/* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and * only version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * */ #define pr_fmt(fmt) "%s: " fmt, __func__ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* Interrupt offsets */ #define INT_RT_STS(base) (base + 0x10) #define INT_SET_TYPE(base) (base + 0x11) #define INT_POLARITY_HIGH(base) (base + 0x12) #define INT_POLARITY_LOW(base) (base + 0x13) #define INT_LATCHED_CLR(base) (base + 0x14) #define INT_EN_SET(base) (base + 0x15) #define INT_EN_CLR(base) (base + 0x16) #define INT_LATCHED_STS(base) (base + 0x18) #define INT_PENDING_STS(base) (base + 0x19) #define INT_MID_SEL(base) (base + 0x1A) #define INT_PRIORITY(base) (base + 0x1B) /* Peripheral register offsets */ #define CHGR_CHG_OPTION 0x08 #define CHGR_ATC_STATUS 0x0A #define CHGR_VBAT_STATUS 0x0B #define CHGR_IBAT_BMS 0x0C #define CHGR_IBAT_STS 0x0D #define CHGR_VDD_MAX 0x40 #define CHGR_VDD_SAFE 0x41 #define CHGR_VDD_MAX_STEP 0x42 #define CHGR_IBAT_MAX 0x44 #define CHGR_IBAT_SAFE 0x45 #define CHGR_VIN_MIN 0x47 #define CHGR_VIN_MIN_STEP 0x48 #define CHGR_CHG_CTRL 0x49 #define CHGR_CHG_FAILED 0x4A #define CHGR_ATC_CTRL 0x4B #define CHGR_ATC_FAILED 0x4C #define CHGR_VBAT_TRKL 0x50 #define CHGR_VBAT_WEAK 0x52 #define CHGR_IBAT_ATC_A 0x54 #define CHGR_IBAT_ATC_B 0x55 #define CHGR_IBAT_TERM_CHGR 0x5B #define CHGR_IBAT_TERM_BMS 0x5C #define CHGR_VBAT_DET 0x5D #define CHGR_TTRKL_MAX 0x5F #define CHGR_TTRKL_MAX_EN 0x60 #define CHGR_TCHG_MAX 0x61 #define CHGR_CHG_WDOG_TIME 0x62 #define CHGR_CHG_WDOG_DLY 0x63 #define CHGR_CHG_WDOG_PET 0x64 #define CHGR_CHG_WDOG_EN 0x65 #define CHGR_IR_DROP_COMPEN 0x67 #define CHGR_I_MAX_REG 0x44 #define CHGR_USB_USB_SUSP 0x47 #define CHGR_USB_USB_OTG_CTL 0x48 #define CHGR_USB_ENUM_T_STOP 0x4E #define CHGR_CHG_TEMP_THRESH 0x66 #define CHGR_BAT_IF_PRES_STATUS 0x08 #define CHGR_STATUS 0x09 #define CHGR_BAT_IF_VCP 0x42 #define CHGR_BAT_IF_BATFET_CTRL1 0x90 #define CHGR_MISC_BOOT_DONE 0x42 #define CHGR_BUCK_COMPARATOR_OVRIDE_1 0xEB #define CHGR_BUCK_COMPARATOR_OVRIDE_3 0xED #define CHGR_BUCK_BCK_VBAT_REG_MODE 0x74 #define MISC_REVISION2 0x01 #define USB_OVP_CTL 0x42 #define USB_CHG_GONE_REV_BST 0xED #define BUCK_VCHG_OV 0x77 #define BUCK_TEST_SMBC_MODES 0xE6 #define SEC_ACCESS 0xD0 #define BAT_IF_VREF_BAT_THM_CTRL 0x4A #define BAT_IF_BPD_CTRL 0x48 #define BOOST_VSET 0x41 #define BOOST_ENABLE_CONTROL 0x46 #define COMP_OVR1 0xEA #define REG_OFFSET_PERP_SUBTYPE 0x05 /* SMBB peripheral subtype values */ #define SMBB_CHGR_SUBTYPE 0x01 #define SMBB_BUCK_SUBTYPE 0x02 #define SMBB_BAT_IF_SUBTYPE 0x03 #define SMBB_USB_CHGPTH_SUBTYPE 0x04 #define SMBB_DC_CHGPTH_SUBTYPE 0x05 #define SMBB_BOOST_SUBTYPE 0x06 #define SMBB_MISC_SUBTYPE 0x07 /* SMBB peripheral subtype values */ #define SMBBP_CHGR_SUBTYPE 0x31 #define SMBBP_BUCK_SUBTYPE 0x32 #define SMBBP_BAT_IF_SUBTYPE 0x33 #define SMBBP_USB_CHGPTH_SUBTYPE 0x34 #define SMBBP_BOOST_SUBTYPE 0x36 #define SMBBP_MISC_SUBTYPE 0x37 /* SMBCL peripheral subtype values */ #define SMBCL_CHGR_SUBTYPE 0x41 #define SMBCL_BUCK_SUBTYPE 0x42 #define SMBCL_BAT_IF_SUBTYPE 0x43 #define SMBCL_USB_CHGPTH_SUBTYPE 0x44 #define SMBCL_MISC_SUBTYPE 0x47 #define QPNP_CHARGER_DEV_NAME "qcom,qpnp-charger" /* Status bits and masks */ #define CHGR_BOOT_DONE BIT(7) #define CHGR_CHG_EN BIT(7) #define CHGR_ON_BAT_FORCE_BIT BIT(0) #define USB_VALID_DEB_20MS 0x03 #define BUCK_VBAT_REG_NODE_SEL_BIT BIT(0) #define VREF_BATT_THERM_FORCE_ON 0xC0 #define BAT_IF_BPD_CTRL_SEL 0x03 #define VREF_BAT_THM_ENABLED_FSM 0x80 #define REV_BST_DETECTED BIT(0) #define BAT_THM_EN BIT(1) #define BAT_ID_EN BIT(0) #define BOOST_PWR_EN BIT(7) /* Interrupt definitions */ /* smbb_chg_interrupts */ #define CHG_DONE_IRQ BIT(7) #define CHG_FAILED_IRQ BIT(6) #define FAST_CHG_ON_IRQ BIT(5) #define TRKL_CHG_ON_IRQ BIT(4) #define STATE_CHANGE_ON_IR BIT(3) #define CHGWDDOG_IRQ BIT(2) #define VBAT_DET_HI_IRQ BIT(1) #define VBAT_DET_LOW_IRQ BIT(0) /* smbb_buck_interrupts */ #define VDD_LOOP_IRQ BIT(6) #define IBAT_LOOP_IRQ BIT(5) #define ICHG_LOOP_IRQ BIT(4) #define VCHG_LOOP_IRQ BIT(3) #define OVERTEMP_IRQ BIT(2) #define VREF_OV_IRQ BIT(1) #define VBAT_OV_IRQ BIT(0) /* smbb_bat_if_interrupts */ #define PSI_IRQ BIT(4) #define VCP_ON_IRQ BIT(3) #define BAT_FET_ON_IRQ BIT(2) #define BAT_TEMP_OK_IRQ BIT(1) #define BATT_PRES_IRQ BIT(0) /* smbb_usb_interrupts */ #define CHG_GONE_IRQ BIT(2) #define USBIN_VALID_IRQ BIT(1) #define COARSE_DET_USB_IRQ BIT(0) /* smbb_dc_interrupts */ #define DCIN_VALID_IRQ BIT(1) #define COARSE_DET_DC_IRQ BIT(0) /* smbb_boost_interrupts */ #define LIMIT_ERROR_IRQ BIT(1) #define BOOST_PWR_OK_IRQ BIT(0) /* smbb_misc_interrupts */ #define TFTWDOG_IRQ BIT(0) /* SMBB types */ #define SMBB BIT(1) #define SMBBP BIT(2) #define SMBCL BIT(3) /* Workaround flags */ #define CHG_FLAGS_VCP_WA BIT(0) #define BOOST_FLASH_WA BIT(1) struct qpnp_chg_irq { unsigned int irq; unsigned long disabled; }; struct qpnp_chg_regulator { struct regulator_desc rdesc; struct regulator_dev *rdev; }; /** * struct qpnp_chg_chip - device information * @dev: device pointer to access the parent * @spmi: spmi pointer to access spmi information * @chgr_base: charger peripheral base address * @buck_base: buck peripheral base address * @bat_if_base: battery interface peripheral base address * @usb_chgpth_base: USB charge path peripheral base address * @dc_chgpth_base: DC charge path peripheral base address * @boost_base: boost peripheral base address * @misc_base: misc peripheral base address * @freq_base: freq peripheral base address * @bat_is_cool: indicates that battery is cool * @bat_is_warm: indicates that battery is warm * @chg_done: indicates that charging is completed * @usb_present: present status of usb * @dc_present: present status of dc * @batt_present: present status of battery * @use_default_batt_values: flag to report default battery properties * @max_voltage_mv: the max volts the batt should be charged up to * @min_voltage_mv: min battery voltage before turning the FET on * @max_bat_chg_current: maximum battery charge current in mA * @warm_bat_chg_ma: warm battery maximum charge current in mA * @cool_bat_chg_ma: cool battery maximum charge current in mA * @warm_bat_mv: warm temperature battery target voltage * @cool_bat_mv: cool temperature battery target voltage * @resume_delta_mv: voltage delta at which battery resumes charging * @term_current: the charging based term current * @safe_current: battery safety current setting * @maxinput_usb_ma: Maximum Input current USB * @maxinput_dc_ma: Maximum Input current DC * @warm_bat_decidegc Warm battery temperature in degree Celsius * @cool_bat_decidegc Cool battery temperature in degree Celsius * @revision: PMIC revision * @type: SMBB type * @tchg_mins maximum allowed software initiated charge time * @thermal_levels amount of thermal mitigation levels * @thermal_mitigation thermal mitigation level values * @therm_lvl_sel thermal mitigation level selection * @dc_psy power supply to export information to userspace * @usb_psy power supply to export information to userspace * @bms_psy power supply to export information to userspace * @batt_psy: power supply to export information to userspace * @flags: flags to activate specific workarounds * throughout the driver * */ struct qpnp_chg_chip { struct device *dev; struct spmi_device *spmi; u16 chgr_base; u16 buck_base; u16 bat_if_base; u16 usb_chgpth_base; u16 dc_chgpth_base; u16 boost_base; u16 misc_base; u16 freq_base; struct qpnp_chg_irq usbin_valid; struct qpnp_chg_irq dcin_valid; struct qpnp_chg_irq chg_gone; struct qpnp_chg_irq chg_fastchg; struct qpnp_chg_irq chg_trklchg; struct qpnp_chg_irq chg_failed; struct qpnp_chg_irq chg_vbatdet_lo; struct qpnp_chg_irq batt_pres; bool bat_is_cool; bool bat_is_warm; bool chg_done; bool usb_present; bool dc_present; bool batt_present; bool charging_disabled; bool use_default_batt_values; bool duty_cycle_100p; unsigned int bpd_detection; unsigned int max_bat_chg_current; unsigned int warm_bat_chg_ma; unsigned int cool_bat_chg_ma; unsigned int safe_voltage_mv; unsigned int max_voltage_mv; unsigned int min_voltage_mv; int set_vddmax_mv; int delta_vddmax_mv; unsigned int warm_bat_mv; unsigned int cool_bat_mv; unsigned int resume_delta_mv; int term_current; unsigned int maxinput_usb_ma; unsigned int maxinput_dc_ma; unsigned int warm_bat_decidegc; unsigned int cool_bat_decidegc; unsigned int safe_current; unsigned int revision; unsigned int type; unsigned int tchg_mins; unsigned int thermal_levels; unsigned int therm_lvl_sel; unsigned int *thermal_mitigation; struct power_supply dc_psy; struct power_supply *usb_psy; struct power_supply *bms_psy; struct power_supply batt_psy; uint32_t flags; struct qpnp_adc_tm_btm_param adc_param; struct work_struct adc_measure_work; struct delayed_work arb_stop_work; struct delayed_work eoc_work; struct wake_lock eoc_wake_lock; struct qpnp_chg_regulator otg_vreg; struct qpnp_chg_regulator boost_vreg; }; static struct of_device_id qpnp_charger_match_table[] = { { .compatible = QPNP_CHARGER_DEV_NAME, }, {} }; enum bpd_type { BPD_TYPE_BAT_ID, BPD_TYPE_BAT_THM, BPD_TYPE_BAT_THM_BAT_ID, }; static const char * const