1642 lines
46 KiB
C
1642 lines
46 KiB
C
/*
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* s2mu205_charger.c - S2MU205 Charger Driver
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*
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* Copyright (C) 2016 Samsung Electronics Co.Ltd
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <linux/mfd/samsung/s2mu205.h>
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#include "include/charger/s2mu205_charger.h"
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#include <linux/version.h>
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#include <linux/sec_batt.h>
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#if defined(CONFIG_LEDS_S2MU205_FLASH)
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#include <linux/leds-s2mu205.h>
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#endif
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#define ENABLE 1
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#define DISABLE 0
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#define IVR_WORK_DELAY 150
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static char *s2mu205_supplied_to[] = {
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"battery",
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};
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static enum power_supply_property s2mu205_charger_props[] = {
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};
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static enum power_supply_property s2mu205_otg_props[] = {
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POWER_SUPPLY_PROP_ONLINE,
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};
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static int s2mu205_get_charging_health(struct s2mu205_charger_data *charger);
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static void s2mu205_test_read(struct i2c_client *i2c)
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{
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u8 data;
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char str[1016] = {0,};
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int i;
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for (i = S2MU205_CHG_INT1M ; i <= S2MU205_CHG_INT3M ; i++) {
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s2mu205_read_reg(i2c, i, &data);
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sprintf(str+strlen(str), "0x%02x:0x%02x, ", i, data);
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}
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s2mu205_read_reg(i2c, 0x0C, &data);
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sprintf(str+strlen(str), "0x%02x:0x%02x, ", 0x0C, data);
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for (i = S2MU205_CHG_STATUS0 ; i <= S2MU205_CHG_CTRL15 ; i++) {
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s2mu205_read_reg(i2c, i, &data);
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sprintf(str+strlen(str), "0x%02x:0x%02x, ", i, data);
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}
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s2mu205_read_reg(i2c, 0x33, &data);
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sprintf(str+strlen(str), "0x%02x:0x%02x, ", 0x33, data);
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s2mu205_read_reg(i2c, 0x3F, &data);
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sprintf(str+strlen(str), "0x%02x:0x%02x, ", 0x3F, data);
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s2mu205_read_reg(i2c, 0x48, &data);
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sprintf(str+strlen(str), "0x%02x:0x%02x, ", 0x48, data);
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s2mu205_read_reg(i2c, 0x49, &data);
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sprintf(str+strlen(str), "0x%02x:0x%02x, ", 0x49, data);
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s2mu205_read_reg(i2c, 0x4F, &data);
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sprintf(str+strlen(str), "0x%02x:0x%02x, ", 0x4F, data);
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s2mu205_read_reg(i2c, 0xF5, &data);
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sprintf(str+strlen(str), "0x%02x:0x%02x, ", 0xF5, data);
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s2mu205_read_reg(i2c, 0xA7, &data);
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sprintf(str+strlen(str), "0x%02x:0x%02x, ", 0xA7, data);
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pr_err("%s: %s\n", __func__, str);
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}
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static int s2mu205_charger_otg_control(
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struct s2mu205_charger_data *charger, bool enable)
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{
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u8 chg_sts4, chg_ctrl0;
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pr_info("%s: called charger otg control : %s\n", __func__,
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enable ? "ON" : "OFF");
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mutex_lock(&charger->charger_mutex);
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#if 0
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if (charger->is_charging) {
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pr_info("%s: Charger is enabled and OTG noti received!!!\n", __func__);
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pr_info("%s: is_charging: %d, otg_on: %d",
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__func__, charger->is_charging, charger->otg_on);
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s2mu205_test_read(charger->i2c);
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goto out;
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}
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#endif
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if (charger->otg_on == enable)
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goto out;
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if (!enable) {
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/* CHGIN Vref Soft start 1024us->128us (default) */
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s2mu205_update_reg(charger->i2c, 0x92, 0x0C, 0x0C);
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s2mu205_update_reg(charger->i2c,
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S2MU205_CHG_CTRL0, CHG_MODE, REG_MODE_MASK);
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} else {
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/* OTG OCP level 1.5A */
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s2mu205_update_reg(charger->i2c,
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S2MU205_CHG_CTRL12,
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S2MU205_SET_OTG_OCP_1500mA << SET_OTG_OCP_SHIFT,
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SET_OTG_OCP_MASK);
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/* CHGIN Vref Soft start 128us -> 1024us */
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s2mu205_update_reg(charger->i2c, 0x92, 0x00, 0x0C);
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msleep(30);
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/* OTG mode */
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s2mu205_update_reg(charger->i2c,
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S2MU205_CHG_CTRL0, OTG_BST_MODE, REG_MODE_MASK);
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charger->cable_type = SEC_BATTERY_CABLE_OTG;
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}
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charger->otg_on = enable;
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out:
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mutex_unlock(&charger->charger_mutex);
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s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS4, &chg_sts4);
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s2mu205_read_reg(charger->i2c, S2MU205_CHG_CTRL0, &chg_ctrl0);
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pr_info("%s S2MU205_CHG_STATUS4: 0x%x\n", __func__, chg_sts4);
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pr_info("%s S2MU205_CHG_CTRL0: 0x%x\n", __func__, chg_ctrl0);
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power_supply_changed(charger->psy_otg);
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return enable;
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}
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static void s2mu205_enable_charger_switch(
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struct s2mu205_charger_data *charger, int onoff)
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{
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mutex_lock(&charger->charger_mutex);
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if (factory_mode) {
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pr_info("%s: Factory Mode Skip CHG_EN Control\n", __func__);
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goto out;
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}
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if (charger->otg_on) {
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pr_info("[DEBUG] %s: skipped set(%d) : OTG is on\n", __func__, onoff);
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charger->is_charging = false;
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goto out;
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}
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if (onoff > 0) {
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pr_info("[DEBUG]%s: turn on charger\n", __func__);
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s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL0, CHG_MODE, REG_MODE_MASK);
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/* timer fault set 16hr(max) */
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s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL14,
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S2MU205_FC_CHG_TIMER_16hr << TIME_FC_CHG_SHIFT,
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TIME_FC_CHG_MASK);
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} else {
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pr_info("[DEBUG] %s: turn off charger\n", __func__);
