]>
Commit | Line | Data |
---|---|---|
28db3888 HZ |
1 | /* |
2 | * Battery driver for Maxim MAX8925 | |
3 | * | |
4 | * Copyright (c) 2009-2010 Marvell International Ltd. | |
5 | * Haojian Zhuang <haojian.zhuang@marvell.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
13 | #include <linux/err.h> | |
5a0e3ad6 | 14 | #include <linux/slab.h> |
eba3b670 | 15 | #include <linux/of.h> |
28db3888 HZ |
16 | #include <linux/i2c.h> |
17 | #include <linux/interrupt.h> | |
18 | #include <linux/platform_device.h> | |
19 | #include <linux/power_supply.h> | |
20 | #include <linux/mfd/max8925.h> | |
21 | ||
22 | /* registers in GPM */ | |
23 | #define MAX8925_OUT5VEN 0x54 | |
24 | #define MAX8925_OUT3VEN 0x58 | |
25 | #define MAX8925_CHG_CNTL1 0x7c | |
26 | ||
27 | /* bits definition */ | |
28 | #define MAX8925_CHG_STAT_VSYSLOW (1 << 0) | |
29 | #define MAX8925_CHG_STAT_MODE_MASK (3 << 2) | |
30 | #define MAX8925_CHG_STAT_EN_MASK (1 << 4) | |
31 | #define MAX8925_CHG_MBDET (1 << 1) | |
32 | #define MAX8925_CHG_AC_RANGE_MASK (3 << 6) | |
33 | ||
34 | /* registers in ADC */ | |
35 | #define MAX8925_ADC_RES_CNFG1 0x06 | |
36 | #define MAX8925_ADC_AVG_CNFG1 0x07 | |
37 | #define MAX8925_ADC_ACQ_CNFG1 0x08 | |
38 | #define MAX8925_ADC_ACQ_CNFG2 0x09 | |
39 | /* 2 bytes registers in below. MSB is 1st, LSB is 2nd. */ | |
40 | #define MAX8925_ADC_AUX2 0x62 | |
41 | #define MAX8925_ADC_VCHG 0x64 | |
42 | #define MAX8925_ADC_VBBATT 0x66 | |
43 | #define MAX8925_ADC_VMBATT 0x68 | |
44 | #define MAX8925_ADC_ISNS 0x6a | |
45 | #define MAX8925_ADC_THM 0x6c | |
46 | #define MAX8925_ADC_TDIE 0x6e | |
47 | #define MAX8925_CMD_AUX2 0xc8 | |
48 | #define MAX8925_CMD_VCHG 0xd0 | |
49 | #define MAX8925_CMD_VBBATT 0xd8 | |
50 | #define MAX8925_CMD_VMBATT 0xe0 | |
51 | #define MAX8925_CMD_ISNS 0xe8 | |
52 | #define MAX8925_CMD_THM 0xf0 | |
53 | #define MAX8925_CMD_TDIE 0xf8 | |
54 | ||
55 | enum { | |
56 | MEASURE_AUX2, | |
57 | MEASURE_VCHG, | |
58 | MEASURE_VBBATT, | |
59 | MEASURE_VMBATT, | |
60 | MEASURE_ISNS, | |
61 | MEASURE_THM, | |
62 | MEASURE_TDIE, | |
63 | MEASURE_MAX, | |
64 | }; | |
65 | ||
66 | struct max8925_power_info { | |
67 | struct max8925_chip *chip; | |
68 | struct i2c_client *gpm; | |
69 | struct i2c_client *adc; | |
70 | ||
71 | struct power_supply ac; | |
72 | struct power_supply usb; | |
73 | struct power_supply battery; | |
74 | int irq_base; | |
75 | unsigned ac_online:1; | |
76 | unsigned usb_online:1; | |
77 | unsigned bat_online:1; | |
78 | unsigned chg_mode:2; | |
79 | unsigned batt_detect:1; /* detecing MB by ID pin */ | |
80 | unsigned topoff_threshold:2; | |
81 | unsigned fast_charge:3; | |
92de378b | 82 | unsigned no_temp_support:1; |
5ba1fa0a | 83 | unsigned no_insert_detect:1; |
28db3888 HZ |
84 | |
85 | int (*set_charger) (int); | |
86 | }; | |
87 | ||
88 | static int __set_charger(struct max8925_power_info *info, int enable) | |
89 | { | |
90 | struct max8925_chip *chip = info->chip; | |
