1 #include <linux/export.h>
2 #include <linux/power_supply.h>
4 #include <linux/mfd/abx500.h>
5 #include <linux/mfd/abx500/ab8500.h>
6 #include <linux/mfd/abx500/ab8500-bm.h>
9 * These are the defined batteries that uses a NTC and ID resistor placed
10 * inside of the battery pack.
11 * Note that the res_to_temp table must be strictly sorted by falling resistance
14 static struct abx500_res_to_temp temp_tbl_A_thermistor[] = {
32 static struct abx500_res_to_temp temp_tbl_B_thermistor[] = {
50 static struct abx500_v_to_cap cap_tbl_A_thermistor[] = {
73 static struct abx500_v_to_cap cap_tbl_B_thermistor[] = {
96 static struct abx500_v_to_cap cap_tbl[] = {
124 * Note that the res_to_temp table must be strictly sorted by falling
125 * resistance values to work.
127 static struct abx500_res_to_temp temp_tbl[] = {
146 * Note that the batres_vs_temp table must be strictly sorted by falling
147 * temperature values to work.
149 static struct batres_vs_temp temp_to_batres_tbl_thermistor[] = {
160 * Note that the batres_vs_temp table must be strictly sorted by falling
161 * temperature values to work.
163 static struct batres_vs_temp temp_to_batres_tbl_ext_thermistor[] = {
173 /* battery resistance table for LI ION 9100 battery */
174 static struct batres_vs_temp temp_to_batres_tbl_9100[] = {
184 static struct abx500_battery_type bat_type_thermistor[] = {
185 [BATTERY_UNKNOWN] = {
186 /* First element always represent the UNKNOWN battery */
187 .name = POWER_SUPPLY_TECHNOLOGY_UNKNOWN,
190 .battery_resistance = 300,
191 .charge_full_design = 612,
192 .nominal_voltage = 3700,
193 .termination_vol = 4050,
194 .termination_curr = 200,
196 .normal_cur_lvl = 400,
197 .normal_vol_lvl = 4100,
198 .maint_a_cur_lvl = 400,
199 .maint_a_vol_lvl = 4050,
200 .maint_a_chg_timer_h = 60,
201 .maint_b_cur_lvl = 400,
202 .maint_b_vol_lvl = 4000,
203 .maint_b_chg_timer_h = 200,
204 .low_high_cur_lvl = 300,
205 .low_high_vol_lvl = 4000,
206 .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
207 .r_to_t_tbl = temp_tbl,
208 .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
209 .v_to_cap_tbl = cap_tbl,
210 .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
211 .batres_tbl = temp_to_batres_tbl_thermistor,
214 .name = POWER_SUPPLY_TECHNOLOGY_LIPO,
217 .battery_resistance = 300,
218 .charge_full_design = 900,
219 .nominal_voltage = 3600,
220 .termination_vol = 4150,
221 .termination_curr = 80,
223 .normal_cur_lvl = 700,
224 .normal_vol_lvl = 4200,
225 .maint_a_cur_lvl = 600,
226 .maint_a_vol_lvl = 4150,
227 .maint_a_chg_timer_h = 60,
228 .maint_b_cur_lvl = 600,
229 .maint_b_vol_lvl = 4100,
230 .maint_b_chg_timer_h = 200,
231 .low_high_cur_lvl = 300,
232 .low_high_vol_lvl = 4000,
233 .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl_A_thermistor),
234 .r_to_t_tbl = temp_tbl_A_thermistor,
235 .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl_A_thermistor),
236 .v_to_cap_tbl = cap_tbl_A_thermistor,
237 .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
238 .batres_tbl = temp_to_batres_tbl_thermistor,
242 .name = POWER_SUPPLY_TECHNOLOGY_LIPO,
243 .resis_high = 200000,
245 .battery_resistance = 300,
246 .charge_full_design = 900,
247 .nominal_voltage = 3600,
248 .termination_vol = 4150,
249 .termination_curr = 80,
251 .normal_cur_lvl = 700,
252 .normal_vol_lvl = 4200,
