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Revert "unicode: Don't special case ignorable code points"
[linux.git] / drivers / mfd / 88pm860x-core.c
blob8e68b64bd7f8ae91594cef34a2f2408c655940c4
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
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
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
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
534 static void pm860x_irq_enable(struct irq_data *data)
535 {
536 pm860x_irqs[data->hwirq].enable = pm860x_irqs[data->hwirq].offs;
537 }
538
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
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
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 struct device_node *node = i2c->dev.of_node;
577
578 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR
579 | PM8607_B0_MISC1_INT_MASK;
580 data = 0;
581 chip->irq_mode = 0;
582 if (pdata && pdata->irq_mode) {
583 /*
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.
587 */
588 data |= PM8607_B0_MISC1_INT_CLEAR;
589 chip->irq_mode = 1;
590 }
591 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data);
592 if (ret < 0)
593 goto out;
594
595 /* mask all IRQs */
596 memset(status_buf, 0, INT_STATUS_NUM);
597 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1,
598 INT_STATUS_NUM, status_buf);
599 if (ret < 0)
600 goto out;
601
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);
607 } else {
608 /* clear interrupt status by read */
609 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1,
610 INT_STATUS_NUM, status_buf);
611 }
612 if (ret < 0)
613 goto out;
614
615 mutex_init(&chip->irq_lock);
616
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",
623 chip->irq_base);
624 ret = -EBUSY;
625 goto out;
626 }
627 irq_domain_add_legacy(node, nr_irqs, chip->irq_base, 0,
628 &pm860x_irq_domain_ops, chip);
629 chip->core_irq = i2c->irq;
630 if (!chip->core_irq)
631 goto out;
632
633 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq,
634 flags | IRQF_ONESHOT, "88pm860x", chip);
635 if (ret) {
636 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret);
637 chip->core_irq = 0;
638 }
639
640 return 0;
641 out:
642 chip->core_irq = 0;
643 return ret;
644 }
645
646 static void device_irq_exit(struct pm860x_chip *chip)
647 {
648 if (chip->core_irq)
649 free_irq(chip->core_irq, chip);
650 }
651
652 int pm8606_osc_enable(struct pm860x_chip *chip, unsigned short client)
653 {
654 int ret = -EIO;
655 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ?
656 chip->client : chip->companion;
657
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,
661 chip->osc_status);
662
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))
672 goto out;
673
674 /*Enable Internal Oscillator */
675 if (pm860x_set_bits(i2c, PM8606_MISC,
676 PM8606_MISC_OSC_EN, PM8606_MISC_OSC_EN))
677 goto out;
678 /* Update status (only if writes succeed) */
679 chip->osc_status = PM8606_REF_GP_OSC_ON;
680 }
681 mutex_unlock(&chip->osc_lock);
682
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);
686 return 0;
687 out:
688 mutex_unlock(&chip->osc_lock);
689 return ret;
690 }
691 EXPORT_SYMBOL(pm8606_osc_enable);
692
693 int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client)
694 {
695 int ret = -EIO;
696 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ?
