1 // SPDX-License-Identifier: GPL-2.0-only
3 * Base driver for Marvell 88PM8607
5 * Copyright (C) 2009 Marvell International Ltd.
7 * Author: Haojian Zhuang <haojian.zhuang@marvell.com>
10 #include <linux/kernel.h>
11 #include <linux/module.h>
12 #include <linux/err.h>
13 #include <linux/i2c.h>
14 #include <linux/irq.h>
15 #include <linux/interrupt.h>
16 #include <linux/irqdomain.h>
18 #include <linux/of_platform.h>
19 #include <linux/platform_device.h>
20 #include <linux/regmap.h>
21 #include <linux/slab.h>
22 #include <linux/mfd/core.h>
23 #include <linux/mfd/88pm860x.h>
24 #include <linux/regulator/machine.h>
25 #include <linux/power/charger-manager.h>
27 #define INT_STATUS_NUM 3
29 static struct resource bk0_resources[] = {
30 {2, 2, "duty cycle", IORESOURCE_REG, },
31 {3, 3, "always on", IORESOURCE_REG, },
32 {3, 3, "current", IORESOURCE_REG, },
34 static struct resource bk1_resources[] = {
35 {4, 4, "duty cycle", IORESOURCE_REG, },
36 {5, 5, "always on", IORESOURCE_REG, },
37 {5, 5, "current", IORESOURCE_REG, },
39 static struct resource bk2_resources[] = {
40 {6, 6, "duty cycle", IORESOURCE_REG, },
41 {7, 7, "always on", IORESOURCE_REG, },
42 {5, 5, "current", IORESOURCE_REG, },
45 static struct resource led0_resources[] = {
47 {0xd, 0xd, "control", IORESOURCE_REG, },
48 {0xc, 0xc, "blink", IORESOURCE_REG, },
50 static struct resource led1_resources[] = {
52 {0xe, 0xe, "control", IORESOURCE_REG, },
53 {0xc, 0xc, "blink", IORESOURCE_REG, },
55 static struct resource led2_resources[] = {
57 {0xf, 0xf, "control", IORESOURCE_REG, },
58 {0xc, 0xc, "blink", IORESOURCE_REG, },
60 static struct resource led3_resources[] = {
62 {0x9, 0x9, "control", IORESOURCE_REG, },
63 {0x8, 0x8, "blink", IORESOURCE_REG, },
65 static struct resource led4_resources[] = {
67 {0xa, 0xa, "control", IORESOURCE_REG, },
68 {0x8, 0x8, "blink", IORESOURCE_REG, },
70 static struct resource led5_resources[] = {
72 {0xb, 0xb, "control", IORESOURCE_REG, },
73 {0x8, 0x8, "blink", IORESOURCE_REG, },
76 static struct resource buck1_resources[] = {
77 {0x24, 0x24, "buck set", IORESOURCE_REG, },
79 static struct resource buck2_resources[] = {
80 {0x25, 0x25, "buck set", IORESOURCE_REG, },
82 static struct resource buck3_resources[] = {
83 {0x26, 0x26, "buck set", IORESOURCE_REG, },
85 static struct resource ldo1_resources[] = {
86 {0x10, 0x10, "ldo set", IORESOURCE_REG, },
88 static struct resource ldo2_resources[] = {
89 {0x11, 0x11, "ldo set", IORESOURCE_REG, },
91 static struct resource ldo3_resources[] = {
92 {0x12, 0x12, "ldo set", IORESOURCE_REG, },
94 static struct resource ldo4_resources[] = {
95 {0x13, 0x13, "ldo set", IORESOURCE_REG, },
97 static struct resource ldo5_resources[] = {
98 {0x14, 0x14, "ldo set", IORESOURCE_REG, },
100 static struct resource ldo6_resources[] = {
101 {0x15, 0x15, "ldo set", IORESOURCE_REG, },
103 static struct resource ldo7_resources[] = {
104 {0x16, 0x16, "ldo set", IORESOURCE_REG, },
106 static struct resource ldo8_resources[] = {
107 {0x17, 0x17, "ldo set", IORESOURCE_REG, },
109 static struct resource ldo9_resources[] = {
110 {0x18, 0x18, "ldo set", IORESOURCE_REG, },
112 static struct resource ldo10_resources[] = {
113 {0x19, 0x19, "ldo set", IORESOURCE_REG, },
115 static struct resource ldo12_resources[] = {
116 {0x1a, 0x1a, "ldo set", IORESOURCE_REG, },
118 static struct resource ldo_vibrator_resources[] = {
119 {0x28, 0x28, "ldo set", IORESOURCE_REG, },
121 static struct resource ldo14_resources[] = {
122 {0x1b, 0x1b, "ldo set", IORESOURCE_REG, },
125 static struct resource touch_resources[] = {
