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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
ded7fc7b AJ |
2 | /* |
3 | * Batttery Driver for Dialog DA9052 PMICs | |
4 | * | |
5 | * Copyright(c) 2011 Dialog Semiconductor Ltd. | |
6 | * | |
7 | * Author: David Dajun Chen <dchen@diasemi.com> | |
ded7fc7b AJ |
8 | */ |
9 | ||
10 | #include <linux/delay.h> | |
11 | #include <linux/freezer.h> | |
12 | #include <linux/fs.h> | |
13 | #include <linux/jiffies.h> | |
14 | #include <linux/module.h> | |
15 | #include <linux/timer.h> | |
16 | #include <linux/uaccess.h> | |
17 | #include <linux/platform_device.h> | |
18 | #include <linux/power_supply.h> | |
19 | ||
20 | #include <linux/mfd/da9052/da9052.h> | |
21 | #include <linux/mfd/da9052/pdata.h> | |
22 | #include <linux/mfd/da9052/reg.h> | |
23 | ||
24 | /* STATIC CONFIGURATION */ | |
25 | #define DA9052_BAT_CUTOFF_VOLT 2800 | |
26 | #define DA9052_BAT_TSH 62000 | |
27 | #define DA9052_BAT_LOW_CAP 4 | |
28 | #define DA9052_AVG_SZ 4 | |
29 | #define DA9052_VC_TBL_SZ 68 | |
30 | #define DA9052_VC_TBL_REF_SZ 3 | |
31 | ||
32 | #define DA9052_ISET_USB_MASK 0x0F | |
33 | #define DA9052_CHG_USB_ILIM_MASK 0x40 | |
34 | #define DA9052_CHG_LIM_COLS 16 | |
35 | ||
36 | #define DA9052_MEAN(x, y) ((x + y) / 2) | |
37 | ||
38 | enum charger_type_enum { | |
39 | DA9052_NOCHARGER = 1, | |
40 | DA9052_CHARGER, | |
41 | }; | |
42 | ||
43 | static const u16 da9052_chg_current_lim[2][DA9052_CHG_LIM_COLS] = { | |
44 | {70, 80, 90, 100, 110, 120, 400, 450, | |
45 | 500, 550, 600, 650, 700, 900, 1100, 1300}, | |
46 | {80, 90, 100, 110, 120, 400, 450, 500, | |
47 | 550, 600, 800, 1000, 1200, 1400, 1600, 1800}, | |
48 | }; | |
49 | ||
50 | static const u16 vc_tbl_ref[3] = {10, 25, 40}; | |
51 | /* Lookup table for voltage vs capacity */ | |
52 | static u32 const vc_tbl[3][68][2] = { | |
53 | /* For temperature 10 degree Celsius */ | |
54 | { | |
55 | {4082, 100}, {4036, 98}, | |
56 | {4020, 96}, {4008, 95}, | |
57 | {3997, 93}, {3983, 91}, | |
58 | {3964, 90}, {3943, 88}, | |
59 | {3926, 87}, {3912, 85}, | |
60 | {3900, 84}, {3890, 82}, | |
61 | {3881, 80}, {3873, 79}, | |
62 | {3865, 77}, {3857, 76}, | |
63 | {3848, 74}, {3839, 73}, | |
64 | {3829, 71}, {3820, 70}, | |
65 | {3811, 68}, {3802, 67}, | |
66 | {3794, 65}, {3785, 64}, | |
67 | {3778, 62}, {3770, 61}, | |
68 | {3763, 59}, {3756, 58}, | |
69 | {3750, 56}, {3744, 55}, | |
70 | {3738, 53}, {3732, 52}, | |
71 | {3727, 50}, {3722, 49}, | |
72 | {3717, 47}, {3712, 46}, | |
73 | {3708, 44}, {3703, 43}, | |
74 | {3700, 41}, {3696, 40}, | |
75 | {3693, 38}, {3691, 37}, | |
76 | {3688, 35}, {3686, 34}, | |
77 | {3683, 32}, {3681, 31}, | |
78 | {3678, 29}, {3675, 28}, | |
79 | {3672, 26}, {3669, 25}, | |
