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mfd: Don't use mutex_lock_interruptible in ab8500-core
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / mfd / ab8500-core.c
CommitLineData
62579266
RV		 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>
adceed62 7 * Author: Mattias Wallin <mattias.wallin@stericsson.com>
62579266
RV		 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>
47c16975 19#include <linux/mfd/abx500.h>
ee66e653 20#include <linux/mfd/abx500/ab8500.h>
549931f9 21#include <linux/regulator/ab8500.h>
62579266
RV		 22
23/*
24 * Interrupt register offsets
25 * Bank : 0x0E
26 */
47c16975
MW		 27#define AB8500_IT_SOURCE1_REG 0x00
28#define AB8500_IT_SOURCE2_REG 0x01
29#define AB8500_IT_SOURCE3_REG 0x02
30#define AB8500_IT_SOURCE4_REG 0x03
31#define AB8500_IT_SOURCE5_REG 0x04
32#define AB8500_IT_SOURCE6_REG 0x05
33#define AB8500_IT_SOURCE7_REG 0x06
34#define AB8500_IT_SOURCE8_REG 0x07
d6255529 35#define AB9540_IT_SOURCE13_REG 0x0C
47c16975
MW		 36#define AB8500_IT_SOURCE19_REG 0x12
37#define AB8500_IT_SOURCE20_REG 0x13
38#define AB8500_IT_SOURCE21_REG 0x14
39#define AB8500_IT_SOURCE22_REG 0x15
40#define AB8500_IT_SOURCE23_REG 0x16
41#define AB8500_IT_SOURCE24_REG 0x17
62579266
RV		 42
43/*
44 * latch registers
45 */
47c16975
MW		 46#define AB8500_IT_LATCH1_REG 0x20
47#define AB8500_IT_LATCH2_REG 0x21
48#define AB8500_IT_LATCH3_REG 0x22
49#define AB8500_IT_LATCH4_REG 0x23
50#define AB8500_IT_LATCH5_REG 0x24
51#define AB8500_IT_LATCH6_REG 0x25
52#define AB8500_IT_LATCH7_REG 0x26
53#define AB8500_IT_LATCH8_REG 0x27
54#define AB8500_IT_LATCH9_REG 0x28
55#define AB8500_IT_LATCH10_REG 0x29
92d50a41 56#define AB8500_IT_LATCH12_REG 0x2B
d6255529 57#define AB9540_IT_LATCH13_REG 0x2C
47c16975
MW		 58#define AB8500_IT_LATCH19_REG 0x32
59#define AB8500_IT_LATCH20_REG 0x33
60#define AB8500_IT_LATCH21_REG 0x34
61#define AB8500_IT_LATCH22_REG 0x35
62#define AB8500_IT_LATCH23_REG 0x36
63#define AB8500_IT_LATCH24_REG 0x37
62579266
RV		 64
65/*
66 * mask registers
67 */
68
47c16975
MW		 69#define AB8500_IT_MASK1_REG 0x40
70#define AB8500_IT_MASK2_REG 0x41
71#define AB8500_IT_MASK3_REG 0x42
72#define AB8500_IT_MASK4_REG 0x43
73#define AB8500_IT_MASK5_REG 0x44
74#define AB8500_IT_MASK6_REG 0x45
75#define AB8500_IT_MASK7_REG 0x46
76#define AB8500_IT_MASK8_REG 0x47
77#define AB8500_IT_MASK9_REG 0x48
78#define AB8500_IT_MASK10_REG 0x49
79#define AB8500_IT_MASK11_REG 0x4A
80#define AB8500_IT_MASK12_REG 0x4B
81#define AB8500_IT_MASK13_REG 0x4C
82#define AB8500_IT_MASK14_REG 0x4D
83#define AB8500_IT_MASK15_REG 0x4E
84#define AB8500_IT_MASK16_REG 0x4F
85#define AB8500_IT_MASK17_REG 0x50
86#define AB8500_IT_MASK18_REG 0x51
87#define AB8500_IT_MASK19_REG 0x52
88#define AB8500_IT_MASK20_REG 0x53
89#define AB8500_IT_MASK21_REG 0x54
90#define AB8500_IT_MASK22_REG 0x55
91#define AB8500_IT_MASK23_REG 0x56
92#define AB8500_IT_MASK24_REG 0x57
93
94#define AB8500_REV_REG 0x80
0f620837 95#define AB8500_IC_NAME_REG 0x82
e5c238c3 96#define AB8500_SWITCH_OFF_STATUS 0x00
62579266 97
b4a31037
AL		 98#define AB8500_TURN_ON_STATUS 0x00
99
d6255529
LW		 100#define AB9540_MODEM_CTRL2_REG 0x23
101#define AB9540_MODEM_CTRL2_SWDBBRSTN_BIT BIT(2)
102
62579266
RV		 103/*
104 * Map interrupt numbers to the LATCH and MASK register offsets, Interrupt
2ced445e
LW		 105 * numbers are indexed into this array with (num / 8). The interupts are
106 * defined in linux/mfd/ab8500.h
62579266
RV		 107 *
108 * This is one off from the register names, i.e. AB8500_IT_MASK1_REG is at
109 * offset 0.