126 {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,},
129 static struct resource onkey_resources[] = {
130 {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,},
133 static struct resource codec_resources[] = {
134 /* Headset microphone insertion or removal */
135 {PM8607_IRQ_MICIN, PM8607_IRQ_MICIN, "micin", IORESOURCE_IRQ,},
136 /* Hook-switch press or release */
137 {PM8607_IRQ_HOOK, PM8607_IRQ_HOOK, "hook", IORESOURCE_IRQ,},
138 /* Headset insertion or removal */
139 {PM8607_IRQ_HEADSET, PM8607_IRQ_HEADSET, "headset", IORESOURCE_IRQ,},
141 {PM8607_IRQ_AUDIO_SHORT, PM8607_IRQ_AUDIO_SHORT, "audio-short",
145 static struct resource battery_resources[] = {
146 {PM8607_IRQ_CC, PM8607_IRQ_CC, "columb counter", IORESOURCE_IRQ,},
147 {PM8607_IRQ_BAT, PM8607_IRQ_BAT, "battery", IORESOURCE_IRQ,},
150 static struct resource charger_resources[] = {
151 {PM8607_IRQ_CHG, PM8607_IRQ_CHG, "charger detect", IORESOURCE_IRQ,},
152 {PM8607_IRQ_CHG_DONE, PM8607_IRQ_CHG_DONE, "charging done",
154 {PM8607_IRQ_CHG_FAIL, PM8607_IRQ_CHG_FAIL, "charging timeout",
156 {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging fault",
158 {PM8607_IRQ_GPADC1, PM8607_IRQ_GPADC1, "battery temperature",
160 {PM8607_IRQ_VBAT, PM8607_IRQ_VBAT, "battery voltage", IORESOURCE_IRQ,},
161 {PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage", IORESOURCE_IRQ,},
164 static struct resource rtc_resources[] = {
165 {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,},
168 static struct mfd_cell bk_devs[] = {
170 .name = "88pm860x-backlight",
172 .num_resources = ARRAY_SIZE(bk0_resources),
173 .resources = bk0_resources,
175 .name = "88pm860x-backlight",
177 .num_resources = ARRAY_SIZE(bk1_resources),
178 .resources = bk1_resources,
180 .name = "88pm860x-backlight",
182 .num_resources = ARRAY_SIZE(bk2_resources),
183 .resources = bk2_resources,
187 static struct mfd_cell led_devs[] = {
189 .name = "88pm860x-led",
191 .num_resources = ARRAY_SIZE(led0_resources),
192 .resources = led0_resources,
194 .name = "88pm860x-led",
196 .num_resources = ARRAY_SIZE(led1_resources),
197 .resources = led1_resources,
199 .name = "88pm860x-led",
201 .num_resources = ARRAY_SIZE(led2_resources),
202 .resources = led2_resources,
204 .name = "88pm860x-led",
206 .num_resources = ARRAY_SIZE(led3_resources),
207 .resources = led3_resources,
209 .name = "88pm860x-led",
211 .num_resources = ARRAY_SIZE(led4_resources),
212 .resources = led4_resources,
214 .name = "88pm860x-led",
216 .num_resources = ARRAY_SIZE(led5_resources),
217 .resources = led5_resources,
221 static struct mfd_cell reg_devs[] = {
223 .name = "88pm860x-regulator",
225 .num_resources = ARRAY_SIZE(buck1_resources),
226 .resources = buck1_resources,
228 .name = "88pm860x-regulator",
230 .num_resources = ARRAY_SIZE(buck2_resources),
231 .resources = buck2_resources,
233 .name = "88pm860x-regulator",
235 .num_resources = ARRAY_SIZE(buck3_resources),
236 .resources = buck3_resources,
238 .name = "88pm860x-regulator",
240 .num_resources = ARRAY_SIZE(ldo1_resources),
241 .resources = ldo1_resources,
243 .name = "88pm860x-regulator",
245 .num_resources = ARRAY_SIZE(ldo2_resources),
246 .resources = ldo2_resources,
248 .name = "88pm860x-regulator",
250 .num_resources = ARRAY_SIZE(ldo3_resources),
251 .resources = ldo3_resources,
253 .name = "88pm860x-regulator",
255 .num_resources = ARRAY_SIZE(ldo4_resources),
256 .resources = ldo4_resources,
258 .name = "88pm860x-regulator",
260 .num_resources = ARRAY_SIZE(ldo5_resources),
261 .resources = ldo5_resources,