253 .maint_a_cur_lvl = 600,
254 .maint_a_vol_lvl = 4150,
255 .maint_a_chg_timer_h = 60,
256 .maint_b_cur_lvl = 600,
257 .maint_b_vol_lvl = 4100,
258 .maint_b_chg_timer_h = 200,
259 .low_high_cur_lvl = 300,
260 .low_high_vol_lvl = 4000,
261 .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl_B_thermistor),
262 .r_to_t_tbl = temp_tbl_B_thermistor,
263 .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl_B_thermistor),
264 .v_to_cap_tbl = cap_tbl_B_thermistor,
265 .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
266 .batres_tbl = temp_to_batres_tbl_thermistor,
270 static struct abx500_battery_type bat_type_ext_thermistor[] = {
271 [BATTERY_UNKNOWN] = {
272 /* First element always represent the UNKNOWN battery */
273 .name = POWER_SUPPLY_TECHNOLOGY_UNKNOWN,
276 .battery_resistance = 300,
277 .charge_full_design = 612,
278 .nominal_voltage = 3700,
279 .termination_vol = 4050,
280 .termination_curr = 200,
282 .normal_cur_lvl = 400,
283 .normal_vol_lvl = 4100,
284 .maint_a_cur_lvl = 400,
285 .maint_a_vol_lvl = 4050,
286 .maint_a_chg_timer_h = 60,
287 .maint_b_cur_lvl = 400,
288 .maint_b_vol_lvl = 4000,
289 .maint_b_chg_timer_h = 200,
290 .low_high_cur_lvl = 300,
291 .low_high_vol_lvl = 4000,
292 .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
293 .r_to_t_tbl = temp_tbl,
294 .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
295 .v_to_cap_tbl = cap_tbl,
296 .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
297 .batres_tbl = temp_to_batres_tbl_thermistor,
300 * These are the batteries that doesn't have an internal NTC resistor to measure
301 * its temperature. The temperature in this case is measure with a NTC placed
302 * near the battery but on the PCB.
305 .name = POWER_SUPPLY_TECHNOLOGY_LIPO,
308 .battery_resistance = 300,
309 .charge_full_design = 900,
310 .nominal_voltage = 3700,
311 .termination_vol = 4150,
312 .termination_curr = 100,
314 .normal_cur_lvl = 700,
315 .normal_vol_lvl = 4200,
316 .maint_a_cur_lvl = 600,
317 .maint_a_vol_lvl = 4150,
318 .maint_a_chg_timer_h = 60,
319 .maint_b_cur_lvl = 600,
320 .maint_b_vol_lvl = 4100,
321 .maint_b_chg_timer_h = 200,
322 .low_high_cur_lvl = 300,
323 .low_high_vol_lvl = 4000,
324 .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
325 .r_to_t_tbl = temp_tbl,
326 .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
327 .v_to_cap_tbl = cap_tbl,
328 .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
329 .batres_tbl = temp_to_batres_tbl_thermistor,
332 .name = POWER_SUPPLY_TECHNOLOGY_LION,
335 .battery_resistance = 300,
336 .charge_full_design = 950,
337 .nominal_voltage = 3700,
338 .termination_vol = 4150,
339 .termination_curr = 100,
341 .normal_cur_lvl = 700,
342 .normal_vol_lvl = 4200,
343 .maint_a_cur_lvl = 600,
344 .maint_a_vol_lvl = 4150,
345 .maint_a_chg_timer_h = 60,
346 .maint_b_cur_lvl = 600,
347 .maint_b_vol_lvl = 4100,
348 .maint_b_chg_timer_h = 200,
349 .low_high_cur_lvl = 300,
350 .low_high_vol_lvl = 4000,
351 .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
352 .r_to_t_tbl = temp_tbl,
353 .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
354 .v_to_cap_tbl = cap_tbl,
355 .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
356 .batres_tbl = temp_to_batres_tbl_thermistor,
359 .name = POWER_SUPPLY_TECHNOLOGY_LION,
362 .battery_resistance = 300,
363 .charge_full_design = 950,