80 | {3665, 23}, {3661, 22}, | |
81 | {3656, 21}, {3651, 19}, | |
82 | {3645, 18}, {3639, 16}, | |
83 | {3631, 15}, {3622, 13}, | |
84 | {3611, 12}, {3600, 10}, | |
85 | {3587, 9}, {3572, 7}, | |
86 | {3548, 6}, {3503, 5}, | |
87 | {3420, 3}, {3268, 2}, | |
88 | {2992, 1}, {2746, 0} | |
89 | }, | |
90 | /* For temperature 25 degree Celsius */ | |
91 | { | |
92 | {4102, 100}, {4065, 98}, | |
93 | {4048, 96}, {4034, 95}, | |
94 | {4021, 93}, {4011, 92}, | |
95 | {4001, 90}, {3986, 88}, | |
96 | {3968, 87}, {3952, 85}, | |
97 | {3938, 84}, {3926, 82}, | |
98 | {3916, 81}, {3908, 79}, | |
99 | {3900, 77}, {3892, 76}, | |
100 | {3883, 74}, {3874, 73}, | |
101 | {3864, 71}, {3855, 70}, | |
102 | {3846, 68}, {3836, 67}, | |
103 | {3827, 65}, {3819, 64}, | |
104 | {3810, 62}, {3801, 61}, | |
105 | {3793, 59}, {3786, 58}, | |
106 | {3778, 56}, {3772, 55}, | |
107 | {3765, 53}, {3759, 52}, | |
108 | {3754, 50}, {3748, 49}, | |
109 | {3743, 47}, {3738, 46}, | |
110 | {3733, 44}, {3728, 43}, | |
111 | {3724, 41}, {3720, 40}, | |
112 | {3716, 38}, {3712, 37}, | |
113 | {3709, 35}, {3706, 34}, | |
114 | {3703, 33}, {3701, 31}, | |
115 | {3698, 30}, {3696, 28}, | |
116 | {3693, 27}, {3690, 25}, | |
117 | {3687, 24}, {3683, 22}, | |
118 | {3680, 21}, {3675, 19}, | |
119 | {3671, 18}, {3666, 17}, | |
120 | {3660, 15}, {3654, 14}, | |
121 | {3647, 12}, {3639, 11}, | |
122 | {3630, 9}, {3621, 8}, | |
123 | {3613, 6}, {3606, 5}, | |
124 | {3597, 4}, {3582, 2}, | |
125 | {3546, 1}, {2747, 0} | |
126 | }, | |
127 | /* For temperature 40 degree Celsius */ | |
128 | { | |
129 | {4114, 100}, {4081, 98}, | |
130 | {4065, 96}, {4050, 95}, | |
131 | {4036, 93}, {4024, 92}, | |
132 | {4013, 90}, {4002, 88}, | |
133 | {3990, 87}, {3976, 85}, | |
134 | {3962, 84}, {3950, 82}, | |
135 | {3939, 81}, {3930, 79}, | |
136 | {3921, 77}, {3912, 76}, | |
137 | {3902, 74}, {3893, 73}, | |
138 | {3883, 71}, {3874, 70}, | |
139 | {3865, 68}, {3856, 67}, | |
140 | {3847, 65}, {3838, 64}, | |
141 | {3829, 62}, {3820, 61}, | |
142 | {3812, 59}, {3803, 58}, | |
143 | {3795, 56}, {3787, 55}, | |
144 | {3780, 53}, {3773, 52}, | |
145 | {3767, 50}, {3761, 49}, | |
146 | {3756, 47}, {3751, 46}, | |
147 | {3746, 44}, {3741, 43}, | |
148 | {3736, 41}, {3732, 40}, | |
149 | {3728, 38}, {3724, 37}, | |
150 | {3720, 35}, {3716, 34}, | |
151 | {3713, 33}, {3710, 31}, | |
152 | {3707, 30}, {3704, 28}, | |
153 | {3701, 27}, {3698, 25}, | |
154 | {3695, 24}, {3691, 22}, | |
155 | {3686, 21}, {3681, 19}, | |
156 | {3676, 18}, {3671, 17}, | |
157 | {3666, 15}, {3661, 14}, | |
158 | {3655, 12}, {3648, 11}, | |
159 | {3640, 9}, {3632, 8}, | |
160 | {3622, 6}, {3616, 5}, | |
161 | {3611, 4}, {3604, 2}, | |
162 | {3594, 1}, {2747, 0} | |
