2 * Copyright (C) ST-Ericsson SA 2010
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>
10 #include <linux/kernel.h>
11 #include <linux/slab.h>
12 #include <linux/init.h>
13 #include <linux/irq.h>
14 #include <linux/delay.h>
15 #include <linux/interrupt.h>
16 #include <linux/module.h>
17 #include <linux/platform_device.h>
18 #include <linux/mfd/core.h>
19 #include <linux/mfd/abx500.h>
20 #include <linux/mfd/abx500/ab8500.h>
21 #include <linux/mfd/dbx500-prcmu.h>
22 #include <linux/regulator/ab8500.h>
24 #include <linux/of_device.h>
27 * Interrupt register offsets
30 #define AB8500_IT_SOURCE1_REG 0x00
31 #define AB8500_IT_SOURCE2_REG 0x01
32 #define AB8500_IT_SOURCE3_REG 0x02
33 #define AB8500_IT_SOURCE4_REG 0x03
34 #define AB8500_IT_SOURCE5_REG 0x04
35 #define AB8500_IT_SOURCE6_REG 0x05
36 #define AB8500_IT_SOURCE7_REG 0x06
37 #define AB8500_IT_SOURCE8_REG 0x07
38 #define AB9540_IT_SOURCE13_REG 0x0C
39 #define AB8500_IT_SOURCE19_REG 0x12
40 #define AB8500_IT_SOURCE20_REG 0x13
41 #define AB8500_IT_SOURCE21_REG 0x14
42 #define AB8500_IT_SOURCE22_REG 0x15
43 #define AB8500_IT_SOURCE23_REG 0x16
44 #define AB8500_IT_SOURCE24_REG 0x17
49 #define AB8500_IT_LATCH1_REG 0x20
50 #define AB8500_IT_LATCH2_REG 0x21
51 #define AB8500_IT_LATCH3_REG 0x22
52 #define AB8500_IT_LATCH4_REG 0x23
53 #define AB8500_IT_LATCH5_REG 0x24
54 #define AB8500_IT_LATCH6_REG 0x25
55 #define AB8500_IT_LATCH7_REG 0x26
56 #define AB8500_IT_LATCH8_REG 0x27
57 #define AB8500_IT_LATCH9_REG 0x28
58 #define AB8500_IT_LATCH10_REG 0x29
59 #define AB8500_IT_LATCH12_REG 0x2B
60 #define AB9540_IT_LATCH13_REG 0x2C
61 #define AB8500_IT_LATCH19_REG 0x32
62 #define AB8500_IT_LATCH20_REG 0x33
63 #define AB8500_IT_LATCH21_REG 0x34
64 #define AB8500_IT_LATCH22_REG 0x35
65 #define AB8500_IT_LATCH23_REG 0x36
66 #define AB8500_IT_LATCH24_REG 0x37
72 #define AB8500_IT_MASK1_REG 0x40
73 #define AB8500_IT_MASK2_REG 0x41
74 #define AB8500_IT_MASK3_REG 0x42
75 #define AB8500_IT_MASK4_REG 0x43
76 #define AB8500_IT_MASK5_REG 0x44
77 #define AB8500_IT_MASK6_REG 0x45
78 #define AB8500_IT_MASK7_REG 0x46
79 #define AB8500_IT_MASK8_REG 0x47
80 #define AB8500_IT_MASK9_REG 0x48
81 #define AB8500_IT_MASK10_REG 0x49
82 #define AB8500_IT_MASK11_REG 0x4A
83 #define AB8500_IT_MASK12_REG 0x4B
84 #define AB8500_IT_MASK13_REG 0x4C
85 #define AB8500_IT_MASK14_REG 0x4D
86 #define AB8500_IT_MASK15_REG 0x4E
87 #define AB8500_IT_MASK16_REG 0x4F
88 #define AB8500_IT_MASK17_REG 0x50
89 #define AB8500_IT_MASK18_REG 0x51
90 #define AB8500_IT_MASK19_REG 0x52
91 #define AB8500_IT_MASK20_REG 0x53
92 #define AB8500_IT_MASK21_REG 0x54
93 #define AB8500_IT_MASK22_REG 0x55
94 #define AB8500_IT_MASK23_REG 0x56
95 #define AB8500_IT_MASK24_REG 0x57
98 * latch hierarchy registers
100 #define AB8500_IT_LATCHHIER1_REG 0x60
101 #define AB8500_IT_LATCHHIER2_REG 0x61
102 #define AB8500_IT_LATCHHIER3_REG 0x62
104 #define AB8500_IT_LATCHHIER_NUM 3
106 #define AB8500_REV_REG 0x80
107 #define AB8500_IC_NAME_REG 0x82
108 #define AB8500_SWITCH_OFF_STATUS 0x00
110 #define AB8500_TURN_ON_STATUS 0x00
112 static bool no_bm; /* No battery management */
113 module_param(no_bm, bool, S_IRUGO);
115 #define AB9540_MODEM_CTRL2_REG 0x23
116 #define AB9540_MODEM_CTRL2_SWDBBRSTN_BIT BIT(2)
119 * Map interrupt numbers to the LATCH and MASK register offsets, Interrupt
120 * numbers are indexed into this array with (num / 8). The interupts are
121 * defined in linux/mfd/ab8500.h
123 * This is one off from the register names, i.e. AB8500_IT_MASK1_REG is at
127 static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = {
128 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21,
132 static const int ab9540_irq_regoffset[AB9540_NUM_IRQ_REGS] = {
133 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24,
136 static const char ab8500_version_str[][7] = {
137 [AB8500_VERSION_AB8500] = "AB8500",
138 [AB8500_VERSION_AB8505] = "AB8505",
139 [AB8500_VERSION_AB9540] = "AB9540",
140 [AB8500_VERSION_AB8540] = "AB8540",
143 static int ab8500_i2c_write(struct ab8500 *ab8500, u16 addr, u8 data)
147 ret = prcmu_abb_write((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
149 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
153 static int ab8500_i2c_write_masked(struct ab8500 *ab8500, u16 addr, u8 mask,
158 ret = prcmu_abb_write_masked((u8)(addr >> 8), (u8)(addr & 0xFF), &data,
161 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
165 static int ab8500_i2c_read(struct ab8500 *ab8500, u16 addr)
170 ret = prcmu_abb_read((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
172 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
178 static int ab8500_get_chip_id(struct device *dev)
180 struct ab8500 *ab8500;
184 ab8500 = dev_get_drvdata(dev->parent);
185 return ab8500 ? (int)ab8500->chip_id : -EINVAL;
188 static int set_register_interruptible(struct ab8500 *ab8500, u8 bank,
193 * Put the u8 bank and u8 register together into a an u16.