91 | if (enable) { | |
92 | /* enable charger in platform */ | |
93 | if (info->set_charger) | |
94 | info->set_charger(1); | |
95 | /* enable charger */ | |
96 | max8925_set_bits(info->gpm, MAX8925_CHG_CNTL1, 1 << 7, 0); | |
97 | } else { | |
98 | /* disable charge */ | |
99 | max8925_set_bits(info->gpm, MAX8925_CHG_CNTL1, 1 << 7, 1 << 7); | |
100 | if (info->set_charger) | |
101 | info->set_charger(0); | |
102 | } | |
103 | dev_dbg(chip->dev, "%s\n", (enable) ? "Enable charger" | |
104 | : "Disable charger"); | |
105 | return 0; | |
106 | } | |
107 | ||
108 | static irqreturn_t max8925_charger_handler(int irq, void *data) | |
109 | { | |
110 | struct max8925_power_info *info = (struct max8925_power_info *)data; | |
111 | struct max8925_chip *chip = info->chip; | |
112 | ||
113 | switch (irq - chip->irq_base) { | |
114 | case MAX8925_IRQ_VCHG_DC_R: | |
115 | info->ac_online = 1; | |
116 | __set_charger(info, 1); | |
117 | dev_dbg(chip->dev, "Adapter inserted\n"); | |
118 | break; | |
119 | case MAX8925_IRQ_VCHG_DC_F: | |
120 | info->ac_online = 0; | |
121 | __set_charger(info, 0); | |
92de378b | 122 | dev_dbg(chip->dev, "Adapter removed\n"); |
28db3888 | 123 | break; |
28db3888 HZ |
124 | case MAX8925_IRQ_VCHG_THM_OK_F: |
125 | /* Battery is not ready yet */ | |
126 | dev_dbg(chip->dev, "Battery temperature is out of range\n"); | |
127 | case MAX8925_IRQ_VCHG_DC_OVP: | |
128 | dev_dbg(chip->dev, "Error detection\n"); | |
129 | __set_charger(info, 0); | |
130 | break; | |
131 | case MAX8925_IRQ_VCHG_THM_OK_R: | |
132 | /* Battery is ready now */ | |
133 | dev_dbg(chip->dev, "Battery temperature is in range\n"); | |
134 | break; | |
135 | case MAX8925_IRQ_VCHG_SYSLOW_R: | |
136 | /* VSYS is low */ | |
137 | dev_info(chip->dev, "Sys power is too low\n"); | |
138 | break; | |
139 | case MAX8925_IRQ_VCHG_SYSLOW_F: | |
140 | dev_dbg(chip->dev, "Sys power is above low threshold\n"); | |
141 | break; | |
142 | case MAX8925_IRQ_VCHG_DONE: | |
143 | __set_charger(info, 0); | |
144 | dev_dbg(chip->dev, "Charging is done\n"); | |
145 | break; | |
146 | case MAX8925_IRQ_VCHG_TOPOFF: | |
147 | dev_dbg(chip->dev, "Charging in top-off mode\n"); | |
148 | break; | |
149 | case MAX8925_IRQ_VCHG_TMR_FAULT: | |
150 | __set_charger(info, 0); | |
151 | dev_dbg(chip->dev, "Safe timer is expired\n"); | |
152 | break; | |
153 | case MAX8925_IRQ_VCHG_RST: | |
154 | __set_charger(info, 0); | |
155 | dev_dbg(chip->dev, "Charger is reset\n"); | |
156 | break; | |
157 | } | |
158 | return IRQ_HANDLED; | |
159 | } | |
160 | ||
161 | static int start_measure(struct max8925_power_info *info, int type) | |
162 | { | |
163 | unsigned char buf[2] = {0, 0}; | |
b57f2f61 | 164 | int meas_cmd; |
28db3888 HZ |
165 | int meas_reg = 0, ret; |
166 | ||
167 | switch (type) { | |
168 | case MEASURE_VCHG: | |
b57f2f61 | 169 | meas_cmd = MAX8925_CMD_VCHG; |
28db3888 HZ |
170 | meas_reg = MAX8925_ADC_VCHG; |
