drivers/power/supply/ab8500_bmdata.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/export.h>
   3 #include <linux/power_supply.h>
   4 #include <linux/of.h>
   5 #include <linux/mfd/abx500.h>
   6 #include <linux/mfd/abx500/ab8500.h>
   7 #include <linux/mfd/abx500/ab8500-bm.h>
   8
   9 /*
  10  * These are the defined batteries that uses a NTC and ID resistor placed
  11  * inside of the battery pack.
  12  * Note that the res_to_temp table must be strictly sorted by falling resistance
  13  * values to work.
  14  */
  15 const struct abx500_res_to_temp ab8500_temp_tbl_a_thermistor[] = {
  16         {-5, 53407},
  17         { 0, 48594},
  18         { 5, 43804},
  19         {10, 39188},
  20         {15, 34870},
  21         {20, 30933},
  22         {25, 27422},
  23         {30, 24347},
  24         {35, 21694},
  25         {40, 19431},
  26         {45, 17517},
  27         {50, 15908},
  28         {55, 14561},
  29         {60, 13437},
  30         {65, 12500},
  31 };
  32 EXPORT_SYMBOL(ab8500_temp_tbl_a_thermistor);
  33
  34 const int ab8500_temp_tbl_a_size = ARRAY_SIZE(ab8500_temp_tbl_a_thermistor);
  35 EXPORT_SYMBOL(ab8500_temp_tbl_a_size);
  36
  37 const struct abx500_res_to_temp ab8500_temp_tbl_b_thermistor[] = {
  38         {-5, 200000},
  39         { 0, 159024},
  40         { 5, 151921},
  41         {10, 144300},
  42         {15, 136424},
  43         {20, 128565},
  44         {25, 120978},
  45         {30, 113875},
  46         {35, 107397},
  47         {40, 101629},
  48         {45,  96592},
  49         {50,  92253},
  50         {55,  88569},
  51         {60,  85461},
  52         {65,  82869},
  53 };
  54 EXPORT_SYMBOL(ab8500_temp_tbl_b_thermistor);
  55
  56 const int ab8500_temp_tbl_b_size = ARRAY_SIZE(ab8500_temp_tbl_b_thermistor);
  57 EXPORT_SYMBOL(ab8500_temp_tbl_b_size);
  58
  59 static const struct abx500_v_to_cap cap_tbl_a_thermistor[] = {
  60         {4171,  100},
  61         {4114,   95},
  62         {4009,   83},
  63         {3947,   74},
  64         {3907,   67},
  65         {3863,   59},
  66         {3830,   56},
  67         {3813,   53},
  68         {3791,   46},
  69         {3771,   33},
  70         {3754,   25},
  71         {3735,   20},
  72         {3717,   17},
  73         {3681,   13},
  74         {3664,    8},
  75         {3651,    6},
  76         {3635,    5},
  77         {3560,    3},
  78         {3408,    1},
  79         {3247,    0},
  80 };
  81
  82 static const struct abx500_v_to_cap cap_tbl_b_thermistor[] = {
  83         {4161,  100},
  84         {4124,   98},
  85         {4044,   90},
  86         {4003,   85},
  87         {3966,   80},
  88         {3933,   75},
  89         {3888,   67},
  90         {3849,   60},
  91         {3813,   55},
  92         {3787,   47},
  93         {3772,   30},
  94         {3751,   25},
  95         {3718,   20},
  96         {3681,   16},
  97         {3660,   14},
  98         {3589,   10},
  99         {3546,    7},
 100         {3495,    4},
 101         {3404,    2},
 102         {3250,    0},
 103 };
 104
 105 static const struct abx500_v_to_cap cap_tbl[] = {
 106         {4186,  100},
 107         {4163,   99},
 108         {4114,   95},
 109         {4068,   90},
 110         {3990,   80},
 111         {3926,   70},
 112         {3898,   65},
 113         {3866,   60},
 114         {3833,   55},
 115         {3812,   50},
 116         {3787,   40},
 117         {3768,   30},
 118         {3747,   25},
 119         {3730,   20},
 120         {3705,   15},
 121         {3699,   14},
 122         {3684,   12},
 123         {3672,    9},
 124         {3657,    7},
 125         {3638,    6},
 126         {3556,    4},
 127         {3424,    2},
 128         {3317,    1},
 129         {3094,    0},
 130 };
 131
 132 /*
 133  * Note that the res_to_temp table must be strictly sorted by falling
 134  * resistance values to work.
