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Linux 4.1.16
[linux/fpc-iii.git] / drivers / mfd / 88pm860x-core.c
blobd2a85cde68da50c2efe49a52d87cdc739b5aeef0
1 /*
2 * Base driver for Marvell 88PM8607
3 *
4 * Copyright (C) 2009 Marvell International Ltd.
5 *
6 * Author: Haojian Zhuang <haojian.zhuang@marvell.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13 #include <linux/kernel.h>
14 #include <linux/module.h>
15 #include <linux/err.h>
16 #include <linux/i2c.h>
17 #include <linux/irq.h>
18 #include <linux/interrupt.h>
19 #include <linux/irqdomain.h>
20 #include <linux/of.h>
21 #include <linux/of_platform.h>
22 #include <linux/platform_device.h>
23 #include <linux/regmap.h>
24 #include <linux/slab.h>
25 #include <linux/mfd/core.h>
26 #include <linux/mfd/88pm860x.h>
27 #include <linux/regulator/machine.h>
28 #include <linux/power/charger-manager.h>
29
30 #define INT_STATUS_NUM 3
31
32 static struct resource bk0_resources[] = {
33 {2, 2, "duty cycle", IORESOURCE_REG, },
34 {3, 3, "always on", IORESOURCE_REG, },
35 {3, 3, "current", IORESOURCE_REG, },
36 };
37 static struct resource bk1_resources[] = {
38 {4, 4, "duty cycle", IORESOURCE_REG, },
39 {5, 5, "always on", IORESOURCE_REG, },
40 {5, 5, "current", IORESOURCE_REG, },
41 };
42 static struct resource bk2_resources[] = {
43 {6, 6, "duty cycle", IORESOURCE_REG, },
44 {7, 7, "always on", IORESOURCE_REG, },
45 {5, 5, "current", IORESOURCE_REG, },
46 };
47
48 static struct resource led0_resources[] = {
49 /* RGB1 Red LED */
50 {0xd, 0xd, "control", IORESOURCE_REG, },
51 {0xc, 0xc, "blink", IORESOURCE_REG, },
52 };
53 static struct resource led1_resources[] = {
54 /* RGB1 Green LED */
55 {0xe, 0xe, "control", IORESOURCE_REG, },
56 {0xc, 0xc, "blink", IORESOURCE_REG, },
57 };
58 static struct resource led2_resources[] = {
59 /* RGB1 Blue LED */
60 {0xf, 0xf, "control", IORESOURCE_REG, },
61 {0xc, 0xc, "blink", IORESOURCE_REG, },
62 };
63 static struct resource led3_resources[] = {
64 /* RGB2 Red LED */
65 {0x9, 0x9, "control", IORESOURCE_REG, },
66 {0x8, 0x8, "blink", IORESOURCE_REG, },
67 };
68 static struct resource led4_resources[] = {
69 /* RGB2 Green LED */
70 {0xa, 0xa, "control", IORESOURCE_REG, },
71 {0x8, 0x8, "blink", IORESOURCE_REG, },
72 };
73 static struct resource led5_resources[] = {
74 /* RGB2 Blue LED */
75 {0xb, 0xb, "control", IORESOURCE_REG, },
76 {0x8, 0x8, "blink", IORESOURCE_REG, },
77 };
78
79 static struct resource buck1_resources[] = {
80 {0x24, 0x24, "buck set", IORESOURCE_REG, },
81 };
82 static struct resource buck2_resources[] = {
83 {0x25, 0x25, "buck set", IORESOURCE_REG, },
84 };
85 static struct resource buck3_resources[] = {
86 {0x26, 0x26, "buck set", IORESOURCE_REG, },
87 };
88 static struct resource ldo1_resources[] = {
89 {0x10, 0x10, "ldo set", IORESOURCE_REG, },
90 };
91 static struct resource ldo2_resources[] = {
92 {0x11, 0x11, "ldo set", IORESOURCE_REG, },
93 };
94 static struct resource ldo3_resources[] = {
95 {0x12, 0x12, "ldo set", IORESOURCE_REG, },
96 };
97 static struct resource ldo4_resources[] = {
98 {0x13, 0x13, "ldo set", IORESOURCE_REG, },
99 };
100 static struct resource ldo5_resources[] = {
101 {0x14, 0x14, "ldo set", IORESOURCE_REG, },
102 };
103 static struct resource ldo6_resources[] = {
104 {0x15, 0x15, "ldo set", IORESOURCE_REG, },
105 };
106 static struct resource ldo7_resources[] = {
107 {0x16, 0x16, "ldo set", IORESOURCE_REG, },
108 };
109 static struct resource ldo8_resources[] = {
110 {0x17, 0x17, "ldo set", IORESOURCE_REG, },
111 };
112 static struct resource ldo9_resources[] = {
113 {0x18, 0x18, "ldo set", IORESOURCE_REG, },
114 };
115 static struct resource ldo10_resources[] = {
116 {0x19, 0x19, "ldo set", IORESOURCE_REG, },
117 };
118 static struct resource ldo12_resources[] = {
119 {0x1a, 0x1a, "ldo set", IORESOURCE_REG, },
120 };
121 static struct resource ldo_vibrator_resources[] = {
122 {0x28, 0x28, "ldo set", IORESOURCE_REG, },
123 };
124 static struct resource ldo14_resources[] = {
125 {0x1b, 0x1b, "ldo set", IORESOURCE_REG, },
126 };
127
128 static struct resource touch_resources[] = {
129 {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,},
130 };
131
132 static struct resource onkey_resources[] = {
