Merge branch 'fixes-hwmod-regression' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-2.6.git] / drivers / mfd / ab8500-core.c
1 /*
2  * Copyright (C) ST-Ericsson SA 2010
3  *
4  * License Terms: GNU General Public License v2
5  * Author: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
6  * Author: Rabin Vincent <rabin.vincent@stericsson.com>
7  * Author: Mattias Wallin <mattias.wallin@stericsson.com>
8  */
9
10 #include <linux/kernel.h>
11 #include <linux/slab.h>
12 #include <linux/init.h>
13 #include <linux/irq.h>
14 #include <linux/delay.h>
15 #include <linux/interrupt.h>
16 #include <linux/module.h>
17 #include <linux/platform_device.h>
18 #include <linux/mfd/core.h>
19 #include <linux/mfd/abx500.h>
20 #include <linux/mfd/ab8500.h>
21 #include <linux/regulator/ab8500.h>
22
23 /*
24  * Interrupt register offsets
25  * Bank : 0x0E
26  */
27 #define AB8500_IT_SOURCE1_REG           0x00
28 #define AB8500_IT_SOURCE2_REG           0x01
29 #define AB8500_IT_SOURCE3_REG           0x02
30 #define AB8500_IT_SOURCE4_REG           0x03
31 #define AB8500_IT_SOURCE5_REG           0x04
32 #define AB8500_IT_SOURCE6_REG           0x05
33 #define AB8500_IT_SOURCE7_REG           0x06
34 #define AB8500_IT_SOURCE8_REG           0x07
35 #define AB8500_IT_SOURCE19_REG          0x12
36 #define AB8500_IT_SOURCE20_REG          0x13
37 #define AB8500_IT_SOURCE21_REG          0x14
38 #define AB8500_IT_SOURCE22_REG          0x15
39 #define AB8500_IT_SOURCE23_REG          0x16
40 #define AB8500_IT_SOURCE24_REG          0x17
41
42 /*
43  * latch registers
44  */
45 #define AB8500_IT_LATCH1_REG            0x20
46 #define AB8500_IT_LATCH2_REG            0x21
47 #define AB8500_IT_LATCH3_REG            0x22
48 #define AB8500_IT_LATCH4_REG            0x23
49 #define AB8500_IT_LATCH5_REG            0x24
50 #define AB8500_IT_LATCH6_REG            0x25
51 #define AB8500_IT_LATCH7_REG            0x26
52 #define AB8500_IT_LATCH8_REG            0x27
53 #define AB8500_IT_LATCH9_REG            0x28
54 #define AB8500_IT_LATCH10_REG           0x29
55 #define AB8500_IT_LATCH12_REG           0x2B
56 #define AB8500_IT_LATCH19_REG           0x32
57 #define AB8500_IT_LATCH20_REG           0x33
58 #define AB8500_IT_LATCH21_REG           0x34
59 #define AB8500_IT_LATCH22_REG           0x35
60 #define AB8500_IT_LATCH23_REG           0x36
61 #define AB8500_IT_LATCH24_REG           0x37
62
63 /*
64  * mask registers
65  */
66
67 #define AB8500_IT_MASK1_REG             0x40
68 #define AB8500_IT_MASK2_REG             0x41
69 #define AB8500_IT_MASK3_REG             0x42
70 #define AB8500_IT_MASK4_REG             0x43
71 #define AB8500_IT_MASK5_REG             0x44
72 #define AB8500_IT_MASK6_REG             0x45
73 #define AB8500_IT_MASK7_REG             0x46
74 #define AB8500_IT_MASK8_REG             0x47
75 #define AB8500_IT_MASK9_REG             0x48
76 #define AB8500_IT_MASK10_REG            0x49
77 #define AB8500_IT_MASK11_REG            0x4A
78 #define AB8500_IT_MASK12_REG            0x4B
79 #define AB8500_IT_MASK13_REG            0x4C
80 #define AB8500_IT_MASK14_REG            0x4D
81 #define AB8500_IT_MASK15_REG            0x4E
82 #define AB8500_IT_MASK16_REG            0x4F
83 #define AB8500_IT_MASK17_REG            0x50
84 #define AB8500_IT_MASK18_REG            0x51
85 #define AB8500_IT_MASK19_REG            0x52
86 #define AB8500_IT_MASK20_REG            0x53
87 #define AB8500_IT_MASK21_REG            0x54
88 #define AB8500_IT_MASK22_REG            0x55
89 #define AB8500_IT_MASK23_REG            0x56
90 #define AB8500_IT_MASK24_REG            0x57
91
92 #define AB8500_REV_REG                  0x80
93 #define AB8500_SWITCH_OFF_STATUS        0x00
94
95 #define AB8500_TURN_ON_STATUS           0x00
96
97 /*
98  * Map interrupt numbers to the LATCH and MASK register offsets, Interrupt
99  * numbers are indexed into this array with (num / 8).