194 * The bank on higher 8 bits and register in lower 8 bits.
196 u16 addr = ((u16)bank) << 8 | reg;
198 dev_vdbg(ab8500->dev, "wr: addr %#x <= %#x\n", addr, data);
200 mutex_lock(&ab8500->lock);
202 ret = ab8500->write(ab8500, addr, data);
204 dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
206 mutex_unlock(&ab8500->lock);
211 static int ab8500_set_register(struct device *dev, u8 bank,
215 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
217 atomic_inc(&ab8500->transfer_ongoing);
218 ret = set_register_interruptible(ab8500, bank, reg, value);
219 atomic_dec(&ab8500->transfer_ongoing);
223 static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
227 /* put the u8 bank and u8 reg together into a an u16.
228 * bank on higher 8 bits and reg in lower */
229 u16 addr = ((u16)bank) << 8 | reg;
231 mutex_lock(&ab8500->lock);
233 ret = ab8500->read(ab8500, addr);
235 dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
240 mutex_unlock(&ab8500->lock);
241 dev_vdbg(ab8500->dev, "rd: addr %#x => data %#x\n", addr, ret);
246 static int ab8500_get_register(struct device *dev, u8 bank,
250 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
252 atomic_inc(&ab8500->transfer_ongoing);
253 ret = get_register_interruptible(ab8500, bank, reg, value);
254 atomic_dec(&ab8500->transfer_ongoing);
258 static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank,
259 u8 reg, u8 bitmask, u8 bitvalues)
262 /* put the u8 bank and u8 reg together into a an u16.
263 * bank on higher 8 bits and reg in lower */
264 u16 addr = ((u16)bank) << 8 | reg;
266 mutex_lock(&ab8500->lock);
268 if (ab8500->write_masked == NULL) {
271 ret = ab8500->read(ab8500, addr);
273 dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
279 data = (~bitmask & data) | (bitmask & bitvalues);
281 ret = ab8500->write(ab8500, addr, data);
283 dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
286 dev_vdbg(ab8500->dev, "mask: addr %#x => data %#x\n", addr,
290 ret = ab8500->write_masked(ab8500, addr, bitmask, bitvalues);
292 dev_err(ab8500->dev, "failed to modify reg %#x: %d\n", addr,
295 mutex_unlock(&ab8500->lock);
299 static int ab8500_mask_and_set_register(struct device *dev,
300 u8 bank, u8 reg, u8 bitmask, u8 bitvalues)
303 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
305 atomic_inc(&ab8500->transfer_ongoing);
306 ret= mask_and_set_register_interruptible(ab8500, bank, reg,
308 atomic_dec(&ab8500->transfer_ongoing);
312 static struct abx500_ops ab8500_ops = {
313 .get_chip_id = ab8500_get_chip_id,
314 .get_register = ab8500_get_register,
315 .set_register = ab8500_set_register,
316 .get_register_page = NULL,
317 .set_register_page = NULL,
318 .mask_and_set_register = ab8500_mask_and_set_register,
319 .event_registers_startup_state_get = NULL,
320 .startup_irq_enabled = NULL,
323 static void ab8500_irq_lock(struct irq_data *data)
325 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
327 mutex_lock(&ab8500->irq_lock);
328 atomic_inc(&ab8500->transfer_ongoing);
331 static void ab8500_irq_sync_unlock(struct irq_data *data)
333 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
336 for (i = 0; i < ab8500->mask_size; i++) {
337 u8 old = ab8500->oldmask[i];
338 u8 new = ab8500->mask[i];
345 * Interrupt register 12 doesn't exist prior to AB8500 version
348 if (ab8500->irq_reg_offset[i] == 11 &&
349 is_ab8500_1p1_or_earlier(ab8500))
352 ab8500->oldmask[i] = new;
354 reg = AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i];
355 set_register_interruptible(ab8500, AB8500_INTERRUPT, reg, new);
357 atomic_dec(&ab8500->transfer_ongoing);
358 mutex_unlock(&ab8500->irq_lock);
361 static void ab8500_irq_mask(struct irq_data *data)
363 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
364 int offset = data->irq - ab8500->irq_base;
365 int index = offset / 8;
366 int mask = 1 << (offset % 8);
368 ab8500->mask[index] |= mask;
371 static void ab8500_irq_unmask(struct irq_data *data)
