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PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / mfd / 88pm860x-core.c
blobc9b1f6422941eeaf628a0f7a65fd4e65053a8a14
1 /*
2 * Base driver for Marvell 88PM8607
3 *
4 * Copyright (C) 2009 Marvell International Ltd.
5 * Haojian Zhuang <haojian.zhuang@marvell.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12 #include <linux/kernel.h>
13 #include <linux/module.h>
14 #include <linux/err.h>
15 #include <linux/i2c.h>
16 #include <linux/irq.h>
17 #include <linux/interrupt.h>
18 #include <linux/irqdomain.h>
19 #include <linux/of.h>
20 #include <linux/of_platform.h>
21 #include <linux/platform_device.h>
22 #include <linux/regmap.h>
23 #include <linux/slab.h>
24 #include <linux/mfd/core.h>
25 #include <linux/mfd/88pm860x.h>
26 #include <linux/regulator/machine.h>
27 #include <linux/power/charger-manager.h>
28
29 #define INT_STATUS_NUM 3
30
31 static struct resource bk0_resources[] = {
32 {2, 2, "duty cycle", IORESOURCE_REG, },
33 {3, 3, "always on", IORESOURCE_REG, },
34 {3, 3, "current", IORESOURCE_REG, },
35 };
36 static struct resource bk1_resources[] = {
37 {4, 4, "duty cycle", IORESOURCE_REG, },
38 {5, 5, "always on", IORESOURCE_REG, },
39 {5, 5, "current", IORESOURCE_REG, },
40 };
41 static struct resource bk2_resources[] = {
42 {6, 6, "duty cycle", IORESOURCE_REG, },
43 {7, 7, "always on", IORESOURCE_REG, },
44 {5, 5, "current", IORESOURCE_REG, },
45 };
46
47 static struct resource led0_resources[] = {
48 /* RGB1 Red LED */
49 {0xd, 0xd, "control", IORESOURCE_REG, },
50 {0xc, 0xc, "blink", IORESOURCE_REG, },
51 };
52 static struct resource led1_resources[] = {
53 /* RGB1 Green LED */
54 {0xe, 0xe, "control", IORESOURCE_REG, },
55 {0xc, 0xc, "blink", IORESOURCE_REG, },
56 };
57 static struct resource led2_resources[] = {
58 /* RGB1 Blue LED */
59 {0xf, 0xf, "control", IORESOURCE_REG, },
60 {0xc, 0xc, "blink", IORESOURCE_REG, },
61 };
62 static struct resource led3_resources[] = {
63 /* RGB2 Red LED */
64 {0x9, 0x9, "control", IORESOURCE_REG, },
65 {0x8, 0x8, "blink", IORESOURCE_REG, },
66 };
67 static struct resource led4_resources[] = {
68 /* RGB2 Green LED */
69 {0xa, 0xa, "control", IORESOURCE_REG, },
70 {0x8, 0x8, "blink", IORESOURCE_REG, },
71 };
72 static struct resource led5_resources[] = {
73 /* RGB2 Blue LED */
74 {0xb, 0xb, "control", IORESOURCE_REG, },
75 {0x8, 0x8, "blink", IORESOURCE_REG, },
76 };
77
78 static struct resource buck1_resources[] = {
79 {0x24, 0x24, "buck set", IORESOURCE_REG, },
80 };
81 static struct resource buck2_resources[] = {
82 {0x25, 0x25, "buck set", IORESOURCE_REG, },
83 };
84 static struct resource buck3_resources[] = {
85 {0x26, 0x26, "buck set", IORESOURCE_REG, },
86 };
87 static struct resource ldo1_resources[] = {
88 {0x10, 0x10, "ldo set", IORESOURCE_REG, },
89 };
90 static struct resource ldo2_resources[] = {
91 {0x11, 0x11, "ldo set", IORESOURCE_REG, },
92 };
93 static struct resource ldo3_resources[] = {
94 {0x12, 0x12, "ldo set", IORESOURCE_REG, },
95 };
96 static struct resource ldo4_resources[] = {
97 {0x13, 0x13, "ldo set", IORESOURCE_REG, },
98 };
99 static struct resource ldo5_resources[] = {
100 {0x14, 0x14, "ldo set", IORESOURCE_REG, },
101 };
102 static struct resource ldo6_resources[] = {
103 {0x15, 0x15, "ldo set", IORESOURCE_REG, },
104 };
105 static struct resource ldo7_resources[] = {