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s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL0, BUCK_MODE, REG_MODE_MASK);
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}
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out:
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mutex_unlock(&charger->charger_mutex);
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}
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static void s2mu205_set_buck(
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struct s2mu205_charger_data *charger, int enable) {
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if (enable) {
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pr_info("[DEBUG]%s: set buck on\n", __func__);
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s2mu205_enable_charger_switch(charger, charger->is_charging);
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} else {
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pr_info("[DEBUG]%s: set buck off (charger off mode)\n", __func__);
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s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL0, CHARGER_OFF_MODE, REG_MODE_MASK);
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}
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}
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static void s2mu205_set_regulation_vsys(
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struct s2mu205_charger_data *charger, int vsys)
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{
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u8 data;
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pr_info("[DEBUG]%s: VSYS regulation %d\n", __func__, vsys);
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if (vsys <= 3700)
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data = 0;
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else if (vsys > 3700 && vsys <= 4400)
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data = (vsys - 3700) / 100;
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else
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data = 0x07;
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s2mu205_update_reg(charger->i2c,
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S2MU205_CHG_CTRL6, data << SET_VF_VSYS_SHIFT, SET_VF_VSYS_MASK);
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}
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static void s2mu205_set_regulation_voltage(
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struct s2mu205_charger_data *charger, int float_voltage)
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{
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u8 data;
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if (factory_mode)
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return;
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pr_info("[DEBUG]%s: float_voltage %d\n", __func__, float_voltage);
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if (float_voltage <= 3900)
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data = 0;
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else if (float_voltage > 3900 && float_voltage <= 4535)
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data = (float_voltage - 3900) / 5;
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else
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data = 0x7F;
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s2mu205_update_reg(charger->i2c,
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S2MU205_CHG_CTRL3, data << SET_VF_VBAT_SHIFT, SET_VF_VBAT_MASK);
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}
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static int s2mu205_get_regulation_voltage(struct s2mu205_charger_data *charger)
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{
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u8 reg_data = 0;
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int float_voltage;
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s2mu205_read_reg(charger->i2c, S2MU205_CHG_CTRL3, ®_data);
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reg_data &= 0x7F;
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float_voltage = reg_data * 5 + 3900;
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pr_debug("%s: battery cv reg : 0x%x, float voltage val : %d\n",
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__func__, reg_data, float_voltage);
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return float_voltage;
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}
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static void s2mu205_set_input_current_limit(
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struct s2mu205_charger_data *charger, int charging_current)
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{
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u8 data;
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if (factory_mode)
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return;
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if (charging_current <= 100)
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data = 0x02;
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else if (charging_current > 100 && charging_current <= 3000)
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data = (charging_current - 50) / 25;
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else
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data = 0x62;
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s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL1,
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data << SET_IIN_CHGIN_ILIM_SHIFT, SET_IIN_CHGIN_ILIM_MASK);
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pr_info("[DEBUG]%s: current %d, 0x%x\n", __func__, charging_current, data);
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#if EN_TEST_READ
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s2mu205_test_read(charger->i2c);
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#endif
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}
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static int s2mu205_get_input_current_limit(struct s2mu205_charger_data *charger)
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{
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u8 data;
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s2mu205_read_reg(charger->i2c, S2MU205_CHG_CTRL1, &data);
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if (data < 0)
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return data;
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data = data & SET_IIN_CHGIN_ILIM_MASK;
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if (data > 0x76) {
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pr_err("%s: Invalid current limit in register\n", __func__);
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data = 0x76;
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}
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return data * 25 + 50;
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}
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//TO DO need to set wcin current
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static void s2mu205_set_fast_charging_current(
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struct s2mu205_charger_data *charger, int charging_current)
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{
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u8 data;
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if (factory_mode)
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return;
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if (charging_current <= 100)
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data = 0x01;
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else if (charging_current > 100 && charging_current <= 3200)
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data = (charging_current / 50) - 1;
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else
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data = 0x3D;
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s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL5,
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data << SET_FAST_CHG_CUR_SHIFT, SET_FAST_CHG_CUR_MASK);
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pr_info("[DEBUG]%s: current %d, 0x%02x\n", __func__, charging_current, data);
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#if EN_TEST_READ
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s2mu205_test_read(charger->i2c);
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#endif
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}
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static int s2mu205_get_fast_charging_current(
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struct s2mu205_charger_data *charger)
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{
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u8 data;
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s2mu205_read_reg(charger->i2c, S2MU205_CHG_CTRL5, &data);
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if (data < 0)
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return data;
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data = data & SET_FAST_CHG_CUR_MASK;
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if (data > 0x3F) {
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pr_err("%s: Invalid fast charging current in register\n", __func__);
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data = 0x3F;
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}
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return (data + 1) * 50;
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}
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static void s2mu205_set_topoff_current(
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struct s2mu205_charger_data *charger,
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int eoc_1st_2nd, int current_limit)
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{
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int data;
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pr_info("[DEBUG]%s: current %d\n", __func__, current_limit);
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if (current_limit <= 100)
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data = 0;
