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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/irqdomain.h>
15#include <linux/delay.h>
16#include <linux/interrupt.h>
17#include <linux/moduleparam.h>
18#include <linux/platform_device.h>
19#include <linux/mfd/core.h>
20#include <linux/mfd/abx500.h>
21#include <linux/mfd/abx500/ab8500.h>
22#include <linux/mfd/abx500/ab8500-bm.h>
23#include <linux/mfd/dbx500-prcmu.h>
24#include <linux/regulator/ab8500.h>
25#include <linux/of.h>
26#include <linux/of_device.h>
27
28/*
29 * Interrupt register offsets
30 * Bank : 0x0E
31 */
32#define AB8500_IT_SOURCE1_REG 0x00
33#define AB8500_IT_SOURCE2_REG 0x01
34#define AB8500_IT_SOURCE3_REG 0x02
35#define AB8500_IT_SOURCE4_REG 0x03
36#define AB8500_IT_SOURCE5_REG 0x04
37#define AB8500_IT_SOURCE6_REG 0x05
38#define AB8500_IT_SOURCE7_REG 0x06
39#define AB8500_IT_SOURCE8_REG 0x07
40#define AB9540_IT_SOURCE13_REG 0x0C
41#define AB8500_IT_SOURCE19_REG 0x12
42#define AB8500_IT_SOURCE20_REG 0x13
43#define AB8500_IT_SOURCE21_REG 0x14
44#define AB8500_IT_SOURCE22_REG 0x15
45#define AB8500_IT_SOURCE23_REG 0x16
46#define AB8500_IT_SOURCE24_REG 0x17
47
48/*
49 * latch registers
50 */
51#define AB8500_IT_LATCH1_REG 0x20
52#define AB8500_IT_LATCH2_REG 0x21
53#define AB8500_IT_LATCH3_REG 0x22
54#define AB8500_IT_LATCH4_REG 0x23
55#define AB8500_IT_LATCH5_REG 0x24
56#define AB8500_IT_LATCH6_REG 0x25
57#define AB8500_IT_LATCH7_REG 0x26
58#define AB8500_IT_LATCH8_REG 0x27
59#define AB8500_IT_LATCH9_REG 0x28
60#define AB8500_IT_LATCH10_REG 0x29
61#define AB8500_IT_LATCH12_REG 0x2B
62#define AB9540_IT_LATCH13_REG 0x2C
63#define AB8500_IT_LATCH19_REG 0x32
64#define AB8500_IT_LATCH20_REG 0x33
65#define AB8500_IT_LATCH21_REG 0x34
66#define AB8500_IT_LATCH22_REG 0x35
67#define AB8500_IT_LATCH23_REG 0x36
68#define AB8500_IT_LATCH24_REG 0x37
69
70/*
71 * mask registers
72 */
73
74#define AB8500_IT_MASK1_REG 0x40
75#define AB8500_IT_MASK2_REG 0x41
76#define AB8500_IT_MASK3_REG 0x42
77#define AB8500_IT_MASK4_REG 0x43
78#define AB8500_IT_MASK5_REG 0x44
79#define AB8500_IT_MASK6_REG 0x45
80#define AB8500_IT_MASK7_REG 0x46
81#define AB8500_IT_MASK8_REG 0x47
82#define AB8500_IT_MASK9_REG 0x48
83#define AB8500_IT_MASK10_REG 0x49
84#define AB8500_IT_MASK11_REG 0x4A
85#define AB8500_IT_MASK12_REG 0x4B
86#define AB8500_IT_MASK13_REG 0x4C
87#define AB8500_IT_MASK14_REG 0x4D
88#define AB8500_IT_MASK15_REG 0x4E
89#define AB8500_IT_MASK16_REG 0x4F
90#define AB8500_IT_MASK17_REG 0x50
91#define AB8500_IT_MASK18_REG 0x51
92#define AB8500_IT_MASK19_REG 0x52
93#define AB8500_IT_MASK20_REG 0x53
94#define AB8500_IT_MASK21_REG 0x54
95#define AB8500_IT_MASK22_REG 0x55
96#define AB8500_IT_MASK23_REG 0x56
97#define AB8500_IT_MASK24_REG 0x57
98#define AB8500_IT_MASK25_REG 0x58
99
100/*
101 * latch hierarchy registers
102 */
103#define AB8500_IT_LATCHHIER1_REG 0x60
104#define AB8500_IT_LATCHHIER2_REG 0x61
105#define AB8500_IT_LATCHHIER3_REG 0x62
106#define AB8540_IT_LATCHHIER4_REG 0x63
107
108#define AB8500_IT_LATCHHIER_NUM 3
109#define AB8540_IT_LATCHHIER_NUM 4
110
111#define AB8500_REV_REG 0x80
112#define AB8500_IC_NAME_REG 0x82
113#define AB8500_SWITCH_OFF_STATUS 0x00
114
115#define AB8500_TURN_ON_STATUS 0x00
116#define AB8505_TURN_ON_STATUS_2 0x04
117
118#define AB8500_CH_USBCH_STAT1_REG 0x02
119#define VBUS_DET_DBNC100 0x02
120#define VBUS_DET_DBNC1 0x01
121
122static DEFINE_SPINLOCK(on_stat_lock);
123static u8 turn_on_stat_mask = 0xFF;
124static u8 turn_on_stat_set;
125static bool no_bm; /* No battery management */
126/*
127 * not really modular, but the easiest way to keep compat with existing
128 * bootargs behaviour is to continue using module_param here.
129 */
130module_param(no_bm, bool, S_IRUGO);
131
132#define AB9540_MODEM_CTRL2_REG 0x23
133#define AB9540_MODEM_CTRL2_SWDBBRSTN_BIT BIT(2)
134
135/*
136 * Map interrupt numbers to the LATCH and MASK register offsets, Interrupt
137 * numbers are indexed into this array with (num / 8). The interupts are
138 * defined in linux/mfd/ab8500.h
139 *
140 * This is one off from the register names, i.e. AB8500_IT_MASK1_REG is at
141 * offset 0.
142 */
143/* AB8500 support */
144static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = {
145 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21,
146};
147
148/* AB9540 / AB8505 support */
149static const int ab9540_irq_regoffset[AB9540_NUM_IRQ_REGS] = {
150 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22, 23
151};
152
153/* AB8540 support */
154static const int ab8540_irq_regoffset[AB8540_NUM_IRQ_REGS] = {
155 0, 1, 2, 3, 4, -1, -1, -1, -1, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22,
156 23, 25, 26, 27, 28, 29, 30, 31,
157};
158
159static const char ab8500_version_str[][7] = {
160 [AB8500_VERSION_AB8500] = "AB8500",
161 [AB8500_VERSION_AB8505] = "AB8505",
162 [AB8500_VERSION_AB9540] = "AB9540",
163 [AB8500_VERSION_AB8540] = "AB8540",
164};
165
166static int ab8500_prcmu_write(struct ab8500 *ab8500, u16 addr, u8 data)
167{
168 int ret;
169
170 ret = prcmu_abb_write((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
171 if (ret < 0)
172 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
173 return ret;
174}
175
176static int ab8500_prcmu_write_masked(struct ab8500 *ab8500, u16 addr, u8 mask,
177 u8 data)
178{
179 int ret;
180
181 ret = prcmu_abb_write_masked((u8)(addr >> 8), (u8)(addr & 0xFF), &data,
182 &mask, 1);
183 if (ret < 0)
184 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
185 return ret;
186}
187
188static int ab8500_prcmu_read(struct ab8500 *ab8500, u16 addr)
189{
190 int ret;
191 u8 data;
192
193 ret = prcmu_abb_read((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
194 if (ret < 0) {
195 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
196 return ret;
197 }
198 return (int)data;
199}
200
201static int ab8500_get_chip_id(struct device *dev)
202{
203 struct ab8500 *ab8500;
204
205 if (!dev)
206 return -EINVAL;
207 ab8500 = dev_get_drvdata(dev->parent);
208 return ab8500 ? (int)ab8500->chip_id : -EINVAL;
209}
210
211static int set_register_interruptible(struct ab8500 *ab8500, u8 bank,
212 u8 reg, u8 data)
213{
214 int ret;
215 /*
216 * Put the u8 bank and u8 register together into a an u16.
217 * The bank on higher 8 bits and register in lower 8 bits.
218 */
219 u16 addr = ((u16)bank) << 8 | reg;
220
221 dev_vdbg(ab8500->dev, "wr: addr %#x <= %#x\n", addr, data);
222
223 mutex_lock(&ab8500->lock);
224
225 ret = ab8500->write(ab8500, addr, data);
226 if (ret < 0)
227 dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
228 addr, ret);
229 mutex_unlock(&ab8500->lock);
230
231 return ret;
232}
233
234static int ab8500_set_register(struct device *dev, u8 bank,
235 u8 reg, u8 value)
236{
237 int ret;
238 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
239
240 atomic_inc(&ab8500->transfer_ongoing);
241 ret = set_register_interruptible(ab8500, bank, reg, value);
242 atomic_dec(&ab8500->transfer_ongoing);
243 return ret;
244}
245
246static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
247 u8 reg, u8 *value)
248{
249 int ret;
250 u16 addr = ((u16)bank) << 8 | reg;
251
252 mutex_lock(&ab8500->lock);
253
254 ret = ab8500->read(ab8500, addr);
255 if (ret < 0)
256 dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
257 addr, ret);
258 else
259 *value = ret;
260
261 mutex_unlock(&ab8500->lock);
262 dev_vdbg(ab8500->dev, "rd: addr %#x => data %#x\n", addr, ret);
263
264 return ret;
265}
266
267static int ab8500_get_register(struct device *dev, u8 bank,
268 u8 reg, u8 *value)
269{
270 int ret;
271 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
272
273 atomic_inc(&ab8500->transfer_ongoing);
274 ret = get_register_interruptible(ab8500, bank, reg, value);
275 atomic_dec(&ab8500->transfer_ongoing);
276 return ret;
277}
278
279static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank,
280 u8 reg, u8 bitmask, u8 bitvalues)
281{
282 int ret;
283 u16 addr = ((u16)bank) << 8 | reg;
284
285 mutex_lock(&ab8500->lock);
286
287 if (ab8500->write_masked == NULL) {
288 u8 data;
289
290 ret = ab8500->read(ab8500, addr);
291 if (ret < 0) {
292 dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
293 addr, ret);
294 goto out;
295 }
296
297 data = (u8)ret;
298 data = (~bitmask & data) | (bitmask & bitvalues);
299
300 ret = ab8500->write(ab8500, addr, data);
301 if (ret < 0)
302 dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
303 addr, ret);
304
305 dev_vdbg(ab8500->dev, "mask: addr %#x => data %#x\n", addr,
306 data);
307 goto out;
308 }
309 ret = ab8500->write_masked(ab8500, addr, bitmask, bitvalues);
310 if (ret < 0)
311 dev_err(ab8500->dev, "failed to modify reg %#x: %d\n", addr,
312 ret);
313out:
314 mutex_unlock(&ab8500->lock);
315 return ret;
316}
317
318static int ab8500_mask_and_set_register(struct device *dev,
319 u8 bank, u8 reg, u8 bitmask, u8 bitvalues)
320{
321 int ret;
322 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
323
324 atomic_inc(&ab8500->transfer_ongoing);
325 ret = mask_and_set_register_interruptible(ab8500, bank, reg,
326 bitmask, bitvalues);
327 atomic_dec(&ab8500->transfer_ongoing);
328 return ret;
329}
330
331static struct abx500_ops ab8500_ops = {
332 .get_chip_id = ab8500_get_chip_id,
333 .get_register = ab8500_get_register,
334 .set_register = ab8500_set_register,
335 .get_register_page = NULL,
336 .set_register_page = NULL,
337 .mask_and_set_register = ab8500_mask_and_set_register,
338 .event_registers_startup_state_get = NULL,
339 .startup_irq_enabled = NULL,
340 .dump_all_banks = ab8500_dump_all_banks,
341};
342
343static void ab8500_irq_lock(struct irq_data *data)
344{
345 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
346
347 mutex_lock(&ab8500->irq_lock);
348 atomic_inc(&ab8500->transfer_ongoing);
349}
350