163 | } | |
164 | }; | |
165 | ||
166 | struct da9052_battery { | |
167 | struct da9052 *da9052; | |
297d716f | 168 | struct power_supply *psy; |
ded7fc7b AJ |
169 | struct notifier_block nb; |
170 | int charger_type; | |
171 | int status; | |
172 | int health; | |
173 | }; | |
174 | ||
175 | static inline int volt_reg_to_mV(int value) | |
176 | { | |
177 | return ((value * 1000) / 512) + 2500; | |
178 | } | |
179 | ||
180 | static inline int ichg_reg_to_mA(int value) | |
181 | { | |
182 | return (value * 3900) / 1000; | |
183 | } | |
184 | ||
185 | static int da9052_read_chgend_current(struct da9052_battery *bat, | |
186 | int *current_mA) | |
187 | { | |
188 | int ret; | |
189 | ||
190 | if (bat->status == POWER_SUPPLY_STATUS_DISCHARGING) | |
191 | return -EINVAL; | |
192 | ||
193 | ret = da9052_reg_read(bat->da9052, DA9052_ICHG_END_REG); | |
194 | if (ret < 0) | |
195 | return ret; | |
196 | ||
197 | *current_mA = ichg_reg_to_mA(ret & DA9052_ICHGEND_ICHGEND); | |
198 | ||
199 | return 0; | |
200 | } | |
201 | ||
202 | static int da9052_read_chg_current(struct da9052_battery *bat, int *current_mA) | |
203 | { | |
204 | int ret; | |
205 | ||
206 | if (bat->status == POWER_SUPPLY_STATUS_DISCHARGING) | |
207 | return -EINVAL; | |
208 | ||
209 | ret = da9052_reg_read(bat->da9052, DA9052_ICHG_AV_REG); | |
210 | if (ret < 0) | |
211 | return ret; | |
212 | ||
213 | *current_mA = ichg_reg_to_mA(ret & DA9052_ICHGAV_ICHGAV); | |
214 | ||
215 | return 0; | |
216 | } | |
217 | ||
218 | static int da9052_bat_check_status(struct da9052_battery *bat, int *status) | |
219 | { | |
220 | u8 v[2] = {0, 0}; | |
221 | u8 bat_status; | |
222 | u8 chg_end; | |
223 | int ret; | |
224 | int chg_current; | |
225 | int chg_end_current; | |
226 | bool dcinsel; | |
227 | bool dcindet; | |
228 | bool vbussel; | |
229 | bool vbusdet; | |
230 | bool dc; | |
231 | bool vbus; | |
232 | ||
233 | ret = da9052_group_read(bat->da9052, DA9052_STATUS_A_REG, 2, v); | |
234 | if (ret < 0) | |
235 | return ret; | |
236 | ||
237 | bat_status = v[0]; | |
238 | chg_end = v[1]; | |
239 | ||
240 | dcinsel = bat_status & DA9052_STATUSA_DCINSEL; | |
241 | dcindet = bat_status & DA9052_STATUSA_DCINDET; | |
242 | vbussel = bat_status & DA9052_STATUSA_VBUSSEL; | |
243 | vbusdet = bat_status & DA9052_STATUSA_VBUSDET; | |
244 | dc = dcinsel && dcindet; | |
245 | vbus = vbussel && vbusdet; | |
246 | ||
247 | /* Preference to WALL(DCIN) charger unit */ | |
248 | if (dc || vbus) { | |
249 | bat->charger_type = DA9052_CHARGER; | |
250 | ||
251 | /* If charging end flag is set and Charging current is greater | |
252 | * than charging end limit then battery is charging | |
253 | */ | |
254 | if ((chg_end & DA9052_STATUSB_CHGEND) != 0) { | |
