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e0f1abeb R |
1 | #include <linux/export.h> |
2 | #include <linux/power_supply.h> | |
3 | #include <linux/of.h> | |
4 | #include <linux/mfd/abx500.h> | |
5 | #include <linux/mfd/abx500/ab8500.h> | |
6 | #include <linux/mfd/abx500/ab8500-bm.h> | |
7 | ||
8 | /* | |
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 | |
12 | * values to work. | |
13 | */ | |
14 | static struct abx500_res_to_temp temp_tbl_A_thermistor[] = { | |
15 | {-5, 53407}, | |
16 | { 0, 48594}, | |
17 | { 5, 43804}, | |
18 | {10, 39188}, | |
19 | {15, 34870}, | |
20 | {20, 30933}, | |
21 | {25, 27422}, | |
22 | {30, 24347}, | |
23 | {35, 21694}, | |
24 | {40, 19431}, | |
25 | {45, 17517}, | |
26 | {50, 15908}, | |
27 | {55, 14561}, | |
28 | {60, 13437}, | |
29 | {65, 12500}, | |
30 | }; | |
31 | ||
32 | static struct abx500_res_to_temp temp_tbl_B_thermistor[] = { | |
bd9e8ab2 | 33 | {-5, 200000}, |
e0f1abeb R |
34 | { 0, 159024}, |
35 | { 5, 151921}, | |
36 | {10, 144300}, | |
37 | {15, 136424}, | |
38 | {20, 128565}, | |
39 | {25, 120978}, | |
40 | {30, 113875}, | |
41 | {35, 107397}, | |
42 | {40, 101629}, | |
43 | {45, 96592}, | |
44 | {50, 92253}, | |
45 | {55, 88569}, | |
46 | {60, 85461}, | |
47 | {65, 82869}, | |
48 | }; | |
49 | ||
50 | static struct abx500_v_to_cap cap_tbl_A_thermistor[] = { | |
51 | {4171, 100}, | |
52 | {4114, 95}, | |
53 | {4009, 83}, | |
54 | {3947, 74}, | |
55 | {3907, 67}, | |
56 | {3863, 59}, | |
57 | {3830, 56}, | |
58 | {3813, 53}, | |
59 | {3791, 46}, | |
60 | {3771, 33}, | |
61 | {3754, 25}, | |
62 | {3735, 20}, | |
63 | {3717, 17}, | |
64 | {3681, 13}, | |
65 | {3664, 8}, | |
66 | {3651, 6}, | |
67 | {3635, 5}, | |
68 | {3560, 3}, | |
69 | {3408, 1}, | |
70 | {3247, 0}, | |
71 | }; | |
72 | ||
73 | static struct abx500_v_to_cap cap_tbl_B_thermistor[] = { | |
74 | {4161, 100}, | |
75 | {4124, 98}, | |
76 | {4044, 90}, | |
77 | {4003, 85}, | |
78 | {3966, 80}, | |
79 | {3933, 75}, | |
80 | {3888, 67}, | |
81 | {3849, 60}, | |
82 | {3813, 55}, | |
83 | {3787, 47}, | |
84 | {3772, 30}, | |
85 | {3751, 25}, | |
86 | {3718, 20}, | |
87 | {3681, 16}, | |
88 | {3660, 14}, | |
89 | {3589, 10}, | |
90 | {3546, 7}, | |
91 | {3495, 4}, | |
92 | {3404, 2}, | |
93 | {3250, 0}, | |
94 | }; | |
95 | ||
96 | static struct abx500_v_to_cap cap_tbl[] = { | |
97 | {4186, 100}, | |
98 | {4163, 99}, | |
99 | {4114, 95}, | |
100 | {4068, 90}, | |
101 | {3990, 80}, | |
102 | {3926, 70}, | |
103 | {3898, 65}, | |
104 | {3866, 60}, | |
105 | {3833, 55}, | |
106 | {3812, 50}, | |
107 | {3787, 40}, | |
108 | {3768, 30}, | |
109 | {3747, 25}, | |
110 | {3730, 20}, | |
111 | {3705, 15}, | |
112 | {3699, 14}, | |
113 | {3684, 12}, | |
114 | {3672, 9}, | |
115 | {3657, 7}, | |
116 | {3638, 6}, | |
117 | {3556, 4}, | |
118 | {3424, 2}, | |
119 | {3317, 1}, | |
120 | {3094, 0}, | |
121 | }; | |
122 | ||
123 | /* | |
124 | * Note that the res_to_temp table must be strictly sorted by falling | |
125 | * resistance values to work. | |