351static void ab8500_irq_sync_unlock(struct irq_data *data)
352{
353 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
354 int i;
355
356 for (i = 0; i < ab8500->mask_size; i++) {
357 u8 old = ab8500->oldmask[i];
358 u8 new = ab8500->mask[i];
359 int reg;
360
361 if (new == old)
362 continue;
363
364 /*
365 * Interrupt register 12 doesn't exist prior to AB8500 version
366 * 2.0
367 */
368 if (ab8500->irq_reg_offset[i] == 11 &&
369 is_ab8500_1p1_or_earlier(ab8500))
370 continue;
371
372 if (ab8500->irq_reg_offset[i] < 0)
373 continue;
374
375 ab8500->oldmask[i] = new;
376
377 reg = AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i];
378 set_register_interruptible(ab8500, AB8500_INTERRUPT, reg, new);
379 }
380 atomic_dec(&ab8500->transfer_ongoing);
381 mutex_unlock(&ab8500->irq_lock);
382}
383
384static void ab8500_irq_mask(struct irq_data *data)
385{
386 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
387 int offset = data->hwirq;
388 int index = offset / 8;
389 int mask = 1 << (offset % 8);
390
391 ab8500->mask[index] |= mask;
392
393 /* The AB8500 GPIOs have two interrupts each (rising & falling). */
394 if (offset >= AB8500_INT_GPIO6R && offset <= AB8500_INT_GPIO41R)
395 ab8500->mask[index + 2] |= mask;
396 if (offset >= AB9540_INT_GPIO50R && offset <= AB9540_INT_GPIO54R)
397 ab8500->mask[index + 1] |= mask;
398 if (offset == AB8540_INT_GPIO43R || offset == AB8540_INT_GPIO44R)
399 /* Here the falling IRQ is one bit lower */
400 ab8500->mask[index] |= (mask << 1);
401}
402
403static void ab8500_irq_unmask(struct irq_data *data)
404{
405 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
406 unsigned int type = irqd_get_trigger_type(data);
407 int offset = data->hwirq;
408 int index = offset / 8;
409 int mask = 1 << (offset % 8);
410
411 if (type & IRQ_TYPE_EDGE_RISING)
412 ab8500->mask[index] &= ~mask;
413
414 /* The AB8500 GPIOs have two interrupts each (rising & falling). */
415 if (type & IRQ_TYPE_EDGE_FALLING) {
416 if (offset >= AB8500_INT_GPIO6R && offset <= AB8500_INT_GPIO41R)
417 ab8500->mask[index + 2] &= ~mask;
418 else if (offset >= AB9540_INT_GPIO50R &&
419 offset <= AB9540_INT_GPIO54R)
420 ab8500->mask[index + 1] &= ~mask;
421 else if (offset == AB8540_INT_GPIO43R ||
422 offset == AB8540_INT_GPIO44R)
423 /* Here the falling IRQ is one bit lower */
424 ab8500->mask[index] &= ~(mask << 1);
425 else
426 ab8500->mask[index] &= ~mask;
427 } else {
428 /* Satisfies the case where type is not set. */
429 ab8500->mask[index] &= ~mask;
430 }
431}
432
433static int ab8500_irq_set_type(struct irq_data *data, unsigned int type)
434{
435 return 0;
436}
437
438static struct irq_chip ab8500_irq_chip = {
439 .name = "ab8500",
440 .irq_bus_lock = ab8500_irq_lock,
441 .irq_bus_sync_unlock = ab8500_irq_sync_unlock,
442 .irq_mask = ab8500_irq_mask,
443 .irq_disable = ab8500_irq_mask,
444 .irq_unmask = ab8500_irq_unmask,
445 .irq_set_type = ab8500_irq_set_type,
446};
447
448static void update_latch_offset(u8 *offset, int i)
449{
450 /* Fix inconsistent ITFromLatch25 bit mapping... */
451 if (unlikely(*offset == 17))
452 *offset = 24;
453 /* Fix inconsistent ab8540 bit mapping... */
454 if (unlikely(*offset == 16))
455 *offset = 25;
456 if ((i == 3) && (*offset >= 24))
457 *offset += 2;
458}
459
460static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
461 int latch_offset, u8 latch_val)
462{
463 int int_bit, line, i;
464
465 for (i = 0; i < ab8500->mask_size; i++)
466 if (ab8500->irq_reg_offset[i] == latch_offset)
467 break;
468
469 if (i >= ab8500->mask_size) {
470 dev_err(ab8500->dev, "Register offset 0x%2x not declared\n",
471 latch_offset);
472 return -ENXIO;
473 }
474
475 /* ignore masked out interrupts */
476 latch_val &= ~ab8500->mask[i];
477
478 while (latch_val) {
479 int_bit = __ffs(latch_val);
480 line = (i << 3) + int_bit;
481 latch_val &= ~(1 << int_bit);
482
483 /*
484 * This handles the falling edge hwirqs from the GPIO
485 * lines. Route them back to the line registered for the
486 * rising IRQ, as this is merely a flag for the same IRQ
487 * in linux terms.
488 */
489 if (line >= AB8500_INT_GPIO6F && line <= AB8500_INT_GPIO41F)
490 line -= 16;
491 if (line >= AB9540_INT_GPIO50F && line <= AB9540_INT_GPIO54F)
492 line -= 8;
493 if (line == AB8540_INT_GPIO43F || line == AB8540_INT_GPIO44F)
494 line += 1;
495
496 handle_nested_irq(irq_create_mapping(ab8500->domain, line));
497 }
498
499 return 0;
500}
501
502static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500,
503 int hier_offset, u8 hier_val)
504{
505 int latch_bit, status;
506 u8 latch_offset, latch_val;
507
508 do {
509 latch_bit = __ffs(hier_val);
510 latch_offset = (hier_offset << 3) + latch_bit;
511
512 update_latch_offset(&latch_offset, hier_offset);
513
514 status = get_register_interruptible(ab8500,
515 AB8500_INTERRUPT,
516 AB8500_IT_LATCH1_REG + latch_offset,
517 &latch_val);
518 if (status < 0 || latch_val == 0)
519 goto discard;
520
521 status = ab8500_handle_hierarchical_line(ab8500,
522 latch_offset, latch_val);
523 if (status < 0)
524 return status;
525discard:
526 hier_val &= ~(1 << latch_bit);
527 } while (hier_val);
528
529 return 0;
530}
531
532static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev)
533{
534 struct ab8500 *ab8500 = dev;
535 u8 i;
536
537 dev_vdbg(ab8500->dev, "interrupt\n");
538
539 /* Hierarchical interrupt version */
540 for (i = 0; i < (ab8500->it_latchhier_num); i++) {
541 int status;
542 u8 hier_val;
543
544 status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
545 AB8500_IT_LATCHHIER1_REG + i, &hier_val);
546 if (status < 0 || hier_val == 0)
547 continue;
548
549 status = ab8500_handle_hierarchical_latch(ab8500, i, hier_val);
550 if (status < 0)
551 break;
552 }
553 return IRQ_HANDLED;
554}
555
556static int ab8500_irq_map(struct irq_domain *d, unsigned int virq,
557 irq_hw_number_t hwirq)
558{
559 struct ab8500 *ab8500 = d->host_data;
560
561 if (!ab8500)
562 return -EINVAL;
563
564 irq_set_chip_data(virq, ab8500);
565 irq_set_chip_and_handler(virq, &ab8500_irq_chip,
566 handle_simple_irq);
567 irq_set_nested_thread(virq, 1);
568 irq_set_noprobe(virq);
569
570 return 0;
571}
572
573static const struct irq_domain_ops ab8500_irq_ops = {
574 .map = ab8500_irq_map,
575 .xlate = irq_domain_xlate_twocell,
576};
577
578static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np)
579{
580 int num_irqs;
581
582 if (is_ab8540(ab8500))
583 num_irqs = AB8540_NR_IRQS;
584 else if (is_ab9540(ab8500))
585 num_irqs = AB9540_NR_IRQS;
586 else if (is_ab8505(ab8500))
587 num_irqs = AB8505_NR_IRQS;
588 else
589 num_irqs = AB8500_NR_IRQS;
590
591 /* If ->irq_base is zero this will give a linear mapping */
592 ab8500->domain = irq_domain_add_simple(ab8500->dev->of_node,
593 num_irqs, 0,
594 &ab8500_irq_ops, ab8500);
595
596 if (!ab8500->domain) {
597 dev_err(ab8500->dev, "Failed to create irqdomain\n");
598 return -ENODEV;
599 }
600
601 return 0;
602}
603
604int ab8500_suspend(struct ab8500 *ab8500)
605{
606 if (atomic_read(&ab8500->transfer_ongoing))
607 return -EINVAL;
608
609 return 0;
610}
611
612static const struct mfd_cell ab8500_bm_devs[] = {
613 {
614 .name = "ab8500-charger",
615 .of_compatible = "stericsson,ab8500-charger",
616 .platform_data = &ab8500_bm_data,
617 .pdata_size = sizeof(ab8500_bm_data),
618 },
619 {
620 .name = "ab8500-btemp",
621 .of_compatible = "stericsson,ab8500-btemp",
622 .platform_data = &ab8500_bm_data,
623 .pdata_size = sizeof(ab8500_bm_data),
624 },
625 {
626 .name = "ab8500-fg",
627 .of_compatible = "stericsson,ab8500-fg",
628 .platform_data = &ab8500_bm_data,
629 .pdata_size = sizeof(ab8500_bm_data),
630 },
631 {
632 .name = "ab8500-chargalg",
633 .of_compatible = "stericsson,ab8500-chargalg",
634 .platform_data = &ab8500_bm_data,
635 .pdata_size = sizeof(ab8500_bm_data),
636 },
637};
638
639static const struct mfd_cell ab8500_devs[] = {
640#ifdef CONFIG_DEBUG_FS
641 {
642 .name = "ab8500-debug",
643 .of_compatible = "stericsson,ab8500-debug",
644 },
645#endif
646 {
647 .name = "ab8500-sysctrl",
648 .of_compatible = "stericsson,ab8500-sysctrl",
649 },
650 {
651 .name = "ab8500-ext-regulator",
652 .of_compatible = "stericsson,ab8500-ext-regulator",
653 },
654 {
655 .name = "ab8500-regulator",
656 .of_compatible = "stericsson,ab8500-regulator",
657 },
658 {
659 .name = "ab8500-clk",
660 .of_compatible = "stericsson,ab8500-clk",
661 },
662 {
663 .name = "ab8500-gpadc",
664 .of_compatible = "stericsson,ab8500-gpadc",
665 },
666 {
667 .name = "ab8500-rtc",
668 .of_compatible = "stericsson,ab8500-rtc",
669 },
670 {
671 .name = "ab8500-acc-det",
672 .of_compatible = "stericsson,ab8500-acc-det",
673 },
674 {
675
676 .name = "ab8500-poweron-key",
677 .of_compatible = "stericsson,ab8500-poweron-key",
678 },
679 {
680 .name = "ab8500-pwm",
681 .of_compatible = "stericsson,ab8500-pwm",
682 .id = 1,
683 },
684 {
685 .name = "ab8500-pwm",
686 .of_compatible = "stericsson,ab8500-pwm",
687 .id = 2,
688 },
689 {
690 .name = "ab8500-pwm",
691 .of_compatible = "stericsson,ab8500-pwm",
692 .id = 3,
693 },
694 {
695 .name = "ab8500-denc",
696 .of_compatible = "stericsson,ab8500-denc",
697 },
698 {
699 .name = "pinctrl-ab8500",
700 .of_compatible = "stericsson,ab8500-gpio",
701 },
702 {
703 .name = "abx500-temp",
704 .of_compatible = "stericsson,abx500-temp",
705 },
706 {
707 .name = "ab8500-usb",
708 .of_compatible = "stericsson,ab8500-usb",
709 },
710 {
711 .name = "ab8500-codec",
712 .of_compatible = "stericsson,ab8500-codec",
713 },
714};
715
716static const struct mfd_cell ab9540_devs[] = {
717#ifdef CONFIG_DEBUG_FS
718 {
719 .name = "ab8500-debug",
720 },
721#endif
722 {
723 .name = "ab8500-sysctrl",
724 },
725 {
726 .name = "ab8500-ext-regulator",
727 },
728 {
729 .name = "ab8500-regulator",
730 },
731 {
