Xiaozhe Shi | d5d2141 | 2013-02-06 17:14:41 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | * |
| 12 | */ |
| 13 | #define pr_fmt(fmt) "%s: " fmt, __func__ |
| 14 | |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/slab.h> |
| 17 | #include <linux/err.h> |
| 18 | #include <linux/spmi.h> |
| 19 | #include <linux/of.h> |
| 20 | #include <linux/of_device.h> |
| 21 | #include <linux/radix-tree.h> |
| 22 | #include <linux/interrupt.h> |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 23 | #include <linux/delay.h> |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 24 | #include <linux/qpnp/qpnp-adc.h> |
| 25 | #include <linux/power_supply.h> |
| 26 | #include <linux/bitops.h> |
Abhijeet Dharmapurikar | 53ce35a | 2013-03-29 16:14:16 -0700 | [diff] [blame] | 27 | #include <linux/ratelimit.h> |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 28 | #include <linux/regulator/driver.h> |
| 29 | #include <linux/regulator/of_regulator.h> |
| 30 | #include <linux/regulator/machine.h> |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 31 | |
| 32 | /* Interrupt offsets */ |
| 33 | #define INT_RT_STS(base) (base + 0x10) |
| 34 | #define INT_SET_TYPE(base) (base + 0x11) |
| 35 | #define INT_POLARITY_HIGH(base) (base + 0x12) |
| 36 | #define INT_POLARITY_LOW(base) (base + 0x13) |
| 37 | #define INT_LATCHED_CLR(base) (base + 0x14) |
| 38 | #define INT_EN_SET(base) (base + 0x15) |
| 39 | #define INT_EN_CLR(base) (base + 0x16) |
| 40 | #define INT_LATCHED_STS(base) (base + 0x18) |
| 41 | #define INT_PENDING_STS(base) (base + 0x19) |
| 42 | #define INT_MID_SEL(base) (base + 0x1A) |
| 43 | #define INT_PRIORITY(base) (base + 0x1B) |
| 44 | |
| 45 | /* Peripheral register offsets */ |
| 46 | #define CHGR_CHG_OPTION 0x08 |
| 47 | #define CHGR_ATC_STATUS 0x0A |
| 48 | #define CHGR_VBAT_STATUS 0x0B |
| 49 | #define CHGR_IBAT_BMS 0x0C |
| 50 | #define CHGR_IBAT_STS 0x0D |
| 51 | #define CHGR_VDD_MAX 0x40 |
| 52 | #define CHGR_VDD_SAFE 0x41 |
| 53 | #define CHGR_VDD_MAX_STEP 0x42 |
| 54 | #define CHGR_IBAT_MAX 0x44 |
| 55 | #define CHGR_IBAT_SAFE 0x45 |
| 56 | #define CHGR_VIN_MIN 0x47 |
| 57 | #define CHGR_VIN_MIN_STEP 0x48 |
| 58 | #define CHGR_CHG_CTRL 0x49 |
| 59 | #define CHGR_CHG_FAILED 0x4A |
| 60 | #define CHGR_ATC_CTRL 0x4B |
| 61 | #define CHGR_ATC_FAILED 0x4C |
| 62 | #define CHGR_VBAT_TRKL 0x50 |
| 63 | #define CHGR_VBAT_WEAK 0x52 |
| 64 | #define CHGR_IBAT_ATC_A 0x54 |
| 65 | #define CHGR_IBAT_ATC_B 0x55 |
| 66 | #define CHGR_IBAT_TERM_CHGR 0x5B |
| 67 | #define CHGR_IBAT_TERM_BMS 0x5C |
| 68 | #define CHGR_VBAT_DET 0x5D |
| 69 | #define CHGR_TTRKL_MAX 0x5F |
| 70 | #define CHGR_TTRKL_MAX_EN 0x60 |
| 71 | #define CHGR_TCHG_MAX 0x61 |
| 72 | #define CHGR_CHG_WDOG_TIME 0x62 |
| 73 | #define CHGR_CHG_WDOG_DLY 0x63 |
| 74 | #define CHGR_CHG_WDOG_PET 0x64 |
| 75 | #define CHGR_CHG_WDOG_EN 0x65 |
David Keitel | 9201df3 | 2013-01-10 18:38:34 -0800 | [diff] [blame] | 76 | #define CHGR_IR_DROP_COMPEN 0x67 |
David Keitel | 22ed223 | 2013-01-28 11:04:07 -0800 | [diff] [blame] | 77 | #define CHGR_I_MAX_REG 0x44 |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 78 | #define CHGR_USB_USB_SUSP 0x47 |
David Keitel | 6f865cd | 2012-11-30 15:04:32 -0800 | [diff] [blame] | 79 | #define CHGR_USB_USB_OTG_CTL 0x48 |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 80 | #define CHGR_USB_ENUM_T_STOP 0x4E |
| 81 | #define CHGR_CHG_TEMP_THRESH 0x66 |
| 82 | #define CHGR_BAT_IF_PRES_STATUS 0x08 |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 83 | #define CHGR_STATUS 0x09 |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 84 | #define CHGR_BAT_IF_VCP 0x42 |
| 85 | #define CHGR_BAT_IF_BATFET_CTRL1 0x90 |
| 86 | #define CHGR_MISC_BOOT_DONE 0x42 |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 87 | #define CHGR_BUCK_COMPARATOR_OVRIDE_1 0xEB |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 88 | #define CHGR_BUCK_COMPARATOR_OVRIDE_3 0xED |
David Keitel | 9201df3 | 2013-01-10 18:38:34 -0800 | [diff] [blame] | 89 | #define CHGR_BUCK_BCK_VBAT_REG_MODE 0x74 |
Sridhar Parasuram | ae183bd | 2012-12-21 09:28:46 -0800 | [diff] [blame] | 90 | #define MISC_REVISION2 0x01 |
David Keitel | 5c3a770 | 2012-12-20 11:13:21 -0800 | [diff] [blame] | 91 | #define USB_OVP_CTL 0x42 |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 92 | #define USB_CHG_GONE_REV_BST 0xED |
| 93 | #define BUCK_VCHG_OV 0x77 |
| 94 | #define BUCK_TEST_SMBC_MODES 0xE6 |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 95 | #define SEC_ACCESS 0xD0 |
David Keitel | 85ae434 | 2013-04-16 11:46:00 -0700 | [diff] [blame] | 96 | #define BAT_IF_VREF_BAT_THM_CTRL 0x4A |
David Keitel | 796882d | 2013-05-14 18:01:11 -0700 | [diff] [blame] | 97 | #define BAT_IF_BPD_CTRL 0x48 |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 98 | #define BOOST_VSET 0x41 |
| 99 | #define BOOST_ENABLE_CONTROL 0x46 |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 100 | #define REG_OFFSET_PERP_SUBTYPE 0x05 |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 101 | |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 102 | /* SMBB peripheral subtype values */ |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 103 | #define SMBB_CHGR_SUBTYPE 0x01 |
| 104 | #define SMBB_BUCK_SUBTYPE 0x02 |
| 105 | #define SMBB_BAT_IF_SUBTYPE 0x03 |
| 106 | #define SMBB_USB_CHGPTH_SUBTYPE 0x04 |
| 107 | #define SMBB_DC_CHGPTH_SUBTYPE 0x05 |
| 108 | #define SMBB_BOOST_SUBTYPE 0x06 |
| 109 | #define SMBB_MISC_SUBTYPE 0x07 |
| 110 | |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 111 | /* SMBB peripheral subtype values */ |
| 112 | #define SMBBP_CHGR_SUBTYPE 0x31 |
| 113 | #define SMBBP_BUCK_SUBTYPE 0x32 |
| 114 | #define SMBBP_BAT_IF_SUBTYPE 0x33 |
| 115 | #define SMBBP_USB_CHGPTH_SUBTYPE 0x34 |
| 116 | #define SMBBP_BOOST_SUBTYPE 0x36 |
| 117 | #define SMBBP_MISC_SUBTYPE 0x37 |
| 118 | |
David Keitel | 46c9f7b | 2013-04-02 19:54:12 -0700 | [diff] [blame] | 119 | /* SMBCL peripheral subtype values */ |
| 120 | #define SMBCL_CHGR_SUBTYPE 0x41 |
| 121 | #define SMBCL_BUCK_SUBTYPE 0x42 |
| 122 | #define SMBCL_BAT_IF_SUBTYPE 0x43 |
| 123 | #define SMBCL_USB_CHGPTH_SUBTYPE 0x44 |
| 124 | #define SMBCL_MISC_SUBTYPE 0x47 |
| 125 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 126 | #define QPNP_CHARGER_DEV_NAME "qcom,qpnp-charger" |
| 127 | |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 128 | /* Status bits and masks */ |
| 129 | #define CHGR_BOOT_DONE BIT(7) |
| 130 | #define CHGR_CHG_EN BIT(7) |
| 131 | #define CHGR_ON_BAT_FORCE_BIT BIT(0) |
David Keitel | 5c3a770 | 2012-12-20 11:13:21 -0800 | [diff] [blame] | 132 | #define USB_VALID_DEB_20MS 0x03 |
David Keitel | 9201df3 | 2013-01-10 18:38:34 -0800 | [diff] [blame] | 133 | #define BUCK_VBAT_REG_NODE_SEL_BIT BIT(0) |
David Keitel | 85ae434 | 2013-04-16 11:46:00 -0700 | [diff] [blame] | 134 | #define VREF_BATT_THERM_FORCE_ON 0xC0 |
David Keitel | 796882d | 2013-05-14 18:01:11 -0700 | [diff] [blame] | 135 | #define BAT_IF_BPD_CTRL_SEL 0x03 |
David Keitel | 85ae434 | 2013-04-16 11:46:00 -0700 | [diff] [blame] | 136 | #define VREF_BAT_THM_ENABLED_FSM 0x80 |
David Keitel | 796882d | 2013-05-14 18:01:11 -0700 | [diff] [blame] | 137 | #define REV_BST_DETECTED BIT(0) |
| 138 | #define BAT_THM_EN BIT(1) |
| 139 | #define BAT_ID_EN BIT(0) |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 140 | #define BOOST_PWR_EN BIT(7) |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 141 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 142 | /* Interrupt definitions */ |
| 143 | /* smbb_chg_interrupts */ |
| 144 | #define CHG_DONE_IRQ BIT(7) |
| 145 | #define CHG_FAILED_IRQ BIT(6) |
| 146 | #define FAST_CHG_ON_IRQ BIT(5) |
| 147 | #define TRKL_CHG_ON_IRQ BIT(4) |
| 148 | #define STATE_CHANGE_ON_IR BIT(3) |
| 149 | #define CHGWDDOG_IRQ BIT(2) |
| 150 | #define VBAT_DET_HI_IRQ BIT(1) |
| 151 | #define VBAT_DET_LOW_IRQ BIT(0) |
| 152 | |
| 153 | /* smbb_buck_interrupts */ |
| 154 | #define VDD_LOOP_IRQ BIT(6) |
| 155 | #define IBAT_LOOP_IRQ BIT(5) |
| 156 | #define ICHG_LOOP_IRQ BIT(4) |
| 157 | #define VCHG_LOOP_IRQ BIT(3) |
| 158 | #define OVERTEMP_IRQ BIT(2) |
| 159 | #define VREF_OV_IRQ BIT(1) |
| 160 | #define VBAT_OV_IRQ BIT(0) |
| 161 | |
| 162 | /* smbb_bat_if_interrupts */ |
| 163 | #define PSI_IRQ BIT(4) |
| 164 | #define VCP_ON_IRQ BIT(3) |
| 165 | #define BAT_FET_ON_IRQ BIT(2) |
| 166 | #define BAT_TEMP_OK_IRQ BIT(1) |
| 167 | #define BATT_PRES_IRQ BIT(0) |
| 168 | |
| 169 | /* smbb_usb_interrupts */ |
| 170 | #define CHG_GONE_IRQ BIT(2) |
| 171 | #define USBIN_VALID_IRQ BIT(1) |
| 172 | #define COARSE_DET_USB_IRQ BIT(0) |
| 173 | |
| 174 | /* smbb_dc_interrupts */ |
| 175 | #define DCIN_VALID_IRQ BIT(1) |
| 176 | #define COARSE_DET_DC_IRQ BIT(0) |
| 177 | |
| 178 | /* smbb_boost_interrupts */ |
| 179 | #define LIMIT_ERROR_IRQ BIT(1) |
| 180 | #define BOOST_PWR_OK_IRQ BIT(0) |
| 181 | |
| 182 | /* smbb_misc_interrupts */ |
| 183 | #define TFTWDOG_IRQ BIT(0) |
| 184 | |
David Keitel | fe51cb9 | 2013-04-02 19:42:58 -0700 | [diff] [blame] | 185 | /* SMBB types */ |
| 186 | #define SMBB BIT(1) |
| 187 | #define SMBBP BIT(2) |
| 188 | #define SMBCL BIT(3) |
| 189 | |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 190 | /* Workaround flags */ |
| 191 | #define CHG_FLAGS_VCP_WA BIT(0) |
| 192 | |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 193 | struct qpnp_chg_irq { |
| 194 | unsigned int irq; |
| 195 | unsigned long disabled; |
| 196 | }; |
| 197 | |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 198 | struct qpnp_chg_regulator { |
| 199 | struct regulator_desc rdesc; |
| 200 | struct regulator_dev *rdev; |
| 201 | }; |
| 202 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 203 | /** |
| 204 | * struct qpnp_chg_chip - device information |
| 205 | * @dev: device pointer to access the parent |
| 206 | * @spmi: spmi pointer to access spmi information |
| 207 | * @chgr_base: charger peripheral base address |
| 208 | * @buck_base: buck peripheral base address |
| 209 | * @bat_if_base: battery interface peripheral base address |
| 210 | * @usb_chgpth_base: USB charge path peripheral base address |
| 211 | * @dc_chgpth_base: DC charge path peripheral base address |
| 212 | * @boost_base: boost peripheral base address |
| 213 | * @misc_base: misc peripheral base address |
| 214 | * @freq_base: freq peripheral base address |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 215 | * @bat_is_cool: indicates that battery is cool |
| 216 | * @bat_is_warm: indicates that battery is warm |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 217 | * @chg_done: indicates that charging is completed |
| 218 | * @usb_present: present status of usb |
| 219 | * @dc_present: present status of dc |
David Keitel | 42ae0aa | 2013-03-08 16:20:10 -0800 | [diff] [blame] | 220 | * @batt_present: present status of battery |
David Keitel | 3dd5e0f | 2012-12-12 18:12:36 -0800 | [diff] [blame] | 221 | * @use_default_batt_values: flag to report default battery properties |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 222 | * @max_voltage_mv: the max volts the batt should be charged up to |
David Keitel | 5d44fa5 | 2012-12-03 16:37:31 -0800 | [diff] [blame] | 223 | * @min_voltage_mv: min battery voltage before turning the FET on |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 224 | * @max_bat_chg_current: maximum battery charge current in mA |
| 225 | * @warm_bat_chg_ma: warm battery maximum charge current in mA |
| 226 | * @cool_bat_chg_ma: cool battery maximum charge current in mA |
| 227 | * @warm_bat_mv: warm temperature battery target voltage |
| 228 | * @cool_bat_mv: cool temperature battery target voltage |
| 229 | * @resume_delta_mv: voltage delta at which battery resumes charging |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 230 | * @term_current: the charging based term current |
David Keitel | 5d44fa5 | 2012-12-03 16:37:31 -0800 | [diff] [blame] | 231 | * @safe_current: battery safety current setting |
David Keitel | 22ed223 | 2013-01-28 11:04:07 -0800 | [diff] [blame] | 232 | * @maxinput_usb_ma: Maximum Input current USB |
| 233 | * @maxinput_dc_ma: Maximum Input current DC |
David Keitel | 0c1a453 | 2013-03-21 16:39:06 -0700 | [diff] [blame] | 234 | * @warm_bat_decidegc Warm battery temperature in degree Celsius |
| 235 | * @cool_bat_decidegc Cool battery temperature in degree Celsius |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 236 | * @revision: PMIC revision |
David Keitel | fe51cb9 | 2013-04-02 19:42:58 -0700 | [diff] [blame] | 237 | * @type: SMBB type |
| 238 | * @tchg_mins maximum allowed software initiated charge time |
David Keitel | be20825 | 2013-01-31 14:49:25 -0800 | [diff] [blame] | 239 | * @thermal_levels amount of thermal mitigation levels |
| 240 | * @thermal_mitigation thermal mitigation level values |
| 241 | * @therm_lvl_sel thermal mitigation level selection |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 242 | * @dc_psy power supply to export information to userspace |
| 243 | * @usb_psy power supply to export information to userspace |
| 244 | * @bms_psy power supply to export information to userspace |
| 245 | * @batt_psy: power supply to export information to userspace |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 246 | * @flags: flags to activate specific workarounds |
| 247 | * throughout the driver |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 248 | * |
| 249 | */ |
| 250 | struct qpnp_chg_chip { |
| 251 | struct device *dev; |
| 252 | struct spmi_device *spmi; |
| 253 | u16 chgr_base; |
| 254 | u16 buck_base; |
| 255 | u16 bat_if_base; |
| 256 | u16 usb_chgpth_base; |
| 257 | u16 dc_chgpth_base; |
| 258 | u16 boost_base; |
| 259 | u16 misc_base; |
| 260 | u16 freq_base; |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 261 | struct qpnp_chg_irq usbin_valid; |
| 262 | struct qpnp_chg_irq dcin_valid; |
| 263 | struct qpnp_chg_irq chg_gone; |
| 264 | struct qpnp_chg_irq chg_fastchg; |
| 265 | struct qpnp_chg_irq chg_trklchg; |
| 266 | struct qpnp_chg_irq chg_failed; |
| 267 | struct qpnp_chg_irq chg_vbatdet_lo; |
| 268 | struct qpnp_chg_irq batt_pres; |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 269 | bool bat_is_cool; |
| 270 | bool bat_is_warm; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 271 | bool chg_done; |
| 272 | bool usb_present; |
| 273 | bool dc_present; |
David Keitel | 42ae0aa | 2013-03-08 16:20:10 -0800 | [diff] [blame] | 274 | bool batt_present; |
David Keitel | 03ee6b5 | 2012-10-22 12:25:19 -0700 | [diff] [blame] | 275 | bool charging_disabled; |
David Keitel | 3dd5e0f | 2012-12-12 18:12:36 -0800 | [diff] [blame] | 276 | bool use_default_batt_values; |
David Keitel | 8b68d2d | 2013-05-14 23:36:51 -0700 | [diff] [blame] | 277 | bool duty_cycle_100p; |
David Keitel | 796882d | 2013-05-14 18:01:11 -0700 | [diff] [blame] | 278 | unsigned int bpd_detection; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 279 | unsigned int max_bat_chg_current; |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 280 | unsigned int warm_bat_chg_ma; |
| 281 | unsigned int cool_bat_chg_ma; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 282 | unsigned int safe_voltage_mv; |
| 283 | unsigned int max_voltage_mv; |
| 284 | unsigned int min_voltage_mv; |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 285 | unsigned int warm_bat_mv; |
| 286 | unsigned int cool_bat_mv; |
| 287 | unsigned int resume_delta_mv; |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 288 | int term_current; |
David Keitel | 22ed223 | 2013-01-28 11:04:07 -0800 | [diff] [blame] | 289 | unsigned int maxinput_usb_ma; |
| 290 | unsigned int maxinput_dc_ma; |
David Keitel | 0c1a453 | 2013-03-21 16:39:06 -0700 | [diff] [blame] | 291 | unsigned int warm_bat_decidegc; |
| 292 | unsigned int cool_bat_decidegc; |
David Keitel | 5d44fa5 | 2012-12-03 16:37:31 -0800 | [diff] [blame] | 293 | unsigned int safe_current; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 294 | unsigned int revision; |
David Keitel | fe51cb9 | 2013-04-02 19:42:58 -0700 | [diff] [blame] | 295 | unsigned int type; |
| 296 | unsigned int tchg_mins; |
David Keitel | be20825 | 2013-01-31 14:49:25 -0800 | [diff] [blame] | 297 | unsigned int thermal_levels; |
