David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1 | /* Copyright (c) 2012 The Linux Foundation. All rights reserved. |
| 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> |
| 27 | |
| 28 | /* Interrupt offsets */ |
| 29 | #define INT_RT_STS(base) (base + 0x10) |
| 30 | #define INT_SET_TYPE(base) (base + 0x11) |
| 31 | #define INT_POLARITY_HIGH(base) (base + 0x12) |
| 32 | #define INT_POLARITY_LOW(base) (base + 0x13) |
| 33 | #define INT_LATCHED_CLR(base) (base + 0x14) |
| 34 | #define INT_EN_SET(base) (base + 0x15) |
| 35 | #define INT_EN_CLR(base) (base + 0x16) |
| 36 | #define INT_LATCHED_STS(base) (base + 0x18) |
| 37 | #define INT_PENDING_STS(base) (base + 0x19) |
| 38 | #define INT_MID_SEL(base) (base + 0x1A) |
| 39 | #define INT_PRIORITY(base) (base + 0x1B) |
| 40 | |
| 41 | /* Peripheral register offsets */ |
| 42 | #define CHGR_CHG_OPTION 0x08 |
| 43 | #define CHGR_ATC_STATUS 0x0A |
| 44 | #define CHGR_VBAT_STATUS 0x0B |
| 45 | #define CHGR_IBAT_BMS 0x0C |
| 46 | #define CHGR_IBAT_STS 0x0D |
| 47 | #define CHGR_VDD_MAX 0x40 |
| 48 | #define CHGR_VDD_SAFE 0x41 |
| 49 | #define CHGR_VDD_MAX_STEP 0x42 |
| 50 | #define CHGR_IBAT_MAX 0x44 |
| 51 | #define CHGR_IBAT_SAFE 0x45 |
| 52 | #define CHGR_VIN_MIN 0x47 |
| 53 | #define CHGR_VIN_MIN_STEP 0x48 |
| 54 | #define CHGR_CHG_CTRL 0x49 |
| 55 | #define CHGR_CHG_FAILED 0x4A |
| 56 | #define CHGR_ATC_CTRL 0x4B |
| 57 | #define CHGR_ATC_FAILED 0x4C |
| 58 | #define CHGR_VBAT_TRKL 0x50 |
| 59 | #define CHGR_VBAT_WEAK 0x52 |
| 60 | #define CHGR_IBAT_ATC_A 0x54 |
| 61 | #define CHGR_IBAT_ATC_B 0x55 |
| 62 | #define CHGR_IBAT_TERM_CHGR 0x5B |
| 63 | #define CHGR_IBAT_TERM_BMS 0x5C |
| 64 | #define CHGR_VBAT_DET 0x5D |
| 65 | #define CHGR_TTRKL_MAX 0x5F |
| 66 | #define CHGR_TTRKL_MAX_EN 0x60 |
| 67 | #define CHGR_TCHG_MAX 0x61 |
| 68 | #define CHGR_CHG_WDOG_TIME 0x62 |
| 69 | #define CHGR_CHG_WDOG_DLY 0x63 |
| 70 | #define CHGR_CHG_WDOG_PET 0x64 |
| 71 | #define CHGR_CHG_WDOG_EN 0x65 |
| 72 | #define CHGR_USB_IUSB_MAX 0x44 |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 73 | #define CHGR_USB_USB_SUSP 0x47 |
David Keitel | 6f865cd | 2012-11-30 15:04:32 -0800 | [diff] [blame] | 74 | #define CHGR_USB_USB_OTG_CTL 0x48 |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 75 | #define CHGR_USB_ENUM_T_STOP 0x4E |
| 76 | #define CHGR_CHG_TEMP_THRESH 0x66 |
| 77 | #define CHGR_BAT_IF_PRES_STATUS 0x08 |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 78 | #define CHGR_STATUS 0x09 |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 79 | #define CHGR_BAT_IF_VCP 0x42 |
| 80 | #define CHGR_BAT_IF_BATFET_CTRL1 0x90 |
| 81 | #define CHGR_MISC_BOOT_DONE 0x42 |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 82 | #define CHGR_BUCK_COMPARATOR_OVRIDE_3 0xED |
Sridhar Parasuram | ae183bd | 2012-12-21 09:28:46 -0800 | [diff] [blame^] | 83 | #define MISC_REVISION2 0x01 |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 84 | #define SEC_ACCESS 0xD0 |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 85 | |
| 86 | /* SMBB peripheral subtype values */ |
| 87 | #define REG_OFFSET_PERP_SUBTYPE 0x05 |
| 88 | #define SMBB_CHGR_SUBTYPE 0x01 |
| 89 | #define SMBB_BUCK_SUBTYPE 0x02 |
| 90 | #define SMBB_BAT_IF_SUBTYPE 0x03 |
| 91 | #define SMBB_USB_CHGPTH_SUBTYPE 0x04 |
| 92 | #define SMBB_DC_CHGPTH_SUBTYPE 0x05 |
| 93 | #define SMBB_BOOST_SUBTYPE 0x06 |
| 94 | #define SMBB_MISC_SUBTYPE 0x07 |
| 95 | |
| 96 | #define QPNP_CHARGER_DEV_NAME "qcom,qpnp-charger" |
| 97 | |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 98 | /* Status bits and masks */ |
| 99 | #define CHGR_BOOT_DONE BIT(7) |
| 100 | #define CHGR_CHG_EN BIT(7) |
| 101 | #define CHGR_ON_BAT_FORCE_BIT BIT(0) |
| 102 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 103 | /* Interrupt definitions */ |
| 104 | /* smbb_chg_interrupts */ |
| 105 | #define CHG_DONE_IRQ BIT(7) |
| 106 | #define CHG_FAILED_IRQ BIT(6) |
| 107 | #define FAST_CHG_ON_IRQ BIT(5) |
| 108 | #define TRKL_CHG_ON_IRQ BIT(4) |
| 109 | #define STATE_CHANGE_ON_IR BIT(3) |
| 110 | #define CHGWDDOG_IRQ BIT(2) |
| 111 | #define VBAT_DET_HI_IRQ BIT(1) |
| 112 | #define VBAT_DET_LOW_IRQ BIT(0) |
| 113 | |
| 114 | /* smbb_buck_interrupts */ |
| 115 | #define VDD_LOOP_IRQ BIT(6) |
| 116 | #define IBAT_LOOP_IRQ BIT(5) |
| 117 | #define ICHG_LOOP_IRQ BIT(4) |
| 118 | #define VCHG_LOOP_IRQ BIT(3) |
| 119 | #define OVERTEMP_IRQ BIT(2) |
| 120 | #define VREF_OV_IRQ BIT(1) |
| 121 | #define VBAT_OV_IRQ BIT(0) |
| 122 | |
| 123 | /* smbb_bat_if_interrupts */ |
| 124 | #define PSI_IRQ BIT(4) |
| 125 | #define VCP_ON_IRQ BIT(3) |
| 126 | #define BAT_FET_ON_IRQ BIT(2) |
| 127 | #define BAT_TEMP_OK_IRQ BIT(1) |
| 128 | #define BATT_PRES_IRQ BIT(0) |
| 129 | |
| 130 | /* smbb_usb_interrupts */ |
| 131 | #define CHG_GONE_IRQ BIT(2) |
| 132 | #define USBIN_VALID_IRQ BIT(1) |
| 133 | #define COARSE_DET_USB_IRQ BIT(0) |
| 134 | |
| 135 | /* smbb_dc_interrupts */ |
| 136 | #define DCIN_VALID_IRQ BIT(1) |
| 137 | #define COARSE_DET_DC_IRQ BIT(0) |
| 138 | |
| 139 | /* smbb_boost_interrupts */ |
| 140 | #define LIMIT_ERROR_IRQ BIT(1) |
| 141 | #define BOOST_PWR_OK_IRQ BIT(0) |
| 142 | |
| 143 | /* smbb_misc_interrupts */ |
| 144 | #define TFTWDOG_IRQ BIT(0) |
| 145 | |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 146 | /* Workaround flags */ |
| 147 | #define CHG_FLAGS_VCP_WA BIT(0) |
| 148 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 149 | /** |
| 150 | * struct qpnp_chg_chip - device information |
| 151 | * @dev: device pointer to access the parent |
| 152 | * @spmi: spmi pointer to access spmi information |
| 153 | * @chgr_base: charger peripheral base address |
| 154 | * @buck_base: buck peripheral base address |
| 155 | * @bat_if_base: battery interface peripheral base address |
| 156 | * @usb_chgpth_base: USB charge path peripheral base address |
| 157 | * @dc_chgpth_base: DC charge path peripheral base address |
| 158 | * @boost_base: boost peripheral base address |
| 159 | * @misc_base: misc peripheral base address |
| 160 | * @freq_base: freq peripheral base address |
| 161 | * @chg_done: indicates that charging is completed |
| 162 | * @usb_present: present status of usb |
| 163 | * @dc_present: present status of dc |
David Keitel | 3dd5e0f | 2012-12-12 18:12:36 -0800 | [diff] [blame] | 164 | * @use_default_batt_values: flag to report default battery properties |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 165 | * @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] | 166 | * @min_voltage_mv: min battery voltage before turning the FET on |
| 167 | * @resume_voltage_mv: voltage at which the battery resumes charging |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 168 | * @term_current: the charging based term current |
David Keitel | 5d44fa5 | 2012-12-03 16:37:31 -0800 | [diff] [blame] | 169 | * @safe_current: battery safety current setting |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 170 | * @revision: PMIC revision |
| 171 | * @dc_psy power supply to export information to userspace |
| 172 | * @usb_psy power supply to export information to userspace |
| 173 | * @bms_psy power supply to export information to userspace |
| 174 | * @batt_psy: power supply to export information to userspace |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 175 | * @flags: flags to activate specific workarounds |
| 176 | * throughout the driver |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 177 | * |