255 | ret = da9052_read_chg_current(bat, &chg_current); | |
256 | if (ret < 0) | |
257 | return ret; | |
258 | ret = da9052_read_chgend_current(bat, &chg_end_current); | |
259 | if (ret < 0) | |
260 | return ret; | |
261 | ||
262 | if (chg_current >= chg_end_current) | |
263 | bat->status = POWER_SUPPLY_STATUS_CHARGING; | |
264 | else | |
265 | bat->status = POWER_SUPPLY_STATUS_NOT_CHARGING; | |
266 | } else { | |
267 | /* If Charging end flag is cleared then battery is | |
268 | * charging | |
269 | */ | |
270 | bat->status = POWER_SUPPLY_STATUS_CHARGING; | |
271 | } | |
272 | } else if (dcindet || vbusdet) { | |
273 | bat->charger_type = DA9052_CHARGER; | |
274 | bat->status = POWER_SUPPLY_STATUS_NOT_CHARGING; | |
275 | } else { | |
276 | bat->charger_type = DA9052_NOCHARGER; | |
277 | bat->status = POWER_SUPPLY_STATUS_DISCHARGING; | |
278 | } | |
279 | ||
280 | if (status != NULL) | |
281 | *status = bat->status; | |
282 | return 0; | |
283 | } | |
284 | ||
285 | static int da9052_bat_read_volt(struct da9052_battery *bat, int *volt_mV) | |
286 | { | |
287 | int volt; | |
288 | ||
289 | volt = da9052_adc_manual_read(bat->da9052, DA9052_ADC_MAN_MUXSEL_VBAT); | |
290 | if (volt < 0) | |
291 | return volt; | |
292 | ||
293 | *volt_mV = volt_reg_to_mV(volt); | |
294 | ||
295 | return 0; | |
296 | } | |
297 | ||
298 | static int da9052_bat_check_presence(struct da9052_battery *bat, int *illegal) | |
299 | { | |
300 | int bat_temp; | |
301 | ||
302 | bat_temp = da9052_adc_read_temp(bat->da9052); | |
303 | if (bat_temp < 0) | |
304 | return bat_temp; | |
305 | ||
306 | if (bat_temp > DA9052_BAT_TSH) | |
307 | *illegal = 1; | |
308 | else | |
309 | *illegal = 0; | |
310 | ||
311 | return 0; | |
312 | } | |
313 | ||
314 | static int da9052_bat_interpolate(int vbat_lower, int vbat_upper, | |
315 | int level_lower, int level_upper, | |
316 | int bat_voltage) | |
317 | { | |
318 | int tmp; | |
319 | ||
320 | tmp = ((level_upper - level_lower) * 1000) / (vbat_upper - vbat_lower); | |
321 | tmp = level_lower + (((bat_voltage - vbat_lower) * tmp) / 1000); | |
322 | ||
323 | return tmp; | |
324 | } | |
325 | ||
bc909f27 | 326 | static unsigned char da9052_determine_vc_tbl_index(unsigned char adc_temp) |
ded7fc7b AJ |
327 | { |
328 | int i; | |
329 | ||
330 | if (adc_temp <= vc_tbl_ref[0]) | |
331 | return 0; | |
332 | ||
333 | if (adc_temp > vc_tbl_ref[DA9052_VC_TBL_REF_SZ - 1]) | |
334 | return DA9052_VC_TBL_REF_SZ - 1; | |
335 | ||
c4f34226 | 336 | for (i = 0; i < DA9052_VC_TBL_REF_SZ - 1; i++) { |
ded7fc7b AJ |
337 | if ((adc_temp > vc_tbl_ref[i]) && |
338 | (adc_temp <= DA9052_MEAN(vc_tbl_ref[i], vc_tbl_ref[i + 1]))) | |
339 | return i; | |
