1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Base driver for Marvell 88PM8607
4 *
5 * Copyright (C) 2009 Marvell International Ltd.
6 *
7 * Author: Haojian Zhuang <haojian.zhuang@marvell.com>
8 */
9
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>
17 #include <linux/of.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>
26
27 #define INT_STATUS_NUM 3
28
29 static const struct resource bk0_resources[] = {
30 {2, 2, "duty cycle", IORESOURCE_REG, },
31 {3, 3, "always on", IORESOURCE_REG, },
32 {3, 3, "current", IORESOURCE_REG, },
33 };
34 static const struct resource bk1_resources[] = {
35 {4, 4, "duty cycle", IORESOURCE_REG, },
36 {5, 5, "always on", IORESOURCE_REG, },
37 {5, 5, "current", IORESOURCE_REG, },
38 };
39 static const struct resource bk2_resources[] = {
40 {6, 6, "duty cycle", IORESOURCE_REG, },
41 {7, 7, "always on", IORESOURCE_REG, },
42 {5, 5, "current", IORESOURCE_REG, },
43 };
44
45 static const struct resource led0_resources[] = {
46 /* RGB1 Red LED */
47 {0xd, 0xd, "control", IORESOURCE_REG, },
48 {0xc, 0xc, "blink", IORESOURCE_REG, },
49 };
50 static const struct resource led1_resources[] = {
51 /* RGB1 Green LED */
52 {0xe, 0xe, "control", IORESOURCE_REG, },
53 {0xc, 0xc, "blink", IORESOURCE_REG, },
54 };
55 static const struct resource led2_resources[] = {
56 /* RGB1 Blue LED */
57 {0xf, 0xf, "control", IORESOURCE_REG, },
58 {0xc, 0xc, "blink", IORESOURCE_REG, },
59 };
60 static const struct resource led3_resources[] = {
61 /* RGB2 Red LED */
62 {0x9, 0x9, "control", IORESOURCE_REG, },
63 {0x8, 0x8, "blink", IORESOURCE_REG, },
64 };
65 static const struct resource led4_resources[] = {
66 /* RGB2 Green LED */
67 {0xa, 0xa, "control", IORESOURCE_REG, },
68 {0x8, 0x8, "blink", IORESOURCE_REG, },
69 };
70 static const struct resource led5_resources[] = {
71 /* RGB2 Blue LED */
72 {0xb, 0xb, "control", IORESOURCE_REG, },
73 {0x8, 0x8, "blink", IORESOURCE_REG, },
74 };
75
76 static const struct resource buck1_resources[] = {
77 {0x24, 0x24, "buck set", IORESOURCE_REG, },
78 };
79 static const struct resource buck2_resources[] = {
80 {0x25, 0x25, "buck set", IORESOURCE_REG, },
81 };
82 static const struct resource buck3_resources[] = {
83 {0x26, 0x26, "buck set", IORESOURCE_REG, },
84 };
85 static const struct resource ldo1_resources[] = {
86 {0x10, 0x10, "ldo set", IORESOURCE_REG, },
87 };
88 static const struct resource ldo2_resources[] = {
89 {0x11, 0x11, "ldo set", IORESOURCE_REG, },
90 };
91 static const struct resource ldo3_resources[] = {
92 {0x12, 0x12, "ldo set", IORESOURCE_REG, },
93 };
94 static const struct resource ldo4_resources[] = {
95 {0x13, 0x13, "ldo set", IORESOURCE_REG, },
96 };
97 static const struct resource ldo5_resources[] = {
98 {0x14, 0x14, "ldo set", IORESOURCE_REG, },
99 };
100 static const struct resource ldo6_resources[] = {
101 {0x15, 0x15, "ldo set", IORESOURCE_REG, },
102 };
103 static const struct resource ldo7_resources[] = {
104 {0x16, 0x16, "ldo set", IORESOURCE_REG, },
105 };
106 static const struct resource ldo8_resources[] = {
107 {0x17, 0x17, "ldo set", IORESOURCE_REG, },
108 };
109 static const struct resource ldo9_resources[] = {
110 {0x18, 0x18, "ldo set", IORESOURCE_REG, },
111 };
112 static const struct resource ldo10_resources[] = {
113 {0x19, 0x19, "ldo set", IORESOURCE_REG, },
114 };
115 static const struct resource ldo12_resources[] = {
116 {0x1a, 0x1a, "ldo set", IORESOURCE_REG, },
117 };
118 static const struct resource ldo_vibrator_resources[] = {
119 {0x28, 0x28, "ldo set", IORESOURCE_REG, },
120 };
121 static const struct resource ldo14_resources[] = {
122 {0x1b, 0x1b, "ldo set", IORESOURCE_REG, },
123 };
124
125 static struct resource touch_resources[] = {
126 {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,},
127 };
128
129 static struct resource onkey_resources[] = {
130 {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,},
131 };
132
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,},
140 /* Audio short */
141 {PM8607_IRQ_AUDIO_SHORT, PM8607_IRQ_AUDIO_SHORT, "audio-short",
142 IORESOURCE_IRQ,},
143 };
144
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,},
148 };
149
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",
153 IORESOURCE_IRQ,},
154 {PM8607_IRQ_CHG_FAIL, PM8607_IRQ_CHG_FAIL, "charging timeout",
155 IORESOURCE_IRQ,},
156 {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging fault",
157 IORESOURCE_IRQ,},
158 {PM8607_IRQ_GPADC1, PM8607_IRQ_GPADC1, "battery temperature",
159 IORESOURCE_IRQ,},
160 {PM8607_IRQ_VBAT, PM8607_IRQ_VBAT, "battery voltage", IORESOURCE_IRQ,},
