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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) ST-Ericsson SA 2010
4 *
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 < 0) ? ret : 0;
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 OF_MFD_CELL("ab8500-charger", NULL, &ab8500_bm_data,
614 sizeof(ab8500_bm_data), 0, "stericsson,ab8500-charger"),
615 OF_MFD_CELL("ab8500-btemp", NULL, &ab8500_bm_data,
616 sizeof(ab8500_bm_data), 0, "stericsson,ab8500-btemp"),
617 OF_MFD_CELL("ab8500-fg", NULL, &ab8500_bm_data,
618 sizeof(ab8500_bm_data), 0, "stericsson,ab8500-fg"),
619 OF_MFD_CELL("ab8500-chargalg", NULL, &ab8500_bm_data,
620 sizeof(ab8500_bm_data), 0, "stericsson,ab8500-chargalg"),
621};
622
623static const struct mfd_cell ab8500_devs[] = {
624#ifdef CONFIG_DEBUG_FS
625 OF_MFD_CELL("ab8500-debug",
626 NULL, NULL, 0, 0, "stericsson,ab8500-debug"),
627#endif
628 OF_MFD_CELL("ab8500-sysctrl",
629 NULL, NULL, 0, 0, "stericsson,ab8500-sysctrl"),
630 OF_MFD_CELL("ab8500-ext-regulator",
631 NULL, NULL, 0, 0, "stericsson,ab8500-ext-regulator"),
632 OF_MFD_CELL("ab8500-regulator",
633 NULL, NULL, 0, 0, "stericsson,ab8500-regulator"),
634 OF_MFD_CELL("ab8500-clk",
635 NULL, NULL, 0, 0, "stericsson,ab8500-clk"),
636 OF_MFD_CELL("ab8500-gpadc",
637 NULL, NULL, 0, 0, "stericsson,ab8500-gpadc"),
638 OF_MFD_CELL("ab8500-rtc",
639 NULL, NULL, 0, 0, "stericsson,ab8500-rtc"),
640 OF_MFD_CELL("ab8500-acc-det",
641 NULL, NULL, 0, 0, "stericsson,ab8500-acc-det"),
642 OF_MFD_CELL("ab8500-poweron-key",
643 NULL, NULL, 0, 0, "stericsson,ab8500-poweron-key"),
644 OF_MFD_CELL("ab8500-pwm",
645 NULL, NULL, 0, 1, "stericsson,ab8500-pwm"),
646 OF_MFD_CELL("ab8500-pwm",
647 NULL, NULL, 0, 2, "stericsson,ab8500-pwm"),
648 OF_MFD_CELL("ab8500-pwm",
649 NULL, NULL, 0, 3, "stericsson,ab8500-pwm"),
650 OF_MFD_CELL("ab8500-denc",
651 NULL, NULL, 0, 0, "stericsson,ab8500-denc"),
652 OF_MFD_CELL("pinctrl-ab8500",
653 NULL, NULL, 0, 0, "stericsson,ab8500-gpio"),
654 OF_MFD_CELL("abx500-temp",
655 NULL, NULL, 0, 0, "stericsson,abx500-temp"),
656 OF_MFD_CELL("ab8500-usb",
657 NULL, NULL, 0, 0, "stericsson,ab8500-usb"),
658 OF_MFD_CELL("ab8500-codec",
659 NULL, NULL, 0, 0, "stericsson,ab8500-codec"),
660};
661
662static const struct mfd_cell ab9540_devs[] = {
663#ifdef CONFIG_DEBUG_FS
664 {
665 .name = "ab8500-debug",
666 },
667#endif
668 {
669 .name = "ab8500-sysctrl",
670 },
671 {
672 .name = "ab8500-ext-regulator",
673 },
674 {
675 .name = "ab8500-regulator",
676 },
677 {
678 .name = "abx500-clk",
679 .of_compatible = "stericsson,abx500-clk",
680 },
681 {
682 .name = "ab8500-gpadc",
683 .of_compatible = "stericsson,ab8500-gpadc",
684 },
685 {
686 .name = "ab8500-rtc",
687 },
688 {
689 .name = "ab8500-acc-det",
690 },
691 {
692 .name = "ab8500-poweron-key",
693 },
694 {
695 .name = "ab8500-pwm",
696 .id = 1,
697 },
698 {
699 .name = "abx500-temp",
700 },
701 {
702 .name = "pinctrl-ab9540",
703 .of_compatible = "stericsson,ab9540-gpio",
704 },
705 {
706 .name = "ab9540-usb",
707 },
708 {
709 .name = "ab9540-codec",
710 },
711 {
712 .name = "ab-iddet",
713 },
714};
715
716/* Device list for ab8505 */
717static const struct mfd_cell ab8505_devs[] = {
718#ifdef CONFIG_DEBUG_FS
719 {
720 .name = "ab8500-debug",
721 .of_compatible = "stericsson,ab8500-debug",
722 },
723#endif
724 {
725 .name = "ab8500-sysctrl",
726 .of_compatible = "stericsson,ab8500-sysctrl",
727 },
728 {
729 .name = "ab8500-regulator",
730 .of_compatible = "stericsson,ab8505-regulator",
731 },
732 {
733 .name = "abx500-clk",
734 .of_compatible = "stericsson,ab8500-clk",
735 },
736 {
737 .name = "ab8500-gpadc",
738 .of_compatible = "stericsson,ab8500-gpadc",
739 },
740 {
741 .name = "ab8500-rtc",
742 .of_compatible = "stericsson,ab8500-rtc",
743 },
744 {
745 .name = "ab8500-acc-det",
746 .of_compatible = "stericsson,ab8500-acc-det",
747 },
748 {
749 .name = "ab8500-poweron-key",
750 .of_compatible = "stericsson,ab8500-poweron-key",
751 },
752 {
753 .name = "ab8500-pwm",
754 .of_compatible = "stericsson,ab8500-pwm",
755 .id = 1,
756 },
757 {
758 .name = "pinctrl-ab8505",
759 .of_compatible = "stericsson,ab8505-gpio",
760 },
761 {
762 .name = "ab8500-usb",
763 .of_compatible = "stericsson,ab8500-usb",
764 },
765 {
766 .name = "ab8500-codec",
767 .of_compatible = "stericsson,ab8500-codec",
768 },
769 {
770 .name = "ab-iddet",
771 },
772};
773
774static const struct mfd_cell ab8540_devs[] = {
775#ifdef CONFIG_DEBUG_FS
776 {
777 .name = "ab8500-debug",
778 },
779#endif
780 {
781 .name = "ab8500-sysctrl",
782 },
783 {
784 .name = "ab8500-ext-regulator",
785 },
786 {
787 .name = "ab8500-regulator",
788 },
789 {
790 .name = "abx500-clk",
791 .of_compatible = "stericsson,abx500-clk",
792 },
793 {
794 .name = "ab8500-gpadc",
795 .of_compatible = "stericsson,ab8500-gpadc",
796 },
797 {
798 .name = "ab8500-acc-det",
799 },
800 {
801 .name = "ab8500-poweron-key",
802 },
803 {
804 .name = "ab8500-pwm",
805 .id = 1,
806 },
807 {
808 .name = "abx500-temp",
809 },
810 {
811 .name = "pinctrl-ab8540",
812 },
813 {
814 .name = "ab8540-usb",
815 },
816 {
817 .name = "ab8540-codec",
818 },
819 {
820 .name = "ab-iddet",
821 },
822};
823
824static const struct mfd_cell ab8540_cut1_devs[] = {
825 {
826 .name = "ab8500-rtc",
827 .of_compatible = "stericsson,ab8500-rtc",
828 },
829};
830
831static const struct mfd_cell ab8540_cut2_devs[] = {
832 {
833 .name = "ab8540-rtc",
834 .of_compatible = "stericsson,ab8540-rtc",
835 },
836};
837
838static ssize_t show_chip_id(struct device *dev,
839 struct device_attribute *attr, char *buf)
840{
841 struct ab8500 *ab8500;
842
843 ab8500 = dev_get_drvdata(dev);
844
845 return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
846}
847
848/*
849 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
850 * 0x01 Swoff bit programming
851 * 0x02 Thermal protection activation
852 * 0x04 Vbat lower then BattOk falling threshold
853 * 0x08 Watchdog expired
854 * 0x10 Non presence of 32kHz clock
855 * 0x20 Battery level lower than power on reset threshold
856 * 0x40 Power on key 1 pressed longer than 10 seconds
857 * 0x80 DB8500 thermal shutdown
858 */
859static ssize_t show_switch_off_status(struct device *dev,
860 struct device_attribute *attr, char *buf)
861{
862 int ret;
863 u8 value;
864 struct ab8500 *ab8500;
865
866 ab8500 = dev_get_drvdata(dev);
867 ret = get_register_interruptible(ab8500, AB8500_RTC,
868 AB8500_SWITCH_OFF_STATUS, &value);
869 if (ret < 0)
870 return ret;
871 return sprintf(buf, "%#x\n", value);
872}
873
874/* use mask and set to override the register turn_on_stat value */
875void ab8500_override_turn_on_stat(u8 mask, u8 set)
876{
877 spin_lock(&on_stat_lock);
878 turn_on_stat_mask = mask;
879 turn_on_stat_set = set;
880 spin_unlock(&on_stat_lock);
881}
882
883/*
884 * ab8500 has turned on due to (TURN_ON_STATUS):
885 * 0x01 PORnVbat
886 * 0x02 PonKey1dbF
887 * 0x04 PonKey2dbF
888 * 0x08 RTCAlarm
889 * 0x10 MainChDet
890 * 0x20 VbusDet
891 * 0x40 UsbIDDetect
892 * 0x80 Reserved
893 */
894static ssize_t show_turn_on_status(struct device *dev,
895 struct device_attribute *attr, char *buf)
896{
897 int ret;
898 u8 value;
899 struct ab8500 *ab8500;
900
901 ab8500 = dev_get_drvdata(dev);
902 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
903 AB8500_TURN_ON_STATUS, &value);
904 if (ret < 0)
905 return ret;
906
907 /*
908 * In L9540, turn_on_status register is not updated correctly if
909 * the device is rebooted with AC/USB charger connected. Due to
910 * this, the device boots android instead of entering into charge
911 * only mode. Read the AC/USB status register to detect the charger
912 * presence and update the turn on status manually.