bpd_label[] = { [BPD_TYPE_BAT_ID] = "bpd_id", [BPD_TYPE_BAT_THM] = "bpd_thm", [BPD_TYPE_BAT_THM_BAT_ID] = "bpd_thm_id", }; static inline int get_bpd(const char *name) { int i = 0; for (i = 0; i < ARRAY_SIZE(bpd_label); i++) { if (strcmp(bpd_label[i], name) == 0) return i; } return -EINVAL; } static int qpnp_chg_read(struct qpnp_chg_chip *chip, u8 *val, u16 base, int count) { int rc = 0; struct spmi_device *spmi = chip->spmi; if (base == 0) { pr_err("base cannot be zero base=0x%02x sid=0x%02x rc=%d\n", base, spmi->sid, rc); return -EINVAL; } rc = spmi_ext_register_readl(spmi->ctrl, spmi->sid, base, val, count); if (rc) { pr_err("SPMI read failed base=0x%02x sid=0x%02x rc=%d\n", base, spmi->sid, rc); return rc; } return 0; } static int qpnp_chg_write(struct qpnp_chg_chip *chip, u8 *val, u16 base, int count) { int rc = 0; struct spmi_device *spmi = chip->spmi; if (base == 0) { pr_err("base cannot be zero base=0x%02x sid=0x%02x rc=%d\n", base, spmi->sid, rc); return -EINVAL; } rc = spmi_ext_register_writel(spmi->ctrl, spmi->sid, base, val, count); if (rc) { pr_err("write failed base=0x%02x sid=0x%02x rc=%d\n", base, spmi->sid, rc); return rc; } return 0; } static int qpnp_chg_masked_write(struct qpnp_chg_chip *chip, u16 base, u8 mask, u8 val, int count) { int rc; u8 reg; rc = qpnp_chg_read(chip, ®, base, count); if (rc) { pr_err("spmi read failed: addr=%03X, rc=%d\n", base, rc); return rc; } pr_debug("addr = 0x%x read 0x%x\n", base, reg); reg &= ~mask; reg |= val & mask; pr_debug("Writing 0x%x\n", reg); rc = qpnp_chg_write(chip, ®, base, count); if (rc) { pr_err("spmi write failed: addr=%03X, rc=%d\n", base, rc); return rc; } return 0; } static void qpnp_chg_enable_irq(struct qpnp_chg_irq *irq) { if (__test_and_clear_bit(0, &irq->disabled)) { pr_debug("number = %d\n", irq->irq); enable_irq(irq->irq); } } static void qpnp_chg_disable_irq(struct qpnp_chg_irq *irq) { if (!__test_and_set_bit(0, &irq->disabled)) { pr_debug("number = %d\n", irq->irq); disable_irq_nosync(irq->irq); } } #define USB_OTG_EN_BIT BIT(0) static int qpnp_chg_is_otg_en_set(struct qpnp_chg_chip *chip) { u8 usb_otg_en; int rc; rc = qpnp_chg_read(chip, &usb_otg_en, chip->usb_chgpth_base + CHGR_USB_USB_OTG_CTL, 1); if (rc) { pr_err("spmi read failed: addr=%03X, rc=%d\n", chip->usb_chgpth_base + CHGR_STATUS, rc); return rc; } pr_debug("usb otg en 0x%x\n", usb_otg_en); return (usb_otg_en & USB_OTG_EN_BIT) ? 1 : 0; } static int qpnp_chg_is_boost_en_set(struct qpnp_chg_chip *chip) { u8 boost_en_ctl; int rc; rc = qpnp_chg_read(chip, &boost_en_ctl, chip->boost_base + BOOST_ENABLE_CONTROL, 1); if (rc) { pr_err("spmi read failed: addr=%03X, rc=%d\n", chip->boost_base + BOOST_ENABLE_CONTROL, rc); return rc; } pr_debug("boost en 0x%x\n", boost_en_ctl); return (boost_en_ctl & BOOST_PWR_EN) ? 1 : 0; } static int qpnp_chg_is_batt_present(struct qpnp_chg_chip *chip) { u8 batt_pres_rt_sts; int rc; rc = qpnp_chg_read(chip, &batt_pres_rt_sts, INT_RT_STS(chip->bat_if_base), 1); if (rc) { pr_err("spmi read failed: addr=%03X, rc=%d\n", INT_RT_STS(chip->bat_if_base), rc); return rc; } return (batt_pres_rt_sts & BATT_PRES_IRQ) ? 1 : 0; } #define USB_VALID_BIT BIT(7) static int qpnp_chg_is_usb_chg_plugged_in(struct qpnp_chg_chip *chip) { u8 usbin_valid_rt_sts; int rc; rc = qpnp_chg_read(chip, &usbin_valid_rt_sts, chip->usb_chgpth_base + CHGR_STATUS , 1); if (rc) { pr_err("spmi read failed: addr=%03X, rc=%d\n", chip->usb_chgpth_base + CHGR_STATUS, rc); return rc; } pr_debug("chgr usb sts 0x%x\n", usbin_valid_rt_sts); return (usbin_valid_rt_sts & USB_VALID_BIT) ? 1 : 0; } static int qpnp_chg_is_dc_chg_plugged_in(struct qpnp_chg_chip *chip) { u8 dcin_valid_rt_sts; int rc; if (!chip->dc_chgpth_base) return 0; rc = qpnp_chg_read(chip, &dcin_valid_rt_sts, INT_RT_STS(chip->dc_chgpth_base), 1); if (rc) { pr_err("spmi read failed: addr=%03X, rc=%d\n", INT_RT_STS(chip->dc_chgpth_base), rc); return rc; } return (dcin_valid_rt_sts & DCIN_VALID_IRQ) ? 1 : 0; } #define QPNP_CHG_I_MAX_MIN_100 100 #define QPNP_CHG_I_MAX_MIN_150 150 #define QPNP_CHG_I_MAX_MIN_MA 200 #define QPNP_CHG_I_MAX_MAX_MA 2500 #define QPNP_CHG_I_MAXSTEP_MA 100 static int qpnp_chg_idcmax_set(struct qpnp_chg_chip *chip, int mA) { int rc = 0; u8 dc = 0; if (mA < QPNP_CHG_I_MAX_MIN_100 || mA > QPNP_CHG_I_MAX_MAX_MA) { pr_err("bad mA=%d asked to set\n", mA); return -EINVAL; } if (mA == QPNP_CHG_I_MAX_MIN_100) { dc = 0x00; pr_debug("current=%d setting %02x\n", mA, dc); return qpnp_chg_write(chip, &dc, chip->dc_chgpth_base + CHGR_I_MAX_REG, 1); } else if (mA == QPNP_CHG_I_MAX_MIN_150) { dc = 0x01; pr_debug("current=%d setting %02x\n", mA, dc); return qpnp_chg_write(chip, &dc, chip->dc_chgpth_base + CHGR_I_MAX_REG, 1); } dc = mA / QPNP_CHG_I_MAXSTEP_MA; pr_debug("current=%d setting 0x%x\n", mA, dc); rc = qpnp_chg_write(chip, &dc, chip->dc_chgpth_base + CHGR_I_MAX_REG, 1); return rc; } static int qpnp_chg_iusbmax_set(struct qpnp_chg_chip *chip, int mA) { int rc = 0; u8 usb_reg = 0, temp = 8; if (mA < QPNP_CHG_I_MAX_MIN_100 || mA > QPNP_CHG_I_MAX_MAX_MA) { pr_err("bad mA=%d asked to set\n", mA); return -EINVAL; } if (mA == QPNP_CHG_I_MAX_MIN_100) { usb_reg = 0x00; pr_debug("current=%d setting %02x\n", mA, usb_reg); return qpnp_chg_write(chip, &usb_reg, chip->usb_chgpth_base + CHGR_I_MAX_REG, 1); } else if (mA == QPNP_CHG_I_MAX_MIN_150) { usb_reg = 0x01; pr_debug("current=%d setting %02x\n", mA, usb_reg); return qpnp_chg_write(chip, &usb_reg, chip->usb_chgpth_base + CHGR_I_MAX_REG, 1); } /* Impose input current limit */ if (chip->maxinput_usb_ma) mA = (chip->maxinput_usb_ma) <= mA ? chip->maxinput_usb_ma : mA; usb_reg = mA / QPNP_CHG_I_MAXSTEP_MA; if (chip->flags & CHG_FLAGS_VCP_WA) { temp = 0xA5; rc = qpnp_chg_write(chip, &temp, chip->buck_base + SEC_ACCESS, 1); rc = qpnp_chg_masked_write(chip, chip->buck_base + CHGR_BUCK_COMPARATOR_OVRIDE_3, 0x0C, 0x0C, 1); } pr_debug("current=%d setting 0x%x\n", mA, usb_reg); rc = qpnp_chg_write(chip, &usb_reg, chip->usb_chgpth_base + CHGR_I_MAX_REG, 1); if (chip->flags & CHG_FLAGS_VCP_WA) { temp = 0xA5; udelay(200); rc = qpnp_chg_write(chip, &temp, chip->buck_base + SEC_ACCESS, 1); rc = qpnp_chg_masked_write(chip, chip->buck_base + CHGR_BUCK_COMPARATOR_OVRIDE_3, 0x0C, 0x00, 1); } return rc; } #define USB_SUSPEND_BIT BIT(0) static int qpnp_chg_usb_suspend_enable(struct qpnp_chg_chip *chip, int enable) { return qpnp_chg_masked_write(chip, chip->usb_chgpth_base + CHGR_USB_USB_SUSP, USB_SUSPEND_BIT, enable ? USB_SUSPEND_BIT : 0, 1); } static int qpnp_chg_charge_en(struct qpnp_chg_chip *chip, int enable) { return qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_CHG_CTRL, CHGR_CHG_EN, enable ? CHGR_CHG_EN : 0, 1); } static int qpnp_chg_force_run_on_batt(struct qpnp_chg_chip *chip, int disable) { /* Don't run on battery for batteryless hardware */ if (chip->use_default_batt_values) return 0; /* Don't force on battery if battery is not present */ if (!qpnp_chg_is_batt_present(chip)) return 0; /* This bit forces the charger to run off of the battery rather * than a connected charger */ return qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_CHG_CTRL, CHGR_ON_BAT_FORCE_BIT, disable ? CHGR_ON_BAT_FORCE_BIT : 0, 1); } #define BUCK_DUTY_MASK_100P 0x30 static int qpnp_buck_set_100_duty_cycle_enable(struct qpnp_chg_chip *chip, int enable) { int rc; pr_debug("enable: %d\n", enable); rc = qpnp_chg_masked_write(chip, chip->buck_base + SEC_ACCESS, 0xA5, 0xA5, 1); if (rc) { pr_debug("failed to write sec access rc=%d\n", rc); return rc; } rc = qpnp_chg_masked_write(chip, chip->buck_base + BUCK_TEST_SMBC_MODES, BUCK_DUTY_MASK_100P, enable ? 0x00 : 0x10, 1); if (rc) { pr_debug("failed enable 100p duty cycle rc=%d\n", rc); return rc; } return rc; } #define COMPATATOR_OVERRIDE_0 0x80 static int qpnp_chg_toggle_chg_done_logic(struct qpnp_chg_chip *chip, int enable) { int rc; pr_debug("toggle: %d\n", enable); rc = qpnp_chg_masked_write(chip, chip->buck_base + SEC_ACCESS, 0xA5, 0xA5, 1); if (rc) { pr_debug("failed to write sec access rc=%d\n", rc); return rc; } rc = qpnp_chg_masked_write(chip, chip->buck_base + CHGR_BUCK_COMPARATOR_OVRIDE_1, 0xC0, enable ? 