kernel_samsung_a34x-permissive/drivers/battery/charger/mtk_charger/mtk_charger.c
2024-04-28 15:51:13 +02:00

1538 lines
43 KiB
C

/*
* mtk_charger.c - Samsung Charger to connect to mtk charger class
*
* Copyright (C) 2020 Samsung Electronics Co.Ltd
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "mtk_charger.h"
#define ENABLE 1
#define DISABLE 0
#define DEBUG_GET_SET 0
unsigned int f_mode_battery;
EXPORT_SYMBOL(f_mode_battery);
static unsigned int __read_mostly lpcharge;
module_param(lpcharge, uint, 0444);
#if IS_ENABLED(CONFIG_USB_FACTORY_MODE)
static char __read_mostly *f_mode;
module_param(f_mode, charp, 0444);
#endif
static char *mtk_charger_supplied_to[] = {
"battery",
};
static char *mtk_otg_supplied_to[] = {
"otg",
};
#if IS_ENABLED(CONFIG_VIRTUAL_MUIC)
static char *mtk_charger_bc12_supplied_to[] = {
"bc12",
};
#endif
static enum power_supply_property mtk_charger_props[] = {
POWER_SUPPLY_PROP_ONLINE,
};
static enum power_supply_property mtk_charger_otg_props[] = {
POWER_SUPPLY_PROP_ONLINE,
};
#if IS_ENABLED(CONFIG_VIRTUAL_MUIC)
static enum power_supply_property mtk_charger_bc12_props[] = {
POWER_SUPPLY_PROP_ONLINE,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
};
#endif
static int mtk_charger_get_charging_health(struct mtk_charger_data *charger);
static void mtk_charger_set_input_current_limit(
struct mtk_charger_data *charger, int charging_current);
static int mtk_charger_get_input_current_limit(
struct mtk_charger_data *charger);
static int mtk_charger_get_fast_charging_current(
struct mtk_charger_data *charger);
static int mtk_charger_get_regulation_voltage(
struct mtk_charger_data *charger);
static int mtk_charger_get_topoff_setting(struct mtk_charger_data *charger);
static int mtk_charger_get_vbus_voltage(struct mtk_charger_data *charger);
static void mtk_charger_test_read(struct mtk_charger_data *charger)
{
pr_info("%s\n", __func__);
charger_dev_dump_registers(charger->chg_dev);
}
static int mtk_charger_get_vbus_voltage(struct mtk_charger_data *charger)
{
u32 vbus_voltage;
charger_dev_get_vbus(charger->chg_dev, &vbus_voltage);
return (vbus_voltage / 1000);
}
static int mtk_charger_get_vsys_voltage(struct mtk_charger_data *charger)
{
u32 vsys_voltage;
charger_dev_get_vsys(charger->chg_dev, &vsys_voltage);
pr_info("%s: vsys_voltage val : %d\n", __func__, vsys_voltage);
return (vsys_voltage / 1000);
}
static int mtk_charger_otg_control(
struct mtk_charger_data *charger, bool enable)
{
pr_info("%s: called charger otg control : %s\n", __func__,
enable ? "ON" : "OFF");
if (charger->otg_on == enable || lpcharge)
return 0;
mutex_lock(&charger->charger_mutex);
charger->otg_on = enable;
if (!enable) {
charger_dev_enable_otg(charger->chg_dev, false);
} else {
/* Set OCP level if needed */
charger_dev_enable_otg(charger->chg_dev, true);
}
mutex_unlock(&charger->charger_mutex);
power_supply_changed(charger->psy_otg);
return enable;
}
#if defined(CONFIG_AFC_CHARGER)
static int mtk_charger_get_rp_currentlvl(void)
{
union power_supply_propval propval = {0, };
propval.intval = 0;
psy_do_property("battery", get,
POWER_SUPPLY_EXT_PROP_RP_LEVEL,
propval);
return propval.intval;
}
#if defined(CONFIG_PDIC_NOTIFIER)
static int mtk_charger_get_init_src_cap(void)
{
union power_supply_propval propval = {0, };
propval.intval = 0;
psy_do_property("battery", get,
POWER_SUPPLY_EXT_PROP_SRCCAP,
propval);
return propval.intval;
}
#endif
#if defined(ENABLE_FLASH_HV_CTRL)
static int mtk_charger_get_flash_state(void)
{
union power_supply_propval propval = {0, };
propval.intval = 0;
psy_do_property("battery", get,
POWER_SUPPLY_EXT_PROP_FLASH_STATE,
propval);
return propval.intval;
}
#endif
static bool mtk_charger_check_afc_conditions(struct mtk_charger_data *charger)
{
if (mtk_charger_get_charging_health(charger) == POWER_SUPPLY_HEALTH_GOOD)
if (is_wired_type(charger->cable_type))
if (!is_usb_type(charger->cable_type)) {
if (is_hv_wire_type(charger->cable_type))
pr_info("%s: skip AFC with AFC cable\n",
__func__);
else if (is_pd_wire_type(charger->cable_type))
pr_info("%s: skip AFC with PD cable\n",
__func__);
#if defined(ENABLE_FLASH_HV_CTRL)
else if (mtk_charger_get_flash_state())
pr_info("%s: skip AFC with Flash on\n",
__func__);
#endif
#if defined(CONFIG_PDIC_NOTIFIER)
else if (mtk_charger_get_init_src_cap())
pr_info("%s: skip AFC with SRCCAP set\n",
__func__);
#endif
else if (charger->cable_type ==
SEC_BATTERY_CABLE_TIMEOUT)
pr_info("%s: skip AFC in TIMEOUT\n",
__func__);
else if (charger->slow_charging)
pr_info("%s: skip AFC in slow charging\n",
__func__);
else if (mtk_charger_get_rp_currentlvl() !=
RP_CURRENT_LEVEL_DEFAULT)
pr_info("%s: skip AFC in RP:%d\n",
__func__,
mtk_charger_get_rp_currentlvl());
else
return true;
}
return false;
}
#endif
static int mtk_charger_plug_in_out(
struct mtk_charger_data *charger, bool enable)
{
int ret = 0;
if (enable == false) {
#if DEBUG_GET_SET
pr_info("[DEBUG] %s: PLUG-OUT clear VBUS settings\n",
__func__);
#endif
#if defined(CONFIG_AFC_CHARGER)
/* Clear performance related flags */
set_afc_voltage_for_performance(false);
#endif
/* disable wdt */
charger_dev_en_wdt(charger->chg_dev, false);