171 | break; | |
172 | case MEASURE_VBBATT: | |
b57f2f61 | 173 | meas_cmd = MAX8925_CMD_VBBATT; |
28db3888 HZ |
174 | meas_reg = MAX8925_ADC_VBBATT; |
175 | break; | |
176 | case MEASURE_VMBATT: | |
b57f2f61 | 177 | meas_cmd = MAX8925_CMD_VMBATT; |
28db3888 HZ |
178 | meas_reg = MAX8925_ADC_VMBATT; |
179 | break; | |
180 | case MEASURE_ISNS: | |
b57f2f61 | 181 | meas_cmd = MAX8925_CMD_ISNS; |
28db3888 HZ |
182 | meas_reg = MAX8925_ADC_ISNS; |
183 | break; | |
184 | default: | |
185 | return -EINVAL; | |
186 | } | |
187 | ||
b57f2f61 | 188 | max8925_reg_write(info->adc, meas_cmd, 0); |
28db3888 | 189 | max8925_bulk_read(info->adc, meas_reg, 2, buf); |
9c9cf9e2 | 190 | ret = ((buf[0]<<8) | buf[1]) >> 4; |
28db3888 HZ |
191 | |
192 | return ret; | |
193 | } | |
194 | ||
195 | static int max8925_ac_get_prop(struct power_supply *psy, | |
196 | enum power_supply_property psp, | |
197 | union power_supply_propval *val) | |
198 | { | |
199 | struct max8925_power_info *info = dev_get_drvdata(psy->dev->parent); | |
200 | int ret = 0; | |
201 | ||
202 | switch (psp) { | |
203 | case POWER_SUPPLY_PROP_ONLINE: | |
204 | val->intval = info->ac_online; | |
205 | break; | |
206 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: | |
207 | if (info->ac_online) { | |
208 | ret = start_measure(info, MEASURE_VCHG); | |
209 | if (ret >= 0) { | |
9c9cf9e2 | 210 | val->intval = ret * 2000; /* unit is uV */ |
28db3888 HZ |
211 | goto out; |
212 | } | |
213 | } | |
214 | ret = -ENODATA; | |
215 | break; | |
216 | default: | |
217 | ret = -ENODEV; | |
218 | break; | |
219 | } | |
220 | out: | |
221 | return ret; | |
222 | } | |
223 | ||
224 | static enum power_supply_property max8925_ac_props[] = { | |
225 | POWER_SUPPLY_PROP_ONLINE, | |
226 | POWER_SUPPLY_PROP_VOLTAGE_NOW, | |
227 | }; | |
228 | ||
229 | static int max8925_usb_get_prop(struct power_supply *psy, | |
230 | enum power_supply_property psp, | |
231 | union power_supply_propval *val) | |
232 | { | |
233 | struct max8925_power_info *info = dev_get_drvdata(psy->dev->parent); | |
234 | int ret = 0; | |
235 | ||
236 | switch (psp) { | |
237 | case POWER_SUPPLY_PROP_ONLINE: | |
238 | val->intval = info->usb_online; | |
239 | break; | |
240 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: | |
241 | if (info->usb_online) { | |
242 | ret = start_measure(info, MEASURE_VCHG); | |
243 | if (ret >= 0) { | |
9c9cf9e2 | 244 | val->intval = ret * 2000; /* unit is uV */ |
28db3888 HZ |
245 | goto out; |
246 | } | |
247 | } | |
248 | ret = -ENODATA; | |
249 | break; | |
250 | default: | |
251 | ret = -ENODEV; | |
252 | break; | |
253 | } | |
254 | out: | |
255 | return ret; | |
256 | } | |
257 | ||
258 | static enum power_supply_property max8925_usb_props[] = { | |
259 | POWER_SUPPLY_PROP_ONLINE, | |
260 | POWER_SUPPLY_PROP_VOLTAGE_NOW, | |
261 | }; | |
262 | ||
263 | static int max8925_bat_get_prop(struct power_supply *psy, | |
264 | enum power_supply_property psp, | |