133 {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,},
134 };
135
136 static struct resource codec_resources[] = {
137 /* Headset microphone insertion or removal */
138 {PM8607_IRQ_MICIN, PM8607_IRQ_MICIN, "micin", IORESOURCE_IRQ,},
139 /* Hook-switch press or release */
140 {PM8607_IRQ_HOOK, PM8607_IRQ_HOOK, "hook", IORESOURCE_IRQ,},
141 /* Headset insertion or removal */
142 {PM8607_IRQ_HEADSET, PM8607_IRQ_HEADSET, "headset", IORESOURCE_IRQ,},
143 /* Audio short */
144 {PM8607_IRQ_AUDIO_SHORT, PM8607_IRQ_AUDIO_SHORT, "audio-short",
145 IORESOURCE_IRQ,},
146 };
147
148 static struct resource battery_resources[] = {
149 {PM8607_IRQ_CC, PM8607_IRQ_CC, "columb counter", IORESOURCE_IRQ,},
150 {PM8607_IRQ_BAT, PM8607_IRQ_BAT, "battery", IORESOURCE_IRQ,},
151 };
152
153 static struct resource charger_resources[] = {
154 {PM8607_IRQ_CHG, PM8607_IRQ_CHG, "charger detect", IORESOURCE_IRQ,},
155 {PM8607_IRQ_CHG_DONE, PM8607_IRQ_CHG_DONE, "charging done",
156 IORESOURCE_IRQ,},
157 {PM8607_IRQ_CHG_FAIL, PM8607_IRQ_CHG_FAIL, "charging timeout",
158 IORESOURCE_IRQ,},
159 {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging fault",
160 IORESOURCE_IRQ,},
161 {PM8607_IRQ_GPADC1, PM8607_IRQ_GPADC1, "battery temperature",
162 IORESOURCE_IRQ,},
163 {PM8607_IRQ_VBAT, PM8607_IRQ_VBAT, "battery voltage", IORESOURCE_IRQ,},
164 {PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage", IORESOURCE_IRQ,},
165 };
166
167 static struct resource rtc_resources[] = {
168 {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,},
169 };
170
171 static struct mfd_cell bk_devs[] = {
172 {
173 .name = "88pm860x-backlight",
174 .id = 0,
175 .num_resources = ARRAY_SIZE(bk0_resources),
176 .resources = bk0_resources,
177 }, {
178 .name = "88pm860x-backlight",
179 .id = 1,
180 .num_resources = ARRAY_SIZE(bk1_resources),
181 .resources = bk1_resources,
182 }, {
183 .name = "88pm860x-backlight",
184 .id = 2,
185 .num_resources = ARRAY_SIZE(bk2_resources),
186 .resources = bk2_resources,
187 },
188 };
189
190 static struct mfd_cell led_devs[] = {
191 {
192 .name = "88pm860x-led",
193 .id = 0,
194 .num_resources = ARRAY_SIZE(led0_resources),
195 .resources = led0_resources,
196 }, {
197 .name = "88pm860x-led",
198 .id = 1,
199 .num_resources = ARRAY_SIZE(led1_resources),
200 .resources = led1_resources,
201 }, {
202 .name = "88pm860x-led",
203 .id = 2,
204 .num_resources = ARRAY_SIZE(led2_resources),
205 .resources = led2_resources,
206 }, {
207 .name = "88pm860x-led",
208 .id = 3,
209 .num_resources = ARRAY_SIZE(led3_resources),
210 .resources = led3_resources,
211 }, {
212 .name = "88pm860x-led",
213 .id = 4,
214 .num_resources = ARRAY_SIZE(led4_resources),
215 .resources = led4_resources,
216 }, {
217 .name = "88pm860x-led",
218 .id = 5,
219 .num_resources = ARRAY_SIZE(led5_resources),
220 .resources = led5_resources,
221 },
222 };
223
224 static struct mfd_cell reg_devs[] = {
225 {
226 .name = "88pm860x-regulator",
227 .id = 0,
228 .num_resources = ARRAY_SIZE(buck1_resources),
229 .resources = buck1_resources,
230 }, {
231 .name = "88pm860x-regulator",
232 .id = 1,
233 .num_resources = ARRAY_SIZE(buck2_resources),
234 .resources = buck2_resources,
235 }, {
236 .name = "88pm860x-regulator",
237 .id = 2,
238 .num_resources = ARRAY_SIZE(buck3_resources),
239 .resources = buck3_resources,
240 }, {
241 .name = "88pm860x-regulator",
242 .id = 3,
243 .num_resources = ARRAY_SIZE(ldo1_resources),
244 .resources = ldo1_resources,
245 }, {
246 .name = "88pm860x-regulator",
247 .id = 4,
248 .num_resources = ARRAY_SIZE(ldo2_resources),
249 .resources = ldo2_resources,
250 }, {
251 .name = "88pm860x-regulator",
252 .id = 5,
253 .num_resources = ARRAY_SIZE(ldo3_resources),
254 .resources = ldo3_resources,
255 }, {
256 .name = "88pm860x-regulator",
257 .id = 6,
258 .num_resources = ARRAY_SIZE(ldo4_resources),
259 .resources = ldo4_resources,
260 }, {
261 .name = "88pm860x-regulator",
262 .id = 7,
263 .num_resources = ARRAY_SIZE(ldo5_resources),
264 .resources = ldo5_resources,
265 }, {
266 .name = "88pm860x-regulator",
267 .id = 8,
268 .num_resources = ARRAY_SIZE(ldo6_resources),
269 .resources = ldo6_resources,
270 }, {
271 .name = "88pm860x-regulator",
272 .id = 9,
273 .num_resources = ARRAY_SIZE(ldo7_resources),