913 */
914 if (is_ab9540(ab8500)) {
915 spin_lock(&on_stat_lock);
916 value = (value & turn_on_stat_mask) | turn_on_stat_set;
917 spin_unlock(&on_stat_lock);
918 }
919
920 return sprintf(buf, "%#x\n", value);
921}
922
923static ssize_t show_turn_on_status_2(struct device *dev,
924 struct device_attribute *attr, char *buf)
925{
926 int ret;
927 u8 value;
928 struct ab8500 *ab8500;
929
930 ab8500 = dev_get_drvdata(dev);
931 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
932 AB8505_TURN_ON_STATUS_2, &value);
933 if (ret < 0)
934 return ret;
935 return sprintf(buf, "%#x\n", (value & 0x1));
936}
937
938static ssize_t show_ab9540_dbbrstn(struct device *dev,
939 struct device_attribute *attr, char *buf)
940{
941 struct ab8500 *ab8500;
942 int ret;
943 u8 value;
944
945 ab8500 = dev_get_drvdata(dev);
946
947 ret = get_register_interruptible(ab8500, AB8500_REGU_CTRL2,
948 AB9540_MODEM_CTRL2_REG, &value);
949 if (ret < 0)
950 return ret;
951
952 return sprintf(buf, "%d\n",
953 (value & AB9540_MODEM_CTRL2_SWDBBRSTN_BIT) ? 1 : 0);
954}
955
956static ssize_t store_ab9540_dbbrstn(struct device *dev,
957 struct device_attribute *attr, const char *buf, size_t count)
958{
959 struct ab8500 *ab8500;
960 int ret = count;
961 int err;
962 u8 bitvalues;
963
964 ab8500 = dev_get_drvdata(dev);
965
966 if (count > 0) {
967 switch (buf[0]) {
968 case '0':
969 bitvalues = 0;
970 break;
971 case '1':
972 bitvalues = AB9540_MODEM_CTRL2_SWDBBRSTN_BIT;
973 break;
974 default:
975 goto exit;
976 }
977
978 err = mask_and_set_register_interruptible(ab8500,
979 AB8500_REGU_CTRL2, AB9540_MODEM_CTRL2_REG,
980 AB9540_MODEM_CTRL2_SWDBBRSTN_BIT, bitvalues);
981 if (err)
982 dev_info(ab8500->dev,
983 "Failed to set DBBRSTN %c, err %#x\n",
984 buf[0], err);
985 }
986
987exit:
988 return ret;
989}
990
991static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);
992static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);
993static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL);
994static DEVICE_ATTR(turn_on_status_2, S_IRUGO, show_turn_on_status_2, NULL);
995static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,
996 show_ab9540_dbbrstn, store_ab9540_dbbrstn);
997
998static struct attribute *ab8500_sysfs_entries[] = {
999 &dev_attr_chip_id.attr,
1000 &dev_attr_switch_off_status.attr,
1001 &dev_attr_turn_on_status.attr,
1002 NULL,
1003};
1004
1005static struct attribute *ab8505_sysfs_entries[] = {
1006 &dev_attr_turn_on_status_2.attr,
1007 NULL,
1008};
1009
1010static struct attribute *ab9540_sysfs_entries[] = {
1011 &dev_attr_chip_id.attr,
1012 &dev_attr_switch_off_status.attr,
1013 &dev_attr_turn_on_status.attr,
1014 &dev_attr_dbbrstn.attr,
1015 NULL,
1016};
1017
1018static const struct attribute_group ab8500_attr_group = {
1019 .attrs = ab8500_sysfs_entries,
1020};
1021
1022static const struct attribute_group ab8505_attr_group = {
1023 .attrs = ab8505_sysfs_entries,
1024};
1025
1026static const struct attribute_group ab9540_attr_group = {
1027 .attrs = ab9540_sysfs_entries,
1028};
1029
1030static int ab8500_probe(struct platform_device *pdev)
1031{
1032 static const char * const switch_off_status[] = {
1033 "Swoff bit programming",
1034 "Thermal protection activation",
1035 "Vbat lower then BattOk falling threshold",
1036 "Watchdog expired",
1037 "Non presence of 32kHz clock",
1038 "Battery level lower than power on reset threshold",
1039 "Power on key 1 pressed longer than 10 seconds",
1040 "DB8500 thermal shutdown"};
1041 static const char * const turn_on_status[] = {
1042 "Battery rising (Vbat)",
1043 "Power On Key 1 dbF",
1044 "Power On Key 2 dbF",
1045 "RTC Alarm",
1046 "Main Charger Detect",
1047 "Vbus Detect (USB)",
1048 "USB ID Detect",
1049 "UART Factory Mode Detect"};
1050 const struct platform_device_id *platid = platform_get_device_id(pdev);
1051 enum ab8500_version version = AB8500_VERSION_UNDEFINED;
1052 struct device_node *np = pdev->dev.of_node;
1053 struct ab8500 *ab8500;
1054 struct resource *resource;
1055 int ret;
1056 int i;
1057 u8 value;
1058
1059 ab8500 = devm_kzalloc(&pdev->dev, sizeof(*ab8500), GFP_KERNEL);
1060 if (!ab8500)
1061 return -ENOMEM;
1062
1063 ab8500->dev = &pdev->dev;
1064
1065 resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1066 if (!resource) {
1067 dev_err(&pdev->dev, "no IRQ resource\n");
1068 return -ENODEV;
1069 }
1070
1071 ab8500->irq = resource->start;
1072
1073 ab8500->read = ab8500_prcmu_read;
1074 ab8500->write = ab8500_prcmu_write;
1075 ab8500->write_masked = ab8500_prcmu_write_masked;
1076
1077 mutex_init(&ab8500->lock);
1078 mutex_init(&ab8500->irq_lock);
1079 atomic_set(&ab8500->transfer_ongoing, 0);
1080
1081 platform_set_drvdata(pdev, ab8500);
1082
1083 if (platid)
1084 version = platid->driver_data;
1085
1086 if (version != AB8500_VERSION_UNDEFINED)
1087 ab8500->version = version;
1088 else {
1089 ret = get_register_interruptible(ab8500, AB8500_MISC,
1090 AB8500_IC_NAME_REG, &value);
1091 if (ret < 0) {
1092 dev_err(&pdev->dev, "could not probe HW\n");
1093 return ret;
1094 }
1095
1096 ab8500->version = value;
1097 }
1098
1099 ret = get_register_interruptible(ab8500, AB8500_MISC,
1100 AB8500_REV_REG, &value);
1101 if (ret < 0)
1102 return ret;
1103
1104 ab8500->chip_id = value;
1105
1106 dev_info(ab8500->dev, "detected chip, %s rev. %1x.%1x\n",
1107 ab8500_version_str[ab8500->version],
1108 ab8500->chip_id >> 4,
1109 ab8500->chip_id & 0x0F);
1110
1111 /* Configure AB8540 */
1112 if (is_ab8540(ab8500)) {
1113 ab8500->mask_size = AB8540_NUM_IRQ_REGS;
1114 ab8500->irq_reg_offset = ab8540_irq_regoffset;
1115 ab8500->it_latchhier_num = AB8540_IT_LATCHHIER_NUM;
1116 } /* Configure AB8500 or AB9540 IRQ */
1117 else if (is_ab9540(ab8500) || is_ab8505(ab8500)) {
1118 ab8500->mask_size = AB9540_NUM_IRQ_REGS;
1119 ab8500->irq_reg_offset = ab9540_irq_regoffset;
1120 ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
1121 } else {
1122 ab8500->mask_size = AB8500_NUM_IRQ_REGS;
1123 ab8500->irq_reg_offset = ab8500_irq_regoffset;
1124 ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
1125 }
1126 ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size,
1127 GFP_KERNEL);
1128 if (!ab8500->mask)
1129 return -ENOMEM;
1130 ab8500->oldmask = devm_kzalloc(&pdev->dev, ab8500->mask_size,
1131 GFP_KERNEL);
1132 if (!ab8500->oldmask)
1133 return -ENOMEM;
1134
1135 /*
1136 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1137 * 0x01 Swoff bit programming
1138 * 0x02 Thermal protection activation
1139 * 0x04 Vbat lower then BattOk falling threshold
1140 * 0x08 Watchdog expired
1141 * 0x10 Non presence of 32kHz clock
1142 * 0x20 Battery level lower than power on reset threshold
1143 * 0x40 Power on key 1 pressed longer than 10 seconds
1144 * 0x80 DB8500 thermal shutdown
1145 */
1146
1147 ret = get_register_interruptible(ab8500, AB8500_RTC,
1148 AB8500_SWITCH_OFF_STATUS, &value);
1149 if (ret < 0)
1150 return ret;
1151 dev_info(ab8500->dev, "switch off cause(s) (%#x): ", value);
1152
1153 if (value) {
1154 for (i = 0; i < ARRAY_SIZE(switch_off_status); i++) {
1155 if (value & 1)
1156 pr_cont(" \"%s\"", switch_off_status[i]);
1157 value = value >> 1;
1158
1159 }
1160 pr_cont("\n");
1161 } else {
1162 pr_cont(" None\n");
1163 }
1164 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1165 AB8500_TURN_ON_STATUS, &value);
1166 if (ret < 0)
1167 return ret;
1168 dev_info(ab8500->dev, "turn on reason(s) (%#x): ", value);
1169
1170 if (value) {
1171 for (i = 0; i < ARRAY_SIZE(turn_on_status); i++) {
1172 if (value & 1)
1173 pr_cont("\"%s\" ", turn_on_status[i]);
1174 value = value >> 1;
1175 }
1176 pr_cont("\n");
1177 } else {
1178 pr_cont("None\n");
1179 }
1180
1181 if (is_ab9540(ab8500)) {
1182 ret = get_register_interruptible(ab8500, AB8500_CHARGER,
1183 AB8500_CH_USBCH_STAT1_REG, &value);
1184 if (ret < 0)
1185 return ret;
1186 if ((value & VBUS_DET_DBNC1) && (value & VBUS_DET_DBNC100))
1187 ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON,
1188 AB8500_VBUS_DET);
1189 }
1190
1191 /* Clear and mask all interrupts */
1192 for (i = 0; i < ab8500->mask_size; i++) {