161 {PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage", IORESOURCE_IRQ,},
162 };
163
164 static struct resource rtc_resources[] = {
165 {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,},
166 };
167
168 static struct mfd_cell bk_devs[] = {
169 {
170 .name = "88pm860x-backlight",
171 .id = 0,
172 .num_resources = ARRAY_SIZE(bk0_resources),
173 .resources = bk0_resources,
174 }, {
175 .name = "88pm860x-backlight",
176 .id = 1,
177 .num_resources = ARRAY_SIZE(bk1_resources),
178 .resources = bk1_resources,
179 }, {
180 .name = "88pm860x-backlight",
181 .id = 2,
182 .num_resources = ARRAY_SIZE(bk2_resources),
183 .resources = bk2_resources,
184 },
185 };
186
187 static struct mfd_cell led_devs[] = {
188 {
189 .name = "88pm860x-led",
190 .id = 0,
191 .num_resources = ARRAY_SIZE(led0_resources),
192 .resources = led0_resources,
193 }, {
194 .name = "88pm860x-led",
195 .id = 1,
196 .num_resources = ARRAY_SIZE(led1_resources),
197 .resources = led1_resources,
198 }, {
199 .name = "88pm860x-led",
200 .id = 2,
201 .num_resources = ARRAY_SIZE(led2_resources),
202 .resources = led2_resources,
203 }, {
204 .name = "88pm860x-led",
205 .id = 3,
206 .num_resources = ARRAY_SIZE(led3_resources),
207 .resources = led3_resources,
208 }, {
209 .name = "88pm860x-led",
210 .id = 4,
211 .num_resources = ARRAY_SIZE(led4_resources),
212 .resources = led4_resources,
213 }, {
214 .name = "88pm860x-led",
215 .id = 5,
216 .num_resources = ARRAY_SIZE(led5_resources),
217 .resources = led5_resources,
218 },
219 };
220
221 static struct mfd_cell reg_devs[] = {
222 {
223 .name = "88pm860x-regulator",
224 .id = 0,
225 .num_resources = ARRAY_SIZE(buck1_resources),
226 .resources = buck1_resources,
227 }, {
228 .name = "88pm860x-regulator",
229 .id = 1,
230 .num_resources = ARRAY_SIZE(buck2_resources),
231 .resources = buck2_resources,
232 }, {
233 .name = "88pm860x-regulator",
234 .id = 2,
235 .num_resources = ARRAY_SIZE(buck3_resources),
236 .resources = buck3_resources,
237 }, {
238 .name = "88pm860x-regulator",
239 .id = 3,
240 .num_resources = ARRAY_SIZE(ldo1_resources),
241 .resources = ldo1_resources,
242 }, {
243 .name = "88pm860x-regulator",
244 .id = 4,
245 .num_resources = ARRAY_SIZE(ldo2_resources),
246 .resources = ldo2_resources,
247 }, {
248 .name = "88pm860x-regulator",
249 .id = 5,
250 .num_resources = ARRAY_SIZE(ldo3_resources),
251 .resources = ldo3_resources,
252 }, {
253 .name = "88pm860x-regulator",
254 .id = 6,
255 .num_resources = ARRAY_SIZE(ldo4_resources),
256 .resources = ldo4_resources,
257 }, {
258 .name = "88pm860x-regulator",
259 .id = 7,
260 .num_resources = ARRAY_SIZE(ldo5_resources),
261 .resources = ldo5_resources,
262 }, {
263 .name = "88pm860x-regulator",
264 .id = 8,
265 .num_resources = ARRAY_SIZE(ldo6_resources),
266 .resources = ldo6_resources,
267 }, {
268 .name = "88pm860x-regulator",
269 .id = 9,
270 .num_resources = ARRAY_SIZE(ldo7_resources),
271 .resources = ldo7_resources,
272 }, {
273 .name = "88pm860x-regulator",
274 .id = 10,
275 .num_resources = ARRAY_SIZE(ldo8_resources),
276 .resources = ldo8_resources,
277 }, {
278 .name = "88pm860x-regulator",
279 .id = 11,
280 .num_resources = ARRAY_SIZE(ldo9_resources),
281 .resources = ldo9_resources,
282 }, {
283 .name = "88pm860x-regulator",
284 .id = 12,
285 .num_resources = ARRAY_SIZE(ldo10_resources),
286 .resources = ldo10_resources,
287 }, {
288 .name = "88pm860x-regulator",
289 .id = 13,
290 .num_resources = ARRAY_SIZE(ldo12_resources),
291 .resources = ldo12_resources,
292 }, {
293 .name = "88pm860x-regulator",
294 .id = 14,
295 .num_resources = ARRAY_SIZE(ldo_vibrator_resources),
296 .resources = ldo_vibrator_resources,
297 }, {
298 .name = "88pm860x-regulator",
299 .id = 15,
300 .num_resources = ARRAY_SIZE(ldo14_resources),
301 .resources = ldo14_resources,
302 },
303 };
304
305 static struct mfd_cell touch_devs[] = {
306 {"88pm860x-touch", -1,},
307 };
308
309 static struct mfd_cell onkey_devs[] = {
310 {"88pm860x-onkey", -1,},
311 };
312
313 static struct mfd_cell codec_devs[] = {
314 {"88pm860x-codec", -1,},
315 };
316
317 static struct regulator_consumer_supply preg_supply[] = {
318 REGULATOR_SUPPLY("preg", "charger-manager"),
319 };
320
321 static struct regulator_init_data preg_init_data = {
322 .num_consumer_supplies = ARRAY_SIZE(preg_supply),
323 .consumer_supplies = &preg_supply[0],
324 };
325
326 static struct charger_regulator chg_desc_regulator_data[] = {
327 { .regulator_name = "preg", },
328 };
329
330 static struct mfd_cell power_devs[] = {
331 {"88pm860x-battery", -1,},
332 {"88pm860x-charger", -1,},
333 {"88pm860x-preg", -1,},