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else if (current_limit > 100 && current_limit <= 475)
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data = (current_limit - 100) / 25;
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else
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data = 0x0F;
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switch (eoc_1st_2nd) {
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case 1:
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s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL10,
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data << SET_1ST_TOP_OFF_SHIFT, SET_1ST_TOP_OFF_MASK);
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break;
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case 2:
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s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL10,
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data << SET_2ND_TOP_OFF_SHIFT, SET_2ND_TOP_OFF_MASK);
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break;
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default:
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break;
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}
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}
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static int s2mu205_get_topoff_setting(
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struct s2mu205_charger_data *charger)
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{
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u8 data;
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s2mu205_read_reg(charger->i2c, S2MU205_CHG_CTRL10, &data);
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if (data < 0)
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return data;
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data = data & SET_1ST_TOP_OFF_MASK;
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if (data > 0x0F)
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data = 0x0F;
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return data * 25 + 100;
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}
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static bool s2mu205_chg_init(struct s2mu205_charger_data *charger)
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{
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u8 temp;
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/* Set default regulation voltage 4.35v
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s2mu205_update_reg(charger->i2c,
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S2MU205_CHG_CTRL5, 0x5A << SET_VF_VBAT_SHIFT, SET_VF_VBAT_MASK);
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*/
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/* ensure OTG start-up */
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s2mu205_update_reg(charger->i2c, 0x90, 0x00, 0x01 << 2);
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s2mu205_update_reg(charger->i2c, 0x8F, 0x00, 0x0C);
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/* To prevent entering watchdog issue case we set WDT_CLR to not clear before enabling WDT */
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s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL13, 0x00, WDT_CLR_MASK);
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s2mu205_update_reg(charger->i2c, 0x8F, 0x00, 0x3 << 2);
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/* set watchdog timer to 80 seconds */
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s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL13,
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S2MU205_WDT_TIMER_80s << SET_WDT_TIME_SHIFT,
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SET_WDT_TIME_MASK);
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/* enable Watchdog timer and only Charging off */
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s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL13,
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ENABLE << EN_WDT_SHIFT | DISABLE << EN_WDT_AP_RESET_SHIFT,
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EN_WDT_MASK | EN_WDT_AP_RESET_MASK);
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s2mu205_read_reg(charger->i2c, S2MU205_CHG_CTRL13, &temp);
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pr_info("%s : for WDT setting S2MU205_CHG_CTRL13 : 0x%x\n", __func__, temp);
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/* TODO : need to check previous history */
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/* Type-C reset off */
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//s2mu205_update_reg(charger->i2c, 0xEC, 0x00, 0x80);
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/* MRSTB 1s set */
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//s2mu205_write_reg(charger->i2c, 0xE5, 0x08);
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#ifndef CONFIG_SEC_FACTORY
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/* Prevent sudden power off when detected water is dried */
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if (!factory_mode) {
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pr_info ("%s Normal booting\n", __func__);
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s2mu205_update_reg(charger->i2c, 0x95, 0x00, 0x04);
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}
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#endif
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return true;
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}
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static int s2mu205_get_charging_status(
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struct s2mu205_charger_data *charger)
|
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{
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int status = POWER_SUPPLY_STATUS_UNKNOWN;
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int ret;
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u8 chg_sts0, chg_sts1;
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union power_supply_propval value;
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struct power_supply *psy;
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ret = s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS0, &chg_sts0);
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ret = s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS1, &chg_sts1);
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psy = power_supply_get_by_name(charger->pdata->fuelgauge_name);
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if (!psy)
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return -EINVAL;
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ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_CURRENT_AVG, &value);
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if (ret < 0)
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pr_err("%s: Fail to execute property\n", __func__);
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if (ret < 0)
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return status;
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|
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/* TODO : Discharging Condition? */
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if (chg_sts0 & 0x04 || chg_sts0 & 0x02) {
|
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pr_info("%s: full check curr_avg(%d), topoff_curr(%d)\n",
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__func__, value.intval, charger->topoff_current);
|
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if (value.intval < charger->topoff_current)
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status = POWER_SUPPLY_STATUS_FULL;
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else
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status = POWER_SUPPLY_STATUS_CHARGING;
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} else if ((chg_sts0 & CHGIN_STATUS_MASK) == 0x50 || (chg_sts0 & CHGIN_STATUS_MASK) == 0x30)
|
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status = POWER_SUPPLY_STATUS_CHARGING;
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else
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status = POWER_SUPPLY_STATUS_NOT_CHARGING;
|
|
|
|
#if EN_TEST_READ
|
|
s2mu205_test_read(charger->i2c);
|
|
#endif
|
|
return status;
|
|
}
|
|
|
|
static int s2mu205_get_vbus_status(
|
|
struct s2mu205_charger_data *charger)
|
|
{
|
|
int status = 0;
|
|
int ret;
|
|
u8 chg_sts;
|
|
|
|
ret = s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS0, &chg_sts);
|
|
|
|
|
|
if ((chg_sts & CHGIN_STATUS_MASK) == 0x50 || (chg_sts & CHGIN_STATUS_MASK) == 0x30)
|
|
status = 1;
|
|
else
|
|
status = 0;
|
|
|
|
return status;
|
|
}
|
|
|
|
static int s2mu205_get_otg_status(
|
|
struct s2mu205_charger_data *charger)
|
|
{
|
|
int status = 0;
|
|
int ret;
|
|
u8 otg_sts;
|
|
|
|
ret = s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS4, &otg_sts);
|
|
|
|
|
|
if ((otg_sts & 0x0c) == 0x0c)
|
|
status = 1;
|
|
else
|
|
status = 0;
|
|
|
|
return status;
|
|
}
|
|
|
|
static int s2mu205_get_charge_type(struct s2mu205_charger_data *charger)
|
|
{
|
|
int status = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
|
|
u8 ret;
|
|
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS5, &ret);
|
|
if (ret < 0)
|
|
pr_err("%s fail\n", __func__);
|
|
|
|
switch ((ret & BAT_STATUS_MASK) >> BAT_STATUS_SHIFT) {
|
|
case 0x5:
|
|
status = POWER_SUPPLY_CHARGE_TYPE_FAST;
|
|
break;
|
|
case 0x4:
|
|
/* pre-charge mode */
|
|
status = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
|
|
break;
|
|
}
|
|
|
|
if (charger->slow_charging)
|
|
status = POWER_SUPPLY_CHARGE_TYPE_SLOW;
|
|
|
|
return status;
|
|
}
|
|
|
|
static bool s2mu205_get_batt_present(struct s2mu205_charger_data *charger)
|
|
{
|
|
u8 ret;
|
|
|
|
/* Enable charger CLK for BAT_ID check */
|
|
/* s2mu205_update_reg(charger->i2c, 0xF1, 0x01, 0x01);
|
|
msleep(30);
|
|
*/
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS5, &ret);
|
|
if (ret < 0)
|
|
return false;
|
|
|
|
//s2mu205_update_reg(charger->i2c, 0xF1, 0x00, 0x01);
|
|
|
|
return (ret & BATID_STATUS_MASK) ? true : false;
|
|
}
|
|
|
|
static void s2mu205_wdt_clear(struct s2mu205_charger_data *charger)
|
|
{
|
|
u8 reg_data, chg_fault_status;
|
|
|
|
/* watchdog kick */
|
|
s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL13,
|
|