110 */
2ced445e 111/* AB8500 support */
62579266 112static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = {
92d50a41 113 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21,
62579266
RV		 114};
115
d6255529
LW		 116/* AB9540 support */
117static const int ab9540_irq_regoffset[AB9540_NUM_IRQ_REGS] = {
118 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24,
119};
120
0f620837
LW		 121static const char ab8500_version_str[][7] = {
122 [AB8500_VERSION_AB8500] = "AB8500",
123 [AB8500_VERSION_AB8505] = "AB8505",
124 [AB8500_VERSION_AB9540] = "AB9540",
125 [AB8500_VERSION_AB8540] = "AB8540",
126};
127
47c16975
MW		 128static int ab8500_get_chip_id(struct device *dev)
129{
6bce7bf1
MW		 130 struct ab8500 *ab8500;
131
132 if (!dev)
133 return -EINVAL;
134 ab8500 = dev_get_drvdata(dev->parent);
135 return ab8500 ? (int)ab8500->chip_id : -EINVAL;
47c16975
MW		 136}
137
138static int set_register_interruptible(struct ab8500 *ab8500, u8 bank,
139 u8 reg, u8 data)
62579266
RV		 140{
141 int ret;
47c16975
MW		 142 /*
143 * Put the u8 bank and u8 register together into a an u16.
144 * The bank on higher 8 bits and register in lower 8 bits.
145 * */
146 u16 addr = ((u16)bank) << 8 | reg;
62579266
RV		 147
148 dev_vdbg(ab8500->dev, "wr: addr %#x <= %#x\n", addr, data);
149
392cbd1e 150 mutex_lock(&ab8500->lock);
47c16975 151
62579266
RV		 152 ret = ab8500->write(ab8500, addr, data);
153 if (ret < 0)
154 dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
155 addr, ret);
47c16975 156 mutex_unlock(&ab8500->lock);
62579266
RV		 157
158 return ret;
159}
160
47c16975
MW		 161static int ab8500_set_register(struct device *dev, u8 bank,
162 u8 reg, u8 value)
62579266 163{
47c16975 164 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
62579266 165
47c16975 166 return set_register_interruptible(ab8500, bank, reg, value);
62579266 167}
62579266 168
47c16975
MW		 169static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
170 u8 reg, u8 *value)
62579266
RV		 171{
172 int ret;
47c16975
MW		 173 /* put the u8 bank and u8 reg together into a an u16.
174 * bank on higher 8 bits and reg in lower */
175 u16 addr = ((u16)bank) << 8 | reg;
176
392cbd1e 177 mutex_lock(&ab8500->lock);
62579266
RV		 178
179 ret = ab8500->read(ab8500, addr);
180 if (ret < 0)
181 dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
182 addr, ret);
47c16975
MW		 183 else
184 *value = ret;
62579266 185
47c16975 186 mutex_unlock(&ab8500->lock);
62579266
RV		 187 dev_vdbg(ab8500->dev, "rd: addr %#x => data %#x\n", addr, ret);
188
189 return ret;
190}
191
47c16975
MW		 192static int ab8500_get_register(struct device *dev, u8 bank,
193 u8 reg, u8 *value)
62579266 194{
47c16975 195 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
62579266 196
47c16975 197 return get_register_interruptible(ab8500, bank, reg, value);
62579266 198}
47c16975
MW		 199
200static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank,
201 u8 reg, u8 bitmask, u8 bitvalues)
62579266
RV		 202{
203 int ret;
47c16975
MW		 204 u8 data;
205 /* put the u8 bank and u8 reg together into a an u16.
206 * bank on higher 8 bits and reg in lower */
207 u16 addr = ((u16)bank) << 8 | reg;
62579266 208
392cbd1e 209 mutex_lock(&ab8500->lock);
62579266 210
47c16975
MW		 211 ret = ab8500->read(ab8500, addr);
212 if (ret < 0) {
213 dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
214 addr, ret);
62579266 215 goto out;
47c16975 216 }
62579266 217
47c16975
MW		 218 data = (u8)ret;
219 data = (~bitmask & data) | (bitmask & bitvalues);
62579266 220
47c16975
MW		 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);
62579266 225
47c16975 226 dev_vdbg(ab8500->dev, "mask: addr %#x => data %#x\n", addr, data);
62579266
RV		 227out:
228 mutex_unlock(&ab8500->lock);
229 return ret;
230}
47c16975
MW		 231
232static int ab8500_mask_and_set_register(struct device *dev,
233 u8 bank, u8 reg, u8 bitmask, u8 bitvalues)
234{
235 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
236
237 return mask_and_set_register_interruptible(ab8500, bank, reg,
238 bitmask, bitvalues);
239
240}
241
242static struct abx500_ops ab8500_ops = {
243 .get_chip_id = ab8500_get_chip_id,
244 .get_register = ab8500_get_register,
245 .set_register = ab8500_set_register,
246 .get_register_page = NULL,
247 .set_register_page = NULL,