| 178 | */ |
| 179 | struct qpnp_chg_chip { |
| 180 | struct device *dev; |
| 181 | struct spmi_device *spmi; |
| 182 | u16 chgr_base; |
| 183 | u16 buck_base; |
| 184 | u16 bat_if_base; |
| 185 | u16 usb_chgpth_base; |
| 186 | u16 dc_chgpth_base; |
| 187 | u16 boost_base; |
| 188 | u16 misc_base; |
| 189 | u16 freq_base; |
| 190 | unsigned int usbin_valid_irq; |
| 191 | unsigned int chg_done_irq; |
| 192 | unsigned int chg_failed_irq; |
| 193 | bool chg_done; |
| 194 | bool usb_present; |
| 195 | bool dc_present; |
David Keitel | 03ee6b5 | 2012-10-22 12:25:19 -0700 | [diff] [blame] | 196 | bool charging_disabled; |
David Keitel | 3dd5e0f | 2012-12-12 18:12:36 -0800 | [diff] [blame] | 197 | bool use_default_batt_values; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 198 | unsigned int max_bat_chg_current; |
| 199 | unsigned int safe_voltage_mv; |
| 200 | unsigned int max_voltage_mv; |
| 201 | unsigned int min_voltage_mv; |
David Keitel | 5d44fa5 | 2012-12-03 16:37:31 -0800 | [diff] [blame] | 202 | unsigned int resume_voltage_mv; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 203 | unsigned int term_current; |
David Keitel | 5d44fa5 | 2012-12-03 16:37:31 -0800 | [diff] [blame] | 204 | unsigned int safe_current; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 205 | unsigned int revision; |
| 206 | struct power_supply dc_psy; |
| 207 | struct power_supply *usb_psy; |
| 208 | struct power_supply *bms_psy; |
| 209 | struct power_supply batt_psy; |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 210 | uint32_t flags; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 211 | }; |
| 212 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 213 | static struct of_device_id qpnp_charger_match_table[] = { |
| 214 | { .compatible = QPNP_CHARGER_DEV_NAME, }, |
| 215 | {} |
| 216 | }; |
| 217 | |
| 218 | static int |
| 219 | qpnp_chg_read(struct qpnp_chg_chip *chip, u8 *val, |
| 220 | u16 base, int count) |
| 221 | { |
| 222 | int rc; |
| 223 | struct spmi_device *spmi = chip->spmi; |
| 224 | |
| 225 | rc = spmi_ext_register_readl(spmi->ctrl, spmi->sid, base, val, |
| 226 | count); |
| 227 | if (rc) { |
| 228 | pr_err("SPMI read failed base=0x%02x sid=0x%02x rc=%d\n", base, |
| 229 | spmi->sid, rc); |
| 230 | return rc; |
| 231 | } |
| 232 | return 0; |
| 233 | } |
| 234 | |
| 235 | static int |
| 236 | qpnp_chg_write(struct qpnp_chg_chip *chip, u8 *val, |
| 237 | u16 base, int count) |
| 238 | { |
| 239 | int rc; |
| 240 | struct spmi_device *spmi = chip->spmi; |
| 241 | |
| 242 | rc = spmi_ext_register_writel(spmi->ctrl, spmi->sid, base, val, |
| 243 | count); |
| 244 | if (rc) { |
| 245 | pr_err("write failed base=0x%02x sid=0x%02x rc=%d\n", |
| 246 | base, spmi->sid, rc); |
| 247 | return rc; |
| 248 | } |
| 249 | |
| 250 | return 0; |
| 251 | } |
| 252 | |
| 253 | static int |
| 254 | qpnp_chg_masked_write(struct qpnp_chg_chip *chip, u16 base, |
| 255 | u8 mask, u8 val, int count) |
| 256 | { |
| 257 | int rc; |
| 258 | u8 reg; |
| 259 | |
| 260 | rc = qpnp_chg_read(chip, ®, base, count); |
| 261 | if (rc) { |
| 262 | pr_err("spmi read failed: addr=%03X, rc=%d\n", base, rc); |
| 263 | return rc; |
| 264 | } |
| 265 | pr_debug("addr = 0x%x read 0x%x\n", base, reg); |
| 266 | |
| 267 | reg &= ~mask; |
| 268 | reg |= val & mask; |
| 269 | |
| 270 | pr_debug("Writing 0x%x\n", reg); |
| 271 | |
| 272 | rc = qpnp_chg_write(chip, ®, base, count); |
| 273 | if (rc) { |
| 274 | pr_err("spmi write failed: addr=%03X, rc=%d\n", base, rc); |
| 275 | return rc; |
| 276 | } |
| 277 | |
| 278 | return 0; |
| 279 | } |
| 280 | |
David Keitel | 6f865cd | 2012-11-30 15:04:32 -0800 | [diff] [blame] | 281 | #define USB_OTG_EN_BIT BIT(0) |
| 282 | static int |
| 283 | qpnp_chg_is_otg_en_set(struct qpnp_chg_chip *chip) |
| 284 | { |
| 285 | u8 usb_otg_en; |
| 286 | int rc; |
| 287 | |
| 288 | rc = qpnp_chg_read(chip, &usb_otg_en, |
| 289 | chip->usb_chgpth_base + CHGR_USB_USB_OTG_CTL, |
| 290 | 1); |
| 291 | |
| 292 | if (rc) { |
| 293 | pr_err("spmi read failed: addr=%03X, rc=%d\n", |
| 294 | chip->usb_chgpth_base + CHGR_STATUS, rc); |
| 295 | return rc; |
| 296 | } |
| 297 | pr_debug("usb otg en 0x%x\n", usb_otg_en); |
| 298 | |
| 299 | return (usb_otg_en & USB_OTG_EN_BIT) ? 1 : 0; |
| 300 | } |
| 301 | |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 302 | #define USB_VALID_BIT BIT(7) |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 303 | static int |
| 304 | qpnp_chg_is_usb_chg_plugged_in(struct qpnp_chg_chip *chip) |
| 305 | { |
| 306 | u8 usbin_valid_rt_sts; |
| 307 | int rc; |
| 308 | |
| 309 | rc = qpnp_chg_read(chip, &usbin_valid_rt_sts, |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 310 | chip->usb_chgpth_base + CHGR_STATUS , 1); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 311 | |
| 312 | if (rc) { |
| 313 | pr_err("spmi read failed: addr=%03X, rc=%d\n", |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 314 | chip->usb_chgpth_base + CHGR_STATUS, rc); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 315 | return rc; |
| 316 | } |
| 317 | pr_debug("chgr usb sts 0x%x\n", usbin_valid_rt_sts); |
| 318 | |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 319 | return (usbin_valid_rt_sts & USB_VALID_BIT) ? 1 : 0; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 320 | } |
| 321 | |
| 322 | static int |
| 323 | qpnp_chg_is_dc_chg_plugged_in(struct qpnp_chg_chip *chip) |
| 324 | { |
| 325 | u8 dcin_valid_rt_sts; |
| 326 | int rc; |
| 327 | |
| 328 | rc = qpnp_chg_read(chip, &dcin_valid_rt_sts, |
| 329 | INT_RT_STS(chip->dc_chgpth_base), 1); |
| 330 | if (rc) { |
| 331 | pr_err("spmi read failed: addr=%03X, rc=%d\n", |
| 332 | INT_RT_STS(chip->dc_chgpth_base), rc); |
| 333 | return rc; |
| 334 | } |
| 335 | |
| 336 | return (dcin_valid_rt_sts & DCIN_VALID_IRQ) ? 1 : 0; |
| 337 | } |
| 338 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 339 | #define QPNP_CHG_IUSB_MAX_MIN_100 100 |
| 340 | #define QPNP_CHG_IUSB_MAX_MIN_150 150 |
| 341 | #define QPNP_CHG_IUSB_MAX_MIN_MA 200 |
| 342 | #define QPNP_CHG_IUSB_MAX_MAX_MA 2500 |
| 343 | #define QPNP_CHG_IUSB_MAX_STEP_MA 100 |
| 344 | static int |
| 345 | qpnp_chg_iusbmax_set(struct qpnp_chg_chip *chip, int mA) |
| 346 | { |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 347 | int rc = 0; |
| 348 | u8 usb_reg = 0, temp = 8; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 349 | |
| 350 | if (mA == QPNP_CHG_IUSB_MAX_MIN_100) { |
| 351 | usb_reg = 0x00; |
| 352 | pr_debug("current=%d setting %02x\n", mA, usb_reg); |
| 353 | return qpnp_chg_write(chip, &usb_reg, |
| 354 | chip->usb_chgpth_base + CHGR_USB_IUSB_MAX, 1); |
| 355 | } else if (mA == QPNP_CHG_IUSB_MAX_MIN_150) { |
| 356 | usb_reg = 0x01; |
| 357 | pr_debug("current=%d setting %02x\n", mA, usb_reg); |
| 358 | return qpnp_chg_write(chip, &usb_reg, |
| 359 | chip->usb_chgpth_base + CHGR_USB_IUSB_MAX, 1); |
| 360 | } |
| 361 | |
| 362 | if (mA < QPNP_CHG_IUSB_MAX_MIN_MA |
| 363 | || mA > QPNP_CHG_IUSB_MAX_MAX_MA) { |
| 364 | pr_err("bad mA=%d asked to set\n", mA); |
| 365 | return -EINVAL; |
| 366 | } |
| 367 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 368 | usb_reg = mA / QPNP_CHG_IUSB_MAX_STEP_MA; |
| 369 | |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 370 | if (chip->flags & CHG_FLAGS_VCP_WA) { |
| 371 | temp = 0xA5; |
| 372 | rc = qpnp_chg_write(chip, &temp, |
| 373 | chip->buck_base + SEC_ACCESS, 1); |