0x1 << WDT_CLR_SHIFT, WDT_CLR_MASK);
|
|
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS1, ®_data);
|
|
chg_fault_status = (reg_data & CHG_FAULT_STATUS_MASK) >> CHG_FAULT_STATUS_SHIFT;
|
|
|
|
if ((chg_fault_status == CHG_STATUS_WD_SUSPEND) ||
|
|
(chg_fault_status == CHG_STATUS_WD_RST)) {
|
|
pr_info("%s: watchdog error status(0x%02x,%d)\n",
|
|
__func__, reg_data, chg_fault_status);
|
|
if (charger->is_charging) {
|
|
pr_info("%s: toggle charger\n", __func__);
|
|
s2mu205_enable_charger_switch(charger, false);
|
|
s2mu205_enable_charger_switch(charger, true);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int s2mu205_get_charging_health(struct s2mu205_charger_data *charger)
|
|
{
|
|
|
|
u8 ret;
|
|
union power_supply_propval value;
|
|
struct power_supply *psy;
|
|
|
|
if (charger->is_charging)
|
|
s2mu205_wdt_clear(charger);
|
|
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS0, &ret);
|
|
pr_info("[DEBUG] %s: S2MU205_CHG_STATUS0 0x%x\n", __func__, ret);
|
|
if (ret < 0)
|
|
return POWER_SUPPLY_HEALTH_UNKNOWN;
|
|
|
|
ret = (ret & (CHGIN_STATUS_MASK)) >> CHGIN_STATUS_SHIFT;
|
|
|
|
switch (ret) {
|
|
case 0x03:
|
|
case 0x05:
|
|
charger->ovp = false;
|
|
charger->unhealth_cnt = 0;
|
|
return POWER_SUPPLY_HEALTH_GOOD;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
charger->unhealth_cnt++;
|
|
if (charger->unhealth_cnt < HEALTH_DEBOUNCE_CNT)
|
|
return POWER_SUPPLY_HEALTH_GOOD;
|
|
|
|
/* 005 need to check ovp & health count */
|
|
charger->unhealth_cnt = HEALTH_DEBOUNCE_CNT;
|
|
if (charger->ovp)
|
|
return POWER_SUPPLY_HEALTH_OVERVOLTAGE;
|
|
|
|
psy = power_supply_get_by_name("battery");
|
|
if (!psy)
|
|
return -EINVAL;
|
|
ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_ONLINE, &value);
|
|
if (ret < 0)
|
|
pr_err("%s: Fail to execute property\n", __func__);
|
|
|
|
if (value.intval == SEC_BATTERY_CABLE_PDIC)
|
|
return POWER_SUPPLY_HEALTH_UNDERVOLTAGE;
|
|
else
|
|
return POWER_SUPPLY_HEALTH_GOOD;
|
|
|
|
#if EN_TEST_READ
|
|
s2mu205_test_read(charger->i2c);
|
|
#endif
|
|
}
|
|
|
|
static int s2mu205_chg_get_property(struct power_supply *psy,
|
|
enum power_supply_property psp,
|
|
union power_supply_propval *val)
|
|
{
|
|
int chg_curr, aicr;
|
|
struct s2mu205_charger_data *charger =
|
|
power_supply_get_drvdata(psy);
|
|
|
|
switch (psp) {
|
|
case POWER_SUPPLY_PROP_ONLINE:
|
|
val->intval = charger->is_charging ? 1 : 0;
|
|
break;
|
|
case POWER_SUPPLY_PROP_STATUS:
|
|
val->intval = s2mu205_get_charging_status(charger);
|
|
break;
|
|
case POWER_SUPPLY_PROP_HEALTH:
|
|
val->intval = s2mu205_get_charging_health(charger);
|
|
break;
|
|
case POWER_SUPPLY_PROP_CURRENT_MAX:
|
|
val->intval = s2mu205_get_input_current_limit(charger);
|
|
break;
|
|
case POWER_SUPPLY_PROP_CURRENT_AVG:
|
|
case POWER_SUPPLY_PROP_CURRENT_NOW:
|
|
if (charger->charging_current) {
|
|
aicr = s2mu205_get_input_current_limit(charger);
|
|
chg_curr = s2mu205_get_fast_charging_current(charger);
|
|
val->intval = MINVAL(aicr, chg_curr);
|
|
} else
|
|
val->intval = 0;
|
|
break;
|
|
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
|
|
val->intval = s2mu205_get_fast_charging_current(charger);
|
|
break;
|
|
case POWER_SUPPLY_PROP_CURRENT_FULL:
|
|
val->intval = s2mu205_get_topoff_setting(charger);
|
|
break;
|
|
case POWER_SUPPLY_PROP_CHARGE_TYPE:
|
|
val->intval = s2mu205_get_charge_type(charger);
|
|
break;
|
|
case POWER_SUPPLY_PROP_VOLTAGE_MAX:
|
|
val->intval = s2mu205_get_regulation_voltage(charger);
|
|
break;
|
|
case POWER_SUPPLY_PROP_PRESENT:
|
|
val->intval = s2mu205_get_batt_present(charger);
|
|
break;
|
|
case POWER_SUPPLY_PROP_CHARGING_ENABLED:
|
|
val->intval = charger->is_charging;
|
|
break;
|
|
case POWER_SUPPLY_PROP_VBUS_CHECK:
|
|
val->intval = s2mu205_get_vbus_status(charger);
|
|
break;
|
|
case POWER_SUPPLY_PROP_OTG_CHECK:
|
|
val->intval = s2mu205_get_otg_status(charger);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int s2mu205_chg_set_property(struct power_supply *psy,
|
|
enum power_supply_property psp,
|
|
const union power_supply_propval *val)
|
|
{
|
|
struct s2mu205_charger_data *charger = power_supply_get_drvdata(psy);
|
|
enum power_supply_ext_property ext_psp = psp;
|
|
int buck_state = ENABLE;
|
|
union power_supply_propval value;
|
|
int ret;
|
|
|
|
switch (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;
|
|
if (charger->cable_type != SEC_BATTERY_CABLE_OTG) {
|
|
if (charger->cable_type == SEC_BATTERY_CABLE_NONE ||
|
|
charger->cable_type == SEC_BATTERY_CABLE_UNKNOWN) {
|
|
pr_err("[DEBUG]%s:[BATT] Type Battery\n", __func__);
|
|
value.intval = 0;
|
|
} else {
|
|
value.intval = 1;
|
|
}
|
|
|
|
psy = power_supply_get_by_name(charger->pdata->fuelgauge_name);
|
|
if (!psy)
|
|
return -EINVAL;
|
|
ret = power_supply_set_property(psy, POWER_SUPPLY_PROP_ENERGY_AVG, &value);
|
|
if (ret < 0)
|
|
pr_err("%s: Fail to execute property\n", __func__);
|
|
|
|
if (charger->cable_type == SEC_BATTERY_CABLE_NONE) {
|
|
/* At cable removal enable IVR IRQ if it was disabled */
|
|
if (charger->irq_ivr_enabled == 0) {
|
|
u8 reg_data;
|
|
|
|
charger->irq_ivr_enabled = 1;
|
|
/* Unmask IRQ */
|
|
s2mu205_update_reg(charger->i2c, S2MU205_CHG_INT2M,
|
|
0 << IVR_M_SHIFT, IVR_M_MASK);
|
|
enable_irq(charger->irq_ivr);
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_INT2M, ®_data);
|
|
pr_info("%s : enable ivr : 0x%x\n", __func__, reg_data);
|
|
}
|
|
}
|
|
} else {
|
|
pr_info("[DEBUG]%s: Cable Type OTG \n", __func__);
|
|
}
|
|
break;
|
|
case POWER_SUPPLY_PROP_CURRENT_MAX:
|
|
{
|
|
int input_current = val->intval;
|
|
|
|
s2mu205_set_input_current_limit(charger, input_current);
|
|
charger->input_current = input_current;
|
|
}
|
|
break;
|
|
case POWER_SUPPLY_PROP_CURRENT_AVG:
|
|
case POWER_SUPPLY_PROP_CURRENT_NOW:
|
|
pr_info("[DEBUG] %s: is_charging %d\n", __func__, charger->is_charging);
|
|
charger->charging_current = val->intval;
|
|
/* set charging current */
|
|
s2mu205_set_fast_charging_current(charger, charger->charging_current);
|
|
break;
|
|
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
|
|
break;
|
|
case POWER_SUPPLY_PROP_CURRENT_FULL:
|
|
charger->topoff_current = val->intval;
|
|
if (charger->pdata->chg_eoc_dualpath) {
|
|
s2mu205_set_topoff_current(charger, 1, val->intval);
|
|
s2mu205_set_topoff_current(charger, 2, 100);
|
|
} else
|
|
s2mu205_set_topoff_current(charger, 1, val->intval);
|
|
break;
|
|
case POWER_SUPPLY_PROP_VOLTAGE_MAX:
|
|
pr_info("[DEBUG]%s: float voltage(%d)\n", __func__, val->intval);
|
|
charger->pdata->chg_float_voltage = val->intval;
|
|
s2mu205_set_regulation_voltage(charger,
|
|
charger->pdata->chg_float_voltage);
|
|
break;
|
|
case POWER_SUPPLY_PROP_CHARGE_OTG_CONTROL:
|
|
s2mu205_charger_otg_control(charger, val->intval);
|
|
break;
|
|
case POWER_SUPPLY_PROP_CHARGING_ENABLED:
|
|
charger->charge_mode = val->intval;
|
|
|
|
psy = power_supply_get_by_name("battery");
|
|
if (!psy)
|
|
return -EINVAL;
|
|
ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_ONLINE, &value);
|
|
if (ret < 0)
|
|
pr_err("%s: Fail to execute property\n", __func__);
|
|
|
|
if (value.intval != SEC_BATTERY_CABLE_OTG) {
|
|
switch (charger->charge_mode) {
|
|
case SEC_BAT_CHG_MODE_BUCK_OFF:
|
|
buck_state = DISABLE;
|
|
case SEC_BAT_CHG_MODE_CHARGING_OFF:
|
|
charger->is_charging = false;
|
|
break;
|
|
case SEC_BAT_CHG_MODE_CHARGING:
|
|
charger->is_charging = true;
|
|
break;
|
|
}
|
|
|
|
if (buck_state)
|
|
s2mu205_enable_charger_switch(charger, charger->is_charging);
|
|
else
|
|
s2mu205_set_buck(charger, buck_state);
|
|
|
|
value.intval = charger->is_charging;
|
|
|
|
psy = power_supply_get_by_name(charger->pdata->fuelgauge_name);
|
|
if (!psy)
|
|
return -EINVAL;
|
|
ret = power_supply_set_property(psy, POWER_SUPPLY_PROP_CHARGING_ENABLED, &value);
|
|
if (ret < 0)
|
|
pr_err("%s: Fail to execute property\n", __func__);
|
|
} else {
|
|
pr_info("[DEBUG]%s: SKIP CHARGING CONTROL while OTG(%d)\n",
|
|
__func__, value.intval);
|
|
}
|
|
break;
|
|
#ifndef CONFIG_SEC_FACTORY
|
|
case POWER_SUPPLY_PROP_FACTORY_MODE:
|
|
/* prevent sudden power off when detected water is dried */
|
|
if (val->intval) {
|
|
pr_info("%s : 523K, 301K, 255K\n", __func__);
|
|
s2mu205_update_reg(charger->i2c, 0x95, 0x04, 0x04);
|
|
} else {
|
|
pr_info("%s : 619K, OPEN\n", __func__);
|
|
s2mu205_update_reg(charger->i2c, 0x95, 0x00, 0x04);
|
|
}
|
|
break;
|
|
#endif
|
|
case POWER_SUPPLY_PROP_ENERGY_NOW: /* Factory Mode Scenario */
|
|
if (val->intval) {
|
|
pr_info("%s: Factory Mode Setting, 523K/301K\n", __func__);
|
|
#if defined(CONFIG_LEDS_S2MU205_FLASH)
|
|
/* FLED driver TA only mode set, 0x5C[7:6] -> 0x02*/
|
|
s2mu205_set_operation_mode(S2MU205_FACTORY);
|
|
#endif
|
|
/* Factory Mode Setting Sequence */
|
|
s2mu205_set_regulation_vsys(charger, 4300);
|
|
s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL6, 0x80, 0x80);
|
|
s2mu205_update_reg(charger->i2c, 0x96, 0x0, 0x1);
|
|
s2mu205_update_reg(charger->i2c, 0xA7, 0x0, 0x1F);
|
|
s2mu205_update_reg(charger->i2c, 0xE5, 0x8, 0xF);
|
|
s2mu205_set_input_current_limit(charger, 2000);
|
|
|
|
value.intval = SEC_BAT_FGSRC_SWITCHING_OFF;
|
|
psy_do_property("s2mu205-fuelgauge", set,
|
|
POWER_SUPPLY_EXT_PROP_INBAT_VOLTAGE_FGSRC_SWITCHING, value);
|
|
|
|
} else {
|
|
pr_info("%s: Factory Mode Release, 619K\n", __func__);
|
|
#if defined(CONFIG_LEDS_S2MU205_FLASH)
|
|
/* FLED driver Auto control mode set, 0x5C[7:6] -> 0x00*/
|
|
s2mu205_set_operation_mode(S2MU205_NORMAL);
|
|
#endif
|
|
|
|
s2mu205_update_reg(charger->i2c, 0x2A, 0x40, 0xC0);
|
|
|
|
/* Factory Mode Setting Sequence */
|
|
s2mu205_update_reg(charger->i2c, 0xA7, 0x10, 0x1F);
|
|
s2mu205_update_reg(charger->i2c, 0x96, 0x1, 0x1);
|
|
s2mu205_update_reg(charger->i2c, 0xE5, 0xE, 0xF);
|
|
|
|
s2mu205_set_input_current_limit(charger, 2000);
|
|
s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL6, 0x0, 0x80);
|
|
s2mu205_set_regulation_vsys(charger, 4400);
|
|
|
|
value.intval = SEC_BAT_FGSRC_SWITCHING_ON;
|
|
psy_do_property("s2mu205-fuelgauge", set,
|
|
POWER_SUPPLY_EXT_PROP_INBAT_VOLTAGE_FGSRC_SWITCHING, value);
|
|
}
|
|
break;
|
|
case POWER_SUPPLY_PROP_INPUT_VOLTAGE_REGULATION: /* Bypass Mode Scenario */
|
|
if (val->intval) {
|
|
pr_info("%s: Disable VBUS UVLO\n", __func__);
|
|
s2mu205_update_reg(charger->i2c, 0x32, 0x8, 0x8);
|
|
msleep(100);
|
|
}
|
|
break;
|
|
case POWER_SUPPLY_PROP_AUTHENTIC: /* Bypass Mode Scenario */
|
|
if (val->intval) {
|
|
pr_info("%s: Bypass Mode\n", __func__);
|
|
|
|
/*
|
|
* Charger/muic interrupt can occur by entering Bypass mode
|
|
* Disable all interrupt mask for testing current measure.