248 .mask_and_set_register = ab8500_mask_and_set_register,
249 .event_registers_startup_state_get = NULL,
250 .startup_irq_enabled = NULL,
251};
62579266 252
9505a0a0 253static void ab8500_irq_lock(struct irq_data *data)
62579266 254{
9505a0a0 255 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
62579266
RV		 256
257 mutex_lock(&ab8500->irq_lock);
258}
259
9505a0a0 260static void ab8500_irq_sync_unlock(struct irq_data *data)
62579266 261{
9505a0a0 262 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
62579266
RV		 263 int i;
264
2ced445e 265 for (i = 0; i < ab8500->mask_size; i++) {
62579266
RV		 266 u8 old = ab8500->oldmask[i];
267 u8 new = ab8500->mask[i];
268 int reg;
269
270 if (new == old)
271 continue;
272
0f620837
LW		 273 /*
274 * Interrupt register 12 doesn't exist prior to AB8500 version
275 * 2.0
276 */
277 if (ab8500->irq_reg_offset[i] == 11 &&
278 is_ab8500_1p1_or_earlier(ab8500))
92d50a41
MW		 279 continue;
280
62579266
RV		 281 ab8500->oldmask[i] = new;
282
2ced445e 283 reg = AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i];
47c16975 284 set_register_interruptible(ab8500, AB8500_INTERRUPT, reg, new);
62579266
RV		 285 }
286
287 mutex_unlock(&ab8500->irq_lock);
288}
289
9505a0a0 290static void ab8500_irq_mask(struct irq_data *data)
62579266 291{
9505a0a0
MB		 292 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
293 int offset = data->irq - ab8500->irq_base;
62579266
RV		 294 int index = offset / 8;
295 int mask = 1 << (offset % 8);
296
297 ab8500->mask[index] |= mask;
298}
299
9505a0a0 300static void ab8500_irq_unmask(struct irq_data *data)
62579266 301{
9505a0a0
MB		 302 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
303 int offset = data->irq - ab8500->irq_base;
62579266
RV		 304 int index = offset / 8;
305 int mask = 1 << (offset % 8);
306
307 ab8500->mask[index] &= ~mask;
308}
309
310static struct irq_chip ab8500_irq_chip = {
311 .name = "ab8500",
9505a0a0
MB		 312 .irq_bus_lock = ab8500_irq_lock,
313 .irq_bus_sync_unlock = ab8500_irq_sync_unlock,
314 .irq_mask = ab8500_irq_mask,
e6f9306e 315 .irq_disable = ab8500_irq_mask,
9505a0a0 316 .irq_unmask = ab8500_irq_unmask,
62579266
RV		 317};
318
319static irqreturn_t ab8500_irq(int irq, void *dev)
320{
321 struct ab8500 *ab8500 = dev;
322 int i;
323
324 dev_vdbg(ab8500->dev, "interrupt\n");
325
2ced445e
LW		 326 for (i = 0; i < ab8500->mask_size; i++) {
327 int regoffset = ab8500->irq_reg_offset[i];
62579266 328 int status;
47c16975 329 u8 value;
62579266 330
0f620837
LW		 331 /*
332 * Interrupt register 12 doesn't exist prior to AB8500 version
333 * 2.0
334 */
335 if (regoffset == 11 && is_ab8500_1p1_or_earlier(ab8500))
92d50a41
MW		 336 continue;
337
47c16975
MW		 338 status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
339 AB8500_IT_LATCH1_REG + regoffset, &value);
340 if (status < 0 || value == 0)
62579266
RV		 341 continue;
342
343 do {
88aec4f7 344 int bit = __ffs(value);
62579266
RV		 345 int line = i * 8 + bit;
346
347 handle_nested_irq(ab8500->irq_base + line);
47c16975
MW		 348 value &= ~(1 << bit);
349 } while (value);
62579266
RV		 350 }
351
352 return IRQ_HANDLED;
353}
354
355static int ab8500_irq_init(struct ab8500 *ab8500)
356{
357 int base = ab8500->irq_base;
358 int irq;
2ced445e 359 int num_irqs;
62579266 360
d6255529
LW		 361 if (is_ab9540(ab8500))
362 num_irqs = AB9540_NR_IRQS;
363 else
364 num_irqs = AB8500_NR_IRQS;
2ced445e
LW		 365
366 for (irq = base; irq < base + num_irqs; irq++) {
d5bb1221
TG		 367 irq_set_chip_data(irq, ab8500);
368 irq_set_chip_and_handler(irq, &ab8500_irq_chip,
62579266 369 handle_simple_irq);
d5bb1221 370 irq_set_nested_thread(irq, 1);
62579266
RV		 371#ifdef CONFIG_ARM
372 set_irq_flags(irq, IRQF_VALID);
373#else
d5bb1221 374 irq_set_noprobe(irq);
62579266
RV		 375#endif
376 }
377
378 return 0;
379}
380
381static void ab8500_irq_remove(struct ab8500 *ab8500)
382{
383 int base = ab8500->irq_base;
384 int irq;
2ced445e
LW		 385 int num_irqs;
386
d6255529
LW		 387 if (is_ab9540(ab8500))
388 num_irqs = AB9540_NR_IRQS;
389 else
390 num_irqs = AB8500_NR_IRQS;
62579266 391
2ced445e 392 for (irq = base; irq < base + num_irqs; irq++) {
62579266
RV		 393#ifdef CONFIG_ARM
394 set_irq_flags(irq, 0);
395#endif
d5bb1221
TG		 396 irq_set_chip_and_handler(irq, NULL, NULL);
397 irq_set_chip_data(irq, NULL);
62579266
RV		 398 }
399}
400