373 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
374 int offset = data->irq - ab8500->irq_base;
375 int index = offset / 8;
376 int mask = 1 << (offset % 8);
378 ab8500->mask[index] &= ~mask;
381 static struct irq_chip ab8500_irq_chip = {
383 .irq_bus_lock = ab8500_irq_lock,
384 .irq_bus_sync_unlock = ab8500_irq_sync_unlock,
385 .irq_mask = ab8500_irq_mask,
386 .irq_disable = ab8500_irq_mask,
387 .irq_unmask = ab8500_irq_unmask,
390 static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
391 int latch_offset, u8 latch_val)
393 int int_bit = __ffs(latch_val);
397 int_bit = __ffs(latch_val);
399 for (i = 0; i < ab8500->mask_size; i++)
400 if (ab8500->irq_reg_offset[i] == latch_offset)
403 if (i >= ab8500->mask_size) {
404 dev_err(ab8500->dev, "Register offset 0x%2x not declared\n",
409 line = (i << 3) + int_bit;
410 latch_val &= ~(1 << int_bit);
412 handle_nested_irq(ab8500->irq_base + line);
418 static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500,
419 int hier_offset, u8 hier_val)
421 int latch_bit, status;
422 u8 latch_offset, latch_val;
425 latch_bit = __ffs(hier_val);
426 latch_offset = (hier_offset << 3) + latch_bit;
428 /* Fix inconsistent ITFromLatch25 bit mapping... */
429 if (unlikely(latch_offset == 17))
432 status = get_register_interruptible(ab8500,
434 AB8500_IT_LATCH1_REG + latch_offset,
436 if (status < 0 || latch_val == 0)
439 status = ab8500_handle_hierarchical_line(ab8500,
440 latch_offset, latch_val);
444 hier_val &= ~(1 << latch_bit);
450 static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev)
452 struct ab8500 *ab8500 = dev;
455 dev_vdbg(ab8500->dev, "interrupt\n");
457 /* Hierarchical interrupt version */
458 for (i = 0; i < AB8500_IT_LATCHHIER_NUM; i++) {
462 status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
463 AB8500_IT_LATCHHIER1_REG + i, &hier_val);
464 if (status < 0 || hier_val == 0)
467 status = ab8500_handle_hierarchical_latch(ab8500, i, hier_val);
474 static irqreturn_t ab8500_irq(int irq, void *dev)
476 struct ab8500 *ab8500 = dev;
479 dev_vdbg(ab8500->dev, "interrupt\n");
481 atomic_inc(&ab8500->transfer_ongoing);
483 for (i = 0; i < ab8500->mask_size; i++) {
484 int regoffset = ab8500->irq_reg_offset[i];
489 * Interrupt register 12 doesn't exist prior to AB8500 version
492 if (regoffset == 11 && is_ab8500_1p1_or_earlier(ab8500))
495 status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
496 AB8500_IT_LATCH1_REG + regoffset, &value);
497 if (status < 0 || value == 0)
501 int bit = __ffs(value);
502 int line = i * 8 + bit;
504 handle_nested_irq(ab8500->irq_base + line);
505 value &= ~(1 << bit);
509 atomic_dec(&ab8500->transfer_ongoing);
513 static int ab8500_irq_init(struct ab8500 *ab8500)
515 int base = ab8500->irq_base;
519 if (is_ab9540(ab8500))
520 num_irqs = AB9540_NR_IRQS;
521 else if (is_ab8505(ab8500))
522 num_irqs = AB8505_NR_IRQS;
524 num_irqs = AB8500_NR_IRQS;
526 for (irq = base; irq < base + num_irqs; irq++) {
527 irq_set_chip_data(irq, ab8500);
528 irq_set_chip_and_handler(irq, &ab8500_irq_chip,
530 irq_set_nested_thread(irq, 1);
532 set_irq_flags(irq, IRQF_VALID);
534 irq_set_noprobe(irq);
541 static void ab8500_irq_remove(struct ab8500 *ab8500)
543 int base = ab8500->irq_base;
547 if (is_ab9540(ab8500))
548 num_irqs = AB9540_NR_IRQS;
549 else if (is_ab8505(ab8500))
550 num_irqs = AB8505_NR_IRQS;
552 num_irqs = AB8500_NR_IRQS;
554 for (irq = base; irq < base + num_irqs; irq++) {
556 set_irq_flags(irq, 0);
558 irq_set_chip_and_handler(irq, NULL, NULL);
559 irq_set_chip_data(irq, NULL);
563 int ab8500_suspend(struct ab8500 *ab8500)
565 if (atomic_read(&ab8500->transfer_ongoing))
571 /* AB8500 GPIO Resources */
572 static struct resource __devinitdata ab8500_gpio_resources[] = {
575 .start = AB8500_INT_GPIO6R,
576 .end = AB8500_INT_GPIO41F,
577 .flags = IORESOURCE_IRQ,
581 /* AB9540 GPIO Resources */
582 static struct resource __devinitdata ab9540_gpio_resources[] = {
585 .start = AB8500_INT_GPIO6R,