732 .name = "abx500-clk",
733 .of_compatible = "stericsson,abx500-clk",
734 },
735 {
736 .name = "ab8500-gpadc",
737 .of_compatible = "stericsson,ab8500-gpadc",
738 },
739 {
740 .name = "ab8500-rtc",
741 },
742 {
743 .name = "ab8500-acc-det",
744 },
745 {
746 .name = "ab8500-poweron-key",
747 },
748 {
749 .name = "ab8500-pwm",
750 .id = 1,
751 },
752 {
753 .name = "abx500-temp",
754 },
755 {
756 .name = "pinctrl-ab9540",
757 .of_compatible = "stericsson,ab9540-gpio",
758 },
759 {
760 .name = "ab9540-usb",
761 },
762 {
763 .name = "ab9540-codec",
764 },
765 {
766 .name = "ab-iddet",
767 },
768};
769
770/* Device list for ab8505 */
771static const struct mfd_cell ab8505_devs[] = {
772#ifdef CONFIG_DEBUG_FS
773 {
774 .name = "ab8500-debug",
775 },
776#endif
777 {
778 .name = "ab8500-sysctrl",
779 },
780 {
781 .name = "ab8500-regulator",
782 },
783 {
784 .name = "abx500-clk",
785 .of_compatible = "stericsson,abx500-clk",
786 },
787 {
788 .name = "ab8500-gpadc",
789 .of_compatible = "stericsson,ab8500-gpadc",
790 },
791 {
792 .name = "ab8500-rtc",
793 },
794 {
795 .name = "ab8500-acc-det",
796 },
797 {
798 .name = "ab8500-poweron-key",
799 },
800 {
801 .name = "ab8500-pwm",
802 .id = 1,
803 },
804 {
805 .name = "pinctrl-ab8505",
806 },
807 {
808 .name = "ab8500-usb",
809 },
810 {
811 .name = "ab8500-codec",
812 },
813 {
814 .name = "ab-iddet",
815 },
816};
817
818static const struct mfd_cell ab8540_devs[] = {
819#ifdef CONFIG_DEBUG_FS
820 {
821 .name = "ab8500-debug",
822 },
823#endif
824 {
825 .name = "ab8500-sysctrl",
826 },
827 {
828 .name = "ab8500-ext-regulator",
829 },
830 {
831 .name = "ab8500-regulator",
832 },
833 {
834 .name = "abx500-clk",
835 .of_compatible = "stericsson,abx500-clk",
836 },
837 {
838 .name = "ab8500-gpadc",
839 .of_compatible = "stericsson,ab8500-gpadc",
840 },
841 {
842 .name = "ab8500-acc-det",
843 },
844 {
845 .name = "ab8500-poweron-key",
846 },
847 {
848 .name = "ab8500-pwm",
849 .id = 1,
850 },
851 {
852 .name = "abx500-temp",
853 },
854 {
855 .name = "pinctrl-ab8540",
856 },
857 {
858 .name = "ab8540-usb",
859 },
860 {
861 .name = "ab8540-codec",
862 },
863 {
864 .name = "ab-iddet",
865 },
866};
867
868static const struct mfd_cell ab8540_cut1_devs[] = {
869 {
870 .name = "ab8500-rtc",
871 .of_compatible = "stericsson,ab8500-rtc",
872 },
873};
874
875static const struct mfd_cell ab8540_cut2_devs[] = {
876 {
877 .name = "ab8540-rtc",
878 .of_compatible = "stericsson,ab8540-rtc",
879 },
880};
881
882static ssize_t show_chip_id(struct device *dev,
883 struct device_attribute *attr, char *buf)
884{
885 struct ab8500 *ab8500;
886
887 ab8500 = dev_get_drvdata(dev);
888
889 return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
890}
891
892/*
893 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
894 * 0x01 Swoff bit programming
895 * 0x02 Thermal protection activation
896 * 0x04 Vbat lower then BattOk falling threshold
897 * 0x08 Watchdog expired
898 * 0x10 Non presence of 32kHz clock
899 * 0x20 Battery level lower than power on reset threshold
900 * 0x40 Power on key 1 pressed longer than 10 seconds
901 * 0x80 DB8500 thermal shutdown
902 */
903static ssize_t show_switch_off_status(struct device *dev,
904 struct device_attribute *attr, char *buf)
905{
906 int ret;
907 u8 value;
908 struct ab8500 *ab8500;
909
910 ab8500 = dev_get_drvdata(dev);
911 ret = get_register_interruptible(ab8500, AB8500_RTC,
912 AB8500_SWITCH_OFF_STATUS, &value);
913 if (ret < 0)
914 return ret;
915 return sprintf(buf, "%#x\n", value);
916}
917
918/* use mask and set to override the register turn_on_stat value */
919void ab8500_override_turn_on_stat(u8 mask, u8 set)
920{
921 spin_lock(&on_stat_lock);
922 turn_on_stat_mask = mask;
923 turn_on_stat_set = set;
924 spin_unlock(&on_stat_lock);
925}
926
927/*
928 * ab8500 has turned on due to (TURN_ON_STATUS):
929 * 0x01 PORnVbat
930 * 0x02 PonKey1dbF
931 * 0x04 PonKey2dbF
932 * 0x08 RTCAlarm
933 * 0x10 MainChDet
934 * 0x20 VbusDet
935 * 0x40 UsbIDDetect
936 * 0x80 Reserved
937 */
938static ssize_t show_turn_on_status(struct device *dev,
939 struct device_attribute *attr, char *buf)
940{
941 int ret;
942 u8 value;
943 struct ab8500 *ab8500;
944
945 ab8500 = dev_get_drvdata(dev);
946 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
947 AB8500_TURN_ON_STATUS, &value);
948 if (ret < 0)
949 return ret;
950
951 /*
952 * In L9540, turn_on_status register is not updated correctly if
953 * the device is rebooted with AC/USB charger connected. Due to
954 * this, the device boots android instead of entering into charge
955 * only mode. Read the AC/USB status register to detect the charger
956 * presence and update the turn on status manually.
957 */
958 if (is_ab9540(ab8500)) {
959 spin_lock(&on_stat_lock);
960 value = (value & turn_on_stat_mask) | turn_on_stat_set;
961 spin_unlock(&on_stat_lock);
962 }
963
964 return sprintf(buf, "%#x\n", value);
965}
966
967static ssize_t show_turn_on_status_2(struct device *dev,
968 struct device_attribute *attr, char *buf)
969{
970 int ret;
971 u8 value;
972 struct ab8500 *ab8500;
973
974 ab8500 = dev_get_drvdata(dev);
975 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
976 AB8505_TURN_ON_STATUS_2, &value);
977 if (ret < 0)
978 return ret;
979 return sprintf(buf, "%#x\n", (value & 0x1));
980}
981
982static ssize_t show_ab9540_dbbrstn(struct device *dev,
983 struct device_attribute *attr, char *buf)
984{
985 struct ab8500 *ab8500;
986 int ret;
987 u8 value;
988
989 ab8500 = dev_get_drvdata(dev);
990
991 ret = get_register_interruptible(ab8500, AB8500_REGU_CTRL2,
992 AB9540_MODEM_CTRL2_REG, &value);
993 if (ret < 0)
994 return ret;
995
996 return sprintf(buf, "%d\n",
997 (value & AB9540_MODEM_CTRL2_SWDBBRSTN_BIT) ? 1 : 0);
998}
999
1000static ssize_t store_ab9540_dbbrstn(struct device *dev,
1001 struct device_attribute *attr, const char *buf, size_t count)
1002{
1003 struct ab8500 *ab8500;
1004 int ret = count;
1005 int err;
1006 u8 bitvalues;
1007
1008 ab8500 = dev_get_drvdata(dev);
1009
1010 if (count > 0) {
1011 switch (buf[0]) {
1012 case '0':
1013 bitvalues = 0;
1014 break;
1015 case '1':
1016 bitvalues = AB9540_MODEM_CTRL2_SWDBBRSTN_BIT;
1017 break;
1018 default:
1019 goto exit;
1020 }
1021
1022 err = mask_and_set_register_interruptible(ab8500,
1023 AB8500_REGU_CTRL2, AB9540_MODEM_CTRL2_REG,
1024 AB9540_MODEM_CTRL2_SWDBBRSTN_BIT, bitvalues);
1025 if (err)
1026 dev_info(ab8500->dev,
1027 "Failed to set DBBRSTN %c, err %#x\n",
1028 buf[0], err);
1029 }
1030
1031exit:
1032 return ret;
1033}
1034
1035static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);
1036static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);
1037static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL);
1038static DEVICE_ATTR(turn_on_status_2, S_IRUGO, show_turn_on_status_2, NULL);
1039static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,
1040 show_ab9540_dbbrstn, store_ab9540_dbbrstn);
1041
1042static struct attribute *ab8500_sysfs_entries[] = {
1043 &dev_attr_chip_id.attr,
1044 &dev_attr_switch_off_status.attr,
1045 &dev_attr_turn_on_status.attr,
1046 NULL,
1047};
1048
1049static struct attribute *ab8505_sysfs_entries[] = {
1050 &dev_attr_turn_on_status_2.attr,
1051 NULL,
1052};
1053
1054static struct attribute *ab9540_sysfs_entries[] = {
1055 &dev_attr_chip_id.attr,
1056 &dev_attr_switch_off_status.attr,
1057 &dev_attr_turn_on_status.attr,
1058 &dev_attr_dbbrstn.attr,
1059 NULL,
1060};
1061
1062static const struct attribute_group ab8500_attr_group = {
1063 .attrs = ab8500_sysfs_entries,
1064};
1065
1066static const struct attribute_group ab8505_attr_group = {
1067 .attrs = ab8505_sysfs_entries,
1068};
1069
1070static const struct attribute_group ab9540_attr_group = {
1071 .attrs = ab9540_sysfs_entries,
1072};
1073
1074static int ab8500_probe(struct platform_device *pdev)
1075{
1076 static const char * const switch_off_status[] = {
1077 "Swoff bit programming",
1078 "Thermal protection activation",
1079 "Vbat lower then BattOk falling threshold",
1080 "Watchdog expired",
1081 "Non presence of 32kHz clock",
1082 "Battery level lower than power on reset threshold",
1083 "Power on key 1 pressed longer than 10 seconds",
1084 "DB8500 thermal shutdown"};
1085 static const char * const turn_on_status[] = {
1086 "Battery rising (Vbat)",
1087 "Power On Key 1 dbF",
1088 "Power On Key 2 dbF",
1089 "RTC Alarm",
1090 "Main Charger Detect",
1091 "Vbus Detect (USB)",
1092 "USB ID Detect",
1093 "UART Factory Mode Detect"};
1094 const struct platform_device_id *platid = platform_get_device_id(pdev);
1095 enum ab8500_version version = AB8500_VERSION_UNDEFINED;
1096 struct device_node *np = pdev->dev.of_node;
1097 struct ab8500 *ab8500;
1098 struct resource *resource;
1099 int ret;
1100 int i;
1101 u8 value;
1102
1103 ab8500 = devm_kzalloc(&pdev->dev, sizeof(*ab8500), GFP_KERNEL);
1104 if (!ab8500)
1105 return -ENOMEM;
1106
1107 ab8500->dev = &pdev->dev;
1108
1109 resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1110 if (!resource) {
1111 dev_err(&pdev->dev, "no IRQ resource\n");
1112 return -ENODEV;
1113 }
1114
1115 ab8500->irq = resource->start;
1116
1117 ab8500->read = ab8500_prcmu_read;
1118 ab8500->write = ab8500_prcmu_write;
1119 ab8500->write_masked = ab8500_prcmu_write_masked;
1120
1121 mutex_init(&ab8500->lock);
1122 mutex_init(&ab8500->irq_lock);
1123 atomic_set(&ab8500->transfer_ongoing, 0);
1124
1125 platform_set_drvdata(pdev, ab8500);
1126
1127 if (platid)
1128 version = platid->driver_data;
1129
1130 if (version != AB8500_VERSION_UNDEFINED)
1131 ab8500->version = version;
1132 else {
1133 ret = get_register_interruptible(ab8500, AB8500_MISC,
1134 AB8500_IC_NAME_REG, &value);
1135 if (ret < 0) {
1136 dev_err(&pdev->dev, "could not probe HW\n");
1137 return ret;
1138 }
1139