| 374 | rc = qpnp_chg_masked_write(chip, |
| 375 | chip->buck_base + CHGR_BUCK_COMPARATOR_OVRIDE_3, |
| 376 | 0x0C, 0x0C, 1); |
| 377 | } |
| 378 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 379 | pr_debug("current=%d setting 0x%x\n", mA, usb_reg); |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 380 | rc = qpnp_chg_write(chip, &usb_reg, |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 381 | chip->usb_chgpth_base + CHGR_USB_IUSB_MAX, 1); |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 382 | |
| 383 | if (chip->flags & CHG_FLAGS_VCP_WA) { |
| 384 | temp = 0xA5; |
| 385 | udelay(200); |
| 386 | rc = qpnp_chg_write(chip, &temp, |
| 387 | chip->buck_base + SEC_ACCESS, 1); |
| 388 | rc = qpnp_chg_masked_write(chip, |
| 389 | chip->buck_base + CHGR_BUCK_COMPARATOR_OVRIDE_3, |
| 390 | 0x0C, 0x00, 1); |
| 391 | } |
| 392 | |
| 393 | return rc; |
| 394 | } |
| 395 | |
| 396 | #define USB_SUSPEND_BIT BIT(0) |
| 397 | static int |
| 398 | qpnp_chg_usb_suspend_enable(struct qpnp_chg_chip *chip, int enable) |
| 399 | { |
| 400 | return qpnp_chg_masked_write(chip, |
| 401 | chip->usb_chgpth_base + CHGR_USB_USB_SUSP, |
| 402 | USB_SUSPEND_BIT, |
| 403 | enable ? USB_SUSPEND_BIT : 0, 1); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 404 | } |
| 405 | |
| 406 | #define ENUM_T_STOP_BIT BIT(0) |
| 407 | static irqreturn_t |
| 408 | qpnp_chg_usb_usbin_valid_irq_handler(int irq, void *_chip) |
| 409 | { |
| 410 | struct qpnp_chg_chip *chip = _chip; |
David Keitel | 6f865cd | 2012-11-30 15:04:32 -0800 | [diff] [blame] | 411 | int usb_present, host_mode; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 412 | |
| 413 | usb_present = qpnp_chg_is_usb_chg_plugged_in(chip); |
David Keitel | 6f865cd | 2012-11-30 15:04:32 -0800 | [diff] [blame] | 414 | host_mode = qpnp_chg_is_otg_en_set(chip); |
| 415 | pr_debug("usbin-valid triggered: %d host_mode: %d\n", |
| 416 | usb_present, host_mode); |
| 417 | |
| 418 | /* In host mode notifications cmoe from USB supply */ |
| 419 | if (host_mode) |
| 420 | return IRQ_HANDLED; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 421 | |
| 422 | if (chip->usb_present ^ usb_present) { |
| 423 | chip->usb_present = usb_present; |
Sridhar Parasuram | ae183bd | 2012-12-21 09:28:46 -0800 | [diff] [blame^] | 424 | power_supply_set_present(chip->usb_psy, |
| 425 | chip->usb_present); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 426 | } |
| 427 | |
| 428 | return IRQ_HANDLED; |
| 429 | } |
| 430 | |
| 431 | #define CHGR_CHG_FAILED_BIT BIT(7) |
| 432 | static irqreturn_t |
| 433 | qpnp_chg_chgr_chg_failed_irq_handler(int irq, void *_chip) |
| 434 | { |
| 435 | struct qpnp_chg_chip *chip = _chip; |
David Keitel | 4429b1f | 2012-10-18 10:42:50 -0700 | [diff] [blame] | 436 | int rc; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 437 | |
| 438 | rc = qpnp_chg_masked_write(chip, |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 439 | chip->chgr_base + CHGR_CHG_FAILED, |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 440 | CHGR_CHG_FAILED_BIT, |
| 441 | CHGR_CHG_FAILED_BIT, 1); |
| 442 | if (rc) |
| 443 | pr_err("Failed to write chg_fail clear bit!\n"); |
| 444 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 445 | return IRQ_HANDLED; |
| 446 | } |
| 447 | |
| 448 | static irqreturn_t |
| 449 | qpnp_chg_chgr_chg_done_irq_handler(int irq, void *_chip) |
| 450 | { |
| 451 | struct qpnp_chg_chip *chip = _chip; |
| 452 | |
| 453 | pr_debug("CHG_DONE IRQ triggered\n"); |
| 454 | chip->chg_done = true; |
| 455 | |
| 456 | return IRQ_HANDLED; |
| 457 | } |
| 458 | |
David Keitel | 03ee6b5 | 2012-10-22 12:25:19 -0700 | [diff] [blame] | 459 | static int |
| 460 | qpnp_batt_property_is_writeable(struct power_supply *psy, |
| 461 | enum power_supply_property psp) |
| 462 | { |
| 463 | switch (psp) { |
| 464 | case POWER_SUPPLY_PROP_CHARGING_ENABLED: |
| 465 | return 1; |
| 466 | default: |
| 467 | break; |
| 468 | } |
| 469 | |
| 470 | return 0; |
| 471 | } |
| 472 | |
David Keitel | 6f865cd | 2012-11-30 15:04:32 -0800 | [diff] [blame] | 473 | static int |
| 474 | qpnp_chg_charge_en(struct qpnp_chg_chip *chip, int enable) |
| 475 | { |
| 476 | return qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_CHG_CTRL, |
| 477 | CHGR_CHG_EN, |
| 478 | enable ? CHGR_CHG_EN : 0, 1); |
| 479 | } |
| 480 | |
| 481 | static int |
| 482 | qpnp_chg_force_run_on_batt(struct qpnp_chg_chip *chip, int disable) |
| 483 | { |
| 484 | /* This bit forces the charger to run off of the battery rather |
| 485 | * than a connected charger */ |
| 486 | return qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_CHG_CTRL, |
| 487 | CHGR_ON_BAT_FORCE_BIT, |
| 488 | disable ? CHGR_ON_BAT_FORCE_BIT : 0, 1); |
| 489 | } |
| 490 | |
| 491 | static |
| 492 | int switch_usb_to_charge_mode(struct qpnp_chg_chip *chip) |
| 493 | { |
| 494 | int rc; |
| 495 | |
| 496 | pr_debug("switch to charge mode\n"); |
| 497 | if (!qpnp_chg_is_otg_en_set(chip)) |
| 498 | return 0; |
| 499 | |
| 500 | /* enable usb ovp fet */ |
| 501 | rc = qpnp_chg_masked_write(chip, |
| 502 | chip->usb_chgpth_base + CHGR_USB_USB_OTG_CTL, |
| 503 | USB_OTG_EN_BIT, |
| 504 | 0, 1); |
| 505 | if (rc) { |
| 506 | pr_err("Failed to turn on usb ovp rc = %d\n", rc); |
| 507 | return rc; |
| 508 | } |
| 509 | |
| 510 | rc = qpnp_chg_force_run_on_batt(chip, chip->charging_disabled); |
| 511 | if (rc) { |
| 512 | pr_err("Failed re-enable charging rc = %d\n", rc); |
| 513 | return rc; |
| 514 | } |
| 515 | |
| 516 | return 0; |
| 517 | } |
| 518 | |
| 519 | static |
| 520 | int switch_usb_to_host_mode(struct qpnp_chg_chip *chip) |
| 521 | { |
| 522 | int rc; |
| 523 | |
| 524 | pr_debug("switch to host mode\n"); |
| 525 | if (qpnp_chg_is_otg_en_set(chip)) |
| 526 | return 0; |
| 527 | |
| 528 | rc = qpnp_chg_force_run_on_batt(chip, 1); |
| 529 | if (rc) { |
| 530 | pr_err("Failed to disable charging rc = %d\n", rc); |
| 531 | return rc; |
| 532 | } |
| 533 | |
| 534 | /* force usb ovp fet off */ |
| 535 | rc = qpnp_chg_masked_write(chip, |
| 536 | chip->usb_chgpth_base + CHGR_USB_USB_OTG_CTL, |
| 537 | USB_OTG_EN_BIT, |
| 538 | USB_OTG_EN_BIT, 1); |
| 539 | if (rc) { |
| 540 | pr_err("Failed to turn off usb ovp rc = %d\n", rc); |
| 541 | return rc; |
| 542 | } |
| 543 | |
| 544 | return 0; |
| 545 | } |
| 546 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 547 | static enum power_supply_property pm_power_props_mains[] = { |
| 548 | POWER_SUPPLY_PROP_PRESENT, |
| 549 | POWER_SUPPLY_PROP_ONLINE, |
| 550 | }; |
| 551 | |
| 552 | static enum power_supply_property msm_batt_power_props[] = { |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 553 | POWER_SUPPLY_PROP_CHARGING_ENABLED, |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 554 | POWER_SUPPLY_PROP_STATUS, |
| 555 | POWER_SUPPLY_PROP_CHARGE_TYPE, |
| 556 | POWER_SUPPLY_PROP_HEALTH, |
| 557 | POWER_SUPPLY_PROP_PRESENT, |
| 558 | POWER_SUPPLY_PROP_TECHNOLOGY, |
| 559 | POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, |
| 560 | POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, |
| 561 | POWER_SUPPLY_PROP_VOLTAGE_NOW, |
| 562 | POWER_SUPPLY_PROP_CAPACITY, |
| 563 | POWER_SUPPLY_PROP_CURRENT_NOW, |
| 564 | POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, |
| 565 | POWER_SUPPLY_PROP_TEMP, |
| 566 | }; |
| 567 | |
| 568 | static char *pm_power_supplied_to[] = { |
| 569 | "battery", |
| 570 | }; |
| 571 | |