340 | if ((adc_temp > DA9052_MEAN(vc_tbl_ref[i], vc_tbl_ref[i + 1])) | |
341 | && (adc_temp <= vc_tbl_ref[i])) | |
342 | return i + 1; | |
343 | } | |
bc909f27 AV |
344 | /* |
345 | * For some reason authors of the driver didn't presume that we can | |
346 | * end up here. It might be OK, but might be not, no one knows for | |
347 | * sure. Go check your battery, is it on fire? | |
348 | */ | |
349 | WARN_ON(1); | |
350 | return 0; | |
ded7fc7b AJ |
351 | } |
352 | ||
353 | static int da9052_bat_read_capacity(struct da9052_battery *bat, int *capacity) | |
354 | { | |
355 | int adc_temp; | |
356 | int bat_voltage; | |
357 | int vbat_lower; | |
358 | int vbat_upper; | |
359 | int level_upper; | |
360 | int level_lower; | |
361 | int ret; | |
362 | int flag; | |
363 | int i = 0; | |
364 | int j; | |
365 | ||
366 | ret = da9052_bat_read_volt(bat, &bat_voltage); | |
367 | if (ret < 0) | |
368 | return ret; | |
369 | ||
370 | adc_temp = da9052_adc_read_temp(bat->da9052); | |
371 | if (adc_temp < 0) | |
372 | return adc_temp; | |
373 | ||
374 | i = da9052_determine_vc_tbl_index(adc_temp); | |
375 | ||
376 | if (bat_voltage >= vc_tbl[i][0][0]) { | |
377 | *capacity = 100; | |
378 | return 0; | |
379 | } | |
380 | if (bat_voltage <= vc_tbl[i][DA9052_VC_TBL_SZ - 1][0]) { | |
381 | *capacity = 0; | |
382 | return 0; | |
383 | } | |
384 | flag = 0; | |
385 | ||
386 | for (j = 0; j < (DA9052_VC_TBL_SZ-1); j++) { | |
387 | if ((bat_voltage <= vc_tbl[i][j][0]) && | |
388 | (bat_voltage >= vc_tbl[i][j + 1][0])) { | |
389 | vbat_upper = vc_tbl[i][j][0]; | |
390 | vbat_lower = vc_tbl[i][j + 1][0]; | |
391 | level_upper = vc_tbl[i][j][1]; | |
392 | level_lower = vc_tbl[i][j + 1][1]; | |
393 | flag = 1; | |
394 | break; | |
395 | } | |
396 | } | |
397 | if (!flag) | |
398 | return -EIO; | |
399 | ||
400 | *capacity = da9052_bat_interpolate(vbat_lower, vbat_upper, level_lower, | |
401 | level_upper, bat_voltage); | |
402 | ||
403 | return 0; | |
404 | } | |
405 | ||
406 | static int da9052_bat_check_health(struct da9052_battery *bat, int *health) | |
407 | { | |
408 | int ret; | |
409 | int bat_illegal; | |
410 | int capacity; | |
411 | ||
412 | ret = da9052_bat_check_presence(bat, &bat_illegal); | |
413 | if (ret < 0) | |
414 | return ret; | |
415 | ||
416 | if (bat_illegal) { | |
417 | bat->health = POWER_SUPPLY_HEALTH_UNKNOWN; | |
418 | return 0; | |
419 | } | |
420 | ||
421 | if (bat->health != POWER_SUPPLY_HEALTH_OVERHEAT) { | |
422 | ret = da9052_bat_read_capacity(bat, &capacity); | |
423 | if (ret < 0) | |
424 | return ret; | |
425 | if (capacity < DA9052_BAT_LOW_CAP) | |
426 | bat->health = POWER_SUPPLY_HEALTH_DEAD; | |
427 | else | |
428 | bat->health = POWER_SUPPLY_HEALTH_GOOD; | |
429 | } | |
430 | ||
431 | *health = bat->health; | |