1140 ab8500->version = value;
1141 }
1142
1143 ret = get_register_interruptible(ab8500, AB8500_MISC,
1144 AB8500_REV_REG, &value);
1145 if (ret < 0)
1146 return ret;
1147
1148 ab8500->chip_id = value;
1149
1150 dev_info(ab8500->dev, "detected chip, %s rev. %1x.%1x\n",
1151 ab8500_version_str[ab8500->version],
1152 ab8500->chip_id >> 4,
1153 ab8500->chip_id & 0x0F);
1154
1155 /* Configure AB8540 */
1156 if (is_ab8540(ab8500)) {
1157 ab8500->mask_size = AB8540_NUM_IRQ_REGS;
1158 ab8500->irq_reg_offset = ab8540_irq_regoffset;
1159 ab8500->it_latchhier_num = AB8540_IT_LATCHHIER_NUM;
1160 } /* Configure AB8500 or AB9540 IRQ */
1161 else if (is_ab9540(ab8500) || is_ab8505(ab8500)) {
1162 ab8500->mask_size = AB9540_NUM_IRQ_REGS;
1163 ab8500->irq_reg_offset = ab9540_irq_regoffset;
1164 ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
1165 } else {
1166 ab8500->mask_size = AB8500_NUM_IRQ_REGS;
1167 ab8500->irq_reg_offset = ab8500_irq_regoffset;
1168 ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
1169 }
1170 ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size,
1171 GFP_KERNEL);
1172 if (!ab8500->mask)
1173 return -ENOMEM;
1174 ab8500->oldmask = devm_kzalloc(&pdev->dev, ab8500->mask_size,
1175 GFP_KERNEL);
1176 if (!ab8500->oldmask)
1177 return -ENOMEM;
1178
1179 /*
1180 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1181 * 0x01 Swoff bit programming
1182 * 0x02 Thermal protection activation
1183 * 0x04 Vbat lower then BattOk falling threshold
1184 * 0x08 Watchdog expired
1185 * 0x10 Non presence of 32kHz clock
1186 * 0x20 Battery level lower than power on reset threshold
1187 * 0x40 Power on key 1 pressed longer than 10 seconds
1188 * 0x80 DB8500 thermal shutdown
1189 */
1190
1191 ret = get_register_interruptible(ab8500, AB8500_RTC,
1192 AB8500_SWITCH_OFF_STATUS, &value);
1193 if (ret < 0)
1194 return ret;
1195 dev_info(ab8500->dev, "switch off cause(s) (%#x): ", value);
1196
1197 if (value) {
1198 for (i = 0; i < ARRAY_SIZE(switch_off_status); i++) {
1199 if (value & 1)
1200 pr_cont(" \"%s\"", switch_off_status[i]);
1201 value = value >> 1;
1202
1203 }
1204 pr_cont("\n");
1205 } else {
1206 pr_cont(" None\n");
1207 }
1208 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1209 AB8500_TURN_ON_STATUS, &value);
1210 if (ret < 0)
1211 return ret;
1212 dev_info(ab8500->dev, "turn on reason(s) (%#x): ", value);
1213
1214 if (value) {
1215 for (i = 0; i < ARRAY_SIZE(turn_on_status); i++) {
1216 if (value & 1)
1217 pr_cont("\"%s\" ", turn_on_status[i]);
1218 value = value >> 1;
1219 }
1220 pr_cont("\n");
1221 } else {
1222 pr_cont("None\n");
1223 }
1224
1225 if (is_ab9540(ab8500)) {
1226 ret = get_register_interruptible(ab8500, AB8500_CHARGER,
1227 AB8500_CH_USBCH_STAT1_REG, &value);
1228 if (ret < 0)
1229 return ret;
1230 if ((value & VBUS_DET_DBNC1) && (value & VBUS_DET_DBNC100))
1231 ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON,
1232 AB8500_VBUS_DET);
1233 }
1234
1235 /* Clear and mask all interrupts */
1236 for (i = 0; i < ab8500->mask_size; i++) {
1237 /*
1238 * Interrupt register 12 doesn't exist prior to AB8500 version
1239 * 2.0
1240 */
1241 if (ab8500->irq_reg_offset[i] == 11 &&
1242 is_ab8500_1p1_or_earlier(ab8500))
1243 continue;
1244
1245 if (ab8500->irq_reg_offset[i] < 0)
1246 continue;
1247
1248 get_register_interruptible(ab8500, AB8500_INTERRUPT,
1249 AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i],
1250 &value);
1251 set_register_interruptible(ab8500, AB8500_INTERRUPT,
1252 AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i], 0xff);
1253 }
1254
1255 ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
1256 if (ret)
1257 return ret;
1258
1259 for (i = 0; i < ab8500->mask_size; i++)
1260 ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
1261
1262 ret = ab8500_irq_init(ab8500, np);
1263 if (ret)
1264 return ret;
1265
1266 ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL,
1267 ab8500_hierarchical_irq,
1268 IRQF_ONESHOT | IRQF_NO_SUSPEND,
1269 "ab8500", ab8500);
1270 if (ret)
1271 return ret;
1272
1273 if (is_ab9540(ab8500))
1274 ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
1275 ARRAY_SIZE(ab9540_devs), NULL,
1276 0, ab8500->domain);
1277 else if (is_ab8540(ab8500)) {
1278 ret = mfd_add_devices(ab8500->dev, 0, ab8540_devs,
1279 ARRAY_SIZE(ab8540_devs), NULL,
1280 0, ab8500->domain);
1281 if (ret)
1282 return ret;
1283
1284 if (is_ab8540_1p2_or_earlier(ab8500))
1285 ret = mfd_add_devices(ab8500->dev, 0, ab8540_cut1_devs,
1286 ARRAY_SIZE(ab8540_cut1_devs), NULL,
1287 0, ab8500->domain);
1288 else /* ab8540 >= cut2 */
1289 ret = mfd_add_devices(ab8500->dev, 0, ab8540_cut2_devs,
1290 ARRAY_SIZE(ab8540_cut2_devs), NULL,
1291 0, ab8500->domain);
1292 } else if (is_ab8505(ab8500))
1293 ret = mfd_add_devices(ab8500->dev, 0, ab8505_devs,
1294 ARRAY_SIZE(ab8505_devs), NULL,
1295 0, ab8500->domain);
1296 else
1297 ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
1298 ARRAY_SIZE(ab8500_devs), NULL,
1299 0, ab8500->domain);
1300 if (ret)
1301 return ret;
1302
1303 if (!no_bm) {
1304 /* Add battery management devices */
1305 ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
1306 ARRAY_SIZE(ab8500_bm_devs), NULL,
1307 0, ab8500->domain);
1308 if (ret)
1309 dev_err(ab8500->dev, "error adding bm devices\n");
1310 }
1311
1312 if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1313 ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))
1314 ret = sysfs_create_group(&ab8500->dev->kobj,
1315 &ab9540_attr_group);
1316 else
1317 ret = sysfs_create_group(&ab8500->dev->kobj,
1318 &ab8500_attr_group);
1319
1320 if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1321 ab8500->chip_id >= AB8500_CUT2P0)
1322 ret = sysfs_create_group(&ab8500->dev->kobj,
1323 &ab8505_attr_group);
1324
1325 if (ret)
1326 dev_err(ab8500->dev, "error creating sysfs entries\n");
1327
1328 return ret;
1329}
1330
1331static const struct platform_device_id ab8500_id[] = {
1332 { "ab8500-core", AB8500_VERSION_AB8500 },
1333 { "ab8505-i2c", AB8500_VERSION_AB8505 },
1334 { "ab9540-i2c", AB8500_VERSION_AB9540 },
1335 { "ab8540-i2c", AB8500_VERSION_AB8540 },
1336 { }
1337};
1338
1339static struct platform_driver ab8500_core_driver = {
1340 .driver = {
1341 .name = "ab8500-core",
1342 .suppress_bind_attrs = true,
1343 },
1344 .probe = ab8500_probe,
1345 .id_table = ab8500_id,
1346};
1347
1348static int __init ab8500_core_init(void)
1349{
1350 return platform_driver_register(&ab8500_core_driver);
1351}
1352core_initcall(ab8500_core_init);
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/abx500/ab8500.h>
21#include <linux/mfd/dbx500-prcmu.h>
22#include <linux/regulator/ab8500.h>
23#include <linux/of.h>
24#include <linux/of_device.h>
25
26/*
27 * Interrupt register offsets
28 * Bank : 0x0E
29 */
30#define AB8500_IT_SOURCE1_REG 0x00
31#define AB8500_IT_SOURCE2_REG 0x01
32#define AB8500_IT_SOURCE3_REG 0x02
33#define AB8500_IT_SOURCE4_REG 0x03
34#define AB8500_IT_SOURCE5_REG 0x04
35#define AB8500_IT_SOURCE6_REG 0x05
36#define AB8500_IT_SOURCE7_REG 0x06
37#define AB8500_IT_SOURCE8_REG 0x07
38#define AB9540_IT_SOURCE13_REG 0x0C
39#define AB8500_IT_SOURCE19_REG 0x12
40#define AB8500_IT_SOURCE20_REG 0x13
41#define AB8500_IT_SOURCE21_REG 0x14
42#define AB8500_IT_SOURCE22_REG 0x15
43#define AB8500_IT_SOURCE23_REG 0x16
44#define AB8500_IT_SOURCE24_REG 0x17
45
46/*
47 * latch registers
48 */
49#define AB8500_IT_LATCH1_REG 0x20
50#define AB8500_IT_LATCH2_REG 0x21
51#define AB8500_IT_LATCH3_REG 0x22
52#define AB8500_IT_LATCH4_REG 0x23
53#define AB8500_IT_LATCH5_REG 0x24
54#define AB8500_IT_LATCH6_REG 0x25
55#define AB8500_IT_LATCH7_REG 0x26
56#define AB8500_IT_LATCH8_REG 0x27
57#define AB8500_IT_LATCH9_REG 0x28
58#define AB8500_IT_LATCH10_REG 0x29
59#define AB8500_IT_LATCH12_REG 0x2B
60#define AB9540_IT_LATCH13_REG 0x2C
61#define AB8500_IT_LATCH19_REG 0x32
62#define AB8500_IT_LATCH20_REG 0x33
63#define AB8500_IT_LATCH21_REG 0x34
64#define AB8500_IT_LATCH22_REG 0x35
65#define AB8500_IT_LATCH23_REG 0x36
66#define AB8500_IT_LATCH24_REG 0x37
67
68/*
69 * mask registers
70 */
71
72#define AB8500_IT_MASK1_REG 0x40
73#define AB8500_IT_MASK2_REG 0x41
74#define AB8500_IT_MASK3_REG 0x42
75#define AB8500_IT_MASK4_REG 0x43
76#define AB8500_IT_MASK5_REG 0x44
77#define AB8500_IT_MASK6_REG 0x45
78#define AB8500_IT_MASK7_REG 0x46
79#define AB8500_IT_MASK8_REG 0x47
80#define AB8500_IT_MASK9_REG 0x48
81#define AB8500_IT_MASK10_REG 0x49
82#define AB8500_IT_MASK11_REG 0x4A
83#define AB8500_IT_MASK12_REG 0x4B
84#define AB8500_IT_MASK13_REG 0x4C
85#define AB8500_IT_MASK14_REG 0x4D
86#define AB8500_IT_MASK15_REG 0x4E
87#define AB8500_IT_MASK16_REG 0x4F
88#define AB8500_IT_MASK17_REG 0x50
89#define AB8500_IT_MASK18_REG 0x51
90#define AB8500_IT_MASK19_REG 0x52
91#define AB8500_IT_MASK20_REG 0x53
92#define AB8500_IT_MASK21_REG 0x54
93#define AB8500_IT_MASK22_REG 0x55
94#define AB8500_IT_MASK23_REG 0x56
95#define AB8500_IT_MASK24_REG 0x57
96
97/*
98 * latch hierarchy registers
99 */
100#define AB8500_IT_LATCHHIER1_REG 0x60
101#define AB8500_IT_LATCHHIER2_REG 0x61
102#define AB8500_IT_LATCHHIER3_REG 0x62
103
104#define AB8500_IT_LATCHHIER_NUM 3
105
106#define AB8500_REV_REG 0x80
107#define AB8500_IC_NAME_REG 0x82
108#define AB8500_SWITCH_OFF_STATUS 0x00
109
110#define AB8500_TURN_ON_STATUS 0x00
111
112static bool no_bm; /* No battery management */
113module_param(no_bm, bool, S_IRUGO);
114
115#define AB9540_MODEM_CTRL2_REG 0x23
116#define AB9540_MODEM_CTRL2_SWDBBRSTN_BIT BIT(2)
117
118/*
119 * Map interrupt numbers to the LATCH and MASK register offsets, Interrupt
120 * numbers are indexed into this array with (num / 8). The interupts are
121 * defined in linux/mfd/ab8500.h
122 *
123 * This is one off from the register names, i.e. AB8500_IT_MASK1_REG is at
124 * offset 0.
