Commit | Line | Data |
---|---|---|
3961f7c3 MB |
1 | /* |
2 | * PMU driver for Wolfson Microelectronics wm831x PMICs | |
3 | * | |
4 | * Copyright 2009 Wolfson Microelectronics PLC. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #include <linux/module.h> | |
12 | #include <linux/err.h> | |
13 | #include <linux/platform_device.h> | |
14 | #include <linux/power_supply.h> | |
5a0e3ad6 | 15 | #include <linux/slab.h> |
3961f7c3 MB |
16 | |
17 | #include <linux/mfd/wm831x/core.h> | |
18 | #include <linux/mfd/wm831x/auxadc.h> | |
19 | #include <linux/mfd/wm831x/pmu.h> | |
20 | #include <linux/mfd/wm831x/pdata.h> | |
21 | ||
22 | struct wm831x_power { | |
23 | struct wm831x *wm831x; | |
24 | struct power_supply wall; | |
3961f7c3 MB |
25 | struct power_supply usb; |
26 | struct power_supply battery; | |
ccf8fa2d MB |
27 | char wall_name[20]; |
28 | char usb_name[20]; | |
29 | char battery_name[20]; | |
3961f7c3 MB |
30 | }; |
31 | ||
32 | static int wm831x_power_check_online(struct wm831x *wm831x, int supply, | |
33 | union power_supply_propval *val) | |
34 | { | |
35 | int ret; | |
36 | ||
37 | ret = wm831x_reg_read(wm831x, WM831X_SYSTEM_STATUS); | |
38 | if (ret < 0) | |
39 | return ret; | |
40 | ||
41 | if (ret & supply) | |
42 | val->intval = 1; | |
43 | else | |
44 | val->intval = 0; | |
45 | ||
46 | return 0; | |
47 | } | |
48 | ||
49 | static int wm831x_power_read_voltage(struct wm831x *wm831x, | |
50 | enum wm831x_auxadc src, | |
51 | union power_supply_propval *val) | |
52 | { | |
53 | int ret; | |
54 | ||
55 | ret = wm831x_auxadc_read_uv(wm831x, src); | |
56 | if (ret >= 0) | |
57 | val->intval = ret; | |
58 | ||
59 | return ret; | |
60 | } | |
61 | ||
62 | /********************************************************************* | |
63 | * WALL Power | |
64 | *********************************************************************/ | |
65 | static int wm831x_wall_get_prop(struct power_supply *psy, | |
66 | enum power_supply_property psp, | |
67 | union power_supply_propval *val) | |
68 | { | |
69 | struct wm831x_power *wm831x_power = dev_get_drvdata(psy->dev->parent); | |
70 | struct wm831x *wm831x = wm831x_power->wm831x; | |
71 | int ret = 0; | |
72 | ||
73 | switch (psp) { | |
74 | case POWER_SUPPLY_PROP_ONLINE: | |
75 | ret = wm831x_power_check_online(wm831x, WM831X_PWR_WALL, val); | |
76 | break; | |
77 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: | |
78 | ret = wm831x_power_read_voltage(wm831x, WM831X_AUX_WALL, val); | |
79 | break; | |
80 | default: | |
81 | ret = -EINVAL; | |
82 | break; | |
83 | } | |
84 | ||
85 | return ret; | |
86 | } | |
87 | ||
88 | static enum power_supply_property wm831x_wall_props[] = { | |
89 | POWER_SUPPLY_PROP_ONLINE, | |
90 | POWER_SUPPLY_PROP_VOLTAGE_NOW, | |
91 | }; | |
92 | ||
93 | /********************************************************************* | |
94 | * USB Power | |
