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/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>
26 #include <linux/of_device.h>
29 * Interrupt register offsets
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
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
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
101 * latch hierarchy registers
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
108 #define AB8500_IT_LATCHHIER_NUM 3
109 #define AB8540_IT_LATCHHIER_NUM 4
111 #define AB8500_REV_REG 0x80
112 #define AB8500_IC_NAME_REG 0x82
113 #define AB8500_SWITCH_OFF_STATUS 0x00
115 #define AB8500_TURN_ON_STATUS 0x00
116 #define AB8505_TURN_ON_STATUS_2 0x04
118 #define AB8500_CH_USBCH_STAT1_REG 0x02
119 #define VBUS_DET_DBNC100 0x02
120 #define VBUS_DET_DBNC1 0x01
122 static DEFINE_SPINLOCK(on_stat_lock);
123 static u8 turn_on_stat_mask = 0xFF;
124 static u8 turn_on_stat_set;
125 static bool no_bm; /* No battery management */
126 module_param(no_bm, bool, S_IRUGO);
128 #define AB9540_MODEM_CTRL2_REG 0x23
129 #define AB9540_MODEM_CTRL2_SWDBBRSTN_BIT BIT(2)
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
136 * This is one off from the register names, i.e. AB8500_IT_MASK1_REG is at
140 static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = {
141 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21,
144 /* AB9540 / AB8505 support */
145 static 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
150 static 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,
155 static 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",
162 static int ab8500_prcmu_write(struct ab8500 *ab8500, u16 addr, u8 data)
166 ret = prcmu_abb_write((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
168 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
172 static int ab8500_prcmu_write_masked(struct ab8500 *ab8500, u16 addr, u8 mask,
177 ret = prcmu_abb_write_masked((u8)(addr >> 8), (u8)(addr & 0xFF), &data,
180 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
184 static int ab8500_prcmu_read(struct ab8500 *ab8500, u16 addr)
189 ret = prcmu_abb_read((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
191 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
197 static int ab8500_get_chip_id(struct device *dev)
199 struct ab8500 *ab8500;
203 ab8500 = dev_get_drvdata(dev->parent);
204 return ab8500 ? (int)ab8500->chip_id : -EINVAL;
207 static int set_register_interruptible(struct ab8500 *ab8500, u8 bank,
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.
215 u16 addr = ((u16)bank) << 8 | reg;
217 dev_vdbg(ab8500->dev, "wr: addr %#x <= %#x\n", addr, data);
219 mutex_lock(&ab8500->lock);
221 ret = ab8500->write(ab8500, addr, data);
223 dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
225 mutex_unlock(&ab8500->lock);
230 static int ab8500_set_register(struct device *dev, u8 bank,
234 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
236 atomic_inc(&ab8500->transfer_ongoing);
237 ret = set_register_interruptible(ab8500, bank, reg, value);
238 atomic_dec(&ab8500->transfer_ongoing);
242 static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
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;
250 mutex_lock(&ab8500->lock);
252 ret = ab8500->read(ab8500, addr);
254 dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
259 mutex_unlock(&ab8500->lock);
260 dev_vdbg(ab8500->dev, "rd: addr %#x => data %#x\n", addr, ret);
265 static int ab8500_get_register(struct device *dev, u8 bank,
269 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
271 atomic_inc(&ab8500->transfer_ongoing);
272 ret = get_register_interruptible(ab8500, bank, reg, value);
273 atomic_dec(&ab8500->transfer_ongoing);
277 static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank,
278 u8 reg, u8 bitmask, u8 bitvalues)
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;
285 mutex_lock(&ab8500->lock);
287 if (ab8500->write_masked == NULL) {
290 ret = ab8500->read(ab8500, addr);
292 dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
298 data = (~bitmask & data) | (bitmask & bitvalues);
300 ret = ab8500->write(ab8500, addr, data);
302 dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
305 dev_vdbg(ab8500->dev, "mask: addr %#x => data %#x\n", addr,
309 ret = ab8500->write_masked(ab8500, addr, bitmask, bitvalues);
311 dev_err(ab8500->dev, "failed to modify reg %#x: %d\n", addr,
314 mutex_unlock(&ab8500->lock);
318 static int ab8500_mask_and_set_register(struct device *dev,
319 u8 bank, u8 reg, u8 bitmask, u8 bitvalues)
322 struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
324 atomic_inc(&ab8500->transfer_ongoing);
325 ret= mask_and_set_register_interruptible(ab8500, bank, reg,
327 atomic_dec(&ab8500->transfer_ongoing);
331 static 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,
343 static void ab8500_irq_lock(struct irq_data *data)
345 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
347 mutex_lock(&ab8500->irq_lock);