274 .resources = ldo7_resources,
275 }, {
276 .name = "88pm860x-regulator",
277 .id = 10,
278 .num_resources = ARRAY_SIZE(ldo8_resources),
279 .resources = ldo8_resources,
280 }, {
281 .name = "88pm860x-regulator",
282 .id = 11,
283 .num_resources = ARRAY_SIZE(ldo9_resources),
284 .resources = ldo9_resources,
285 }, {
286 .name = "88pm860x-regulator",
287 .id = 12,
288 .num_resources = ARRAY_SIZE(ldo10_resources),
289 .resources = ldo10_resources,
290 }, {
291 .name = "88pm860x-regulator",
292 .id = 13,
293 .num_resources = ARRAY_SIZE(ldo12_resources),
294 .resources = ldo12_resources,
295 }, {
296 .name = "88pm860x-regulator",
297 .id = 14,
298 .num_resources = ARRAY_SIZE(ldo_vibrator_resources),
299 .resources = ldo_vibrator_resources,
300 }, {
301 .name = "88pm860x-regulator",
302 .id = 15,
303 .num_resources = ARRAY_SIZE(ldo14_resources),
304 .resources = ldo14_resources,
305 },
306 };
307
308 static struct mfd_cell touch_devs[] = {
309 {"88pm860x-touch", -1,},
310 };
311
312 static struct mfd_cell onkey_devs[] = {
313 {"88pm860x-onkey", -1,},
314 };
315
316 static struct mfd_cell codec_devs[] = {
317 {"88pm860x-codec", -1,},
318 };
319
320 static struct regulator_consumer_supply preg_supply[] = {
321 REGULATOR_SUPPLY("preg", "charger-manager"),
322 };
323
324 static struct regulator_init_data preg_init_data = {
325 .num_consumer_supplies = ARRAY_SIZE(preg_supply),
326 .consumer_supplies = &preg_supply[0],
327 };
328
329 static struct charger_regulator chg_desc_regulator_data[] = {
330 { .regulator_name = "preg", },
331 };
332
333 static struct mfd_cell power_devs[] = {
334 {"88pm860x-battery", -1,},
335 {"88pm860x-charger", -1,},
336 {"88pm860x-preg", -1,},
337 {"charger-manager", -1,},
338 };
339
340 static struct mfd_cell rtc_devs[] = {
341 {"88pm860x-rtc", -1,},
342 };
343
344
345 struct pm860x_irq_data {
346 int reg;
347 int mask_reg;
348 int enable; /* enable or not */
349 int offs; /* bit offset in mask register */
350 };
351
352 static struct pm860x_irq_data pm860x_irqs[] = {
353 [PM8607_IRQ_ONKEY] = {
354 .reg = PM8607_INT_STATUS1,
355 .mask_reg = PM8607_INT_MASK_1,
356 .offs = 1 << 0,
357 },
358 [PM8607_IRQ_EXTON] = {
359 .reg = PM8607_INT_STATUS1,
360 .mask_reg = PM8607_INT_MASK_1,
361 .offs = 1 << 1,
362 },
363 [PM8607_IRQ_CHG] = {
364 .reg = PM8607_INT_STATUS1,
365 .mask_reg = PM8607_INT_MASK_1,
366 .offs = 1 << 2,
367 },
368 [PM8607_IRQ_BAT] = {
369 .reg = PM8607_INT_STATUS1,
370 .mask_reg = PM8607_INT_MASK_1,
371 .offs = 1 << 3,
372 },
373 [PM8607_IRQ_RTC] = {
374 .reg = PM8607_INT_STATUS1,
375 .mask_reg = PM8607_INT_MASK_1,
376 .offs = 1 << 4,
377 },
378 [PM8607_IRQ_CC] = {
379 .reg = PM8607_INT_STATUS1,
380 .mask_reg = PM8607_INT_MASK_1,
381 .offs = 1 << 5,
382 },
383 [PM8607_IRQ_VBAT] = {
384 .reg = PM8607_INT_STATUS2,
385 .mask_reg = PM8607_INT_MASK_2,
386 .offs = 1 << 0,
387 },
388 [PM8607_IRQ_VCHG] = {
389 .reg = PM8607_INT_STATUS2,
390 .mask_reg = PM8607_INT_MASK_2,
391 .offs = 1 << 1,
392 },
393 [PM8607_IRQ_VSYS] = {
394 .reg = PM8607_INT_STATUS2,
395 .mask_reg = PM8607_INT_MASK_2,
396 .offs = 1 << 2,
397 },
398 [PM8607_IRQ_TINT] = {
399 .reg = PM8607_INT_STATUS2,
400 .mask_reg = PM8607_INT_MASK_2,
401 .offs = 1 << 3,
402 },
403 [PM8607_IRQ_GPADC0] = {
404 .reg = PM8607_INT_STATUS2,
405 .mask_reg = PM8607_INT_MASK_2,
406 .offs = 1 << 4,
407 },
408 [PM8607_IRQ_GPADC1] = {
409 .reg = PM8607_INT_STATUS2,
410 .mask_reg = PM8607_INT_MASK_2,
411 .offs = 1 << 5,
412 },
413 [PM8607_IRQ_GPADC2] = {
414 .reg = PM8607_INT_STATUS2,
415 .mask_reg = PM8607_INT_MASK_2,
416 .offs = 1 << 6,
417 },
418 [PM8607_IRQ_GPADC3] = {
419 .reg = PM8607_INT_STATUS2,
420 .mask_reg = PM8607_INT_MASK_2,
421 .offs = 1 << 7,
422 },
423 [PM8607_IRQ_AUDIO_SHORT] = {
424 .reg = PM8607_INT_STATUS3,
425 .mask_reg = PM8607_INT_MASK_3,
426 .offs = 1 << 0,
427 },
428 [PM8607_IRQ_PEN] = {
429 .reg = PM8607_INT_STATUS3,
430 .mask_reg = PM8607_INT_MASK_3,
431 .offs = 1 << 1,
432 },
433 [PM8607_IRQ_HEADSET] = {
434 .reg = PM8607_INT_STATUS3,
435 .mask_reg = PM8607_INT_MASK_3,
436 .offs = 1 << 2,
437 },
438 [PM8607_IRQ_HOOK] = {
439 .reg = PM8607_INT_STATUS3,
440 .mask_reg = PM8607_INT_MASK_3,
441 .offs = 1 << 3,
442 },
443 [PM8607_IRQ_MICIN] = {
444 .reg = PM8607_INT_STATUS3,