95 | *********************************************************************/ | |
96 | static int wm831x_usb_get_prop(struct power_supply *psy, | |
97 | enum power_supply_property psp, | |
98 | union power_supply_propval *val) | |
99 | { | |
100 | struct wm831x_power *wm831x_power = dev_get_drvdata(psy->dev->parent); | |
101 | struct wm831x *wm831x = wm831x_power->wm831x; | |
102 | int ret = 0; | |
103 | ||
104 | switch (psp) { | |
105 | case POWER_SUPPLY_PROP_ONLINE: | |
106 | ret = wm831x_power_check_online(wm831x, WM831X_PWR_USB, val); | |
107 | break; | |
108 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: | |
109 | ret = wm831x_power_read_voltage(wm831x, WM831X_AUX_USB, val); | |
110 | break; | |
111 | default: | |
112 | ret = -EINVAL; | |
113 | break; | |
114 | } | |
115 | ||
116 | return ret; | |
117 | } | |
118 | ||
119 | static enum power_supply_property wm831x_usb_props[] = { | |
120 | POWER_SUPPLY_PROP_ONLINE, | |
121 | POWER_SUPPLY_PROP_VOLTAGE_NOW, | |
122 | }; | |
123 | ||
124 | /********************************************************************* | |
125 | * Battery properties | |
126 | *********************************************************************/ | |
127 | ||
128 | struct chg_map { | |
129 | int val; | |
130 | int reg_val; | |
131 | }; | |
132 | ||
133 | static struct chg_map trickle_ilims[] = { | |
134 | { 50, 0 << WM831X_CHG_TRKL_ILIM_SHIFT }, | |
135 | { 100, 1 << WM831X_CHG_TRKL_ILIM_SHIFT }, | |
136 | { 150, 2 << WM831X_CHG_TRKL_ILIM_SHIFT }, | |
137 | { 200, 3 << WM831X_CHG_TRKL_ILIM_SHIFT }, | |
138 | }; | |
139 | ||
140 | static struct chg_map vsels[] = { | |
141 | { 4050, 0 << WM831X_CHG_VSEL_SHIFT }, | |
142 | { 4100, 1 << WM831X_CHG_VSEL_SHIFT }, | |
143 | { 4150, 2 << WM831X_CHG_VSEL_SHIFT }, | |
144 | { 4200, 3 << WM831X_CHG_VSEL_SHIFT }, | |
145 | }; | |
146 | ||
147 | static struct chg_map fast_ilims[] = { | |
148 | { 0, 0 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
149 | { 50, 1 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
150 | { 100, 2 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
151 | { 150, 3 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
152 | { 200, 4 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
153 | { 250, 5 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
154 | { 300, 6 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
155 | { 350, 7 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
156 | { 400, 8 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
157 | { 450, 9 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
158 | { 500, 10 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
159 | { 600, 11 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
160 | { 700, 12 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
161 | { 800, 13 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
162 | { 900, 14 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