265 | union power_supply_propval *val) | |
266 | { | |
267 | struct max8925_power_info *info = dev_get_drvdata(psy->dev->parent); | |
28db3888 HZ |
268 | int ret = 0; |
269 | ||
270 | switch (psp) { | |
271 | case POWER_SUPPLY_PROP_ONLINE: | |
272 | val->intval = info->bat_online; | |
273 | break; | |
274 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: | |
275 | if (info->bat_online) { | |
276 | ret = start_measure(info, MEASURE_VMBATT); | |
277 | if (ret >= 0) { | |
9c9cf9e2 | 278 | val->intval = ret * 2000; /* unit is uV */ |
28db3888 HZ |
279 | ret = 0; |
280 | break; | |
281 | } | |
282 | } | |
283 | ret = -ENODATA; | |
284 | break; | |
285 | case POWER_SUPPLY_PROP_CURRENT_NOW: | |
286 | if (info->bat_online) { | |
287 | ret = start_measure(info, MEASURE_ISNS); | |
288 | if (ret >= 0) { | |
9c9cf9e2 PR |
289 | /* assume r_sns is 0.02 */ |
290 | ret = ((ret * 6250) - 3125) /* uA */; | |
28db3888 HZ |
291 | val->intval = 0; |
292 | if (ret > 0) | |
293 | val->intval = ret; /* unit is mA */ | |
294 | ret = 0; | |
295 | break; | |
296 | } | |
297 | } | |
298 | ret = -ENODATA; | |
299 | break; | |
300 | case POWER_SUPPLY_PROP_CHARGE_TYPE: | |
301 | if (!info->bat_online) { | |
302 | ret = -ENODATA; | |
303 | break; | |
304 | } | |
305 | ret = max8925_reg_read(info->gpm, MAX8925_CHG_STATUS); | |
306 | ret = (ret & MAX8925_CHG_STAT_MODE_MASK) >> 2; | |
307 | switch (ret) { | |
308 | case 1: | |
309 | val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST; | |
310 | break; | |
311 | case 0: | |
312 | case 2: | |
313 | val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE; | |
314 | break; | |
315 | case 3: | |
316 | val->intval = POWER_SUPPLY_CHARGE_TYPE_NONE; | |
317 | break; | |
318 | } | |
319 | ret = 0; | |
320 | break; | |
321 | case POWER_SUPPLY_PROP_STATUS: | |
322 | if (!info->bat_online) { | |
323 | ret = -ENODATA; | |
324 | break; | |
325 | } | |
326 | ret = max8925_reg_read(info->gpm, MAX8925_CHG_STATUS); | |
327 | if (info->usb_online || info->ac_online) { | |
328 | val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING; | |
329 | if (ret & MAX8925_CHG_STAT_EN_MASK) | |
330 | val->intval = POWER_SUPPLY_STATUS_CHARGING; | |
331 | } else | |
332 | val->intval = POWER_SUPPLY_STATUS_DISCHARGING; | |
333 | ret = 0; | |
334 | break; | |
335 | default: | |
336 | ret = -ENODEV; | |
337 | break; | |
338 | } | |
339 | return ret; | |
340 | } | |
341 | ||
342 | static enum power_supply_property max8925_battery_props[] = { | |
343 | POWER_SUPPLY_PROP_ONLINE, | |
344 | POWER_SUPPLY_PROP_VOLTAGE_NOW, | |
345 | POWER_SUPPLY_PROP_CURRENT_NOW, | |
346 | POWER_SUPPLY_PROP_CHARGE_TYPE, | |
347 | POWER_SUPPLY_PROP_STATUS, | |
348 | }; | |
349 | ||
350 | #define REQUEST_IRQ(_irq, _name) \ | |
351 | do { \ | |
352 | ret = request_threaded_irq(chip->irq_base + _irq, NULL, \ | |
353 | max8925_charger_handler, \ | |
354 | IRQF_ONESHOT, _name, info); \ | |