125 */
126/* AB8500 support */
127static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = {
128 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21,
129};
130
131/* AB9540 support */
132static const int ab9540_irq_regoffset[AB9540_NUM_IRQ_REGS] = {
133 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24,
134};
135
136static const char ab8500_version_str[][7] = {
137 [AB8500_VERSION_AB8500] = "AB8500",
138 [AB8500_VERSION_AB8505] = "AB8505",
139 [AB8500_VERSION_AB9540] = "AB9540",
140 [AB8500_VERSION_AB8540] = "AB8540",
141};
142
143static int ab8500_i2c_write(struct ab8500 *ab8500, u16 addr, u8 data)
144{
145 int ret;
146
147 ret = prcmu_abb_write((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
148 if (ret < 0)
149 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
150 return ret;
151}
152
153static int ab8500_i2c_write_masked(struct ab8500 *ab8500, u16 addr, u8 mask,
154 u8 data)
155{
156 int ret;
157
158 ret = prcmu_abb_write_masked((u8)(addr >> 8), (u8)(addr & 0xFF), &data,
159 &mask, 1);
160 if (ret < 0)
161 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
162 return ret;
163}
164
165static int ab8500_i2c_read(struct ab8500 *ab8500, u16 addr)
166{
167 int ret;
168 u8 data;
169
170 ret = prcmu_abb_read((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
171 if (ret < 0) {
172 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
173 return ret;
174 }
175 return (int)data;
176}
177
178static int ab8500_get_chip_id(struct device *dev)
179{
180 struct ab8500 *ab8500;
181
182 if (!dev)
183 return -EINVAL;
184 ab8500 = dev_get_drvdata(dev->parent);
185 return ab8500 ? (int)ab8500->chip_id : -EINVAL;
186}
187
188static int set_register_interruptible(struct ab8500 *ab8500, u8 bank,
189 u8 reg, u8 data)
190{
191 int ret;
192 /*
193 * Put the u8 bank and u8 register together into a an u16.
194 * The bank on higher 8 bits and register in lower 8 bits.
195 * */
196 u16 addr = ((u16)bank) << 8 | reg;
197
198 dev_vdbg(ab8500->dev, "wr: addr %#x <= %#x\n", addr, data);
199
200 mutex_lock(&ab8500->lock);
201
202 ret = ab8500->write(ab8500, addr, data);
203 if (ret < 0)
204 dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
205 addr, ret);
206 mutex_unlock(&ab8500->lock);
207
208 return ret;
209}
210
211static int ab8500_set_register(struct device *dev, u8 bank,
212 u8 reg, u8 value)
213{
214 int ret;
215 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
216
217 atomic_inc(&ab8500->transfer_ongoing);
218 ret = set_register_interruptible(ab8500, bank, reg, value);
219 atomic_dec(&ab8500->transfer_ongoing);
220 return ret;
221}
222
223static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
224 u8 reg, u8 *value)
225{
226 int ret;
227 /* put the u8 bank and u8 reg together into a an u16.
228 * bank on higher 8 bits and reg in lower */
229 u16 addr = ((u16)bank) << 8 | reg;
230
231 mutex_lock(&ab8500->lock);
232
233 ret = ab8500->read(ab8500, addr);
234 if (ret < 0)
235 dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
236 addr, ret);
237 else
238 *value = ret;
239
240 mutex_unlock(&ab8500->lock);
241 dev_vdbg(ab8500->dev, "rd: addr %#x => data %#x\n", addr, ret);
242
243 return ret;
244}
245
246static int ab8500_get_register(struct device *dev, u8 bank,
247 u8 reg, u8 *value)
248{
249 int ret;
250 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
251
252 atomic_inc(&ab8500->transfer_ongoing);
253 ret = get_register_interruptible(ab8500, bank, reg, value);
254 atomic_dec(&ab8500->transfer_ongoing);
255 return ret;
256}
257
258static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank,
259 u8 reg, u8 bitmask, u8 bitvalues)
260{
261 int ret;
262 /* put the u8 bank and u8 reg together into a an u16.
263 * bank on higher 8 bits and reg in lower */
264 u16 addr = ((u16)bank) << 8 | reg;
265
266 mutex_lock(&ab8500->lock);
267
268 if (ab8500->write_masked == NULL) {
269 u8 data;
270
271 ret = ab8500->read(ab8500, addr);
272 if (ret < 0) {
273 dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
274 addr, ret);
275 goto out;
276 }
277
278 data = (u8)ret;
279 data = (~bitmask & data) | (bitmask & bitvalues);
280
281 ret = ab8500->write(ab8500, addr, data);
282 if (ret < 0)
283 dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
284 addr, ret);
285
286 dev_vdbg(ab8500->dev, "mask: addr %#x => data %#x\n", addr,
287 data);
288 goto out;
289 }
290 ret = ab8500->write_masked(ab8500, addr, bitmask, bitvalues);
291 if (ret < 0)
292 dev_err(ab8500->dev, "failed to modify reg %#x: %d\n", addr,
293 ret);
294out:
295 mutex_unlock(&ab8500->lock);
296 return ret;
297}
298
299static int ab8500_mask_and_set_register(struct device *dev,
300 u8 bank, u8 reg, u8 bitmask, u8 bitvalues)
301{
302 int ret;
303 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
304
305 atomic_inc(&ab8500->transfer_ongoing);
306 ret= mask_and_set_register_interruptible(ab8500, bank, reg,
307 bitmask, bitvalues);
308 atomic_dec(&ab8500->transfer_ongoing);
309 return ret;
310}
311
312static struct abx500_ops ab8500_ops = {
313 .get_chip_id = ab8500_get_chip_id,
314 .get_register = ab8500_get_register,
315 .set_register = ab8500_set_register,
316 .get_register_page = NULL,
317 .set_register_page = NULL,
318 .mask_and_set_register = ab8500_mask_and_set_register,
319 .event_registers_startup_state_get = NULL,
320 .startup_irq_enabled = NULL,
321};
322
323static void ab8500_irq_lock(struct irq_data *data)
324{
325 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
326
327 mutex_lock(&ab8500->irq_lock);
328 atomic_inc(&ab8500->transfer_ongoing);
329}
330
331static void ab8500_irq_sync_unlock(struct irq_data *data)
332{
333 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
334 int i;
335
336 for (i = 0; i < ab8500->mask_size; i++) {
337 u8 old = ab8500->oldmask[i];
338 u8 new = ab8500->mask[i];
339 int reg;
340
341 if (new == old)
342 continue;
343
344 /*
345 * Interrupt register 12 doesn't exist prior to AB8500 version
346 * 2.0
347 */
348 if (ab8500->irq_reg_offset[i] == 11 &&
349 is_ab8500_1p1_or_earlier(ab8500))
350 continue;
351
352 ab8500->oldmask[i] = new;
353
354 reg = AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i];
355 set_register_interruptible(ab8500, AB8500_INTERRUPT, reg, new);
356 }
357 atomic_dec(&ab8500->transfer_ongoing);
358 mutex_unlock(&ab8500->irq_lock);
359}
360
361static void ab8500_irq_mask(struct irq_data *data)
362{
363 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
364 int offset = data->irq - ab8500->irq_base;
365 int index = offset / 8;
366 int mask = 1 << (offset % 8);
367
368 ab8500->mask[index] |= mask;
369}
370
371static void ab8500_irq_unmask(struct irq_data *data)
372{
373 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
374 int offset = data->irq - ab8500->irq_base;
375 int index = offset / 8;
376 int mask = 1 << (offset % 8);
377
378 ab8500->mask[index] &= ~mask;
379}
380
381static struct irq_chip ab8500_irq_chip = {
382 .name = "ab8500",
383 .irq_bus_lock = ab8500_irq_lock,
384 .irq_bus_sync_unlock = ab8500_irq_sync_unlock,
385 .irq_mask = ab8500_irq_mask,
386 .irq_disable = ab8500_irq_mask,
387 .irq_unmask = ab8500_irq_unmask,
388};
389
390static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
391 int latch_offset, u8 latch_val)
392{
393 int int_bit = __ffs(latch_val);
394 int line, i;
395
396 do {
397 int_bit = __ffs(latch_val);
398
399 for (i = 0; i < ab8500->mask_size; i++)
400 if (ab8500->irq_reg_offset[i] == latch_offset)
401 break;
402
403 if (i >= ab8500->mask_size) {
404 dev_err(ab8500->dev, "Register offset 0x%2x not declared\n",
405 latch_offset);
406 return -ENXIO;
407 }
408
409 line = (i << 3) + int_bit;
410 latch_val &= ~(1 << int_bit);
411
412 handle_nested_irq(ab8500->irq_base + line);
413 } while (latch_val);
414
415 return 0;
416}
417
418static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500,
419 int hier_offset, u8 hier_val)
420{
421 int latch_bit, status;
422 u8 latch_offset, latch_val;
423
424 do {
425 latch_bit = __ffs(hier_val);
426 latch_offset = (hier_offset << 3) + latch_bit;
427
428 /* Fix inconsistent ITFromLatch25 bit mapping... */
429 if (unlikely(latch_offset == 17))
430 latch_offset = 24;
431
432 status = get_register_interruptible(ab8500,
433 AB8500_INTERRUPT,
434 AB8500_IT_LATCH1_REG + latch_offset,
435 &latch_val);
436 if (status < 0 || latch_val == 0)
437 goto discard;
438
439 status = ab8500_handle_hierarchical_line(ab8500,
440 latch_offset, latch_val);
441 if (status < 0)
442 return status;
443discard:
444 hier_val &= ~(1 << latch_bit);
445 } while (hier_val);
446
447 return 0;
448}
449
450static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev)
451{
452 struct ab8500 *ab8500 = dev;
453 u8 i;
454
455 dev_vdbg(ab8500->dev, "interrupt\n");
456
457 /* Hierarchical interrupt version */
458 for (i = 0; i < AB8500_IT_LATCHHIER_NUM; i++) {
459 int status;
460 u8 hier_val;
461
