:
rc = smb138x_set_parallel_suspend(chip, (bool)val->intval);
break;
case POWER_SUPPLY_PROP_CURRENT_MAX:
if ((chip->dt.pl_mode == POWER_SUPPLY_PL_USBIN_USBIN)
|| (chip->dt.pl_mode == POWER_SUPPLY_PL_USBIN_USBIN_EXT))
rc = smblib_set_charge_param(chg, &chg->param.usb_icl,
val->intval);
break;
case POWER_SUPPLY_PROP_VOLTAGE_MAX:
rc = smblib_set_charge_param(chg, &chg->param.fv, val->intval);
break;
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
rc = smblib_set_charge_param(chg, &chg->param.fcc, val->intval);
break;
case POWER_SUPPLY_PROP_SET_SHIP_MODE:
/* Not in ship mode as long as the device is active */
if (!val->intval)
break;
rc = smblib_set_prop_ship_mode(chg, val);
break;
default:
pr_debug("parallel power supply set prop %d not supported\n",
prop);
return -EINVAL;
}
return rc;
}
static int smb138x_parallel_prop_is_writeable(struct power_supply *psy,
enum power_supply_property prop)
{
return 0;
}
static const struct power_supply_desc parallel_psy_desc = {
.name = "parallel",
.type = POWER_SUPPLY_TYPE_PARALLEL,
.properties = smb138x_parallel_props,
.num_properties = ARRAY_SIZE(smb138x_parallel_props),
.get_property = smb138x_parallel_get_prop,
.set_property = smb138x_parallel_set_prop,
.property_is_writeable = smb138x_parallel_prop_is_writeable,
};
static int smb138x_init_parallel_psy(struct smb138x *chip)
{
struct power_supply_config parallel_cfg = {};
struct smb_charger *chg = &chip->chg;
parallel_cfg.drv_data = chip;
parallel_cfg.of_node = chg->dev->of_node;
chip->parallel_psy = devm_power_supply_register(chg->dev,
&parallel_psy_desc,
&parallel_cfg);
if (IS_ERR(chip->parallel_psy)) {
pr_err("Couldn't register parallel power supply\n");
return PTR_ERR(chip->parallel_psy);
}
return 0;
}
/******************************
* VBUS REGULATOR REGISTRATION *
******************************/
static struct regulator_ops smb138x_vbus_reg_ops = {
.enable = smblib_vbus_regulator_enable,
.disable = smblib_vbus_regulator_disable,
.is_enabled = smblib_vbus_regulator_is_enabled,
};
static int smb138x_init_vbus_regulator(struct smb138x *chip)
{
struct smb_charger *chg = &chip->chg;
struct regulator_config cfg = {};
int rc = 0;
chg->vbus_vreg = devm_kzalloc(chg->dev, sizeof(*chg->vbus_vreg),
GFP_KERNEL);
if (!chg->vbus_vreg)
return -ENOMEM;
cfg.dev = chg->dev;
cfg.driver_data = chip;
chg->vbus_vreg->rdesc.owner = THIS_MODULE;
chg->vbus_vreg->rdesc.type = REGULATOR_VOLTAGE;
chg->vbus_vreg->rdesc.ops = &smb138x_vbus_reg_ops;
chg->vbus_vreg->rdesc.of_match = "qcom,smb138x-vbus";
chg->vbus_vreg->rdesc.name = "qcom,smb138x-vbus";
chg->vbus_vreg->rdev = devm_regulator_register(chg->dev,
&chg->vbus_vreg->rdesc, &cfg);
if (IS_ERR(chg->vbus_vreg->rdev)) {
rc = PTR_ERR(chg->vbus_vreg->rdev);
chg->vbus_vreg->rdev = NULL;
if (rc != -EPROBE_DEFER)