d6255529 401/* AB8500 GPIO Resources */
5cef8df5 402static struct resource __devinitdata ab8500_gpio_resources[] = {
0cb3fcd7
BB		 403 {
404 .name = "GPIO_INT6",
405 .start = AB8500_INT_GPIO6R,
406 .end = AB8500_INT_GPIO41F,
407 .flags = IORESOURCE_IRQ,
408 }
409};
410
d6255529
LW		 411/* AB9540 GPIO Resources */
412static struct resource __devinitdata ab9540_gpio_resources[] = {
413 {
414 .name = "GPIO_INT6",
415 .start = AB8500_INT_GPIO6R,
416 .end = AB8500_INT_GPIO41F,
417 .flags = IORESOURCE_IRQ,
418 },
419 {
420 .name = "GPIO_INT14",
421 .start = AB9540_INT_GPIO50R,
422 .end = AB9540_INT_GPIO54R,
423 .flags = IORESOURCE_IRQ,
424 },
425 {
426 .name = "GPIO_INT15",
427 .start = AB9540_INT_GPIO50F,
428 .end = AB9540_INT_GPIO54F,
429 .flags = IORESOURCE_IRQ,
430 }
431};
432
5cef8df5 433static struct resource __devinitdata ab8500_gpadc_resources[] = {
62579266
RV		 434 {
435 .name = "HW_CONV_END",
436 .start = AB8500_INT_GP_HW_ADC_CONV_END,
437 .end = AB8500_INT_GP_HW_ADC_CONV_END,
438 .flags = IORESOURCE_IRQ,
439 },
440 {
441 .name = "SW_CONV_END",
442 .start = AB8500_INT_GP_SW_ADC_CONV_END,
443 .end = AB8500_INT_GP_SW_ADC_CONV_END,
444 .flags = IORESOURCE_IRQ,
445 },
446};
447
5cef8df5 448static struct resource __devinitdata ab8500_rtc_resources[] = {
62579266
RV		 449 {
450 .name = "60S",
451 .start = AB8500_INT_RTC_60S,
452 .end = AB8500_INT_RTC_60S,
453 .flags = IORESOURCE_IRQ,
454 },
455 {
456 .name = "ALARM",
457 .start = AB8500_INT_RTC_ALARM,
458 .end = AB8500_INT_RTC_ALARM,
459 .flags = IORESOURCE_IRQ,
460 },
461};
462
5cef8df5 463static struct resource __devinitdata ab8500_poweronkey_db_resources[] = {
77686517
SI		 464 {
465 .name = "ONKEY_DBF",
466 .start = AB8500_INT_PON_KEY1DB_F,
467 .end = AB8500_INT_PON_KEY1DB_F,
468 .flags = IORESOURCE_IRQ,
469 },
470 {
471 .name = "ONKEY_DBR",
472 .start = AB8500_INT_PON_KEY1DB_R,
473 .end = AB8500_INT_PON_KEY1DB_R,
474 .flags = IORESOURCE_IRQ,
475 },
476};
477
6af75ecd 478static struct resource __devinitdata ab8500_av_acc_detect_resources[] = {
e098aded 479 {
6af75ecd
LW		 480 .name = "ACC_DETECT_1DB_F",
481 .start = AB8500_INT_ACC_DETECT_1DB_F,
482 .end = AB8500_INT_ACC_DETECT_1DB_F,
483 .flags = IORESOURCE_IRQ,
e098aded
MW		 484 },
485 {
6af75ecd
LW		 486 .name = "ACC_DETECT_1DB_R",
487 .start = AB8500_INT_ACC_DETECT_1DB_R,
488 .end = AB8500_INT_ACC_DETECT_1DB_R,
489 .flags = IORESOURCE_IRQ,
490 },
491 {
492 .name = "ACC_DETECT_21DB_F",
493 .start = AB8500_INT_ACC_DETECT_21DB_F,
494 .end = AB8500_INT_ACC_DETECT_21DB_F,
495 .flags = IORESOURCE_IRQ,
496 },
497 {
498 .name = "ACC_DETECT_21DB_R",
499 .start = AB8500_INT_ACC_DETECT_21DB_R,
500 .end = AB8500_INT_ACC_DETECT_21DB_R,
501 .flags = IORESOURCE_IRQ,
502 },
503 {
504 .name = "ACC_DETECT_22DB_F",
505 .start = AB8500_INT_ACC_DETECT_22DB_F,
506 .end = AB8500_INT_ACC_DETECT_22DB_F,
507 .flags = IORESOURCE_IRQ,
e098aded 508 },
6af75ecd
LW		 509 {
510 .name = "ACC_DETECT_22DB_R",
511 .start = AB8500_INT_ACC_DETECT_22DB_R,
512 .end = AB8500_INT_ACC_DETECT_22DB_R,
513 .flags = IORESOURCE_IRQ,
514 },
515};
516
517static struct resource __devinitdata ab8500_charger_resources[] = {
e098aded
MW		 518 {
519 .name = "MAIN_CH_UNPLUG_DET",
520 .start = AB8500_INT_MAIN_CH_UNPLUG_DET,
521 .end = AB8500_INT_MAIN_CH_UNPLUG_DET,
522 .flags = IORESOURCE_IRQ,
523 },
524 {
525 .name = "MAIN_CHARGE_PLUG_DET",
526 .start = AB8500_INT_MAIN_CH_PLUG_DET,
527 .end = AB8500_INT_MAIN_CH_PLUG_DET,
528 .flags = IORESOURCE_IRQ,
529 },
e098aded
MW		 530 {
531 .name = "VBUS_DET_R",
532 .start = AB8500_INT_VBUS_DET_R,
533 .end = AB8500_INT_VBUS_DET_R,
534 .flags = IORESOURCE_IRQ,
535 },
536 {
6af75ecd
LW		 537 .name = "VBUS_DET_F",
538 .start = AB8500_INT_VBUS_DET_F,
539 .end = AB8500_INT_VBUS_DET_F,
e098aded
MW		 540 .flags = IORESOURCE_IRQ,
541 },
542 {
6af75ecd
LW		 543 .name = "USB_LINK_STATUS",
544 .start = AB8500_INT_USB_LINK_STATUS,
545 .end = AB8500_INT_USB_LINK_STATUS,
546 .flags = IORESOURCE_IRQ,
547 },
548 {
549 .name = "USB_CHARGE_DET_DONE",
550 .start = AB8500_INT_USB_CHG_DET_DONE,
551 .end = AB8500_INT_USB_CHG_DET_DONE,
e098aded
MW		 552 .flags = IORESOURCE_IRQ,
553 },
554 {
555 .name = "VBUS_OVV",
556 .start = AB8500_INT_VBUS_OVV,
557 .end = AB8500_INT_VBUS_OVV,
558 .flags = IORESOURCE_IRQ,
559 },
560 {
6af75ecd
LW		 561 .name = "USB_CH_TH_PROT_R",
562 .start = AB8500_INT_USB_CH_TH_PROT_R,