126 | */ | |
127 | static struct abx500_res_to_temp temp_tbl[] = { | |
128 | {-5, 214834}, | |
129 | { 0, 162943}, | |
130 | { 5, 124820}, | |
131 | {10, 96520}, | |
132 | {15, 75306}, | |
133 | {20, 59254}, | |
134 | {25, 47000}, | |
135 | {30, 37566}, | |
136 | {35, 30245}, | |
137 | {40, 24520}, | |
138 | {45, 20010}, | |
139 | {50, 16432}, | |
140 | {55, 13576}, | |
141 | {60, 11280}, | |
142 | {65, 9425}, | |
143 | }; | |
144 | ||
145 | /* | |
146 | * Note that the batres_vs_temp table must be strictly sorted by falling | |
147 | * temperature values to work. | |
148 | */ | |
149 | static struct batres_vs_temp temp_to_batres_tbl_thermistor[] = { | |
150 | { 40, 120}, | |
151 | { 30, 135}, | |
152 | { 20, 165}, | |
153 | { 10, 230}, | |
154 | { 00, 325}, | |
155 | {-10, 445}, | |
156 | {-20, 595}, | |
157 | }; | |
158 | ||
159 | /* | |
160 | * Note that the batres_vs_temp table must be strictly sorted by falling | |
161 | * temperature values to work. | |
162 | */ | |
163 | static struct batres_vs_temp temp_to_batres_tbl_ext_thermistor[] = { | |
164 | { 60, 300}, | |
165 | { 30, 300}, | |
166 | { 20, 300}, | |
167 | { 10, 300}, | |
168 | { 00, 300}, | |
169 | {-10, 300}, | |
170 | {-20, 300}, | |
171 | }; | |
172 | ||
173 | /* battery resistance table for LI ION 9100 battery */ | |
174 | static struct batres_vs_temp temp_to_batres_tbl_9100[] = { | |
175 | { 60, 180}, | |
176 | { 30, 180}, | |
177 | { 20, 180}, | |
178 | { 10, 180}, | |
179 | { 00, 180}, | |
180 | {-10, 180}, | |
181 | {-20, 180}, | |
182 | }; | |
183 | ||
184 | static struct abx500_battery_type bat_type_thermistor[] = { | |
43dc4470 LJ |
185 | [BATTERY_UNKNOWN] = { |
186 | /* First element always represent the UNKNOWN battery */ | |
187 | .name = POWER_SUPPLY_TECHNOLOGY_UNKNOWN, | |
188 | .resis_high = 0, | |
189 | .resis_low = 0, | |
190 | .battery_resistance = 300, | |
191 | .charge_full_design = 612, | |
192 | .nominal_voltage = 3700, | |
193 | .termination_vol = 4050, | |
194 | .termination_curr = 200, | |
195 | .recharge_vol = 3990, | |
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, | |
212 | }, | |
213 | { | |
214 | .name = POWER_SUPPLY_TECHNOLOGY_LIPO, | |
215 | .resis_high = 53407, | |
216 | .resis_low = 12500, | |
217 | .battery_resistance = 300, | |
218 | .charge_full_design = 900, | |
219 | .nominal_voltage = 3600, | |
220 | .termination_vol = 4150, | |
221 | .termination_curr = 80, | |
222 | .recharge_vol = 4130, | |
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, | |
e0f1abeb | 239 | |
43dc4470 LJ |
240 | }, |
241 | { | |
242 | .name = POWER_SUPPLY_TECHNOLOGY_LIPO, | |
243 | .resis_high = 200000, | |
244 | .resis_low = 82869, | |
245 | .battery_resistance = 300, | |
246 | .charge_full_design = 900, | |
247 | .nominal_voltage = 3600, | |
248 | .termination_vol = 4150, | |
249 | .termination_curr = 80, | |
250 | .recharge_vol = 4130, | |
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, | |
267 | }, | |
e0f1abeb R |
268 | }; |
269 | ||