106 {0x16, 0x16, "ldo set", IORESOURCE_REG, },
107 };
108 static struct resource ldo8_resources[] = {
109 {0x17, 0x17, "ldo set", IORESOURCE_REG, },
110 };
111 static struct resource ldo9_resources[] = {
112 {0x18, 0x18, "ldo set", IORESOURCE_REG, },
113 };
114 static struct resource ldo10_resources[] = {
115 {0x19, 0x19, "ldo set", IORESOURCE_REG, },
116 };
117 static struct resource ldo12_resources[] = {
118 {0x1a, 0x1a, "ldo set", IORESOURCE_REG, },
119 };
120 static struct resource ldo_vibrator_resources[] = {
121 {0x28, 0x28, "ldo set", IORESOURCE_REG, },
122 };
123 static struct resource ldo14_resources[] = {
124 {0x1b, 0x1b, "ldo set", IORESOURCE_REG, },
125 };
126
127 static struct resource touch_resources[] = {
128 {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,},
129 };
130
131 static struct resource onkey_resources[] = {
132 {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,},
133 };
134
135 static struct resource codec_resources[] = {
136 /* Headset microphone insertion or removal */
137 {PM8607_IRQ_MICIN, PM8607_IRQ_MICIN, "micin", IORESOURCE_IRQ,},
138 /* Hook-switch press or release */
139 {PM8607_IRQ_HOOK, PM8607_IRQ_HOOK, "hook", IORESOURCE_IRQ,},
140 /* Headset insertion or removal */
141 {PM8607_IRQ_HEADSET, PM8607_IRQ_HEADSET, "headset", IORESOURCE_IRQ,},
142 /* Audio short */
143 {PM8607_IRQ_AUDIO_SHORT, PM8607_IRQ_AUDIO_SHORT, "audio-short", IORESOURCE_IRQ,},
144 };
145
146 static struct resource battery_resources[] = {
147 {PM8607_IRQ_CC, PM8607_IRQ_CC, "columb counter", IORESOURCE_IRQ,},
148 {PM8607_IRQ_BAT, PM8607_IRQ_BAT, "battery", IORESOURCE_IRQ,},
149 };
150
151 static struct resource charger_resources[] = {
152 {PM8607_IRQ_CHG, PM8607_IRQ_CHG, "charger detect", IORESOURCE_IRQ,},
153 {PM8607_IRQ_CHG_DONE, PM8607_IRQ_CHG_DONE, "charging done", IORESOURCE_IRQ,},
154 {PM8607_IRQ_CHG_FAIL, PM8607_IRQ_CHG_FAIL, "charging timeout", IORESOURCE_IRQ,},
155 {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging fault", IORESOURCE_IRQ,},
156 {PM8607_IRQ_GPADC1, PM8607_IRQ_GPADC1, "battery temperature", IORESOURCE_IRQ,},
157 {PM8607_IRQ_VBAT, PM8607_IRQ_VBAT, "battery voltage", IORESOURCE_IRQ,},
158 {PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage", IORESOURCE_IRQ,},
159 };
160
161 static struct resource rtc_resources[] = {
162 {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,},
163 };
164
165 static struct mfd_cell bk_devs[] = {
166 {
167 .name = "88pm860x-backlight",
168 .id = 0,
169 .num_resources = ARRAY_SIZE(bk0_resources),
170 .resources = bk0_resources,
171 }, {
172 .name = "88pm860x-backlight",
173 .id = 1,
174 .num_resources = ARRAY_SIZE(bk1_resources),
175 .resources = bk1_resources,
176 }, {
177 .name = "88pm860x-backlight",
178 .id = 2,
179 .num_resources = ARRAY_SIZE(bk2_resources),
180 .resources = bk2_resources,
181 },
182 };
183
184 static struct mfd_cell led_devs[] = {
185 {
186 .name = "88pm860x-led",
187 .id = 0,
188 .num_resources = ARRAY_SIZE(led0_resources),
189 .resources = led0_resources,
190 }, {
191 .name = "88pm860x-led",
192 .id = 1,
193 .num_resources = ARRAY_SIZE(led1_resources),
194 .resources = led1_resources,
195 }, {
196 .name = "88pm860x-led",
197 .id = 2,
198 .num_resources = ARRAY_SIZE(led2_resources),
199 .resources = led2_resources,
200 }, {
201 .name = "88pm860x-led",
202 .id = 3,
203 .num_resources = ARRAY_SIZE(led3_resources),