586 .end = AB8500_INT_GPIO41F,
587 .flags = IORESOURCE_IRQ,
590 .name = "GPIO_INT14",
591 .start = AB9540_INT_GPIO50R,
592 .end = AB9540_INT_GPIO54R,
593 .flags = IORESOURCE_IRQ,
596 .name = "GPIO_INT15",
597 .start = AB9540_INT_GPIO50F,
598 .end = AB9540_INT_GPIO54F,
599 .flags = IORESOURCE_IRQ,
603 static struct resource __devinitdata ab8500_gpadc_resources[] = {
605 .name = "HW_CONV_END",
606 .start = AB8500_INT_GP_HW_ADC_CONV_END,
607 .end = AB8500_INT_GP_HW_ADC_CONV_END,
608 .flags = IORESOURCE_IRQ,
611 .name = "SW_CONV_END",
612 .start = AB8500_INT_GP_SW_ADC_CONV_END,
613 .end = AB8500_INT_GP_SW_ADC_CONV_END,
614 .flags = IORESOURCE_IRQ,
618 static struct resource __devinitdata ab8500_rtc_resources[] = {
621 .start = AB8500_INT_RTC_60S,
622 .end = AB8500_INT_RTC_60S,
623 .flags = IORESOURCE_IRQ,
627 .start = AB8500_INT_RTC_ALARM,
628 .end = AB8500_INT_RTC_ALARM,
629 .flags = IORESOURCE_IRQ,
633 static struct resource __devinitdata ab8500_poweronkey_db_resources[] = {
636 .start = AB8500_INT_PON_KEY1DB_F,
637 .end = AB8500_INT_PON_KEY1DB_F,
638 .flags = IORESOURCE_IRQ,
642 .start = AB8500_INT_PON_KEY1DB_R,
643 .end = AB8500_INT_PON_KEY1DB_R,
644 .flags = IORESOURCE_IRQ,
648 static struct resource __devinitdata ab8500_av_acc_detect_resources[] = {
650 .name = "ACC_DETECT_1DB_F",
651 .start = AB8500_INT_ACC_DETECT_1DB_F,
652 .end = AB8500_INT_ACC_DETECT_1DB_F,
653 .flags = IORESOURCE_IRQ,
656 .name = "ACC_DETECT_1DB_R",
657 .start = AB8500_INT_ACC_DETECT_1DB_R,
658 .end = AB8500_INT_ACC_DETECT_1DB_R,
659 .flags = IORESOURCE_IRQ,
662 .name = "ACC_DETECT_21DB_F",
663 .start = AB8500_INT_ACC_DETECT_21DB_F,
664 .end = AB8500_INT_ACC_DETECT_21DB_F,
665 .flags = IORESOURCE_IRQ,
668 .name = "ACC_DETECT_21DB_R",
669 .start = AB8500_INT_ACC_DETECT_21DB_R,
670 .end = AB8500_INT_ACC_DETECT_21DB_R,
671 .flags = IORESOURCE_IRQ,
674 .name = "ACC_DETECT_22DB_F",
675 .start = AB8500_INT_ACC_DETECT_22DB_F,
676 .end = AB8500_INT_ACC_DETECT_22DB_F,
677 .flags = IORESOURCE_IRQ,
680 .name = "ACC_DETECT_22DB_R",
681 .start = AB8500_INT_ACC_DETECT_22DB_R,
682 .end = AB8500_INT_ACC_DETECT_22DB_R,
683 .flags = IORESOURCE_IRQ,
687 static struct resource __devinitdata ab8500_charger_resources[] = {
689 .name = "MAIN_CH_UNPLUG_DET",
690 .start = AB8500_INT_MAIN_CH_UNPLUG_DET,
691 .end = AB8500_INT_MAIN_CH_UNPLUG_DET,
692 .flags = IORESOURCE_IRQ,
695 .name = "MAIN_CHARGE_PLUG_DET",
696 .start = AB8500_INT_MAIN_CH_PLUG_DET,
697 .end = AB8500_INT_MAIN_CH_PLUG_DET,
698 .flags = IORESOURCE_IRQ,
701 .name = "VBUS_DET_R",
702 .start = AB8500_INT_VBUS_DET_R,
703 .end = AB8500_INT_VBUS_DET_R,
704 .flags = IORESOURCE_IRQ,
707 .name = "VBUS_DET_F",
708 .start = AB8500_INT_VBUS_DET_F,
709 .end = AB8500_INT_VBUS_DET_F,
710 .flags = IORESOURCE_IRQ,
713 .name = "USB_LINK_STATUS",
714 .start = AB8500_INT_USB_LINK_STATUS,
715 .end = AB8500_INT_USB_LINK_STATUS,
716 .flags = IORESOURCE_IRQ,
720 .start = AB8500_INT_VBUS_OVV,
721 .end = AB8500_INT_VBUS_OVV,
722 .flags = IORESOURCE_IRQ,
725 .name = "USB_CH_TH_PROT_R",
726 .start = AB8500_INT_USB_CH_TH_PROT_R,
727 .end = AB8500_INT_USB_CH_TH_PROT_R,
728 .flags = IORESOURCE_IRQ,
731 .name = "USB_CH_TH_PROT_F",
732 .start = AB8500_INT_USB_CH_TH_PROT_F,
733 .end = AB8500_INT_USB_CH_TH_PROT_F,
734 .flags = IORESOURCE_IRQ,
737 .name = "MAIN_EXT_CH_NOT_OK",
738 .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
739 .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
740 .flags = IORESOURCE_IRQ,
743 .name = "MAIN_CH_TH_PROT_R",
744 .start = AB8500_INT_MAIN_CH_TH_PROT_R,
745 .end = AB8500_INT_MAIN_CH_TH_PROT_R,
746 .flags = IORESOURCE_IRQ,
749 .name = "MAIN_CH_TH_PROT_F",
750 .start = AB8500_INT_MAIN_CH_TH_PROT_F,
751 .end = AB8500_INT_MAIN_CH_TH_PROT_F,
752 .flags = IORESOURCE_IRQ,
755 .name = "USB_CHARGER_NOT_OKR",
756 .start = AB8500_INT_USB_CHARGER_NOT_OKR,
757 .end = AB8500_INT_USB_CHARGER_NOT_OKR,
758 .flags = IORESOURCE_IRQ,
762 .start = AB8500_INT_CH_WD_EXP,