263 .name = "88pm860x-regulator",
265 .num_resources = ARRAY_SIZE(ldo6_resources),
266 .resources = ldo6_resources,
268 .name = "88pm860x-regulator",
270 .num_resources = ARRAY_SIZE(ldo7_resources),
271 .resources = ldo7_resources,
273 .name = "88pm860x-regulator",
275 .num_resources = ARRAY_SIZE(ldo8_resources),
276 .resources = ldo8_resources,
278 .name = "88pm860x-regulator",
280 .num_resources = ARRAY_SIZE(ldo9_resources),
281 .resources = ldo9_resources,
283 .name = "88pm860x-regulator",
285 .num_resources = ARRAY_SIZE(ldo10_resources),
286 .resources = ldo10_resources,
288 .name = "88pm860x-regulator",
290 .num_resources = ARRAY_SIZE(ldo12_resources),
291 .resources = ldo12_resources,
293 .name = "88pm860x-regulator",
295 .num_resources = ARRAY_SIZE(ldo_vibrator_resources),
296 .resources = ldo_vibrator_resources,
298 .name = "88pm860x-regulator",
300 .num_resources = ARRAY_SIZE(ldo14_resources),
301 .resources = ldo14_resources,
305 static struct mfd_cell touch_devs[] = {
306 {"88pm860x-touch", -1,},
309 static struct mfd_cell onkey_devs[] = {
310 {"88pm860x-onkey", -1,},
313 static struct mfd_cell codec_devs[] = {
314 {"88pm860x-codec", -1,},
317 static struct regulator_consumer_supply preg_supply[] = {
318 REGULATOR_SUPPLY("preg", "charger-manager"),
321 static struct regulator_init_data preg_init_data = {
322 .num_consumer_supplies = ARRAY_SIZE(preg_supply),
323 .consumer_supplies = &preg_supply[0],
326 static struct charger_regulator chg_desc_regulator_data[] = {
327 { .regulator_name = "preg", },
330 static struct mfd_cell power_devs[] = {
331 {"88pm860x-battery", -1,},
332 {"88pm860x-charger", -1,},
333 {"88pm860x-preg", -1,},
334 {"charger-manager", -1,},
337 static struct mfd_cell rtc_devs[] = {
338 {"88pm860x-rtc", -1,},
342 struct pm860x_irq_data {
345 int enable; /* enable or not */
346 int offs; /* bit offset in mask register */
349 static struct pm860x_irq_data pm860x_irqs[] = {
350 [PM8607_IRQ_ONKEY] = {
351 .reg = PM8607_INT_STATUS1,
352 .mask_reg = PM8607_INT_MASK_1,
355 [PM8607_IRQ_EXTON] = {
356 .reg = PM8607_INT_STATUS1,
357 .mask_reg = PM8607_INT_MASK_1,
361 .reg = PM8607_INT_STATUS1,
362 .mask_reg = PM8607_INT_MASK_1,
366 .reg = PM8607_INT_STATUS1,
367 .mask_reg = PM8607_INT_MASK_1,
371 .reg = PM8607_INT_STATUS1,
372 .mask_reg = PM8607_INT_MASK_1,
376 .reg = PM8607_INT_STATUS1,
377 .mask_reg = PM8607_INT_MASK_1,
380 [PM8607_IRQ_VBAT] = {
381 .reg = PM8607_INT_STATUS2,
382 .mask_reg = PM8607_INT_MASK_2,
385 [PM8607_IRQ_VCHG] = {
386 .reg = PM8607_INT_STATUS2,
387 .mask_reg = PM8607_INT_MASK_2,
390 [PM8607_IRQ_VSYS] = {
391 .reg = PM8607_INT_STATUS2,
392 .mask_reg = PM8607_INT_MASK_2,
395 [PM8607_IRQ_TINT] = {
396 .reg = PM8607_INT_STATUS2,
397 .mask_reg = PM8607_INT_MASK_2,
400 [PM8607_IRQ_GPADC0] = {
401 .reg = PM8607_INT_STATUS2,
402 .mask_reg = PM8607_INT_MASK_2,
405 [PM8607_IRQ_GPADC1] = {
406 .reg = PM8607_INT_STATUS2,
407 .mask_reg = PM8607_INT_MASK_2,
410 [PM8607_IRQ_GPADC2] = {
411 .reg = PM8607_INT_STATUS2,
412 .mask_reg = PM8607_INT_MASK_2,
415 [PM8607_IRQ_GPADC3] = {
416 .reg = PM8607_INT_STATUS2,
417 .mask_reg = PM8607_INT_MASK_2,
420 [PM8607_IRQ_AUDIO_SHORT] = {
421 .reg = PM8607_INT_STATUS3,
422 .mask_reg = PM8607_INT_MASK_3,
426 .reg = PM8607_INT_STATUS3,
427 .mask_reg = PM8607_INT_MASK_3,
430 [PM8607_IRQ_HEADSET] = {
431 .reg = PM8607_INT_STATUS3,
432 .mask_reg = PM8607_INT_MASK_3,
435 [PM8607_IRQ_HOOK] = {
436 .reg = PM8607_INT_STATUS3,
437 .mask_reg = PM8607_INT_MASK_3,
440 [PM8607_IRQ_MICIN] = {
441 .reg = PM8607_INT_STATUS3,
442 .mask_reg = PM8607_INT_MASK_3,