100  *
101  * This is one off from the register names, i.e. AB8500_IT_MASK1_REG is at
102  * offset 0.
103  */
104 static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = {
105         0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21,
106 };
107
108 static int ab8500_get_chip_id(struct device *dev)
109 {
110         struct ab8500 *ab8500;
111
112         if (!dev)
113                 return -EINVAL;
114         ab8500 = dev_get_drvdata(dev->parent);
115         return ab8500 ? (int)ab8500->chip_id : -EINVAL;
116 }
117
118 static int set_register_interruptible(struct ab8500 *ab8500, u8 bank,
119         u8 reg, u8 data)
120 {
121         int ret;
122         /*
123          * Put the u8 bank and u8 register together into a an u16.
124          * The bank on higher 8 bits and register in lower 8 bits.
125          * */
126         u16 addr = ((u16)bank) << 8 | reg;
127
128         dev_vdbg(ab8500->dev, "wr: addr %#x <= %#x\n", addr, data);
129
130         ret = mutex_lock_interruptible(&ab8500->lock);
131         if (ret)
132                 return ret;
133
134         ret = ab8500->write(ab8500, addr, data);
135         if (ret < 0)
136                 dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
137                         addr, ret);
138         mutex_unlock(&ab8500->lock);
139
140         return ret;
141 }
142
143 static int ab8500_set_register(struct device *dev, u8 bank,
144         u8 reg, u8 value)
145 {
146         struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
147
148         return set_register_interruptible(ab8500, bank, reg, value);
149 }
150
151 static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
152         u8 reg, u8 *value)
153 {
154         int ret;
155         /* put the u8 bank and u8 reg together into a an u16.
156          * bank on higher 8 bits and reg in lower */
157         u16 addr = ((u16)bank) << 8 | reg;
158
159         ret = mutex_lock_interruptible(&ab8500->lock);
160         if (ret)
161                 return ret;
162
163         ret = ab8500->read(ab8500, addr);
164         if (ret < 0)
165                 dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
166                         addr, ret);
167         else
168                 *value = ret;
169
170         mutex_unlock(&ab8500->lock);
171         dev_vdbg(ab8500->dev, "rd: addr %#x => data %#x\n", addr, ret);
172
173         return ret;
174 }
175
176 static int ab8500_get_register(struct device *dev, u8 bank,
177         u8 reg, u8 *value)
178 {
179         struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
180
181         return get_register_interruptible(ab8500, bank, reg, value);
182 }
183
184 static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank,
185         u8 reg, u8 bitmask, u8 bitvalues)
186 {
187         int ret;
188         u8 data;
189         /* put the u8 bank and u8 reg together into a an u16.
190          * bank on higher 8 bits and reg in lower */
191         u16 addr = ((u16)bank) << 8 | reg;
192
193         ret = mutex_lock_interruptible(&ab8500->lock);
194         if (ret)
195                 return ret;
196
197         ret = ab8500->read(ab8500, addr);
198         if (ret < 0) {
199                 dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
200                         addr, ret);
201                 goto out;
202         }
203
204         data = (u8)ret;
205         data = (~bitmask & data) | (bitmask & bitvalues);
206
207         ret = ab8500->write(ab8500, addr, data);
208         if (ret < 0)
209                 dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
210                         addr, ret);
211
212         dev_vdbg(ab8500->dev, "mask: addr %#x => data %#x\n", addr, data);
213 out:
214         mutex_unlock(&ab8500->lock);
215         return ret;
216 }
217
218 static int ab8500_mask_and_set_register(struct device *dev,
219         u8 bank, u8 reg, u8 bitmask, u8 bitvalues)
220 {
221         struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
222
223         return mask_and_set_register_interruptible(ab8500, bank, reg,
224                 bitmask, bitvalues);
225
226 }
227
228 static struct abx500_ops ab8500_ops = {
229         .get_chip_id = ab8500_get_chip_id,
230         .get_register = ab8500_get_register,
231         .set_register = ab8500_set_register,
232         .get_register_page = NULL,
233         .set_register_page = NULL,
234         .mask_and_set_register = ab8500_mask_and_set_register,