|
|
*/
|
|
value.intval = true;
|
|
psy_do_property("muic-manager", set,
|
|
POWER_SUPPLY_EXT_PROP_CURRENT_MEASURE, value);
|
|
|
|
/* Enter Bypass */
|
|
s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL0, 0x10, 0x30);
|
|
s2mu205_write_reg(charger->i2c, 0x70, 0x0);
|
|
s2mu205_update_reg(charger->i2c, 0x8D, 0x1, 0x1);
|
|
s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL0, 0x30, 0x30);
|
|
s2mu205_update_reg(charger->i2c, 0xE5, 0xF, 0xF);
|
|
s2mu205_update_reg(charger->i2c, 0xEF, 0x0, 0x1);
|
|
s2mu205_update_reg(charger->i2c, 0xEA, 0x80, 0x80);
|
|
s2mu205_update_reg(charger->i2c, 0x6D, 0x80, 0x80);
|
|
|
|
psy_do_property("s2mu205-usbpd", set,
|
|
POWER_SUPPLY_PROP_AUTHENTIC, value);
|
|
|
|
pr_info("%s complete %d\n", __func__, __LINE__);
|
|
} else {
|
|
pr_info("%s: Exit Bypass Mode, Set Off\n", __func__);
|
|
s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL0, 0x00, REG_MODE_MASK);
|
|
}
|
|
break;
|
|
case POWER_SUPPLY_PROP_FUELGAUGE_RESET:
|
|
/*
|
|
s2mu205_update_reg(charger->i2c, 0xE3, 0x03 << 6, 0x03 << 6);
|
|
msleep(1000);
|
|
s2mu205_update_reg(charger->i2c, 0xE3, 0x00 << 6, 0x03 << 6);
|
|
msleep(50);
|
|
pr_info("%s: reset fuelgauge when surge occur!\n", __func__);
|
|
*/
|
|
break;
|
|
case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX:
|
|
{
|
|
u8 temp = 0;
|
|
if (!factory_mode) {
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS3, &temp);
|
|
if (temp & IVR_STATUS) {
|
|
pr_info("%s: IVR Start\n", __func__);
|
|
wake_lock(&charger->ivr_wake_lock);
|
|
/* Mask IRQ */
|
|
s2mu205_update_reg(charger->i2c,
|
|
S2MU205_CHG_INT2M, 1 << IVR_M_SHIFT, IVR_M_MASK);
|
|
queue_delayed_work(charger->charger_wqueue, &charger->ivr_work,
|
|
msecs_to_jiffies(IVR_WORK_DELAY));
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
case POWER_SUPPLY_PROP_MAX ... POWER_SUPPLY_EXT_PROP_MAX:
|
|
switch (ext_psp) {
|
|
case POWER_SUPPLY_EXT_PROP_FACTORY_VOLTAGE_REGULATION:
|
|
/* enable EN_JIG_AP */
|
|
pr_info("%s: factory voltage regulation (%d)\n", __func__, val->intval);
|
|
s2mu205_set_regulation_vsys(charger, val->intval);
|
|
s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL6, 0x80, 0x80);
|
|
break;
|
|
case POWER_SUPPLY_EXT_PROP_CURRENT_MEASURE: /* From Nomal Mode to Bypass Mode with keystring on run-time */
|
|
if (val->intval) {
|
|
pr_info("%s: Bypass Mode for Current Measure\n", __func__);
|
|
|
|
/*
|
|
* Charger/muic interrupt can occur by entering Bypass mode
|
|
* Disable all interrupt mask for testing current measure.
|
|
*/
|
|
value.intval = true;
|
|
psy_do_property("muic-manager", set,
|
|
POWER_SUPPLY_EXT_PROP_CURRENT_MEASURE, value);
|
|
|
|
/* VBUS UVLO disable */
|
|
s2mu205_update_reg(charger->i2c, 0x32, 0xC0, 0xC0);
|
|
/* T_DET_CHGIN_TO_BAT */
|
|
s2mu205_update_reg(charger->i2c, 0x32, 0x0C, 0x0C);
|
|
|
|
/* Bypass Mode Setting Sequence */
|
|
s2mu205_update_reg(charger->i2c, 0x8D, 0x1, 0x1);
|
|
s2mu205_write_reg(charger->i2c, 0x70, 0x0);
|
|
s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL0, 0x30, 0x30);
|
|
|
|
msleep(100);
|
|
|
|
/* QBAT off for prevent SMPL when detach cable */
|
|
s2mu205_update_reg(charger->i2c, 0x2A, 0xC0, 0xC0);
|
|
s2mu205_update_reg(charger->i2c, 0x96, 0x0, 0x1);
|
|
s2mu205_update_reg(charger->i2c, 0x31, 0x0, 0x3);
|
|
|
|
s2mu205_update_reg(charger->i2c, 0xE5, 0x8, 0xF);
|
|
|
|
} else {
|
|
pr_info("%s: Exit Bypass Mode for Current Measure\n", __func__);
|
|
s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL0, 0x00, REG_MODE_MASK);
|
|
}
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
break;
|
|
case POWER_SUPPLY_PROP_SET_UVLO:
|
|
if (val->intval)
|
|
s2mu205_update_reg(charger->i2c, 0x90, 0x00, 0x03);
|
|
else
|
|
s2mu205_update_reg(charger->i2c, 0x90, 0x02, 0x03);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int s2mu205_otg_get_property(struct power_supply *psy,
|
|
enum power_supply_property psp,
|
|
union power_supply_propval *val)
|
|
{
|
|
struct s2mu205_charger_data *charger = power_supply_get_drvdata(psy);
|
|
u8 reg;
|
|
|
|
switch (psp) {
|
|
case POWER_SUPPLY_PROP_ONLINE:
|
|
val->intval = charger->otg_on;
|
|
break;
|
|
case POWER_SUPPLY_PROP_CHARGE_POWERED_OTG_CONTROL:
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS4, ®);
|
|
pr_info("%s: S2MU205_CHG_STATUS4 : 0x%X\n", __func__, reg);
|
|
if ((reg & 0xC0) == 0x80)
|
|
val->intval = 1;
|
|
else
|
|
val->intval = 0;
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_CTRL0, ®);
|
|
pr_info("%s: S2MU205_CHG_CTRL0 : 0x%X\n", __func__, reg);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int s2mu205_otg_set_property(struct power_supply *psy,
|
|
enum power_supply_property psp,
|
|
const union power_supply_propval *val)
|
|
{
|
|
struct s2mu205_charger_data *charger = power_supply_get_drvdata(psy);
|
|
union power_supply_propval value;
|
|
int ret;
|
|
|
|
switch (psp) {
|
|
case POWER_SUPPLY_PROP_ONLINE:
|
|
value.intval = val->intval;
|
|
pr_info("%s: OTG %s\n", __func__, value.intval > 0 ? "ON" : "OFF");
|
|
|
|
psy = power_supply_get_by_name(charger->pdata->charger_name);
|
|
if (!psy)
|
|
return -EINVAL;
|
|
ret = power_supply_set_property(psy, POWER_SUPPLY_PROP_CHARGE_OTG_CONTROL, &value);
|
|
if (ret < 0)
|
|
pr_err("%s: Fail to execute property\n", __func__);
|
|
|
|
power_supply_changed(charger->psy_otg);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void s2mu205_charger_otg_vbus_work(struct work_struct *work)
|
|
{
|
|
struct s2mu205_charger_data *charger = container_of(work,
|
|
struct s2mu205_charger_data,
|
|
otg_vbus_work.work);
|
|
|
|
s2mu205_write_reg(charger->i2c, S2MU205_CHG_CTRL11, 0x16);
|
|
}
|
|
|
|
#if EN_BAT_DET_IRQ
|
|
/* s2mu205 interrupt service routine */
|
|
static irqreturn_t s2mu205_det_bat_isr(int irq, void *data)
|
|
{
|
|
struct s2mu205_charger_data *charger = data;
|
|
u8 val;
|
|
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS5, &val);
|
|
if ((val & BATID_STATUS_MASK) == 0) {
|
|
s2mu205_enable_charger_switch(charger, 0);
|
|
pr_err("charger-off if battery removed\n");
|
|
}
|
|
return IRQ_HANDLED;
|
|
}
|
|
#endif
|
|
|
|
static irqreturn_t s2mu205_done_isr(int irq, void *data)
|
|
{
|
|
struct s2mu205_charger_data *charger = data;
|
|
u8 val;
|
|