163 | { 1000, 15 << WM831X_CHG_FAST_ILIM_SHIFT }, | |
164 | }; | |
165 | ||
166 | static struct chg_map eoc_iterms[] = { | |
167 | { 20, 0 << WM831X_CHG_ITERM_SHIFT }, | |
168 | { 30, 1 << WM831X_CHG_ITERM_SHIFT }, | |
169 | { 40, 2 << WM831X_CHG_ITERM_SHIFT }, | |
170 | { 50, 3 << WM831X_CHG_ITERM_SHIFT }, | |
171 | { 60, 4 << WM831X_CHG_ITERM_SHIFT }, | |
172 | { 70, 5 << WM831X_CHG_ITERM_SHIFT }, | |
173 | { 80, 6 << WM831X_CHG_ITERM_SHIFT }, | |
174 | { 90, 7 << WM831X_CHG_ITERM_SHIFT }, | |
175 | }; | |
176 | ||
177 | static struct chg_map chg_times[] = { | |
178 | { 60, 0 << WM831X_CHG_TIME_SHIFT }, | |
179 | { 90, 1 << WM831X_CHG_TIME_SHIFT }, | |
180 | { 120, 2 << WM831X_CHG_TIME_SHIFT }, | |
181 | { 150, 3 << WM831X_CHG_TIME_SHIFT }, | |
182 | { 180, 4 << WM831X_CHG_TIME_SHIFT }, | |
183 | { 210, 5 << WM831X_CHG_TIME_SHIFT }, | |
184 | { 240, 6 << WM831X_CHG_TIME_SHIFT }, | |
185 | { 270, 7 << WM831X_CHG_TIME_SHIFT }, | |
186 | { 300, 8 << WM831X_CHG_TIME_SHIFT }, | |
187 | { 330, 9 << WM831X_CHG_TIME_SHIFT }, | |
188 | { 360, 10 << WM831X_CHG_TIME_SHIFT }, | |
189 | { 390, 11 << WM831X_CHG_TIME_SHIFT }, | |
190 | { 420, 12 << WM831X_CHG_TIME_SHIFT }, | |
191 | { 450, 13 << WM831X_CHG_TIME_SHIFT }, | |
192 | { 480, 14 << WM831X_CHG_TIME_SHIFT }, | |
193 | { 510, 15 << WM831X_CHG_TIME_SHIFT }, | |
194 | }; | |
195 | ||
196 | static void wm831x_battey_apply_config(struct wm831x *wm831x, | |
197 | struct chg_map *map, int count, int val, | |
198 | int *reg, const char *name, | |
199 | const char *units) | |
200 | { | |
201 | int i; | |
202 | ||
203 | for (i = 0; i < count; i++) | |
204 | if (val == map[i].val) | |
205 | break; | |
206 | if (i == count) { | |
207 | dev_err(wm831x->dev, "Invalid %s %d%s\n", | |
208 | name, val, units); | |
209 | } else { | |
210 | *reg |= map[i].reg_val; | |
211 | dev_dbg(wm831x->dev, "Set %s of %d%s\n", name, val, units); | |
212 | } | |
213 | } | |
214 | ||
215 | static void wm831x_config_battery(struct wm831x *wm831x) | |
216 | { | |
217 | struct wm831x_pdata *wm831x_pdata = wm831x->dev->platform_data; | |
218 | struct wm831x_battery_pdata *pdata; | |
219 | int ret, reg1, reg2; | |
220 | ||
221 | if (!wm831x_pdata || !wm831x_pdata->battery) { | |
222 | dev_warn(wm831x->dev, | |
223 | "No battery charger configuration\n"); | |
224 | return; | |
225 | } | |
226 | ||
227 | pdata = wm831x_pdata->battery; | |
228 | ||
229 | reg1 = 0; | |
230 | reg2 = 0; | |
231 | ||
232 | if (!pdata->enable) { | |
233 | dev_info(wm831x->dev, "Battery charger disabled\n"); | |
234 | return; | |
235 | } | |
236 | ||
237 | reg1 |= WM831X_CHG_ENA; | |
238 | if (pdata->off_mask) | |
239 | reg2 |= WM831X_CHG_OFF_MSK; | |
240 | if (pdata->fast_enable) | |
241 | reg1 |= WM831X_CHG_FAST; | |
242 | ||
243 | wm831x_battey_apply_config(wm831x, trickle_ilims, | |
244 | ARRAY_SIZE(trickle_ilims), | |
245 | pdata->trickle_ilim, ®2, | |