355 | if (ret) \ | |
356 | dev_err(chip->dev, "Failed to request IRQ #%d: %d\n", \ | |
357 | _irq, ret); \ | |
358 | } while (0) | |
359 | ||
c8afa640 | 360 | static int max8925_init_charger(struct max8925_chip *chip, |
28db3888 HZ |
361 | struct max8925_power_info *info) |
362 | { | |
363 | int ret; | |
364 | ||
365 | REQUEST_IRQ(MAX8925_IRQ_VCHG_DC_OVP, "ac-ovp"); | |
5ba1fa0a PR |
366 | if (!info->no_insert_detect) { |
367 | REQUEST_IRQ(MAX8925_IRQ_VCHG_DC_F, "ac-remove"); | |
368 | REQUEST_IRQ(MAX8925_IRQ_VCHG_DC_R, "ac-insert"); | |
369 | } | |
92de378b PR |
370 | if (!info->no_temp_support) { |
371 | REQUEST_IRQ(MAX8925_IRQ_VCHG_THM_OK_R, "batt-temp-in-range"); | |
372 | REQUEST_IRQ(MAX8925_IRQ_VCHG_THM_OK_F, "batt-temp-out-range"); | |
373 | } | |
28db3888 HZ |
374 | REQUEST_IRQ(MAX8925_IRQ_VCHG_SYSLOW_F, "vsys-high"); |
375 | REQUEST_IRQ(MAX8925_IRQ_VCHG_SYSLOW_R, "vsys-low"); | |
376 | REQUEST_IRQ(MAX8925_IRQ_VCHG_RST, "charger-reset"); | |
377 | REQUEST_IRQ(MAX8925_IRQ_VCHG_DONE, "charger-done"); | |
378 | REQUEST_IRQ(MAX8925_IRQ_VCHG_TOPOFF, "charger-topoff"); | |
379 | REQUEST_IRQ(MAX8925_IRQ_VCHG_TMR_FAULT, "charger-timer-expire"); | |
380 | ||
28db3888 HZ |
381 | info->usb_online = 0; |
382 | info->bat_online = 0; | |
00a159a5 PR |
383 | |
384 | /* check for power - can miss interrupt at boot time */ | |
385 | if (start_measure(info, MEASURE_VCHG) * 2000 > 500000) | |
386 | info->ac_online = 1; | |
387 | else | |
388 | info->ac_online = 0; | |
389 | ||
28db3888 HZ |
390 | ret = max8925_reg_read(info->gpm, MAX8925_CHG_STATUS); |
391 | if (ret >= 0) { | |
392 | /* | |
393 | * If battery detection is enabled, ID pin of battery is | |
394 | * connected to MBDET pin of MAX8925. It could be used to | |
395 | * detect battery presence. | |
396 | * Otherwise, we have to assume that battery is always on. | |
397 | */ | |
398 | if (info->batt_detect) | |
399 | info->bat_online = (ret & MAX8925_CHG_MBDET) ? 0 : 1; | |
400 | else | |
401 | info->bat_online = 1; | |
402 | if (ret & MAX8925_CHG_AC_RANGE_MASK) | |
403 | info->ac_online = 1; | |
404 | else | |
405 | info->ac_online = 0; | |
406 | } | |
407 | /* disable charge */ | |
408 | max8925_set_bits(info->gpm, MAX8925_CHG_CNTL1, 1 << 7, 1 << 7); | |
409 | /* set charging current in charge topoff mode */ | |
410 | max8925_set_bits(info->gpm, MAX8925_CHG_CNTL1, 3 << 5, | |
411 | info->topoff_threshold << 5); | |
412 | /* set charing current in fast charge mode */ | |
413 | max8925_set_bits(info->gpm, MAX8925_CHG_CNTL1, 7, info->fast_charge); | |
414 | ||
415 | return 0; | |
416 | } | |
417 | ||
415ec69f | 418 | static int max8925_deinit_charger(struct max8925_power_info *info) |
28db3888 HZ |
419 | { |
420 | struct max8925_chip *chip = info->chip; | |
421 | int irq; | |
422 | ||
423 | irq = chip->irq_base + MAX8925_IRQ_VCHG_DC_OVP; | |
424 | for (; irq <= chip->irq_base + MAX8925_IRQ_VCHG_TMR_FAULT; irq++) | |
425 | free_irq(irq, info); | |