563 .end = AB8500_INT_USB_CH_TH_PROT_R,
e098aded
MW		 564 .flags = IORESOURCE_IRQ,
565 },
566 {
6af75ecd
LW		 567 .name = "USB_CH_TH_PROT_F",
568 .start = AB8500_INT_USB_CH_TH_PROT_F,
569 .end = AB8500_INT_USB_CH_TH_PROT_F,
e098aded
MW		 570 .flags = IORESOURCE_IRQ,
571 },
572 {
6af75ecd
LW		 573 .name = "MAIN_EXT_CH_NOT_OK",
574 .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
575 .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
576 .flags = IORESOURCE_IRQ,
577 },
578 {
579 .name = "MAIN_CH_TH_PROT_R",
580 .start = AB8500_INT_MAIN_CH_TH_PROT_R,
581 .end = AB8500_INT_MAIN_CH_TH_PROT_R,
582 .flags = IORESOURCE_IRQ,
583 },
584 {
585 .name = "MAIN_CH_TH_PROT_F",
586 .start = AB8500_INT_MAIN_CH_TH_PROT_F,
587 .end = AB8500_INT_MAIN_CH_TH_PROT_F,
588 .flags = IORESOURCE_IRQ,
589 },
590 {
591 .name = "USB_CHARGER_NOT_OKR",
592 .start = AB8500_INT_USB_CHARGER_NOT_OK,
593 .end = AB8500_INT_USB_CHARGER_NOT_OK,
594 .flags = IORESOURCE_IRQ,
595 },
596 {
597 .name = "USB_CHARGER_NOT_OKF",
598 .start = AB8500_INT_USB_CHARGER_NOT_OKF,
599 .end = AB8500_INT_USB_CHARGER_NOT_OKF,
600 .flags = IORESOURCE_IRQ,
601 },
602 {
603 .name = "CH_WD_EXP",
604 .start = AB8500_INT_CH_WD_EXP,
605 .end = AB8500_INT_CH_WD_EXP,
606 .flags = IORESOURCE_IRQ,
607 },
608};
609
610static struct resource __devinitdata ab8500_btemp_resources[] = {
611 {
612 .name = "BAT_CTRL_INDB",
613 .start = AB8500_INT_BAT_CTRL_INDB,
614 .end = AB8500_INT_BAT_CTRL_INDB,
e098aded
MW		 615 .flags = IORESOURCE_IRQ,
616 },
617 {
618 .name = "BTEMP_LOW",
619 .start = AB8500_INT_BTEMP_LOW,
620 .end = AB8500_INT_BTEMP_LOW,
621 .flags = IORESOURCE_IRQ,
622 },
623 {
624 .name = "BTEMP_HIGH",
625 .start = AB8500_INT_BTEMP_HIGH,
626 .end = AB8500_INT_BTEMP_HIGH,
627 .flags = IORESOURCE_IRQ,
628 },
629 {
6af75ecd
LW		 630 .name = "BTEMP_LOW_MEDIUM",
631 .start = AB8500_INT_BTEMP_LOW_MEDIUM,
632 .end = AB8500_INT_BTEMP_LOW_MEDIUM,
e098aded
MW		 633 .flags = IORESOURCE_IRQ,
634 },
635 {
6af75ecd
LW		 636 .name = "BTEMP_MEDIUM_HIGH",
637 .start = AB8500_INT_BTEMP_MEDIUM_HIGH,
638 .end = AB8500_INT_BTEMP_MEDIUM_HIGH,
e098aded
MW		 639 .flags = IORESOURCE_IRQ,
640 },
6af75ecd
LW		 641};
642
643static struct resource __devinitdata ab8500_fg_resources[] = {
e098aded 644 {
6af75ecd
LW		 645 .name = "NCONV_ACCU",
646 .start = AB8500_INT_CCN_CONV_ACC,
647 .end = AB8500_INT_CCN_CONV_ACC,
e098aded
MW		 648 .flags = IORESOURCE_IRQ,
649 },
650 {
6af75ecd
LW		 651 .name = "BATT_OVV",
652 .start = AB8500_INT_BATT_OVV,
653 .end = AB8500_INT_BATT_OVV,
e098aded
MW		 654 .flags = IORESOURCE_IRQ,
655 },
656 {
6af75ecd
LW		 657 .name = "LOW_BAT_F",
658 .start = AB8500_INT_LOW_BAT_F,
659 .end = AB8500_INT_LOW_BAT_F,
660 .flags = IORESOURCE_IRQ,
661 },
662 {
663 .name = "LOW_BAT_R",
664 .start = AB8500_INT_LOW_BAT_R,
665 .end = AB8500_INT_LOW_BAT_R,
666 .flags = IORESOURCE_IRQ,
667 },
668 {
669 .name = "CC_INT_CALIB",
670 .start = AB8500_INT_CC_INT_CALIB,
671 .end = AB8500_INT_CC_INT_CALIB,
e098aded
MW		 672 .flags = IORESOURCE_IRQ,
673 },
674};
675
6af75ecd
LW		 676static struct resource __devinitdata ab8500_chargalg_resources[] = {};
677
df720647 678#ifdef CONFIG_DEBUG_FS
5cef8df5 679static struct resource __devinitdata ab8500_debug_resources[] = {
e098aded
MW		 680 {
681 .name = "IRQ_FIRST",
682 .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
683 .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
684 .flags = IORESOURCE_IRQ,
685 },
686 {
687 .name = "IRQ_LAST",
688 .start = AB8500_INT_USB_CHARGER_NOT_OKF,
689 .end = AB8500_INT_USB_CHARGER_NOT_OKF,
690 .flags = IORESOURCE_IRQ,
691 },
692};
df720647 693#endif
e098aded 694
5cef8df5 695static struct resource __devinitdata ab8500_usb_resources[] = {
e098aded
MW		 696 {
697 .name = "ID_WAKEUP_R",
698 .start = AB8500_INT_ID_WAKEUP_R,
699 .end = AB8500_INT_ID_WAKEUP_R,
700 .flags = IORESOURCE_IRQ,
701 },
702 {
703 .name = "ID_WAKEUP_F",
704 .start = AB8500_INT_ID_WAKEUP_F,
705 .end = AB8500_INT_ID_WAKEUP_F,
706 .flags = IORESOURCE_IRQ,
707 },
708 {
709 .name = "VBUS_DET_F",
710 .start = AB8500_INT_VBUS_DET_F,
711 .end = AB8500_INT_VBUS_DET_F,
712 .flags = IORESOURCE_IRQ,
713 },
714 {
715 .name = "VBUS_DET_R",
716 .start = AB8500_INT_VBUS_DET_R,
717 .end = AB8500_INT_VBUS_DET_R,
718 .flags = IORESOURCE_IRQ,
719 },
92d50a41
MW		 720 {
721 .name = "USB_LINK_STATUS",