763 .end = AB8500_INT_CH_WD_EXP,
764 .flags = IORESOURCE_IRQ,
768 static struct resource __devinitdata ab8500_btemp_resources[] = {
770 .name = "BAT_CTRL_INDB",
771 .start = AB8500_INT_BAT_CTRL_INDB,
772 .end = AB8500_INT_BAT_CTRL_INDB,
773 .flags = IORESOURCE_IRQ,
777 .start = AB8500_INT_BTEMP_LOW,
778 .end = AB8500_INT_BTEMP_LOW,
779 .flags = IORESOURCE_IRQ,
782 .name = "BTEMP_HIGH",
783 .start = AB8500_INT_BTEMP_HIGH,
784 .end = AB8500_INT_BTEMP_HIGH,
785 .flags = IORESOURCE_IRQ,
788 .name = "BTEMP_LOW_MEDIUM",
789 .start = AB8500_INT_BTEMP_LOW_MEDIUM,
790 .end = AB8500_INT_BTEMP_LOW_MEDIUM,
791 .flags = IORESOURCE_IRQ,
794 .name = "BTEMP_MEDIUM_HIGH",
795 .start = AB8500_INT_BTEMP_MEDIUM_HIGH,
796 .end = AB8500_INT_BTEMP_MEDIUM_HIGH,
797 .flags = IORESOURCE_IRQ,
801 static struct resource __devinitdata ab8500_fg_resources[] = {
803 .name = "NCONV_ACCU",
804 .start = AB8500_INT_CCN_CONV_ACC,
805 .end = AB8500_INT_CCN_CONV_ACC,
806 .flags = IORESOURCE_IRQ,
810 .start = AB8500_INT_BATT_OVV,
811 .end = AB8500_INT_BATT_OVV,
812 .flags = IORESOURCE_IRQ,
816 .start = AB8500_INT_LOW_BAT_F,
817 .end = AB8500_INT_LOW_BAT_F,
818 .flags = IORESOURCE_IRQ,
822 .start = AB8500_INT_LOW_BAT_R,
823 .end = AB8500_INT_LOW_BAT_R,
824 .flags = IORESOURCE_IRQ,
827 .name = "CC_INT_CALIB",
828 .start = AB8500_INT_CC_INT_CALIB,
829 .end = AB8500_INT_CC_INT_CALIB,
830 .flags = IORESOURCE_IRQ,
834 .start = AB8500_INT_CCEOC,
835 .end = AB8500_INT_CCEOC,
836 .flags = IORESOURCE_IRQ,
840 static struct resource __devinitdata ab8500_chargalg_resources[] = {};
842 #ifdef CONFIG_DEBUG_FS
843 static struct resource __devinitdata ab8500_debug_resources[] = {
846 .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
847 .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
848 .flags = IORESOURCE_IRQ,
852 .start = AB8500_INT_XTAL32K_KO,
853 .end = AB8500_INT_XTAL32K_KO,
854 .flags = IORESOURCE_IRQ,
859 static struct resource __devinitdata ab8500_usb_resources[] = {
861 .name = "ID_WAKEUP_R",
862 .start = AB8500_INT_ID_WAKEUP_R,
863 .end = AB8500_INT_ID_WAKEUP_R,
864 .flags = IORESOURCE_IRQ,
867 .name = "ID_WAKEUP_F",
868 .start = AB8500_INT_ID_WAKEUP_F,
869 .end = AB8500_INT_ID_WAKEUP_F,
870 .flags = IORESOURCE_IRQ,
873 .name = "VBUS_DET_F",
874 .start = AB8500_INT_VBUS_DET_F,
875 .end = AB8500_INT_VBUS_DET_F,
876 .flags = IORESOURCE_IRQ,
879 .name = "VBUS_DET_R",
880 .start = AB8500_INT_VBUS_DET_R,
881 .end = AB8500_INT_VBUS_DET_R,
882 .flags = IORESOURCE_IRQ,
885 .name = "USB_LINK_STATUS",
886 .start = AB8500_INT_USB_LINK_STATUS,
887 .end = AB8500_INT_USB_LINK_STATUS,
888 .flags = IORESOURCE_IRQ,
891 .name = "USB_ADP_PROBE_PLUG",
892 .start = AB8500_INT_ADP_PROBE_PLUG,
893 .end = AB8500_INT_ADP_PROBE_PLUG,
894 .flags = IORESOURCE_IRQ,
897 .name = "USB_ADP_PROBE_UNPLUG",
898 .start = AB8500_INT_ADP_PROBE_UNPLUG,
899 .end = AB8500_INT_ADP_PROBE_UNPLUG,
900 .flags = IORESOURCE_IRQ,
904 static struct resource __devinitdata ab8505_iddet_resources[] = {
906 .name = "KeyDeglitch",
907 .start = AB8505_INT_KEYDEGLITCH,
908 .end = AB8505_INT_KEYDEGLITCH,
909 .flags = IORESOURCE_IRQ,
913 .start = AB8505_INT_KP,
914 .end = AB8505_INT_KP,
915 .flags = IORESOURCE_IRQ,
919 .start = AB8505_INT_IKP,
920 .end = AB8505_INT_IKP,
921 .flags = IORESOURCE_IRQ,
925 .start = AB8505_INT_IKR,
926 .end = AB8505_INT_IKR,
927 .flags = IORESOURCE_IRQ,
931 .start = AB8505_INT_KEYSTUCK,
932 .end = AB8505_INT_KEYSTUCK,
933 .flags = IORESOURCE_IRQ,
937 static struct resource __devinitdata ab8500_temp_resources[] = {
939 .name = "AB8500_TEMP_WARM",
940 .start = AB8500_INT_TEMP_WARM,
941 .end = AB8500_INT_TEMP_WARM,
942 .flags = IORESOURCE_IRQ,
946 static struct mfd_cell __devinitdata abx500_common_devs[] = {
947 #ifdef CONFIG_DEBUG_FS
949 .name = "ab8500-debug",
950 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
951 .resources = ab8500_debug_resources,
955 .name = "ab8500-sysctrl",
958 .name = "ab8500-regulator",