348 atomic_inc(&ab8500->transfer_ongoing);
351 static void ab8500_irq_sync_unlock(struct irq_data *data)
353 struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
356 for (i = 0; i < ab8500->mask_size; i++) {
357 u8 old = ab8500->oldmask[i];
358 u8 new = ab8500->mask[i];
365 * Interrupt register 12 doesn't exist prior to AB8500 version
368 if (ab8500->irq_reg_offset[i] == 11 &&
369 is_ab8500_1p1_or_earlier(ab8500))
372 if (ab8500->irq_reg_offset[i] < 0)
375 ab8500->oldmask[i] = new;
377 reg = AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i];
378 set_register_interruptible(ab8500, AB8500_INTERRUPT, reg, new);
380 atomic_dec(&ab8500->transfer_ongoing);
381 mutex_unlock(&ab8500->irq_lock);
384 static void ab8500_irq_mask(struct irq_data *data)
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);
391 ab8500->mask[index] |= mask;
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);
403 static void ab8500_irq_unmask(struct irq_data *data)
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);
411 if (type & IRQ_TYPE_EDGE_RISING)
412 ab8500->mask[index] &= ~mask;
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);
424 ab8500->mask[index] &= ~mask;
426 /* Satisfies the case where type is not set. */
427 ab8500->mask[index] &= ~mask;
431 static int ab8500_irq_set_type(struct irq_data *data, unsigned int type)
436 static struct irq_chip ab8500_irq_chip = {
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,
446 static void update_latch_offset(u8 *offset, int i)
448 /* Fix inconsistent ITFromLatch25 bit mapping... */
449 if (unlikely(*offset == 17))
451 /* Fix inconsistent ab8540 bit mapping... */
452 if (unlikely(*offset == 16))
454 if ((i==3) && (*offset >= 24))
458 static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
459 int latch_offset, u8 latch_val)
461 int int_bit, line, i;
463 for (i = 0; i < ab8500->mask_size; i++)
464 if (ab8500->irq_reg_offset[i] == latch_offset)
467 if (i >= ab8500->mask_size) {
468 dev_err(ab8500->dev, "Register offset 0x%2x not declared\n",
473 /* ignore masked out interrupts */
474 latch_val &= ~ab8500->mask[i];
477 int_bit = __ffs(latch_val);
478 line = (i << 3) + int_bit;
479 latch_val &= ~(1 << int_bit);
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
487 if (line >= AB8500_INT_GPIO6F && line <= AB8500_INT_GPIO41F)
489 if (line >= AB9540_INT_GPIO50F && line <= AB9540_INT_GPIO54F)
491 if (line == AB8540_INT_GPIO43F || line == AB8540_INT_GPIO44F)
494 handle_nested_irq(ab8500->irq_base + line);
500 static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500,
501 int hier_offset, u8 hier_val)
503 int latch_bit, status;
504 u8 latch_offset, latch_val;
507 latch_bit = __ffs(hier_val);
508 latch_offset = (hier_offset << 3) + latch_bit;
510 update_latch_offset(&latch_offset, hier_offset);
512 status = get_register_interruptible(ab8500,
514 AB8500_IT_LATCH1_REG + latch_offset,
516 if (status < 0 || latch_val == 0)
519 status = ab8500_handle_hierarchical_line(ab8500,
520 latch_offset, latch_val);
524 hier_val &= ~(1 << latch_bit);
530 static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev)
532 struct ab8500 *ab8500 = dev;
535 dev_vdbg(ab8500->dev, "interrupt\n");
537 /* Hierarchical interrupt version */
538 for (i = 0; i < (ab8500->it_latchhier_num); i++) {
542 status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
543 AB8500_IT_LATCHHIER1_REG + i, &hier_val);
544 if (status < 0 || hier_val == 0)
547 status = ab8500_handle_hierarchical_latch(ab8500, i, hier_val);
554 static int ab8500_irq_map(struct irq_domain *d, unsigned int virq,
555 irq_hw_number_t hwirq)
557 struct ab8500 *ab8500 = d->host_data;
562 irq_set_chip_data(virq, ab8500);
563 irq_set_chip_and_handler(virq, &ab8500_irq_chip,
565 irq_set_nested_thread(virq, 1);
567 set_irq_flags(virq, IRQF_VALID);
569 irq_set_noprobe(virq);
575 static struct irq_domain_ops ab8500_irq_ops = {
576 .map = ab8500_irq_map,
577 .xlate = irq_domain_xlate_twocell,
580 static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np)
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;
591 num_irqs = AB8500_NR_IRQS;
593 /* If ->irq_base is zero this will give a linear mapping */
594 ab8500->domain = irq_domain_add_simple(NULL,
595 num_irqs, ab8500->irq_base,
596 &ab8500_irq_ops, ab8500);
598 if (!ab8500->domain) {
599 dev_err(ab8500->dev, "Failed to create irqdomain\n");
606 int ab8500_suspend(struct ab8500 *ab8500)
608 if (atomic_read(&ab8500->transfer_ongoing))
614 static struct resource ab8500_gpadc_resources[] = {
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,
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,
629 static struct resource ab8505_gpadc_resources[] = {
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,
638 static struct resource ab8500_rtc_resources[] = {
641 .start = AB8500_INT_RTC_60S,
642 .end = AB8500_INT_RTC_60S,
643 .flags = IORESOURCE_IRQ,
647 .start = AB8500_INT_RTC_ALARM,
648 .end = AB8500_INT_RTC_ALARM,
649 .flags = IORESOURCE_IRQ,