0x00 : COMPATATOR_OVERRIDE_0, 1); if (rc) { pr_debug("failed to toggle chg done override rc=%d\n", rc); return rc; } return rc; } #define QPNP_CHG_VBATDET_MIN_MV 3240 #define QPNP_CHG_VBATDET_MAX_MV 5780 #define QPNP_CHG_VBATDET_STEP_MV 20 static int qpnp_chg_vbatdet_set(struct qpnp_chg_chip *chip, int vbatdet_mv) { u8 temp; if (vbatdet_mv < QPNP_CHG_VBATDET_MIN_MV || vbatdet_mv > QPNP_CHG_VBATDET_MAX_MV) { pr_err("bad mV=%d asked to set\n", vbatdet_mv); return -EINVAL; } temp = (vbatdet_mv - QPNP_CHG_VBATDET_MIN_MV) / QPNP_CHG_VBATDET_STEP_MV; pr_debug("voltage=%d setting %02x\n", vbatdet_mv, temp); return qpnp_chg_write(chip, &temp, chip->chgr_base + CHGR_VBAT_DET, 1); } static void qpnp_arb_stop_work(struct work_struct *work) { struct delayed_work *dwork = to_delayed_work(work); struct qpnp_chg_chip *chip = container_of(dwork, struct qpnp_chg_chip, arb_stop_work); if (!chip->chg_done) qpnp_chg_charge_en(chip, !chip->charging_disabled); qpnp_chg_force_run_on_batt(chip, chip->charging_disabled); } static void qpnp_bat_if_adc_measure_work(struct work_struct *work) { struct qpnp_chg_chip *chip = container_of(work, struct qpnp_chg_chip, adc_measure_work); if (qpnp_adc_tm_channel_measure(&chip->adc_param)) pr_err("request ADC error\n"); } #define EOC_CHECK_PERIOD_MS 10000 static irqreturn_t qpnp_chg_vbatdet_lo_irq_handler(int irq, void *_chip) { struct qpnp_chg_chip *chip = _chip; u8 chg_sts = 0; int rc; pr_debug("vbatdet-lo triggered\n"); rc = qpnp_chg_read(chip, &chg_sts, INT_RT_STS(chip->chgr_base), 1); if (rc) pr_err("failed to read chg_sts rc=%d\n", rc); pr_debug("chg_done chg_sts: 0x%x triggered\n", chg_sts); if (!chip->charging_disabled && (chg_sts & FAST_CHG_ON_IRQ)) { schedule_delayed_work(&chip->eoc_work, msecs_to_jiffies(EOC_CHECK_PERIOD_MS)); wake_lock(&chip->eoc_wake_lock); qpnp_chg_disable_irq(&chip->chg_vbatdet_lo); } else { qpnp_chg_charge_en(chip, !chip->charging_disabled); } power_supply_changed(chip->usb_psy); if (chip->dc_chgpth_base) power_supply_changed(&chip->dc_psy); if (chip->bat_if_base) power_supply_changed(&chip->batt_psy); return IRQ_HANDLED; } #define ARB_STOP_WORK_MS 1000 static irqreturn_t qpnp_chg_usb_chg_gone_irq_handler(int irq, void *_chip) { struct qpnp_chg_chip *chip = _chip; pr_debug("chg_gone triggered\n"); if (qpnp_chg_is_usb_chg_plugged_in(chip)) { qpnp_chg_charge_en(chip, 0); qpnp_chg_force_run_on_batt(chip, 1); schedule_delayed_work(&chip->arb_stop_work, msecs_to_jiffies(ARB_STOP_WORK_MS)); } return IRQ_HANDLED; } #define ENUM_T_STOP_BIT BIT(0) static irqreturn_t qpnp_chg_usb_usbin_valid_irq_handler(int irq, void *_chip) { struct qpnp_chg_chip *chip = _chip; int usb_present, host_mode; usb_present = qpnp_chg_is_usb_chg_plugged_in(chip); host_mode = qpnp_chg_is_otg_en_set(chip); pr_debug("usbin-valid triggered: %d host_mode: %d\n", usb_present, host_mode); /* In host mode notifications cmoe from USB supply */ if (host_mode) return IRQ_HANDLED; if (chip->usb_present ^ usb_present) { chip->usb_present = usb_present; if (!usb_present) { qpnp_chg_usb_suspend_enable(chip, 1); chip->chg_done = false; } else { schedule_delayed_work(&chip->eoc_work, msecs_to_jiffies(EOC_CHECK_PERIOD_MS)); } power_supply_set_present(chip->usb_psy, chip->usb_present); } return IRQ_HANDLED; } static irqreturn_t qpnp_chg_bat_if_batt_pres_irq_handler(int irq, void *_chip) { struct qpnp_chg_chip *chip = _chip; int batt_present; batt_present = qpnp_chg_is_batt_present(chip); pr_debug("batt-pres triggered: %d\n", batt_present); if (chip->batt_present ^ batt_present) { chip->batt_present = batt_present; power_supply_changed(&chip->batt_psy); power_supply_changed(chip->usb_psy); if (chip->cool_bat_decidegc && chip->warm_bat_decidegc && batt_present) { schedule_work(&chip->adc_measure_work); } } return IRQ_HANDLED; } static irqreturn_t qpnp_chg_dc_dcin_valid_irq_handler(int irq, void *_chip) { struct qpnp_chg_chip *chip = _chip; int dc_present; dc_present = qpnp_chg_is_dc_chg_plugged_in(chip); pr_debug("dcin-valid triggered: %d\n", dc_present); if (chip->dc_present ^ dc_present) { chip->dc_present = dc_present; if (!dc_present) chip->chg_done = false; else schedule_delayed_work(&chip->eoc_work, msecs_to_jiffies(EOC_CHECK_PERIOD_MS)); power_supply_changed(&chip->dc_psy); power_supply_changed(&chip->batt_psy); } return IRQ_HANDLED; } #define CHGR_CHG_FAILED_BIT BIT(7) static irqreturn_t qpnp_chg_chgr_chg_failed_irq_handler(int irq, void *_chip) { struct qpnp_chg_chip *chip = _chip; int rc; pr_debug("chg_failed triggered\n"); rc = qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_CHG_FAILED, CHGR_CHG_FAILED_BIT, CHGR_CHG_FAILED_BIT, 1); if (rc) pr_err("Failed to write chg_fail clear bit!\n"); if (chip->bat_if_base) power_supply_changed(&chip->batt_psy); power_supply_changed(chip->usb_psy); if (chip->dc_chgpth_base) power_supply_changed(&chip->dc_psy); return IRQ_HANDLED; } static irqreturn_t qpnp_chg_chgr_chg_trklchg_irq_handler(int irq, void *_chip) { struct qpnp_chg_chip *chip = _chip; pr_debug("TRKL IRQ triggered\n"); chip->chg_done = false; if (chip->bat_if_base) power_supply_changed(&chip->batt_psy); return IRQ_HANDLED; } static irqreturn_t qpnp_chg_chgr_chg_fastchg_irq_handler(int irq, void *_chip) { struct qpnp_chg_chip *chip = _chip; pr_debug("FAST_CHG IRQ triggered\n"); chip->chg_done = false; if (chip->bat_if_base) power_supply_changed(&chip->batt_psy); power_supply_changed(chip->usb_psy); if (chip->dc_chgpth_base) power_supply_changed(&chip->dc_psy); qpnp_chg_enable_irq(&chip->chg_vbatdet_lo); return IRQ_HANDLED; } static int qpnp_batt_property_is_writeable(struct power_supply *psy, enum power_supply_property psp) { switch (psp) { case POWER_SUPPLY_PROP_CHARGING_ENABLED: case POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL: return 1; default: break; } return 0; } static int qpnp_chg_buck_control(struct qpnp_chg_chip *chip, int enable) { int rc; if (chip->charging_disabled && enable) { pr_debug("Charging disabled\n"); return 0; } rc = qpnp_chg_charge_en(chip, enable); if (rc) { pr_err("Failed to control charging %d\n", rc); return rc; } rc = qpnp_chg_force_run_on_batt(chip, !enable); if (rc) pr_err("Failed to control charging %d\n", rc); return rc; } static int switch_usb_to_charge_mode(struct qpnp_chg_chip *chip) { int rc; pr_debug("switch to charge mode\n"); if (!qpnp_chg_is_otg_en_set(chip)) return 0; /* enable usb ovp fet */ rc = qpnp_chg_masked_write(chip, chip->usb_chgpth_base + CHGR_USB_USB_OTG_CTL, USB_OTG_EN_BIT, 0, 1); if (rc) { pr_err("Failed to turn on usb ovp rc = %d\n", rc); return rc; } rc = qpnp_chg_force_run_on_batt(chip, chip->charging_disabled); if (rc) { pr_err("Failed re-enable charging rc = %d\n", rc); return rc; } return 0; } static int switch_usb_to_host_mode(struct qpnp_chg_chip *chip) { int rc; pr_debug("switch to host mode\n"); if (qpnp_chg_is_otg_en_set(chip)) return 0; rc = qpnp_chg_force_run_on_batt(chip, 1); if (rc) { pr_err("Failed to disable charging rc = %d\n", rc); return rc; } /* force usb ovp fet off */ rc = qpnp_chg_masked_write(chip, chip->usb_chgpth_base + CHGR_USB_USB_OTG_CTL, USB_OTG_EN_BIT, USB_OTG_EN_BIT, 1); if (rc) { pr_err("Failed to turn off usb ovp rc = %d\n", rc); return rc; } return 0; } static enum power_supply_property pm_power_props_mains[] = { POWER_SUPPLY_PROP_PRESENT, POWER_SUPPLY_PROP_ONLINE, }; static enum power_supply_property msm_batt_power_props[] = { POWER_SUPPLY_PROP_CHARGING_ENABLED, POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_PROP_CHARGE_TYPE, POWER_SUPPLY_PROP_HEALTH, POWER_SUPPLY_PROP_PRESENT, POWER_SUPPLY_PROP_TECHNOLOGY, POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, POWER_SUPPLY_PROP_VOLTAGE_NOW, POWER_SUPPLY_PROP_CAPACITY, POWER_SUPPLY_PROP_CURRENT_NOW, POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, POWER_SUPPLY_PROP_TEMP, POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL, }; static char *pm_power_supplied_to[] = { "battery", }; static char *pm_batt_supplied_to[] = { "bms", }; #define USB_WALL_THRESHOLD_MA 500 static int qpnp_power_get_property_mains(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { struct qpnp_chg_chip *chip = container_of(psy, struct qpnp_chg_chip, dc_psy); switch (psp) { case POWER_SUPPLY_PROP_PRESENT: case POWER_SUPPLY_PROP_ONLINE: val->intval = 0; if (chip->charging_disabled) return 0; val->intval = qpnp_chg_is_dc_chg_plugged_in(chip); break; default: return -EINVAL; } return 0; } static int get_prop_battery_voltage_now(struct qpnp_chg_chip *chip) { int rc = 0; struct qpnp_vadc_result results; if (chip->revision == 0 && chip->type == SMBB) { pr_err("vbat reading not supported for 1.0 rc=%d\n", rc); return 0; } else { rc = qpnp_vadc_read(VBAT_SNS, &results); if (rc) { pr_err("Unable to read vbat rc=%d\n", rc); return 0; } return results.physical; } } #define BATT_PRES_BIT BIT(7) static int get_prop_batt_present(struct qpnp_chg_chip *chip) { u8 batt_present; int rc; rc = qpnp_chg_read(chip, &batt_present, chip->bat_if_base + CHGR_BAT_IF_PRES_STATUS, 1); if (rc) { pr_err("Couldn't read battery status read failed rc=%d\n", rc); return 0; }; return (batt_present & BATT_PRES_BIT) ? 