246 | "trickle charge current limit", "mA"); | |
247 | ||
248 | wm831x_battey_apply_config(wm831x, vsels, ARRAY_SIZE(vsels), | |
249 | pdata->vsel, ®2, | |
250 | "target voltage", "mV"); | |
251 | ||
252 | wm831x_battey_apply_config(wm831x, fast_ilims, ARRAY_SIZE(fast_ilims), | |
253 | pdata->fast_ilim, ®2, | |
254 | "fast charge current limit", "mA"); | |
255 | ||
256 | wm831x_battey_apply_config(wm831x, eoc_iterms, ARRAY_SIZE(eoc_iterms), | |
257 | pdata->eoc_iterm, ®1, | |
258 | "end of charge current threshold", "mA"); | |
259 | ||
260 | wm831x_battey_apply_config(wm831x, chg_times, ARRAY_SIZE(chg_times), | |
261 | pdata->timeout, ®2, | |
262 | "charger timeout", "min"); | |
263 | ||
264 | ret = wm831x_reg_unlock(wm831x); | |
265 | if (ret != 0) { | |
266 | dev_err(wm831x->dev, "Failed to unlock registers: %d\n", ret); | |
267 | return; | |
268 | } | |
269 | ||
270 | ret = wm831x_set_bits(wm831x, WM831X_CHARGER_CONTROL_1, | |
271 | WM831X_CHG_ENA_MASK | | |
272 | WM831X_CHG_FAST_MASK | | |
3961f7c3 MB |
273 | WM831X_CHG_ITERM_MASK, |
274 | reg1); | |
275 | if (ret != 0) | |
276 | dev_err(wm831x->dev, "Failed to set charger control 1: %d\n", | |
277 | ret); | |
278 | ||
279 | ret = wm831x_set_bits(wm831x, WM831X_CHARGER_CONTROL_2, | |
280 | WM831X_CHG_OFF_MSK | | |
281 | WM831X_CHG_TIME_MASK | | |
282 | WM831X_CHG_FAST_ILIM_MASK | | |
283 | WM831X_CHG_TRKL_ILIM_MASK | | |
284 | WM831X_CHG_VSEL_MASK, | |
285 | reg2); | |
286 | if (ret != 0) | |
287 | dev_err(wm831x->dev, "Failed to set charger control 2: %d\n", | |
288 | ret); | |
289 | ||
290 | wm831x_reg_lock(wm831x); | |
291 | } | |
292 | ||
293 | static int wm831x_bat_check_status(struct wm831x *wm831x, int *status) | |
294 | { | |
295 | int ret; | |
296 | ||
297 | ret = wm831x_reg_read(wm831x, WM831X_SYSTEM_STATUS); | |
298 | if (ret < 0) | |
299 | return ret; | |
300 | ||
301 | if (ret & WM831X_PWR_SRC_BATT) { | |
302 | *status = POWER_SUPPLY_STATUS_DISCHARGING; | |
303 | return 0; | |
304 | } | |
305 | ||
306 | ret = wm831x_reg_read(wm831x, WM831X_CHARGER_STATUS); | |
307 | if (ret < 0) | |
308 | return ret; | |
309 | ||
310 | switch (ret & WM831X_CHG_STATE_MASK) { | |
311 | case WM831X_CHG_STATE_OFF: | |
312 | *status = POWER_SUPPLY_STATUS_NOT_CHARGING; | |
313 | break; | |
314 | case WM831X_CHG_STATE_TRICKLE: | |
315 | case WM831X_CHG_STATE_FAST: | |
316 | *status = POWER_SUPPLY_STATUS_CHARGING; | |
317 | break; | |
318 | ||
319 | default: | |
320 | *status = POWER_SUPPLY_STATUS_UNKNOWN; | |
321 | break; | |
322 | } | |
323 | ||
324 | return 0; | |
325 | } | |
326 | ||
327 | static int wm831x_bat_check_type(struct wm831x *wm831x, int *type) | |
328 | { | |
329 | int ret; | |
330 | ||
331 | ret = wm831x_reg_read(wm831x, WM831X_CHARGER_STATUS); | |
332 | if (ret < 0) | |
333 | return ret; | |
334 | ||
335 | switch (ret & WM831X_CHG_STATE_MASK) { | |
336 | case WM831X_CHG_STATE_TRICKLE: | |
337 | case WM831X_CHG_STATE_TRICKLE_OT: | |