| 298 | unsigned int therm_lvl_sel; |
| 299 | unsigned int *thermal_mitigation; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 300 | struct power_supply dc_psy; |
| 301 | struct power_supply *usb_psy; |
| 302 | struct power_supply *bms_psy; |
| 303 | struct power_supply batt_psy; |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 304 | uint32_t flags; |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 305 | struct qpnp_adc_tm_btm_param adc_param; |
David Keitel | 79f4c93 | 2013-04-03 16:08:39 -0700 | [diff] [blame] | 306 | struct work_struct adc_measure_work; |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 307 | struct delayed_work arb_stop_work; |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 308 | struct delayed_work eoc_work; |
| 309 | struct wake_lock eoc_wake_lock; |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 310 | struct qpnp_chg_regulator otg_vreg; |
| 311 | struct qpnp_chg_regulator boost_vreg; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 312 | }; |
| 313 | |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 314 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 315 | static struct of_device_id qpnp_charger_match_table[] = { |
| 316 | { .compatible = QPNP_CHARGER_DEV_NAME, }, |
| 317 | {} |
| 318 | }; |
| 319 | |
David Keitel | 796882d | 2013-05-14 18:01:11 -0700 | [diff] [blame] | 320 | #define BPD_MAX 3 |
| 321 | |
| 322 | static const char *bpd_list[BPD_MAX] = { |
| 323 | "bpd_thm", |
| 324 | "bpd_id", |
| 325 | "bpd_thm_id", |
| 326 | }; |
| 327 | |
| 328 | static inline int |
| 329 | get_bpd(const char *name) |
| 330 | { |
| 331 | int i = 0; |
| 332 | for (i = 0 ; i < BPD_MAX; i++) { |
| 333 | if (strcmp(name, bpd_list[i]) == 0) |
| 334 | return i; |
| 335 | } |
| 336 | return -EINVAL; |
| 337 | } |
| 338 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 339 | static int |
| 340 | qpnp_chg_read(struct qpnp_chg_chip *chip, u8 *val, |
| 341 | u16 base, int count) |
| 342 | { |
| 343 | int rc; |
| 344 | struct spmi_device *spmi = chip->spmi; |
| 345 | |
| 346 | rc = spmi_ext_register_readl(spmi->ctrl, spmi->sid, base, val, |
| 347 | count); |
| 348 | if (rc) { |
| 349 | pr_err("SPMI read failed base=0x%02x sid=0x%02x rc=%d\n", base, |
| 350 | spmi->sid, rc); |
| 351 | return rc; |
| 352 | } |
| 353 | return 0; |
| 354 | } |
| 355 | |
| 356 | static int |
| 357 | qpnp_chg_write(struct qpnp_chg_chip *chip, u8 *val, |
| 358 | u16 base, int count) |
| 359 | { |
| 360 | int rc; |
| 361 | struct spmi_device *spmi = chip->spmi; |
| 362 | |
| 363 | rc = spmi_ext_register_writel(spmi->ctrl, spmi->sid, base, val, |
| 364 | count); |
| 365 | if (rc) { |
| 366 | pr_err("write failed base=0x%02x sid=0x%02x rc=%d\n", |
| 367 | base, spmi->sid, rc); |
| 368 | return rc; |
| 369 | } |
| 370 | |
| 371 | return 0; |
| 372 | } |
| 373 | |
| 374 | static int |
| 375 | qpnp_chg_masked_write(struct qpnp_chg_chip *chip, u16 base, |
| 376 | u8 mask, u8 val, int count) |
| 377 | { |
| 378 | int rc; |
| 379 | u8 reg; |
| 380 | |
| 381 | rc = qpnp_chg_read(chip, ®, base, count); |
| 382 | if (rc) { |
| 383 | pr_err("spmi read failed: addr=%03X, rc=%d\n", base, rc); |
| 384 | return rc; |
| 385 | } |
| 386 | pr_debug("addr = 0x%x read 0x%x\n", base, reg); |
| 387 | |
| 388 | reg &= ~mask; |
| 389 | reg |= val & mask; |
| 390 | |
| 391 | pr_debug("Writing 0x%x\n", reg); |
| 392 | |
| 393 | rc = qpnp_chg_write(chip, ®, base, count); |
| 394 | if (rc) { |
| 395 | pr_err("spmi write failed: addr=%03X, rc=%d\n", base, rc); |
| 396 | return rc; |
| 397 | } |
| 398 | |
| 399 | return 0; |
| 400 | } |
| 401 | |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 402 | static void |
| 403 | qpnp_chg_enable_irq(struct qpnp_chg_irq *irq) |
| 404 | { |
| 405 | if (__test_and_clear_bit(0, &irq->disabled)) { |
| 406 | pr_debug("number = %d\n", irq->irq); |
| 407 | enable_irq(irq->irq); |
| 408 | } |
| 409 | } |
| 410 | |
| 411 | static void |
| 412 | qpnp_chg_disable_irq(struct qpnp_chg_irq *irq) |
| 413 | { |
| 414 | if (!__test_and_set_bit(0, &irq->disabled)) { |
| 415 | pr_debug("number = %d\n", irq->irq); |
| 416 | disable_irq_nosync(irq->irq); |
| 417 | } |
| 418 | } |
| 419 | |
David Keitel | 6f865cd | 2012-11-30 15:04:32 -0800 | [diff] [blame] | 420 | #define USB_OTG_EN_BIT BIT(0) |
| 421 | static int |
| 422 | qpnp_chg_is_otg_en_set(struct qpnp_chg_chip *chip) |
| 423 | { |
| 424 | u8 usb_otg_en; |
| 425 | int rc; |
| 426 | |
| 427 | rc = qpnp_chg_read(chip, &usb_otg_en, |
| 428 | chip->usb_chgpth_base + CHGR_USB_USB_OTG_CTL, |
| 429 | 1); |
| 430 | |
| 431 | if (rc) { |
| 432 | pr_err("spmi read failed: addr=%03X, rc=%d\n", |
| 433 | chip->usb_chgpth_base + CHGR_STATUS, rc); |
| 434 | return rc; |
| 435 | } |
| 436 | pr_debug("usb otg en 0x%x\n", usb_otg_en); |
| 437 | |
| 438 | return (usb_otg_en & USB_OTG_EN_BIT) ? 1 : 0; |
| 439 | } |
| 440 | |
David Keitel | 42ae0aa | 2013-03-08 16:20:10 -0800 | [diff] [blame] | 441 | static int |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 442 | qpnp_chg_is_boost_en_set(struct qpnp_chg_chip *chip) |
| 443 | { |
| 444 | u8 boost_en_ctl; |
| 445 | int rc; |
| 446 | |
| 447 | rc = qpnp_chg_read(chip, &boost_en_ctl, |
| 448 | chip->boost_base + BOOST_ENABLE_CONTROL, 1); |
| 449 | if (rc) { |
| 450 | pr_err("spmi read failed: addr=%03X, rc=%d\n", |
| 451 | chip->boost_base + BOOST_ENABLE_CONTROL, rc); |
| 452 | return rc; |
| 453 | } |
| 454 | |
| 455 | pr_debug("boost en 0x%x\n", boost_en_ctl); |
| 456 | |
| 457 | return (boost_en_ctl & BOOST_PWR_EN) ? 1 : 0; |
| 458 | } |
| 459 | |
| 460 | static int |
David Keitel | 42ae0aa | 2013-03-08 16:20:10 -0800 | [diff] [blame] | 461 | qpnp_chg_is_batt_present(struct qpnp_chg_chip *chip) |
| 462 | { |
| 463 | u8 batt_pres_rt_sts; |
| 464 | int rc; |
| 465 | |
| 466 | rc = qpnp_chg_read(chip, &batt_pres_rt_sts, |
| 467 | INT_RT_STS(chip->bat_if_base), 1); |
| 468 | if (rc) { |
| 469 | pr_err("spmi read failed: addr=%03X, rc=%d\n", |
| 470 | INT_RT_STS(chip->bat_if_base), rc); |
| 471 | return rc; |
| 472 | } |
| 473 | |
| 474 | return (batt_pres_rt_sts & BATT_PRES_IRQ) ? 1 : 0; |
| 475 | } |
| 476 | |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 477 | #define USB_VALID_BIT BIT(7) |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 478 | static int |
| 479 | qpnp_chg_is_usb_chg_plugged_in(struct qpnp_chg_chip *chip) |
| 480 | { |
| 481 | u8 usbin_valid_rt_sts; |
| 482 | int rc; |
| 483 | |
| 484 | rc = qpnp_chg_read(chip, &usbin_valid_rt_sts, |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 485 | chip->usb_chgpth_base + CHGR_STATUS , 1); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 486 | |
| 487 | if (rc) { |
| 488 | pr_err("spmi read failed: addr=%03X, rc=%d\n", |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 489 | chip->usb_chgpth_base + CHGR_STATUS, rc); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 490 | return rc; |
| 491 | } |
| 492 | pr_debug("chgr usb sts 0x%x\n", usbin_valid_rt_sts); |
| 493 | |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 494 | return (usbin_valid_rt_sts & USB_VALID_BIT) ? 1 : 0; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 495 | } |
| 496 | |
| 497 | static int |
| 498 | qpnp_chg_is_dc_chg_plugged_in(struct qpnp_chg_chip *chip) |
| 499 | { |
| 500 | u8 dcin_valid_rt_sts; |
| 501 | int rc; |
| 502 | |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 503 | if (!chip->dc_chgpth_base) |
| 504 | return 0; |
| 505 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 506 | rc = qpnp_chg_read(chip, &dcin_valid_rt_sts, |
| 507 | INT_RT_STS(chip->dc_chgpth_base), 1); |
| 508 | if (rc) { |
| 509 | pr_err("spmi read failed: addr=%03X, rc=%d\n", |
| 510 | INT_RT_STS(chip->dc_chgpth_base), rc); |
| 511 | return rc; |
| 512 | } |
| 513 | |
| 514 | return (dcin_valid_rt_sts & DCIN_VALID_IRQ) ? 1 : 0; |
| 515 | } |
| 516 | |
David Keitel | 22ed223 | 2013-01-28 11:04:07 -0800 | [diff] [blame] | 517 | #define QPNP_CHG_I_MAX_MIN_100 100 |
| 518 | #define QPNP_CHG_I_MAX_MIN_150 150 |
| 519 | #define QPNP_CHG_I_MAX_MIN_MA 200 |
| 520 | #define QPNP_CHG_I_MAX_MAX_MA 2500 |
| 521 | #define QPNP_CHG_I_MAXSTEP_MA 100 |
| 522 | static int |
| 523 | qpnp_chg_idcmax_set(struct qpnp_chg_chip *chip, int mA) |
| 524 | { |
| 525 | int rc = 0; |
| 526 | u8 dc = 0; |
| 527 | |
| 528 | if (mA < QPNP_CHG_I_MAX_MIN_100 |
| 529 | || mA > QPNP_CHG_I_MAX_MAX_MA) { |
| 530 | pr_err("bad mA=%d asked to set\n", mA); |
| 531 | return -EINVAL; |
| 532 | } |
| 533 | |
| 534 | if (mA == QPNP_CHG_I_MAX_MIN_100) { |
| 535 | dc = 0x00; |
| 536 | pr_debug("current=%d setting %02x\n", mA, dc); |
| 537 | return qpnp_chg_write(chip, &dc, |
| 538 | chip->dc_chgpth_base + CHGR_I_MAX_REG, 1); |
| 539 | } else if (mA == QPNP_CHG_I_MAX_MIN_150) { |
| 540 | dc = 0x01; |
| 541 | pr_debug("current=%d setting %02x\n", mA, dc); |
| 542 | return qpnp_chg_write(chip, &dc, |
| 543 | chip->dc_chgpth_base + CHGR_I_MAX_REG, 1); |
| 544 | } |
| 545 | |
| 546 | dc = mA / QPNP_CHG_I_MAXSTEP_MA; |
| 547 | |
| 548 | pr_debug("current=%d setting 0x%x\n", mA, dc); |
| 549 | rc = qpnp_chg_write(chip, &dc, |
| 550 | chip->dc_chgpth_base + CHGR_I_MAX_REG, 1); |
| 551 | |
| 552 | return rc; |
| 553 | } |
| 554 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 555 | static int |
| 556 | qpnp_chg_iusbmax_set(struct qpnp_chg_chip *chip, int mA) |
| 557 | { |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 558 | int rc = 0; |
| 559 | u8 usb_reg = 0, temp = 8; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 560 | |
David Keitel | 22ed223 | 2013-01-28 11:04:07 -0800 | [diff] [blame] | 561 | if (mA < QPNP_CHG_I_MAX_MIN_100 |
| 562 | || mA > QPNP_CHG_I_MAX_MAX_MA) { |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 563 | pr_err("bad mA=%d asked to set\n", mA); |
| 564 | return -EINVAL; |
| 565 | } |
| 566 | |
David Keitel | 22ed223 | 2013-01-28 11:04:07 -0800 | [diff] [blame] | 567 | if (mA == QPNP_CHG_I_MAX_MIN_100) { |
| 568 | usb_reg = 0x00; |
| 569 | pr_debug("current=%d setting %02x\n", mA, usb_reg); |
| 570 | return qpnp_chg_write(chip, &usb_reg, |
| 571 | chip->usb_chgpth_base + CHGR_I_MAX_REG, 1); |
| 572 | } else if (mA == QPNP_CHG_I_MAX_MIN_150) { |
| 573 | usb_reg = 0x01; |
| 574 | pr_debug("current=%d setting %02x\n", mA, usb_reg); |
| 575 | return qpnp_chg_write(chip, &usb_reg, |
| 576 | chip->usb_chgpth_base + CHGR_I_MAX_REG, 1); |
| 577 | } |
| 578 | |
| 579 | /* Impose input current limit */ |
| 580 | if (chip->maxinput_usb_ma) |
| 581 | mA = (chip->maxinput_usb_ma) <= mA ? chip->maxinput_usb_ma : mA; |
| 582 | |
| 583 | usb_reg = mA / QPNP_CHG_I_MAXSTEP_MA; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 584 | |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 585 | if (chip->flags & CHG_FLAGS_VCP_WA) { |
| 586 | temp = 0xA5; |
| 587 | rc = qpnp_chg_write(chip, &temp, |
| 588 | chip->buck_base + SEC_ACCESS, 1); |
| 589 | rc = qpnp_chg_masked_write(chip, |
| 590 | chip->buck_base + CHGR_BUCK_COMPARATOR_OVRIDE_3, |
| 591 | 0x0C, 0x0C, 1); |
| 592 | } |
| 593 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 594 | pr_debug("current=%d setting 0x%x\n", mA, usb_reg); |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 595 | rc = qpnp_chg_write(chip, &usb_reg, |
David Keitel | 22ed223 | 2013-01-28 11:04:07 -0800 | [diff] [blame] | 596 | chip->usb_chgpth_base + CHGR_I_MAX_REG, 1); |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 597 | |
| 598 | if (chip->flags & CHG_FLAGS_VCP_WA) { |
| 599 | temp = 0xA5; |
| 600 | udelay(200); |
| 601 | rc = qpnp_chg_write(chip, &temp, |
| 602 | chip->buck_base + SEC_ACCESS, 1); |
| 603 | rc = qpnp_chg_masked_write(chip, |
| 604 | chip->buck_base + CHGR_BUCK_COMPARATOR_OVRIDE_3, |
| 605 | 0x0C, 0x00, 1); |
| 606 | } |
| 607 | |
| 608 | return rc; |
| 609 | } |
| 610 | |
| 611 | #define USB_SUSPEND_BIT BIT(0) |
| 612 | static int |
| 613 | qpnp_chg_usb_suspend_enable(struct qpnp_chg_chip *chip, int enable) |
| 614 | { |
| 615 | return qpnp_chg_masked_write(chip, |
| 616 | chip->usb_chgpth_base + CHGR_USB_USB_SUSP, |
| 617 | USB_SUSPEND_BIT, |
| 618 | enable ? USB_SUSPEND_BIT : 0, 1); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 619 | } |
| 620 | |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 621 | static int |
| 622 | qpnp_chg_charge_en(struct qpnp_chg_chip *chip, int enable) |
| 623 | { |
| 624 | return qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_CHG_CTRL, |
| 625 | CHGR_CHG_EN, |
| 626 | enable ? CHGR_CHG_EN : 0, 1); |
| 627 | } |
| 628 | |
| 629 | static int |
| 630 | qpnp_chg_force_run_on_batt(struct qpnp_chg_chip *chip, int disable) |
| 631 | { |
| 632 | /* Don't run on battery for batteryless hardware */ |
| 633 | if (chip->use_default_batt_values) |
| 634 | return 0; |
David Keitel | 4d66ea0 | 2013-04-30 10:57:58 -0700 | [diff] [blame] | 635 | /* Don't force on battery if battery is not present */ |
| 636 | if (!qpnp_chg_is_batt_present(chip)) |
| 637 | return 0; |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 638 | |
| 639 | /* This bit forces the charger to run off of the battery rather |
| 640 | * than a connected charger */ |
| 641 | return qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_CHG_CTRL, |
| 642 | CHGR_ON_BAT_FORCE_BIT, |
| 643 | disable ? CHGR_ON_BAT_FORCE_BIT : 0, 1); |
| 644 | } |
| 645 | |
David Keitel | 8b68d2d | 2013-05-14 23:36:51 -0700 | [diff] [blame] | 646 | #define BUCK_DUTY_MASK_100P 0x30 |
| 647 | static int |
| 648 | qpnp_buck_set_100_duty_cycle_enable(struct qpnp_chg_chip *chip, int enable) |
| 649 | { |
| 650 | int rc; |
| 651 | |
| 652 | pr_debug("enable: %d\n", enable); |
| 653 | |
| 654 | rc = qpnp_chg_masked_write(chip, |
| 655 | chip->buck_base + SEC_ACCESS, 0xA5, 0xA5, 1); |
| 656 | if (rc) { |
| 657 | pr_debug("failed to write sec access rc=%d\n", rc); |
| 658 | return rc; |
| 659 | } |
| 660 | |
| 661 | rc = qpnp_chg_masked_write(chip, |
| 662 | chip->buck_base + BUCK_TEST_SMBC_MODES, |
| 663 | BUCK_DUTY_MASK_100P, enable ? 0x00 : 0x10, 1); |
| 664 | if (rc) { |
| 665 | pr_debug("failed enable 100p duty cycle rc=%d\n", rc); |
| 666 | return rc; |
| 667 | } |
| 668 | |
| 669 | return rc; |
| 670 | } |
| 671 | |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 672 | #define COMPATATOR_OVERRIDE_0 0x80 |
| 673 | static int |
| 674 | qpnp_chg_toggle_chg_done_logic(struct qpnp_chg_chip *chip, int enable) |
| 675 | { |
| 676 | int rc; |
| 677 | |
| 678 | pr_debug("toggle: %d\n", enable); |
| 679 | |
| 680 | rc = qpnp_chg_masked_write(chip, |
| 681 | chip->buck_base + SEC_ACCESS, 0xA5, 0xA5, 1); |
| 682 | if (rc) { |
| 683 | pr_debug("failed to write sec access rc=%d\n", rc); |
| 684 | return rc; |
| 685 | } |
| 686 | |
| 687 | rc = qpnp_chg_masked_write(chip, |
| 688 | chip->buck_base + CHGR_BUCK_COMPARATOR_OVRIDE_1, |
| 689 | 0xC0, enable ? 0x00 : COMPATATOR_OVERRIDE_0, 1); |
| 690 | if (rc) { |
| 691 | pr_debug("failed to toggle chg done override rc=%d\n", rc); |
| 692 | return rc; |
| 693 | } |
| 694 | |
| 695 | return rc; |
| 696 | } |
| 697 | |
| 698 | #define QPNP_CHG_VBATDET_MIN_MV 3240 |
| 699 | #define QPNP_CHG_VBATDET_MAX_MV 5780 |
| 700 | #define QPNP_CHG_VBATDET_STEP_MV 20 |
| 701 | static int |
| 702 | qpnp_chg_vbatdet_set(struct qpnp_chg_chip *chip, int vbatdet_mv) |
| 703 | { |
| 704 | u8 temp; |
| 705 | |
| 706 | if (vbatdet_mv < QPNP_CHG_VBATDET_MIN_MV |
| 707 | || vbatdet_mv > QPNP_CHG_VBATDET_MAX_MV) { |
| 708 | pr_err("bad mV=%d asked to set\n", vbatdet_mv); |
| 709 | return -EINVAL; |
| 710 | } |
| 711 | temp = (vbatdet_mv - QPNP_CHG_VBATDET_MIN_MV) |
| 712 | / QPNP_CHG_VBATDET_STEP_MV; |
| 713 | |
| 714 | pr_debug("voltage=%d setting %02x\n", vbatdet_mv, temp); |
| 715 | return qpnp_chg_write(chip, &temp, |
| 716 | chip->chgr_base + CHGR_VBAT_DET, 1); |
| 717 | } |
| 718 | |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 719 | static void |
| 720 | qpnp_arb_stop_work(struct work_struct *work) |
| 721 | { |
| 722 | struct delayed_work *dwork = to_delayed_work(work); |
| 723 | struct qpnp_chg_chip *chip = container_of(dwork, |
| 724 | struct qpnp_chg_chip, arb_stop_work); |
| 725 | |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 726 | if (!chip->chg_done) |