1 : 0; } #define BATT_TEMP_HOT BIT(6) #define BATT_TEMP_OK BIT(7) static int get_prop_batt_health(struct qpnp_chg_chip *chip) { u8 batt_health; int rc; rc = qpnp_chg_read(chip, &batt_health, chip->bat_if_base + CHGR_STATUS, 1); if (rc) { pr_err("Couldn't read battery health read failed rc=%d\n", rc); return POWER_SUPPLY_HEALTH_UNKNOWN; }; if (BATT_TEMP_OK & batt_health) return POWER_SUPPLY_HEALTH_GOOD; if (BATT_TEMP_HOT & batt_health) return POWER_SUPPLY_HEALTH_OVERHEAT; else return POWER_SUPPLY_HEALTH_COLD; } static int get_prop_charge_type(struct qpnp_chg_chip *chip) { int rc; u8 chgr_sts; if (!get_prop_batt_present(chip)) return POWER_SUPPLY_CHARGE_TYPE_NONE; rc = qpnp_chg_read(chip, &chgr_sts, INT_RT_STS(chip->chgr_base), 1); if (rc) { pr_err("failed to read interrupt sts %d\n", rc); return POWER_SUPPLY_CHARGE_TYPE_NONE; } if (chgr_sts & TRKL_CHG_ON_IRQ) return POWER_SUPPLY_CHARGE_TYPE_TRICKLE; if (chgr_sts & FAST_CHG_ON_IRQ) return POWER_SUPPLY_CHARGE_TYPE_FAST; return POWER_SUPPLY_CHARGE_TYPE_NONE; } static int get_prop_batt_status(struct qpnp_chg_chip *chip) { int rc; u8 chgr_sts; if ((qpnp_chg_is_usb_chg_plugged_in(chip) || qpnp_chg_is_dc_chg_plugged_in(chip)) && chip->chg_done) { return POWER_SUPPLY_STATUS_FULL; } rc = qpnp_chg_read(chip, &chgr_sts, INT_RT_STS(chip->chgr_base), 1); if (rc) { pr_err("failed to read interrupt sts %d\n", rc); return POWER_SUPPLY_CHARGE_TYPE_NONE; } if (chgr_sts & TRKL_CHG_ON_IRQ) return POWER_SUPPLY_STATUS_CHARGING; if (chgr_sts & FAST_CHG_ON_IRQ) return POWER_SUPPLY_STATUS_CHARGING; return POWER_SUPPLY_STATUS_DISCHARGING; } static int get_prop_current_now(struct qpnp_chg_chip *chip) { union power_supply_propval ret = {0,}; if (chip->bms_psy) { chip->bms_psy->get_property(chip->bms_psy, POWER_SUPPLY_PROP_CURRENT_NOW, &ret); return ret.intval; } else { pr_debug("No BMS supply registered return 0\n"); } return 0; } static int get_prop_full_design(struct qpnp_chg_chip *chip) { union power_supply_propval ret = {0,}; if (chip->bms_psy) { chip->bms_psy->get_property(chip->bms_psy, POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, &ret); return ret.intval; } else { pr_debug("No BMS supply registered return 0\n"); } return 0; } #define DEFAULT_CAPACITY 50 static int get_prop_capacity(struct qpnp_chg_chip *chip) { union power_supply_propval ret = {0,}; if (chip->use_default_batt_values || !get_prop_batt_present(chip)) return DEFAULT_CAPACITY; if (chip->bms_psy) { chip->bms_psy->get_property(chip->bms_psy, POWER_SUPPLY_PROP_CAPACITY, &ret); if (ret.intval == 0) { if (!qpnp_chg_is_usb_chg_plugged_in(chip) && !qpnp_chg_is_usb_chg_plugged_in(chip)) pr_warn_ratelimited("Battery 0, CHG absent\n"); } return ret.intval; } else { pr_debug("No BMS supply registered return 50\n"); } /* return default capacity to avoid userspace * from shutting down unecessarily */ return DEFAULT_CAPACITY; } #define DEFAULT_TEMP 250 #define MAX_TOLERABLE_BATT_TEMP_DDC 680 static int get_prop_batt_temp(struct qpnp_chg_chip *chip) { int rc = 0; struct qpnp_vadc_result results; if (chip->use_default_batt_values || !get_prop_batt_present(chip)) return DEFAULT_TEMP; if (chip->revision > 0) { rc = qpnp_vadc_read(LR_MUX1_BATT_THERM, &results); if (rc) { pr_debug("Unable to read batt temperature rc=%d\n", rc); return 0; } pr_debug("get_bat_temp %d %lld\n", results.adc_code, results.physical); return (int)results.physical; } else { pr_debug("batt temp not supported for PMIC 1.0 rc=%d\n", rc); } /* return default temperature to avoid userspace * from shutting down unecessarily */ return DEFAULT_TEMP; } static void qpnp_batt_external_power_changed(struct power_supply *psy) { struct qpnp_chg_chip *chip = container_of(psy, struct qpnp_chg_chip, batt_psy); union power_supply_propval ret = {0,}; if (!chip->bms_psy) chip->bms_psy = power_supply_get_by_name("bms"); chip->usb_psy->get_property(chip->usb_psy, POWER_SUPPLY_PROP_ONLINE, &ret); /* Only honour requests while USB is present */ if (qpnp_chg_is_usb_chg_plugged_in(chip)) { chip->usb_psy->get_property(chip->usb_psy, POWER_SUPPLY_PROP_CURRENT_MAX, &ret); if (ret.intval <= 2 && !chip->use_default_batt_values && get_prop_batt_present(chip)) { qpnp_chg_usb_suspend_enable(chip, 1); qpnp_chg_iusbmax_set(chip, QPNP_CHG_I_MAX_MIN_100); } else { qpnp_chg_usb_suspend_enable(chip, 0); qpnp_chg_iusbmax_set(chip, ret.intval / 1000); } } pr_debug("end of power supply changed\n"); power_supply_changed(&chip->batt_psy); } static int qpnp_batt_power_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { struct qpnp_chg_chip *chip = container_of(psy, struct qpnp_chg_chip, batt_psy); switch (psp) { case POWER_SUPPLY_PROP_STATUS: val->intval = get_prop_batt_status(chip); break; case POWER_SUPPLY_PROP_CHARGE_TYPE: val->intval = get_prop_charge_type(chip); break; case POWER_SUPPLY_PROP_HEALTH: val->intval = get_prop_batt_health(chip); break; case POWER_SUPPLY_PROP_PRESENT: val->intval = get_prop_batt_present(chip); break; case POWER_SUPPLY_PROP_TECHNOLOGY: val->intval = POWER_SUPPLY_TECHNOLOGY_LION; break; case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: val->intval = chip->max_voltage_mv * 1000; break; case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: val->intval = chip->min_voltage_mv * 1000; break; case POWER_SUPPLY_PROP_VOLTAGE_NOW: val->intval = get_prop_battery_voltage_now(chip); break; case POWER_SUPPLY_PROP_TEMP: val->intval = get_prop_batt_temp(chip); break; case POWER_SUPPLY_PROP_CAPACITY: val->intval = get_prop_capacity(chip); break; case POWER_SUPPLY_PROP_CURRENT_NOW: val->intval = get_prop_current_now(chip); break; case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: val->intval = get_prop_full_design(chip); break; case POWER_SUPPLY_PROP_CHARGING_ENABLED: val->intval = !(chip->charging_disabled); break; case POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL: val->intval = chip->therm_lvl_sel; break; default: return -EINVAL; } return 0; } #define QPNP_CHG_VINMIN_MIN_MV 3400 #define QPNP_CHG_VINMIN_HIGH_MIN_MV 5600 #define QPNP_CHG_VINMIN_HIGH_MIN_VAL 0x2B #define QPNP_CHG_VINMIN_MAX_MV 9600 #define QPNP_CHG_VINMIN_STEP_MV 50 #define QPNP_CHG_VINMIN_STEP_HIGH_MV 200 #define QPNP_CHG_VINMIN_MASK 0x1F static int qpnp_chg_vinmin_set(struct qpnp_chg_chip *chip, int voltage) { u8 temp; if (voltage < QPNP_CHG_VINMIN_MIN_MV || voltage > QPNP_CHG_VINMIN_MAX_MV) { pr_err("bad mV=%d asked to set\n", voltage); return -EINVAL; } if (voltage >= QPNP_CHG_VINMIN_HIGH_MIN_MV) { temp = QPNP_CHG_VINMIN_HIGH_MIN_VAL; temp += (voltage - QPNP_CHG_VINMIN_MIN_MV) / QPNP_CHG_VINMIN_STEP_HIGH_MV; } else { temp = (voltage - QPNP_CHG_VINMIN_MIN_MV) / QPNP_CHG_VINMIN_STEP_MV; } pr_debug("voltage=%d setting %02x\n", voltage, temp); return qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_VIN_MIN, QPNP_CHG_VINMIN_MASK, temp, 1); } #define QPNP_CHG_IBATSAFE_MIN_MA 100 #define QPNP_CHG_IBATSAFE_MAX_MA 3250 #define QPNP_CHG_I_STEP_MA 50 #define QPNP_CHG_I_MIN_MA 100 #define QPNP_CHG_I_MASK 0x3F static int qpnp_chg_ibatsafe_set(struct qpnp_chg_chip *chip, int safe_current) { u8 temp; if (safe_current < QPNP_CHG_IBATSAFE_MIN_MA || safe_current > QPNP_CHG_IBATSAFE_MAX_MA) { pr_err("bad mA=%d asked to set\n", safe_current); return -EINVAL; } temp = (safe_current - QPNP_CHG_IBATSAFE_MIN_MA) / QPNP_CHG_I_STEP_MA; return qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_IBAT_SAFE, QPNP_CHG_I_MASK, temp, 1); } #define QPNP_CHG_ITERM_MIN_MA 100 #define QPNP_CHG_ITERM_MAX_MA 250 #define QPNP_CHG_ITERM_STEP_MA 50 #define QPNP_CHG_ITERM_MASK 0x03 static int qpnp_chg_ibatterm_set(struct qpnp_chg_chip *chip, int term_current) { u8 temp; if (term_current < QPNP_CHG_ITERM_MIN_MA || term_current > QPNP_CHG_ITERM_MAX_MA) { pr_err("bad mA=%d asked to set\n", term_current); return -EINVAL; } temp = (term_current - QPNP_CHG_ITERM_MIN_MA) / QPNP_CHG_ITERM_STEP_MA; return qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_IBAT_TERM_CHGR, QPNP_CHG_ITERM_MASK, temp, 1); } #define QPNP_CHG_IBATMAX_MIN 50 #define QPNP_CHG_IBATMAX_MAX 3250 static int qpnp_chg_ibatmax_set(struct qpnp_chg_chip *chip, int chg_current) { u8 temp; if (chg_current < QPNP_CHG_IBATMAX_MIN || chg_current > QPNP_CHG_IBATMAX_MAX) { pr_err("bad mA=%d asked to set\n", chg_current); return -EINVAL; } temp = chg_current / QPNP_CHG_I_STEP_MA; return qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_IBAT_MAX, QPNP_CHG_I_MASK, temp, 1); } #define QPNP_CHG_TCHG_MASK 0x7F #define QPNP_CHG_TCHG_MIN 4 #define QPNP_CHG_TCHG_MAX 512 #define QPNP_CHG_TCHG_STEP 4 static int qpnp_chg_tchg_max_set(struct qpnp_chg_chip *chip, int minutes) { u8 temp; if (minutes < QPNP_CHG_TCHG_MIN || minutes > QPNP_CHG_TCHG_MAX) { pr_err("bad max minutes =%d asked to set\n", minutes); return -EINVAL; } temp = (minutes - 1)/QPNP_CHG_TCHG_STEP; return qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_TCHG_MAX, QPNP_CHG_TCHG_MASK, temp, 1); } #define QPNP_CHG_V_MIN_MV 3240 #define QPNP_CHG_V_MAX_MV 4500 #define QPNP_CHG_V_STEP_MV 10 static int qpnp_chg_vddsafe_set(struct qpnp_chg_chip *chip, int voltage) { u8 temp; if (voltage < QPNP_CHG_V_MIN_MV || voltage > QPNP_CHG_V_MAX_MV) { pr_err("bad mV=%d asked to set\n", voltage); return -EINVAL; } temp = (voltage - QPNP_CHG_V_MIN_MV) / QPNP_CHG_V_STEP_MV; pr_debug("voltage=%d setting %02x\n", voltage, temp); return qpnp_chg_write(chip, &temp, chip->chgr_base + CHGR_VDD_SAFE, 1); } #define QPNP_CHG_VDDMAX_MIN 3400 static int qpnp_chg_vddmax_set(struct qpnp_chg_chip *chip, int voltage) { u8 temp = 0; if (voltage < QPNP_CHG_VDDMAX_MIN || voltage > QPNP_CHG_V_MAX_MV) { pr_err("bad mV=%d asked to set\n", voltage); return -EINVAL; } chip->set_vddmax_mv = voltage + chip->delta_vddmax_mv; temp = (chip->set_vddmax_mv - QPNP_CHG_V_MIN_MV) / QPNP_CHG_V_STEP_MV; pr_debug("voltage=%d setting %02x\n", chip->set_vddmax_mv, temp); return qpnp_chg_write(chip, &temp, chip->chgr_base + CHGR_VDD_MAX, 1); } #define BOOST_MIN_UV 4200000 #define BOOST_MAX_UV 5500000 #define BOOST_STEP_UV 50000 #define BOOST_MIN 16 #define N_BOOST_V ((BOOST_MAX_UV - BOOST_MIN_UV) / BOOST_STEP_UV + 1) static int qpnp_boost_vset(struct qpnp_chg_chip *chip, int voltage) { u8 reg = 0; if (voltage < BOOST_MIN_UV || voltage > BOOST_MAX_UV) { pr_err("invalid voltage