445 .mask_reg = PM8607_INT_MASK_3,
446 .offs = 1 << 4,
447 },
448 [PM8607_IRQ_CHG_FAIL] = {
449 .reg = PM8607_INT_STATUS3,
450 .mask_reg = PM8607_INT_MASK_3,
451 .offs = 1 << 5,
452 },
453 [PM8607_IRQ_CHG_DONE] = {
454 .reg = PM8607_INT_STATUS3,
455 .mask_reg = PM8607_INT_MASK_3,
456 .offs = 1 << 6,
457 },
458 [PM8607_IRQ_CHG_FAULT] = {
459 .reg = PM8607_INT_STATUS3,
460 .mask_reg = PM8607_INT_MASK_3,
461 .offs = 1 << 7,
462 },
463 };
464
465 static irqreturn_t pm860x_irq(int irq, void *data)
466 {
467 struct pm860x_chip *chip = data;
468 struct pm860x_irq_data *irq_data;
469 struct i2c_client *i2c;
470 int read_reg = -1, value = 0;
471 int i;
472
473 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
474 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
475 irq_data = &pm860x_irqs[i];
476 if (read_reg != irq_data->reg) {
477 read_reg = irq_data->reg;
478 value = pm860x_reg_read(i2c, irq_data->reg);
479 }
480 if (value & irq_data->enable)
481 handle_nested_irq(chip->irq_base + i);
482 }
483 return IRQ_HANDLED;
484 }
485
486 static void pm860x_irq_lock(struct irq_data *data)
487 {
488 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
489
490 mutex_lock(&chip->irq_lock);
491 }
492
493 static void pm860x_irq_sync_unlock(struct irq_data *data)
494 {
495 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
496 struct pm860x_irq_data *irq_data;
497 struct i2c_client *i2c;
498 static unsigned char cached[3] = {0x0, 0x0, 0x0};
499 unsigned char mask[3];
500 int i;
501
502 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
503 /* Load cached value. In initial, all IRQs are masked */
504 for (i = 0; i < 3; i++)
505 mask[i] = cached[i];
506 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
507 irq_data = &pm860x_irqs[i];
508 switch (irq_data->mask_reg) {
509 case PM8607_INT_MASK_1:
510 mask[0] &= ~irq_data->offs;
511 mask[0] |= irq_data->enable;
512 break;
513 case PM8607_INT_MASK_2:
514 mask[1] &= ~irq_data->offs;
515 mask[1] |= irq_data->enable;
516 break;
517 case PM8607_INT_MASK_3:
518 mask[2] &= ~irq_data->offs;
519 mask[2] |= irq_data->enable;
520 break;
521 default:
522 dev_err(chip->dev, "wrong IRQ\n");
523 break;
524 }
525 }
526 /* update mask into registers */
527 for (i = 0; i < 3; i++) {
528 if (mask[i] != cached[i]) {
529 cached[i] = mask[i];
530 pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]);
531 }
532 }
533
534 mutex_unlock(&chip->irq_lock);
535 }
536
537 static void pm860x_irq_enable(struct irq_data *data)
538 {
539 pm860x_irqs[data->hwirq].enable = pm860x_irqs[data->hwirq].offs;
540 }
541
542 static void pm860x_irq_disable(struct irq_data *data)
543 {
544 pm860x_irqs[data->hwirq].enable = 0;
545 }
546
547 static struct irq_chip pm860x_irq_chip = {
548 .name = "88pm860x",
549 .irq_bus_lock = pm860x_irq_lock,
550 .irq_bus_sync_unlock = pm860x_irq_sync_unlock,
551 .irq_enable = pm860x_irq_enable,
552 .irq_disable = pm860x_irq_disable,
553 };
554
555 static int pm860x_irq_domain_map(struct irq_domain *d, unsigned int virq,
556 irq_hw_number_t hw)
557 {
558 irq_set_chip_data(virq, d->host_data);
559 irq_set_chip_and_handler(virq, &pm860x_irq_chip, handle_edge_irq);
560 irq_set_nested_thread(virq, 1);
561 #ifdef CONFIG_ARM
562 set_irq_flags(virq, IRQF_VALID);
563 #else
564 irq_set_noprobe(virq);
565 #endif
566 return 0;
567 }
568
569 static struct irq_domain_ops pm860x_irq_domain_ops = {
570 .map = pm860x_irq_domain_map,
571 .xlate = irq_domain_xlate_onetwocell,
572 };
573
574 static int device_irq_init(struct pm860x_chip *chip,
575 struct pm860x_platform_data *pdata)
576 {
577 struct i2c_client *i2c = (chip->id == CHIP_PM8607) ?
578 chip->client : chip->companion;
579 unsigned char status_buf[INT_STATUS_NUM];
580 unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
581 int data, mask, ret = -EINVAL;
582 int nr_irqs, irq_base = -1;
583 struct device_node *node = i2c->dev.of_node;
584
585 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR
586 | PM8607_B0_MISC1_INT_MASK;
587 data = 0;
588 chip->irq_mode = 0;
589 if (pdata && pdata->irq_mode) {
590 /*
591 * irq_mode defines the way of clearing interrupt. If it's 1,
592 * clear IRQ by write. Otherwise, clear it by read.
593 * This control bit is valid from 88PM8607 B0 steping.