697 chip->client : chip->companion;
698
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,
702 chip->osc_status);
703
704 mutex_lock(&chip->osc_lock);
705 /* Update voting status */
706 chip->osc_vote &= ~(client);
707 /*
708 * If reference group is off and this is the last client to release
709 * - turn off
710 */
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))
716 goto out;
717 /* Disable Internal Oscillator */
718 if (pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0))
719 goto out;
720 chip->osc_status = PM8606_REF_GP_OSC_OFF;
721 }
722 mutex_unlock(&chip->osc_lock);
723
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);
727 return 0;
728 out:
729 mutex_unlock(&chip->osc_lock);
730 return ret;
731 }
732 EXPORT_SYMBOL(pm8606_osc_disable);
733
734 static void device_osc_init(struct i2c_client *i2c)
735 {
736 struct pm860x_chip *chip = i2c_get_clientdata(i2c);
737
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);
744
745 chip->osc_vote = REF_GP_NO_CLIENTS;
746 chip->osc_status = PM8606_REF_GP_OSC_OFF;
747 }
748
749 static void device_bk_init(struct pm860x_chip *chip,
750 struct pm860x_platform_data *pdata)
751 {
752 int ret, i;
753
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);
761 }
762 }
763 ret = mfd_add_devices(chip->dev, 0, bk_devs,
764 ARRAY_SIZE(bk_devs), NULL, 0, NULL);
765 if (ret < 0)
766 dev_err(chip->dev, "Failed to add backlight subdev\n");
767 }
768
769 static void device_led_init(struct pm860x_chip *chip,
770 struct pm860x_platform_data *pdata)
771 {
772 int ret, i;
773
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);
781 }
782 }
783 ret = mfd_add_devices(chip->dev, 0, led_devs,
784 ARRAY_SIZE(led_devs), NULL, 0, NULL);
785 if (ret < 0) {
786 dev_err(chip->dev, "Failed to add led subdev\n");
787 return;
788 }
789 }
790
791 static void device_regulator_init(struct pm860x_chip *chip,
792 struct pm860x_platform_data *pdata)
793 {
794 int ret;
795
796 if (pdata == NULL)
797 return;
798 if (pdata->buck1) {
799 reg_devs[0].platform_data = pdata->buck1;
800 reg_devs[0].pdata_size = sizeof(struct regulator_init_data);
801 }
802 if (pdata->buck2) {
803 reg_devs[1].platform_data = pdata->buck2;
804 reg_devs[1].pdata_size = sizeof(struct regulator_init_data);
805 }
806 if (pdata->buck3) {
807 reg_devs[2].platform_data = pdata->buck3;
808 reg_devs[2].pdata_size = sizeof(struct regulator_init_data);
809 }
810 if (pdata->ldo1) {
811 reg_devs[3].platform_data = pdata->ldo1;
812 reg_devs[3].pdata_size = sizeof(struct regulator_init_data);
813 }
814 if (pdata->ldo2) {
815 reg_devs[4].platform_data = pdata->ldo2;
816 reg_devs[4].pdata_size = sizeof(struct regulator_init_data);
817 }
818 if (pdata->ldo3) {
819 reg_devs[5].platform_data = pdata->ldo3;
820 reg_devs[5].pdata_size = sizeof(struct regulator_init_data);
821 }
822 if (pdata->ldo4) {
823 reg_devs[6].platform_data = pdata->ldo4;
824 reg_devs[6].pdata_size = sizeof(struct regulator_init_data);
825 }
826 if (pdata->ldo5) {
827 reg_devs[7].platform_data = pdata->ldo5;
828 reg_devs[7].pdata_size = sizeof(struct regulator_init_data);
829 }
830 if (pdata->ldo6) {
831 reg_devs[8].platform_data = pdata->ldo6;
832 reg_devs[8].pdata_size = sizeof(struct regulator_init_data);
833 }
834 if (pdata->ldo7) {
835 reg_devs[9].platform_data = pdata->ldo7;
836 reg_devs[9].pdata_size = sizeof(struct regulator_init_data);
837 }
838 if (pdata->ldo8) {
839 reg_devs[10].platform_data = pdata->ldo8;
840 reg_devs[10].pdata_size = sizeof(struct regulator_init_data);
841 }
842 if (pdata->ldo9) {
843 reg_devs[11].platform_data = pdata->ldo9;
844 reg_devs[11].pdata_size = sizeof(struct regulator_init_data);
845 }
846 if (pdata->ldo10) {