pr_err("Couldn't register VBUS regualtor rc=%d\n", rc);
}
return rc;
}
/******************************
* VCONN REGULATOR REGISTRATION *
******************************/
static struct regulator_ops smb138x_vconn_reg_ops = {
.enable = smblib_vconn_regulator_enable,
.disable = smblib_vconn_regulator_disable,
.is_enabled = smblib_vconn_regulator_is_enabled,
};
static int smb138x_init_vconn_regulator(struct smb138x *chip)
{
struct smb_charger *chg = &chip->chg;
struct regulator_config cfg = {};
int rc = 0;
chg->vconn_vreg = devm_kzalloc(chg->dev, sizeof(*chg->vconn_vreg),
GFP_KERNEL);
if (!chg->vconn_vreg)
return -ENOMEM;
cfg.dev = chg->dev;
cfg.driver_data = chip;
chg->vconn_vreg->rdesc.owner = THIS_MODULE;
chg->vconn_vreg->rdesc.type = REGULATOR_VOLTAGE;
chg->vconn_vreg->rdesc.ops = &smb138x_vconn_reg_ops;
chg->vconn_vreg->rdesc.of_match = "qcom,smb138x-vconn";
chg->vconn_vreg->rdesc.name = "qcom,smb138x-vconn";
chg->vconn_vreg->rdev = devm_regulator_register(chg->dev,
&chg->vconn_vreg->rdesc, &cfg);
if (IS_ERR(chg->vconn_vreg->rdev)) {
rc = PTR_ERR(chg->vconn_vreg->rdev);
chg->vconn_vreg->rdev = NULL;
if (rc != -EPROBE_DEFER)
pr_err("Couldn't register VCONN regualtor rc=%d\n", rc);
}
return rc;
}
/***************************
* HARDWARE INITIALIZATION *
***************************/
#define MDEGC_3 3000
#define MDEGC_15 15000
static int smb138x_init_slave_hw(struct smb138x *chip)
{
struct smb_charger *chg = &chip->chg;
int rc;
if (chip->wa_flags & OOB_COMP_WA_BIT) {
rc = smblib_masked_write(chg, SMB2CHG_MISC_ENG_SDCDC_CFG2,
ENG_SDCDC_SEL_OOB_VTH_BIT,
ENG_SDCDC_SEL_OOB_VTH_BIT);
if (rc < 0) {
pr_err("Couldn't configure the OOB comp threshold rc = %d\n",
rc);
return rc;
}
rc = smblib_masked_write(chg, SMB2CHG_MISC_ENG_SDCDC_CFG6,
DEAD_TIME_MASK, HIGH_DEAD_TIME_MASK);
if (rc < 0) {
pr_err("Couldn't configure the sdcdc cfg 6 reg rc = %d\n",
rc);
return rc;
}
}
/* configure to a fixed 700khz freq to avoid tdie errors */
rc = smblib_set_charge_param(chg, &chg->param.freq_buck, 700);
if (rc < 0) {
pr_err("Couldn't configure 700Khz switch freq rc=%d\n", rc);
return rc;
}
/* enable watchdog bark and bite interrupts, and disable the watchdog */
rc = smblib_masked_write(chg, WD_CFG_REG, WDOG_TIMER_EN_BIT
| WDOG_TIMER_EN_ON_PLUGIN_BIT | BITE_WDOG_INT_EN_BIT
| BARK_WDOG_INT_EN_BIT,
BITE_WDOG_INT_EN_BIT | BARK_WDOG_INT_EN_BIT);
if (rc < 0) {
pr_err("Couldn't configure the watchdog rc=%d\n", rc);
return rc;
}
/* disable charging when watchdog bites */
rc = smblib_masked_write(chg, SNARL_BARK_BITE_WD_CFG_REG,
BITE_WDOG_DISABLE_CHARGING_CFG_BIT,
BITE_WDOG_DISABLE_CHARGING_CFG_BIT);
if (rc < 0) {
pr_err("Couldn't configure the watchdog bite rc=%d\n", rc);
return rc;
}
/* Disable OTG */
rc = smblib_masked_write(chg, CMD_OTG_REG, OTG_EN_BIT, 0);
if (rc < 0) {