462 status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
463 AB8500_IT_LATCHHIER1_REG + i, &hier_val);
464 if (status < 0 || hier_val == 0)
465 continue;
466
467 status = ab8500_handle_hierarchical_latch(ab8500, i, hier_val);
468 if (status < 0)
469 break;
470 }
471 return IRQ_HANDLED;
472}
473
474static irqreturn_t ab8500_irq(int irq, void *dev)
475{
476 struct ab8500 *ab8500 = dev;
477 int i;
478
479 dev_vdbg(ab8500->dev, "interrupt\n");
480
481 atomic_inc(&ab8500->transfer_ongoing);
482
483 for (i = 0; i < ab8500->mask_size; i++) {
484 int regoffset = ab8500->irq_reg_offset[i];
485 int status;
486 u8 value;
487
488 /*
489 * Interrupt register 12 doesn't exist prior to AB8500 version
490 * 2.0
491 */
492 if (regoffset == 11 && is_ab8500_1p1_or_earlier(ab8500))
493 continue;
494
495 status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
496 AB8500_IT_LATCH1_REG + regoffset, &value);
497 if (status < 0 || value == 0)
498 continue;
499
500 do {
501 int bit = __ffs(value);
502 int line = i * 8 + bit;
503
504 handle_nested_irq(ab8500->irq_base + line);
505 value &= ~(1 << bit);
506
507 } while (value);
508 }
509 atomic_dec(&ab8500->transfer_ongoing);
510 return IRQ_HANDLED;
511}
512
513static int ab8500_irq_init(struct ab8500 *ab8500)
514{
515 int base = ab8500->irq_base;
516 int irq;
517 int num_irqs;
518
519 if (is_ab9540(ab8500))
520 num_irqs = AB9540_NR_IRQS;
521 else if (is_ab8505(ab8500))
522 num_irqs = AB8505_NR_IRQS;
523 else
524 num_irqs = AB8500_NR_IRQS;
525
526 for (irq = base; irq < base + num_irqs; irq++) {
527 irq_set_chip_data(irq, ab8500);
528 irq_set_chip_and_handler(irq, &ab8500_irq_chip,
529 handle_simple_irq);
530 irq_set_nested_thread(irq, 1);
531#ifdef CONFIG_ARM
532 set_irq_flags(irq, IRQF_VALID);
533#else
534 irq_set_noprobe(irq);
535#endif
536 }
537
538 return 0;
539}
540
541static void ab8500_irq_remove(struct ab8500 *ab8500)
542{
543 int base = ab8500->irq_base;
544 int irq;
545 int num_irqs;
546
547 if (is_ab9540(ab8500))
548 num_irqs = AB9540_NR_IRQS;
549 else if (is_ab8505(ab8500))
550 num_irqs = AB8505_NR_IRQS;
551 else
552 num_irqs = AB8500_NR_IRQS;
553
554 for (irq = base; irq < base + num_irqs; irq++) {
555#ifdef CONFIG_ARM
556 set_irq_flags(irq, 0);
557#endif
558 irq_set_chip_and_handler(irq, NULL, NULL);
559 irq_set_chip_data(irq, NULL);
560 }
561}
562
563int ab8500_suspend(struct ab8500 *ab8500)
564{
565 if (atomic_read(&ab8500->transfer_ongoing))
566 return -EINVAL;
567 else
568 return 0;
569}
570
571/* AB8500 GPIO Resources */
572static struct resource __devinitdata ab8500_gpio_resources[] = {
573 {
574 .name = "GPIO_INT6",
575 .start = AB8500_INT_GPIO6R,
576 .end = AB8500_INT_GPIO41F,
577 .flags = IORESOURCE_IRQ,
578 }
579};
580
581/* AB9540 GPIO Resources */
582static struct resource __devinitdata ab9540_gpio_resources[] = {
583 {
584 .name = "GPIO_INT6",
585 .start = AB8500_INT_GPIO6R,
586 .end = AB8500_INT_GPIO41F,
587 .flags = IORESOURCE_IRQ,
588 },
589 {
590 .name = "GPIO_INT14",
591 .start = AB9540_INT_GPIO50R,
592 .end = AB9540_INT_GPIO54R,
593 .flags = IORESOURCE_IRQ,
594 },
595 {
596 .name = "GPIO_INT15",
597 .start = AB9540_INT_GPIO50F,
598 .end = AB9540_INT_GPIO54F,
599 .flags = IORESOURCE_IRQ,
600 }
601};
602
603static struct resource __devinitdata ab8500_gpadc_resources[] = {
604 {
605 .name = "HW_CONV_END",
606 .start = AB8500_INT_GP_HW_ADC_CONV_END,
607 .end = AB8500_INT_GP_HW_ADC_CONV_END,
608 .flags = IORESOURCE_IRQ,
609 },
610 {
611 .name = "SW_CONV_END",
612 .start = AB8500_INT_GP_SW_ADC_CONV_END,
613 .end = AB8500_INT_GP_SW_ADC_CONV_END,
614 .flags = IORESOURCE_IRQ,
615 },
616};
617
618static struct resource __devinitdata ab8500_rtc_resources[] = {
619 {
620 .name = "60S",
621 .start = AB8500_INT_RTC_60S,
622 .end = AB8500_INT_RTC_60S,
623 .flags = IORESOURCE_IRQ,
624 },
625 {
626 .name = "ALARM",
627 .start = AB8500_INT_RTC_ALARM,
628 .end = AB8500_INT_RTC_ALARM,
629 .flags = IORESOURCE_IRQ,
630 },
631};
632
633static struct resource __devinitdata ab8500_poweronkey_db_resources[] = {
634 {
635 .name = "ONKEY_DBF",
636 .start = AB8500_INT_PON_KEY1DB_F,
637 .end = AB8500_INT_PON_KEY1DB_F,
638 .flags = IORESOURCE_IRQ,
639 },
640 {
641 .name = "ONKEY_DBR",
642 .start = AB8500_INT_PON_KEY1DB_R,
643 .end = AB8500_INT_PON_KEY1DB_R,
644 .flags = IORESOURCE_IRQ,
645 },
646};
647
648static struct resource __devinitdata ab8500_av_acc_detect_resources[] = {
649 {
650 .name = "ACC_DETECT_1DB_F",
651 .start = AB8500_INT_ACC_DETECT_1DB_F,
652 .end = AB8500_INT_ACC_DETECT_1DB_F,
653 .flags = IORESOURCE_IRQ,
654 },
655 {
656 .name = "ACC_DETECT_1DB_R",
657 .start = AB8500_INT_ACC_DETECT_1DB_R,
658 .end = AB8500_INT_ACC_DETECT_1DB_R,
659 .flags = IORESOURCE_IRQ,
660 },
661 {
662 .name = "ACC_DETECT_21DB_F",
663 .start = AB8500_INT_ACC_DETECT_21DB_F,
664 .end = AB8500_INT_ACC_DETECT_21DB_F,
665 .flags = IORESOURCE_IRQ,
666 },
667 {
668 .name = "ACC_DETECT_21DB_R",
669 .start = AB8500_INT_ACC_DETECT_21DB_R,
670 .end = AB8500_INT_ACC_DETECT_21DB_R,
671 .flags = IORESOURCE_IRQ,
672 },
673 {
674 .name = "ACC_DETECT_22DB_F",
675 .start = AB8500_INT_ACC_DETECT_22DB_F,
676 .end = AB8500_INT_ACC_DETECT_22DB_F,
677 .flags = IORESOURCE_IRQ,
678 },
679 {
680 .name = "ACC_DETECT_22DB_R",
681 .start = AB8500_INT_ACC_DETECT_22DB_R,
682 .end = AB8500_INT_ACC_DETECT_22DB_R,
683 .flags = IORESOURCE_IRQ,
684 },
685};
686
687static struct resource __devinitdata ab8500_charger_resources[] = {
688 {
689 .name = "MAIN_CH_UNPLUG_DET",
690 .start = AB8500_INT_MAIN_CH_UNPLUG_DET,
691 .end = AB8500_INT_MAIN_CH_UNPLUG_DET,
692 .flags = IORESOURCE_IRQ,
693 },
694 {
695 .name = "MAIN_CHARGE_PLUG_DET",
696 .start = AB8500_INT_MAIN_CH_PLUG_DET,
697 .end = AB8500_INT_MAIN_CH_PLUG_DET,
698 .flags = IORESOURCE_IRQ,
699 },
700 {
701 .name = "VBUS_DET_R",
702 .start = AB8500_INT_VBUS_DET_R,
703 .end = AB8500_INT_VBUS_DET_R,
704 .flags = IORESOURCE_IRQ,
705 },
706 {
707 .name = "VBUS_DET_F",
708 .start = AB8500_INT_VBUS_DET_F,
709 .end = AB8500_INT_VBUS_DET_F,
710 .flags = IORESOURCE_IRQ,
711 },
712 {
713 .name = "USB_LINK_STATUS",
714 .start = AB8500_INT_USB_LINK_STATUS,
715 .end = AB8500_INT_USB_LINK_STATUS,
716 .flags = IORESOURCE_IRQ,
717 },
718 {
719 .name = "VBUS_OVV",
720 .start = AB8500_INT_VBUS_OVV,
721 .end = AB8500_INT_VBUS_OVV,
722 .flags = IORESOURCE_IRQ,
723 },
724 {
725 .name = "USB_CH_TH_PROT_R",
726 .start = AB8500_INT_USB_CH_TH_PROT_R,
727 .end = AB8500_INT_USB_CH_TH_PROT_R,
728 .flags = IORESOURCE_IRQ,
729 },
730 {
731 .name = "USB_CH_TH_PROT_F",
732 .start = AB8500_INT_USB_CH_TH_PROT_F,
733 .end = AB8500_INT_USB_CH_TH_PROT_F,
734 .flags = IORESOURCE_IRQ,
735 },
736 {
737 .name = "MAIN_EXT_CH_NOT_OK",
738 .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
739 .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
740 .flags = IORESOURCE_IRQ,
741 },
742 {
743 .name = "MAIN_CH_TH_PROT_R",
744 .start = AB8500_INT_MAIN_CH_TH_PROT_R,
745 .end = AB8500_INT_MAIN_CH_TH_PROT_R,
746 .flags = IORESOURCE_IRQ,
747 },
748 {
749 .name = "MAIN_CH_TH_PROT_F",
750 .start = AB8500_INT_MAIN_CH_TH_PROT_F,
751 .end = AB8500_INT_MAIN_CH_TH_PROT_F,
752 .flags = IORESOURCE_IRQ,
753 },
754 {
755 .name = "USB_CHARGER_NOT_OKR",
756 .start = AB8500_INT_USB_CHARGER_NOT_OKR,
757 .end = AB8500_INT_USB_CHARGER_NOT_OKR,
758 .flags = IORESOURCE_IRQ,
759 },
760 {
761 .name = "CH_WD_EXP",
762 .start = AB8500_INT_CH_WD_EXP,
763 .end = AB8500_INT_CH_WD_EXP,
764 .flags = IORESOURCE_IRQ,
765 },
766};
767
768static struct resource __devinitdata ab8500_btemp_resources[] = {
769 {
770 .name = "BAT_CTRL_INDB",
771 .start = AB8500_INT_BAT_CTRL_INDB,
772 .end = AB8500_INT_BAT_CTRL_INDB,
773 .flags = IORESOURCE_IRQ,
774 },
775 {
776 .name = "BTEMP_LOW",
777 .start = AB8500_INT_BTEMP_LOW,
778 .end = AB8500_INT_BTEMP_LOW,
779 .flags = IORESOURCE_IRQ,
780 },
781 {
782 .name = "BTEMP_HIGH",
783 .start = AB8500_INT_BTEMP_HIGH,
784 .end = AB8500_INT_BTEMP_HIGH,
785 .flags = IORESOURCE_IRQ,
786 },
787 {
788 .name = "BTEMP_LOW_MEDIUM",
789 .start = AB8500_INT_BTEMP_LOW_MEDIUM,
790 .end = AB8500_INT_BTEMP_LOW_MEDIUM,
791 .flags = IORESOURCE_IRQ,
792 },
793 {
794 .name = "BTEMP_MEDIUM_HIGH",
795 .start = AB8500_INT_BTEMP_MEDIUM_HIGH,
796 .end = AB8500_INT_BTEMP_MEDIUM_HIGH,
797 .flags = IORESOURCE_IRQ,
798 },
799};
800
801static struct resource __devinitdata ab8500_fg_resources[] = {
802 {
803 .name = "NCONV_ACCU",
804 .start = AB8500_INT_CCN_CONV_ACC,
805 .end = AB8500_INT_CCN_CONV_ACC,
806 .flags = IORESOURCE_IRQ,
807 },
808 {
809 .name = "BATT_OVV",
810 .start = AB8500_INT_BATT_OVV,
811 .end = AB8500_INT_BATT_OVV,
812 .flags = IORESOURCE_IRQ,
813 },
814 {
815 .name = "LOW_BAT_F",
816 .start = AB8500_INT_LOW_BAT_F,
817 .end = AB8500_INT_LOW_BAT_F,
818 .flags = IORESOURCE_IRQ,
819 },
820 {
821 .name = "LOW_BAT_R",
822 .start = AB8500_INT_LOW_BAT_R,
823 .end = AB8500_INT_LOW_BAT_R,
824 .flags = IORESOURCE_IRQ,
825 },
826 {
827 .name = "CC_INT_CALIB",