/* Set MIVR for vbus 5V */
ret = charger_dev_set_mivr(charger->chg_dev,
charger->pdata->vbus_min_charger_voltage); /* uV */
if (ret < 0)
pr_err("[DEBUG]%s: failed to get set_mivr\n", __func__);
} else {
/* Do AFC charging only if BUCK is ON */
if (charger->buck_state) {
/* enable wdt */
/* mt6360: wtd default value is 40s */
charger_dev_en_wdt(charger->chg_dev, true);
#if defined(CONFIG_AFC_CHARGER)
if (mtk_charger_check_afc_conditions(charger))
set_afc_voltage(0x9);
#endif
}
}
return ret;
}
#if defined(CONFIG_AFC_CHARGER)
static void afc_charger_plug_in_out(
struct mtk_charger_data *charger, int cable_type)
{
int ret = 0;
pr_info("[DEBUG]%s:cable_type : %d\n", __func__, cable_type);
if (cable_type == SEC_BATTERY_CABLE_NONE) {
#if defined(CONFIG_AFC_CHARGER)
/* Clear performance related flags */
set_afc_voltage_for_performance(false);
#endif
/* disable wdt */
charger_dev_en_wdt(charger->chg_dev, false);
/* Set MIVR for vbus 5V */
ret = charger_dev_set_mivr(charger->chg_dev,
charger->pdata->vbus_min_charger_voltage); /* uV */
if (ret < 0)
pr_err("[DEBUG]%s: failed to get set_mivr\n", __func__);
} else {
/* enable wdt */
/* mt6360: wtd default value is 40s */
charger_dev_en_wdt(charger->chg_dev, true);
#if defined(CONFIG_AFC_CHARGER)
if (mtk_charger_check_afc_conditions(charger))
set_afc_voltage(0x9);
#endif
}
}
int afc_set_voltage(int volt)
{
pr_info("[DEBUG]%s: %dV to AFC driver\n", __func__, volt);
if (volt == SEC_INPUT_VOLTAGE_9V) {
set_afc_voltage_for_performance(false);
return set_afc_voltage(0x9);
} else if (volt == SEC_INPUT_VOLTAGE_5V) {
set_afc_voltage_for_performance(true);
return set_afc_voltage(0x5);
}
return -EINVAL;
}
EXPORT_SYMBOL(afc_set_voltage);
#endif
static void mtk_charger_set_buck(
struct mtk_charger_data *charger, int enable)
{
if (charger->f_mode == OB_MODE) {
pr_info("%s: OB Mode Skip buck Control\n", __func__);
return;
}
if (enable) {
pr_info("[DEBUG]%s: set buck on\n", __func__);
charger_dev_enable_powerpath(charger->chg_dev, true);
} else {
pr_info("[DEBUG]%s: set buck off\n", __func__);
mtk_charger_plug_in_out(charger, false);
charger_dev_enable_powerpath(charger->chg_dev, false);
}
}
static void mtk_charger_enable_charger_switch(
struct mtk_charger_data *charger, int onoff)
{
if (charger->f_mode == OB_MODE) {
pr_info("%s: OB Mode skip charger control\n", __func__);
return;
}
if (onoff > 0) {
pr_info("[DEBUG]%s: turn on charger\n", __func__);
charger_dev_enable(charger->chg_dev, true);
/* Try 9V boost at charger enable */
mtk_charger_plug_in_out(charger, true);
} else {
pr_info("[DEBUG] %s: turn off charger\n", __func__);
mtk_charger_plug_in_out(charger, false);
charger_dev_enable(charger->chg_dev, false);
}
}
static void mtk_charger_set_regulation_voltage(
struct mtk_charger_data *charger, int float_voltage)
{
if (charger->f_mode == OB_MODE) {
pr_info("%s: OB Mode Skip float voltage setting\n", __func__);
return;
}
/* mt6360_trans_sel(uV, 3900000, 10000, 0x51); */
charger_dev_set_constant_voltage(charger->chg_dev,
(float_voltage * 1000));
pr_info("[DEBUG]%s: float_voltage %d\n", __func__, float_voltage);
}
static int mtk_charger_get_regulation_voltage(struct mtk_charger_data *charger)
{
u32 float_voltage;
charger_dev_get_constant_voltage(charger->chg_dev, &float_voltage);
float_voltage /= 1000;
pr_info("%s: float voltage val : %d\n", __func__, float_voltage);
return float_voltage;
}
static void mtk_charger_set_input_current_limit(
struct mtk_charger_data *charger, int input_current)
{
if (charger->f_mode != NO_MODE) {
pr_info("%s: Skip in IB/OB Mode\n", __func__);
return;
}
charger_dev_set_input_current(charger->chg_dev,
(input_current * 1000));
pr_info("[DEBUG]%s: input current %d\n", __func__, input_current);
}
static void mtk_charger_set_aicl(
struct mtk_charger_data *charger,
unsigned int input_current_limit_by_aicl)
{
union power_supply_propval value;
if ((input_current_limit_by_aicl < charger->input_current) &&
(is_wired_type(charger->cable_type))) {
charger->input_current = input_current_limit_by_aicl;
value.intval = input_current_limit_by_aicl;
psy_do_property("battery", set,
POWER_SUPPLY_EXT_PROP_AICL_CURRENT, value);
}
}
static int mtk_charger_get_input_current_limit(
struct mtk_charger_data *charger)
{
unsigned int input_current = 0;
charger_dev_get_input_current(charger->chg_dev, &input_current);
input_current /= 1000;
pr_info("[DEBUG]%s: input current: %d\n", __func__, input_current);
return input_current;
}
static void mtk_charger_set_fast_charging_current(
struct mtk_charger_data *charger, int charging_current)
{
if (charger->f_mode == OB_MODE) {
pr_info("%s: Skip in OB Mode\n", __func__);
return;
}
pr_info("[DEBUG]%s: output current %d\n", __func__, charging_current);
charger_dev_set_charging_current(charger->chg_dev,
(charging_current * 1000));
}
static int mtk_charger_get_fast_charging_current(
struct mtk_charger_data *charger)
{
unsigned int output_current = 0;
int ret = 0;
ret = charger_dev_get_charging_current(charger->chg_dev,
&output_current);
if (ret < 0)
pr_err("[DEBUG]%s: failed to get output current\n", __func__);
output_current /= 1000;