| 572 | #define USB_WALL_THRESHOLD_MA 500 |
| 573 | static int |
| 574 | qpnp_power_get_property_mains(struct power_supply *psy, |
| 575 | enum power_supply_property psp, |
| 576 | union power_supply_propval *val) |
| 577 | { |
| 578 | struct qpnp_chg_chip *chip = container_of(psy, struct qpnp_chg_chip, |
| 579 | dc_psy); |
| 580 | |
| 581 | switch (psp) { |
| 582 | case POWER_SUPPLY_PROP_PRESENT: |
| 583 | case POWER_SUPPLY_PROP_ONLINE: |
| 584 | val->intval = 0; |
David Keitel | 03ee6b5 | 2012-10-22 12:25:19 -0700 | [diff] [blame] | 585 | if (chip->charging_disabled) |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 586 | return 0; |
| 587 | |
| 588 | val->intval = qpnp_chg_is_dc_chg_plugged_in(chip); |
| 589 | break; |
| 590 | default: |
| 591 | return -EINVAL; |
| 592 | } |
| 593 | return 0; |
| 594 | } |
| 595 | |
| 596 | static int |
| 597 | get_prop_battery_voltage_now(struct qpnp_chg_chip *chip) |
| 598 | { |
| 599 | int rc = 0; |
| 600 | struct qpnp_vadc_result results; |
| 601 | |
| 602 | if (chip->revision > 0) { |
| 603 | rc = qpnp_vadc_read(VBAT_SNS, &results); |
| 604 | if (rc) { |
| 605 | pr_err("Unable to read vbat rc=%d\n", rc); |
| 606 | return 0; |
| 607 | } |
| 608 | return results.physical; |
| 609 | } else { |
| 610 | pr_err("vbat reading not supported for 1.0 rc=%d\n", rc); |
| 611 | return 0; |
| 612 | } |
| 613 | } |
| 614 | |
| 615 | #define BATT_PRES_BIT BIT(7) |
| 616 | static int |
| 617 | get_prop_batt_present(struct qpnp_chg_chip *chip) |
| 618 | { |
| 619 | u8 batt_present; |
| 620 | int rc; |
| 621 | |
| 622 | rc = qpnp_chg_read(chip, &batt_present, |
| 623 | chip->bat_if_base + CHGR_BAT_IF_PRES_STATUS, 1); |
| 624 | if (rc) { |
| 625 | pr_err("Couldn't read battery status read failed rc=%d\n", rc); |
| 626 | return 0; |
| 627 | }; |
| 628 | return (batt_present & BATT_PRES_BIT) ? 1 : 0; |
| 629 | } |
| 630 | |
| 631 | #define BATT_TEMP_HOT BIT(6) |
| 632 | #define BATT_TEMP_OK BIT(7) |
| 633 | static int |
| 634 | get_prop_batt_health(struct qpnp_chg_chip *chip) |
| 635 | { |
| 636 | u8 batt_health; |
| 637 | int rc; |
| 638 | |
| 639 | rc = qpnp_chg_read(chip, &batt_health, |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 640 | chip->bat_if_base + CHGR_STATUS, 1); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 641 | if (rc) { |
| 642 | pr_err("Couldn't read battery health read failed rc=%d\n", rc); |
| 643 | return POWER_SUPPLY_HEALTH_UNKNOWN; |
| 644 | }; |
| 645 | |
| 646 | if (BATT_TEMP_OK & batt_health) |
| 647 | return POWER_SUPPLY_HEALTH_GOOD; |
| 648 | if (BATT_TEMP_HOT & batt_health) |
| 649 | return POWER_SUPPLY_HEALTH_OVERHEAT; |
| 650 | else |
| 651 | return POWER_SUPPLY_HEALTH_COLD; |
| 652 | } |
| 653 | |
| 654 | static int |
| 655 | get_prop_charge_type(struct qpnp_chg_chip *chip) |
| 656 | { |
| 657 | int rc; |
| 658 | u8 chgr_sts; |
| 659 | |
| 660 | if (!get_prop_batt_present(chip)) |
| 661 | return POWER_SUPPLY_CHARGE_TYPE_NONE; |
| 662 | |
| 663 | rc = qpnp_chg_read(chip, &chgr_sts, |
| 664 | INT_RT_STS(chip->chgr_base), 1); |
| 665 | if (rc) { |
| 666 | pr_err("failed to read interrupt sts %d\n", rc); |
| 667 | return POWER_SUPPLY_CHARGE_TYPE_NONE; |
| 668 | } |
| 669 | |
| 670 | if (chgr_sts & TRKL_CHG_ON_IRQ) |
| 671 | return POWER_SUPPLY_CHARGE_TYPE_TRICKLE; |
| 672 | if (chgr_sts & FAST_CHG_ON_IRQ) |
| 673 | return POWER_SUPPLY_CHARGE_TYPE_FAST; |
| 674 | |
| 675 | return POWER_SUPPLY_CHARGE_TYPE_NONE; |
| 676 | } |
| 677 | |
| 678 | static int |
| 679 | get_prop_batt_status(struct qpnp_chg_chip *chip) |
| 680 | { |
| 681 | int rc; |
| 682 | u8 chgr_sts; |
| 683 | |
| 684 | rc = qpnp_chg_read(chip, &chgr_sts, |
| 685 | INT_RT_STS(chip->chgr_base), 1); |
| 686 | if (rc) { |
| 687 | pr_err("failed to read interrupt sts %d\n", rc); |
| 688 | return POWER_SUPPLY_STATUS_DISCHARGING; |
| 689 | } |
| 690 | |
| 691 | pr_debug("chgr sts 0x%x\n", chgr_sts); |
| 692 | if (chgr_sts & CHG_DONE_IRQ || chip->chg_done) |
| 693 | return POWER_SUPPLY_STATUS_FULL; |
| 694 | else |
| 695 | chip->chg_done = false; |
| 696 | |
| 697 | if (chgr_sts & TRKL_CHG_ON_IRQ) |
| 698 | return POWER_SUPPLY_STATUS_CHARGING; |
| 699 | if (chgr_sts & FAST_CHG_ON_IRQ) |
| 700 | return POWER_SUPPLY_STATUS_CHARGING; |
| 701 | |
| 702 | return POWER_SUPPLY_STATUS_DISCHARGING; |
| 703 | } |
| 704 | |
| 705 | static int |
| 706 | get_prop_current_now(struct qpnp_chg_chip *chip) |
| 707 | { |
| 708 | union power_supply_propval ret = {0,}; |
| 709 | |
| 710 | if (chip->bms_psy) { |
| 711 | chip->bms_psy->get_property(chip->bms_psy, |
| 712 | POWER_SUPPLY_PROP_CURRENT_NOW, &ret); |
| 713 | return ret.intval; |
| 714 | } else { |
| 715 | pr_debug("No BMS supply registered return 0\n"); |
| 716 | } |
| 717 | |
| 718 | return 0; |
| 719 | } |
| 720 | |
| 721 | static int |
| 722 | get_prop_full_design(struct qpnp_chg_chip *chip) |
| 723 | { |
| 724 | union power_supply_propval ret = {0,}; |
| 725 | |
| 726 | if (chip->bms_psy) { |
| 727 | chip->bms_psy->get_property(chip->bms_psy, |
| 728 | POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, &ret); |
| 729 | return ret.intval; |
| 730 | } else { |
| 731 | pr_debug("No BMS supply registered return 0\n"); |
| 732 | } |
| 733 | |
| 734 | return 0; |
| 735 | } |
| 736 | |
| 737 | #define DEFAULT_CAPACITY 50 |
| 738 | static int |
| 739 | get_prop_capacity(struct qpnp_chg_chip *chip) |
| 740 | { |
| 741 | union power_supply_propval ret = {0,}; |
| 742 | |
David Keitel | 3dd5e0f | 2012-12-12 18:12:36 -0800 | [diff] [blame] | 743 | if (chip->use_default_batt_values || !get_prop_batt_present(chip)) |
| 744 | return DEFAULT_CAPACITY; |
| 745 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 746 | if (chip->bms_psy) { |
| 747 | chip->bms_psy->get_property(chip->bms_psy, |
| 748 | POWER_SUPPLY_PROP_CAPACITY, &ret); |
| 749 | return ret.intval; |
| 750 | } else { |
| 751 | pr_debug("No BMS supply registered return 50\n"); |
| 752 | } |
| 753 | |
| 754 | /* return default capacity to avoid userspace |
| 755 | * from shutting down unecessarily */ |
| 756 | return DEFAULT_CAPACITY; |
| 757 | } |
| 758 | |
David Keitel | 3dd5e0f | 2012-12-12 18:12:36 -0800 | [diff] [blame] | 759 | #define DEFAULT_TEMP 250 |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 760 | #define MAX_TOLERABLE_BATT_TEMP_DDC 680 |
| 761 | static int |
| 762 | get_prop_batt_temp(struct qpnp_chg_chip *chip) |
| 763 | { |
| 764 | int rc = 0; |
| 765 | struct qpnp_vadc_result results; |
| 766 | |
David Keitel | 3dd5e0f | 2012-12-12 18:12:36 -0800 | [diff] [blame] | 767 | if (chip->use_default_batt_values || !get_prop_batt_present(chip)) |
| 768 | return DEFAULT_TEMP; |
| 769 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 770 | if (chip->revision > 0) { |
| 771 | rc = qpnp_vadc_read(LR_MUX1_BATT_THERM, &results); |
| 772 | if (rc) { |
| 773 | pr_debug("Unable to read batt temperature rc=%d\n", rc); |
| 774 | return 0; |
| 775 | } |
| 776 | pr_debug("get_bat_temp %d %lld\n", |
| 777 | results.adc_code, results.physical); |
| 778 | return (int)results.physical; |
| 779 | } else { |
| 780 | pr_debug("batt temp not supported for PMIC 1.0 rc=%d\n", rc); |
| 781 | } |
| 782 | |
| 783 | /* return default temperature to avoid userspace |
| 784 | * from shutting down unecessarily */ |
| 785 | return DEFAULT_TEMP; |
| 786 | } |
| 787 | |
| 788 | static void |
| 789 | qpnp_batt_external_power_changed(struct power_supply *psy) |
| 790 | { |