| 727 | qpnp_chg_charge_en(chip, !chip->charging_disabled); |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 728 | qpnp_chg_force_run_on_batt(chip, chip->charging_disabled); |
| 729 | } |
| 730 | |
| 731 | static void |
| 732 | qpnp_bat_if_adc_measure_work(struct work_struct *work) |
David Keitel | 79f4c93 | 2013-04-03 16:08:39 -0700 | [diff] [blame] | 733 | { |
| 734 | struct qpnp_chg_chip *chip = container_of(work, |
| 735 | struct qpnp_chg_chip, adc_measure_work); |
| 736 | |
| 737 | if (qpnp_adc_tm_channel_measure(&chip->adc_param)) |
| 738 | pr_err("request ADC error\n"); |
| 739 | } |
| 740 | |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 741 | #define EOC_CHECK_PERIOD_MS 10000 |
| 742 | static irqreturn_t |
| 743 | qpnp_chg_vbatdet_lo_irq_handler(int irq, void *_chip) |
| 744 | { |
| 745 | struct qpnp_chg_chip *chip = _chip; |
| 746 | u8 chg_sts = 0; |
| 747 | int rc; |
| 748 | |
| 749 | pr_debug("vbatdet-lo triggered\n"); |
| 750 | |
| 751 | rc = qpnp_chg_read(chip, &chg_sts, INT_RT_STS(chip->chgr_base), 1); |
| 752 | if (rc) |
| 753 | pr_err("failed to read chg_sts rc=%d\n", rc); |
| 754 | |
| 755 | pr_debug("chg_done chg_sts: 0x%x triggered\n", chg_sts); |
| 756 | if (!chip->charging_disabled && (chg_sts & FAST_CHG_ON_IRQ)) { |
| 757 | schedule_delayed_work(&chip->eoc_work, |
| 758 | msecs_to_jiffies(EOC_CHECK_PERIOD_MS)); |
| 759 | wake_lock(&chip->eoc_wake_lock); |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 760 | qpnp_chg_disable_irq(&chip->chg_vbatdet_lo); |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 761 | } else { |
| 762 | qpnp_chg_charge_en(chip, !chip->charging_disabled); |
| 763 | } |
| 764 | |
| 765 | power_supply_changed(chip->usb_psy); |
David Keitel | dbcef09 | 2013-05-14 14:48:30 -0700 | [diff] [blame] | 766 | if (chip->dc_chgpth_base) |
| 767 | power_supply_changed(&chip->dc_psy); |
| 768 | if (chip->bat_if_base) |
| 769 | power_supply_changed(&chip->batt_psy); |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 770 | return IRQ_HANDLED; |
| 771 | } |
| 772 | |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 773 | #define ARB_STOP_WORK_MS 1000 |
| 774 | static irqreturn_t |
| 775 | qpnp_chg_usb_chg_gone_irq_handler(int irq, void *_chip) |
| 776 | { |
| 777 | struct qpnp_chg_chip *chip = _chip; |
| 778 | |
| 779 | pr_debug("chg_gone triggered\n"); |
| 780 | if (qpnp_chg_is_usb_chg_plugged_in(chip)) { |
| 781 | qpnp_chg_charge_en(chip, 0); |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 782 | qpnp_chg_force_run_on_batt(chip, 1); |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 783 | schedule_delayed_work(&chip->arb_stop_work, |
| 784 | msecs_to_jiffies(ARB_STOP_WORK_MS)); |
| 785 | } |
| 786 | |
| 787 | return IRQ_HANDLED; |
| 788 | } |
| 789 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 790 | #define ENUM_T_STOP_BIT BIT(0) |
| 791 | static irqreturn_t |
| 792 | qpnp_chg_usb_usbin_valid_irq_handler(int irq, void *_chip) |
| 793 | { |
| 794 | struct qpnp_chg_chip *chip = _chip; |
David Keitel | 6f865cd | 2012-11-30 15:04:32 -0800 | [diff] [blame] | 795 | int usb_present, host_mode; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 796 | |
| 797 | usb_present = qpnp_chg_is_usb_chg_plugged_in(chip); |
David Keitel | 6f865cd | 2012-11-30 15:04:32 -0800 | [diff] [blame] | 798 | host_mode = qpnp_chg_is_otg_en_set(chip); |
| 799 | pr_debug("usbin-valid triggered: %d host_mode: %d\n", |
| 800 | usb_present, host_mode); |
| 801 | |
| 802 | /* In host mode notifications cmoe from USB supply */ |
| 803 | if (host_mode) |
| 804 | return IRQ_HANDLED; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 805 | |
| 806 | if (chip->usb_present ^ usb_present) { |
| 807 | chip->usb_present = usb_present; |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 808 | if (!usb_present) { |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 809 | qpnp_chg_usb_suspend_enable(chip, 1); |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 810 | chip->chg_done = false; |
| 811 | } else { |
| 812 | schedule_delayed_work(&chip->eoc_work, |
| 813 | msecs_to_jiffies(EOC_CHECK_PERIOD_MS)); |
| 814 | } |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 815 | |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 816 | power_supply_set_present(chip->usb_psy, chip->usb_present); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 817 | } |
| 818 | |
| 819 | return IRQ_HANDLED; |
| 820 | } |
| 821 | |
David Keitel | 7450dcd | 2013-01-29 18:41:41 -0800 | [diff] [blame] | 822 | static irqreturn_t |
David Keitel | 42ae0aa | 2013-03-08 16:20:10 -0800 | [diff] [blame] | 823 | qpnp_chg_bat_if_batt_pres_irq_handler(int irq, void *_chip) |
| 824 | { |
| 825 | struct qpnp_chg_chip *chip = _chip; |
| 826 | int batt_present; |
| 827 | |
| 828 | batt_present = qpnp_chg_is_batt_present(chip); |
| 829 | pr_debug("batt-pres triggered: %d\n", batt_present); |
| 830 | |
| 831 | if (chip->batt_present ^ batt_present) { |
| 832 | chip->batt_present = batt_present; |
| 833 | power_supply_changed(&chip->batt_psy); |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 834 | power_supply_changed(chip->usb_psy); |
David Keitel | 0c1a453 | 2013-03-21 16:39:06 -0700 | [diff] [blame] | 835 | |
| 836 | if (chip->cool_bat_decidegc && chip->warm_bat_decidegc |
| 837 | && batt_present) { |
David Keitel | 79f4c93 | 2013-04-03 16:08:39 -0700 | [diff] [blame] | 838 | schedule_work(&chip->adc_measure_work); |
David Keitel | 0c1a453 | 2013-03-21 16:39:06 -0700 | [diff] [blame] | 839 | } |
David Keitel | 42ae0aa | 2013-03-08 16:20:10 -0800 | [diff] [blame] | 840 | } |
| 841 | |
| 842 | return IRQ_HANDLED; |
| 843 | } |
| 844 | |
| 845 | static irqreturn_t |
David Keitel | 7450dcd | 2013-01-29 18:41:41 -0800 | [diff] [blame] | 846 | qpnp_chg_dc_dcin_valid_irq_handler(int irq, void *_chip) |
| 847 | { |
| 848 | struct qpnp_chg_chip *chip = _chip; |
| 849 | int dc_present; |
| 850 | |
| 851 | dc_present = qpnp_chg_is_dc_chg_plugged_in(chip); |
| 852 | pr_debug("dcin-valid triggered: %d\n", dc_present); |
| 853 | |
| 854 | if (chip->dc_present ^ dc_present) { |
| 855 | chip->dc_present = dc_present; |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 856 | if (!dc_present) |
| 857 | chip->chg_done = false; |
| 858 | else |
| 859 | schedule_delayed_work(&chip->eoc_work, |
| 860 | msecs_to_jiffies(EOC_CHECK_PERIOD_MS)); |
David Keitel | 7450dcd | 2013-01-29 18:41:41 -0800 | [diff] [blame] | 861 | power_supply_changed(&chip->dc_psy); |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 862 | power_supply_changed(&chip->batt_psy); |
David Keitel | 7450dcd | 2013-01-29 18:41:41 -0800 | [diff] [blame] | 863 | } |
| 864 | |
| 865 | return IRQ_HANDLED; |
| 866 | } |
| 867 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 868 | #define CHGR_CHG_FAILED_BIT BIT(7) |
| 869 | static irqreturn_t |
| 870 | qpnp_chg_chgr_chg_failed_irq_handler(int irq, void *_chip) |
| 871 | { |
| 872 | struct qpnp_chg_chip *chip = _chip; |
David Keitel | 4429b1f | 2012-10-18 10:42:50 -0700 | [diff] [blame] | 873 | int rc; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 874 | |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 875 | pr_debug("chg_failed triggered\n"); |
| 876 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 877 | rc = qpnp_chg_masked_write(chip, |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 878 | chip->chgr_base + CHGR_CHG_FAILED, |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 879 | CHGR_CHG_FAILED_BIT, |
| 880 | CHGR_CHG_FAILED_BIT, 1); |
| 881 | if (rc) |
| 882 | pr_err("Failed to write chg_fail clear bit!\n"); |
| 883 | |
David Keitel | dbcef09 | 2013-05-14 14:48:30 -0700 | [diff] [blame] | 884 | if (chip->bat_if_base) |
| 885 | power_supply_changed(&chip->batt_psy); |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 886 | power_supply_changed(chip->usb_psy); |
David Keitel | dbcef09 | 2013-05-14 14:48:30 -0700 | [diff] [blame] | 887 | if (chip->dc_chgpth_base) |
| 888 | power_supply_changed(&chip->dc_psy); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 889 | return IRQ_HANDLED; |
| 890 | } |
| 891 | |
| 892 | static irqreturn_t |
David Keitel | 42ae0aa | 2013-03-08 16:20:10 -0800 | [diff] [blame] | 893 | qpnp_chg_chgr_chg_trklchg_irq_handler(int irq, void *_chip) |
| 894 | { |
| 895 | struct qpnp_chg_chip *chip = _chip; |
| 896 | |
| 897 | pr_debug("TRKL IRQ triggered\n"); |
David Keitel | c9ffe84 | 2013-01-25 19:37:51 -0800 | [diff] [blame] | 898 | |
| 899 | chip->chg_done = false; |
David Keitel | dbcef09 | 2013-05-14 14:48:30 -0700 | [diff] [blame] | 900 | if (chip->bat_if_base) |
| 901 | power_supply_changed(&chip->batt_psy); |
David Keitel | 42ae0aa | 2013-03-08 16:20:10 -0800 | [diff] [blame] | 902 | |
| 903 | return IRQ_HANDLED; |
| 904 | } |
| 905 | |
| 906 | static irqreturn_t |
| 907 | qpnp_chg_chgr_chg_fastchg_irq_handler(int irq, void *_chip) |
| 908 | { |
| 909 | struct qpnp_chg_chip *chip = _chip; |
| 910 | |
| 911 | pr_debug("FAST_CHG IRQ triggered\n"); |
David Keitel | c9ffe84 | 2013-01-25 19:37:51 -0800 | [diff] [blame] | 912 | chip->chg_done = false; |
David Keitel | dbcef09 | 2013-05-14 14:48:30 -0700 | [diff] [blame] | 913 | if (chip->bat_if_base) |
| 914 | power_supply_changed(&chip->batt_psy); |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 915 | power_supply_changed(chip->usb_psy); |
David Keitel | dbcef09 | 2013-05-14 14:48:30 -0700 | [diff] [blame] | 916 | if (chip->dc_chgpth_base) |
| 917 | power_supply_changed(&chip->dc_psy); |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 918 | qpnp_chg_enable_irq(&chip->chg_vbatdet_lo); |
David Keitel | 42ae0aa | 2013-03-08 16:20:10 -0800 | [diff] [blame] | 919 | |
| 920 | return IRQ_HANDLED; |
| 921 | } |
| 922 | |
David Keitel | 03ee6b5 | 2012-10-22 12:25:19 -0700 | [diff] [blame] | 923 | static int |
| 924 | qpnp_batt_property_is_writeable(struct power_supply *psy, |
| 925 | enum power_supply_property psp) |
| 926 | { |
| 927 | switch (psp) { |
| 928 | case POWER_SUPPLY_PROP_CHARGING_ENABLED: |
David Keitel | be20825 | 2013-01-31 14:49:25 -0800 | [diff] [blame] | 929 | case POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL: |
David Keitel | 03ee6b5 | 2012-10-22 12:25:19 -0700 | [diff] [blame] | 930 | return 1; |
| 931 | default: |
| 932 | break; |
| 933 | } |
| 934 | |
| 935 | return 0; |
| 936 | } |
| 937 | |
David Keitel | 6f865cd | 2012-11-30 15:04:32 -0800 | [diff] [blame] | 938 | static int |
David Keitel | be20825 | 2013-01-31 14:49:25 -0800 | [diff] [blame] | 939 | qpnp_chg_buck_control(struct qpnp_chg_chip *chip, int enable) |
| 940 | { |
| 941 | int rc; |
| 942 | |
| 943 | if (chip->charging_disabled && enable) { |
| 944 | pr_debug("Charging disabled\n"); |
| 945 | return 0; |
| 946 | } |
| 947 | |
| 948 | rc = qpnp_chg_charge_en(chip, enable); |
| 949 | if (rc) { |
| 950 | pr_err("Failed to control charging %d\n", rc); |
| 951 | return rc; |
| 952 | } |
| 953 | |
| 954 | rc = qpnp_chg_force_run_on_batt(chip, !enable); |
| 955 | if (rc) |
| 956 | pr_err("Failed to control charging %d\n", rc); |
| 957 | |
| 958 | return rc; |
| 959 | } |
| 960 | |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 961 | static int |
| 962 | switch_usb_to_charge_mode(struct qpnp_chg_chip *chip) |
David Keitel | 6f865cd | 2012-11-30 15:04:32 -0800 | [diff] [blame] | 963 | { |
| 964 | int rc; |
| 965 | |
| 966 | pr_debug("switch to charge mode\n"); |
| 967 | if (!qpnp_chg_is_otg_en_set(chip)) |
| 968 | return 0; |
| 969 | |
| 970 | /* enable usb ovp fet */ |
| 971 | rc = qpnp_chg_masked_write(chip, |
| 972 | chip->usb_chgpth_base + CHGR_USB_USB_OTG_CTL, |
| 973 | USB_OTG_EN_BIT, |
| 974 | 0, 1); |
| 975 | if (rc) { |
| 976 | pr_err("Failed to turn on usb ovp rc = %d\n", rc); |
| 977 | return rc; |
| 978 | } |
| 979 | |
| 980 | rc = qpnp_chg_force_run_on_batt(chip, chip->charging_disabled); |
| 981 | if (rc) { |
| 982 | pr_err("Failed re-enable charging rc = %d\n", rc); |
| 983 | return rc; |
| 984 | } |
| 985 | |
| 986 | return 0; |
| 987 | } |
| 988 | |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 989 | static int |
| 990 | switch_usb_to_host_mode(struct qpnp_chg_chip *chip) |
David Keitel | 6f865cd | 2012-11-30 15:04:32 -0800 | [diff] [blame] | 991 | { |
| 992 | int rc; |
| 993 | |
| 994 | pr_debug("switch to host mode\n"); |
| 995 | if (qpnp_chg_is_otg_en_set(chip)) |
| 996 | return 0; |
| 997 | |
| 998 | rc = qpnp_chg_force_run_on_batt(chip, 1); |
| 999 | if (rc) { |
| 1000 | pr_err("Failed to disable charging rc = %d\n", rc); |
| 1001 | return rc; |
| 1002 | } |
| 1003 | |
| 1004 | /* force usb ovp fet off */ |
| 1005 | rc = qpnp_chg_masked_write(chip, |
| 1006 | chip->usb_chgpth_base + CHGR_USB_USB_OTG_CTL, |
| 1007 | USB_OTG_EN_BIT, |
| 1008 | USB_OTG_EN_BIT, 1); |
| 1009 | if (rc) { |
| 1010 | pr_err("Failed to turn off usb ovp rc = %d\n", rc); |
| 1011 | return rc; |
| 1012 | } |
| 1013 | |
| 1014 | return 0; |
| 1015 | } |
| 1016 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1017 | static enum power_supply_property pm_power_props_mains[] = { |
| 1018 | POWER_SUPPLY_PROP_PRESENT, |
| 1019 | POWER_SUPPLY_PROP_ONLINE, |
| 1020 | }; |
| 1021 | |
| 1022 | static enum power_supply_property msm_batt_power_props[] = { |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 1023 | POWER_SUPPLY_PROP_CHARGING_ENABLED, |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1024 | POWER_SUPPLY_PROP_STATUS, |
| 1025 | POWER_SUPPLY_PROP_CHARGE_TYPE, |
| 1026 | POWER_SUPPLY_PROP_HEALTH, |
| 1027 | POWER_SUPPLY_PROP_PRESENT, |
| 1028 | POWER_SUPPLY_PROP_TECHNOLOGY, |
| 1029 | POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, |
| 1030 | POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, |
| 1031 | POWER_SUPPLY_PROP_VOLTAGE_NOW, |
| 1032 | POWER_SUPPLY_PROP_CAPACITY, |
| 1033 | POWER_SUPPLY_PROP_CURRENT_NOW, |
| 1034 | POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, |
| 1035 | POWER_SUPPLY_PROP_TEMP, |
David Keitel | be20825 | 2013-01-31 14:49:25 -0800 | [diff] [blame] | 1036 | POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL, |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1037 | }; |
| 1038 | |
| 1039 | static char *pm_power_supplied_to[] = { |
| 1040 | "battery", |
| 1041 | }; |
| 1042 | |
Xiaozhe Shi | 890fbf4 | 2013-05-02 16:42:53 -0700 | [diff] [blame] | 1043 | static char *pm_batt_supplied_to[] = { |
| 1044 | "bms", |
| 1045 | }; |
| 1046 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1047 | #define USB_WALL_THRESHOLD_MA 500 |
| 1048 | static int |
| 1049 | qpnp_power_get_property_mains(struct power_supply *psy, |
| 1050 | enum power_supply_property psp, |
| 1051 | union power_supply_propval *val) |
| 1052 | { |
| 1053 | struct qpnp_chg_chip *chip = container_of(psy, struct qpnp_chg_chip, |
| 1054 | dc_psy); |
| 1055 | |
| 1056 | switch (psp) { |
| 1057 | case POWER_SUPPLY_PROP_PRESENT: |
| 1058 | case POWER_SUPPLY_PROP_ONLINE: |
| 1059 | val->intval = 0; |
David Keitel | 03ee6b5 | 2012-10-22 12:25:19 -0700 | [diff] [blame] | 1060 | if (chip->charging_disabled) |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1061 | return 0; |
| 1062 | |
| 1063 | val->intval = qpnp_chg_is_dc_chg_plugged_in(chip); |
| 1064 | break; |
| 1065 | default: |
| 1066 | return -EINVAL; |
| 1067 | } |
| 1068 | return 0; |
| 1069 | } |
| 1070 | |
| 1071 | static int |
| 1072 | get_prop_battery_voltage_now(struct qpnp_chg_chip *chip) |
| 1073 | { |
| 1074 | int rc = 0; |
| 1075 | struct qpnp_vadc_result results; |
| 1076 | |
David Keitel | fe51cb9 | 2013-04-02 19:42:58 -0700 | [diff] [blame] | 1077 | if (chip->revision == 0 && chip->type == SMBB) { |
| 1078 | pr_err("vbat reading not supported for 1.0 rc=%d\n", rc); |
| 1079 | return 0; |
| 1080 | } else { |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1081 | rc = qpnp_vadc_read(VBAT_SNS, &results); |
| 1082 | if (rc) { |
| 1083 | pr_err("Unable to read vbat rc=%d\n", rc); |
| 1084 | return 0; |
| 1085 | } |
| 1086 | return results.physical; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1087 | } |
| 1088 | } |
| 1089 | |
| 1090 | #define BATT_PRES_BIT BIT(7) |
| 1091 | static int |
| 1092 | get_prop_batt_present(struct qpnp_chg_chip *chip) |
| 1093 | { |
| 1094 | u8 batt_present; |
| 1095 | int rc; |
| 1096 | |
| 1097 | rc = qpnp_chg_read(chip, &batt_present, |