235         .event_registers_startup_state_get = NULL,
236         .startup_irq_enabled = NULL,
237 };
238
239 static void ab8500_irq_lock(struct irq_data *data)
240 {
241         struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
242
243         mutex_lock(&ab8500->irq_lock);
244 }
245
246 static void ab8500_irq_sync_unlock(struct irq_data *data)
247 {
248         struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
249         int i;
250
251         for (i = 0; i < AB8500_NUM_IRQ_REGS; i++) {
252                 u8 old = ab8500->oldmask[i];
253                 u8 new = ab8500->mask[i];
254                 int reg;
255
256                 if (new == old)
257                         continue;
258
259                 /* Interrupt register 12 doesn't exist prior to version 2.0 */
260                 if (ab8500_irq_regoffset[i] == 11 &&
261                         ab8500->chip_id < AB8500_CUT2P0)
262                         continue;
263
264                 ab8500->oldmask[i] = new;
265
266                 reg = AB8500_IT_MASK1_REG + ab8500_irq_regoffset[i];
267                 set_register_interruptible(ab8500, AB8500_INTERRUPT, reg, new);
268         }
269
270         mutex_unlock(&ab8500->irq_lock);
271 }
272
273 static void ab8500_irq_mask(struct irq_data *data)
274 {
275         struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
276         int offset = data->irq - ab8500->irq_base;
277         int index = offset / 8;
278         int mask = 1 << (offset % 8);
279
280         ab8500->mask[index] |= mask;
281 }
282
283 static void ab8500_irq_unmask(struct irq_data *data)
284 {
285         struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
286         int offset = data->irq - ab8500->irq_base;
287         int index = offset / 8;
288         int mask = 1 << (offset % 8);
289
290         ab8500->mask[index] &= ~mask;
291 }
292
293 static struct irq_chip ab8500_irq_chip = {
294         .name                   = "ab8500",
295         .irq_bus_lock           = ab8500_irq_lock,
296         .irq_bus_sync_unlock    = ab8500_irq_sync_unlock,
297         .irq_mask               = ab8500_irq_mask,
298         .irq_disable            = ab8500_irq_mask,
299         .irq_unmask             = ab8500_irq_unmask,
300 };
301
302 static irqreturn_t ab8500_irq(int irq, void *dev)
303 {
304         struct ab8500 *ab8500 = dev;
305         int i;
306
307         dev_vdbg(ab8500->dev, "interrupt\n");
308
309         for (i = 0; i < AB8500_NUM_IRQ_REGS; i++) {
310                 int regoffset = ab8500_irq_regoffset[i];
311                 int status;
312                 u8 value;
313
314                 /* Interrupt register 12 doesn't exist prior to version 2.0 */
315                 if (regoffset == 11 && ab8500->chip_id < AB8500_CUT2P0)
316                         continue;
317
318                 status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
319                         AB8500_IT_LATCH1_REG + regoffset, &value);
320                 if (status < 0 || value == 0)
321                         continue;
322
323                 do {
324                         int bit = __ffs(value);
325                         int line = i * 8 + bit;
326
327                         handle_nested_irq(ab8500->irq_base + line);
328                         value &= ~(1 << bit);
329                 } while (value);
330         }
331
332         return IRQ_HANDLED;
333 }
334
335 static int ab8500_irq_init(struct ab8500 *ab8500)
336 {
337         int base = ab8500->irq_base;
338         int irq;
339
340         for (irq = base; irq < base + AB8500_NR_IRQS; irq++) {
341                 irq_set_chip_data(irq, ab8500);
342                 irq_set_chip_and_handler(irq, &ab8500_irq_chip,
343                                          handle_simple_irq);
344                 irq_set_nested_thread(irq, 1);
345 #ifdef CONFIG_ARM
346                 set_irq_flags(irq, IRQF_VALID);
347 #else
348                 irq_set_noprobe(irq);
349 #endif
350         }
351
352         return 0;
353 }
354
355 static void ab8500_irq_remove(struct ab8500 *ab8500)
356 {
357         int base = ab8500->irq_base;
358         int irq;
359
360         for (irq = base; irq < base + AB8500_NR_IRQS; irq++) {
361 #ifdef CONFIG_ARM
362                 set_irq_flags(irq, 0);
363 #endif
364                 irq_set_chip_and_handler(irq, NULL, NULL);
365                 irq_set_chip_data(irq, NULL);