1193 /*
1194 * Interrupt register 12 doesn't exist prior to AB8500 version
1195 * 2.0
1196 */
1197 if (ab8500->irq_reg_offset[i] == 11 &&
1198 is_ab8500_1p1_or_earlier(ab8500))
1199 continue;
1200
1201 if (ab8500->irq_reg_offset[i] < 0)
1202 continue;
1203
1204 get_register_interruptible(ab8500, AB8500_INTERRUPT,
1205 AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i],
1206 &value);
1207 set_register_interruptible(ab8500, AB8500_INTERRUPT,
1208 AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i], 0xff);
1209 }
1210
1211 ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
1212 if (ret)
1213 return ret;
1214
1215 for (i = 0; i < ab8500->mask_size; i++)
1216 ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
1217
1218 ret = ab8500_irq_init(ab8500, np);
1219 if (ret)
1220 return ret;
1221
1222 ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL,
1223 ab8500_hierarchical_irq,
1224 IRQF_ONESHOT | IRQF_NO_SUSPEND,
1225 "ab8500", ab8500);
1226 if (ret)
1227 return ret;
1228
1229 if (is_ab9540(ab8500))
1230 ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
1231 ARRAY_SIZE(ab9540_devs), NULL,
1232 0, ab8500->domain);
1233 else if (is_ab8540(ab8500)) {
1234 ret = mfd_add_devices(ab8500->dev, 0, ab8540_devs,
1235 ARRAY_SIZE(ab8540_devs), NULL,
1236 0, ab8500->domain);
1237 if (ret)
1238 return ret;
1239
1240 if (is_ab8540_1p2_or_earlier(ab8500))
1241 ret = mfd_add_devices(ab8500->dev, 0, ab8540_cut1_devs,
1242 ARRAY_SIZE(ab8540_cut1_devs), NULL,
1243 0, ab8500->domain);
1244 else /* ab8540 >= cut2 */
1245 ret = mfd_add_devices(ab8500->dev, 0, ab8540_cut2_devs,
1246 ARRAY_SIZE(ab8540_cut2_devs), NULL,
1247 0, ab8500->domain);
1248 } else if (is_ab8505(ab8500))
1249 ret = mfd_add_devices(ab8500->dev, 0, ab8505_devs,
1250 ARRAY_SIZE(ab8505_devs), NULL,
1251 0, ab8500->domain);
1252 else
1253 ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
1254 ARRAY_SIZE(ab8500_devs), NULL,
1255 0, ab8500->domain);
1256 if (ret)
1257 return ret;
1258
1259 if (!no_bm) {
1260 /* Add battery management devices */
1261 ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
1262 ARRAY_SIZE(ab8500_bm_devs), NULL,
1263 0, ab8500->domain);
1264 if (ret)
1265 dev_err(ab8500->dev, "error adding bm devices\n");
1266 }
1267
1268 if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1269 ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))
1270 ret = sysfs_create_group(&ab8500->dev->kobj,
1271 &ab9540_attr_group);
1272 else
1273 ret = sysfs_create_group(&ab8500->dev->kobj,
1274 &ab8500_attr_group);
1275
1276 if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1277 ab8500->chip_id >= AB8500_CUT2P0)
1278 ret = sysfs_create_group(&ab8500->dev->kobj,
1279 &ab8505_attr_group);
1280
1281 if (ret)
1282 dev_err(ab8500->dev, "error creating sysfs entries\n");
1283
1284 return ret;
1285}
1286
1287static const struct platform_device_id ab8500_id[] = {
1288 { "ab8500-core", AB8500_VERSION_AB8500 },
1289 { "ab8505-core", AB8500_VERSION_AB8505 },
1290 { "ab9540-i2c", AB8500_VERSION_AB9540 },
1291 { "ab8540-i2c", AB8500_VERSION_AB8540 },
1292 { }
1293};
1294
1295static struct platform_driver ab8500_core_driver = {
1296 .driver = {
1297 .name = "ab8500-core",
1298 .suppress_bind_attrs = true,
1299 },
1300 .probe = ab8500_probe,
1301 .id_table = ab8500_id,
1302};
1303
1304static int __init ab8500_core_init(void)
1305{
1306 return platform_driver_register(&ab8500_core_driver);
1307}
1308core_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/irqdomain.h>
15#include <linux/delay.h>
16#include <linux/interrupt.h>
17#include <linux/module.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 */
126module_param(no_bm, bool, S_IRUGO);
127
128#define AB9540_MODEM_CTRL2_REG 0x23
129#define AB9540_MODEM_CTRL2_SWDBBRSTN_BIT BIT(2)
130
131/*
132 * Map interrupt numbers to the LATCH and MASK register offsets, Interrupt
133 * numbers are indexed into this array with (num / 8). The interupts are
134 * defined in linux/mfd/ab8500.h
135 *
136 * This is one off from the register names, i.e. AB8500_IT_MASK1_REG is at
137 * offset 0.
138 */
139/* AB8500 support */
140static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = {
141 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21,
142};
143
144/* AB9540 / AB8505 support */
145static const int ab9540_irq_regoffset[AB9540_NUM_IRQ_REGS] = {
146 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22, 23
147};
148
149/* AB8540 support */
150static const int ab8540_irq_regoffset[AB8540_NUM_IRQ_REGS] = {
151 0, 1, 2, 3, 4, -1, -1, -1, -1, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22, 23,
152 25, 26, 27, 28, 29, 30, 31,
153};
154
155static const char ab8500_version_str[][7] = {
156 [AB8500_VERSION_AB8500] = "AB8500",
157 [AB8500_VERSION_AB8505] = "AB8505",
158 [AB8500_VERSION_AB9540] = "AB9540",
159 [AB8500_VERSION_AB8540] = "AB8540",
160};
161
162static int ab8500_prcmu_write(struct ab8500 *ab8500, u16 addr, u8 data)
163{
164 int ret;
165
166 ret = prcmu_abb_write((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
167 if (ret < 0)
168 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
169 return ret;
170}
171
172static int ab8500_prcmu_write_masked(struct ab8500 *ab8500, u16 addr, u8 mask,
173 u8 data)
174{
175 int ret;
176
177 ret = prcmu_abb_write_masked((u8)(addr >> 8), (u8)(addr & 0xFF), &data,
178 &mask, 1);
179 if (ret < 0)
180 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
181 return ret;
182}
183
184static int ab8500_prcmu_read(struct ab8500 *ab8500, u16 addr)
185{
186 int ret;
187 u8 data;
188
189 ret = prcmu_abb_read((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
190 if (ret < 0) {
191 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
192 return ret;
193 }
194 return (int)data;
195}
196
197static int ab8500_get_chip_id(struct device *dev)
198{
199 struct ab8500 *ab8500;
200
201 if (!dev)
202 return -EINVAL;
203 ab8500 = dev_get_drvdata(dev->parent);
204 return ab8500 ? (int)ab8500->chip_id : -EINVAL;
205}
206
207static int set_register_interruptible(struct ab8500 *ab8500, u8 bank,
208 u8 reg, u8 data)
209{
210 int ret;
211 /*
212 * Put the u8 bank and u8 register together into a an u16.
213 * The bank on higher 8 bits and register in lower 8 bits.
214 * */
215 u16 addr = ((u16)bank) << 8 | reg;
216
217 dev_vdbg(ab8500->dev, "wr: addr %#x <= %#x\n", addr, data);
218
219 mutex_lock(&ab8500->lock);
220
221 ret = ab8500->write(ab8500, addr, data);
222 if (ret < 0)
223 dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
224 addr, ret);
225 mutex_unlock(&ab8500->lock);
226
227 return ret;
228}
229
230static int ab8500_set_register(struct device *dev, u8 bank,
231 u8 reg, u8 value)
232{
233 int ret;
234 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
235
236 atomic_inc(&ab8500->transfer_ongoing);
237 ret = set_register_interruptible(ab8500, bank, reg, value);
238 atomic_dec(&ab8500->transfer_ongoing);
239 return ret;
240}
241
242static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
243 u8 reg, u8 *value)
244{
245 int ret;
246 /* put the u8 bank and u8 reg together into a an u16.
247 * bank on higher 8 bits and reg in lower */
248 u16 addr = ((u16)bank) << 8 | reg;
249
250 mutex_lock(&ab8500->lock);
251
252 ret = ab8500->read(ab8500, addr);
253 if (ret < 0)
254 dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
255 addr, ret);
256 else
257 *value = ret;
258
259 mutex_unlock(&ab8500->lock);
260 dev_vdbg(ab8500->dev, "rd: addr %#x => data %#x\n", addr, ret);
261
262 return ret;
263}
264
265static int ab8500_get_register(struct device *dev, u8 bank,
266 u8 reg, u8 *value)
267{
268 int ret;
269 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
270
271 atomic_inc(&ab8500->transfer_ongoing);
272 ret = get_register_interruptible(ab8500, bank, reg, value);
273 atomic_dec(&ab8500->transfer_ongoing);
274 return ret;
275}
276
277static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank,
278 u8 reg, u8 bitmask, u8 bitvalues)
279{
280 int ret;
281 /* put the u8 bank and u8 reg together into a an u16.