338 | *type = POWER_SUPPLY_CHARGE_TYPE_TRICKLE; | |
339 | break; | |
340 | case WM831X_CHG_STATE_FAST: | |
341 | case WM831X_CHG_STATE_FAST_OT: | |
342 | *type = POWER_SUPPLY_CHARGE_TYPE_FAST; | |
343 | break; | |
344 | default: | |
345 | *type = POWER_SUPPLY_CHARGE_TYPE_NONE; | |
346 | break; | |
347 | } | |
348 | ||
349 | return 0; | |
350 | } | |
351 | ||
352 | static int wm831x_bat_check_health(struct wm831x *wm831x, int *health) | |
353 | { | |
354 | int ret; | |
355 | ||
356 | ret = wm831x_reg_read(wm831x, WM831X_CHARGER_STATUS); | |
357 | if (ret < 0) | |
358 | return ret; | |
359 | ||
360 | if (ret & WM831X_BATT_HOT_STS) { | |
361 | *health = POWER_SUPPLY_HEALTH_OVERHEAT; | |
362 | return 0; | |
363 | } | |
364 | ||
365 | if (ret & WM831X_BATT_COLD_STS) { | |
366 | *health = POWER_SUPPLY_HEALTH_COLD; | |
367 | return 0; | |
368 | } | |
369 | ||
370 | if (ret & WM831X_BATT_OV_STS) { | |
371 | *health = POWER_SUPPLY_HEALTH_OVERVOLTAGE; | |
372 | return 0; | |
373 | } | |
374 | ||
375 | switch (ret & WM831X_CHG_STATE_MASK) { | |
376 | case WM831X_CHG_STATE_TRICKLE_OT: | |
377 | case WM831X_CHG_STATE_FAST_OT: | |
378 | *health = POWER_SUPPLY_HEALTH_OVERHEAT; | |
379 | break; | |
380 | case WM831X_CHG_STATE_DEFECTIVE: | |
381 | *health = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE; | |
382 | break; | |
383 | default: | |
384 | *health = POWER_SUPPLY_HEALTH_GOOD; | |
385 | break; | |
386 | } | |
387 | ||
388 | return 0; | |
389 | } | |
390 | ||
391 | static int wm831x_bat_get_prop(struct power_supply *psy, | |
392 | enum power_supply_property psp, | |
393 | union power_supply_propval *val) | |
394 | { | |
395 | struct wm831x_power *wm831x_power = dev_get_drvdata(psy->dev->parent); | |
396 | struct wm831x *wm831x = wm831x_power->wm831x; | |
397 | int ret = 0; | |
398 | ||
399 | switch (psp) { | |
400 | case POWER_SUPPLY_PROP_STATUS: | |
401 | ret = wm831x_bat_check_status(wm831x, &val->intval); | |
402 | break; | |
403 | case POWER_SUPPLY_PROP_ONLINE: | |
404 | ret = wm831x_power_check_online(wm831x, WM831X_PWR_SRC_BATT, | |
405 | val); | |
406 | break; | |
407 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: | |
408 | ret = wm831x_power_read_voltage(wm831x, WM831X_AUX_BATT, val); | |
409 | break; | |
410 | case POWER_SUPPLY_PROP_HEALTH: | |
411 | ret = wm831x_bat_check_health(wm831x, &val->intval); | |
412 | break; | |
413 | case POWER_SUPPLY_PROP_CHARGE_TYPE: | |
414 | ret = wm831x_bat_check_type(wm831x, &val->intval); | |
415 | break; | |
416 | default: | |
417 | ret = -EINVAL; | |
418 | break; | |
419 | } | |
420 | ||
421 | return ret; | |
422 | } | |
423 | ||
424 | static enum power_supply_property wm831x_bat_props[] = { | |
425 | POWER_SUPPLY_PROP_STATUS, | |
426 | POWER_SUPPLY_PROP_ONLINE, | |
427 | POWER_SUPPLY_PROP_VOLTAGE_NOW, | |
428 | POWER_SUPPLY_PROP_HEALTH, | |
429 | POWER_SUPPLY_PROP_CHARGE_TYPE, | |
430 | }; | |