| 791 | struct qpnp_chg_chip *chip = container_of(psy, struct qpnp_chg_chip, |
| 792 | batt_psy); |
| 793 | union power_supply_propval ret = {0,}; |
| 794 | |
| 795 | if (!chip->bms_psy) |
| 796 | chip->bms_psy = power_supply_get_by_name("bms"); |
| 797 | |
| 798 | chip->usb_psy->get_property(chip->usb_psy, |
David Keitel | 6f865cd | 2012-11-30 15:04:32 -0800 | [diff] [blame] | 799 | POWER_SUPPLY_PROP_SCOPE, &ret); |
| 800 | if (ret.intval) { |
| 801 | if ((ret.intval == POWER_SUPPLY_SCOPE_SYSTEM) |
| 802 | && !qpnp_chg_is_otg_en_set(chip)) { |
| 803 | switch_usb_to_host_mode(chip); |
| 804 | return; |
| 805 | } |
| 806 | if ((ret.intval == POWER_SUPPLY_SCOPE_DEVICE) |
| 807 | && qpnp_chg_is_otg_en_set(chip)) { |
| 808 | switch_usb_to_charge_mode(chip); |
| 809 | return; |
| 810 | } |
| 811 | } |
| 812 | |
| 813 | chip->usb_psy->get_property(chip->usb_psy, |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 814 | POWER_SUPPLY_PROP_ONLINE, &ret); |
| 815 | |
| 816 | if (ret.intval && qpnp_chg_is_usb_chg_plugged_in(chip)) { |
| 817 | chip->usb_psy->get_property(chip->usb_psy, |
| 818 | POWER_SUPPLY_PROP_CURRENT_MAX, &ret); |
| 819 | qpnp_chg_iusbmax_set(chip, ret.intval / 1000); |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 820 | if ((ret.intval / 1000) <= QPNP_CHG_IUSB_MAX_MIN_MA) |
| 821 | qpnp_chg_usb_suspend_enable(chip, 1); |
| 822 | else |
| 823 | qpnp_chg_usb_suspend_enable(chip, 0); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 824 | } else { |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 825 | qpnp_chg_iusbmax_set(chip, QPNP_CHG_IUSB_MAX_MIN_100); |
| 826 | qpnp_chg_usb_suspend_enable(chip, 0); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 827 | } |
| 828 | |
| 829 | pr_debug("end of power supply changed\n"); |
| 830 | power_supply_changed(&chip->batt_psy); |
| 831 | } |
| 832 | |
| 833 | static int |
| 834 | qpnp_batt_power_get_property(struct power_supply *psy, |
| 835 | enum power_supply_property psp, |
| 836 | union power_supply_propval *val) |
| 837 | { |
| 838 | struct qpnp_chg_chip *chip = container_of(psy, struct qpnp_chg_chip, |
| 839 | batt_psy); |
| 840 | |
| 841 | switch (psp) { |
| 842 | case POWER_SUPPLY_PROP_STATUS: |
| 843 | val->intval = get_prop_batt_status(chip); |
| 844 | break; |
| 845 | case POWER_SUPPLY_PROP_CHARGE_TYPE: |
| 846 | val->intval = get_prop_charge_type(chip); |
| 847 | break; |
| 848 | case POWER_SUPPLY_PROP_HEALTH: |
| 849 | val->intval = get_prop_batt_health(chip); |
| 850 | break; |
| 851 | case POWER_SUPPLY_PROP_PRESENT: |
| 852 | val->intval = get_prop_batt_present(chip); |
| 853 | break; |
| 854 | case POWER_SUPPLY_PROP_TECHNOLOGY: |
| 855 | val->intval = POWER_SUPPLY_TECHNOLOGY_LION; |
| 856 | break; |
| 857 | case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: |
| 858 | val->intval = chip->max_voltage_mv * 1000; |
| 859 | break; |
| 860 | case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: |
| 861 | val->intval = chip->min_voltage_mv * 1000; |
| 862 | break; |
| 863 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: |
| 864 | val->intval = get_prop_battery_voltage_now(chip); |
| 865 | break; |
| 866 | case POWER_SUPPLY_PROP_TEMP: |
| 867 | val->intval = get_prop_batt_temp(chip); |
| 868 | break; |
| 869 | case POWER_SUPPLY_PROP_CAPACITY: |
| 870 | val->intval = get_prop_capacity(chip); |
| 871 | break; |
| 872 | case POWER_SUPPLY_PROP_CURRENT_NOW: |
| 873 | val->intval = get_prop_current_now(chip); |
| 874 | break; |
| 875 | case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: |
| 876 | val->intval = get_prop_full_design(chip); |
| 877 | break; |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 878 | case POWER_SUPPLY_PROP_CHARGING_ENABLED: |
David Keitel | 03ee6b5 | 2012-10-22 12:25:19 -0700 | [diff] [blame] | 879 | val->intval = !(chip->charging_disabled); |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 880 | break; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 881 | default: |
| 882 | return -EINVAL; |
| 883 | } |
| 884 | |
| 885 | return 0; |
| 886 | } |
| 887 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 888 | static int |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 889 | qpnp_batt_power_set_property(struct power_supply *psy, |
| 890 | enum power_supply_property psp, |
| 891 | const union power_supply_propval *val) |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 892 | { |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 893 | struct qpnp_chg_chip *chip = container_of(psy, struct qpnp_chg_chip, |
| 894 | batt_psy); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 895 | |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 896 | switch (psp) { |
| 897 | case POWER_SUPPLY_PROP_CHARGING_ENABLED: |
David Keitel | 03ee6b5 | 2012-10-22 12:25:19 -0700 | [diff] [blame] | 898 | chip->charging_disabled = !(val->intval); |
David Keitel | b1ddb74 | 2012-11-06 19:05:51 -0800 | [diff] [blame] | 899 | qpnp_chg_charge_en(chip, !chip->charging_disabled); |
| 900 | qpnp_chg_force_run_on_batt(chip, chip->charging_disabled); |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 901 | break; |
| 902 | default: |
| 903 | return -EINVAL; |
| 904 | } |
| 905 | |
| 906 | power_supply_changed(&chip->batt_psy); |
| 907 | return 0; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 908 | } |
| 909 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 910 | #define QPNP_CHG_VINMIN_MIN_MV 3400 |
| 911 | #define QPNP_CHG_VINMIN_HIGH_MIN_MV 5600 |
| 912 | #define QPNP_CHG_VINMIN_HIGH_MIN_VAL 0x2B |
| 913 | #define QPNP_CHG_VINMIN_MAX_MV 9600 |
| 914 | #define QPNP_CHG_VINMIN_STEP_MV 50 |
| 915 | #define QPNP_CHG_VINMIN_STEP_HIGH_MV 200 |
| 916 | #define QPNP_CHG_VINMIN_MASK 0x1F |
| 917 | static int |
| 918 | qpnp_chg_vinmin_set(struct qpnp_chg_chip *chip, int voltage) |
| 919 | { |
| 920 | u8 temp; |
| 921 | |
| 922 | if (voltage < QPNP_CHG_VINMIN_MIN_MV |
| 923 | || voltage > QPNP_CHG_VINMIN_MAX_MV) { |
| 924 | pr_err("bad mV=%d asked to set\n", voltage); |
| 925 | return -EINVAL; |
| 926 | } |
| 927 | if (voltage >= QPNP_CHG_VINMIN_HIGH_MIN_MV) { |
| 928 | temp = QPNP_CHG_VINMIN_HIGH_MIN_VAL; |
| 929 | temp += (voltage - QPNP_CHG_VINMIN_MIN_MV) |
| 930 | / QPNP_CHG_VINMIN_STEP_HIGH_MV; |
| 931 | } else { |
| 932 | temp = (voltage - QPNP_CHG_VINMIN_MIN_MV) |
| 933 | / QPNP_CHG_VINMIN_STEP_MV; |
| 934 | } |
| 935 | |
| 936 | pr_debug("voltage=%d setting %02x\n", voltage, temp); |
| 937 | return qpnp_chg_masked_write(chip, |
| 938 | chip->chgr_base + CHGR_VIN_MIN, |
| 939 | QPNP_CHG_VINMIN_MASK, temp, 1); |
| 940 | } |
| 941 | |
David Keitel | 5d44fa5 | 2012-12-03 16:37:31 -0800 | [diff] [blame] | 942 | #define QPNP_CHG_IBATSAFE_MIN_MA 100 |
| 943 | #define QPNP_CHG_IBATSAFE_MAX_MA 3250 |
| 944 | #define QPNP_CHG_I_STEP_MA 50 |
| 945 | #define QPNP_CHG_I_MIN_MA 100 |
| 946 | #define QPNP_CHG_I_MASK 0x3F |
| 947 | static int |
| 948 | qpnp_chg_ibatsafe_set(struct qpnp_chg_chip *chip, int safe_current) |
| 949 | { |
| 950 | u8 temp; |
| 951 | |
| 952 | if (safe_current < QPNP_CHG_IBATSAFE_MIN_MA |
| 953 | || safe_current > QPNP_CHG_IBATSAFE_MAX_MA) { |
| 954 | pr_err("bad mA=%d asked to set\n", safe_current); |
| 955 | return -EINVAL; |
| 956 | } |
| 957 | |
| 958 | temp = (safe_current - QPNP_CHG_IBATSAFE_MIN_MA) |
| 959 | / QPNP_CHG_I_STEP_MA; |
| 960 | return qpnp_chg_masked_write(chip, |
| 961 | chip->chgr_base + CHGR_IBAT_SAFE, |
| 962 | QPNP_CHG_I_MASK, temp, 1); |