828 .start = AB8500_INT_CC_INT_CALIB,
829 .end = AB8500_INT_CC_INT_CALIB,
830 .flags = IORESOURCE_IRQ,
831 },
832 {
833 .name = "CCEOC",
834 .start = AB8500_INT_CCEOC,
835 .end = AB8500_INT_CCEOC,
836 .flags = IORESOURCE_IRQ,
837 },
838};
839
840static struct resource __devinitdata ab8500_chargalg_resources[] = {};
841
842#ifdef CONFIG_DEBUG_FS
843static struct resource __devinitdata ab8500_debug_resources[] = {
844 {
845 .name = "IRQ_FIRST",
846 .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
847 .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
848 .flags = IORESOURCE_IRQ,
849 },
850 {
851 .name = "IRQ_LAST",
852 .start = AB8500_INT_XTAL32K_KO,
853 .end = AB8500_INT_XTAL32K_KO,
854 .flags = IORESOURCE_IRQ,
855 },
856};
857#endif
858
859static struct resource __devinitdata ab8500_usb_resources[] = {
860 {
861 .name = "ID_WAKEUP_R",
862 .start = AB8500_INT_ID_WAKEUP_R,
863 .end = AB8500_INT_ID_WAKEUP_R,
864 .flags = IORESOURCE_IRQ,
865 },
866 {
867 .name = "ID_WAKEUP_F",
868 .start = AB8500_INT_ID_WAKEUP_F,
869 .end = AB8500_INT_ID_WAKEUP_F,
870 .flags = IORESOURCE_IRQ,
871 },
872 {
873 .name = "VBUS_DET_F",
874 .start = AB8500_INT_VBUS_DET_F,
875 .end = AB8500_INT_VBUS_DET_F,
876 .flags = IORESOURCE_IRQ,
877 },
878 {
879 .name = "VBUS_DET_R",
880 .start = AB8500_INT_VBUS_DET_R,
881 .end = AB8500_INT_VBUS_DET_R,
882 .flags = IORESOURCE_IRQ,
883 },
884 {
885 .name = "USB_LINK_STATUS",
886 .start = AB8500_INT_USB_LINK_STATUS,
887 .end = AB8500_INT_USB_LINK_STATUS,
888 .flags = IORESOURCE_IRQ,
889 },
890 {
891 .name = "USB_ADP_PROBE_PLUG",
892 .start = AB8500_INT_ADP_PROBE_PLUG,
893 .end = AB8500_INT_ADP_PROBE_PLUG,
894 .flags = IORESOURCE_IRQ,
895 },
896 {
897 .name = "USB_ADP_PROBE_UNPLUG",
898 .start = AB8500_INT_ADP_PROBE_UNPLUG,
899 .end = AB8500_INT_ADP_PROBE_UNPLUG,
900 .flags = IORESOURCE_IRQ,
901 },
902};
903
904static struct resource __devinitdata ab8505_iddet_resources[] = {
905 {
906 .name = "KeyDeglitch",
907 .start = AB8505_INT_KEYDEGLITCH,
908 .end = AB8505_INT_KEYDEGLITCH,
909 .flags = IORESOURCE_IRQ,
910 },
911 {
912 .name = "KP",
913 .start = AB8505_INT_KP,
914 .end = AB8505_INT_KP,
915 .flags = IORESOURCE_IRQ,
916 },
917 {
918 .name = "IKP",
919 .start = AB8505_INT_IKP,
920 .end = AB8505_INT_IKP,
921 .flags = IORESOURCE_IRQ,
922 },
923 {
924 .name = "IKR",
925 .start = AB8505_INT_IKR,
926 .end = AB8505_INT_IKR,
927 .flags = IORESOURCE_IRQ,
928 },
929 {
930 .name = "KeyStuck",
931 .start = AB8505_INT_KEYSTUCK,
932 .end = AB8505_INT_KEYSTUCK,
933 .flags = IORESOURCE_IRQ,
934 },
935};
936
937static struct resource __devinitdata ab8500_temp_resources[] = {
938 {
939 .name = "AB8500_TEMP_WARM",
940 .start = AB8500_INT_TEMP_WARM,
941 .end = AB8500_INT_TEMP_WARM,
942 .flags = IORESOURCE_IRQ,
943 },
944};
945
946static struct mfd_cell __devinitdata abx500_common_devs[] = {
947#ifdef CONFIG_DEBUG_FS
948 {
949 .name = "ab8500-debug",
950 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
951 .resources = ab8500_debug_resources,
952 },
953#endif
954 {
955 .name = "ab8500-sysctrl",
956 },
957 {
958 .name = "ab8500-regulator",
959 },
960 {
961 .name = "ab8500-gpadc",
962 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
963 .resources = ab8500_gpadc_resources,
964 },
965 {
966 .name = "ab8500-rtc",
967 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
968 .resources = ab8500_rtc_resources,
969 },
970 {
971 .name = "ab8500-acc-det",
972 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
973 .resources = ab8500_av_acc_detect_resources,
974 },
975 {
976 .name = "ab8500-poweron-key",
977 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
978 .resources = ab8500_poweronkey_db_resources,
979 },
980 {
981 .name = "ab8500-pwm",
982 .id = 1,
983 },
984 {
985 .name = "ab8500-pwm",
986 .id = 2,
987 },
988 {
989 .name = "ab8500-pwm",
990 .id = 3,
991 },
992 { .name = "ab8500-leds", },
993 {
994 .name = "ab8500-denc",
995 },
996 {
997 .name = "ab8500-temp",
998 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
999 .resources = ab8500_temp_resources,
1000 },
1001};
1002
1003static struct mfd_cell __devinitdata ab8500_bm_devs[] = {
1004 {
1005 .name = "ab8500-charger",
1006 .num_resources = ARRAY_SIZE(ab8500_charger_resources),
1007 .resources = ab8500_charger_resources,
1008 },
1009 {
1010 .name = "ab8500-btemp",
1011 .num_resources = ARRAY_SIZE(ab8500_btemp_resources),
1012 .resources = ab8500_btemp_resources,
1013 },
1014 {
1015 .name = "ab8500-fg",
1016 .num_resources = ARRAY_SIZE(ab8500_fg_resources),
1017 .resources = ab8500_fg_resources,
1018 },
1019 {
1020 .name = "ab8500-chargalg",
1021 .num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
1022 .resources = ab8500_chargalg_resources,
1023 },
1024};
1025
1026static struct mfd_cell __devinitdata ab8500_devs[] = {
1027 {
1028 .name = "ab8500-gpio",
1029 .num_resources = ARRAY_SIZE(ab8500_gpio_resources),
1030 .resources = ab8500_gpio_resources,
1031 },
1032 {
1033 .name = "ab8500-usb",
1034 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1035 .resources = ab8500_usb_resources,
1036 },
1037 {
1038 .name = "ab8500-codec",
1039 },
1040};
1041
1042static struct mfd_cell __devinitdata ab9540_devs[] = {
1043 {
1044 .name = "ab8500-gpio",
1045 .num_resources = ARRAY_SIZE(ab9540_gpio_resources),
1046 .resources = ab9540_gpio_resources,
1047 },
1048 {
1049 .name = "ab9540-usb",
1050 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1051 .resources = ab8500_usb_resources,
1052 },
1053 {
1054 .name = "ab9540-codec",
1055 },
1056};
1057
1058/* Device list common to ab9540 and ab8505 */
1059static struct mfd_cell __devinitdata ab9540_ab8505_devs[] = {
1060 {
1061 .name = "ab-iddet",
1062 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1063 .resources = ab8505_iddet_resources,
1064 },
1065};
1066
1067static ssize_t show_chip_id(struct device *dev,
1068 struct device_attribute *attr, char *buf)
1069{
1070 struct ab8500 *ab8500;
1071
1072 ab8500 = dev_get_drvdata(dev);
1073 return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
1074}
1075
1076/*
1077 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1078 * 0x01 Swoff bit programming
1079 * 0x02 Thermal protection activation
1080 * 0x04 Vbat lower then BattOk falling threshold
1081 * 0x08 Watchdog expired
1082 * 0x10 Non presence of 32kHz clock
1083 * 0x20 Battery level lower than power on reset threshold
1084 * 0x40 Power on key 1 pressed longer than 10 seconds
1085 * 0x80 DB8500 thermal shutdown
1086 */
1087static ssize_t show_switch_off_status(struct device *dev,
1088 struct device_attribute *attr, char *buf)
1089{
1090 int ret;
1091 u8 value;
1092 struct ab8500 *ab8500;
1093
1094 ab8500 = dev_get_drvdata(dev);
1095 ret = get_register_interruptible(ab8500, AB8500_RTC,
1096 AB8500_SWITCH_OFF_STATUS, &value);
1097 if (ret < 0)
1098 return ret;
1099 return sprintf(buf, "%#x\n", value);
1100}
1101
1102/*
1103 * ab8500 has turned on due to (TURN_ON_STATUS):
1104 * 0x01 PORnVbat
1105 * 0x02 PonKey1dbF
1106 * 0x04 PonKey2dbF
1107 * 0x08 RTCAlarm
1108 * 0x10 MainChDet
1109 * 0x20 VbusDet
1110 * 0x40 UsbIDDetect
1111 * 0x80 Reserved
1112 */
1113static ssize_t show_turn_on_status(struct device *dev,
1114 struct device_attribute *attr, char *buf)
1115{
1116 int ret;
1117 u8 value;
1118 struct ab8500 *ab8500;
1119
1120 ab8500 = dev_get_drvdata(dev);
1121 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1122 AB8500_TURN_ON_STATUS, &value);
1123 if (ret < 0)
1124 return ret;
1125 return sprintf(buf, "%#x\n", value);
1126}
1127
1128static ssize_t show_ab9540_dbbrstn(struct device *dev,
1129 struct device_attribute *attr, char *buf)
1130{
1131 struct ab8500 *ab8500;
1132 int ret;
1133 u8 value;
1134
1135 ab8500 = dev_get_drvdata(dev);
1136
1137 ret = get_register_interruptible(ab8500, AB8500_REGU_CTRL2,
1138 AB9540_MODEM_CTRL2_REG, &value);
1139 if (ret < 0)
1140 return ret;
1141
1142 return sprintf(buf, "%d\n",
1143 (value & AB9540_MODEM_CTRL2_SWDBBRSTN_BIT) ? 1 : 0);
1144}
1145
1146static ssize_t store_ab9540_dbbrstn(struct device *dev,
1147 struct device_attribute *attr, const char *buf, size_t count)
1148{
1149 struct ab8500 *ab8500;
1150 int ret = count;
1151 int err;
1152 u8 bitvalues;
1153
1154 ab8500 = dev_get_drvdata(dev);
1155
1156 if (count > 0) {
1157 switch (buf[0]) {
1158 case '0':
1159 bitvalues = 0;
1160 break;
1161 case '1':
1162 bitvalues = AB9540_MODEM_CTRL2_SWDBBRSTN_BIT;
1163 break;
1164 default:
1165 goto exit;
1166 }
1167
1168 err = mask_and_set_register_interruptible(ab8500,
1169 AB8500_REGU_CTRL2, AB9540_MODEM_CTRL2_REG,
1170 AB9540_MODEM_CTRL2_SWDBBRSTN_BIT, bitvalues);
1171 if (err)
1172 dev_info(ab8500->dev,
1173 "Failed to set DBBRSTN %c, err %#x\n",
1174 buf[0], err);
1175 }
1176
1177exit:
1178 return ret;
1179}
1180
1181static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);
1182static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);