| 1098 | chip->bat_if_base + CHGR_BAT_IF_PRES_STATUS, 1); |
| 1099 | if (rc) { |
| 1100 | pr_err("Couldn't read battery status read failed rc=%d\n", rc); |
| 1101 | return 0; |
| 1102 | }; |
| 1103 | return (batt_present & BATT_PRES_BIT) ? 1 : 0; |
| 1104 | } |
| 1105 | |
| 1106 | #define BATT_TEMP_HOT BIT(6) |
| 1107 | #define BATT_TEMP_OK BIT(7) |
| 1108 | static int |
| 1109 | get_prop_batt_health(struct qpnp_chg_chip *chip) |
| 1110 | { |
| 1111 | u8 batt_health; |
| 1112 | int rc; |
| 1113 | |
| 1114 | rc = qpnp_chg_read(chip, &batt_health, |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 1115 | chip->bat_if_base + CHGR_STATUS, 1); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1116 | if (rc) { |
| 1117 | pr_err("Couldn't read battery health read failed rc=%d\n", rc); |
| 1118 | return POWER_SUPPLY_HEALTH_UNKNOWN; |
| 1119 | }; |
| 1120 | |
| 1121 | if (BATT_TEMP_OK & batt_health) |
| 1122 | return POWER_SUPPLY_HEALTH_GOOD; |
| 1123 | if (BATT_TEMP_HOT & batt_health) |
| 1124 | return POWER_SUPPLY_HEALTH_OVERHEAT; |
| 1125 | else |
| 1126 | return POWER_SUPPLY_HEALTH_COLD; |
| 1127 | } |
| 1128 | |
| 1129 | static int |
| 1130 | get_prop_charge_type(struct qpnp_chg_chip *chip) |
| 1131 | { |
| 1132 | int rc; |
| 1133 | u8 chgr_sts; |
| 1134 | |
| 1135 | if (!get_prop_batt_present(chip)) |
| 1136 | return POWER_SUPPLY_CHARGE_TYPE_NONE; |
| 1137 | |
| 1138 | rc = qpnp_chg_read(chip, &chgr_sts, |
| 1139 | INT_RT_STS(chip->chgr_base), 1); |
| 1140 | if (rc) { |
| 1141 | pr_err("failed to read interrupt sts %d\n", rc); |
| 1142 | return POWER_SUPPLY_CHARGE_TYPE_NONE; |
| 1143 | } |
| 1144 | |
| 1145 | if (chgr_sts & TRKL_CHG_ON_IRQ) |
| 1146 | return POWER_SUPPLY_CHARGE_TYPE_TRICKLE; |
| 1147 | if (chgr_sts & FAST_CHG_ON_IRQ) |
| 1148 | return POWER_SUPPLY_CHARGE_TYPE_FAST; |
| 1149 | |
| 1150 | return POWER_SUPPLY_CHARGE_TYPE_NONE; |
| 1151 | } |
| 1152 | |
| 1153 | static int |
| 1154 | get_prop_batt_status(struct qpnp_chg_chip *chip) |
| 1155 | { |
| 1156 | int rc; |
| 1157 | u8 chgr_sts; |
| 1158 | |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 1159 | if ((qpnp_chg_is_usb_chg_plugged_in(chip) || |
| 1160 | qpnp_chg_is_dc_chg_plugged_in(chip)) && chip->chg_done) { |
David Keitel | c9ffe84 | 2013-01-25 19:37:51 -0800 | [diff] [blame] | 1161 | return POWER_SUPPLY_STATUS_FULL; |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 1162 | } |
David Keitel | c9ffe84 | 2013-01-25 19:37:51 -0800 | [diff] [blame] | 1163 | |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 1164 | rc = qpnp_chg_read(chip, &chgr_sts, INT_RT_STS(chip->chgr_base), 1); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1165 | if (rc) { |
| 1166 | pr_err("failed to read interrupt sts %d\n", rc); |
David Keitel | c9ffe84 | 2013-01-25 19:37:51 -0800 | [diff] [blame] | 1167 | return POWER_SUPPLY_CHARGE_TYPE_NONE; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1168 | } |
| 1169 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1170 | if (chgr_sts & TRKL_CHG_ON_IRQ) |
| 1171 | return POWER_SUPPLY_STATUS_CHARGING; |
| 1172 | if (chgr_sts & FAST_CHG_ON_IRQ) |
| 1173 | return POWER_SUPPLY_STATUS_CHARGING; |
| 1174 | |
| 1175 | return POWER_SUPPLY_STATUS_DISCHARGING; |
| 1176 | } |
| 1177 | |
| 1178 | static int |
| 1179 | get_prop_current_now(struct qpnp_chg_chip *chip) |
| 1180 | { |
| 1181 | union power_supply_propval ret = {0,}; |
| 1182 | |
| 1183 | if (chip->bms_psy) { |
| 1184 | chip->bms_psy->get_property(chip->bms_psy, |
| 1185 | POWER_SUPPLY_PROP_CURRENT_NOW, &ret); |
| 1186 | return ret.intval; |
| 1187 | } else { |
| 1188 | pr_debug("No BMS supply registered return 0\n"); |
| 1189 | } |
| 1190 | |
| 1191 | return 0; |
| 1192 | } |
| 1193 | |
| 1194 | static int |
| 1195 | get_prop_full_design(struct qpnp_chg_chip *chip) |
| 1196 | { |
| 1197 | union power_supply_propval ret = {0,}; |
| 1198 | |
| 1199 | if (chip->bms_psy) { |
| 1200 | chip->bms_psy->get_property(chip->bms_psy, |
| 1201 | POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, &ret); |
| 1202 | return ret.intval; |
| 1203 | } else { |
| 1204 | pr_debug("No BMS supply registered return 0\n"); |
| 1205 | } |
| 1206 | |
| 1207 | return 0; |
| 1208 | } |
| 1209 | |
| 1210 | #define DEFAULT_CAPACITY 50 |
| 1211 | static int |
| 1212 | get_prop_capacity(struct qpnp_chg_chip *chip) |
| 1213 | { |
| 1214 | union power_supply_propval ret = {0,}; |
| 1215 | |
David Keitel | 3dd5e0f | 2012-12-12 18:12:36 -0800 | [diff] [blame] | 1216 | if (chip->use_default_batt_values || !get_prop_batt_present(chip)) |
| 1217 | return DEFAULT_CAPACITY; |
| 1218 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1219 | if (chip->bms_psy) { |
| 1220 | chip->bms_psy->get_property(chip->bms_psy, |
| 1221 | POWER_SUPPLY_PROP_CAPACITY, &ret); |
Abhijeet Dharmapurikar | 53ce35a | 2013-03-29 16:14:16 -0700 | [diff] [blame] | 1222 | if (ret.intval == 0) { |
David Keitel | eeca08f | 2013-05-17 16:40:46 -0700 | [diff] [blame] | 1223 | if (!qpnp_chg_is_usb_chg_plugged_in(chip) |
| 1224 | && !qpnp_chg_is_usb_chg_plugged_in(chip)) |
Abhijeet Dharmapurikar | 53ce35a | 2013-03-29 16:14:16 -0700 | [diff] [blame] | 1225 | pr_warn_ratelimited("Battery 0, CHG absent\n"); |
| 1226 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1227 | return ret.intval; |
| 1228 | } else { |
| 1229 | pr_debug("No BMS supply registered return 50\n"); |
| 1230 | } |
| 1231 | |
| 1232 | /* return default capacity to avoid userspace |
| 1233 | * from shutting down unecessarily */ |
| 1234 | return DEFAULT_CAPACITY; |
| 1235 | } |
| 1236 | |
David Keitel | 3dd5e0f | 2012-12-12 18:12:36 -0800 | [diff] [blame] | 1237 | #define DEFAULT_TEMP 250 |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1238 | #define MAX_TOLERABLE_BATT_TEMP_DDC 680 |
| 1239 | static int |
| 1240 | get_prop_batt_temp(struct qpnp_chg_chip *chip) |
| 1241 | { |
| 1242 | int rc = 0; |
| 1243 | struct qpnp_vadc_result results; |
| 1244 | |
David Keitel | 3dd5e0f | 2012-12-12 18:12:36 -0800 | [diff] [blame] | 1245 | if (chip->use_default_batt_values || !get_prop_batt_present(chip)) |
| 1246 | return DEFAULT_TEMP; |
| 1247 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1248 | if (chip->revision > 0) { |
| 1249 | rc = qpnp_vadc_read(LR_MUX1_BATT_THERM, &results); |
| 1250 | if (rc) { |
| 1251 | pr_debug("Unable to read batt temperature rc=%d\n", rc); |
| 1252 | return 0; |
| 1253 | } |
| 1254 | pr_debug("get_bat_temp %d %lld\n", |
| 1255 | results.adc_code, results.physical); |
| 1256 | return (int)results.physical; |
| 1257 | } else { |
| 1258 | pr_debug("batt temp not supported for PMIC 1.0 rc=%d\n", rc); |
| 1259 | } |
| 1260 | |
| 1261 | /* return default temperature to avoid userspace |
| 1262 | * from shutting down unecessarily */ |
| 1263 | return DEFAULT_TEMP; |
| 1264 | } |
| 1265 | |
| 1266 | static void |
| 1267 | qpnp_batt_external_power_changed(struct power_supply *psy) |
| 1268 | { |
| 1269 | struct qpnp_chg_chip *chip = container_of(psy, struct qpnp_chg_chip, |
| 1270 | batt_psy); |
| 1271 | union power_supply_propval ret = {0,}; |
| 1272 | |
| 1273 | if (!chip->bms_psy) |
| 1274 | chip->bms_psy = power_supply_get_by_name("bms"); |
| 1275 | |
| 1276 | chip->usb_psy->get_property(chip->usb_psy, |
| 1277 | POWER_SUPPLY_PROP_ONLINE, &ret); |
| 1278 | |
David Keitel | c69f2d6 | 2013-03-17 14:52:35 -0700 | [diff] [blame] | 1279 | /* Only honour requests while USB is present */ |
| 1280 | if (qpnp_chg_is_usb_chg_plugged_in(chip)) { |
David Keitel | 359ab65 | 2013-03-21 17:46:00 -0700 | [diff] [blame] | 1281 | chip->usb_psy->get_property(chip->usb_psy, |
| 1282 | POWER_SUPPLY_PROP_CURRENT_MAX, &ret); |
David Keitel | 8747325 | 2013-03-21 14:39:45 -0700 | [diff] [blame] | 1283 | if (ret.intval <= 2 && !chip->use_default_batt_values && |
| 1284 | get_prop_batt_present(chip)) { |
David Keitel | 359ab65 | 2013-03-21 17:46:00 -0700 | [diff] [blame] | 1285 | qpnp_chg_usb_suspend_enable(chip, 1); |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 1286 | qpnp_chg_iusbmax_set(chip, QPNP_CHG_I_MAX_MIN_100); |
David Keitel | c69f2d6 | 2013-03-17 14:52:35 -0700 | [diff] [blame] | 1287 | } else { |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 1288 | qpnp_chg_usb_suspend_enable(chip, 0); |
David Keitel | 359ab65 | 2013-03-21 17:46:00 -0700 | [diff] [blame] | 1289 | qpnp_chg_iusbmax_set(chip, ret.intval / 1000); |
David Keitel | c69f2d6 | 2013-03-17 14:52:35 -0700 | [diff] [blame] | 1290 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1291 | } |
| 1292 | |
| 1293 | pr_debug("end of power supply changed\n"); |
| 1294 | power_supply_changed(&chip->batt_psy); |
| 1295 | } |
| 1296 | |
| 1297 | static int |
| 1298 | qpnp_batt_power_get_property(struct power_supply *psy, |
| 1299 | enum power_supply_property psp, |
| 1300 | union power_supply_propval *val) |
| 1301 | { |
| 1302 | struct qpnp_chg_chip *chip = container_of(psy, struct qpnp_chg_chip, |
| 1303 | batt_psy); |
| 1304 | |
| 1305 | switch (psp) { |
| 1306 | case POWER_SUPPLY_PROP_STATUS: |
| 1307 | val->intval = get_prop_batt_status(chip); |
| 1308 | break; |
| 1309 | case POWER_SUPPLY_PROP_CHARGE_TYPE: |
| 1310 | val->intval = get_prop_charge_type(chip); |
| 1311 | break; |
| 1312 | case POWER_SUPPLY_PROP_HEALTH: |
| 1313 | val->intval = get_prop_batt_health(chip); |
| 1314 | break; |
| 1315 | case POWER_SUPPLY_PROP_PRESENT: |
| 1316 | val->intval = get_prop_batt_present(chip); |
| 1317 | break; |
| 1318 | case POWER_SUPPLY_PROP_TECHNOLOGY: |
| 1319 | val->intval = POWER_SUPPLY_TECHNOLOGY_LION; |
| 1320 | break; |
| 1321 | case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: |
| 1322 | val->intval = chip->max_voltage_mv * 1000; |
| 1323 | break; |
| 1324 | case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: |
| 1325 | val->intval = chip->min_voltage_mv * 1000; |
| 1326 | break; |
| 1327 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: |
| 1328 | val->intval = get_prop_battery_voltage_now(chip); |
| 1329 | break; |
| 1330 | case POWER_SUPPLY_PROP_TEMP: |
| 1331 | val->intval = get_prop_batt_temp(chip); |
| 1332 | break; |
| 1333 | case POWER_SUPPLY_PROP_CAPACITY: |
| 1334 | val->intval = get_prop_capacity(chip); |
| 1335 | break; |
| 1336 | case POWER_SUPPLY_PROP_CURRENT_NOW: |
| 1337 | val->intval = get_prop_current_now(chip); |
| 1338 | break; |
| 1339 | case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: |
| 1340 | val->intval = get_prop_full_design(chip); |
| 1341 | break; |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 1342 | case POWER_SUPPLY_PROP_CHARGING_ENABLED: |
David Keitel | 03ee6b5 | 2012-10-22 12:25:19 -0700 | [diff] [blame] | 1343 | val->intval = !(chip->charging_disabled); |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 1344 | break; |
David Keitel | be20825 | 2013-01-31 14:49:25 -0800 | [diff] [blame] | 1345 | case POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL: |
| 1346 | val->intval = chip->therm_lvl_sel; |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 1347 | break; |
| 1348 | default: |
| 1349 | return -EINVAL; |
| 1350 | } |
| 1351 | |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 1352 | return 0; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1353 | } |
| 1354 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1355 | #define QPNP_CHG_VINMIN_MIN_MV 3400 |
| 1356 | #define QPNP_CHG_VINMIN_HIGH_MIN_MV 5600 |
| 1357 | #define QPNP_CHG_VINMIN_HIGH_MIN_VAL 0x2B |
| 1358 | #define QPNP_CHG_VINMIN_MAX_MV 9600 |
| 1359 | #define QPNP_CHG_VINMIN_STEP_MV 50 |
| 1360 | #define QPNP_CHG_VINMIN_STEP_HIGH_MV 200 |
| 1361 | #define QPNP_CHG_VINMIN_MASK 0x1F |
| 1362 | static int |
| 1363 | qpnp_chg_vinmin_set(struct qpnp_chg_chip *chip, int voltage) |
| 1364 | { |
| 1365 | u8 temp; |
| 1366 | |
| 1367 | if (voltage < QPNP_CHG_VINMIN_MIN_MV |
| 1368 | || voltage > QPNP_CHG_VINMIN_MAX_MV) { |
| 1369 | pr_err("bad mV=%d asked to set\n", voltage); |
| 1370 | return -EINVAL; |
| 1371 | } |
| 1372 | if (voltage >= QPNP_CHG_VINMIN_HIGH_MIN_MV) { |
| 1373 | temp = QPNP_CHG_VINMIN_HIGH_MIN_VAL; |
| 1374 | temp += (voltage - QPNP_CHG_VINMIN_MIN_MV) |
| 1375 | / QPNP_CHG_VINMIN_STEP_HIGH_MV; |
| 1376 | } else { |
| 1377 | temp = (voltage - QPNP_CHG_VINMIN_MIN_MV) |
| 1378 | / QPNP_CHG_VINMIN_STEP_MV; |
| 1379 | } |
| 1380 | |
| 1381 | pr_debug("voltage=%d setting %02x\n", voltage, temp); |
| 1382 | return qpnp_chg_masked_write(chip, |
| 1383 | chip->chgr_base + CHGR_VIN_MIN, |
| 1384 | QPNP_CHG_VINMIN_MASK, temp, 1); |
| 1385 | } |
| 1386 | |
David Keitel | 5d44fa5 | 2012-12-03 16:37:31 -0800 | [diff] [blame] | 1387 | #define QPNP_CHG_IBATSAFE_MIN_MA 100 |
| 1388 | #define QPNP_CHG_IBATSAFE_MAX_MA 3250 |
| 1389 | #define QPNP_CHG_I_STEP_MA 50 |
| 1390 | #define QPNP_CHG_I_MIN_MA 100 |
| 1391 | #define QPNP_CHG_I_MASK 0x3F |
| 1392 | static int |
| 1393 | qpnp_chg_ibatsafe_set(struct qpnp_chg_chip *chip, int safe_current) |
| 1394 | { |
| 1395 | u8 temp; |
| 1396 | |
| 1397 | if (safe_current < QPNP_CHG_IBATSAFE_MIN_MA |
| 1398 | || safe_current > QPNP_CHG_IBATSAFE_MAX_MA) { |
| 1399 | pr_err("bad mA=%d asked to set\n", safe_current); |
| 1400 | return -EINVAL; |
| 1401 | } |
| 1402 | |
| 1403 | temp = (safe_current - QPNP_CHG_IBATSAFE_MIN_MA) |
| 1404 | / QPNP_CHG_I_STEP_MA; |
| 1405 | return qpnp_chg_masked_write(chip, |
| 1406 | chip->chgr_base + CHGR_IBAT_SAFE, |
| 1407 | QPNP_CHG_I_MASK, temp, 1); |
| 1408 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1409 | |
| 1410 | #define QPNP_CHG_ITERM_MIN_MA 100 |
| 1411 | #define QPNP_CHG_ITERM_MAX_MA 250 |
| 1412 | #define QPNP_CHG_ITERM_STEP_MA 50 |
| 1413 | #define QPNP_CHG_ITERM_MASK 0x03 |
| 1414 | static int |
| 1415 | qpnp_chg_ibatterm_set(struct qpnp_chg_chip *chip, int term_current) |
| 1416 | { |
| 1417 | u8 temp; |
| 1418 | |
| 1419 | if (term_current < QPNP_CHG_ITERM_MIN_MA |
| 1420 | || term_current > QPNP_CHG_ITERM_MAX_MA) { |
| 1421 | pr_err("bad mA=%d asked to set\n", term_current); |
| 1422 | return -EINVAL; |
| 1423 | } |
| 1424 | |
| 1425 | temp = (term_current - QPNP_CHG_ITERM_MIN_MA) |
| 1426 | / QPNP_CHG_ITERM_STEP_MA; |
| 1427 | return qpnp_chg_masked_write(chip, |
| 1428 | chip->chgr_base + CHGR_IBAT_TERM_CHGR, |
| 1429 | QPNP_CHG_ITERM_MASK, temp, 1); |
| 1430 | } |
| 1431 | |
David Keitel | ff5d047 | 2013-04-04 11:36:06 -0700 | [diff] [blame] | 1432 | #define QPNP_CHG_IBATMAX_MIN 50 |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1433 | #define QPNP_CHG_IBATMAX_MAX 3250 |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1434 | static int |
| 1435 | qpnp_chg_ibatmax_set(struct qpnp_chg_chip *chip, int chg_current) |
| 1436 | { |
| 1437 | u8 temp; |
| 1438 | |
| 1439 | if (chg_current < QPNP_CHG_IBATMAX_MIN |
| 1440 | || chg_current > QPNP_CHG_IBATMAX_MAX) { |
| 1441 | pr_err("bad mA=%d asked to set\n", chg_current); |
| 1442 | return -EINVAL; |
| 1443 | } |
David Keitel | ff5d047 | 2013-04-04 11:36:06 -0700 | [diff] [blame] | 1444 | temp = chg_current / QPNP_CHG_I_STEP_MA; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1445 | return qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_IBAT_MAX, |
| 1446 | QPNP_CHG_I_MASK, temp, 1); |
| 1447 | } |
| 1448 | |
David Keitel | a4b7b59 | 2013-04-11 18:34:35 -0700 | [diff] [blame] | 1449 | #define QPNP_CHG_TCHG_MASK 0x7F |
| 1450 | #define QPNP_CHG_TCHG_MIN 4 |
| 1451 | #define QPNP_CHG_TCHG_MAX 512 |
| 1452 | #define QPNP_CHG_TCHG_STEP 4 |
| 1453 | static int qpnp_chg_tchg_max_set(struct qpnp_chg_chip *chip, int minutes) |
| 1454 | { |
| 1455 | u8 temp; |
| 1456 | |
| 1457 | if (minutes < QPNP_CHG_TCHG_MIN || minutes > QPNP_CHG_TCHG_MAX) { |
| 1458 | pr_err("bad max minutes =%d asked to set\n", minutes); |
| 1459 | return -EINVAL; |
| 1460 | } |
| 1461 | |
| 1462 | temp = (minutes - 1)/QPNP_CHG_TCHG_STEP; |
| 1463 | return qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_TCHG_MAX, |
David Keitel | a1d1644 | 2013-05-09 14:47:37 -0700 | [diff] [blame] | 1464 | QPNP_CHG_TCHG_MASK, temp, 1); |
David Keitel | a4b7b59 | 2013-04-11 18:34:35 -0700 | [diff] [blame] | 1465 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1466 | |
| 1467 | #define QPNP_CHG_V_MIN_MV 3240 |
| 1468 | #define QPNP_CHG_V_MAX_MV 4500 |
| 1469 | #define QPNP_CHG_V_STEP_MV 10 |