282 * bank on higher 8 bits and reg in lower */
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 && offset <= AB9540_INT_GPIO54R)
419 ab8500->mask[index + 1] &= ~mask;
420 else if (offset == AB8540_INT_GPIO43R || offset == AB8540_INT_GPIO44R)
421 /* Here the falling IRQ is one bit lower */
422 ab8500->mask[index] &= ~(mask << 1);
423 else
424 ab8500->mask[index] &= ~mask;
425 } else {
426 /* Satisfies the case where type is not set. */
427 ab8500->mask[index] &= ~mask;
428 }
429}
430
431static int ab8500_irq_set_type(struct irq_data *data, unsigned int type)
432{
433 return 0;
434}
435
436static struct irq_chip ab8500_irq_chip = {
437 .name = "ab8500",
438 .irq_bus_lock = ab8500_irq_lock,
439 .irq_bus_sync_unlock = ab8500_irq_sync_unlock,
440 .irq_mask = ab8500_irq_mask,
441 .irq_disable = ab8500_irq_mask,
442 .irq_unmask = ab8500_irq_unmask,
443 .irq_set_type = ab8500_irq_set_type,
444};
445
446static void update_latch_offset(u8 *offset, int i)
447{
448 /* Fix inconsistent ITFromLatch25 bit mapping... */
449 if (unlikely(*offset == 17))
450 *offset = 24;
451 /* Fix inconsistent ab8540 bit mapping... */
452 if (unlikely(*offset == 16))
453 *offset = 25;
454 if ((i==3) && (*offset >= 24))
455 *offset += 2;
456}
457
458static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
459 int latch_offset, u8 latch_val)
460{
461 int int_bit, line, i;
462
463 for (i = 0; i < ab8500->mask_size; i++)
464 if (ab8500->irq_reg_offset[i] == latch_offset)
465 break;
466
467 if (i >= ab8500->mask_size) {
468 dev_err(ab8500->dev, "Register offset 0x%2x not declared\n",
469 latch_offset);
470 return -ENXIO;
471 }
472
473 /* ignore masked out interrupts */
474 latch_val &= ~ab8500->mask[i];
475
476 while (latch_val) {
477 int_bit = __ffs(latch_val);
478 line = (i << 3) + int_bit;
479 latch_val &= ~(1 << int_bit);
480
481 /*
482 * This handles the falling edge hwirqs from the GPIO
483 * lines. Route them back to the line registered for the
484 * rising IRQ, as this is merely a flag for the same IRQ
485 * in linux terms.
486 */
487 if (line >= AB8500_INT_GPIO6F && line <= AB8500_INT_GPIO41F)
488 line -= 16;
489 if (line >= AB9540_INT_GPIO50F && line <= AB9540_INT_GPIO54F)
490 line -= 8;
491 if (line == AB8540_INT_GPIO43F || line == AB8540_INT_GPIO44F)
492 line += 1;
493
494 handle_nested_irq(irq_create_mapping(ab8500->domain, line));
495 }
496
497 return 0;
498}
499
500static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500,
501 int hier_offset, u8 hier_val)
502{
503 int latch_bit, status;
504 u8 latch_offset, latch_val;
505
506 do {
507 latch_bit = __ffs(hier_val);
508 latch_offset = (hier_offset << 3) + latch_bit;
509
510 update_latch_offset(&latch_offset, hier_offset);
511
512 status = get_register_interruptible(ab8500,
513 AB8500_INTERRUPT,
514 AB8500_IT_LATCH1_REG + latch_offset,
515 &latch_val);
516 if (status < 0 || latch_val == 0)
517 goto discard;
518
519 status = ab8500_handle_hierarchical_line(ab8500,
520 latch_offset, latch_val);
521 if (status < 0)
522 return status;
523discard:
524 hier_val &= ~(1 << latch_bit);
525 } while (hier_val);
526
527 return 0;
528}
529
530static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev)
531{
532 struct ab8500 *ab8500 = dev;
533 u8 i;
534
535 dev_vdbg(ab8500->dev, "interrupt\n");
536
537 /* Hierarchical interrupt version */
538 for (i = 0; i < (ab8500->it_latchhier_num); i++) {
539 int status;
540 u8 hier_val;
541
542 status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
543 AB8500_IT_LATCHHIER1_REG + i, &hier_val);
544 if (status < 0 || hier_val == 0)
545 continue;
546
547 status = ab8500_handle_hierarchical_latch(ab8500, i, hier_val);
548 if (status < 0)
549 break;
550 }
551 return IRQ_HANDLED;
552}
553
554static int ab8500_irq_map(struct irq_domain *d, unsigned int virq,
555 irq_hw_number_t hwirq)
556{
557 struct ab8500 *ab8500 = d->host_data;
558
559 if (!ab8500)
560 return -EINVAL;
561
562 irq_set_chip_data(virq, ab8500);
563 irq_set_chip_and_handler(virq, &ab8500_irq_chip,
564 handle_simple_irq);
565 irq_set_nested_thread(virq, 1);
566#ifdef CONFIG_ARM
567 set_irq_flags(virq, IRQF_VALID);
568#else
569 irq_set_noprobe(virq);
570#endif
571
572 return 0;
573}
574
575static struct irq_domain_ops ab8500_irq_ops = {
576 .map = ab8500_irq_map,
577 .xlate = irq_domain_xlate_twocell,
578};
579
580static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np)
581{
582 int num_irqs;
583
584 if (is_ab8540(ab8500))
585 num_irqs = AB8540_NR_IRQS;
586 else if (is_ab9540(ab8500))
587 num_irqs = AB9540_NR_IRQS;
588 else if (is_ab8505(ab8500))
589 num_irqs = AB8505_NR_IRQS;
590 else
591 num_irqs = AB8500_NR_IRQS;
592
593 /* If ->irq_base is zero this will give a linear mapping */
594 ab8500->domain = irq_domain_add_simple(NULL,
595 num_irqs, 0,
596 &ab8500_irq_ops, ab8500);
597
598 if (!ab8500->domain) {
599 dev_err(ab8500->dev, "Failed to create irqdomain\n");
600 return -ENOSYS;
601 }
602
603 return 0;
604}
605
606int ab8500_suspend(struct ab8500 *ab8500)
607{
608 if (atomic_read(&ab8500->transfer_ongoing))
609 return -EINVAL;
610 else
611 return 0;
612}
613
614static struct resource ab8500_gpadc_resources[] = {
615 {
616 .name = "HW_CONV_END",
617 .start = AB8500_INT_GP_HW_ADC_CONV_END,
618 .end = AB8500_INT_GP_HW_ADC_CONV_END,
619 .flags = IORESOURCE_IRQ,
620 },
621 {
622 .name = "SW_CONV_END",
623 .start = AB8500_INT_GP_SW_ADC_CONV_END,
624 .end = AB8500_INT_GP_SW_ADC_CONV_END,
625 .flags = IORESOURCE_IRQ,
626 },
627};
628
629static struct resource ab8505_gpadc_resources[] = {
630 {
631 .name = "SW_CONV_END",
632 .start = AB8500_INT_GP_SW_ADC_CONV_END,
633 .end = AB8500_INT_GP_SW_ADC_CONV_END,
634 .flags = IORESOURCE_IRQ,
635 },
636};
637
638static struct resource ab8500_rtc_resources[] = {
639 {
640 .name = "60S",
641 .start = AB8500_INT_RTC_60S,
642 .end = AB8500_INT_RTC_60S,
643 .flags = IORESOURCE_IRQ,
644 },
645 {
646 .name = "ALARM",
647 .start = AB8500_INT_RTC_ALARM,
648 .end = AB8500_INT_RTC_ALARM,
649 .flags = IORESOURCE_IRQ,
650 },
651};
652
653static struct resource ab8540_rtc_resources[] = {
654 {
655 .name = "1S",
656 .start = AB8540_INT_RTC_1S,
657 .end = AB8540_INT_RTC_1S,
658 .flags = IORESOURCE_IRQ,
659 },
660 {
661 .name = "ALARM",
662 .start = AB8500_INT_RTC_ALARM,
663 .end = AB8500_INT_RTC_ALARM,
664 .flags = IORESOURCE_IRQ,
665 },
666};
667
668static struct resource ab8500_poweronkey_db_resources[] = {
669 {
670 .name = "ONKEY_DBF",
671 .start = AB8500_INT_PON_KEY1DB_F,
672 .end = AB8500_INT_PON_KEY1DB_F,
673 .flags = IORESOURCE_IRQ,
674 },
675 {
676 .name = "ONKEY_DBR",
677 .start = AB8500_INT_PON_KEY1DB_R,
678 .end = AB8500_INT_PON_KEY1DB_R,
679 .flags = IORESOURCE_IRQ,
680 },
681};
682
683static struct resource ab8500_av_acc_detect_resources[] = {
684 {
685 .name = "ACC_DETECT_1DB_F",
686 .start = AB8500_INT_ACC_DETECT_1DB_F,
687 .end = AB8500_INT_ACC_DETECT_1DB_F,
688 .flags = IORESOURCE_IRQ,
689 },
690 {
691 .name = "ACC_DETECT_1DB_R",
692 .start = AB8500_INT_ACC_DETECT_1DB_R,
693 .end = AB8500_INT_ACC_DETECT_1DB_R,
694 .flags = IORESOURCE_IRQ,
695 },
696 {
697 .name = "ACC_DETECT_21DB_F",
698 .start = AB8500_INT_ACC_DETECT_21DB_F,
699 .end = AB8500_INT_ACC_DETECT_21DB_F,
700 .flags = IORESOURCE_IRQ,
701 },
702 {
703 .name = "ACC_DETECT_21DB_R",
704 .start = AB8500_INT_ACC_DETECT_21DB_R,
705 .end = AB8500_INT_ACC_DETECT_21DB_R,
706 .flags = IORESOURCE_IRQ,
707 },
708 {
709 .name = "ACC_DETECT_22DB_F",
710 .start = AB8500_INT_ACC_DETECT_22DB_F,
711 .end = AB8500_INT_ACC_DETECT_22DB_F,
712 .flags = IORESOURCE_IRQ,
713 },
714 {
715 .name = "ACC_DETECT_22DB_R",
716 .start = AB8500_INT_ACC_DETECT_22DB_R,
717 .end = AB8500_INT_ACC_DETECT_22DB_R,
718 .flags = IORESOURCE_IRQ,
719 },
720};
721
722static struct resource ab8500_charger_resources[] = {
723 {
724 .name = "MAIN_CH_UNPLUG_DET",