366         }
367 }
368
369 static struct resource __devinitdata ab8500_gpio_resources[] = {
370         {
371                 .name   = "GPIO_INT6",
372                 .start  = AB8500_INT_GPIO6R,
373                 .end    = AB8500_INT_GPIO41F,
374                 .flags  = IORESOURCE_IRQ,
375         }
376 };
377
378 static struct resource __devinitdata ab8500_gpadc_resources[] = {
379         {
380                 .name   = "HW_CONV_END",
381                 .start  = AB8500_INT_GP_HW_ADC_CONV_END,
382                 .end    = AB8500_INT_GP_HW_ADC_CONV_END,
383                 .flags  = IORESOURCE_IRQ,
384         },
385         {
386                 .name   = "SW_CONV_END",
387                 .start  = AB8500_INT_GP_SW_ADC_CONV_END,
388                 .end    = AB8500_INT_GP_SW_ADC_CONV_END,
389                 .flags  = IORESOURCE_IRQ,
390         },
391 };
392
393 static struct resource __devinitdata ab8500_rtc_resources[] = {
394         {
395                 .name   = "60S",
396                 .start  = AB8500_INT_RTC_60S,
397                 .end    = AB8500_INT_RTC_60S,
398                 .flags  = IORESOURCE_IRQ,
399         },
400         {
401                 .name   = "ALARM",
402                 .start  = AB8500_INT_RTC_ALARM,
403                 .end    = AB8500_INT_RTC_ALARM,
404                 .flags  = IORESOURCE_IRQ,
405         },
406 };
407
408 static struct resource __devinitdata ab8500_poweronkey_db_resources[] = {
409         {
410                 .name   = "ONKEY_DBF",
411                 .start  = AB8500_INT_PON_KEY1DB_F,
412                 .end    = AB8500_INT_PON_KEY1DB_F,
413                 .flags  = IORESOURCE_IRQ,
414         },
415         {
416                 .name   = "ONKEY_DBR",
417                 .start  = AB8500_INT_PON_KEY1DB_R,
418                 .end    = AB8500_INT_PON_KEY1DB_R,
419                 .flags  = IORESOURCE_IRQ,
420         },
421 };
422
423 static struct resource __devinitdata ab8500_av_acc_detect_resources[] = {
424         {
425                .name = "ACC_DETECT_1DB_F",
426                .start = AB8500_INT_ACC_DETECT_1DB_F,
427                .end = AB8500_INT_ACC_DETECT_1DB_F,
428                .flags = IORESOURCE_IRQ,
429         },
430         {
431                .name = "ACC_DETECT_1DB_R",
432                .start = AB8500_INT_ACC_DETECT_1DB_R,
433                .end = AB8500_INT_ACC_DETECT_1DB_R,
434                .flags = IORESOURCE_IRQ,
435         },
436         {
437                .name = "ACC_DETECT_21DB_F",
438                .start = AB8500_INT_ACC_DETECT_21DB_F,
439                .end = AB8500_INT_ACC_DETECT_21DB_F,
440                .flags = IORESOURCE_IRQ,
441         },
442         {
443                .name = "ACC_DETECT_21DB_R",
444                .start = AB8500_INT_ACC_DETECT_21DB_R,
445                .end = AB8500_INT_ACC_DETECT_21DB_R,
446                .flags = IORESOURCE_IRQ,
447         },
448         {
449                .name = "ACC_DETECT_22DB_F",
450                .start = AB8500_INT_ACC_DETECT_22DB_F,
451                .end = AB8500_INT_ACC_DETECT_22DB_F,
452                .flags = IORESOURCE_IRQ,
453         },
454         {
455                .name = "ACC_DETECT_22DB_R",
456                .start = AB8500_INT_ACC_DETECT_22DB_R,
457                .end = AB8500_INT_ACC_DETECT_22DB_R,
458                .flags = IORESOURCE_IRQ,
459         },
460 };
461
462 static struct resource __devinitdata ab8500_charger_resources[] = {
463         {
464                 .name = "MAIN_CH_UNPLUG_DET",
465                 .start = AB8500_INT_MAIN_CH_UNPLUG_DET,
466                 .end = AB8500_INT_MAIN_CH_UNPLUG_DET,
467                 .flags = IORESOURCE_IRQ,
468         },
469         {
470                 .name = "MAIN_CHARGE_PLUG_DET",
471                 .start = AB8500_INT_MAIN_CH_PLUG_DET,
472                 .end = AB8500_INT_MAIN_CH_PLUG_DET,
473                 .flags = IORESOURCE_IRQ,
474         },
475         {
476                 .name = "VBUS_DET_R",
477                 .start = AB8500_INT_VBUS_DET_R,
478                 .end = AB8500_INT_VBUS_DET_R,
479                 .flags = IORESOURCE_IRQ,
480         },
481         {
482                 .name = "VBUS_DET_F",
483                 .start = AB8500_INT_VBUS_DET_F,
484                 .end = AB8500_INT_VBUS_DET_F,
485                 .flags = IORESOURCE_IRQ,
486         },
487         {