847 reg_devs[12].platform_data = pdata->ldo10;
848 reg_devs[12].pdata_size = sizeof(struct regulator_init_data);
849 }
850 if (pdata->ldo12) {
851 reg_devs[13].platform_data = pdata->ldo12;
852 reg_devs[13].pdata_size = sizeof(struct regulator_init_data);
853 }
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);
857 }
858 if (pdata->ldo14) {
859 reg_devs[15].platform_data = pdata->ldo14;
860 reg_devs[15].pdata_size = sizeof(struct regulator_init_data);
861 }
862 ret = mfd_add_devices(chip->dev, 0, reg_devs,
863 ARRAY_SIZE(reg_devs), NULL, 0, NULL);
864 if (ret < 0) {
865 dev_err(chip->dev, "Failed to add regulator subdev\n");
866 return;
867 }
868 }
869
870 static void device_rtc_init(struct pm860x_chip *chip,
871 struct pm860x_platform_data *pdata)
872 {
873 int ret;
874
875 if (!pdata)
876 return;
877
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);
885 if (ret < 0)
886 dev_err(chip->dev, "Failed to add rtc subdev\n");
887 }
888
889 static void device_touch_init(struct pm860x_chip *chip,
890 struct pm860x_platform_data *pdata)
891 {
892 int ret;
893
894 if (pdata == NULL)
895 return;
896
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);
904 if (ret < 0)
905 dev_err(chip->dev, "Failed to add touch subdev\n");
906 }
907
908 static void device_power_init(struct pm860x_chip *chip,
909 struct pm860x_platform_data *pdata)
910 {
911 int ret;
912
913 if (pdata == NULL)
914 return;
915
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);
922 if (ret < 0)
923 dev_err(chip->dev, "Failed to add battery subdev\n");
924
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);
931 if (ret < 0)
932 dev_err(chip->dev, "Failed to add charger subdev\n");
933
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);
938 if (ret < 0)
939 dev_err(chip->dev, "Failed to add preg subdev\n");
940
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);
950 if (ret < 0)
951 dev_err(chip->dev, "Failed to add chg-manager subdev\n");
952 }
953 }
954
955 static void device_onkey_init(struct pm860x_chip *chip,
956 struct pm860x_platform_data *pdata)
957 {
958 int ret;
959
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);
965 if (ret < 0)
966 dev_err(chip->dev, "Failed to add onkey subdev\n");
967 }
968
969 static void device_codec_init(struct pm860x_chip *chip,
970 struct pm860x_platform_data *pdata)
971 {
972 int ret;
973
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,
978 NULL);
979 if (ret < 0)
980 dev_err(chip->dev, "Failed to add codec subdev\n");
981 }
982
983 static void device_8607_init(struct pm860x_chip *chip,
984 struct i2c_client *i2c,
985 struct pm860x_platform_data *pdata)
986 {
987 int data, ret;
988
989 ret = pm860x_reg_read(i2c, PM8607_CHIP_ID);
990 if (ret < 0) {
991 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret);
992 goto out;
993 }
994 switch (ret & PM8607_VERSION_MASK) {
995 case 0x40:
996 case 0x50:
997 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n",
998 ret);
999 break;
1000 default:
1001 dev_err(chip->dev,
1002 "Failed to detect Marvell 88PM8607. Chip ID: %02x\n",
1003 ret);
1004 goto out;
1005 }
1006
1007 ret = pm860x_reg_read(i2c, PM8607_BUCK3);
1008 if (ret < 0) {
1009 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret);
1010 goto out;
1011 }
1012 if (ret & PM8607_BUCK3_DOUBLE)
1013 chip->buck3_double = 1;
1014
1015 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1);
1016 if (ret < 0) {
1017 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret);
1018 goto out;
1019 }
1020
1021 if (pdata && (pdata->i2c_port == PI2C_PORT))
1022 data = PM8607_B0_MISC1_PI2C;
1023 else
1024 data = 0;
1025 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data);