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS0, &val);
|
|
pr_info("%s , %02x\n", __func__, val);
|
|
if (val & (DONE_STATUS_MASK)) {
|
|
pr_err("add self chg done\n");
|
|
/* add chg done code here */
|
|
}
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t s2mu205_chg_isr(int irq, void *data)
|
|
{
|
|
struct s2mu205_charger_data *charger = data;
|
|
u8 val;
|
|
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS0, &val);
|
|
pr_info("%s , %02x\n", __func__, val);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
|
|
static irqreturn_t s2mu205_chg_fault_isr(int irq, void *data)
|
|
{
|
|
struct s2mu205_charger_data *charger = data;
|
|
// union power_supply_propval value;
|
|
u8 val;
|
|
u8 fault;
|
|
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS1, &val);
|
|
pr_info("%s , %02x\n", __func__, val);
|
|
|
|
fault = (val & CHG_FAULT_STATUS_MASK) >> CHG_FAULT_STATUS_SHIFT;
|
|
|
|
/* TODO : need to check previous history */
|
|
/*
|
|
if (fault == CHG_STATUS_WD_SUSPEND || fault == CHG_STATUS_WD_RST) {
|
|
value.intval = 1;
|
|
pr_info("%s, reset USBPD\n", __func__);
|
|
psy_do_property("s2mu205-usbpd", set,
|
|
POWER_SUPPLY_PROP_USBPD_RESET, value);
|
|
}
|
|
*/
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t s2mu205_ovp_isr(int irq, void *data)
|
|
{
|
|
struct s2mu205_charger_data *charger = data;
|
|
u8 val;
|
|
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS0, &val);
|
|
pr_info("%s ovp %02x\n", __func__, val);
|
|
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS1, &val);
|
|
pr_info("%s ovp1 %02x\n", __func__, val);
|
|
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS2, &val);
|
|
pr_info("%s ovp2 %02x\n", __func__, val);
|
|
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS3, &val);
|
|
pr_info("%s ovp3 %02x\n", __func__, val);
|
|
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS4, &val);
|
|
pr_info("%s ovp4 %02x\n", __func__, val);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static bool s2mu205_check_slow_charging(struct s2mu205_charger_data *charger,
|
|
int input_current)
|
|
{
|
|
pr_info("%s: charger->cable_type %d, input_current %d\n",
|
|
__func__, charger->cable_type, input_current);
|
|
|
|
/* under 400mA considered as slow charging concept for VZW */
|
|
if (input_current <= charger->pdata->slow_charging_current &&
|
|
charger->cable_type != SEC_BATTERY_CABLE_NONE) {
|
|
union power_supply_propval value;
|
|
|
|
charger->slow_charging = true;
|
|
pr_info("%s: slow charging on : input current(%dmA), cable type(%d)\n",
|
|
__func__, input_current, charger->cable_type);
|
|
value.intval = POWER_SUPPLY_CHARGE_TYPE_SLOW;
|
|
psy_do_property("battery", set,
|
|
POWER_SUPPLY_PROP_CHARGE_TYPE, value);
|
|
} else
|
|
charger->slow_charging = false;
|
|
|
|
return charger->slow_charging;
|
|
}
|
|
|
|
static void reduce_input_current(struct s2mu205_charger_data *charger)
|
|
{
|
|
int old_input_current, new_input_current;
|
|
int data;
|
|
|
|
old_input_current = s2mu205_get_input_current_limit(charger);
|
|
new_input_current = (old_input_current > MINIMUM_INPUT_CURRENT + REDUCE_CURRENT_STEP) ?
|
|
(old_input_current - REDUCE_CURRENT_STEP) : MINIMUM_INPUT_CURRENT;
|
|
|
|
if (old_input_current <= new_input_current) {
|
|
pr_info("%s: Same or less new input current:(%d, %d, %d)\n", __func__,
|
|
old_input_current, new_input_current, charger->input_current);
|
|
} else {
|
|
pr_info("%s: input currents:(%d, %d, %d)\n", __func__,
|
|
old_input_current, new_input_current, charger->input_current);
|
|
|
|
data = (new_input_current - 50) / 25;
|
|
s2mu205_update_reg(charger->i2c, S2MU205_CHG_CTRL1,
|
|
data << SET_IIN_CHGIN_ILIM_SHIFT, SET_IIN_CHGIN_ILIM_MASK);
|
|
|
|
charger->input_current = s2mu205_get_input_current_limit(charger);
|
|
}
|
|
charger->ivr_on = true;
|
|
}
|
|
|
|
static void s2mu205_ivr_irq_work(struct work_struct *work)
|
|
{
|
|
struct s2mu205_charger_data *charger = container_of(work,
|
|
struct s2mu205_charger_data, ivr_work.work);
|
|
u8 ivr_state;
|
|
int ret;
|
|
int ivr_cnt = 0;
|
|
|
|
pr_info("%s:\n", __func__);
|
|
|
|
if (charger->cable_type == SEC_BATTERY_CABLE_NONE) {
|
|
u8 ivr_mask;
|
|
|
|
pr_info("%s : skip\n", __func__);
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_INT2M, &ivr_mask);
|
|
if (ivr_mask & 0x02) {
|
|
/* Unmask IRQ */
|
|
s2mu205_update_reg(charger->i2c, S2MU205_CHG_INT2M,
|
|
0 << IVR_M_SHIFT, IVR_M_MASK);
|
|
}
|
|
wake_unlock(&charger->ivr_wake_lock);
|
|
return;
|
|
}
|
|
|
|
ret = s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS3, &ivr_state);
|
|
if (ret < 0) {
|
|
wake_unlock(&charger->ivr_wake_lock);
|
|
pr_info("%s : I2C error\n", __func__);
|
|
/* Unmask IRQ */
|
|
s2mu205_update_reg(charger->i2c, S2MU205_CHG_INT2M,
|
|
0 << IVR_M_SHIFT, IVR_M_MASK);
|
|
return;
|
|
}
|
|
pr_info("%s: ivr_status 0x13:0x%02x\n", __func__, ivr_state);
|
|
|
|
mutex_lock(&charger->charger_mutex);
|
|
|
|
while ((ivr_state & IVR_STATUS) &&
|
|
charger->cable_type != SEC_BATTERY_CABLE_NONE) {
|
|
|
|
if (s2mu205_read_reg(charger->i2c, S2MU205_CHG_STATUS3, &ivr_state)) {
|
|
pr_err("%s: Error reading S2MU205_CHG_STATUS3\n", __func__);
|
|
break;
|
|
}
|
|
pr_info("%s: ivr_status 0x13:0x%02x\n", __func__, ivr_state);
|
|
|
|
if (++ivr_cnt >= 2) {
|
|
reduce_input_current(charger);
|
|
ivr_cnt = 0;
|
|
}
|
|
msleep(50);
|
|
|
|
if (!(ivr_state & IVR_STATUS)) {
|
|
pr_info("%s: EXIT IVR WORK: check value (0x13:0x%02x, input current:%d)\n", __func__,
|
|
ivr_state, charger->input_current);
|
|
break;
|
|
}
|
|
|
|
if (s2mu205_get_input_current_limit(charger) <= MINIMUM_INPUT_CURRENT)
|
|
break;
|
|
}
|
|
|
|
if (charger->ivr_on) {
|
|
union power_supply_propval value;
|
|
|
|
if (is_not_wireless_type(charger->cable_type))
|
|
s2mu205_check_slow_charging(charger, charger->input_current);
|
|
|
|
if ((charger->irq_ivr_enabled == 1) &&
|
|
(charger->input_current <= MINIMUM_INPUT_CURRENT) &&
|
|
(charger->slow_charging)) {
|
|
/* Disable IVR IRQ, can't reduce current any more */
|
|
u8 reg_data;
|
|
|
|
charger->irq_ivr_enabled = 0;
|
|
disable_irq_nosync(charger->irq_ivr);
|
|
/* Mask IRQ */
|
|
s2mu205_update_reg(charger->i2c,
|
|
S2MU205_CHG_INT2M, 1 << IVR_M_SHIFT, IVR_M_MASK);
|
|
s2mu205_read_reg(charger->i2c, S2MU205_CHG_INT2M, ®_data);