pr_err("Couldn't disable OTG rc=%d\n", rc);
return rc;
}
/* suspend parallel charging */
rc = smb138x_set_parallel_suspend(chip, true);
if (rc < 0) {
pr_err("Couldn't suspend parallel charging rc=%d\n", rc);
return rc;
}
/* initialize FCC to 0 */
rc = smblib_set_charge_param(chg, &chg->param.fcc, 0);
if (rc < 0) {
pr_err("Couldn't set 0 FCC rc=%d\n", rc);
return rc;
}
/* enable the charging path */
rc = smblib_masked_write(chg, CHARGING_ENABLE_CMD_REG,
CHARGING_ENABLE_CMD_BIT,
CHARGING_ENABLE_CMD_BIT);
if (rc < 0) {
pr_err("Couldn't enable charging rc=%d\n", rc);
return rc;
}
/* configure charge enable for software control; active high */
rc = smblib_masked_write(chg, CHGR_CFG2_REG,
CHG_EN_POLARITY_BIT | CHG_EN_SRC_BIT, 0);
if (rc < 0) {
pr_err("Couldn't configure charge enable source rc=%d\n",
rc);
return rc;
}
/* enable parallel current sensing */
rc = smblib_masked_write(chg, CFG_REG,
VCHG_EN_CFG_BIT, VCHG_EN_CFG_BIT);
if (rc < 0) {
pr_err("Couldn't enable parallel current sensing rc=%d\n",
rc);
return rc;
}
/* enable stacked diode */
rc = smblib_write(chg, SMB2CHG_DC_TM_SREFGEN, STACKED_DIODE_EN_BIT);
if (rc < 0) {
pr_err("Couldn't enable stacked diode rc=%d\n", rc);
return rc;
}
/* initialize charger temperature threshold */
rc = iio_write_channel_processed(chg->iio.temp_max_chan,
chip->dt.chg_temp_max_mdegc);
if (rc < 0) {
pr_err("Couldn't set charger temp threshold rc=%d\n", rc);
return rc;
}
rc = iio_write_channel_processed(chg->iio.connector_temp_thr1_chan,
chip->dt.connector_temp_max_mdegc);
if (rc < 0) {
pr_err("Couldn't set connector temp threshold1 rc=%d\n", rc);
return rc;
}
rc = iio_write_channel_processed(chg->iio.connector_temp_thr2_chan,
chip->dt.connector_temp_max_mdegc + MDEGC_3);
if (rc < 0) {
pr_err("Couldn't set connector temp threshold2 rc=%d\n", rc);
return rc;
}
rc = iio_write_channel_processed(chg->iio.connector_temp_thr3_chan,
chip->dt.connector_temp_max_mdegc + MDEGC_15);
if (rc < 0) {
pr_err("Couldn't set connector temp threshold3 rc=%d\n", rc);
return rc;
}
/* increase the concurrent mode threshold */
rc = smblib_masked_write(chg, ENG_SDCDC_CFG7_REG,
ENG_SDCDC_BST_SET_POINT_MASK, 0);
if (rc < 0) {
pr_err("Couldn't set concurrent mode threshold\n");
return rc;
}
return 0;
}
static int smb138x_init_hw(struct smb138x *chip)
{
struct smb_charger *chg = &chip->chg;
int rc = 0;
/* votes must be cast before configuring software control */
vote(chg->dc_suspend_votable,
DEFAULT_VOTER, chip->dt.suspend_input, 0);
vote(chg->fcc_votable,
DEFAULT_VOTER, true, chip->dt.fcc_ua);
vote(chg->usb_icl_votable,
DCP_VOTER, true, chip->dt.usb_icl_ua);
vote(chg->dc_icl_votable,
DEFAULT_VOTER, true, chip->dt.dc_icl_ua);
chg->dcp_icl_ua = chip->dt.usb_icl_ua;
/* Disable OTG */
rc = smblib_masked_write(chg, CMD_OTG_REG, OTG_EN_BIT, 0);
if (rc < 0) {