| 1470 | static int |
| 1471 | qpnp_chg_vddsafe_set(struct qpnp_chg_chip *chip, int voltage) |
| 1472 | { |
| 1473 | u8 temp; |
| 1474 | |
| 1475 | if (voltage < QPNP_CHG_V_MIN_MV |
| 1476 | || voltage > QPNP_CHG_V_MAX_MV) { |
| 1477 | pr_err("bad mV=%d asked to set\n", voltage); |
| 1478 | return -EINVAL; |
| 1479 | } |
| 1480 | temp = (voltage - QPNP_CHG_V_MIN_MV) / QPNP_CHG_V_STEP_MV; |
| 1481 | pr_debug("voltage=%d setting %02x\n", voltage, temp); |
| 1482 | return qpnp_chg_write(chip, &temp, |
| 1483 | chip->chgr_base + CHGR_VDD_SAFE, 1); |
| 1484 | } |
| 1485 | |
| 1486 | #define QPNP_CHG_VDDMAX_MIN 3400 |
| 1487 | static int |
| 1488 | qpnp_chg_vddmax_set(struct qpnp_chg_chip *chip, int voltage) |
| 1489 | { |
| 1490 | u8 temp = 0; |
| 1491 | |
| 1492 | if (voltage < QPNP_CHG_VDDMAX_MIN |
| 1493 | || voltage > QPNP_CHG_V_MAX_MV) { |
| 1494 | pr_err("bad mV=%d asked to set\n", voltage); |
| 1495 | return -EINVAL; |
| 1496 | } |
| 1497 | |
| 1498 | temp = (voltage - QPNP_CHG_V_MIN_MV) / QPNP_CHG_V_STEP_MV; |
| 1499 | |
| 1500 | pr_debug("voltage=%d setting %02x\n", voltage, temp); |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1501 | return qpnp_chg_write(chip, &temp, chip->chgr_base + CHGR_VDD_MAX, 1); |
| 1502 | } |
| 1503 | |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 1504 | #define BOOST_MIN_UV 4200000 |
| 1505 | #define BOOST_MAX_UV 5500000 |
| 1506 | #define BOOST_STEP_UV 50000 |
| 1507 | #define BOOST_MIN 16 |
| 1508 | #define N_BOOST_V ((BOOST_MAX_UV - BOOST_MIN_UV) / BOOST_STEP_UV + 1) |
| 1509 | static int |
| 1510 | qpnp_boost_vset(struct qpnp_chg_chip *chip, int voltage) |
| 1511 | { |
| 1512 | u8 reg = 0; |
| 1513 | |
| 1514 | if (voltage < BOOST_MIN_UV || voltage > BOOST_MAX_UV) { |
| 1515 | pr_err("invalid voltage requested %d uV\n", voltage); |
| 1516 | return -EINVAL; |
| 1517 | } |
| 1518 | |
| 1519 | reg = DIV_ROUND_UP(voltage - BOOST_MIN_UV, BOOST_STEP_UV) + BOOST_MIN; |
| 1520 | |
| 1521 | pr_debug("voltage=%d setting %02x\n", voltage, reg); |
| 1522 | return qpnp_chg_write(chip, ®, chip->boost_base + BOOST_VSET, 1); |
| 1523 | } |
| 1524 | |
| 1525 | static int |
| 1526 | qpnp_boost_vget_uv(struct qpnp_chg_chip *chip) |
| 1527 | { |
| 1528 | int rc; |
| 1529 | u8 boost_reg; |
| 1530 | |
| 1531 | rc = qpnp_chg_read(chip, &boost_reg, |
| 1532 | chip->boost_base + BOOST_VSET, 1); |
| 1533 | if (rc) { |
| 1534 | pr_err("failed to read BOOST_VSET rc=%d\n", rc); |
| 1535 | return rc; |
| 1536 | } |
| 1537 | |
| 1538 | if (boost_reg < BOOST_MIN) { |
| 1539 | pr_err("Invalid reading from 0x%x\n", boost_reg); |
| 1540 | return -EINVAL; |
| 1541 | } |
| 1542 | |
| 1543 | return BOOST_MIN_UV + ((boost_reg - BOOST_MIN) * BOOST_STEP_UV); |
| 1544 | } |
| 1545 | |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1546 | /* JEITA compliance logic */ |
| 1547 | static void |
| 1548 | qpnp_chg_set_appropriate_vddmax(struct qpnp_chg_chip *chip) |
| 1549 | { |
| 1550 | if (chip->bat_is_cool) |
| 1551 | qpnp_chg_vddmax_set(chip, chip->cool_bat_mv); |
| 1552 | else if (chip->bat_is_warm) |
| 1553 | qpnp_chg_vddmax_set(chip, chip->warm_bat_mv); |
| 1554 | else |
| 1555 | qpnp_chg_vddmax_set(chip, chip->max_voltage_mv); |
| 1556 | } |
| 1557 | |
| 1558 | static void |
| 1559 | qpnp_chg_set_appropriate_vbatdet(struct qpnp_chg_chip *chip) |
| 1560 | { |
| 1561 | if (chip->bat_is_cool) |
| 1562 | qpnp_chg_vbatdet_set(chip, chip->cool_bat_mv |
| 1563 | - chip->resume_delta_mv); |
| 1564 | else if (chip->bat_is_warm) |
| 1565 | qpnp_chg_vbatdet_set(chip, chip->warm_bat_mv |
| 1566 | - chip->resume_delta_mv); |
| 1567 | else |
| 1568 | qpnp_chg_vbatdet_set(chip, chip->max_voltage_mv |
| 1569 | - chip->resume_delta_mv); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1570 | } |
| 1571 | |
David Keitel | be20825 | 2013-01-31 14:49:25 -0800 | [diff] [blame] | 1572 | static void |
| 1573 | qpnp_chg_set_appropriate_battery_current(struct qpnp_chg_chip *chip) |
| 1574 | { |
| 1575 | unsigned int chg_current = chip->max_bat_chg_current; |
| 1576 | |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1577 | if (chip->bat_is_cool) |
| 1578 | chg_current = min(chg_current, chip->cool_bat_chg_ma); |
| 1579 | |
| 1580 | if (chip->bat_is_warm) |
| 1581 | chg_current = min(chg_current, chip->warm_bat_chg_ma); |
| 1582 | |
David Keitel | be20825 | 2013-01-31 14:49:25 -0800 | [diff] [blame] | 1583 | if (chip->therm_lvl_sel != 0 && chip->thermal_mitigation) |
| 1584 | chg_current = min(chg_current, |
| 1585 | chip->thermal_mitigation[chip->therm_lvl_sel]); |
| 1586 | |
| 1587 | pr_debug("setting %d mA\n", chg_current); |
| 1588 | qpnp_chg_ibatmax_set(chip, chg_current); |
| 1589 | } |
| 1590 | |
| 1591 | static void |
| 1592 | qpnp_batt_system_temp_level_set(struct qpnp_chg_chip *chip, int lvl_sel) |
| 1593 | { |
| 1594 | if (lvl_sel >= 0 && lvl_sel < chip->thermal_levels) { |
| 1595 | chip->therm_lvl_sel = lvl_sel; |
| 1596 | if (lvl_sel == (chip->thermal_levels - 1)) { |
| 1597 | /* disable charging if highest value selected */ |
| 1598 | qpnp_chg_buck_control(chip, 0); |
| 1599 | } else { |
| 1600 | qpnp_chg_buck_control(chip, 1); |
| 1601 | qpnp_chg_set_appropriate_battery_current(chip); |
| 1602 | } |
| 1603 | } else { |
| 1604 | pr_err("Unsupported level selected %d\n", lvl_sel); |
| 1605 | } |
| 1606 | } |
| 1607 | |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 1608 | /* OTG regulator operations */ |
| 1609 | static int |
| 1610 | qpnp_chg_regulator_otg_enable(struct regulator_dev *rdev) |
| 1611 | { |
| 1612 | struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); |
| 1613 | |
| 1614 | return switch_usb_to_host_mode(chip); |
| 1615 | } |
| 1616 | |
| 1617 | static int |
| 1618 | qpnp_chg_regulator_otg_disable(struct regulator_dev *rdev) |
| 1619 | { |
| 1620 | struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); |
| 1621 | |
| 1622 | return switch_usb_to_charge_mode(chip); |
| 1623 | } |
| 1624 | |
| 1625 | static int |
| 1626 | qpnp_chg_regulator_otg_is_enabled(struct regulator_dev *rdev) |
| 1627 | { |
| 1628 | struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); |
| 1629 | |
| 1630 | return qpnp_chg_is_otg_en_set(chip); |
| 1631 | } |
| 1632 | |
| 1633 | static int |
| 1634 | qpnp_chg_regulator_boost_enable(struct regulator_dev *rdev) |
| 1635 | { |
| 1636 | struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); |
| 1637 | |
| 1638 | return qpnp_chg_masked_write(chip, |
| 1639 | chip->boost_base + BOOST_ENABLE_CONTROL, |
| 1640 | BOOST_PWR_EN, |
| 1641 | BOOST_PWR_EN, 1); |
| 1642 | } |
| 1643 | |
| 1644 | /* Boost regulator operations */ |
| 1645 | static int |
| 1646 | qpnp_chg_regulator_boost_disable(struct regulator_dev *rdev) |
| 1647 | { |
| 1648 | struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); |
| 1649 | |
| 1650 | return qpnp_chg_masked_write(chip, |
| 1651 | chip->boost_base + BOOST_ENABLE_CONTROL, |
| 1652 | BOOST_PWR_EN, |
| 1653 | 0, 1); |
| 1654 | } |
| 1655 | |
| 1656 | static int |
| 1657 | qpnp_chg_regulator_boost_is_enabled(struct regulator_dev *rdev) |
| 1658 | { |
| 1659 | struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); |
| 1660 | |
| 1661 | return qpnp_chg_is_boost_en_set(chip); |
| 1662 | } |
| 1663 | |
| 1664 | static int |
| 1665 | qpnp_chg_regulator_boost_set_voltage(struct regulator_dev *rdev, |
| 1666 | int min_uV, int max_uV, unsigned *selector) |
| 1667 | { |
| 1668 | int uV = min_uV; |
| 1669 | int rc; |
| 1670 | struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); |
| 1671 | |
| 1672 | if (uV < BOOST_MIN_UV && max_uV >= BOOST_MIN_UV) |
| 1673 | uV = BOOST_MIN_UV; |
| 1674 | |
| 1675 | |
| 1676 | if (uV < BOOST_MIN_UV || uV > BOOST_MAX_UV) { |
| 1677 | pr_err("request %d uV is out of bounds\n", uV); |
| 1678 | return -EINVAL; |
| 1679 | } |
| 1680 | |
| 1681 | *selector = DIV_ROUND_UP(uV - BOOST_MIN_UV, BOOST_STEP_UV); |
| 1682 | if ((*selector * BOOST_STEP_UV + BOOST_MIN_UV) > max_uV) { |
| 1683 | pr_err("no available setpoint [%d, %d] uV\n", min_uV, max_uV); |
| 1684 | return -EINVAL; |
| 1685 | } |
| 1686 | |
| 1687 | rc = qpnp_boost_vset(chip, uV); |
| 1688 | |
| 1689 | return rc; |
| 1690 | } |
| 1691 | |
| 1692 | static int |
| 1693 | qpnp_chg_regulator_boost_get_voltage(struct regulator_dev *rdev) |
| 1694 | { |
| 1695 | struct qpnp_chg_chip *chip = rdev_get_drvdata(rdev); |
| 1696 | |
| 1697 | return qpnp_boost_vget_uv(chip); |
| 1698 | } |
| 1699 | |
| 1700 | static int |
| 1701 | qpnp_chg_regulator_boost_list_voltage(struct regulator_dev *rdev, |
| 1702 | unsigned selector) |
| 1703 | { |
| 1704 | if (selector >= N_BOOST_V) |
| 1705 | return 0; |
| 1706 | |
| 1707 | return BOOST_MIN_UV + (selector * BOOST_STEP_UV); |
| 1708 | } |
| 1709 | |
| 1710 | static struct regulator_ops qpnp_chg_otg_reg_ops = { |
| 1711 | .enable = qpnp_chg_regulator_otg_enable, |
| 1712 | .disable = qpnp_chg_regulator_otg_disable, |
| 1713 | .is_enabled = qpnp_chg_regulator_otg_is_enabled, |
| 1714 | }; |
| 1715 | |
| 1716 | static struct regulator_ops qpnp_chg_boost_reg_ops = { |
| 1717 | .enable = qpnp_chg_regulator_boost_enable, |
| 1718 | .disable = qpnp_chg_regulator_boost_disable, |
| 1719 | .is_enabled = qpnp_chg_regulator_boost_is_enabled, |
| 1720 | .set_voltage = qpnp_chg_regulator_boost_set_voltage, |
| 1721 | .get_voltage = qpnp_chg_regulator_boost_get_voltage, |
| 1722 | .list_voltage = qpnp_chg_regulator_boost_list_voltage, |
| 1723 | }; |
| 1724 | |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 1725 | #define CONSECUTIVE_COUNT 3 |
| 1726 | static void |
| 1727 | qpnp_eoc_work(struct work_struct *work) |
| 1728 | { |
| 1729 | struct delayed_work *dwork = to_delayed_work(work); |
| 1730 | struct qpnp_chg_chip *chip = container_of(dwork, |
| 1731 | struct qpnp_chg_chip, eoc_work); |
| 1732 | static int count; |
| 1733 | int ibat_ma, vbat_mv, rc = 0; |
| 1734 | u8 batt_sts = 0, buck_sts = 0, chg_sts = 0; |
| 1735 | |
| 1736 | wake_lock(&chip->eoc_wake_lock); |
| 1737 | qpnp_chg_charge_en(chip, !chip->charging_disabled); |
| 1738 | |
| 1739 | rc = qpnp_chg_read(chip, &batt_sts, INT_RT_STS(chip->bat_if_base), 1); |
| 1740 | if (rc) { |
| 1741 | pr_err("failed to read batt_if rc=%d\n", rc); |
| 1742 | return; |
| 1743 | } |
| 1744 | |
| 1745 | rc = qpnp_chg_read(chip, &buck_sts, INT_RT_STS(chip->buck_base), 1); |
| 1746 | if (rc) { |
| 1747 | pr_err("failed to read buck rc=%d\n", rc); |
| 1748 | return; |
| 1749 | } |
| 1750 | |
| 1751 | rc = qpnp_chg_read(chip, &chg_sts, INT_RT_STS(chip->chgr_base), 1); |
| 1752 | if (rc) { |
| 1753 | pr_err("failed to read chg_sts rc=%d\n", rc); |
| 1754 | return; |
| 1755 | } |
| 1756 | |
| 1757 | pr_debug("chgr: 0x%x, bat_if: 0x%x, buck: 0x%x\n", |
| 1758 | chg_sts, batt_sts, buck_sts); |
| 1759 | |
| 1760 | if (!qpnp_chg_is_usb_chg_plugged_in(chip) && |
| 1761 | !qpnp_chg_is_dc_chg_plugged_in(chip)) { |
| 1762 | pr_debug("no chg connected, stopping\n"); |
| 1763 | goto stop_eoc; |
| 1764 | } |
| 1765 | |
| 1766 | if ((batt_sts & BAT_FET_ON_IRQ) && (chg_sts & FAST_CHG_ON_IRQ |
| 1767 | || chg_sts & TRKL_CHG_ON_IRQ)) { |
| 1768 | ibat_ma = get_prop_current_now(chip) / 1000; |
| 1769 | vbat_mv = get_prop_battery_voltage_now(chip) / 1000; |
| 1770 | pr_debug("ibat_ma: %d term_current =%d\n", |
| 1771 | ibat_ma, chip->term_current); |
| 1772 | if (ibat_ma > chip->term_current) { |
| 1773 | pr_debug("charging but increase in current demand\n"); |
| 1774 | count = 0; |
| 1775 | } else if ((ibat_ma * -1) < chip->term_current) { |
| 1776 | if (count == CONSECUTIVE_COUNT) { |
| 1777 | pr_info("End of Charging\n"); |
| 1778 | qpnp_chg_charge_en(chip, 0); |
| 1779 | chip->chg_done = true; |
| 1780 | power_supply_changed(&chip->batt_psy); |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1781 | qpnp_chg_enable_irq(&chip->chg_vbatdet_lo); |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 1782 | goto stop_eoc; |
| 1783 | } else { |
| 1784 | count += 1; |
| 1785 | pr_debug("EOC count = %d\n", count); |
| 1786 | } |
| 1787 | } else if ((!(chg_sts & VBAT_DET_LOW_IRQ)) && (vbat_mv < |
| 1788 | (chip->max_voltage_mv - chip->resume_delta_mv))) { |
| 1789 | pr_debug("woke up too early\n"); |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1790 | qpnp_chg_enable_irq(&chip->chg_vbatdet_lo); |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 1791 | goto stop_eoc; |
| 1792 | } |
| 1793 | } else { |
| 1794 | pr_debug("not charging\n"); |
| 1795 | goto stop_eoc; |
| 1796 | } |
| 1797 | |
| 1798 | schedule_delayed_work(&chip->eoc_work, |
| 1799 | msecs_to_jiffies(EOC_CHECK_PERIOD_MS)); |
| 1800 | return; |
| 1801 | |
| 1802 | stop_eoc: |
| 1803 | count = 0; |
| 1804 | wake_unlock(&chip->eoc_wake_lock); |
| 1805 | } |
| 1806 | |
David Keitel | 0c1a453 | 2013-03-21 16:39:06 -0700 | [diff] [blame] | 1807 | #define HYSTERISIS_DECIDEGC 20 |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1808 | static void |
| 1809 | qpnp_chg_adc_notification(enum qpnp_tm_state state, void *ctx) |
| 1810 | { |
| 1811 | struct qpnp_chg_chip *chip = ctx; |
| 1812 | bool bat_warm = 0, bat_cool = 0; |
David Keitel | 1219a80 | 2013-03-21 16:37:21 -0700 | [diff] [blame] | 1813 | int temp; |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1814 | |
| 1815 | if (state >= ADC_TM_STATE_NUM) { |
| 1816 | pr_err("invalid notification %d\n", state); |
| 1817 | return; |
| 1818 | } |
| 1819 | |
David Keitel | 1219a80 | 2013-03-21 16:37:21 -0700 | [diff] [blame] | 1820 | temp = get_prop_batt_temp(chip); |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1821 | |
David Keitel | 1219a80 | 2013-03-21 16:37:21 -0700 | [diff] [blame] | 1822 | pr_debug("temp = %d state = %s\n", temp, |
| 1823 | state == ADC_TM_WARM_STATE ? "warm" : "cool"); |
| 1824 | |
| 1825 | if (state == ADC_TM_WARM_STATE) { |
| 1826 | if (temp > chip->warm_bat_decidegc) { |
David Keitel | 3e37e5a | 2013-04-18 10:42:30 -0700 | [diff] [blame] | 1827 | /* Normal to warm */ |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1828 | bat_warm = true; |
| 1829 | bat_cool = false; |
| 1830 | chip->adc_param.low_temp = |
David Keitel | 0c1a453 | 2013-03-21 16:39:06 -0700 | [diff] [blame] | 1831 | chip->warm_bat_decidegc - HYSTERISIS_DECIDEGC; |
David Keitel | 1219a80 | 2013-03-21 16:37:21 -0700 | [diff] [blame] | 1832 | chip->adc_param.state_request = |
| 1833 | ADC_TM_COOL_THR_ENABLE; |
| 1834 | } else if (temp > |
| 1835 | chip->cool_bat_decidegc + HYSTERISIS_DECIDEGC){ |
David Keitel | 3e37e5a | 2013-04-18 10:42:30 -0700 | [diff] [blame] | 1836 | /* Cool to normal */ |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1837 | bat_warm = false; |
| 1838 | bat_cool = false; |
David Keitel | 1219a80 | 2013-03-21 16:37:21 -0700 | [diff] [blame] | 1839 | |
| 1840 | chip->adc_param.low_temp = chip->cool_bat_decidegc; |
David Keitel | 0c1a453 | 2013-03-21 16:39:06 -0700 | [diff] [blame] | 1841 | chip->adc_param.high_temp = chip->warm_bat_decidegc; |
David Keitel | 1219a80 | 2013-03-21 16:37:21 -0700 | [diff] [blame] | 1842 | chip->adc_param.state_request = |
| 1843 | ADC_TM_HIGH_LOW_THR_ENABLE; |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1844 | } |
| 1845 | } else { |
David Keitel | 1219a80 | 2013-03-21 16:37:21 -0700 | [diff] [blame] | 1846 | if (temp < chip->cool_bat_decidegc) { |
David Keitel | 3e37e5a | 2013-04-18 10:42:30 -0700 | [diff] [blame] | 1847 | /* Normal to cool */ |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1848 | bat_warm = false; |
David Keitel | 1219a80 | 2013-03-21 16:37:21 -0700 | [diff] [blame] | 1849 | bat_cool = true; |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1850 | chip->adc_param.high_temp = |
David Keitel | 0c1a453 | 2013-03-21 16:39:06 -0700 | [diff] [blame] | 1851 | chip->cool_bat_decidegc + HYSTERISIS_DECIDEGC; |
David Keitel | 1219a80 | 2013-03-21 16:37:21 -0700 | [diff] [blame] | 1852 | chip->adc_param.state_request = |
| 1853 | ADC_TM_WARM_THR_ENABLE; |
David Keitel | 3e37e5a | 2013-04-18 10:42:30 -0700 | [diff] [blame] | 1854 | } else if (temp < |
David Keitel | 1219a80 | 2013-03-21 16:37:21 -0700 | [diff] [blame] | 1855 | chip->warm_bat_decidegc - HYSTERISIS_DECIDEGC){ |
David Keitel | 3e37e5a | 2013-04-18 10:42:30 -0700 | [diff] [blame] | 1856 | /* Warm to normal */ |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1857 | bat_warm = false; |