204 .resources = led3_resources,
205 }, {
206 .name = "88pm860x-led",
207 .id = 4,
208 .num_resources = ARRAY_SIZE(led4_resources),
209 .resources = led4_resources,
210 }, {
211 .name = "88pm860x-led",
212 .id = 5,
213 .num_resources = ARRAY_SIZE(led5_resources),
214 .resources = led5_resources,
215 },
216 };
217
218 static struct mfd_cell reg_devs[] = {
219 {
220 .name = "88pm860x-regulator",
221 .id = 0,
222 .num_resources = ARRAY_SIZE(buck1_resources),
223 .resources = buck1_resources,
224 }, {
225 .name = "88pm860x-regulator",
226 .id = 1,
227 .num_resources = ARRAY_SIZE(buck2_resources),
228 .resources = buck2_resources,
229 }, {
230 .name = "88pm860x-regulator",
231 .id = 2,
232 .num_resources = ARRAY_SIZE(buck3_resources),
233 .resources = buck3_resources,
234 }, {
235 .name = "88pm860x-regulator",
236 .id = 3,
237 .num_resources = ARRAY_SIZE(ldo1_resources),
238 .resources = ldo1_resources,
239 }, {
240 .name = "88pm860x-regulator",
241 .id = 4,
242 .num_resources = ARRAY_SIZE(ldo2_resources),
243 .resources = ldo2_resources,
244 }, {
245 .name = "88pm860x-regulator",
246 .id = 5,
247 .num_resources = ARRAY_SIZE(ldo3_resources),
248 .resources = ldo3_resources,
249 }, {
250 .name = "88pm860x-regulator",
251 .id = 6,
252 .num_resources = ARRAY_SIZE(ldo4_resources),
253 .resources = ldo4_resources,
254 }, {
255 .name = "88pm860x-regulator",
256 .id = 7,
257 .num_resources = ARRAY_SIZE(ldo5_resources),
258 .resources = ldo5_resources,
259 }, {
260 .name = "88pm860x-regulator",
261 .id = 8,
262 .num_resources = ARRAY_SIZE(ldo6_resources),
263 .resources = ldo6_resources,
264 }, {
265 .name = "88pm860x-regulator",
266 .id = 9,
267 .num_resources = ARRAY_SIZE(ldo7_resources),
268 .resources = ldo7_resources,
269 }, {
270 .name = "88pm860x-regulator",
271 .id = 10,
272 .num_resources = ARRAY_SIZE(ldo8_resources),
273 .resources = ldo8_resources,
274 }, {
275 .name = "88pm860x-regulator",
276 .id = 11,
277 .num_resources = ARRAY_SIZE(ldo9_resources),
278 .resources = ldo9_resources,
279 }, {
280 .name = "88pm860x-regulator",
281 .id = 12,
282 .num_resources = ARRAY_SIZE(ldo10_resources),
283 .resources = ldo10_resources,
284 }, {
285 .name = "88pm860x-regulator",
286 .id = 13,
287 .num_resources = ARRAY_SIZE(ldo12_resources),
288 .resources = ldo12_resources,
289 }, {
290 .name = "88pm860x-regulator",
291 .id = 14,
292 .num_resources = ARRAY_SIZE(ldo_vibrator_resources),
293 .resources = ldo_vibrator_resources,
294 }, {
295 .name = "88pm860x-regulator",
296 .id = 15,
297 .num_resources = ARRAY_SIZE(ldo14_resources),
298 .resources = ldo14_resources,
299 },
300 };
301
302 static struct mfd_cell touch_devs[] = {
303 {"88pm860x-touch", -1,},
304 };
305
306 static struct mfd_cell onkey_devs[] = {
307 {"88pm860x-onkey", -1,},
308 };
309
310 static struct mfd_cell codec_devs[] = {
311 {"88pm860x-codec", -1,},
312 };
313
314 static struct regulator_consumer_supply preg_supply[] = {
315 REGULATOR_SUPPLY("preg", "charger-manager"),
316 };
317
318 static struct regulator_init_data preg_init_data = {
319 .num_consumer_supplies = ARRAY_SIZE(preg_supply),
320 .consumer_supplies = &preg_supply[0],
321 };
322
323 static struct charger_regulator chg_desc_regulator_data[] = {
324 { .regulator_name = "preg", },
325 };
326
327 static struct mfd_cell power_devs[] = {
328 {"88pm860x-battery", -1,},
329 {"88pm860x-charger", -1,},