pr_err("Couldn't disable OTG rc=%d\n", rc);
return rc;
}
/* Unsuspend USB input */
rc = smblib_masked_write(chg, USBIN_CMD_IL_REG, USBIN_SUSPEND_BIT, 0);
if (rc < 0) {
pr_err("Couldn't unsuspend USB, rc=%d\n", rc);
return rc;
}
/* configure to a fixed 700khz freq to avoid tdie errors */
rc = smblib_set_charge_param(chg, &chg->param.freq_buck, 700);
if (rc < 0) {
pr_err("Couldn't configure 700Khz switch freq rc=%d\n", rc);
return rc;
}
/* configure charge enable for software control; active high */
rc = smblib_masked_write(chg, CHGR_CFG2_REG,
CHG_EN_POLARITY_BIT | CHG_EN_SRC_BIT, 0);
if (rc < 0) {
pr_err("Couldn't configure charge enable source rc=%d\n", rc);
return rc;
}
/* enable the charging path */
rc = vote(chg->chg_disable_votable, DEFAULT_VOTER, false, 0);
if (rc < 0) {
pr_err("Couldn't enable charging rc=%d\n", rc);
return rc;
}
/*
* trigger the usb-typec-change interrupt only when the CC state
* changes, or there was a VBUS error
*/
rc = smblib_write(chg, TYPE_C_INTRPT_ENB_REG,
TYPEC_CCSTATE_CHANGE_INT_EN_BIT
| TYPEC_VBUS_ERROR_INT_EN_BIT);
if (rc < 0) {
pr_err("Couldn't configure Type-C interrupts rc=%d\n", rc);
return rc;
}
/* configure VCONN for software control */
rc = smblib_masked_write(chg, TYPE_C_INTRPT_ENB_SOFTWARE_CTRL_REG,
VCONN_EN_SRC_BIT | VCONN_EN_VALUE_BIT,
VCONN_EN_SRC_BIT);
if (rc < 0) {
pr_err("Couldn't configure VCONN for SW control rc=%d\n", rc);
return rc;
}
/* configure VBUS for software control */
rc = smblib_masked_write(chg, OTG_CFG_REG, OTG_EN_SRC_CFG_BIT, 0);
if (rc < 0) {
pr_err("Couldn't configure VBUS for SW control rc=%d\n", rc);
return rc;
}
/* configure power role for dual-role */
rc = smblib_masked_write(chg, TYPE_C_INTRPT_ENB_SOFTWARE_CTRL_REG,
TYPEC_POWER_ROLE_CMD_MASK, 0);
if (rc < 0) {
pr_err("Couldn't configure power role for DRP rc=%d\n", rc);
return rc;
}
if (chip->wa_flags & OOB_COMP_WA_BIT) {
rc = smblib_masked_write(chg, SMB2CHG_MISC_ENG_SDCDC_CFG2,
ENG_SDCDC_SEL_OOB_VTH_BIT,
ENG_SDCDC_SEL_OOB_VTH_BIT);
if (rc < 0) {
pr_err("Couldn't configure the OOB comp threshold rc = %d\n",
rc);
return rc;
}
rc = smblib_masked_write(chg, SMB2CHG_MISC_ENG_SDCDC_CFG6,
DEAD_TIME_MASK, HIGH_DEAD_TIME_MASK);
if (rc < 0) {
pr_err("Couldn't configure the sdcdc cfg 6 reg rc = %d\n",
rc);
return rc;
}
}
return rc;
}
static int smb138x_setup_wa_flags(struct smb138x *chip)
{
struct pmic_revid_data *pmic_rev_id;
struct device_node *revid_dev_node;
revid_dev_node = of_parse_phandle(chip->chg.dev->of_node,
"qcom,pmic-revid", 0);
if (!revid_dev_node) {
pr_err("Missing qcom,pmic-revid property\n");
return -EINVAL;
}
pmic_rev_id = get_revid_data(revid_dev_node);
if (IS_ERR_OR_NULL(pmic_rev_id)) {
/*
* the revid peripheral must be registered, any failure
* here only indicates that the rev-id module has not
* probed yet.