653 static struct resource ab8500_poweronkey_db_resources[] = {
656 .start = AB8500_INT_PON_KEY1DB_F,
657 .end = AB8500_INT_PON_KEY1DB_F,
658 .flags = IORESOURCE_IRQ,
662 .start = AB8500_INT_PON_KEY1DB_R,
663 .end = AB8500_INT_PON_KEY1DB_R,
664 .flags = IORESOURCE_IRQ,
668 static struct resource ab8500_av_acc_detect_resources[] = {
670 .name = "ACC_DETECT_1DB_F",
671 .start = AB8500_INT_ACC_DETECT_1DB_F,
672 .end = AB8500_INT_ACC_DETECT_1DB_F,
673 .flags = IORESOURCE_IRQ,
676 .name = "ACC_DETECT_1DB_R",
677 .start = AB8500_INT_ACC_DETECT_1DB_R,
678 .end = AB8500_INT_ACC_DETECT_1DB_R,
679 .flags = IORESOURCE_IRQ,
682 .name = "ACC_DETECT_21DB_F",
683 .start = AB8500_INT_ACC_DETECT_21DB_F,
684 .end = AB8500_INT_ACC_DETECT_21DB_F,
685 .flags = IORESOURCE_IRQ,
688 .name = "ACC_DETECT_21DB_R",
689 .start = AB8500_INT_ACC_DETECT_21DB_R,
690 .end = AB8500_INT_ACC_DETECT_21DB_R,
691 .flags = IORESOURCE_IRQ,
694 .name = "ACC_DETECT_22DB_F",
695 .start = AB8500_INT_ACC_DETECT_22DB_F,
696 .end = AB8500_INT_ACC_DETECT_22DB_F,
697 .flags = IORESOURCE_IRQ,
700 .name = "ACC_DETECT_22DB_R",
701 .start = AB8500_INT_ACC_DETECT_22DB_R,
702 .end = AB8500_INT_ACC_DETECT_22DB_R,
703 .flags = IORESOURCE_IRQ,
707 static struct resource ab8500_charger_resources[] = {
709 .name = "MAIN_CH_UNPLUG_DET",
710 .start = AB8500_INT_MAIN_CH_UNPLUG_DET,
711 .end = AB8500_INT_MAIN_CH_UNPLUG_DET,
712 .flags = IORESOURCE_IRQ,
715 .name = "MAIN_CHARGE_PLUG_DET",
716 .start = AB8500_INT_MAIN_CH_PLUG_DET,
717 .end = AB8500_INT_MAIN_CH_PLUG_DET,
718 .flags = IORESOURCE_IRQ,
721 .name = "VBUS_DET_R",
722 .start = AB8500_INT_VBUS_DET_R,
723 .end = AB8500_INT_VBUS_DET_R,
724 .flags = IORESOURCE_IRQ,
727 .name = "VBUS_DET_F",
728 .start = AB8500_INT_VBUS_DET_F,
729 .end = AB8500_INT_VBUS_DET_F,
730 .flags = IORESOURCE_IRQ,
733 .name = "USB_LINK_STATUS",
734 .start = AB8500_INT_USB_LINK_STATUS,
735 .end = AB8500_INT_USB_LINK_STATUS,
736 .flags = IORESOURCE_IRQ,
740 .start = AB8500_INT_VBUS_OVV,
741 .end = AB8500_INT_VBUS_OVV,
742 .flags = IORESOURCE_IRQ,
745 .name = "USB_CH_TH_PROT_R",
746 .start = AB8500_INT_USB_CH_TH_PROT_R,
747 .end = AB8500_INT_USB_CH_TH_PROT_R,
748 .flags = IORESOURCE_IRQ,
751 .name = "USB_CH_TH_PROT_F",
752 .start = AB8500_INT_USB_CH_TH_PROT_F,
753 .end = AB8500_INT_USB_CH_TH_PROT_F,
754 .flags = IORESOURCE_IRQ,
757 .name = "MAIN_EXT_CH_NOT_OK",
758 .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
759 .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
760 .flags = IORESOURCE_IRQ,
763 .name = "MAIN_CH_TH_PROT_R",
764 .start = AB8500_INT_MAIN_CH_TH_PROT_R,
765 .end = AB8500_INT_MAIN_CH_TH_PROT_R,
766 .flags = IORESOURCE_IRQ,
769 .name = "MAIN_CH_TH_PROT_F",
770 .start = AB8500_INT_MAIN_CH_TH_PROT_F,
771 .end = AB8500_INT_MAIN_CH_TH_PROT_F,
772 .flags = IORESOURCE_IRQ,
775 .name = "USB_CHARGER_NOT_OKR",
776 .start = AB8500_INT_USB_CHARGER_NOT_OKR,
777 .end = AB8500_INT_USB_CHARGER_NOT_OKR,
778 .flags = IORESOURCE_IRQ,
782 .start = AB8500_INT_CH_WD_EXP,
783 .end = AB8500_INT_CH_WD_EXP,
784 .flags = IORESOURCE_IRQ,
787 .name = "VBUS_CH_DROP_END",
788 .start = AB8500_INT_VBUS_CH_DROP_END,
789 .end = AB8500_INT_VBUS_CH_DROP_END,
790 .flags = IORESOURCE_IRQ,
794 static struct resource ab8500_btemp_resources[] = {
796 .name = "BAT_CTRL_INDB",
797 .start = AB8500_INT_BAT_CTRL_INDB,
798 .end = AB8500_INT_BAT_CTRL_INDB,
799 .flags = IORESOURCE_IRQ,
803 .start = AB8500_INT_BTEMP_LOW,
804 .end = AB8500_INT_BTEMP_LOW,
805 .flags = IORESOURCE_IRQ,
808 .name = "BTEMP_HIGH",
809 .start = AB8500_INT_BTEMP_HIGH,
810 .end = AB8500_INT_BTEMP_HIGH,
811 .flags = IORESOURCE_IRQ,
814 .name = "BTEMP_LOW_MEDIUM",
815 .start = AB8500_INT_BTEMP_LOW_MEDIUM,
816 .end = AB8500_INT_BTEMP_LOW_MEDIUM,
817 .flags = IORESOURCE_IRQ,
820 .name = "BTEMP_MEDIUM_HIGH",
821 .start = AB8500_INT_BTEMP_MEDIUM_HIGH,
822 .end = AB8500_INT_BTEMP_MEDIUM_HIGH,
823 .flags = IORESOURCE_IRQ,
827 static struct resource ab8500_fg_resources[] = {
829 .name = "NCONV_ACCU",
830 .start = AB8500_INT_CCN_CONV_ACC,
831 .end = AB8500_INT_CCN_CONV_ACC,
832 .flags = IORESOURCE_IRQ,
836 .start = AB8500_INT_BATT_OVV,
837 .end = AB8500_INT_BATT_OVV,
838 .flags = IORESOURCE_IRQ,
842 .start = AB8500_INT_LOW_BAT_F,
843 .end = AB8500_INT_LOW_BAT_F,
844 .flags = IORESOURCE_IRQ,
848 .start = AB8500_INT_LOW_BAT_R,
849 .end = AB8500_INT_LOW_BAT_R,
850 .flags = IORESOURCE_IRQ,
853 .name = "CC_INT_CALIB",
854 .start = AB8500_INT_CC_INT_CALIB,
855 .end = AB8500_INT_CC_INT_CALIB,
856 .flags = IORESOURCE_IRQ,
860 .start = AB8500_INT_CCEOC,
861 .end = AB8500_INT_CCEOC,
862 .flags = IORESOURCE_IRQ,
866 static struct resource ab8500_chargalg_resources[] = {};
868 #ifdef CONFIG_DEBUG_FS
869 static struct resource ab8500_debug_resources[] = {
871 .name = "IRQ_AB8500",
873 * Number will be filled in. NOTE: this is deliberately
874 * not flagged as an IRQ in ordet to avoid remapping using
875 * the irqdomain in the MFD core, so that this IRQ passes
876 * unremapped to the debug code.