488                 .name = "USB_LINK_STATUS",
489                 .start = AB8500_INT_USB_LINK_STATUS,
490                 .end = AB8500_INT_USB_LINK_STATUS,
491                 .flags = IORESOURCE_IRQ,
492         },
493         {
494                 .name = "USB_CHARGE_DET_DONE",
495                 .start = AB8500_INT_USB_CHG_DET_DONE,
496                 .end = AB8500_INT_USB_CHG_DET_DONE,
497                 .flags = IORESOURCE_IRQ,
498         },
499         {
500                 .name = "VBUS_OVV",
501                 .start = AB8500_INT_VBUS_OVV,
502                 .end = AB8500_INT_VBUS_OVV,
503                 .flags = IORESOURCE_IRQ,
504         },
505         {
506                 .name = "USB_CH_TH_PROT_R",
507                 .start = AB8500_INT_USB_CH_TH_PROT_R,
508                 .end = AB8500_INT_USB_CH_TH_PROT_R,
509                 .flags = IORESOURCE_IRQ,
510         },
511         {
512                 .name = "USB_CH_TH_PROT_F",
513                 .start = AB8500_INT_USB_CH_TH_PROT_F,
514                 .end = AB8500_INT_USB_CH_TH_PROT_F,
515                 .flags = IORESOURCE_IRQ,
516         },
517         {
518                 .name = "MAIN_EXT_CH_NOT_OK",
519                 .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
520                 .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
521                 .flags = IORESOURCE_IRQ,
522         },
523         {
524                 .name = "MAIN_CH_TH_PROT_R",
525                 .start = AB8500_INT_MAIN_CH_TH_PROT_R,
526                 .end = AB8500_INT_MAIN_CH_TH_PROT_R,
527                 .flags = IORESOURCE_IRQ,
528         },
529         {
530                 .name = "MAIN_CH_TH_PROT_F",
531                 .start = AB8500_INT_MAIN_CH_TH_PROT_F,
532                 .end = AB8500_INT_MAIN_CH_TH_PROT_F,
533                 .flags = IORESOURCE_IRQ,
534         },
535         {
536                 .name = "USB_CHARGER_NOT_OKR",
537                 .start = AB8500_INT_USB_CHARGER_NOT_OK,
538                 .end = AB8500_INT_USB_CHARGER_NOT_OK,
539                 .flags = IORESOURCE_IRQ,
540         },
541         {
542                 .name = "USB_CHARGER_NOT_OKF",
543                 .start = AB8500_INT_USB_CHARGER_NOT_OKF,
544                 .end = AB8500_INT_USB_CHARGER_NOT_OKF,
545                 .flags = IORESOURCE_IRQ,
546         },
547         {
548                 .name = "CH_WD_EXP",
549                 .start = AB8500_INT_CH_WD_EXP,
550                 .end = AB8500_INT_CH_WD_EXP,
551                 .flags = IORESOURCE_IRQ,
552         },
553 };
554
555 static struct resource __devinitdata ab8500_btemp_resources[] = {
556         {
557                 .name = "BAT_CTRL_INDB",
558                 .start = AB8500_INT_BAT_CTRL_INDB,
559                 .end = AB8500_INT_BAT_CTRL_INDB,
560                 .flags = IORESOURCE_IRQ,
561         },
562         {
563                 .name = "BTEMP_LOW",
564                 .start = AB8500_INT_BTEMP_LOW,
565                 .end = AB8500_INT_BTEMP_LOW,
566                 .flags = IORESOURCE_IRQ,
567         },
568         {
569                 .name = "BTEMP_HIGH",
570                 .start = AB8500_INT_BTEMP_HIGH,
571                 .end = AB8500_INT_BTEMP_HIGH,
572                 .flags = IORESOURCE_IRQ,
573         },
574         {
575                 .name = "BTEMP_LOW_MEDIUM",
576                 .start = AB8500_INT_BTEMP_LOW_MEDIUM,
577                 .end = AB8500_INT_BTEMP_LOW_MEDIUM,
578                 .flags = IORESOURCE_IRQ,
579         },
580         {
581                 .name = "BTEMP_MEDIUM_HIGH",
582                 .start = AB8500_INT_BTEMP_MEDIUM_HIGH,
583                 .end = AB8500_INT_BTEMP_MEDIUM_HIGH,
584                 .flags = IORESOURCE_IRQ,
585         },
586 };
587
588 static struct resource __devinitdata ab8500_fg_resources[] = {
589         {
590                 .name = "NCONV_ACCU",
591                 .start = AB8500_INT_CCN_CONV_ACC,
592                 .end = AB8500_INT_CCN_CONV_ACC,
593                 .flags = IORESOURCE_IRQ,
594         },
595         {
596                 .name = "BATT_OVV",
597                 .start = AB8500_INT_BATT_OVV,
598                 .end = AB8500_INT_BATT_OVV,
599                 .flags = IORESOURCE_IRQ,
600         },
601         {
602                 .name = "LOW_BAT_F",
603                 .start = AB8500_INT_LOW_BAT_F,