330 {"88pm860x-preg", -1,},
331 {"charger-manager", -1,},
332 };
333
334 static struct mfd_cell rtc_devs[] = {
335 {"88pm860x-rtc", -1,},
336 };
337
338
339 struct pm860x_irq_data {
340 int reg;
341 int mask_reg;
342 int enable; /* enable or not */
343 int offs; /* bit offset in mask register */
344 };
345
346 static struct pm860x_irq_data pm860x_irqs[] = {
347 [PM8607_IRQ_ONKEY] = {
348 .reg = PM8607_INT_STATUS1,
349 .mask_reg = PM8607_INT_MASK_1,
350 .offs = 1 << 0,
351 },
352 [PM8607_IRQ_EXTON] = {
353 .reg = PM8607_INT_STATUS1,
354 .mask_reg = PM8607_INT_MASK_1,
355 .offs = 1 << 1,
356 },
357 [PM8607_IRQ_CHG] = {
358 .reg = PM8607_INT_STATUS1,
359 .mask_reg = PM8607_INT_MASK_1,
360 .offs = 1 << 2,
361 },
362 [PM8607_IRQ_BAT] = {
363 .reg = PM8607_INT_STATUS1,
364 .mask_reg = PM8607_INT_MASK_1,
365 .offs = 1 << 3,
366 },
367 [PM8607_IRQ_RTC] = {
368 .reg = PM8607_INT_STATUS1,
369 .mask_reg = PM8607_INT_MASK_1,
370 .offs = 1 << 4,
371 },
372 [PM8607_IRQ_CC] = {
373 .reg = PM8607_INT_STATUS1,
374 .mask_reg = PM8607_INT_MASK_1,
375 .offs = 1 << 5,
376 },
377 [PM8607_IRQ_VBAT] = {
378 .reg = PM8607_INT_STATUS2,
379 .mask_reg = PM8607_INT_MASK_2,
380 .offs = 1 << 0,
381 },
382 [PM8607_IRQ_VCHG] = {
383 .reg = PM8607_INT_STATUS2,
384 .mask_reg = PM8607_INT_MASK_2,
385 .offs = 1 << 1,
386 },
387 [PM8607_IRQ_VSYS] = {
388 .reg = PM8607_INT_STATUS2,
389 .mask_reg = PM8607_INT_MASK_2,
390 .offs = 1 << 2,
391 },
392 [PM8607_IRQ_TINT] = {
393 .reg = PM8607_INT_STATUS2,
394 .mask_reg = PM8607_INT_MASK_2,
395 .offs = 1 << 3,
396 },
397 [PM8607_IRQ_GPADC0] = {
398 .reg = PM8607_INT_STATUS2,
399 .mask_reg = PM8607_INT_MASK_2,
400 .offs = 1 << 4,
401 },
402 [PM8607_IRQ_GPADC1] = {
403 .reg = PM8607_INT_STATUS2,
404 .mask_reg = PM8607_INT_MASK_2,
405 .offs = 1 << 5,
406 },
407 [PM8607_IRQ_GPADC2] = {
408 .reg = PM8607_INT_STATUS2,
409 .mask_reg = PM8607_INT_MASK_2,
410 .offs = 1 << 6,
411 },
412 [PM8607_IRQ_GPADC3] = {
413 .reg = PM8607_INT_STATUS2,
414 .mask_reg = PM8607_INT_MASK_2,
415 .offs = 1 << 7,
416 },
417 [PM8607_IRQ_AUDIO_SHORT] = {
418 .reg = PM8607_INT_STATUS3,
419 .mask_reg = PM8607_INT_MASK_3,
420 .offs = 1 << 0,
421 },
422 [PM8607_IRQ_PEN] = {
423 .reg = PM8607_INT_STATUS3,
424 .mask_reg = PM8607_INT_MASK_3,
425 .offs = 1 << 1,
426 },
427 [PM8607_IRQ_HEADSET] = {
428 .reg = PM8607_INT_STATUS3,
429 .mask_reg = PM8607_INT_MASK_3,
430 .offs = 1 << 2,
431 },
432 [PM8607_IRQ_HOOK] = {
433 .reg = PM8607_INT_STATUS3,
434 .mask_reg = PM8607_INT_MASK_3,
435 .offs = 1 << 3,
436 },
437 [PM8607_IRQ_MICIN] = {
438 .reg = PM8607_INT_STATUS3,
439 .mask_reg = PM8607_INT_MASK_3,
440 .offs = 1 << 4,
441 },
442 [PM8607_IRQ_CHG_FAIL] = {
443 .reg = PM8607_INT_STATUS3,
444 .mask_reg = PM8607_INT_MASK_3,
445 .offs = 1 << 5,
446 },
447 [PM8607_IRQ_CHG_DONE] = {
448 .reg = PM8607_INT_STATUS3,
449 .mask_reg = PM8607_INT_MASK_3,
450 .offs = 1 << 6,
451 },
452 [PM8607_IRQ_CHG_FAULT] = {
453 .reg = PM8607_INT_STATUS3,
454 .mask_reg = PM8607_INT_MASK_3,
455 .offs = 1 << 7,
456 },
457 };
458
459 static irqreturn_t pm860x_irq(int irq, void *data)
460 {
461 struct pm860x_chip *chip = data;
462 struct pm860x_irq_data *irq_data;
463 struct i2c_client *i2c;
464 int read_reg = -1, value = 0;
465 int i;
466
467 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
468 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
469 irq_data = &pm860x_irqs[i];