270 | static struct abx500_battery_type bat_type_ext_thermistor[] = { | |
43dc4470 LJ |
271 | [BATTERY_UNKNOWN] = { |
272 | /* First element always represent the UNKNOWN battery */ | |
273 | .name = POWER_SUPPLY_TECHNOLOGY_UNKNOWN, | |
274 | .resis_high = 0, | |
275 | .resis_low = 0, | |
276 | .battery_resistance = 300, | |
277 | .charge_full_design = 612, | |
278 | .nominal_voltage = 3700, | |
279 | .termination_vol = 4050, | |
280 | .termination_curr = 200, | |
281 | .recharge_vol = 3990, | |
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, | |
298 | }, | |
e0f1abeb R |
299 | /* |
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. | |
303 | */ | |
43dc4470 LJ |
304 | { |
305 | .name = POWER_SUPPLY_TECHNOLOGY_LIPO, | |
306 | .resis_high = 76000, | |
307 | .resis_low = 53000, | |
308 | .battery_resistance = 300, | |
309 | .charge_full_design = 900, | |
310 | .nominal_voltage = 3700, | |
311 | .termination_vol = 4150, | |
312 | .termination_curr = 100, | |
313 | .recharge_vol = 4130, | |
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, | |
330 | }, | |
331 | { | |
332 | .name = POWER_SUPPLY_TECHNOLOGY_LION, | |
333 | .resis_high = 30000, | |
334 | .resis_low = 10000, | |
335 | .battery_resistance = 300, | |
336 | .charge_full_design = 950, | |
337 | .nominal_voltage = 3700, | |
338 | .termination_vol = 4150, | |
339 | .termination_curr = 100, | |
340 | .recharge_vol = 4130, | |
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, | |
357 | }, | |
358 | { | |
359 | .name = POWER_SUPPLY_TECHNOLOGY_LION, | |
360 | .resis_high = 95000, | |
361 | .resis_low = 76001, | |
362 | .battery_resistance = 300, | |
363 | .charge_full_design = 950, | |
364 | .nominal_voltage = 3700, | |
365 | .termination_vol = 4150, | |
366 | .termination_curr = 100, | |
367 | .recharge_vol = 4130, | |
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, | |
384 | }, | |
e0f1abeb R |
385 | }; |
386 | ||
387 | static const struct abx500_bm_capacity_levels cap_levels = { | |
388 | .critical = 2, | |
389 | .low = 10, | |
390 | .normal = 70, | |
391 | .high = 95, | |
392 | .full = 100, | |
393 | }; | |
394 | ||
395 | static const struct abx500_fg_parameters fg = { | |
396 | .recovery_sleep_timer = 10, | |
397 | .recovery_total_time = 100, | |
398 | .init_timer = 1, | |
399 | .init_discard_time = 5, | |
400 | .init_total_time = 40, | |
401 | .high_curr_time = 60, | |
402 | .accu_charging = 30, | |
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, | |
408 | .user_cap_limit = 15, | |
409 | .maint_thres = 97, | |
410 | }; | |
411 | ||
412 | static const struct abx500_maxim_parameters maxi_params = { | |
413 | .ena_maxi = true, | |
414 | .chg_curr = 910, | |
415 | .wait_cycles = 10, | |
416 | .charger_curr_step = 100, | |
417 | }; | |
418 | ||
419 | static const struct abx500_bm_charger_parameters chg = { | |
420 | .usb_volt_max = 5500, | |
421 | .usb_curr_max = 1500, | |
422 | .ac_volt_max = 7500, | |
423 | .ac_curr_max = 1500, | |
424 | }; | |
425 | ||