requested %d uV\n", voltage); return -EINVAL; } reg = DIV_ROUND_UP(voltage - BOOST_MIN_UV, BOOST_STEP_UV) + BOOST_MIN; pr_debug("voltage=%d setting %02x\n", voltage, reg); return qpnp_chg_write(chip, ®, chip->boost_base + BOOST_VSET, 1); } static int qpnp_boost_vget_uv(struct qpnp_chg_chip *chip) { int rc; u8 boost_reg; rc = qpnp_chg_read(chip, &boost_reg, chip->boost_base + BOOST_VSET, 1); if (rc) { pr_err("failed to read BOOST_VSET rc=%d\n", rc); return rc; } if (boost_reg < BOOST_MIN) { pr_err("Invalid reading from 0x%x\n", boost_reg); return -EINVAL; } return BOOST_MIN_UV + ((boost_reg - BOOST_MIN) * BOOST_STEP_UV); } /* JEITA compliance logic */ static void qpnp_chg_set_appropriate_vddmax(struct qpnp_chg_chip *chip) { if (chip->bat_is_cool) qpnp_chg_vddmax_set(chip, chip->cool_bat_mv); else if (chip->bat_is_warm) qpnp_chg_vddmax_set(chip, chip->warm_bat_mv); else qpnp_chg_vddmax_set(chip, chip->max_voltage_mv); } static void qpnp_chg_set_appropriate_vbatdet(struct qpnp_chg_chip *chip) { if (chip->bat_is_cool) qpnp_chg_vbatdet_set(chip, chip->cool_bat_mv - chip->resume_delta_mv); else if (chip->bat_is_warm) qpnp_chg_vbatdet_set(chip, chip->warm_bat_mv - chip->resume_delta_mv); else qpnp_chg_vbatdet_set(chip, chip->max_voltage_mv - chip->resume_delta_mv); } static void qpnp_chg_set_appropriate_battery_current(struct qpnp_chg_chip *chip) { unsigned int chg_current = chip->max_bat_chg_current; if (chip->bat_is_cool) chg_current = min(chg_current, chip->cool_bat_chg_ma); if (chip->bat_is_warm) chg_current = min(chg_current, chip->warm_bat_chg_ma); if (chip->therm_lvl_sel != 0 && chip->thermal_mitigation) chg_current = min(chg_current, chip->thermal_mitigation[chip->therm_lvl_sel]); pr_debug("setting %d mA\n", chg_current); qpnp_chg_ibatmax_set(chip, chg_current); } static void qpnp_batt_system_temp_level_set(struct qpnp_chg_chip *chip, int lvl_sel) { if (lvl_sel >= 0 && lvl_sel < chip->thermal_levels) { chip->therm_lvl_sel = lvl_sel; if (lvl_sel == (chip->thermal_levels - 1)) { /* disable charging if highest value selected */ qpnp_chg_buck_control(chip, 0); } else { qpnp_chg_buck_control(chip, 1); qpnp_chg_set_appropriate_battery_current(chip); } } else { pr_err("Unsupported level selected %d\n", lvl_sel); } } /* OTG regulator operations */ static int qpnp_chg_regulator_otg_enable(struct regulator_dev *rdev) { struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); return switch_usb_to_host_mode(chip); } static int qpnp_chg_regulator_otg_disable(struct regulator_dev *rdev) { struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); return switch_usb_to_charge_mode(chip); } static int qpnp_chg_regulator_otg_is_enabled(struct regulator_dev *rdev) { struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); return qpnp_chg_is_otg_en_set(chip); } static int qpnp_chg_regulator_boost_enable(struct regulator_dev *rdev) { struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); int rc; if (qpnp_chg_is_usb_chg_plugged_in(chip) && (chip->flags & BOOST_FLASH_WA)) { qpnp_chg_usb_suspend_enable(chip, 1); rc = qpnp_chg_masked_write(chip, chip->usb_chgpth_base + SEC_ACCESS, 0xFF, 0xA5, 1); if (rc) { pr_err("failed to write SEC_ACCESS rc=%d\n", rc); return rc; } rc = qpnp_chg_masked_write(chip, chip->usb_chgpth_base + COMP_OVR1, 0xFF, 0x2F, 1); if (rc) { pr_err("failed to write COMP_OVR1 rc=%d\n", rc); return rc; } } return qpnp_chg_masked_write(chip, chip->boost_base + BOOST_ENABLE_CONTROL, BOOST_PWR_EN, BOOST_PWR_EN, 1); } /* Boost regulator operations */ #define ABOVE_VBAT_WEAK BIT(1) static int qpnp_chg_regulator_boost_disable(struct regulator_dev *rdev) { struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); int rc; u8 vbat_sts; rc = qpnp_chg_masked_write(chip, chip->boost_base + BOOST_ENABLE_CONTROL, BOOST_PWR_EN, 0, 1); if (rc) { pr_err("failed to disable boost rc=%d\n", rc); return rc; } rc = qpnp_chg_read(chip, &vbat_sts, chip->chgr_base + CHGR_VBAT_STATUS, 1); if (rc) { pr_err("failed to read bat sts rc=%d\n", rc); return rc; } if (!(vbat_sts & ABOVE_VBAT_WEAK) && (chip->flags & BOOST_FLASH_WA)) { rc = qpnp_chg_masked_write(chip, chip->chgr_base + SEC_ACCESS, 0xFF, 0xA5, 1); if (rc) { pr_err("failed to write SEC_ACCESS rc=%d\n", rc); return rc; } rc = qpnp_chg_masked_write(chip, chip->chgr_base + COMP_OVR1, 0xFF, 0x20, 1); if (rc) { pr_err("failed to write COMP_OVR1 rc=%d\n", rc); return rc; } usleep(2000); rc = qpnp_chg_masked_write(chip, chip->chgr_base + SEC_ACCESS, 0xFF, 0xA5, 1); if (rc) { pr_err("failed to write SEC_ACCESS rc=%d\n", rc); return rc; } rc = qpnp_chg_masked_write(chip, chip->chgr_base + COMP_OVR1, 0xFF, 0x00, 1); if (rc) { pr_err("failed to write COMP_OVR1 rc=%d\n", rc); return rc; } } if (qpnp_chg_is_usb_chg_plugged_in(chip) && (chip->flags & BOOST_FLASH_WA)) { rc = qpnp_chg_masked_write(chip, chip->usb_chgpth_base + SEC_ACCESS, 0xFF, 0xA5, 1); if (rc) { pr_err("failed to write SEC_ACCESS rc=%d\n", rc); return rc; } rc = qpnp_chg_masked_write(chip, chip->usb_chgpth_base + COMP_OVR1, 0xFF, 0x00, 1); if (rc) { pr_err("failed to write COMP_OVR1 rc=%d\n", rc); return rc; } usleep(1000); qpnp_chg_usb_suspend_enable(chip, 0); } return rc; } static int qpnp_chg_regulator_boost_is_enabled(struct regulator_dev *rdev) { struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); return qpnp_chg_is_boost_en_set(chip); } static int qpnp_chg_regulator_boost_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV, unsigned *selector) { int uV = min_uV; int rc; struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); if (uV < BOOST_MIN_UV && max_uV >= BOOST_MIN_UV) uV = BOOST_MIN_UV; if (uV < BOOST_MIN_UV || uV > BOOST_MAX_UV) { pr_err("request %d uV is out of bounds\n", uV); return -EINVAL; } *selector = DIV_ROUND_UP(uV - BOOST_MIN_UV, BOOST_STEP_UV); if ((*selector * BOOST_STEP_UV + BOOST_MIN_UV) > max_uV) { pr_err("no available setpoint [%d, %d] uV\n", min_uV, max_uV); return -EINVAL; } rc = qpnp_boost_vset(chip, uV); return rc; } static int qpnp_chg_regulator_boost_get_voltage(struct regulator_dev *rdev) { struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); return qpnp_boost_vget_uv(chip); } static int qpnp_chg_regulator_boost_list_voltage(struct regulator_dev *rdev, unsigned selector) { if (selector >= N_BOOST_V) return 0; return BOOST_MIN_UV + (selector * BOOST_STEP_UV); } static struct regulator_ops qpnp_chg_otg_reg_ops = { .enable = qpnp_chg_regulator_otg_enable, .disable = qpnp_chg_regulator_otg_disable, .is_enabled = qpnp_chg_regulator_otg_is_enabled, }; static struct regulator_ops qpnp_chg_boost_reg_ops = { .enable = qpnp_chg_regulator_boost_enable, .disable = qpnp_chg_regulator_boost_disable, .is_enabled = qpnp_chg_regulator_boost_is_enabled, .set_voltage = qpnp_chg_regulator_boost_set_voltage, .get_voltage = qpnp_chg_regulator_boost_get_voltage, .list_voltage = qpnp_chg_regulator_boost_list_voltage, }; #define MIN_DELTA_MV_TO_INCREASE_VDD_MAX 13 #define MAX_DELTA_VDD_MAX_MV 30 static void qpnp_chg_adjust_vddmax(struct qpnp_chg_chip *chip, int vbat_mv) { int delta_mv, closest_delta_mv, sign; delta_mv = chip->max_voltage_mv - vbat_mv; if (delta_mv > 0 && delta_mv < MIN_DELTA_MV_TO_INCREASE_VDD_MAX) { pr_debug("vbat is not low enough to increase vdd\n"); return; } sign = delta_mv > 0 ? 1 : -1; closest_delta_mv = ((delta_mv + sign * QPNP_CHG_V_STEP_MV / 2) / QPNP_CHG_V_STEP_MV) * QPNP_CHG_V_STEP_MV; pr_debug("max_voltage = %d, vbat_mv = %d, delta_mv = %d, closest = %d\n", chip->max_voltage_mv, vbat_mv, delta_mv, closest_delta_mv); chip->delta_vddmax_mv = clamp(chip->delta_vddmax_mv + closest_delta_mv, -MAX_DELTA_VDD_MAX_MV, MAX_DELTA_VDD_MAX_MV); pr_debug("using delta_vddmax_mv = %d\n", chip->delta_vddmax_mv); qpnp_chg_set_appropriate_vddmax(chip); } #define CONSECUTIVE_COUNT 3 static void qpnp_eoc_work(struct work_struct *work) { struct delayed_work *dwork = to_delayed_work(work); struct qpnp_chg_chip *chip = container_of(dwork, struct qpnp_chg_chip, eoc_work); static int count; int ibat_ma, vbat_mv, rc = 0; u8 batt_sts = 0, buck_sts = 0, chg_sts = 0; wake_lock(&chip->eoc_wake_lock); qpnp_chg_charge_en(chip, !chip->charging_disabled); rc = qpnp_chg_read(chip, &batt_sts, INT_RT_STS(chip->bat_if_base), 1); if (rc) { pr_err("failed to read batt_if rc=%d\n", rc); return; } rc = qpnp_chg_read(chip, &buck_sts, INT_RT_STS(chip->buck_base), 1); if (rc) { pr_err("failed to read buck rc=%d\n", rc); return; } rc = qpnp_chg_read(chip, &chg_sts, INT_RT_STS(chip->chgr_base), 1); if (rc) { pr_err("failed to read chg_sts rc=%d\n", rc); return; } pr_debug("chgr: 0x%x, bat_if: 0x%x, buck: 0x%x\n", chg_sts, batt_sts, buck_sts); if (!qpnp_chg_is_usb_chg_plugged_in(chip) && !qpnp_chg_is_dc_chg_plugged_in(chip)) { pr_debug("no chg connected, stopping\n"); goto stop_eoc; } if ((batt_sts & BAT_FET_ON_IRQ) && (chg_sts & FAST_CHG_ON_IRQ || chg_sts & TRKL_CHG_ON_IRQ)) { ibat_ma = get_prop_current_now(chip) / 1000; vbat_mv = get_prop_battery_voltage_now(chip) / 1000; pr_debug("ibat_ma = %d vbat_mv = %d term_current_ma = %d\n", ibat_ma, vbat_mv, chip->term_current); if ((!