*/
return -EPROBE_DEFER;
}
switch (pmic_rev_id->pmic_subtype) {
case SMB1381_SUBTYPE:
if (pmic_rev_id->rev4 < 2) /* SMB1381 rev 1.0 */
chip->wa_flags |= OOB_COMP_WA_BIT;
break;
default:
pr_err("PMIC subtype %d not supported\n",
pmic_rev_id->pmic_subtype);
return -EINVAL;
}
return 0;
}
/****************************
* DETERMINE INITIAL STATUS *
****************************/
static irqreturn_t smb138x_handle_temperature_change(int irq, void *data)
{
struct smb_irq_data *irq_data = data;
struct smb138x *chip = irq_data->parent_data;
power_supply_changed(chip->parallel_psy);
return IRQ_HANDLED;
}
static int smb138x_determine_initial_slave_status(struct smb138x *chip)
{
struct smb_irq_data irq_data = {chip, "determine-initial-status"};
smb138x_handle_temperature_change(0, &irq_data);
return 0;
}
static int smb138x_determine_initial_status(struct smb138x *chip)
{
struct smb_irq_data irq_data = {chip, "determine-initial-status"};
smblib_handle_usb_plugin(0, &irq_data);
smblib_handle_usb_typec_change(0, &irq_data);
smblib_handle_usb_source_change(0, &irq_data);
return 0;
}
/**************************
* INTERRUPT REGISTRATION *
**************************/
static struct smb_irq_info smb138x_irqs[] = {
/* CHARGER IRQs */
[CHG_ERROR_IRQ] = {
.name = "chg-error",
.handler = smblib_handle_debug,
},
[CHG_STATE_CHANGE_IRQ] = {
.name = "chg-state-change",
.handler = smb138x_handle_slave_chg_state_change,
.wake = true,
},
[STEP_CHG_STATE_CHANGE_IRQ] = {
.name = "step-chg-state-change",
.handler = smblib_handle_debug,
},
[STEP_CHG_SOC_UPDATE_FAIL_IRQ] = {
.name = "step-chg-soc-update-fail",
.handler = smblib_handle_debug,
},
[STEP_CHG_SOC_UPDATE_REQ_IRQ] = {
.name = "step-chg-soc-update-request",
.handler = smblib_handle_debug,
},
/* OTG IRQs */
[OTG_FAIL_IRQ] = {
.name = "otg-fail",
.handler = smblib_handle_debug,
},
[OTG_OVERCURRENT_IRQ] = {
.name = "otg-overcurrent",
.handler = smblib_handle_debug,
},
[OTG_OC_DIS_SW_STS_IRQ] = {
.name = "otg-oc-dis-sw-sts",
.handler = smblib_handle_debug,
},
[TESTMODE_CHANGE_DET_IRQ] = {
.name = "testmode-change-detect",
.handler = smblib_handle_debug,
},
/* BATTERY IRQs */
[BATT_TEMP_IRQ] = {
.name = "bat-temp",
.handler = smblib_handle_batt_psy_changed,
},
[BATT_OCP_IRQ] = {
.name = "bat-ocp",
.handler = smblib_handle_batt_psy_changed,
},
[BATT_OV_IRQ] = {
.name = "bat-ov",
.handler = smblib_handle_batt_psy_changed,
},
[BATT_LOW_IRQ] = {
.name = "bat-low",
.handler = smblib_handle_batt_psy_changed,
},
[BATT_THERM_ID_MISS_IRQ] = {
.name = "bat-therm-or-id-missing",
.handler = smblib_handle_batt_psy_changed,
},
[BATT_TERM_MISS_IRQ] = {
.name = "bat-terminal-missing",
.handler = smblib_handle_batt_psy_changed,
},
/* USB INPUT IRQs */
[USBIN_COLLAPSE_IRQ] = {
.name = "usbin-collapse",
.handler = smblib_handle_debug,
},
[USBIN_LT_3P6V_IRQ] = {
.name = "usbin-lt-3p6v",
.handler = smblib_handle_debug,
},
[USBIN_UV_IRQ] = {
.name = "usbin-uv",
.handler = smblib_handle_debug,
},
[USBIN_OV_IRQ] = {
.name = "usbin-ov",
.handler = smblib_handle_debug,
},
[USBIN_PLUGIN_IRQ] = {
.name = "usbin-plugin",
.handler = smblib_handle_usb_plugin,
},
[USBIN_SRC_CHANGE_IRQ] = {
.name = "usbin-src-change",
.handler = smblib_handle_usb_source_change,
},
[USBIN_ICL_CHANGE_IRQ] = {
.name = "usbin-icl-change",
.handler = smblib_handle_debug,