 135  */
 136 static const struct abx500_res_to_temp temp_tbl[] = {
 137         {-5, 214834},
 138         { 0, 162943},
 139         { 5, 124820},
 140         {10,  96520},
 141         {15,  75306},
 142         {20,  59254},
 143         {25,  47000},
 144         {30,  37566},
 145         {35,  30245},
 146         {40,  24520},
 147         {45,  20010},
 148         {50,  16432},
 149         {55,  13576},
 150         {60,  11280},
 151         {65,   9425},
 152 };
 153
 154 /*
 155  * Note that the batres_vs_temp table must be strictly sorted by falling
 156  * temperature values to work.
 157  */
 158 static const struct batres_vs_temp temp_to_batres_tbl_thermistor[] = {
 159         { 40, 120},
 160         { 30, 135},
 161         { 20, 165},
 162         { 10, 230},
 163         { 00, 325},
 164         {-10, 445},
 165         {-20, 595},
 166 };
 167
 168 /*
 169  * Note that the batres_vs_temp table must be strictly sorted by falling
 170  * temperature values to work.
 171  */
 172 static const struct batres_vs_temp temp_to_batres_tbl_ext_thermistor[] = {
 173         { 60, 300},
 174         { 30, 300},
 175         { 20, 300},
 176         { 10, 300},
 177         { 00, 300},
 178         {-10, 300},
 179         {-20, 300},
 180 };
 181
 182 /* battery resistance table for LI ION 9100 battery */
 183 static const struct batres_vs_temp temp_to_batres_tbl_9100[] = {
 184         { 60, 180},
 185         { 30, 180},
 186         { 20, 180},
 187         { 10, 180},
 188         { 00, 180},
 189         {-10, 180},
 190         {-20, 180},
 191 };
 192
 193 static struct abx500_battery_type bat_type_thermistor[] = {
 194         [BATTERY_UNKNOWN] = {
 195                 /* First element always represent the UNKNOWN battery */
 196                 .name = POWER_SUPPLY_TECHNOLOGY_UNKNOWN,
 197                 .resis_high = 0,
 198                 .resis_low = 0,
 199                 .battery_resistance = 300,
 200                 .charge_full_design = 612,
 201                 .nominal_voltage = 3700,
 202                 .termination_vol = 4050,
 203                 .termination_curr = 200,
 204                 .recharge_cap = 95,
 205                 .normal_cur_lvl = 400,
 206                 .normal_vol_lvl = 4100,
 207                 .maint_a_cur_lvl = 400,
 208                 .maint_a_vol_lvl = 4050,
 209                 .maint_a_chg_timer_h = 60,
 210                 .maint_b_cur_lvl = 400,
 211                 .maint_b_vol_lvl = 4000,
 212                 .maint_b_chg_timer_h = 200,
 213                 .low_high_cur_lvl = 300,
 214                 .low_high_vol_lvl = 4000,
 215                 .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
 216                 .r_to_t_tbl = temp_tbl,
 217                 .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
 218                 .v_to_cap_tbl = cap_tbl,
 219                 .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
 220                 .batres_tbl = temp_to_batres_tbl_thermistor,
 221         },
 222         {
 223                 .name = POWER_SUPPLY_TECHNOLOGY_LIPO,
 224                 .resis_high = 53407,
 225                 .resis_low = 12500,
 226                 .battery_resistance = 300,
 227                 .charge_full_design = 900,
 228                 .nominal_voltage = 3600,
 229                 .termination_vol = 4150,
 230                 .termination_curr = 80,
 231                 .recharge_cap = 95,
 232                 .normal_cur_lvl = 700,
 233                 .normal_vol_lvl = 4200,
 234                 .maint_a_cur_lvl = 600,
 235                 .maint_a_vol_lvl = 4150,
 236                 .maint_a_chg_timer_h = 60,