722 .start = AB8500_INT_USB_LINK_STATUS,
723 .end = AB8500_INT_USB_LINK_STATUS,
724 .flags = IORESOURCE_IRQ,
725 },
6af75ecd
LW		 726 {
727 .name = "USB_ADP_PROBE_PLUG",
728 .start = AB8500_INT_ADP_PROBE_PLUG,
729 .end = AB8500_INT_ADP_PROBE_PLUG,
730 .flags = IORESOURCE_IRQ,
731 },
732 {
733 .name = "USB_ADP_PROBE_UNPLUG",
734 .start = AB8500_INT_ADP_PROBE_UNPLUG,
735 .end = AB8500_INT_ADP_PROBE_UNPLUG,
736 .flags = IORESOURCE_IRQ,
737 },
e098aded
MW		 738};
739
5cef8df5 740static struct resource __devinitdata ab8500_temp_resources[] = {
e098aded
MW		 741 {
742 .name = "AB8500_TEMP_WARM",
743 .start = AB8500_INT_TEMP_WARM,
744 .end = AB8500_INT_TEMP_WARM,
745 .flags = IORESOURCE_IRQ,
746 },
747};
748
d6255529 749static struct mfd_cell __devinitdata abx500_common_devs[] = {
5814fc35
MW		 750#ifdef CONFIG_DEBUG_FS
751 {
752 .name = "ab8500-debug",
e098aded
MW		 753 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
754 .resources = ab8500_debug_resources,
5814fc35
MW		 755 },
756#endif
e098aded
MW		 757 {
758 .name = "ab8500-sysctrl",
759 },
760 {
761 .name = "ab8500-regulator",
762 },
62579266
RV		 763 {
764 .name = "ab8500-gpadc",
765 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
766 .resources = ab8500_gpadc_resources,
767 },
768 {
769 .name = "ab8500-rtc",
770 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
771 .resources = ab8500_rtc_resources,
772 },
e098aded 773 {
6af75ecd
LW		 774 .name = "ab8500-charger",
775 .num_resources = ARRAY_SIZE(ab8500_charger_resources),
776 .resources = ab8500_charger_resources,
777 },
778 {
779 .name = "ab8500-btemp",
780 .num_resources = ARRAY_SIZE(ab8500_btemp_resources),
781 .resources = ab8500_btemp_resources,
782 },
783 {
784 .name = "ab8500-fg",
785 .num_resources = ARRAY_SIZE(ab8500_fg_resources),
786 .resources = ab8500_fg_resources,
787 },
788 {
789 .name = "ab8500-chargalg",
790 .num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
791 .resources = ab8500_chargalg_resources,
792 },
793 {
794 .name = "ab8500-acc-det",
795 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
796 .resources = ab8500_av_acc_detect_resources,
797 },
798 {
799 .name = "ab8500-codec",
e098aded 800 },
d6255529 801
e098aded
MW		 802 {
803 .name = "ab8500-poweron-key",
804 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
805 .resources = ab8500_poweronkey_db_resources,
806 },
f0f05b1c
AM		 807 {
808 .name = "ab8500-pwm",
809 .id = 1,
810 },
811 {
812 .name = "ab8500-pwm",
813 .id = 2,
814 },
815 {
816 .name = "ab8500-pwm",
817 .id = 3,
818 },
e098aded 819 { .name = "ab8500-leds", },
77686517 820 {
e098aded
MW		 821 .name = "ab8500-denc",
822 },
823 {
824 .name = "ab8500-temp",
825 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
826 .resources = ab8500_temp_resources,
77686517 827 },
62579266
RV		 828};
829
d6255529
LW		 830static struct mfd_cell __devinitdata ab8500_devs[] = {
831 {
832 .name = "ab8500-gpio",
833 .num_resources = ARRAY_SIZE(ab8500_gpio_resources),
834 .resources = ab8500_gpio_resources,
835 },
836 {
837 .name = "ab8500-usb",
838 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
839 .resources = ab8500_usb_resources,
840 },
841};
842
843static struct mfd_cell __devinitdata ab9540_devs[] = {
844 {
845 .name = "ab8500-gpio",
846 .num_resources = ARRAY_SIZE(ab9540_gpio_resources),
847 .resources = ab9540_gpio_resources,
848 },
849 {
850 .name = "ab9540-usb",
851 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
852 .resources = ab8500_usb_resources,
853 },
854};
855
cca69b67
MW		 856static ssize_t show_chip_id(struct device *dev,
857 struct device_attribute *attr, char *buf)
858{
859 struct ab8500 *ab8500;
860
861 ab8500 = dev_get_drvdata(dev);
862 return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
863}
864
e5c238c3
MW		 865/*
866 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
867 * 0x01 Swoff bit programming
868 * 0x02 Thermal protection activation
869 * 0x04 Vbat lower then BattOk falling threshold
870 * 0x08 Watchdog expired
871 * 0x10 Non presence of 32kHz clock
872 * 0x20 Battery level lower than power on reset threshold
873 * 0x40 Power on key 1 pressed longer than 10 seconds
874 * 0x80 DB8500 thermal shutdown
875 */
876static ssize_t show_switch_off_status(struct device *dev,
877 struct device_attribute *attr, char *buf)
878{
879 int ret;
880 u8 value;