426 | ||
427 | return 0; | |
428 | } | |
429 | ||
eba3b670 QX |
430 | #ifdef CONFIG_OF |
431 | static struct max8925_power_pdata * | |
432 | max8925_power_dt_init(struct platform_device *pdev) | |
433 | { | |
434 | struct device_node *nproot = pdev->dev.parent->of_node; | |
435 | struct device_node *np; | |
436 | int batt_detect; | |
437 | int topoff_threshold; | |
438 | int fast_charge; | |
439 | int no_temp_support; | |
440 | int no_insert_detect; | |
441 | struct max8925_power_pdata *pdata; | |
442 | ||
443 | if (!nproot) | |
444 | return pdev->dev.platform_data; | |
445 | ||
446 | np = of_find_node_by_name(nproot, "charger"); | |
447 | if (!np) { | |
448 | dev_err(&pdev->dev, "failed to find charger node\n"); | |
449 | return NULL; | |
450 | } | |
451 | ||
452 | pdata = devm_kzalloc(&pdev->dev, | |
453 | sizeof(struct max8925_power_pdata), | |
454 | GFP_KERNEL); | |
455 | ||
456 | of_property_read_u32(np, "topoff-threshold", &topoff_threshold); | |
457 | of_property_read_u32(np, "batt-detect", &batt_detect); | |
458 | of_property_read_u32(np, "fast-charge", &fast_charge); | |
459 | of_property_read_u32(np, "no-insert-detect", &no_insert_detect); | |
460 | of_property_read_u32(np, "no-temp-support", &no_temp_support); | |
461 | ||
462 | pdata->batt_detect = batt_detect; | |
463 | pdata->fast_charge = fast_charge; | |
464 | pdata->topoff_threshold = topoff_threshold; | |
465 | pdata->no_insert_detect = no_insert_detect; | |
466 | pdata->no_temp_support = no_temp_support; | |
467 | ||
468 | return pdata; | |
469 | } | |
470 | #else | |
471 | static struct max8925_power_pdata * | |
472 | max8925_power_dt_init(struct platform_device *pdev) | |
473 | { | |
474 | return pdev->dev.platform_data; | |
475 | } | |
476 | #endif | |
477 | ||
c8afa640 | 478 | static int max8925_power_probe(struct platform_device *pdev) |
28db3888 HZ |
479 | { |
480 | struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent); | |
28db3888 HZ |
481 | struct max8925_power_pdata *pdata = NULL; |
482 | struct max8925_power_info *info; | |
483 | int ret; | |
484 | ||
eba3b670 | 485 | pdata = max8925_power_dt_init(pdev); |
28db3888 HZ |
486 | if (!pdata) { |
487 | dev_err(&pdev->dev, "platform data isn't assigned to " | |
488 | "power supply\n"); | |
489 | return -EINVAL; | |
490 | } | |
491 | ||
feeb3a92 JH |
492 | info = devm_kzalloc(&pdev->dev, sizeof(struct max8925_power_info), |
493 | GFP_KERNEL); | |
28db3888 HZ |
494 | if (!info) |
495 | return -ENOMEM; | |
496 | info->chip = chip; | |
497 | info->gpm = chip->i2c; | |
498 | info->adc = chip->adc; | |
2402ca5e | 499 | platform_set_drvdata(pdev, info); |
28db3888 HZ |
500 | |
501 | info->ac.name = "max8925-ac"; | |
502 | info->ac.type = POWER_SUPPLY_TYPE_MAINS; | |
503 | info->ac.properties = max8925_ac_props; | |
504 | info->ac.num_properties = ARRAY_SIZE(max8925_ac_props); | |
505 | info->ac.get_property = max8925_ac_get_prop; | |
e7a5f6d5 PR |