334 {"charger-manager", -1,},
335 };
336
337 static struct mfd_cell rtc_devs[] = {
338 {"88pm860x-rtc", -1,},
339 };
340
341
342 struct pm860x_irq_data {
343 int reg;
344 int mask_reg;
345 int enable; /* enable or not */
346 int offs; /* bit offset in mask register */
347 };
348
349 static struct pm860x_irq_data pm860x_irqs[] = {
350 [PM8607_IRQ_ONKEY] = {
351 .reg = PM8607_INT_STATUS1,
352 .mask_reg = PM8607_INT_MASK_1,
353 .offs = 1 << 0,
354 },
355 [PM8607_IRQ_EXTON] = {
356 .reg = PM8607_INT_STATUS1,
357 .mask_reg = PM8607_INT_MASK_1,
358 .offs = 1 << 1,
359 },
360 [PM8607_IRQ_CHG] = {
361 .reg = PM8607_INT_STATUS1,
362 .mask_reg = PM8607_INT_MASK_1,
363 .offs = 1 << 2,
364 },
365 [PM8607_IRQ_BAT] = {
366 .reg = PM8607_INT_STATUS1,
367 .mask_reg = PM8607_INT_MASK_1,
368 .offs = 1 << 3,
369 },
370 [PM8607_IRQ_RTC] = {
371 .reg = PM8607_INT_STATUS1,
372 .mask_reg = PM8607_INT_MASK_1,
373 .offs = 1 << 4,
374 },
375 [PM8607_IRQ_CC] = {
376 .reg = PM8607_INT_STATUS1,
377 .mask_reg = PM8607_INT_MASK_1,
378 .offs = 1 << 5,
379 },
380 [PM8607_IRQ_VBAT] = {
381 .reg = PM8607_INT_STATUS2,
382 .mask_reg = PM8607_INT_MASK_2,
383 .offs = 1 << 0,
384 },
385 [PM8607_IRQ_VCHG] = {
386 .reg = PM8607_INT_STATUS2,
387 .mask_reg = PM8607_INT_MASK_2,
388 .offs = 1 << 1,
389 },
390 [PM8607_IRQ_VSYS] = {
391 .reg = PM8607_INT_STATUS2,
392 .mask_reg = PM8607_INT_MASK_2,
393 .offs = 1 << 2,
394 },
395 [PM8607_IRQ_TINT] = {
396 .reg = PM8607_INT_STATUS2,
397 .mask_reg = PM8607_INT_MASK_2,
398 .offs = 1 << 3,
399 },
400 [PM8607_IRQ_GPADC0] = {
401 .reg = PM8607_INT_STATUS2,
402 .mask_reg = PM8607_INT_MASK_2,
403 .offs = 1 << 4,
404 },
405 [PM8607_IRQ_GPADC1] = {
406 .reg = PM8607_INT_STATUS2,
407 .mask_reg = PM8607_INT_MASK_2,
408 .offs = 1 << 5,
409 },
410 [PM8607_IRQ_GPADC2] = {
411 .reg = PM8607_INT_STATUS2,
412 .mask_reg = PM8607_INT_MASK_2,
413 .offs = 1 << 6,
414 },
415 [PM8607_IRQ_GPADC3] = {
416 .reg = PM8607_INT_STATUS2,
417 .mask_reg = PM8607_INT_MASK_2,
418 .offs = 1 << 7,
419 },
420 [PM8607_IRQ_AUDIO_SHORT] = {
421 .reg = PM8607_INT_STATUS3,
422 .mask_reg = PM8607_INT_MASK_3,
423 .offs = 1 << 0,
424 },
425 [PM8607_IRQ_PEN] = {
426 .reg = PM8607_INT_STATUS3,
427 .mask_reg = PM8607_INT_MASK_3,
428 .offs = 1 << 1,
429 },
430 [PM8607_IRQ_HEADSET] = {
431 .reg = PM8607_INT_STATUS3,
432 .mask_reg = PM8607_INT_MASK_3,
433 .offs = 1 << 2,
434 },
435 [PM8607_IRQ_HOOK] = {
436 .reg = PM8607_INT_STATUS3,
437 .mask_reg = PM8607_INT_MASK_3,
438 .offs = 1 << 3,
439 },
440 [PM8607_IRQ_MICIN] = {
441 .reg = PM8607_INT_STATUS3,
442 .mask_reg = PM8607_INT_MASK_3,
443 .offs = 1 << 4,
444 },
445 [PM8607_IRQ_CHG_FAIL] = {
446 .reg = PM8607_INT_STATUS3,
447 .mask_reg = PM8607_INT_MASK_3,
448 .offs = 1 << 5,
449 },
450 [PM8607_IRQ_CHG_DONE] = {
451 .reg = PM8607_INT_STATUS3,
452 .mask_reg = PM8607_INT_MASK_3,
453 .offs = 1 << 6,
454 },
455 [PM8607_IRQ_CHG_FAULT] = {
456 .reg = PM8607_INT_STATUS3,
457 .mask_reg = PM8607_INT_MASK_3,
458 .offs = 1 << 7,
459 },
460 };
461
pm860x_irq(int irq,void * data)462 static irqreturn_t pm860x_irq(int irq, void *data)
463 {
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;
468 int i;
469
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);
476 }
477 if (value & irq_data->enable)
478 handle_nested_irq(chip->irq_base + i);
479 }
480 return IRQ_HANDLED;
481 }
482
pm860x_irq_lock(struct irq_data * data)483 static void pm860x_irq_lock(struct irq_data *data)
484 {
485 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
486
487 mutex_lock(&chip->irq_lock);
488 }
489
pm860x_irq_sync_unlock(struct irq_data * data)490 static void pm860x_irq_sync_unlock(struct irq_data *data)
491 {
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];
497 int i;
498
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++)
502 mask[i] = cached[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;
509 break;
510 case PM8607_INT_MASK_2:
511 mask[1] &= ~irq_data->offs;
512 mask[1] |= irq_data->enable;
513 break;
514 case PM8607_INT_MASK_3:
515 mask[2] &= ~irq_data->offs;
516 mask[2] |= irq_data->enable;
517 break;
518 default:
519 dev_err(chip->dev, "wrong IRQ\n");
520 break;
521 }
522 }
523 /* update mask into registers */
524 for (i = 0; i < 3; i++) {
525 if (mask[i] != cached[i]) {
526 cached[i] = mask[i];
527 pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]);
528 }
529 }
530
531 mutex_unlock(&chip->irq_lock);
532 }
533
pm860x_irq_enable(struct irq_data * data)534 static void pm860x_irq_enable(struct irq_data *data)
535 {
536 pm860x_irqs[data->hwirq].enable = pm860x_irqs[data->hwirq].offs;
537 }
538