David Keitel | 1219a80 | 2013-03-21 16:37:21 -0700 | [diff] [blame] | 1858 | bat_cool = false; |
| 1859 | |
David Keitel | 0c1a453 | 2013-03-21 16:39:06 -0700 | [diff] [blame] | 1860 | chip->adc_param.low_temp = chip->cool_bat_decidegc; |
David Keitel | 1219a80 | 2013-03-21 16:37:21 -0700 | [diff] [blame] | 1861 | chip->adc_param.high_temp = chip->warm_bat_decidegc; |
| 1862 | chip->adc_param.state_request = |
| 1863 | ADC_TM_HIGH_LOW_THR_ENABLE; |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1864 | } |
| 1865 | } |
| 1866 | |
| 1867 | if (chip->bat_is_cool ^ bat_cool || chip->bat_is_warm ^ bat_warm) { |
David Keitel | 1219a80 | 2013-03-21 16:37:21 -0700 | [diff] [blame] | 1868 | chip->bat_is_cool = bat_cool; |
| 1869 | chip->bat_is_warm = bat_warm; |
| 1870 | |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1871 | /* set appropriate voltages and currents */ |
| 1872 | qpnp_chg_set_appropriate_vddmax(chip); |
| 1873 | qpnp_chg_set_appropriate_battery_current(chip); |
| 1874 | qpnp_chg_set_appropriate_vbatdet(chip); |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1875 | } |
| 1876 | |
David Keitel | 1219a80 | 2013-03-21 16:37:21 -0700 | [diff] [blame] | 1877 | if (qpnp_adc_tm_channel_measure(&chip->adc_param)) |
| 1878 | pr_err("request ADC error\n"); |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 1879 | } |
| 1880 | |
David Keitel | be20825 | 2013-01-31 14:49:25 -0800 | [diff] [blame] | 1881 | static int |
| 1882 | qpnp_batt_power_set_property(struct power_supply *psy, |
| 1883 | enum power_supply_property psp, |
| 1884 | const union power_supply_propval *val) |
| 1885 | { |
| 1886 | struct qpnp_chg_chip *chip = container_of(psy, struct qpnp_chg_chip, |
| 1887 | batt_psy); |
| 1888 | |
| 1889 | switch (psp) { |
| 1890 | case POWER_SUPPLY_PROP_CHARGING_ENABLED: |
| 1891 | chip->charging_disabled = !(val->intval); |
| 1892 | qpnp_chg_charge_en(chip, !chip->charging_disabled); |
| 1893 | qpnp_chg_force_run_on_batt(chip, chip->charging_disabled); |
| 1894 | break; |
| 1895 | case POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL: |
| 1896 | qpnp_batt_system_temp_level_set(chip, val->intval); |
| 1897 | break; |
| 1898 | default: |
| 1899 | return -EINVAL; |
| 1900 | } |
| 1901 | |
| 1902 | power_supply_changed(&chip->batt_psy); |
| 1903 | return 0; |
| 1904 | } |
Sridhar Parasuram | ae183bd | 2012-12-21 09:28:46 -0800 | [diff] [blame] | 1905 | |
| 1906 | static void |
| 1907 | qpnp_chg_setup_flags(struct qpnp_chg_chip *chip) |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 1908 | { |
David Keitel | fe51cb9 | 2013-04-02 19:42:58 -0700 | [diff] [blame] | 1909 | if (chip->revision > 0 && chip->type == SMBB) |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 1910 | chip->flags |= CHG_FLAGS_VCP_WA; |
| 1911 | } |
| 1912 | |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 1913 | static int |
| 1914 | qpnp_chg_request_irqs(struct qpnp_chg_chip *chip) |
| 1915 | { |
| 1916 | int rc = 0; |
| 1917 | struct resource *resource; |
| 1918 | struct spmi_resource *spmi_resource; |
| 1919 | u8 subtype; |
| 1920 | struct spmi_device *spmi = chip->spmi; |
| 1921 | |
| 1922 | spmi_for_each_container_dev(spmi_resource, chip->spmi) { |
| 1923 | if (!spmi_resource) { |
| 1924 | pr_err("qpnp_chg: spmi resource absent\n"); |
| 1925 | return rc; |
| 1926 | } |
| 1927 | |
| 1928 | resource = spmi_get_resource(spmi, spmi_resource, |
| 1929 | IORESOURCE_MEM, 0); |
| 1930 | if (!(resource && resource->start)) { |
| 1931 | pr_err("node %s IO resource absent!\n", |
| 1932 | spmi->dev.of_node->full_name); |
| 1933 | return rc; |
| 1934 | } |
| 1935 | |
| 1936 | rc = qpnp_chg_read(chip, &subtype, |
| 1937 | resource->start + REG_OFFSET_PERP_SUBTYPE, 1); |
| 1938 | if (rc) { |
| 1939 | pr_err("Peripheral subtype read failed rc=%d\n", rc); |
| 1940 | return rc; |
| 1941 | } |
| 1942 | |
| 1943 | switch (subtype) { |
| 1944 | case SMBB_CHGR_SUBTYPE: |
| 1945 | case SMBBP_CHGR_SUBTYPE: |
| 1946 | case SMBCL_CHGR_SUBTYPE: |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1947 | chip->chg_fastchg.irq = spmi_get_irq_byname(spmi, |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 1948 | spmi_resource, "fast-chg-on"); |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1949 | if (chip->chg_fastchg.irq < 0) { |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 1950 | pr_err("Unable to get fast-chg-on irq\n"); |
| 1951 | return rc; |
| 1952 | } |
| 1953 | |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1954 | chip->chg_trklchg.irq = spmi_get_irq_byname(spmi, |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 1955 | spmi_resource, "trkl-chg-on"); |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1956 | if (chip->chg_trklchg.irq < 0) { |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 1957 | pr_err("Unable to get trkl-chg-on irq\n"); |
| 1958 | return rc; |
| 1959 | } |
| 1960 | |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1961 | chip->chg_failed.irq = spmi_get_irq_byname(spmi, |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 1962 | spmi_resource, "chg-failed"); |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1963 | if (chip->chg_failed.irq < 0) { |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 1964 | pr_err("Unable to get chg_failed irq\n"); |
| 1965 | return rc; |
| 1966 | } |
| 1967 | |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1968 | chip->chg_vbatdet_lo.irq = spmi_get_irq_byname(spmi, |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 1969 | spmi_resource, "vbat-det-lo"); |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1970 | if (chip->chg_vbatdet_lo.irq < 0) { |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 1971 | pr_err("Unable to get fast-chg-on irq\n"); |
| 1972 | return rc; |
| 1973 | } |
| 1974 | |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1975 | rc |= devm_request_irq(chip->dev, chip->chg_failed.irq, |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 1976 | qpnp_chg_chgr_chg_failed_irq_handler, |
David Keitel | c9f1917 | 2013-04-29 11:01:26 -0700 | [diff] [blame] | 1977 | IRQF_TRIGGER_RISING, "chg-failed", chip); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 1978 | if (rc < 0) { |
David Keitel | c9f1917 | 2013-04-29 11:01:26 -0700 | [diff] [blame] | 1979 | pr_err("Can't request %d chg-failed: %d\n", |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1980 | chip->chg_failed.irq, rc); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 1981 | return rc; |
| 1982 | } |
| 1983 | |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1984 | rc |= devm_request_irq(chip->dev, chip->chg_fastchg.irq, |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 1985 | qpnp_chg_chgr_chg_fastchg_irq_handler, |
| 1986 | IRQF_TRIGGER_RISING, |
| 1987 | "fast-chg-on", chip); |
| 1988 | if (rc < 0) { |
| 1989 | pr_err("Can't request %d fast-chg-on: %d\n", |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1990 | chip->chg_fastchg.irq, rc); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 1991 | return rc; |
| 1992 | } |
| 1993 | |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 1994 | rc |= devm_request_irq(chip->dev, chip->chg_trklchg.irq, |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 1995 | qpnp_chg_chgr_chg_trklchg_irq_handler, |
| 1996 | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, |
David Keitel | c9f1917 | 2013-04-29 11:01:26 -0700 | [diff] [blame] | 1997 | "trkl-chg-on", chip); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 1998 | if (rc < 0) { |
| 1999 | pr_err("Can't request %d trkl-chg-on: %d\n", |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2000 | chip->chg_trklchg.irq, rc); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2001 | return rc; |
| 2002 | } |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 2003 | |
| 2004 | rc |= devm_request_irq(chip->dev, |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2005 | chip->chg_vbatdet_lo.irq, |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 2006 | qpnp_chg_vbatdet_lo_irq_handler, |
| 2007 | IRQF_TRIGGER_RISING, |
| 2008 | "vbat-det-lo", chip); |
| 2009 | if (rc < 0) { |
| 2010 | pr_err("Can't request %d vbat-det-lo: %d\n", |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2011 | chip->chg_vbatdet_lo.irq, rc); |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 2012 | return rc; |
| 2013 | } |
| 2014 | |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2015 | enable_irq_wake(chip->chg_trklchg.irq); |
| 2016 | enable_irq_wake(chip->chg_failed.irq); |
| 2017 | qpnp_chg_disable_irq(&chip->chg_vbatdet_lo); |
| 2018 | enable_irq_wake(chip->chg_vbatdet_lo.irq); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2019 | |
| 2020 | break; |
| 2021 | case SMBB_BAT_IF_SUBTYPE: |
| 2022 | case SMBBP_BAT_IF_SUBTYPE: |
| 2023 | case SMBCL_BAT_IF_SUBTYPE: |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2024 | chip->batt_pres.irq = spmi_get_irq_byname(spmi, |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2025 | spmi_resource, "batt-pres"); |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2026 | if (chip->batt_pres.irq < 0) { |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2027 | pr_err("Unable to get batt-pres irq\n"); |
| 2028 | return rc; |
| 2029 | } |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2030 | rc = devm_request_irq(chip->dev, chip->batt_pres.irq, |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2031 | qpnp_chg_bat_if_batt_pres_irq_handler, |
| 2032 | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, |
David Keitel | c9f1917 | 2013-04-29 11:01:26 -0700 | [diff] [blame] | 2033 | "batt-pres", chip); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2034 | if (rc < 0) { |
| 2035 | pr_err("Can't request %d batt-pres irq: %d\n", |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2036 | chip->batt_pres.irq, rc); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2037 | return rc; |
| 2038 | } |
| 2039 | |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2040 | enable_irq_wake(chip->batt_pres.irq); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2041 | break; |
| 2042 | case SMBB_USB_CHGPTH_SUBTYPE: |
| 2043 | case SMBBP_USB_CHGPTH_SUBTYPE: |
| 2044 | case SMBCL_USB_CHGPTH_SUBTYPE: |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2045 | chip->usbin_valid.irq = spmi_get_irq_byname(spmi, |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2046 | spmi_resource, "usbin-valid"); |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2047 | if (chip->usbin_valid.irq < 0) { |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2048 | pr_err("Unable to get usbin irq\n"); |
| 2049 | return rc; |
| 2050 | } |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2051 | rc = devm_request_irq(chip->dev, chip->usbin_valid.irq, |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2052 | qpnp_chg_usb_usbin_valid_irq_handler, |
| 2053 | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, |
David Keitel | c9f1917 | 2013-04-29 11:01:26 -0700 | [diff] [blame] | 2054 | "usbin-valid", chip); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2055 | if (rc < 0) { |
David Keitel | c9f1917 | 2013-04-29 11:01:26 -0700 | [diff] [blame] | 2056 | pr_err("Can't request %d usbin-valid: %d\n", |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2057 | chip->usbin_valid.irq, rc); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2058 | return rc; |
| 2059 | } |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 2060 | |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2061 | chip->chg_gone.irq = spmi_get_irq_byname(spmi, |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 2062 | spmi_resource, "chg-gone"); |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2063 | if (chip->chg_gone.irq < 0) { |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 2064 | pr_err("Unable to get chg-gone irq\n"); |
| 2065 | return rc; |
| 2066 | } |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2067 | rc = devm_request_irq(chip->dev, chip->chg_gone.irq, |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 2068 | qpnp_chg_usb_chg_gone_irq_handler, |
| 2069 | IRQF_TRIGGER_RISING, |
David Keitel | c9f1917 | 2013-04-29 11:01:26 -0700 | [diff] [blame] | 2070 | "chg-gone", chip); |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 2071 | if (rc < 0) { |
David Keitel | c9f1917 | 2013-04-29 11:01:26 -0700 | [diff] [blame] | 2072 | pr_err("Can't request %d chg-gone: %d\n", |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2073 | chip->chg_gone.irq, rc); |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 2074 | return rc; |
| 2075 | } |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2076 | |
| 2077 | enable_irq_wake(chip->usbin_valid.irq); |
| 2078 | enable_irq_wake(chip->chg_gone.irq); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2079 | break; |
| 2080 | case SMBB_DC_CHGPTH_SUBTYPE: |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2081 | chip->dcin_valid.irq = spmi_get_irq_byname(spmi, |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2082 | spmi_resource, "dcin-valid"); |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2083 | if (chip->dcin_valid.irq < 0) { |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2084 | pr_err("Unable to get dcin irq\n"); |
| 2085 | return -rc; |
| 2086 | } |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2087 | rc = devm_request_irq(chip->dev, chip->dcin_valid.irq, |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2088 | qpnp_chg_dc_dcin_valid_irq_handler, |
| 2089 | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, |
David Keitel | c9f1917 | 2013-04-29 11:01:26 -0700 | [diff] [blame] | 2090 | "dcin-valid", chip); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2091 | if (rc < 0) { |
David Keitel | c9f1917 | 2013-04-29 11:01:26 -0700 | [diff] [blame] | 2092 | pr_err("Can't request %d dcin-valid: %d\n", |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2093 | chip->dcin_valid.irq, rc); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2094 | return rc; |
| 2095 | } |
| 2096 | |
David Keitel | 47185a6 | 2013-05-15 18:54:10 -0700 | [diff] [blame] | 2097 | enable_irq_wake(chip->dcin_valid.irq); |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2098 | break; |
| 2099 | } |
| 2100 | } |
| 2101 | |
| 2102 | return rc; |
| 2103 | } |
| 2104 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2105 | #define WDOG_EN_BIT BIT(7) |
| 2106 | static int |
| 2107 | qpnp_chg_hwinit(struct qpnp_chg_chip *chip, u8 subtype, |
| 2108 | struct spmi_resource *spmi_resource) |
| 2109 | { |
| 2110 | int rc = 0; |
David Keitel | 796882d | 2013-05-14 18:01:11 -0700 | [diff] [blame] | 2111 | u8 reg = 0; |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 2112 | struct regulator_init_data *init_data; |
| 2113 | struct regulator_desc *rdesc; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2114 | |
| 2115 | switch (subtype) { |
| 2116 | case SMBB_CHGR_SUBTYPE: |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2117 | case SMBBP_CHGR_SUBTYPE: |
David Keitel | 46c9f7b | 2013-04-02 19:54:12 -0700 | [diff] [blame] | 2118 | case SMBCL_CHGR_SUBTYPE: |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2119 | rc = qpnp_chg_vinmin_set(chip, chip->min_voltage_mv); |
| 2120 | if (rc) { |
| 2121 | pr_debug("failed setting min_voltage rc=%d\n", rc); |
| 2122 | return rc; |
| 2123 | } |
| 2124 | rc = qpnp_chg_vddmax_set(chip, chip->max_voltage_mv); |
| 2125 | if (rc) { |
| 2126 | pr_debug("failed setting max_voltage rc=%d\n", rc); |
| 2127 | return rc; |
| 2128 | } |
| 2129 | rc = qpnp_chg_vddsafe_set(chip, chip->safe_voltage_mv); |
| 2130 | if (rc) { |
| 2131 | pr_debug("failed setting safe_voltage rc=%d\n", rc); |
| 2132 | return rc; |
| 2133 | } |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 2134 | rc = qpnp_chg_vbatdet_set(chip, |
| 2135 | chip->max_voltage_mv - chip->resume_delta_mv); |
David Keitel | 5d44fa5 | 2012-12-03 16:37:31 -0800 | [diff] [blame] | 2136 | if (rc) { |
| 2137 | pr_debug("failed setting resume_voltage rc=%d\n", rc); |
| 2138 | return rc; |
| 2139 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2140 | rc = qpnp_chg_ibatmax_set(chip, chip->max_bat_chg_current); |