594 */
595 data |= PM8607_B0_MISC1_INT_CLEAR;
596 chip->irq_mode = 1;
597 }
598 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data);
599 if (ret < 0)
600 goto out;
601
602 /* mask all IRQs */
603 memset(status_buf, 0, INT_STATUS_NUM);
604 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1,
605 INT_STATUS_NUM, status_buf);
606 if (ret < 0)
607 goto out;
608
609 if (chip->irq_mode) {
610 /* clear interrupt status by write */
611 memset(status_buf, 0xFF, INT_STATUS_NUM);
612 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1,
613 INT_STATUS_NUM, status_buf);
614 } else {
615 /* clear interrupt status by read */
616 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1,
617 INT_STATUS_NUM, status_buf);
618 }
619 if (ret < 0)
620 goto out;
621
622 mutex_init(&chip->irq_lock);
623
624 if (pdata && pdata->irq_base)
625 irq_base = pdata->irq_base;
626 nr_irqs = ARRAY_SIZE(pm860x_irqs);
627 chip->irq_base = irq_alloc_descs(irq_base, 0, nr_irqs, 0);
628 if (chip->irq_base < 0) {
629 dev_err(&i2c->dev, "Failed to allocate interrupts, ret:%d\n",
630 chip->irq_base);
631 ret = -EBUSY;
632 goto out;
633 }
634 irq_domain_add_legacy(node, nr_irqs, chip->irq_base, 0,
635 &pm860x_irq_domain_ops, chip);
636 chip->core_irq = i2c->irq;
637 if (!chip->core_irq)
638 goto out;
639
640 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq,
641 flags | IRQF_ONESHOT, "88pm860x", chip);
642 if (ret) {
643 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret);
644 chip->core_irq = 0;
645 }
646
647 return 0;
648 out:
649 chip->core_irq = 0;
650 return ret;
651 }
652
653 static void device_irq_exit(struct pm860x_chip *chip)
654 {
655 if (chip->core_irq)
656 free_irq(chip->core_irq, chip);
657 }
658
659 int pm8606_osc_enable(struct pm860x_chip *chip, unsigned short client)
660 {
661 int ret = -EIO;
662 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ?
663 chip->client : chip->companion;
664
665 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client);
666 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n",
667 __func__, chip->osc_vote,
668 chip->osc_status);
669
670 mutex_lock(&chip->osc_lock);
671 /* Update voting status */
672 chip->osc_vote |= client;
673 /* If reference group is off - turn on*/
674 if (chip->osc_status != PM8606_REF_GP_OSC_ON) {
675 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN;
676 /* Enable Reference group Vsys */
677 if (pm860x_set_bits(i2c, PM8606_VSYS,
678 PM8606_VSYS_EN, PM8606_VSYS_EN))
679 goto out;
680
681 /*Enable Internal Oscillator */
682 if (pm860x_set_bits(i2c, PM8606_MISC,
683 PM8606_MISC_OSC_EN, PM8606_MISC_OSC_EN))
684 goto out;
685 /* Update status (only if writes succeed) */
686 chip->osc_status = PM8606_REF_GP_OSC_ON;
687 }
688 mutex_unlock(&chip->osc_lock);
689
690 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n",
691 __func__, chip->osc_vote,
692 chip->osc_status, ret);
693 return 0;
694 out:
695 mutex_unlock(&chip->osc_lock);
696 return ret;
697 }
698 EXPORT_SYMBOL(pm8606_osc_enable);
699
700 int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client)
701 {
702 int ret = -EIO;
703 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ?
704 chip->client : chip->companion;
705
706 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client);
707 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n",
708 __func__, chip->osc_vote,
709 chip->osc_status);
710
711 mutex_lock(&chip->osc_lock);
712 /*Update voting status */
713 chip->osc_vote &= ~(client);
714 /* If reference group is off and this is the last client to release
715 * - turn off */
716 if ((chip->osc_status != PM8606_REF_GP_OSC_OFF) &&
717 (chip->osc_vote == REF_GP_NO_CLIENTS)) {
718 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN;
719 /* Disable Reference group Vsys */
720 if (pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0))
721 goto out;
722 /* Disable Internal Oscillator */
723 if (pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0))
724 goto out;
725 chip->osc_status = PM8606_REF_GP_OSC_OFF;
726 }
727 mutex_unlock(&chip->osc_lock);
728
729 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n",
730 __func__, chip->osc_vote,
731 chip->osc_status, ret);
732 return 0;
733 out:
734 mutex_unlock(&chip->osc_lock);
735 return ret;
736 }
737 EXPORT_SYMBOL(pm8606_osc_disable);
738
739 static void device_osc_init(struct i2c_client *i2c)
740 {
741 struct pm860x_chip *chip = i2c_get_clientdata(i2c);
742
743 mutex_init(&chip->osc_lock);
744 /* init portofino reference group voting and status */
745 /* Disable Reference group Vsys */
746 pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0);
747 /* Disable Internal Oscillator */
748 pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0);
749
750 chip->osc_vote = REF_GP_NO_CLIENTS;
751 chip->osc_status = PM8606_REF_GP_OSC_OFF;
752 }
753
754 static void device_bk_init(struct pm860x_chip *chip,
755 struct pm860x_platform_data *pdata)
756 {
757 int ret, i;
758
759 if (pdata && pdata->backlight) {
760 if (pdata->num_backlights > ARRAY_SIZE(bk_devs))
761 pdata->num_backlights = ARRAY_SIZE(bk_devs);
762 for (i = 0; i < pdata->num_backlights; i++) {
763 bk_devs[i].platform_data = &pdata->backlight[i];
764 bk_devs[i].pdata_size =