pm860x_irq_disable(struct irq_data * data)539 static void pm860x_irq_disable(struct irq_data *data)
540 {
541 pm860x_irqs[data->hwirq].enable = 0;
542 }
543
544 static struct irq_chip pm860x_irq_chip = {
545 .name = "88pm860x",
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,
550 };
551
pm860x_irq_domain_map(struct irq_domain * d,unsigned int virq,irq_hw_number_t hw)552 static int pm860x_irq_domain_map(struct irq_domain *d, unsigned int virq,
553 irq_hw_number_t hw)
554 {
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);
559 return 0;
560 }
561
562 static const struct irq_domain_ops pm860x_irq_domain_ops = {
563 .map = pm860x_irq_domain_map,
564 .xlate = irq_domain_xlate_onetwocell,
565 };
566
device_irq_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)567 static int device_irq_init(struct pm860x_chip *chip,
568 struct pm860x_platform_data *pdata)
569 {
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
577 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR
578 | PM8607_B0_MISC1_INT_MASK;
579 data = 0;
580 chip->irq_mode = 0;
581 if (pdata && pdata->irq_mode) {
582 /*
583 * irq_mode defines the way of clearing interrupt. If it's 1,
584 * clear IRQ by write. Otherwise, clear it by read.
585 * This control bit is valid from 88PM8607 B0 steping.
586 */
587 data |= PM8607_B0_MISC1_INT_CLEAR;
588 chip->irq_mode = 1;
589 }
590 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data);
591 if (ret < 0)
592 goto out;
593
594 /* mask all IRQs */
595 memset(status_buf, 0, INT_STATUS_NUM);
596 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1,
597 INT_STATUS_NUM, status_buf);
598 if (ret < 0)
599 goto out;
600
601 if (chip->irq_mode) {
602 /* clear interrupt status by write */
603 memset(status_buf, 0xFF, INT_STATUS_NUM);
604 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1,
605 INT_STATUS_NUM, status_buf);
606 } else {
607 /* clear interrupt status by read */
608 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1,
609 INT_STATUS_NUM, status_buf);
610 }
611 if (ret < 0)
612 goto out;
613
614 mutex_init(&chip->irq_lock);
615
616 if (pdata && pdata->irq_base)
617 irq_base = pdata->irq_base;
618 nr_irqs = ARRAY_SIZE(pm860x_irqs);
619 chip->irq_base = irq_alloc_descs(irq_base, 0, nr_irqs, 0);
620 if (chip->irq_base < 0) {
621 dev_err(&i2c->dev, "Failed to allocate interrupts, ret:%d\n",
622 chip->irq_base);
623 ret = -EBUSY;
624 goto out;
625 }
626 irq_domain_create_legacy(dev_fwnode(&i2c->dev), nr_irqs, chip->irq_base, 0,
627 &pm860x_irq_domain_ops, chip);
628 chip->core_irq = i2c->irq;
629 if (!chip->core_irq)
630 goto out;
631
632 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq,
633 flags | IRQF_ONESHOT, "88pm860x", chip);
634 if (ret) {
635 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret);
636 chip->core_irq = 0;
637 }
638
639 return 0;
640 out:
641 chip->core_irq = 0;
642 return ret;
643 }
644
device_irq_exit(struct pm860x_chip * chip)645 static void device_irq_exit(struct pm860x_chip *chip)
646 {
647 if (chip->core_irq)
648 free_irq(chip->core_irq, chip);
649 }
650
pm8606_osc_enable(struct pm860x_chip * chip,unsigned short client)651 int pm8606_osc_enable(struct pm860x_chip *chip, unsigned short client)
652 {
653 int ret = -EIO;
654 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ?
655 chip->client : chip->companion;
656
657 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client);
658 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n",
659 __func__, chip->osc_vote,
660 chip->osc_status);
661
662 mutex_lock(&chip->osc_lock);
663 /* Update voting status */
664 chip->osc_vote |= client;
665 /* If reference group is off - turn on*/
666 if (chip->osc_status != PM8606_REF_GP_OSC_ON) {
667 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN;
668 /* Enable Reference group Vsys */
669 if (pm860x_set_bits(i2c, PM8606_VSYS,
670 PM8606_VSYS_EN, PM8606_VSYS_EN))
671 goto out;
672
673 /*Enable Internal Oscillator */
674 if (pm860x_set_bits(i2c, PM8606_MISC,
675 PM8606_MISC_OSC_EN, PM8606_MISC_OSC_EN))
676 goto out;
677 /* Update status (only if writes succeed) */
678 chip->osc_status = PM8606_REF_GP_OSC_ON;
679 }
680 mutex_unlock(&chip->osc_lock);
681
682 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n",
683 __func__, chip->osc_vote,
684 chip->osc_status, ret);
685 return 0;
686 out:
687 mutex_unlock(&chip->osc_lock);
688 return ret;
689 }
690 EXPORT_SYMBOL(pm8606_osc_enable);
691
pm8606_osc_disable(struct pm860x_chip * chip,unsigned short client)692 int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client)
693 {
694 int ret = -EIO;
695 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ?