426 | struct abx500_bm_data ab8500_bm_data = { | |
43dc4470 LJ |
427 | .temp_under = 3, |
428 | .temp_low = 8, | |
429 | .temp_high = 43, | |
430 | .temp_over = 48, | |
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 | .adc_therm = ABx500_ADC_THERM_BATCTRL, | |
439 | .chg_unknown_bat = false, | |
440 | .enable_overshoot = false, | |
441 | .fg_res = 100, | |
442 | .cap_levels = &cap_levels, | |
443 | .bat_type = bat_type_thermistor, | |
444 | .n_btypes = 3, | |
445 | .batt_id = 0, | |
446 | .interval_charging = 5, | |
447 | .interval_not_charging = 120, | |
448 | .temp_hysteresis = 3, | |
449 | .gnd_lift_resistance = 34, | |
450 | .maxi = &maxi_params, | |
451 | .chg_params = &chg, | |
452 | .fg_params = &fg, | |
e0f1abeb R |
453 | }; |
454 | ||
b0284de0 LJ |
455 | int __devinit ab8500_bm_of_probe(struct device *dev, |
456 | struct device_node *np, | |
23a04f9f | 457 | struct abx500_bm_data *bm) |
e0f1abeb | 458 | { |
8e3a71e5 | 459 | struct batres_vs_temp *tmp_batres_tbl; |
215cf5c9 | 460 | struct device_node *battery_node; |
e0f1abeb | 461 | const char *btech; |
8e3a71e5 | 462 | int i; |
e0f1abeb | 463 | |
e0f1abeb | 464 | /* get phandle to 'battery-info' node */ |
215cf5c9 LJ |
465 | battery_node = of_parse_phandle(np, "battery", 0); |
466 | if (!battery_node) { | |
8e3a71e5 | 467 | dev_err(dev, "battery node or reference missing\n"); |
e0f1abeb R |
468 | return -EINVAL; |
469 | } | |
43dc4470 | 470 | |
215cf5c9 | 471 | btech = of_get_property(battery_node, "stericsson,battery-type", NULL); |
e0f1abeb R |
472 | if (!btech) { |
473 | dev_warn(dev, "missing property battery-name/type\n"); | |
f5695a39 | 474 | return -EINVAL; |
e0f1abeb | 475 | } |
8e3a71e5 | 476 | |
f5695a39 | 477 | if (strncmp(btech, "LION", 4) == 0) { |
23a04f9f LJ |
478 | bm->no_maintenance = true; |
479 | bm->chg_unknown_bat = true; | |
480 | bm->bat_type[BATTERY_UNKNOWN].charge_full_design = 2600; | |
481 | bm->bat_type[BATTERY_UNKNOWN].termination_vol = 4150; | |
482 | bm->bat_type[BATTERY_UNKNOWN].recharge_vol = 4130; | |
483 | bm->bat_type[BATTERY_UNKNOWN].normal_cur_lvl = 520; | |
484 | bm->bat_type[BATTERY_UNKNOWN].normal_vol_lvl = 4200; | |
e0f1abeb | 485 | } |
43dc4470 | 486 | |
215cf5c9 | 487 | if (of_property_read_bool(battery_node, "thermistor-on-batctrl")) { |
8e3a71e5 LJ |
488 | if (strncmp(btech, "LION", 4) == 0) |
489 | tmp_batres_tbl = temp_to_batres_tbl_9100; | |
490 | else | |
491 | tmp_batres_tbl = temp_to_batres_tbl_thermistor; | |
492 | } else { | |
23a04f9f LJ |
493 | bm->n_btypes = 4; |
494 | bm->bat_type = bat_type_ext_thermistor; | |
495 | bm->adc_therm = ABx500_ADC_THERM_BATTEMP; | |
496 | tmp_batres_tbl = temp_to_batres_tbl_ext_thermistor; | |
e0f1abeb | 497 | } |
8e3a71e5 LJ |
498 | |
499 | /* select the battery resolution table */ | |
23a04f9f LJ |
500 | for (i = 0; i < bm->n_btypes; ++i) |
501 | bm->bat_type[i].batres_tbl = tmp_batres_tbl; | |
8e3a71e5 | 502 | |
215cf5c9 | 503 | of_node_put(battery_node); |
43dc4470 | 504 | |
e0f1abeb R |
505 | return 0; |
506 | } |