431 | ||
432 | static const char *wm831x_bat_irqs[] = { | |
433 | "BATT HOT", | |
434 | "BATT COLD", | |
435 | "BATT FAIL", | |
436 | "OV", | |
437 | "END", | |
438 | "TO", | |
439 | "MODE", | |
440 | "START", | |
441 | }; | |
442 | ||
443 | static irqreturn_t wm831x_bat_irq(int irq, void *data) | |
444 | { | |
445 | struct wm831x_power *wm831x_power = data; | |
446 | struct wm831x *wm831x = wm831x_power->wm831x; | |
447 | ||
448 | dev_dbg(wm831x->dev, "Battery status changed: %d\n", irq); | |
449 | ||
450 | /* The battery charger is autonomous so we don't need to do | |
451 | * anything except kick user space */ | |
452 | power_supply_changed(&wm831x_power->battery); | |
453 | ||
454 | return IRQ_HANDLED; | |
455 | } | |
456 | ||
457 | ||
3961f7c3 MB |
458 | /********************************************************************* |
459 | * Initialisation | |
460 | *********************************************************************/ | |
461 | ||
462 | static irqreturn_t wm831x_syslo_irq(int irq, void *data) | |
463 | { | |
464 | struct wm831x_power *wm831x_power = data; | |
465 | struct wm831x *wm831x = wm831x_power->wm831x; | |
466 | ||
467 | /* Not much we can actually *do* but tell people for | |
468 | * posterity, we're probably about to run out of power. */ | |
469 | dev_crit(wm831x->dev, "SYSVDD under voltage\n"); | |
470 | ||
471 | return IRQ_HANDLED; | |
472 | } | |
473 | ||
474 | static irqreturn_t wm831x_pwr_src_irq(int irq, void *data) | |
475 | { | |
476 | struct wm831x_power *wm831x_power = data; | |
477 | struct wm831x *wm831x = wm831x_power->wm831x; | |
478 | ||
479 | dev_dbg(wm831x->dev, "Power source changed\n"); | |
480 | ||
c26964ea | 481 | /* Just notify for everything - little harm in overnotifying. */ |
3961f7c3 MB |
482 | power_supply_changed(&wm831x_power->battery); |
483 | power_supply_changed(&wm831x_power->usb); | |
484 | power_supply_changed(&wm831x_power->wall); | |
485 | ||
486 | return IRQ_HANDLED; | |
487 | } | |
488 | ||
489 | static __devinit int wm831x_power_probe(struct platform_device *pdev) | |
490 | { | |
491 | struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent); | |
ccf8fa2d | 492 | struct wm831x_pdata *wm831x_pdata = wm831x->dev->platform_data; |
3961f7c3 MB |
493 | struct wm831x_power *power; |
494 | struct power_supply *usb; | |
495 | struct power_supply *battery; | |
496 | struct power_supply *wall; | |
3961f7c3 MB |
497 | int ret, irq, i; |
498 | ||
499 | power = kzalloc(sizeof(struct wm831x_power), GFP_KERNEL); | |
500 | if (power == NULL) | |
501 | return -ENOMEM; | |
502 | ||
503 | power->wm831x = wm831x; | |
504 | platform_set_drvdata(pdev, power); | |
505 | ||
506 | usb = &power->usb; | |
507 | battery = &power->battery; | |
508 | wall = &power->wall; | |
3961f7c3 | 509 | |
ccf8fa2d MB |
510 | if (wm831x_pdata && wm831x_pdata->wm831x_num) { |
511 | snprintf(power->wall_name, sizeof(power->wall_name), | |