696 chip->client : chip->companion;
697
698 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client);
699 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n",
700 __func__, chip->osc_vote,
701 chip->osc_status);
702
703 mutex_lock(&chip->osc_lock);
704 /* Update voting status */
705 chip->osc_vote &= ~(client);
706 /*
707 * If reference group is off and this is the last client to release
708 * - turn off
709 */
710 if ((chip->osc_status != PM8606_REF_GP_OSC_OFF) &&
711 (chip->osc_vote == REF_GP_NO_CLIENTS)) {
712 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN;
713 /* Disable Reference group Vsys */
714 if (pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0))
715 goto out;
716 /* Disable Internal Oscillator */
717 if (pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0))
718 goto out;
719 chip->osc_status = PM8606_REF_GP_OSC_OFF;
720 }
721 mutex_unlock(&chip->osc_lock);
722
723 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n",
724 __func__, chip->osc_vote,
725 chip->osc_status, ret);
726 return 0;
727 out:
728 mutex_unlock(&chip->osc_lock);
729 return ret;
730 }
731 EXPORT_SYMBOL(pm8606_osc_disable);
732
device_osc_init(struct i2c_client * i2c)733 static void device_osc_init(struct i2c_client *i2c)
734 {
735 struct pm860x_chip *chip = i2c_get_clientdata(i2c);
736
737 mutex_init(&chip->osc_lock);
738 /* init portofino reference group voting and status */
739 /* Disable Reference group Vsys */
740 pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0);
741 /* Disable Internal Oscillator */
742 pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0);
743
744 chip->osc_vote = REF_GP_NO_CLIENTS;
745 chip->osc_status = PM8606_REF_GP_OSC_OFF;
746 }
747
device_bk_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)748 static void device_bk_init(struct pm860x_chip *chip,
749 struct pm860x_platform_data *pdata)
750 {
751 int ret, i;
752
753 if (pdata && pdata->backlight) {
754 if (pdata->num_backlights > ARRAY_SIZE(bk_devs))
755 pdata->num_backlights = ARRAY_SIZE(bk_devs);
756 for (i = 0; i < pdata->num_backlights; i++) {
757 bk_devs[i].platform_data = &pdata->backlight[i];
758 bk_devs[i].pdata_size =
759 sizeof(struct pm860x_backlight_pdata);
760 }
761 }
762 ret = mfd_add_devices(chip->dev, 0, bk_devs,
763 ARRAY_SIZE(bk_devs), NULL, 0, NULL);
764 if (ret < 0)
765 dev_err(chip->dev, "Failed to add backlight subdev\n");
766 }
767
device_led_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)768 static void device_led_init(struct pm860x_chip *chip,
769 struct pm860x_platform_data *pdata)
770 {
771 int ret, i;
772
773 if (pdata && pdata->led) {
774 if (pdata->num_leds > ARRAY_SIZE(led_devs))
775 pdata->num_leds = ARRAY_SIZE(led_devs);
776 for (i = 0; i < pdata->num_leds; i++) {
777 led_devs[i].platform_data = &pdata->led[i];
778 led_devs[i].pdata_size =
779 sizeof(struct pm860x_led_pdata);
780 }
781 }
782 ret = mfd_add_devices(chip->dev, 0, led_devs,
783 ARRAY_SIZE(led_devs), NULL, 0, NULL);
784 if (ret < 0) {
785 dev_err(chip->dev, "Failed to add led subdev\n");
786 return;
787 }
788 }
789
device_regulator_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)790 static void device_regulator_init(struct pm860x_chip *chip,
791 struct pm860x_platform_data *pdata)
792 {
793 int ret;
794
795 if (pdata == NULL)
796 return;
797 if (pdata->buck1) {
798 reg_devs[0].platform_data = pdata->buck1;
799 reg_devs[0].pdata_size = sizeof(struct regulator_init_data);
800 }
801 if (pdata->buck2) {
802 reg_devs[1].platform_data = pdata->buck2;
803 reg_devs[1].pdata_size = sizeof(struct regulator_init_data);
804 }
805 if (pdata->buck3) {
806 reg_devs[2].platform_data = pdata->buck3;
807 reg_devs[2].pdata_size = sizeof(struct regulator_init_data);
808 }
809 if (pdata->ldo1) {
810 reg_devs[3].platform_data = pdata->ldo1;
811 reg_devs[3].pdata_size = sizeof(struct regulator_init_data);
812 }
813 if (pdata->ldo2) {
814 reg_devs[4].platform_data = pdata->ldo2;
815 reg_devs[4].pdata_size = sizeof(struct regulator_init_data);
816 }
817 if (pdata->ldo3) {
818 reg_devs[5].platform_data = pdata->ldo3;
819 reg_devs[5].pdata_size = sizeof(struct regulator_init_data);
820 }
821 if (pdata->ldo4) {
822 reg_devs[6].platform_data = pdata->ldo4;
823 reg_devs[6].pdata_size = sizeof(struct regulator_init_data);
824 }
825 if (pdata->ldo5) {
826 reg_devs[7].platform_data = pdata->ldo5;
827 reg_devs[7].pdata_size = sizeof(struct regulator_init_data);
828 }
829 if (pdata->ldo6) {
830 reg_devs[8].platform_data = pdata->ldo6;
831 reg_devs[8].pdata_size = sizeof(struct regulator_init_data);
832 }
833 if (pdata->ldo7) {
834 reg_devs[9].platform_data = pdata->ldo7;
835 reg_devs[9].pdata_size = sizeof(struct regulator_init_data);
836 }
837 if (pdata->ldo8) {
838 reg_devs[10].platform_data = pdata->ldo8;
839 reg_devs[10].pdata_size = sizeof(struct regulator_init_data);
840 }
841 if (pdata->ldo9) {
842 reg_devs[11].platform_data = pdata->ldo9;
843 reg_devs[11].pdata_size = sizeof(struct regulator_init_data);
844 }
845 if (pdata->ldo10) {
846 reg_devs[12].platform_data = pdata->ldo10;
847 reg_devs[12].pdata_size = sizeof(struct regulator_init_data);
848 }
849 if (pdata->ldo12) {