1026 if (ret < 0) {
1027 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret);
1028 goto out;
1029 }
1030
1031 ret = device_irq_init(chip, pdata);
1032 if (ret < 0)
1033 goto out;
1034
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);
1041 out:
1042 return;
1043 }
1044
1045 static void device_8606_init(struct pm860x_chip *chip,
1046 struct i2c_client *i2c,
1047 struct pm860x_platform_data *pdata)
1048 {
1049 device_osc_init(i2c);
1050 device_bk_init(chip, pdata);
1051 device_led_init(chip, pdata);
1052 }
1053
1054 static int pm860x_device_init(struct pm860x_chip *chip,
1055 struct pm860x_platform_data *pdata)
1056 {
1057 chip->core_irq = 0;
1058
1059 switch (chip->id) {
1060 case CHIP_PM8606:
1061 device_8606_init(chip, chip->client, pdata);
1062 break;
1063 case CHIP_PM8607:
1064 device_8607_init(chip, chip->client, pdata);
1065 break;
1066 }
1067
1068 if (chip->companion) {
1069 switch (chip->id) {
1070 case CHIP_PM8607:
1071 device_8606_init(chip, chip->companion, pdata);
1072 break;
1073 case CHIP_PM8606:
1074 device_8607_init(chip, chip->companion, pdata);
1075 break;
1076 }
1077 }
1078
1079 return 0;
1080 }
1081
1082 static void pm860x_device_exit(struct pm860x_chip *chip)
1083 {
1084 device_irq_exit(chip);
1085 mfd_remove_devices(chip->dev);
1086 }
1087
1088 static int verify_addr(struct i2c_client *i2c)
1089 {
1090 unsigned short addr_8607[] = {0x30, 0x34};
1091 unsigned short addr_8606[] = {0x10, 0x11};
1092 int size, i;
1093
1094 if (i2c == NULL)
1095 return 0;
1096 size = ARRAY_SIZE(addr_8606);
1097 for (i = 0; i < size; i++) {
1098 if (i2c->addr == *(addr_8606 + i))
1099 return CHIP_PM8606;
1100 }
1101 size = ARRAY_SIZE(addr_8607);
1102 for (i = 0; i < size; i++) {
1103 if (i2c->addr == *(addr_8607 + i))
1104 return CHIP_PM8607;
1105 }
1106 return 0;
1107 }
1108
1109 static const struct regmap_config pm860x_regmap_config = {
1110 .reg_bits = 8,
1111 .val_bits = 8,
1112 };
1113
1114 static int pm860x_dt_init(struct device_node *np,
1115 struct device *dev,
1116 struct pm860x_platform_data *pdata)
1117 {
1118 int ret;
1119
1120 pdata->irq_mode = of_property_read_bool(np, "marvell,88pm860x-irq-read-clr");
1121 ret = of_property_read_u32(np, "marvell,88pm860x-slave-addr",
1122 &pdata->companion_addr);
1123 if (ret) {
1124 dev_err(dev,
1125 "Not found \"marvell,88pm860x-slave-addr\" property\n");
1126 pdata->companion_addr = 0;
1127 }
1128 return 0;
1129 }
1130
1131 static int pm860x_probe(struct i2c_client *client)
1132 {
1133 struct pm860x_platform_data *pdata = dev_get_platdata(&client->dev);
1134 struct device_node *node = client->dev.of_node;
1135 struct pm860x_chip *chip;
1136 int ret;
1137
1138 if (node && !pdata) {
1139 /* parse DT to get platform data */
1140 pdata = devm_kzalloc(&client->dev,
1141 sizeof(struct pm860x_platform_data),
1142 GFP_KERNEL);
1143 if (!pdata)
1144 return -ENOMEM;
1145 ret = pm860x_dt_init(node, &client->dev, pdata);
1146 if (ret)
1147 return ret;
1148 } else if (!pdata) {
1149 pr_info("No platform data in %s!\n", __func__);
1150 return -EINVAL;
1151 }
1152
1153 chip = devm_kzalloc(&client->dev,
1154 sizeof(struct pm860x_chip), GFP_KERNEL);
1155 if (chip == NULL)
1156 return -ENOMEM;
1157
1158 chip->id = verify_addr(client);
1159 chip->regmap = devm_regmap_init_i2c(client, &pm860x_regmap_config);
1160 if (IS_ERR(chip->regmap)) {
1161 ret = PTR_ERR(chip->regmap);
1162 dev_err(&client->dev, "Failed to allocate register map: %d\n",
1163 ret);
1164 return ret;
1165 }
1166 chip->client = client;
1167 i2c_set_clientdata(client, chip);
1168 chip->dev = &client->dev;
1169
1170 /*
1171 * Both client and companion client shares same platform driver.