725 .start = AB8500_INT_MAIN_CH_UNPLUG_DET,
726 .end = AB8500_INT_MAIN_CH_UNPLUG_DET,
727 .flags = IORESOURCE_IRQ,
728 },
729 {
730 .name = "MAIN_CHARGE_PLUG_DET",
731 .start = AB8500_INT_MAIN_CH_PLUG_DET,
732 .end = AB8500_INT_MAIN_CH_PLUG_DET,
733 .flags = IORESOURCE_IRQ,
734 },
735 {
736 .name = "VBUS_DET_R",
737 .start = AB8500_INT_VBUS_DET_R,
738 .end = AB8500_INT_VBUS_DET_R,
739 .flags = IORESOURCE_IRQ,
740 },
741 {
742 .name = "VBUS_DET_F",
743 .start = AB8500_INT_VBUS_DET_F,
744 .end = AB8500_INT_VBUS_DET_F,
745 .flags = IORESOURCE_IRQ,
746 },
747 {
748 .name = "USB_LINK_STATUS",
749 .start = AB8500_INT_USB_LINK_STATUS,
750 .end = AB8500_INT_USB_LINK_STATUS,
751 .flags = IORESOURCE_IRQ,
752 },
753 {
754 .name = "VBUS_OVV",
755 .start = AB8500_INT_VBUS_OVV,
756 .end = AB8500_INT_VBUS_OVV,
757 .flags = IORESOURCE_IRQ,
758 },
759 {
760 .name = "USB_CH_TH_PROT_R",
761 .start = AB8500_INT_USB_CH_TH_PROT_R,
762 .end = AB8500_INT_USB_CH_TH_PROT_R,
763 .flags = IORESOURCE_IRQ,
764 },
765 {
766 .name = "USB_CH_TH_PROT_F",
767 .start = AB8500_INT_USB_CH_TH_PROT_F,
768 .end = AB8500_INT_USB_CH_TH_PROT_F,
769 .flags = IORESOURCE_IRQ,
770 },
771 {
772 .name = "MAIN_EXT_CH_NOT_OK",
773 .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
774 .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
775 .flags = IORESOURCE_IRQ,
776 },
777 {
778 .name = "MAIN_CH_TH_PROT_R",
779 .start = AB8500_INT_MAIN_CH_TH_PROT_R,
780 .end = AB8500_INT_MAIN_CH_TH_PROT_R,
781 .flags = IORESOURCE_IRQ,
782 },
783 {
784 .name = "MAIN_CH_TH_PROT_F",
785 .start = AB8500_INT_MAIN_CH_TH_PROT_F,
786 .end = AB8500_INT_MAIN_CH_TH_PROT_F,
787 .flags = IORESOURCE_IRQ,
788 },
789 {
790 .name = "USB_CHARGER_NOT_OKR",
791 .start = AB8500_INT_USB_CHARGER_NOT_OKR,
792 .end = AB8500_INT_USB_CHARGER_NOT_OKR,
793 .flags = IORESOURCE_IRQ,
794 },
795 {
796 .name = "CH_WD_EXP",
797 .start = AB8500_INT_CH_WD_EXP,
798 .end = AB8500_INT_CH_WD_EXP,
799 .flags = IORESOURCE_IRQ,
800 },
801 {
802 .name = "VBUS_CH_DROP_END",
803 .start = AB8500_INT_VBUS_CH_DROP_END,
804 .end = AB8500_INT_VBUS_CH_DROP_END,
805 .flags = IORESOURCE_IRQ,
806 },
807};
808
809static struct resource ab8500_btemp_resources[] = {
810 {
811 .name = "BAT_CTRL_INDB",
812 .start = AB8500_INT_BAT_CTRL_INDB,
813 .end = AB8500_INT_BAT_CTRL_INDB,
814 .flags = IORESOURCE_IRQ,
815 },
816 {
817 .name = "BTEMP_LOW",
818 .start = AB8500_INT_BTEMP_LOW,
819 .end = AB8500_INT_BTEMP_LOW,
820 .flags = IORESOURCE_IRQ,
821 },
822 {
823 .name = "BTEMP_HIGH",
824 .start = AB8500_INT_BTEMP_HIGH,
825 .end = AB8500_INT_BTEMP_HIGH,
826 .flags = IORESOURCE_IRQ,
827 },
828 {
829 .name = "BTEMP_LOW_MEDIUM",
830 .start = AB8500_INT_BTEMP_LOW_MEDIUM,
831 .end = AB8500_INT_BTEMP_LOW_MEDIUM,
832 .flags = IORESOURCE_IRQ,
833 },
834 {
835 .name = "BTEMP_MEDIUM_HIGH",
836 .start = AB8500_INT_BTEMP_MEDIUM_HIGH,
837 .end = AB8500_INT_BTEMP_MEDIUM_HIGH,
838 .flags = IORESOURCE_IRQ,
839 },
840};
841
842static struct resource ab8500_fg_resources[] = {
843 {
844 .name = "NCONV_ACCU",
845 .start = AB8500_INT_CCN_CONV_ACC,
846 .end = AB8500_INT_CCN_CONV_ACC,
847 .flags = IORESOURCE_IRQ,
848 },
849 {
850 .name = "BATT_OVV",
851 .start = AB8500_INT_BATT_OVV,
852 .end = AB8500_INT_BATT_OVV,
853 .flags = IORESOURCE_IRQ,
854 },
855 {
856 .name = "LOW_BAT_F",
857 .start = AB8500_INT_LOW_BAT_F,
858 .end = AB8500_INT_LOW_BAT_F,
859 .flags = IORESOURCE_IRQ,
860 },
861 {
862 .name = "LOW_BAT_R",
863 .start = AB8500_INT_LOW_BAT_R,
864 .end = AB8500_INT_LOW_BAT_R,
865 .flags = IORESOURCE_IRQ,
866 },
867 {
868 .name = "CC_INT_CALIB",
869 .start = AB8500_INT_CC_INT_CALIB,
870 .end = AB8500_INT_CC_INT_CALIB,
871 .flags = IORESOURCE_IRQ,
872 },
873 {
874 .name = "CCEOC",
875 .start = AB8500_INT_CCEOC,
876 .end = AB8500_INT_CCEOC,
877 .flags = IORESOURCE_IRQ,
878 },
879};
880
881static struct resource ab8500_chargalg_resources[] = {};
882
883#ifdef CONFIG_DEBUG_FS
884static struct resource ab8500_debug_resources[] = {
885 {
886 .name = "IRQ_AB8500",
887 /*
888 * Number will be filled in. NOTE: this is deliberately
889 * not flagged as an IRQ in ordet to avoid remapping using
890 * the irqdomain in the MFD core, so that this IRQ passes
891 * unremapped to the debug code.
892 */
893 },
894 {
895 .name = "IRQ_FIRST",
896 .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
897 .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
898 .flags = IORESOURCE_IRQ,
899 },
900 {
901 .name = "IRQ_LAST",
902 .start = AB8500_INT_XTAL32K_KO,
903 .end = AB8500_INT_XTAL32K_KO,
904 .flags = IORESOURCE_IRQ,
905 },
906};
907#endif
908
909static struct resource ab8500_usb_resources[] = {
910 {
911 .name = "ID_WAKEUP_R",
912 .start = AB8500_INT_ID_WAKEUP_R,
913 .end = AB8500_INT_ID_WAKEUP_R,
914 .flags = IORESOURCE_IRQ,
915 },
916 {
917 .name = "ID_WAKEUP_F",
918 .start = AB8500_INT_ID_WAKEUP_F,
919 .end = AB8500_INT_ID_WAKEUP_F,
920 .flags = IORESOURCE_IRQ,
921 },
922 {
923 .name = "VBUS_DET_F",
924 .start = AB8500_INT_VBUS_DET_F,
925 .end = AB8500_INT_VBUS_DET_F,
926 .flags = IORESOURCE_IRQ,
927 },
928 {
929 .name = "VBUS_DET_R",
930 .start = AB8500_INT_VBUS_DET_R,
931 .end = AB8500_INT_VBUS_DET_R,
932 .flags = IORESOURCE_IRQ,
933 },
934 {
935 .name = "USB_LINK_STATUS",
936 .start = AB8500_INT_USB_LINK_STATUS,
937 .end = AB8500_INT_USB_LINK_STATUS,
938 .flags = IORESOURCE_IRQ,
939 },
940 {
941 .name = "USB_ADP_PROBE_PLUG",
942 .start = AB8500_INT_ADP_PROBE_PLUG,
943 .end = AB8500_INT_ADP_PROBE_PLUG,
944 .flags = IORESOURCE_IRQ,
945 },
946 {
947 .name = "USB_ADP_PROBE_UNPLUG",
948 .start = AB8500_INT_ADP_PROBE_UNPLUG,
949 .end = AB8500_INT_ADP_PROBE_UNPLUG,
950 .flags = IORESOURCE_IRQ,
951 },
952};
953
954static struct resource ab8505_iddet_resources[] = {
955 {
956 .name = "KeyDeglitch",
957 .start = AB8505_INT_KEYDEGLITCH,
958 .end = AB8505_INT_KEYDEGLITCH,
959 .flags = IORESOURCE_IRQ,
960 },
961 {
962 .name = "KP",
963 .start = AB8505_INT_KP,
964 .end = AB8505_INT_KP,
965 .flags = IORESOURCE_IRQ,
966 },
967 {
968 .name = "IKP",
969 .start = AB8505_INT_IKP,
970 .end = AB8505_INT_IKP,
971 .flags = IORESOURCE_IRQ,
972 },
973 {
974 .name = "IKR",
975 .start = AB8505_INT_IKR,
976 .end = AB8505_INT_IKR,
977 .flags = IORESOURCE_IRQ,
978 },
979 {
980 .name = "KeyStuck",
981 .start = AB8505_INT_KEYSTUCK,
982 .end = AB8505_INT_KEYSTUCK,
983 .flags = IORESOURCE_IRQ,
984 },
985 {
986 .name = "VBUS_DET_R",
987 .start = AB8500_INT_VBUS_DET_R,
988 .end = AB8500_INT_VBUS_DET_R,
989 .flags = IORESOURCE_IRQ,
990 },
991 {
992 .name = "VBUS_DET_F",
993 .start = AB8500_INT_VBUS_DET_F,
994 .end = AB8500_INT_VBUS_DET_F,
995 .flags = IORESOURCE_IRQ,
996 },
997 {
998 .name = "ID_DET_PLUGR",
999 .start = AB8500_INT_ID_DET_PLUGR,
1000 .end = AB8500_INT_ID_DET_PLUGR,
1001 .flags = IORESOURCE_IRQ,
1002 },
1003 {
1004 .name = "ID_DET_PLUGF",
1005 .start = AB8500_INT_ID_DET_PLUGF,
1006 .end = AB8500_INT_ID_DET_PLUGF,
1007 .flags = IORESOURCE_IRQ,
1008 },
1009};
1010
1011static struct resource ab8500_temp_resources[] = {
1012 {
1013 .name = "ABX500_TEMP_WARM",
1014 .start = AB8500_INT_TEMP_WARM,
1015 .end = AB8500_INT_TEMP_WARM,
1016 .flags = IORESOURCE_IRQ,
1017 },
1018};
1019
1020static const struct mfd_cell ab8500_bm_devs[] = {
1021 {
1022 .name = "ab8500-charger",
1023 .of_compatible = "stericsson,ab8500-charger",
1024 .num_resources = ARRAY_SIZE(ab8500_charger_resources),
1025 .resources = ab8500_charger_resources,
1026 .platform_data = &ab8500_bm_data,
1027 .pdata_size = sizeof(ab8500_bm_data),
1028 },
1029 {
1030 .name = "ab8500-btemp",
1031 .of_compatible = "stericsson,ab8500-btemp",
1032 .num_resources = ARRAY_SIZE(ab8500_btemp_resources),
1033 .resources = ab8500_btemp_resources,
1034 .platform_data = &ab8500_bm_data,
1035 .pdata_size = sizeof(ab8500_bm_data),
1036 },
1037 {
1038 .name = "ab8500-fg",
1039 .of_compatible = "stericsson,ab8500-fg",