961 .name = "ab8500-gpadc",
962 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
963 .resources = ab8500_gpadc_resources,
966 .name = "ab8500-rtc",
967 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
968 .resources = ab8500_rtc_resources,
971 .name = "ab8500-acc-det",
972 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
973 .resources = ab8500_av_acc_detect_resources,
976 .name = "ab8500-poweron-key",
977 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
978 .resources = ab8500_poweronkey_db_resources,
981 .name = "ab8500-pwm",
985 .name = "ab8500-pwm",
989 .name = "ab8500-pwm",
992 { .name = "ab8500-leds", },
994 .name = "ab8500-denc",
997 .name = "ab8500-temp",
998 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
999 .resources = ab8500_temp_resources,
1003 static struct mfd_cell __devinitdata ab8500_bm_devs[] = {
1005 .name = "ab8500-charger",
1006 .num_resources = ARRAY_SIZE(ab8500_charger_resources),
1007 .resources = ab8500_charger_resources,
1010 .name = "ab8500-btemp",
1011 .num_resources = ARRAY_SIZE(ab8500_btemp_resources),
1012 .resources = ab8500_btemp_resources,
1015 .name = "ab8500-fg",
1016 .num_resources = ARRAY_SIZE(ab8500_fg_resources),
1017 .resources = ab8500_fg_resources,
1020 .name = "ab8500-chargalg",
1021 .num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
1022 .resources = ab8500_chargalg_resources,
1026 static struct mfd_cell __devinitdata ab8500_devs[] = {
1028 .name = "ab8500-gpio",
1029 .num_resources = ARRAY_SIZE(ab8500_gpio_resources),
1030 .resources = ab8500_gpio_resources,
1033 .name = "ab8500-usb",
1034 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1035 .resources = ab8500_usb_resources,
1038 .name = "ab8500-codec",
1042 static struct mfd_cell __devinitdata ab9540_devs[] = {
1044 .name = "ab8500-gpio",
1045 .num_resources = ARRAY_SIZE(ab9540_gpio_resources),
1046 .resources = ab9540_gpio_resources,
1049 .name = "ab9540-usb",
1050 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1051 .resources = ab8500_usb_resources,
1054 .name = "ab9540-codec",
1058 /* Device list common to ab9540 and ab8505 */
1059 static struct mfd_cell __devinitdata ab9540_ab8505_devs[] = {
1062 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1063 .resources = ab8505_iddet_resources,
1067 static ssize_t show_chip_id(struct device *dev,
1068 struct device_attribute *attr, char *buf)
1070 struct ab8500 *ab8500;
1072 ab8500 = dev_get_drvdata(dev);
1073 return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
1077 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1078 * 0x01 Swoff bit programming
1079 * 0x02 Thermal protection activation
1080 * 0x04 Vbat lower then BattOk falling threshold
1081 * 0x08 Watchdog expired
1082 * 0x10 Non presence of 32kHz clock
1083 * 0x20 Battery level lower than power on reset threshold
1084 * 0x40 Power on key 1 pressed longer than 10 seconds
1085 * 0x80 DB8500 thermal shutdown
1087 static ssize_t show_switch_off_status(struct device *dev,
1088 struct device_attribute *attr, char *buf)
1092 struct ab8500 *ab8500;
1094 ab8500 = dev_get_drvdata(dev);
1095 ret = get_register_interruptible(ab8500, AB8500_RTC,
1096 AB8500_SWITCH_OFF_STATUS, &value);
1099 return sprintf(buf, "%#x\n", value);
1103 * ab8500 has turned on due to (TURN_ON_STATUS):
1113 static ssize_t show_turn_on_status(struct device *dev,
1114 struct device_attribute *attr, char *buf)
1118 struct ab8500 *ab8500;
1120 ab8500 = dev_get_drvdata(dev);
1121 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1122 AB8500_TURN_ON_STATUS, &value);
1125 return sprintf(buf, "%#x\n", value);
1128 static ssize_t show_ab9540_dbbrstn(struct device *dev,
1129 struct device_attribute *attr, char *buf)
1131 struct ab8500 *ab8500;
1135 ab8500 = dev_get_drvdata(dev);
1137 ret = get_register_interruptible(ab8500, AB8500_REGU_CTRL2,
1138 AB9540_MODEM_CTRL2_REG, &value);
1142 return sprintf(buf, "%d\n",
1143 (value & AB9540_MODEM_CTRL2_SWDBBRSTN_BIT) ? 1 : 0);