765 sizeof(struct pm860x_backlight_pdata);
766 }
767 }
768 ret = mfd_add_devices(chip->dev, 0, bk_devs,
769 ARRAY_SIZE(bk_devs), NULL, 0, NULL);
770 if (ret < 0)
771 dev_err(chip->dev, "Failed to add backlight subdev\n");
772 }
773
774 static void device_led_init(struct pm860x_chip *chip,
775 struct pm860x_platform_data *pdata)
776 {
777 int ret, i;
778
779 if (pdata && pdata->led) {
780 if (pdata->num_leds > ARRAY_SIZE(led_devs))
781 pdata->num_leds = ARRAY_SIZE(led_devs);
782 for (i = 0; i < pdata->num_leds; i++) {
783 led_devs[i].platform_data = &pdata->led[i];
784 led_devs[i].pdata_size =
785 sizeof(struct pm860x_led_pdata);
786 }
787 }
788 ret = mfd_add_devices(chip->dev, 0, led_devs,
789 ARRAY_SIZE(led_devs), NULL, 0, NULL);
790 if (ret < 0) {
791 dev_err(chip->dev, "Failed to add led subdev\n");
792 return;
793 }
794 }
795
796 static void device_regulator_init(struct pm860x_chip *chip,
797 struct pm860x_platform_data *pdata)
798 {
799 int ret;
800
801 if (pdata == NULL)
802 return;
803 if (pdata->buck1) {
804 reg_devs[0].platform_data = pdata->buck1;
805 reg_devs[0].pdata_size = sizeof(struct regulator_init_data);
806 }
807 if (pdata->buck2) {
808 reg_devs[1].platform_data = pdata->buck2;
809 reg_devs[1].pdata_size = sizeof(struct regulator_init_data);
810 }
811 if (pdata->buck3) {
812 reg_devs[2].platform_data = pdata->buck3;
813 reg_devs[2].pdata_size = sizeof(struct regulator_init_data);
814 }
815 if (pdata->ldo1) {
816 reg_devs[3].platform_data = pdata->ldo1;
817 reg_devs[3].pdata_size = sizeof(struct regulator_init_data);
818 }
819 if (pdata->ldo2) {
820 reg_devs[4].platform_data = pdata->ldo2;
821 reg_devs[4].pdata_size = sizeof(struct regulator_init_data);
822 }
823 if (pdata->ldo3) {
824 reg_devs[5].platform_data = pdata->ldo3;
825 reg_devs[5].pdata_size = sizeof(struct regulator_init_data);
826 }
827 if (pdata->ldo4) {
828 reg_devs[6].platform_data = pdata->ldo4;
829 reg_devs[6].pdata_size = sizeof(struct regulator_init_data);
830 }
831 if (pdata->ldo5) {
832 reg_devs[7].platform_data = pdata->ldo5;
833 reg_devs[7].pdata_size = sizeof(struct regulator_init_data);
834 }
835 if (pdata->ldo6) {
836 reg_devs[8].platform_data = pdata->ldo6;
837 reg_devs[8].pdata_size = sizeof(struct regulator_init_data);
838 }
839 if (pdata->ldo7) {
840 reg_devs[9].platform_data = pdata->ldo7;
841 reg_devs[9].pdata_size = sizeof(struct regulator_init_data);
842 }
843 if (pdata->ldo8) {
844 reg_devs[10].platform_data = pdata->ldo8;
845 reg_devs[10].pdata_size = sizeof(struct regulator_init_data);
846 }
847 if (pdata->ldo9) {
848 reg_devs[11].platform_data = pdata->ldo9;
849 reg_devs[11].pdata_size = sizeof(struct regulator_init_data);
850 }
851 if (pdata->ldo10) {
852 reg_devs[12].platform_data = pdata->ldo10;
853 reg_devs[12].pdata_size = sizeof(struct regulator_init_data);
854 }
855 if (pdata->ldo12) {
856 reg_devs[13].platform_data = pdata->ldo12;
857 reg_devs[13].pdata_size = sizeof(struct regulator_init_data);
858 }
859 if (pdata->ldo_vibrator) {
860 reg_devs[14].platform_data = pdata->ldo_vibrator;
861 reg_devs[14].pdata_size = sizeof(struct regulator_init_data);
862 }
863 if (pdata->ldo14) {
864 reg_devs[15].platform_data = pdata->ldo14;
865 reg_devs[15].pdata_size = sizeof(struct regulator_init_data);
866 }
867 ret = mfd_add_devices(chip->dev, 0, reg_devs,
868 ARRAY_SIZE(reg_devs), NULL, 0, NULL);
869 if (ret < 0) {
870 dev_err(chip->dev, "Failed to add regulator subdev\n");
871 return;
872 }
873 }
874
875 static void device_rtc_init(struct pm860x_chip *chip,
876 struct pm860x_platform_data *pdata)
877 {
878 int ret;
879
880 if (!pdata)
881 return;
882
883 rtc_devs[0].platform_data = pdata->rtc;
884 rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata);
885 rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources);
886 rtc_devs[0].resources = &rtc_resources[0];
887 ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0],
888 ARRAY_SIZE(rtc_devs), &rtc_resources[0],
889 chip->irq_base, NULL);
890 if (ret < 0)
891 dev_err(chip->dev, "Failed to add rtc subdev\n");
892 }
893
894 static void device_touch_init(struct pm860x_chip *chip,
895 struct pm860x_platform_data *pdata)
896 {
897 int ret;
898
899 if (pdata == NULL)
900 return;
901
902 touch_devs[0].platform_data = pdata->touch;
903 touch_devs[0].pdata_size = sizeof(struct pm860x_touch_pdata);
904 touch_devs[0].num_resources = ARRAY_SIZE(touch_resources);
905 touch_devs[0].resources = &touch_resources[0];
906 ret = mfd_add_devices(chip->dev, 0, &touch_devs[0],
907 ARRAY_SIZE(touch_devs), &touch_resources[0],
908 chip->irq_base, NULL);
909 if (ret < 0)
910 dev_err(chip->dev, "Failed to add touch subdev\n");
911 }
912
913 static void device_power_init(struct pm860x_chip *chip,
914 struct pm860x_platform_data *pdata)
915 {
916 int ret;
917
918 if (pdata == NULL)
919 return;
920
921 power_devs[0].platform_data = pdata->power;
922 power_devs[0].pdata_size = sizeof(struct pm860x_power_pdata);
923 power_devs[0].num_resources = ARRAY_SIZE(battery_resources);
924 power_devs[0].resources = &battery_resources[0],
925 ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1,
926 &battery_resources[0], chip->irq_base, NULL);
927 if (ret < 0)
928 dev_err(chip->dev, "Failed to add battery subdev\n");