512 | "wm831x-wall.%d", wm831x_pdata->wm831x_num); | |
513 | snprintf(power->battery_name, sizeof(power->wall_name), | |
514 | "wm831x-battery.%d", wm831x_pdata->wm831x_num); | |
515 | snprintf(power->usb_name, sizeof(power->wall_name), | |
516 | "wm831x-usb.%d", wm831x_pdata->wm831x_num); | |
517 | } else { | |
518 | snprintf(power->wall_name, sizeof(power->wall_name), | |
519 | "wm831x-wall"); | |
520 | snprintf(power->battery_name, sizeof(power->wall_name), | |
521 | "wm831x-battery"); | |
522 | snprintf(power->usb_name, sizeof(power->wall_name), | |
523 | "wm831x-usb"); | |
524 | } | |
525 | ||
3961f7c3 | 526 | /* We ignore configuration failures since we can still read back |
c26964ea | 527 | * the status without enabling the charger. |
3961f7c3 MB |
528 | */ |
529 | wm831x_config_battery(wm831x); | |
3961f7c3 | 530 | |
ccf8fa2d | 531 | wall->name = power->wall_name; |
3961f7c3 MB |
532 | wall->type = POWER_SUPPLY_TYPE_MAINS; |
533 | wall->properties = wm831x_wall_props; | |
534 | wall->num_properties = ARRAY_SIZE(wm831x_wall_props); | |
535 | wall->get_property = wm831x_wall_get_prop; | |
536 | ret = power_supply_register(&pdev->dev, wall); | |
537 | if (ret) | |
538 | goto err_kmalloc; | |
539 | ||
ccf8fa2d | 540 | battery->name = power->battery_name; |
3961f7c3 MB |
541 | battery->properties = wm831x_bat_props; |
542 | battery->num_properties = ARRAY_SIZE(wm831x_bat_props); | |
543 | battery->get_property = wm831x_bat_get_prop; | |
544 | battery->use_for_apm = 1; | |
545 | ret = power_supply_register(&pdev->dev, battery); | |
546 | if (ret) | |
547 | goto err_wall; | |
548 | ||
ccf8fa2d | 549 | usb->name = power->usb_name, |
3961f7c3 MB |
550 | usb->type = POWER_SUPPLY_TYPE_USB; |
551 | usb->properties = wm831x_usb_props; | |
552 | usb->num_properties = ARRAY_SIZE(wm831x_usb_props); | |
553 | usb->get_property = wm831x_usb_get_prop; | |
554 | ret = power_supply_register(&pdev->dev, usb); | |
555 | if (ret) | |
556 | goto err_battery; | |
557 | ||
3961f7c3 | 558 | irq = platform_get_irq_byname(pdev, "SYSLO"); |
b5874f33 MB |
559 | ret = request_threaded_irq(irq, NULL, wm831x_syslo_irq, |
560 | IRQF_TRIGGER_RISING, "System power low", | |
561 | power); | |
3961f7c3 MB |
562 | if (ret != 0) { |
563 | dev_err(&pdev->dev, "Failed to request SYSLO IRQ %d: %d\n", | |
564 | irq, ret); | |
c26964ea | 565 | goto err_usb; |
3961f7c3 MB |
566 | } |
567 | ||
568 | irq = platform_get_irq_byname(pdev, "PWR SRC"); | |
b5874f33 MB |
569 | ret = request_threaded_irq(irq, NULL, wm831x_pwr_src_irq, |
570 | IRQF_TRIGGER_RISING, "Power source", | |
571 | power); | |
3961f7c3 MB |
572 | if (ret != 0) { |
573 | dev_err(&pdev->dev, "Failed to request PWR SRC IRQ %d: %d\n", | |
574 | irq, ret); | |
575 | goto err_syslo; | |
576 | } | |
577 | ||
578 | for (i = 0; i < ARRAY_SIZE(wm831x_bat_irqs); i++) { | |
579 | irq = platform_get_irq_byname(pdev, wm831x_bat_irqs[i]); | |