881 .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
882 .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
883 .flags = IORESOURCE_IRQ,
887 .start = AB8500_INT_XTAL32K_KO,
888 .end = AB8500_INT_XTAL32K_KO,
889 .flags = IORESOURCE_IRQ,
894 static struct resource ab8500_usb_resources[] = {
896 .name = "ID_WAKEUP_R",
897 .start = AB8500_INT_ID_WAKEUP_R,
898 .end = AB8500_INT_ID_WAKEUP_R,
899 .flags = IORESOURCE_IRQ,
902 .name = "ID_WAKEUP_F",
903 .start = AB8500_INT_ID_WAKEUP_F,
904 .end = AB8500_INT_ID_WAKEUP_F,
905 .flags = IORESOURCE_IRQ,
908 .name = "VBUS_DET_F",
909 .start = AB8500_INT_VBUS_DET_F,
910 .end = AB8500_INT_VBUS_DET_F,
911 .flags = IORESOURCE_IRQ,
914 .name = "VBUS_DET_R",
915 .start = AB8500_INT_VBUS_DET_R,
916 .end = AB8500_INT_VBUS_DET_R,
917 .flags = IORESOURCE_IRQ,
920 .name = "USB_LINK_STATUS",
921 .start = AB8500_INT_USB_LINK_STATUS,
922 .end = AB8500_INT_USB_LINK_STATUS,
923 .flags = IORESOURCE_IRQ,
926 .name = "USB_ADP_PROBE_PLUG",
927 .start = AB8500_INT_ADP_PROBE_PLUG,
928 .end = AB8500_INT_ADP_PROBE_PLUG,
929 .flags = IORESOURCE_IRQ,
932 .name = "USB_ADP_PROBE_UNPLUG",
933 .start = AB8500_INT_ADP_PROBE_UNPLUG,
934 .end = AB8500_INT_ADP_PROBE_UNPLUG,
935 .flags = IORESOURCE_IRQ,
939 static struct resource ab8505_iddet_resources[] = {
941 .name = "KeyDeglitch",
942 .start = AB8505_INT_KEYDEGLITCH,
943 .end = AB8505_INT_KEYDEGLITCH,
944 .flags = IORESOURCE_IRQ,
948 .start = AB8505_INT_KP,
949 .end = AB8505_INT_KP,
950 .flags = IORESOURCE_IRQ,
954 .start = AB8505_INT_IKP,
955 .end = AB8505_INT_IKP,
956 .flags = IORESOURCE_IRQ,
960 .start = AB8505_INT_IKR,
961 .end = AB8505_INT_IKR,
962 .flags = IORESOURCE_IRQ,
966 .start = AB8505_INT_KEYSTUCK,
967 .end = AB8505_INT_KEYSTUCK,
968 .flags = IORESOURCE_IRQ,
971 .name = "VBUS_DET_R",
972 .start = AB8500_INT_VBUS_DET_R,
973 .end = AB8500_INT_VBUS_DET_R,
974 .flags = IORESOURCE_IRQ,
977 .name = "VBUS_DET_F",
978 .start = AB8500_INT_VBUS_DET_F,
979 .end = AB8500_INT_VBUS_DET_F,
980 .flags = IORESOURCE_IRQ,
983 .name = "ID_DET_PLUGR",
984 .start = AB8500_INT_ID_DET_PLUGR,
985 .end = AB8500_INT_ID_DET_PLUGR,
986 .flags = IORESOURCE_IRQ,
989 .name = "ID_DET_PLUGF",
990 .start = AB8500_INT_ID_DET_PLUGF,
991 .end = AB8500_INT_ID_DET_PLUGF,
992 .flags = IORESOURCE_IRQ,
996 static struct resource ab8500_temp_resources[] = {
998 .name = "ABX500_TEMP_WARM",
999 .start = AB8500_INT_TEMP_WARM,
1000 .end = AB8500_INT_TEMP_WARM,
1001 .flags = IORESOURCE_IRQ,
1005 static struct mfd_cell ab8500_bm_devs[] = {
1007 .name = "ab8500-charger",
1008 .of_compatible = "stericsson,ab8500-charger",
1009 .num_resources = ARRAY_SIZE(ab8500_charger_resources),
1010 .resources = ab8500_charger_resources,
1011 .platform_data = &ab8500_bm_data,
1012 .pdata_size = sizeof(ab8500_bm_data),
1015 .name = "ab8500-btemp",
1016 .of_compatible = "stericsson,ab8500-btemp",
1017 .num_resources = ARRAY_SIZE(ab8500_btemp_resources),
1018 .resources = ab8500_btemp_resources,
1019 .platform_data = &ab8500_bm_data,
1020 .pdata_size = sizeof(ab8500_bm_data),
1023 .name = "ab8500-fg",
1024 .of_compatible = "stericsson,ab8500-fg",
1025 .num_resources = ARRAY_SIZE(ab8500_fg_resources),
1026 .resources = ab8500_fg_resources,
1027 .platform_data = &ab8500_bm_data,
1028 .pdata_size = sizeof(ab8500_bm_data),
1031 .name = "ab8500-chargalg",
1032 .of_compatible = "stericsson,ab8500-chargalg",
1033 .num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
1034 .resources = ab8500_chargalg_resources,
1035 .platform_data = &ab8500_bm_data,
1036 .pdata_size = sizeof(ab8500_bm_data),
1040 static struct mfd_cell ab8500_devs[] = {
1041 #ifdef CONFIG_DEBUG_FS
1043 .name = "ab8500-debug",
1044 .of_compatible = "stericsson,ab8500-debug",
1045 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1046 .resources = ab8500_debug_resources,
1050 .name = "ab8500-sysctrl",
1051 .of_compatible = "stericsson,ab8500-sysctrl",