850 reg_devs[13].platform_data = pdata->ldo12;
851 reg_devs[13].pdata_size = sizeof(struct regulator_init_data);
852 }
853 if (pdata->ldo_vibrator) {
854 reg_devs[14].platform_data = pdata->ldo_vibrator;
855 reg_devs[14].pdata_size = sizeof(struct regulator_init_data);
856 }
857 if (pdata->ldo14) {
858 reg_devs[15].platform_data = pdata->ldo14;
859 reg_devs[15].pdata_size = sizeof(struct regulator_init_data);
860 }
861 ret = mfd_add_devices(chip->dev, 0, reg_devs,
862 ARRAY_SIZE(reg_devs), NULL, 0, NULL);
863 if (ret < 0) {
864 dev_err(chip->dev, "Failed to add regulator subdev\n");
865 return;
866 }
867 }
868
device_rtc_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)869 static void device_rtc_init(struct pm860x_chip *chip,
870 struct pm860x_platform_data *pdata)
871 {
872 int ret;
873
874 if (!pdata)
875 return;
876
877 rtc_devs[0].platform_data = pdata->rtc;
878 rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata);
879 rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources);
880 rtc_devs[0].resources = &rtc_resources[0];
881 ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0],
882 ARRAY_SIZE(rtc_devs), &rtc_resources[0],
883 chip->irq_base, NULL);
884 if (ret < 0)
885 dev_err(chip->dev, "Failed to add rtc subdev\n");
886 }
887
device_touch_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)888 static void device_touch_init(struct pm860x_chip *chip,
889 struct pm860x_platform_data *pdata)
890 {
891 int ret;
892
893 if (pdata == NULL)
894 return;
895
896 touch_devs[0].platform_data = pdata->touch;
897 touch_devs[0].pdata_size = sizeof(struct pm860x_touch_pdata);
898 touch_devs[0].num_resources = ARRAY_SIZE(touch_resources);
899 touch_devs[0].resources = &touch_resources[0];
900 ret = mfd_add_devices(chip->dev, 0, &touch_devs[0],
901 ARRAY_SIZE(touch_devs), &touch_resources[0],
902 chip->irq_base, NULL);
903 if (ret < 0)
904 dev_err(chip->dev, "Failed to add touch subdev\n");
905 }
906
device_power_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)907 static void device_power_init(struct pm860x_chip *chip,
908 struct pm860x_platform_data *pdata)
909 {
910 int ret;
911
912 if (pdata == NULL)
913 return;
914
915 power_devs[0].platform_data = pdata->power;
916 power_devs[0].pdata_size = sizeof(struct pm860x_power_pdata);
917 power_devs[0].num_resources = ARRAY_SIZE(battery_resources);
918 power_devs[0].resources = &battery_resources[0];
919 ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1,
920 &battery_resources[0], chip->irq_base, NULL);
921 if (ret < 0)
922 dev_err(chip->dev, "Failed to add battery subdev\n");
923
924 power_devs[1].platform_data = pdata->power;
925 power_devs[1].pdata_size = sizeof(struct pm860x_power_pdata);
926 power_devs[1].num_resources = ARRAY_SIZE(charger_resources);
927 power_devs[1].resources = &charger_resources[0];
928 ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1,
929 &charger_resources[0], chip->irq_base, NULL);
930 if (ret < 0)
931 dev_err(chip->dev, "Failed to add charger subdev\n");
932
933 power_devs[2].platform_data = &preg_init_data;
934 power_devs[2].pdata_size = sizeof(struct regulator_init_data);
935 ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1,
936 NULL, chip->irq_base, NULL);
937 if (ret < 0)
938 dev_err(chip->dev, "Failed to add preg subdev\n");
939
940 if (pdata->chg_desc) {
941 pdata->chg_desc->charger_regulators =
942 &chg_desc_regulator_data[0];
943 pdata->chg_desc->num_charger_regulators =
944 ARRAY_SIZE(chg_desc_regulator_data);
945 power_devs[3].platform_data = pdata->chg_desc;
946 power_devs[3].pdata_size = sizeof(*pdata->chg_desc);
947 ret = mfd_add_devices(chip->dev, 0, &power_devs[3], 1,
948 NULL, chip->irq_base, NULL);
949 if (ret < 0)
950 dev_err(chip->dev, "Failed to add chg-manager subdev\n");
951 }
952 }
953
device_onkey_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)954 static void device_onkey_init(struct pm860x_chip *chip,
955 struct pm860x_platform_data *pdata)
956 {
957 int ret;
958
959 onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources);
960 onkey_devs[0].resources = &onkey_resources[0];
961 ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0],
962 ARRAY_SIZE(onkey_devs), &onkey_resources[0],
963 chip->irq_base, NULL);
964 if (ret < 0)
965 dev_err(chip->dev, "Failed to add onkey subdev\n");
966 }
967
device_codec_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)968 static void device_codec_init(struct pm860x_chip *chip,
969 struct pm860x_platform_data *pdata)
970 {
971 int ret;
972
973 codec_devs[0].num_resources = ARRAY_SIZE(codec_resources);
974 codec_devs[0].resources = &codec_resources[0];
975 ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
976 ARRAY_SIZE(codec_devs), &codec_resources[0], 0,
977 NULL);
978 if (ret < 0)
979 dev_err(chip->dev, "Failed to add codec subdev\n");
980 }
981
device_8607_init(struct pm860x_chip * chip,struct i2c_client * i2c,struct pm860x_platform_data * pdata)982 static void device_8607_init(struct pm860x_chip *chip,
983 struct i2c_client *i2c,
984 struct pm860x_platform_data *pdata)
985 {
986 int data, ret;
987
988 ret = pm860x_reg_read(i2c, PM8607_CHIP_ID);
989 if (ret < 0) {