 237                 .maint_b_cur_lvl = 600,
 238                 .maint_b_vol_lvl = 4100,
 239                 .maint_b_chg_timer_h = 200,
 240                 .low_high_cur_lvl = 300,
 241                 .low_high_vol_lvl = 4000,
 242                 .n_temp_tbl_elements = ARRAY_SIZE(ab8500_temp_tbl_a_thermistor),
 243                 .r_to_t_tbl = ab8500_temp_tbl_a_thermistor,
 244                 .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl_a_thermistor),
 245                 .v_to_cap_tbl = cap_tbl_a_thermistor,
 246                 .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
 247                 .batres_tbl = temp_to_batres_tbl_thermistor,
 248
 249         },
 250         {
 251                 .name = POWER_SUPPLY_TECHNOLOGY_LIPO,
 252                 .resis_high = 200000,
 253                 .resis_low = 82869,
 254                 .battery_resistance = 300,
 255                 .charge_full_design = 900,
 256                 .nominal_voltage = 3600,
 257                 .termination_vol = 4150,
 258                 .termination_curr = 80,
 259                 .recharge_cap = 95,
 260                 .normal_cur_lvl = 700,
 261                 .normal_vol_lvl = 4200,
 262                 .maint_a_cur_lvl = 600,
 263                 .maint_a_vol_lvl = 4150,
 264                 .maint_a_chg_timer_h = 60,
 265                 .maint_b_cur_lvl = 600,
 266                 .maint_b_vol_lvl = 4100,
 267                 .maint_b_chg_timer_h = 200,
 268                 .low_high_cur_lvl = 300,
 269                 .low_high_vol_lvl = 4000,
 270                 .n_temp_tbl_elements = ARRAY_SIZE(ab8500_temp_tbl_b_thermistor),
 271                 .r_to_t_tbl = ab8500_temp_tbl_b_thermistor,
 272                 .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl_b_thermistor),
 273                 .v_to_cap_tbl = cap_tbl_b_thermistor,
 274                 .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
 275                 .batres_tbl = temp_to_batres_tbl_thermistor,
 276         },
 277 };
 278
 279 static struct abx500_battery_type bat_type_ext_thermistor[] = {
 280         [BATTERY_UNKNOWN] = {
 281                 /* First element always represent the UNKNOWN battery */
 282                 .name = POWER_SUPPLY_TECHNOLOGY_UNKNOWN,
 283                 .resis_high = 0,
 284                 .resis_low = 0,
 285                 .battery_resistance = 300,
 286                 .charge_full_design = 612,
 287                 .nominal_voltage = 3700,
 288                 .termination_vol = 4050,
 289                 .termination_curr = 200,
 290                 .recharge_cap = 95,
 291                 .normal_cur_lvl = 400,
 292                 .normal_vol_lvl = 4100,
 293                 .maint_a_cur_lvl = 400,
 294                 .maint_a_vol_lvl = 4050,
 295                 .maint_a_chg_timer_h = 60,
 296                 .maint_b_cur_lvl = 400,
 297                 .maint_b_vol_lvl = 4000,
 298                 .maint_b_chg_timer_h = 200,
 299                 .low_high_cur_lvl = 300,
 300                 .low_high_vol_lvl = 4000,
 301                 .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
 302                 .r_to_t_tbl = temp_tbl,
 303                 .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
 304                 .v_to_cap_tbl = cap_tbl,
 305                 .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
 306                 .batres_tbl = temp_to_batres_tbl_thermistor,
 307         },
 308 /*
 309  * These are the batteries that doesn't have an internal NTC resistor to measure
 310  * its temperature. The temperature in this case is measure with a NTC placed
 311  * near the battery but on the PCB.