1054 .name = "ab8500-regulator",
1055 .of_compatible = "stericsson,ab8500-regulator",
1058 .name = "abx500-clk",
1059 .of_compatible = "stericsson,abx500-clk",
1062 .name = "ab8500-gpadc",
1063 .of_compatible = "stericsson,ab8500-gpadc",
1064 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
1065 .resources = ab8500_gpadc_resources,
1068 .name = "ab8500-rtc",
1069 .of_compatible = "stericsson,ab8500-rtc",
1070 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1071 .resources = ab8500_rtc_resources,
1074 .name = "ab8500-acc-det",
1075 .of_compatible = "stericsson,ab8500-acc-det",
1076 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1077 .resources = ab8500_av_acc_detect_resources,
1081 .name = "ab8500-poweron-key",
1082 .of_compatible = "stericsson,ab8500-poweron-key",
1083 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1084 .resources = ab8500_poweronkey_db_resources,
1087 .name = "ab8500-pwm",
1088 .of_compatible = "stericsson,ab8500-pwm",
1092 .name = "ab8500-pwm",
1093 .of_compatible = "stericsson,ab8500-pwm",
1097 .name = "ab8500-pwm",
1098 .of_compatible = "stericsson,ab8500-pwm",
1102 .name = "ab8500-leds",
1103 .of_compatible = "stericsson,ab8500-leds",
1106 .name = "ab8500-denc",
1107 .of_compatible = "stericsson,ab8500-denc",
1110 .name = "pinctrl-ab8500",
1111 .of_compatible = "stericsson,ab8500-gpio",
1114 .name = "abx500-temp",
1115 .of_compatible = "stericsson,abx500-temp",
1116 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1117 .resources = ab8500_temp_resources,
1120 .name = "ab8500-usb",
1121 .of_compatible = "stericsson,ab8500-usb",
1122 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1123 .resources = ab8500_usb_resources,
1126 .name = "ab8500-codec",
1130 static struct mfd_cell ab9540_devs[] = {
1131 #ifdef CONFIG_DEBUG_FS
1133 .name = "ab8500-debug",
1134 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1135 .resources = ab8500_debug_resources,
1139 .name = "ab8500-sysctrl",
1142 .name = "ab8500-regulator",
1145 .name = "abx500-clk",
1146 .of_compatible = "stericsson,abx500-clk",
1149 .name = "ab8500-gpadc",
1150 .of_compatible = "stericsson,ab8500-gpadc",
1151 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
1152 .resources = ab8500_gpadc_resources,
1155 .name = "ab8500-rtc",
1156 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1157 .resources = ab8500_rtc_resources,
1160 .name = "ab8500-acc-det",
1161 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1162 .resources = ab8500_av_acc_detect_resources,
1165 .name = "ab8500-poweron-key",
1166 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1167 .resources = ab8500_poweronkey_db_resources,
1170 .name = "ab8500-pwm",
1174 .name = "ab8500-leds",
1177 .name = "abx500-temp",
1178 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1179 .resources = ab8500_temp_resources,
1182 .name = "pinctrl-ab9540",
1183 .of_compatible = "stericsson,ab9540-gpio",
1186 .name = "ab9540-usb",
1187 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1188 .resources = ab8500_usb_resources,
1191 .name = "ab9540-codec",
1195 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1196 .resources = ab8505_iddet_resources,
1200 /* Device list for ab8505 */
1201 static struct mfd_cell ab8505_devs[] = {
1202 #ifdef CONFIG_DEBUG_FS
1204 .name = "ab8500-debug",
1205 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1206 .resources = ab8500_debug_resources,
1210 .name = "ab8500-sysctrl",
1213 .name = "ab8500-regulator",
1216 .name = "abx500-clk",
1217 .of_compatible = "stericsson,abx500-clk",
1220 .name = "ab8500-gpadc",
1221 .of_compatible = "stericsson,ab8500-gpadc",
1222 .num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
1223 .resources = ab8505_gpadc_resources,
1226 .name = "ab8500-rtc",
1227 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1228 .resources = ab8500_rtc_resources,