|
|
pr_info("%s : disable ivr : 0x%x\n", __func__, reg_data);
|
|
}
|
|
|
|
value.intval = s2mu205_get_input_current_limit(charger);
|
|
psy_do_property("battery", set,
|
|
POWER_SUPPLY_EXT_PROP_AICL_CURRENT, value);
|
|
}
|
|
|
|
if (charger->irq_ivr_enabled == 1) {
|
|
/* Unmask IRQ */
|
|
s2mu205_update_reg(charger->i2c, S2MU205_CHG_INT2M,
|
|
0 << IVR_M_SHIFT, IVR_M_MASK);
|
|
}
|
|
mutex_unlock(&charger->charger_mutex);
|
|
wake_unlock(&charger->ivr_wake_lock);
|
|
}
|
|
|
|
static irqreturn_t s2mu205_ivr_isr(int irq, void *data)
|
|
{
|
|
struct s2mu205_charger_data *charger = data;
|
|
|
|
pr_info("%s: Start\n", __func__);
|
|
wake_lock(&charger->ivr_wake_lock);
|
|
/* Mask IRQ */
|
|
s2mu205_update_reg(charger->i2c,
|
|
S2MU205_CHG_INT2M, 1 << IVR_M_SHIFT, IVR_M_MASK);
|
|
queue_delayed_work(charger->charger_wqueue, &charger->ivr_work,
|
|
msecs_to_jiffies(IVR_WORK_DELAY));
|
|
pr_info("%s: irq(%d)\n", __func__, irq);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int s2mu205_charger_parse_dt(struct device *dev,
|
|
struct s2mu205_charger_platform_data *pdata)
|
|
{
|
|
struct device_node *np = of_find_node_by_name(NULL, "s2mu205-charger");
|
|
int ret = 0;
|
|
|
|
if (!np) {
|
|
pr_err("%s np NULL(s2mu205-charger)\n", __func__);
|
|
} else {
|
|
ret = of_property_read_u32(np, "battery,chg_switching_freq",
|
|
&pdata->chg_switching_freq);
|
|
if (ret < 0)
|
|
pr_info("%s: Charger switching FRQ is Empty\n", __func__);
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
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->chg_eoc_dualpath = of_property_read_bool(np,
|
|
"battery,chg_eoc_dualpath");
|
|
}
|
|
|
|
np = of_find_node_by_name(NULL, "sec-multi-charger");
|
|
if (!np) {
|
|
pr_err("%s np NULL(sec-multi-charger)\n", __func__);
|
|
} else {
|
|
ret = of_property_read_string(np,
|
|
"charger,main_charger",
|
|
(char const **)&pdata->charger_name);
|
|
if (ret < 0)
|
|
pr_info("%s: Charger name is Empty\n", __func__);
|
|
}
|
|
#if 0
|
|
p = of_get_property(np, "battery,input_current_limit", &len);
|
|
if (!p)
|
|
return 1;
|
|
|
|
len = len / sizeof(u32);
|
|
|
|
pdata->charging_current =
|
|
kzalloc(sizeof(sec_charging_current_t) * len,
|
|
GFP_KERNEL);
|
|
|
|
for (i = 0; i < len; i++) {
|
|
ret = of_property_read_u32_index(np,
|
|
"battery,input_current_limit", i,
|
|
&pdata->charging_current[i].input_current_limit);
|
|
if (ret)
|
|
pr_info("%s : Input_current_limit is Empty\n",
|
|
__func__);
|
|
|
|
ret = of_property_read_u32_index(np,
|
|
"battery,fast_charging_current", i,
|
|
&pdata->charging_current[i].fast_charging_current);
|
|
if (ret)
|
|
pr_info("%s : Fast charging current is Empty\n",
|
|
__func__);
|
|
|
|
ret = of_property_read_u32_index(np,
|
|
"battery,full_check_current", i,
|
|
&pdata->charging_current[i].full_check_current);
|
|
if (ret)
|
|
pr_info("%s : Full check current is Empty\n",
|
|
__func__);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
pr_info("%s DT file parsed succesfully, %d\n", __func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
/* if need to set s2mu205 pdata */
|
|
static const struct of_device_id s2mu205_charger_match_table[] = {
|
|
{ .compatible = "samsung,s2mu205-charger",},
|
|
{},
|
|
};
|
|
|
|
static int s2mu205_charger_probe(struct platform_device *pdev)
|
|
{
|
|
struct s2mu205_dev *s2mu205 = dev_get_drvdata(pdev->dev.parent);
|
|
struct s2mu205_platform_data *pdata = dev_get_platdata(s2mu205->dev);
|
|
struct s2mu205_charger_data *charger;
|
|
struct power_supply_config psy_cfg = {};
|
|
int ret = 0;
|
|
|
|
pr_info("%s:[BATT] S2MU205 Charger driver probe\n", __func__);
|
|
charger = kzalloc(sizeof(*charger), GFP_KERNEL);
|
|
if (!charger)
|
|
return -ENOMEM;
|
|
|
|
mutex_init(&charger->charger_mutex);
|
|
charger->otg_on = false;
|
|
charger->ivr_on = false;
|
|
charger->slow_charging = false;
|
|
charger->cable_type = SEC_BATTERY_CABLE_NONE;
|
|
|
|
charger->dev = &pdev->dev;
|
|
charger->i2c = s2mu205->i2c;
|
|
|
|
charger->pdata = devm_kzalloc(&pdev->dev, sizeof(*(charger->pdata)),
|
|
GFP_KERNEL);
|
|
if (!charger->pdata) {
|
|
ret = -ENOMEM;
|
|
goto err_parse_dt_nomem;
|
|
}
|
|
ret = s2mu205_charger_parse_dt(&pdev->dev, charger->pdata);
|
|
if (ret < 0)
|
|
goto err_parse_dt;
|
|
|
|
platform_set_drvdata(pdev, charger);
|
|
|
|
if (charger->pdata->charger_name == NULL)
|
|
charger->pdata->charger_name = "s2mu205-charger";
|
|
if (charger->pdata->fuelgauge_name == NULL)
|
|
charger->pdata->fuelgauge_name = "s2mu205-fuelgauge";
|
|
|
|
charger->psy_chg_desc.name = charger->pdata->charger_name;
|
|
charger->psy_chg_desc.type = POWER_SUPPLY_TYPE_UNKNOWN;
|
|
charger->psy_chg_desc.get_property = s2mu205_chg_get_property;
|
|
charger->psy_chg_desc.set_property = s2mu205_chg_set_property;
|
|
charger->psy_chg_desc.properties = s2mu205_charger_props;
|
|
charger->psy_chg_desc.num_properties = ARRAY_SIZE(s2mu205_charger_props);
|
|
|
|
charger->psy_otg_desc.name = "otg";
|
|
charger->psy_otg_desc.type = POWER_SUPPLY_TYPE_OTG;
|
|
charger->psy_otg_desc.get_property = s2mu205_otg_get_property;
|
|
charger->psy_otg_desc.set_property = s2mu205_otg_set_property;
|
|
charger->psy_otg_desc.properties = s2mu205_otg_props;
|
|
charger->psy_otg_desc.num_properties = ARRAY_SIZE(s2mu205_otg_props);
|
|
|
|
s2mu205_chg_init(charger);
|
|
charger->input_current = s2mu205_get_input_current_limit(charger);
|
|
charger->charging_current = s2mu205_get_fast_charging_current(charger);
|
|
|
|
psy_cfg.drv_data = charger;
|
|
psy_cfg.supplied_to = s2mu205_supplied_to;
|
|
psy_cfg.num_supplicants = ARRAY_SIZE(s2mu205_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 = 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;
|
|
}
|
|
|
|
charger->charger_wqueue = create_singlethread_workqueue("charger-wq");
|
|
if (!charger->charger_wqueue) {
|
|
pr_info("%s: failed to create wq.\n", __func__);
|
|
ret = -ESRCH;
|
|
goto err_create_wq;
|
|
}
|
|
|
|
wake_lock_init(&charger->ivr_wake_lock, WAKE_LOCK_SUSPEND,
|
|
"charger-ivr");
|
|
INIT_DELAYED_WORK(&charger->otg_vbus_work, s2mu205_charger_otg_vbus_work);
|
|
INIT_DELAYED_WORK(&charger->ivr_work, s2mu205_ivr_irq_work);
|
|
|
|
/*
|
|
* irq request
|
|
* if you need to add irq , please refer below code.