| 963 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 964 | |
| 965 | #define QPNP_CHG_ITERM_MIN_MA 100 |
| 966 | #define QPNP_CHG_ITERM_MAX_MA 250 |
| 967 | #define QPNP_CHG_ITERM_STEP_MA 50 |
| 968 | #define QPNP_CHG_ITERM_MASK 0x03 |
| 969 | static int |
| 970 | qpnp_chg_ibatterm_set(struct qpnp_chg_chip *chip, int term_current) |
| 971 | { |
| 972 | u8 temp; |
| 973 | |
| 974 | if (term_current < QPNP_CHG_ITERM_MIN_MA |
| 975 | || term_current > QPNP_CHG_ITERM_MAX_MA) { |
| 976 | pr_err("bad mA=%d asked to set\n", term_current); |
| 977 | return -EINVAL; |
| 978 | } |
| 979 | |
| 980 | temp = (term_current - QPNP_CHG_ITERM_MIN_MA) |
| 981 | / QPNP_CHG_ITERM_STEP_MA; |
| 982 | return qpnp_chg_masked_write(chip, |
| 983 | chip->chgr_base + CHGR_IBAT_TERM_CHGR, |
| 984 | QPNP_CHG_ITERM_MASK, temp, 1); |
| 985 | } |
| 986 | |
| 987 | #define QPNP_CHG_IBATMAX_MIN 100 |
| 988 | #define QPNP_CHG_IBATMAX_MAX 3250 |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 989 | static int |
| 990 | qpnp_chg_ibatmax_set(struct qpnp_chg_chip *chip, int chg_current) |
| 991 | { |
| 992 | u8 temp; |
| 993 | |
| 994 | if (chg_current < QPNP_CHG_IBATMAX_MIN |
| 995 | || chg_current > QPNP_CHG_IBATMAX_MAX) { |
| 996 | pr_err("bad mA=%d asked to set\n", chg_current); |
| 997 | return -EINVAL; |
| 998 | } |
| 999 | temp = (chg_current - QPNP_CHG_I_MIN_MA) / QPNP_CHG_I_STEP_MA; |
| 1000 | return qpnp_chg_masked_write(chip, chip->chgr_base + CHGR_IBAT_MAX, |
| 1001 | QPNP_CHG_I_MASK, temp, 1); |
| 1002 | } |
| 1003 | |
David Keitel | 5d44fa5 | 2012-12-03 16:37:31 -0800 | [diff] [blame] | 1004 | #define QPNP_CHG_VBATDET_MIN_MV 3240 |
| 1005 | #define QPNP_CHG_VBATDET_MAX_MV 5780 |
| 1006 | #define QPNP_CHG_VBATDET_STEP_MV 20 |
| 1007 | static int |
| 1008 | qpnp_chg_vbatdet_set(struct qpnp_chg_chip *chip, int vbatdet_mv) |
| 1009 | { |
| 1010 | u8 temp; |
| 1011 | |
| 1012 | if (vbatdet_mv < QPNP_CHG_VBATDET_MIN_MV |
| 1013 | || vbatdet_mv > QPNP_CHG_VBATDET_MAX_MV) { |
| 1014 | pr_err("bad mV=%d asked to set\n", vbatdet_mv); |
| 1015 | return -EINVAL; |
| 1016 | } |
| 1017 | temp = (vbatdet_mv - QPNP_CHG_VBATDET_MIN_MV) |
| 1018 | / QPNP_CHG_VBATDET_STEP_MV; |
| 1019 | |
| 1020 | pr_debug("voltage=%d setting %02x\n", vbatdet_mv, temp); |
| 1021 | return qpnp_chg_write(chip, &temp, |
| 1022 | chip->chgr_base + CHGR_VBAT_DET, 1); |
| 1023 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1024 | |
| 1025 | #define QPNP_CHG_V_MIN_MV 3240 |
| 1026 | #define QPNP_CHG_V_MAX_MV 4500 |
| 1027 | #define QPNP_CHG_V_STEP_MV 10 |
| 1028 | static int |
| 1029 | qpnp_chg_vddsafe_set(struct qpnp_chg_chip *chip, int voltage) |
| 1030 | { |
| 1031 | u8 temp; |
| 1032 | |
| 1033 | if (voltage < QPNP_CHG_V_MIN_MV |
| 1034 | || voltage > QPNP_CHG_V_MAX_MV) { |
| 1035 | pr_err("bad mV=%d asked to set\n", voltage); |
| 1036 | return -EINVAL; |
| 1037 | } |
| 1038 | temp = (voltage - QPNP_CHG_V_MIN_MV) / QPNP_CHG_V_STEP_MV; |
| 1039 | pr_debug("voltage=%d setting %02x\n", voltage, temp); |
| 1040 | return qpnp_chg_write(chip, &temp, |
| 1041 | chip->chgr_base + CHGR_VDD_SAFE, 1); |
| 1042 | } |
| 1043 | |
| 1044 | #define QPNP_CHG_VDDMAX_MIN 3400 |
| 1045 | static int |
| 1046 | qpnp_chg_vddmax_set(struct qpnp_chg_chip *chip, int voltage) |
| 1047 | { |
| 1048 | u8 temp = 0; |
| 1049 | |
| 1050 | if (voltage < QPNP_CHG_VDDMAX_MIN |
| 1051 | || voltage > QPNP_CHG_V_MAX_MV) { |
| 1052 | pr_err("bad mV=%d asked to set\n", voltage); |
| 1053 | return -EINVAL; |
| 1054 | } |
| 1055 | |
| 1056 | temp = (voltage - QPNP_CHG_V_MIN_MV) / QPNP_CHG_V_STEP_MV; |
| 1057 | |
| 1058 | pr_debug("voltage=%d setting %02x\n", voltage, temp); |
Sridhar Parasuram | ae183bd | 2012-12-21 09:28:46 -0800 | [diff] [blame^] | 1059 | return qpnp_chg_write(chip, &temp, |
| 1060 | chip->chgr_base + CHGR_VDD_MAX, 1); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1061 | } |
| 1062 | |
Sridhar Parasuram | ae183bd | 2012-12-21 09:28:46 -0800 | [diff] [blame^] | 1063 | |
| 1064 | static void |
| 1065 | qpnp_chg_setup_flags(struct qpnp_chg_chip *chip) |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 1066 | { |
Sridhar Parasuram | ae183bd | 2012-12-21 09:28:46 -0800 | [diff] [blame^] | 1067 | if (chip->revision > 0) |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 1068 | chip->flags |= CHG_FLAGS_VCP_WA; |
| 1069 | } |
| 1070 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1071 | #define WDOG_EN_BIT BIT(7) |
| 1072 | static int |
| 1073 | qpnp_chg_hwinit(struct qpnp_chg_chip *chip, u8 subtype, |
| 1074 | struct spmi_resource *spmi_resource) |
| 1075 | { |
| 1076 | int rc = 0; |
Sridhar Parasuram | ae183bd | 2012-12-21 09:28:46 -0800 | [diff] [blame^] | 1077 | u8 reg; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1078 | |
| 1079 | switch (subtype) { |
| 1080 | case SMBB_CHGR_SUBTYPE: |
| 1081 | chip->chg_done_irq = spmi_get_irq_byname(chip->spmi, |
| 1082 | spmi_resource, "chg-done"); |
| 1083 | if (chip->chg_done_irq < 0) { |
| 1084 | pr_err("Unable to get chg_done irq\n"); |
| 1085 | return -ENXIO; |
| 1086 | } |
| 1087 | |
| 1088 | chip->chg_failed_irq = spmi_get_irq_byname(chip->spmi, |
| 1089 | spmi_resource, "chg-failed"); |
| 1090 | if (chip->chg_failed_irq < 0) { |
| 1091 | pr_err("Unable to get chg_failed irq\n"); |
| 1092 | return -ENXIO; |
| 1093 | } |
| 1094 | rc |= devm_request_irq(chip->dev, chip->chg_done_irq, |
| 1095 | qpnp_chg_chgr_chg_done_irq_handler, |
| 1096 | IRQF_TRIGGER_RISING, "chg_done", chip); |
| 1097 | if (rc < 0) { |
| 1098 | pr_err("Can't request %d chg_done for chg: %d\n", |
| 1099 | chip->chg_done_irq, rc); |
| 1100 | return -ENXIO; |
| 1101 | } |
| 1102 | rc |= devm_request_irq(chip->dev, chip->chg_failed_irq, |
| 1103 | qpnp_chg_chgr_chg_failed_irq_handler, |
| 1104 | IRQF_TRIGGER_RISING, "chg_failed", chip); |
| 1105 | if (rc < 0) { |
| 1106 | pr_err("Can't request %d chg_failed chg: %d\n", |
| 1107 | chip->chg_failed_irq, rc); |
| 1108 | return -ENXIO; |
| 1109 | } |
| 1110 | |
| 1111 | rc = qpnp_chg_vinmin_set(chip, chip->min_voltage_mv); |
| 1112 | if (rc) { |
| 1113 | pr_debug("failed setting min_voltage rc=%d\n", rc); |
| 1114 | return rc; |
| 1115 | } |
| 1116 | rc = qpnp_chg_vddmax_set(chip, chip->max_voltage_mv); |
| 1117 | if (rc) { |
| 1118 | pr_debug("failed setting max_voltage rc=%d\n", rc); |
| 1119 | return rc; |
| 1120 | } |
| 1121 | rc = qpnp_chg_vddsafe_set(chip, chip->safe_voltage_mv); |
| 1122 | if (rc) { |
| 1123 | pr_debug("failed setting safe_voltage rc=%d\n", rc); |
| 1124 | return rc; |
| 1125 | } |
David Keitel | 5d44fa5 | 2012-12-03 16:37:31 -0800 | [diff] [blame] | 1126 | rc = qpnp_chg_vbatdet_set(chip, chip->resume_voltage_mv); |
| 1127 | if (rc) { |
| 1128 | pr_debug("failed setting resume_voltage rc=%d\n", rc); |
| 1129 | return rc; |
| 1130 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1131 | rc = qpnp_chg_ibatmax_set(chip, chip->max_bat_chg_current); |
| 1132 | if (rc) { |
| 1133 | pr_debug("failed setting ibatmax rc=%d\n", rc); |
| 1134 | return rc; |
| 1135 | } |
| 1136 | rc = qpnp_chg_ibatterm_set(chip, chip->term_current); |
| 1137 | if (rc) { |
| 1138 | pr_debug("failed setting ibatterm rc=%d\n", rc); |
| 1139 | return rc; |
| 1140 | } |
David Keitel | 5d44fa5 | 2012-12-03 16:37:31 -0800 | [diff] [blame] | 1141 | rc = qpnp_chg_ibatsafe_set(chip, chip->safe_current); |
| 1142 | if (rc) { |
| 1143 | pr_debug("failed setting ibat_Safe rc=%d\n", rc); |