pr_info("[DEBUG]%s: output current: %d\n", __func__, output_current);
return output_current;
}
static void mtk_charger_set_topoff_current(
struct mtk_charger_data *charger, int eoc)
{
pr_info("[DEBUG]%s: EOC current %d\n", __func__, eoc);
charger_dev_set_eoc_current(charger->chg_dev, (eoc * 1000));
}
static int mtk_charger_get_topoff_setting(struct mtk_charger_data *charger)
{
unsigned int topoff_setting = 0;
charger_dev_get_eoc_current(charger->chg_dev, &topoff_setting);
pr_info("[DEBUG]%s: topoff setting %d\n", __func__, topoff_setting);
return topoff_setting;
}
#if IS_ENABLED(CONFIG_USB_FACTORY_MODE)
static void mtk_charger_set_bat_f_mode(struct mtk_charger_data *charger)
{
union power_supply_propval value = {0, };
f_mode_battery = charger->f_mode;
value.intval = charger->f_mode;
psy_do_property("battery", set,
POWER_SUPPLY_EXT_PROP_BATT_F_MODE, value);
}
#endif
static void mtk_charger_ob_mode(struct mtk_charger_data *charger, bool enable)
{
if (!(charger->f_mode == OB_MODE)) {
pr_info("%s: skip when not in OB Mode\n", __func__);
return;
}
if (enable) {
/* DISABLE AICC */
charger_dev_enable_aicc(charger->chg_dev, false);
/* CHG OFF */
pr_info("[DEBUG]%s: turn off charger(chgenb_en %d)\n", __func__, charger->pdata->chgenb_en);
charger_dev_enable(charger->chg_dev, false);
/* BUCK ON */
pr_info("[DEBUG]%s: set buck on\n", __func__);
charger_dev_enable_powerpath(charger->chg_dev, true);
/* Set VSYS (float voltage) to 4.0V */
charger_dev_set_constant_voltage(charger->chg_dev,
(4200 * 1000));
/* Select 3.25A input current limit from CHG_ILIM */
/* CHG_CTRL2: IINLMTSEL set AICR 3.25A, 0x12[3:2] = 00 */
charger_dev_set_iinlmtsel(charger->chg_dev, false);
if (charger->pdata->chgenb_en == 0) {
/* SET GPIO_ILIM = "H" */
//gpio_direction_output(charger->pdata->gpio_ilim, 1);
/* SET GPIO_CHGENB = "H" */
gpio_direction_output(charger->pdata->gpio_chgenb, 1);
} else {
if (charger->pdata->chgilm_en == 1) {
/* SET GPIO_ILIM = "H" */
gpio_direction_output(charger->pdata->gpio_ilim, 1);
}
/* SET GPIO_CHGENB = "L" */
gpio_direction_output(charger->pdata->gpio_chgenb, 0);
}
/* Disable ILIM function */
/* CHG_CTRL3: 0x13[0] = 0 */
charger_dev_en_ilim(charger->chg_dev, false);
/* Set Input current limit to max (3250mA) */
charger_dev_set_input_current(
charger->chg_dev,
(charger->pdata->max_icl * 1000));
charger_dev_dump_registers(charger->chg_dev);
}
}
static void mtk_charger_ib_mode(struct mtk_charger_data *charger, bool enable)
{
if (!(charger->f_mode == IB_MODE)) {
pr_info("%s: skip when not in IB Mode\n", __func__);
return;
}
if (enable) {
/* DISABLE AICC */
charger_dev_enable_aicc(charger->chg_dev, false);
/* CHG ON */
pr_info("[DEBUG]%s: turn on charger(chgenb_en %d)\n", __func__, charger->pdata->chgenb_en);
charger_dev_enable(charger->chg_dev, true);
/* BUCK ON */
pr_info("[DEBUG]%s: set buck on\n", __func__);
charger_dev_enable_powerpath(charger->chg_dev, true);
/* Select 3.25A input current limit from CHG_ILIM */
/* CHG_CTRL2: IINLMTSEL set AICR 3.25A, 0x12[3:2] = 00 */
charger_dev_set_iinlmtsel(charger->chg_dev, false);
if (charger->pdata->chgenb_en == 0) {
/* SET GPIO_ILIM = "H" */
//gpio_direction_output(charger->pdata->gpio_ilim, 0);
/* SET GPIO_CHGENB = "L" */
gpio_direction_output(charger->pdata->gpio_chgenb, 0);
} else {
if (charger->pdata->chgilm_en == 1) {
/* SET GPIO_ILIM = "L" */
gpio_direction_output(charger->pdata->gpio_ilim, 0);
}
/* SET GPIO_CHGENB = "H" */
gpio_direction_output(charger->pdata->gpio_chgenb, 1);
}
/* Disable ILIM function */
/* CHG_CTRL3: 0x13[0] = 0 */
charger_dev_en_ilim(charger->chg_dev, false);
/* Set Input current limit to max (3250mA) */
charger_dev_set_input_current(
charger->chg_dev,
(charger->pdata->max_icl * 1000));
charger_dev_dump_registers(charger->chg_dev);
} else {
/* Clear IB settings */
pr_info("%s: Clear IB Mode settings (chgenb_en %d)\n", __func__, charger->pdata->chgenb_en);
/* Select input current limit from IAICR */
charger_dev_set_iinlmtsel(charger->chg_dev, true);
if (charger->pdata->chgenb_en == 0) {
/* SET GPIO_ILIM = "L" */
//gpio_direction_output(charger->pdata->gpio_ilim, 0);
/* SET GPIO_CHGENB = "L" */
gpio_direction_output(charger->pdata->gpio_chgenb, 0);
} else {
if (charger->pdata->chgilm_en == 1) {
/* SET GPIO_ILIM = "L" */
gpio_direction_output(charger->pdata->gpio_ilim, 0);
}
/* SET GPIO_CHGENB = "H" */
gpio_direction_output(charger->pdata->gpio_chgenb, 1);
}
/* ENABLE AICC */
charger_dev_enable_aicc(charger->chg_dev, true);
charger->f_mode = NO_MODE;
charger_dev_dump_registers(charger->chg_dev);
}
}
static bool mtk_charger_chg_init(struct mtk_charger_data *charger)
{
int ret;
union power_supply_propval value;
pr_info("%s\n", __func__);
#if IS_ENABLED(CONFIG_USB_FACTORY_MODE)
pr_info("%s: f_mode: %s\n", __func__, f_mode);
pr_info("%s: lpcharge: %d\n", __func__, lpcharge);
if (!f_mode)
charger->f_mode = NO_MODE;
else if ((strncmp(f_mode, "OB", 2) == 0) || (strncmp(f_mode, "DL", 2) == 0))
charger->f_mode = OB_MODE;
else if (strncmp(f_mode, "IB", 2) == 0)
charger->f_mode = IB_MODE;
else
charger->f_mode = NO_MODE;
f_mode_battery = charger->f_mode;