432 | ||
433 | return 0; | |
434 | } | |
435 | ||
436 | static irqreturn_t da9052_bat_irq(int irq, void *data) | |
437 | { | |
438 | struct da9052_battery *bat = data; | |
4b5edf78 | 439 | int virq; |
ded7fc7b | 440 | |
4b5edf78 FE |
441 | virq = regmap_irq_get_virq(bat->da9052->irq_data, irq); |
442 | irq -= virq; | |
ded7fc7b AJ |
443 | |
444 | if (irq == DA9052_IRQ_CHGEND) | |
445 | bat->status = POWER_SUPPLY_STATUS_FULL; | |
446 | else | |
447 | da9052_bat_check_status(bat, NULL); | |
448 | ||
449 | if (irq == DA9052_IRQ_CHGEND || irq == DA9052_IRQ_DCIN || | |
450 | irq == DA9052_IRQ_VBUS || irq == DA9052_IRQ_TBAT) { | |
297d716f | 451 | power_supply_changed(bat->psy); |
ded7fc7b AJ |
452 | } |
453 | ||
454 | return IRQ_HANDLED; | |
455 | } | |
456 | ||
457 | static int da9052_USB_current_notifier(struct notifier_block *nb, | |
458 | unsigned long events, void *data) | |
459 | { | |
460 | u8 row; | |
461 | u8 col; | |
462 | int *current_mA = data; | |
463 | int ret; | |
464 | struct da9052_battery *bat = container_of(nb, struct da9052_battery, | |
465 | nb); | |
466 | ||
467 | if (bat->status == POWER_SUPPLY_STATUS_DISCHARGING) | |
468 | return -EPERM; | |
469 | ||
470 | ret = da9052_reg_read(bat->da9052, DA9052_CHGBUCK_REG); | |
471 | if (ret & DA9052_CHG_USB_ILIM_MASK) | |
472 | return -EPERM; | |
473 | ||
474 | if (bat->da9052->chip_id == DA9052) | |
475 | row = 0; | |
476 | else | |
477 | row = 1; | |
478 | ||
479 | if (*current_mA < da9052_chg_current_lim[row][0] || | |
480 | *current_mA > da9052_chg_current_lim[row][DA9052_CHG_LIM_COLS - 1]) | |
481 | return -EINVAL; | |
482 | ||
483 | for (col = 0; col <= DA9052_CHG_LIM_COLS - 1 ; col++) { | |
484 | if (*current_mA <= da9052_chg_current_lim[row][col]) | |
485 | break; | |
486 | } | |
487 | ||
488 | return da9052_reg_update(bat->da9052, DA9052_ISET_REG, | |
489 | DA9052_ISET_USB_MASK, col); | |
490 | } | |
491 | ||
492 | static int da9052_bat_get_property(struct power_supply *psy, | |
493 | enum power_supply_property psp, | |
494 | union power_supply_propval *val) | |
495 | { | |
496 | int ret; | |
497 | int illegal; | |
297d716f | 498 | struct da9052_battery *bat = power_supply_get_drvdata(psy); |
ded7fc7b AJ |
499 | |
500 | ret = da9052_bat_check_presence(bat, &illegal); | |
501 | if (ret < 0) | |
502 | return ret; | |
503 | ||
504 | if (illegal && psp != POWER_SUPPLY_PROP_PRESENT) | |
505 | return -ENODEV; | |
506 | ||
507 | switch (psp) { | |
508 | case POWER_SUPPLY_PROP_STATUS: | |
509 | ret = da9052_bat_check_status(bat, &val->intval); | |
510 | break; | |
511 | case POWER_SUPPLY_PROP_ONLINE: | |
512 | val->intval = | |
513 | (bat->charger_type == DA9052_NOCHARGER) ? 0 : 1; | |
514 | break; | |