1146 static ssize_t store_ab9540_dbbrstn(struct device *dev,
1147 struct device_attribute *attr, const char *buf, size_t count)
1149 struct ab8500 *ab8500;
1154 ab8500 = dev_get_drvdata(dev);
1162 bitvalues = AB9540_MODEM_CTRL2_SWDBBRSTN_BIT;
1168 err = mask_and_set_register_interruptible(ab8500,
1169 AB8500_REGU_CTRL2, AB9540_MODEM_CTRL2_REG,
1170 AB9540_MODEM_CTRL2_SWDBBRSTN_BIT, bitvalues);
1172 dev_info(ab8500->dev,
1173 "Failed to set DBBRSTN %c, err %#x\n",
1181 static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);
1182 static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);
1183 static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL);
1184 static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,
1185 show_ab9540_dbbrstn, store_ab9540_dbbrstn);
1187 static struct attribute *ab8500_sysfs_entries[] = {
1188 &dev_attr_chip_id.attr,
1189 &dev_attr_switch_off_status.attr,
1190 &dev_attr_turn_on_status.attr,
1194 static struct attribute *ab9540_sysfs_entries[] = {
1195 &dev_attr_chip_id.attr,
1196 &dev_attr_switch_off_status.attr,
1197 &dev_attr_turn_on_status.attr,
1198 &dev_attr_dbbrstn.attr,
1202 static struct attribute_group ab8500_attr_group = {
1203 .attrs = ab8500_sysfs_entries,
1206 static struct attribute_group ab9540_attr_group = {
1207 .attrs = ab9540_sysfs_entries,
1210 static const struct of_device_id ab8500_match[] = {
1212 .compatible = "stericsson,ab8500",
1213 .data = (void *)AB8500_VERSION_AB8500,
1218 static int __devinit ab8500_probe(struct platform_device *pdev)
1220 struct ab8500_platform_data *plat = dev_get_platdata(&pdev->dev);
1221 const struct platform_device_id *platid = platform_get_device_id(pdev);
1222 enum ab8500_version version = AB8500_VERSION_UNDEFINED;
1223 struct device_node *np = pdev->dev.of_node;
1224 struct ab8500 *ab8500;
1225 struct resource *resource;
1230 ab8500 = kzalloc(sizeof *ab8500, GFP_KERNEL);
1235 ab8500->irq_base = plat->irq_base;
1237 ret = of_property_read_u32(np, "stericsson,irq-base", &ab8500->irq_base);
1239 if (!ab8500->irq_base) {
1240 dev_info(&pdev->dev, "couldn't find irq-base\n");
1242 goto out_free_ab8500;
1245 ab8500->dev = &pdev->dev;
1247 resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1250 goto out_free_ab8500;
1253 ab8500->irq = resource->start;
1255 ab8500->read = ab8500_i2c_read;
1256 ab8500->write = ab8500_i2c_write;
1257 ab8500->write_masked = ab8500_i2c_write_masked;
1259 mutex_init(&ab8500->lock);
1260 mutex_init(&ab8500->irq_lock);
1261 atomic_set(&ab8500->transfer_ongoing, 0);
1263 platform_set_drvdata(pdev, ab8500);
1266 version = platid->driver_data;
1268 version = (unsigned int)
1269 of_match_device(ab8500_match, &pdev->dev)->data;
1271 if (version != AB8500_VERSION_UNDEFINED)
1272 ab8500->version = version;
1274 ret = get_register_interruptible(ab8500, AB8500_MISC,
1275 AB8500_IC_NAME_REG, &value);
1277 goto out_free_ab8500;
1279 ab8500->version = value;
1282 ret = get_register_interruptible(ab8500, AB8500_MISC,
1283 AB8500_REV_REG, &value);
1285 goto out_free_ab8500;
1287 ab8500->chip_id = value;
1289 dev_info(ab8500->dev, "detected chip, %s rev. %1x.%1x\n",
1290 ab8500_version_str[ab8500->version],
1291 ab8500->chip_id >> 4,
1292 ab8500->chip_id & 0x0F);
1294 /* Configure AB8500 or AB9540 IRQ */
1295 if (is_ab9540(ab8500) || is_ab8505(ab8500)) {
1296 ab8500->mask_size = AB9540_NUM_IRQ_REGS;
1297 ab8500->irq_reg_offset = ab9540_irq_regoffset;
1299 ab8500->mask_size = AB8500_NUM_IRQ_REGS;
1300 ab8500->irq_reg_offset = ab8500_irq_regoffset;
1302 ab8500->mask = kzalloc(ab8500->mask_size, GFP_KERNEL);
1305 ab8500->oldmask = kzalloc(ab8500->mask_size, GFP_KERNEL);
1306 if (!ab8500->oldmask) {
1311 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1312 * 0x01 Swoff bit programming
1313 * 0x02 Thermal protection activation
1314 * 0x04 Vbat lower then BattOk falling threshold
1315 * 0x08 Watchdog expired
1316 * 0x10 Non presence of 32kHz clock