470 if (read_reg != irq_data->reg) {
471 read_reg = irq_data->reg;
472 value = pm860x_reg_read(i2c, irq_data->reg);
473 }
474 if (value & irq_data->enable)
475 handle_nested_irq(chip->irq_base + i);
476 }
477 return IRQ_HANDLED;
478 }
479
480 static void pm860x_irq_lock(struct irq_data *data)
481 {
482 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
483
484 mutex_lock(&chip->irq_lock);
485 }
486
487 static void pm860x_irq_sync_unlock(struct irq_data *data)
488 {
489 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
490 struct pm860x_irq_data *irq_data;
491 struct i2c_client *i2c;
492 static unsigned char cached[3] = {0x0, 0x0, 0x0};
493 unsigned char mask[3];
494 int i;
495
496 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
497 /* Load cached value. In initial, all IRQs are masked */
498 for (i = 0; i < 3; i++)
499 mask[i] = cached[i];
500 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
501 irq_data = &pm860x_irqs[i];
502 switch (irq_data->mask_reg) {
503 case PM8607_INT_MASK_1:
504 mask[0] &= ~irq_data->offs;
505 mask[0] |= irq_data->enable;
506 break;
507 case PM8607_INT_MASK_2:
508 mask[1] &= ~irq_data->offs;
509 mask[1] |= irq_data->enable;
510 break;
511 case PM8607_INT_MASK_3:
512 mask[2] &= ~irq_data->offs;
513 mask[2] |= irq_data->enable;
514 break;
515 default:
516 dev_err(chip->dev, "wrong IRQ\n");
517 break;
518 }
519 }
520 /* update mask into registers */
521 for (i = 0; i < 3; i++) {
522 if (mask[i] != cached[i]) {
523 cached[i] = mask[i];
524 pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]);
525 }
526 }
527
528 mutex_unlock(&chip->irq_lock);
529 }
530
531 static void pm860x_irq_enable(struct irq_data *data)
532 {
533 pm860x_irqs[data->hwirq].enable = pm860x_irqs[data->hwirq].offs;
534 }
535
536 static void pm860x_irq_disable(struct irq_data *data)
537 {
538 pm860x_irqs[data->hwirq].enable = 0;
539 }
540
541 static struct irq_chip pm860x_irq_chip = {
542 .name = "88pm860x",
543 .irq_bus_lock = pm860x_irq_lock,
544 .irq_bus_sync_unlock = pm860x_irq_sync_unlock,
545 .irq_enable = pm860x_irq_enable,
546 .irq_disable = pm860x_irq_disable,
547 };
548
549 static int pm860x_irq_domain_map(struct irq_domain *d, unsigned int virq,
550 irq_hw_number_t hw)
551 {
552 irq_set_chip_data(virq, d->host_data);
553 irq_set_chip_and_handler(virq, &pm860x_irq_chip, handle_edge_irq);
554 irq_set_nested_thread(virq, 1);
555 #ifdef CONFIG_ARM
556 set_irq_flags(virq, IRQF_VALID);
557 #else
558 irq_set_noprobe(virq);
559 #endif
560 return 0;
561 }
562
563 static struct irq_domain_ops pm860x_irq_domain_ops = {
564 .map = pm860x_irq_domain_map,
565 .xlate = irq_domain_xlate_onetwocell,
566 };
567
568 static int device_irq_init(struct pm860x_chip *chip,
569 struct pm860x_platform_data *pdata)
570 {
571 struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \
572 : chip->companion;
573 unsigned char status_buf[INT_STATUS_NUM];
574 unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
575 int data, mask, ret = -EINVAL;
576 int nr_irqs, irq_base = -1;
577 struct device_node *node = i2c->dev.of_node;
578
579 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR
580 | PM8607_B0_MISC1_INT_MASK;
581 data = 0;
582 chip->irq_mode = 0;
583 if (pdata && pdata->irq_mode) {
584 /*
585 * irq_mode defines the way of clearing interrupt. If it's 1,
586 * clear IRQ by write. Otherwise, clear it by read.