445 [PM8607_IRQ_CHG_FAIL] = {
446 .reg = PM8607_INT_STATUS3,
447 .mask_reg = PM8607_INT_MASK_3,
450 [PM8607_IRQ_CHG_DONE] = {
451 .reg = PM8607_INT_STATUS3,
452 .mask_reg = PM8607_INT_MASK_3,
455 [PM8607_IRQ_CHG_FAULT] = {
456 .reg = PM8607_INT_STATUS3,
457 .mask_reg = PM8607_INT_MASK_3,
462 static irqreturn_t pm860x_irq(int irq, void *data)
464 struct pm860x_chip *chip = data;
465 struct pm860x_irq_data *irq_data;
466 struct i2c_client *i2c;
467 int read_reg = -1, value = 0;
470 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
471 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
472 irq_data = &pm860x_irqs[i];
473 if (read_reg != irq_data->reg) {
474 read_reg = irq_data->reg;
475 value = pm860x_reg_read(i2c, irq_data->reg);
477 if (value & irq_data->enable)
478 handle_nested_irq(chip->irq_base + i);
483 static void pm860x_irq_lock(struct irq_data *data)
485 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
487 mutex_lock(&chip->irq_lock);
490 static void pm860x_irq_sync_unlock(struct irq_data *data)
492 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
493 struct pm860x_irq_data *irq_data;
494 struct i2c_client *i2c;
495 static unsigned char cached[3] = {0x0, 0x0, 0x0};
496 unsigned char mask[3];
499 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
500 /* Load cached value. In initial, all IRQs are masked */
501 for (i = 0; i < 3; i++)
503 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
504 irq_data = &pm860x_irqs[i];
505 switch (irq_data->mask_reg) {
506 case PM8607_INT_MASK_1:
507 mask[0] &= ~irq_data->offs;
508 mask[0] |= irq_data->enable;
510 case PM8607_INT_MASK_2:
511 mask[1] &= ~irq_data->offs;
512 mask[1] |= irq_data->enable;
514 case PM8607_INT_MASK_3:
515 mask[2] &= ~irq_data->offs;
516 mask[2] |= irq_data->enable;
519 dev_err(chip->dev, "wrong IRQ\n");
523 /* update mask into registers */
524 for (i = 0; i < 3; i++) {
525 if (mask[i] != cached[i]) {
527 pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]);
531 mutex_unlock(&chip->irq_lock);
534 static void pm860x_irq_enable(struct irq_data *data)
536 pm860x_irqs[data->hwirq].enable = pm860x_irqs[data->hwirq].offs;
539 static void pm860x_irq_disable(struct irq_data *data)
541 pm860x_irqs[data->hwirq].enable = 0;
544 static struct irq_chip pm860x_irq_chip = {
546 .irq_bus_lock = pm860x_irq_lock,
547 .irq_bus_sync_unlock = pm860x_irq_sync_unlock,
548 .irq_enable = pm860x_irq_enable,
549 .irq_disable = pm860x_irq_disable,
552 static int pm860x_irq_domain_map(struct irq_domain *d, unsigned int virq,
555 irq_set_chip_data(virq, d->host_data);
556 irq_set_chip_and_handler(virq, &pm860x_irq_chip, handle_edge_irq);
557 irq_set_nested_thread(virq, 1);
558 irq_set_noprobe(virq);
562 static const struct irq_domain_ops pm860x_irq_domain_ops = {
563 .map = pm860x_irq_domain_map,
564 .xlate = irq_domain_xlate_onetwocell,
567 static int device_irq_init(struct pm860x_chip *chip,
568 struct pm860x_platform_data *pdata)
570 struct i2c_client *i2c = (chip->id == CHIP_PM8607) ?
571 chip->client : chip->companion;
572 unsigned char status_buf[INT_STATUS_NUM];
573 unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
574 int data, mask, ret = -EINVAL;
575 int nr_irqs, irq_base = -1;
576 struct device_node *node = i2c->dev.of_node;
578 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR
579 | PM8607_B0_MISC1_INT_MASK;
582 if (pdata && pdata->irq_mode) {
584 * irq_mode defines the way of clearing interrupt. If it's 1,
585 * clear IRQ by write. Otherwise, clear it by read.
586 * This control bit is valid from 88PM8607 B0 steping.