},
[TYPE_C_CHANGE_IRQ] = {
.name = "type-c-change",
.handler = smblib_handle_usb_typec_change,
},
/* DC INPUT IRQs */
[DCIN_COLLAPSE_IRQ] = {
.name = "dcin-collapse",
.handler = smblib_handle_debug,
},
[DCIN_LT_3P6V_IRQ] = {
.name = "dcin-lt-3p6v",
.handler = smblib_handle_debug,
},
[DCIN_UV_IRQ] = {
.name = "dcin-uv",
.handler = smblib_handle_debug,
},
[DCIN_OV_IRQ] = {
.name = "dcin-ov",
.handler = smblib_handle_debug,
},
[DCIN_PLUGIN_IRQ] = {
.name = "dcin-plugin",
.handler = smblib_handle_debug,
},
[DIV2_EN_DG_IRQ] = {
.name = "div2-en-dg",
.handler = smblib_handle_debug,
},
[DCIN_ICL_CHANGE_IRQ] = {
.name = "dcin-icl-change",
.handler = smblib_handle_debug,
},
/* MISCELLANEOUS IRQs */
[WDOG_SNARL_IRQ] = {
.name = "wdog-snarl",
.handler = smblib_handle_debug,
},
[WDOG_BARK_IRQ] = {
.name = "wdog-bark",
.handler = smblib_handle_wdog_bark,
.wake = true,
},
[AICL_FAIL_IRQ] = {
.name = "aicl-fail",
.handler = smblib_handle_debug,
},
[AICL_DONE_IRQ] = {
.name = "aicl-done",
.handler = smblib_handle_debug,
},
[HIGH_DUTY_CYCLE_IRQ] = {
.name = "high-duty-cycle",
.handler = smblib_handle_debug,
},
[INPUT_CURRENT_LIMIT_IRQ] = {
.name = "input-current-limiting",
.handler = smblib_handle_debug,
},
[TEMPERATURE_CHANGE_IRQ] = {
.name = "temperature-change",
.handler = smb138x_handle_temperature_change,
},
[SWITCH_POWER_OK_IRQ] = {
.name = "switcher-power-ok",
.handler = smblib_handle_debug,
},
};
static int smb138x_get_irq_index_byname(const char *irq_name)
{
int i;
for (i = 0; i < ARRAY_SIZE(smb138x_irqs); i++) {
if (strcmp(smb138x_irqs[i].name, irq_name) == 0)
return i;
}
return -ENOENT;
}
static int smb138x_request_interrupt(struct smb138x *chip,
struct device_node *node,
const char *irq_name)
{
struct smb_charger *chg = &chip->chg;
int rc = 0, irq, irq_index;
struct smb_irq_data *irq_data;
irq = of_irq_get_byname(node, irq_name);
if (irq < 0) {
pr_err("Couldn't get irq %s byname\n", irq_name);
return irq;
}
irq_index = smb138x_get_irq_index_byname(irq_name);
if (irq_index < 0) {
pr_err("%s is not a defined irq\n", irq_name);
return irq_index;
}
if (!smb138x_irqs[irq_index].handler)
return 0;
irq_data = devm_kzalloc(chg->dev, sizeof(*irq_data), GFP_KERNEL);
if (!irq_data)
return -ENOMEM;
irq_data->parent_data = chip;
irq_data->name = irq_name;
irq_data->storm_data = smb138x_irqs[irq_index].storm_data;
mutex_init(&irq_data->storm_data.storm_lock);
rc = devm_request_threaded_irq(chg->dev, irq, NULL,
smb138x_irqs[irq_index].handler,
IRQF_ONESHOT, irq_name, irq_data);
if (rc < 0) {
pr_err("Couldn't request irq %d\n", irq);
return rc;
}
if (smb138x_irqs[irq_index].wake)
enable_irq_wake(irq);
return rc;
}
static int smb138x_request_interrupts(struct smb138x *chip)
{
struct smb_charger *chg = &chip->chg;
struct device_node *node = chg->dev->of_node;
struct device_node *child;
int rc = 0;
const char *name;
struct property *prop;
for_each_available_child_of_node(node, child) {
of_property_for_each_string(child, "interrupt-names",
prop, name) {
rc = smb138x_request_interrupt(chip, child, name);
if (rc < 0) {
pr_err("Couldn't request interrupt %s rc=%d\n",
name, rc);
return rc;
}
}
}
return rc;
}
/*********
* PROBE *
*********/
static int smb138x_master_probe(struct smb138x *chip)
{
struct smb_charger *chg = &chip->chg;
int rc = 0;