pr_info("[BAT] %s: f_mode: %s\n", __func__, BOOT_MODE_STRING[charger->f_mode]);
#endif
if (!charger->psy_fg)
charger->psy_fg = power_supply_get_by_name(
charger->pdata->fuelgauge_name);
if (!charger->psy_fg) {
pr_err("%s: Unable to get psy_fg\n", __func__);
return false;
}
value.intval = charger->f_mode;
ret = power_supply_set_property(charger->psy_fg,
POWER_SUPPLY_EXT_PROP_BATT_F_MODE,
&value);
if (ret < 0)
pr_err("%s: Fail to execute property\n", __func__);
if (charger->f_mode == IB_MODE) { /* Set IB settings */
pr_info("%s: Set IB Mode\n", __func__);
mtk_charger_ib_mode(charger, true);
} else if (charger->f_mode == NO_MODE) {
if (charger->pdata->chgenb_en == 0) {
pr_info("%s: B/U HW, CHGENB=L\n", __func__);
/* SET GPIO_CHGENB = "L" */
gpio_direction_output(charger->pdata->gpio_chgenb, 0);
}
charger_dev_set_iinlmtsel(charger->chg_dev, true);
usleep_range(5000, 6000);
charger_dev_en_ilim(charger->chg_dev, false);
}
if (charger->f_mode != OB_MODE) {
/* Enable HW EOC */
charger_dev_enable_eoc(charger->chg_dev, true);
/* Set top-off timer to 30 minutes, EOC_TIMER[1:0] = 01 */
charger_dev_set_eoc_timer(charger->chg_dev,
MTK_TOPOFF_TIMER_30m);
/* Disable HW safety timer */
charger_dev_enable_safety_timer(charger->chg_dev, false);
/* Set normal MIVR (based on MTK dts level) */
ret = charger_dev_set_mivr(charger->chg_dev,
charger->pdata->vbus_normal_mivr_voltage); /* uV */
if (ret < 0)
pr_err("[DEBUG]%s: failed to get set_mivr\n",
__func__);
}
return true;
}
static int mtk_charger_get_charging_status(struct mtk_charger_data *charger)
{
int charging_status = POWER_SUPPLY_STATUS_DISCHARGING;
int ret = 0;
bool chg_done = false;
ret = charger_dev_get_charging_status(
charger->chg_dev, &charging_status);
if (ret < 0)
pr_err("[DEBUG]%s: failed to get charging status\n", __func__);
else
pr_info("[DEBUG]%s: charging status: %d\n", __func__,
charging_status);
charger_dev_is_charging_done(charger->chg_dev, &chg_done);
if (chg_done == true) {
charging_status = POWER_SUPPLY_STATUS_FULL;
pr_info("%s: Battery Full!\n", __func__);
}
return charging_status;
}
static int mtk_charger_get_charge_type(struct mtk_charger_data *charger)
{
unsigned int charge_type = 0;
int ret = 0;
ret = charger_dev_get_charge_type(charger->chg_dev, &charge_type);
if (ret < 0)
pr_err("[DEBUG]%s: failed to get charge type\n", __func__);
else
pr_info("[DEBUG]%s: charge type: %d\n", __func__, charge_type);
if ((charge_type == POWER_SUPPLY_CHARGE_TYPE_SLOW) ||
(charge_type == POWER_SUPPLY_CHARGE_TYPE_TRICKLE)) {
charger->slow_charging = true;
pr_info("%s: slow-charging mode\n", __func__);
}
if (charger->slow_charging)
charge_type = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
return charge_type;
}
static void mtk_charger_check_aicl(struct mtk_charger_data *charger)
{
union power_supply_propval value = {0, };
unsigned int charge_type = 0;
int ret = 0;
if (is_wired_type(charger->cable_type)) {
ret = charger_dev_get_charge_type(charger->chg_dev, &charge_type);
if (ret < 0)
pr_err("[DEBUG]%s: failed to get charge type\n", __func__);
else
pr_info("[DEBUG]%s: charge type: %d\n", __func__, charge_type);
if ((charge_type == POWER_SUPPLY_CHARGE_TYPE_SLOW) ||
(charge_type == POWER_SUPPLY_CHARGE_TYPE_TRICKLE)) {
charger->slow_charging = true;
pr_info("%s: slow-charging mode\n", __func__);
psy_do_property("battery", set, POWER_SUPPLY_PROP_CHARGE_TYPE, value);
}
}
}
static bool mtk_charger_get_batt_present(struct mtk_charger_data *charger)
{
return true;
}
static void mtk_charger_wdt_clear(struct mtk_charger_data *charger)
{
/* watchdog kick */
/* mt6360: any register read will clear WDT */
charger_dev_kick_wdt(charger->chg_dev);
}
static int mtk_charger_get_charging_health(struct mtk_charger_data *charger)
{
int charging_health = POWER_SUPPLY_HEALTH_GOOD;
int ret = 0;
if (charger->is_charging)
mtk_charger_wdt_clear(charger);
ret = charger_dev_get_health(charger->chg_dev, &charging_health);
if (ret < 0)
pr_err("[DEBUG]%s: failed to get charging health\n", __func__);
else
pr_info("[DEBUG]%s: charging health: %d\n", __func__,
charging_health);
if ((charging_health != POWER_SUPPLY_HEALTH_GOOD) &&
(charger->cable_type != SEC_BATTERY_CABLE_NONE))
mtk_charger_test_read(charger);
return charging_health;
}
static int mtk_charger_chg_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
int chg_curr, aicr;
struct mtk_charger_data *charger = power_supply_get_drvdata(psy);
enum power_supply_ext_property ext_psp =
(enum power_supply_ext_property) psp;
switch ((int)psp) {
case POWER_SUPPLY_PROP_ONLINE:
val->intval = charger->is_charging ? 1 : 0;
break;
case POWER_SUPPLY_PROP_STATUS:
val->intval = mtk_charger_get_charging_status(charger);
break;
case POWER_SUPPLY_PROP_HEALTH:
val->intval = mtk_charger_get_charging_health(charger);
break;
case POWER_SUPPLY_PROP_CURRENT_MAX:
case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
val->intval = mtk_charger_get_input_current_limit(charger);
break;
case POWER_SUPPLY_PROP_CURRENT_AVG:
case POWER_SUPPLY_PROP_CURRENT_NOW:
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
if (charger->charging_current) {