604                 .end = AB8500_INT_LOW_BAT_F,
605                 .flags = IORESOURCE_IRQ,
606         },
607         {
608                 .name = "LOW_BAT_R",
609                 .start = AB8500_INT_LOW_BAT_R,
610                 .end = AB8500_INT_LOW_BAT_R,
611                 .flags = IORESOURCE_IRQ,
612         },
613         {
614                 .name = "CC_INT_CALIB",
615                 .start = AB8500_INT_CC_INT_CALIB,
616                 .end = AB8500_INT_CC_INT_CALIB,
617                 .flags = IORESOURCE_IRQ,
618         },
619 };
620
621 static struct resource __devinitdata ab8500_chargalg_resources[] = {};
622
623 static struct resource __devinitdata ab8500_debug_resources[] = {
624         {
625                 .name   = "IRQ_FIRST",
626                 .start  = AB8500_INT_MAIN_EXT_CH_NOT_OK,
627                 .end    = AB8500_INT_MAIN_EXT_CH_NOT_OK,
628                 .flags  = IORESOURCE_IRQ,
629         },
630         {
631                 .name   = "IRQ_LAST",
632                 .start  = AB8500_INT_USB_CHARGER_NOT_OKF,
633                 .end    = AB8500_INT_USB_CHARGER_NOT_OKF,
634                 .flags  = IORESOURCE_IRQ,
635         },
636 };
637
638 static struct resource __devinitdata ab8500_usb_resources[] = {
639         {
640                 .name = "ID_WAKEUP_R",
641                 .start = AB8500_INT_ID_WAKEUP_R,
642                 .end = AB8500_INT_ID_WAKEUP_R,
643                 .flags = IORESOURCE_IRQ,
644         },
645         {
646                 .name = "ID_WAKEUP_F",
647                 .start = AB8500_INT_ID_WAKEUP_F,
648                 .end = AB8500_INT_ID_WAKEUP_F,
649                 .flags = IORESOURCE_IRQ,
650         },
651         {
652                 .name = "VBUS_DET_F",
653                 .start = AB8500_INT_VBUS_DET_F,
654                 .end = AB8500_INT_VBUS_DET_F,
655                 .flags = IORESOURCE_IRQ,
656         },
657         {
658                 .name = "VBUS_DET_R",
659                 .start = AB8500_INT_VBUS_DET_R,
660                 .end = AB8500_INT_VBUS_DET_R,
661                 .flags = IORESOURCE_IRQ,
662         },
663         {
664                 .name = "USB_LINK_STATUS",
665                 .start = AB8500_INT_USB_LINK_STATUS,
666                 .end = AB8500_INT_USB_LINK_STATUS,
667                 .flags = IORESOURCE_IRQ,
668         },
669         {
670                 .name = "USB_ADP_PROBE_PLUG",
671                 .start = AB8500_INT_ADP_PROBE_PLUG,
672                 .end = AB8500_INT_ADP_PROBE_PLUG,
673                 .flags = IORESOURCE_IRQ,
674         },
675         {
676                 .name = "USB_ADP_PROBE_UNPLUG",
677                 .start = AB8500_INT_ADP_PROBE_UNPLUG,
678                 .end = AB8500_INT_ADP_PROBE_UNPLUG,
679                 .flags = IORESOURCE_IRQ,
680         },
681 };
682
683 static struct resource __devinitdata ab8500_temp_resources[] = {
684         {
685                 .name  = "AB8500_TEMP_WARM",
686                 .start = AB8500_INT_TEMP_WARM,
687                 .end   = AB8500_INT_TEMP_WARM,
688                 .flags = IORESOURCE_IRQ,
689         },
690 };
691
692 static struct mfd_cell __devinitdata ab8500_devs[] = {
693 #ifdef CONFIG_DEBUG_FS
694         {
695                 .name = "ab8500-debug",
696                 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
697                 .resources = ab8500_debug_resources,
698         },
699 #endif
700         {
701                 .name = "ab8500-sysctrl",
702         },
703         {
704                 .name = "ab8500-regulator",
705         },
706         {
707                 .name = "ab8500-gpio",
708                 .num_resources = ARRAY_SIZE(ab8500_gpio_resources),
709                 .resources = ab8500_gpio_resources,
710         },
711         {
712                 .name = "ab8500-gpadc",
713                 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
714                 .resources = ab8500_gpadc_resources,
715         },
716         {
717                 .name = "ab8500-rtc",
718                 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
719                 .resources = ab8500_rtc_resources,
720         },
721         {
722                 .name = "ab8500-charger",
723                 .num_resources = ARRAY_SIZE(ab8500_charger_resources),
724                 .resources = ab8500_charger_resources,
725         },
726         {
727                 .name = "ab8500-btemp",