929
930 power_devs[1].platform_data = pdata->power;
931 power_devs[1].pdata_size = sizeof(struct pm860x_power_pdata);
932 power_devs[1].num_resources = ARRAY_SIZE(charger_resources);
933 power_devs[1].resources = &charger_resources[0],
934 ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1,
935 &charger_resources[0], chip->irq_base, NULL);
936 if (ret < 0)
937 dev_err(chip->dev, "Failed to add charger subdev\n");
938
939 power_devs[2].platform_data = &preg_init_data;
940 power_devs[2].pdata_size = sizeof(struct regulator_init_data);
941 ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1,
942 NULL, chip->irq_base, NULL);
943 if (ret < 0)
944 dev_err(chip->dev, "Failed to add preg subdev\n");
945
946 if (pdata->chg_desc) {
947 pdata->chg_desc->charger_regulators =
948 &chg_desc_regulator_data[0];
949 pdata->chg_desc->num_charger_regulators =
950 ARRAY_SIZE(chg_desc_regulator_data),
951 power_devs[3].platform_data = pdata->chg_desc;
952 power_devs[3].pdata_size = sizeof(*pdata->chg_desc);
953 ret = mfd_add_devices(chip->dev, 0, &power_devs[3], 1,
954 NULL, chip->irq_base, NULL);
955 if (ret < 0)
956 dev_err(chip->dev, "Failed to add chg-manager subdev\n");
957 }
958 }
959
960 static void device_onkey_init(struct pm860x_chip *chip,
961 struct pm860x_platform_data *pdata)
962 {
963 int ret;
964
965 onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources);
966 onkey_devs[0].resources = &onkey_resources[0],
967 ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0],
968 ARRAY_SIZE(onkey_devs), &onkey_resources[0],
969 chip->irq_base, NULL);
970 if (ret < 0)
971 dev_err(chip->dev, "Failed to add onkey subdev\n");
972 }
973
974 static void device_codec_init(struct pm860x_chip *chip,
975 struct pm860x_platform_data *pdata)
976 {
977 int ret;
978
979 codec_devs[0].num_resources = ARRAY_SIZE(codec_resources);
980 codec_devs[0].resources = &codec_resources[0],
981 ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
982 ARRAY_SIZE(codec_devs), &codec_resources[0], 0,
983 NULL);
984 if (ret < 0)
985 dev_err(chip->dev, "Failed to add codec subdev\n");
986 }
987
988 static void device_8607_init(struct pm860x_chip *chip,
989 struct i2c_client *i2c,
990 struct pm860x_platform_data *pdata)
991 {
992 int data, ret;
993
994 ret = pm860x_reg_read(i2c, PM8607_CHIP_ID);
995 if (ret < 0) {
996 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret);
997 goto out;
998 }
999 switch (ret & PM8607_VERSION_MASK) {
1000 case 0x40:
1001 case 0x50:
1002 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n",
1003 ret);
1004 break;
1005 default:
1006 dev_err(chip->dev,
1007 "Failed to detect Marvell 88PM8607. Chip ID: %02x\n",
1008 ret);
1009 goto out;
1010 }
1011
1012 ret = pm860x_reg_read(i2c, PM8607_BUCK3);
1013 if (ret < 0) {
1014 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret);
1015 goto out;
1016 }
1017 if (ret & PM8607_BUCK3_DOUBLE)
1018 chip->buck3_double = 1;
1019
1020 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1);
1021 if (ret < 0) {
1022 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret);
1023 goto out;
1024 }
1025
1026 if (pdata && (pdata->i2c_port == PI2C_PORT))
1027 data = PM8607_B0_MISC1_PI2C;
1028 else
1029 data = 0;
1030 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data);
1031 if (ret < 0) {
1032 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret);
1033 goto out;
1034 }
1035
1036 ret = device_irq_init(chip, pdata);
1037 if (ret < 0)
1038 goto out;
1039
1040 device_regulator_init(chip, pdata);
1041 device_rtc_init(chip, pdata);
1042 device_onkey_init(chip, pdata);
1043 device_touch_init(chip, pdata);
1044 device_power_init(chip, pdata);
1045 device_codec_init(chip, pdata);
1046 out:
1047 return;
1048 }
1049
1050 static void device_8606_init(struct pm860x_chip *chip,
1051 struct i2c_client *i2c,
1052 struct pm860x_platform_data *pdata)
1053 {
1054 device_osc_init(i2c);
1055 device_bk_init(chip, pdata);
1056 device_led_init(chip, pdata);
1057 }
1058
1059 static int pm860x_device_init(struct pm860x_chip *chip,
1060 struct pm860x_platform_data *pdata)
1061 {
1062 chip->core_irq = 0;
1063
1064 switch (chip->id) {
1065 case CHIP_PM8606:
1066 device_8606_init(chip, chip->client, pdata);
1067 break;
1068 case CHIP_PM8607:
1069 device_8607_init(chip, chip->client, pdata);
1070 break;
1071 }
1072
1073 if (chip->companion) {
1074 switch (chip->id) {
1075 case CHIP_PM8607:
1076 device_8606_init(chip, chip->companion, pdata);
1077 break;
1078 case CHIP_PM8606:
1079 device_8607_init(chip, chip->companion, pdata);
1080 break;
1081 }
1082 }
1083
1084 return 0;
1085 }
1086
1087 static void pm860x_device_exit(struct pm860x_chip *chip)
1088 {
1089 device_irq_exit(chip);
1090 mfd_remove_devices(chip->dev);
1091 }
1092
1093 static int verify_addr(struct i2c_client *i2c)
1094 {
1095 unsigned short addr_8607[] = {0x30, 0x34};
1096 unsigned short addr_8606[] = {0x10, 0x11};
1097 int size, i;
1098
1099 if (i2c == NULL)
1100 return 0;
1101 size = ARRAY_SIZE(addr_8606);
1102 for (i = 0; i < size; i++) {
1103 if (i2c->addr == *(addr_8606 + i))
1104 return CHIP_PM8606;
1105 }
1106 size = ARRAY_SIZE(addr_8607);
1107 for (i = 0; i < size; i++) {
1108 if (i2c->addr == *(addr_8607 + i))
1109 return CHIP_PM8607;
1110 }