| 1144 | return rc; |
| 1145 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1146 | /* HACK: Disable wdog */ |
| 1147 | rc = qpnp_chg_masked_write(chip, chip->chgr_base + 0x62, |
| 1148 | 0xFF, 0xA0, 1); |
| 1149 | |
| 1150 | /* HACK: use analog EOC */ |
| 1151 | rc = qpnp_chg_masked_write(chip, chip->chgr_base + |
| 1152 | CHGR_IBAT_TERM_CHGR, |
| 1153 | 0x80, 0x80, 1); |
| 1154 | |
| 1155 | enable_irq_wake(chip->chg_done_irq); |
| 1156 | break; |
| 1157 | case SMBB_BUCK_SUBTYPE: |
| 1158 | break; |
| 1159 | case SMBB_BAT_IF_SUBTYPE: |
| 1160 | /* HACK: Unlock secure access to override temp comparator */ |
| 1161 | rc = qpnp_chg_masked_write(chip, |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 1162 | chip->bat_if_base + SEC_ACCESS, |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1163 | 0xA5, 0xA5, 1); |
| 1164 | pr_debug("override hot cold\n"); |
| 1165 | rc = qpnp_chg_masked_write(chip, |
| 1166 | chip->bat_if_base + 0xE5, |
| 1167 | 0xFF, 0x28, 1); |
| 1168 | break; |
| 1169 | case SMBB_USB_CHGPTH_SUBTYPE: |
| 1170 | chip->usbin_valid_irq = spmi_get_irq_byname(chip->spmi, |
| 1171 | spmi_resource, "usbin-valid"); |
| 1172 | if (chip->usbin_valid_irq < 0) { |
| 1173 | pr_err("Unable to get usbin irq\n"); |
| 1174 | return -ENXIO; |
| 1175 | } |
| 1176 | rc = devm_request_irq(chip->dev, chip->usbin_valid_irq, |
| 1177 | qpnp_chg_usb_usbin_valid_irq_handler, |
| 1178 | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, |
| 1179 | "chg_usbin_valid", chip); |
| 1180 | if (rc < 0) { |
| 1181 | pr_err("Can't request %d usbinvalid for chg: %d\n", |
| 1182 | chip->usbin_valid_irq, rc); |
| 1183 | return -ENXIO; |
| 1184 | } |
| 1185 | |
| 1186 | enable_irq_wake(chip->usbin_valid_irq); |
| 1187 | chip->usb_present = qpnp_chg_is_usb_chg_plugged_in(chip); |
| 1188 | if (chip->usb_present) { |
| 1189 | rc = qpnp_chg_masked_write(chip, |
| 1190 | chip->usb_chgpth_base + CHGR_USB_ENUM_T_STOP, |
| 1191 | ENUM_T_STOP_BIT, |
| 1192 | ENUM_T_STOP_BIT, 1); |
| 1193 | if (rc) { |
| 1194 | pr_err("failed to write enum stop rc=%d\n", rc); |
| 1195 | return -ENXIO; |
| 1196 | } |
| 1197 | } |
David Keitel | d681cda | 2012-10-02 15:44:21 -0700 | [diff] [blame] | 1198 | |
| 1199 | rc = qpnp_chg_masked_write(chip, |
| 1200 | chip->usb_chgpth_base + CHGR_USB_ENUM_T_STOP, |
| 1201 | ENUM_T_STOP_BIT, |
| 1202 | ENUM_T_STOP_BIT, 1); |
| 1203 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1204 | break; |
| 1205 | case SMBB_DC_CHGPTH_SUBTYPE: |
| 1206 | break; |
| 1207 | case SMBB_BOOST_SUBTYPE: |
| 1208 | break; |
| 1209 | case SMBB_MISC_SUBTYPE: |
| 1210 | pr_debug("Setting BOOT_DONE\n"); |
| 1211 | rc = qpnp_chg_masked_write(chip, |
| 1212 | chip->misc_base + CHGR_MISC_BOOT_DONE, |
| 1213 | CHGR_BOOT_DONE, CHGR_BOOT_DONE, 1); |
Sridhar Parasuram | ae183bd | 2012-12-21 09:28:46 -0800 | [diff] [blame^] | 1214 | rc = qpnp_chg_read(chip, ®, |
| 1215 | chip->misc_base + MISC_REVISION2, 1); |
| 1216 | if (rc) { |
| 1217 | pr_err("failed to read revision register rc=%d\n", rc); |
| 1218 | return rc; |
| 1219 | } |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1220 | |
Sridhar Parasuram | ae183bd | 2012-12-21 09:28:46 -0800 | [diff] [blame^] | 1221 | chip->revision = reg; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1222 | break; |
| 1223 | default: |
| 1224 | pr_err("Invalid peripheral subtype\n"); |
| 1225 | } |
| 1226 | return rc; |
| 1227 | } |
| 1228 | |
| 1229 | static int __devinit |
| 1230 | qpnp_charger_probe(struct spmi_device *spmi) |
| 1231 | { |
| 1232 | u8 subtype; |
| 1233 | struct qpnp_chg_chip *chip; |
| 1234 | struct resource *resource; |
| 1235 | struct spmi_resource *spmi_resource; |
| 1236 | int rc = 0; |
| 1237 | |
| 1238 | chip = kzalloc(sizeof *chip, GFP_KERNEL); |
| 1239 | if (chip == NULL) { |
| 1240 | pr_err("kzalloc() failed.\n"); |
| 1241 | return -ENOMEM; |
| 1242 | } |
| 1243 | |
| 1244 | rc = qpnp_vadc_is_ready(); |
| 1245 | if (rc) |
| 1246 | goto fail_chg_enable; |
| 1247 | |
| 1248 | chip->dev = &(spmi->dev); |
| 1249 | chip->spmi = spmi; |
| 1250 | |
| 1251 | chip->usb_psy = power_supply_get_by_name("usb"); |
| 1252 | if (!chip->usb_psy) { |
| 1253 | pr_err("usb supply not found deferring probe\n"); |
| 1254 | rc = -EPROBE_DEFER; |
| 1255 | goto fail_chg_enable; |
| 1256 | } |
| 1257 | |
| 1258 | /* Get the vddmax property */ |
| 1259 | rc = of_property_read_u32(spmi->dev.of_node, "qcom,chg-vddmax-mv", |
| 1260 | &chip->max_voltage_mv); |
| 1261 | if (rc && rc != -EINVAL) { |
| 1262 | pr_err("Error reading vddmax property %d\n", rc); |
| 1263 | goto fail_chg_enable; |
| 1264 | } |
| 1265 | |
| 1266 | /* Get the vinmin property */ |
| 1267 | rc = of_property_read_u32(spmi->dev.of_node, "qcom,chg-vinmin-mv", |
| 1268 | &chip->min_voltage_mv); |
| 1269 | if (rc && rc != -EINVAL) { |
| 1270 | pr_err("Error reading vddmax property %d\n", rc); |
| 1271 | goto fail_chg_enable; |
| 1272 | } |
| 1273 | |
| 1274 | /* Get the vddmax property */ |
| 1275 | rc = of_property_read_u32(spmi->dev.of_node, "qcom,chg-vddsafe-mv", |
| 1276 | &chip->safe_voltage_mv); |
| 1277 | if (rc && rc != -EINVAL) { |
| 1278 | pr_err("Error reading vddsave property %d\n", rc); |
| 1279 | goto fail_chg_enable; |
| 1280 | } |
| 1281 | |
David Keitel | 5d44fa5 | 2012-12-03 16:37:31 -0800 | [diff] [blame] | 1282 | /* Get the ibatsafe property */ |
| 1283 | rc = of_property_read_u32(spmi->dev.of_node, |
| 1284 | "qcom,chg-vbatdet-mv", |
| 1285 | &chip->resume_voltage_mv); |
| 1286 | if (rc) { |
| 1287 | pr_err("Error reading vbatdet property %d\n", rc); |
| 1288 | goto fail_chg_enable; |
| 1289 | } |
| 1290 | |
| 1291 | /* Get the ibatsafe property */ |
| 1292 | rc = of_property_read_u32(spmi->dev.of_node, |
| 1293 | "qcom,chg-ibatsafe-ma", |
| 1294 | &chip->safe_current); |
| 1295 | if (rc) { |
| 1296 | pr_err("Error reading ibatsafe property %d\n", rc); |
| 1297 | goto fail_chg_enable; |
| 1298 | } |
| 1299 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1300 | /* Get the ibatterm property */ |
| 1301 | rc = of_property_read_u32(spmi->dev.of_node, |
| 1302 | "qcom,chg-ibatterm-ma", |
| 1303 | &chip->term_current); |
| 1304 | if (rc && rc != -EINVAL) { |
| 1305 | pr_err("Error reading ibatterm property %d\n", rc); |
| 1306 | goto fail_chg_enable; |
| 1307 | } |
| 1308 | |
| 1309 | /* Get the ibatmax property */ |
| 1310 | rc = of_property_read_u32(spmi->dev.of_node, "qcom,chg-ibatmax-ma", |
| 1311 | &chip->max_bat_chg_current); |
| 1312 | if (rc && rc != -EINVAL) { |
| 1313 | pr_err("Error reading ibatmax property %d\n", rc); |
| 1314 | goto fail_chg_enable; |
| 1315 | } |
| 1316 | |
David Keitel | bf35904 | 2012-10-19 16:54:58 -0700 | [diff] [blame] | 1317 | /* Get the charging-disabled property */ |
David Keitel | 03ee6b5 | 2012-10-22 12:25:19 -0700 | [diff] [blame] | 1318 | chip->charging_disabled = of_property_read_bool(spmi->dev.of_node, |
David Keitel | bf35904 | 2012-10-19 16:54:58 -0700 | [diff] [blame] | 1319 | "qcom,chg-charging-disabled"); |
| 1320 | |
David Keitel | 3dd5e0f | 2012-12-12 18:12:36 -0800 | [diff] [blame] | 1321 | /* Get the fake-batt-values property */ |
| 1322 | chip->use_default_batt_values = of_property_read_bool(spmi->dev.of_node, |
| 1323 | "qcom,chg-use-default-batt-values"); |
| 1324 | |
| 1325 | /* Disable charging when faking battery values */ |
| 1326 | if (chip->use_default_batt_values) |
| 1327 | chip->charging_disabled = true; |