| 2141 | if (rc) { |
| 2142 | pr_debug("failed setting ibatmax rc=%d\n", rc); |
| 2143 | return rc; |
| 2144 | } |
David Keitel | 365c4c4 | 2013-03-08 16:20:40 -0800 | [diff] [blame] | 2145 | if (chip->term_current) { |
| 2146 | rc = qpnp_chg_ibatterm_set(chip, chip->term_current); |
| 2147 | if (rc) { |
| 2148 | pr_debug("failed setting ibatterm rc=%d\n", rc); |
| 2149 | return rc; |
| 2150 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2151 | } |
David Keitel | 5d44fa5 | 2012-12-03 16:37:31 -0800 | [diff] [blame] | 2152 | rc = qpnp_chg_ibatsafe_set(chip, chip->safe_current); |
| 2153 | if (rc) { |
| 2154 | pr_debug("failed setting ibat_Safe rc=%d\n", rc); |
| 2155 | return rc; |
| 2156 | } |
David Keitel | a4b7b59 | 2013-04-11 18:34:35 -0700 | [diff] [blame] | 2157 | rc = qpnp_chg_tchg_max_set(chip, chip->tchg_mins); |
| 2158 | if (rc) { |
| 2159 | pr_debug("failed setting tchg_mins rc=%d\n", rc); |
| 2160 | return rc; |
| 2161 | } |
| 2162 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2163 | /* HACK: Disable wdog */ |
| 2164 | rc = qpnp_chg_masked_write(chip, chip->chgr_base + 0x62, |
| 2165 | 0xFF, 0xA0, 1); |
| 2166 | |
David Keitel | b4e4354 | 2013-04-09 17:30:41 -0700 | [diff] [blame] | 2167 | /* HACK: use analog EOC */ |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2168 | rc = qpnp_chg_masked_write(chip, chip->chgr_base + |
| 2169 | CHGR_IBAT_TERM_CHGR, |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 2170 | 0xFF, 0x08, 1); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2171 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2172 | break; |
| 2173 | case SMBB_BUCK_SUBTYPE: |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2174 | case SMBBP_BUCK_SUBTYPE: |
David Keitel | 46c9f7b | 2013-04-02 19:54:12 -0700 | [diff] [blame] | 2175 | case SMBCL_BUCK_SUBTYPE: |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 2176 | rc = qpnp_chg_toggle_chg_done_logic(chip, 0); |
| 2177 | if (rc) |
| 2178 | return rc; |
| 2179 | |
David Keitel | 9201df3 | 2013-01-10 18:38:34 -0800 | [diff] [blame] | 2180 | rc = qpnp_chg_masked_write(chip, |
| 2181 | chip->chgr_base + CHGR_BUCK_BCK_VBAT_REG_MODE, |
| 2182 | BUCK_VBAT_REG_NODE_SEL_BIT, |
| 2183 | BUCK_VBAT_REG_NODE_SEL_BIT, 1); |
| 2184 | if (rc) { |
| 2185 | pr_debug("failed to enable IR drop comp rc=%d\n", rc); |
| 2186 | return rc; |
| 2187 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2188 | break; |
| 2189 | case SMBB_BAT_IF_SUBTYPE: |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2190 | case SMBBP_BAT_IF_SUBTYPE: |
David Keitel | 46c9f7b | 2013-04-02 19:54:12 -0700 | [diff] [blame] | 2191 | case SMBCL_BAT_IF_SUBTYPE: |
David Keitel | 796882d | 2013-05-14 18:01:11 -0700 | [diff] [blame] | 2192 | /* Select battery presence detection */ |
| 2193 | if (chip->bpd_detection == 1) |
| 2194 | reg = BAT_ID_EN; |
| 2195 | else if (chip->bpd_detection == 2) |
| 2196 | reg = BAT_ID_EN | BAT_THM_EN; |
| 2197 | |
| 2198 | rc = qpnp_chg_masked_write(chip, |
| 2199 | chip->bat_if_base + BAT_IF_BPD_CTRL, |
| 2200 | BAT_IF_BPD_CTRL_SEL, |
| 2201 | reg, 1); |
| 2202 | if (rc) { |
| 2203 | pr_debug("failed to chose BPD rc=%d\n", rc); |
| 2204 | return rc; |
| 2205 | } |
David Keitel | 85ae434 | 2013-04-16 11:46:00 -0700 | [diff] [blame] | 2206 | /* Force on VREF_BAT_THM */ |
| 2207 | rc = qpnp_chg_masked_write(chip, |
| 2208 | chip->bat_if_base + BAT_IF_VREF_BAT_THM_CTRL, |
| 2209 | VREF_BATT_THERM_FORCE_ON, |
| 2210 | VREF_BATT_THERM_FORCE_ON, 1); |
| 2211 | if (rc) { |
| 2212 | pr_debug("failed to force on VREF_BAT_THM rc=%d\n", rc); |
| 2213 | return rc; |
| 2214 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2215 | break; |
| 2216 | case SMBB_USB_CHGPTH_SUBTYPE: |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2217 | case SMBBP_USB_CHGPTH_SUBTYPE: |
David Keitel | 46c9f7b | 2013-04-02 19:54:12 -0700 | [diff] [blame] | 2218 | case SMBCL_USB_CHGPTH_SUBTYPE: |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 2219 | if (qpnp_chg_is_usb_chg_plugged_in(chip)) { |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2220 | rc = qpnp_chg_masked_write(chip, |
| 2221 | chip->usb_chgpth_base + CHGR_USB_ENUM_T_STOP, |
| 2222 | ENUM_T_STOP_BIT, |
| 2223 | ENUM_T_STOP_BIT, 1); |
| 2224 | if (rc) { |
| 2225 | pr_err("failed to write enum stop rc=%d\n", rc); |
| 2226 | return -ENXIO; |
| 2227 | } |
| 2228 | } |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 2229 | |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 2230 | init_data = of_get_regulator_init_data(chip->dev, |
| 2231 | spmi_resource->of_node); |
| 2232 | if (!init_data) { |
| 2233 | pr_err("unable to allocate memory\n"); |
| 2234 | return -ENOMEM; |
| 2235 | } |
| 2236 | |
| 2237 | if (init_data->constraints.name) { |
| 2238 | if (of_get_property(chip->dev->of_node, |
| 2239 | "otg-parent-supply", NULL)) |
| 2240 | init_data->supply_regulator = "otg-parent"; |
| 2241 | |
| 2242 | rdesc = &(chip->otg_vreg.rdesc); |
| 2243 | rdesc->owner = THIS_MODULE; |
| 2244 | rdesc->type = REGULATOR_VOLTAGE; |
| 2245 | rdesc->ops = &qpnp_chg_otg_reg_ops; |
| 2246 | rdesc->name = init_data->constraints.name; |
| 2247 | |
| 2248 | init_data->constraints.valid_ops_mask |
| 2249 | |= REGULATOR_CHANGE_STATUS; |
| 2250 | |
| 2251 | chip->otg_vreg.rdev = regulator_register(rdesc, |
| 2252 | chip->dev, init_data, chip, |
| 2253 | spmi_resource->of_node); |
| 2254 | if (IS_ERR(chip->otg_vreg.rdev)) { |
| 2255 | rc = PTR_ERR(chip->otg_vreg.rdev); |
| 2256 | if (rc != -EPROBE_DEFER) |
| 2257 | pr_err("OTG reg failed, rc=%d\n", rc); |
| 2258 | return rc; |
| 2259 | } |
| 2260 | } |
| 2261 | |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 2262 | rc = qpnp_chg_masked_write(chip, |
David Keitel | 5c3a770 | 2012-12-20 11:13:21 -0800 | [diff] [blame] | 2263 | chip->usb_chgpth_base + USB_OVP_CTL, |
| 2264 | USB_VALID_DEB_20MS, |
| 2265 | USB_VALID_DEB_20MS, 1); |
| 2266 | |
| 2267 | rc = qpnp_chg_masked_write(chip, |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 2268 | chip->usb_chgpth_base + CHGR_USB_ENUM_T_STOP, |
| 2269 | ENUM_T_STOP_BIT, |
| 2270 | ENUM_T_STOP_BIT, 1); |
| 2271 | |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 2272 | rc = qpnp_chg_masked_write(chip, |
| 2273 | chip->usb_chgpth_base + SEC_ACCESS, |
| 2274 | 0xFF, |
| 2275 | 0xA5, 1); |
| 2276 | |
| 2277 | rc = qpnp_chg_masked_write(chip, |
| 2278 | chip->usb_chgpth_base + USB_CHG_GONE_REV_BST, |
| 2279 | 0xFF, |
| 2280 | 0x80, 1); |
| 2281 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2282 | break; |
| 2283 | case SMBB_DC_CHGPTH_SUBTYPE: |
| 2284 | break; |
| 2285 | case SMBB_BOOST_SUBTYPE: |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2286 | case SMBBP_BOOST_SUBTYPE: |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 2287 | init_data = of_get_regulator_init_data(chip->dev, |
| 2288 | spmi_resource->of_node); |
| 2289 | if (!init_data) { |
| 2290 | pr_err("unable to allocate memory\n"); |
| 2291 | return -ENOMEM; |
| 2292 | } |
| 2293 | |
| 2294 | if (init_data->constraints.name) { |
| 2295 | if (of_get_property(chip->dev->of_node, |
| 2296 | "boost-parent-supply", NULL)) |
| 2297 | init_data->supply_regulator = "boost-parent"; |
| 2298 | |
| 2299 | rdesc = &(chip->boost_vreg.rdesc); |
| 2300 | rdesc->owner = THIS_MODULE; |
| 2301 | rdesc->type = REGULATOR_VOLTAGE; |
| 2302 | rdesc->ops = &qpnp_chg_boost_reg_ops; |
| 2303 | rdesc->name = init_data->constraints.name; |
| 2304 | |
| 2305 | init_data->constraints.valid_ops_mask |
| 2306 | |= REGULATOR_CHANGE_STATUS |
| 2307 | | REGULATOR_CHANGE_VOLTAGE; |
| 2308 | |
| 2309 | chip->boost_vreg.rdev = regulator_register(rdesc, |
| 2310 | chip->dev, init_data, chip, |
| 2311 | spmi_resource->of_node); |
| 2312 | if (IS_ERR(chip->boost_vreg.rdev)) { |
| 2313 | rc = PTR_ERR(chip->boost_vreg.rdev); |
| 2314 | if (rc != -EPROBE_DEFER) |
| 2315 | pr_err("boost reg failed, rc=%d\n", rc); |
| 2316 | return rc; |
| 2317 | } |
| 2318 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2319 | break; |
| 2320 | case SMBB_MISC_SUBTYPE: |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2321 | case SMBBP_MISC_SUBTYPE: |
David Keitel | 46c9f7b | 2013-04-02 19:54:12 -0700 | [diff] [blame] | 2322 | case SMBCL_MISC_SUBTYPE: |
David Keitel | 52d685e | 2013-05-02 11:59:05 -0700 | [diff] [blame] | 2323 | if (subtype == SMBB_MISC_SUBTYPE) |
| 2324 | chip->type = SMBB; |
| 2325 | else if (subtype == SMBBP_MISC_SUBTYPE) |
| 2326 | chip->type = SMBBP; |
| 2327 | else if (subtype == SMBCL_MISC_SUBTYPE) |
| 2328 | chip->type = SMBCL; |
| 2329 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2330 | pr_debug("Setting BOOT_DONE\n"); |
| 2331 | rc = qpnp_chg_masked_write(chip, |
| 2332 | chip->misc_base + CHGR_MISC_BOOT_DONE, |
| 2333 | CHGR_BOOT_DONE, CHGR_BOOT_DONE, 1); |
Sridhar Parasuram | ae183bd | 2012-12-21 09:28:46 -0800 | [diff] [blame] | 2334 | rc = qpnp_chg_read(chip, ®, |
| 2335 | chip->misc_base + MISC_REVISION2, 1); |
| 2336 | if (rc) { |
| 2337 | pr_err("failed to read revision register rc=%d\n", rc); |
| 2338 | return rc; |
| 2339 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2340 | |
Sridhar Parasuram | ae183bd | 2012-12-21 09:28:46 -0800 | [diff] [blame] | 2341 | chip->revision = reg; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2342 | break; |
| 2343 | default: |
| 2344 | pr_err("Invalid peripheral subtype\n"); |
| 2345 | } |
| 2346 | return rc; |
| 2347 | } |
| 2348 | |
David Keitel | 112ba9c | 2013-04-12 18:40:43 -0700 | [diff] [blame] | 2349 | #define OF_PROP_READ(chip, prop, qpnp_dt_property, retval, optional) \ |
| 2350 | do { \ |
| 2351 | if (retval) \ |
| 2352 | break; \ |
| 2353 | \ |
| 2354 | retval = of_property_read_u32(chip->spmi->dev.of_node, \ |
| 2355 | "qcom," qpnp_dt_property, \ |
| 2356 | &chip->prop); \ |
| 2357 | \ |
| 2358 | if ((retval == -EINVAL) && optional) \ |
| 2359 | retval = 0; \ |
| 2360 | else if (retval) \ |
| 2361 | pr_err("Error reading " #qpnp_dt_property \ |
| 2362 | " property rc = %d\n", rc); \ |
| 2363 | } while (0) |
| 2364 | |
| 2365 | static int |
| 2366 | qpnp_charger_read_dt_props(struct qpnp_chg_chip *chip) |
| 2367 | { |
| 2368 | int rc = 0; |
David Keitel | 796882d | 2013-05-14 18:01:11 -0700 | [diff] [blame] | 2369 | const char *bpd; |
David Keitel | 112ba9c | 2013-04-12 18:40:43 -0700 | [diff] [blame] | 2370 | |
| 2371 | OF_PROP_READ(chip, max_voltage_mv, "vddmax-mv", rc, 0); |
| 2372 | OF_PROP_READ(chip, min_voltage_mv, "vinmin-mv", rc, 0); |
| 2373 | OF_PROP_READ(chip, safe_voltage_mv, "vddsafe-mv", rc, 0); |
| 2374 | OF_PROP_READ(chip, resume_delta_mv, "vbatdet-delta-mv", rc, 0); |
| 2375 | OF_PROP_READ(chip, safe_current, "ibatsafe-ma", rc, 0); |
| 2376 | OF_PROP_READ(chip, max_bat_chg_current, "ibatmax-ma", rc, 0); |
| 2377 | if (rc) |
| 2378 | pr_err("failed to read required dt parameters %d\n", rc); |
| 2379 | |
| 2380 | OF_PROP_READ(chip, term_current, "ibatterm-ma", rc, 1); |
| 2381 | OF_PROP_READ(chip, maxinput_dc_ma, "maxinput-dc-ma", rc, 1); |
| 2382 | OF_PROP_READ(chip, maxinput_usb_ma, "maxinput-usb-ma", rc, 1); |
| 2383 | OF_PROP_READ(chip, warm_bat_decidegc, "warm-bat-decidegc", rc, 1); |
| 2384 | OF_PROP_READ(chip, cool_bat_decidegc, "cool-bat-decidegc", rc, 1); |
David Keitel | a4b7b59 | 2013-04-11 18:34:35 -0700 | [diff] [blame] | 2385 | OF_PROP_READ(chip, tchg_mins, "tchg-mins", rc, 1); |
David Keitel | 112ba9c | 2013-04-12 18:40:43 -0700 | [diff] [blame] | 2386 | if (rc) |
| 2387 | return rc; |
| 2388 | |
David Keitel | 796882d | 2013-05-14 18:01:11 -0700 | [diff] [blame] | 2389 | rc = of_property_read_string(chip->spmi->dev.of_node, |
| 2390 | "qcom,bpd-detection", &bpd); |
| 2391 | if (rc) { |
| 2392 | pr_debug("no bpd-detection specified, ignored\n"); |
| 2393 | } else { |
| 2394 | chip->bpd_detection = get_bpd(bpd); |
| 2395 | if (chip->bpd_detection < 0) { |
| 2396 | pr_err("failed to determine bpd schema %d\n", rc); |
| 2397 | return rc; |
| 2398 | } |
| 2399 | } |
| 2400 | |
David Keitel | 112ba9c | 2013-04-12 18:40:43 -0700 | [diff] [blame] | 2401 | /* Look up JEITA compliance parameters if cool and warm temp provided */ |
| 2402 | if (chip->cool_bat_decidegc && chip->warm_bat_decidegc) { |
| 2403 | rc = qpnp_adc_tm_is_ready(); |
| 2404 | if (rc) { |
| 2405 | pr_err("tm not ready %d\n", rc); |
| 2406 | return rc; |
| 2407 | } |
| 2408 | |
| 2409 | OF_PROP_READ(chip, warm_bat_chg_ma, "ibatmax-warm-ma", rc, 1); |
| 2410 | OF_PROP_READ(chip, cool_bat_chg_ma, "ibatmax-cool-ma", rc, 1); |
| 2411 | OF_PROP_READ(chip, warm_bat_mv, "warm-bat-mv", rc, 1); |
| 2412 | OF_PROP_READ(chip, cool_bat_mv, "cool-bat-mv", rc, 1); |
| 2413 | if (rc) |
| 2414 | return rc; |
| 2415 | } |
| 2416 | |
| 2417 | /* Get the charging-disabled property */ |
| 2418 | chip->charging_disabled = of_property_read_bool(chip->spmi->dev.of_node, |
| 2419 | "qcom,charging-disabled"); |
| 2420 | |
David Keitel | 8b68d2d | 2013-05-14 23:36:51 -0700 | [diff] [blame] | 2421 | /* Get the duty-cycle-100p property */ |
| 2422 | chip->duty_cycle_100p = of_property_read_bool( |
| 2423 | chip->spmi->dev.of_node, |
| 2424 | "qcom,duty-cycle-100p"); |
| 2425 | if (chip->duty_cycle_100p) { |
| 2426 | rc = qpnp_buck_set_100_duty_cycle_enable(chip, 1); |
| 2427 | if (rc) { |
| 2428 | pr_err("failed to enable duty cycle %d\n", rc); |
| 2429 | return rc; |
| 2430 | } |
| 2431 | } |
| 2432 | |
David Keitel | 112ba9c | 2013-04-12 18:40:43 -0700 | [diff] [blame] | 2433 | /* Get the fake-batt-values property */ |
| 2434 | chip->use_default_batt_values = |
| 2435 | of_property_read_bool(chip->spmi->dev.of_node, |
| 2436 | "qcom,use-default-batt-values"); |
| 2437 | |
| 2438 | /* Disable charging when faking battery values */ |
| 2439 | if (chip->use_default_batt_values) |
| 2440 | chip->charging_disabled = true; |
| 2441 | |
| 2442 | of_get_property(chip->spmi->dev.of_node, "qcom,thermal-mitigation", |
| 2443 | &(chip->thermal_levels)); |
| 2444 | |
| 2445 | if (chip->thermal_levels > sizeof(int)) { |
| 2446 | chip->thermal_mitigation = kzalloc( |
| 2447 | chip->thermal_levels, |
| 2448 | GFP_KERNEL); |
| 2449 | |
| 2450 | if (chip->thermal_mitigation == NULL) { |
| 2451 | pr_err("thermal mitigation kzalloc() failed.\n"); |
| 2452 | return rc; |
| 2453 | } |
| 2454 | |
| 2455 | chip->thermal_levels /= sizeof(int); |
| 2456 | rc = of_property_read_u32_array(chip->spmi->dev.of_node, |
| 2457 | "qcom,thermal-mitigation", |
| 2458 | chip->thermal_mitigation, chip->thermal_levels); |
| 2459 | if (rc) { |
| 2460 | pr_err("qcom,thermal-mitigation missing in dt\n"); |
| 2461 | return rc; |
| 2462 | } |
| 2463 | } |
| 2464 | |
| 2465 | return rc; |
| 2466 | } |
| 2467 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2468 | static int __devinit |
| 2469 | qpnp_charger_probe(struct spmi_device *spmi) |
| 2470 | { |
| 2471 | u8 subtype; |
| 2472 | struct qpnp_chg_chip *chip; |
| 2473 | struct resource *resource; |
| 2474 | struct spmi_resource *spmi_resource; |
| 2475 | int rc = 0; |
| 2476 | |
| 2477 | chip = kzalloc(sizeof *chip, GFP_KERNEL); |
| 2478 | if (chip == NULL) { |
| 2479 | pr_err("kzalloc() failed.\n"); |
| 2480 | return -ENOMEM; |
| 2481 | } |
| 2482 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2483 | chip->dev = &(spmi->dev); |
| 2484 | chip->spmi = spmi; |
| 2485 | |
| 2486 | chip->usb_psy = power_supply_get_by_name("usb"); |
| 2487 | if (!chip->usb_psy) { |
| 2488 | pr_err("usb supply not found deferring probe\n"); |
| 2489 | rc = -EPROBE_DEFER; |
| 2490 | goto fail_chg_enable; |
| 2491 | } |
| 2492 | |
David Keitel | 112ba9c | 2013-04-12 18:40:43 -0700 | [diff] [blame] | 2493 | /* Get all device tree properties */ |
| 2494 | rc = qpnp_charger_read_dt_props(chip); |
| 2495 | if (rc) |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2496 | goto fail_chg_enable; |
David Keitel | 3dd5e0f | 2012-12-12 18:12:36 -0800 | [diff] [blame] | 2497 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2498 | spmi_for_each_container_dev(spmi_resource, spmi) { |
| 2499 | if (!spmi_resource) { |
| 2500 | pr_err("qpnp_chg: spmi resource absent\n"); |
| 2501 | rc = -ENXIO; |
| 2502 | goto fail_chg_enable; |
| 2503 | } |
| 2504 | |
| 2505 | resource = spmi_get_resource(spmi, spmi_resource, |