990 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret);
991 goto out;
992 }
993 switch (ret & PM8607_VERSION_MASK) {
994 case 0x40:
995 case 0x50:
996 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n",
997 ret);
998 break;
999 default:
1000 dev_err(chip->dev,
1001 "Failed to detect Marvell 88PM8607. Chip ID: %02x\n",
1002 ret);
1003 goto out;
1004 }
1005
1006 ret = pm860x_reg_read(i2c, PM8607_BUCK3);
1007 if (ret < 0) {
1008 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret);
1009 goto out;
1010 }
1011 if (ret & PM8607_BUCK3_DOUBLE)
1012 chip->buck3_double = 1;
1013
1014 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1);
1015 if (ret < 0) {
1016 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret);
1017 goto out;
1018 }
1019
1020 if (pdata && (pdata->i2c_port == PI2C_PORT))
1021 data = PM8607_B0_MISC1_PI2C;
1022 else
1023 data = 0;
1024 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data);
1025 if (ret < 0) {
1026 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret);
1027 goto out;
1028 }
1029
1030 ret = device_irq_init(chip, pdata);
1031 if (ret < 0)
1032 goto out;
1033
1034 device_regulator_init(chip, pdata);
1035 device_rtc_init(chip, pdata);
1036 device_onkey_init(chip, pdata);
1037 device_touch_init(chip, pdata);
1038 device_power_init(chip, pdata);
1039 device_codec_init(chip, pdata);
1040 out:
1041 return;
1042 }
1043
device_8606_init(struct pm860x_chip * chip,struct i2c_client * i2c,struct pm860x_platform_data * pdata)1044 static void device_8606_init(struct pm860x_chip *chip,
1045 struct i2c_client *i2c,
1046 struct pm860x_platform_data *pdata)
1047 {
1048 device_osc_init(i2c);
1049 device_bk_init(chip, pdata);
1050 device_led_init(chip, pdata);
1051 }
1052
pm860x_device_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)1053 static int pm860x_device_init(struct pm860x_chip *chip,
1054 struct pm860x_platform_data *pdata)
1055 {
1056 chip->core_irq = 0;
1057
1058 switch (chip->id) {
1059 case CHIP_PM8606:
1060 device_8606_init(chip, chip->client, pdata);
1061 break;
1062 case CHIP_PM8607:
1063 device_8607_init(chip, chip->client, pdata);
1064 break;
1065 }
1066
1067 if (chip->companion) {
1068 switch (chip->id) {
1069 case CHIP_PM8607:
1070 device_8606_init(chip, chip->companion, pdata);
1071 break;
1072 case CHIP_PM8606:
1073 device_8607_init(chip, chip->companion, pdata);
1074 break;
1075 }
1076 }
1077
1078 return 0;
1079 }
1080
pm860x_device_exit(struct pm860x_chip * chip)1081 static void pm860x_device_exit(struct pm860x_chip *chip)
1082 {
1083 device_irq_exit(chip);
1084 mfd_remove_devices(chip->dev);
1085 }
1086
verify_addr(struct i2c_client * i2c)1087 static int verify_addr(struct i2c_client *i2c)
1088 {
1089 unsigned short addr_8607[] = {0x30, 0x34};
1090 unsigned short addr_8606[] = {0x10, 0x11};
1091 int size, i;
1092
1093 if (i2c == NULL)
1094 return 0;
1095 size = ARRAY_SIZE(addr_8606);
1096 for (i = 0; i < size; i++) {
1097 if (i2c->addr == *(addr_8606 + i))
1098 return CHIP_PM8606;
1099 }
1100 size = ARRAY_SIZE(addr_8607);
1101 for (i = 0; i < size; i++) {
1102 if (i2c->addr == *(addr_8607 + i))
1103 return CHIP_PM8607;
1104 }
1105 return 0;
1106 }
1107
1108 static const struct regmap_config pm860x_regmap_config = {
1109 .reg_bits = 8,
1110 .val_bits = 8,
1111 };
1112
pm860x_dt_init(struct device_node * np,struct device * dev,struct pm860x_platform_data * pdata)1113 static int pm860x_dt_init(struct device_node *np,
1114 struct device *dev,
1115 struct pm860x_platform_data *pdata)
1116 {
1117 int ret;
1118
1119 pdata->irq_mode = of_property_read_bool(np, "marvell,88pm860x-irq-read-clr");
1120 ret = of_property_read_u32(np, "marvell,88pm860x-slave-addr",
1121 &pdata->companion_addr);
1122 if (ret) {
1123 dev_err(dev,
1124 "Not found \"marvell,88pm860x-slave-addr\" property\n");
1125 pdata->companion_addr = 0;
1126 }
1127 return 0;
1128 }
1129
pm860x_probe(struct i2c_client * client)1130 static int pm860x_probe(struct i2c_client *client)
1131 {
1132 struct pm860x_platform_data *pdata = dev_get_platdata(&client->dev);
1133 struct device_node *node = client->dev.of_node;
1134 struct pm860x_chip *chip;
1135 int ret;
1136
1137 if (node && !pdata) {
1138 /* parse DT to get platform data */
1139 pdata = devm_kzalloc(&client->dev,
1140 sizeof(struct pm860x_platform_data),
1141 GFP_KERNEL);
1142 if (!pdata)
1143 return -ENOMEM;
1144 ret = pm860x_dt_init(node, &client->dev, pdata);
1145 if (ret)
1146 return ret;
1147 } else if (!pdata) {
1148 pr_info("No platform data in %s!\n", __func__);
1149 return -EINVAL;
1150 }
1151
1152 chip = devm_kzalloc(&client->dev,
1153 sizeof(struct pm860x_chip), GFP_KERNEL);
1154 if (chip == NULL)
1155 return -ENOMEM;
1156
1157 chip->id = verify_addr(client);
1158 chip->regmap = devm_regmap_init_i2c(client, &pm860x_regmap_config);
1159 if (IS_ERR(chip->regmap)) {
1160 ret = PTR_ERR(chip->regmap);
1161 dev_err(&client->dev, "Failed to allocate register map: %d\n",
1162 ret);
1163 return ret;
1164 }
1165 chip->client = client;
1166 i2c_set_clientdata(client, chip);
1167 chip->dev = &client->dev;
1168
1169 /*
1170 * Both client and companion client shares same platform driver.