1040 .num_resources = ARRAY_SIZE(ab8500_fg_resources),
1041 .resources = ab8500_fg_resources,
1042 .platform_data = &ab8500_bm_data,
1043 .pdata_size = sizeof(ab8500_bm_data),
1044 },
1045 {
1046 .name = "ab8500-chargalg",
1047 .of_compatible = "stericsson,ab8500-chargalg",
1048 .num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
1049 .resources = ab8500_chargalg_resources,
1050 .platform_data = &ab8500_bm_data,
1051 .pdata_size = sizeof(ab8500_bm_data),
1052 },
1053};
1054
1055static const struct mfd_cell ab8500_devs[] = {
1056#ifdef CONFIG_DEBUG_FS
1057 {
1058 .name = "ab8500-debug",
1059 .of_compatible = "stericsson,ab8500-debug",
1060 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1061 .resources = ab8500_debug_resources,
1062 },
1063#endif
1064 {
1065 .name = "ab8500-sysctrl",
1066 .of_compatible = "stericsson,ab8500-sysctrl",
1067 },
1068 {
1069 .name = "ab8500-ext-regulator",
1070 .of_compatible = "stericsson,ab8500-ext-regulator",
1071 },
1072 {
1073 .name = "ab8500-regulator",
1074 .of_compatible = "stericsson,ab8500-regulator",
1075 },
1076 {
1077 .name = "abx500-clk",
1078 .of_compatible = "stericsson,abx500-clk",
1079 },
1080 {
1081 .name = "ab8500-gpadc",
1082 .of_compatible = "stericsson,ab8500-gpadc",
1083 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
1084 .resources = ab8500_gpadc_resources,
1085 },
1086 {
1087 .name = "ab8500-rtc",
1088 .of_compatible = "stericsson,ab8500-rtc",
1089 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1090 .resources = ab8500_rtc_resources,
1091 },
1092 {
1093 .name = "ab8500-acc-det",
1094 .of_compatible = "stericsson,ab8500-acc-det",
1095 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1096 .resources = ab8500_av_acc_detect_resources,
1097 },
1098 {
1099
1100 .name = "ab8500-poweron-key",
1101 .of_compatible = "stericsson,ab8500-poweron-key",
1102 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1103 .resources = ab8500_poweronkey_db_resources,
1104 },
1105 {
1106 .name = "ab8500-pwm",
1107 .of_compatible = "stericsson,ab8500-pwm",
1108 .id = 1,
1109 },
1110 {
1111 .name = "ab8500-pwm",
1112 .of_compatible = "stericsson,ab8500-pwm",
1113 .id = 2,
1114 },
1115 {
1116 .name = "ab8500-pwm",
1117 .of_compatible = "stericsson,ab8500-pwm",
1118 .id = 3,
1119 },
1120 {
1121 .name = "ab8500-denc",
1122 .of_compatible = "stericsson,ab8500-denc",
1123 },
1124 {
1125 .name = "pinctrl-ab8500",
1126 .of_compatible = "stericsson,ab8500-gpio",
1127 },
1128 {
1129 .name = "abx500-temp",
1130 .of_compatible = "stericsson,abx500-temp",
1131 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1132 .resources = ab8500_temp_resources,
1133 },
1134 {
1135 .name = "ab8500-usb",
1136 .of_compatible = "stericsson,ab8500-usb",
1137 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1138 .resources = ab8500_usb_resources,
1139 },
1140 {
1141 .name = "ab8500-codec",
1142 .of_compatible = "stericsson,ab8500-codec",
1143 },
1144};
1145
1146static const struct mfd_cell ab9540_devs[] = {
1147#ifdef CONFIG_DEBUG_FS
1148 {
1149 .name = "ab8500-debug",
1150 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1151 .resources = ab8500_debug_resources,
1152 },
1153#endif
1154 {
1155 .name = "ab8500-sysctrl",
1156 },
1157 {
1158 .name = "ab8500-ext-regulator",
1159 },
1160 {
1161 .name = "ab8500-regulator",
1162 },
1163 {
1164 .name = "abx500-clk",
1165 .of_compatible = "stericsson,abx500-clk",
1166 },
1167 {
1168 .name = "ab8500-gpadc",
1169 .of_compatible = "stericsson,ab8500-gpadc",
1170 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
1171 .resources = ab8500_gpadc_resources,
1172 },
1173 {
1174 .name = "ab8500-rtc",
1175 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1176 .resources = ab8500_rtc_resources,
1177 },
1178 {
1179 .name = "ab8500-acc-det",
1180 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1181 .resources = ab8500_av_acc_detect_resources,
1182 },
1183 {
1184 .name = "ab8500-poweron-key",
1185 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1186 .resources = ab8500_poweronkey_db_resources,
1187 },
1188 {
1189 .name = "ab8500-pwm",
1190 .id = 1,
1191 },
1192 {
1193 .name = "abx500-temp",
1194 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1195 .resources = ab8500_temp_resources,
1196 },
1197 {
1198 .name = "pinctrl-ab9540",
1199 .of_compatible = "stericsson,ab9540-gpio",
1200 },
1201 {
1202 .name = "ab9540-usb",
1203 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1204 .resources = ab8500_usb_resources,
1205 },
1206 {
1207 .name = "ab9540-codec",
1208 },
1209 {
1210 .name = "ab-iddet",
1211 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1212 .resources = ab8505_iddet_resources,
1213 },
1214};
1215
1216/* Device list for ab8505 */
1217static const struct mfd_cell ab8505_devs[] = {
1218#ifdef CONFIG_DEBUG_FS
1219 {
1220 .name = "ab8500-debug",
1221 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1222 .resources = ab8500_debug_resources,
1223 },
1224#endif
1225 {
1226 .name = "ab8500-sysctrl",
1227 },
1228 {
1229 .name = "ab8500-regulator",
1230 },
1231 {
1232 .name = "abx500-clk",
1233 .of_compatible = "stericsson,abx500-clk",
1234 },
1235 {
1236 .name = "ab8500-gpadc",
1237 .of_compatible = "stericsson,ab8500-gpadc",
1238 .num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
1239 .resources = ab8505_gpadc_resources,
1240 },
1241 {
1242 .name = "ab8500-rtc",
1243 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1244 .resources = ab8500_rtc_resources,
1245 },
1246 {
1247 .name = "ab8500-acc-det",
1248 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1249 .resources = ab8500_av_acc_detect_resources,
1250 },
1251 {
1252 .name = "ab8500-poweron-key",
1253 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1254 .resources = ab8500_poweronkey_db_resources,
1255 },
1256 {
1257 .name = "ab8500-pwm",
1258 .id = 1,
1259 },
1260 {
1261 .name = "pinctrl-ab8505",
1262 },
1263 {
1264 .name = "ab8500-usb",
1265 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1266 .resources = ab8500_usb_resources,
1267 },
1268 {
1269 .name = "ab8500-codec",
1270 },
1271 {
1272 .name = "ab-iddet",
1273 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1274 .resources = ab8505_iddet_resources,
1275 },
1276};
1277
1278static const struct mfd_cell ab8540_devs[] = {
1279#ifdef CONFIG_DEBUG_FS
1280 {
1281 .name = "ab8500-debug",
1282 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1283 .resources = ab8500_debug_resources,
1284 },
1285#endif
1286 {
1287 .name = "ab8500-sysctrl",
1288 },
1289 {
1290 .name = "ab8500-ext-regulator",
1291 },
1292 {
1293 .name = "ab8500-regulator",
1294 },
1295 {
1296 .name = "abx500-clk",
1297 .of_compatible = "stericsson,abx500-clk",
1298 },
1299 {
1300 .name = "ab8500-gpadc",
1301 .of_compatible = "stericsson,ab8500-gpadc",
1302 .num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
1303 .resources = ab8505_gpadc_resources,
1304 },
1305 {
1306 .name = "ab8500-acc-det",
1307 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1308 .resources = ab8500_av_acc_detect_resources,
1309 },
1310 {
1311 .name = "ab8500-poweron-key",
1312 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1313 .resources = ab8500_poweronkey_db_resources,
1314 },
1315 {
1316 .name = "ab8500-pwm",
1317 .id = 1,
1318 },
1319 {
1320 .name = "abx500-temp",
1321 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1322 .resources = ab8500_temp_resources,
1323 },
1324 {
1325 .name = "pinctrl-ab8540",
1326 },
1327 {
1328 .name = "ab8540-usb",
1329 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1330 .resources = ab8500_usb_resources,
1331 },
1332 {
1333 .name = "ab8540-codec",
1334 },
1335 {
1336 .name = "ab-iddet",
1337 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1338 .resources = ab8505_iddet_resources,
1339 },
1340};