| 2506 | IORESOURCE_MEM, 0); |
| 2507 | if (!(resource && resource->start)) { |
| 2508 | pr_err("node %s IO resource absent!\n", |
| 2509 | spmi->dev.of_node->full_name); |
| 2510 | rc = -ENXIO; |
| 2511 | goto fail_chg_enable; |
| 2512 | } |
| 2513 | |
| 2514 | rc = qpnp_chg_read(chip, &subtype, |
| 2515 | resource->start + REG_OFFSET_PERP_SUBTYPE, 1); |
| 2516 | if (rc) { |
| 2517 | pr_err("Peripheral subtype read failed rc=%d\n", rc); |
| 2518 | goto fail_chg_enable; |
| 2519 | } |
| 2520 | |
| 2521 | switch (subtype) { |
| 2522 | case SMBB_CHGR_SUBTYPE: |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2523 | case SMBBP_CHGR_SUBTYPE: |
David Keitel | 46c9f7b | 2013-04-02 19:54:12 -0700 | [diff] [blame] | 2524 | case SMBCL_CHGR_SUBTYPE: |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2525 | chip->chgr_base = resource->start; |
| 2526 | rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); |
| 2527 | if (rc) { |
| 2528 | pr_err("Failed to init subtype 0x%x rc=%d\n", |
| 2529 | subtype, rc); |
| 2530 | goto fail_chg_enable; |
| 2531 | } |
| 2532 | break; |
| 2533 | case SMBB_BUCK_SUBTYPE: |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2534 | case SMBBP_BUCK_SUBTYPE: |
David Keitel | 46c9f7b | 2013-04-02 19:54:12 -0700 | [diff] [blame] | 2535 | case SMBCL_BUCK_SUBTYPE: |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2536 | chip->buck_base = resource->start; |
| 2537 | rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); |
| 2538 | if (rc) { |
| 2539 | pr_err("Failed to init subtype 0x%x rc=%d\n", |
| 2540 | subtype, rc); |
| 2541 | goto fail_chg_enable; |
| 2542 | } |
David Keitel | 344c697 | 2013-04-09 19:28:21 -0700 | [diff] [blame] | 2543 | |
| 2544 | rc = qpnp_chg_masked_write(chip, |
| 2545 | chip->buck_base + SEC_ACCESS, |
| 2546 | 0xFF, |
| 2547 | 0xA5, 1); |
| 2548 | |
| 2549 | rc = qpnp_chg_masked_write(chip, |
| 2550 | chip->buck_base + BUCK_VCHG_OV, |
| 2551 | 0xff, |
| 2552 | 0x00, 1); |
| 2553 | |
| 2554 | rc = qpnp_chg_masked_write(chip, |
| 2555 | chip->buck_base + SEC_ACCESS, |
| 2556 | 0xFF, |
| 2557 | 0xA5, 1); |
| 2558 | |
| 2559 | rc = qpnp_chg_masked_write(chip, |
| 2560 | chip->buck_base + BUCK_TEST_SMBC_MODES, |
| 2561 | 0xFF, |
| 2562 | 0x80, 1); |
| 2563 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2564 | break; |
| 2565 | case SMBB_BAT_IF_SUBTYPE: |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2566 | case SMBBP_BAT_IF_SUBTYPE: |
David Keitel | 46c9f7b | 2013-04-02 19:54:12 -0700 | [diff] [blame] | 2567 | case SMBCL_BAT_IF_SUBTYPE: |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2568 | chip->bat_if_base = resource->start; |
| 2569 | rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); |
| 2570 | if (rc) { |
| 2571 | pr_err("Failed to init subtype 0x%x rc=%d\n", |
| 2572 | subtype, rc); |
| 2573 | goto fail_chg_enable; |
| 2574 | } |
| 2575 | break; |
| 2576 | case SMBB_USB_CHGPTH_SUBTYPE: |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2577 | case SMBBP_USB_CHGPTH_SUBTYPE: |
David Keitel | 46c9f7b | 2013-04-02 19:54:12 -0700 | [diff] [blame] | 2578 | case SMBCL_USB_CHGPTH_SUBTYPE: |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2579 | chip->usb_chgpth_base = resource->start; |
| 2580 | rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); |
| 2581 | if (rc) { |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 2582 | if (rc != -EPROBE_DEFER) |
| 2583 | pr_err("Failed to init subtype 0x%x rc=%d\n", |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2584 | subtype, rc); |
| 2585 | goto fail_chg_enable; |
| 2586 | } |
| 2587 | break; |
| 2588 | case SMBB_DC_CHGPTH_SUBTYPE: |
| 2589 | chip->dc_chgpth_base = resource->start; |
| 2590 | rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); |
| 2591 | if (rc) { |
| 2592 | pr_err("Failed to init subtype 0x%x rc=%d\n", |
| 2593 | subtype, rc); |
| 2594 | goto fail_chg_enable; |
| 2595 | } |
| 2596 | break; |
| 2597 | case SMBB_BOOST_SUBTYPE: |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2598 | case SMBBP_BOOST_SUBTYPE: |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2599 | chip->boost_base = resource->start; |
| 2600 | rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); |
| 2601 | if (rc) { |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 2602 | if (rc != -EPROBE_DEFER) |
| 2603 | pr_err("Failed to init subtype 0x%x rc=%d\n", |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2604 | subtype, rc); |
| 2605 | goto fail_chg_enable; |
| 2606 | } |
| 2607 | break; |
| 2608 | case SMBB_MISC_SUBTYPE: |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2609 | case SMBBP_MISC_SUBTYPE: |
David Keitel | 46c9f7b | 2013-04-02 19:54:12 -0700 | [diff] [blame] | 2610 | case SMBCL_MISC_SUBTYPE: |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2611 | chip->misc_base = resource->start; |
| 2612 | rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); |
| 2613 | if (rc) { |
| 2614 | pr_err("Failed to init subtype=0x%x rc=%d\n", |
| 2615 | subtype, rc); |
| 2616 | goto fail_chg_enable; |
| 2617 | } |
| 2618 | break; |
| 2619 | default: |
| 2620 | pr_err("Invalid peripheral subtype=0x%x\n", subtype); |
| 2621 | rc = -EINVAL; |
| 2622 | goto fail_chg_enable; |
| 2623 | } |
| 2624 | } |
| 2625 | dev_set_drvdata(&spmi->dev, chip); |
| 2626 | device_init_wakeup(&spmi->dev, 1); |
| 2627 | |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2628 | if (chip->bat_if_base) { |
| 2629 | rc = qpnp_vadc_is_ready(); |
| 2630 | if (rc) |
| 2631 | goto fail_chg_enable; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2632 | |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2633 | chip->batt_psy.name = "battery"; |
| 2634 | chip->batt_psy.type = POWER_SUPPLY_TYPE_BATTERY; |
| 2635 | chip->batt_psy.properties = msm_batt_power_props; |
| 2636 | chip->batt_psy.num_properties = |
| 2637 | ARRAY_SIZE(msm_batt_power_props); |
| 2638 | chip->batt_psy.get_property = qpnp_batt_power_get_property; |
| 2639 | chip->batt_psy.set_property = qpnp_batt_power_set_property; |
| 2640 | chip->batt_psy.property_is_writeable = |
| 2641 | qpnp_batt_property_is_writeable; |
| 2642 | chip->batt_psy.external_power_changed = |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2643 | qpnp_batt_external_power_changed; |
Xiaozhe Shi | 890fbf4 | 2013-05-02 16:42:53 -0700 | [diff] [blame] | 2644 | chip->batt_psy.supplied_to = pm_batt_supplied_to; |
| 2645 | chip->batt_psy.num_supplicants = |
| 2646 | ARRAY_SIZE(pm_batt_supplied_to); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2647 | |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2648 | rc = power_supply_register(chip->dev, &chip->batt_psy); |
| 2649 | if (rc < 0) { |
| 2650 | pr_err("batt failed to register rc = %d\n", rc); |
| 2651 | goto fail_chg_enable; |
| 2652 | } |
David Keitel | 79f4c93 | 2013-04-03 16:08:39 -0700 | [diff] [blame] | 2653 | INIT_WORK(&chip->adc_measure_work, |
| 2654 | qpnp_bat_if_adc_measure_work); |
David Keitel | c7093b0 | 2013-02-14 12:50:04 -0800 | [diff] [blame] | 2655 | } |
| 2656 | |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 2657 | wake_lock_init(&chip->eoc_wake_lock, |
| 2658 | WAKE_LOCK_SUSPEND, "qpnp-chg-eoc-lock"); |
| 2659 | INIT_DELAYED_WORK(&chip->eoc_work, qpnp_eoc_work); |
David Keitel | 5910eea | 2013-05-02 15:32:25 -0700 | [diff] [blame] | 2660 | INIT_DELAYED_WORK(&chip->arb_stop_work, qpnp_arb_stop_work); |
| 2661 | |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2662 | if (chip->dc_chgpth_base) { |
| 2663 | chip->dc_psy.name = "qpnp-dc"; |
| 2664 | chip->dc_psy.type = POWER_SUPPLY_TYPE_MAINS; |
| 2665 | chip->dc_psy.supplied_to = pm_power_supplied_to; |
| 2666 | chip->dc_psy.num_supplicants = ARRAY_SIZE(pm_power_supplied_to); |
| 2667 | chip->dc_psy.properties = pm_power_props_mains; |
| 2668 | chip->dc_psy.num_properties = ARRAY_SIZE(pm_power_props_mains); |
| 2669 | chip->dc_psy.get_property = qpnp_power_get_property_mains; |
| 2670 | |
| 2671 | rc = power_supply_register(chip->dev, &chip->dc_psy); |
| 2672 | if (rc < 0) { |
| 2673 | pr_err("power_supply_register dc failed rc=%d\n", rc); |
| 2674 | goto unregister_batt; |
| 2675 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2676 | } |
| 2677 | |
Sridhar Parasuram | ae183bd | 2012-12-21 09:28:46 -0800 | [diff] [blame] | 2678 | /* Turn on appropriate workaround flags */ |
| 2679 | qpnp_chg_setup_flags(chip); |
| 2680 | |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2681 | if (chip->maxinput_dc_ma && chip->dc_chgpth_base) { |
David Keitel | 22ed223 | 2013-01-28 11:04:07 -0800 | [diff] [blame] | 2682 | rc = qpnp_chg_idcmax_set(chip, chip->maxinput_dc_ma); |
| 2683 | if (rc) { |
| 2684 | pr_err("Error setting idcmax property %d\n", rc); |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2685 | goto unregister_batt; |
David Keitel | 22ed223 | 2013-01-28 11:04:07 -0800 | [diff] [blame] | 2686 | } |
| 2687 | } |
| 2688 | |
David Keitel | 0c1a453 | 2013-03-21 16:39:06 -0700 | [diff] [blame] | 2689 | if (chip->cool_bat_decidegc && chip->warm_bat_decidegc) { |
| 2690 | chip->adc_param.low_temp = chip->cool_bat_decidegc; |
| 2691 | chip->adc_param.high_temp = chip->warm_bat_decidegc; |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 2692 | chip->adc_param.timer_interval = ADC_MEAS2_INTERVAL_1S; |
| 2693 | chip->adc_param.state_request = ADC_TM_HIGH_LOW_THR_ENABLE; |
| 2694 | chip->adc_param.btm_ctx = chip; |
| 2695 | chip->adc_param.threshold_notification = |
| 2696 | qpnp_chg_adc_notification; |
Siddartha Mohanadoss | a3e3551 | 2013-02-22 17:06:07 -0800 | [diff] [blame] | 2697 | chip->adc_param.channel = LR_MUX1_BATT_THERM; |
David Keitel | 0c1a453 | 2013-03-21 16:39:06 -0700 | [diff] [blame] | 2698 | |
| 2699 | if (get_prop_batt_present(chip)) { |
| 2700 | rc = qpnp_adc_tm_channel_measure(&chip->adc_param); |
| 2701 | if (rc) { |
| 2702 | pr_err("request ADC error %d\n", rc); |
| 2703 | goto fail_chg_enable; |
| 2704 | } |
David Keitel | 454ee84 | 2013-03-08 16:19:11 -0800 | [diff] [blame] | 2705 | } |
| 2706 | } |
| 2707 | |
David Keitel | 03ee6b5 | 2012-10-22 12:25:19 -0700 | [diff] [blame] | 2708 | qpnp_chg_charge_en(chip, !chip->charging_disabled); |
David Keitel | b1ddb74 | 2012-11-06 19:05:51 -0800 | [diff] [blame] | 2709 | qpnp_chg_force_run_on_batt(chip, chip->charging_disabled); |
David Keitel | bf35904 | 2012-10-19 16:54:58 -0700 | [diff] [blame] | 2710 | |
David Keitel | 0f35be4 | 2013-04-16 11:10:40 -0700 | [diff] [blame] | 2711 | rc = qpnp_chg_request_irqs(chip); |
| 2712 | if (rc) { |
| 2713 | pr_err("failed to request interrupts %d\n", rc); |
| 2714 | goto unregister_batt; |
| 2715 | } |
| 2716 | |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 2717 | qpnp_chg_usb_usbin_valid_irq_handler(USBIN_VALID_IRQ, chip); |
| 2718 | power_supply_set_present(chip->usb_psy, |
| 2719 | qpnp_chg_is_usb_chg_plugged_in(chip)); |
| 2720 | |
David Keitel | 3c62b47 | 2013-05-06 15:38:11 -0700 | [diff] [blame] | 2721 | /* Set USB psy online to avoid userspace from shutting down if battery |
| 2722 | * capacity is at zero and no chargers online. */ |
| 2723 | if (qpnp_chg_is_usb_chg_plugged_in(chip)) |
| 2724 | power_supply_set_online(chip->usb_psy, 1); |
| 2725 | |
David Keitel | 796882d | 2013-05-14 18:01:11 -0700 | [diff] [blame] | 2726 | pr_info("success chg_dis = %d, bpd = %d, usb = %d, dc = %d b_health = %d batt_present = %d\n", |
Abhijeet Dharmapurikar | 2d996b1 | 2013-01-03 17:48:02 -0800 | [diff] [blame] | 2727 | chip->charging_disabled, |
David Keitel | 796882d | 2013-05-14 18:01:11 -0700 | [diff] [blame] | 2728 | chip->bpd_detection, |
Abhijeet Dharmapurikar | 2d996b1 | 2013-01-03 17:48:02 -0800 | [diff] [blame] | 2729 | qpnp_chg_is_usb_chg_plugged_in(chip), |
| 2730 | qpnp_chg_is_dc_chg_plugged_in(chip), |
| 2731 | get_prop_batt_present(chip), |
| 2732 | get_prop_batt_health(chip)); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2733 | return 0; |
| 2734 | |
David Keitel | c7093b0 | 2013-02-14 12:50:04 -0800 | [diff] [blame] | 2735 | unregister_batt: |
David Keitel | f2170cc | 2013-02-20 17:49:03 -0800 | [diff] [blame] | 2736 | if (chip->bat_if_base) |
| 2737 | power_supply_unregister(&chip->batt_psy); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2738 | fail_chg_enable: |
David Keitel | be20825 | 2013-01-31 14:49:25 -0800 | [diff] [blame] | 2739 | kfree(chip->thermal_mitigation); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2740 | kfree(chip); |
| 2741 | dev_set_drvdata(&spmi->dev, NULL); |
| 2742 | return rc; |
| 2743 | } |
| 2744 | |
| 2745 | static int __devexit |
| 2746 | qpnp_charger_remove(struct spmi_device *spmi) |
| 2747 | { |
| 2748 | struct qpnp_chg_chip *chip = dev_get_drvdata(&spmi->dev); |
David Keitel | 0c1a453 | 2013-03-21 16:39:06 -0700 | [diff] [blame] | 2749 | if (chip->cool_bat_decidegc && chip->warm_bat_decidegc |
| 2750 | && chip->batt_present) { |
| 2751 | qpnp_adc_tm_disable_chan_meas(&chip->adc_param); |
| 2752 | } |
David Keitel | 79f4c93 | 2013-04-03 16:08:39 -0700 | [diff] [blame] | 2753 | cancel_work_sync(&chip->adc_measure_work); |
David Keitel | 9fd0738 | 2013-05-02 15:37:44 -0700 | [diff] [blame] | 2754 | cancel_delayed_work_sync(&chip->eoc_work); |
David Keitel | 79f4c93 | 2013-04-03 16:08:39 -0700 | [diff] [blame] | 2755 | |
David Keitel | 6dc4ed4 | 2013-05-17 11:08:58 -0700 | [diff] [blame^] | 2756 | if (chip->otg_vreg.rdev) |
| 2757 | regulator_unregister(chip->otg_vreg.rdev); |
| 2758 | |
| 2759 | if (chip->boost_vreg.rdev) |
| 2760 | regulator_unregister(chip->boost_vreg.rdev); |
| 2761 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2762 | dev_set_drvdata(&spmi->dev, NULL); |
| 2763 | kfree(chip); |
| 2764 | |
| 2765 | return 0; |
| 2766 | } |
| 2767 | |
David Keitel | 85ae434 | 2013-04-16 11:46:00 -0700 | [diff] [blame] | 2768 | static int qpnp_chg_resume(struct device *dev) |
| 2769 | { |
| 2770 | struct qpnp_chg_chip *chip = dev_get_drvdata(dev); |
| 2771 | int rc = 0; |
| 2772 | |
| 2773 | rc = qpnp_chg_masked_write(chip, |
| 2774 | chip->bat_if_base + BAT_IF_VREF_BAT_THM_CTRL, |
| 2775 | VREF_BATT_THERM_FORCE_ON, |
| 2776 | VREF_BATT_THERM_FORCE_ON, 1); |
| 2777 | if (rc) |
| 2778 | pr_debug("failed to force on VREF_BAT_THM rc=%d\n", rc); |
| 2779 | |
| 2780 | return rc; |
| 2781 | } |
| 2782 | |
| 2783 | static int qpnp_chg_suspend(struct device *dev) |
| 2784 | { |
| 2785 | struct qpnp_chg_chip *chip = dev_get_drvdata(dev); |
| 2786 | int rc = 0; |
| 2787 | |
| 2788 | rc = qpnp_chg_masked_write(chip, |
| 2789 | chip->bat_if_base + BAT_IF_VREF_BAT_THM_CTRL, |
| 2790 | VREF_BATT_THERM_FORCE_ON, |
| 2791 | VREF_BAT_THM_ENABLED_FSM, 1); |
| 2792 | if (rc) |
| 2793 | pr_debug("failed to enable FSM ctrl VREF_BAT_THM rc=%d\n", rc); |
| 2794 | |
| 2795 | return rc; |
| 2796 | } |
| 2797 | |
David Keitel | 723d501 | 2013-05-03 13:17:27 -0700 | [diff] [blame] | 2798 | static const struct dev_pm_ops qpnp_chg_pm_ops = { |
David Keitel | 85ae434 | 2013-04-16 11:46:00 -0700 | [diff] [blame] | 2799 | .resume = qpnp_chg_resume, |
| 2800 | .suspend = qpnp_chg_suspend, |
| 2801 | }; |
| 2802 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2803 | static struct spmi_driver qpnp_charger_driver = { |
| 2804 | .probe = qpnp_charger_probe, |
| 2805 | .remove = __devexit_p(qpnp_charger_remove), |
| 2806 | .driver = { |
David Keitel | 723d501 | 2013-05-03 13:17:27 -0700 | [diff] [blame] | 2807 | .name = QPNP_CHARGER_DEV_NAME, |
| 2808 | .owner = THIS_MODULE, |
| 2809 | .of_match_table = qpnp_charger_match_table, |
| 2810 | .pm = &qpnp_chg_pm_ops, |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 2811 | }, |
| 2812 | }; |
| 2813 | |
| 2814 | /** |
| 2815 | * qpnp_chg_init() - register spmi driver for qpnp-chg |
| 2816 | */ |
| 2817 | int __init |
| 2818 | qpnp_chg_init(void) |
| 2819 | { |
| 2820 | return spmi_driver_register(&qpnp_charger_driver); |
| 2821 | } |
| 2822 | module_init(qpnp_chg_init); |
| 2823 | |
| 2824 | static void __exit |
| 2825 | qpnp_chg_exit(void) |
| 2826 | { |
| 2827 | spmi_driver_unregister(&qpnp_charger_driver); |
| 2828 | } |
| 2829 | module_exit(qpnp_chg_exit); |
| 2830 | |
| 2831 | |
| 2832 | MODULE_DESCRIPTION("QPNP charger driver"); |
| 2833 | MODULE_LICENSE("GPL v2"); |
| 2834 | MODULE_ALIAS("platform:" QPNP_CHARGER_DEV_NAME); |