aicr = mtk_charger_get_input_current_limit(charger);
chg_curr =
mtk_charger_get_fast_charging_current(charger);
val->intval = MINVAL(aicr, chg_curr);
} else
val->intval = 0;
break;
case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
case POWER_SUPPLY_PROP_CURRENT_FULL:
val->intval = mtk_charger_get_topoff_setting(charger);
break;
case POWER_SUPPLY_PROP_CHARGE_TYPE:
val->intval = mtk_charger_get_charge_type(charger);
break;
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
case POWER_SUPPLY_PROP_VOLTAGE_MAX:
val->intval = mtk_charger_get_regulation_voltage(charger);
break;
case POWER_SUPPLY_PROP_PRESENT:
val->intval = mtk_charger_get_batt_present(charger);
break;
case POWER_SUPPLY_PROP_CHARGE_OTG_CONTROL:
mutex_lock(&charger->charger_mutex);
val->intval = charger->otg_on;
mutex_unlock(&charger->charger_mutex);
break;
case POWER_SUPPLY_PROP_MAX ... POWER_SUPPLY_EXT_PROP_MAX:
switch (ext_psp) {
case POWER_SUPPLY_EXT_PROP_CHARGING_ENABLED:
val->intval = charger->charge_mode;
break;
case POWER_SUPPLY_EXT_PROP_MONITOR_WORK:
mtk_charger_test_read(charger);
if (charger->pdata->boosting_voltage_aicl)
mtk_charger_check_aicl(charger); /* cannot detect aicl irq, so need polling*/
break;
case POWER_SUPPLY_EXT_PROP_BATT_VSYS:
val->intval = mtk_charger_get_vsys_voltage(charger);
break;
case POWER_SUPPLY_EXT_PROP_BUCK_STATE:
val->intval = charger->buck_state;
break;
default:
return -EINVAL;
}
break;
default:
return -EINVAL;
}
return 0;
}
static int mtk_charger_chg_set_property(struct power_supply *psy,
enum power_supply_property psp,
const union power_supply_propval *val)
{
struct mtk_charger_data *charger = power_supply_get_drvdata(psy);
enum power_supply_ext_property ext_psp =
(enum power_supply_ext_property)psp;
switch ((int)psp) {
case POWER_SUPPLY_PROP_STATUS:
charger->status = val->intval;
break;
/* val->intval : type */
case POWER_SUPPLY_PROP_ONLINE:
charger->cable_type = val->intval;
charger->slow_charging = false;
charger->ivr_on = false;
break;
case POWER_SUPPLY_PROP_CURRENT_MAX:
case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
{
int input_current = val->intval;
mtk_charger_set_input_current_limit(charger,
input_current);
charger->input_current = input_current;
}
break;
case POWER_SUPPLY_PROP_CURRENT_AVG:
charger->charging_current = val->intval;
mtk_charger_set_fast_charging_current(charger,
charger->charging_current);
break;
case POWER_SUPPLY_PROP_CURRENT_NOW:
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
pr_info("[DEBUG] %s: is_charging %d\n", __func__,
charger->is_charging);
charger->charging_current = val->intval;
/* set charging current */
mtk_charger_set_fast_charging_current(charger,
charger->charging_current);
break;
case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
case POWER_SUPPLY_PROP_CURRENT_FULL:
charger->topoff_current = val->intval;
mtk_charger_set_topoff_current(charger, val->intval);
break;
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
case POWER_SUPPLY_PROP_VOLTAGE_MAX:
pr_info("[DEBUG]%s: float voltage changed [%dmV] -> [%dmV]\n", __func__,
charger->pdata->chg_float_voltage, val->intval);
charger->pdata->chg_float_voltage = val->intval;
mtk_charger_set_regulation_voltage(charger,
charger->pdata->chg_float_voltage);
break;
case POWER_SUPPLY_PROP_CHARGE_OTG_CONTROL:
mtk_charger_otg_control(charger, val->intval);
break;
case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX:
{
/* TO-DO: check for IVR status */
}
break;
case POWER_SUPPLY_PROP_AFC_CHARGER_MODE:
break;
case POWER_SUPPLY_PROP_ENERGY_NOW:
if (val->intval) {
pr_info("%s: Set OB Mode (byp keystring)\n", __func__);
/* Set MIVR for vbus 4.2V */
charger_dev_set_mivr(charger->chg_dev, 4200000); /* uV */
charger->f_mode = OB_MODE;
mtk_charger_ob_mode(charger, true);
} else {
pr_info("%s: SET IB mode (byp keystring)\n",
__func__);
charger->f_mode = IB_MODE;
mtk_charger_ib_mode(charger, true);
/* Set MIVR for vbus 5V */
charger_dev_set_mivr(charger->chg_dev,
charger->pdata->vbus_min_charger_voltage); /* uV */
}
#if IS_ENABLED(CONFIG_USB_FACTORY_MODE)
mtk_charger_set_bat_f_mode(charger);
#endif
break;
case POWER_SUPPLY_PROP_INPUT_VOLTAGE_REGULATION:
break;
case POWER_SUPPLY_PROP_AUTHENTIC:
/* by AT CMD */
if (val->intval) {
pr_info("%s: Set OB Mode (CMD)\n", __func__);
/* Set MIVR for vbus 4.2V */
charger_dev_set_mivr(charger->chg_dev, 4200000); /* uV */
charger->f_mode = OB_MODE;
mtk_charger_ob_mode(charger, true);
} else {
pr_info("%s: Set IB Mode (CMD)\n", __func__);
charger->f_mode = IB_MODE;
mtk_charger_ib_mode(charger, true);
/* Set MIVR for vbus 5V */
charger_dev_set_mivr(charger->chg_dev,
charger->pdata->vbus_min_charger_voltage); /* uV */
}
#if IS_ENABLED(CONFIG_USB_FACTORY_MODE)
mtk_charger_set_bat_f_mode(charger);
#endif
break;
case POWER_SUPPLY_PROP_FUELGAUGE_RESET:
pr_info("%s: reset fuelgauge when surge occur!\n", __func__);
break;
case POWER_SUPPLY_EXT_PROP_MIN ... POWER_SUPPLY_EXT_PROP_MAX:
switch (ext_psp) {
case POWER_SUPPLY_EXT_PROP_CHARGING_ENABLED:
{
int buck_status = false;
charger->charge_mode = val->intval;
switch (charger->charge_mode) {
case SEC_BAT_CHG_MODE_BUCK_OFF:
charger->is_charging = false;