(chg_sts & VBAT_DET_LOW_IRQ)) && (vbat_mv < (chip->max_voltage_mv - chip->resume_delta_mv))) { pr_debug("woke up too early\n"); qpnp_chg_enable_irq(&chip->chg_vbatdet_lo); goto stop_eoc; } if (buck_sts & VDD_LOOP_IRQ) qpnp_chg_adjust_vddmax(chip, vbat_mv); if (!(buck_sts & VDD_LOOP_IRQ)) { pr_debug("Not in CV\n"); count = 0; } else if ((ibat_ma * -1) > chip->term_current) { pr_debug("Not at EOC, battery current too high\n"); count = 0; } else if (ibat_ma > 0) { pr_debug("Charging but system demand increased\n"); count = 0; } else { if (count == CONSECUTIVE_COUNT) { pr_info("End of Charging\n"); qpnp_chg_charge_en(chip, 0); chip->chg_done = true; power_supply_changed(&chip->batt_psy); qpnp_chg_enable_irq(&chip->chg_vbatdet_lo); goto stop_eoc; } else { count += 1; pr_debug("EOC count = %d\n", count); } } } else { pr_debug("not charging\n"); goto stop_eoc; } schedule_delayed_work(&chip->eoc_work, msecs_to_jiffies(EOC_CHECK_PERIOD_MS)); return; stop_eoc: count = 0; wake_unlock(&chip->eoc_wake_lock); } #define HYSTERISIS_DECIDEGC 20 static void qpnp_chg_adc_notification(enum qpnp_tm_state state, void *ctx) { struct qpnp_chg_chip *chip = ctx; bool bat_warm = 0, bat_cool = 0; int temp; if (state >= ADC_TM_STATE_NUM) { pr_err("invalid notification %d\n", state); return; } temp = get_prop_batt_temp(chip); pr_debug("temp = %d state = %s\n", temp, state == ADC_TM_WARM_STATE ? "warm" : "cool"); if (state == ADC_TM_WARM_STATE) { if (temp > chip->warm_bat_decidegc) { /* Normal to warm */ bat_warm = true; bat_cool = false; chip->adc_param.low_temp = chip->warm_bat_decidegc - HYSTERISIS_DECIDEGC; chip->adc_param.state_request = ADC_TM_COOL_THR_ENABLE; } else if (temp > chip->cool_bat_decidegc + HYSTERISIS_DECIDEGC){ /* Cool to normal */ bat_warm = false; bat_cool = false; chip->adc_param.low_temp = chip->cool_bat_decidegc; chip->adc_param.high_temp = chip->warm_bat_decidegc; chip->adc_param.state_request = ADC_TM_HIGH_LOW_THR_ENABLE; } } else { if (temp < chip->cool_bat_decidegc) { /* Normal to cool */ bat_warm = false; bat_cool = true; chip->adc_param.high_temp = chip->cool_bat_decidegc + HYSTERISIS_DECIDEGC; chip->adc_param.state_request = ADC_TM_WARM_THR_ENABLE; } else if (temp < chip->warm_bat_decidegc - HYSTERISIS_DECIDEGC){ /* Warm to normal */ bat_warm = false; bat_cool = false; chip->adc_param.low_temp = chip->cool_bat_decidegc; chip->adc_param.high_temp = chip->warm_bat_decidegc; chip->adc_param.state_request = ADC_TM_HIGH_LOW_THR_ENABLE; } } if (chip->bat_is_cool ^ bat_cool || chip->bat_is_warm ^ bat_warm) { chip->bat_is_cool = bat_cool; chip->bat_is_warm = bat_warm; /* set appropriate voltages and currents */ qpnp_chg_set_appropriate_vddmax(chip); qpnp_chg_set_appropriate_battery_current(chip); qpnp_chg_set_appropriate_vbatdet(chip); } if (qpnp_adc_tm_channel_measure(&chip->adc_param)) pr_err("request ADC error\n"); } static int qpnp_batt_power_set_property(struct power_supply *psy, enum power_supply_property psp, const union power_supply_propval *val) { struct qpnp_chg_chip *chip = container_of(psy, struct qpnp_chg_chip, batt_psy); switch (psp) { case POWER_SUPPLY_PROP_CHARGING_ENABLED: chip->charging_disabled = !(val->intval); qpnp_chg_charge_en(chip, !chip->charging_disabled); qpnp_chg_force_run_on_batt(chip, chip->charging_disabled); break; case POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL: qpnp_batt_system_temp_level_set(chip, val->intval); break; default: return -EINVAL; } power_supply_changed(&chip->batt_psy); return 0; } static void qpnp_chg_setup_flags(struct qpnp_chg_chip *chip) { if (chip->revision > 0 && chip->type == SMBB) chip->flags |= CHG_FLAGS_VCP_WA; if (chip->type == SMBB) chip->flags |= BOOST_FLASH_WA; if (chip->type == SMBBP) chip->flags |= BOOST_FLASH_WA; } static int qpnp_chg_request_irqs(struct qpnp_chg_chip *chip) { int rc = 0; struct resource *resource; struct spmi_resource *spmi_resource; u8 subtype; struct spmi_device *spmi = chip->spmi; spmi_for_each_container_dev(spmi_resource, chip->spmi) { if (!spmi_resource) { pr_err("qpnp_chg: spmi resource absent\n"); return rc; } resource = spmi_get_resource(spmi, spmi_resource, IORESOURCE_MEM, 0); if (!(resource && resource->start)) { pr_err("node %s IO resource absent!\n", spmi->dev.of_node->full_name); return rc; } rc = qpnp_chg_read(chip, &subtype, resource->start + REG_OFFSET_PERP_SUBTYPE, 1); if (rc) { pr_err("Peripheral subtype read failed rc=%d\n", rc); return rc; } switch (subtype) { case SMBB_CHGR_SUBTYPE: case SMBBP_CHGR_SUBTYPE: case SMBCL_CHGR_SUBTYPE: chip->chg_fastchg.irq = spmi_get_irq_byname(spmi, spmi_resource, "fast-chg-on"); if (chip->chg_fastchg.irq < 0) { pr_err("Unable to get fast-chg-on irq\n"); return rc; } chip->chg_trklchg.irq = spmi_get_irq_byname(spmi, spmi_resource, "trkl-chg-on"); if (chip->chg_trklchg.irq < 0) { pr_err("Unable to get trkl-chg-on irq\n"); return rc; } chip->chg_failed.irq = spmi_get_irq_byname(spmi, spmi_resource, "chg-failed"); if (chip->chg_failed.irq < 0) { pr_err("Unable to get chg_failed irq\n"); return rc; } chip->chg_vbatdet_lo.irq = spmi_get_irq_byname(spmi, spmi_resource, "vbat-det-lo"); if (chip->chg_vbatdet_lo.irq < 0) { pr_err("Unable to get fast-chg-on irq\n"); return rc; } rc |= devm_request_irq(chip->dev, chip->chg_failed.irq, qpnp_chg_chgr_chg_failed_irq_handler, IRQF_TRIGGER_RISING, "chg-failed", chip); if (rc < 0) { pr_err("Can't request %d chg-failed: %d\n", chip->chg_failed.irq, rc); return rc; } rc |= devm_request_irq(chip->dev, chip->chg_fastchg.irq, qpnp_chg_chgr_chg_fastchg_irq_handler, IRQF_TRIGGER_RISING, "fast-chg-on", chip); if (rc < 0) { pr_err("Can't request %d fast-chg-on: %d\n", chip->chg_fastchg.irq, rc); return rc; } rc |= devm_request_irq(chip->dev, chip->chg_trklchg.irq, qpnp_chg_chgr_chg_trklchg_irq_handler, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "trkl-chg-on", chip); if (rc < 0) { pr_err("Can't request %d trkl-chg-on: %d\n", chip->chg_trklchg.irq, rc); return rc; } rc |= devm_request_irq(chip->dev, chip->chg_vbatdet_lo.irq, qpnp_chg_vbatdet_lo_irq_handler, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "vbat-det-lo", chip); if (rc < 0) { pr_err("Can't request %d vbat-det-lo: %d\n", chip->chg_vbatdet_lo.irq, rc); return rc; } enable_irq_wake(chip->chg_trklchg.irq); enable_irq_wake(chip->chg_failed.irq); qpnp_chg_disable_irq(&chip->chg_vbatdet_lo); enable_irq_wake(chip->chg_vbatdet_lo.irq); break; case SMBB_BAT_IF_SUBTYPE: case SMBBP_BAT_IF_SUBTYPE: case SMBCL_BAT_IF_SUBTYPE: chip->batt_pres.irq = spmi_get_irq_byname(spmi, spmi_resource, "batt-pres"); if (chip->batt_pres.irq < 0) { pr_err("Unable to get batt-pres irq\n"); return rc; } rc = devm_request_irq(chip->dev, chip->batt_pres.irq, qpnp_chg_bat_if_batt_pres_irq_handler, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "batt-pres", chip); if (rc < 0) { pr_err("Can't request %d batt-pres irq: %d\n", chip->batt_pres.irq, rc); return rc; } enable_irq_wake(chip->batt_pres.irq); break; case SMBB_USB_CHGPTH_SUBTYPE: case SMBBP_USB_CHGPTH_SUBTYPE: case SMBCL_USB_CHGPTH_SUBTYPE: chip->usbin_valid.irq = spmi_get_irq_byname(spmi, spmi_resource, "usbin-valid"); if (chip->usbin_valid.irq < 0) { pr_err("Unable to get usbin irq\n"); return rc; } rc = devm_request_irq(chip->dev, chip->usbin_valid.irq, qpnp_chg_usb_usbin_valid_irq_handler, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "usbin-valid", chip); if (rc < 0) { pr_err("Can't request %d usbin-valid: %d\n", chip->usbin_valid.irq, rc); return rc; } chip->chg_gone.irq = spmi_get_irq_byname(spmi, spmi_resource, "chg-gone"); if (chip->chg_gone.irq < 0) { pr_err("Unable to get chg-gone irq\n"); return rc; } rc = devm_request_irq(chip->dev, chip->chg_gone.irq, qpnp_chg_usb_chg_gone_irq_handler, IRQF_TRIGGER_RISING, "chg-gone", chip); if (rc < 0) { pr_err("Can't request %d chg-gone: %d\n", chip->chg_gone.irq, rc); return rc; } enable_irq_wake(chip->usbin_valid.irq); enable_irq_wake(chip->chg_gone.irq); break; case SMBB_DC_CHGPTH_SUBTYPE: chip->dcin_valid.irq = spmi_get_irq_byname(spmi, spmi_resource, "dcin-valid"); if (chip->dcin_valid.irq < 0) { pr_err("Unable to get dcin irq\n"); return -rc; } rc = devm_request_irq(chip->dev, chip->dcin_valid.irq, qpnp_chg_dc_dcin_valid_irq_handler, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "dcin-valid", chip); if (rc < 0) { pr_err("Can't request %d dcin-valid: %d\n", chip->dcin_valid.irq, rc); return rc; } enable_irq_wake(chip->dcin_valid.irq); break; } } return rc; } #define WDOG_EN_BIT BIT(7) static int qpnp_chg_hwinit(struct qpnp_chg_chip *chip, u8 subtype, struct spmi_resource *spmi_resource) { int rc = 0; u8 reg = 0; struct regulator_init_data *init_data; struct regulator_desc *rdesc; switch (subtype) { case SMBB_CHGR_SUBTYPE: case SMBBP_CHGR_SUBTYPE: case SMBCL_CHGR_SUBTYPE: rc = qpnp_chg_vinmin_set(chip, chip->min_voltage_mv); if (rc) { pr_debug("failed setting min_voltage rc=%d\n", rc); return rc; } rc = qpnp_chg_vddmax_set(chip, chip->max_voltage_mv); if (rc) { pr_debug("failed setting max_voltage rc=%d\n", rc); return rc; } rc = qpnp_chg_vddsafe_set(chip, chip->safe_voltage_mv); if (rc) { pr_debug("failed setting safe_voltage rc=%d\n", rc); return rc; } rc = qpnp_chg_vbatdet_set(chip, chip->max_voltage_mv - chip->resume_delta_mv); if (rc) { pr_debug("failed setting resume_voltage rc=%d\n", rc); return rc; } rc = qpnp_chg_ibatmax_set(chip, chip->max_bat_chg_current); if (rc) { pr_debug("failed setting ibatmax rc=%d\n", rc); return rc; } if (chip->term_current) { rc = qpnp_chg_ibatterm_set(chip, chip->term_current); if (rc) { pr_debug("failed setting ibatterm rc=%d\n", rc); return rc; } } rc = qpnp_chg_ibatsafe_set(chip, chip->safe_current); if (rc) { pr_debug("failed setting ibat_Safe rc=%d\n", rc); return rc; } rc = qpnp_chg_tchg_max_set(chip, chip->tchg_mins); if (rc) { pr_debug("failed setting tchg_mins rc=%d\n", rc); return rc; } /* HACK: Disable wdog */ rc = qpnp_chg_masked_write(chip, chip->chgr_base + 0x62, 0xFF, 0xA0, 1); /* HACK: use analog EOC */ rc = qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_IBAT_TERM_CHGR, 0xFF, 0x08, 1); break; case SMBB_BUCK_SUBTYPE: case SMBBP_BUCK_SUBTYPE: case SMBCL_BUCK_SUBTYPE: rc = qpnp_chg_toggle_chg_done_logic(chip, 0); if (rc) return rc; rc = qpnp_chg_masked_write(chip, chip->buck_base + CHGR_BUCK_BCK_VBAT_REG_MODE, BUCK_VBAT_REG_NODE_SEL_BIT, BUCK_VBAT_REG_NODE_SEL_BIT, 1); if (rc) { pr_debug("failed to enable IR drop comp rc=%d\n", rc); return rc; } break; case SMBB_BAT_IF_SUBTYPE: case SMBBP_BAT_IF_SUBTYPE: case SMBCL_BAT_IF_SUBTYPE: /* Select battery presence detection */ switch (chip->bpd_detection) { case BPD_TYPE_BAT_THM: reg = BAT_THM_EN; break; case BPD_TYPE_BAT_ID: reg = BAT_ID_EN; break; case BPD_TYPE_BAT_THM_BAT_ID: reg = BAT_THM_EN | BAT_ID_EN; break; default: reg = BAT_THM_EN; break; } rc = qpnp_chg_masked_write(chip, chip->bat_if_base + BAT_IF_BPD_CTRL, BAT_IF_BPD_CTRL_SEL, reg, 1); if (rc) { pr_debug("failed to chose BPD rc=%d\n", rc); return rc; } /* Force on VREF_BAT_THM */ rc = qpnp_chg_masked_write(chip, chip->bat_if_base + BAT_IF_VREF_BAT_THM_CTRL, VREF_BATT_THERM_FORCE_ON, VREF_BATT_THERM_FORCE_ON, 1); if (rc) { pr_debug("failed to force on VREF_BAT_THM rc=%d\n", rc); return rc; } break; case SMBB_USB_CHGPTH_SUBTYPE: case SMBBP_USB_CHGPTH_SUBTYPE: case SMBCL_USB_CHGPTH_SUBTYPE: if (qpnp_chg_is_usb_chg_plugged_in(chip)) { rc = qpnp_chg_masked_write(chip, chip->usb_chgpth_base + CHGR_USB_ENUM_T_STOP, ENUM_T_STOP_BIT, ENUM_T_STOP_BIT, 1); if (rc) { pr_err("failed to write enum stop rc=%d\n", rc); return -ENXIO; } } init_data = of_get_regulator_init_data(chip->dev, spmi_resource->of_node); if (!init_data) { pr_err("unable to allocate memory\n"); return -ENOMEM; } if (init_data->constraints.name) { if (of_get_property(chip->dev->of_node, "otg-parent-supply", NULL)) init_data->supply_regulator = "otg-parent"; rdesc = &(chip->otg_vreg.rdesc); rdesc->owner = THIS_MODULE; rdesc->type = REGULATOR_VOLTAGE; rdesc->ops = &qpnp_chg_otg_reg_ops; rdesc->name = init_data->constraints.name; init_data->constraints.valid_ops_mask |= REGULATOR_CHANGE_STATUS; chip->otg_vreg.rdev = regulator_register(rdesc, chip->dev, init_data, chip, spmi_resource->of_node); if (IS_ERR(chip->otg_vreg.rdev)) { rc = PTR_ERR(chip->otg_vreg.rdev); chip->otg_vreg.rdev = NULL; if (rc != -EPROBE_DEFER) pr_err("OTG reg failed, rc=%d\n", rc); return rc; } } rc = qpnp_chg_masked_write(chip, chip->usb_chgpth_base + USB_OVP_CTL, USB_VALID_DEB_20MS, USB_VALID_DEB_20MS, 1); rc = qpnp_chg_masked_write(chip, chip->usb_chgpth_base + CHGR_USB_ENUM_T_STOP, ENUM_T_STOP_BIT, ENUM_T_STOP_BIT, 1); rc = qpnp_chg_masked_write(chip, chip->usb_chgpth_base + SEC_ACCESS, 0xFF, 0xA5, 1); rc = qpnp_chg_masked_write(chip, chip->usb_chgpth_base + USB_CHG_GONE_REV_BST, 0xFF, 0x80, 1); break; case SMBB_DC_CHGPTH_SUBTYPE: break; case SMBB_BOOST_SUBTYPE: case SMBBP_BOOST_SUBTYPE: init_data = of_get_regulator_init_data(chip->dev, spmi_resource->of_node); if (!init_data) { pr_err("unable to allocate memory\n"); return -ENOMEM; } if (init_data->constraints.name) { if (of_get_property(chip->dev->of_node, "boost-parent-supply", NULL)) init_data->supply_regulator = "boost-parent"; rdesc = &(chip->boost_vreg.rdesc); rdesc->owner = THIS_MODULE; rdesc->type = REGULATOR_VOLTAGE; rdesc->ops = &qpnp_chg_boost_reg_ops; rdesc->name = init_data->constraints.name; init_data->constraints.valid_ops_mask |= REGULATOR_CHANGE_STATUS | REGULATOR_CHANGE_VOLTAGE; chip->boost_vreg.rdev = regulator_register(rdesc, chip->dev, init_data, chip, spmi_resource->of_node); if (IS_ERR(chip->boost_vreg.rdev)) { rc = PTR_ERR(chip->boost_vreg.rdev); chip->boost_vreg.rdev = NULL; if (rc != -EPROBE_DEFER) pr_err("boost reg failed, rc=%d\n", rc); return rc; } } break; case SMBB_MISC_SUBTYPE: case SMBBP_MISC_SUBTYPE: case SMBCL_MISC_SUBTYPE: if (subtype == SMBB_MISC_SUBTYPE) chip->type = SMBB; else if (subtype == SMBBP_MISC_SUBTYPE) chip->type = SMBBP; else if (subtype == SMBCL_MISC_SUBTYPE) chip->type = SMBCL; pr_debug("Setting BOOT_DONE\n"); rc = qpnp_chg_masked_write(chip, chip->misc_base + CHGR_MISC_BOOT_DONE, CHGR_BOOT_DONE, CHGR_BOOT_DONE, 1); rc = qpnp_chg_read(chip, ®, chip->misc_base + MISC_REVISION2, 1); if (rc) { pr_err("failed to read revision register rc=%d\n", rc); return rc; } chip->revision = reg; break; default: pr_err("Invalid peripheral subtype\n"); } return rc; } #define OF_PROP_READ(chip, prop, qpnp_dt_property, retval, optional) \ do { \ if (retval) \ break; \ \ retval = of_property_read_u32(chip->spmi->dev.of_node, \ "qcom," qpnp_dt_property, \ &chip->prop); \ \ if ((retval == -EINVAL) && optional) \ retval = 0; \ else if (retval) \ pr_err("Error reading " #qpnp_dt_property \ " property rc = %d\n", rc); \ } while (0) static int qpnp_charger_read_dt_props(struct qpnp_chg_chip *chip) { int rc = 0; const char *bpd; OF_PROP_READ(chip, max_voltage_mv, "vddmax-mv", rc, 0); OF_PROP_READ(chip, min_voltage_mv, "vinmin-mv", rc, 0); OF_PROP_READ(chip, safe_voltage_mv, "vddsafe-mv", rc, 0); OF_PROP_READ(chip, resume_delta_mv, "vbatdet-delta-mv", rc, 0); OF_PROP_READ(chip, safe_current, "ibatsafe-ma", rc, 0); OF_PROP_READ(chip, max_bat_chg_current, "ibatmax-ma", rc, 0); if (rc) pr_err("failed to read required dt parameters %d\n", rc); OF_PROP_READ(chip, term_current, "ibatterm-ma", rc, 1); OF_PROP_READ(chip, maxinput_dc_ma, "maxinput-dc-ma", rc, 1); OF_PROP_READ(chip, maxinput_usb_ma, "maxinput-usb-ma", rc, 1); OF_PROP_READ(chip, warm_bat_decidegc, "warm-bat-decidegc", rc, 1); OF_PROP_READ(chip, cool_bat_decidegc, "cool-bat-decidegc", rc, 1); OF_PROP_READ(chip, tchg_mins, "tchg-mins", rc, 1); if (rc) return rc; rc = of_property_read_string(chip->spmi->dev.of_node, "qcom,bpd-detection", &bpd); if (rc) { /* Select BAT_THM as default BPD scheme */ chip->bpd_detection = BPD_TYPE_BAT_THM; } else { chip->bpd_detection = get_bpd(bpd); if (chip->bpd_detection < 0) { pr_err("failed to determine bpd schema %d\n", rc); return rc; } } /* Look up JEITA compliance parameters if cool and warm temp provided */ if (chip->cool_bat_decidegc && chip->warm_bat_decidegc) { rc = qpnp_adc_tm_is_ready(); if (rc) { pr_err("tm not ready %d\n", rc); return rc; } OF_PROP_READ(chip, warm_bat_chg_ma, "ibatmax-warm-ma", rc, 1); OF_PROP_READ(chip, cool_bat_chg_ma, "ibatmax-cool-ma", rc, 1); OF_PROP_READ(chip, warm_bat_mv, "warm-bat-mv", rc, 1); OF_PROP_READ(chip, cool_bat_mv, "cool-bat-mv", rc, 1); if (rc) return rc; } /* Get the charging-disabled property */ chip->charging_disabled = of_property_read_bool(chip->spmi->dev.of_node, "qcom,charging-disabled"); /* Get the duty-cycle-100p property */ chip->duty_cycle_100p = of_property_read_bool( chip->spmi->dev.of_node, "qcom,duty-cycle-100p"); if (chip->duty_cycle_100p) { rc = qpnp_buck_set_100_duty_cycle_enable(chip, 1); if (rc) { pr_err("failed to enable duty cycle %d\n", rc); return rc; } } /* Get the fake-batt-values property */ chip->use_default_batt_values = of_property_read_bool(chip->spmi->dev.of_node, "qcom,use-default-batt-values"); /* Disable charging when faking battery values */ if (chip->use_default_batt_values) chip->charging_disabled = true; of_get_property(chip->spmi->dev.of_node, "qcom,thermal-mitigation", &(chip->thermal_levels)); if (chip->thermal_levels > sizeof(int)) { chip->thermal_mitigation = kzalloc( chip->thermal_levels, GFP_KERNEL); if (chip->thermal_mitigation == NULL) { pr_err("thermal mitigation kzalloc() failed.\n"); return rc; } chip->thermal_levels /= sizeof(int); rc = of_property_read_u32_array(chip->spmi->dev.of_node, "qcom,thermal-mitigation", chip->thermal_mitigation, chip->thermal_levels); if (rc) { pr_err("qcom,thermal-mitigation missing in dt\n"); return rc; } } return rc; } static int __devinit qpnp_charger_probe(struct spmi_device *spmi) { u8 subtype; struct qpnp_chg_chip *chip; struct resource *resource; struct spmi_resource *spmi_resource; int rc = 0; chip = kzalloc(sizeof *chip, GFP_KERNEL); if (chip == NULL) { pr_err("kzalloc() failed.\n"); return -ENOMEM; } chip->dev = &(spmi->dev); chip->spmi = spmi; chip->usb_psy = power_supply_get_by_name("usb"); if (!chip->usb_psy) { pr_err("usb supply not found deferring probe\n"); rc = -EPROBE_DEFER; goto fail_chg_enable; } /* Get all device tree properties */ rc = qpnp_charger_read_dt_props(chip); if (rc) goto fail_chg_enable; /* Check if bat_if is set in DT and make sure VADC is present */ spmi_for_each_container_dev(spmi_resource, spmi) { if (!spmi_resource) { pr_err("qpnp_chg: spmi resource absent\n"); rc = -ENXIO; goto fail_chg_enable; } resource = spmi_get_resource(spmi, spmi_resource, IORESOURCE_MEM, 0); if (!