b5874f33 MB |
580 | ret = request_threaded_irq(irq, NULL, wm831x_bat_irq, |
581 | IRQF_TRIGGER_RISING, | |
582 | wm831x_bat_irqs[i], | |
583 | power); | |
3961f7c3 MB |
584 | if (ret != 0) { |
585 | dev_err(&pdev->dev, | |
586 | "Failed to request %s IRQ %d: %d\n", | |
587 | wm831x_bat_irqs[i], irq, ret); | |
588 | goto err_bat_irq; | |
589 | } | |
590 | } | |
591 | ||
592 | return ret; | |
593 | ||
594 | err_bat_irq: | |
595 | for (; i >= 0; i--) { | |
596 | irq = platform_get_irq_byname(pdev, wm831x_bat_irqs[i]); | |
b5874f33 | 597 | free_irq(irq, power); |
3961f7c3 MB |
598 | } |
599 | irq = platform_get_irq_byname(pdev, "PWR SRC"); | |
b5874f33 | 600 | free_irq(irq, power); |
3961f7c3 MB |
601 | err_syslo: |
602 | irq = platform_get_irq_byname(pdev, "SYSLO"); | |
b5874f33 | 603 | free_irq(irq, power); |
3961f7c3 MB |
604 | err_usb: |
605 | power_supply_unregister(usb); | |
606 | err_battery: | |
607 | power_supply_unregister(battery); | |
608 | err_wall: | |
609 | power_supply_unregister(wall); | |
610 | err_kmalloc: | |
611 | kfree(power); | |
612 | return ret; | |
613 | } | |
614 | ||
615 | static __devexit int wm831x_power_remove(struct platform_device *pdev) | |
616 | { | |
617 | struct wm831x_power *wm831x_power = platform_get_drvdata(pdev); | |
3961f7c3 MB |
618 | int irq, i; |
619 | ||
620 | for (i = 0; i < ARRAY_SIZE(wm831x_bat_irqs); i++) { | |
621 | irq = platform_get_irq_byname(pdev, wm831x_bat_irqs[i]); | |
b5874f33 | 622 | free_irq(irq, wm831x_power); |
3961f7c3 MB |
623 | } |
624 | ||
625 | irq = platform_get_irq_byname(pdev, "PWR SRC"); | |
b5874f33 | 626 | free_irq(irq, wm831x_power); |
3961f7c3 MB |
627 | |
628 | irq = platform_get_irq_byname(pdev, "SYSLO"); | |
b5874f33 | 629 | free_irq(irq, wm831x_power); |
3961f7c3 | 630 | |
3961f7c3 MB |
631 | power_supply_unregister(&wm831x_power->battery); |
632 | power_supply_unregister(&wm831x_power->wall); | |
633 | power_supply_unregister(&wm831x_power->usb); | |
9c99f089 | 634 | kfree(wm831x_power); |
3961f7c3 MB |
635 | return 0; |
636 | } | |
637 | ||
638 | static struct platform_driver wm831x_power_driver = { | |
639 | .probe = wm831x_power_probe, | |
640 | .remove = __devexit_p(wm831x_power_remove), | |
641 | .driver = { | |
642 | .name = "wm831x-power", | |
643 | }, | |
644 | }; | |
645 | ||
646 | static int __init wm831x_power_init(void) | |
647 | { | |
648 | return platform_driver_register(&wm831x_power_driver); | |
649 | } | |
650 | module_init(wm831x_power_init); | |
651 | ||
652 | static void __exit wm831x_power_exit(void) | |
653 | { | |
654 | platform_driver_unregister(&wm831x_power_driver); | |
655 | } | |
656 | module_exit(wm831x_power_exit); | |
657 | ||
658 | MODULE_DESCRIPTION("Power supply driver for WM831x PMICs"); | |
659 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | |
660 | MODULE_LICENSE("GPL"); | |
661 | MODULE_ALIAS("platform:wm831x-power"); |