1231 .name = "ab8500-acc-det",
1232 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1233 .resources = ab8500_av_acc_detect_resources,
1236 .name = "ab8500-poweron-key",
1237 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1238 .resources = ab8500_poweronkey_db_resources,
1241 .name = "ab8500-pwm",
1245 .name = "ab8500-leds",
1248 .name = "pinctrl-ab8505",
1251 .name = "ab8500-usb",
1252 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1253 .resources = ab8500_usb_resources,
1256 .name = "ab8500-codec",
1260 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1261 .resources = ab8505_iddet_resources,
1265 static struct mfd_cell ab8540_devs[] = {
1266 #ifdef CONFIG_DEBUG_FS
1268 .name = "ab8500-debug",
1269 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1270 .resources = ab8500_debug_resources,
1274 .name = "ab8500-sysctrl",
1277 .name = "ab8500-regulator",
1280 .name = "abx500-clk",
1281 .of_compatible = "stericsson,abx500-clk",
1284 .name = "ab8500-gpadc",
1285 .of_compatible = "stericsson,ab8500-gpadc",
1286 .num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
1287 .resources = ab8505_gpadc_resources,
1290 .name = "ab8500-rtc",
1291 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1292 .resources = ab8500_rtc_resources,
1295 .name = "ab8500-acc-det",
1296 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1297 .resources = ab8500_av_acc_detect_resources,
1300 .name = "ab8500-poweron-key",
1301 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1302 .resources = ab8500_poweronkey_db_resources,
1305 .name = "ab8500-pwm",
1309 .name = "ab8500-leds",
1312 .name = "abx500-temp",
1313 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1314 .resources = ab8500_temp_resources,
1317 .name = "pinctrl-ab8540",
1320 .name = "ab8540-usb",
1321 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1322 .resources = ab8500_usb_resources,
1325 .name = "ab8540-codec",
1329 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1330 .resources = ab8505_iddet_resources,
1334 static ssize_t show_chip_id(struct device *dev,
1335 struct device_attribute *attr, char *buf)
1337 struct ab8500 *ab8500;
1339 ab8500 = dev_get_drvdata(dev);
1341 return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
1345 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1346 * 0x01 Swoff bit programming
1347 * 0x02 Thermal protection activation
1348 * 0x04 Vbat lower then BattOk falling threshold
1349 * 0x08 Watchdog expired
1350 * 0x10 Non presence of 32kHz clock
1351 * 0x20 Battery level lower than power on reset threshold
1352 * 0x40 Power on key 1 pressed longer than 10 seconds
1353 * 0x80 DB8500 thermal shutdown
1355 static ssize_t show_switch_off_status(struct device *dev,
1356 struct device_attribute *attr, char *buf)
1360 struct ab8500 *ab8500;
1362 ab8500 = dev_get_drvdata(dev);
1363 ret = get_register_interruptible(ab8500, AB8500_RTC,
1364 AB8500_SWITCH_OFF_STATUS, &value);
1367 return sprintf(buf, "%#x\n", value);
1370 /* use mask and set to override the register turn_on_stat value */
1371 void ab8500_override_turn_on_stat(u8 mask, u8 set)
1373 spin_lock(&on_stat_lock);
1374 turn_on_stat_mask = mask;
1375 turn_on_stat_set = set;
1376 spin_unlock(&on_stat_lock);
1380 * ab8500 has turned on due to (TURN_ON_STATUS):
1390 static ssize_t show_turn_on_status(struct device *dev,
1391 struct device_attribute *attr, char *buf)
1395 struct ab8500 *ab8500;
1397 ab8500 = dev_get_drvdata(dev);
1398 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1399 AB8500_TURN_ON_STATUS, &value);
1404 * In L9540, turn_on_status register is not updated correctly if
1405 * the device is rebooted with AC/USB charger connected. Due to
1406 * this, the device boots android instead of entering into charge
1407 * only mode. Read the AC/USB status register to detect the charger
1408 * presence and update the turn on status manually.