|
|
*/
|
|
charger->irq_sys = pdata->irq_base + S2MU205_CHG1_IRQ_SYS;
|
|
ret = request_threaded_irq(charger->irq_sys, NULL,
|
|
s2mu205_ovp_isr, 0, "sys-irq", charger);
|
|
if (ret < 0) {
|
|
dev_err(s2mu205->dev, "%s: Fail to request SYS in IRQ: %d: %d\n",
|
|
__func__, charger->irq_sys, ret);
|
|
goto err_reg_irq;
|
|
}
|
|
|
|
#if EN_BAT_DET_IRQ
|
|
charger->irq_det_bat = pdata->irq_base + S2MU205_CHG2_IRQ_DET_BAT;
|
|
ret = request_threaded_irq(charger->irq_det_bat, NULL,
|
|
s2mu205_det_bat_isr, 0, "det_bat-irq", charger);
|
|
if (ret < 0) {
|
|
dev_err(s2mu205->dev, "%s: Fail to request DET_BAT in IRQ: %d: %d\n",
|
|
__func__, charger->irq_det_bat, ret);
|
|
goto err_reg_irq;
|
|
}
|
|
#endif
|
|
|
|
#if EN_CHG1_IRQ_CHGIN
|
|
charger->irq_chgin = pdata->irq_base + S2MU205_CHG1_IRQ_CHGIN;
|
|
ret = request_threaded_irq(charger->irq_chgin, NULL,
|
|
s2mu205_chg_isr, 0, "chgin-irq", charger);
|
|
if (ret < 0) {
|
|
dev_err(s2mu205->dev, "%s: Fail to request CHGIN in IRQ: %d: %d\n",
|
|
__func__, charger->irq_chgin, ret);
|
|
goto err_reg_irq;
|
|
}
|
|
#endif
|
|
|
|
charger->irq_rst = pdata->irq_base + S2MU205_CHG1_IRQ_CHG_RSTART;
|
|
ret = request_threaded_irq(charger->irq_rst, NULL,
|
|
s2mu205_chg_isr, 0, "restart-irq", charger);
|
|
if (ret < 0) {
|
|
dev_err(s2mu205->dev, "%s: Fail to request CHG_Restart in IRQ: %d: %d\n",
|
|
__func__, charger->irq_rst, ret);
|
|
goto err_reg_irq;
|
|
}
|
|
|
|
charger->irq_done = pdata->irq_base + S2MU205_CHG1_IRQ_DONE;
|
|
ret = request_threaded_irq(charger->irq_done, NULL,
|
|
s2mu205_done_isr, 0, "done-irq", charger);
|
|
if (ret < 0) {
|
|
dev_err(s2mu205->dev, "%s: Fail to request DONE in IRQ: %d: %d\n",
|
|
__func__, charger->irq_done, ret);
|
|
goto err_reg_irq;
|
|
}
|
|
|
|
charger->irq_chg_fault = pdata->irq_base + S2MU205_CHG1_IRQ_CHG_Fault;
|
|
ret = request_threaded_irq(charger->irq_chg_fault, NULL,
|
|
s2mu205_chg_fault_isr, 0, "chg_fault-irq", charger);
|
|
if (ret < 0) {
|
|
dev_err(s2mu205->dev, "%s: Fail to request CHG_Fault in IRQ: %d: %d\n",
|
|
__func__, charger->irq_chg_fault, ret);
|
|
goto err_reg_irq;
|
|
}
|
|
|
|
charger->irq_ivr = pdata->irq_base + S2MU205_CHG2_IRQ_IVR;
|
|
charger->irq_ivr_enabled = 1;
|
|
ret = request_threaded_irq(charger->irq_ivr, NULL,
|
|
s2mu205_ivr_isr, 0, "ivr-irq", charger);
|
|
if (ret < 0) {
|
|
pr_err("%s: Fail to request IVR_INT IRQ: %d: %d\n",
|
|
__func__, charger->irq_ivr, ret);
|
|
charger->irq_ivr_enabled = -1;
|
|
goto err_reg_irq;
|
|
}
|
|
|
|
/* Do max charging by freq. change, when duty is max */
|
|
s2mu205_update_reg(charger->i2c, 0x7A, 0x1 << 4, 0x1 << 4);
|
|
#if EN_TEST_READ
|
|
s2mu205_test_read(charger->i2c);
|
|
#endif
|
|
pr_info("%s:[BATT] S2MU205 charger driver loaded OK\n", __func__);
|
|
|
|
return 0;
|
|
|
|
err_reg_irq:
|
|
destroy_workqueue(charger->charger_wqueue);
|
|
err_create_wq:
|
|
power_supply_unregister(charger->psy_otg);
|
|
err_power_supply_register_otg:
|
|
power_supply_unregister(charger->psy_chg);
|
|
err_power_supply_register:
|
|
err_parse_dt:
|
|
err_parse_dt_nomem:
|
|
mutex_destroy(&charger->charger_mutex);
|
|
kfree(charger);
|
|
return ret;
|
|
}
|
|
|
|
static int s2mu205_charger_remove(struct platform_device *pdev)
|
|
{
|
|
struct s2mu205_charger_data *charger =
|
|
platform_get_drvdata(pdev);
|
|
|
|
power_supply_unregister(charger->psy_chg);
|
|
mutex_destroy(&charger->charger_mutex);
|
|
kfree(charger);
|
|
return 0;
|
|
}
|
|
|
|
#if defined CONFIG_PM
|
|
static int s2mu205_charger_suspend(struct device *dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int s2mu205_charger_resume(struct device *dev)
|
|
{
|
|
return 0;
|
|
}
|
|
#else
|
|
#define s2mu205_charger_suspend NULL
|
|
#define s2mu205_charger_resume NULL
|
|
#endif
|
|
|
|
static void s2mu205_charger_shutdown(struct device *dev)
|
|
{
|
|
pr_info("%s: S2MU205 Charger driver shutdown\n", __func__);
|
|
}
|
|
|
|
static SIMPLE_DEV_PM_OPS(s2mu205_charger_pm_ops, s2mu205_charger_suspend,
|
|
s2mu205_charger_resume);
|
|
|
|
static struct platform_driver s2mu205_charger_driver = {
|
|
.driver = {
|
|
.name = "s2mu205-charger",
|
|
.owner = THIS_MODULE,
|
|
.of_match_table = s2mu205_charger_match_table,
|
|
.pm = &s2mu205_charger_pm_ops,
|
|
.shutdown = s2mu205_charger_shutdown,
|
|
},
|
|
.probe = s2mu205_charger_probe,
|
|
.remove = s2mu205_charger_remove,
|
|
};
|
|
|
|
static int __init s2mu205_charger_init(void)
|
|
{
|
|
int ret = 0;
|
|
pr_info("%s start\n", __func__);
|
|
ret = platform_driver_register(&s2mu205_charger_driver);
|
|
|
|
return ret;
|
|
}
|
|
module_init(s2mu205_charger_init);
|
|
|
|
static void __exit s2mu205_charger_exit(void)
|
|
{
|
|
platform_driver_unregister(&s2mu205_charger_driver);
|
|
}
|
|
module_exit(s2mu205_charger_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Samsung Electronics");
|
|
MODULE_DESCRIPTION("Charger driver for S2MU205");
|