1317 * 0x20 Battery level lower than power on reset threshold
1318 * 0x40 Power on key 1 pressed longer than 10 seconds
1319 * 0x80 DB8500 thermal shutdown
1322 ret = get_register_interruptible(ab8500, AB8500_RTC,
1323 AB8500_SWITCH_OFF_STATUS, &value);
1326 dev_info(ab8500->dev, "switch off status: %#x", value);
1328 if (plat && plat->init)
1331 /* Clear and mask all interrupts */
1332 for (i = 0; i < ab8500->mask_size; i++) {
1334 * Interrupt register 12 doesn't exist prior to AB8500 version
1337 if (ab8500->irq_reg_offset[i] == 11 &&
1338 is_ab8500_1p1_or_earlier(ab8500))
1341 get_register_interruptible(ab8500, AB8500_INTERRUPT,
1342 AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i],
1344 set_register_interruptible(ab8500, AB8500_INTERRUPT,
1345 AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i], 0xff);
1348 ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
1350 goto out_freeoldmask;
1352 for (i = 0; i < ab8500->mask_size; i++)
1353 ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
1355 if (ab8500->irq_base) {
1356 ret = ab8500_irq_init(ab8500);
1358 goto out_freeoldmask;
1360 /* Activate this feature only in ab9540 */
1361 /* till tests are done on ab8500 1p2 or later*/
1362 if (is_ab9540(ab8500))
1363 ret = request_threaded_irq(ab8500->irq, NULL,
1364 ab8500_hierarchical_irq,
1365 IRQF_ONESHOT | IRQF_NO_SUSPEND,
1368 ret = request_threaded_irq(ab8500->irq, NULL,
1370 IRQF_ONESHOT | IRQF_NO_SUSPEND,
1377 ret = mfd_add_devices(ab8500->dev, 0, abx500_common_devs,
1378 ARRAY_SIZE(abx500_common_devs), NULL,
1384 if (is_ab9540(ab8500))
1385 ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
1386 ARRAY_SIZE(ab9540_devs), NULL,
1389 ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
1390 ARRAY_SIZE(ab8500_devs), NULL,
1395 if (is_ab9540(ab8500) || is_ab8505(ab8500))
1396 ret = mfd_add_devices(ab8500->dev, 0, ab9540_ab8505_devs,
1397 ARRAY_SIZE(ab9540_ab8505_devs), NULL,
1404 /* Add battery management devices */
1405 ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
1406 ARRAY_SIZE(ab8500_bm_devs), NULL,
1409 dev_err(ab8500->dev, "error adding bm devices\n");
1412 if (is_ab9540(ab8500))
1413 ret = sysfs_create_group(&ab8500->dev->kobj,
1414 &ab9540_attr_group);
1416 ret = sysfs_create_group(&ab8500->dev->kobj,
1417 &ab8500_attr_group);
1419 dev_err(ab8500->dev, "error creating sysfs entries\n");
1424 if (ab8500->irq_base)
1425 free_irq(ab8500->irq, ab8500);
1427 if (ab8500->irq_base)
1428 ab8500_irq_remove(ab8500);
1430 kfree(ab8500->oldmask);
1432 kfree(ab8500->mask);
1439 static int __devexit ab8500_remove(struct platform_device *pdev)
1441 struct ab8500 *ab8500 = platform_get_drvdata(pdev);
1443 if (is_ab9540(ab8500))
1444 sysfs_remove_group(&ab8500->dev->kobj, &ab9540_attr_group);
1446 sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group);
1447 mfd_remove_devices(ab8500->dev);
1448 if (ab8500->irq_base) {
1449 free_irq(ab8500->irq, ab8500);
1450 ab8500_irq_remove(ab8500);
1452 kfree(ab8500->oldmask);
1453 kfree(ab8500->mask);
1459 static const struct platform_device_id ab8500_id[] = {
1460 { "ab8500-core", AB8500_VERSION_AB8500 },
1461 { "ab8505-i2c", AB8500_VERSION_AB8505 },
1462 { "ab9540-i2c", AB8500_VERSION_AB9540 },
1463 { "ab8540-i2c", AB8500_VERSION_AB8540 },
1467 static struct platform_driver ab8500_core_driver = {
1469 .name = "ab8500-core",
1470 .owner = THIS_MODULE,
1471 .of_match_table = ab8500_match,
1473 .probe = ab8500_probe,
1474 .remove = __devexit_p(ab8500_remove),
1475 .id_table = ab8500_id,
1478 static int __init ab8500_core_init(void)
1480 return platform_driver_register(&ab8500_core_driver);
1483 static void __exit ab8500_core_exit(void)
1485 platform_driver_unregister(&ab8500_core_driver);
1487 arch_initcall(ab8500_core_init);
1488 module_exit(ab8500_core_exit);
1490 MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent");
1491 MODULE_DESCRIPTION("AB8500 MFD core");
1492 MODULE_LICENSE("GPL v2");