1341
1342static const struct mfd_cell ab8540_cut1_devs[] = {
1343 {
1344 .name = "ab8500-rtc",
1345 .of_compatible = "stericsson,ab8500-rtc",
1346 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1347 .resources = ab8500_rtc_resources,
1348 },
1349};
1350
1351static const struct mfd_cell ab8540_cut2_devs[] = {
1352 {
1353 .name = "ab8540-rtc",
1354 .of_compatible = "stericsson,ab8540-rtc",
1355 .num_resources = ARRAY_SIZE(ab8540_rtc_resources),
1356 .resources = ab8540_rtc_resources,
1357 },
1358};
1359
1360static ssize_t show_chip_id(struct device *dev,
1361 struct device_attribute *attr, char *buf)
1362{
1363 struct ab8500 *ab8500;
1364
1365 ab8500 = dev_get_drvdata(dev);
1366
1367 return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
1368}
1369
1370/*
1371 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1372 * 0x01 Swoff bit programming
1373 * 0x02 Thermal protection activation
1374 * 0x04 Vbat lower then BattOk falling threshold
1375 * 0x08 Watchdog expired
1376 * 0x10 Non presence of 32kHz clock
1377 * 0x20 Battery level lower than power on reset threshold
1378 * 0x40 Power on key 1 pressed longer than 10 seconds
1379 * 0x80 DB8500 thermal shutdown
1380 */
1381static ssize_t show_switch_off_status(struct device *dev,
1382 struct device_attribute *attr, char *buf)
1383{
1384 int ret;
1385 u8 value;
1386 struct ab8500 *ab8500;
1387
1388 ab8500 = dev_get_drvdata(dev);
1389 ret = get_register_interruptible(ab8500, AB8500_RTC,
1390 AB8500_SWITCH_OFF_STATUS, &value);
1391 if (ret < 0)
1392 return ret;
1393 return sprintf(buf, "%#x\n", value);
1394}
1395
1396/* use mask and set to override the register turn_on_stat value */
1397void ab8500_override_turn_on_stat(u8 mask, u8 set)
1398{
1399 spin_lock(&on_stat_lock);
1400 turn_on_stat_mask = mask;
1401 turn_on_stat_set = set;
1402 spin_unlock(&on_stat_lock);
1403}
1404
1405/*
1406 * ab8500 has turned on due to (TURN_ON_STATUS):
1407 * 0x01 PORnVbat
1408 * 0x02 PonKey1dbF
1409 * 0x04 PonKey2dbF
1410 * 0x08 RTCAlarm
1411 * 0x10 MainChDet
1412 * 0x20 VbusDet
1413 * 0x40 UsbIDDetect
1414 * 0x80 Reserved
1415 */
1416static ssize_t show_turn_on_status(struct device *dev,
1417 struct device_attribute *attr, char *buf)
1418{
1419 int ret;
1420 u8 value;
1421 struct ab8500 *ab8500;
1422
1423 ab8500 = dev_get_drvdata(dev);
1424 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1425 AB8500_TURN_ON_STATUS, &value);
1426 if (ret < 0)
1427 return ret;
1428
1429 /*
1430 * In L9540, turn_on_status register is not updated correctly if
1431 * the device is rebooted with AC/USB charger connected. Due to
1432 * this, the device boots android instead of entering into charge
1433 * only mode. Read the AC/USB status register to detect the charger
1434 * presence and update the turn on status manually.
1435 */
1436 if (is_ab9540(ab8500)) {
1437 spin_lock(&on_stat_lock);
1438 value = (value & turn_on_stat_mask) | turn_on_stat_set;
1439 spin_unlock(&on_stat_lock);
1440 }
1441
1442 return sprintf(buf, "%#x\n", value);
1443}
1444
1445static ssize_t show_turn_on_status_2(struct device *dev,
1446 struct device_attribute *attr, char *buf)
1447{
1448 int ret;
1449 u8 value;
1450 struct ab8500 *ab8500;
1451
1452 ab8500 = dev_get_drvdata(dev);
1453 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1454 AB8505_TURN_ON_STATUS_2, &value);
1455 if (ret < 0)
1456 return ret;
1457 return sprintf(buf, "%#x\n", (value & 0x1));
1458}
1459
1460static ssize_t show_ab9540_dbbrstn(struct device *dev,
1461 struct device_attribute *attr, char *buf)
1462{
1463 struct ab8500 *ab8500;
1464 int ret;
1465 u8 value;
1466
1467 ab8500 = dev_get_drvdata(dev);
1468
1469 ret = get_register_interruptible(ab8500, AB8500_REGU_CTRL2,
1470 AB9540_MODEM_CTRL2_REG, &value);
1471 if (ret < 0)
1472 return ret;
1473
1474 return sprintf(buf, "%d\n",
1475 (value & AB9540_MODEM_CTRL2_SWDBBRSTN_BIT) ? 1 : 0);
1476}
1477
1478static ssize_t store_ab9540_dbbrstn(struct device *dev,
1479 struct device_attribute *attr, const char *buf, size_t count)
1480{
1481 struct ab8500 *ab8500;
1482 int ret = count;
1483 int err;
1484 u8 bitvalues;
1485
1486 ab8500 = dev_get_drvdata(dev);
1487
1488 if (count > 0) {
1489 switch (buf[0]) {
1490 case '0':
1491 bitvalues = 0;
1492 break;
1493 case '1':
1494 bitvalues = AB9540_MODEM_CTRL2_SWDBBRSTN_BIT;
1495 break;
1496 default:
1497 goto exit;
1498 }
1499
1500 err = mask_and_set_register_interruptible(ab8500,
1501 AB8500_REGU_CTRL2, AB9540_MODEM_CTRL2_REG,
1502 AB9540_MODEM_CTRL2_SWDBBRSTN_BIT, bitvalues);
1503 if (err)
1504 dev_info(ab8500->dev,
1505 "Failed to set DBBRSTN %c, err %#x\n",
1506 buf[0], err);
1507 }
1508
1509exit:
1510 return ret;
1511}
1512
1513static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);
1514static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);
1515static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL);
1516static DEVICE_ATTR(turn_on_status_2, S_IRUGO, show_turn_on_status_2, NULL);
1517static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,
1518 show_ab9540_dbbrstn, store_ab9540_dbbrstn);
1519
1520static struct attribute *ab8500_sysfs_entries[] = {
1521 &dev_attr_chip_id.attr,
1522 &dev_attr_switch_off_status.attr,
1523 &dev_attr_turn_on_status.attr,
1524 NULL,
1525};
1526
1527static struct attribute *ab8505_sysfs_entries[] = {
1528 &dev_attr_turn_on_status_2.attr,
1529 NULL,
1530};
1531
1532static struct attribute *ab9540_sysfs_entries[] = {
1533 &dev_attr_chip_id.attr,
1534 &dev_attr_switch_off_status.attr,
1535 &dev_attr_turn_on_status.attr,
1536 &dev_attr_dbbrstn.attr,
1537 NULL,
1538};
1539
1540static struct attribute_group ab8500_attr_group = {
1541 .attrs = ab8500_sysfs_entries,
1542};
1543
1544static struct attribute_group ab8505_attr_group = {
1545 .attrs = ab8505_sysfs_entries,
1546};
1547
1548static struct attribute_group ab9540_attr_group = {
1549 .attrs = ab9540_sysfs_entries,
1550};
1551
1552static int ab8500_probe(struct platform_device *pdev)
1553{
1554 static char *switch_off_status[] = {
1555 "Swoff bit programming",
1556 "Thermal protection activation",
1557 "Vbat lower then BattOk falling threshold",
1558 "Watchdog expired",
1559 "Non presence of 32kHz clock",
1560 "Battery level lower than power on reset threshold",
1561 "Power on key 1 pressed longer than 10 seconds",
1562 "DB8500 thermal shutdown"};
1563 static char *turn_on_status[] = {
1564 "Battery rising (Vbat)",
1565 "Power On Key 1 dbF",
1566 "Power On Key 2 dbF",
1567 "RTC Alarm",
1568 "Main Charger Detect",
1569 "Vbus Detect (USB)",
1570 "USB ID Detect",
1571 "UART Factory Mode Detect"};
1572 struct ab8500_platform_data *plat = dev_get_platdata(&pdev->dev);
1573 const struct platform_device_id *platid = platform_get_device_id(pdev);
1574 enum ab8500_version version = AB8500_VERSION_UNDEFINED;
1575 struct device_node *np = pdev->dev.of_node;
1576 struct ab8500 *ab8500;
1577 struct resource *resource;
1578 int ret;
1579 int i;
1580 u8 value;
1581
1582 ab8500 = devm_kzalloc(&pdev->dev, sizeof *ab8500, GFP_KERNEL);
1583 if (!ab8500)
1584 return -ENOMEM;
1585
1586 ab8500->dev = &pdev->dev;
1587
1588 resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1589 if (!resource) {
1590 dev_err(&pdev->dev, "no IRQ resource\n");
1591 return -ENODEV;
1592 }
1593
1594 ab8500->irq = resource->start;
1595
1596 ab8500->read = ab8500_prcmu_read;
1597 ab8500->write = ab8500_prcmu_write;
1598 ab8500->write_masked = ab8500_prcmu_write_masked;
1599
1600 mutex_init(&ab8500->lock);
1601 mutex_init(&ab8500->irq_lock);
1602 atomic_set(&ab8500->transfer_ongoing, 0);
1603
1604 platform_set_drvdata(pdev, ab8500);
1605
1606 if (platid)
1607 version = platid->driver_data;
1608
1609 if (version != AB8500_VERSION_UNDEFINED)
1610 ab8500->version = version;
1611 else {
1612 ret = get_register_interruptible(ab8500, AB8500_MISC,