588 data |= PM8607_B0_MISC1_INT_CLEAR;
591 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data);
596 memset(status_buf, 0, INT_STATUS_NUM);
597 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1,
598 INT_STATUS_NUM, status_buf);
602 if (chip->irq_mode) {
603 /* clear interrupt status by write */
604 memset(status_buf, 0xFF, INT_STATUS_NUM);
605 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1,
606 INT_STATUS_NUM, status_buf);
608 /* clear interrupt status by read */
609 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1,
610 INT_STATUS_NUM, status_buf);
615 mutex_init(&chip->irq_lock);
617 if (pdata && pdata->irq_base)
618 irq_base = pdata->irq_base;
619 nr_irqs = ARRAY_SIZE(pm860x_irqs);
620 chip->irq_base = irq_alloc_descs(irq_base, 0, nr_irqs, 0);
621 if (chip->irq_base < 0) {
622 dev_err(&i2c->dev, "Failed to allocate interrupts, ret:%d\n",
627 irq_domain_add_legacy(node, nr_irqs, chip->irq_base, 0,
628 &pm860x_irq_domain_ops, chip);
629 chip->core_irq = i2c->irq;
633 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq,
634 flags | IRQF_ONESHOT, "88pm860x", chip);
636 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret);
646 static void device_irq_exit(struct pm860x_chip *chip)
649 free_irq(chip->core_irq, chip);
652 int pm8606_osc_enable(struct pm860x_chip *chip, unsigned short client)
655 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ?
656 chip->client : chip->companion;
658 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client);
659 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n",
660 __func__, chip->osc_vote,
663 mutex_lock(&chip->osc_lock);
664 /* Update voting status */
665 chip->osc_vote |= client;
666 /* If reference group is off - turn on*/
667 if (chip->osc_status != PM8606_REF_GP_OSC_ON) {
668 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN;
669 /* Enable Reference group Vsys */
670 if (pm860x_set_bits(i2c, PM8606_VSYS,
671 PM8606_VSYS_EN, PM8606_VSYS_EN))
674 /*Enable Internal Oscillator */
675 if (pm860x_set_bits(i2c, PM8606_MISC,
676 PM8606_MISC_OSC_EN, PM8606_MISC_OSC_EN))
678 /* Update status (only if writes succeed) */
679 chip->osc_status = PM8606_REF_GP_OSC_ON;
681 mutex_unlock(&chip->osc_lock);
683 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n",
684 __func__, chip->osc_vote,
685 chip->osc_status, ret);
688 mutex_unlock(&chip->osc_lock);
691 EXPORT_SYMBOL(pm8606_osc_enable);
693 int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client)
696 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ?
697 chip->client : chip->companion;
699 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client);
700 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n",
701 __func__, chip->osc_vote,
704 mutex_lock(&chip->osc_lock);
705 /* Update voting status */
706 chip->osc_vote &= ~(client);
708 * If reference group is off and this is the last client to release
711 if ((chip->osc_status != PM8606_REF_GP_OSC_OFF) &&
712 (chip->osc_vote == REF_GP_NO_CLIENTS)) {
713 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN;
714 /* Disable Reference group Vsys */
715 if (pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0))
717 /* Disable Internal Oscillator */
718 if (pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0))
720 chip->osc_status = PM8606_REF_GP_OSC_OFF;
722 mutex_unlock(&chip->osc_lock);
724 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n",
725 __func__, chip->osc_vote,
726 chip->osc_status, ret);
729 mutex_unlock(&chip->osc_lock);
732 EXPORT_SYMBOL(pm8606_osc_disable);
734 static void device_osc_init(struct i2c_client *i2c)
736 struct pm860x_chip *chip = i2c_get_clientdata(i2c);
738 mutex_init(&chip->osc_lock);
739 /* init portofino reference group voting and status */
740 /* Disable Reference group Vsys */
741 pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0);
742 /* Disable Internal Oscillator */
743 pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0);
745 chip->osc_vote = REF_GP_NO_CLIENTS;
746 chip->osc_status = PM8606_REF_GP_OSC_OFF;
749 static void device_bk_init(struct pm860x_chip *chip,
750 struct pm860x_platform_data *pdata)
754 if (pdata && pdata->backlight) {
755 if (pdata->num_backlights > ARRAY_SIZE(bk_devs))
756 pdata->num_backlights = ARRAY_SIZE(bk_devs);