587 * This control bit is valid from 88PM8607 B0 steping.
588 */
589 data |= PM8607_B0_MISC1_INT_CLEAR;
590 chip->irq_mode = 1;
591 }
592 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data);
593 if (ret < 0)
594 goto out;
595
596 /* mask all IRQs */
597 memset(status_buf, 0, INT_STATUS_NUM);
598 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1,
599 INT_STATUS_NUM, status_buf);
600 if (ret < 0)
601 goto out;
602
603 if (chip->irq_mode) {
604 /* clear interrupt status by write */
605 memset(status_buf, 0xFF, INT_STATUS_NUM);
606 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1,
607 INT_STATUS_NUM, status_buf);
608 } else {
609 /* clear interrupt status by read */
610 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1,
611 INT_STATUS_NUM, status_buf);
612 }
613 if (ret < 0)
614 goto out;
615
616 mutex_init(&chip->irq_lock);
617
618 if (pdata && pdata->irq_base)
619 irq_base = pdata->irq_base;
620 nr_irqs = ARRAY_SIZE(pm860x_irqs);
621 chip->irq_base = irq_alloc_descs(irq_base, 0, nr_irqs, 0);
622 if (chip->irq_base < 0) {
623 dev_err(&i2c->dev, "Failed to allocate interrupts, ret:%d\n",
624 chip->irq_base);
625 ret = -EBUSY;
626 goto out;
627 }
628 irq_domain_add_legacy(node, nr_irqs, chip->irq_base, 0,
629 &pm860x_irq_domain_ops, chip);
630 chip->core_irq = i2c->irq;
631 if (!chip->core_irq)
632 goto out;
633
634 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq, flags | IRQF_ONESHOT,
635 "88pm860x", chip);
636 if (ret) {
637 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret);
638 chip->core_irq = 0;
639 }
640
641 return 0;
642 out:
643 chip->core_irq = 0;
644 return ret;
645 }
646
647 static void device_irq_exit(struct pm860x_chip *chip)
648 {
649 if (chip->core_irq)
650 free_irq(chip->core_irq, chip);
651 }
652
653 int pm8606_osc_enable(struct pm860x_chip *chip, unsigned short client)
654 {
655 int ret = -EIO;
656 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ?
657 chip->client : chip->companion;
658
659 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client);
660 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n",
661 __func__, chip->osc_vote,
662 chip->osc_status);
663
664 mutex_lock(&chip->osc_lock);
665 /* Update voting status */
666 chip->osc_vote |= client;
667 /* If reference group is off - turn on*/
668 if (chip->osc_status != PM8606_REF_GP_OSC_ON) {
669 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN;
670 /* Enable Reference group Vsys */
671 if (pm860x_set_bits(i2c, PM8606_VSYS,
672 PM8606_VSYS_EN, PM8606_VSYS_EN))
673 goto out;
674
675 /*Enable Internal Oscillator */
676 if (pm860x_set_bits(i2c, PM8606_MISC,
677 PM8606_MISC_OSC_EN, PM8606_MISC_OSC_EN))
678 goto out;
679 /* Update status (only if writes succeed) */
680 chip->osc_status = PM8606_REF_GP_OSC_ON;
681 }
682 mutex_unlock(&chip->osc_lock);
683
684 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n",
685 __func__, chip->osc_vote,
686 chip->osc_status, ret);
687 return 0;
688 out:
689 mutex_unlock(&chip->osc_lock);
690 return ret;
691 }
692 EXPORT_SYMBOL(pm8606_osc_enable);
693
694 int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client)
695 {
696 int ret = -EIO;
697 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ?