buck_status = false;
break;
case SEC_BAT_CHG_MODE_CHARGING_OFF:
charger->is_charging = false;
buck_status = true;
break;
case SEC_BAT_CHG_MODE_CHARGING:
charger->is_charging = true;
buck_status = true;
break;
}
if (buck_status != charger->buck_state) {
pr_info("[DEBUG]%s: buck state : old(%d), new(%d)\n",
__func__, charger->buck_state, buck_status);
charger->buck_state = buck_status;
mtk_charger_set_buck(charger, charger->buck_state);
}
if (charger->buck_state)
mtk_charger_enable_charger_switch(charger,
charger->is_charging);
}
break;
case POWER_SUPPLY_EXT_PROP_BATT_F_MODE:
case POWER_SUPPLY_EXT_PROP_CURRENT_MEASURE:
/* by keystring */
if (val->intval) {
pr_info("%s: Set OB Mode (keystring)\n",
__func__);
/* Set MIVR for vbus 4.2V */
charger_dev_set_mivr(charger->chg_dev, 4200000); /* uV */
charger->f_mode = OB_MODE;
mtk_charger_ob_mode(charger, true);
} else {
pr_info("%s: Set IB Mode (keystring)\n",
__func__);
charger->f_mode = IB_MODE;
mtk_charger_ib_mode(charger, true);
/* Set MIVR for vbus 5V */
charger_dev_set_mivr(charger->chg_dev,
charger->pdata->vbus_min_charger_voltage); /* uV */
}
#if IS_ENABLED(CONFIG_USB_FACTORY_MODE)
mtk_charger_set_bat_f_mode(charger);
#endif
break;
case POWER_SUPPLY_EXT_PROP_IB_MODE:
pr_info("%s: Set IB Mode (sysfs): %d\n", __func__,
val->intval);
charger->f_mode = IB_MODE;
mtk_charger_ib_mode(charger, val->intval);
#if IS_ENABLED(CONFIG_USB_FACTORY_MODE)
mtk_charger_set_bat_f_mode(charger);
#endif
break;
case POWER_SUPPLY_EXT_PROP_OB_MODE_CABLE_REMOVED:
{
int vbus =
mtk_charger_get_vbus_voltage(charger);
pr_info("%s: VBUS: %d\n", __func__, vbus);
if (vbus < 4000) {
pr_info("%s: No Cable, power-off\n",
__func__);
/* BATFET tuns off with 18s delay */
charger_dev_enable_ship_mode(
charger->chg_dev, true);
mt_power_off();
}
}
break;
case POWER_SUPPLY_EXT_PROP_SHIPMODE_TEST:
pr_info("%s: manual ship mode set as %s\n", __func__,
val->intval ?
"enable" : "disable");
/* BATFET turns off immediately */
charger_dev_enable_ship_mode(charger->chg_dev, false);
break;
case POWER_SUPPLY_EXT_PROP_AICL_CURRENT:
pr_info("%s: AICL current: %d\n", __func__, val->intval);
mtk_charger_set_aicl(charger, val->intval);
break;
#if defined(CONFIG_AFC_CHARGER)
case POWER_SUPPLY_EXT_PROP_AFC_INIT:
pr_info("%s: afc_charger_plug_in_out(): %d\n", __func__, val->intval);
afc_charger_plug_in_out(charger, val->intval);
break;
#endif
default:
return -EINVAL;
}
break;
default:
return -EINVAL;
}
return 0;
}
static int mtk_charger_otg_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct mtk_charger_data *charger = power_supply_get_drvdata(psy);
switch (psp) {
case POWER_SUPPLY_PROP_ONLINE:
mutex_lock(&charger->charger_mutex);
val->intval = charger->otg_on;
mutex_unlock(&charger->charger_mutex);
break;
case POWER_SUPPLY_PROP_VOLTAGE_MAX:
break;
default:
return -EINVAL;
}
return 0;
}
static int mtk_charger_otg_set_property(struct power_supply *psy,
enum power_supply_property psp,
const union power_supply_propval *val)
{
struct mtk_charger_data *charger = power_supply_get_drvdata(psy);
union power_supply_propval value;
int ret;
switch (psp) {
case POWER_SUPPLY_PROP_ONLINE:
pr_info("%s: OTG %s\n", __func__,
val->intval > 0 ? "ON" : "OFF");
mtk_charger_otg_control(charger, val->intval);
break;
case POWER_SUPPLY_PROP_VOLTAGE_MAX:
pr_info("POWER_SUPPLY_PROP_VOLTAGE_MAX, set otg current limit %dmA\n", (val->intval) ? 1500 : 900);
break;
default:
return -EINVAL;
}
return 0;
}
#if IS_ENABLED(CONFIG_VIRTUAL_MUIC)
static int mtk_charger_bc12_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct mtk_charger_data *charger = power_supply_get_drvdata(psy);
switch (psp) {
case POWER_SUPPLY_PROP_ONLINE:
mutex_lock(&charger->charger_mutex);
val->intval = charger->cable_type;
mutex_unlock(&charger->charger_mutex);
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
break;
default:
return -EINVAL;
}
return 0;
}
static int mtk_charger_bc12_set_property(struct power_supply *psy,
enum power_supply_property psp,
const union power_supply_propval *val)
{
struct mtk_charger_data *charger = power_supply_get_drvdata(psy);
union power_supply_propval value;
int ret;
switch (psp) {
case POWER_SUPPLY_PROP_ONLINE:
charger->cable_type = val->intval;
charger->slow_charging = false;
power_supply_changed(charger->psy_bc12);
break;
default:
return -EINVAL;
}
return 0;
}
#endif
static int mtk_charger_parse_dt(struct device *dev,
struct mtk_charger_platform_data *pdata)
{
struct device_node *np = of_find_node_by_name(NULL, "mtk-charger");
int ret = 0;
if (!np) {
pr_err("%s np NULL(mtk-charger)\n", __func__);
} else {
ret = of_property_read_u32(np, "charger,slow_charging_current",
&pdata->slow_charging_current);
if (ret) {
pr_info("%s : slow_charging_current is Empty\n",
__func__);
pdata->slow_charging_current =
SLOW_CHARGING_CURRENT_STANDARD;
} else {
pr_info("%s : slow_charging_current is %d\n",
__func__, pdata->slow_charging_current);
}
ret = of_property_read_u32(np,
"charger,vbus_min_charger_voltage",
&pdata->vbus_min_charger_voltage);
if (ret) {
pr_info("%s: vbus_min_charger_voltage is Empty\n",
__func__);
pdata->vbus_min_charger_voltage = 4600000;