757 for (i = 0; i < pdata->num_backlights; i++) {
758 bk_devs[i].platform_data = &pdata->backlight[i];
759 bk_devs[i].pdata_size =
760 sizeof(struct pm860x_backlight_pdata);
763 ret = mfd_add_devices(chip->dev, 0, bk_devs,
764 ARRAY_SIZE(bk_devs), NULL, 0, NULL);
766 dev_err(chip->dev, "Failed to add backlight subdev\n");
769 static void device_led_init(struct pm860x_chip *chip,
770 struct pm860x_platform_data *pdata)
774 if (pdata && pdata->led) {
775 if (pdata->num_leds > ARRAY_SIZE(led_devs))
776 pdata->num_leds = ARRAY_SIZE(led_devs);
777 for (i = 0; i < pdata->num_leds; i++) {
778 led_devs[i].platform_data = &pdata->led[i];
779 led_devs[i].pdata_size =
780 sizeof(struct pm860x_led_pdata);
783 ret = mfd_add_devices(chip->dev, 0, led_devs,
784 ARRAY_SIZE(led_devs), NULL, 0, NULL);
786 dev_err(chip->dev, "Failed to add led subdev\n");
791 static void device_regulator_init(struct pm860x_chip *chip,
792 struct pm860x_platform_data *pdata)
799 reg_devs[0].platform_data = pdata->buck1;
800 reg_devs[0].pdata_size = sizeof(struct regulator_init_data);
803 reg_devs[1].platform_data = pdata->buck2;
804 reg_devs[1].pdata_size = sizeof(struct regulator_init_data);
807 reg_devs[2].platform_data = pdata->buck3;
808 reg_devs[2].pdata_size = sizeof(struct regulator_init_data);
811 reg_devs[3].platform_data = pdata->ldo1;
812 reg_devs[3].pdata_size = sizeof(struct regulator_init_data);
815 reg_devs[4].platform_data = pdata->ldo2;
816 reg_devs[4].pdata_size = sizeof(struct regulator_init_data);
819 reg_devs[5].platform_data = pdata->ldo3;
820 reg_devs[5].pdata_size = sizeof(struct regulator_init_data);
823 reg_devs[6].platform_data = pdata->ldo4;
824 reg_devs[6].pdata_size = sizeof(struct regulator_init_data);
827 reg_devs[7].platform_data = pdata->ldo5;
828 reg_devs[7].pdata_size = sizeof(struct regulator_init_data);
831 reg_devs[8].platform_data = pdata->ldo6;
832 reg_devs[8].pdata_size = sizeof(struct regulator_init_data);
835 reg_devs[9].platform_data = pdata->ldo7;
836 reg_devs[9].pdata_size = sizeof(struct regulator_init_data);
839 reg_devs[10].platform_data = pdata->ldo8;
840 reg_devs[10].pdata_size = sizeof(struct regulator_init_data);
843 reg_devs[11].platform_data = pdata->ldo9;
844 reg_devs[11].pdata_size = sizeof(struct regulator_init_data);
847 reg_devs[12].platform_data = pdata->ldo10;
848 reg_devs[12].pdata_size = sizeof(struct regulator_init_data);
851 reg_devs[13].platform_data = pdata->ldo12;
852 reg_devs[13].pdata_size = sizeof(struct regulator_init_data);
854 if (pdata->ldo_vibrator) {
855 reg_devs[14].platform_data = pdata->ldo_vibrator;
856 reg_devs[14].pdata_size = sizeof(struct regulator_init_data);
859 reg_devs[15].platform_data = pdata->ldo14;
860 reg_devs[15].pdata_size = sizeof(struct regulator_init_data);
862 ret = mfd_add_devices(chip->dev, 0, reg_devs,
863 ARRAY_SIZE(reg_devs), NULL, 0, NULL);
865 dev_err(chip->dev, "Failed to add regulator subdev\n");
870 static void device_rtc_init(struct pm860x_chip *chip,
871 struct pm860x_platform_data *pdata)
878 rtc_devs[0].platform_data = pdata->rtc;
879 rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata);
880 rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources);
881 rtc_devs[0].resources = &rtc_resources[0];
882 ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0],
883 ARRAY_SIZE(rtc_devs), &rtc_resources[0],
884 chip->irq_base, NULL);
886 dev_err(chip->dev, "Failed to add rtc subdev\n");
889 static void device_touch_init(struct pm860x_chip *chip,
890 struct pm860x_platform_data *pdata)
897 touch_devs[0].platform_data = pdata->touch;
898 touch_devs[0].pdata_size = sizeof(struct pm860x_touch_pdata);
899 touch_devs[0].num_resources = ARRAY_SIZE(touch_resources);
900 touch_devs[0].resources = &touch_resources[0];
901 ret = mfd_add_devices(chip->dev, 0, &touch_devs[0],
902 ARRAY_SIZE(touch_devs), &touch_resources[0],
903 chip->irq_base, NULL);
905 dev_err(chip->dev, "Failed to add touch subdev\n");
908 static void device_power_init(struct pm860x_chip *chip,
909 struct pm860x_platform_data *pdata)
916 power_devs[0].platform_data = pdata->power;
917 power_devs[0].pdata_size = sizeof(struct pm860x_power_pdata);
918 power_devs[0].num_resources = ARRAY_SIZE(battery_resources);
919 power_devs[0].resources = &battery_resources[0],