1613 AB8500_IC_NAME_REG, &value);
1614 if (ret < 0) {
1615 dev_err(&pdev->dev, "could not probe HW\n");
1616 return ret;
1617 }
1618
1619 ab8500->version = value;
1620 }
1621
1622 ret = get_register_interruptible(ab8500, AB8500_MISC,
1623 AB8500_REV_REG, &value);
1624 if (ret < 0)
1625 return ret;
1626
1627 ab8500->chip_id = value;
1628
1629 dev_info(ab8500->dev, "detected chip, %s rev. %1x.%1x\n",
1630 ab8500_version_str[ab8500->version],
1631 ab8500->chip_id >> 4,
1632 ab8500->chip_id & 0x0F);
1633
1634 /* Configure AB8540 */
1635 if (is_ab8540(ab8500)) {
1636 ab8500->mask_size = AB8540_NUM_IRQ_REGS;
1637 ab8500->irq_reg_offset = ab8540_irq_regoffset;
1638 ab8500->it_latchhier_num = AB8540_IT_LATCHHIER_NUM;
1639 }/* Configure AB8500 or AB9540 IRQ */
1640 else if (is_ab9540(ab8500) || is_ab8505(ab8500)) {
1641 ab8500->mask_size = AB9540_NUM_IRQ_REGS;
1642 ab8500->irq_reg_offset = ab9540_irq_regoffset;
1643 ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
1644 } else {
1645 ab8500->mask_size = AB8500_NUM_IRQ_REGS;
1646 ab8500->irq_reg_offset = ab8500_irq_regoffset;
1647 ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
1648 }
1649 ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL);
1650 if (!ab8500->mask)
1651 return -ENOMEM;
1652 ab8500->oldmask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL);
1653 if (!ab8500->oldmask)
1654 return -ENOMEM;
1655
1656 /*
1657 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1658 * 0x01 Swoff bit programming
1659 * 0x02 Thermal protection activation
1660 * 0x04 Vbat lower then BattOk falling threshold
1661 * 0x08 Watchdog expired
1662 * 0x10 Non presence of 32kHz clock
1663 * 0x20 Battery level lower than power on reset threshold
1664 * 0x40 Power on key 1 pressed longer than 10 seconds
1665 * 0x80 DB8500 thermal shutdown
1666 */
1667
1668 ret = get_register_interruptible(ab8500, AB8500_RTC,
1669 AB8500_SWITCH_OFF_STATUS, &value);
1670 if (ret < 0)
1671 return ret;
1672 dev_info(ab8500->dev, "switch off cause(s) (%#x): ", value);
1673
1674 if (value) {
1675 for (i = 0; i < ARRAY_SIZE(switch_off_status); i++) {
1676 if (value & 1)
1677 printk(KERN_CONT " \"%s\"",
1678 switch_off_status[i]);
1679 value = value >> 1;
1680
1681 }
1682 printk(KERN_CONT "\n");
1683 } else {
1684 printk(KERN_CONT " None\n");
1685 }
1686 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1687 AB8500_TURN_ON_STATUS, &value);
1688 if (ret < 0)
1689 return ret;
1690 dev_info(ab8500->dev, "turn on reason(s) (%#x): ", value);
1691
1692 if (value) {
1693 for (i = 0; i < ARRAY_SIZE(turn_on_status); i++) {
1694 if (value & 1)
1695 printk("\"%s\" ", turn_on_status[i]);
1696 value = value >> 1;
1697 }
1698 printk("\n");
1699 } else {
1700 printk("None\n");
1701 }
1702
1703 if (plat && plat->init)
1704 plat->init(ab8500);
1705
1706 if (is_ab9540(ab8500)) {
1707 ret = get_register_interruptible(ab8500, AB8500_CHARGER,
1708 AB8500_CH_USBCH_STAT1_REG, &value);
1709 if (ret < 0)
1710 return ret;
1711 if ((value & VBUS_DET_DBNC1) && (value & VBUS_DET_DBNC100))
1712 ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON,
1713 AB8500_VBUS_DET);
1714 }
1715
1716 /* Clear and mask all interrupts */
1717 for (i = 0; i < ab8500->mask_size; i++) {
1718 /*
1719 * Interrupt register 12 doesn't exist prior to AB8500 version
1720 * 2.0
1721 */
1722 if (ab8500->irq_reg_offset[i] == 11 &&
1723 is_ab8500_1p1_or_earlier(ab8500))
1724 continue;
1725
1726 if (ab8500->irq_reg_offset[i] < 0)
1727 continue;
1728
1729 get_register_interruptible(ab8500, AB8500_INTERRUPT,
1730 AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i],
1731 &value);
1732 set_register_interruptible(ab8500, AB8500_INTERRUPT,
1733 AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i], 0xff);
1734 }
1735
1736 ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
1737 if (ret)
1738 return ret;
1739
1740 for (i = 0; i < ab8500->mask_size; i++)
1741 ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
1742
1743 ret = ab8500_irq_init(ab8500, np);
1744 if (ret)
1745 return ret;
1746
1747 ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL,
1748 ab8500_hierarchical_irq,
1749 IRQF_ONESHOT | IRQF_NO_SUSPEND,
1750 "ab8500", ab8500);
1751 if (ret)
1752 return ret;
1753
1754#if CONFIG_DEBUG_FS
1755 /* Pass to debugfs */
1756 ab8500_debug_resources[0].start = ab8500->irq;
1757 ab8500_debug_resources[0].end = ab8500->irq;
1758#endif
1759
1760 if (is_ab9540(ab8500))
1761 ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
1762 ARRAY_SIZE(ab9540_devs), NULL,
1763 0, ab8500->domain);
1764 else if (is_ab8540(ab8500)) {
1765 ret = mfd_add_devices(ab8500->dev, 0, ab8540_devs,
1766 ARRAY_SIZE(ab8540_devs), NULL,
1767 0, ab8500->domain);
1768 if (ret)
1769 return ret;
1770
1771 if (is_ab8540_1p2_or_earlier(ab8500))
1772 ret = mfd_add_devices(ab8500->dev, 0, ab8540_cut1_devs,
1773 ARRAY_SIZE(ab8540_cut1_devs), NULL,
1774 0, ab8500->domain);
1775 else /* ab8540 >= cut2 */
1776 ret = mfd_add_devices(ab8500->dev, 0, ab8540_cut2_devs,
1777 ARRAY_SIZE(ab8540_cut2_devs), NULL,
1778 0, ab8500->domain);
1779 } else if (is_ab8505(ab8500))
1780 ret = mfd_add_devices(ab8500->dev, 0, ab8505_devs,
1781 ARRAY_SIZE(ab8505_devs), NULL,
1782 0, ab8500->domain);
1783 else
1784 ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
1785 ARRAY_SIZE(ab8500_devs), NULL,
1786 0, ab8500->domain);
1787 if (ret)
1788 return ret;
1789
1790 if (!no_bm) {
1791 /* Add battery management devices */
1792 ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
1793 ARRAY_SIZE(ab8500_bm_devs), NULL,
1794 0, ab8500->domain);
1795 if (ret)
1796 dev_err(ab8500->dev, "error adding bm devices\n");
1797 }
1798
1799 if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1800 ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))
1801 ret = sysfs_create_group(&ab8500->dev->kobj,
1802 &ab9540_attr_group);
1803 else
1804 ret = sysfs_create_group(&ab8500->dev->kobj,
1805 &ab8500_attr_group);
1806
1807 if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1808 ab8500->chip_id >= AB8500_CUT2P0)
1809 ret = sysfs_create_group(&ab8500->dev->kobj,
1810 &ab8505_attr_group);
1811
1812 if (ret)
1813 dev_err(ab8500->dev, "error creating sysfs entries\n");
1814
1815 return ret;
1816}
1817
1818static int ab8500_remove(struct platform_device *pdev)
1819{
1820 struct ab8500 *ab8500 = platform_get_drvdata(pdev);
1821
1822 if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1823 ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))
1824 sysfs_remove_group(&ab8500->dev->kobj, &ab9540_attr_group);
1825 else
1826 sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group);
1827
1828 if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1829 ab8500->chip_id >= AB8500_CUT2P0)
1830 sysfs_remove_group(&ab8500->dev->kobj, &ab8505_attr_group);
1831
1832 mfd_remove_devices(ab8500->dev);
1833
1834 return 0;
1835}
1836
1837static const struct platform_device_id ab8500_id[] = {
1838 { "ab8500-core", AB8500_VERSION_AB8500 },
1839 { "ab8505-i2c", AB8500_VERSION_AB8505 },
1840 { "ab9540-i2c", AB8500_VERSION_AB9540 },
1841 { "ab8540-i2c", AB8500_VERSION_AB8540 },
1842 { }
1843};
1844
1845static struct platform_driver ab8500_core_driver = {
1846 .driver = {
1847 .name = "ab8500-core",
1848 .owner = THIS_MODULE,
1849 },
1850 .probe = ab8500_probe,
1851 .remove = ab8500_remove,
1852 .id_table = ab8500_id,
1853};
1854
1855static int __init ab8500_core_init(void)
1856{
1857 return platform_driver_register(&ab8500_core_driver);
1858}
1859
1860static void __exit ab8500_core_exit(void)
1861{
1862 platform_driver_unregister(&ab8500_core_driver);
1863}
1864core_initcall(ab8500_core_init);
1865module_exit(ab8500_core_exit);
1866
1867MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent");
1868MODULE_DESCRIPTION("AB8500 MFD core");
1869MODULE_LICENSE("GPL v2");