728                 .num_resources = ARRAY_SIZE(ab8500_btemp_resources),
729                 .resources = ab8500_btemp_resources,
730         },
731         {
732                 .name = "ab8500-fg",
733                 .num_resources = ARRAY_SIZE(ab8500_fg_resources),
734                 .resources = ab8500_fg_resources,
735         },
736         {
737                 .name = "ab8500-chargalg",
738                 .num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
739                 .resources = ab8500_chargalg_resources,
740         },
741         {
742                 .name = "ab8500-acc-det",
743                 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
744                 .resources = ab8500_av_acc_detect_resources,
745         },
746         {
747                 .name = "ab8500-codec",
748         },
749         {
750                 .name = "ab8500-usb",
751                 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
752                 .resources = ab8500_usb_resources,
753         },
754         {
755                 .name = "ab8500-poweron-key",
756                 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
757                 .resources = ab8500_poweronkey_db_resources,
758         },
759         {
760                 .name = "ab8500-pwm",
761                 .id = 1,
762         },
763         {
764                 .name = "ab8500-pwm",
765                 .id = 2,
766         },
767         {
768                 .name = "ab8500-pwm",
769                 .id = 3,
770         },
771         { .name = "ab8500-leds", },
772         {
773                 .name = "ab8500-denc",
774         },
775         {
776                 .name = "ab8500-temp",
777                 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
778                 .resources = ab8500_temp_resources,
779         },
780 };
781
782 static ssize_t show_chip_id(struct device *dev,
783                                 struct device_attribute *attr, char *buf)
784 {
785         struct ab8500 *ab8500;
786
787         ab8500 = dev_get_drvdata(dev);
788         return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
789 }
790
791 /*
792  * ab8500 has switched off due to (SWITCH_OFF_STATUS):
793  * 0x01 Swoff bit programming
794  * 0x02 Thermal protection activation
795  * 0x04 Vbat lower then BattOk falling threshold
796  * 0x08 Watchdog expired
797  * 0x10 Non presence of 32kHz clock
798  * 0x20 Battery level lower than power on reset threshold
799  * 0x40 Power on key 1 pressed longer than 10 seconds
800  * 0x80 DB8500 thermal shutdown
801  */
802 static ssize_t show_switch_off_status(struct device *dev,
803                                 struct device_attribute *attr, char *buf)
804 {
805         int ret;
806         u8 value;
807         struct ab8500 *ab8500;
808
809         ab8500 = dev_get_drvdata(dev);
810         ret = get_register_interruptible(ab8500, AB8500_RTC,
811                 AB8500_SWITCH_OFF_STATUS, &value);
812         if (ret < 0)
813                 return ret;
814         return sprintf(buf, "%#x\n", value);
815 }
816
817 /*
818  * ab8500 has turned on due to (TURN_ON_STATUS):
819  * 0x01 PORnVbat
820  * 0x02 PonKey1dbF
821  * 0x04 PonKey2dbF
822  * 0x08 RTCAlarm
823  * 0x10 MainChDet
824  * 0x20 VbusDet
825  * 0x40 UsbIDDetect
826  * 0x80 Reserved
827  */
828 static ssize_t show_turn_on_status(struct device *dev,
829                                 struct device_attribute *attr, char *buf)
830 {
831         int ret;
832         u8 value;
833         struct ab8500 *ab8500;
834
835         ab8500 = dev_get_drvdata(dev);
836         ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
837                 AB8500_TURN_ON_STATUS, &value);
838         if (ret < 0)
839                 return ret;
840         return sprintf(buf, "%#x\n", value);
841 }
842
843 static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);
844 static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);
845 static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL);
846
847 static struct attribute *ab8500_sysfs_entries[] = {
848         &dev_attr_chip_id.attr,
849         &dev_attr_switch_off_status.attr,
850         &dev_attr_turn_on_status.attr,
851         NULL,
852 };
853
854 static struct attribute_group ab8500_attr_group = {
855         .attrs  = ab8500_sysfs_entries,
856 };
857
858 int __devinit ab8500_init(struct ab8500 *ab8500)