920 ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1,
921 &battery_resources[0], chip->irq_base, NULL);
923 dev_err(chip->dev, "Failed to add battery subdev\n");
925 power_devs[1].platform_data = pdata->power;
926 power_devs[1].pdata_size = sizeof(struct pm860x_power_pdata);
927 power_devs[1].num_resources = ARRAY_SIZE(charger_resources);
928 power_devs[1].resources = &charger_resources[0],
929 ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1,
930 &charger_resources[0], chip->irq_base, NULL);
932 dev_err(chip->dev, "Failed to add charger subdev\n");
934 power_devs[2].platform_data = &preg_init_data;
935 power_devs[2].pdata_size = sizeof(struct regulator_init_data);
936 ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1,
937 NULL, chip->irq_base, NULL);
939 dev_err(chip->dev, "Failed to add preg subdev\n");
941 if (pdata->chg_desc) {
942 pdata->chg_desc->charger_regulators =
943 &chg_desc_regulator_data[0];
944 pdata->chg_desc->num_charger_regulators =
945 ARRAY_SIZE(chg_desc_regulator_data),
946 power_devs[3].platform_data = pdata->chg_desc;
947 power_devs[3].pdata_size = sizeof(*pdata->chg_desc);
948 ret = mfd_add_devices(chip->dev, 0, &power_devs[3], 1,
949 NULL, chip->irq_base, NULL);
951 dev_err(chip->dev, "Failed to add chg-manager subdev\n");
955 static void device_onkey_init(struct pm860x_chip *chip,
956 struct pm860x_platform_data *pdata)
960 onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources);
961 onkey_devs[0].resources = &onkey_resources[0],
962 ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0],
963 ARRAY_SIZE(onkey_devs), &onkey_resources[0],
964 chip->irq_base, NULL);
966 dev_err(chip->dev, "Failed to add onkey subdev\n");
969 static void device_codec_init(struct pm860x_chip *chip,
970 struct pm860x_platform_data *pdata)
974 codec_devs[0].num_resources = ARRAY_SIZE(codec_resources);
975 codec_devs[0].resources = &codec_resources[0],
976 ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
977 ARRAY_SIZE(codec_devs), &codec_resources[0], 0,
980 dev_err(chip->dev, "Failed to add codec subdev\n");
983 static void device_8607_init(struct pm860x_chip *chip,
984 struct i2c_client *i2c,
985 struct pm860x_platform_data *pdata)
989 ret = pm860x_reg_read(i2c, PM8607_CHIP_ID);
991 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret);
994 switch (ret & PM8607_VERSION_MASK) {
997 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n",
1002 "Failed to detect Marvell 88PM8607. Chip ID: %02x\n",
1007 ret = pm860x_reg_read(i2c, PM8607_BUCK3);
1009 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret);
1012 if (ret & PM8607_BUCK3_DOUBLE)
1013 chip->buck3_double = 1;
1015 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1);
1017 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret);
1021 if (pdata && (pdata->i2c_port == PI2C_PORT))
1022 data = PM8607_B0_MISC1_PI2C;
1025 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data);
1027 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret);
1031 ret = device_irq_init(chip, pdata);
1035 device_regulator_init(chip, pdata);
1036 device_rtc_init(chip, pdata);
1037 device_onkey_init(chip, pdata);
1038 device_touch_init(chip, pdata);
1039 device_power_init(chip, pdata);
1040 device_codec_init(chip, pdata);
1045 static void device_8606_init(struct pm860x_chip *chip,
1046 struct i2c_client *i2c,
1047 struct pm860x_platform_data *pdata)
1049 device_osc_init(i2c);
1050 device_bk_init(chip, pdata);
1051 device_led_init(chip, pdata);
1054 static int pm860x_device_init(struct pm860x_chip *chip,
1055 struct pm860x_platform_data *pdata)
1061 device_8606_init(chip, chip->client, pdata);
1064 device_8607_init(chip, chip->client, pdata);
1068 if (chip->companion) {
1071 device_8606_init(chip, chip->companion, pdata);
1074 device_8607_init(chip, chip->companion, pdata);
1082 static void pm860x_device_exit(struct pm860x_chip *chip)
1084 device_irq_exit(chip);
1085 mfd_remove_devices(chip->dev);
1088 static int verify_addr(struct i2c_client *i2c)
1090 unsigned short addr_8607[] = {0x30, 0x34};
1091 unsigned short addr_8606[] = {0x10, 0x11};
1096 size = ARRAY_SIZE(addr_8606);
1097 for (i = 0; i < size; i++) {
1098 if (i2c->addr == *(addr_8606 + i))
1101 size = ARRAY_SIZE(addr_8607);
1102 for (i = 0; i < size; i++) {