1172 * Driver distinguishes them by pdata->companion_addr.
1173 * pdata->companion_addr is only assigned if companion chip exists.
1174 * At the same time, the companion_addr shouldn't equal to client
1175 * address.
1176 */
1177 if (pdata->companion_addr && (pdata->companion_addr != client->addr)) {
1178 chip->companion_addr = pdata->companion_addr;
1179 chip->companion = i2c_new_dummy_device(chip->client->adapter,
1180 chip->companion_addr);
1181 if (IS_ERR(chip->companion)) {
1182 dev_err(&client->dev,
1183 "Failed to allocate I2C companion device\n");
1184 return PTR_ERR(chip->companion);
1185 }
1186 chip->regmap_companion = regmap_init_i2c(chip->companion,
1187 &pm860x_regmap_config);
1188 if (IS_ERR(chip->regmap_companion)) {
1189 ret = PTR_ERR(chip->regmap_companion);
1190 dev_err(&chip->companion->dev,
1191 "Failed to allocate register map: %d\n", ret);
1192 i2c_unregister_device(chip->companion);
1193 return ret;
1194 }
1195 i2c_set_clientdata(chip->companion, chip);
1196 }
1197
1198 pm860x_device_init(chip, pdata);
1199 return 0;
1200 }
1201
1202 static void pm860x_remove(struct i2c_client *client)
1203 {
1204 struct pm860x_chip *chip = i2c_get_clientdata(client);
1205
1206 pm860x_device_exit(chip);
1207 if (chip->companion) {
1208 regmap_exit(chip->regmap_companion);
1209 i2c_unregister_device(chip->companion);
1210 }
1211 }
1212
1213 static int pm860x_suspend(struct device *dev)
1214 {
1215 struct i2c_client *client = to_i2c_client(dev);
1216 struct pm860x_chip *chip = i2c_get_clientdata(client);
1217
1218 if (device_may_wakeup(dev) && chip->wakeup_flag)
1219 enable_irq_wake(chip->core_irq);
1220 return 0;
1221 }
1222
1223 static int pm860x_resume(struct device *dev)
1224 {
1225 struct i2c_client *client = to_i2c_client(dev);
1226 struct pm860x_chip *chip = i2c_get_clientdata(client);
1227
1228 if (device_may_wakeup(dev) && chip->wakeup_flag)
1229 disable_irq_wake(chip->core_irq);
1230 return 0;
1231 }
1232
1233 static DEFINE_SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume);
1234
1235 static const struct i2c_device_id pm860x_id_table[] = {
1236 { "88PM860x" },
1237 {}
1238 };
1239 MODULE_DEVICE_TABLE(i2c, pm860x_id_table);
1240
1241 static const struct of_device_id pm860x_dt_ids[] = {
1242 { .compatible = "marvell,88pm860x", },
1243 {},
1244 };
1245 MODULE_DEVICE_TABLE(of, pm860x_dt_ids);
1246
1247 static struct i2c_driver pm860x_driver = {
1248 .driver = {
1249 .name = "88PM860x",
1250 .pm = pm_sleep_ptr(&pm860x_pm_ops),
1251 .of_match_table = pm860x_dt_ids,
1252 },
1253 .probe = pm860x_probe,
1254 .remove = pm860x_remove,
1255 .id_table = pm860x_id_table,
1256 };
1257
1258 static int __init pm860x_i2c_init(void)
1259 {
1260 int ret;
1261
1262 ret = i2c_add_driver(&pm860x_driver);
1263 if (ret != 0)
1264 pr_err("Failed to register 88PM860x I2C driver: %d\n", ret);
1265 return ret;
1266 }
1267 subsys_initcall(pm860x_i2c_init);
1268
1269 static void __exit pm860x_i2c_exit(void)
1270 {
1271 i2c_del_driver(&pm860x_driver);
1272 }
1273 module_exit(pm860x_i2c_exit);
1274
1275 MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x");
1276 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
Linux Kernel