 312  */
 313         {
 314                 .name = POWER_SUPPLY_TECHNOLOGY_LIPO,
 315                 .resis_high = 76000,
 316                 .resis_low = 53000,
 317                 .battery_resistance = 300,
 318                 .charge_full_design = 900,
 319                 .nominal_voltage = 3700,
 320                 .termination_vol = 4150,
 321                 .termination_curr = 100,
 322                 .recharge_cap = 95,
 323                 .normal_cur_lvl = 700,
 324                 .normal_vol_lvl = 4200,
 325                 .maint_a_cur_lvl = 600,
 326                 .maint_a_vol_lvl = 4150,
 327                 .maint_a_chg_timer_h = 60,
 328                 .maint_b_cur_lvl = 600,
 329                 .maint_b_vol_lvl = 4100,
 330                 .maint_b_chg_timer_h = 200,
 331                 .low_high_cur_lvl = 300,
 332                 .low_high_vol_lvl = 4000,
 333                 .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
 334                 .r_to_t_tbl = temp_tbl,
 335                 .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
 336                 .v_to_cap_tbl = cap_tbl,
 337                 .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
 338                 .batres_tbl = temp_to_batres_tbl_thermistor,
 339         },
 340         {
 341                 .name = POWER_SUPPLY_TECHNOLOGY_LION,
 342                 .resis_high = 30000,
 343                 .resis_low = 10000,
 344                 .battery_resistance = 300,
 345                 .charge_full_design = 950,
 346                 .nominal_voltage = 3700,
 347                 .termination_vol = 4150,
 348                 .termination_curr = 100,
 349                 .recharge_cap = 95,
 350                 .normal_cur_lvl = 700,
 351                 .normal_vol_lvl = 4200,
 352                 .maint_a_cur_lvl = 600,
 353                 .maint_a_vol_lvl = 4150,
 354                 .maint_a_chg_timer_h = 60,
 355                 .maint_b_cur_lvl = 600,
 356                 .maint_b_vol_lvl = 4100,
 357                 .maint_b_chg_timer_h = 200,
 358                 .low_high_cur_lvl = 300,
 359                 .low_high_vol_lvl = 4000,
 360                 .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
 361                 .r_to_t_tbl = temp_tbl,
 362                 .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
 363                 .v_to_cap_tbl = cap_tbl,
 364                 .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
 365                 .batres_tbl = temp_to_batres_tbl_thermistor,
 366         },
 367         {
 368                 .name = POWER_SUPPLY_TECHNOLOGY_LION,
 369                 .resis_high = 95000,
 370                 .resis_low = 76001,
 371                 .battery_resistance = 300,
 372                 .charge_full_design = 950,
 373                 .nominal_voltage = 3700,
 374                 .termination_vol = 4150,
 375                 .termination_curr = 100,
 376                 .recharge_cap = 95,
 377                 .normal_cur_lvl = 700,
 378                 .normal_vol_lvl = 4200,
 379                 .maint_a_cur_lvl = 600,
 380                 .maint_a_vol_lvl = 4150,
 381                 .maint_a_chg_timer_h = 60,
 382                 .maint_b_cur_lvl = 600,
 383                 .maint_b_vol_lvl = 4100,
 384                 .maint_b_chg_timer_h = 200,
 385                 .low_high_cur_lvl = 300,
 386                 .low_high_vol_lvl = 4000,
 387                 .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
 388                 .r_to_t_tbl = temp_tbl,
 389                 .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
 390                 .v_to_cap_tbl = cap_tbl,
 391                 .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
 392                 .batres_tbl = temp_to_batres_tbl_thermistor,
 393         },
 394 };
 395
 396 static const struct abx500_bm_capacity_levels cap_levels = {
 397         .critical       = 2,
 398         .low            = 10,
 399         .normal         = 70,
 400         .high           = 95,
 401         .full           = 100,
 402 };
 403
 404 static const struct abx500_fg_parameters fg = {
 405         .recovery_sleep_timer = 10,
 406         .recovery_total_time = 100,
 407         .init_timer = 1,
 408         .init_discard_time = 5,
 409         .init_total_time = 40,