506 | info->ac.supplied_to = pdata->supplied_to; |
507 | info->ac.num_supplicants = pdata->num_supplicants; | |
28db3888 HZ |
508 | ret = power_supply_register(&pdev->dev, &info->ac); |
509 | if (ret) | |
510 | goto out; | |
511 | info->ac.dev->parent = &pdev->dev; | |
512 | ||
513 | info->usb.name = "max8925-usb"; | |
514 | info->usb.type = POWER_SUPPLY_TYPE_USB; | |
515 | info->usb.properties = max8925_usb_props; | |
516 | info->usb.num_properties = ARRAY_SIZE(max8925_usb_props); | |
517 | info->usb.get_property = max8925_usb_get_prop; | |
e7a5f6d5 PR |
518 | info->usb.supplied_to = pdata->supplied_to; |
519 | info->usb.num_supplicants = pdata->num_supplicants; | |
520 | ||
28db3888 HZ |
521 | ret = power_supply_register(&pdev->dev, &info->usb); |
522 | if (ret) | |
523 | goto out_usb; | |
524 | info->usb.dev->parent = &pdev->dev; | |
525 | ||
526 | info->battery.name = "max8925-battery"; | |
527 | info->battery.type = POWER_SUPPLY_TYPE_BATTERY; | |
528 | info->battery.properties = max8925_battery_props; | |
529 | info->battery.num_properties = ARRAY_SIZE(max8925_battery_props); | |
530 | info->battery.get_property = max8925_bat_get_prop; | |
531 | ret = power_supply_register(&pdev->dev, &info->battery); | |
532 | if (ret) | |
533 | goto out_battery; | |
534 | info->battery.dev->parent = &pdev->dev; | |
535 | ||
536 | info->batt_detect = pdata->batt_detect; | |
537 | info->topoff_threshold = pdata->topoff_threshold; | |
538 | info->fast_charge = pdata->fast_charge; | |
539 | info->set_charger = pdata->set_charger; | |
92de378b | 540 | info->no_temp_support = pdata->no_temp_support; |
5ba1fa0a | 541 | info->no_insert_detect = pdata->no_insert_detect; |
28db3888 HZ |
542 | |
543 | max8925_init_charger(chip, info); | |
544 | return 0; | |
545 | out_battery: | |
546 | power_supply_unregister(&info->battery); | |
547 | out_usb: | |
548 | power_supply_unregister(&info->ac); | |
549 | out: | |
28db3888 HZ |
550 | return ret; |
551 | } | |
552 | ||
415ec69f | 553 | static int max8925_power_remove(struct platform_device *pdev) |
28db3888 HZ |
554 | { |
555 | struct max8925_power_info *info = platform_get_drvdata(pdev); | |
556 | ||
557 | if (info) { | |
558 | power_supply_unregister(&info->ac); | |
559 | power_supply_unregister(&info->usb); | |
560 | power_supply_unregister(&info->battery); | |
561 | max8925_deinit_charger(info); | |
28db3888 HZ |
562 | } |
563 | return 0; | |
564 | } | |
565 | ||
566 | static struct platform_driver max8925_power_driver = { | |
567 | .probe = max8925_power_probe, | |
28ea73f4 | 568 | .remove = max8925_power_remove, |
28db3888 HZ |
569 | .driver = { |
570 | .name = "max8925-power", | |
571 | }, | |
572 | }; | |
573 | ||
300bac7f | 574 | module_platform_driver(max8925_power_driver); |
28db3888 HZ |
575 | |
576 | MODULE_LICENSE("GPL"); | |
577 | MODULE_DESCRIPTION("Power supply driver for MAX8925"); | |
578 | MODULE_ALIAS("platform:max8925-power"); |