698 chip->client : chip->companion;
699
700 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client);
701 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n",
702 __func__, chip->osc_vote,
703 chip->osc_status);
704
705 mutex_lock(&chip->osc_lock);
706 /*Update voting status */
707 chip->osc_vote &= ~(client);
708 /* If reference group is off and this is the last client to release
709 * - turn off */
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
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
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
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
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
869 static void device_rtc_init(struct pm860x_chip *chip,
870 struct pm860x_platform_data *pdata)
871 {
872 int ret;
873
874 if ((pdata == NULL))
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
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
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
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
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
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, "Failed to detect Marvell 88PM8607. "
1001 "Chip ID: %02x\n", ret);
1002 goto out;
1003 }
1004
1005 ret = pm860x_reg_read(i2c, PM8607_BUCK3);
1006 if (ret < 0) {
1007 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret);
1008 goto out;
1009 }
1010 if (ret & PM8607_BUCK3_DOUBLE)
1011 chip->buck3_double = 1;
1012
1013 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1);
1014 if (ret < 0) {
1015 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret);
1016 goto out;
1017 }
1018
1019 if (pdata && (pdata->i2c_port == PI2C_PORT))
1020 data = PM8607_B0_MISC1_PI2C;
1021 else
1022 data = 0;
1023 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data);
1024 if (ret < 0) {
1025 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret);
1026 goto out;
1027 }
1028
1029 ret = device_irq_init(chip, pdata);
1030 if (ret < 0)
1031 goto out;
1032
1033 device_regulator_init(chip, pdata);
1034 device_rtc_init(chip, pdata);
1035 device_onkey_init(chip, pdata);
1036 device_touch_init(chip, pdata);
1037 device_power_init(chip, pdata);
1038 device_codec_init(chip, pdata);
1039 out:
1040 return;
1041 }
1042
1043 static void device_8606_init(struct pm860x_chip *chip,
1044 struct i2c_client *i2c,
1045 struct pm860x_platform_data *pdata)
1046 {
1047 device_osc_init(i2c);
1048 device_bk_init(chip, pdata);
1049 device_led_init(chip, pdata);
1050 }
1051
1052 static int pm860x_device_init(struct pm860x_chip *chip,
1053 struct pm860x_platform_data *pdata)
1054 {
1055 chip->core_irq = 0;
1056
1057 switch (chip->id) {
1058 case CHIP_PM8606:
1059 device_8606_init(chip, chip->client, pdata);
1060 break;
1061 case CHIP_PM8607:
1062 device_8607_init(chip, chip->client, pdata);
1063 break;
1064 }
1065
1066 if (chip->companion) {
1067 switch (chip->id) {
1068 case CHIP_PM8607:
1069 device_8606_init(chip, chip->companion, pdata);
1070 break;
1071 case CHIP_PM8606:
1072 device_8607_init(chip, chip->companion, pdata);
1073 break;
1074 }
1075 }
1076
1077 return 0;
1078 }
1079
1080 static void pm860x_device_exit(struct pm860x_chip *chip)
1081 {
1082 device_irq_exit(chip);
1083 mfd_remove_devices(chip->dev);
1084 }
1085
1086 static int verify_addr(struct i2c_client *i2c)
1087 {
1088 unsigned short addr_8607[] = {0x30, 0x34};
1089 unsigned short addr_8606[] = {0x10, 0x11};
1090 int size, i;
1091
1092 if (i2c == NULL)
1093 return 0;
1094 size = ARRAY_SIZE(addr_8606);
1095 for (i = 0; i < size; i++) {
1096 if (i2c->addr == *(addr_8606 + i))
1097 return CHIP_PM8606;
1098 }
1099 size = ARRAY_SIZE(addr_8607);
1100 for (i = 0; i < size; i++) {
1101 if (i2c->addr == *(addr_8607 + i))
1102 return CHIP_PM8607;
1103 }
1104 return 0;
1105 }
1106
1107 static struct regmap_config pm860x_regmap_config = {
1108 .reg_bits = 8,
1109 .val_bits = 8,
1110 };
1111
1112 static int pm860x_dt_init(struct device_node *np,
1113 struct device *dev,
1114 struct pm860x_platform_data *pdata)
1115 {
1116 int ret;
1117
1118 if (of_get_property(np, "marvell,88pm860x-irq-read-clr", NULL))
1119 pdata->irq_mode = 1;
1120 ret = of_property_read_u32(np, "marvell,88pm860x-slave-addr",
1121 &pdata->companion_addr);
1122 if (ret) {
1123 dev_err(dev, "Not found \"marvell,88pm860x-slave-addr\" "
1124 "property\n");
1125 pdata->companion_addr = 0;
1126 }
1127 return 0;
1128 }
1129
1130 static int pm860x_probe(struct i2c_client *client,
1131 const struct i2c_device_id *id)
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 dev_set_drvdata(chip->dev, chip);
1170
1171 /*
1172 * Both client and companion client shares same platform driver.