 410         .high_curr_time = 60,
 411         .accu_charging = 30,
 412         .accu_high_curr = 30,
 413         .high_curr_threshold = 50,
 414         .lowbat_threshold = 3100,
 415         .battok_falling_th_sel0 = 2860,
 416         .battok_raising_th_sel1 = 2860,
 417         .maint_thres = 95,
 418         .user_cap_limit = 15,
 419         .pcut_enable = 1,
 420         .pcut_max_time = 127,
 421         .pcut_flag_time = 112,
 422         .pcut_max_restart = 15,
 423         .pcut_debounce_time = 2,
 424 };
 425
 426 static const struct abx500_maxim_parameters ab8500_maxi_params = {
 427         .ena_maxi = true,
 428         .chg_curr = 910,
 429         .wait_cycles = 10,
 430         .charger_curr_step = 100,
 431 };
 432
 433 static const struct abx500_maxim_parameters abx540_maxi_params = {
 434         .ena_maxi = true,
 435         .chg_curr = 3000,
 436         .wait_cycles = 10,
 437         .charger_curr_step = 200,
 438 };
 439
 440 static const struct abx500_bm_charger_parameters chg = {
 441         .usb_volt_max           = 5500,
 442         .usb_curr_max           = 1500,
 443         .ac_volt_max            = 7500,
 444         .ac_curr_max            = 1500,
 445 };
 446
 447 /*
 448  * This array maps the raw hex value to charger output current used by the
 449  * AB8500 values
 450  */
 451 static int ab8500_charge_output_curr_map[] = {
 452         100,    200,    300,    400,    500,    600,    700,    800,
 453         900,    1000,   1100,   1200,   1300,   1400,   1500,   1500,
 454 };
 455
 456 static int ab8540_charge_output_curr_map[] = {
 457         0,      0,      0,      75,     100,    125,    150,    175,
 458         200,    225,    250,    275,    300,    325,    350,    375,
 459         400,    425,    450,    475,    500,    525,    550,    575,
 460         600,    625,    650,    675,    700,    725,    750,    775,
 461         800,    825,    850,    875,    900,    925,    950,    975,
 462         1000,   1025,   1050,   1075,   1100,   1125,   1150,   1175,
 463         1200,   1225,   1250,   1275,   1300,   1325,   1350,   1375,
 464         1400,   1425,   1450,   1500,   1600,   1700,   1900,   2000,
 465 };
 466
 467 /*
 468  * This array maps the raw hex value to charger input current used by the
 469  * AB8500 values
 470  */
 471 static int ab8500_charge_input_curr_map[] = {
 472         50,     98,     193,    290,    380,    450,    500,    600,
 473         700,    800,    900,    1000,   1100,   1300,   1400,   1500,
 474 };
 475
 476 static int ab8540_charge_input_curr_map[] = {
 477         25,     50,     75,     100,    125,    150,    175,    200,
 478         225,    250,    275,    300,    325,    350,    375,    400,
 479         425,    450,    475,    500,    525,    550,    575,    600,
 480         625,    650,    675,    700,    725,    750,    775,    800,
 481         825,    850,    875,    900,    925,    950,    975,    1000,
 482         1025,   1050,   1075,   1100,   1125,   1150,   1175,   1200,
 483         1225,   1250,   1275,   1300,   1325,   1350,   1375,   1400,
 484         1425,   1450,   1475,   1500,   1500,   1500,   1500,   1500,
 485 };
 486
 487 struct abx500_bm_data ab8500_bm_data = {
 488         .temp_under             = 3,
 489         .temp_low               = 8,
 490         .temp_high              = 43,
 491         .temp_over              = 48,
 492         .main_safety_tmr_h      = 4,
 493         .temp_interval_chg      = 20,
 494         .temp_interval_nochg    = 120,
 495         .usb_safety_tmr_h       = 4,
 496         .bkup_bat_v             = BUP_VCH_SEL_2P6V,
 497         .bkup_bat_i             = BUP_ICH_SEL_150UA,
 498         .no_maintenance         = false,
 499         .capacity_scaling       = false,
 500         .adc_therm              = ABx500_ADC_THERM_BATCTRL,
 501         .chg_unknown_bat        = false,
 502         .enable_overshoot       = false,
 503         .fg_res                 = 100,
 504         .cap_levels             = &cap_levels,
 505         .bat_type               = bat_type_thermistor,
 506         .n_btypes               = ARRAY_SIZE(bat_type_thermistor),
 507         .batt_id                = 0,
 508         .interval_charging      = 5,
 509         .interval_not_charging  = 120,
 510         .temp_hysteresis        = 3,
 511         .gnd_lift_resistance    = 34,