1171 * Driver distinguishes them by pdata->companion_addr.
1172 * pdata->companion_addr is only assigned if companion chip exists.
1173 * At the same time, the companion_addr shouldn't equal to client
1174 * address.
1175 */
1176 if (pdata->companion_addr && (pdata->companion_addr != client->addr)) {
1177 chip->companion_addr = pdata->companion_addr;
1178 chip->companion = i2c_new_dummy_device(chip->client->adapter,
1179 chip->companion_addr);
1180 if (IS_ERR(chip->companion)) {
1181 dev_err(&client->dev,
1182 "Failed to allocate I2C companion device\n");
1183 return PTR_ERR(chip->companion);
1184 }
1185 chip->regmap_companion = regmap_init_i2c(chip->companion,
1186 &pm860x_regmap_config);
1187 if (IS_ERR(chip->regmap_companion)) {
1188 ret = PTR_ERR(chip->regmap_companion);
1189 dev_err(&chip->companion->dev,
1190 "Failed to allocate register map: %d\n", ret);
1191 i2c_unregister_device(chip->companion);
1192 return ret;
1193 }
1194 i2c_set_clientdata(chip->companion, chip);
1195 }
1196
1197 pm860x_device_init(chip, pdata);
1198 return 0;
1199 }
1200
pm860x_remove(struct i2c_client * client)1201 static void pm860x_remove(struct i2c_client *client)
1202 {
1203 struct pm860x_chip *chip = i2c_get_clientdata(client);
1204
1205 pm860x_device_exit(chip);
1206 if (chip->companion) {
1207 regmap_exit(chip->regmap_companion);
1208 i2c_unregister_device(chip->companion);
1209 }
1210 }
1211
pm860x_suspend(struct device * dev)1212 static int pm860x_suspend(struct device *dev)
1213 {
1214 struct i2c_client *client = to_i2c_client(dev);
1215 struct pm860x_chip *chip = i2c_get_clientdata(client);
1216
1217 if (device_may_wakeup(dev) && chip->wakeup_flag)
1218 enable_irq_wake(chip->core_irq);
1219 return 0;
1220 }
1221
pm860x_resume(struct device * dev)1222 static int pm860x_resume(struct device *dev)
1223 {
1224 struct i2c_client *client = to_i2c_client(dev);
1225 struct pm860x_chip *chip = i2c_get_clientdata(client);
1226
1227 if (device_may_wakeup(dev) && chip->wakeup_flag)
1228 disable_irq_wake(chip->core_irq);
1229 return 0;
1230 }
1231
1232 static DEFINE_SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume);
1233
1234 static const struct i2c_device_id pm860x_id_table[] = {
1235 { "88PM860x" },
1236 {}
1237 };
1238 MODULE_DEVICE_TABLE(i2c, pm860x_id_table);
1239
1240 static const struct of_device_id pm860x_dt_ids[] = {
1241 { .compatible = "marvell,88pm860x", },
1242 {},
1243 };
1244 MODULE_DEVICE_TABLE(of, pm860x_dt_ids);
1245
1246 static struct i2c_driver pm860x_driver = {
1247 .driver = {
1248 .name = "88PM860x",
1249 .pm = pm_sleep_ptr(&pm860x_pm_ops),
1250 .of_match_table = pm860x_dt_ids,
1251 },
1252 .probe = pm860x_probe,
1253 .remove = pm860x_remove,
1254 .id_table = pm860x_id_table,
1255 };
1256
pm860x_i2c_init(void)1257 static int __init pm860x_i2c_init(void)
1258 {
1259 int ret;
1260
1261 ret = i2c_add_driver(&pm860x_driver);
1262 if (ret != 0)
1263 pr_err("Failed to register 88PM860x I2C driver: %d\n", ret);
1264 return ret;
1265 }
1266 subsys_initcall(pm860x_i2c_init);
1267
pm860x_i2c_exit(void)1268 static void __exit pm860x_i2c_exit(void)
1269 {
1270 i2c_del_driver(&pm860x_driver);
1271 }
1272 module_exit(pm860x_i2c_exit);
1273
1274 MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x");
1275 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
1276