515 | case POWER_SUPPLY_PROP_PRESENT: | |
516 | ret = da9052_bat_check_presence(bat, &val->intval); | |
517 | break; | |
518 | case POWER_SUPPLY_PROP_HEALTH: | |
519 | ret = da9052_bat_check_health(bat, &val->intval); | |
520 | break; | |
521 | case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: | |
522 | val->intval = DA9052_BAT_CUTOFF_VOLT * 1000; | |
523 | break; | |
524 | case POWER_SUPPLY_PROP_VOLTAGE_AVG: | |
525 | ret = da9052_bat_read_volt(bat, &val->intval); | |
526 | break; | |
527 | case POWER_SUPPLY_PROP_CURRENT_AVG: | |
528 | ret = da9052_read_chg_current(bat, &val->intval); | |
529 | break; | |
530 | case POWER_SUPPLY_PROP_CAPACITY: | |
531 | ret = da9052_bat_read_capacity(bat, &val->intval); | |
532 | break; | |
533 | case POWER_SUPPLY_PROP_TEMP: | |
534 | val->intval = da9052_adc_read_temp(bat->da9052); | |
535 | ret = val->intval; | |
536 | break; | |
537 | case POWER_SUPPLY_PROP_TECHNOLOGY: | |
538 | val->intval = POWER_SUPPLY_TECHNOLOGY_LION; | |
539 | break; | |
540 | default: | |
541 | return -EINVAL; | |
542 | } | |
543 | return ret; | |
544 | } | |
545 | ||
546 | static enum power_supply_property da9052_bat_props[] = { | |
547 | POWER_SUPPLY_PROP_STATUS, | |
548 | POWER_SUPPLY_PROP_ONLINE, | |
549 | POWER_SUPPLY_PROP_PRESENT, | |
550 | POWER_SUPPLY_PROP_HEALTH, | |
551 | POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, | |
552 | POWER_SUPPLY_PROP_VOLTAGE_AVG, | |
553 | POWER_SUPPLY_PROP_CURRENT_AVG, | |
554 | POWER_SUPPLY_PROP_CAPACITY, | |
555 | POWER_SUPPLY_PROP_TEMP, | |
556 | POWER_SUPPLY_PROP_TECHNOLOGY, | |
557 | }; | |
558 | ||
297d716f | 559 | static struct power_supply_desc psy_desc = { |
ded7fc7b AJ |
560 | .name = "da9052-bat", |
561 | .type = POWER_SUPPLY_TYPE_BATTERY, | |
562 | .properties = da9052_bat_props, | |
563 | .num_properties = ARRAY_SIZE(da9052_bat_props), | |
564 | .get_property = da9052_bat_get_property, | |
565 | }; | |
566 | ||
4b5edf78 | 567 | static char *da9052_bat_irqs[] = { |
ded7fc7b AJ |
568 | "BATT TEMP", |
569 | "DCIN DET", | |
570 | "DCIN REM", | |
571 | "VBUS DET", | |
572 | "VBUS REM", | |
573 | "CHG END", | |
574 | }; | |
575 | ||
4b5edf78 FE |
576 | static int da9052_bat_irq_bits[] = { |
577 | DA9052_IRQ_TBAT, | |
578 | DA9052_IRQ_DCIN, | |
579 | DA9052_IRQ_DCINREM, | |
580 | DA9052_IRQ_VBUS, | |
581 | DA9052_IRQ_VBUSREM, | |
582 | DA9052_IRQ_CHGEND, | |
583 | }; | |
584 | ||
c8afa640 | 585 | static s32 da9052_bat_probe(struct platform_device *pdev) |
ded7fc7b AJ |
586 | { |
587 | struct da9052_pdata *pdata; | |
588 | struct da9052_battery *bat; | |
297d716f | 589 | struct power_supply_config psy_cfg = {}; |
ded7fc7b | 590 | int ret; |
ded7fc7b AJ |
591 | int i; |
592 | ||
f0094958 JH |