364 .nominal_voltage = 3700,
365 .termination_vol = 4150,
366 .termination_curr = 100,
368 .normal_cur_lvl = 700,
369 .normal_vol_lvl = 4200,
370 .maint_a_cur_lvl = 600,
371 .maint_a_vol_lvl = 4150,
372 .maint_a_chg_timer_h = 60,
373 .maint_b_cur_lvl = 600,
374 .maint_b_vol_lvl = 4100,
375 .maint_b_chg_timer_h = 200,
376 .low_high_cur_lvl = 300,
377 .low_high_vol_lvl = 4000,
378 .n_temp_tbl_elements = ARRAY_SIZE(temp_tbl),
379 .r_to_t_tbl = temp_tbl,
380 .n_v_cap_tbl_elements = ARRAY_SIZE(cap_tbl),
381 .v_to_cap_tbl = cap_tbl,
382 .n_batres_tbl_elements = ARRAY_SIZE(temp_to_batres_tbl_thermistor),
383 .batres_tbl = temp_to_batres_tbl_thermistor,
387 static const struct abx500_bm_capacity_levels cap_levels = {
395 static const struct abx500_fg_parameters fg = {
396 .recovery_sleep_timer = 10,
397 .recovery_total_time = 100,
399 .init_discard_time = 5,
400 .init_total_time = 40,
401 .high_curr_time = 60,
403 .accu_high_curr = 30,
404 .high_curr_threshold = 50,
405 .lowbat_threshold = 3100,
406 .battok_falling_th_sel0 = 2860,
407 .battok_raising_th_sel1 = 2860,
409 .user_cap_limit = 15,
412 static const struct abx500_maxim_parameters maxi_params = {
416 .charger_curr_step = 100,
419 static const struct abx500_bm_charger_parameters chg = {
420 .usb_volt_max = 5500,
421 .usb_curr_max = 1500,
426 struct abx500_bm_data ab8500_bm_data = {
431 .main_safety_tmr_h = 4,
432 .temp_interval_chg = 20,
433 .temp_interval_nochg = 120,
434 .usb_safety_tmr_h = 4,
435 .bkup_bat_v = BUP_VCH_SEL_2P6V,
436 .bkup_bat_i = BUP_ICH_SEL_150UA,
437 .no_maintenance = false,
438 .capacity_scaling = false,
439 .adc_therm = ABx500_ADC_THERM_BATCTRL,
440 .chg_unknown_bat = false,
441 .enable_overshoot = false,
443 .cap_levels = &cap_levels,
444 .bat_type = bat_type_thermistor,
447 .interval_charging = 5,
448 .interval_not_charging = 120,
449 .temp_hysteresis = 3,
450 .gnd_lift_resistance = 34,
451 .maxi = &maxi_params,
456 int ab8500_bm_of_probe(struct device *dev,
457 struct device_node *np,
458 struct abx500_bm_data *bm)
460 struct batres_vs_temp *tmp_batres_tbl;
461 struct device_node *battery_node;
465 /* get phandle to 'battery-info' node */
466 battery_node = of_parse_phandle(np, "battery", 0);
468 dev_err(dev, "battery node or reference missing\n");
472 btech = of_get_property(battery_node, "stericsson,battery-type", NULL);
474 dev_warn(dev, "missing property battery-name/type\n");
478 if (strncmp(btech, "LION", 4) == 0) {
479 bm->no_maintenance = true;
480 bm->chg_unknown_bat = true;
481 bm->bat_type[BATTERY_UNKNOWN].charge_full_design = 2600;
482 bm->bat_type[BATTERY_UNKNOWN].termination_vol = 4150;
483 bm->bat_type[BATTERY_UNKNOWN].recharge_cap = 95;
484 bm->bat_type[BATTERY_UNKNOWN].normal_cur_lvl = 520;
485 bm->bat_type[BATTERY_UNKNOWN].normal_vol_lvl = 4200;
488 if (of_property_read_bool(battery_node, "thermistor-on-batctrl")) {
489 if (strncmp(btech, "LION", 4) == 0)
490 tmp_batres_tbl = temp_to_batres_tbl_9100;
492 tmp_batres_tbl = temp_to_batres_tbl_thermistor;
495 bm->bat_type = bat_type_ext_thermistor;
496 bm->adc_therm = ABx500_ADC_THERM_BATTEMP;
497 tmp_batres_tbl = temp_to_batres_tbl_ext_thermistor;
500 /* select the battery resolution table */
501 for (i = 0; i < bm->n_btypes; ++i)
502 bm->bat_type[i].batres_tbl = tmp_batres_tbl;
504 of_node_put(battery_node);