}
pr_info("%s: charger,vbus_min_charger_voltage is %d\n",
__func__, pdata->vbus_min_charger_voltage);
ret = of_property_read_u32(np,
"charger,vbus_normal_mivr_voltage",
&pdata->vbus_normal_mivr_voltage);
if (ret) {
pr_info("%s: vbus_normal_mivr_voltage is Empty\n",
__func__);
pdata->vbus_normal_mivr_voltage = 4400000;
}
pr_info("%s: charger,vbus_normal_mivr_voltage is %d\n",
__func__, pdata->vbus_normal_mivr_voltage);
pdata->gpio_ilim = of_get_named_gpio(np,
"charger,gpio_ilim", 0);
pdata->gpio_chgenb = of_get_named_gpio(np,
"charger,gpio_chgenb", 0);
ret = of_property_read_u32(np, "charger,max_icl",
&pdata->max_icl);
if (ret) {
pr_info("%s: max_icl is Empty\n", __func__);
pdata->max_icl = 3250;
}
ret = of_property_read_u32(np, "charger,ib_fcc",
&pdata->ib_fcc);
if (ret) {
pr_info("%s: ib_fcc is Empty\n", __func__);
pdata->ib_fcc = 500;
}
pr_info("%s: max_icl, ib_fcc are: %d, %d\n",
__func__, pdata->max_icl, pdata->ib_fcc);
ret = of_property_read_u32(np, "charger,chgenb_en",
&pdata->chgenb_en);
if (ret) {
pr_info("%s: chgenb_en is empty\n", __func__);
pdata->chgenb_en = 1;
}
pr_info("%s: chgenb_en %d\n", __func__, pdata->chgenb_en);
ret = of_property_read_u32(np, "charger,chgilm_en",
&pdata->chgilm_en);
if (ret) {
pr_info("%s: chgilm_en is empty\n", __func__);
pdata->chgilm_en = 1;
}
pr_info("%s: chgilm_en %d\n", __func__, pdata->chgilm_en);
}
np = of_find_node_by_name(NULL, "battery");
if (!np) {
pr_err("%s np NULL\n", __func__);
} else {
ret = of_property_read_string(np,
"battery,fuelgauge_name",
(char const **)&pdata->fuelgauge_name);
if (ret < 0)
pr_info("%s: Fuel-gauge name is Empty\n", __func__);
ret = of_property_read_u32(np, "battery,chg_float_voltage",
&pdata->chg_float_voltage);
if (ret) {
pr_info("%s: battery,chg_float_voltage is Empty\n",
__func__);
pdata->chg_float_voltage = 4200;
}
pr_info("%s: battery,chg_float_voltage is %d\n",
__func__, pdata->chg_float_voltage);
pdata->boosting_voltage_aicl = of_property_read_bool(np,
"battery,boosting_voltage_aicl");
}
pr_info("%s DT file parsed successfully, %d\n", __func__, ret);
return ret;
}
ssize_t mtk_charger_show_attrs(struct device *dev,
struct device_attribute *attr, char *buf);
ssize_t mtk_charger_store_attrs(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count);
#define MTK_CHARGER_ATTR(_name) \
{ \
.attr = {.name = #_name, .mode = 0664}, \
.show = mtk_charger_show_attrs, \
.store = mtk_charger_store_attrs, \
}
enum {
CHIP_ID = 0,
};
static struct device_attribute mtk_charger_attrs[] = {
MTK_CHARGER_ATTR(chip_id),
};
static int mtk_charger_create_attrs(struct device *dev)
{
int i, rc;
for (i = 0; i < (int)ARRAY_SIZE(mtk_charger_attrs); i++) {
rc = device_create_file(dev, &mtk_charger_attrs[i]);
if (rc)
goto create_attrs_failed;
}
return rc;
create_attrs_failed:
dev_err(dev, "%s: failed (%d)\n", __func__, rc);
while (i--)
device_remove_file(dev, &mtk_charger_attrs[i]);
return rc;
}
ssize_t mtk_charger_show_attrs(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct power_supply *psy = dev_get_drvdata(dev);
struct mtk_charger_data *charger = power_supply_get_drvdata(psy);
const ptrdiff_t offset = attr - mtk_charger_attrs;
int i = 0;
switch (offset) {
case CHIP_ID:
i += scnprintf(buf + i, PAGE_SIZE - i, "%x\n",
charger->dev_id);
break;
default:
return -EINVAL;
}
return i;
}
ssize_t mtk_charger_store_attrs(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
const ptrdiff_t offset = attr - mtk_charger_attrs;
int ret = 0;
switch (offset) {
case CHIP_ID:
ret = count;
break;
default:
ret = -EINVAL;
}
return ret;
}
/* if need to set mtk_charger pdata */
static const struct of_device_id mtk_charger_match_table[] = {
{ .compatible = "samsung,mtk-charger",},
{},
};
static int mtk_charger_probe(struct platform_device *pdev)
{
struct mtk_charger_data *charger = NULL;
struct power_supply_config psy_cfg = {};
int ret = 0;
pr_info("%s:[BATT] MTK Charger driver probe\n", __func__);
charger = kzalloc(sizeof(*charger), GFP_KERNEL);
if (!charger)
return -ENOMEM;
/*Need to replace with meaningful value from PMIC */
charger->dev_id = 1;
mutex_init(&charger->charger_mutex);
charger->otg_on = false;
charger->ivr_on = false;
charger->slow_charging = false;
charger->buck_state = -1;
charger->dev = &pdev->dev;
charger->pdata = devm_kzalloc(&pdev->dev, sizeof(*(charger->pdata)),
GFP_KERNEL);
if (!charger->pdata) {
ret = -ENOMEM;
goto err_parse_dt_nomem;
}
ret = mtk_charger_parse_dt(&pdev->dev, charger->pdata);
if (ret < 0)
goto err_parse_dt;
if ((charger->pdata->chgenb_en == 1) && (charger->pdata->chgilm_en == 1)) {
ret = gpio_request(charger->pdata->gpio_ilim, "charger,gpio_ilim");
if (ret < 0) {
pr_err("failed to request ilim gpio\n", __func__);
goto err_parse_gpio;
}
}
ret = gpio_request(charger->pdata->gpio_chgenb, "charger,gpio_chgenb");
if (ret < 0) {
pr_err("failed to request chgenb gpio\n", __func__);
goto err_parse_gpio;
}
platform_set_drvdata(pdev, charger);
charger->chg_dev = get_charger_by_name("primary_chg");
if (charger->chg_dev)
chr_err("Found primary charger [%s]\n",
charger->chg_dev->props.alias_name);
else