1103 if (i2c->addr == *(addr_8607 + i))
1109 static const struct regmap_config pm860x_regmap_config = {
1114 static int pm860x_dt_init(struct device_node *np,
1116 struct pm860x_platform_data *pdata)
1120 if (of_get_property(np, "marvell,88pm860x-irq-read-clr", NULL))
1121 pdata->irq_mode = 1;
1122 ret = of_property_read_u32(np, "marvell,88pm860x-slave-addr",
1123 &pdata->companion_addr);
1126 "Not found \"marvell,88pm860x-slave-addr\" property\n");
1127 pdata->companion_addr = 0;
1132 static int pm860x_probe(struct i2c_client *client)
1134 struct pm860x_platform_data *pdata = dev_get_platdata(&client->dev);
1135 struct device_node *node = client->dev.of_node;
1136 struct pm860x_chip *chip;
1139 if (node && !pdata) {
1140 /* parse DT to get platform data */
1141 pdata = devm_kzalloc(&client->dev,
1142 sizeof(struct pm860x_platform_data),
1146 ret = pm860x_dt_init(node, &client->dev, pdata);
1149 } else if (!pdata) {
1150 pr_info("No platform data in %s!\n", __func__);
1154 chip = devm_kzalloc(&client->dev,
1155 sizeof(struct pm860x_chip), GFP_KERNEL);
1159 chip->id = verify_addr(client);
1160 chip->regmap = devm_regmap_init_i2c(client, &pm860x_regmap_config);
1161 if (IS_ERR(chip->regmap)) {
1162 ret = PTR_ERR(chip->regmap);
1163 dev_err(&client->dev, "Failed to allocate register map: %d\n",
1167 chip->client = client;
1168 i2c_set_clientdata(client, chip);
1169 chip->dev = &client->dev;
1170 dev_set_drvdata(chip->dev, chip);
1173 * Both client and companion client shares same platform driver.
1174 * Driver distinguishes them by pdata->companion_addr.
1175 * pdata->companion_addr is only assigned if companion chip exists.
1176 * At the same time, the companion_addr shouldn't equal to client
1179 if (pdata->companion_addr && (pdata->companion_addr != client->addr)) {
1180 chip->companion_addr = pdata->companion_addr;
1181 chip->companion = i2c_new_dummy_device(chip->client->adapter,
1182 chip->companion_addr);
1183 if (IS_ERR(chip->companion)) {
1184 dev_err(&client->dev,
1185 "Failed to allocate I2C companion device\n");
1186 return PTR_ERR(chip->companion);
1188 chip->regmap_companion = regmap_init_i2c(chip->companion,
1189 &pm860x_regmap_config);
1190 if (IS_ERR(chip->regmap_companion)) {
1191 ret = PTR_ERR(chip->regmap_companion);
1192 dev_err(&chip->companion->dev,
1193 "Failed to allocate register map: %d\n", ret);
1194 i2c_unregister_device(chip->companion);
1197 i2c_set_clientdata(chip->companion, chip);
1200 pm860x_device_init(chip, pdata);
1204 static int pm860x_remove(struct i2c_client *client)
1206 struct pm860x_chip *chip = i2c_get_clientdata(client);
1208 pm860x_device_exit(chip);
1209 if (chip->companion) {
1210 regmap_exit(chip->regmap_companion);
1211 i2c_unregister_device(chip->companion);
1216 #ifdef CONFIG_PM_SLEEP
1217 static int pm860x_suspend(struct device *dev)
1219 struct i2c_client *client = to_i2c_client(dev);
1220 struct pm860x_chip *chip = i2c_get_clientdata(client);
1222 if (device_may_wakeup(dev) && chip->wakeup_flag)
1223 enable_irq_wake(chip->core_irq);
1227 static int pm860x_resume(struct device *dev)
1229 struct i2c_client *client = to_i2c_client(dev);
1230 struct pm860x_chip *chip = i2c_get_clientdata(client);
1232 if (device_may_wakeup(dev) && chip->wakeup_flag)
1233 disable_irq_wake(chip->core_irq);
1238 static SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume);
1240 static const struct i2c_device_id pm860x_id_table[] = {
1244 MODULE_DEVICE_TABLE(i2c, pm860x_id_table);
1246 static const struct of_device_id pm860x_dt_ids[] = {
1247 { .compatible = "marvell,88pm860x", },
1250 MODULE_DEVICE_TABLE(of, pm860x_dt_ids);
1252 static struct i2c_driver pm860x_driver = {
1255 .pm = &pm860x_pm_ops,
1256 .of_match_table = pm860x_dt_ids,
1258 .probe_new = pm860x_probe,
1259 .remove = pm860x_remove,
1260 .id_table = pm860x_id_table,
1263 static int __init pm860x_i2c_init(void)
1267 ret = i2c_add_driver(&pm860x_driver);
1269 pr_err("Failed to register 88PM860x I2C driver: %d\n", ret);
1272 subsys_initcall(pm860x_i2c_init);
1274 static void __exit pm860x_i2c_exit(void)
1276 i2c_del_driver(&pm860x_driver);
1278 module_exit(pm860x_i2c_exit);
1280 MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x");
1281 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
1282 MODULE_LICENSE("GPL");