859 {
860         struct ab8500_platform_data *plat = dev_get_platdata(ab8500->dev);
861         int ret;
862         int i;
863         u8 value;
864
865         if (plat)
866                 ab8500->irq_base = plat->irq_base;
867
868         mutex_init(&ab8500->lock);
869         mutex_init(&ab8500->irq_lock);
870
871         ret = get_register_interruptible(ab8500, AB8500_MISC,
872                 AB8500_REV_REG, &value);
873         if (ret < 0)
874                 return ret;
875
876         switch (value) {
877         case AB8500_CUT1P0:
878         case AB8500_CUT1P1:
879         case AB8500_CUT2P0:
880         case AB8500_CUT3P0:
881         case AB8500_CUT3P3:
882                 dev_info(ab8500->dev, "detected chip, revision: %#x\n", value);
883                 break;
884         default:
885                 dev_err(ab8500->dev, "unknown chip, revision: %#x\n", value);
886                 return -EINVAL;
887         }
888         ab8500->chip_id = value;
889
890         /*
891          * ab8500 has switched off due to (SWITCH_OFF_STATUS):
892          * 0x01 Swoff bit programming
893          * 0x02 Thermal protection activation
894          * 0x04 Vbat lower then BattOk falling threshold
895          * 0x08 Watchdog expired
896          * 0x10 Non presence of 32kHz clock
897          * 0x20 Battery level lower than power on reset threshold
898          * 0x40 Power on key 1 pressed longer than 10 seconds
899          * 0x80 DB8500 thermal shutdown
900          */
901
902         ret = get_register_interruptible(ab8500, AB8500_RTC,
903                 AB8500_SWITCH_OFF_STATUS, &value);
904         if (ret < 0)
905                 return ret;
906         dev_info(ab8500->dev, "switch off status: %#x", value);
907
908         if (plat && plat->init)
909                 plat->init(ab8500);
910
911         /* Clear and mask all interrupts */
912         for (i = 0; i < AB8500_NUM_IRQ_REGS; i++) {
913                 /* Interrupt register 12 doesn't exist prior to version 2.0 */
914                 if (ab8500_irq_regoffset[i] == 11 &&
915                         ab8500->chip_id < AB8500_CUT2P0)
916                         continue;
917
918                 get_register_interruptible(ab8500, AB8500_INTERRUPT,
919                         AB8500_IT_LATCH1_REG + ab8500_irq_regoffset[i],
920                         &value);
921                 set_register_interruptible(ab8500, AB8500_INTERRUPT,
922                         AB8500_IT_MASK1_REG + ab8500_irq_regoffset[i], 0xff);
923         }
924
925         ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
926         if (ret)
927                 return ret;
928
929         for (i = 0; i < AB8500_NUM_IRQ_REGS; i++)
930                 ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
931
932         if (ab8500->irq_base) {
933                 ret = ab8500_irq_init(ab8500);
934                 if (ret)
935                         return ret;
936
937                 ret = request_threaded_irq(ab8500->irq, NULL, ab8500_irq,
938                                            IRQF_ONESHOT | IRQF_NO_SUSPEND,
939                                            "ab8500", ab8500);
940                 if (ret)
941                         goto out_removeirq;
942         }
943
944         ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
945                               ARRAY_SIZE(ab8500_devs), NULL,
946                               ab8500->irq_base);
947         if (ret)
948                 goto out_freeirq;
949
950         ret = sysfs_create_group(&ab8500->dev->kobj, &ab8500_attr_group);
951         if (ret)
952                 dev_err(ab8500->dev, "error creating sysfs entries\n");
953
954         return ret;
955
956 out_freeirq:
957         if (ab8500->irq_base) {
958                 free_irq(ab8500->irq, ab8500);
959 out_removeirq:
960                 ab8500_irq_remove(ab8500);
961         }
962         return ret;
963 }
964
965 int __devexit ab8500_exit(struct ab8500 *ab8500)
966 {
967         sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group);
968         mfd_remove_devices(ab8500->dev);
969         if (ab8500->irq_base) {
970                 free_irq(ab8500->irq, ab8500);
971                 ab8500_irq_remove(ab8500);
972         }
973
974         return 0;
975 }
976
977 MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent");
978 MODULE_DESCRIPTION("AB8500 MFD core");
979 MODULE_LICENSE("GPL v2");