chg->param = v1_params;
rc = smblib_init(chg);
if (rc < 0) {
pr_err("Couldn't initialize smblib rc=%d\n", rc);
return rc;
}
rc = smb138x_parse_dt(chip);
if (rc < 0) {
pr_err("Couldn't parse device tree rc=%d\n", rc);
goto cleanup;
}
rc = smb138x_init_vbus_regulator(chip);
if (rc < 0) {
pr_err("Couldn't initialize vbus regulator rc=%d\n",
rc);
goto cleanup;
}
rc = smb138x_init_vconn_regulator(chip);
if (rc < 0) {
pr_err("Couldn't initialize vconn regulator rc=%d\n",
rc);
goto cleanup;
}
if (chg->use_extcon) {
/* extcon registration */
chg->extcon = devm_extcon_dev_allocate(chg->dev,
smblib_extcon_cable);
if (IS_ERR(chg->extcon)) {
rc = PTR_ERR(chg->extcon);
dev_err(chg->dev, "failed to allocate extcon device rc=%d\n",
rc);
goto cleanup;
}
extcon_set_mutually_exclusive(chg->extcon,
smblib_extcon_exclusive);
rc = devm_extcon_dev_register(chg->dev, chg->extcon);
if (rc < 0) {
dev_err(chg->dev, "failed to register extcon device rc=%d\n",
rc);
goto cleanup;
}
/* Support reporting polarity and speed via properties */
rc = extcon_set_property_capability(chg->extcon,
EXTCON_USB, EXTCON_PROP_USB_TYPEC_POLARITY);
rc |= extcon_set_property_capability(chg->extcon,
EXTCON_USB, EXTCON_PROP_USB_SS);
rc |= extcon_set_property_capability(chg->extcon,
EXTCON_USB_HOST,
EXTCON_PROP_USB_TYPEC_POLARITY);
rc |= extcon_set_property_capability(chg->extcon,
EXTCON_USB_HOST, EXTCON_PROP_USB_SS);
if (rc < 0) {
dev_err(chg->dev,
"failed to configure extcon capabilities\n");
goto cleanup;
}
}
rc = smb138x_init_usb_psy(chip);
if (rc < 0) {
pr_err("Couldn't initialize usb psy rc=%d\n", rc);
goto cleanup;
}
rc = smb138x_init_batt_psy(chip);
if (rc < 0) {
pr_err("Couldn't initialize batt psy rc=%d\n", rc);
goto cleanup;
}
rc = smb138x_init_hw(chip);
if (rc < 0) {
pr_err("Couldn't initialize hardware rc=%d\n", rc);
goto cleanup;
}
rc = smb138x_determine_initial_status(chip);
if (rc < 0) {
pr_err("Couldn't determine initial status rc=%d\n",
rc);
goto cleanup;
}
rc = smb138x_request_interrupts(chip);
if (rc < 0) {
pr_err("Couldn't request interrupts rc=%d\n", rc);
goto cleanup;
}
return rc;
cleanup:
smblib_deinit(chg);
return rc;
}
static int smb138x_slave_probe(struct smb138x *chip)
{
struct smb_charger *chg = &chip->chg;
int rc = 0;
chg->param = v1_params;
rc = smblib_init(chg);
if (rc < 0) {
pr_err("Couldn't initialize smblib rc=%d\n", rc);
goto cleanup;
}
chg->iio.temp_max_chan = iio_channel_get(chg->dev, "charger_temp_max");
if (IS_ERR(chg->iio.temp_max_chan)) {
rc = PTR_ERR(chg->iio.temp_max_chan);
goto cleanup;
}
chg->iio.connector_temp_thr1_chan = iio_channel_get(chg->dev,
"connector_temp_thr1");
if (IS_ERR(chg->iio.connector_temp_thr1_chan)) {
rc = PTR_ERR(chg->iio.connector_temp_thr1_chan);
goto cleanup;
}
chg->iio.connector_temp_thr2_chan = iio_channel_get(chg->dev,
"connector_temp_thr2");
if (IS_ERR(chg->iio.connector_temp_thr2_chan)) {
rc = PTR_ERR(chg->iio.connector_temp_thr2_chan);
goto cleanup;
}
chg->iio.connector_temp_thr3_chan = iio_channel_get(chg->dev,
"connector_temp_thr3");
if (IS_ERR(chg->iio.connector_temp_thr3_chan)) {
rc = PTR_ERR(chg->iio.connector_temp_thr3_chan);
goto cleanup;
}
rc = smb138x_parse_dt(chip);
if (rc < 0) {
pr_err("Couldn't parse device tree rc=%d\n", rc);
goto cleanup;
}
rc = smb138x_init_slave_hw(chip);
if (rc < 0) {