 512         .chg_output_curr        = ab8500_charge_output_curr_map,
 513         .n_chg_out_curr         = ARRAY_SIZE(ab8500_charge_output_curr_map),
 514         .maxi                   = &ab8500_maxi_params,
 515         .chg_params             = &chg,
 516         .fg_params              = &fg,
 517         .chg_input_curr         = ab8500_charge_input_curr_map,
 518         .n_chg_in_curr          = ARRAY_SIZE(ab8500_charge_input_curr_map),
 519 };
 520
 521 struct abx500_bm_data ab8540_bm_data = {
 522         .temp_under             = 3,
 523         .temp_low               = 8,
 524         .temp_high              = 43,
 525         .temp_over              = 48,
 526         .main_safety_tmr_h      = 4,
 527         .temp_interval_chg      = 20,
 528         .temp_interval_nochg    = 120,
 529         .usb_safety_tmr_h       = 4,
 530         .bkup_bat_v             = BUP_VCH_SEL_2P6V,
 531         .bkup_bat_i             = BUP_ICH_SEL_150UA,
 532         .no_maintenance         = false,
 533         .capacity_scaling       = false,
 534         .adc_therm              = ABx500_ADC_THERM_BATCTRL,
 535         .chg_unknown_bat        = false,
 536         .enable_overshoot       = false,
 537         .fg_res                 = 100,
 538         .cap_levels             = &cap_levels,
 539         .bat_type               = bat_type_thermistor,
 540         .n_btypes               = ARRAY_SIZE(bat_type_thermistor),
 541         .batt_id                = 0,
 542         .interval_charging      = 5,
 543         .interval_not_charging  = 120,
 544         .temp_hysteresis        = 3,
 545         .gnd_lift_resistance    = 0,
 546         .maxi                   = &abx540_maxi_params,
 547         .chg_params             = &chg,
 548         .fg_params              = &fg,
 549         .chg_output_curr        = ab8540_charge_output_curr_map,
 550         .n_chg_out_curr         = ARRAY_SIZE(ab8540_charge_output_curr_map),
 551         .chg_input_curr         = ab8540_charge_input_curr_map,
 552         .n_chg_in_curr          = ARRAY_SIZE(ab8540_charge_input_curr_map),
 553 };
 554
 555 int ab8500_bm_of_probe(struct device *dev,
 556                        struct device_node *np,
 557                        struct abx500_bm_data *bm)
 558 {
 559         const struct batres_vs_temp *tmp_batres_tbl;
 560         struct device_node *battery_node;
 561         const char *btech;
 562         int i;
 563
 564         /* get phandle to 'battery-info' node */
 565         battery_node = of_parse_phandle(np, "battery", 0);
 566         if (!battery_node) {
 567                 dev_err(dev, "battery node or reference missing\n");
 568                 return -EINVAL;
 569         }
 570
 571         btech = of_get_property(battery_node, "stericsson,battery-type", NULL);
 572         if (!btech) {
 573                 dev_warn(dev, "missing property battery-name/type\n");
 574                 return -EINVAL;
 575         }
 576
 577         if (strncmp(btech, "LION", 4) == 0) {
 578                 bm->no_maintenance  = true;
 579                 bm->chg_unknown_bat = true;
 580                 bm->bat_type[BATTERY_UNKNOWN].charge_full_design = 2600;
 581                 bm->bat_type[BATTERY_UNKNOWN].termination_vol    = 4150;
 582                 bm->bat_type[BATTERY_UNKNOWN].recharge_cap       = 95;
 583                 bm->bat_type[BATTERY_UNKNOWN].normal_cur_lvl     = 520;
 584                 bm->bat_type[BATTERY_UNKNOWN].normal_vol_lvl     = 4200;
 585         }
 586
 587         if (of_property_read_bool(battery_node, "thermistor-on-batctrl")) {
 588                 if (strncmp(btech, "LION", 4) == 0)
 589                         tmp_batres_tbl = temp_to_batres_tbl_9100;
 590                 else
 591                         tmp_batres_tbl = temp_to_batres_tbl_thermistor;
 592         } else {
 593                 bm->n_btypes   = 4;
 594                 bm->bat_type   = bat_type_ext_thermistor;
 595                 bm->adc_therm  = ABx500_ADC_THERM_BATTEMP;
 596                 tmp_batres_tbl = temp_to_batres_tbl_ext_thermistor;
 597         }
 598
 599         /* select the battery resolution table */
 600         for (i = 0; i < bm->n_btypes; ++i)
 601                 bm->bat_type[i].batres_tbl = tmp_batres_tbl;
 602
 603         of_node_put(battery_node);
 604
 605         return 0;
 606 }