1173 * Driver distinguishes them by pdata->companion_addr.
1174 * pdata->companion_addr is only assigned if companion chip exists.
1175 * At the same time, the companion_addr shouldn't equal to client
1176 * address.
1177 */
1178 if (pdata->companion_addr && (pdata->companion_addr != client->addr)) {
1179 chip->companion_addr = pdata->companion_addr;
1180 chip->companion = i2c_new_dummy(chip->client->adapter,
1181 chip->companion_addr);
1182 chip->regmap_companion = regmap_init_i2c(chip->companion,
1183 &pm860x_regmap_config);
1184 if (IS_ERR(chip->regmap_companion)) {
1185 ret = PTR_ERR(chip->regmap_companion);
1186 dev_err(&chip->companion->dev,
1187 "Failed to allocate register map: %d\n", ret);
1188 return ret;
1189 }
1190 i2c_set_clientdata(chip->companion, chip);
1191 }
1192
1193 pm860x_device_init(chip, pdata);
1194 return 0;
1195 }
1196
1197 static int pm860x_remove(struct i2c_client *client)
1198 {
1199 struct pm860x_chip *chip = i2c_get_clientdata(client);
1200
1201 pm860x_device_exit(chip);
1202 if (chip->companion) {
1203 regmap_exit(chip->regmap_companion);
1204 i2c_unregister_device(chip->companion);
1205 }
1206 return 0;
1207 }
1208
1209 #ifdef CONFIG_PM_SLEEP
1210 static int pm860x_suspend(struct device *dev)
1211 {
1212 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
1213 struct pm860x_chip *chip = i2c_get_clientdata(client);
1214
1215 if (device_may_wakeup(dev) && chip->wakeup_flag)
1216 enable_irq_wake(chip->core_irq);
1217 return 0;
1218 }
1219
1220 static int pm860x_resume(struct device *dev)
1221 {
1222 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
1223 struct pm860x_chip *chip = i2c_get_clientdata(client);
1224
1225 if (device_may_wakeup(dev) && chip->wakeup_flag)
1226 disable_irq_wake(chip->core_irq);
1227 return 0;
1228 }
1229 #endif
1230
1231 static SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume);
1232
1233 static const struct i2c_device_id pm860x_id_table[] = {
1234 { "88PM860x", 0 },
1235 {}
1236 };
1237 MODULE_DEVICE_TABLE(i2c, pm860x_id_table);
1238
1239 static const struct of_device_id pm860x_dt_ids[] = {
1240 { .compatible = "marvell,88pm860x", },
1241 {},
1242 };
1243 MODULE_DEVICE_TABLE(of, pm860x_dt_ids);
1244
1245 static struct i2c_driver pm860x_driver = {
1246 .driver = {
1247 .name = "88PM860x",
1248 .owner = THIS_MODULE,
1249 .pm = &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
1257 static int __init pm860x_i2c_init(void)
1258 {
1259 int ret;
1260 ret = i2c_add_driver(&pm860x_driver);
1261 if (ret != 0)
1262 pr_err("Failed to register 88PM860x I2C driver: %d\n", ret);
1263 return ret;
1264 }
1265 subsys_initcall(pm860x_i2c_init);
1266
1267 static void __exit pm860x_i2c_exit(void)
1268 {
1269 i2c_del_driver(&pm860x_driver);
1270 }
1271 module_exit(pm860x_i2c_exit);
1272
1273 MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x");
1274 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
1275 MODULE_LICENSE("GPL");
Linux with added FPC-III support