1111 return 0;
1112 }
1113
1114 static const struct regmap_config pm860x_regmap_config = {
1115 .reg_bits = 8,
1116 .val_bits = 8,
1117 };
1118
1119 static int pm860x_dt_init(struct device_node *np,
1120 struct device *dev,
1121 struct pm860x_platform_data *pdata)
1122 {
1123 int ret;
1124
1125 if (of_get_property(np, "marvell,88pm860x-irq-read-clr", NULL))
1126 pdata->irq_mode = 1;
1127 ret = of_property_read_u32(np, "marvell,88pm860x-slave-addr",
1128 &pdata->companion_addr);
1129 if (ret) {
1130 dev_err(dev,
1131 "Not found \"marvell,88pm860x-slave-addr\" property\n");
1132 pdata->companion_addr = 0;
1133 }
1134 return 0;
1135 }
1136
1137 static int pm860x_probe(struct i2c_client *client,
1138 const struct i2c_device_id *id)
1139 {
1140 struct pm860x_platform_data *pdata = dev_get_platdata(&client->dev);
1141 struct device_node *node = client->dev.of_node;
1142 struct pm860x_chip *chip;
1143 int ret;
1144
1145 if (node && !pdata) {
1146 /* parse DT to get platform data */
1147 pdata = devm_kzalloc(&client->dev,
1148 sizeof(struct pm860x_platform_data),
1149 GFP_KERNEL);
1150 if (!pdata)
1151 return -ENOMEM;
1152 ret = pm860x_dt_init(node, &client->dev, pdata);
1153 if (ret)
1154 return ret;
1155 } else if (!pdata) {
1156 pr_info("No platform data in %s!\n", __func__);
1157 return -EINVAL;
1158 }
1159
1160 chip = devm_kzalloc(&client->dev,
1161 sizeof(struct pm860x_chip), GFP_KERNEL);
1162 if (chip == NULL)
1163 return -ENOMEM;
1164
1165 chip->id = verify_addr(client);
1166 chip->regmap = devm_regmap_init_i2c(client, &pm860x_regmap_config);
1167 if (IS_ERR(chip->regmap)) {
1168 ret = PTR_ERR(chip->regmap);
1169 dev_err(&client->dev, "Failed to allocate register map: %d\n",
1170 ret);
1171 return ret;
1172 }
1173 chip->client = client;
1174 i2c_set_clientdata(client, chip);
1175 chip->dev = &client->dev;
1176 dev_set_drvdata(chip->dev, chip);
1177
1178 /*
1179 * Both client and companion client shares same platform driver.
1180 * Driver distinguishes them by pdata->companion_addr.
1181 * pdata->companion_addr is only assigned if companion chip exists.
1182 * At the same time, the companion_addr shouldn't equal to client
1183 * address.
1184 */
1185 if (pdata->companion_addr && (pdata->companion_addr != client->addr)) {
1186 chip->companion_addr = pdata->companion_addr;
1187 chip->companion = i2c_new_dummy(chip->client->adapter,
1188 chip->companion_addr);
1189 if (!chip->companion) {
1190 dev_err(&client->dev,
1191 "Failed to allocate I2C companion device\n");
1192 return -ENODEV;
1193 }
1194 chip->regmap_companion = regmap_init_i2c(chip->companion,
1195 &pm860x_regmap_config);
1196 if (IS_ERR(chip->regmap_companion)) {
1197 ret = PTR_ERR(chip->regmap_companion);
1198 dev_err(&chip->companion->dev,
1199 "Failed to allocate register map: %d\n", ret);
1200 i2c_unregister_device(chip->companion);
1201 return ret;
1202 }
1203 i2c_set_clientdata(chip->companion, chip);
1204 }
1205
1206 pm860x_device_init(chip, pdata);
1207 return 0;
1208 }
1209
1210 static int pm860x_remove(struct i2c_client *client)
1211 {
1212 struct pm860x_chip *chip = i2c_get_clientdata(client);
1213
1214 pm860x_device_exit(chip);
1215 if (chip->companion) {
1216 regmap_exit(chip->regmap_companion);
1217 i2c_unregister_device(chip->companion);
1218 }
1219 return 0;
1220 }
1221
1222 #ifdef CONFIG_PM_SLEEP
1223 static int pm860x_suspend(struct device *dev)
1224 {
1225 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
1226 struct pm860x_chip *chip = i2c_get_clientdata(client);
1227
1228 if (device_may_wakeup(dev) && chip->wakeup_flag)
1229 enable_irq_wake(chip->core_irq);
1230 return 0;
1231 }
1232
1233 static int pm860x_resume(struct device *dev)
1234 {
1235 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
1236 struct pm860x_chip *chip = i2c_get_clientdata(client);
1237
1238 if (device_may_wakeup(dev) && chip->wakeup_flag)
1239 disable_irq_wake(chip->core_irq);
1240 return 0;
1241 }
1242 #endif
1243
1244 static SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume);
1245
1246 static const struct i2c_device_id pm860x_id_table[] = {
1247 { "88PM860x", 0 },
1248 {}
1249 };
1250 MODULE_DEVICE_TABLE(i2c, pm860x_id_table);
1251
1252 static const struct of_device_id pm860x_dt_ids[] = {
1253 { .compatible = "marvell,88pm860x", },
1254 {},
1255 };
1256 MODULE_DEVICE_TABLE(of, pm860x_dt_ids);
1257
1258 static struct i2c_driver pm860x_driver = {
1259 .driver = {
1260 .name = "88PM860x",
1261 .owner = THIS_MODULE,
1262 .pm = &pm860x_pm_ops,
1263 .of_match_table = pm860x_dt_ids,
1264 },
1265 .probe = pm860x_probe,
1266 .remove = pm860x_remove,
1267 .id_table = pm860x_id_table,
1268 };
1269
1270 static int __init pm860x_i2c_init(void)
1271 {
1272 int ret;
1273 ret = i2c_add_driver(&pm860x_driver);
1274 if (ret != 0)
1275 pr_err("Failed to register 88PM860x I2C driver: %d\n", ret);
1276 return ret;
1277 }
1278 subsys_initcall(pm860x_i2c_init);
1279
1280 static void __exit pm860x_i2c_exit(void)
1281 {
1282 i2c_del_driver(&pm860x_driver);
1283 }
1284 module_exit(pm860x_i2c_exit);
1285
1286 MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x");
1287 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
1288 MODULE_LICENSE("GPL");
Linux with added FPC-III support