(resource && resource->start)) { pr_err("node %s IO resource absent!\n", spmi->dev.of_node->full_name); rc = -ENXIO; goto fail_chg_enable; } rc = qpnp_chg_read(chip, &subtype, resource->start + REG_OFFSET_PERP_SUBTYPE, 1); if (rc) { pr_err("Peripheral subtype read failed rc=%d\n", rc); goto fail_chg_enable; } if (subtype == SMBB_BAT_IF_SUBTYPE || subtype == SMBBP_BAT_IF_SUBTYPE || subtype == SMBCL_BAT_IF_SUBTYPE){ rc = qpnp_vadc_is_ready(); if (rc) goto fail_chg_enable; } } spmi_for_each_container_dev(spmi_resource, spmi) { if (!spmi_resource) { pr_err("qpnp_chg: spmi resource absent\n"); rc = -ENXIO; goto fail_chg_enable; } resource = spmi_get_resource(spmi, spmi_resource, IORESOURCE_MEM, 0); if (!(resource && resource->start)) { pr_err("node %s IO resource absent!\n", spmi->dev.of_node->full_name); rc = -ENXIO; goto fail_chg_enable; } rc = qpnp_chg_read(chip, &subtype, resource->start + REG_OFFSET_PERP_SUBTYPE, 1); if (rc) { pr_err("Peripheral subtype read failed rc=%d\n", rc); goto fail_chg_enable; } switch (subtype) { case SMBB_CHGR_SUBTYPE: case SMBBP_CHGR_SUBTYPE: case SMBCL_CHGR_SUBTYPE: chip->chgr_base = resource->start; rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); if (rc) { pr_err("Failed to init subtype 0x%x rc=%d\n", subtype, rc); goto fail_chg_enable; } break; case SMBB_BUCK_SUBTYPE: case SMBBP_BUCK_SUBTYPE: case SMBCL_BUCK_SUBTYPE: chip->buck_base = resource->start; rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); if (rc) { pr_err("Failed to init subtype 0x%x rc=%d\n", subtype, rc); goto fail_chg_enable; } rc = qpnp_chg_masked_write(chip, chip->buck_base + SEC_ACCESS, 0xFF, 0xA5, 1); rc = qpnp_chg_masked_write(chip, chip->buck_base + BUCK_VCHG_OV, 0xff, 0x00, 1); rc = qpnp_chg_masked_write(chip, chip->buck_base + SEC_ACCESS, 0xFF, 0xA5, 1); rc = qpnp_chg_masked_write(chip, chip->buck_base + BUCK_TEST_SMBC_MODES, 0xFF, 0x80, 1); break; case SMBB_BAT_IF_SUBTYPE: case SMBBP_BAT_IF_SUBTYPE: case SMBCL_BAT_IF_SUBTYPE: chip->bat_if_base = resource->start; rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); if (rc) { pr_err("Failed to init subtype 0x%x rc=%d\n", subtype, rc); goto fail_chg_enable; } break; case SMBB_USB_CHGPTH_SUBTYPE: case SMBBP_USB_CHGPTH_SUBTYPE: case SMBCL_USB_CHGPTH_SUBTYPE: chip->usb_chgpth_base = resource->start; rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); if (rc) { if (rc != -EPROBE_DEFER) pr_err("Failed to init subtype 0x%x rc=%d\n", subtype, rc); goto fail_chg_enable; } break; case SMBB_DC_CHGPTH_SUBTYPE: chip->dc_chgpth_base = resource->start; rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); if (rc) { pr_err("Failed to init subtype 0x%x rc=%d\n", subtype, rc); goto fail_chg_enable; } break; case SMBB_BOOST_SUBTYPE: case SMBBP_BOOST_SUBTYPE: chip->boost_base = resource->start; rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); if (rc) { if (rc != -EPROBE_DEFER) pr_err("Failed to init subtype 0x%x rc=%d\n", subtype, rc); goto fail_chg_enable; } break; case SMBB_MISC_SUBTYPE: case SMBBP_MISC_SUBTYPE: case SMBCL_MISC_SUBTYPE: chip->misc_base = resource->start; rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); if (rc) { pr_err("Failed to init subtype=0x%x rc=%d\n", subtype, rc); goto fail_chg_enable; } break; default: pr_err("Invalid peripheral subtype=0x%x\n", subtype); rc = -EINVAL; goto fail_chg_enable; } } dev_set_drvdata(&spmi->dev, chip); device_init_wakeup(&spmi->dev, 1); if (chip->bat_if_base) { chip->batt_psy.name = "battery"; chip->batt_psy.type = POWER_SUPPLY_TYPE_BATTERY; chip->batt_psy.properties = msm_batt_power_props; chip->batt_psy.num_properties = ARRAY_SIZE(msm_batt_power_props); chip->batt_psy.get_property = qpnp_batt_power_get_property; chip->batt_psy.set_property = qpnp_batt_power_set_property; chip->batt_psy.property_is_writeable = qpnp_batt_property_is_writeable; chip->batt_psy.external_power_changed = qpnp_batt_external_power_changed; chip->batt_psy.supplied_to = pm_batt_supplied_to; chip->batt_psy.num_supplicants = ARRAY_SIZE(pm_batt_supplied_to); rc = power_supply_register(chip->dev, &chip->batt_psy); if (rc < 0) { pr_err("batt failed to register rc = %d\n", rc); goto fail_chg_enable; } INIT_WORK(&chip->adc_measure_work, qpnp_bat_if_adc_measure_work); } wake_lock_init(&chip->eoc_wake_lock, WAKE_LOCK_SUSPEND, "qpnp-chg-eoc-lock"); INIT_DELAYED_WORK(&chip->eoc_work, qpnp_eoc_work); INIT_DELAYED_WORK(&chip->arb_stop_work, qpnp_arb_stop_work); if (chip->dc_chgpth_base) { chip->dc_psy.name = "qpnp-dc"; chip->dc_psy.type = POWER_SUPPLY_TYPE_MAINS; chip->dc_psy.supplied_to = pm_power_supplied_to; chip->dc_psy.num_supplicants = ARRAY_SIZE(pm_power_supplied_to); chip->dc_psy.properties = pm_power_props_mains; chip->dc_psy.num_properties = ARRAY_SIZE(pm_power_props_mains); chip->dc_psy.get_property = qpnp_power_get_property_mains; rc = power_supply_register(chip->dev, &chip->dc_psy); if (rc < 0) { pr_err("power_supply_register dc failed rc=%d\n", rc); goto unregister_batt; } } /* Turn on appropriate workaround flags */ qpnp_chg_setup_flags(chip); if (chip->maxinput_dc_ma && chip->dc_chgpth_base) { rc = qpnp_chg_idcmax_set(chip, chip->maxinput_dc_ma); if (rc) { pr_err("Error setting idcmax property %d\n", rc); goto unregister_batt; } } if (chip->cool_bat_decidegc && chip->warm_bat_decidegc) { chip->adc_param.low_temp = chip->cool_bat_decidegc; chip->adc_param.high_temp = chip->warm_bat_decidegc; chip->adc_param.timer_interval = ADC_MEAS2_INTERVAL_1S; chip->adc_param.state_request = ADC_TM_HIGH_LOW_THR_ENABLE; chip->adc_param.btm_ctx = chip; chip->adc_param.threshold_notification = qpnp_chg_adc_notification; chip->adc_param.channel = LR_MUX1_BATT_THERM; if (get_prop_batt_present(chip)) { rc = qpnp_adc_tm_channel_measure(&chip->adc_param); if (rc) { pr_err("request ADC error %d\n", rc); goto fail_chg_enable; } } } qpnp_chg_charge_en(chip, !chip->charging_disabled); qpnp_chg_force_run_on_batt(chip, chip->charging_disabled); qpnp_chg_set_appropriate_vddmax(chip); rc = qpnp_chg_request_irqs(chip); if (rc) { pr_err("failed to request interrupts %d\n", rc); goto unregister_batt; } qpnp_chg_usb_usbin_valid_irq_handler(USBIN_VALID_IRQ, chip); power_supply_set_present(chip->usb_psy, qpnp_chg_is_usb_chg_plugged_in(chip)); /* Set USB psy online to avoid userspace from shutting down if battery * capacity is at zero and no chargers online. */ if (qpnp_chg_is_usb_chg_plugged_in(chip)) power_supply_set_online(chip->usb_psy, 1); pr_info("success chg_dis = %d, bpd = %d, usb = %d, dc = %d b_health = %d batt_present = %d\n", chip->charging_disabled, chip->bpd_detection, qpnp_chg_is_usb_chg_plugged_in(chip), qpnp_chg_is_dc_chg_plugged_in(chip), get_prop_batt_present(chip), get_prop_batt_health(chip)); return 0; unregister_batt: if (chip->bat_if_base) power_supply_unregister(&chip->batt_psy); fail_chg_enable: regulator_unregister(chip->otg_vreg.rdev); regulator_unregister(chip->boost_vreg.rdev); kfree(chip->thermal_mitigation); kfree(chip); dev_set_drvdata(&spmi->dev, NULL); return rc; } static int __devexit qpnp_charger_remove(struct spmi_device *spmi) { struct qpnp_chg_chip *chip = dev_get_drvdata(&spmi->dev); if (chip->cool_bat_decidegc && chip->warm_bat_decidegc && chip->batt_present) { qpnp_adc_tm_disable_chan_meas(&chip->adc_param); } cancel_work_sync(&chip->adc_measure_work); cancel_delayed_work_sync(&chip->eoc_work); regulator_unregister(chip->otg_vreg.rdev); regulator_unregister(chip->boost_vreg.rdev); dev_set_drvdata(&spmi->dev, NULL); kfree(chip); return 0; } static int qpnp_chg_resume(struct device *dev) { struct qpnp_chg_chip *chip = dev_get_drvdata(dev); int rc = 0; if (chip->bat_if_base) { rc = qpnp_chg_masked_write(chip, chip->bat_if_base + BAT_IF_VREF_BAT_THM_CTRL, VREF_BATT_THERM_FORCE_ON, VREF_BATT_THERM_FORCE_ON, 1); if (rc) pr_debug("failed to force on VREF_BAT_THM rc=%d\n", rc); } return rc; } static int qpnp_chg_suspend(struct device *dev) { struct qpnp_chg_chip *chip = dev_get_drvdata(dev); int rc = 0; if (chip->bat_if_base) { rc = qpnp_chg_masked_write(chip, chip->bat_if_base + BAT_IF_VREF_BAT_THM_CTRL, VREF_BATT_THERM_FORCE_ON, VREF_BAT_THM_ENABLED_FSM, 1); if (rc) pr_debug("failed to set FSM VREF_BAT_THM rc=%d\n", rc); } return rc; } static const struct dev_pm_ops qpnp_chg_pm_ops = { .resume = qpnp_chg_resume, .suspend = qpnp_chg_suspend, }; static struct spmi_driver qpnp_charger_driver = { .probe = qpnp_charger_probe, .remove = __devexit_p(qpnp_charger_remove), .driver = { .name = QPNP_CHARGER_DEV_NAME, .owner = THIS_MODULE, .of_match_table = qpnp_charger_match_table, .pm = &qpnp_chg_pm_ops, }, }; /** * qpnp_chg_init() - register spmi driver for qpnp-chg */ int __init qpnp_chg_init(void) { return spmi_driver_register(&qpnp_charger_driver); } module_init(qpnp_chg_init); static void __exit qpnp_chg_exit(void) { spmi_driver_unregister(&qpnp_charger_driver); } module_exit(qpnp_chg_exit); MODULE_DESCRIPTION("QPNP charger driver"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:" QPNP_CHARGER_DEV_NAME);