1410 if (is_ab9540(ab8500)) {
1411 spin_lock(&on_stat_lock);
1412 value = (value & turn_on_stat_mask) | turn_on_stat_set;
1413 spin_unlock(&on_stat_lock);
1416 return sprintf(buf, "%#x\n", value);
1419 static ssize_t show_turn_on_status_2(struct device *dev,
1420 struct device_attribute *attr, char *buf)
1424 struct ab8500 *ab8500;
1426 ab8500 = dev_get_drvdata(dev);
1427 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1428 AB8505_TURN_ON_STATUS_2, &value);
1431 return sprintf(buf, "%#x\n", (value & 0x1));
1434 static ssize_t show_ab9540_dbbrstn(struct device *dev,
1435 struct device_attribute *attr, char *buf)
1437 struct ab8500 *ab8500;
1441 ab8500 = dev_get_drvdata(dev);
1443 ret = get_register_interruptible(ab8500, AB8500_REGU_CTRL2,
1444 AB9540_MODEM_CTRL2_REG, &value);
1448 return sprintf(buf, "%d\n",
1449 (value & AB9540_MODEM_CTRL2_SWDBBRSTN_BIT) ? 1 : 0);
1452 static ssize_t store_ab9540_dbbrstn(struct device *dev,
1453 struct device_attribute *attr, const char *buf, size_t count)
1455 struct ab8500 *ab8500;
1460 ab8500 = dev_get_drvdata(dev);
1468 bitvalues = AB9540_MODEM_CTRL2_SWDBBRSTN_BIT;
1474 err = mask_and_set_register_interruptible(ab8500,
1475 AB8500_REGU_CTRL2, AB9540_MODEM_CTRL2_REG,
1476 AB9540_MODEM_CTRL2_SWDBBRSTN_BIT, bitvalues);
1478 dev_info(ab8500->dev,
1479 "Failed to set DBBRSTN %c, err %#x\n",
1487 static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);
1488 static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);
1489 static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL);
1490 static DEVICE_ATTR(turn_on_status_2, S_IRUGO, show_turn_on_status_2, NULL);
1491 static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,
1492 show_ab9540_dbbrstn, store_ab9540_dbbrstn);
1494 static struct attribute *ab8500_sysfs_entries[] = {
1495 &dev_attr_chip_id.attr,
1496 &dev_attr_switch_off_status.attr,
1497 &dev_attr_turn_on_status.attr,
1501 static struct attribute *ab8505_sysfs_entries[] = {
1502 &dev_attr_turn_on_status_2.attr,
1506 static struct attribute *ab9540_sysfs_entries[] = {
1507 &dev_attr_chip_id.attr,
1508 &dev_attr_switch_off_status.attr,
1509 &dev_attr_turn_on_status.attr,
1510 &dev_attr_dbbrstn.attr,
1514 static struct attribute_group ab8500_attr_group = {
1515 .attrs = ab8500_sysfs_entries,
1518 static struct attribute_group ab8505_attr_group = {
1519 .attrs = ab8505_sysfs_entries,
1522 static struct attribute_group ab9540_attr_group = {
1523 .attrs = ab9540_sysfs_entries,
1526 static int ab8500_probe(struct platform_device *pdev)
1528 static char *switch_off_status[] = {
1529 "Swoff bit programming",
1530 "Thermal protection activation",
1531 "Vbat lower then BattOk falling threshold",
1533 "Non presence of 32kHz clock",
1534 "Battery level lower than power on reset threshold",
1535 "Power on key 1 pressed longer than 10 seconds",
1536 "DB8500 thermal shutdown"};
1537 static char *turn_on_status[] = {
1538 "Battery rising (Vbat)",
1539 "Power On Key 1 dbF",
1540 "Power On Key 2 dbF",
1542 "Main Charger Detect",
1543 "Vbus Detect (USB)",
1545 "UART Factory Mode Detect"};
1546 struct ab8500_platform_data *plat = dev_get_platdata(&pdev->dev);
1547 const struct platform_device_id *platid = platform_get_device_id(pdev);
1548 enum ab8500_version version = AB8500_VERSION_UNDEFINED;
1549 struct device_node *np = pdev->dev.of_node;
1550 struct ab8500 *ab8500;
1551 struct resource *resource;
1556 ab8500 = devm_kzalloc(&pdev->dev, sizeof *ab8500, GFP_KERNEL);
1561 ab8500->irq_base = plat->irq_base;
1563 ab8500->dev = &pdev->dev;
1565 resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1569 ab8500->irq = resource->start;
1571 ab8500->read = ab8500_prcmu_read;
1572 ab8500->write = ab8500_prcmu_write;
1573 ab8500->write_masked = ab8500_prcmu_write_masked;
1575 mutex_init(&ab8500->lock);
1576 mutex_init(&ab8500->irq_lock);
1577 atomic_set(&ab8500->transfer_ongoing, 0);
1579 platform_set_drvdata(pdev, ab8500);
1582 version = platid->driver_data;
1584 if (version != AB8500_VERSION_UNDEFINED)
1585 ab8500->version = version;
1587 ret = get_register_interruptible(ab8500, AB8500_MISC,
1588 AB8500_IC_NAME_REG, &value);
1592 ab8500->version = value;
1595 ret = get_register_interruptible(ab8500, AB8500_MISC,
1596 AB8500_REV_REG, &value);
1600 ab8500->chip_id = value;
1602 dev_info(ab8500->dev, "detected chip, %s rev. %1x.%1x\n",
1603 ab8500_version_str[ab8500->version],
1604 ab8500->chip_id >> 4,
1605 ab8500->chip_id & 0x0F);
1607 /* Configure AB8540 */
1608 if (is_ab8540(ab8500)) {
1609 ab8500->mask_size = AB8540_NUM_IRQ_REGS;
1610 ab8500->irq_reg_offset = ab8540_irq_regoffset;
1611 ab8500->it_latchhier_num = AB8540_IT_LATCHHIER_NUM;
1612 }/* Configure AB8500 or AB9540 IRQ */
1613 else if (is_ab9540(ab8500) || is_ab8505(ab8500)) {
1614 ab8500->mask_size = AB9540_NUM_IRQ_REGS;
1615 ab8500->irq_reg_offset = ab9540_irq_regoffset;
1616 ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
1618 ab8500->mask_size = AB8500_NUM_IRQ_REGS;
1619 ab8500->irq_reg_offset = ab8500_irq_regoffset;
1620 ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
1622 ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL);