881 struct ab8500 *ab8500;
882
883 ab8500 = dev_get_drvdata(dev);
884 ret = get_register_interruptible(ab8500, AB8500_RTC,
885 AB8500_SWITCH_OFF_STATUS, &value);
886 if (ret < 0)
887 return ret;
888 return sprintf(buf, "%#x\n", value);
889}
890
b4a31037
AL		 891/*
892 * ab8500 has turned on due to (TURN_ON_STATUS):
893 * 0x01 PORnVbat
894 * 0x02 PonKey1dbF
895 * 0x04 PonKey2dbF
896 * 0x08 RTCAlarm
897 * 0x10 MainChDet
898 * 0x20 VbusDet
899 * 0x40 UsbIDDetect
900 * 0x80 Reserved
901 */
902static ssize_t show_turn_on_status(struct device *dev,
903 struct device_attribute *attr, char *buf)
904{
905 int ret;
906 u8 value;
907 struct ab8500 *ab8500;
908
909 ab8500 = dev_get_drvdata(dev);
910 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
911 AB8500_TURN_ON_STATUS, &value);
912 if (ret < 0)
913 return ret;
914 return sprintf(buf, "%#x\n", value);
915}
916
d6255529
LW		 917static ssize_t show_ab9540_dbbrstn(struct device *dev,
918 struct device_attribute *attr, char *buf)
919{
920 struct ab8500 *ab8500;
921 int ret;
922 u8 value;
923
924 ab8500 = dev_get_drvdata(dev);
925
926 ret = get_register_interruptible(ab8500, AB8500_REGU_CTRL2,
927 AB9540_MODEM_CTRL2_REG, &value);
928 if (ret < 0)
929 return ret;
930
931 return sprintf(buf, "%d\n",
932 (value & AB9540_MODEM_CTRL2_SWDBBRSTN_BIT) ? 1 : 0);
933}
934
935static ssize_t store_ab9540_dbbrstn(struct device *dev,
936 struct device_attribute *attr, const char *buf, size_t count)
937{
938 struct ab8500 *ab8500;
939 int ret = count;
940 int err;
941 u8 bitvalues;
942
943 ab8500 = dev_get_drvdata(dev);
944
945 if (count > 0) {
946 switch (buf[0]) {
947 case '0':
948 bitvalues = 0;
949 break;
950 case '1':
951 bitvalues = AB9540_MODEM_CTRL2_SWDBBRSTN_BIT;
952 break;
953 default:
954 goto exit;
955 }
956
957 err = mask_and_set_register_interruptible(ab8500,
958 AB8500_REGU_CTRL2, AB9540_MODEM_CTRL2_REG,
959 AB9540_MODEM_CTRL2_SWDBBRSTN_BIT, bitvalues);
960 if (err)
961 dev_info(ab8500->dev,
962 "Failed to set DBBRSTN %c, err %#x\n",
963 buf[0], err);
964 }
965
966exit:
967 return ret;
968}
969
cca69b67 970static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);
e5c238c3 971static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);
b4a31037 972static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL);
d6255529
LW		 973static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,
974 show_ab9540_dbbrstn, store_ab9540_dbbrstn);
cca69b67
MW		 975
976static struct attribute *ab8500_sysfs_entries[] = {
977 &dev_attr_chip_id.attr,
e5c238c3 978 &dev_attr_switch_off_status.attr,
b4a31037 979 &dev_attr_turn_on_status.attr,
cca69b67
MW		 980 NULL,
981};
982
d6255529
LW		 983static struct attribute *ab9540_sysfs_entries[] = {
984 &dev_attr_chip_id.attr,
985 &dev_attr_switch_off_status.attr,
986 &dev_attr_turn_on_status.attr,
987 &dev_attr_dbbrstn.attr,
988 NULL,
989};
990
cca69b67
MW		 991static struct attribute_group ab8500_attr_group = {
992 .attrs = ab8500_sysfs_entries,
993};
994
d6255529
LW		 995static struct attribute_group ab9540_attr_group = {
996 .attrs = ab9540_sysfs_entries,
997};
998
0f620837 999int __devinit ab8500_init(struct ab8500 *ab8500, enum ab8500_version version)
62579266
RV		 1000{
1001 struct ab8500_platform_data *plat = dev_get_platdata(ab8500->dev);
1002 int ret;
1003 int i;
47c16975 1004 u8 value;
62579266
RV		 1005
1006 if (plat)
1007 ab8500->irq_base = plat->irq_base;
1008
1009 mutex_init(&ab8500->lock);
1010 mutex_init(&ab8500->irq_lock);
1011
0f620837
LW		 1012 if (version != AB8500_VERSION_UNDEFINED)
1013 ab8500->version = version;
1014 else {
1015 ret = get_register_interruptible(ab8500, AB8500_MISC,
1016 AB8500_IC_NAME_REG, &value);
1017 if (ret < 0)
1018 return ret;
1019
1020 ab8500->version = value;
1021 }
1022
47c16975
MW		 1023 ret = get_register_interruptible(ab8500, AB8500_MISC,
1024 AB8500_REV_REG, &value);
62579266
RV		 1025 if (ret < 0)
1026 return ret;
1027
47c16975 1028 ab8500->chip_id = value;
62579266 1029
0f620837
LW		 1030 dev_info(ab8500->dev, "detected chip, %s rev. %1x.%1x\n",
1031 ab8500_version_str[ab8500->version],
1032 ab8500->chip_id >> 4,
1033 ab8500->chip_id & 0x0F);
1034
d6255529
LW		 1035 /* Configure AB8500 or AB9540 IRQ */
1036 if (is_ab9540(ab8500)) {
1037 ab8500->mask_size = AB9540_NUM_IRQ_REGS;
1038 ab8500->irq_reg_offset = ab9540_irq_regoffset;