| 1328 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1329 | spmi_for_each_container_dev(spmi_resource, spmi) { |
| 1330 | if (!spmi_resource) { |
| 1331 | pr_err("qpnp_chg: spmi resource absent\n"); |
| 1332 | rc = -ENXIO; |
| 1333 | goto fail_chg_enable; |
| 1334 | } |
| 1335 | |
| 1336 | resource = spmi_get_resource(spmi, spmi_resource, |
| 1337 | IORESOURCE_MEM, 0); |
| 1338 | if (!(resource && resource->start)) { |
| 1339 | pr_err("node %s IO resource absent!\n", |
| 1340 | spmi->dev.of_node->full_name); |
| 1341 | rc = -ENXIO; |
| 1342 | goto fail_chg_enable; |
| 1343 | } |
| 1344 | |
| 1345 | rc = qpnp_chg_read(chip, &subtype, |
| 1346 | resource->start + REG_OFFSET_PERP_SUBTYPE, 1); |
| 1347 | if (rc) { |
| 1348 | pr_err("Peripheral subtype read failed rc=%d\n", rc); |
| 1349 | goto fail_chg_enable; |
| 1350 | } |
| 1351 | |
| 1352 | switch (subtype) { |
| 1353 | case SMBB_CHGR_SUBTYPE: |
| 1354 | chip->chgr_base = resource->start; |
| 1355 | rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); |
| 1356 | if (rc) { |
| 1357 | pr_err("Failed to init subtype 0x%x rc=%d\n", |
| 1358 | subtype, rc); |
| 1359 | goto fail_chg_enable; |
| 1360 | } |
| 1361 | break; |
| 1362 | case SMBB_BUCK_SUBTYPE: |
| 1363 | chip->buck_base = resource->start; |
| 1364 | rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); |
| 1365 | if (rc) { |
| 1366 | pr_err("Failed to init subtype 0x%x rc=%d\n", |
| 1367 | subtype, rc); |
| 1368 | goto fail_chg_enable; |
| 1369 | } |
| 1370 | break; |
| 1371 | case SMBB_BAT_IF_SUBTYPE: |
| 1372 | chip->bat_if_base = resource->start; |
| 1373 | rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); |
| 1374 | if (rc) { |
| 1375 | pr_err("Failed to init subtype 0x%x rc=%d\n", |
| 1376 | subtype, rc); |
| 1377 | goto fail_chg_enable; |
| 1378 | } |
| 1379 | break; |
| 1380 | case SMBB_USB_CHGPTH_SUBTYPE: |
| 1381 | chip->usb_chgpth_base = resource->start; |
| 1382 | rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); |
| 1383 | if (rc) { |
| 1384 | pr_err("Failed to init subtype 0x%x rc=%d\n", |
| 1385 | subtype, rc); |
| 1386 | goto fail_chg_enable; |
| 1387 | } |
| 1388 | break; |
| 1389 | case SMBB_DC_CHGPTH_SUBTYPE: |
| 1390 | chip->dc_chgpth_base = resource->start; |
| 1391 | rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); |
| 1392 | if (rc) { |
| 1393 | pr_err("Failed to init subtype 0x%x rc=%d\n", |
| 1394 | subtype, rc); |
| 1395 | goto fail_chg_enable; |
| 1396 | } |
| 1397 | break; |
| 1398 | case SMBB_BOOST_SUBTYPE: |
| 1399 | chip->boost_base = resource->start; |
| 1400 | rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); |
| 1401 | if (rc) { |
| 1402 | pr_err("Failed to init subtype 0x%x rc=%d\n", |
| 1403 | subtype, rc); |
| 1404 | goto fail_chg_enable; |
| 1405 | } |
| 1406 | break; |
| 1407 | case SMBB_MISC_SUBTYPE: |
| 1408 | chip->misc_base = resource->start; |
| 1409 | rc = qpnp_chg_hwinit(chip, subtype, spmi_resource); |
| 1410 | if (rc) { |
| 1411 | pr_err("Failed to init subtype=0x%x rc=%d\n", |
| 1412 | subtype, rc); |
| 1413 | goto fail_chg_enable; |
| 1414 | } |
| 1415 | break; |
| 1416 | default: |
| 1417 | pr_err("Invalid peripheral subtype=0x%x\n", subtype); |
| 1418 | rc = -EINVAL; |
| 1419 | goto fail_chg_enable; |
| 1420 | } |
| 1421 | } |
| 1422 | dev_set_drvdata(&spmi->dev, chip); |
| 1423 | device_init_wakeup(&spmi->dev, 1); |
| 1424 | |
| 1425 | chip->dc_psy.name = "qpnp-dc"; |
| 1426 | chip->dc_psy.type = POWER_SUPPLY_TYPE_MAINS; |
| 1427 | chip->dc_psy.supplied_to = pm_power_supplied_to; |
| 1428 | chip->dc_psy.num_supplicants = ARRAY_SIZE(pm_power_supplied_to); |
| 1429 | chip->dc_psy.properties = pm_power_props_mains; |
| 1430 | chip->dc_psy.num_properties = ARRAY_SIZE(pm_power_props_mains); |
| 1431 | chip->dc_psy.get_property = qpnp_power_get_property_mains; |
| 1432 | |
| 1433 | chip->batt_psy.name = "battery"; |
| 1434 | chip->batt_psy.type = POWER_SUPPLY_TYPE_BATTERY; |
| 1435 | chip->batt_psy.properties = msm_batt_power_props; |
| 1436 | chip->batt_psy.num_properties = ARRAY_SIZE(msm_batt_power_props); |
| 1437 | chip->batt_psy.get_property = qpnp_batt_power_get_property; |
David Keitel | b80eda8 | 2012-10-15 10:49:11 -0700 | [diff] [blame] | 1438 | chip->batt_psy.set_property = qpnp_batt_power_set_property; |
David Keitel | 03ee6b5 | 2012-10-22 12:25:19 -0700 | [diff] [blame] | 1439 | chip->batt_psy.property_is_writeable = qpnp_batt_property_is_writeable; |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1440 | chip->batt_psy.external_power_changed = |
| 1441 | qpnp_batt_external_power_changed; |
| 1442 | |
| 1443 | rc = power_supply_register(chip->dev, &chip->dc_psy); |
| 1444 | if (rc < 0) { |
| 1445 | pr_err("power_supply_register usb failed rc = %d\n", rc); |
| 1446 | goto fail_chg_enable; |
| 1447 | } |
| 1448 | |
| 1449 | rc = power_supply_register(chip->dev, &chip->batt_psy); |
| 1450 | if (rc < 0) { |
| 1451 | pr_err("power_supply_register batt failed rc = %d\n", rc); |
| 1452 | goto unregister_dc; |
| 1453 | } |
| 1454 | |
Sridhar Parasuram | ae183bd | 2012-12-21 09:28:46 -0800 | [diff] [blame^] | 1455 | /* Turn on appropriate workaround flags */ |
| 1456 | qpnp_chg_setup_flags(chip); |
| 1457 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1458 | power_supply_set_present(chip->usb_psy, |
| 1459 | qpnp_chg_is_usb_chg_plugged_in(chip)); |
| 1460 | |
David Keitel | 03ee6b5 | 2012-10-22 12:25:19 -0700 | [diff] [blame] | 1461 | qpnp_chg_charge_en(chip, !chip->charging_disabled); |
David Keitel | b1ddb74 | 2012-11-06 19:05:51 -0800 | [diff] [blame] | 1462 | qpnp_chg_force_run_on_batt(chip, chip->charging_disabled); |
David Keitel | bf35904 | 2012-10-19 16:54:58 -0700 | [diff] [blame] | 1463 | |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1464 | pr_info("Probe success !\n"); |
| 1465 | return 0; |
| 1466 | |
| 1467 | unregister_dc: |
| 1468 | power_supply_unregister(&chip->dc_psy); |
| 1469 | fail_chg_enable: |
| 1470 | kfree(chip); |
| 1471 | dev_set_drvdata(&spmi->dev, NULL); |
| 1472 | return rc; |
| 1473 | } |
| 1474 | |
| 1475 | static int __devexit |
| 1476 | qpnp_charger_remove(struct spmi_device *spmi) |
| 1477 | { |
| 1478 | struct qpnp_chg_chip *chip = dev_get_drvdata(&spmi->dev); |
David Keitel | 8066895 | 2012-07-27 14:25:49 -0700 | [diff] [blame] | 1479 | dev_set_drvdata(&spmi->dev, NULL); |
| 1480 | kfree(chip); |
| 1481 | |
| 1482 | return 0; |
| 1483 | } |
| 1484 | |
| 1485 | static struct spmi_driver qpnp_charger_driver = { |
| 1486 | .probe = qpnp_charger_probe, |
| 1487 | .remove = __devexit_p(qpnp_charger_remove), |
| 1488 | .driver = { |
| 1489 | .name = QPNP_CHARGER_DEV_NAME, |
| 1490 | .owner = THIS_MODULE, |
| 1491 | .of_match_table = qpnp_charger_match_table, |
| 1492 | }, |
| 1493 | }; |
| 1494 | |
| 1495 | /** |
| 1496 | * qpnp_chg_init() - register spmi driver for qpnp-chg |
| 1497 | */ |
| 1498 | int __init |
| 1499 | qpnp_chg_init(void) |
| 1500 | { |
| 1501 | return spmi_driver_register(&qpnp_charger_driver); |
| 1502 | } |
| 1503 | module_init(qpnp_chg_init); |
| 1504 | |
| 1505 | static void __exit |
| 1506 | qpnp_chg_exit(void) |
| 1507 | { |
| 1508 | spmi_driver_unregister(&qpnp_charger_driver); |
| 1509 | } |
| 1510 | module_exit(qpnp_chg_exit); |
| 1511 | |
| 1512 | |
| 1513 | MODULE_DESCRIPTION("QPNP charger driver"); |
| 1514 | MODULE_LICENSE("GPL v2"); |
| 1515 | MODULE_ALIAS("platform:" QPNP_CHARGER_DEV_NAME); |