pr_err("Couldn't initialize hardware rc=%d\n", rc);
goto cleanup;
}
if ((chip->dt.pl_mode == POWER_SUPPLY_PL_USBIN_USBIN)
|| (chip->dt.pl_mode == POWER_SUPPLY_PL_USBIN_USBIN_EXT)) {
rc = smb138x_init_vbus_regulator(chip);
if (rc < 0) {
pr_err("Couldn't initialize vbus regulator rc=%d\n",
rc);
return rc;
}
}
rc = smb138x_init_parallel_psy(chip);
if (rc < 0) {
pr_err("Couldn't initialize parallel psy rc=%d\n", rc);
goto cleanup;
}
rc = smb138x_determine_initial_slave_status(chip);
if (rc < 0) {
pr_err("Couldn't determine initial status rc=%d\n", rc);
goto cleanup;
}
rc = smb138x_request_interrupts(chip);
if (rc < 0) {
pr_err("Couldn't request interrupts rc=%d\n", rc);
goto cleanup;
}
return rc;
cleanup:
smblib_deinit(chg);
if (chip->parallel_psy)
power_supply_unregister(chip->parallel_psy);
if (chg->vbus_vreg && chg->vbus_vreg->rdev)
regulator_unregister(chg->vbus_vreg->rdev);
return rc;
}
static const struct of_device_id match_table[] = {
{
.compatible = "qcom,smb138x-charger",
.data = (void *) PARALLEL_MASTER
},
{
.compatible = "qcom,smb138x-parallel-slave",
.data = (void *) PARALLEL_SLAVE
},
{ },
};
static int smb138x_probe(struct platform_device *pdev)
{
struct smb138x *chip;
const struct of_device_id *id;
int rc = 0;
chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
chip->chg.dev = &pdev->dev;
chip->chg.debug_mask = &__debug_mask;
chip->chg.irq_info = smb138x_irqs;
chip->chg.name = "SMB";
chip->chg.regmap = dev_get_regmap(chip->chg.dev->parent, NULL);
if (!chip->chg.regmap) {
pr_err("parent regmap is missing\n");
return -EINVAL;
}
id = of_match_device(of_match_ptr(match_table), chip->chg.dev);
if (!id) {
pr_err("Couldn't find a matching device\n");
return -ENODEV;
}
platform_set_drvdata(pdev, chip);
rc = smb138x_setup_wa_flags(chip);
if (rc < 0) {
if (rc != -EPROBE_DEFER)
pr_err("Couldn't setup wa flags rc = %d\n", rc);
return rc;
}
chip->chg.mode = (enum smb_mode) id->data;
switch (chip->chg.mode) {
case PARALLEL_MASTER:
rc = smb138x_master_probe(chip);
break;
case PARALLEL_SLAVE:
rc = smb138x_slave_probe(chip);
break;
default:
pr_err("Couldn't find a matching mode %d\n", chip->chg.mode);
rc = -EINVAL;
goto cleanup;
}
if (rc < 0) {
if (rc != -EPROBE_DEFER)
pr_err("Couldn't probe SMB138X rc=%d\n", rc);
goto cleanup;
}
pr_info("SMB138X probed successfully mode=%d\n", chip->chg.mode);
return rc;
cleanup:
platform_set_drvdata(pdev, NULL);
return rc;
}
static int smb138x_remove(struct platform_device *pdev)
{
platform_set_drvdata(pdev, NULL);
return 0;
}
static void smb138x_shutdown(struct platform_device *pdev)
{
struct smb138x *chip = platform_get_drvdata(pdev);
struct smb_charger *chg = &chip->chg;
int rc;
/* Suspend charging */
rc = smb138x_set_parallel_suspend(chip, true);
if (rc < 0)
pr_err("Couldn't suspend charging rc=%d\n", rc);
/* Disable OTG */
rc = smblib_masked_write(chg, CMD_OTG_REG, OTG_EN_BIT, 0);
if (rc < 0)
pr_err("Couldn't disable OTG rc=%d\n", rc);
}
static struct platform_driver smb138x_driver = {
.driver = {
.name = "qcom,smb138x-charger",
.owner = THIS_MODULE,
.of_match_table = match_table,
},
.probe = smb138x_probe,
.remove = smb138x_remove,
.shutdown = smb138x_shutdown,
};
module_platform_driver(smb138x_driver);
MODULE_DESCRIPTION("QPNP SMB138X Charger Driver");
MODULE_LICENSE("GPL v2");