1625 ab8500->oldmask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL);
1626 if (!ab8500->oldmask)
1630 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1631 * 0x01 Swoff bit programming
1632 * 0x02 Thermal protection activation
1633 * 0x04 Vbat lower then BattOk falling threshold
1634 * 0x08 Watchdog expired
1635 * 0x10 Non presence of 32kHz clock
1636 * 0x20 Battery level lower than power on reset threshold
1637 * 0x40 Power on key 1 pressed longer than 10 seconds
1638 * 0x80 DB8500 thermal shutdown
1641 ret = get_register_interruptible(ab8500, AB8500_RTC,
1642 AB8500_SWITCH_OFF_STATUS, &value);
1645 dev_info(ab8500->dev, "switch off cause(s) (%#x): ", value);
1648 for (i = 0; i < ARRAY_SIZE(switch_off_status); i++) {
1650 printk(KERN_CONT " \"%s\"",
1651 switch_off_status[i]);
1655 printk(KERN_CONT "\n");
1657 printk(KERN_CONT " None\n");
1659 ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1660 AB8500_TURN_ON_STATUS, &value);
1663 dev_info(ab8500->dev, "turn on reason(s) (%#x): ", value);
1666 for (i = 0; i < ARRAY_SIZE(turn_on_status); i++) {
1668 printk("\"%s\" ", turn_on_status[i]);
1676 if (plat && plat->init)
1679 if (is_ab9540(ab8500)) {
1680 ret = get_register_interruptible(ab8500, AB8500_CHARGER,
1681 AB8500_CH_USBCH_STAT1_REG, &value);
1684 if ((value & VBUS_DET_DBNC1) && (value & VBUS_DET_DBNC100))
1685 ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON,
1689 /* Clear and mask all interrupts */
1690 for (i = 0; i < ab8500->mask_size; i++) {
1692 * Interrupt register 12 doesn't exist prior to AB8500 version
1695 if (ab8500->irq_reg_offset[i] == 11 &&
1696 is_ab8500_1p1_or_earlier(ab8500))
1699 if (ab8500->irq_reg_offset[i] < 0)
1702 get_register_interruptible(ab8500, AB8500_INTERRUPT,
1703 AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i],
1705 set_register_interruptible(ab8500, AB8500_INTERRUPT,
1706 AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i], 0xff);
1709 ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
1713 for (i = 0; i < ab8500->mask_size; i++)
1714 ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
1716 ret = ab8500_irq_init(ab8500, np);
1720 ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL,
1721 ab8500_hierarchical_irq,
1722 IRQF_ONESHOT | IRQF_NO_SUSPEND,
1728 /* Pass to debugfs */
1729 ab8500_debug_resources[0].start = ab8500->irq;
1730 ab8500_debug_resources[0].end = ab8500->irq;
1733 if (is_ab9540(ab8500))
1734 ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
1735 ARRAY_SIZE(ab9540_devs), NULL,
1736 ab8500->irq_base, ab8500->domain);
1737 else if (is_ab8540(ab8500))
1738 ret = mfd_add_devices(ab8500->dev, 0, ab8540_devs,
1739 ARRAY_SIZE(ab8540_devs), NULL,
1740 ab8500->irq_base, ab8500->domain);
1741 else if (is_ab8505(ab8500))
1742 ret = mfd_add_devices(ab8500->dev, 0, ab8505_devs,
1743 ARRAY_SIZE(ab8505_devs), NULL,
1744 ab8500->irq_base, ab8500->domain);
1746 ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
1747 ARRAY_SIZE(ab8500_devs), NULL,
1748 ab8500->irq_base, ab8500->domain);
1753 /* Add battery management devices */
1754 ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
1755 ARRAY_SIZE(ab8500_bm_devs), NULL,
1756 ab8500->irq_base, ab8500->domain);
1758 dev_err(ab8500->dev, "error adding bm devices\n");
1761 if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1762 ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))
1763 ret = sysfs_create_group(&ab8500->dev->kobj,
1764 &ab9540_attr_group);
1766 ret = sysfs_create_group(&ab8500->dev->kobj,
1767 &ab8500_attr_group);
1769 if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1770 ab8500->chip_id >= AB8500_CUT2P0)
1771 ret = sysfs_create_group(&ab8500->dev->kobj,
1772 &ab8505_attr_group);
1775 dev_err(ab8500->dev, "error creating sysfs entries\n");
1780 static int ab8500_remove(struct platform_device *pdev)
1782 struct ab8500 *ab8500 = platform_get_drvdata(pdev);
1784 if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1785 ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))
1786 sysfs_remove_group(&ab8500->dev->kobj, &ab9540_attr_group);
1788 sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group);
1790 if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1791 ab8500->chip_id >= AB8500_CUT2P0)
1792 sysfs_remove_group(&ab8500->dev->kobj, &ab8505_attr_group);
1794 mfd_remove_devices(ab8500->dev);
1799 static const struct platform_device_id ab8500_id[] = {
1800 { "ab8500-core", AB8500_VERSION_AB8500 },
1801 { "ab8505-i2c", AB8500_VERSION_AB8505 },
1802 { "ab9540-i2c", AB8500_VERSION_AB9540 },
1803 { "ab8540-i2c", AB8500_VERSION_AB8540 },
1807 static struct platform_driver ab8500_core_driver = {
1809 .name = "ab8500-core",
1810 .owner = THIS_MODULE,
1812 .probe = ab8500_probe,
1813 .remove = ab8500_remove,
1814 .id_table = ab8500_id,
1817 static int __init ab8500_core_init(void)
1819 return platform_driver_register(&ab8500_core_driver);
1822 static void __exit ab8500_core_exit(void)
1824 platform_driver_unregister(&ab8500_core_driver);
1826 core_initcall(ab8500_core_init);
1827 module_exit(ab8500_core_exit);
1829 MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent");
1830 MODULE_DESCRIPTION("AB8500 MFD core");
1831 MODULE_LICENSE("GPL v2");