593 | bat = devm_kzalloc(&pdev->dev, sizeof(struct da9052_battery), |
594 | GFP_KERNEL); | |
ded7fc7b AJ |
595 | if (!bat) |
596 | return -ENOMEM; | |
597 | ||
297d716f KK |
598 | psy_cfg.drv_data = bat; |
599 | ||
ded7fc7b | 600 | bat->da9052 = dev_get_drvdata(pdev->dev.parent); |
ded7fc7b AJ |
601 | bat->charger_type = DA9052_NOCHARGER; |
602 | bat->status = POWER_SUPPLY_STATUS_UNKNOWN; | |
603 | bat->health = POWER_SUPPLY_HEALTH_UNKNOWN; | |
604 | bat->nb.notifier_call = da9052_USB_current_notifier; | |
605 | ||
606 | pdata = bat->da9052->dev->platform_data; | |
607 | if (pdata != NULL && pdata->use_for_apm) | |
297d716f | 608 | psy_desc.use_for_apm = pdata->use_for_apm; |
ded7fc7b | 609 | else |
297d716f | 610 | psy_desc.use_for_apm = 1; |
ded7fc7b AJ |
611 | |
612 | for (i = 0; i < ARRAY_SIZE(da9052_bat_irqs); i++) { | |
4b5edf78 FE |
613 | ret = da9052_request_irq(bat->da9052, |
614 | da9052_bat_irq_bits[i], da9052_bat_irqs[i], | |
615 | da9052_bat_irq, bat); | |
616 | ||
ded7fc7b AJ |
617 | if (ret != 0) { |
618 | dev_err(bat->da9052->dev, | |
4b5edf78 FE |
619 | "DA9052 failed to request %s IRQ: %d\n", |
620 | da9052_bat_irqs[i], ret); | |
ded7fc7b AJ |
621 | goto err; |
622 | } | |
623 | } | |
624 | ||
297d716f KK |
625 | bat->psy = power_supply_register(&pdev->dev, &psy_desc, &psy_cfg); |
626 | if (IS_ERR(bat->psy)) { | |
627 | ret = PTR_ERR(bat->psy); | |
ded7fc7b | 628 | goto err; |
297d716f | 629 | } |
ded7fc7b | 630 | |
e1be8329 | 631 | platform_set_drvdata(pdev, bat); |
ded7fc7b AJ |
632 | return 0; |
633 | ||
634 | err: | |
4b5edf78 FE |
635 | while (--i >= 0) |
636 | da9052_free_irq(bat->da9052, da9052_bat_irq_bits[i], bat); | |
637 | ||
ded7fc7b AJ |
638 | return ret; |
639 | } | |
415ec69f | 640 | static int da9052_bat_remove(struct platform_device *pdev) |
ded7fc7b AJ |
641 | { |
642 | int i; | |
ded7fc7b AJ |
643 | struct da9052_battery *bat = platform_get_drvdata(pdev); |
644 | ||
4b5edf78 FE |
645 | for (i = 0; i < ARRAY_SIZE(da9052_bat_irqs); i++) |
646 | da9052_free_irq(bat->da9052, da9052_bat_irq_bits[i], bat); | |
647 | ||
297d716f | 648 | power_supply_unregister(bat->psy); |
ded7fc7b AJ |
649 | |
650 | return 0; | |
651 | } | |
652 | ||
653 | static struct platform_driver da9052_bat_driver = { | |
654 | .probe = da9052_bat_probe, | |
28ea73f4 | 655 | .remove = da9052_bat_remove, |
ded7fc7b AJ |
656 | .driver = { |
657 | .name = "da9052-bat", | |
ded7fc7b AJ |
658 | }, |
659 | }; | |
534f5306 | 660 | module_platform_driver(da9052_bat_driver); |
ded7fc7b AJ |
661 | |
662 | MODULE_DESCRIPTION("DA9052 BAT Device Driver"); | |
663 | MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>"); | |
664 | MODULE_LICENSE("GPL"); | |
665 | MODULE_ALIAS("platform:da9052-bat"); |