1183static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL);
1184static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,
1185 show_ab9540_dbbrstn, store_ab9540_dbbrstn);
1186
1187static struct attribute *ab8500_sysfs_entries[] = {
1188 &dev_attr_chip_id.attr,
1189 &dev_attr_switch_off_status.attr,
1190 &dev_attr_turn_on_status.attr,
1191 NULL,
1192};
1193
1194static struct attribute *ab9540_sysfs_entries[] = {
1195 &dev_attr_chip_id.attr,
1196 &dev_attr_switch_off_status.attr,
1197 &dev_attr_turn_on_status.attr,
1198 &dev_attr_dbbrstn.attr,
1199 NULL,
1200};
1201
1202static struct attribute_group ab8500_attr_group = {
1203 .attrs = ab8500_sysfs_entries,
1204};
1205
1206static struct attribute_group ab9540_attr_group = {
1207 .attrs = ab9540_sysfs_entries,
1208};
1209
1210static const struct of_device_id ab8500_match[] = {
1211 {
1212 .compatible = "stericsson,ab8500",
1213 .data = (void *)AB8500_VERSION_AB8500,
1214 },
1215 {},
1216};
1217
1218static int __devinit ab8500_probe(struct platform_device *pdev)
1219{
1220 struct ab8500_platform_data *plat = dev_get_platdata(&pdev->dev);
1221 const struct platform_device_id *platid = platform_get_device_id(pdev);
1222 enum ab8500_version version = AB8500_VERSION_UNDEFINED;
1223 struct device_node *np = pdev->dev.of_node;
1224 struct ab8500 *ab8500;
1225 struct resource *resource;
1226 int ret;
1227 int i;
1228 u8 value;
1229
1230 ab8500 = kzalloc(sizeof *ab8500, GFP_KERNEL);
1231 if (!ab8500)
1232 return -ENOMEM;
1233
1234 if (plat)
1235 ab8500->irq_base = plat->irq_base;
1236 else if (np)
1237 ret = of_property_read_u32(np, "stericsson,irq-base", &ab8500->irq_base);
1238
1239 if (!ab8500->irq_base) {
1240 dev_info(&pdev->dev, "couldn't find irq-base\n");
1241 ret = -EINVAL;
1242 goto out_free_ab8500;
1243 }
1244
1245 ab8500->dev = &pdev->dev;
1246
1247 resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1248 if (!resource) {
1249 ret = -ENODEV;
1250 goto out_free_ab8500;
1251 }
1252
1253 ab8500->irq = resource->start;
1254
1255 ab8500->read = ab8500_i2c_read;
1256 ab8500->write = ab8500_i2c_write;
1257 ab8500->write_masked = ab8500_i2c_write_masked;
1258
1259 mutex_init(&ab8500->lock);
1260 mutex_init(&ab8500->irq_lock);
1261 atomic_set(&ab8500->transfer_ongoing, 0);
1262
1263 platform_set_drvdata(pdev, ab8500);
1264
1265 if (platid)
1266 version = platid->driver_data;
1267 else if (np)
1268 version = (unsigned int)
1269 of_match_device(ab8500_match, &pdev->dev)->data;
1270
1271 if (version != AB8500_VERSION_UNDEFINED)
1272 ab8500->version = version;
1273 else {
1274 ret = get_register_interruptible(ab8500, AB8500_MISC,
1275 AB8500_IC_NAME_REG, &value);
1276 if (ret < 0)
1277 goto out_free_ab8500;
1278
1279 ab8500->version = value;
1280 }
1281
1282 ret = get_register_interruptible(ab8500, AB8500_MISC,
1283 AB8500_REV_REG, &value);
1284 if (ret < 0)
1285 goto out_free_ab8500;
1286
1287 ab8500->chip_id = value;
1288
1289 dev_info(ab8500->dev, "detected chip, %s rev. %1x.%1x\n",
1290 ab8500_version_str[ab8500->version],
1291 ab8500->chip_id >> 4,
1292 ab8500->chip_id & 0x0F);
1293
1294 /* Configure AB8500 or AB9540 IRQ */
1295 if (is_ab9540(ab8500) || is_ab8505(ab8500)) {
1296 ab8500->mask_size = AB9540_NUM_IRQ_REGS;
1297 ab8500->irq_reg_offset = ab9540_irq_regoffset;
1298 } else {
1299 ab8500->mask_size = AB8500_NUM_IRQ_REGS;
1300 ab8500->irq_reg_offset = ab8500_irq_regoffset;
1301 }
1302 ab8500->mask = kzalloc(ab8500->mask_size, GFP_KERNEL);
1303 if (!ab8500->mask)
1304 return -ENOMEM;
1305 ab8500->oldmask = kzalloc(ab8500->mask_size, GFP_KERNEL);
1306 if (!ab8500->oldmask) {
1307 ret = -ENOMEM;
1308 goto out_freemask;
1309 }
1310 /*
1311 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1312 * 0x01 Swoff bit programming
1313 * 0x02 Thermal protection activation
1314 * 0x04 Vbat lower then BattOk falling threshold
1315 * 0x08 Watchdog expired
1316 * 0x10 Non presence of 32kHz clock
1317 * 0x20 Battery level lower than power on reset threshold
1318 * 0x40 Power on key 1 pressed longer than 10 seconds
1319 * 0x80 DB8500 thermal shutdown
1320 */
1321
1322 ret = get_register_interruptible(ab8500, AB8500_RTC,
1323 AB8500_SWITCH_OFF_STATUS, &value);
1324 if (ret < 0)
1325 return ret;
1326 dev_info(ab8500->dev, "switch off status: %#x", value);
1327
1328 if (plat && plat->init)
1329 plat->init(ab8500);
1330
1331 /* Clear and mask all interrupts */
1332 for (i = 0; i < ab8500->mask_size; i++) {
1333 /*
1334 * Interrupt register 12 doesn't exist prior to AB8500 version
1335 * 2.0
1336 */
1337 if (ab8500->irq_reg_offset[i] == 11 &&
1338 is_ab8500_1p1_or_earlier(ab8500))
1339 continue;
1340
1341 get_register_interruptible(ab8500, AB8500_INTERRUPT,
1342 AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i],
1343 &value);
1344 set_register_interruptible(ab8500, AB8500_INTERRUPT,
1345 AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i], 0xff);
1346 }
1347
1348 ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
1349 if (ret)
1350 goto out_freeoldmask;
1351
1352 for (i = 0; i < ab8500->mask_size; i++)
1353 ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
1354
1355 if (ab8500->irq_base) {
1356 ret = ab8500_irq_init(ab8500);
1357 if (ret)
1358 goto out_freeoldmask;
1359
1360 /* Activate this feature only in ab9540 */
1361 /* till tests are done on ab8500 1p2 or later*/
1362 if (is_ab9540(ab8500))
1363 ret = request_threaded_irq(ab8500->irq, NULL,
1364 ab8500_hierarchical_irq,
1365 IRQF_ONESHOT | IRQF_NO_SUSPEND,
1366 "ab8500", ab8500);
1367 else
1368 ret = request_threaded_irq(ab8500->irq, NULL,
1369 ab8500_irq,
1370 IRQF_ONESHOT | IRQF_NO_SUSPEND,
1371 "ab8500", ab8500);
1372 if (ret)
1373 goto out_removeirq;
1374 }
1375
1376 if (!np) {
1377 ret = mfd_add_devices(ab8500->dev, 0, abx500_common_devs,
1378 ARRAY_SIZE(abx500_common_devs), NULL,
1379 ab8500->irq_base);
1380
1381 if (ret)
1382 goto out_freeirq;
1383
1384 if (is_ab9540(ab8500))
1385 ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
1386 ARRAY_SIZE(ab9540_devs), NULL,
1387 ab8500->irq_base);
1388 else
1389 ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
1390 ARRAY_SIZE(ab8500_devs), NULL,
1391 ab8500->irq_base);
1392 if (ret)
1393 goto out_freeirq;
1394
1395 if (is_ab9540(ab8500) || is_ab8505(ab8500))
1396 ret = mfd_add_devices(ab8500->dev, 0, ab9540_ab8505_devs,
1397 ARRAY_SIZE(ab9540_ab8505_devs), NULL,
1398 ab8500->irq_base);
1399 if (ret)
1400 goto out_freeirq;
1401 }
1402
1403 if (!no_bm) {
1404 /* Add battery management devices */
1405 ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
1406 ARRAY_SIZE(ab8500_bm_devs), NULL,
1407 ab8500->irq_base);
1408 if (ret)
1409 dev_err(ab8500->dev, "error adding bm devices\n");
1410 }
1411
1412 if (is_ab9540(ab8500))
1413 ret = sysfs_create_group(&ab8500->dev->kobj,
1414 &ab9540_attr_group);
1415 else
1416 ret = sysfs_create_group(&ab8500->dev->kobj,
1417 &ab8500_attr_group);
1418 if (ret)
1419 dev_err(ab8500->dev, "error creating sysfs entries\n");
1420 else
1421 return ret;
1422
1423out_freeirq:
1424 if (ab8500->irq_base)
1425 free_irq(ab8500->irq, ab8500);
1426out_removeirq:
1427 if (ab8500->irq_base)
1428 ab8500_irq_remove(ab8500);
1429out_freeoldmask:
1430 kfree(ab8500->oldmask);
1431out_freemask:
1432 kfree(ab8500->mask);
1433out_free_ab8500:
1434 kfree(ab8500);
1435
1436 return ret;
1437}
1438
1439static int __devexit ab8500_remove(struct platform_device *pdev)
1440{
1441 struct ab8500 *ab8500 = platform_get_drvdata(pdev);
1442
1443 if (is_ab9540(ab8500))
1444 sysfs_remove_group(&ab8500->dev->kobj, &ab9540_attr_group);
1445 else
1446 sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group);
1447 mfd_remove_devices(ab8500->dev);
1448 if (ab8500->irq_base) {
1449 free_irq(ab8500->irq, ab8500);
1450 ab8500_irq_remove(ab8500);
1451 }
1452 kfree(ab8500->oldmask);
1453 kfree(ab8500->mask);
1454 kfree(ab8500);
1455
1456 return 0;
1457}
1458
1459static const struct platform_device_id ab8500_id[] = {
1460 { "ab8500-core", AB8500_VERSION_AB8500 },
1461 { "ab8505-i2c", AB8500_VERSION_AB8505 },
1462 { "ab9540-i2c", AB8500_VERSION_AB9540 },
1463 { "ab8540-i2c", AB8500_VERSION_AB8540 },
1464 { }
1465};
1466
1467static struct platform_driver ab8500_core_driver = {
1468 .driver = {
1469 .name = "ab8500-core",
1470 .owner = THIS_MODULE,
1471 .of_match_table = ab8500_match,
1472 },
1473 .probe = ab8500_probe,
1474 .remove = __devexit_p(ab8500_remove),
1475 .id_table = ab8500_id,
1476};
1477
1478static int __init ab8500_core_init(void)
1479{
1480 return platform_driver_register(&ab8500_core_driver);
1481}
1482
1483static void __exit ab8500_core_exit(void)
1484{
1485 platform_driver_unregister(&ab8500_core_driver);
1486}
1487arch_initcall(ab8500_core_init);
1488module_exit(ab8500_core_exit);
1489
1490MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent");
1491MODULE_DESCRIPTION("AB8500 MFD core");
1492MODULE_LICENSE("GPL v2");