chr_err("*** Error : can't find primary charger ***\n");
if (charger->pdata->charger_name == NULL)
charger->pdata->charger_name = "mtk-charger";
if (charger->pdata->fuelgauge_name == NULL)
charger->pdata->fuelgauge_name = "mtk-fg-battery";
charger->psy_chg_desc.name = charger->pdata->charger_name;
charger->psy_chg_desc.type = POWER_SUPPLY_TYPE_UNKNOWN;
charger->psy_chg_desc.get_property = mtk_charger_chg_get_property;
charger->psy_chg_desc.set_property = mtk_charger_chg_set_property;
charger->psy_chg_desc.properties = mtk_charger_props;
charger->psy_chg_desc.num_properties = ARRAY_SIZE(mtk_charger_props);
#if IS_ENABLED(CONFIG_VIRTUAL_MUIC)
charger->psy_bc12_desc.name = "bc12";
charger->psy_bc12_desc.type = POWER_SUPPLY_TYPE_UNKNOWN;
charger->psy_bc12_desc.get_property = mtk_charger_bc12_get_property;
charger->psy_bc12_desc.set_property = mtk_charger_bc12_set_property;
charger->psy_bc12_desc.properties = mtk_charger_bc12_props;
charger->psy_bc12_desc.num_properties =
ARRAY_SIZE(mtk_charger_bc12_props);
#endif
mtk_charger_chg_init(charger);
charger->input_current = mtk_charger_get_input_current_limit(charger);
charger->charging_current =
mtk_charger_get_fast_charging_current(charger);
charger->cable_type = SEC_BATTERY_CABLE_NONE;
psy_cfg.drv_data = charger;
psy_cfg.supplied_to = mtk_charger_supplied_to;
psy_cfg.num_supplicants = ARRAY_SIZE(mtk_charger_supplied_to);
charger->psy_chg = power_supply_register(&pdev->dev,
&charger->psy_chg_desc, &psy_cfg);
if (IS_ERR(charger->psy_chg)) {
pr_err("%s: Failed to Register psy_chg\n", __func__);
ret = PTR_ERR(charger->psy_chg);
goto err_power_supply_register;
}
charger->psy_otg_desc.name = "mtk-otg";
charger->psy_otg_desc.type = POWER_SUPPLY_TYPE_UNKNOWN;
charger->psy_otg_desc.get_property = mtk_charger_otg_get_property;
charger->psy_otg_desc.set_property = mtk_charger_otg_set_property;
charger->psy_otg_desc.properties = mtk_charger_otg_props;
charger->psy_otg_desc.num_properties =
ARRAY_SIZE(mtk_charger_otg_props);
psy_cfg.supplied_to = mtk_otg_supplied_to;
psy_cfg.num_supplicants = ARRAY_SIZE(mtk_otg_supplied_to);
charger->psy_otg = power_supply_register(&pdev->dev,
&charger->psy_otg_desc, &psy_cfg);
if (IS_ERR(charger->psy_otg)) {
pr_err("%s: Failed to Register psy_otg\n", __func__);
ret = PTR_ERR(charger->psy_otg);
goto err_power_supply_register_otg;
}
#if IS_ENABLED(CONFIG_VIRTUAL_MUIC)
psy_cfg.supplied_to = mtk_charger_bc12_supplied_to;
psy_cfg.num_supplicants = ARRAY_SIZE(mtk_charger_bc12_supplied_to);
charger->psy_bc12 = power_supply_register(&pdev->dev,
&charger->psy_bc12_desc, &psy_cfg);
if (IS_ERR(charger->psy_bc12)) {
pr_err("%s: Failed to Register psy_bc12\n", __func__);
ret = PTR_ERR(charger->psy_bc12);
goto err_power_supply_register_bc12;
}
#endif
#if EN_TEST_READ
mtk_charger_test_read(charger);
#endif
ret = mtk_charger_create_attrs(&charger->psy_chg->dev);
if (ret) {
pr_err("%s : Failed to create_attrs\n", __func__);
goto err_attrs_create;
}
sec_chg_set_dev_init(SC_DEV_MAIN_CHG);
pr_info("%s:[BATT] MTK Charger driver loaded OK\n", __func__);
return 0;
err_attrs_create:
power_supply_unregister(charger->psy_otg);
err_power_supply_register_otg:
power_supply_unregister(charger->psy_chg);
#if IS_ENABLED(CONFIG_VIRTUAL_MUIC)
err_power_supply_register_bc12:
power_supply_unregister(charger->psy_bc12);
#endif
err_power_supply_register:
err_parse_gpio:
err_parse_dt:
err_parse_dt_nomem:
mutex_destroy(&charger->charger_mutex);
kfree(charger);
return ret;
}
static int mtk_charger_remove(struct platform_device *pdev)
{
struct mtk_charger_data *charger = platform_get_drvdata(pdev);
power_supply_unregister(charger->psy_chg);
#if IS_ENABLED(CONFIG_VIRTUAL_MUIC)
power_supply_unregister(charger->psy_bc12);
#endif
mutex_destroy(&charger->charger_mutex);
kfree(charger);
return 0;
}
#if defined CONFIG_PM
static int mtk_charger_suspend(struct device *dev)
{
return 0;
}
static int mtk_charger_resume(struct device *dev)
{
return 0;
}
#else
#define mtk_charger_suspend NULL
#define mtk_charger_resume NULL
#endif
static void mtk_charger_shutdown(struct platform_device *pdev)
{
struct mtk_charger_data *charger = platform_get_drvdata(pdev);
pr_info("%s: MTK charger driver shutdown\n", __func__);
/* Switch buck on when shut-down */
mtk_charger_set_buck(charger, 1);
}
static SIMPLE_DEV_PM_OPS(mtk_charger_pm_ops, mtk_charger_suspend,
mtk_charger_resume);
static struct platform_driver mtk_charger_driver = {
.driver = {
.name = "mtk-charger",
.owner = THIS_MODULE,
.of_match_table = mtk_charger_match_table,
.pm = &mtk_charger_pm_ops,
},
.probe = mtk_charger_probe,
.remove = mtk_charger_remove,
.shutdown = mtk_charger_shutdown,
};
static int __init mtk_charger_init(void)
{
int ret = 0;
pr_info("%s start\n", __func__);
ret = platform_driver_register(&mtk_charger_driver);
return ret;
}
module_init(mtk_charger_init);
static void __exit mtk_charger_exit(void)
{
pr_info("%s exit\n", __func__);
platform_driver_unregister(&mtk_charger_driver);
}
module_exit(mtk_charger_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Samsung Electronics");
MODULE_DESCRIPTION("Charger driver for MTK charger class");