1039 } else {
1040 ab8500->mask_size = AB8500_NUM_IRQ_REGS;
1041 ab8500->irq_reg_offset = ab8500_irq_regoffset;
1042 }
2ced445e
LW		 1043 ab8500->mask = kzalloc(ab8500->mask_size, GFP_KERNEL);
1044 if (!ab8500->mask)
1045 return -ENOMEM;
1046 ab8500->oldmask = kzalloc(ab8500->mask_size, GFP_KERNEL);
1047 if (!ab8500->oldmask) {
1048 ret = -ENOMEM;
1049 goto out_freemask;
1050 }
e5c238c3
MW		 1051 /*
1052 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1053 * 0x01 Swoff bit programming
1054 * 0x02 Thermal protection activation
1055 * 0x04 Vbat lower then BattOk falling threshold
1056 * 0x08 Watchdog expired
1057 * 0x10 Non presence of 32kHz clock
1058 * 0x20 Battery level lower than power on reset threshold
1059 * 0x40 Power on key 1 pressed longer than 10 seconds
1060 * 0x80 DB8500 thermal shutdown
1061 */
1062
1063 ret = get_register_interruptible(ab8500, AB8500_RTC,
1064 AB8500_SWITCH_OFF_STATUS, &value);
1065 if (ret < 0)
1066 return ret;
1067 dev_info(ab8500->dev, "switch off status: %#x", value);
1068
62579266
RV		 1069 if (plat && plat->init)
1070 plat->init(ab8500);
1071
1072 /* Clear and mask all interrupts */
2ced445e 1073 for (i = 0; i < ab8500->mask_size; i++) {
0f620837
LW		 1074 /*
1075 * Interrupt register 12 doesn't exist prior to AB8500 version
1076 * 2.0
1077 */
1078 if (ab8500->irq_reg_offset[i] == 11 &&
1079 is_ab8500_1p1_or_earlier(ab8500))
92d50a41 1080 continue;
62579266 1081
47c16975 1082 get_register_interruptible(ab8500, AB8500_INTERRUPT,
2ced445e 1083 AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i],
92d50a41 1084 &value);
47c16975 1085 set_register_interruptible(ab8500, AB8500_INTERRUPT,
2ced445e 1086 AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i], 0xff);
62579266
RV		 1087 }
1088
47c16975
MW		 1089 ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
1090 if (ret)
2ced445e 1091 goto out_freeoldmask;
47c16975 1092
2ced445e 1093 for (i = 0; i < ab8500->mask_size; i++)
62579266
RV		 1094 ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
1095
1096 if (ab8500->irq_base) {
1097 ret = ab8500_irq_init(ab8500);
1098 if (ret)
2ced445e 1099 goto out_freeoldmask;
62579266
RV		 1100
1101 ret = request_threaded_irq(ab8500->irq, NULL, ab8500_irq,
4f079985
MW		 1102 IRQF_ONESHOT | IRQF_NO_SUSPEND,
1103 "ab8500", ab8500);
62579266
RV		 1104 if (ret)
1105 goto out_removeirq;
1106 }
1107
d6255529
LW		 1108 ret = mfd_add_devices(ab8500->dev, 0, abx500_common_devs,
1109 ARRAY_SIZE(abx500_common_devs), NULL,
1110 ab8500->irq_base);
1111
1112 if (ret)
1113 goto out_freeirq;
1114
1115 if (is_ab9540(ab8500))
1116 ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
1117 ARRAY_SIZE(ab9540_devs), NULL,
1118 ab8500->irq_base);
1119 else
1120 ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
1121 ARRAY_SIZE(ab9540_devs), NULL,
62579266
RV		 1122 ab8500->irq_base);
1123 if (ret)
1124 goto out_freeirq;
1125
d6255529
LW		 1126 if (is_ab9540(ab8500))
1127 ret = sysfs_create_group(&ab8500->dev->kobj,
1128 &ab9540_attr_group);
1129 else
1130 ret = sysfs_create_group(&ab8500->dev->kobj,
1131 &ab8500_attr_group);
cca69b67
MW		 1132 if (ret)
1133 dev_err(ab8500->dev, "error creating sysfs entries\n");
d6255529
LW		 1134 else
1135 return ret;
62579266
RV		 1136
1137out_freeirq:
6d95b7fd 1138 if (ab8500->irq_base)
62579266
RV		 1139 free_irq(ab8500->irq, ab8500);
1140out_removeirq:
6d95b7fd 1141 if (ab8500->irq_base)
62579266 1142 ab8500_irq_remove(ab8500);
2ced445e
LW		 1143out_freeoldmask:
1144 kfree(ab8500->oldmask);
1145out_freemask:
1146 kfree(ab8500->mask);
6d95b7fd 1147
62579266
RV		 1148 return ret;
1149}
1150
1151int __devexit ab8500_exit(struct ab8500 *ab8500)
1152{
d6255529
LW		 1153 if (is_ab9540(ab8500))
1154 sysfs_remove_group(&ab8500->dev->kobj, &ab9540_attr_group);
1155 else
1156 sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group);
62579266
RV		 1157 mfd_remove_devices(ab8500->dev);
1158 if (ab8500->irq_base) {
1159 free_irq(ab8500->irq, ab8500);
1160 ab8500_irq_remove(ab8500);
1161 }
2ced445e
LW		 1162 kfree(ab8500->oldmask);
1163 kfree(ab8500->mask);
62579266
RV		 1164
1165 return 0;
1166}
1167
adceed62 1168MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent");
62579266
RV		 1169MODULE_DESCRIPTION("AB8500 MFD core");
1170MODULE_LICENSE("GPL v2");
kernel source for telekom puls (alcatel/mediatek)